[Kdenlive-devel] i cant capture with my webcam

Javier Agustìn Fernàndez Arroyo elhoir at gmail.com
Mon Jul 27 18:41:05 UTC 2009


and how can i know it?

On Mon, Jul 27, 2009 at 8:09 PM, Dan Dennedy <dan at dennedy.org> wrote:

> ffmpeg only supports uncompressed via V4L(2). Please lookup what
> formats your webcam provides.
>
> 2009/7/27 Javier Agustìn Fernàndez Arroyo <elhoir at gmail.com>:
> > hello,
> > i dont know if this is the corerct way for reporting problems... but let
> me
> > explain..
> >
> > i have recently bought a webcam, and it works in videolan, using the
> > video4linux 2 setting. The device file is /dev/video0.
> >
> > But in kdenlive, it shows "broken capture. Please check params"
> >
> > this is the kdenlive log when i try to capture:
> >
> > kdenlive(9822) RecMonitor::slotRecord: Capture: Running ffmpeg  "-f
> > video4linux2 -s 320x240 -r 15 -i /dev/video0 -qscale 1 -ab 224k -vcodec
> > mpeg4 -acodec mp2 -y /home/elhoir/capture0000.mp4 -f mpegts -vcodec mpeg4
> > -acodec mp2 -"
> > kdenlive(9822) RecMonitor::slotRecord: Capture: Running ffplay  "-f
> mpegts
> > -x 465 -y 124 -"
> >
> > When running it in the command line, i get this:
> >
> > elhoir at elhoir-desktop:~$ ffmpeg  -f video4linux2 -s 320x240 -r 15 -i
> > /dev/video0 -qscale 1 -ab 224k -vcodec mpeg4 -acodec mp2 -y
> > /home/elhoir/capture0000.mp4 -f mpegts -vcodec mpeg4 -acodec mp2 -
> > FFmpeg version 0.5-svn17737+3:0.svn20090303-1ubuntu6, Copyright (c)
> > 2000-2009 Fabrice Bellard, et al.
> >   configuration: --enable-gpl --enable-postproc --enable-swscale
> > --enable-x11grab --extra-version=svn17737+3:0.svn20090303-1ubuntu6
> > --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-libgsm
> > --enable-libschroedinger --enable-libspeex --enable-libtheora
> > --enable-libvorbis --enable-pthreads --disable-stripping --disable-vhook
> > --enable-libdc1394 --disable-armv5te --disable-armv6 --disable-armv6t2
> > --disable-armvfp --disable-neon --disable-altivec --disable-vis
> > --enable-shared --disable-static
> >   libavutil     49.15. 0 / 49.15. 0
> >   libavcodec    52.20. 0 / 52.20. 0
> >   libavformat   52.31. 0 / 52.31. 0
> >   libavdevice   52. 1. 0 / 52. 1. 0
> >   libavfilter    0. 4. 0 /  0. 4. 0
> >   libswscale     0. 7. 1 /  0. 7. 1
> >   libpostproc   51. 2. 0 / 51. 2. 0
> >   built on Apr 10 2009 23:18:41, gcc: 4.3.3
> > [video4linux2 @ 0x833fac0][3]Capabilities: 4000001
> > [video4linux2 @ 0x833fac0]Cannot find a proper format.
> > /dev/video0: I/O error occurred
> > Usually that means that input file is truncated and/or corrupted.
> > elhoir at elhoir-desktop:~$
> >
> > Can anyone help me? Many thanks
> >
> > The params string in kdenlive is this:
> >
> >  -f video4linux2 -s 320x240 -r 15 -i /dev/video0
> >
> > Im using Ubuntu 9.04, and kdenlive 0.7.3 (too old?)
> >
> >
> ------------------------------------------------------------------------------
> >
> > _______________________________________________
> > Kdenlive-devel mailing list
> > Kdenlive-devel at lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/kdenlive-devel
> >
> >
>
>
>
> --
> +-DRD-+
>
>
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