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2011/7/18 James <wireless@×××××××××××.com> |
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> Leonardo Guilherme <leonardo.guilherme <at> gmail.com> writes: |
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> |
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> > Useful link http://verb3k.wordpress.com/2010/01/26/how-to-do- |
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> proper-screencasts-on-linux/ |
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> |
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> > Leonardo2011/7/18 Mick <michaelkintzios <at> gmail.com> |
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> |
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> OK, I looked at this page and have a few questions on |
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> compiling ffmpeg for screencasts. |
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> |
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> x11grab = qx11grab ?? or use the X flag for ffmpeg????? |
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> |
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> These ubuntu libs are listed as required: So set these flags: |
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> |
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> libx264 just use (ffmpeg) flag x246 |
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> libfaac just use (ffmpeg) flag faac |
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> libvpx just use (ffmpeg) flag vpx |
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> libvorbis just use (ffmpeg) flag vorbis |
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> libxvid just use (ffmpeg) flag xvid |
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> libmp3lame just use (ffmpeg) flag mp3 |
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> libtheora just use (ffmpeg) flag theora |
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> |
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> I have other flags set for ffmpeg. Do you have any other |
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> recommendations for flag setting to enable ffmpeg to be |
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> used for screencasts? |
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> |
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> |
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This is the command I use for screencasts and then encoding the converted |
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video |
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ffmpeg -f alsa -ac 2 -i hw:0,0 -acodec pcm_s16le -f x11grab -r 30 -i :0.0 |
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-vcodec libx264 -vpre lossless_ultrafast -threads 0 raw.mkv |
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ffmpeg -i raw.mkv -acodec libmp3lame -ab 128k -ac 2 -vcodec libx264 -vpre |
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lossless_slow -crf 22 -threads 0 done.mp4 |
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These are my flags for ffmpeg: |
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3dnow 3dnowext X aac alsa bzip2 encode faac hardcoded-tables mmx mmxext mp3 |
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sdl ssse3 theora threads truetype v4l v4l2 vorbis vpx x264 xvid zlib |
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Note that many are unrelated to screencasting. |
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