Information
-codecs Display codecs
-formats Display formats
-f fmt Force format "fmt"
-i filename Set input file name
-y Overwrite output file
-t secs Force duration to specific length (hh:mm:ss[.xxx] syntax works)
-fs limit Set file size limit
-ss secs Seek to given time position (hh:mm:ss[.xxx] syntax works)
-target type Specify target type ("vcd", "svcd", "dvd", "dv", "dv50", "pal-vcd" etc) ... all the format options are set automatically
Video
-b bitrate Video bitrate in bps
-r fps Set frame rate (default 25)
-s WxH Set frame size (default same as source)
-aspect aspect Set aspect ratio (4:3, 16:9 etc)
-vn Disable video
-sameq Same quality as input (implies VBR)
-pass n Multipass rendering (1 or 2)
-vcodec Force video codec
Audio
-ar freq Audio frequency (default 44100 Hz)
-ab bitrate Audio bitrate in bps (default 64k)
-aq quality Audio quality (codec-specific, VBR)
-ac channels Audio channels
-an Disable audio
-acodec Force audio codec
Subtitles
-scodec Force subtitle codec ("copy" to copy stream)
-sn Disable subtitles
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