2009/7/27 Javier Agustìn Fernàndez Arroyo <[email protected]>: > and how can i know it?
Since I originally responded, I feel obliged to respond, but my answer is that I do not know from memory. I rarely deal with V4L2 myself instead working mainly in the FireWire space. I think if you post this to the forums at kdenlive.org site, you might get more help since there are more people, and this mailing list is mostly just developers. I see from the model spec page you posted in the link that the camera supports MJPEG as YUY2. YUY2 is uncompressed, but not not MJPEG. I would say you have to figure out how to put it into YUY2 mode, but I do not know how. So, please looking around for general V4L info/utilities or ask on the forums. > On Mon, Jul 27, 2009 at 8:09 PM, Dan Dennedy <[email protected]> wrote: >> >> ffmpeg only supports uncompressed via V4L(2). Please lookup what >> formats your webcam provides. >> >> 2009/7/27 Javier Agustìn Fernàndez Arroyo <[email protected]>: >> > 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: >> > >> > elh...@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. >> > elh...@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 >> > [email protected] >> > https://lists.sourceforge.net/lists/listinfo/kdenlive-devel >> > >> > >> >> >> >> -- >> +-DRD-+ >> >> >> ------------------------------------------------------------------------------ >> _______________________________________________ >> Kdenlive-devel mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/kdenlive-devel > > > ------------------------------------------------------------------------------ > > _______________________________________________ > Kdenlive-devel mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/kdenlive-devel > > -- +-DRD-+ ------------------------------------------------------------------------------ _______________________________________________ Kdenlive-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/kdenlive-devel
