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  • RTP Stream shows gray background then crashes

    5 novembre 2019, par Carlo

    I’m trying to play some RTP stream in python using opencv and an SDP file. I’m getting a gray window with some distorted images at the top(see attached image) and after a few seconds the program would crash and the gray window would close.

    output

    I also tried to capture the packets of the stream via wireshark and extract the video information using media info.

    Note:The extracted video was playing smoothly.

    capture

    Media information using GSpot

    another

    The SDP file contains :

    v=0
    m=video 5000 RTP/AVP 103
    c=IN IP4 239.194.115.71
    a=rtpmap:103 H264/90000

    These are the error codes shown in the terminal :

    [h264 @ 0000029d3c8d85c0] non-existing PPS 2 referenced
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    [h264 @ 0000029d3c8d85c0] decode_slice_header error
    [h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    [h264 @ 0000029d3c8d85c0] decode_slice_header error
    [h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    [h264 @ 0000029d3c8d85c0] decode_slice_header error
    [h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    [h264 @ 0000029d3c8d85c0] decode_slice_header error
    [h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    [h264 @ 0000029d3c8d85c0] decode_slice_header error
    [h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    [h264 @ 0000029d3c8d85c0] decode_slice_header error
    [h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    [h264 @ 0000029d3c8d85c0] decode_slice_header error
    [h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    [h264 @ 0000029d3c8d85c0] decode_slice_header error
    [h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    [h264 @ 0000029d3c8d85c0] decode_slice_header error
    [h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    [h264 @ 0000029d3c8d85c0] decode_slice_header error
    [h264 @ 0000029d3c8d85c0] no frame!
    [h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    [h264 @ 0000029d3c8d85c0] decode_slice_header error
    [h264 @ 0000029d3c8d85c0] no frame!
    [h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    [h264 @ 0000029d3c8d85c0] decode_slice_header error
    [h264 @ 0000029d3c8d85c0] no frame!
    [h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    [h264 @ 0000029d3c8d85c0] decode_slice_header error
    [h264 @ 0000029d3c8d85c0] no frame!
    [h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    [h264 @ 0000029d3c8d85c0] decode_slice_header error
    [h264 @ 0000029d3c8d85c0] no frame!
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3c8d85c0] top block unavailable for requested intra mode
    [h264 @ 0000029d3c8d85c0] error while decoding MB 2 0, bytestream 353
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3c8d85c0] error while decoding MB 58 2, bytestream -11
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3c8d85c0] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3c8d85c0] error while decoding MB 13 3, bytestream -9
    [h264 @ 0000029d3393e540] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3393e540] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3393e9c0] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3393e9c0] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3393e9c0] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3393e9c0] non-existing PPS 0 referenced
    [h264 @ 0000029d3393e9c0] decode_slice_header error
    [h264 @ 0000029d3c952300] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3c952300] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3c952300] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3c952300] non-existing PPS 0 referenced
    [h264 @ 0000029d3c952300] decode_slice_header error
    [h264 @ 0000029d3cf7c940] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3cf7c940] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3cf7c940] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3cf7c940] non-existing PPS 0 referenced
    [h264 @ 0000029d3cf7c940] decode_slice_header error
    [h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3393e540] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3393e540] non-existing PPS 0 referenced
    [h264 @ 0000029d3393e540] decode_slice_header error
    [h264 @ 0000029d3393e9c0] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3393e9c0] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3393e9c0] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3393e9c0] non-existing PPS 0 referenced
    [h264 @ 0000029d3393e9c0] decode_slice_header error
    [h264 @ 0000029d3c952300] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3c952300] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3c952300] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3c952300] non-existing PPS 0 referenced
    [h264 @ 0000029d3c952300] decode_slice_header error
    [h264 @ 0000029d3cf7c940] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3cf7c940] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3cf7c940] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3cf7c940] non-existing PPS 0 referenced
    [h264 @ 0000029d3cf7c940] decode_slice_header error
    [h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3393e540] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3393e540] non-existing PPS 0 referenced
    [h264 @ 0000029d3393e540] decode_slice_header error
    [h264 @ 0000029d3393e9c0] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3393e9c0] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3393e9c0] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3393e9c0] non-existing PPS 0 referenced
    [h264 @ 0000029d3393e9c0] decode_slice_header error
    [h264 @ 0000029d3c952300] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3c952300] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3c952300] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3c952300] non-existing PPS 0 referenced
    [h264 @ 0000029d3c952300] decode_slice_header error
    [h264 @ 0000029d3c952300] no frame!
    [h264 @ 0000029d3cf7c940] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3cf7c940] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3cf7c940] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3cf7c940] non-existing PPS 0 referenced
    [h264 @ 0000029d3cf7c940] decode_slice_header error
    [h264 @ 0000029d3cf7c940] no frame!
    [h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3393e540] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3393e540] non-existing PPS 0 referenced
    [h264 @ 0000029d3393e540] decode_slice_header error
    [h264 @ 0000029d3393e540] no frame!
    [h264 @ 0000029d3393e9c0] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3393e9c0] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3393e9c0] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3393e9c0] non-existing PPS 0 referenced
    [h264 @ 0000029d3393e9c0] decode_slice_header error
    [h264 @ 0000029d3393e9c0] no frame!
    [h264 @ 0000029d3c952300] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3c952300] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3c952300] SPS unavailable in decode_picture_timing
    [h264 @ 0000029d3c952300] non-existing PPS 0 referenced
    [h264 @ 0000029d3c952300] decode_slice_header error
    [h264 @ 0000029d3c952300] no frame!
    [h264 @ 0000029d3cf7c940] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3cf7c940] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3cf7c940] top block unavailable for requested intra mode
    [h264 @ 0000029d3cf7c940] error while decoding MB 2 0, bytestream 353
    [h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3393e9c0] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3393e9c0] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3c952300] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3c952300] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3393e9c0] error while decoding MB 58 2, bytestream -11
    [h264 @ 0000029d3cf7c940] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3cf7c940] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3393e9c0] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3393e9c0] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3393e9c0] error while decoding MB 13 3, bytestream -9
    [h264 @ 0000029d3c952300] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3c952300] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3c952300] cabac decode of qscale diff failed at 59 2
    [h264 @ 0000029d3c952300] error while decoding MB 59 2, bytestream 217
    [h264 @ 0000029d3cf7c940] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3cf7c940] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3393e9c0] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3393e9c0] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3c952300] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3c952300] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3cf7c940] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3cf7c940] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3cf7c940] cabac decode of qscale diff failed at 70 1
    [h264 @ 0000029d3cf7c940] error while decoding MB 70 1, bytestream 337
    [h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3393e540] error while decoding MB 71 2, bytestream -17
    [h264 @ 0000029d3393e9c0] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3393e9c0] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3393e9c0] error while decoding MB 33 2, bytestream -11
    [h264 @ 0000029d3c952300] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3c952300] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3c952300] top block unavailable for requested intra mode
    [h264 @ 0000029d3c952300] error while decoding MB 2 0, bytestream 371
    [h264 @ 0000029d3cf7c940] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3cf7c940] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3393e9c0] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3393e9c0] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3c952300] Invalid NAL unit 12, skipping.
    [h264 @ 0000029d3c952300] Invalid NAL unit 12, skipping.
    [h264 @ 0000029d3cf7c940] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3cf7c940] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3393e540] Invalid NAL unit 12, skipping.
    [h264 @ 0000029d3393e540] Invalid NAL unit 12, skipping.
    [h264 @ 0000029d3393e9c0] Invalid NAL unit 12, skipping.
    [h264 @ 0000029d3393e9c0] Invalid NAL unit 12, skipping.
    [h264 @ 0000029d3c952300] Invalid NAL unit 12, skipping.
    [h264 @ 0000029d3c952300] Invalid NAL unit 12, skipping.
    [h264 @ 0000029d3cf7c940] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3cf7c940] Invalid NAL unit 11, skipping.
    [h264 @ 0000029d3393e540] Invalid NAL unit 12, skipping.
    [h264 @ 0000029d3393e540] Invalid NAL unit 12, skipping.
    [h264 @ 0000029d3393e540] cabac decode of qscale diff failed at 118 1
    [h264 @ 0000029d3393e540] error while decoding MB 118 1, bytestream 379
    [h264 @ 0000029d3393e9c0] Invalid NAL unit 12, skipping.
    [h264 @ 0000029d3393e9c0] Invalid NAL unit 12, skipping.
    [h264 @ 0000029d3c952300] Invalid NAL unit 12, skipping.
    [h264 @ 0000029d3c952300] Invalid NAL unit 12, skipping.
    [h264 @ 0000029d3c952300] cabac decode of qscale diff failed at 70 1
    [h264 @ 0000029d3c952300] error while decoding MB 70 1, bytestream 377
    [h264 @ 0000029d3cf7c940] Invalid NAL unit 12, skipping.
    [h264 @ 0000029d3cf7c940] Invalid NAL unit 12, skipping.
    [h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    [h264 @ 0000029d3393e9c0] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3393e9c0] Invalid NAL unit 0, skipping.
    [h264 @ 0000029d3393e9c0] top block unavailable for requested intra mode -1
    [h264 @ 0000029d3393e9c0] error while decoding MB 4 0, bytestream 291
    [h264 @ 0000029d3c952300] Invalid NAL unit 12, skipping.
    [h264 @ 00
    Process finished with exit code -1

    Python code :

    vcap = cv2.VideoCapture('test.sdp')

    while (1):
       ret, frame = vcap.read()
       cv2.imshow('VIDEO', frame)
       cv2.waitKey(1)

    wireshark dump :

    https://drive.google.com/open?id=1zppjXVgEcL8Ws-xP3e1J7NJF1UGdPzMA

    Am I using a wrong codec code or clock-rate inside the SDP file for it to display the stream properly ?

  • Why does ffmpeg show a corrupted video when receiving stream in MPEG TS format ?

    20 décembre 2019, par Carlo

    I’m trying to stream a CCTV footage using RTP/MPEGTS. I can properly view it in vlc using the following command(I’m using windows 10) :

    vlc --demux ts rtp://239.194.115.71:5000

    vlc

    The problem arises when I tried to receive and play it in ffmpeg using the following command :

    ffplay -f mpegts rtp://239.194.115.71:5000

    I’m getting a semi decent video for the first 5 seconds :

    first5

    After 5 seconds the video gets droopy and corrupted
    (note that the top part of the video seems to be unaffected)

    after5

    Compete logs can be found here : https://pastebin.com/7CvbFsQK

    This is some of the logs from ffmpeg :

    [udp @ 00000296e31a4480] 'circular_buffer_size' option was set but it is not supported on this build (pthread support is required)
    [udp @ 00000296e319f400] 'circular_buffer_size' option was set but it is not supported on this build (pthread support is required)
    [mpegts @ 00000296e31a4880] Unable to seek back to the start
    [mpegts @ 00000296e31a4880] Unable to seek back to the startf=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [h264 @ 00000296e31c9e80] SPS unavailable in decode_picture_timing
    [h264 @ 00000296e31c9e80] non-existing PPS 0 referenced
    [h264 @ 00000296e31c9e80] SPS unavailable in decode_picture_timing
    [h264 @ 00000296e31c9e80] non-existing PPS 0 referenced
    [h264 @ 00000296e31c9e80] decode_slice_header error
    [h264 @ 00000296e31c9e80] no frame!
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [h264 @ 00000296e31c9e80] SPS unavailable in decode_picture_timing
    [h264 @ 00000296e31c9e80] non-existing PPS 0 referenced
    [h264 @ 00000296e31c9e80] SPS unavailable in decode_picture_timing
    [h264 @ 00000296e31c9e80] non-existing PPS 0 referenced
    [h264 @ 00000296e31c9e80] decode_slice_header error
    [h264 @ 00000296e31c9e80] no frame!
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [h264 @ 00000296e31c9e80] SPS unavailable in decode_picture_timing
    [h264 @ 00000296e31c9e80] non-existing PPS 0 referenced
    [h264 @ 00000296e31c9e80] SPS unavailable in decode_picture_timing
    [h264 @ 00000296e31c9e80] non-existing PPS 0 referenced
    [h264 @ 00000296e31c9e80] decode_slice_header error
    [h264 @ 00000296e31c9e80] no frame!
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [h264 @ 00000296e31c9e80] SPS unavailable in decode_picture_timing
    [h264 @ 00000296e31c9e80] non-existing PPS 0 referenced
    [h264 @ 00000296e31c9e80] SPS unavailable in decode_picture_timing
    [h264 @ 00000296e31c9e80] non-existing PPS 0 referenced
    [h264 @ 00000296e31c9e80] decode_slice_header error
    [h264 @ 00000296e31c9e80] no frame!
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [h264 @ 00000296e31c9e80] left block unavailable for requested intra4x4 mode -1
    [h264 @ 00000296e31c9e80] error while decoding MB 0 6, bytestream 150225
    [h264 @ 00000296e31c9e80] concealing 7489 DC, 7489 AC, 7489 MV errors in I frame
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [h264 @ 00000296e31c9e80] concealing 7487 DC, 7487 AC, 7487 MV errors in P frame
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [h264 @ 00000296e31c9e80] cabac decode of qscale diff failed at 64 24
    [h264 @ 00000296e31c9e80] error while decoding MB 64 24, bytestream 15698
    [h264 @ 00000296e31c9e80] concealing 5265 DC, 5265 AC, 5265 MV errors in P frame
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192  0B f=0/0
    [mpegts @ 00000296e31a4880] changing packet size to 204
    [mpegts @ 00000296e31a4880] changing packet size to 192
    [mpegts @ 00000296e31a4880] changing packet size to 204
    Input #0, mpegts, from 'rtp://239.194.115.71:5000':q=    0B f=0/0
     Duration: N/A, start: 67510.427322, bitrate: N/A
     Program 1
       Stream #0:0[0x1011]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
    [h264 @ 00000296e8195180] left block unavailable for requested intra4x4 mode -1
    [h264 @ 00000296e8195180] error while decoding MB 0 6, bytestream 150225
    [h264 @ 00000296e8195180] concealing 7489 DC, 7489 AC, 7489 MV errors in I frame
    [h264 @ 00000296e3235200] concealing 7487 DC, 7487 AC, 7487 MV errors in P frame
    [h264 @ 00000296e3235200] cabac decode of qscale diff failed at 64 24
    [h264 @ 00000296e3235200] error while decoding MB 64 24, bytestream 15698
    [h264 @ 00000296e3235200] concealing 5265 DC, 5265 AC, 5265 MV errors in P frame
    [h264 @ 00000296e819b400] concealing 7425 DC, 7425 AC, 7425 MV errors in P frame
    [h264 @ 00000296e8195180] cabac decode of qscale diff failed at 27 49
    [h264 @ 00000296e8195180] error while decoding MB 27 49, bytestream 5976
    [h264 @ 00000296e8195180] concealing 2302 DC, 2302 AC, 2302 MV errors in P frame
    [h264 @ 00000296e8195180] concealing 4980 DC, 4980 AC, 4980 MV errors in I frame
    [h264 @ 00000296e819b400] concealing 1322 DC, 1322 AC, 1322 MV errors in P frame
    [h264 @ 00000296e3235200] concealing 619 DC, 619 AC, 619 MV errors in P frame
    [h264 @ 00000296e82ce6c0] concealing 6875 DC, 6875 AC, 6875 MV errors in P frame
    [h264 @ 00000296e819b400] concealing 6462 DC, 6462 AC, 6462 MV errors in P frame
    [h264 @ 00000296e819bb80] concealing 4570 DC, 4570 AC, 4570 MV errors in P frame
    [h264 @ 00000296e8195180] concealing 4196 DC, 4196 AC, 4196 MV errors in P frame
    [h264 @ 00000296e819bb80] cabac decode of qscale diff failed at 1 15
    [h264 @ 00000296e819bb80] error while decoding MB 1 15, bytestream 20111
    [h264 @ 00000296e819bb80] concealing 6408 DC, 6408 AC, 6408 MV errors in P frame
    [h264 @ 00000296e8195180] left block unavailable for requested intra mode
    [h264 @ 00000296e8195180] error while decoding MB 0 46, bytestream 59771
    [h264 @ 00000296e8195180] concealing 2689 DC, 2689 AC, 2689 MV errors in I frame
    [h264 @ 00000296e819bb80] concealing 3478 DC, 3478 AC, 3478 MV errors in P frame
    [h264 @ 00000296e819bb80] concealing 6970 DC, 6970 AC, 6970 MV errors in P frame
    [h264 @ 00000296e8195180] concealing 6875 DC, 6875 AC, 6875 MV errors in P frame
    [h264 @ 00000296e8195180] left block unavailable for requested intra4x4 mode -1
    [h264 @ 00000296e8195180] error while decoding MB 0 31, bytestream 92665
    [h264 @ 00000296e8195180] concealing 4489 DC, 4489 AC, 4489 MV errors in I frame
    [h264 @ 00000296e3235200] concealing 2421 DC, 2421 AC, 2421 MV errors in P frame
    [h264 @ 00000296e819b400] concealing 7268 DC, 7268 AC, 7268 MV errors in P frame
    [h264 @ 00000296e3235200] concealing 6889 DC, 6889 AC, 6889 MV errors in P frame
    [h264 @ 00000296e82ce6c0] concealing 4213 DC, 4213 AC, 4213 MV errors in P frame
    [h264 @ 00000296e819bb80] concealing 6255 DC, 6255 AC, 6255 MV errors in P frame
    [h264 @ 00000296e8195180] left block unavailable for requested intra4x4 mode -1
    [h264 @ 00000296e8195180] error while decoding MB 0 2, bytestream 169691
    [h264 @ 00000296e8195180] concealing 7969 DC, 7969 AC, 7969 MV errors in I frame
    [h264 @ 00000296e3235200] concealing 1707 DC, 1707 AC, 1707 MV errors in P frame
    [h264 @ 00000296e82ce6c0] left block unavailable for requested intra mode
    [h264 @ 00000296e82ce6c0] error while decoding MB 0 20, bytestream 16584
    [h264 @ 00000296e82ce6c0] concealing 5809 DC, 5809 AC, 5809 MV errors in P frame
    [h264 @ 00000296e3235200] cabac decode of qscale diff failed at 17 15
    [h264 @ 00000296e3235200] error while decoding MB 17 15, bytestream 18775
    [h264 @ 00000296e3235200] concealing 6392 DC, 6392 AC, 6392 MV errors in P frame

    Wireshark packet dump :

    https://drive.google.com/open?id=1zppjXVgEcL8Ws-xP3e1J7NJF1UGdPzMA

    What could be problem with ffmpeg playing the stream, could it be the codec used ?

  • FFMPEG extracting 1 second resized with copy codec

    28 avril 2019, par boblapointe

    How can I extract 1 second ( using fast seek ) from a video, resize it, using vp9 ? I always get the same errors. Here are the bare bone commands I’m trying :

    ffmpeg -ss 00:00:10 -i test.webm -to 00:00:01 -filter:v "scale=min(iw\,1280):min(ih\,720):force_original_aspect_ratio=decrease" -c:v libvpx-vp9 -y output.webm

    It returns :

    "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)

    After playing around I realize that this will work :

    ffmpeg -ss 00:00:10 -i test.webm -to 00:00:01 -c copy -y output.webm

    Not ideal but at least it works, so I add the filter :

    ffmpeg -ss 00:00:10 -i test.webm -to 00:00:01 -filter:v "scale=min(iw\,1280):min(ih\,720):force_original_aspect_ratio=decrease" -c copy -y output.webm

    Ant then I get :

    "Filtering and streamcopy cannot be used together."

    I’ve tried all kinds of combinations, unsuccessfully. Any hint would be appreciated. Thank you


    Here is the full log of the first command :

        ffmpeg version 3.4.4-0ubuntu0.18.04.1 Copyright (c) 2000-2018 the FFmpeg developers
          built with gcc 7 (Ubuntu 7.3.0-16ubuntu3)
          configuration : —prefix=/usr —extra-version=0ubuntu0.18.04.1 —toolchain=hardened —libdir=/usr/lib/x86_64-linux-gnu —incdir=/usr/include/x86_64-linux-gnu —enable-gpl —disable-stripping —enable-avresample —enable-avisynth —enable-gnutls —enable-ladspa —enable-libass —enable-libbluray —enable-libbs2b —enable-libcaca —enable-libcdio —enable-libflite —enable-libfontconfig —enable-libfreetype —enable-libfribidi —enable-libgme —enable-libgsm —enable-libmp3lame —enable-libmysofa —enable-libopenjpeg —enable-libopenmpt —enable-libopus —enable-libpulse —enable-librubberband —enable-librsvg —enable-libshine —enable-libsnappy —enable-libsoxr —enable-libspeex —enable-libssh —enable-libtheora —enable-libtwolame —enable-libvorbis —enable-libvpx —enable-libwavpack —enable-libwebp —enable-libx265 —enable-libxml2 —enable-libxvid —enable-libzmq —enable-libzvbi —enable-omx —enable-openal —enable-opengl —enable-sdl2 —enable-libdc1394 —enable-libdrm —enable-libiec61883 —enable-chromaprint —enable-frei0r —enable-libopencv —enable-libx264 —enable-shared
          libavutil      55. 78.100 / 55. 78.100
          libavcodec     57.107.100 / 57.107.100
          libavformat    57. 83.100 / 57. 83.100
          libavdevice    57. 10.100 / 57. 10.100
          libavfilter     6.107.100 /  6.107.100
          libavresample   3.  7.  0 /  3.  7.  0
          libswscale      4.  8.100 /  4.  8.100
          libswresample   2.  9.100 /  2.  9.100
          libpostproc    54.  7.100 / 54.  7.100
        Splitting the commandline.
        Reading option ’-ss’ ... matched as option ’ss’ (set the start time offset) with argument ’00:00:10’.
        Reading option ’-i’ ... matched as input url with argument ’test.webm’.
        Reading option ’-to’ ... matched as option ’to’ (record or transcode stop time) with argument ’00:00:01’.
        Reading option ’-filter:v’ ... matched as option ’filter’ (set stream filtergraph) with argument ’scale=min(iw\,1280):min(ih\,720):force_original_aspect_ratio=decrease’.
        Reading option ’-c:v’ ... matched as option ’c’ (codec name) with argument ’libvpx-vp9’.
        Reading option ’-y’ ... matched as option ’y’ (overwrite output files) with argument ’1’.
        Reading option ’-v’ ... matched as option ’v’ (set logging level) with argument ’debug’.
        Reading option ’output.webm’ ... matched as output url.
        Finished splitting the commandline.
        Parsing a group of options : global .
        Applying option y (overwrite output files) with argument 1.
        Applying option v (set logging level) with argument debug.
        Successfully parsed a group of options.
        Parsing a group of options : input url test.webm.
        Applying option ss (set the start time offset) with argument 00:00:10.
        Successfully parsed a group of options.
        Opening an input file : test.webm.
        [NULL @ 0x55ce679f8920] Opening ’test.webm’ for reading
        [file @ 0x55ce679f9340] Setting default whitelist ’file,crypto’
        [matroska,webm @ 0x55ce679f8920] Format matroska,webm probed with size=2048 and score=100
        st:0 removing common factor 1000000 from timebase
        [matroska,webm @ 0x55ce679f8920] Before avformat_find_stream_info() pos : 566 bytes read:32768 seeks:0 nb_streams:1
        [matroska,webm @ 0x55ce679f8920] All info found
        [matroska,webm @ 0x55ce679f8920] After avformat_find_stream_info() pos : 72449 bytes read:72449 seeks:0 frames:1
        Input #0, matroska,webm, from ’test.webm’ :
          Metadata :
            ENCODER : Lavf57.83.100
          Duration : 00:00:15.03, start : 5.016000, bitrate : 1146 kb/s
            Stream #0:0(eng), 1, 1/1000 : Video : vp9 (Profile 0), 1 reference frame, yuv420p(tv), 1280x720, 0/1, SAR 1:1 DAR 16:9, 23.98 fps, 23.98 tbr, 1k tbn, 1k tbc (default)
            Metadata :
              DURATION : 00:00:15.025000000
        Successfully opened the file.
        Parsing a group of options : output url output.webm.
        Applying option to (record or transcode stop time) with argument 00:00:01.
        Applying option filter:v (set stream filtergraph) with argument scale=min(iw\,1280):min(ih\,720):force_original_aspect_ratio=decrease.
        Applying option c:v (codec name) with argument libvpx-vp9.
        Successfully parsed a group of options.
        Opening an output file : output.webm.
        [file @ 0x55ce67b1e820] Setting default whitelist ’file,crypto’
        Successfully opened the file.
        detected 8 logical cores
        Stream mapping :
          Stream #0:0 -> #0:0 (vp9 (native) -> vp9 (libvpx-vp9))
        Press [q] to stop, [?] for help
        cur_dts is invalid (this is harmless if it occurs once at the start per stream)
            Last message repeated 1 times
        [matroska,webm @ 0x55ce679f8920] first_dts 5016 not matching first dts 10395 (pts 10395, duration 41) in the queue
        cur_dts is invalid (this is harmless if it occurs once at the start per stream)
            Last message repeated 6 times
        [Parsed_scale_0 @ 0x55ce67a7c520] Setting ’w’ to value ’min(iw,1280)’
        [Parsed_scale_0 @ 0x55ce67a7c520] Setting ’h’ to value ’min(ih,720)’
        [Parsed_scale_0 @ 0x55ce67a7c520] Setting ’force_original_aspect_ratio’ to value ’decrease’
        [Parsed_scale_0 @ 0x55ce67a7c520] Setting ’flags’ to value ’bicubic’
        [Parsed_scale_0 @ 0x55ce67a7c520] w:min(iw,1280) h:min(ih,720) flags :’bicubic’ interl:0
        [graph 0 input from stream 0:0 @ 0x55ce67a7cea0] Setting ’video_size’ to value ’1280x720’
        [graph 0 input from stream 0:0 @ 0x55ce67a7cea0] Setting ’pix_fmt’ to value ’0’
        [graph 0 input from stream 0:0 @ 0x55ce67a7cea0] Setting ’time_base’ to value ’1/1000’
        [graph 0 input from stream 0:0 @ 0x55ce67a7cea0] Setting ’pixel_aspect’ to value ’1/1’
        [graph 0 input from stream 0:0 @ 0x55ce67a7cea0] Setting ’sws_param’ to value ’flags=2’
        [graph 0 input from stream 0:0 @ 0x55ce67a7cea0] Setting ’frame_rate’ to value ’24000/1001’
        [graph 0 input from stream 0:0 @ 0x55ce67a7cea0] w:1280 h:720 pixfmt:yuv420p tb:1/1000 fr:24000/1001 sar:1/1 sws_param:flags=2
        [format @ 0x55ce67ad7d60] compat : called with args=[yuv420p|yuva420p|yuv422p|yuv440p|yuv444p|gbrp]
        [format @ 0x55ce67ad7d60] Setting ’pix_fmts’ to value ’yuv420p|yuva420p|yuv422p|yuv440p|yuv444p|gbrp’
        [AVFilterGraph @ 0x55ce67aec740] query_formats : 6 queried, 5 merged, 0 already done, 0 delayed
        [Parsed_scale_0 @ 0x55ce67a7c520] w:1280 h:720 fmt:yuv420p sar:1/1 -> w:1280 h:720 fmt:yuv420p sar:1/1 flags:0x4
        [libvpx-vp9 @ 0x55ce67b32200] v1.7.0
        [libvpx-vp9 @ 0x55ce67b32200] —prefix=/usr —enable-pic —enable-shared —disable-install-bins —disable-install-srcs —size-limit=16384x16384 —enable-postproc —enable-multi-res-encoding —enable-temporal-denoising —enable-vp9-temporal-denoising —enable-vp9-postproc —target=x86_64-linux-gcc
        [libvpx-vp9 @ 0x55ce67b32200] vpx_codec_enc_cfg
        [libvpx-vp9 @ 0x55ce67b32200] generic settings
          g_usage :                      0
          g_threads :                    8
          g_profile :                    0
          g_w :                          320
          g_h :                          240
          g_bit_depth :                  8
          g_input_bit_depth :            8
          g_timebase :                   1/30
          g_error_resilient :            0
          g_pass :                       0
          g_lag_in_frames :              25
        [libvpx-vp9 @ 0x55ce67b32200] rate control settings
          rc_dropframe_thresh :          0
          rc_resize_allowed :            0
          rc_resize_up_thresh :          60
          rc_resize_down_thresh :        30
          rc_end_usage :                 0
          rc_twopass_stats_in :          (nil)(0)
          rc_target_bitrate :            256
        [libvpx-vp9 @ 0x55ce67b32200] quantizer settings
          rc_min_quantizer :             0
          rc_max_quantizer :             63
        [libvpx-vp9 @ 0x55ce67b32200] bitrate tolerance
          rc_undershoot_pct :            25
          rc_overshoot_pct :             25
        [libvpx-vp9 @ 0x55ce67b32200] decoder buffer model
          rc_buf_sz :                    6000
          rc_buf_initial_sz :            4000
          rc_buf_optimal_sz :            5000
        [libvpx-vp9 @ 0x55ce67b32200] 2 pass rate control settings
          rc_2pass_vbr_bias_pct :        50
          rc_2pass_vbr_minsection_pct :  0
          rc_2pass_vbr_maxsection_pct :  2000
        [libvpx-vp9 @ 0x55ce67b32200] keyframing settings
          kf_mode :                      1
          kf_min_dist :                  0
          kf_max_dist :                  128
        [libvpx-vp9 @ 0x55ce67b32200]
        [libvpx-vp9 @ 0x55ce67b32200] vpx_codec_enc_cfg
        [libvpx-vp9 @ 0x55ce67b32200] generic settings
          g_usage :                      0
          g_threads :                    0
          g_profile :                    0
          g_w :                          1280
          g_h :                          720
          g_bit_depth :                  8
          g_input_bit_depth :            8
          g_timebase :                   1001/24000
          g_error_resilient :            0
          g_pass :                       0
          g_lag_in_frames :              25
        [libvpx-vp9 @ 0x55ce67b32200] rate control settings
          rc_dropframe_thresh :          0
          rc_resize_allowed :            0
          rc_resize_up_thresh :          60
          rc_resize_down_thresh :        30
          rc_end_usage :                 0
          rc_twopass_stats_in :          (nil)(0)
          rc_target_bitrate :            200
        [libvpx-vp9 @ 0x55ce67b32200] quantizer settings
          rc_min_quantizer :             0
          rc_max_quantizer :             63
        [libvpx-vp9 @ 0x55ce67b32200] bitrate tolerance
          rc_undershoot_pct :            25
          rc_overshoot_pct :             25
        [libvpx-vp9 @ 0x55ce67b32200] decoder buffer model
          rc_buf_sz :                    6000
          rc_buf_initial_sz :            4000
          rc_buf_optimal_sz :            5000
        [libvpx-vp9 @ 0x55ce67b32200] 2 pass rate control settings
          rc_2pass_vbr_bias_pct :        50
          rc_2pass_vbr_minsection_pct :  0
          rc_2pass_vbr_maxsection_pct :  2000
        [libvpx-vp9 @ 0x55ce67b32200] keyframing settings
          kf_mode :                      1
          kf_min_dist :                  0
          kf_max_dist :                  128
        [libvpx-vp9 @ 0x55ce67b32200]
        [libvpx-vp9 @ 0x55ce67b32200] vpx_codec_control
        [libvpx-vp9 @ 0x55ce67b32200]   VP8E_SET_CPUUSED :             1
        [libvpx-vp9 @ 0x55ce67b32200]   VP8E_SET_ARNR_MAXFRAMES :      0
        [libvpx-vp9 @ 0x55ce67b32200]   VP8E_SET_ARNR_STRENGTH :       3
        [libvpx-vp9 @ 0x55ce67b32200]   VP8E_SET_ARNR_TYPE :           3
        [libvpx-vp9 @ 0x55ce67b32200]   VP8E_SET_STATIC_THRESHOLD :    0
        [libvpx-vp9 @ 0x55ce67b32200]   VP9E_SET_COLOR_SPACE :         0
        [libvpx-vp9 @ 0x55ce67b32200]   VP9E_SET_COLOR_RANGE :         0
        [libvpx-vp9 @ 0x55ce67b32200]   VP9E_SET_TARGET_LEVEL :        255
        [libvpx-vp9 @ 0x55ce67b32200] Using deadline : 1000000
        Output #0, webm, to ’output.webm’ :
          Metadata :
            encoder : Lavf57.83.100
            Stream #0:0(eng), 0, 1/1000 : Video : vp9 (libvpx-vp9), 1 reference frame, yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 0/1, q=-1—1, 200 kb/s, 23.98 fps, 1k tbn, 23.98 tbc (default)
            Metadata :
              DURATION : 00:00:15.025000000
              encoder : Lavc57.107.100 libvpx-vp9
            Side data :
              cpb : bitrate max/min/avg : 0/0/0 buffer size : 0 vbv_delay : -1
        cur_dts is invalid (this is harmless if it occurs once at the start per stream)
            Last message repeated 120 times
        [out_0_0 @ 0x55ce67ac35a0] EOF on sink link out_0_0:default.
        No more output streams to write to, finishing.
        [webm @ 0x55ce67b2e2a0] get_metadata_duration returned : 15025000
        [webm @ 0x55ce67b2e2a0] Write early duration from recording time = 1000
        [webm @ 0x55ce67b2e2a0] end duration = 0
        [webm @ 0x55ce67b2e2a0] stream 0 end duration = 0
        frame=    0 fps=0.0 q=0.0 Lsize=       1kB time=00:00:00.00 bitrate=N/A speed=   0x
        video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead : unknown
        Input file #0 (test.webm) :
          Input stream #0:0 (video) : 120 packets read (1031599 bytes) ; 112 frames decoded ;
          Total : 120 packets (1031599 bytes) demuxed
        Output file #0 (output.webm) :
          Output stream #0:0 (video) : 0 frames encoded ; 0 packets muxed (0 bytes) ;
          Total : 0 packets (0 bytes) muxed
        Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)
        112 frames successfully decoded, 0 decoding errors
        [AVIOContext @ 0x55ce67b2e9a0] Statistics : 13 seeks, 9 writeouts
        [AVIOContext @ 0x55ce67a01660] Statistics : 2137508 bytes read, 4 seeks