Error: Could not find video grab device - need help
Hi all, 1st of all, im Linux noob. Im running Fedora Core 3. I try to put my camera onthe web by using ffserver and ffmpeg. I can see the aoutput using xawtv, so my camera was OK. As root, i run ffserver....and ffserver started. But when i run.... ... [root at xxx]# ffmpeg -vd '/dev/video0' -an http://localhost:8090/feed1.ffm ffmpeg version 0.4.9-pre1, build 4730, Copyright (c) 2000-2004 Fabrice Bellard configuration: --build=i686-redhat-linux-gnu --host=i686-redhat-linux-gnu --target=i386-redhat-linux-gnu --program-prefix= --prefix=/usr --exec-prefix=/usr --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc --datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib --libexecdir=/usr/libexec --localstatedir=/var --sharedstatedir=/usr/com --mandir=/usr/share/man --infodir=/usr/share/info --extra-cflags=-O2 -g -pipe -m32 -march=i386 -mtune=pentium4 --enable-mp3lame --enable-vorbis --enable-faad --enable-faac --enable-xvid --enable-pp --enable-shared-pp --enable-shared --enable-gpl --disable-strip built on Nov 16 2004 11:18:55, gcc: 3.4.2 20041017 (Red Hat 3.4.2-6.fc3) [video4linux @ 0xb85428]Fatal: grab device does not support suitable format Could not find video grab device What going wrong?? Help me please :(. Thanx in advance. -- regards, kamarudin samsudin
On Thu, Apr 21, 2005 at 01:45:20AM +0100, kamarudin samsudin wrote:
[root at xxx]# ffmpeg -vd '/dev/video0' -an http://localhost:8090/feed1.ffm
What going wrong?? Help me please :(.
Let me repeat that. I did cvs update today and I'm having the same problem. ffmpeg doesn't grab video with the default options as advertized in the manpage (which is also in cvs). $ ~/src/ffmpeg/ffmpeg file.mpg FFmpeg version CVS, Copyright (c) 2000-2004 Fabrice Bellard configuration: --enable-libogg --enable-vorbis --enable-a52 --enable-pp --enable-gpl libavcodec version: 51.1.0 libavformat version: 50.0.0 built on Jan 18 2006 10:09:25, gcc: 3.3.5 (Debian 1:3.3.5-13) Could not find video grab device $ Then I tried: strace ~/src/ffmpeg/ffmpeg /tmp/out.mpg >log.txt 2>&1 Strace showed that ffmpeg didn't even try to open /dev/video.
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kamarudin@gmail.com -
mijutu@utu.fi