[FFmpeg-devel] Unknown input format: 'video4linux2'
Saurabh Rawat
saurabh.rawat at nexbits.com
Fri Nov 25 12:23:39 CET 2011
HI,
I have cross- compiled the ffmpeg for the ARM board but when I am trying to
run the following command
# ./ffmpeg -f video4linux2 -s 640x480 -r ntsc -i /dev/video1 -qscale 3
/data/out.mpeg
I am gettign this error :
Fmpeg version UNKNOWN, Copyright (c) 2000-2010 the FFmpeg developers
built on Nov 25 2011 12:58:56 with gcc 4.4.3
configuration: --target-os=linux --cross-prefix=arm-linux-androideabi-
--arch=arm
--sysroot=/home/nexbits/Downloads/marvel_Android/android-ndk/platforms/android-3/arch-arm
--soname-prefix=/data/data/com.nexbits/lib/ --enable-shared
--disable-symver --enable-small --optimization-flags=-O2
--disable-everything --enable-encoder=mpeg2video
--enable-encoder=nellymoser --prefix=../build/ffmpeg/armeabi
--extra-cflags= --extra-ldflags=
libavutil 50.34. 0 / 50.34. 0
libavcore 0.16. 0 / 0.16. 0
libavcodec 52.99. 1 / 52.99. 1
libavformat 52.88. 0 / 52.88. 0
libavdevice 52. 2. 2 / 52. 2. 2
libavfilter 1.69. 0 / 1.69. 0
libswscale 0.12. 0 / 0.12. 0
Unknown input format: 'video4linux2'
I have already connected my UVC USB camera (/dev/video1) ,and chmoded the
device node(/dev/video1), PLz suggest
Plz Assit.
Rgds,
Saurabh
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