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tag size in video files


Vidya_tr

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I am working in php with video files Can anyone please explain to me about the tag size ,video tags and audio tags of video files???

 

thanks. :)

 

using FLV header how can I determine if there is a video stream or audio stream only??

I have read about seeking to the end of the file and finding the size of last tag,

then keep seeking backwards skipping over tags until you find a video (or audio if no video) tag and finding the last timestamp which is the duration.

 

I am not able to get a clear idea about this. Can anybody explain this to me..Or any hints if u know.....

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