FFPLAY(1)FFPLAY(1)NAMEffplay - FFplay media player
SYNOPSISffplay [options] [input_file]
DESCRIPTION
FFplay is a very simple and portable media player using the FFmpeg
libraries and the SDL library. It is mostly used as a testbed for the
various FFmpeg APIs.
OPTIONS
All the numerical options, if not specified otherwise, accept a string
representing a number as input, which may be followed by one of the SI
unit prefixes, for example: 'K', 'M', or 'G'.
If 'i' is appended to the SI unit prefix, the complete prefix will be
interpreted as a unit prefix for binary multiplies, which are based on
powers of 1024 instead of powers of 1000. Appending 'B' to the SI unit
prefix multiplies the value by 8. This allows using, for example: 'KB',
'MiB', 'G' and 'B' as number suffixes.
Options which do not take arguments are boolean options, and set the
corresponding value to true. They can be set to false by prefixing the
option name with "no". For example using "-nofoo" will set the boolean
option with name "foo" to false.
Stream specifiers
Some options are applied per-stream, e.g. bitrate or codec. Stream
specifiers are used to precisely specify which stream(s) a given option
belongs to.
A stream specifier is a string generally appended to the option name
and separated from it by a colon. E.g. "-codec:a:1 ac3" contains the
"a:1" stream specifier, which matches the second audio stream.
Therefore, it would select the ac3 codec for the second audio stream.
A stream specifier can match several streams, so that the option is
applied to all of them. E.g. the stream specifier in "-b:a 128k"
matches all audio streams.
An empty stream specifier matches all streams. For example, "-codec
copy" or "-codec: copy" would copy all the streams without reencoding.
Possible forms of stream specifiers are:
stream_index
Matches the stream with this index. E.g. "-threads:1 4" would set
the thread count for the second stream to 4.
stream_type[:stream_index]
stream_type is one of following: 'v' for video, 'a' for audio, 's'
for subtitle, 'd' for data, and 't' for attachments. If
stream_index is given, then it matches stream number stream_index
of this type. Otherwise, it matches all streams of this type.
p:program_id[:stream_index]
If stream_index is given, then it matches the stream with number
stream_index in the program with the id program_id. Otherwise, it
matches all streams in the program.
#stream_id
Matches the stream by a format-specific ID.
Generic options
These options are shared amongst the ff* tools.
-L Show license.
-h, -?, -help, --help [arg]
Show help. An optional parameter may be specified to print help
about a specific item.
Possible values of arg are:
decoder=decoder_name
Print detailed information about the decoder named
decoder_name. Use the -decoders option to get a list of all
decoders.
encoder=encoder_name
Print detailed information about the encoder named
encoder_name. Use the -encoders option to get a list of all
encoders.
demuxer=demuxer_name
Print detailed information about the demuxer named
demuxer_name. Use the -formats option to get a list of all
demuxers and muxers.
muxer=muxer_name
Print detailed information about the muxer named muxer_name.
Use the -formats option to get a list of all muxers and
demuxers.
filter=filter_name
Print detailed information about the filter name filter_name.
Use the -filters option to get a list of all filters.
-version
Show version.
-formats
Show available formats.
-codecs
Show all codecs known to libavcodec.
Note that the term 'codec' is used throughout this documentation as
a shortcut for what is more correctly called a media bitstream
format.
-decoders
Show available decoders.
-encoders
Show all available encoders.
-bsfs
Show available bitstream filters.
-protocols
Show available protocols.
-filters
Show available libavfilter filters.
-pix_fmts
Show available pixel formats.
-sample_fmts
Show available sample formats.
-layouts
Show channel names and standard channel layouts.
-loglevel [repeat+]loglevel | -v [repeat+]loglevel
Set the logging level used by the library. Adding "repeat+"
indicates that repeated log output should not be compressed to the
first line and the "Last message repeated n times" line will be
omitted. "repeat" can also be used alone. If "repeat" is used
alone, and with no prior loglevel set, the default loglevel will be
used. If multiple loglevel parameters are given, using 'repeat'
will not change the loglevel. loglevel is a number or a string
containing one of the following values:
quiet
Show nothing at all; be silent.
panic
Only show fatal errors which could lead the process to crash,
such as and assert failure. This is not currently used for
anything.
fatal
Only show fatal errors. These are errors after which the
process absolutely cannot continue after.
error
Show all errors, including ones which can be recovered from.
warning
Show all warnings and errors. Any message related to possibly
incorrect or unexpected events will be shown.
info
Show informative messages during processing. This is in
addition to warnings and errors. This is the default value.
verbose
Same as "info", except more verbose.
debug
Show everything, including debugging information.
By default the program logs to stderr, if coloring is supported by
the terminal, colors are used to mark errors and warnings. Log
coloring can be disabled setting the environment variable
AV_LOG_FORCE_NOCOLOR or NO_COLOR, or can be forced setting the
environment variable AV_LOG_FORCE_COLOR. The use of the
environment variable NO_COLOR is deprecated and will be dropped in
a following FFmpeg version.
-report
Dump full command line and console output to a file named
"program-YYYYMMDD-HHMMSS.log" in the current directory. This file
can be useful for bug reports. It also implies "-loglevel
verbose".
Setting the environment variable "FFREPORT" to any value has the
same effect. If the value is a ':'-separated key=value sequence,
these options will affect the report; options values must be
escaped if they contain special characters or the options delimiter
':' (see the ``Quoting and escaping'' section in the ffmpeg-utils
manual). The following option is recognized:
file
set the file name to use for the report; %p is expanded to the
name of the program, %t is expanded to a timestamp, "%%" is
expanded to a plain "%"
Errors in parsing the environment variable are not fatal, and will
not appear in the report.
-cpuflags flags (global)
Allows setting and clearing cpu flags. This option is intended for
testing. Do not use it unless you know what you're doing.
ffmpeg -cpuflags -sse+mmx ...
ffmpeg -cpuflags mmx ...
ffmpeg -cpuflags 0 ...
Possible flags for this option are:
x86
mmx
mmxext
sse
sse2
sse2slow
sse3
sse3slow
ssse3
atom
sse4.1
sse4.2
avx
xop
fma4
3dnow
3dnowext
cmov
ARM
armv5te
armv6
armv6t2
vfp
vfpv3
neon
PowerPC
altivec
Specific Processors
pentium2
pentium3
pentium4
k6
k62
athlon
athlonxp
k8
-opencl_options options (global)
Set OpenCL environment options. This option is only available when
FFmpeg has been compiled with "--enable-opencl".
options must be a list of key=value option pairs separated by ':'.
See the ``OpenCL Options'' section in the ffmpeg-utils manual for
the list of supported options.
AVOptions
These options are provided directly by the libavformat, libavdevice and
libavcodec libraries. To see the list of available AVOptions, use the
-help option. They are separated into two categories:
generic
These options can be set for any container, codec or device.
Generic options are listed under AVFormatContext options for
containers/devices and under AVCodecContext options for codecs.
private
These options are specific to the given container, device or codec.
Private options are listed under their corresponding
containers/devices/codecs.
For example to write an ID3v2.3 header instead of a default ID3v2.4 to
an MP3 file, use the id3v2_version private option of the MP3 muxer:
ffmpeg -i input.flac -id3v2_version 3 out.mp3
All codec AVOptions are obviously per-stream, so the chapter on stream
specifiers applies to them
Note -nooption syntax cannot be used for boolean AVOptions, use -option
0/-option 1.
Note2 old undocumented way of specifying per-stream AVOptions by
prepending v/a/s to the options name is now obsolete and will be
removed soon.
Main options
-x width
Force displayed width.
-y height
Force displayed height.
-s size
Set frame size (WxH or abbreviation), needed for videos which do
not contain a header with the frame size like raw YUV. This option
has been deprecated in favor of private options, try -video_size.
-an Disable audio.
-vn Disable video.
-ss pos
Seek to a given position in seconds.
-t duration
play <duration> seconds of audio/video
-bytes
Seek by bytes.
-nodisp
Disable graphical display.
-f fmt
Force format.
-window_title title
Set window title (default is the input filename).
-loop number
Loops movie playback <number> times. 0 means forever.
-showmode mode
Set the show mode to use. Available values for mode are:
0, video
show video
1, waves
show audio waves
2, rdft
show audio frequency band using RDFT ((Inverse) Real Discrete
Fourier Transform)
Default value is "video", if video is not present or cannot be
played "rdft" is automatically selected.
You can interactively cycle through the available show modes by
pressing the key w.
-vf filtergraph
Create the filtergraph specified by filtergraph and use it to
filter the video stream.
filtergraph is a description of the filtergraph to apply to the
stream, and must have a single video input and a single video
output. In the filtergraph, the input is associated to the label
"in", and the output to the label "out". See the ffmpeg-filters
manual for more information about the filtergraph syntax.
-af filtergraph
filtergraph is a description of the filtergraph to apply to the
input audio. Use the option "-filters" to show all the available
filters (including sources and sinks).
-i input_file
Read input_file.
Advanced options
-pix_fmt format
Set pixel format. This option has been deprecated in favor of
private options, try -pixel_format.
-stats
Print several playback statistics, in particular show the stream
duration, the codec parameters, the current position in the stream
and the audio/video synchronisation drift. It is on by default, to
explicitly disable it you need to specify "-nostats".
-bug
Work around bugs.
-fast
Non-spec-compliant optimizations.
-genpts
Generate pts.
-rtp_tcp
Force RTP/TCP protocol usage instead of RTP/UDP. It is only
meaningful if you are streaming with the RTSP protocol.
-sync type
Set the master clock to audio ("type=audio"), video ("type=video")
or external ("type=ext"). Default is audio. The master clock is
used to control audio-video synchronization. Most media players use
audio as master clock, but in some cases (streaming or high quality
broadcast) it is necessary to change that. This option is mainly
used for debugging purposes.
-threads count
Set the thread count.
-ast audio_stream_number
Select the desired audio stream number, counting from 0. The number
refers to the list of all the input audio streams. If it is greater
than the number of audio streams minus one, then the last one is
selected, if it is negative the audio playback is disabled.
-vst video_stream_number
Select the desired video stream number, counting from 0. The number
refers to the list of all the input video streams. If it is greater
than the number of video streams minus one, then the last one is
selected, if it is negative the video playback is disabled.
-sst subtitle_stream_number
Select the desired subtitle stream number, counting from 0. The
number refers to the list of all the input subtitle streams. If it
is greater than the number of subtitle streams minus one, then the
last one is selected, if it is negative the subtitle rendering is
disabled.
-autoexit
Exit when video is done playing.
-exitonkeydown
Exit if any key is pressed.
-exitonmousedown
Exit if any mouse button is pressed.
-codec:media_specifier codec_name
Force a specific decoder implementation for the stream identified
by media_specifier, which can assume the values "a" (audio), "v"
(video), and "s" subtitle.
-acodec codec_name
Force a specific audio decoder.
-vcodec codec_name
Force a specific video decoder.
-scodec codec_name
Force a specific subtitle decoder.
While playing
q, ESC
Quit.
f Toggle full screen.
p, SPC
Pause.
a Cycle audio channel.
v Cycle video channel.
t Cycle subtitle channel.
w Show audio waves.
left/right
Seek backward/forward 10 seconds.
down/up
Seek backward/forward 1 minute.
page down/page up
Seek backward/forward 10 minutes.
mouse click
Seek to percentage in file corresponding to fraction of width.
SEE ALSOffplay-all(1), ffmpeg(1), ffprobe(1), ffserver(1), ffmpeg-utils(1),
ffmpeg-scaler(1), ffmpeg-resampler(1), ffmpeg-codecs(1),
ffmpeg-bitstream-filters(1), ffmpeg-formats(1), ffmpeg-devices(1),
ffmpeg-protocols(1), ffmpeg-filters(1)AUTHORS
The FFmpeg developers.
For details about the authorship, see the Git history of the project
(git://source.ffmpeg.org/ffmpeg), e.g. by typing the command git log in
the FFmpeg source directory, or browsing the online repository at
<http://source.ffmpeg.org>.
Maintainers for the specific components are listed in the file
MAINTAINERS in the source code tree.
2013-10-21 FFPLAY(1)
