[FFmpeg-trac] #8198(avformat:new): mpjpeg demuxer is detected but does not work
FFmpeg
trac at avcodec.org
Wed Sep 25 02:29:21 EEST 2019
#8198: mpjpeg demuxer is detected but does not work
-------------------------------------+-------------------------------------
Reporter: cehoyos | Owner:
Type: defect | Status: new
Priority: important | Component: avformat
Version: git- | Keywords: mjpeg
master | mpjpeg regression
Blocked By: | Blocking:
Reproduced by developer: 0 | Analyzed by developer: 0
-------------------------------------+-------------------------------------
mpv issue 6964, not directly related to #5023 afaict.
A sample was provided that does work with `-f mjpeg`, does not work since
6dc1d5f87ced885d748f8d0c7bfbc5ff6471483f when the sample was first
detected as mpjpeg.
{{{
$ ffmpeg -i ztpl.idontkn -f null -
ffmpeg version N-94961-g1d86e4b3eb Copyright (c) 2000-2019 the FFmpeg
developers
built with clang version 8.0.1 (tags/RELEASE_801/final 366581)
configuration: --cc=clang --enable-gpl --enable-gnutls --enable-libxml2
--enable-libx264 --enable-libx265 --enable-libvpx --enable-libaom
--enable-libdavs2
libavutil 56. 35.100 / 56. 35.100
libavcodec 58. 57.100 / 58. 57.100
libavformat 58. 32.104 / 58. 32.104
libavdevice 58. 9.100 / 58. 9.100
libavfilter 7. 58.102 / 7. 58.102
libswscale 5. 6.100 / 5. 6.100
libswresample 3. 6.100 / 3. 6.100
libpostproc 55. 6.100 / 55. 6.100
Input #0, mpjpeg, from 'ztpl.idontkn':
Duration: N/A, bitrate: N/A
Stream #0:0: Video: mjpeg (Baseline), yuvj420p(pc,
bt470bg/unknown/unknown), 638x478 [SAR 1:1 DAR 319:239], 25 tbr, 25 tbn,
25 tbc
Stream mapping:
Stream #0:0 -> #0:0 (mjpeg (native) -> wrapped_avframe (native))
Press [q] to stop, [?] for help
ztpl.idontkn: corrupt input packet in stream 0
Output #0, null, to 'pipe:':
Metadata:
encoder : Lavf58.32.104
Stream #0:0: Video: wrapped_avframe, yuvj420p, 638x478 [SAR 1:1 DAR
319:239], q=2-31, 200 kb/s, 25 fps, 25 tbn, 25 tbc
Metadata:
encoder : Lavc58.57.100 wrapped_avframe
frame= 1 fps=0.0 q=-0.0 Lsize=N/A time=00:00:00.04 bitrate=N/A
speed=23.2x
video:1kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: unknown
}}}
The sample contains 95 frames.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/8198>
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