[FFmpeg-trac] #3728(avdevice:new): v4l TV Sound Problem: Silent Sound In Captured File
FFmpeg
trac at avcodec.org
Thu Jun 19 17:25:07 CEST 2014
#3728: v4l TV Sound Problem: Silent Sound In Captured File
-------------------------------------+-------------------------------------
Reporter: llarevo | Owner:
Type: defect | Status: new
Priority: normal | Component: avdevice
Version: unspecified | Resolution:
Keywords: v4l sound | Blocked By:
mute | Reproduced by developer: 0
Blocking: |
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Changes (by llarevo):
* keywords: v4l2 => v4l sound mute
Comment:
With current GIT I have a problem with alsa.
Minimum configuration
{{{
/usr/local/bin/ffmpeg -f alsa -i hw:1 -f video4linux2 -i /dev/video0
-aspect 4/3 -f vob -target pal-dvd out.mpg
ffmpeg version N-64078-g47c8d1e Copyright (c) 2000-2014 the FFmpeg
developers
built on Jun 19 2014 16:32:27 with gcc 4.8.2 (GCC) 20131212 (Red Hat
4.8.2-7)
configuration: --prefix=/usr/local --enable-ffplay --enable-libv4l2
libavutil 52. 89.100 / 52. 89.100
libavcodec 55. 67.100 / 55. 67.100
libavformat 55. 44.100 / 55. 44.100
libavdevice 55. 13.101 / 55. 13.101
libavfilter 4. 8.100 / 4. 8.100
libswscale 2. 6.100 / 2. 6.100
libswresample 0. 19.100 / 0. 19.100
Unknown input format: 'alsa'
}}}
Similar compile options as ffmpeg in fedora-package:
{{{
/usr/local/bin/ffmpeg -f alsa -i hw:1 -f video4linux2 -i /dev/video0
-aspect 4/3 -format vob -target pal-dvd out.mpg
ffmpeg version N-64078-g47c8d1e Copyright (c) 2000-2014 the FFmpeg
developers
built on Jun 19 2014 17:20:25 with gcc 4.8.2 (GCC) 20131212 (Red Hat
4.8.2-7)
configuration: --prefix=/usr/local --bindir=/usr/local/bin
--datadir=/usr/local/share/ffmpeg --incdir=/usr/local/include/ffmpeg
--libdir=/usr/local/lib64 --mandir=/usr/local/share/man --arch=x86_64
--optflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions
-fstack-protector --param=ssp-buffer-size=4 -grecord-gcc-switches -m64
-mtune=generic' --enable-bzlib --disable-crystalhd --enable-frei0r
--enable-gnutls --enable-libass --enable-libcelt --enable-libdc1394
--disable-indev=jack --enable-libfreetype --enable-libgsm --enable-
libmp3lame --enable-openal --enable-libopencv --enable-libopenjpeg
--enable-libopus --enable-libpulse --enable-libschroedinger --enable-
libspeex --enable-libtheora --enable-libvorbis --enable-libv4l2 --enable-
libvpx --enable-libx264 --enable-libxvid --enable-x11grab --enable-
avfilter --enable-avresample --enable-postproc --enable-pthreads
--disable-static --enable-shared --enable-gpl --disable-debug --disable-
stripping --shlibdir=/usr/local/lib64 --enable-runtime-cpudetect
libavutil 52. 89.100 / 52. 89.100
libavcodec 55. 67.100 / 55. 67.100
libavformat 55. 44.100 / 55. 44.100
libavdevice 55. 13.101 / 55. 13.101
libavfilter 4. 8.100 / 4. 8.100
libavresample 1. 3. 0 / 1. 3. 0
libswscale 2. 6.100 / 2. 6.100
libswresample 0. 19.100 / 0. 19.100
libpostproc 52. 3.100 / 52. 3.100
Unknown input format: 'alsa'
}}}
Maybe I messed up the compiling procedure. In this case please give me
some advice. Then I can do some further testing on request.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/3728#comment:3>
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