Provided by: mythtv-common_29.1+fixes.20180414.329c235-0ubuntu3_amd64 
NAME
mythffmpeg - MythTV FFMpeg helper
DESCRIPTION
ffmpeg version 3.2 Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 7 (Ubuntu 7.3.0-16ubuntu2) configuration: --compile-type=profile --prefix=/usr
--runprefix=/usr --disable-mythlogserver --enable-crystalhd --enable-lirc --enable-audio-alsa
--enable-audio-oss --enable-dvb --enable-ivtv --enable-firewire --enable-joystick-menu
--with-bindings=perl --enable-ffmpeg-pthreads --enable-pic --perl-config-opts='INSTALLDIRS=vendor'
--enable-libvpx --enable-sdl --enable-libmp3lame --enable-libx264 --enable-vdpau
--enable-opengl-video --enable-vaapi libavutil 55. 34.100 / 55. 34.100 libavcodec 57.
64.100 / 57. 64.100 libavformat 57. 56.100 / 57. 56.100 libavdevice 57. 1.100 / 57. 1.100
libavfilter 6. 65.100 / 6. 65.100 libswscale 4. 2.100 / 4. 2.100 libswresample 2.
3.100 / 2. 3.100 libpostproc 54. 1.100 / 54. 1.100
Hyper fast Audio and Video encoder usage: ffmpeg [options] [[infile options] -i infile]... {[outfile
options] outfile}...
Getting help:
-h -- print basic options
-h long -- print more options
-h full -- print all options (including all format and codec specific options, very long)
-h type=name -- print all options for the named decoder/encoder/demuxer/muxer/filter
See man ffmpeg for detailed description of the options.
Print help / information / capabilities: -L show license -h topic show help
-? topic show help -help topic show help --help topic show help -version
show version -buildconf show build configuration -formats show available formats
-devices show available devices -codecs show available codecs -decoders
show available decoders -encoders show available encoders -bsfs show available
bit stream filters -protocols show available protocols -filters show available
filters -pix_fmts show available pixel formats -layouts show standard channel
layouts -sample_fmts show available audio sample formats -colors show available color
names -sources device list sources of the input device -sinks device list sinks of the output
device -hwaccels show available HW acceleration methods
Global options (affect whole program instead of just one file: -loglevel loglevel set logging level -v
loglevel set logging level -report generate a report -max_alloc bytes set maximum
size of a single allocated block -y overwrite output files -n never
overwrite output files -ignore_unknown Ignore unknown stream types -stats print progress
report during encoding -max_error_rate ratio of errors (0.0: no errors, 1.0: 100% error maximum error
rate -bits_per_raw_sample number set the number of bits per raw sample -vol volume change audio
volume (256=normal)
Per-file main options: -f fmt force format -c codec codec name -codec codec
codec name -pre preset preset name -map_metadata outfile[,metadata]:infile[,metadata] set
metadata information of outfile from infile -t duration record or transcode "duration" seconds of
audio/video -to time_stop record or transcode stop time -fs limit_size set the limit file size
in bytes -ss time_off set the start time offset -sseof time_off set the start time offset
relative to EOF -seek_timestamp enable/disable seeking by timestamp with -ss -timestamp time set
the recording timestamp ('now' to set the current time) -metadata string=string add metadata -program
title=string:st=number... add program with specified streams -target type specify target file
type ("vcd", "svcd", "dvd", "dv" or "dv50" with optional prefixes "pal-", "ntsc-" or "film-") -apad
audio pad -frames number set the number of frames to output -filter filter_graph set stream
filtergraph -filter_script filename read stream filtergraph description from a file -reinit_filter
reinit filtergraph on input parameter changes -discard discard -disposition disposition
Video options: -vframes number set the number of video frames to output -r rate set frame
rate (Hz value, fraction or abbreviation) -s size set frame size (WxH or abbreviation)
-aspect aspect set aspect ratio (4:3, 16:9 or 1.3333, 1.7777) -bits_per_raw_sample number set the
number of bits per raw sample -vn disable video -vcodec codec force video codec
('copy' to copy stream) -timecode hh:mm:ss[:;.]ff set initial TimeCode value. -pass n
select the pass number (1 to 3) -vf filter_graph set video filters -ab bitrate audio bitrate
(please use -b:a) -b bitrate video bitrate (please use -b:v) -dn disable data
Audio options: -aframes number set the number of audio frames to output -aq quality set audio
quality (codec-specific) -ar rate set audio sampling rate (in Hz) -ac channels set
number of audio channels -an disable audio -acodec codec force audio codec ('copy'
to copy stream) -vol volume change audio volume (256=normal) -af filter_graph set audio
filters
Subtitle options: -s size set frame size (WxH or abbreviation) -sn disable
subtitle -scodec codec force subtitle codec ('copy' to copy stream) -stag fourcc/tag force
subtitle tag/fourcc -fix_sub_duration fix subtitles duration -canvas_size size set canvas size (WxH
or abbreviation) -spre preset set the subtitle options to the indicated preset