[FFmpeg-trac] #2370(avdevice:open): v4l2 should not need ENUMSTD

[FFmpeg]

#2370: v4l2 should not need ENUMSTD
-------------------------------------+-------------------------------------
             Reporter:  ubitux       |                    Owner:  holden
                 Type:  defect       |                   Status:  open
             Priority:  normal       |                Component:  avdevice
              Version:  git-master   |               Resolution:
             Keywords:  v4l2         |               Blocked By:
  regression                         |  Reproduced by developer:  1
             Blocking:               |
Analyzed by developer:  1            |
-------------------------------------+-------------------------------------

Comment (by mrlika):

 This regression effects DVP-7620HE device driver. Latest ffmpeg throws the
 following error:


 {{{
 ffmpeg -f video4linux2 -i /dev/video1 -an -vcodec copy -s cif  test.h264
 -loglevel verbose
 ffmpeg version git-2013-07-12-0da0caa Copyright (c) 2000-2013 the FFmpeg
 developers
   built on Jul 12 2013 16:55:30 with gcc 4.7 (Ubuntu/Linaro
 4.7.3-1ubuntu1)
   configuration: --enable-libfaac --enable-libmp3lame --enable-nonfree
 --disable-vaapi --enable-shared --enable-libx264 --enable-version3
 --enable-gpl
   libavutil      52. 39.100 / 52. 39.100
   libavcodec     55. 18.102 / 55. 18.102
   libavformat    55. 12.102 / 55. 12.102
   libavdevice    55.  3.100 / 55.  3.100
   libavfilter     3. 80.100 /  3. 80.100
   libswscale      2.  3.100 /  2.  3.100
   libswresample   0. 17.102 /  0. 17.102
   libpostproc    52.  3.100 / 52.  3.100
 [video4linux2,v4l2 @ 0x1467900] fd:3 capabilities:4000001
 [video4linux2,v4l2 @ 0x1467900] Querying the device for the current frame
 size
 [video4linux2,v4l2 @ 0x1467900] Setting frame size to 1920x1080
 [video4linux2,v4l2 @ 0x1467900] ioctl(VIDIOC_ENUMSTD): Invalid argument
 /dev/video1: Invalid argument
 }}}


 Older FFmpeg versions work correct with this device:


 {{{
 ffmpeg -f video4linux2 -i /dev/video1 -an -vcodec copy -s cif  test.h264
 -loglevel verbose
 ffmpeg version 0.8.6-6:0.8.6-1ubuntu2, Copyright (c) 2000-2013 the Libav
 developers
   built on Mar 30 2013 22:20:06 with gcc 4.7.2
   configuration: --arch=amd64 --enable-pthreads --enable-runtime-cpudetect
 --extra-version='6:0.8.6-1ubuntu2' --libdir=/usr/lib/x86_64-linux-gnu
 --prefix=/usr --enable-bzlib --enable-libdc1394 --enable-libfreetype
 --enable-gnutls --enable-libgsm --enable-libpulse --enable-libschroedinger
 --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau
 --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-
 postproc --enable-swscale --enable-libcdio --enable-x11grab
 --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static
   libavutil    51. 22. 1 / 51. 22. 1
   libavcodec   53. 35. 0 / 53. 35. 0
   libavformat  53. 21. 1 / 53. 21. 1
   libavdevice  53.  2. 0 / 53.  2. 0
   libavfilter   2. 15. 0 /  2. 15. 0
   libswscale    2.  1. 0 /  2.  1. 0
   libpostproc  52.  0. 0 / 52.  0. 0
 *** THIS PROGRAM IS DEPRECATED ***
 This program is only provided for compatibility and will be removed in a
 future release. Please use avconv instead.
 [video4linux2 @ 0x1b6a1e0] [4]Capabilities: 4000001
 [video4linux2 @ 0x1b6a1e0] Querying the device for the current frame size
 [video4linux2 @ 0x1b6a1e0] Setting frame size to 1920x1080
 [video4linux2 @ 0x1b6a1e0] Estimating duration from bitrate, this may be
 inaccurate
 Input #0, video4linux2, from '/dev/video1':
   Duration: N/A, start: 1378115441.148443, bitrate: 829440 kb/s
     Stream #0.0: Video: rawvideo, yuyv422, 1920x1080, 829440 kb/s, 25 tbr,
 1000k tbn, 25 tbc
 File 'test.h264' already exists. Overwrite ? [y/N] y
 Output #0, h264, to 'test.h264':
   Metadata:
     encoder         : Lavf53.21.1
     Stream #0.0: Video: rawvideo, yuyv422, 1920x1080, q=2-31, 829440 kb/s,
 90k tbn, 25 tbc
 Stream mapping:
   Stream #0.0 -> #0.0
 Press ctrl-c to stop encoding
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2370#comment:7>
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