Here is my output from ffmpeg -f alsa -i default -f v4l2 -s 640x480 -i
/dev/video0 -acodec flac -vcodec libx264 output.mkv
ffmpeg version 3.3.3-1ubuntu1 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 6.4.0 (Ubuntu 6.4.0-2ubuntu1) 20170724
configuration: --prefix=/usr --extra-version=1ubuntu1
--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-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 --enable-openal
--enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883
--enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264
--enable-shared
libavutil 55. 58.100 / 55. 58.100
libavcodec 57. 89.100 / 57. 89.100
libavformat 57. 71.100 / 57. 71.100
libavdevice 57. 6.100 / 57. 6.100
libavfilter 6. 82.100 / 6. 82.100
libavresample 3. 5. 0 / 3. 5. 0
libswscale 4. 6.100 / 4. 6.100
libswresample 2. 7.100 / 2. 7.100
libpostproc 54. 5.100 / 54. 5.100
Guessed Channel Layout for Input Stream #0.0 : stereo
Input #0, alsa, from 'default':
Duration: N/A, start: 1502723857.171781, bitrate: 1536 kb/s
Stream #0:0: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
[video4linux2,v4l2 @ 0x3ddca87320] Dequeued v4l2 buffer contains 32756
bytes, but 614400 were expected. Flags: 0x00012001.
Input #1, video4linux2,v4l2, from '/dev/video0':
Duration: N/A, bitrate: 147456 kb/s
Stream #1:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 640x480,
147456 kb/s, 30 fps, 30 tbr, 1000k tbn, 1000k tbc
Stream mapping:
Stream #1:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
Stream #0:0 -> #0:1 (pcm_s16le (native) -> flac (native))
Press [q] to stop, [?] for help
[video4linux2,v4l2 @ 0x3ddca87320] Dequeued v4l2 buffer contains 32534
bytes, but 614400 were expected. Flags: 0x00012001.
/dev/video0: Invalid data found when processing input
[alsa @ 0x3ddca6a520] Thread message queue blocking; consider raising the
thread_queue_size option (current value: 8)
frame= 0 fps=0.0 q=0.0 size= 0kB time=-577014:32:22.77 bitrate=
-0.0kbframe= 0 fps=0.0 q=0.0 size= 0kB time=-577014:32:22.77
bitrate= -0.0kbframe= 0 fps=0.0 q=0.0 size= 0kB
time=-577014:32:22.77 bitrate= -0.0kbframe= 0 fps=0.0 q=0.0 size=
0kB time=-577014:32:22.77 bitrate= -0.0kbframe= 0 fps=0.0 q=0.0 size=
0kB time=-577014:32:22.77 bitrate= -0.0kbframe= 0 fps=0.0 q=0.0
size= 0kB time=-577014:32:22.77 bitrate= -0.0kbframe= 0 fps=0.0
q=0.0 size= 0kB time=-577014:32:22.77 bitrate= -0.0kbframe= 0
fps=0.0 q=0.0 size= 0kB time=-577014:32:22.77 bitrate= -0.0kbframe=
0 fps=0.0 q=0.0 size= 0kB time=-577014:32:22.77 bitrate=
-0.0kbframe= 0 fps=0.0 q=0.0 size= 0kB time=-577014:32:22.77
bitrate= -0.0kbframe= 0 fps=0.0 q=0.0 size= 0kB
time=-577014:32:22.77 bitrate= -0.0kbframe= 0 fps=0.0 q=0.0 size=
0kB time=-577014:32:22.77 bitrate= -0.0kbframe= 0 fps=0.0 q=0.0 size=
0kB time=-577014:32:22.77 bitrate= -0.0kbframe= 0 fps=0.0 q=0.0
size= 0kB time=-577014:32:22.77 bitrate= -0.0kbframe= 0 fps=0.0
q=0.0 size= 0kB time=-577014:32:22.77 bitrate= -0.0kbframe= 0
fps=0.0 q=0.0 size= 0kB time=-577014:32:22.77 bitrate= -0.0kbframe=
0 fps=0.0 q=0.0 size= 0kB time=-577014:32:22.77 bitrate=
-0.0kbframe= 0 fps=0.0 q=0.0 size= 0kB time=-577014:32:22.77
bitrate= -0.0kbframe= 0 fps=0.0 q=0.0 size= 0kB
time=-577014:32:22.77 bitrate= -0.0kbframe= 0 fps=0.0 q=0.0 size=
0kB time=-577014:32:22.77 bitrate= -0.0kbframe= 0 fps=0.0 q=0.0 size=
0kB time=-577014:32:22.77 bitrate= -0.0kbframe= 0 fps=0.0 q=0.0
size= 0kB time=-577014:32:22.77 bitrate= -0.0kbToo many packets
buffered for output stream 0:1.
Conversion failed!
Kai-Heng Feng <kai.heng.f...@canonical.com> schrieb am So., 13. Aug. 2017
um 17:25 Uhr:
> Okay, the error happens in avcodec_send_packet() or
> avcodec_receive_frame().
> Needs to find out what ffmpeg did here...
>
> ** Also affects: ffmpeg (Ubuntu)
> Importance: Undecided
> Status: New
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1708922
>
> Title:
> uvcvideo module does not work with Dell XPS 12 webcam
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/ffmpeg/+bug/1708922/+subscriptions
>
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You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1708922
Title:
uvcvideo module does not work with Dell XPS 12 webcam
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/ffmpeg/+bug/1708922/+subscriptions
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