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MPEG 2 decoding

I want to understand how video and audio decoding works, especially time synchronization (how to get 30fps video, how to associate this with audio, etc.). I do not want to know ALL the details, only the essence of this. I want to be able to write high-level simplification of a real video / audio decoder.

Could you point the pointers to me? The actual C / C ++ source code of an MPEG2 video / audio decoder would be the fastest way to understand the things that I think.

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You can view the ffmpeg source code (available via svn) or its API documentation .

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http://www.mpeg.org/MPEG/video/mssg-free-mpeg-software.html

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, " Timing Model " MPEG2 .

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MPEG-2 VIDEO COMPRESSION

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V: 1000 1040 1080 1120... A: 990 1013 1036 () 1082

You may need to compensate for the offset between the first video / audio frame. Also, if it is possible that there is packet loss (during video streaming), you need timestamps for the video / audio to ensure accurate synchronization.

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