New submission from aviad rozenhek <avia...@gmail.com>:
when reading MPEG-TS over UDP, libav*/ffmpeg/ffplay reports a lot of
warnings during the probing stage. the warnings stem from the fact that
UDP has no seek, and from the fact that often the first frames of the
stream are not keyframes.
still since these "problems" are to be expected, it would be nice if the
warnings were not generated at all.
here are the warnings:
for MP2 video
[mpegts @ 01d2f6a0] Unable to seek back to the start
[mpeg2video @ 0075f8e0] mpeg_decode_postinit() failure
Last message repeated 67 times
for H.264 video
[mpegts @ 01e1f6a0] Unable to seek back to the start
[h264 @ 01e2b810] non-existing PPS referenced
[h264 @ 01e2b810] non-existing PPS 0 referenced
[h264 @ 01e2b810] decode_slice_header error
[h264 @ 01e2b810] no frame!
[h264 @ 01e2b810] non-existing PPS referenced
[h264 @ 01e2b810] non-existing PPS 0 referenced
[h264 @ 01e2b810] decode_slice_header error
[h264 @ 01e2b810] no frame!
[h264 @ 01e2b810] non-existing PPS referenced
[h264 @ 01e2b810] non-existing PPS 0 referenced
[h264 @ 01e2b810] decode_slice_header error
[h264 @ 01e2b810] no frame!
[h264 @ 01e2b810] non-existing PPS referenced
[h264 @ 01e2b810] non-existing PPS 0 referenced
[h264 @ 01e2b810] decode_slice_header error
[h264 @ 01e2b810] no frame!
[h264 @ 01e2b810] non-existing PPS referenced
[h264 @ 01e2b810] non-existing PPS 0 referenced
[h264 @ 01e2b810] decode_slice_header error
[h264 @ 01e2b810] no frame!
[h264 @ 01e2b810] non-existing PPS referenced
[h264 @ 01e2b810] non-existing PPS 0 referenced
[h264 @ 01e2b810] decode_slice_header error
[h264 @ 01e2b810] no frame!
[h264 @ 01e2b810] non-existing PPS referenced
[h264 @ 01e2b810] non-existing PPS 0 referenced
[h264 @ 01e2b810] decode_slice_header error
[h264 @ 01e2b810] no frame!
[h264 @ 01e2b810] non-existing PPS referenced
[h264 @ 01e2b810] non-existing PPS 0 referenced
[h264 @ 01e2b810] decode_slice_header error
[h264 @ 01e2b810] no frame!
[h264 @ 01e2b810] non-existing PPS referenced
[h264 @ 01e2b810] non-existing PPS 0 referenced
[h264 @ 01e2b810] decode_slice_header error
[h264 @ 01e2b810] no frame!
[h264 @ 01e2b810] non-existing PPS referenced
[h264 @ 01e2b810] non-existing PPS 0 referenced
[h264 @ 01e2b810] decode_slice_header error
[h264 @ 01e2b810] no frame!
[h264 @ 01e2b810] non-existing PPS referenced
[h264 @ 01e2b810] non-existing PPS 0 referenced
[h264 @ 01e2b810] decode_slice_header error
[h264 @ 01e2b810] no frame!
[h264 @ 01e2b810] non-existing PPS referenced
[h264 @ 01e2b810] non-existing PPS 0 referenced
[h264 @ 01e2b810] decode_slice_header error
[h264 @ 01e2b810] no frame!
[h264 @ 01e2b810] non-existing PPS referenced
[h264 @ 01e2b810] non-existing PPS 0 referenced
[h264 @ 01e2b810] decode_slice_header error
[h264 @ 01e2b810] no frame!
[h264 @ 01e2b810] non-existing PPS referenced
[h264 @ 01e2b810] non-existing PPS 0 referenced
[h264 @ 01e2b810] decode_slice_header error
[h264 @ 01e2b810] no frame!
[h264 @ 01e2b810] non-existing PPS referenced
[h264 @ 01e2b810] non-existing PPS 0 referenced
[h264 @ 01e2b810] decode_slice_header error
[h264 @ 01e2b810] no frame!
[h264 @ 01e2b810] non-existing PPS referenced
[h264 @ 01e2b810] non-existing PPS 0 referenced
[h264 @ 01e2b810] decode_slice_header error
[h264 @ 01e2b810] no frame!
[h264 @ 01e2b810] non-existing PPS referenced
[h264 @ 01e2b810] non-existing PPS 0 referenced
[h264 @ 01e2b810] decode_slice_header error
[h264 @ 01e2b810] no frame!
[h264 @ 01e2b810] non-existing PPS referenced
[h264 @ 01e2b810] non-existing PPS 0 referenced
[h264 @ 01e2b810] decode_slice_header error
[h264 @ 01e2b810] no frame!
[h264 @ 01e2b810] non-existing PPS referenced
[h264 @ 01e2b810] non-existing PPS 0 referenced
[h264 @ 01e2b810] decode_slice_header error
[h264 @ 01e2b810] no frame!
[h264 @ 01e2b810] non-existing PPS referenced
[h264 @ 01e2b810] non-existing PPS 0 referenced
[h264 @ 01e2b810] decode_slice_header error
[h264 @ 01e2b810] no frame!
[h264 @ 01e2b810] non-existing PPS referenced
[h264 @ 01e2b810] non-existing PPS 0 referenced
[h264 @ 01e2b810] decode_slice_header error
[h264 @ 01e2b810] no frame!
[h264 @ 01e2b810] non-existing PPS referenced
[h264 @ 01e2b810] non-existing PPS 0 referenced
[h264 @ 01e2b810] decode_slice_header error
[h264 @ 01e2b810] no frame!
[mpegts @ 01e1f6a0] max_analyze_duration reached
[mpegts @ 01e1f6a0] Estimating duration from bitrate, this may be
inaccurate
----------
messages: 13204
priority: normal
status: new
substatus: new
title: libav* reporting unneeded warnings when probing MPEG-TS over UDP
type: bug
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FFmpeg issue tracker <iss...@roundup.ffmpeg.org>
<https://roundup.ffmpeg.org/issue2487>
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