CN102314917A - Method and device for playing video and audio files - Google Patents
Method and device for playing video and audio files Download PDFInfo
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- CN102314917A CN102314917A CN201010223956XA CN201010223956A CN102314917A CN 102314917 A CN102314917 A CN 102314917A CN 201010223956X A CN201010223956X A CN 201010223956XA CN 201010223956 A CN201010223956 A CN 201010223956A CN 102314917 A CN102314917 A CN 102314917A
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Abstract
The invention provides a method and a device for playing video and audio files. The method comprises the following steps of: 1, identifying a scene in a video image, and thus obtaining the scene in the video image and an audio file which corresponds to each scene; 2, analyzing the scene, and thus obtaining change parameters of the scene; and 3, controlling the playing of the audio file which corresponds to the scene according to the change parameters of the scene. By the invention, the playing of the audio file can be controlled according to the change of the scene in the video image, and the technical problem of inconformity of a sound effect and a vision effect in the prior art is solved.
Description
Technical Field
The present invention relates to audio-video processing technologies, and in particular, to a method and a device for playing an audio-video file.
Background
With the popularization and application of digital technology, a large number of video and audio files to be played are generated in daily life, some of the video and audio files need to be played synchronously with images and sounds, such as movies, and in some application scenes, the images and the sounds of the files have no correlation, such as background music played when a digital photo frame displays photos. Or when the camera is recording, playing background music, or playing a video clip without accompanying sound, etc., in which the system has both audio and video outputs, but there is no direct association between the two. Usually playing music at this time is not necessarily a function, but playing background music can enhance the user experience.
In addition, some computer games with 3D graphics effect also need to play background music, although the audio of the background music is usually stereo effect, these audio files are independent, and when a predetermined scene or a predetermined event is reached, a predetermined audio file is selected, and as long as the audio file is selected, the audio file is played independently and is not associated with the change of video.
For example, in a racing game, a motor sound is triggered when fuel is added, a collision sound is triggered when a car is collided, when a picture scene reaches a railway crossing, a train in the picture sounds a siren, and once triggered, the audio files are played independently and have no relation with the picture. Therefore, because of this simple and rough audio playing method, a certain distortion situation may occur, for example, when the scene of a train arrives at the scene of the train in the picture, the audio of the train siren is triggered, and at this time, when the racing car is far away from or approaching the train, the siren sound should be correspondingly increased or decreased, if the train is on the left side of the racing car, the siren sound should mainly come from the left side of the player (left side speaker), and if the train is on the right side of the racing car, the siren sound should mainly come from the right side of the player (right side speaker), but the audio file played independently at present cannot achieve this effect, therefore, the feeling given to the player is that the sound is unrelated to the position, the sound effect is not consistent to the visual effect, the real experience of the player or the user is reduced.
Disclosure of Invention
The invention aims to provide a playing method and a playing device of an audio and video file, which can control the playing of an audio file according to the change of scenes in a video image and solve the technical problem that the sound effect and the visual effect do not accord with each other in the prior art.
In order to achieve the above object, on one hand, a method for playing an audio/video file is provided, which includes the following steps:
identifying scenes in a video image to obtain the scenes in the video image and an audio file corresponding to each scene;
analyzing the scene to obtain the change parameters of the scene;
and step three, controlling the playing of the audio file corresponding to the scene according to the change parameters of the scene.
Preferably, in the above method, the variation parameter is: direction of motion, brightness, and/or histogram of the scene.
Preferably, in the method, in the step three, the step of controlling the playing of the audio file corresponding to the scene specifically includes: and according to the motion direction, enabling the volume change trend and the sound transmission direction of the played audio file to be consistent with the motion direction.
Preferably, in the above method, if the motion direction of the scene is from far to near, the volume change trend is from small to large;
and if the motion direction of the scene is from near to far, the volume change trend is from large to small.
Preferably, in the above method, in the third step, the audio file is a stereo file, a surround stereo file, and/or a virtual 3D surround stereo file;
the step of controlling the playing of the audio file corresponding to the scene specifically includes: rendering the stereo, surround stereo and/or virtual 3D surround stereo with a sense of direction dependent on the direction of motion.
Preferably, in the above method, the audio file is a surround sound audio file, and if the scene is located in a first lateral direction of a user playing role in the video image, the sound transmission direction is a first lateral direction from an observer of the video image; or,
the audio file is a two-channel audio file, and if the scene is positioned in the left direction of the role played by the user in the video image, the sound transmission direction is the left direction from the observer of the video image; if the scene is located in the right direction of the user-played role in the video image, the sound transmission direction is the right direction from the observer of the video image.
In order to achieve the above object, an embodiment of the present invention further provides a playback device for an audio/video file, including:
an identification module to: identifying scenes in a video image to obtain the scenes in the video image and an audio file corresponding to each scene;
an analysis module to: analyzing the scene to obtain the change parameters of the scene;
a play control module for: and controlling the playing of the audio file corresponding to the scene according to the change parameters of the scene.
Preferably, in the above playback apparatus, the variation parameter is: direction of motion, brightness, and/or histogram of the scene.
Preferably, in the above playback device, the playback control module is specifically configured to: and according to the motion direction, enabling the volume change trend and the sound transmission direction of the played audio file to be consistent with the motion direction.
Preferably, in the above playing device, the audio file is a stereo file, a surround stereo file and/or a virtual 3D surround stereo file;
the play control module is specifically configured to: rendering the stereo, surround stereo and/or virtual 3D surround stereo with a sense of direction dependent on the direction of motion.
The invention has at least the following technical effects:
1) the embodiment of the invention controls the playing of the audio file by analyzing the scene change in the video, can unify the sound effect and the visual effect, increases the field experience of users and increases the competitiveness of products.
2) In embodiments of the invention, a scene may be an object in a video image, such as a train in a picture, and an audio file corresponding to the scene, such as a siren in the train or a rattle of a wheel hitting a rail, and one or more such scenes may be in the video image, including, for example, a far away train and a coming car, so that the invention makes the corresponding sounds in the image more realistic.
Drawings
FIG. 1 is a flow chart of the steps of a method provided by an embodiment of the present invention;
fig. 2a and 2b are schematic diagrams of 2D audio playing control provided by an embodiment of the present invention;
fig. 3a and 3b are schematic diagrams of 3D audio playback control according to an embodiment of the present invention;
FIG. 4 is a block diagram of an apparatus provided by an embodiment of the present invention;
fig. 5 is a connection diagram of an application of the apparatus according to the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the following detailed description of the embodiments is provided with reference to the accompanying drawings.
Because many audio files corresponding to videos are not live audio recorded at the same time as the recorded videos, but some background music or a single file, for example, a picture in a computer game, the audio file is a preset file with scene trigger, such as a gunshot in a gunfight game, a car motor sound in an extreme flying car, a siren sound of a train, etc., and once triggered, the files are played according to the recorded contents without being associated with the picture, for example, when a racing car game picture appears at a railroad crossing, the sound of a train on a railway is triggered, and at this time, a player may drive a racing car to approach or depart from the train, and the sound of the train cannot reflect the change of the distance and direction of the sound caused by the approach or departure.
Therefore, the present invention provides a method for controlling audio playing through characteristics of a moving image (video), fig. 1 is a flowchart of steps of a method provided in an embodiment of the present invention, and as shown in fig. 1, a method for playing an audio/video file includes the following steps:
102, analyzing the scene to obtain a change parameter of the scene;
and 103, controlling the playing of the audio file corresponding to the scene according to the change parameters of the scene.
Wherein the variation parameter may be: direction of motion, brightness, and/or histogram of the scene.
In step 103, the step of controlling the playing of the audio file corresponding to the scene specifically includes: and according to the motion direction, enabling the volume change trend and the sound transmission direction of the audio file playing the scene to be consistent with the motion direction of the scene.
The audio types of the audio file include stereo, surround stereo, and also virtual 3D surround stereo; controlling the playback, the processing and transformation of audio includes rendering stereo, surround sound with a sense of direction, as well as rendering a sense of direction through virtual 3D surround sound technology.
In embodiments of the invention, a scene may be an object in a video image, such as a train in a picture, and an audio file corresponding to the scene, such as a siren in the train or a rattle of a wheel hitting a rail, and one or more such scenes may be in the video image, including, for example, a far away train and a coming car, so that the invention makes the corresponding sounds in the image more realistic
If the motion direction of the scene is from far to near, the volume change trend is from small to large; for example, a train coming from a distance in the screen, the siren of the train changes from small to large.
And if the motion direction of the scene is from near to far, the volume change trend is from large to small. For example, if the train in the screen moves farther away, the siren will go from loud to quiet.
The audio file may be a 2D (two-channel left and right) audio file, and if the scene is located in a left direction of a user-played role in the video image, the sound transmission direction is a left direction from an observer of the video image; if the scene is located in the right direction of the user-played role in the video image, the sound transmission direction is the right direction from the observer of the video image. Fig. 2a and 2b are schematic diagrams of 2D audio playing control provided by an embodiment of the present invention, where as shown in fig. 2a, when a scene moves to the right, sound also moves to the right, and as shown in fig. 2b, when a scene moves to the left, sound also moves to the left.
The audio file may also be a 3D (surround sound) audio file, the sound transmission direction being a first lateral direction from an observer of the video image if the scene is located in a first lateral direction of a user-played role in the video image.
Fig. 3a and 3b are schematic diagrams of 3D audio playback control according to an embodiment of the present invention; as shown in fig. 3a, the scene moves to the upper right side, and then the sound also goes far to the upper right side. As shown in fig. 3b, the scene moves to the lower right side, and then the sound also moves farther to the lower right side.
Therefore, the embodiment of the invention provides a method for controlling audio playing through the characteristics of a moving image (video), the method of the embodiment of the invention obtains parameters through the analysis of video signals, and the parameters of 2D (left-right direction) or 3D (360-degree omnibearing) are formed, so that the azimuth of the played audio is related to the characteristics of the image and the moving image (video), and a new audio-visual experience is achieved.
The image or video information (change parameters) that can be extracted may include, but is not limited to: direction of motion, brightness of the scene, histogram, etc.
The scene of the embodiment of the invention can be a scene applied to games, such as a racing game: the game resource stores the normal stereo audio, and the direction and the intensity of the audio playing are controlled by analyzing the video content according to the progress of the game during the game.
An embodiment of the present invention further provides a playback device for an audio/video file, where fig. 4 is a structural diagram of the device, and as shown in fig. 4, the playback device includes:
an identification module 401 configured to: identifying scenes in a video image to obtain the scenes in the video image and an audio file corresponding to each scene;
an analysis module 402 for: analyzing the scene to obtain the change parameters of the scene;
a play control module 403, configured to: and controlling the playing of the audio file corresponding to the scene according to the change parameters of the scene.
Wherein the variation parameters are: direction of motion, brightness, and/or histogram of the scene. And the playing control module enables the volume change trend and the sound transmission direction of the audio file to be consistent with the motion direction according to the motion direction.
The audio file is a stereo file, a surround stereo file and/or a virtual 3D surround stereo file; the play control module is specifically configured to: rendering the stereo, surround stereo and/or virtual 3D surround stereo with a sense of direction dependent on the direction of motion.
Fig. 5 is an application connection diagram of the apparatus according to the embodiment of the present invention, as shown in fig. 5, an identification module 401 identifies a scene in a decoded video stream, an analysis module 402 analyzes the scene, and finally sends a variation parameter to a play control module 403, where the play control module 403 can perform left and right channel control or 360-degree omni-directional control.
From the above, the embodiments of the present invention have the following advantages:
1) the embodiment of the invention controls the playing of the audio file by analyzing the scene change in the video, can unify the sound effect and the visual effect, increases the field experience of users and increases the competitiveness of products.
2) In embodiments of the invention, a scene may be an object in a video image, such as a train in a picture, and an audio file corresponding to the scene, such as a siren in the train or a rattle of a wheel hitting a rail, and one or more such scenes may be in the video image, including, for example, a far away train and a coming car, so that the invention makes the corresponding sounds in the image more realistic.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A method for playing audio and video files is characterized by comprising the following steps:
identifying scenes in a video image to obtain the scenes in the video image and an audio file corresponding to each scene;
analyzing the scene to obtain the change parameters of the scene;
and step three, controlling the playing of the audio file corresponding to the scene according to the change parameters of the scene.
2. The playback method according to claim 1, wherein the variation parameter is: direction of motion, brightness, and/or histogram of the scene.
3. The playing method according to claim 2, wherein in the third step, the step of controlling the playing of the audio file corresponding to the scene specifically includes: and according to the motion direction, enabling the volume change trend and the sound transmission direction of the played audio file to be consistent with the motion direction.
4. The playback method according to claim 3,
if the motion direction of the scene is from far to near, the volume change trend is from small to large;
and if the motion direction of the scene is from near to far, the volume change trend is from large to small.
5. The playback method according to claim 2, wherein in the third step, the audio file is a stereo file, a surround stereo file, and/or a virtual 3D surround stereo file;
the step of controlling the playing of the audio file corresponding to the scene specifically includes: rendering the stereo, surround stereo and/or virtual 3D surround stereo with a sense of direction dependent on the direction of motion.
6. The playback method according to claim 3,
the audio file is a surround sound audio file, and if the scene is located in a first lateral direction of a user-played role in the video image, the sound transmission direction is a first lateral direction from an observer of the video image; or,
the audio file is a two-channel audio file, and if the scene is positioned in the left direction of the role played by the user in the video image, the sound transmission direction is the left direction from the observer of the video image; if the scene is located in the right direction of the user-played role in the video image, the sound transmission direction is the right direction from the observer of the video image.
7. A playback apparatus for video and audio files, comprising:
an identification module to: identifying scenes in a video image to obtain the scenes in the video image and an audio file corresponding to each scene;
an analysis module to: analyzing the scene to obtain the change parameters of the scene;
a play control module for: and controlling the playing of the audio file corresponding to the scene according to the change parameters of the scene.
8. The playback apparatus as claimed in claim 7, wherein the variation parameter is: direction of motion, brightness, and/or histogram of the scene.
9. The playback device of claim 8, wherein the playback control module is specifically configured to: and according to the motion direction, enabling the volume change trend and the sound transmission direction of the played audio file to be consistent with the motion direction.
10. The playback device according to claim 8, wherein the audio file is a stereo file, a surround stereo file, and/or a virtual 3D surround stereo file;
the play control module is specifically configured to: rendering the stereo, surround stereo and/or virtual 3D surround stereo with a sense of direction dependent on the direction of motion.
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| CN201010223956XA CN102314917A (en) | 2010-07-01 | 2010-07-01 | Method and device for playing video and audio files |
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Cited By (17)
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| CN104801043A (en) * | 2014-01-23 | 2015-07-29 | 腾讯科技（深圳）有限公司 | Method and device for scene sound effect control |
| WO2015124087A1 (en) * | 2014-02-18 | 2015-08-27 | Tencent Technology (Shenzhen) Company Limited | Audio control method and apparatus |
| CN107115672A (en) * | 2016-02-24 | 2017-09-01 | 网易（杭州）网络有限公司 | Gaming audio resource player method, device and games system |
| CN107277618A (en) * | 2017-08-03 | 2017-10-20 | 深圳Tcl数字技术有限公司 | Television terminal and picture tonequality processing method and computer-readable recording medium |
| CN107885855A (en) * | 2017-11-15 | 2018-04-06 | 福州掌易通信息技术有限公司 | Dynamic caricature generation method and system based on intelligent terminal |
| CN107978328A (en) * | 2017-12-21 | 2018-05-01 | 联想(北京)有限公司 | Information processing method and its device |
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| CN108525302A (en) * | 2018-04-09 | 2018-09-14 | 网易（杭州）网络有限公司 | Control method, device, processor and the terminal of game background music |
| CN108616768A (en) * | 2018-05-02 | 2018-10-02 | 腾讯科技（上海）有限公司 | Synchronous broadcast method, device, storage location and the electronic device of multimedia resource |
| CN109246474A (en) * | 2018-10-16 | 2019-01-18 | 维沃移动通信（杭州）有限公司 | A kind of video file edit methods and mobile terminal |
| CN109316749A (en) * | 2018-09-18 | 2019-02-12 | 珠海金山网络游戏科技有限公司 | A kind of audio frequency playing method, device and equipment |
| CN109376266A (en) * | 2018-09-18 | 2019-02-22 | 北京小米移动软件有限公司 | Processing method, device, electronic equipment and the storage medium of slow motion video |
| CN110134824A (en) * | 2018-02-09 | 2019-08-16 | 驭势（上海）汽车科技有限公司 | The method, apparatus and system of geographical location information is presented |
| CN110267082A (en) * | 2019-06-03 | 2019-09-20 | 李少锋 | Automatically switch the control method for playing back and system of audio-video by language minimum unit |
| CN110377212A (en) * | 2019-06-28 | 2019-10-25 | 上海元笛软件有限公司 | Pass through method, apparatus, computer equipment and the storage medium of audio triggering display |
| CN113016189A (en) * | 2018-11-16 | 2021-06-22 | 三星电子株式会社 | Electronic device and method for recognizing audio scene |
| CN113497953A (en) * | 2020-04-07 | 2021-10-12 | 北京达佳互联信息技术有限公司 | Music scene recognition method, device, server and storage medium |
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| CN104801043A (en) * | 2014-01-23 | 2015-07-29 | 腾讯科技（深圳）有限公司 | Method and device for scene sound effect control |
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| CN107115672A (en) * | 2016-02-24 | 2017-09-01 | 网易（杭州）网络有限公司 | Gaming audio resource player method, device and games system |
| CN107277618A (en) * | 2017-08-03 | 2017-10-20 | 深圳Tcl数字技术有限公司 | Television terminal and picture tonequality processing method and computer-readable recording medium |
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| CN107978328B (en) * | 2017-12-21 | 2020-07-24 | 联想(北京)有限公司 | Information processing method and device |
| CN110134824A (en) * | 2018-02-09 | 2019-08-16 | 驭势（上海）汽车科技有限公司 | The method, apparatus and system of geographical location information is presented |
| CN110134824B (en) * | 2018-02-09 | 2021-11-02 | 驭势（上海）汽车科技有限公司 | Method, device and system for presenting geographic position information |
| CN108525302A (en) * | 2018-04-09 | 2018-09-14 | 网易（杭州）网络有限公司 | Control method, device, processor and the terminal of game background music |
| CN108616768A (en) * | 2018-05-02 | 2018-10-02 | 腾讯科技（上海）有限公司 | Synchronous broadcast method, device, storage location and the electronic device of multimedia resource |
| CN109316749A (en) * | 2018-09-18 | 2019-02-12 | 珠海金山网络游戏科技有限公司 | A kind of audio frequency playing method, device and equipment |
| CN109376266A (en) * | 2018-09-18 | 2019-02-22 | 北京小米移动软件有限公司 | Processing method, device, electronic equipment and the storage medium of slow motion video |
| CN109246474B (en) * | 2018-10-16 | 2021-03-02 | 维沃移动通信（杭州）有限公司 | Video file editing method and mobile terminal |
| CN109246474A (en) * | 2018-10-16 | 2019-01-18 | 维沃移动通信（杭州）有限公司 | A kind of video file edit methods and mobile terminal |
| CN113016189A (en) * | 2018-11-16 | 2021-06-22 | 三星电子株式会社 | Electronic device and method for recognizing audio scene |
| CN113016189B (en) * | 2018-11-16 | 2023-12-19 | 三星电子株式会社 | Electronic device and method for recognizing audio scene |
| CN110267082B (en) * | 2019-06-03 | 2020-05-05 | 李少锋 | Playing control method and system for automatically switching audio and video according to language minimum unit |
| CN110267082A (en) * | 2019-06-03 | 2019-09-20 | 李少锋 | Automatically switch the control method for playing back and system of audio-video by language minimum unit |
| US12019676B2 (en) | 2019-06-03 | 2024-06-25 | Shaofeng Li | Method and system for presenting a multimedia stream |
| CN110377212A (en) * | 2019-06-28 | 2019-10-25 | 上海元笛软件有限公司 | Pass through method, apparatus, computer equipment and the storage medium of audio triggering display |
| CN113497953A (en) * | 2020-04-07 | 2021-10-12 | 北京达佳互联信息技术有限公司 | Music scene recognition method, device, server and storage medium |
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