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<h1 class="titlefont">ffplay Documentation</h1>
<hr>
<a name="SEC_Top"></a>
<a name="SEC_Contents"></a>
<h1>Table of Contents</h1>
<div class="contents">
<ul class="no-bullet">
<li><a name="toc-Synopsis" href="#Synopsis">1 Synopsis</a></li>
<li><a name="toc-Description" href="#Description">2 Description</a></li>
<li><a name="toc-Options" href="#Options">3 Options</a>
<ul class="no-bullet">
<li><a name="toc-Stream-specifiers-1" href="#Stream-specifiers-1">3.1 Stream specifiers</a></li>
<li><a name="toc-Generic-options" href="#Generic-options">3.2 Generic options</a></li>
<li><a name="toc-AVOptions" href="#AVOptions">3.3 AVOptions</a></li>
<li><a name="toc-Main-options" href="#Main-options">3.4 Main options</a></li>
<li><a name="toc-Advanced-options" href="#Advanced-options">3.5 Advanced options</a></li>
<li><a name="toc-While-playing" href="#While-playing">3.6 While playing</a></li>
</ul></li>
<li><a name="toc-See-Also" href="#See-Also">4 See Also</a></li>
<li><a name="toc-Authors" href="#Authors">5 Authors</a></li>
</ul>
</div>
<hr size="6">
<a name="Synopsis"></a>
<h1 class="chapter"><a href="ffplay.html#toc-Synopsis">1 Synopsis</a></h1>
<p>ffplay [<var>options</var>] [‘<tt>input_file</tt>’]
</p>
<a name="Description"></a>
<h1 class="chapter"><a href="ffplay.html#toc-Description">2 Description</a></h1>
<p>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.
</p>
<a name="Options"></a>
<h1 class="chapter"><a href="ffplay.html#toc-Options">3 Options</a></h1>
<p>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’.
</p>
<p>If ’i’ is appended to the SI unit prefix, the complete prefix will be
interpreted as a unit prefix for binary multiples, 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.
</p>
<p>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.
</p>
<p><a name="Stream-specifiers"></a>
</p><a name="Stream-specifiers-1"></a>
<h2 class="section"><a href="ffplay.html#toc-Stream-specifiers-1">3.1 Stream specifiers</a></h2>
<p>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.
</p>
<p>A stream specifier is a string generally appended to the option name and
separated from it by a colon. E.g. <code>-codec:a:1 ac3</code> contains the
<code>a:1</code> stream specifier, which matches the second audio stream. Therefore, it
would select the ac3 codec for the second audio stream.
</p>
<p>A stream specifier can match several streams, so that the option is applied to all
of them. E.g. the stream specifier in <code>-b:a 128k</code> matches all audio
streams.
</p>
<p>An empty stream specifier matches all streams. For example, <code>-codec copy</code>
or <code>-codec: copy</code> would copy all the streams without reencoding.
</p>
<p>Possible forms of stream specifiers are:
</p><dl compact="compact">
<dt>‘<samp><var>stream_index</var></samp>’</dt>
<dd><p>Matches the stream with this index. E.g. <code>-threads:1 4</code> would set the
thread count for the second stream to 4.
</p></dd>
<dt>‘<samp><var>stream_type</var>[:<var>stream_index</var>]</samp>’</dt>
<dd><p><var>stream_type</var> is one of following: ’v’ for video, ’a’ for audio, ’s’ for subtitle,
’d’ for data, and ’t’ for attachments. If <var>stream_index</var> is given, then it matches
stream number <var>stream_index</var> of this type. Otherwise, it matches all
streams of this type.
</p></dd>
<dt>‘<samp>p:<var>program_id</var>[:<var>stream_index</var>]</samp>’</dt>
<dd><p>If <var>stream_index</var> is given, then it matches the stream with number <var>stream_index</var>
in the program with the id <var>program_id</var>. Otherwise, it matches all streams in the
program.
</p></dd>
<dt>‘<samp>#<var>stream_id</var> or i:<var>stream_id</var></samp>’</dt>
<dd><p>Match the stream by stream id (e.g. PID in MPEG-TS container).
</p></dd>
<dt>‘<samp>m:<var>key</var>[:<var>value</var>]</samp>’</dt>
<dd><p>Matches streams with the metadata tag <var>key</var> having the specified value. If
<var>value</var> is not given, matches streams that contain the given tag with any
value.
</p>
<p>Note that in <code>ffmpeg</code>, matching by metadata will only work properly for
input files.
</p></dd>
</dl>
<a name="Generic-options"></a>
<h2 class="section"><a href="ffplay.html#toc-Generic-options">3.2 Generic options</a></h2>
<p>These options are shared amongst the ff* tools.
</p>
<dl compact="compact">
<dt>‘<samp>-L</samp>’</dt>
<dd><p>Show license.
</p>
</dd>
<dt>‘<samp>-h, -?, -help, --help [<var>arg</var>]</samp>’</dt>
<dd><p>Show help. An optional parameter may be specified to print help about a specific
item. If no argument is specified, only basic (non advanced) tool
options are shown.
</p>
<p>Possible values of <var>arg</var> are:
</p><dl compact="compact">
<dt>‘<samp>long</samp>’</dt>
<dd><p>Print advanced tool options in addition to the basic tool options.
</p>
</dd>
<dt>‘<samp>full</samp>’</dt>
<dd><p>Print complete list of options, including shared and private options
for encoders, decoders, demuxers, muxers, filters, etc.
</p>
</dd>
<dt>‘<samp>decoder=<var>decoder_name</var></samp>’</dt>
<dd><p>Print detailed information about the decoder named <var>decoder_name</var>. Use the
‘<samp>-decoders</samp>’ option to get a list of all decoders.
</p>
</dd>
<dt>‘<samp>encoder=<var>encoder_name</var></samp>’</dt>
<dd><p>Print detailed information about the encoder named <var>encoder_name</var>. Use the
‘<samp>-encoders</samp>’ option to get a list of all encoders.
</p>
</dd>
<dt>‘<samp>demuxer=<var>demuxer_name</var></samp>’</dt>
<dd><p>Print detailed information about the demuxer named <var>demuxer_name</var>. Use the
‘<samp>-formats</samp>’ option to get a list of all demuxers and muxers.
</p>
</dd>
<dt>‘<samp>muxer=<var>muxer_name</var></samp>’</dt>
<dd><p>Print detailed information about the muxer named <var>muxer_name</var>. Use the
‘<samp>-formats</samp>’ option to get a list of all muxers and demuxers.
</p>
</dd>
<dt>‘<samp>filter=<var>filter_name</var></samp>’</dt>
<dd><p>Print detailed information about the filter name <var>filter_name</var>. Use the
‘<samp>-filters</samp>’ option to get a list of all filters.
</p></dd>
</dl>
</dd>
<dt>‘<samp>-version</samp>’</dt>
<dd><p>Show version.
</p>
</dd>
<dt>‘<samp>-formats</samp>’</dt>
<dd><p>Show available formats.
</p>
</dd>
<dt>‘<samp>-codecs</samp>’</dt>
<dd><p>Show all codecs known to libavcodec.
</p>
<p>Note that the term ’codec’ is used throughout this documentation as a shortcut
for what is more correctly called a media bitstream format.
</p>
</dd>
<dt>‘<samp>-decoders</samp>’</dt>
<dd><p>Show available decoders.
</p>
</dd>
<dt>‘<samp>-encoders</samp>’</dt>
<dd><p>Show all available encoders.
</p>
</dd>
<dt>‘<samp>-bsfs</samp>’</dt>
<dd><p>Show available bitstream filters.
</p>
</dd>
<dt>‘<samp>-protocols</samp>’</dt>
<dd><p>Show available protocols.
</p>
</dd>
<dt>‘<samp>-filters</samp>’</dt>
<dd><p>Show available libavfilter filters.
</p>
</dd>
<dt>‘<samp>-pix_fmts</samp>’</dt>
<dd><p>Show available pixel formats.
</p>
</dd>
<dt>‘<samp>-sample_fmts</samp>’</dt>
<dd><p>Show available sample formats.
</p>
</dd>
<dt>‘<samp>-layouts</samp>’</dt>
<dd><p>Show channel names and standard channel layouts.
</p>
</dd>
<dt>‘<samp>-colors</samp>’</dt>
<dd><p>Show recognized color names.
</p>
</dd>
<dt>‘<samp>-loglevel [repeat+]<var>loglevel</var> | -v [repeat+]<var>loglevel</var></samp>’</dt>
<dd><p>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.
<var>loglevel</var> is a number or a string containing one of the following values:
</p><dl compact="compact">
<dt>‘<samp>quiet</samp>’</dt>
<dd><p>Show nothing at all; be silent.
</p></dd>
<dt>‘<samp>panic</samp>’</dt>
<dd><p>Only show fatal errors which could lead the process to crash, such as
and assert failure. This is not currently used for anything.
</p></dd>
<dt>‘<samp>fatal</samp>’</dt>
<dd><p>Only show fatal errors. These are errors after which the process absolutely
cannot continue after.
</p></dd>
<dt>‘<samp>error</samp>’</dt>
<dd><p>Show all errors, including ones which can be recovered from.
</p></dd>
<dt>‘<samp>warning</samp>’</dt>
<dd><p>Show all warnings and errors. Any message related to possibly
incorrect or unexpected events will be shown.
</p></dd>
<dt>‘<samp>info</samp>’</dt>
<dd><p>Show informative messages during processing. This is in addition to
warnings and errors. This is the default value.
</p></dd>
<dt>‘<samp>verbose</samp>’</dt>
<dd><p>Same as <code>info</code>, except more verbose.
</p></dd>
<dt>‘<samp>debug</samp>’</dt>
<dd><p>Show everything, including debugging information.
</p></dd>
</dl>
<p>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
<code>AV_LOG_FORCE_NOCOLOR</code> or <code>NO_COLOR</code>, or can be forced setting
the environment variable <code>AV_LOG_FORCE_COLOR</code>.
The use of the environment variable <code>NO_COLOR</code> is deprecated and
will be dropped in a following FFmpeg version.
</p>
</dd>
<dt>‘<samp>-report</samp>’</dt>
<dd><p>Dump full command line and console output to a file named
<code><var>program</var>-<var>YYYYMMDD</var>-<var>HHMMSS</var>.log</code> in the current
directory.
This file can be useful for bug reports.
It also implies <code>-loglevel verbose</code>.
</p>
<p>Setting the environment variable <code>FFREPORT</code> 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:
</p><dl compact="compact">
<dt>‘<samp>file</samp>’</dt>
<dd><p>set the file name to use for the report; <code>%p</code> is expanded to the name
of the program, <code>%t</code> is expanded to a timestamp, <code>%%</code> is expanded
to a plain <code>%</code>
</p></dd>
<dt>‘<samp>level</samp>’</dt>
<dd><p>set the log level
</p></dd>
</dl>
<p>Errors in parsing the environment variable are not fatal, and will not
appear in the report.
</p>
</dd>
<dt>‘<samp>-hide_banner</samp>’</dt>
<dd><p>Suppress printing banner.
</p>
<p>All FFmpeg tools will normally show a copyright notice, build options
and library versions. This option can be used to suppress printing
this information.
</p>
</dd>
<dt>‘<samp>-cpuflags flags (<em>global</em>)</samp>’</dt>
<dd><p>Allows setting and clearing cpu flags. This option is intended
for testing. Do not use it unless you know what you’re doing.
</p><div class="example">
<pre class="example">ffmpeg -cpuflags -sse+mmx ...
ffmpeg -cpuflags mmx ...
ffmpeg -cpuflags 0 ...
</pre></div>
<p>Possible flags for this option are:
</p><dl compact="compact">
<dt>‘<samp>x86</samp>’</dt>
<dd><dl compact="compact">
<dt>‘<samp>mmx</samp>’</dt>
<dt>‘<samp>mmxext</samp>’</dt>
<dt>‘<samp>sse</samp>’</dt>
<dt>‘<samp>sse2</samp>’</dt>
<dt>‘<samp>sse2slow</samp>’</dt>
<dt>‘<samp>sse3</samp>’</dt>
<dt>‘<samp>sse3slow</samp>’</dt>
<dt>‘<samp>ssse3</samp>’</dt>
<dt>‘<samp>atom</samp>’</dt>
<dt>‘<samp>sse4.1</samp>’</dt>
<dt>‘<samp>sse4.2</samp>’</dt>
<dt>‘<samp>avx</samp>’</dt>
<dt>‘<samp>avx2</samp>’</dt>
<dt>‘<samp>xop</samp>’</dt>
<dt>‘<samp>fma3</samp>’</dt>
<dt>‘<samp>fma4</samp>’</dt>
<dt>‘<samp>3dnow</samp>’</dt>
<dt>‘<samp>3dnowext</samp>’</dt>
<dt>‘<samp>bmi1</samp>’</dt>
<dt>‘<samp>bmi2</samp>’</dt>
<dt>‘<samp>cmov</samp>’</dt>
</dl>
</dd>
<dt>‘<samp>ARM</samp>’</dt>
<dd><dl compact="compact">
<dt>‘<samp>armv5te</samp>’</dt>
<dt>‘<samp>armv6</samp>’</dt>
<dt>‘<samp>armv6t2</samp>’</dt>
<dt>‘<samp>vfp</samp>’</dt>
<dt>‘<samp>vfpv3</samp>’</dt>
<dt>‘<samp>neon</samp>’</dt>
<dt>‘<samp>setend</samp>’</dt>
</dl>
</dd>
<dt>‘<samp>AArch64</samp>’</dt>
<dd><dl compact="compact">
<dt>‘<samp>armv8</samp>’</dt>
<dt>‘<samp>vfp</samp>’</dt>
<dt>‘<samp>neon</samp>’</dt>
</dl>
</dd>
<dt>‘<samp>PowerPC</samp>’</dt>
<dd><dl compact="compact">
<dt>‘<samp>altivec</samp>’</dt>
</dl>
</dd>
<dt>‘<samp>Specific Processors</samp>’</dt>
<dd><dl compact="compact">
<dt>‘<samp>pentium2</samp>’</dt>
<dt>‘<samp>pentium3</samp>’</dt>
<dt>‘<samp>pentium4</samp>’</dt>
<dt>‘<samp>k6</samp>’</dt>
<dt>‘<samp>k62</samp>’</dt>
<dt>‘<samp>athlon</samp>’</dt>
<dt>‘<samp>athlonxp</samp>’</dt>
<dt>‘<samp>k8</samp>’</dt>
</dl>
</dd>
</dl>
</dd>
<dt>‘<samp>-opencl_bench</samp>’</dt>
<dd><p>Benchmark all available OpenCL devices and show the results. This option
is only available when FFmpeg has been compiled with <code>--enable-opencl</code>.
</p>
</dd>
<dt>‘<samp>-opencl_options options (<em>global</em>)</samp>’</dt>
<dd><p>Set OpenCL environment options. This option is only available when
FFmpeg has been compiled with <code>--enable-opencl</code>.
</p>
<p><var>options</var> must be a list of <var>key</var>=<var>value</var> option pairs
separated by ’:’. See the “OpenCL Options” section in the
ffmpeg-utils manual for the list of supported options.
</p></dd>
</dl>
<a name="AVOptions"></a>
<h2 class="section"><a href="ffplay.html#toc-AVOptions">3.3 AVOptions</a></h2>
<p>These options are provided directly by the libavformat, libavdevice and
libavcodec libraries. To see the list of available AVOptions, use the
‘<samp>-help</samp>’ option. They are separated into two categories:
</p><dl compact="compact">
<dt>‘<samp>generic</samp>’</dt>
<dd><p>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.
</p></dd>
<dt>‘<samp>private</samp>’</dt>
<dd><p>These options are specific to the given container, device or codec. Private
options are listed under their corresponding containers/devices/codecs.
</p></dd>
</dl>
<p>For example to write an ID3v2.3 header instead of a default ID3v2.4 to
an MP3 file, use the ‘<samp>id3v2_version</samp>’ private option of the MP3
muxer:
</p><div class="example">
<pre class="example">ffmpeg -i input.flac -id3v2_version 3 out.mp3
</pre></div>
<p>All codec AVOptions are per-stream, and thus a stream specifier
should be attached to them.
</p>
<p>Note: the ‘<samp>-nooption</samp>’ syntax cannot be used for boolean
AVOptions, use ‘<samp>-option 0</samp>’/‘<samp>-option 1</samp>’.
</p>
<p>Note: the 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.
</p>
<a name="Main-options"></a>
<h2 class="section"><a href="ffplay.html#toc-Main-options">3.4 Main options</a></h2>
<dl compact="compact">
<dt>‘<samp>-x <var>width</var></samp>’</dt>
<dd><p>Force displayed width.
</p></dd>
<dt>‘<samp>-y <var>height</var></samp>’</dt>
<dd><p>Force displayed height.
</p></dd>
<dt>‘<samp>-s <var>size</var></samp>’</dt>
<dd><p>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.
</p></dd>
<dt>‘<samp>-an</samp>’</dt>
<dd><p>Disable audio.
</p></dd>
<dt>‘<samp>-vn</samp>’</dt>
<dd><p>Disable video.
</p></dd>
<dt>‘<samp>-ss <var>pos</var></samp>’</dt>
<dd><p>Seek to a given position in seconds.
</p></dd>
<dt>‘<samp>-t <var>duration</var></samp>’</dt>
<dd><p>play <duration> seconds of audio/video
</p></dd>
<dt>‘<samp>-bytes</samp>’</dt>
<dd><p>Seek by bytes.
</p></dd>
<dt>‘<samp>-nodisp</samp>’</dt>
<dd><p>Disable graphical display.
</p></dd>
<dt>‘<samp>-f <var>fmt</var></samp>’</dt>
<dd><p>Force format.
</p></dd>
<dt>‘<samp>-window_title <var>title</var></samp>’</dt>
<dd><p>Set window title (default is the input filename).
</p></dd>
<dt>‘<samp>-loop <var>number</var></samp>’</dt>
<dd><p>Loops movie playback <number> times. 0 means forever.
</p></dd>
<dt>‘<samp>-showmode <var>mode</var></samp>’</dt>
<dd><p>Set the show mode to use.
Available values for <var>mode</var> are:
</p><dl compact="compact">
<dt>‘<samp>0, video</samp>’</dt>
<dd><p>show video
</p></dd>
<dt>‘<samp>1, waves</samp>’</dt>
<dd><p>show audio waves
</p></dd>
<dt>‘<samp>2, rdft</samp>’</dt>
<dd><p>show audio frequency band using RDFT ((Inverse) Real Discrete Fourier Transform)
</p></dd>
</dl>
<p>Default value is "video", if video is not present or cannot be played
"rdft" is automatically selected.
</p>
<p>You can interactively cycle through the available show modes by
pressing the key <w>.
</p>
</dd>
<dt>‘<samp>-vf <var>filtergraph</var></samp>’</dt>
<dd><p>Create the filtergraph specified by <var>filtergraph</var> and use it to
filter the video stream.
</p>
<p><var>filtergraph</var> 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
<code>in</code>, and the output to the label <code>out</code>. See the
ffmpeg-filters manual for more information about the filtergraph
syntax.
</p>
<p>You can specify this parameter multiple times and cycle through the specified
filtergraphs along with the show modes by pressing the key <w>.
</p>
</dd>
<dt>‘<samp>-af <var>filtergraph</var></samp>’</dt>
<dd><p><var>filtergraph</var> 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).
</p>
</dd>
<dt>‘<samp>-i <var>input_file</var></samp>’</dt>
<dd><p>Read <var>input_file</var>.
</p></dd>
</dl>
<a name="Advanced-options"></a>
<h2 class="section"><a href="ffplay.html#toc-Advanced-options">3.5 Advanced options</a></h2>
<dl compact="compact">
<dt>‘<samp>-pix_fmt <var>format</var></samp>’</dt>
<dd><p>Set pixel format.
This option has been deprecated in favor of private options, try -pixel_format.
</p>
</dd>
<dt>‘<samp>-stats</samp>’</dt>
<dd><p>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 <code>-nostats</code>.
</p>
</dd>
<dt>‘<samp>-bug</samp>’</dt>
<dd><p>Work around bugs.
</p></dd>
<dt>‘<samp>-fast</samp>’</dt>
<dd><p>Non-spec-compliant optimizations.
</p></dd>
<dt>‘<samp>-genpts</samp>’</dt>
<dd><p>Generate pts.
</p></dd>
<dt>‘<samp>-rtp_tcp</samp>’</dt>
<dd><p>Force RTP/TCP protocol usage instead of RTP/UDP. It is only meaningful
if you are streaming with the RTSP protocol.
</p></dd>
<dt>‘<samp>-sync <var>type</var></samp>’</dt>
<dd><p>Set the master clock to audio (<code>type=audio</code>), video
(<code>type=video</code>) or external (<code>type=ext</code>). 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.
</p></dd>
<dt>‘<samp>-threads <var>count</var></samp>’</dt>
<dd><p>Set the thread count.
</p></dd>
<dt>‘<samp>-ast <var>audio_stream_number</var></samp>’</dt>
<dd><p>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.
</p></dd>
<dt>‘<samp>-vst <var>video_stream_number</var></samp>’</dt>
<dd><p>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.
</p></dd>
<dt>‘<samp>-sst <var>subtitle_stream_number</var></samp>’</dt>
<dd><p>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.
</p></dd>
<dt>‘<samp>-autoexit</samp>’</dt>
<dd><p>Exit when video is done playing.
</p></dd>
<dt>‘<samp>-exitonkeydown</samp>’</dt>
<dd><p>Exit if any key is pressed.
</p></dd>
<dt>‘<samp>-exitonmousedown</samp>’</dt>
<dd><p>Exit if any mouse button is pressed.
</p>
</dd>
<dt>‘<samp>-codec:<var>media_specifier</var> <var>codec_name</var></samp>’</dt>
<dd><p>Force a specific decoder implementation for the stream identified by
<var>media_specifier</var>, which can assume the values <code>a</code> (audio),
<code>v</code> (video), and <code>s</code> subtitle.
</p>
</dd>
<dt>‘<samp>-acodec <var>codec_name</var></samp>’</dt>
<dd><p>Force a specific audio decoder.
</p>
</dd>
<dt>‘<samp>-vcodec <var>codec_name</var></samp>’</dt>
<dd><p>Force a specific video decoder.
</p>
</dd>
<dt>‘<samp>-scodec <var>codec_name</var></samp>’</dt>
<dd><p>Force a specific subtitle decoder.
</p>
</dd>
<dt>‘<samp>-autorotate</samp>’</dt>
<dd><p>Automatically rotate the video according to presentation metadata. Set by
default, use -noautorotate to disable.
</p></dd>
</dl>
<a name="While-playing"></a>
<h2 class="section"><a href="ffplay.html#toc-While-playing">3.6 While playing</a></h2>
<dl compact="compact">
<dt><q, ESC></dt>
<dd><p>Quit.
</p>
</dd>
<dt><f></dt>
<dd><p>Toggle full screen.
</p>
</dd>
<dt><p, SPC></dt>
<dd><p>Pause.
</p>
</dd>
<dt><a></dt>
<dd><p>Cycle audio channel in the current program.
</p>
</dd>
<dt><v></dt>
<dd><p>Cycle video channel.
</p>
</dd>
<dt><t></dt>
<dd><p>Cycle subtitle channel in the current program.
</p>
</dd>
<dt><c></dt>
<dd><p>Cycle program.
</p>
</dd>
<dt><w></dt>
<dd><p>Cycle video filters or show modes.
</p>
</dd>
<dt><s></dt>
<dd><p>Step to the next frame.
</p>
<p>Pause if the stream is not already paused, step to the next video
frame, and pause.
</p>
</dd>
<dt><left/right></dt>
<dd><p>Seek backward/forward 10 seconds.
</p>
</dd>
<dt><down/up></dt>
<dd><p>Seek backward/forward 1 minute.
</p>
</dd>
<dt><page down/page up></dt>
<dd><p>Seek to the previous/next chapter.
or if there are no chapters
Seek backward/forward 10 minutes.
</p>
</dd>
<dt><mouse click></dt>
<dd><p>Seek to percentage in file corresponding to fraction of width.
</p>
</dd>
</dl>
<a name="See-Also"></a>
<h1 class="chapter"><a href="ffplay.html#toc-See-Also">4 See Also</a></h1>
<p><a href="ffplay-all.html">ffmpeg-all</a>,
<a href="ffmpeg.html">ffmpeg</a>, <a href="ffprobe.html">ffprobe</a>, <a href="ffserver.html">ffserver</a>,
<a href="ffmpeg-utils.html">ffmpeg-utils</a>,
<a href="ffmpeg-scaler.html">ffmpeg-scaler</a>,
<a href="ffmpeg-resampler.html">ffmpeg-resampler</a>,
<a href="ffmpeg-codecs.html">ffmpeg-codecs</a>,
<a href="ffmpeg-bitstream-filters.html">ffmpeg-bitstream-filters</a>,
<a href="ffmpeg-formats.html">ffmpeg-formats</a>,
<a href="ffmpeg-devices.html">ffmpeg-devices</a>,
<a href="ffmpeg-protocols.html">ffmpeg-protocols</a>,
<a href="ffmpeg-filters.html">ffmpeg-filters</a>
</p>
<a name="Authors"></a>
<h1 class="chapter"><a href="ffplay.html#toc-Authors">5 Authors</a></h1>
<p>The FFmpeg developers.
</p>
<p>For details about the authorship, see the Git history of the project
(git://source.ffmpeg.org/ffmpeg), e.g. by typing the command
<code>git log</code> in the FFmpeg source directory, or browsing the
online repository at <a href="http://source.ffmpeg.org">http://source.ffmpeg.org</a>.
</p>
<p>Maintainers for the specific components are listed in the file
‘<tt>MAINTAINERS</tt>’ in the source code tree.
</p>
</div>
</body>
</html>
distrib
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Mageia
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media
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tainted-updates
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3771641dad11f596ac4f19f83d7040d9
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files
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