They can be generated by all decent video decoders. The Y files use twice the resolution of the U and V files. It will use the files: /tmp/test0.Y, /tmp/test0.U, /tmp/test0.V, * You can use YUV files as input: ffmpeg -i /tmp/test%d.Y /tmp/out.mpg * FFmpeg can use any supported file format and protocol as input: 2.3 Video and Audio file format conversion 10 is the x-offset and 20 the y-offset for the grabbing. ffmpeg -f x11grab -vd x11:0.0+10,20 /tmp/out.mpgĠ.0 is display.screen number of your X11 server, same as the DISPLAY environment variable. ffmpeg -f x11grab -vd x11:0.0 /tmp/out.mpgĠ.0 is display.screen number of your X11 server, same as the DISPLAY environment variable. 2.2 X11 grabbingįFmpeg can grab the X11 display. You also have to set the audio recording levels correctly with a standard mixer. Note that you must activate the right video source and channel before launching FFmpeg with any TV viewer such as xawtv ( ) by Gerd Knorr. Quick Start 2.1 Video and Audio grabbingįFmpeg can use a video4linux compatible video source and any Open Sound System audio source: ffmpeg /tmp/out.mpg You usually only have to specify the target bitrate you want.įFmpeg can also convert from any sample rate to any other, and resize video on the fly with a high quality polyphase filter. The command line interface is designed to be intuitive, in the sense that FFmpeg tries to figure out all parameters that can possibly be derived automatically. It can also grab from a live audio/video source. 8.2 Integrating libavcodec or libavformat in your programįFmpeg is a very fast video and audio converter.7.2.5 Crosscompilation for Windows under Cygwin.

7.2.3 Cross compilation for Windows with Linux.

2.3 Video and Audio file format conversion.

Ffmpeg documentation doxygen download