Hi everyone! I have a little question about AVI file MPEG-4 video content. The problem was obtained when I try to write encoded MPEG-4 packets in AVI file using av_write_frame and av_write_header. Encoded video was received from IP-Camera over TCP protocol, thats why output stream may contain non-key coded frame in the first packet. All packets was successfully pushed in AVI file. After that I try to play them with ffplay. If first packet in AVI file contain key frame - ffplay successfully play it, otherwise - video was broken. Is it right that AVI file MUST have I-VOP in the first packet, or it may contain P-VOP or another type?
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