Grabbing from TV in Mencoder fails if mplayer (both 1.0_pre4 and 1.0_pre5) is compiled with --disable-ossaudio (but mplayer works fine, so you can watch TV). USE flag "oss" must be set when compiling with "v4l" or "v4l2". Reproducible: Always Steps to Reproduce: 1. USE="-oss v4l2" emerge mplayer 2. Start grabbing from TV: mencoder -tv driver=v4l2:device=/dev/v4l/video0 tv:// -oac copy -ovc copy -o test.avi Actual Results: v4l2: current audio mode is : MONO ============ Sorry, this file format is not recognized/supported ============= === If this file is an AVI, ASF or MPEG stream, please contact the author! === Cannot open demuxer. Exiting... Expected Results: v4l2: current audio mode is : MONO [V] filefmt:9 fourcc:0x32315659 size:640x480 fps:25.00 ftime:=0.0400 videocodec: framecopy (640x480 24bpp fourcc=32315659) audiocodec: framecopy (format=1 chans=1 rate=44100 bits=16 bps=88200 sample=2) Writing AVI header... ODML: Aspect information not (yet?) available or unspecified, not writing vprp header. Forcing audio preload to 0, max pts correction to 0 Portage 2.0.51-r3 (default-linux/x86/2004.3, gcc-3.3.4, glibc-2.3.4.20040808-r1, 2.6.9-gentoo-r4 i686) ================================================================= System uname: 2.6.9-gentoo-r4 i686 Pentium III (Coppermine) Gentoo Base System version 1.4.16 Autoconf: sys-devel/autoconf-2.59-r5 Automake: sys-devel/automake-1.8.5-r1 Binutils: sys-devel/binutils-2.15.90.0.1.1-r3 Headers: sys-kernel/linux26-headers-2.6.8.1 Libtools: sys-devel/libtool-1.5.2-r7 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CFLAGS="-O2 -march=pentium3 -pipe -fomit-frame-pointer" CHOST="i686-pc-linux-gnu" COMPILER="" CONFIG_PROTECT="/etc /usr/X11R6/lib/X11/xkb /usr/kde/2/share/config /usr/kde/3.3/env /usr/kde/3.3/share/config /usr/kde/3.3/shutdown /usr/kde/3/share/config /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-O2 -march=pentium3 -pipe -fomit-frame-pointer" DISTDIR="/usr/portage/distfiles" FEATURES="autoaddcvs autoconfig ccache distlocks sandbox sfperms" GENTOO_MIRRORS="http://ftp.du.se/pub/os/gentoo http://ftp.ntua.gr/pub/linux/gentoo/" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="X alsa apm arts avi berkdb bzlib cdr crypt cups encode fam fbcon flac foomaticdb gdbm gif gpm gtk2 icq imagemagick imlib jabber jpeg kde libg++ libwww mad mikmod mmx mmx2 mozilla mpeg mysql ncurses nls oggvorbis opengl pam perl png qt quicktime readline samba sdl slang spell sse ssl tcpd tiff truetype unicode x86 xine xml2 xv xvid zlib"
This is still a serious problem with the version of mplayer currently in portage (mplayer-1.0_pre7-r1); I'd suggest to explicit this check in the ebuild itself, so that people don't have to rediscover this problem over and over again. I'm attaching a patch for mplayer-1.0_pre7-r1.ebuild.
Created attachment 75795 [details, diff] Patch for mplayer-1.0_pre7-r1.ebuild
I think this is not really a bug, mencoder can record from alsa, only the correct parameter is needed: mencoder -tv driver=v4l2:device=/dev/v4l/video0:alsa tv:// -oac copy -ovc copy -o test.avi I found it a few months ago, but I forgot this year old bug report...
(In reply to comment #3) > I think this is not really a bug, mencoder can record from alsa, only the > correct parameter is needed: > > mencoder -tv driver=v4l2:device=/dev/v4l/video0:alsa tv:// -oac copy -ovc copy > -o test.avi > > I found it a few months ago, but I forgot this year old bug report... > Agreed, mplayer can record using ALSA or OSS from the sound cards. Depends on the device drivers. Thanks, Lukas
