CN114125501A - Interactive video generation method and playing method and device thereof - Google Patents
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- 230000002452 interceptive effect Effects 0.000 title claims abstract description 202
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000004806 packaging method and process Methods 0.000 claims abstract description 14
- 230000000153 supplemental effect Effects 0.000 claims abstract description 13
- 230000010365 information processing Effects 0.000 claims description 26
- 230000003993 interaction Effects 0.000 claims description 8
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000012545 processing Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/239—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests
- H04N21/2393—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests involving handling client requests
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
Abstract
The invention discloses an interactive video generation method and a playing method and device thereof, wherein the interactive video generation method comprises the following steps: s11, selecting a first video as a play start video, and then entering branch video selection; s12, selecting a branch video and inputting corresponding interactive chapter information; each branch video node comprises at least two branch videos; s13, checking the content of any added video clip through video preview, and checking whether the video is selected correctly; s14, associating the interactive chapter information input in the video operation with the corresponding video segment, then coding the video according to the selected video coding parameters, and simultaneously writing the interactive chapter information into the supplemental enhancement information SEI of the coded video data; and S15, packaging the video code stream with the interactive chapter information generated by video transcoding into a specified file format.
Description
Technical Field
The invention belongs to the technical field of video processing, and particularly relates to an interactive video generation method and a playing method and device thereof.
Background
With the development of internet and mobile information technology, streaming video has become more and more the main way for people to obtain information and entertainment. Video resources and video types are more and more abundant, but the main mode of watching videos is passive receiving, namely, the video playing terminal plays videos in sequence, and a viewer can only passively receive played contents and cannot have many autonomous operations and interactions like playing games. Moreover, the video content is a main line, and the video content is the same set content no matter how many times the video content is played, so that a user can only carry out a small amount of interactive operations such as fast forwarding, skip playing and the like.
With the development of video technology, people begin to put higher interactivity requirements on video viewing. The concept of interactive video has begun to be well known. More and more video technology developers are participating in the interactive video technology research line. Currently, the interactive video technology is still in a starting stage, and mainly focuses on three aspects of interactive video shooting, interactive video generation and interactive video playing.
In the aspect of interactive video generation technology, there are two main methods: one method is that the segment video of the interactive video and all the interactive chapter information are respectively stored in a server, and the association between the video content and the interactive chapter information is carried out by a terminal playing program. The terminal playing program acquires the first video and all the interactive chapter information, analyzes all the interactive chapter information, and then displays the interactive video and the interactive chapter information according to the interactive chapter information acquired in advance in the playing process. When the interactive chapter information amount is large, the time consumed by the terminal for playing is long, the user needs to wait for a long time, and the playing experience is not good. The other method is that the interactive chapter information is directly issued and embedded into the video file packaging format of the associated video clip, the terminal playing program directly obtains the associated interactive chapter information from the file format of the current video clip and carries out interactive video playing and displaying, and the interactive chapter information is dispersedly stored in each interactive video clip, so that the problem of long time consumption in centralized obtaining is solved. However, there are a plurality of mainstream video file packaging formats (FLV \ MP4\ TS, etc.), each file packaging format is independent and incompatible, the same interactive video content needs to be packaged with respect to each file packaging format separately under different video file packaging formats, and meanwhile, the playing end needs to perform special interactive chapter information analysis with respect to each file format, which increases the complexity of playing and spreading the interactive video content.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide an interactive video generation method, a playing method and a device thereof, which are used for respectively embedding interactive chapter information into video coding supplemental enhancement information SEI of corresponding interactive video segments according to scenario setting, so that complexity of interactive video generation can be greatly simplified.
In order to solve the technical problems, the invention adopts the following technical scheme:
a first aspect of an embodiment of the present invention provides an interactive video generation method, including the following steps:
s11, selecting a first video as a play start video, and then entering branch video selection;
s12, selecting a branch video and inputting corresponding interactive chapter information; each branch video node comprises at least two branch videos;
s13, checking the content of any added video clip through video preview, and checking whether the video is selected correctly;
s14, associating the interactive chapter information input in the video operation with the corresponding video segment, then coding the video according to the selected video coding parameters, and simultaneously writing the interactive chapter information into the supplemental enhancement information SEI of the coded video data;
and S15, packaging the video code stream with the interactive chapter information generated by video transcoding into a specified file format.
In one possible design of the first aspect, the interaction of the interactive video generation is performed through an operation interface, and includes video selection, branch video addition, video interactive chapter information input, video parameter information input, and interactive video export.
In one possible design of the first aspect, the video parameter information input includes selecting an encoding format, a video resolution, a bitrate, and a file packing format of the video.
In a possible design of the first aspect, the interactive chapter information includes at least one of interactive operation information, content prompt information, interactive information display time point, and branch video information.
In one possible design of the first aspect, the file format packaged as specified in S15 includes MP 4.
In a possible design of the first aspect, in S15, the file format encapsulated as specified includes a TS.
In a possible design of the first aspect, in S15, the file format packaged as specified includes FLV.
A second aspect of the embodiments of the present invention provides an interactive video playing method, configured to play an interactive video generated as described above, including the following steps:
s21, selecting an interactive video playing address to be played through the interactive video playing terminal;
s22, setting an interactive video playing address to a playing control module, starting a video loading module after the playing control module receives the playing address, and acquiring interactive video stream data from a server by the video loading module;
s23, the video loading module sends the obtained video data to a video analysis module, the video analysis module analyzes the video data, after analysis, the audio data, the video data and supplemental enhancement information SEI data are separated, the audio and video data are sent to an audio and video decoding module, and the SEI data are sent to an interactive chapter information processing module;
s24, the audio and video decoding module respectively decodes the audio and video, and sends the decoded audio and video data to the playing control module for playing;
s25, the playing control module plays the audio and video data, and the playing control module performs audio and video synchronous control in the playing process;
s26, the interactive chapter information processing module analyzes the SEI, and displays corresponding content and interactive operation to a user according to the interactive chapter information obtained by analysis and a specified time node and a set mode; after the user performs the interactive operation, the interactive chapter information processing module receives the user interactive operation in time and judges and analyzes the operation;
s27, in any branch video playing process of the interactive video, executing S22-S26 in a loop until the whole interactive video is played.
A third aspect of the embodiments of the present invention provides an interactive video playing device, configured to play an interactive video generated as described above, including a video loading module, a video parsing module, an audio/video decoding module, an interactive chapter information processing module, and a playing control module,
after receiving the playing address, the playing control module starts a video loading module, and the video loading module acquires interactive video stream data from a server;
the video loading module sends the acquired video data to the video analysis module, the video analysis module analyzes the video data, separates audio data, video data and supplemental enhancement information SEI data after analysis, sends the audio and video data to the audio and video decoding module, and sends the SEI data to the interactive chapter information processing module;
the audio and video decoding module respectively decodes the audio and video and sends the decoded audio and video data to the playing control module for playing;
the playing control module plays the audio and video data, and performs synchronous control on the audio and video in the playing process;
the interactive chapter information processing module analyzes the SEI, and displays corresponding content and interactive operation to a user according to the interactive chapter information obtained by analysis and a specified time node and a set mode; after the user performs the interactive operation, the interactive chapter information processing module receives the user interactive operation in time and judges and analyzes the operation;
in any branch video playing process of the interactive video, the video loading module, the video analyzing module, the audio and video decoding module, the interactive chapter information processing module and the playing control module are circularly reciprocated until the whole interactive video is played.
The invention has the following beneficial effects:
(1) based on the coding layer, the interactive chapter information is respectively embedded into the video coding supplemental enhancement message SEI of the corresponding interactive video clip according to the scenario setting, the coded video with the interactive chapter information can be randomly packaged into different file formats for transmission and playing according to the requirement after once coding, the interactive chapter information does not need to be processed independently aiming at each file packaging format, the complexity of interactive video generation can be greatly simplified, the transferability of the interactive video is enhanced, and the amount of the interactive chapter information and the processing complexity which need to be processed when the terminal plays the video are reduced;
(2) the analysis processing of the interactive chapter information of the interactive video is optimized to be decentralized processing through centralized unified processing, namely the interactive chapter information is issued to each video chapter section, and only the interactive chapter information associated with the interactive video chapter section being played can be analyzed at the same time, so that the performance consumption is saved, the playing starting time is reduced, and the watching experience is increased.
Drawings
FIG. 1 is a flowchart illustrating steps of an interactive video generation method according to an embodiment of the present invention;
FIG. 2 is a diagram illustrating interactive chapter information encoding according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating steps of an interactive video playing method according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an interactive video playing device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a flowchart illustrating steps of an interactive video generation method according to an embodiment of the present invention is shown, including the following steps:
s11, selecting a first video as a play start video, and then entering branch video selection;
s12, selecting a branch video and inputting corresponding interactive chapter information; each branch video node comprises at least two branch videos;
s13, checking the content of any added video clip through video preview, and checking whether the video is selected correctly; the video creator can preview the content of any video clip added into the operation interface through the video preview module, so that the video creator can conveniently view the selected video content and check whether the video is selected correctly.
S14, associating the interactive chapter information input in the video operation with the corresponding video segment, then coding the video according to the selected video coding parameters, and simultaneously writing the interactive chapter information into the supplemental enhancement information SEI of the coded video data;
and S15, packaging the video code stream with the interactive chapter information generated by video transcoding into a specified file format. The specified encapsulation format may be FLV, MP4, TS, or the like.
In an embodiment of the present invention, interaction of interactive video generation is performed through an operation interface. The operation interface comprises an operability interface comprising: video selection, branch video addition, video interaction chapter information input, video parameter information input and interactive video export. The video selection can enable a video creator to select a video required by the video creator, and the video can be a first broadcast video or a branch video; the branch video is newly added, so that a video creator can newly add the branch video, and a plurality of branch videos can be newly added under the same node branch in parallel; the video interaction chapter information input can enable a video creator to input interaction chapter information, each branch video and the first broadcast video are matched with a video interaction chapter information input interface, and the video creator can input the information as required; the input of the video parameter information can enable a video creator to select the coding format, the video resolution, the code rate and the file packaging format of the video; interactive video export allows the video creator to generate the final interactive video after all the information has been designed.
In an embodiment of the present invention, referring to fig. 2, in the coding layer, a frame of picture in video coding includes a start code and a plurality of Network Abstraction Layer Units (NALUs). Each NAL unit includes a set of NAL header information (NAL HEADER) corresponding to the video encoded data and a Raw Byte Sequence Payload (RBSP). Each RBSP includes a sequence parameter set SPS, SEI, picture parameter set PPS, I frame, picture delimiter, P frame and P frame. The interactive chapter information comprises at least one of interactive operation information, content prompt information, interactive information display time points and branch video information which are embedded into an SEI part of the RBSP, so that the subsequent packaging into different specified formats is facilitated.
Through the interactive video generation method, the interactive chapter information is embedded into a supplemental enhancement message (SEI) of the coding layer based on coding, so that the complexity of interactive video generation can be greatly simplified, the broadcast performance of the interactive video is enhanced, and the information amount and processing complexity of the interactive chapter required to be processed when the terminal plays the video are reduced. One encoding can be repeated for the generation of different video file packaging formats (FLV/MP4/TS) without reprocessing the interactive chapter information.
Corresponding to the interactive video generating method, referring to fig. 3, there is shown an interactive video playing method according to another embodiment of the present invention, for playing the interactive video generated in the above embodiment, including the following steps:
s21, selecting an interactive video playing address to be played through the interactive video playing terminal;
s22, setting an interactive video playing address to a playing control module, starting a video loading module after the playing control module receives the playing address, and acquiring interactive video stream data from a server by the video loading module;
s23, the video loading module sends the obtained video data to a video analysis module, the video analysis module analyzes the video data, separates the audio data, the video data and the supplemental enhancement information SEI data after analysis, sends the audio and video data to an audio and video decoding module, and sends the SEI data to an interactive chapter information processing module;
s24, the audio and video decoding module respectively decodes the audio and video, and sends the decoded audio and video data to the playing control module for playing;
s25, the playing control module plays the audio and video data, and the playing control module performs audio and video synchronous control in the playing process;
s26, the interactive chapter information processing module analyzes the SEI, and displays corresponding content and interactive operation to a user according to the interactive chapter information obtained by analysis and a specified time node and a set mode; after the user performs the interactive operation, the interactive chapter information processing module receives the user interactive operation in time and judges and analyzes the operation; if the video information is the text information, the information is directly displayed, such as a plot prompt, a clue prompt of a suspense series and the like, and if the video information is the video information, the information is sent to a play control module to be played, such as the next interactive video branch video;
s27, in any branch video playing process of the interactive video, executing S22-S26 in a loop until the whole interactive video is played.
According to the interactive video playing method, based on the interactive video generated by the interactive video generating method, the interactive chapter information of the current chapter is analyzed and processed and responded when being played, and the interactive chapter information of other chapters is analyzed when the corresponding chapter video is played, so that the interactive chapter information of all chapters is dispersedly processed, the single information processing amount is reduced, the performance consumption is saved, the playing starting time is reduced, and the watching experience is increased.
Corresponding to the interactive video generation method, referring to fig. 4, an interactive video playing device according to an embodiment of the present invention is shown, and is configured to play any one of the generated interactive videos, and includes a video loading module, a video parsing module, an audio/video decoding module, an interactive chapter information processing module, and a playing control module, where after receiving a playing address, the playing control module starts the video loading module, and the video loading module obtains interactive video stream data from a server;
the video loading module sends the acquired video data to the video analysis module, the video analysis module analyzes the video data, separates audio data, video data and supplemental enhancement information SEI data after analysis, sends the audio and video data to the audio and video decoding module, and sends the SEI data to the interactive chapter information processing module;
the audio and video decoding module respectively decodes the audio and video and sends the decoded audio and video data to the playing control module for playing;
the playing control module plays the audio and video data, and performs synchronous control on the audio and video in the playing process;
the interactive chapter information processing module analyzes the SEI, and displays corresponding content and interactive operation to a user according to the interactive chapter information obtained by analysis and a specified time node and a set mode; after the user performs the interactive operation, the interactive chapter information processing module receives the user interactive operation in time and judges and analyzes the operation;
in any branch video playing process of the interactive video, the video loading module, the video analyzing module, the audio and video decoding module, the interactive chapter information processing module and the playing control module are circularly reciprocated until the whole interactive video is played.
Through the interactive video playing device arranged above, the interactive video generated by the interactive video generation method is only analyzed and processed and responded by the interactive chapter information of the current chapter when being played, and the interactive chapter information of other chapters is analyzed again when the corresponding chapter video is played, so that the distributed processing of the interactive chapter information of all chapters is realized, the single information processing amount is reduced, the performance consumption is saved, the playing time is reduced, and the watching experience is increased.
It is to be understood that the exemplary embodiments described herein are illustrative and not restrictive. Although one or more embodiments of the present invention have been described with reference to the accompanying drawings, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims.
Claims (9)
1. An interactive video generation method is characterized by comprising the following steps:
s11, selecting a first video as a play start video, and then entering branch video selection;
s12, selecting a branch video and inputting corresponding interactive chapter information; each branch video node comprises at least two branch videos;
s13, checking the content of any added video clip through video preview, and checking whether the video is selected correctly;
s14, associating the interactive chapter information input in the video operation with the corresponding video segment, then coding the video according to the selected video coding parameters, and simultaneously writing the interactive chapter information into the supplemental enhancement information SEI of the coded video data;
and S15, packaging the video code stream with the interactive chapter information generated by video transcoding into a specified file format.
2. The interactive video generation method of claim 1, wherein the interaction of interactive video generation is performed through an operation interface, and comprises video selection, branch video addition, video interactive chapter information input, video parameter information input, and interactive video export.
3. The interactive video production method of claim 2, wherein the video parameter information input comprises selecting a video encoding format, a video resolution, a bitrate, and a file packing format.
4. The interactive video generating method of claim 1, wherein the interactive chapter information includes at least one of interactive operation information, content prompt information, interactive information presentation time points, and branch video information.
5. An interactive video generating method as claimed in any one of claims 1 to 4, wherein the packaging into the specified file format in S15 includes MP 4.
6. An interactive video generating method according to any one of claims 1 to 4, wherein in S15, the file format packaged as specified includes TS.
7. An interactive video generating method according to any one of claims 1 to 4, wherein in S15, the file packaged into the specified file format includes FLV.
8. An interactive video playing method for playing the interactive video generated according to any one of claims 1 to 7, comprising the steps of:
s21, selecting an interactive video playing address to be played through the interactive video playing terminal;
s22, setting an interactive video playing address to a playing control module, starting a video loading module after the playing control module receives the playing address, and acquiring interactive video stream data from a server by the video loading module;
s23, the video loading module sends the obtained video data to a video analysis module, the video analysis module analyzes the video data, after analysis, the audio data, the video data and supplemental enhancement information SEI data are separated, the audio and video data are sent to an audio and video decoding module, and the SEI data are sent to an interactive chapter information processing module;
s24, the audio and video decoding module respectively decodes the audio and video, and sends the decoded audio and video data to the playing control module for playing;
s25, the playing control module plays the audio and video data, and the playing control module performs audio and video synchronous control in the playing process;
s26, the interactive chapter information processing module analyzes the SEI, and displays corresponding content and interactive operation to a user according to the interactive chapter information obtained by analysis and a specified time node and a set mode; after the user performs the interactive operation, the interactive chapter information processing module receives the user interactive operation in time and judges and analyzes the operation;
s27, in any branch video playing process of the interactive video, executing S22-S26 in a loop until the whole interactive video is played.
9. An interactive video playing device, which is used for playing the interactive video generated by any one of claims 1 to 7, and comprises a video loading module, a video analysis module, an audio and video decoding module, an interactive chapter information processing module and a playing control module,
after receiving the playing address, the playing control module starts a video loading module, and the video loading module acquires interactive video stream data from a server;
the video loading module sends the acquired video data to the video analysis module, the video analysis module analyzes the video data, separates audio data, video data and supplemental enhancement information SEI data after analysis, sends the audio and video data to the audio and video decoding module, and sends the SEI data to the interactive chapter information processing module;
the audio and video decoding module respectively decodes the audio and video and sends the decoded audio and video data to the playing control module for playing;
the playing control module plays the audio and video data, and performs synchronous control on the audio and video in the playing process;
the interactive chapter information processing module analyzes the SEI, and displays corresponding content and interactive operation to a user according to the interactive chapter information obtained by analysis and a specified time node and a set mode; after the user performs the interactive operation, the interactive chapter information processing module receives the user interactive operation in time and judges and analyzes the operation;
in any branch video playing process of the interactive video, the video loading module, the video analyzing module, the audio and video decoding module, the interactive chapter information processing module and the playing control module are circularly reciprocated until the whole interactive video is played.
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| CN112165652A (en) * | 2020-09-27 | 2021-01-01 | 北京字跳网络技术有限公司 | Video processing method, device, equipment and computer readable storage medium |
| CN112468822A (en) * | 2020-11-06 | 2021-03-09 | 上海钦文信息科技有限公司 | Multimedia recording and broadcasting course interaction method based on video SEI message |
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