Hi Bruce, thanks for your response!
> It's sounds a bit like you're seeing multi-threaded decoding, in which each > decode call gets back a frame that was previously passed in as a packet, and > was decoded on another thread. > The returned frame should have an associated PTS, so it's not a problem. That’s the problem. The AVFrame's PTS is not set (well, it is set to 0x800000000000). The only thing I have left is the pkt_pts and pkt_dts which are both wrong. > Set the number of threads to 1 in your codec context and see if it changes. Good idea! I tried that but it didn’t help. Any other ideas? Thanks, Flo >> On Oct 22, 2014, at 02:53, Info || Non-Lethal Applications >> <[email protected]> wrote: >> >> I’m having problems with my own movie player I wrote using the FFmpeg >> libraries. >> The problem appears with a test DV clip created by Apple’s Compressor. It’s >> a generated clip, so I can upload it if it helps. >> >> Let me quickly outline what I’m doing: >> >> - I read video frames into a frame queue which is used as a source for >> playback >> - I read audio samples into a ring buffer which is used as a source for >> playback >> >> To not risk audio dropouts, I’m reading about 200 ms audio samples more than >> I would need to display the respective video frames. >> While reading audio samples, I’m storing all video packets that come along >> in a video packet queue. >> When the next video frame is requested, I’m searching the queue first and >> read from the file only when the queue is empty. >> This procedure worked fine for all other formats I’ve been working with so >> far (mostly MOV and MXF). >> >> I’ve been analyzing the issue for a couple of hours now and it seems to me >> that the packets that I put to the queue contain different content when I >> decode them later on. >> Actually, it seems that all packets in the queue decode to the frame that >> would be next in line when reading from the file. >> >> Is there anything I could do to prevent this from happening? >> As I said I would be happy to upload the file. It’s 2 minutes of DV PAL, >> about 430 MB in size. I could make it smaller. >> >> Thanks in advance! >> >> Best, >> >> Flo >> _______________________________________________ >> Libav-user mailing list >> [email protected] >> http://ffmpeg.org/mailman/listinfo/libav-user > _______________________________________________ > Libav-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/libav-user _______________________________________________ Libav-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/libav-user
