[FFmpeg-trac] #8413(avformat:new): Demuxing embedded H.264 frames from mjpeg stream from Logitech webcam

[FFmpeg]

#8413: Demuxing embedded H.264 frames from mjpeg stream from Logitech webcam
-------------------------------------+------------------------------------
             Reporter:  cmeister2    |                    Owner:
                 Type:  enhancement  |                   Status:  new
             Priority:  normal       |                Component:  avformat
              Version:  git-master   |               Resolution:
             Keywords:  mjpeg h264   |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+------------------------------------

Comment (by cmeister2):

 {{{
 pi at octopi:~ $ ffmpeg -f v4l2 -input_format mjpeg -i /dev/video0 -c:v copy
 -fs 2400k -f rawvideo h264mjpeg
 ffmpeg version 3.2.10-1~deb9u1+rpt1 Copyright (c) 2000-2018 the FFmpeg
 developers
   built with gcc 6.3.0 (Raspbian 6.3.0-18+rpi1) 20170516
   configuration: --prefix=/usr --extra-version='1~deb9u1+rpt1'
 --toolchain=hardened --libdir=/usr/lib/arm-linux-gnueabihf
 --incdir=/usr/include/arm-linux-gnueabihf --enable-gpl --disable-stripping
 --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa
 --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca
 --enable-libcdio --enable-libebur128 --enable-libflite --enable-
 libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme
 --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-
 libopenmpt --enable-libopus --enable-libpulse --enable-librubberband
 --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-libxvid --enable-libzmq --enable-libzvbi --enable-omx-rpi
 --enable-mmal --enable-openal --enable-opengl --enable-sdl2 --enable-
 libdc1394 --enable-libiec61883 --enable-chromaprint --enable-frei0r
 --enable-libopencv --enable-libx264 --enable-shared
   libavutil      55. 34.101 / 55. 34.101
   libavcodec     57. 64.101 / 57. 64.101
   libavformat    57. 56.101 / 57. 56.101
   libavdevice    57.  1.100 / 57.  1.100
   libavfilter     6. 65.100 /  6. 65.100
   libavresample   3.  1.  0 /  3.  1.  0
   libswscale      4.  2.100 /  4.  2.100
   libswresample   2.  3.100 /  2.  3.100
   libpostproc    54.  1.100 / 54.  1.100
 Input #0, video4linux2,v4l2, from '/dev/video0':
   Duration: N/A, start: 45054.742469, bitrate: N/A
     Stream #0:0: Video: mjpeg, yuvj422p(pc, bt470bg/unknown/unknown),
 1920x1080, -5 kb/s, 30 fps, 30 tbr, 1000k tbn, 1000k tbc
 Output #0, rawvideo, to 'h264mjpeg':
   Metadata:
     encoder         : Lavf57.56.101
     Stream #0:0: Video: mjpeg, yuvj422p(pc, bt470bg/unknown/unknown),
 1920x1080, q=2-31, -5 kb/s, 30 fps, 30 tbr, 1000k tbn, 1000k tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (copy)
 Press [q] to stop, [?] for help
 frame=    9 fps=0.0 q=-1.0 Lsize=    2393kB time=00:00:00.39
 bitrate=49509.1kbits/s speed=   1x
 video:2393kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 0.000000%
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/8413#comment:2>
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