Hi there, I was hoping somebody could offer advice on how to loop a
video with libavformat/libavcodec.
I have a filter graph created, so my core decoding code is basically:
if( (err = av_read_frame(inputCtx, packet)) < 0) {
if(err != AVERROR_EOF) {
/* handle errors, return */
}
avformat_seek_file(inputCtx,videoStreamIndex, 0, 0, 0, 0));
avcodec_flush_buffers(codecCtx);
}
if(packet.stream_index == videoStreamIndex) {
avcodec_send_packet(codecCtx,packet);
avcodec_receive_frame(codecCtx,tmpFrame);
av_buffersrc_write_frame(bufferSrcCtx,tmpFrame);
if(av_buffersink_get_frame(bufferSinkCrx,frame) >= 0) {
/* we have a frame */
}
}
I'm not sure if there's steps that need to be taken to reset the filter
graph? Like is there a timestamp discontinuity?
It seems like this should work - but I'm missing something, it seems
like the buffersink_get_frame stops producing frames after I reset.
Thank you in advance,
-John
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