On 06/18/2014 03:54 PM, Slash wrote:
I have tried using av_seek_frame(pFormatCtx, videoStream, 0, AVSEEK_FLAG_ANY) to jump back to the beginning but apparently I didn't get any new decoded data so it is not doing what I need.
You need to flush the decoder context by calling avcodec_flush_buffers(your_codeccontext) after calling av_seek. Also, make sure that your stream starts with an SPS+PPS pair followed by an I-frame. Until you've decoded those, you can't decode any picture. If you seek to the beginning of a properly encoded file, they would be there; however, if the file is not properly encoded, you seek to the middle, or you are using a recorded RTSP stream, they might come later or not at all (in RTSP they may arrive in a side channel)
(It is AVCodecContext that references B and P frames, not AVPacket as someone suggested).
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