FFmpeg encoding fails with codec - but works without -

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i have made install ffmpeginstaller..

this version installed:  ffmpeg version n-54523-ga71832f-syslint built on jul  7 2013 12:16:34 gcc 4.4.7 (gcc) 20120313 (red hat 4.4.7-3) configuration: --prefix=/usr/local/cpffmpeg --enable-shared --enable-nonfree --enable-gpl    --enable-pthread              s --enable-libopencore-amrnb --enable-decoder=liba52 --enable-  libopencore-amrwb --enable-libfaac --enable-              libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --extra-cflags=-i/usr/l              ocal/cpffmpeg/include/ --extra-ldflags=-l/usr/local/cpffmpeg/lib --enable-version3 --extra-version=syslint libavutil      52. 38.100 / 52. 38.100 libavcodec     55. 18.102 / 55. 18.102 libavformat    55. 11.101 / 55. 11.101 libavdevice    55.  2.100 / 55.  2.100 libavfilter     3. 78.103 /  3. 78.103 libswscale      2.  3.100 /  2.  3.100 libswresample   0. 17.102 /  0. 17.102 libpostproc    52.  3.100 / 52.  3.100

this works:

ffmpeg -i freescreenvideorecordervideo.avi -ar 22050 -ab 32 -f mp4 -s 1280x720 video3.mp4

working codec not work :

ffmpeg -y -i  freescreenvideorecordervideo.avi -r 30000/1001 -b 2m -bt 4m -vcodec libx264 -pass 1 -vpre fastfirstpass -an output.mp4

what can doing wrong ?


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