Hi All, I found a bug in ffmpeg's RTSP implementation. The workflow is as follows:
1. Have a RTSP server that supports Pause. 2. Have ffmpeg play a video from that server (rtsp://<ipaddr>:...). 3. Pause the video in ffmpeg. 4. ffmpeg does NOT properly send the keep alive when Paused (either "GET_PARAMETER" or "OPTIONS"). This is the bug. 5. Since the RTSP server expects the keep alive, after the specified timeout (usually 60s) it closes the connection. The bug is in libavformat/rtspdec.c, rtsp_read_packet method. This method first does ff_rtsp_fetch_packet, which fails when the server is Paused, causing it to never send the "GET_PARAMETER" or "OPTIONS" which is placed after this call. The fix is to simply move that block of code before ff_rtsp_fetch_packet. That is, move the entire if block: if (!(rt->rtsp_flags & RTSP_FLAG_LISTEN)) { ... } just before the call to: ret = ff_rtsp_fetch_packet(s, pkt); I have tested this and it seems to work well for our cases. Your thoughts and comments on this are welcome. Thanks. _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".