Provided by: mythtv-common_31.0+fixes.20200323.9579662cdc-0ubuntu1_amd64 
NAME
mythffmpeg - MythTV FFMpeg helper
DESCRIPTION
ffmpeg version 4.2.1 Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 9 (Ubuntu 9.3.0-7ubuntu1) configuration: --arch=x86
--sysinclude=/usr/include --cc='ccache gcc' --cxx='ccache g++' --ld=gcc
--cpu=generic --target_os=linux --pkg_config=pkg-config --prefix=/usr
--libdir=/usr/lib --as=gcc --objcc=gcc --dep_cc=gcc --host_cc=gcc --host_ld=gcc
--disable-cross-compile --enable-libmp3lame --enable-libx264 --disable-libx265
--enable-libvpx --disable-libxvid --enable-vdpau --enable-libxml2 --enable-libass
--disable-dxva2 --enable-libbluray --disable-libfontconfig --disable-libfreetype
--disable-libiec61883 --disable-crystalhd --enable-sdl2 --enable-ffplay
--enable-vaapi --extra-cflags=' -w' --extra-ldflags= --enable-stripping
--strip='echo skipping strip' --disable-manpages --disable-podpages --disable-doc
--disable-nvenc --enable-shared --disable-static --enable-gpl --enable-pic
--disable-demuxer=mpegtsraw --disable-indev=dshow libavutil 56. 31.100 / 56.
31.100 libavcodec 58. 54.100 / 58. 54.100 libavformat 58. 29.100 / 58.
29.100 libavdevice 58. 8.100 / 58. 8.100 libavfilter 7. 57.100 / 7.
57.100 libswscale 5. 5.100 / 5. 5.100 libswresample 3. 5.100 / 3.
5.100 libpostproc 55. 5.100 / 55. 5.100
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/bsf
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 -muxers show available muxers
-demuxers show available demuxers -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 -filter_threads number of non-complex filter threads
-filter_complex_threads number of threads for -filter_complex -stats print
progress report during encoding -max_error_rate maximum error rate ratio of errors (0.0:
no errors, 1.0: 100% errors) above which ffmpeg returns an error instead of success.
-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
mythffmpeg 31.0+fixes.20200323.9579662cdc-0uMarch12020 MYTHFFMPEG(1)