man ffmpeg2theora (Commandes) - command-line converter to create Ogg Theora and Ogg Vorbis files.

NAME

ffmpeg2theora - command-line converter to create Ogg Theora and Ogg Vorbis files.

ffmpeg2theora [options] inputfile

This manual page documents briefly the ffmpeg2theora command.

ffmpeg2theora is a program that converts any media file that ffmpeg can decode to Ogg Theora for video and Ogg Vorbis for audio.

To read from standard input, specify `-' as the input filename.

These programs follow the usual GNU command line syntax, with long options starting with two dashes (`-'). A summary of options is included below.

-o, --output: Specify the output filename. If no output filename is specified, output will be written to inputfile.ogg. To output to standard output, specify /dev/stdout as the output file.
-s, --starttime: Start encoding at this time (in seconds).
-e, --endtime: End encoding at this time (in seconds).
-p, --v2v-preset: Encode file with v2v preset. Right now, there is preview and pro. Run â€œffmpeg2theora -p infoâ€ for more information.

-v, --videoquality: [0 to 10] Set encoding quality for video (default: 5).
-V, --videobitrate: [1 to 16000] Set encoding bitrate for video (in kb/s).
--optimize: Optimize output Theora video, using a full search for motion vectors instead of a hierarchical one. This can reduce video bitrate about 5%, but it is slower and therefore is disabled by default.
-x, --width: Scale to given width (in pixels).
-y, --height: Scale to given height (in pixels).
--aspect: Define frame aspect ratio (e.g. 4:3, 16:9).
--croptop, --cropbottom, --cropleft, --cropright: Crop input by given pixels before resizing.
-S, --sharpness: [0 to 2] Sharpness of images (default: 2). Note: lower values make the video sharper.
-K, --keyint: [8 to 65536] Set keyframe interval (default: 64).

--deinterlace: Force deinterlace. Otherwise only material marked as interlaced will be deinterlaced.
-f, --format: Specify input format.
--v4l /dev/video0: read data from v4l device /dev/video0, you have to specify an output file with -o.
--inputfps: Override input fps.
--audiostream id: By default the last audio stream is selected, use this to select another audio stream.
--sync: Use A/V sync from input container. Since this does not work with all input format you have to manualy enable it if you have issues with A/V sync.

ffmpeg2theora was written by jan gerber <j@v2v.cc>.

This manual page was written by Hubert Chan <hubert@uhoreg.ca>, for the Debian project (but may be used by others).