Method and device for processing audio and video data based on many-core platform
A data processing, audio and video technology, applied in the field of data processing
Active Publication Date: 2015-04-08
DAWNING INFORMATION IND BEIJING +1
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Theoretically, if there is no upper limit on the size of MP4 video files, there is no upper limit on the size of the header information, so the original strategy of fixed-size space for audio and video stream header information processing is no longer applicable
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[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.
[0041] According to an embodiment of the present invention, a method for processing audio and video data based on a many-core platform is provided. In the process of realizing the solution, the inventor finds that the many-core processing platform Tilera many-core CPU used in the present invention can be implemented on a single chip It provides 64 processor cores, each core can run independently, and can communicate through shared memory and message passing mechanism, providing a computing pla...
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The invention discloses a method and a device for processing audio and video data based on a many-core platform. The method for processing audio and video data based on the many-core platform comprises the following steps of decoding the first segment of the audio and video data through a first core processor to obtain header information of an audio and video stream; storing the header information in a corresponding storage space according to the type of the header information; dividing the audio and video data into an MP4 format and a non-MP4 format; decoding the audio and video data of the MP4 format or the non-MP4 format according to the header information corresponding to the audio and video data of the MP4 format or the non-MP4 format. The decoding of audio and video files of MP4 packaging format is well combined with the decoding of the audio and video files of other packaging formats, and the header information of the MP4 format is stored in the corresponding storage space to realize controllability, so that the requirement of fragment decoding when Internet videos are monitored can be well met through the method.
Description
technical field [0001] The present invention relates to the field of data processing, in particular to an audio and video data processing method and device based on a many-core platform. Background technique [0002] With the rapid development of the Internet, the network-based audio and video transmission traffic is also increasing. Network audio and video streaming has penetrated into people's daily life, bringing a lot of convenience and changes to our life, and there are constantly huge, The image information database with different content seems to have brought us a lot of troubles. A large number of bad images on the Internet have a lot of poison to the young people. In order to purify the Internet and maintain social harmony and stability, it is urgent to supervise audio and video content on the Internet. [0003] Internet video surveillance requires simultaneous content analysis and processing of audio and video streams, requiring an accelerator card capable of proc...
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IPC IPC(8): H04N21/4405H04N21/845
CPCH04N21/4405H04N21/8456
Inventor 何丁丁
Owner DAWNING INFORMATION IND BEIJING