WO2015188729A1

WO2015188729A1 - Video coding method and video decoding method and related device

Info

Publication number: WO2015188729A1
Application number: PCT/CN2015/080907
Authority: WO
Inventors: 郑萧桢
Original assignee: 华为技术有限公司
Priority date: 2014-06-09
Filing date: 2015-06-05
Publication date: 2015-12-17
Also published as: CN104038759B; CN104038759A

Abstract

Disclosed are a video coding method and video decoding method and related device. The video coding method comprises: obtaining an image; performing video coding on a first field image data of the image to obtain a first video coding frame; performing video coding on a second field image data of the image to obtain a second video coding frame; writing the first and second video coding frames into a video bit stream, the first field coding indication further indicating the sequence of the first and second video coding frames in the video bit stream. The above solution enables a video decoding device to correctly perform image fusion of different field image data of the same image obtained by decoding.

Description

Video coding method and decoding method and related device

The present application claims priority to Chinese Patent Application No. 201410253649.4, entitled "Video Coding Method and Decoding Method and Related Device", filed on June 9, 2014, the entire contents of which are incorporated herein by reference. In the application.

Technical field

The present invention relates to the field of video codec technology, and in particular, to a video encoding method, a video decoding method, and related devices.

Background technique

In video codec, in order to minimize the bandwidth required to transmit video data, it is possible to compress video data using a variety of video compression methods. Field coding technology is an encoding technology that can effectively improve the compression efficiency of video data.

In the field coding technique, an image is field-divided to obtain top field image data and top field image data. The top field image data is obtained by scanning odd line pixel point data in an image, and the bottom field data is obtained by scanning even line pixel point data in one image.

In the field coding, the image data of each field (top field or bottom field) in an image is encoded and decoded as independent video frame data, but the conventional video coding and decoding technology will encode two fields of one image. The data is encapsulated in an encoded frame. Since the top field and the bottom field respectively represent the odd-numbered lines and the even-numbered lines of image data of the image, the encoded data is stored in separate ways. Therefore, this encoding method complicates the method of acquiring the encoded data. Furthermore, since each field of data in an image is actually equivalent to a separate image at the time of field encoding, each field image is managed as a separate image in the reference frame management technique. For example, in hierarchical B-frame technology, the top field image and the bottom field image in one image can be given different priorities. Therefore, if the top field and bottom field image data are still encapsulated in one coded frame in the conventional way, the implementation complexity of the reference frame management technique is increased.

In view of the above problems, the prior art proposes to encode the top field and bottom field data of an image as a single image and independently encapsulate the field coded data into a single coded frame. This type of technology can effectively reduce the complexity of encoding data management and reference frame management, but it will introduce a A new technical problem, that is, each single-field image data obtained by decoding by the video decoding device is isolated from each other, so that it is difficult to determine how to correctly perform image blending of the obtained single-field image data.

Summary of the invention

Embodiments of the present invention provide a video encoding method, a video decoding method, and related devices.

In a first aspect, a video encoding method can include:

Get an image;

Performing video encoding on the first field image data of the image to obtain a first video encoding frame;

Performing video encoding on the second field image data of the image to obtain a second video encoding frame;

Writing the first video encoded frame and the second video encoded frame into a video code stream;

The first video coding frame includes a first field coding indication, and the first field coding indication indicates that the first video coding frame is a video coding frame corresponding to single field image data, and the first field coding indication is further Instructing the first video encoding frame to include single field image data as top field image data or bottom field image data, the first field encoding indication further indicating the first video encoding frame and the second video encoding frame a sequence of occurrences in the video stream;

The first field image data is top field image data, and the second field image data is bottom field image data, or the second field image data is top field image data, and the first field image is The data is bottom field image data.

In conjunction with the first aspect, in a first possible implementation of the first aspect,

The first field coding indication includes a first indication parameter and a second indication parameter;

The first indication parameter indicates that the first video coding frame is a video coding frame corresponding to single field image data, and the first indication parameter further indicates that the single video image data included in the first video coding frame is top. Field image data or bottom field image data;

The second indication parameter indicates a sequence in which the first video coding frame and the second video coding frame appear in the video code stream.

With reference to the first aspect, in a second possible implementation manner of the first aspect, the first field coding indication includes a third indication parameter, a fourth indication parameter, and a second indication parameter;

The third indication parameter indicates that the first video coding frame is a video coding frame corresponding to single field image data;

The fourth indication parameter indicates that the single video image data included in the first video coding frame is top Field image data or bottom field image data;

With reference to the first aspect or the first possible implementation manner of the first aspect or the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the second video encoding frame A second field coding indication is included, where the second field coding indication indicates that the second video coding frame is a video coding frame corresponding to single field image data, and the second field coding indication further indicates that the second video coding frame includes The single field image data is bottom field image data or top field image data, and the second field code indication further indicates that the second video coded frame and the first video coded frame appear in the video code stream. In order.

In a second aspect, a video decoding method includes:

Performing video decoding on the first video decoded frame in the video code stream to obtain first image decoded data;

Performing video decoding on the second video decoded frame in the video code stream to obtain second image decoding data;

The first video decoding frame includes a first field coding indication, where the first field coding indication indicates that the first video decoding frame is a video decoding frame corresponding to single field image data, and the first field coding indication is further Instructing the first video decoding frame to include single field image data as top field image data or bottom field image data, and the first field encoding indication further indicating the first video decoding frame and the first video decoding frame The order in which the homologous video decoded frames appear in the video codestream; wherein the first video decoded frame and the homogenous video decoded frame are obtained based on image data of different fields of the same image;

And blending the first image decoding data and the second image decoding data according to the first field encoding instruction to obtain a blending image.

In conjunction with the second aspect, in a first possible implementation of the second aspect,

The first indication parameter indication indicates that the first video decoding frame is a video decoding frame corresponding to the single field image data, and the first indication parameter further indicates that the single field image data included in the first video decoding frame is Top field image data or bottom field image data;

The second indication parameter indicates the first video decoded frame and the first video decoded frame The order in which the homologous video decoded frames appear in the video stream.

With reference to the second aspect, in a second possible implementation manner of the second aspect, the first field coding indication includes a third indication parameter, a fourth indication parameter, and a second indication parameter;

The third indication parameter indicates that the first video decoding frame is a video decoding frame corresponding to single field image data;

The fourth indication parameter indicates that the single field image data included in the first video decoding frame is top field image data or bottom field image data;

The second indication parameter indicates an order of appearance of the homologous video decoding frame of the first video decoding frame and the first video decoding frame in the video code stream.

With reference to the second aspect or the first possible implementation of the second aspect or the second possible implementation of the second aspect, in a third possible implementation manner of the second aspect, A field encoding instruction blends the first image decoded data and the second image decoded data to obtain a blended image, including:

If the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame is in the video code stream, the second video decoding frame is present, and the second video decoding frame is in the And appearing in the first video decoding frame, and the decoded output order of the first image decoding data and the second image decoding data are adjacent to each other, and the first image decoding data and the The second image decoding data is blended to obtain a blended image;

or;

If the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame appears before the first video decoding frame in the video code stream, and the second video decoding frame is in the The video code stream appears before the first video decoding frame, and the decoded output order of the first image decoded data and the second image decoded data are adjacent to each other, and the first image decoded data and the The second image decoded data is blended to obtain a blended image.

In conjunction with the second aspect or the first possible implementation of the second aspect or the second possible implementation of the second aspect, in a fourth possible implementation of the second aspect,

The second video decoding frame includes a second field coding indication, the second field coding indication indicates that the second video decoding frame is a video decoding frame corresponding to single field image data, and the second field coding indication further indicates The single field image data included in the second video decoding frame is top field image data or bottom field image data, and the second field encoding indication further indicates the second video decoding frame and the second The order in which the homologous video decoded frames of the video decoded frame appear in the video bitstream;

And the blending the first image decoding data and the second image decoding data according to the first field encoding instruction to obtain a blending image, comprising: according to the first field encoding indication and the second field encoding indication And blending the first image decoded data and the second image decoded data to obtain a blended image.

With reference to the fourth possible implementation manner of the second aspect, in a fifth possible implementation manner of the second aspect, the first field coding indication and the second field coding indication are An image decoded data and the second image decoded data are blended to obtain a blended image, including:

If the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame is in the video code stream and then appears in the first video decoding frame, and the first field coding indication further indicates The single field image data included in the first video decoding frame is top field image data, and the second field encoding indication indicates that the homologous video decoding frame of the second video decoding frame precedes the video code stream. The second video decoding frame is generated, and the second field encoding indication further indicates that the single field image data included in the second video decoding frame is bottom field image data, and the second video decoding frame is in the video And appearing in the first video decoding frame, and the decoded output order of the first image decoding data and the second image decoding data are adjacent to each other, and the first image decoding data and the first The two image decoding data are blended to obtain a blended image;

or;

And if the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame appears before the first video decoding frame in the video code stream, and the first field coding indication further indicates The single field image data included in the first video decoding frame is top field image data, and the second field encoding indication indicates that the homologous video decoding frame of the second video decoding frame is in the video code stream. The second video decoding frame is generated, and the second field encoding indication further indicates that the single field image data included in the second video decoding frame is bottom field image data, and the second video decoding frame is in the video And appearing in the code stream before the first video decoding frame, and the decoded output order of the first image decoding data and the second image decoding data are adjacent to each other, and the first image decoding data and the first The two image decoding data are blended to obtain a blended image;

or;

If the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame is in the video code stream, the first video decoding frame is present, and the first field coding indication is further The single field image data included in the first video decoding frame is bottom field image data, and the second field encoding indication indicates that the homogenous video decoding frame of the second video decoding frame is first in the video code stream. Appearing in the second video decoding frame, and the second field encoding indication further indicates that the single field image data included in the second video decoding frame is top field image data, and the second video decoding frame is in the And appearing in the video code stream in the first video decoding frame, and the decoded output order of the first image decoding data and the second image decoding data are adjacent to each other, and the first image decoding data and the The second image decoded data is blended to obtain a blended image;

or;

And if the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame appears before the first video decoding frame in the video code stream, and the first field coding indication further indicates The single field image data included in the first video decoding frame is bottom field image data, and the second field encoding indication indicates that the homologous video decoding frame of the second video decoding frame is in the video code stream. The second video decoding frame is generated, and the second field encoding indication further indicates that the single field image data included in the second video decoding frame is top field image data, and the second video decoding frame is in the video And appearing in the code stream before the first video decoding frame, and the decoded output order of the first image decoding data and the second image decoding data are adjacent to each other, and the first image decoding data and the first The two image decoded data are blended to obtain a blended image.

In a third aspect, a video encoding apparatus includes:

An acquisition unit for acquiring an image;

a coding unit, configured to video encode the first field image data of the image to obtain a first video coding frame, and perform video coding on the second field image data of the image to obtain a second video coding frame;

a writing unit, configured to write the first video encoding frame and the second video encoding frame into a video code stream;

The first field image data is top field image data, and the second field image data is The bottom field image data, or the second field image data is top field image data, and the first field image data is bottom field image data.

In conjunction with the third aspect, in a first possible implementation of the third aspect,

With reference to the third aspect, in a second possible implementation manner of the third aspect, the first field coding indication includes a third indication parameter, a fourth indication parameter, and a second indication parameter;

The fourth indication parameter indicates that the single field image data included in the first video coding frame is top field image data or bottom field image data;

With reference to the third aspect or the first possible implementation manner of the third aspect or the second possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, the second video coding The frame includes a second field coding indication, the second field coding indication indicates that the second video coding frame is a video coding frame corresponding to single field image data, and the second field coding indication further indicates the second video coding frame The included single field image data is bottom field image data or top field image data, and the second field encoding indication further indicates that the second video encoded frame and the first video encoded frame appear in the video code stream The order of precedence.

In a fourth aspect, a video decoding apparatus may include:

a decoding unit, configured to perform video decoding on the first video decoding frame in the video code stream to obtain first image decoding data, and perform video decoding on the second video decoding frame in the video code stream to obtain second image decoding data. Wherein the first video decoding frame includes a first field coding indication, the first field coding indication indicating that the first video decoding frame is a video decoding frame corresponding to single field image data, and the first field coding indication Also indicating a single field image data included in the first video decoding frame Is top field image data or bottom field image data, and the first field encoding indication further indicates that the first video decoded frame and the homogenous video decoded frame of the first video decoded frame are in the video bitstream An order of appearance; wherein the first video decoded frame and the homogenous video decoded frame are obtained based on image data of different fields of the same image;

And a blending unit, configured to blend the first image decoded data and the second image decoded data according to the first field encoding instruction to obtain a blended image.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect,

The first field coding indication includes a third indication parameter, a fourth indication parameter, and a second indication parameter;

In conjunction with the fourth aspect, in a second possible implementation of the fourth aspect,

The second indication parameter indicates that a homogenous video decoding frame of the first video decoding frame appears before the first video decoding frame in the video code stream.

With reference to the fourth aspect or the first possible implementation manner of the fourth aspect or the second possible implementation manner of the fourth aspect, in a third possible implementation manner of the fourth aspect,

The aggregating unit is configured to: if the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame is in the video code stream, and then appears in the first video decoding frame, and The second video decoding frame is present in the video code stream after the first video decoding frame, and the decoded output order of the first image decoding data and the second image decoding data are adjacent to each other. The first image decoded data and the second image decoded data are blended to obtain a blended image;

or;

With reference to the fourth aspect or the first possible implementation manner of the fourth aspect or the second possible implementation manner of the fourth aspect, in a fourth possible implementation manner of the fourth aspect,

The second video decoding frame includes a second field coding indication, the second field coding indication indicates that the second video decoding frame is a video decoding frame corresponding to single field image data, and the second field coding indication further indicates The single field image data included in the second video decoding frame is top field image data or bottom field image data, and the second field encoding indication further indicates the same of the second video decoding frame and the second video decoding frame. The order in which the source video decoded frames appear in the video stream;

The aggregating unit is configured to perform the blending of the first image decoding data and the second image decoding data according to the first field encoding instruction and the second field encoding instruction to obtain a blending image.

In conjunction with the fourth possible implementation of the fourth aspect, in a fifth possible implementation manner of the fourth aspect,

The aggregating unit is configured to: if the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame is in the video code stream, and then appears in the first video decoding frame, and The first field coding indication further indicates that the single field image data included in the first video decoding frame is top field image data, and the second field coding indication indicates that the same video decoding frame of the second video decoding frame is The video code stream appears before the second video decoding frame, and the second field coding indication further indicates that the single field image data included in the second video decoding frame is bottom field image data, and the Two video decoding frames appear in the first video decoding frame in the video code stream, and the decoded output order of the first image decoding data and the second image decoding data are adjacent to each other, An image decoded data and the second image decoded data are blended to obtain a blended image;

or;

If the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame is The video code stream appears before the first video decoding frame, and the first field coding indication further indicates that the single field image data included in the first video decoding frame is top field image data, and the a second field coding indication indicating that a homogenous video decoding frame of the second video decoding frame is present in the video code stream after the second video decoding frame, and the second field coding indication further indicates the second The single field image data included in the video decoding frame is bottom field image data, and the second video decoding frame appears in the video code stream before the first video decoding frame, and the first image decoding data and The decoded output of the second image decoded data is sequentially adjacent, and the first image decoded data and the second image decoded data are blended to obtain a blended image;

or;

If the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame is in the video code stream and then appears in the first video decoding frame, and the first field coding indication further indicates The single field image data included in the first video decoding frame is bottom field image data, and the second field encoding indication indicates that the homologous video decoding frame of the second video decoding frame precedes the video code stream. The second video decoding frame is generated, and the second field encoding indication further indicates that the single field image data included in the second video decoding frame is top field image data, and the second video decoding frame is in the video And appearing in the first video decoding frame, and the decoded output order of the first image decoding data and the second image decoding data are adjacent to each other, and the first image decoding data and the first The two image decoding data are blended to obtain a blended image;

or;

It can be seen that, in some video coding schemes of the present invention, the first field image data and the second field image data of the image are separately video encoded to obtain a first video encoded frame and a second video encoded frame; A video encoded frame and a second video encoded frame are written to the video stream. The first field coding instruction indicates that the first video coding frame is a video coding frame corresponding to the single field image data, and the first field coding indication further indicates the foregoing. The single field image data included in a video encoding frame is top field image data or bottom field image data, and the first field encoding indication further indicates that the first video encoding frame and the second video encoding frame appear in the video stream. The order of precedence. Wherein, because the first video coding frame is explicitly indicated, the sequence of the homologous video coding frames obtained from the image data of different fields of the same image appears in the video code stream, which is beneficial for the video decoding device to know clearly based on the same The sequence of the homologous video coding frames obtained by the image data of different fields of the image appears in the video code stream, thereby facilitating the video decoding device to correctly image the different field image data of the same image obtained by decoding.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

1 is a schematic flowchart of a video encoding method according to an embodiment of the present invention;

2 is a schematic flowchart of a video decoding method according to an embodiment of the present invention;

3 is a schematic diagram of a video encoding apparatus according to an embodiment of the present invention;

4 is a schematic diagram of a video decoding apparatus according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of another video encoding apparatus according to an embodiment of the present invention; FIG.

FIG. 6 is a schematic diagram of another video encoding apparatus according to an embodiment of the present invention; FIG.

FIG. 7 is a schematic diagram of another video decoding apparatus according to an embodiment of the present invention; FIG.

FIG. 8 is a schematic diagram of another video decoding apparatus according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is an embodiment of the invention, but not all of the embodiments. Based on the embodiments of the present invention, those of ordinary skill in the art obtain the following without creative efforts. All other embodiments are intended to fall within the scope of the invention.

The details are described below separately.

The terms "first", "second", "third", "fourth" and the like in the specification and claims of the present invention and the above drawings are used to distinguish different objects, and are not intended to describe a specific order. Furthermore, the terms "comprises" and "comprising" and "comprising" are intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or device that comprises a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units not listed, or alternatively Other steps or units inherent to these processes, methods, products or equipment.

The details are described below separately.

The video encoding method provided by the embodiment of the present invention is described. The main body of the video encoding method provided by the embodiment of the present invention is a video encoding device, where the video encoding device can be any device that needs to output and store video, such as a mobile phone or a notebook. Computers, tablets, personal computers and other equipment.

An embodiment of the video encoding method of the present invention, wherein a video encoding method comprises: acquiring an image; performing video encoding on the first field image data of the image to obtain a first video encoding frame; and second field image of the image Data is video-encoded to obtain a second video-coded frame; the first video-coded frame and the second video-coded frame are written into a video code stream; wherein the first video-coded frame includes a first field coding indicator, the first The field coding indication indicates that the first video coding frame is a video coding frame corresponding to the single field image data, and the first field coding indication further indicates that the single field image data included in the first video coding frame is a top field image data or a bottom field image. Data, the first field coding indication further indicates a sequence in which the first video coding frame and the second video coding frame appear in the video code stream; wherein the first field image data is top field image data, and The second field image data is bottom field image data, or the second field image data is top field image data, and the above A bottom field image data as image data.

Referring to FIG. 1, FIG. 1 is a schematic flowchart diagram of a video encoding method according to an embodiment of the present invention. As shown in FIG. 1, a video encoding method provided by an embodiment of the present invention may include the following content:

101. Acquire an image.

102. Perform video coding on the first field image data of the foregoing image to obtain a first video coding frame.

103. Perform video coding on the second field image data of the foregoing image to obtain a second video coding. frame.

The first field image data may be top field image data (ie, the first field image data of the image may be top field image data of the image), and the second field image data may be bottom field image data (ie, The second field image data of the above image may be the bottom field image data of the above image). Or the second field image data may be top field image data (ie, the second field image data of the image may be top field image data of the image), and the first field image data may be bottom field image data (ie, The first field image data of the above image may be the bottom field image data of the above image).

There is no necessary execution sequence between step 102 and step 103. For example, step 202 may be performed before or after step 103, or

steps

102 and 103 may be performed synchronously, or

steps

102 and 103 may be interspersed. carried out.

104. Write the first video coding frame and the second video coding frame to the video code stream.

The first video coding frame includes a first field coding indication (the first field coding indication may be included, for example, in a frame header and/or other location of the first video coding frame), and the first field coding indication indicates the first The video coding frame is a video coding frame corresponding to single field image data. That is, the first field coding indication may indicate that the first video coding frame includes one field of image data of one image, and does not include two fields of image data of one image.

The first field coding indication further indicates that the single field image data included in the first video coding frame is top field image data or bottom field image data. For example, if it is assumed that video encoding the top field image data of the image to obtain the first video encoding frame, the first field encoding indication indicates that the single field image data included in the first video encoding frame is top field image data, assuming The video encoding the bottom field image data of the image to obtain the first video encoding frame, the first field encoding instruction indicating that the single field image data included in the first video encoding frame is the bottom field image data.

The first field coding indication further indicates a sequence in which the first video coding frame and the second video coding frame appear in the video code stream. For example, if the first video coding frame in the video code stream appears before the second video coding frame, the first field coding indication indicates that the first video coding frame and the second video coding frame are in the video code. The order of occurrence in the stream is that the first video coding frame appears before the second video coding frame. On the other hand, if the first video encoding frame in the video stream is followed by the second video encoding frame, the first field encoding indication indicates that the first video encoding frame and the second video encoding frame are in the video code. The sequence of occurrences in the stream is the first video encoding frame and the second video encoding frame Now.

It can be seen that, in the video coding scheme of this embodiment, the first field image data and the second field image data of the image are separately video-encoded to obtain a first video-coded frame and a second video-coded frame; The frame and the second video encoded frame are written to the video stream. The first field coding instruction indicates that the first video coding frame is a video coding frame corresponding to the single field image data, and the first field coding indication further indicates the foregoing. The single field image data included in a video encoding frame is top field image data or bottom field image data, and the first field encoding indication further indicates that the first video encoding frame and the second video encoding frame appear in the video stream. The order of precedence. Wherein, because the first video coding frame is explicitly indicated, the sequence of the homologous video coding frames obtained from the image data of different fields of the same image appears in the video code stream, which is beneficial for the video decoding device to know clearly based on the same The sequence of the homologous video coding frames obtained by the image data of different fields of the image appears in the video code stream, thereby facilitating the video decoding device to correctly image the different field image data of the same image obtained by decoding.

Wherein, the top field image data and the bottom field image data of the image are respectively video-encoded to obtain two video coded frames which are mutually homologous video coded frames, because the field image data included in the two video coded frames are from the same image. E.g. The first video coding frame is a homogenous video coding frame of the second video coding frame. Similarly, the second video coding frame is also a homogenous video coding frame of the first video coding frame. Similarly, the top field image data and the bottom field image data of an image are "homologous field image data" with each other because the two field image data are from the same image. E.g. The top field image data of the image is the same-field image data of the bottom field image data of the image. Similarly, the bottom field image data of the image is the homologous field image data of the top field image data of the image.

In some possible implementation manners of the present invention, the first field coding indication may include a first indication parameter and a second indication parameter. The first indication parameter indicates that the first video encoding frame is a video encoding frame corresponding to single field image data (ie, the first indication parameter may indicate that the first video encoding frame includes a single field image data of an image, and The first indicator parameter further includes the single field image data included in the first video encoding frame as the top field image data or the bottom field image data (for example, assuming that the image is the same for the two fields of image data) The top field image data is video-encoded to obtain a first video-coded frame, and the first indication parameter indicates that the single-field image data included in the first video-coded frame is top-field image data, and the bottom field image data of the image is assumed to be performed. Video coding to obtain a first video coding frame, where the first indication parameter indicates the first video coding frame The included single field image data is bottom field image data). The second indication parameter indicates a sequence in which the first video coding frame and the second video coding frame appear in the video code stream. For example, if the first video coding frame in the video code stream appears before the second video coding frame, the second indication parameter indicates that the first video coding frame and the second video coding frame are in the video code stream. The order of occurrence is that the first video coding frame appears before the second video coding frame. On the other hand, if the first video encoding frame in the video stream is followed by the second video encoding frame, the second indication parameter may indicate that the first video encoding frame and the second video encoding frame are in the video stream. The sequence of occurrences occurs after the first video encoding frame is followed by the second video encoding frame.

In other possible implementation manners of the present invention, the first field coding indication may include, for example, a third indication parameter, a fourth indication parameter, and a second indication parameter. The third indication parameter may indicate that the first video coding frame is a video coding frame corresponding to single field image data (ie, the third indication parameter may indicate that the first video coding frame includes a single field image data of an image, Two image data without an image). The fourth indication parameter may indicate that the single field image data included in the first video encoding frame is top field image data or bottom field image data (eg, it is assumed that video encoding the top field image data of the image to obtain the first video) Encoding the frame, the fourth indication parameter indicating that the single field image data included in the first video encoding frame is top field image data, and assuming that the bottom field image data of the image is video encoded to obtain the first video encoding frame, The four indication parameter indicates that the single field image data included in the first video encoding frame is bottom field image data). The second indication parameter indicates a sequence in which the first video coding frame and the second video coding frame appear in the video code stream.

The first indication parameter may include, for example, at least two bits, wherein the first indication parameter may be, for example, a parameter progressive_frame indicator bit or a picture_structure indicator bit or other extension indicator bit. The second indication parameter includes, for example, at least 1 bit. The second indication parameter may be, for example, a top field first (top_field_first) indicator bit or other extended indicator bit or the like.

Optionally, the foregoing second video coding frame may include a second field coding indication (the second field coding indication may be included, for example, in a frame header and/or other locations of the second video coding frame), where the second field coding indication may indicate The second video encoding frame is a video encoding frame corresponding to the single field image data, that is, the second field encoding indication may indicate that the second video encoding frame includes one image of the single field image data, Does not contain two fields of image data for one image.

Optionally, the second field coding indication may further indicate that the single field image data included in the second video coding frame is bottom field image data or top field image data. For example, if it is a video encoding of the top field image data of the image to obtain a second video encoding frame, the second field encoding indication may indicate that the single field image data included in the second video encoding frame is top field image data. Assuming that the bottom field image data of the image is video encoded to obtain a second video encoded frame, the second field encoding indication indicates that the single field image data included in the second video encoding frame is bottom field image data.

Optionally, the second field coding indication may further indicate a sequence in which the second video coding frame and the first video coding frame appear in the video code stream. For example, if the first video coding frame in the video code stream appears before the second video coding frame, the second field coding indication may indicate that the first video coding frame and the second video coding frame are in the video. The order of occurrence in the code stream is that the first video coding frame appears before the second video coding frame. On the other hand, if the first video encoding frame in the video stream is followed by the second video encoding frame, the second field encoding indication may indicate that the first video encoding frame and the second video encoding frame are in the video. The sequence of occurrences in the code stream is the first video coded frame and the second video coded frame.

In some possible implementation manners of the present invention, the second field coding indication may include a fifth indication parameter and a fifth indication parameter. The fifth indication parameter indicates that the second video coding frame is a video coding frame corresponding to single field image data (that is, the fifth indication parameter may indicate that the second video coding frame includes a single field image data of an image, and The second indication parameter does not include an image, and the fifth indication parameter further indicates that the single field image data included in the second video coding frame is top field image data or bottom field image data (for example, assuming that the image is The top field image data is video-encoded to obtain a second video-coded frame, and the fifth indication parameter indicates that the single-field image data included in the second video-coded frame is top-field image data, and the bottom field image data of the image is assumed to be performed. Video encoding to obtain a second video encoding frame, the fifth indication parameter indicating that the single field image data included in the second video encoding frame is bottom field image data). The sixth indication parameter indicates a sequence in which the second video coding frame and the second video coding frame appear in the video code stream. For example, if the first video coding frame in the video code stream appears before the second video coding frame, the sixth indication parameter indicates that the first video coding frame and the second video coding frame are in the video code stream. The order of occurrence is that the first video encoding frame is preceded by the second video The encoded frame appears. On the other hand, if the first video encoding frame in the video stream is followed by the second video encoding frame, the sixth indication parameter may indicate that the first video encoding frame and the second video encoding frame are in the video stream. The sequence of occurrences occurs after the first video encoding frame is followed by the second video encoding frame.

In other possible implementation manners of the present invention, the foregoing second field coding indication may include, for example, a seventh indication parameter, an eighth indication parameter, and a sixth indication parameter. The seventh indication parameter may indicate that the second video coding frame is a video coding frame corresponding to single field image data (that is, the seventh indication parameter may indicate that the second video coding frame includes a single field image data of an image, Two image data without an image). The eighth indication parameter may indicate that the single field image data included in the second video coding frame is top field image data or bottom field image data (eg, assuming that the top field image data of the image is video encoded to obtain a second video) Encoding the frame, the eighth indication parameter indicating that the single field image data included in the second video encoding frame is top field image data, and assuming that the bottom field image data of the image is video encoded to obtain a second video encoding frame, The eight indication parameter indicates that the single field image data included in the second video encoding frame is bottom field image data). The sixth indication parameter indicates a sequence in which the second video coding frame and the second video coding frame appear in the video code stream.

The fifth indication parameter may include, for example, at least two bits, wherein the fifth indication parameter may be, for example, a parameter progressive_frame indication bit or a picture structure (picture_structure) indication bit or other extended indication bit. The sixth indication parameter includes, for example, at least 1 bit. The sixth indication parameter may be, for example, a top field first (top_field_first) indicator bit or other extended indicator bit or the like.

It can be understood that since the second field coding indication and the first video coding frame indicate that the second video coding frame and the first video coding frame appear in the video code stream in the same order, the video decoding device is also Determining whether there is a dropped frame or a bit error condition according to whether the second video encoding frame and the first video encoding frame indicate the order in which the first video encoding frame and the first video encoding frame appear in the video code stream are the same. Wait. Of course, since the second video coding frame and the first video coding frame indicated by the second field coding indication and the first video coding frame are in the same order in the video code stream, the second field coding indication is Can also be omitted.

The so-called "sequence of video coding frames appearing in the video code stream" can be understood as the order in which the video coded frames are encoded, for example, the first video coding frame precedes the second video coding. The frame appears in the code stream, which can be understood as the encoding of the first video encoded frame prior to encoding to obtain the second video encoded frame. For another example, the first video encoding frame and the second video encoding frame appear in the code stream, which can be understood as encoding the second video encoding frame after encoding the first video encoding frame.

Here, the "output sequence after decoding of decoded image data" can be understood as the display order of decoded image data after decoding and sorting of the video decoded frame corresponding to the decoded image data. The order in which the first video decoded frame and the second video decoded frame appear in the video code stream may be different from the decoded output order of the decoded image data corresponding to the first video decoded frame and the decoded image data corresponding to the second video decoded frame. .

Wherein, for the video decoding device, the video encoded frame in the video code stream may also be referred to as a video decoded frame.

The video decoding method provided by the embodiment of the present invention is described below. The execution body of the video decoding method provided by the embodiment of the present invention is a video decoding device, where the video decoding device may be any device that needs to output and play video, such as a mobile phone or a notebook. Computers, tablets, personal computers and other equipment.

Another embodiment of the video decoding method of the present invention, wherein a video decoding method comprises: performing video decoding on a first video decoding frame in a video code stream to obtain first image decoding data; The second video decoding frame is subjected to video decoding to obtain second image decoding data, where the first video decoding frame includes a first field encoding indication, and the first field encoding indication indicates that the first video decoding frame is corresponding to single field image data. The video decoding frame, and the first field encoding indication further indicates that the single field image data included in the first video decoding frame is top field image data or bottom field image data, and the first field encoding indication further indicates the first video decoding. An order of appearance of the frame and the homogenous video decoding frame of the first video decoding frame in the video stream; wherein the first video decoding frame and the homologous video decoding frame are obtained based on image data of different fields of the same image; Blending the first image decoded data and the second image decoded data according to the first field encoding instruction Blend images.

Referring to FIG. 2, FIG. 2 is a schematic flowchart diagram of a video decoding method according to another embodiment of the present invention. As shown in FIG. 2, a video decoding method provided by another embodiment of the present invention may include the following content:

201. Perform video decoding on the first video decoded frame in the video code stream to obtain first image decoded data.

202. Perform video decoding on the second video decoding frame in the video stream to obtain second image decoding data.

The inevitable execution sequence is not used between step 201 and step 202. For example, step 201 may be performed before or after step 202, or

steps

201 and 202 may be performed synchronously, or step 201 and step 202 may be interspersed. carried out.

The first video decoding frame includes a first field coding indication, where the first field coding indication indicates that the first video decoding frame is a video decoding frame corresponding to single field image data, and the first field coding indication further indicates the foregoing The single field image data included in a video decoding frame is top field image data or bottom field image data, and the first field encoding indication further indicates that the first video decoding frame and the homologous video decoding frame of the first video decoding frame are An order of appearance in the video stream; wherein the first video decoded frame and the homologous video decoded frame are obtained based on image data of different fields of the same image.

203. The first image decoding data and the second image decoding data are blended according to the first field coding instruction to obtain a blend image.

The first video decoding frame and the homologous video decoding frame of the first video decoding frame are obtained based on image data of different fields of the same image. That is, two video decoded frames are obtained as "homo homologous video decoding frames" based on image data of different fields of the same image. Similarly, the top field image data and the bottom field image data of an image are "homologous field image data" with each other because the two field image data are from the same image. E.g. The top field image data of a certain image is the homologous field image data of the bottom field image data of the image. Similarly, the bottom field image data of a certain image is the homologous field image data of the top field image data of the image.

It can be seen that, in the video decoding scheme of this embodiment, after the first video decoding frame and the second video decoding frame in the video code stream are video-decoded to obtain the first image decoding data and the second image decoding data, And an indication of the first field coding indication included in the first video decoding frame, and an appearance order of the second video decoding frame and the first video decoding frame in the video code stream, and the first image decoding data and the second The decoded output order of the image decoded data determines whether the first image decoded data and the second image decoded data are blended to obtain a blended image. Wherein, since the first video decoding frame explicitly indicates the sequence in which the first video decoding frame and the homologous video decoding frame appear in the video code stream, this is advantageous for the video decoding device to explicitly know different fields based on the same image. The homologous video decoding frame obtained from the image data appears first in the video code stream The latter sequence, in turn, facilitates the video decoding device to correctly image the different field image data of the same image obtained by decoding.

In some possible implementation manners of the present disclosure, the first field coding indication may include a first indication parameter and a second indication parameter, where the first indication parameter indication may indicate that the first video decoding frame is a single field image data corresponding to Video decoding frame (ie, the first indication parameter may indicate that the first video decoding frame includes one field of image data of one image, and does not include two fields of image data of one image), and the first indication parameter may also be Instructing the single video image data included in the first video decoding frame to be top field image data or bottom field image data (eg, assuming that the single field image data included in the first video decoding frame is top field image data, the first indicator parameter And indicating that the single field image data included in the first video decoding frame is top field image data, and the single field image data included in the first video decoding frame is bottom field image data, and the first indication parameter indicates that the first video decoding frame includes The single field image data is the bottom field image data). The second indication parameter may indicate a sequence of occurrence of the first video decoding frame and the homologous video decoding frame of the first video decoding frame in the video code stream.

In another possible implementation manner of the present invention, the first field coding indication may include a third indication parameter, a fourth indication parameter, and a second indication parameter, where the third indication parameter indicates that the first video decoding frame is a single The video decoded frame corresponding to the field image data. The fourth indication parameter indicates that the single field image data included in the first video decoding frame is top field image data or bottom field image data (for example, assuming that the single field image data included in the first video decoding frame is top field image data, The fourth indication parameter indicates that the single field image data included in the first video decoding frame is top field image data, and the single field image data included in the first video decoding frame is bottom field image data, and the fourth indication parameter indicates the foregoing The single field image data contained in a video decoding frame is bottom field image data). The second indication parameter may indicate a sequence of occurrence of the first video decoding frame and the homologous video decoding frame of the first video decoding frame in the video code stream.

In some possible implementation manners of the present invention, the foregoing And combining the image decoding data and the second image decoding data to obtain the blending image, the method may include: if the first field encoding instruction indicates that the homologous video decoding frame of the first video decoding frame is in the video stream, a video decoding frame is present, and the second video decoding frame is present in the first video decoding frame after the video stream, and the decoded output sequence of the first image decoding data and the second image decoding data are adjacent to each other. Blending the first image decoded data and the second image decoded data to obtain a blended image;

or;

And if the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame appears before the first video decoding frame in the video code stream, and the second video decoding frame is first in the video code stream. Appearing in the first video decoding frame, and the first image decoding data and the second image decoding data are sequentially outputted, and the first image decoding data and the second image decoding data are blended to obtain a blend image. .

In another possible implementation manner of the present invention, the second video decoding frame may include a second field coding indication, where the second field coding indication indicates that the second video decoding frame is a video decoding frame corresponding to the single field image data. And the second field coding indication further indicates that the single field image data included in the second video decoding frame is top field image data or bottom field image data, and the second field coding indication further indicates the second video decoding frame and the foregoing The order in which the homologous video decoded frames of the two video decoded frames appear in the video stream;

Performing the blending of the first image decoding data and the second image decoding data according to the first field encoding instruction to obtain a blending image, comprising: first, according to the first field encoding instruction and the second field encoding instruction, the first image The decoded data and the second image decoded data are blended to obtain a blended image.

For example, according to the first field coding instruction and the second field coding instruction, the first image decoding data and the second image decoding data are blended to obtain a blend image, including:

If the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame is in the video code stream, the first video decoding frame is further generated, and the first field coding indication further indicates the first video decoding. The single field image data included in the frame is top field image data, and the second field encoding indication indicates that the homologous video decoding frame of the second video decoding frame appears before the second video decoding frame in the video code stream, and The second field coding indication further indicates that the single field image data included in the second video decoding frame is bottom field image data, and the second video decoding frame is in the foregoing view. And appearing in the first video decoding frame, and the first image decoding data and the second image decoding data are sequentially adjacent to the decoded output sequence, and the first image decoding data and the second image decoding data are Blending to obtain a blended image;

or;

If the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame appears before the first video decoding frame in the video code stream, and the first field coding indication further indicates the first video decoding. The single field image data included in the frame is top field image data, and the second field coding indication indicates that the homologous video decoding frame of the second video decoding frame is present in the video code stream and then appears in the second video decoding frame, and The second field coding indication further indicates that the single field image data included in the second video decoding frame is bottom field image data, and the second video decoding frame appears in the video code stream before the first video decoding frame, and The first image decoded data and the second image decoded data are sequentially adjacent to each other, and the first image decoded data and the second image decoded data are blended to obtain a blended image;

or;

If the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame is in the video code stream, the first video decoding frame is further generated, and the first field coding indication further indicates the first video decoding. The single field image data included in the frame is bottom field image data, and the second field encoding indication indicates that the homologous video decoding frame of the second video decoding frame appears before the second video decoding frame in the video code stream, and The second field coding indication further indicates that the single field image data included in the second video decoding frame is top field image data, and the second video decoding frame is in the video code stream and then appears in the first video decoding frame, and The first image decoded data and the second image decoded data are sequentially adjacent to each other, and the first image decoded data and the second image decoded data are blended to obtain a blended image;

or;

If the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame appears before the first video decoding frame in the video code stream, and the first field coding indication further indicates the first video decoding. The single field image data included in the frame is bottom field image data, and the second field coding indication indicates that the homologous video decoding frame of the second video decoding frame is in the video code stream and then appears in the second video decoding frame, and The second field coding indication further indicates that the single field image data included in the second video decoding frame is top field image data, and the second video decoding frame is in the foregoing view. And generating, in the frequency code stream, the first video decoding frame, and the first image decoding data and the second image decoding data are sequentially outputted, and the first image decoding data and the second image decoding data are Blend to get a blended image.

In some possible implementation manners of the present disclosure, the foregoing second field coding indication may include a fifth indication parameter and a sixth indication parameter, where the fifth indication parameter indication may indicate that the second video decoding frame is a single field image data corresponding to Video decoding frame (ie, the fifth indication parameter may indicate that the second video decoding frame includes one field of image data of one image, and does not include two fields of image data of one image), and the fifth indication parameter may also be Instructing the single video image data included in the second video decoding frame to be top field image data or bottom field image data (for example, assuming that the single field image data included in the second video decoding frame is top field image data, the fifth indicator parameter And indicating that the single field image data included in the second video decoding frame is top field image data, and the single field image data included in the second video decoding frame is bottom field image data, and the fifth indication parameter indicates that the second video decoding frame includes The single field image data is the bottom field image data). The sixth indication parameter may indicate an order of appearance of the homologous video decoding frame of the second video decoding frame and the second video decoding frame in the video code stream.

In another possible implementation manner of the present invention, the foregoing second field coding indication may include a seventh indication parameter, an eighth indication parameter, and a sixth indication parameter, where the seventh indication parameter indicates that the second video decoding frame is a single The video decoded frame corresponding to the field image data. The eighth indication parameter indicates that the single field image data included in the second video decoding frame is top field image data or bottom field image data (for example, assuming that the single field image data included in the second video decoding frame is top field image data, The eighth indication parameter indicates that the single field image data included in the second video decoding frame is top field image data, and if the single field image data included in the second video decoding frame is bottom field image data, the eighth indication parameter indicates the above. The single field image data included in the second video decoding frame is bottom field image data). The sixth indication parameter may indicate an order of appearance of the homologous video decoding frame of the second video decoding frame and the second video decoding frame in the video code stream.

Wherein, the blending the first image decoded data and the second image decoded data to obtain a blended image may include, for example, if the first image decoded data is top field image decoding data, and the second image decoded data is bottom field image decoding. The data uses the first image decoded data as the top field image data of the blended image and the second image decoded data as the bottom field image data of the blended image. Alternatively, the blending the first image decoded data and the second image decoded data to obtain the blended image may include: if the second image decoded data is top field image decoding data, the first image decoded data is bottom field image decoding data, The second image decoded data is used as the top field image data of the blended image, and the first image decoded data is used as the bottom field image data of the blended image.

To facilitate a better understanding and implementation of the foregoing technical solutions of the embodiments of the present invention, the following is exemplified by some specific application scenarios.

Some embodiments of the present invention facilitate the implementation of more flexible field codec by extending the meaning of the field coding syntax elements defined by the standard protocol.

For example, the picture structure (picture_structure) indicates a bit: when the current picture is an interlaced picture, indicating that the current picture is encoded in a line-by-line manner or interlaced.

For example, when the value of the picture_structure indication bit is 0, it can indicate that two fields of image data appear sequentially, that is, the current image is encoded in an interlaced manner, and one field of image data is first encoded or decoded to re-encode or decode another field of image data; when picture_structure When the value of the indication bit is 1, it can indicate that the two fields of the current image are blended, that is, the current image is encoded or decoded in a row-by-row manner, that is, the encoding or decoding does not intentionally distinguish the two field image data from the top field image data. Still the bottom field image data.

For example, the meaning of the progressive_frame indicator bit can be extended. The progressive_frame indicator bit in the standard protocol is only used to indicate that one video frame contains progressive scan image data or contains interlaced image data. Some embodiments of the present invention extend the indication meaning of the progressive_frame indicator bit. For example, the progressive_frame indicator bit may indicate that a video frame in the video stream includes progressive image data or contains interlaced image data, and may also indicate that the video frame includes a single field. In the case of image data, the single field image data is indicated as top field image data or bottom field image data of the image.

The specific definition of the progressive_frame indicator bit can be as follows:

For example, when the value of the progressive_frame indicator bit is 0, the two image data included in the video frame may be indicated as field image data from different time instants, that is, the image is an interlaced image. at this time The video frame may be encoded/decoded in a progressive manner (eg, the picture_structure indicator bit takes a value of 1) or may be encoded/decoded in an interlaced manner (the picture_structure indicator bit takes a value of 0).

When the value of the progressive_frame indicator bit is 1, the two image data of the image may be indicated to be blended, that is, the current image is encoded or decoded in a row-by-row manner, that is, two fields of image data that are not intentionally distinguished when encoding or decoding are top. The field image data is also the bottom field image data. At this time, the video frame is encoded/decoded in a line-by-line manner.

When the value of the progressive_frame indicator bit is 2, it may be indicated that the video frame contains single field image data and does not include two fields of image data, and the single field image data included in the video frame is top field image data.

When the value of the progressive_frame indicator bit is 3, the video frame may be included to include single-field image data without including two fields of image data, and the single-field image data included in the video frame is bottom field image data.

It can be understood that since the progressive_frame indicator bit after the extended meaning has four possible values, the progressive_frame indicator bit contains at least two bits. The progressive_frame indicator can look at a specific implementation of the first indication parameter in the above embodiment.

In the extension of the progressive_frame indicator bit, when the progressive_frame indicator bit takes a value of 2 or 3, one video frame contains single-field image data and does not include two fields of image data, so there is no need to indicate the video frame by the picture_structure indicator bit at this time. The codec mode of the two fields of image data, therefore, the value of the picture_structure indicator bit is set to a fixed value, for example, it can be fixed to 1 or 0.

It can be seen that by extending the meaning of the syntax element progressive_frame indicating bit, it is advantageous to effectively support a video frame to be separately coded in a single field manner, thereby facilitating the simplification of the complexity of encoding data management and reference frame management in the field coding.

In addition, the meaning of the bit element top_field_first may be extended, and the top_field_first indicator bit may be used to indicate the order in which a video frame and a homologous video frame of the video frame appear in the video stream. The specific definition of the top_field_first indicator bit can be as follows:

For example, when the value of the top_field_first indication bit is 1, it may indicate that the top field image data in the image corresponding to the field image data appears in the video code stream before the bottom field image data, that is, the video frame and the video frame are the same. The order in which video frames appear in the video stream is that the video frame containing the bottom field image data precedes the homologous video frame of the video frame in the video stream (ie, the view containing the top field image data) Frequency frame) appears.

For example, when the value of the top_field_first indication bit is 0, it may be indicated that the top field image data in the corresponding image data of the field image appears in the video code stream and then appears in the bottom field image data, that is, the video frame and the homologous video of the video frame. The order in which the frames appear in the video stream is that the video frame containing the top field image data appears in the video stream prior to the homologous video frame of the video frame (ie, the video frame containing the bottom field image data).

Wherein, by extending the indication meaning of the syntax element top_field_first indicating bit, it is advantageous for the video decoding device to know clearly how each field image data of the decoded output and the adjacent field image data are blended to obtain a blended image. The top_field_first indication bit can be seen in a specific implementation of the second indication parameter in the above embodiment.

The following uses some specific examples to illustrate some ways of using the syntax element progressive_frame indicator bit and the top_field_first indicator bit.

The following is an example of combining video coding methods.

The embodiment of the present invention further provides a video encoding method, which may include: acquiring an image P1, and performing video encoding on the top field image data of the image P1 to obtain a first video encoding frame. The bottom field image data of the image P1 described above is video encoded to obtain a second video encoded frame. The first video encoded frame and the second video encoded frame are written to the video bitstream. The first video coding frame includes a first field coding indication (the first field coding indication may be included, for example, in a frame header and/or other positions of the first video coding frame), where the first field coding indication includes a progressive_frame indicator bit and The top_field_first indicator bit, wherein the progressive_frame indicator bit has a value of 2 (ie, the progressive_frame indicator bit indicates that the first video coded frame is a video coded frame corresponding to single field image data, and may also indicate that the first video coded frame is included. The single field image data is the top field image data). The top_field_first indicates that the bit has a value of 1 (ie, the top_field_first indicator bit indicates that the first video encoded frame appears in the video bitstream before the second video encoded frame). The second video coding frame includes a second field coding indication (the second field coding indication may be included, for example, in a frame header and/or other location of the second video coding frame), and the second field coding indication includes a progressive_frame indicator bit and The top_field_first indicator bit, wherein the second field coding indication includes a value of 3 for the progressive_frame indicator bit (ie, the progressive field_frame indicated by the second field coding indication indicates that the second video coding frame is a video coding frame corresponding to single field image data. And the second field coding indication includes a progressive_frame indicator bit, which may also indicate the single field image data included in the second video coding frame. For bottom field image data). The second field coding indication includes a value of 1 for the top_field_first indication bit (ie, the top_field_first indication bit indicates that the first video coding frame appears in the video bitstream before the second video coding frame).

The embodiment of the present invention further provides a video encoding method, which may include: acquiring an image P2, and performing video encoding on the top field image data of the image P2 to obtain a first video encoding frame. The bottom field image data of the image P2 described above is video encoded to obtain a second video encoded frame. The first video encoded frame and the second video encoded frame are written to the video bitstream. The first video coding frame includes a first field coding indication (the first field coding indication may be included, for example, in a frame header and/or other positions of the first video coding frame), where the first field coding indication includes a progressive_frame indicator bit and The top_field_first indicator bit, wherein the progressive_frame indicator bit has a value of 2 (ie, the progressive_frame indicator bit indicates that the first video coded frame is a video coded frame corresponding to single field image data, and may also indicate that the first video coded frame is included. The single field image data is the top field image data). The top_field_first indicates that the bit has a value of 0 (ie, the top_field_first indicator bit indicates that the second video encoded frame appears after the first video encoded frame in the video bitstream). The second video coding frame includes a second field coding indication (the second field coding indication may be included, for example, in a frame header and/or other location of the second video coding frame), and the second field coding indication includes a progressive_frame indicator bit and The top_field_first indicator bit, wherein the second field coding indication includes a value of 3 for the progressive_frame indicator bit (ie, the progressive field_frame indicated by the second field coding indication indicates that the second video coding frame is a video coding frame corresponding to single field image data. And the second field coding indication includes a progressive_frame indicator bit, which may also indicate that the single field image data included in the second video coding frame is bottom field image data). The second field coding indication includes a value of 0 for the top_field_first indication bit (ie, the top_field_first indication bit indicates that the second video coding frame appears after the first video coding frame in the video bitstream).

It can be seen that, in the above several example video coding schemes, the top field image data and the bottom field image data of the image are respectively video-encoded to obtain a first video-coded frame and a second video-coded frame; The second video encoded frame is written to the video stream. The first video coding frame includes a progressive_frame indicator bit and a top_field_first indicator bit, and the progressive_frame indicator bit indicates that the first video coding frame is a video coding frame corresponding to single field image data, And the progressive_frame indicator bit further indicates that the single field image data included in the first video encoding frame is top field image data, and the top_field_first indicator bit indicates The sequence of occurrence of the first video encoding frame and the second video encoding frame in the video stream. Since the first video coding frame is explicitly indicated, the sequence of the homologous video coding frames obtained from the image data of different fields of the same image appears in the video code stream, which is advantageous for the video decoding device to know clearly based on the same image. The order in which the homologous video coding frames obtained by the image data of different fields appear in the video code stream further facilitates the video decoding device to correctly image the different field image data of the same image obtained by decoding.

The following is an example of combining video decoding methods.

Assume that the video decoded frame in the video stream is decoded, and the field image data sequence output after decoding is as follows: bot1, top2, bot3, top4, bot5.

Among them, bot represents bottom field image data, and top represents top field image data. The numbers following the bot and top (ie 1, 2, 3, 4, 5, ...) indicate the output order after the code stream is decoded. The value of the progressive_frame indicator bit of the video decoding frame in the video code stream is 2 (ie, the video decoding frame contains single field image data and the single field image data is top field image data) or 3 (ie, the video decoding frame contains a single Field image data and the single field image data is bottom field image data). Also, the top_field_first indication bit of all coded frames has a value of one. In this example, since the value of the top_field_first indication bit of all the encoded frames is 1, the image corresponding to all the field image data in the code stream is the top field image data before the bottom field image data in the video code stream. appear. Therefore, according to the above code stream structure, bot1 appears before top2, because the top_field_first indicator bit indicates that the top field image data of the image always appears in the video stream before the bottom field image data, so bot1 and top2 cannot After the video decoding device blends into a blending image, bot3 appears in the code stream in top2, and the decoded output order of bot3 and top2 are adjacent to each other. Therefore, top2 and bot3 can be blended into one image. Similarly, top4 and bot5 Blend into an image. Others can be deduced by analogy.

Similarly, assuming that the top_field_first indicator bit of all video decoding frames in the above code stream structure has a value of 0, the video decoding device can blend bot1 and top2 into one image. Similarly, bot3 and top4 can be blended into one image. Others can be deduced by analogy.

In addition, according to the combination of the progressive_frame and the top_field_first syntax elements, the error resistance of the video decoding apparatus at the time of field encoding can be increased.

Assume that the video decoded frame in the video stream is decoded, and the field image data sequence output after decoding is as follows: bot1, top2, top3, bot4, bot5. The value of the progressive_frame indicator bit of the video decoding frame in the video code stream is 2 (ie, the video decoding frame contains single field image data and the single field image data is top field image data) or 3 (ie, the video decoding frame contains a single Field map Like data and the single field image data is bottom field image data). Different from the foregoing example, the value of the top_field_first indication bit corresponding to the video decoding frame is not the same. For example, the values of the top_field_first indication bits corresponding to bot1, top2, top3, bot4, bot5, etc. are as follows: 0, 0, 1 , 1, 1, ....

Wherein, since the value of the top_field_first indication bit corresponding to bot1 and top2 is 0, the image corresponding to the two field image data is the top field image data appearing in the video code stream and then appearing in the bottom field image data, therefore, the video decoding device You can blend bot1 and top2 into one image. Since the value of the top_field_first indication bit corresponding to top3 and bot4 is 1, the top field image data in the image corresponding to the two image data appears before the bottom field image data in the video code stream, and the video decoding device can top3 Blend into an image with bot4. Others can be deduced by analogy. At this point, it can be considered that there is no image loss or transmission error in the video stream.

It is also assumed that the video decoded frame in the video stream is decoded, and the field image data sequence output after decoding is as follows: bot1, top2, top3, bot4, bot5. The progressive_frame indicator bit of the video decoding frame in the video stream is 2 or 3. The value of the top_field_first indication bit corresponding to the video decoding frame is different. For example, the values of the top_field_first indication bits corresponding to bot1, top2, top 3, bot4, top5, etc. are as follows: 0, 0, 0, 1, 1 ....

Since the value of the top_field_first indication bit corresponding to bot1 and top2 is 0, the image corresponding to the two field image data is the top field image data appearing in the video code stream and then appearing in the bottom field image data, so the video decoding device can set the bot1. Blend into an image with top2. Since the value of the top_field_first indication bit corresponding to top3 is 0, the top field image data in the image corresponding to the single field image data appears in the video code stream and then appears in the bottom field image data, and top3 is immediately adjacent to top2. Since an image cannot contain two top field image data, it can be inferred that a bottom field image data is lost between top2 and top3, or a bit error occurs in the video code stream during transmission so that some top_field_first indicator bits are displayed. And/or progressive_frame indicates a bit error. The video decoding device determines, according to the setting strategy, how to handle the frame loss or the error condition of the video and video code stream according to the value of the syntax element such as the progressive_frame indicator bit and the top_field_first indicator bit included in the video decoding frame in the video code stream. Frame loss or bit error.

The following briefly introduces the video compression method for the video encoding device. The video compression method may include intra-frame compression and inter-frame compression, and the video encoding apparatus now adopts an inter-frame compression method based on motion estimation. For example, the video encoding apparatus compresses and encodes an image by using an interframe compression method. The video encoding device divides the image block to be encoded into a plurality of equal-sized sub-image blocks, and then for each sub-image block, searches the reference image for the image block that best matches the current sub-image block as the prediction block, and then The sub-image block is subtracted from the corresponding pixel value of the prediction block to obtain a residual, and the value obtained by transforming and quantizing the residual is entropy encoded, and finally the encoded data such as the bit stream and the motion vector information obtained by entropy coding is encoded. Correspondingly, the video decoding device first obtains an entropy encoded bit stream, performs entropy decoding to obtain a corresponding residual, and corresponding motion vector information and the like encoded data; and then obtains a corresponding matching image block in the reference image according to the motion vector information (ie, the above The prediction block is further added according to the value of each pixel in the matching image block and the value of the corresponding pixel in the residual value to obtain the value of each pixel in the current sub-image block. Intra prediction refers to predicting a block by using the information in the image to obtain a prediction block, and the video encoding device obtains a pixel corresponding to the prediction block according to the prediction mode, the prediction direction, and the pixel value around the current image block, and the current image block pixel The residual is subtracted from the prediction block pixel, and the residual is transformed into the code stream after being transformed, quantized, and entropy encoded; the video decoding device parses the code stream, and performs entropy decoding, inverse quantization, and inverse transformation on the code stream to obtain a residual block. The video decoding device obtains a prediction block according to the prediction mode, the prediction direction, and the pixel values around the image block, and adds the residual block pixel to the prediction block pixel to obtain a reconstructed image block.

Inter-prediction coding is mainly used to eliminate the redundancy of video sequences in time. The specific processing process mainly includes: when the video encoding device encodes one image block in the current image, in all reference frames of the image block. A search is performed to obtain a prediction block corresponding to the image block in each reference frame, and the image block is encoded according to the acquired set of prediction blocks. In order to improve the efficiency of inter-prediction coding, the inter-predicted image can be further subdivided into a forward inter-frame prediction image, which is commonly known as P-frame in video coding and decoding technology, and a bi-directional inter-frame prediction image, that is, in video coding and decoding technology. Commonly known as B frames. The pre-interframe predictive image is encoded and decoded using the image before the current image to be encoded, and the bi-directional inter-predicted image is encoded and decoded using the image before and after the current image to be encoded. Since the bidirectional inter-predicted image needs to be coded and operated using the image after the current image to be coded, the image after the bi-directional inter-predicted image needs to be decoded and decoded before the bi-directional inter-frame prediction image is to be coded.

Since the bidirectional inter-predicted image uses the encoding information before and after the current image, the bi-directional inter-predicted image can improve the encoding efficiency compared to the forward inter-frame predicted image. In order to further improve the coding efficiency of the bidirectional inter-predicted image, the Hierarchical B technique is applied to the coding and decoding of the bi-directional inter-predicted image. Among them, in the hierarchical B frame technology, the bidirectional inter prediction image can also be used as a reference image. Different levels of B frames have different priorities, and B frames with higher priority can be used. A reference frame for a B frame with a lower priority. The priority of the above B frame can be used for identification by some syntax elements.

In order to facilitate a better understanding and implementation of the above technical solutions of the implementation of the present invention, related devices for implementing the above solutions are also provided below.

Referring to FIG. 3, a video encoding apparatus provided by an implementation of the present invention may include:

The acquiring unit 310 is configured to acquire an image.

The encoding unit 320 is configured to perform video encoding on the first field image data of the image to obtain a first video encoding frame, and perform video encoding on the second field image data of the image to obtain a second video encoding frame.

The writing unit 330 is configured to write the first video encoding frame and the second video encoding frame into the video code stream.

The first video coding frame includes a first field coding indication, and the first field coding indication indicates that the first video coding frame is a video coding frame corresponding to single field image data, and the first field coding indication further indicates the first The single field image data included in the video encoding frame is top field image data or bottom field image data, and the first field encoding indication further indicates that the first video encoding frame and the second video encoding frame appear in the video stream. In order.

The first field image data is top field image data, and the second field image data is bottom field image data, or the second field image data is top field image data, and the first field image data is a bottom field. Image data.

In some possible implementation manners of the present invention, the first field coding indication may include a first indication parameter and a second indication parameter. The first indication parameter indicates that the first video encoding frame is a video encoding frame corresponding to single field image data (ie, the first indication parameter may indicate that the first video encoding frame includes a single field image data of an image, and The first indicator parameter further includes the single field image data included in the first video encoding frame as the top field image data or the bottom field image data (for example, assuming that the image is the same for the two fields of image data) The top field image data is video-encoded to obtain a first video-coded frame, and the first indication parameter indicates that the single-field image data included in the first video-coded frame is top-field image data, and the bottom field image data of the image is assumed to be performed. The video encoding is performed to obtain a first video encoding frame, and the first indication parameter indicates that the single field image data included in the first video encoding frame is bottom field image data). The second indication parameter indicates that the first video encoding frame and the second video encoding frame appear in the video stream. sequence. For example, if the first video coding frame in the video code stream appears before the second video coding frame, the second indication parameter indicates that the first video coding frame and the second video coding frame are in the video code stream. The order of occurrence is that the first video coding frame appears before the second video coding frame. On the other hand, if the first video encoding frame in the video stream is followed by the second video encoding frame, the second indication parameter may indicate that the first video encoding frame and the second video encoding frame are in the video stream. The sequence of occurrences occurs after the first video encoding frame is followed by the second video encoding frame.

In some embodiments of the present invention, the second video coding frame includes a second field coding indication, where the second field coding indication indicates that the second video coding frame is a video coding frame corresponding to single field image data, and the second field The encoding indication further indicates that the single field image data included in the second video encoding frame is bottom field image data or top field image data, and the second field encoding indication further indicates that the second video encoding frame and the first video encoding frame are The order in which the above video streams appear.

In some possible implementation manners of the present invention, the second field coding indication may include a fifth finger Show parameters and fifth indication parameters. The fifth indication parameter indicates that the second video coding frame is a video coding frame corresponding to single field image data (that is, the fifth indication parameter may indicate that the second video coding frame includes a single field image data of an image, and The second indication parameter does not include an image, and the fifth indication parameter further indicates that the single field image data included in the second video coding frame is top field image data or bottom field image data (for example, assuming that the image is The top field image data is video-encoded to obtain a second video-coded frame, and the fifth indication parameter indicates that the single-field image data included in the second video-coded frame is top-field image data, and the bottom field image data of the image is assumed to be performed. Video encoding to obtain a second video encoding frame, the fifth indication parameter indicating that the single field image data included in the second video encoding frame is bottom field image data). The sixth indication parameter indicates a sequence in which the second video coding frame and the second video coding frame appear in the video code stream. For example, if the first video coding frame in the video code stream appears before the second video coding frame, the sixth indication parameter indicates that the first video coding frame and the second video coding frame are in the video code stream. The order of occurrence is that the first video coding frame appears before the second video coding frame. On the other hand, if the first video encoding frame in the video stream is followed by the second video encoding frame, the sixth indication parameter may indicate that the first video encoding frame and the second video encoding frame are in the video stream. The sequence of occurrences occurs after the first video encoding frame is followed by the second video encoding frame.

The fifth indication parameter may include, for example, at least two bits, wherein the fifth indication parameter example For example, the parameter progressive line frame (progressive_frame) indicator bit or picture structure (picture_structure) indicator bit or other extended indicator bit. The sixth indication parameter includes, for example, at least 1 bit. The sixth indication parameter may be, for example, a top field first (top_field_first) indicator bit or other extended indicator bit or the like.

It is to be understood that the functions of the functional modules of the video encoding apparatus 300 of this embodiment may be specifically implemented according to the method in the foregoing method embodiments. For the specific implementation process, reference may be made to the related description of the foregoing method embodiments, and details are not described herein again. . The video encoding device 300 can be any device that needs to output and store video, such as a notebook computer, a tablet computer, a personal computer, a mobile phone, and the like.

It can be seen that the video encoding apparatus 300 of the embodiment separately performs video encoding on the first field image data and the second field image data of the image to obtain the first video encoding frame and the second video encoding frame; and the first video encoding frame. And writing a video stream to the second video encoded frame. The first field coding instruction indicates that the first video coding frame is a video coding frame corresponding to the single field image data, and the first field coding indication further indicates the foregoing. The single field image data included in a video encoding frame is top field image data or bottom field image data, and the first field encoding indication further indicates that the first video encoding frame and the second video encoding frame appear in the video stream. The order of precedence. Wherein, because the first video coding frame is explicitly indicated, the sequence of the homologous video coding frames obtained from the image data of different fields of the same image appears in the video code stream, which is beneficial for the video decoding device to know clearly based on the same The sequence of the homologous video coding frames obtained by the image data of different fields of the image appears in the video code stream, thereby facilitating the video decoding device to correctly image the different field image data of the same image obtained by decoding.

Referring to FIG. 4, an embodiment of the present invention further provides a video decoding apparatus 400, which may include: a decoding unit 410 and an aforesaid unit 420.

The decoding unit 410 is configured to perform video decoding on the first video decoding frame in the video code stream to obtain first image decoding data, and perform video decoding on the second video decoding frame in the video code stream to obtain a second image. Decode the data. The first video decoding frame includes a first field coding indication, where the first field coding indication indicates that the first video decoding frame is a video decoding frame corresponding to single field image data, and the first field coding indication further indicates the foregoing The single field image data included in a video decoding frame is top field image data or bottom field image data, and the first field encoding indication further indicates that the first video decoding frame and the homologous video decoding frame of the first video decoding frame are Above video An order of appearance in the code stream; wherein the first video decoded frame and the homologous video decoded frame are obtained based on image data of different fields of the same image.

The blending unit 420 is configured to blend the first image decoded data and the second image decoded data according to the first field encoding instruction to obtain a blended image.

In some possible implementation manners of the present disclosure, the first field coding indication may include a first indication parameter and a second indication parameter, where the first indication parameter indication may indicate that the first video decoding frame is a single field image data corresponding to Video decoding frame (ie, the first indication parameter may indicate that the first video decoding frame includes one field of image data of one image, and does not include two fields of image data of one image), and the first indication parameter may also be Instructing the single video image data included in the first video decoding frame to be top field image data or bottom field image data (eg, assuming that the single field image data included in the first video decoding frame is top field image data, the first indicator parameter And indicating that the single field image data included in the first video decoding frame is top field image data, and the single field image data included in the first video decoding frame is bottom field image data, and the first indication parameter indicates that the first video decoding frame includes The single field image data is the bottom field image data). The second indication parameter may indicate an order of appearance of the first video decoding frame and the homogenous video decoding frame of the first video decoding frame in the video code stream.

In another possible implementation manner of the present invention, the first field coding indication may include a third indication parameter, a fourth indication parameter, and a second indication parameter, where the third indication parameter indicates that the first video decoding frame is a single The video decoded frame corresponding to the field image data. The fourth indication parameter indicates that the single field image data included in the first video decoding frame is top field image data or bottom field image data (for example, assuming that the single field image data included in the first video decoding frame is top field image data, The fourth indication parameter indicates that the single field image data included in the first video decoding frame is top field image data, and the single field image data included in the first video decoding frame is bottom field image data, and the fourth indication parameter indicates the foregoing The single field image data contained in a video decoding frame is bottom field image data). The second indication parameter may indicate an order of appearance of the first video decoding frame and the homogenous video decoding frame of the first video decoding frame in the video code stream.

The first indication parameter may include, for example, at least two bits, wherein the first indication parameter may be, for example, a parameter progressive_frame indicator bit or a picture_structure indicator bit or other extension indicator bit. The second indication parameter includes, for example, at least 1 bit. The second indication parameter may be, for example, a top field first (top_field_first) indicator bit or other expansion Exhibition indicators, etc.

In some possible implementation manners of the present invention, the foregoing mixing unit 420 may be configured to: if the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame is in the video code stream, after the first a video decoding frame is generated, and the second video decoding frame is displayed in the first video decoding frame in the video stream, and the decoded output sequence of the first image decoding data and the second image decoding data are adjacent to each other. Blending the first image decoded data and the second image decoded data to obtain a blended image;

Alternatively, the foregoing mixing unit 420 may be configured to: if the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame appears before the first video decoding frame in the video code stream, and the foregoing And the second video decoding frame appears in the video code stream before the first video decoding frame, and the decoded output sequence of the first image decoding data and the second image decoded data are adjacent to each other, and the first image decoding data may be Blending with the second image decoded data described above to obtain a blended image.

For example, the foregoing mixing unit 420 may be specifically configured to: if the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame is in the video code stream, and then appears in the first video decoding frame, and the foregoing The field coding indication further indicates that the single field image data included in the first video decoding frame is top field image data, and the second field coding indication indicates that the homogenous video decoding frame of the second video decoding frame is in the video stream. And the second video encoding frame is further configured to indicate that the single field image data included in the second video decoding frame is bottom field image data, and the second video decoding frame is in the video stream. And then appearing in the first video decoding frame, and the decoded output order of the first image decoding data and the second image decoding data are adjacent to each other, and the first image decoding data and the second image decoding data are blended to obtain a blending image;

or;

The foregoing mixing unit 420 may be specifically configured to: if the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame appears before the first video decoding frame in the video code stream, and the first field The coding indication further indicates that the single field image data included in the first video decoding frame is top field image data, and the second field coding indication indicates that the homologous video decoding frame of the second video decoding frame is in the video code stream. The second video decoding frame is generated, and the second field encoding indication further indicates that the single field image data included in the second video decoding frame is bottom field image data, and And the second video decoding frame is generated in the video code stream before the first video decoding frame, and the first image decoding data and the second image decoding data are sequentially adjacent to the decoded output sequence, and the first image is decoded. The data is blended with the second image decoded data to obtain a blended image;

or;

The foregoing mixing unit 420 may be specifically configured to: if the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame is in the video code stream, and then appears in the first video decoding frame, and the first field The coding indication further indicates that the single field image data included in the first video decoding frame is bottom field image data, and the second field coding indication indicates that the homologous video decoding frame of the second video decoding frame precedes the video code stream. The second video decoding frame is generated, and the second field coding indication further indicates that the single field image data included in the second video decoding frame is top field image data, and the second video decoding frame is in the video code stream. The first video decoding frame appears, and the decoded output order of the first image decoded data and the second image decoded data are adjacent to each other, and the first image decoded data and the second image decoded data are blended to obtain a blended image;

or;

The foregoing mixing unit 420 may be specifically configured to: if the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame appears before the first video decoding frame in the video code stream, and the first field The coding indication further indicates that the single field image data included in the first video decoding frame is bottom field image data, and the second field coding indication indicates that the homologous video decoding frame of the second video decoding frame is in the video code stream. The second video decoding frame is generated, and the second field encoding indication further indicates that the single field image data included in the second video decoding frame is top field image data, and the second video decoding frame precedes the video stream in the video stream. The first video decoded frame appears, and the first image decoded data and the second image decoded data are sequentially adjacent to each other, and the first image decoded data and the second image decoded data are blended to obtain a blended image.

In some possible implementation manners of the present disclosure, the foregoing second field coding indication may include a fifth indication parameter and a sixth indication parameter, where the fifth indication parameter indication may indicate that the second video decoding frame is a single field image data corresponding to Video decoding frame (ie, the fifth indication parameter may indicate that the second video decoding frame includes one field of image data of one image, and does not include two fields of image data of one image), and the fifth indication parameter may also be Instructing the single video image data included in the second video decoding frame to be top field image data or bottom field image data (for example, assuming that the single field image data included in the second video decoding frame is top field image data, the fifth indicator parameter Indicating the above second video decoding The single field image data included in the frame is top field image data, and the single field image data included in the second video decoding frame is bottom field image data, and the fifth indication parameter indicates that the single field image data included in the second video decoding frame is Bottom field image data). The sixth indication parameter may indicate an order of appearance of the homologous video decoding frame of the second video decoding frame and the second video decoding frame in the video code stream.

It is to be understood that the functions of the functional modules of the video decoding apparatus 400 of this embodiment may be specifically implemented according to the method in the foregoing method embodiments. For the specific implementation process, reference may be made to the related description of the foregoing method embodiments, and details are not described herein again. . The video decoding device 400 can be any device that needs to output and play video, such as a notebook computer, a tablet computer, a personal computer, a mobile phone, and the like.

It can be seen that the video decoding apparatus 400 of this embodiment performs video decoding on the first video decoding frame and the second video decoding frame in the video code stream to obtain the first image decoding data and the second image decoding data, since And an indication of the first field coding indication included in the first video decoding frame, and an appearance order of the second video decoding frame and the first video decoding frame in the video code stream, and the first image decoding data and the second image. Decoding the output order of the data to determine whether to blend the first image decoded data and the second image decoded data to obtain a blended image. Wherein, since the first video decoding frame explicitly indicates the sequence in which the first video decoding frame and the homologous video decoding frame appear in the video code stream, this is advantageous for the video decoding device to explicitly know different fields based on the same image. The order in which the homologous video decoded frames obtained by the image data appear in the video code stream further facilitates the video decoding device to correctly image the different field image data of the same image obtained by decoding.

Referring to FIG. 5, FIG. 5 is a schematic diagram of a video encoding apparatus 500 according to an embodiment of the present invention. The video encoding apparatus 500 may include at least one bus 501, at least one processor 502 connected to the bus 501, and at least one memory connected to the bus 501. 503.

Wherein, the processor 502 calls the code stored in the memory 503 via the bus 501 for acquiring an image; the first field image data of the image is video-encoded to obtain a first video-encoded frame; and the second field image of the image is The data is video encoded to obtain a second video encoded frame; the first video encoded frame and the second video encoded frame are written to the video stream.

In some embodiments of the present invention, the second video coding frame includes a second field coding indication, where the second field coding indication indicates that the second video coding frame is a video coding frame corresponding to single field image data, and the second field The coding indication further indicates that the single field image data included in the second video coding frame is bottom field image data or top field image data, and the second field coding indication further indicates the foregoing The order in which the two video encoded frames and the first video encoded frames appear in the video stream.

In some possible implementation manners of the present invention, the second field coding indication may include a fifth indication parameter and a fifth indication parameter. The fifth indication parameter indicates that the second video coding frame is a video coding frame corresponding to single field image data (that is, the fifth indication parameter may indicate that the second video coding frame includes a single field image data of an image, and The second indication parameter does not include an image, and the fifth indication parameter further indicates that the single field image data included in the second video coding frame is top field image data or bottom field image data (for example, assuming that the image is The top field image data is video-encoded to obtain a second video-coded frame, and the fifth indication parameter indicates that the single-field image data included in the second video-coded frame is top-field image data, and the bottom field image data of the image is assumed to be performed. Video encoding to obtain a second video encoding frame, the fifth indication parameter indicating that the single field image data included in the second video encoding frame is bottom field image data). The sixth indication parameter indicates a sequence in which the second video coding frame and the second video coding frame appear in the video code stream. For example, if the first video coding frame in the video code stream appears before the second video coding frame, the sixth indication parameter indicates that the first video coding frame and the second video coding frame are in the video code stream. The order of occurrence is that the first video coding frame appears before the second video coding frame. On the other hand, if the first video encoding frame in the video stream is followed by the second video encoding frame, the sixth indication parameter may indicate that the first video encoding frame and the second video encoding frame are in the video stream. The sequence of occurrences occurs after the first video encoding frame is followed by the second video encoding frame.

In other possible implementation manners of the present invention, the foregoing second field coding indication may include, for example, a seventh indication parameter, an eighth indication parameter, and a sixth indication parameter. The seventh indication parameter may indicate that the second video coding frame is a video coding frame corresponding to single field image data (that is, the seventh indication parameter may indicate that the second video coding frame includes a single field image data of an image, Two image data without an image). The eighth indication parameter may indicate that the single field image data included in the second video coding frame is top field image data or bottom field image data (eg, assuming that the top field image data of the image is video encoded to obtain a second video) Encoding the frame, the eighth indication parameter indicating that the single field image data included in the second video encoding frame is top field image data, and assuming that the bottom field image data of the image is video encoded to obtain a second video encoding frame, The eight indication parameter indicates that the single field image data included in the second video encoding frame is bottom field image data). The sixth indication parameter indicates that the second video encoding frame and the second video encoding frame are on The order in which the video streams appear.

It is to be understood that the functions of the functional modules of the video coding apparatus 500 of the present embodiment may be specifically implemented according to the method in the foregoing method embodiments. For the specific implementation process, reference may be made to the related description of the foregoing method embodiments, and details are not described herein again. . The video encoding device 500 can be any device that needs to output and store video, such as a notebook computer, a tablet computer, a personal computer, a mobile phone, and the like.

It can be seen that the video encoding apparatus 500 of the embodiment separately performs video encoding on the first field image data and the second field image data of the image to obtain the first video encoding frame and the second video encoding frame; and the first video encoding frame. And writing a video stream to the second video encoded frame. The first field coding instruction indicates that the first video coding frame is a video coding frame corresponding to the single field image data, and the first field coding indication further indicates the foregoing. The single field image data included in a video encoding frame is top field image data or bottom field image data, and the first field encoding indication further indicates that the first video encoding frame and the second video encoding frame appear in the video stream. The order of precedence. Wherein, because the first video coding frame is explicitly indicated, the sequence of the homologous video coding frames obtained from the image data of different fields of the same image appears in the video code stream, which is beneficial for the video decoding device to know clearly based on the same The sequence of the homologous video coding frames obtained by the image data of different fields of the image appears in the video code stream, thereby facilitating the video decoding device to correctly image the different field image data of the same image obtained by decoding.

Referring to FIG. 6, FIG. 6 is a structural block diagram of a video encoding apparatus 600 according to another embodiment of the present invention. The video encoding apparatus 600 may include at least one processor 601, at least one network interface 604 or other user interface 603, a memory 606, and at least one communication bus 602. Communication bus 602 is used to implement connection communication between these components. The video encoding device 600 may optionally include a user interface 603, including a display (eg, a touch screen, LCD, CRT, Holographic or Projector, etc.), a pointing device (eg, a mouse, a trackball) ) a touch panel or touch screen, etc.), a camera and/or a sound pickup device, and the like.

Wherein, the memory 602 can include a read only memory and a random access memory, and 601 provides instructions and data. A portion of memory 602 may also include non-volatile random access memory (NVRAM).

In some implementations, memory 606 stores the following elements, executable modules or data structures, or a subset thereof, or their extended set:

The operating system 6061 includes various system programs for implementing various basic services and processing hardware-based tasks.

The application module 6062 includes various applications for implementing various application services.

In an embodiment of the present invention, the processor 601 acquires an image by calling a program or instruction stored in the memory 606; video encoding the first field image data of the image to obtain a first video encoding frame; and second to the image The field image data is video encoded to obtain a second video encoded frame; the first video encoded frame and the second video encoded frame are written to the video bitstream.

It is to be understood that the functions of the functional modules of the video encoding apparatus 600 of this embodiment may be specifically implemented according to the method in the foregoing method embodiments. For the specific implementation process, reference may be made to the related description of the foregoing method embodiments, and details are not described herein again. . The video encoding device 600 can be any device that needs to output and store video, such as a notebook computer, a tablet computer, a personal computer, a mobile phone, and the like.

It can be seen that the video encoding apparatus 600 of the embodiment separately performs video encoding on the first field image data and the second field image data of the image to obtain the first video encoding frame and the second video encoding frame; and the first video encoding frame. And writing a video stream to the second video encoded frame. The first field coding instruction indicates that the first video coding frame is a video coding frame corresponding to the single field image data, and the first field coding indication further indicates the foregoing. The single field image data included in a video encoding frame is top field image data or bottom field image data, and the first field encoding indication further indicates that the first video encoding frame and the second video encoding frame appear in the video stream. The order of precedence. Wherein, because the first video coding frame is explicitly indicated, the sequence of the homologous video coding frames obtained from the image data of different fields of the same image appears in the video code stream, which is beneficial for the video decoding device to know clearly based on the same The sequence of the homologous video coding frames obtained by the image data of different fields of the image appears in the video code stream, thereby facilitating the video decoding device to correctly image the different field image data of the same image obtained by decoding.

Referring to FIG. 7, FIG. 7 is a schematic diagram of a video decoding apparatus 700 according to an embodiment of the present invention. The video decoding apparatus 700 can include at least one bus 701, at least one processor 702 connected to the bus 701, and at least one memory connected to the bus 701. 703.

The processor 702 calls, by using the bus 701, the code stored in the memory 703 for video decoding the first video decoded frame in the video code stream to obtain first image decoded data; and the second in the video code stream. The video decoded frame is video decoded to obtain second image decoded data. The first video decoding frame includes a first field coding indication, where the first field coding indication indicates that the first video decoding frame is a video decoding frame corresponding to single field image data, and the first field coding indication further indicates the foregoing The single field image data contained in a video decoding frame is the top field image data or the bottom field Image data, and the first field coding indication further indicates an order of appearance of the first video decoding frame and the homogenous video decoding frame of the first video decoding frame in the video code stream; wherein the first video decoding frame and The homologous video decoding frame is obtained based on image data of different fields of the same image; and the first image decoding data and the second image decoding data are blended according to the first field encoding instruction to obtain a blended image.

The first indication parameter may include, for example, at least two bits, wherein the first indication parameter may be, for example, a parameter progressive_frame indicator bit or a picture_structure indicator bit or other extension indicator bit. The second indication parameter includes, for example, at least 1 Bits. The second indication parameter may be, for example, a top field first (top_field_first) indicator bit or other extended indicator bit or the like.

In some possible implementation manners of the present invention, the processor 702 may be configured to: if the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame is in the video code stream, after the first video Decoding a frame, wherein the second video decoding frame is present in the video stream and after the first video decoding frame, and the decoded output sequence of the first image decoded data and the second image decoded data are adjacent The first image decoded data and the second image decoded data are blended to obtain a blended image;

or;

The processor 702 may be configured to: if the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame appears in the video code stream before the first video decoding frame, and the second video decoding And the frame appears in the video stream according to the first video decoding frame, and the first image decoding data and the second image decoded data are sequentially adjacent to the decoded output sequence, and the first image decoding data and the foregoing The two image decoded data are blended to obtain a blended image.

For example, the processor 702 may be specifically configured to: if the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame is in the video code stream, and then appears in the first video decoding frame, and the foregoing The field coding indication further indicates that the single field image data included in the first video decoding frame is top field image data, and the second field coding indication indicates that the homogenous video decoding frame of the second video decoding frame is in the video stream. And the second video encoding frame is further configured to indicate that the single field image data included in the second video decoding frame is bottom field image data, and the second video decoding frame is in the video stream. And then appearing in the first video decoding frame, and the decoded output order of the first image decoding data and the second image decoding data are adjacent to each other, and the first image decoding data and the second image decoding data are blended to obtain a blending image;

or;

The processor 702 is specifically configured to: if the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame appears in the video code stream before the first video decoding frame, and the first field The encoding indication further indicates that the single field image data included in the first video decoding frame is top field image data, and the second field encoding indication indicates the same video of the second video decoding frame. Decoding the frame in the video stream, and then appearing in the second video decoding frame, and the second field encoding indication further indicating that the single field image data included in the second video decoding frame is bottom field image data, and the second video is Decoding the frame in the video stream according to the first video decoding frame, and the first image decoding data and the second image decoding data are sequentially outputted, and the first image decoding data and the first The two image decoding data are blended to obtain a blended image;

or;

The processor 702 may be specifically configured to: if the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame is in the video code stream, and then appears in the first video decoding frame, and the first field The coding indication further indicates that the single field image data included in the first video decoding frame is bottom field image data, and the second field coding indication indicates that the homologous video decoding frame of the second video decoding frame precedes the video code stream. The second video decoding frame is generated, and the second field coding indication further indicates that the single field image data included in the second video decoding frame is top field image data, and the second video decoding frame is in the video code stream. The first video decoding frame appears, and the decoded output order of the first image decoded data and the second image decoded data are adjacent to each other, and the first image decoded data and the second image decoded data are blended to obtain a blended image;

or;

The processor 702 is specifically configured to: if the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame appears in the video code stream before the first video decoding frame, and the first field The coding indication further indicates that the single field image data included in the first video decoding frame is bottom field image data, and the second field coding indication indicates that the homologous video decoding frame of the second video decoding frame is in the video code stream. The second video decoding frame is generated, and the second field encoding indication further indicates that the single field image data included in the second video decoding frame is top field image data, and the second video decoding frame precedes the video stream in the video stream. The first video decoded frame appears, and the first image decoded data and the second image decoded data are sequentially adjacent to each other, and the first image decoded data and the second image decoded data are blended to obtain a blended image.

In some possible implementation manners of the present disclosure, the foregoing second field coding indication may include a fifth indication parameter and a sixth indication parameter, where the fifth indication parameter indication may indicate that the second video decoding frame is a single field image data corresponding to Video decoding frame (ie, the fifth indication parameter may indicate that the second video decoding frame includes one field of image data of one image, and does not include two fields of image data of one image), and the fifth indication parameter may also be Instructing the single field picture included in the second video decoding frame The image data is top field image data or bottom field image data (for example, assuming that the single field image data included in the second video decoding frame is top field image data, the fifth indication parameter indicates a single field included in the second video decoding frame. The image data is the top field image data, and the single field image data included in the second video decoding frame is the bottom field image data, and the fifth indication parameter indicates that the single field image data included in the second video decoding frame is the bottom field image data) . The sixth indication parameter may indicate an order of appearance of the homologous video decoding frame of the second video decoding frame and the second video decoding frame in the video code stream.

It is to be understood that the functions of the functional modules of the video decoding apparatus 700 of this embodiment may be specifically implemented according to the method in the foregoing method embodiments. For the specific implementation process, reference may be made to the related description of the foregoing method embodiments, and details are not described herein again. . The video decoding device 700 can be any device that needs to output and play video, such as a notebook computer, a tablet computer, a personal computer, a mobile phone, and the like.

It can be seen that the video decoding apparatus 700 of this embodiment performs video decoding on the first video decoding frame and the second video decoding frame in the video code stream to obtain the first image decoding data and the second image decoding data, since And an indication of the first field coding indication included in the first video decoding frame, and an appearance order of the second video decoding frame and the first video decoding frame in the video code stream, and The decoded output order of the first image decoded data and the second image decoded data determines whether the first image decoded data and the second image decoded data are blended to obtain a blended image. Wherein, since the first video decoding frame explicitly indicates the sequence in which the first video decoding frame and the homologous video decoding frame appear in the video code stream, this is advantageous for the video decoding device to explicitly know different fields based on the same image. The order in which the homologous video decoded frames obtained by the image data appear in the video code stream further facilitates the video decoding device to correctly image the different field image data of the same image obtained by decoding.

Referring to FIG. 8, FIG. 8 is a structural block diagram of a video decoding apparatus 800 according to another embodiment of the present invention. The video decoding device 800 may include at least one processor 801, at least one network interface 804 or other user interface 803, a memory 808, and at least one communication bus 802. Communication bus 802 is used to implement connection communication between these components. The video decoding device 800 can optionally include a user interface 803, including a display (eg, a touch screen, LCD, CRT, Holographic or Projector, etc.), a pointing device (eg, a mouse, a trackball) ) a touch panel or touch screen, etc.), a camera and/or a sound pickup device, and the like.

The memory 802 can include read only memory and random access memory and provides instructions and data to the processor 801. A portion of memory 802 may also include non-volatile random access memory (NVRAM).

In some implementations, memory 808 stores elements, executable modules or data structures, or a subset thereof, or their extension set:

The operating system 8081 includes various system programs for implementing various basic services and processing hardware-based tasks.

The application module 8082 includes various applications for implementing various application services.

In an embodiment of the present invention, the processor 801 performs video decoding on the first video decoded frame in the video code stream to obtain first image decoded data by calling a program or instruction stored in the memory 808; The second video decoded frame is video decoded to obtain second image decoded data. The first video decoding frame includes a first field coding indication, where the first field coding indication indicates that the first video decoding frame is a video decoding frame corresponding to single field image data, and the first field coding indication further indicates the foregoing The single field image data included in a video decoding frame is top field image data or bottom field image data, and the first field encoding indication further indicates that the first video decoding frame and the homologous video decoding frame of the first video decoding frame are The order of appearance in the above video stream; The first video decoding frame and the homologous video decoding frame are obtained based on image data of different fields of the same image; and the first image decoding data and the second image decoding data are blended according to the first field encoding instruction. Blend the image.

In some possible implementation manners of the present invention, the processor 801 may be configured to: if the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame is in the video code stream, after the first video Decoding a frame, wherein the second video decoding frame is present in the video stream and after the first video decoding frame, and the decoded output sequence of the first image decoded data and the second image decoded data are adjacent The first image decoded data and the second image decoded data are blended to obtain a blended image;

or;

The processor 801 may be configured to: if the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame appears in the video code stream before the first video decoding frame, and the second video decoding And the frame appears in the video stream according to the first video decoding frame, and the first image decoding data and the second image decoded data are sequentially adjacent to the decoded output sequence, and the first image decoding data and the foregoing The two image decoded data are blended to obtain a blended image.

For example, the processor 801 may be specifically configured to: if the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame is in the video code stream, and then appears in the first video decoding frame, and the foregoing The field coding indication further indicates that the single field image data included in the first video decoding frame is top field image data, and the second field coding indication indicates that the homogenous video decoding frame of the second video decoding frame is in the video stream. And the second video encoding frame is further configured to indicate that the single field image data included in the second video decoding frame is bottom field image data, and the second video decoding frame is in the video stream. And then appearing in the first video decoding frame, and the decoded output order of the first image decoding data and the second image decoding data are adjacent to each other, and the first image decoding data and the second image decoding data are blended to obtain a blending image;

or;

The processor 801 may be specifically configured to: if the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame appears before the first video decoding frame in the video code stream, and the first field The coding indication further indicates that the single field image data included in the first video decoding frame is top field image data, and the second field coding indication indicates that the homologous video decoding frame of the second video decoding frame is in the video code stream. The second video decoding frame is generated, and the second field coding indication further indicates that the single field image data included in the second video decoding frame is bottom field image data, and The second video decoding frame appears in the video code stream before the first video decoding frame, and the first image decoded data and the second image decoded data are sequentially decoded and outputted, and the first image is decoded. The data is blended with the second image decoded data to obtain a blended image;

or;

The processor 801 is specifically configured to: if the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame is in the video code stream, and then appears in the first video decoding frame, and the first field The coding indication further indicates that the single field image data included in the first video decoding frame is bottom field image data, and the second field coding indication indicates that the homologous video decoding frame of the second video decoding frame precedes the video code stream. The second video decoding frame is generated, and the second field coding indication further indicates that the single field image data included in the second video decoding frame is top field image data, and the second video decoding frame is in the video code stream. The first video decoding frame appears, and the decoded output order of the first image decoded data and the second image decoded data are adjacent to each other, and the first image decoded data and the second image decoded data are blended to obtain a blended image;

or;

The processor 801 may be specifically configured to: if the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame appears before the first video decoding frame in the video code stream, and the first field The coding indication further indicates that the single field image data included in the first video decoding frame is bottom field image data, and the second field coding indication indicates that the homologous video decoding frame of the second video decoding frame is in the video code stream. The second video decoding frame is generated, and the second field encoding indication further indicates that the single field image data included in the second video decoding frame is top field image data, and the second video decoding frame precedes the video stream in the video stream. The first video decoded frame appears, and the first image decoded data and the second image decoded data are sequentially adjacent to each other, and the first image decoded data and the second image decoded data are blended to obtain a blended image.

It is to be understood that the functions of the functional modules of the video decoding apparatus 800 of this embodiment may be specifically implemented according to the method in the foregoing method embodiment. For the specific implementation process, reference may be made to the related description of the foregoing method embodiments, and details are not described herein again. . The video decoding device 800 can be any device that needs to output and play video, such as a notebook computer, a tablet computer, a personal computer, a mobile phone, and the like.

It can be seen that the video decoding apparatus 800 of this embodiment performs video decoding on the first video decoding frame and the second video decoding frame in the video code stream to obtain the first image decoding data and the second image decoding data, since And an indication of the first field coding indication included in the first video decoding frame, and an appearance order of the second video decoding frame and the first video decoding frame in the video code stream, and the first image decoding data and the second image. Decoding the output order of the data to determine whether to blend the first image decoded data and the second image decoded data to obtain a blended image. Wherein, since the first video decoding frame explicitly indicates the sequence in which the first video decoding frame and the homologous video decoding frame appear in the video code stream, this is advantageous for the video decoding device to explicitly know different fields based on the same image. The order in which the homologous video decoded frames obtained by the image data appear in the video code stream further facilitates the video decoding device to correctly image the different field image data of the same image obtained by decoding.

The embodiment of the present invention further provides a computer storage medium, wherein the computer storage medium may store a program, where the program includes some or all of the steps of any one of the video encoding methods or the video decoding methods described in the foregoing method embodiments. .

It should be noted that, for the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should understand that the present invention is not limited by the described action sequence. Because certain steps may be performed in other sequences or concurrently in accordance with the present invention. In addition, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

In the above embodiments, the descriptions of the various embodiments are different, and the details that are not detailed in a certain embodiment can be referred to the related descriptions of other embodiments.

In the several embodiments provided herein, it should be understood that the disclosed apparatus may be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the above units is only a logical function division. In actual implementation, there may be another division manner. For example, multiple units or components may be combined or integrated. Go to another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical or otherwise.

The units described above as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or software. The implementation of the energy unit.

The above-described integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server or network device, etc.) to perform all or part of the steps of the above-described methods of various embodiments of the present invention. The foregoing storage medium includes: a U disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk, and the like. .

The above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the embodiments are modified, or equivalent to some of the technical features, and the modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

A video encoding method, comprising:

Get an image;

Performing video encoding on the first field image data of the image to obtain a first video encoding frame;

Performing video encoding on the second field image data of the image to obtain a second video encoding frame;

Writing the first video encoded frame and the second video encoded frame into a video code stream;

The first video coding frame includes a first field coding indication, and the first field coding indication indicates that the first video coding frame is a video coding frame corresponding to single field image data, and the first field coding indication is further Instructing the first video encoding frame to include single field image data as top field image data or bottom field image data, the first field encoding indication further indicating the first video encoding frame and the second video encoding frame a sequence of occurrences in the video stream;

The first field image data is top field image data, and the second field image data is bottom field image data, or the second field image data is top field image data, and the first field image is The data is bottom field image data.
The method of claim 1 wherein

The first field coding indication includes a first indication parameter and a second indication parameter;

The first indication parameter indicates that the first video coding frame is a video coding frame corresponding to single field image data, and the first indication parameter further indicates that the single video image data included in the first video coding frame is top. Field image data or bottom field image data;

The second indication parameter indicates a sequence in which the first video coding frame and the second video coding frame appear in the video code stream.
The method according to claim 1, wherein the first field coding indication comprises a third indication parameter, a fourth indication parameter and a second indication parameter;

The third indication parameter indicates that the first video coding frame is a video coding frame corresponding to single field image data;

The fourth indication parameter indicates that the single field image data included in the first video coding frame is top field image data or bottom field image data;

The second indication parameter indicates a sequence in which the first video coding frame and the second video coding frame appear in the video code stream.
Method according to any of claims 1 to 3, characterized in that said second video The coded frame includes a second field coding indication, the second field coding indication indicates that the second video coding frame is a video coding frame corresponding to single field image data, and the second field coding indication further indicates the second video coding The single field image data contained in the frame is bottom field image data or top field image data, and the second field encoding indication further indicates that the second video encoded frame and the first video encoded frame are in the video bitstream. The order of appearance.
A video decoding method, comprising:

Performing video decoding on the first video decoded frame in the video code stream to obtain first image decoded data;

Performing video decoding on the second video decoded frame in the video code stream to obtain second image decoding data;

The first video decoding frame includes a first field coding indication, where the first field coding indication indicates that the first video decoding frame is a video decoding frame corresponding to single field image data, and the first field coding indication is further Instructing the first video decoding frame to include single field image data as top field image data or bottom field image data, and the first field encoding indication further indicating the first video decoding frame and the first video decoding frame The order in which the homologous video decoded frames appear in the video codestream; wherein the first video decoded frame and the homogenous video decoded frame are obtained based on image data of different fields of the same image;

And blending the first image decoding data and the second image decoding data according to the first field encoding instruction to obtain a blending image.
The method of claim 5 wherein:

The first field coding indication includes a first indication parameter and a second indication parameter;

The first indication parameter indication indicates that the first video decoding frame is a video decoding frame corresponding to the single field image data, and the first indication parameter further indicates that the single field image data included in the first video decoding frame is Top field image data or bottom field image data;

The second indication parameter indicates an order of appearance of the homologous video decoding frame of the first video decoding frame and the first video decoding frame in the video code stream.
The method according to claim 5, wherein the first field coding indication comprises a third indication parameter, a fourth indication parameter and a second indication parameter;

The third indication parameter indicates that the first video decoding frame is a video decoding frame corresponding to single field image data;

The fourth indication parameter indicates that the single field image data included in the first video decoding frame is top field image data or bottom field image data;

The second indication parameter indicates an order of appearance of the homologous video decoding frame of the first video decoding frame and the first video decoding frame in the video code stream.
The method according to any one of claims 5 to 7, wherein the first image decoding data and the second image decoding data are blended according to the first field encoding instruction to obtain a blending image, include:

If the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame is in the video code stream, the second video decoding frame is present, and the second video decoding frame is in the And appearing in the first video decoding frame, and the decoded output order of the first image decoding data and the second image decoding data are adjacent to each other, and the first image decoding data and the The second image decoding data is blended to obtain a blended image;

or;

If the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame appears before the first video decoding frame in the video code stream, and the second video decoding frame is in the The video code stream appears before the first video decoding frame, and the decoded output order of the first image decoded data and the second image decoded data are adjacent to each other, and the first image decoded data and the The second image decoded data is blended to obtain a blended image.
A method according to any one of claims 5 to 7, wherein

The second video decoding frame includes a second field coding indication, the second field coding indication indicates that the second video decoding frame is a video decoding frame corresponding to single field image data, and the second field coding indication further indicates The single field image data included in the second video decoding frame is top field image data or bottom field image data, and the second field encoding indication further indicates the same of the second video decoding frame and the second video decoding frame. The order in which the source video decoded frames appear in the video stream;

And the blending the first image decoding data and the second image decoding data according to the first field encoding instruction to obtain a blending image, comprising: according to the first field encoding indication and the second field encoding indication And blending the first image decoded data and the second image decoded data to obtain a blended image.
The method according to claim 9, wherein said first image decoding data and said second image are decoded according to said first field encoding indication and said second field encoding indication The code data is blended to obtain a blended image, including:

If the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame is in the video code stream and then appears in the first video decoding frame, and the first field coding indication further indicates The single field image data included in the first video decoding frame is top field image data, and the second field encoding indication indicates that the homologous video decoding frame of the second video decoding frame precedes the video code stream. The second video decoding frame is generated, and the second field encoding indication further indicates that the single field image data included in the second video decoding frame is bottom field image data, and the second video decoding frame is in the video And appearing in the first video decoding frame, and the decoded output order of the first image decoding data and the second image decoding data are adjacent to each other, and the first image decoding data and the first The two image decoding data are blended to obtain a blended image;

or;

And if the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame appears before the first video decoding frame in the video code stream, and the first field coding indication further indicates The single field image data included in the first video decoding frame is top field image data, and the second field encoding indication indicates that the homologous video decoding frame of the second video decoding frame is in the video code stream. The second video decoding frame is generated, and the second field encoding indication further indicates that the single field image data included in the second video decoding frame is bottom field image data, and the second video decoding frame is in the video And appearing in the code stream before the first video decoding frame, and the decoded output order of the first image decoding data and the second image decoding data are adjacent to each other, and the first image decoding data and the first The two image decoding data are blended to obtain a blended image;

or;

If the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame is in the video code stream and then appears in the first video decoding frame, and the first field coding indication further indicates The single field image data included in the first video decoding frame is bottom field image data, and the second field encoding indication indicates that the homologous video decoding frame of the second video decoding frame precedes the video code stream. The second video decoding frame is generated, and the second field encoding indication further indicates that the single field image data included in the second video decoding frame is top field image data, and the second video decoding frame is in the video And appearing in the first video decoding frame, and the decoded output order of the first image decoding data and the second image decoding data are adjacent to each other, and the first image decoding data and the first The two image decoding data are blended to obtain a blended image;

or;

And if the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame appears before the first video decoding frame in the video code stream, and the first field coding indication further indicates The single field image data included in the first video decoding frame is bottom field image data, and the second field encoding indication indicates that the homologous video decoding frame of the second video decoding frame is in the video code stream. The second video decoding frame is generated, and the second field encoding indication further indicates that the single field image data included in the second video decoding frame is top field image data, and the second video decoding frame is in the video And appearing in the code stream before the first video decoding frame, and the decoded output order of the first image decoding data and the second image decoding data are adjacent to each other, and the first image decoding data and the first The two image decoded data are blended to obtain a blended image.
A video encoding apparatus, comprising:

An acquisition unit for acquiring an image;

a coding unit, configured to video encode the first field image data of the image to obtain a first video coding frame, and perform video coding on the second field image data of the image to obtain a second video coding frame;

a writing unit, configured to write the first video encoding frame and the second video encoding frame into a video code stream;

The first video coding frame includes a first field coding indication, and the first field coding indication indicates that the first video coding frame is a video coding frame corresponding to single field image data, and the first field coding indication is further Instructing the first video encoding frame to include single field image data as top field image data or bottom field image data, the first field encoding indication further indicating the first video encoding frame and the second video encoding frame a sequence of occurrences in the video stream;

The first field image data is top field image data, and the second field image data is bottom field image data, or the second field image data is top field image data, and the first field image is The data is bottom field image data.
A video encoding apparatus according to claim 11, wherein

The first field coding indication includes a first indication parameter and a second indication parameter;

The first indication parameter indicates that the first video coding frame is a video coding frame corresponding to single field image data, and the first indication parameter further indicates that the single video image data included in the first video coding frame is top. Field image data or bottom field image data;

The second indication parameter indicates a sequence in which the first video coding frame and the second video coding frame appear in the video code stream.
The video encoding apparatus according to claim 11, wherein the first field coding indication comprises a third indication parameter, a fourth indication parameter, and a second indication parameter;

The third indication parameter indicates that the first video coding frame is a video coding frame corresponding to single field image data;

The fourth indication parameter indicates that the single field image data included in the first video coding frame is top field image data or bottom field image data;

The second indication parameter indicates a sequence in which the first video coding frame and the second video coding frame appear in the video code stream.
The video encoding apparatus according to any one of claims 11 to 13, wherein the second video encoding frame includes a second field encoding indication, and the second field encoding indication indicates that the second video encoding frame is a video encoding frame corresponding to the single field image data, the second field encoding indication further indicating that the single field image data included in the second video encoding frame is bottom field image data or top field image data, and the second field encoding indication A sequence of occurrences of the second video encoded frame and the first video encoded frame in the video bitstream is also indicated.
A video decoding device, comprising:

a decoding unit, configured to perform video decoding on the first video decoding frame in the video code stream to obtain first image decoding data, and perform video decoding on the second video decoding frame in the video code stream to obtain second image decoding data. Wherein the first video decoding frame includes a first field coding indication, the first field coding indication indicating that the first video decoding frame is a video decoding frame corresponding to single field image data, and the first field coding indication Also indicating that the single field image data included in the first video decoding frame is top field image data or bottom field image data, and the first field encoding indication further indicates the first video decoding frame and the first video decoding An order in which the homogenous video decoded frames of the frame appear in the video bitstream; wherein the first video decoded frame and the homogenous video decoded frame are obtained based on image data of different fields of the same image;

And a blending unit, configured to blend the first image decoded data and the second image decoded data according to the first field encoding instruction to obtain a blended image.
A video decoding apparatus according to claim 15, wherein:

The first field coding indication includes a third indication parameter, a fourth indication parameter, and a second indication parameter number;

The third indication parameter indicates that the first video decoding frame is a video decoding frame corresponding to single field image data;

The fourth indication parameter indicates that the single field image data included in the first video decoding frame is top field image data or bottom field image data;

The second indication parameter indicates an order of appearance of the homologous video decoding frame of the first video decoding frame and the first video decoding frame in the video code stream.
The video decoding device according to claim 15, wherein the first field coding indication comprises a third indication parameter, a fourth indication parameter and a second indication parameter;

The third indication parameter indicates that the first video decoding frame is a video decoding frame corresponding to single field image data;

The fourth indication parameter indicates that the single field image data included in the first video decoding frame is top field image data or bottom field image data;

The second indication parameter indicates that a homogenous video decoding frame of the first video decoding frame appears before the first video decoding frame in the video code stream.
A video decoding apparatus according to any one of claims 15 to 17, wherein

The aggregating unit is configured to: if the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame is in the video code stream, and then appears in the first video decoding frame, and The second video decoding frame is present in the video code stream after the first video decoding frame, and the decoded output order of the first image decoding data and the second image decoding data are adjacent to each other. The first image decoded data and the second image decoded data are blended to obtain a blended image;

or;

If the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame appears before the first video decoding frame in the video code stream, and the second video decoding frame is in the The video code stream appears before the first video decoding frame, and the decoded output order of the first image decoded data and the second image decoded data are adjacent to each other, and the first image decoded data and the The second image decoded data is blended to obtain a blended image.
A video decoding apparatus according to any one of claims 15 to 17, wherein

The second video decoding frame includes a second field encoding indication, the second field encoding indication indicates that the second video decoding frame is a video decoding frame corresponding to single field image data, and the second field encoding index The indication further indicates that the single field image data included in the second video decoding frame is top field image data or bottom field image data, and the second field encoding indication further indicates the second video decoding frame and the second video The order in which the homologous video decoded frames of the decoded frame appear in the video bitstream;

The aggregating unit is configured to perform the blending of the first image decoding data and the second image decoding data according to the first field encoding instruction and the second field encoding instruction to obtain a blending image.
A video decoding apparatus according to claim 19, wherein

The aggregating unit is configured to: if the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame is in the video code stream, and then appears in the first video decoding frame, and The first field coding indication further indicates that the single field image data included in the first video decoding frame is top field image data, and the second field coding indication indicates that the same video decoding frame of the second video decoding frame is The video code stream appears before the second video decoding frame, and the second field coding indication further indicates that the single field image data included in the second video decoding frame is bottom field image data, and the Two video decoding frames appear in the first video decoding frame in the video code stream, and the decoded output order of the first image decoding data and the second image decoding data are adjacent to each other, An image decoded data and the second image decoded data are blended to obtain a blended image;

or;

And if the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame appears before the first video decoding frame in the video code stream, and the first field coding indication further indicates The single field image data included in the first video decoding frame is top field image data, and the second field encoding indication indicates that the homologous video decoding frame of the second video decoding frame is in the video code stream. The second video decoding frame is generated, and the second field encoding indication further indicates that the single field image data included in the second video decoding frame is bottom field image data, and the second video decoding frame is in the video And appearing in the code stream before the first video decoding frame, and the decoded output order of the first image decoding data and the second image decoding data are adjacent to each other, and the first image decoding data and the first The two image decoding data are blended to obtain a blended image;

or;

If the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame is in the video code stream and then appears in the first video decoding frame, and the first field coding indication further indicates The single field image data included in the first video decoding frame is bottom field image data, and the second field Encoding instructions indicating that a homogenous video decoded frame of the second video decoded frame precedes the second video decoded frame in the video bitstream, and the second field encoding indication further indicates the second video decoding The single field image data contained in the frame is top field image data, and the second video decoded frame appears in the video code stream after the first video decoded frame, and the first image decoded data and the The decoded output sequence of the second image decoded data is adjacent to each other, and the first image decoded data and the second image decoded data are blended to obtain a blended image;

or;

And if the first field coding indication indicates that the homogenous video decoding frame of the first video decoding frame appears before the first video decoding frame in the video code stream, and the first field coding indication further indicates The single field image data included in the first video decoding frame is bottom field image data, and the second field encoding indication indicates that the homologous video decoding frame of the second video decoding frame is in the video code stream. The second video decoding frame is generated, and the second field encoding indication further indicates that the single field image data included in the second video decoding frame is top field image data, and the second video decoding frame is in the video And appearing in the code stream before the first video decoding frame, and the decoded output order of the first image decoding data and the second image decoding data are adjacent to each other, and the first image decoding data and the first The two image decoded data are blended to obtain a blended image.