WO2018049631A1

WO2018049631A1 - Playback device and playback method thereof

Info

Publication number: WO2018049631A1
Application number: PCT/CN2016/099126
Authority: WO
Inventors: 徐培辰
Original assignee: 深圳市柔宇科技有限公司
Priority date: 2016-09-14
Filing date: 2016-09-14
Publication date: 2018-03-22
Also published as: CN108064448A

Abstract

The invention relates to a playback device and a playback method thereof, and relates to the display playback field. The device comprises: a screenshot unit, configured to acquire at least one first frame in a video file; an information processing unit, configured to perform image comparison processing according to the first frame to acquire first comparison information; an acquisition unit, configured to acquire first format information according to the first comparison information; and a playback unit, configured to switch a playback mode to a three-dimensional playback mode for playback when a video format is determined to be a three-dimensional video format according to the first format information, and switch the playback mode to a two-dimensional playback mode for playback when the video format is determined to be a two-dimensional video format according to the first format information. The invention further provides a playback method applicable to the playback device. The invention can quickly recognize video format information and automatically switch a playback mode, resolving a problem of determining a playback mode of an online video file.

Description

Play device and play method thereof

Technical field

The present invention relates to the field of play display, and in particular to a play device and a play method thereof.

Background technique

At present, three-dimensional digital technology is applied to devices such as theater screens, home TVs, and head-mounted displays to enable viewers to enjoy stereoscopic three-dimensional display effects. The video file playback format is no longer limited to the plane, and the three-dimensional display effect makes the viewer feel more immersive when watching the movie. The existing three-dimensional digital technology has a wide variety of basic principles. The left and right human eyes respectively receive different images, and then the image information is superimposed and regenerated by the brain to form an image with a stereoscopic effect.

When the playback device plays a video file, the page of the video file list in the device system is usually a flat graphic. When the selected 3D video file is played and the direct conversion between the 2D video file and the 3D video file is performed, both are involved in 2D. / 3D display switching problem. Usually, the two-dimensional/three-dimensional display is switched by using a button, but an external button structure needs to be set, which increases the manufacturing process and production cost of the display device.

In the prior art, the key operation structure is removed to realize the automatic switching of the two-dimensional/three-dimensional playback mode, and a large number of screenshots are intercepted from the target video file to determine the format information, and the similarity between the left and right split screens or the upper and lower split screens of each screenshot is respectively compared. . Each of the similarities is low, and is determined to be a two-dimensional video file; each of the similarities is high, and is determined to be a three-dimensional video file. The process of intercepting a large number of screenshots requires a lot of time, affects the recognition speed, and consumes a large amount of memory of the device, and has a large limitation when applied to mobile devices. Moreover, the method for judging the video format information of a plurality of screenshots for split-screen comparison cannot be applied to the online video file. Since the video data is not buffered before the online video file is played, a large number of samples cannot be obtained in advance, and thus it is impossible to perform three-dimensional Video file determination.

Summary of the invention

Embodiments of the present invention provide a playback device capable of quickly identifying video format information and automatically switching a play mode, and a playback method thereof.

According to an aspect of the present invention, a playback device is provided, the playback device includes: a screenshot unit, configured to acquire at least one first frame in a video file, where the first frame is any one of the video files; a processing unit, configured to perform image comparison processing to obtain first comparison information according to the first frame acquired by the screenshot unit, and an acquiring unit, configured to analyze, according to the first comparison information acquired by the information processing unit Acquiring the first format information; the playing unit is configured to: when the video file is determined to be a three-dimensional video format according to the first format information acquired by the acquiring unit, the playing mode of the playing device is switched to a three-dimensional playing mode, and The three-dimensional playback mode plays the video file; when the video file is determined to be a two-dimensional video format according to the first format information acquired by the acquiring unit, the playback mode of the playback device is switched to a two-dimensional playback mode. And playing the video file through the two-dimensional play mode.

According to another aspect of the present invention, a playback method is provided, the playback method includes: a playback device acquiring at least one first frame in a video file, where the first frame is any one of the video files; The first frame performs image comparison processing to obtain first alignment information; and the first format information is obtained according to the first comparison information analysis; and when the video file is determined to be a three-dimensional video format according to the first format information, The playing mode of the playing device is switched to the three-dimensional playing mode, and the video file is played by the three-dimensional playing mode; and the playing mode of the playing device is determined when the video file is determined to be a two-dimensional video format according to the first format information. Switching to a two-dimensional playback mode and playing the video file through the two-dimensional playback mode.

The present invention provides a playback device and a playback method thereof, which can acquire at least one frame in a video file before and after playback, and perform image comparison processing on the captured frame image to obtain comparison information, when the comparison information is in advance Determine the video format information in the range of values as a 3D video file, broadcast The playback mode of the playback device is switched to the three-dimensional playback mode, and the video file is played through the three-dimensional playback mode; when the comparison information is outside the preset value range, the video format information is determined to be a two-dimensional video file, and the playback mode of the playback device is switched to two-dimensional playback. Mode and play video files in 2D playback mode. Therefore, the video format information is quickly recognized to automatically switch the play mode, and when the captured image is at least two frames and the determined format information is consistent, the corresponding determination result video file is stored in the corresponding cache unit, and the direct play is not determined again. It speeds up the speed and smoothness of the 2D/3D automatic switching of the playback mode during video file playback, and solves the problem of determining the online video file playback mode.

DRAWINGS

The following figures are used to describe various embodiments of the invention in detail in conjunction with the specific embodiments. It should be understood that the various elements of the present invention are not to be construed as a

1 is a structural diagram of a playback device according to a preferred embodiment of the present invention;

2 is a structural diagram of a playback device according to another embodiment of the present invention;

3 is a structural diagram of a playback device according to another embodiment of the present invention;

4 is a flowchart of a playing method according to a preferred embodiment of the present invention;

FIG. 5 is a flowchart of a playing method according to another embodiment of the present invention; FIG.

6 is a schematic diagram of image comparison processing in the playback method of FIG. 5;

FIG. 7 is a flowchart of a playing method according to another embodiment of the present invention.

detailed description

The present invention will be further described in detail below with reference to a plurality of embodiments and the accompanying drawings. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

An embodiment of the present invention provides a playback device. Referring to FIG. 1, FIG. 1 is a structural diagram of a playback device according to a preferred embodiment of the present invention. The playback device includes:

10: A screenshot unit, configured to acquire at least one first frame in the video file, where the first frame is any one of the video files. Preferably, the time for the playback device to acquire at least one first frame may be before the video file is saved after the video file is stored, or may be started when the video file starts playing after the video file is stored, or when the video file starts to be played. When.

11: An information processing unit, configured to perform image comparison processing according to the first frame acquired by the screenshot unit to obtain the first comparison information. The first frame is divided into a first area and a second area by using a first line, and the first area is compared with the image in the second area to obtain first alignment information, that is, the image in the first area and the image in the second area Similarity, methods of comparing the first region and the second region image include, but are not limited to, image grayscale, feature point based image similarity calculation method, histogram matching method, and the like.

The acquiring unit is configured to obtain the first format information according to the first comparison information acquired by the information processing unit.

The preset value range set in the obtaining unit is 0-1, 0 means that the first area and the second area image are completely dissimilar, and 1 means that the first area and the second area image are identical. The acquiring unit includes a first preset value and a second preset value, where the first preset value is smaller than the second preset value, the first preset value is greater than 0, and the second preset value is less than 1. When the first comparison information is greater than 0 and less than the first preset value, the obtained first format information determines that the video file is a two-dimensional video format; when the first comparison information is greater than or equal to the first preset value less than 1, the first The image in the area is not completely the same as the image in the second area, and the obtained first format information determines that the video file is in a three-dimensional video format. More preferably, when the first comparison information is greater than or equal to the first preset value, the second preset is less than or equal to the second preset. When the value is obtained, the obtained first format information determines that the video file is in a three-dimensional video format. In order to obtain better technical effects, the first preset value may be set to 0.8; the second preset value is 0.9, and the first comparison information is greater than 0.8 and less than or equal to 0.9. The first format information obtained at the time determines that the video file is in a three-dimensional video format.

13: A playing unit, configured to switch a play mode according to a video format determined by the first format information acquired by the acquiring unit. When the playing unit determines that the video file is in the three-dimensional video format according to the first format information acquired by the obtaining unit, the playing mode of the playing device is switched to the three-dimensional playing mode, and the video file is played through the three-dimensional playing mode; the first format information acquired according to the acquiring unit When the video file is determined to be in the two-dimensional video format, the playback mode of the playback device is switched to the two-dimensional playback mode, and the video file is played through the two-dimensional playback mode.

Referring to FIG. 2, FIG. 2 is a structural diagram of a playback device according to another embodiment of the present invention. The device includes:

20: A storage unit, configured to store the first video file. After the first video file is input to the playback device, the video format recognition is started before it is played.

21: A screenshot unit, configured to acquire at least one first frame according to the first video file stored by the storage unit, where the first frame is any one of the first video files. Before the first video file is played, any frame is intercepted from the first video file by the screenshot unit as the first frame.

22: An information processing unit, configured to perform image comparison processing according to the first frame acquired by the screenshot unit to obtain the first comparison information.

The information processing unit performs image comparison processing by using the left and right split screen processing modes, and acquires the first left and right split screen similarity according to the comparison of the left and right split screen image information; and obtains the second left and right split screen similarity according to the corresponding partial image information of the left and right split screens. And obtaining the third left and right split screen similarity according to the image information of the different areas of the single side screen. The first comparison information is obtained according to the first left and right split screen similarity, the second left and right split screen similarity, and the third left and right split screen similarity. The comparison information of any one frame is composed of the first left and right split screen similarity, the second left and right split screen similarity, and the third left and right split screen similarity.

Specifically, the first frame is divided into a first area and a second area by using a first line, where the edge of the first area is located in the left split screen or coincides with the left split screen, and the edge of the second area is set in the right split screen or right Split screen Hehe. Comparing the images in the first area and the second area to obtain the first left and right split screen similarity, that is, the image similarity between the image in the first area and the second area. A third area is selected in the first area, the edge of the third area is set in the first area, and the fourth area is selected in the second area, and the edge of the fourth area is set in the second area, and the third area is opposite The position of the first area is the same as or similar to the position of the fourth area relative to the second area, and the third area is compared with the fourth area to obtain the second left and right split screen similarity. a fifth area and a sixth area are selected in the first area, the fifth area edge is set in the first area, the sixth area edge is set in the first area, and the fifth area and the sixth area are not intersected, The five regions and the sixth region are compared to obtain the third left and right split screen similarity. Methods of aligning the above-described area images include, but are not limited to, image gradation, feature point-based image similarity calculation methods, histogram matching methods, and the like. The first comparison information is obtained according to the first left and right split screen similarity, the second left and right split screen similarity, and the third left and right split screen similarity.

And a obtaining unit, configured to obtain the first format information according to the first comparison information acquired by the information processing unit.

The preset value range set in the obtaining unit is 0-1, 0 means that the first area and the second area image are completely dissimilar, and 1 means that the first area and the second area image are identical. The acquiring unit includes a first preset value and a second preset value, where the first preset value is smaller than the second preset value, the first preset value is greater than 0, and the second preset value is less than 1. When the first comparison information is greater than 0 and less than the first preset value, the obtained first format information determines that the video file is a two-dimensional video format; when the first comparison information is greater than or equal to the first preset value less than 1, the first The image in the area is not completely the same as the image in the second area, and the obtained first format information determines that the video file is in a three-dimensional video format. More preferably, when the first comparison information is greater than or equal to the first preset value, the second preset is less than or equal to the second preset. When the value is obtained, the obtained first format information determines that the video file is in a three-dimensional video format. In order to obtain a better technical effect, the first preset value may be set to 0.8; the second preset value is 0.9, and the first format information obtained when the first comparison information is greater than 0.8 or less than 0.9 is determined to be a three-dimensional video. format.

More preferably, the first comparison information is obtained by the first left and right split screen similarity, the second left and right split screen similarity, and the third left and right split screen similarity. The acquiring unit further includes a first similar condition and a second similar condition, where the first similar condition includes that the first left and right split screen similarity is not less than the first preset value and the second left and right split screen similarity is not less than the first preset value and The third left and right split screen similarity is less than the second preset value; the second similar condition includes that the first left and right split screen similarity is not less than the second preset value and the second left and right split screen similarity is not less than the second preset value and the first The similarity of the three left and right split screens is smaller than the second preset value. The first format information obtained when the first comparison information satisfies the first similar condition determines that the first video file is a three-dimensional video format. More preferably, the first format information obtained when the first comparison information satisfies the second similar condition determines that the first video file is a three-dimensional video format, and the accuracy is higher.

24: The receiving unit is configured to receive the first video file playing instruction to play the first video file that has been stored in the storage unit.

25: A screenshot unit, configured to acquire at least one second frame in the first video file that has been played, and the second frame is any frame other than the first frame. When the first video file starts playing, any frame other than the first frame is randomly intercepted from the first video file by the screenshot unit as the second frame.

26: An information processing unit, configured to perform second image matching processing according to the second frame acquired by the screenshot unit to obtain second comparison information.

The information processing unit performs image comparison processing by using the left and right split screen processing modes, and acquires the first left and right split screen similarity according to the comparison of the left and right split screen image information; and obtains the second left and right split screen similarity according to the corresponding partial image information of the left and right split screens. And obtaining the third left and right split screen similarity according to the image information of the different areas of the single side screen. The second comparison information is obtained according to the first left and right split screen similarity, the second left and right split screen similarity, and the third left and right split screen similarity. The comparison information of any one frame is composed of the first left and right split screen similarity, the second left and right split screen similarity, and the third left and right split screen similarity.

An acquisition unit, configured to obtain second format information according to the second comparison information acquired by the information processing unit.

When the video file is played, the obtaining unit determines the video format of the first video file by comparing the second comparison information with the preset value. And confirming the video format of the first video file according to the first format information acquired before the first video file is played and the second format information obtained when the first video file is played. If the first format information is the same as the second format information, determining a video format of the first video file, if the first format information is different from the second format information, and intercepting the first video file except the first frame and the second frame Any frame is determined by the information processing unit and the acquisition unit to obtain the format information.

More preferably, the first comparison information satisfies the first format information acquired when the first similar condition is satisfied, and the second comparison information satisfies the second format information acquired when the first similar condition is satisfied, and determines that the first video file is a three-dimensional video format. More preferably, when both the first comparison information and the second comparison information satisfy the first similar condition, at least one of the first comparison information or the second comparison information satisfies a second similar condition, and the first video file is determined to be three-dimensional. Video format with higher accuracy. More preferably, the first comparison information satisfies the first format information acquired when the second similar condition is satisfied, and the second comparison information satisfies the second format information obtained when the second similar condition is satisfied, and determines that the first video file is a three-dimensional video format. And the accuracy is higher.

28: The playing unit is configured to switch the play mode according to the first format information acquired by the obtaining unit and the video format determined by the second format information. When the playing unit determines that the first video file is in the three-dimensional video format according to the first format information and the second format information acquired by the acquiring unit, the playing mode of the playing device is switched to the three-dimensional playing mode, and the first video file is played through the three-dimensional playing mode; And determining, according to the first format information and the second format information acquired by the acquiring unit, that the first video file is in the two-dimensional video format, the playing mode of the playing device is switched to the two-dimensional playing mode, and the first video file is played through the two-dimensional playing mode.

29: 3D video file buffer unit and 2D video file buffer unit. a 3D video file buffering unit, configured to determine, according to the first format information and the second format information acquired by the obtaining unit When a video file is in a three-dimensional video format, the first video file is stored. The two-dimensional video file buffering unit is configured to store the first video file when the first video file is determined to be a two-dimensional video format according to the first format information and the second format information acquired by the obtaining unit.

Referring to FIG. 3, FIG. 3 is a structural diagram of a playback device according to another embodiment of the present invention. The device includes:

30: A storage unit, configured to store the second video file. After the second video file is input to the playback device, the video format recognition is started before it is played.

31: A screenshot unit, configured to acquire at least one third frame and a fourth frame according to the second video file stored by the storage unit, where the third frame and the fourth frame are any two different frames in the second video file. Before the second video file is played, any two different frames are intercepted from the second video file by the screenshot unit as the third frame and the fourth frame.

32: An information processing unit, configured to perform third image matching processing according to the third frame acquired by the screenshot unit to obtain third comparison information, and perform image comparison processing according to the fourth frame to obtain fourth comparison information. The information processing unit performs image comparison processing by using the upper and lower split screen processing modes, and obtains the first upper and lower split screen similarity according to the upper and lower split screen image information; and obtains the second upper and lower split screen similarity according to the corresponding partial image information corresponding to the upper and lower split screens. Obtaining the third upper and lower split screen similarity according to the image information of the different areas of the single side screen; obtaining the third comparison information according to the first upper and lower split screen similarity, the second upper and lower split screen similarity, and the third upper and lower split screen similarity And the fourth comparison information.

And a obtaining unit, configured to obtain the third format information according to the third comparison information acquired by the information processing unit, and obtain the fourth format information according to the fourth comparison information acquired by the information processing unit. The acquiring unit before the video file is played determines the video format of the second video file through the third frame and the fourth frame. And confirming the video format of the second video file according to the third format information and the fourth format information acquired before the second video file is played. Determining a video format of the second video file if the third format information is the same as the fourth format information, if the third format information is different from the fourth format information, Any one of the frames other than the third frame and the fourth frame is intercepted for comparison determination.

34: 3D video file buffer unit and 2D video file buffer unit. The 3D video file buffering unit is configured to store the second video file when the second video file is determined to be a three-dimensional video format according to the third format information and the fourth format information acquired by the obtaining unit. The two-dimensional video file buffering unit is configured to store the second video file when the second video file is determined to be a two-dimensional video format according to the third format information and the fourth format information acquired by the obtaining unit.

The embodiment of the present invention further provides a playing method. Referring to FIG. 4, FIG. 4 is a flowchart of a playing method according to a preferred embodiment of the present invention. The playback method is:

S100: The playback device acquires at least one first frame in the video file, where the first frame is any one of the video files.

S101: Perform image comparison processing according to the first frame to obtain first comparison information. The first frame is divided into a first area and a second area by using a first line, and the first area is compared with the image in the second area to obtain first alignment information, that is, the image in the first area and the image in the second area Similarity, methods of comparing the first region and the second region image include, but are not limited to, image grayscale, feature point based image similarity calculation method, histogram matching method, and the like.

S102: Acquire first format information according to the first comparison information analysis.

The preset value range set in the obtaining unit is 0-1, 0 means that the first area and the second area image are completely dissimilar, and 1 means that the first area and the second area image are identical. The acquiring unit includes a first preset value and a second preset value, where the first preset value is smaller than the second preset value, the first preset value is greater than 0, and the second preset value is less than 1. When the first comparison information is greater than 0 and less than the first preset value, the obtained first format information determines that the video file is a two-dimensional video format; when the first comparison information is greater than or equal to the first preset value less than 1, the first The image in the area is not completely the same as the image in the second area, and the obtained first format information determines that the video file is in a three-dimensional video format. More preferably, when the first comparison information is greater than or equal to the first preset value, the second preset is less than or equal to the second preset. The first format obtained when the value is obtained The information determines that the video file is in a three-dimensional video format. In order to obtain a better technical effect, the first preset value may be set to 0.8; the second preset value is 0.9, and the first format information obtained when the first comparison information is greater than 0.8 or less than 0.9 is determined to be a three-dimensional video. format.

S103: Switch the play mode according to the video format determined by the first format information. When the video format of the video file is determined to be a three-dimensional video format according to the first format information, the playback mode of the playback device is switched to the three-dimensional playback mode, and the video file is played through the three-dimensional playback mode; and the video format of the video file is determined according to the first format information. In the video format, the playback mode of the playback device is switched to the two-dimensional playback mode, and the video file is played through the two-dimensional playback mode.

5 and FIG. 6, FIG. 5 is a flowchart of a playing method according to another embodiment of the present invention; and FIG. 6 is a schematic diagram of image matching processing in the playing method of FIG. The playback method is:

S200: The playback device stores the first video file. After the first video file is input to the playback device, the video format recognition is started before it is played.

S201: The playback device acquires at least one first frame in the first video file, where the first frame is any one of the first video files.

S202: Perform image comparison processing according to the first frame to obtain first comparison information.

The first frame is divided into a first area and a second area by using a first line, and the first area is compared with the image in the second area to obtain first alignment information, that is, the image in the first area and the image in the second area Similarity, methods of comparing the first region and the second region image include, but are not limited to, image grayscale, feature point based image similarity calculation method, histogram matching method, and the like.

As shown in FIG. 6, the image comparison processing includes a left and right split screen processing mode, that is, the first area A1 and the second area A2 are divided into left and right screens. The first area A1 and the second area A2 are compared to obtain the first left and right split screen similarity; the third area B1 is selected in the first area A1, and the edge of the third area B1 is set in the first area A1, and the second A fourth area B2 is selected in the area A2, and an edge of the fourth area B2 is set in the second area A2, and a position of the third area B1 is opposite to the first area A1. The position of the second area B2 is the same as or similar to that of the fourth area B2, and the third area B1 and the fourth area B2 are compared to obtain the second left and right split screen similarity, so as to avoid the first frame intercepted in the two-dimensional video file. The image of the first area A1 and the second area A2 are very similarly misidentified into a three-dimensional video format; a fifth area C1 and a sixth area C2 are selected in the first area A1, and the edge of the fifth area C1 is set in the first area. In A1, the sixth region C2 edge is set in the first region A1, and the fifth region C1 and the sixth region C2 do not intersect, and the fifth region C1 and the sixth region C2 are compared to obtain the third left and right split screen similarity. In order to avoid the interception of the first frame as a solid color picture, the video format determination error is caused. The first comparison information is obtained according to the first left and right split screen similarity, the second left and right split screen similarity, and the third left and right split screen similarity. The comparison information of any one frame is composed of the first left and right split screen similarity, the second left and right split screen similarity, and the third left and right split screen similarity.

S203: Acquire first format information according to the first comparison information analysis.

More preferably, the first comparison information is obtained by the first left and right split screen similarity, the second left and right split screen similarity, and the third left and right split screen similarity. The acquisition unit also includes the first similar condition and the first The second similar condition, the first similar condition includes that the first left and right split screen similarity is not less than the first preset value, and the second left and right split screen similarity is not less than the first preset value, and the third left and right split screen similarity is less than the second preset Setting a value; the second similar condition includes that the first left and right split screen similarity is not less than the second preset value, and the second left and right split screen similarity is not less than the second preset value and the third left and right split screen similarity is less than the second preset value. The first format information obtained when the first comparison information satisfies the first similar condition determines that the first video file is a three-dimensional video format. More preferably, the first format information obtained when the first comparison information satisfies the second similar condition determines that the first video file is a three-dimensional video format, and the accuracy is higher.

S204: The playing device receives the first video file playing instruction to play the first video file.

S205: Acquire at least one second frame in the first video file, where the second frame is any frame other than the first frame in the first video file. When the first video file starts playing, any frame other than the first frame is randomly intercepted from the first video file as the second frame.

S206: Perform image comparison processing according to the second frame to obtain second alignment information. The image comparison processing includes a left and right split screen processing mode; the first left and right split screen similarity is obtained according to the comparison left and right split screen image information; and the second left and right split screen similarity is obtained according to the comparison of the partial left and right split screen corresponding partial image information; The image information of different areas of the single side screen acquires the similarity of the third left and right split screens. The second comparison information is obtained according to the first left and right split screen similarity, the second left and right split screen similarity, and the third left and right split screen similarity. The comparison information of any one frame is composed of the first left and right split screen similarity, the second left and right split screen similarity, and the third left and right split screen similarity.

S207: Acquire second format information according to the second comparison information analysis.

When the video file is played, the video format of the first video file is determined by comparing the second comparison information with the preset value. And confirming the video format of the first video file according to the first format information acquired before the first video file is played and the second format information obtained when the first video file is played. If the first format information is the same as the second format information, determining a video format of the first video file, if the first format information is different from the second format information, and intercepting the first frame and the second frame in the first video file Any frame other than the frame is further analyzed by the information processing unit and the acquisition unit to obtain the format information.

S208: Switch the play mode according to the video format determined by the first format information and the second format information. When determining that the first video file is in the three-dimensional video format according to the first format information and the second format information, the playing mode of the playing device is switched to the three-dimensional playing mode, and the first video file is played through the three-dimensional playing mode; according to the first format information and the second When the format information determines that the first video file is in the two-dimensional video format, the playback mode of the playback device is switched to the two-dimensional playback mode, and the first video file is played through the two-dimensional playback mode.

S209: The video format determined according to the first format information and the second format information is stored in the three-dimensional video file buffer unit or the two-dimensional video file buffer unit. And determining, according to the first format information and the second format information, that the first video file is in the three-dimensional video format, storing the first video file in the three-dimensional video file buffer unit; determining, according to the first format information and the second format information, that the first video file is In the two-dimensional video format, the first video file is stored in the two-dimensional video file cache unit.

Referring to FIG. 7, FIG. 7 is a flowchart of a playing method according to another embodiment of the present invention. The playback method is:

S300: The playback device stores the second video file. After the first video file is input to the playback device, the video format recognition is started before it is played.

S301: The playback device acquires at least one third frame and a fourth frame in the second video file, where the third frame and the fourth frame are any two different frames in the second video file.

S302: Perform image comparison processing according to the third frame to obtain third alignment information, and perform image comparison processing according to the fourth frame to obtain fourth comparison information. The image comparison processing includes an upper and lower split screen processing mode; the first upper and lower split screen similarities are obtained according to the comparison upper and lower split screen image information; and the second upper and lower split screen similarities are obtained according to the corresponding upper and lower split screen corresponding partial image information; The image information of different areas of the single-sided screen acquires the similarity of the third upper and lower split screens; and the third comparison information and the fourth ratio are obtained according to the first upper and lower split screen similarity, the second upper and lower split screen similarity, and the third upper and lower split screen similarity For information.

S303: Acquire third format information according to the third comparison information analysis, and obtain fourth format information according to the fourth comparison information analysis. The video format of the second video file is determined by the third frame and the fourth frame before the video file is played. And confirming the video format of the second video file according to the third format information and the fourth format information acquired before the second video file is played. Determining a video format of the second video file if the third format information is the same as the fourth format information, and if the third format information is different from the fourth format information, intercepting any frame other than the third frame and the fourth frame Comparison judgment.

S304: The video format determined according to the third format information and the fourth format information is stored in the three-dimensional video file buffer unit or the two-dimensional video file buffer unit. And determining, according to the third format information and the fourth format information, that the second video file is in the three-dimensional video format, storing the second video file in the three-dimensional video file buffer unit; and determining the second video file according to the third format information and the fourth format information. When in the two-dimensional video format, the second video file is stored in the two-dimensional video file cache unit.

The present invention provides a playback device and a playback method thereof, which can acquire at least one frame in a video file before and after playback, and perform image comparison processing on the captured image of the frame to obtain comparison information, when the comparison information is The video format information is determined to be a three-dimensional video file in a preset range, and the playback mode of the playback device is switched to a three-dimensional playback mode, and the video file is played through the three-dimensional playback mode; when the comparison information is in a preset value range, the video format information is determined to be two. Dimensional video files, The playback mode of the playback device is switched to the two-dimensional playback mode, and the video file is played through the two-dimensional playback mode. Therefore, the video format information is quickly recognized to automatically switch the play mode, and when the captured image is at least two frames and the determined format information is consistent, the corresponding determination result video file is stored in the corresponding cache unit, and the direct play is not determined again. It speeds up the speed and smoothness of the 2D/3D automatic switching of the playback mode during video file playback, and solves the problem of determining the online video file playback mode.

The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalents, and improvements made within the spirit and scope of the present invention should be included in the scope of the present invention. Inside.

Claims

A playback device, characterized in that

a screenshot unit, configured to acquire at least one first frame in the video file, where the first frame is any one of the video files;

An information processing unit, configured to perform image comparison processing according to the first frame acquired by the screenshot unit to obtain first comparison information;

An obtaining unit, configured to obtain first format information according to the first comparison information acquired by the information processing unit;

a playing unit, configured to: when the video file is determined to be a three-dimensional video format according to the first format information acquired by the acquiring unit, the playing mode of the playing device is switched to a three-dimensional playing mode, and played by the three-dimensional playing mode The video file; when the video file is determined to be a two-dimensional video format according to the first format information acquired by the acquiring unit, the playing mode of the playing device is switched to a two-dimensional playing mode, and the two-dimensional playing mode is adopted. The video file is played in the play mode.
A playback device according to claim 1 wherein:

a storage unit, configured to store the first video file;

The screenshot unit is configured to acquire at least one first frame according to the first video file stored by the storage unit, where the first frame is any one of the first video files;

The information processing unit is configured to perform image comparison processing according to the first frame acquired by the screenshot unit to obtain first comparison information;

The acquiring unit is configured to obtain first format information according to the first comparison information acquired by the information processing unit;

a receiving unit, configured to receive a first video file play instruction to play the first video file that has been stored in the storage unit;

The screenshot unit is configured to acquire at least one second frame in the first video file, where the second frame is any frame other than the first frame;

The information processing unit is configured to perform second image matching processing according to the second frame acquired by the screenshot unit to obtain second comparison information;

The acquiring unit is configured to obtain second format information according to the second comparison information acquired by the information processing unit;

The playing unit is configured to: when the first video file is determined to be a three-dimensional video format according to the first format information and the second format information acquired by the acquiring unit, the playing mode of the playing device is switched to three-dimensional Playing the mode, and playing the first video file by using the three-dimensional playing mode; determining that the first video file is a two-dimensional video format according to the first format information and the second format information acquired by the acquiring unit The playback mode of the playback device is switched to a two-dimensional playback mode, and the first video file is played by the two-dimensional playback mode.
A playback device according to claim 2, wherein

a three-dimensional video file buffering unit, configured to store the first video file when the first video file is determined to be a three-dimensional video format according to the first format information and the second format information acquired by the acquiring unit;

a two-dimensional video file buffer unit, configured to acquire the first format information according to the acquiring unit And when the second format information determines that the first video file is a two-dimensional video format, storing the first video file.
A playback device according to claim 1 wherein:

a storage unit, configured to store a second video file;

The screenshot unit is configured to acquire at least one third frame and a fourth frame according to the second video file stored by the storage unit, where the third frame and the fourth frame are in the second video file. Any two frames that are different;

The information processing unit is configured to perform third image matching processing according to the third frame acquired by the screenshot unit to obtain third comparison information, and perform image comparison processing according to the fourth frame to obtain fourth comparison information;

The acquiring unit is configured to obtain third format information according to the third comparison information acquired by the information processing unit, and obtain fourth format information according to the fourth comparison information analysis;

a three-dimensional video file buffering unit, configured to store the second video file when the second video file is determined to be a three-dimensional video format according to the third format information and the fourth format information acquired by the acquiring unit;

a two-dimensional video file buffering unit, configured to store the second video file when the second video file is determined to be a two-dimensional video format according to the third format information and the fourth format information acquired by the acquiring unit .
A playback device according to any one of claims 1 to 4, characterized in that

The information processing unit performs image comparison processing by using a left and right split screen processing mode;

Obtaining the first left and right split screen similarity according to comparing the left and right split screen image information;

Obtaining a second left and right split screen similarity according to the partial image information corresponding to the left and right split screens;

The third left and right split screen similarities are obtained according to the image information of different regions of the single side screen.
A playback device according to any one of claims 1 to 4, characterized in that

The information processing unit performs image comparison processing by using an upper and lower split screen processing mode;

Obtaining the first upper and lower split screen similarity according to the upper and lower split screen image information;

Obtaining a second upper and lower split screen similarity according to the partial image information corresponding to the upper and lower split screens;

The third upper and lower split screen similarities are obtained according to the image information of the different areas of the single side screen.
A playing method, characterized in that

The playback device acquires at least one first frame in the video file, where the first frame is any one of the video files;

Performing image comparison processing according to the first frame to obtain first comparison information;

Obtaining first format information according to the first comparison information analysis;

Determining, according to the first format information, that the video file is in a three-dimensional video format, the playing mode of the playing device is switched to a three-dimensional playing mode, and playing the video file by using the three-dimensional playing mode;

And determining, according to the first format information, that the video file is in a two-dimensional video format, the playing mode of the playing device is switched to a two-dimensional playing mode, and the video file is played by the two-dimensional playing mode.
The playing method according to claim 7, wherein

The playback device stores a first video file;

Obtaining at least one first frame in the first video file, where the first frame is any one of the first video files;

Performing image comparison processing according to the first frame to obtain first comparison information;

Obtaining first format information according to the first comparison information analysis;

The playing device receives the first video file playing instruction to play the first video file;

Obtaining at least one second frame in the first video file, where the second frame is any frame in the first video file except the first frame;

Performing image comparison processing according to the second frame to obtain second comparison information;

Obtaining second format information according to the second comparison information analysis;

And determining, according to the first format information and the second format information, that the first video file is in a three-dimensional video format, the playing mode of the playing device is switched to a three-dimensional playing mode, and the third playing mode is played by the three-dimensional playing mode. a video file;

Determining, according to the first format information and the second format information, that the first video file is in a two-dimensional video format, the playing mode of the playing device is switched to a two-dimensional playing mode, and the two-dimensional playing mode is adopted. Playing the first video file.
A playback method according to claim 8, wherein

And determining, according to the first format information and the second format information, that the first video file is in a three-dimensional video format, storing the first video file in a three-dimensional video file cache unit;

And determining, according to the first format information and the second format information, that the first video file is in a two-dimensional video format, and storing the first video file in a two-dimensional video file cache unit.
The playing method according to claim 7, wherein

The playback device stores a second video file;

Obtaining at least one third frame and a fourth frame in the second video file, where the third frame and the fourth frame are any two different frames in the second video file;

And performing image comparison processing according to the third frame to obtain third comparison information, and performing image comparison processing according to the fourth frame to obtain fourth comparison information;

Obtaining third format information according to the third comparison information analysis, and acquiring fourth format information according to the fourth comparison information analysis;

And determining, according to the third format information and the fourth format information, that the second video file is in a three-dimensional video format, storing the second video file in a three-dimensional video file cache unit;

And determining, according to the third format information and the fourth format information, that the second video file is in a two-dimensional video format, and storing the second video file in a two-dimensional video file buffer unit.
A playing method according to any one of claims 7 to 10, characterized in that

The image comparison processing includes a left and right split screen processing mode;

Obtaining the first left and right split screen similarity according to comparing the left and right split screen image information;

Obtaining a second left and right split screen similarity according to the partial image information corresponding to the left and right split screens;

The third left and right split screen similarities are obtained according to the image information of different regions of the single side screen.
A playing method according to any one of claims 7 to 10, characterized in that

The image comparison processing includes a top and bottom split screen processing mode;

Obtaining the first upper and lower split screen similarity according to the upper and lower split screen image information;

Obtaining a second upper and lower split screen similarity according to the partial image information corresponding to the upper and lower split screens;

The third upper and lower split screen similarities are obtained according to the image information of the different areas of the single side screen.