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| author | Xavier Del Campo Romero <xavi.dcr@tutanota.com> | 2021-01-03 02:06:58 +0100 |
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| committer | Xavier Del Campo Romero <xavi.dcr@tutanota.com> | 2021-01-03 02:52:19 +0100 |
| commit | 734eee1af2c21976e8f57c4ca498593a305fb22e (patch) | |
| tree | 8d5593567ce80c37820ea0c5ae76ff6bdb9e529c /Music/ffmpeg/doc/ffplay.html | |
| parent | be200a681bed14801bb564c79f70e773e44e6c73 (diff) | |
| download | airport-734eee1af2c21976e8f57c4ca498593a305fb22e.tar.gz | |
Remove ffmpeg binary from project
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| -rw-r--r-- | Music/ffmpeg/doc/ffplay.html | 822 |
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diff --git a/Music/ffmpeg/doc/ffplay.html b/Music/ffmpeg/doc/ffplay.html deleted file mode 100644 index ee53095..0000000 --- a/Music/ffmpeg/doc/ffplay.html +++ /dev/null @@ -1,822 +0,0 @@ -<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> -<html> -<!-- Created by GNU Texinfo 5.2, http://www.gnu.org/software/texinfo/ --> - <head> - <meta charset="utf-8"> - <title> - ffplay Documentation - </title> - <meta name="viewport" content="width=device-width,initial-scale=1.0"> - <link rel="stylesheet" type="text/css" href="bootstrap.min.css"> - <link rel="stylesheet" type="text/css" href="style.min.css"> - </head> - <body> - <div class="container"> - <h1> - ffplay Documentation - </h1> -<div align="center"> -</div> - - -<a name="SEC_Top"></a> - -<a name="SEC_Contents"></a> -<h2 class="contents-heading">Table of Contents</h2> - -<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> - - -<a name="Synopsis"></a> -<h2 class="chapter">1 Synopsis<span class="pull-right"><a class="anchor hidden-xs" href="#Synopsis" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-Synopsis" aria-hidden="true">TOC</a></span></h2> - -<p>ffplay [<var>options</var>] [<samp>input_file</samp>] -</p> -<a name="Description"></a> -<h2 class="chapter">2 Description<span class="pull-right"><a class="anchor hidden-xs" href="#Description" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-Description" aria-hidden="true">TOC</a></span></h2> - -<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> -<h2 class="chapter">3 Options<span class="pull-right"><a class="anchor hidden-xs" href="#Options" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-Options" aria-hidden="true">TOC</a></span></h2> - -<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> -<a name="Stream-specifiers"></a><a name="Stream-specifiers-1"></a> -<h3 class="section">3.1 Stream specifiers<span class="pull-right"><a class="anchor hidden-xs" href="#Stream-specifiers-1" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-Stream-specifiers-1" aria-hidden="true">TOC</a></span></h3> -<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’ or ’V’ for video, ’a’ for audio, ’s’ -for subtitle, ’d’ for data, and ’t’ for attachments. ’v’ matches all video -streams, ’V’ only matches video streams which are not attached pictures, video -thumbnails or cover arts. 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></dd> -<dt><samp>u</samp></dt> -<dd><p>Matches streams with usable configuration, the codec must be defined and the -essential information such as video dimension or audio sample rate must be present. -</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> -<h3 class="section">3.2 Generic options<span class="pull-right"><a class="anchor hidden-xs" href="#Generic-options" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-Generic-options" aria-hidden="true">TOC</a></span></h3> - -<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 (including devices). -</p> -</dd> -<dt><samp>-devices</samp></dt> -<dd><p>Show available devices. -</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>-sources <var>device</var>[,<var>opt1</var>=<var>val1</var>[,<var>opt2</var>=<var>val2</var>]...]</samp></dt> -<dd><p>Show autodetected sources of the intput device. -Some devices may provide system-dependent source names that cannot be autodetected. -The returned list cannot be assumed to be always complete. -</p><div class="example"> -<pre class="example">ffmpeg -sources pulse,server=192.168.0.4 -</pre></div> - -</dd> -<dt><samp>-sinks <var>device</var>[,<var>opt1</var>=<var>val1</var>[,<var>opt2</var>=<var>val2</var>]...]</samp></dt> -<dd><p>Show autodetected sinks of the output device. -Some devices may provide system-dependent sink names that cannot be autodetected. -The returned list cannot be assumed to be always complete. -</p><div class="example"> -<pre class="example">ffmpeg -sinks pulse,server=192.168.0.4 -</pre></div> - -</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 string or a number containing one of the following values: -</p><dl compact="compact"> -<dt>‘<samp>quiet, -8</samp>’</dt> -<dd><p>Show nothing at all; be silent. -</p></dd> -<dt>‘<samp>panic, 0</samp>’</dt> -<dd><p>Only show fatal errors which could lead the process to crash, such as -an assertion failure. This is not currently used for anything. -</p></dd> -<dt>‘<samp>fatal, 8</samp>’</dt> -<dd><p>Only show fatal errors. These are errors after which the process absolutely -cannot continue. -</p></dd> -<dt>‘<samp>error, 16</samp>’</dt> -<dd><p>Show all errors, including ones which can be recovered from. -</p></dd> -<dt>‘<samp>warning, 24</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, 32</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, 40</samp>’</dt> -<dd><p>Same as <code>info</code>, except more verbose. -</p></dd> -<dt>‘<samp>debug, 48</samp>’</dt> -<dd><p>Show everything, including debugging information. -</p></dd> -<dt>‘<samp>trace, 56</samp>’</dt> -</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 future 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; option values must be escaped if they -contain special characters or the options delimiter ’:’ (see the -“Quoting and escaping” section in the ffmpeg-utils manual). -</p> -<p>The following options are 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 verbosity level using a numerical value (see <code>-loglevel</code>). -</p></dd> -</dl> - -<p>For example, to output a report to a file named <samp>ffreport.log</samp> -using a log level of <code>32</code> (alias for log level <code>info</code>): -</p> -<div class="example"> -<pre class="example">FFREPORT=file=ffreport.log:level=32 ffmpeg -i input output -</pre></div> - -<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>This option is used to benchmark all available OpenCL devices and print the -results. This option is only available when FFmpeg has been compiled with -<code>--enable-opencl</code>. -</p> -<p>When FFmpeg is configured with <code>--enable-opencl</code>, the options for the -global OpenCL context are set via <samp>-opencl_options</samp>. See the -"OpenCL Options" section in the ffmpeg-utils manual for the complete list of -supported options. Amongst others, these options include the ability to select -a specific platform and device to run the OpenCL code on. By default, FFmpeg -will run on the first device of the first platform. While the options for the -global OpenCL context provide flexibility to the user in selecting the OpenCL -device of their choice, most users would probably want to select the fastest -OpenCL device for their system. -</p> -<p>This option assists the selection of the most efficient configuration by -identifying the appropriate device for the user’s system. The built-in -benchmark is run on all the OpenCL devices and the performance is measured for -each device. The devices in the results list are sorted based on their -performance with the fastest device listed first. The user can subsequently -invoke <code>ffmpeg</code> using the device deemed most appropriate via -<samp>-opencl_options</samp> to obtain the best performance for the OpenCL -accelerated code. -</p> -<p>Typical usage to use the fastest OpenCL device involve the following steps. -</p> -<p>Run the command: -</p><div class="example"> -<pre class="example">ffmpeg -opencl_bench -</pre></div> -<p>Note down the platform ID (<var>pidx</var>) and device ID (<var>didx</var>) of the first -i.e. fastest device in the list. -Select the platform and device using the command: -</p><div class="example"> -<pre class="example">ffmpeg -opencl_options platform_idx=<var>pidx</var>:device_idx=<var>didx</var> ... -</pre></div> - -</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> -<h3 class="section">3.3 AVOptions<span class="pull-right"><a class="anchor hidden-xs" href="#AVOptions" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-AVOptions" aria-hidden="true">TOC</a></span></h3> - -<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> -<h3 class="section">3.4 Main options<span class="pull-right"><a class="anchor hidden-xs" href="#Main-options" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-Main-options" aria-hidden="true">TOC</a></span></h3> - -<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>-fs</samp></dt> -<dd><p>Start in fullscreen mode. -</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>-sn</samp></dt> -<dd><p>Disable subtitles. -</p></dd> -<dt><samp>-ss <var>pos</var></samp></dt> -<dd><p>Seek to <var>pos</var>. Note that in most formats it is not possible to seek -exactly, so <code>ffplay</code> will seek to the nearest seek point to -<var>pos</var>. -</p> -<p><var>pos</var> must be a time duration specification, -see <a href="ffmpeg-utils.html#time-duration-syntax">(ffmpeg-utils)the Time duration section in the ffmpeg-utils(1) manual</a>. -</p></dd> -<dt><samp>-t <var>duration</var></samp></dt> -<dd><p>Play <var>duration</var> seconds of audio/video. -</p> -<p><var>duration</var> must be a time duration specification, -see <a href="ffmpeg-utils.html#time-duration-syntax">(ffmpeg-utils)the Time duration section in the ffmpeg-utils(1) manual</a>. -</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 <tt class="key">w</tt>. -</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 <tt class="key">w</tt>. -</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> -<h3 class="section">3.5 Advanced options<span class="pull-right"><a class="anchor hidden-xs" href="#Advanced-options" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-Advanced-options" aria-hidden="true">TOC</a></span></h3> -<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>-fast</samp></dt> -<dd><p>Non-spec-compliant optimizations. -</p></dd> -<dt><samp>-genpts</samp></dt> -<dd><p>Generate pts. -</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>-ast <var>audio_stream_specifier</var></samp></dt> -<dd><p>Select the desired audio stream using the given stream specifier. The stream -specifiers are described in the <a href="#Stream-specifiers">Stream specifiers</a> chapter. If this option -is not specified, the "best" audio stream is selected in the program of the -already selected video stream. -</p></dd> -<dt><samp>-vst <var>video_stream_specifier</var></samp></dt> -<dd><p>Select the desired video stream using the given stream specifier. The stream -specifiers are described in the <a href="#Stream-specifiers">Stream specifiers</a> chapter. If this option -is not specified, the "best" video stream is selected. -</p></dd> -<dt><samp>-sst <var>subtitle_stream_specifier</var></samp></dt> -<dd><p>Select the desired subtitle stream using the given stream specifier. The stream -specifiers are described in the <a href="#Stream-specifiers">Stream specifiers</a> chapter. If this option -is not specified, the "best" subtitle stream is selected in the program of the -already selected video or audio stream. -</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 file metadata. Enabled by -default, use <samp>-noautorotate</samp> to disable it. -</p> -</dd> -<dt><samp>-framedrop</samp></dt> -<dd><p>Drop video frames if video is out of sync. Enabled by default if the master -clock is not set to video. Use this option to enable frame dropping for all -master clock sources, use <samp>-noframedrop</samp> to disable it. -</p> -</dd> -<dt><samp>-infbuf</samp></dt> -<dd><p>Do not limit the input buffer size, read as much data as possible from the -input as soon as possible. Enabled by default for realtime streams, where data -may be dropped if not read in time. Use this option to enable infinite buffers -for all inputs, use <samp>-noinfbuf</samp> to disable it. -</p> -</dd> -</dl> - -<a name="While-playing"></a> -<h3 class="section">3.6 While playing<span class="pull-right"><a class="anchor hidden-xs" href="#While-playing" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-While-playing" aria-hidden="true">TOC</a></span></h3> - -<dl compact="compact"> -<dt><tt class="key">q, ESC</tt></dt> -<dd><p>Quit. -</p> -</dd> -<dt><tt class="key">f</tt></dt> -<dd><p>Toggle full screen. -</p> -</dd> -<dt><tt class="key">p, SPC</tt></dt> -<dd><p>Pause. -</p> -</dd> -<dt><tt class="key">m</tt></dt> -<dd><p>Toggle mute. -</p> -</dd> -<dt><tt class="key">9, 0</tt></dt> -<dd><p>Decrease and increase volume respectively. -</p> -</dd> -<dt><tt class="key">/, *</tt></dt> -<dd><p>Decrease and increase volume respectively. -</p> -</dd> -<dt><tt class="key">a</tt></dt> -<dd><p>Cycle audio channel in the current program. -</p> -</dd> -<dt><tt class="key">v</tt></dt> -<dd><p>Cycle video channel. -</p> -</dd> -<dt><tt class="key">t</tt></dt> -<dd><p>Cycle subtitle channel in the current program. -</p> -</dd> -<dt><tt class="key">c</tt></dt> -<dd><p>Cycle program. -</p> -</dd> -<dt><tt class="key">w</tt></dt> -<dd><p>Cycle video filters or show modes. -</p> -</dd> -<dt><tt class="key">s</tt></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><tt class="key">left/right</tt></dt> -<dd><p>Seek backward/forward 10 seconds. -</p> -</dd> -<dt><tt class="key">down/up</tt></dt> -<dd><p>Seek backward/forward 1 minute. -</p> -</dd> -<dt><tt class="key">page down/page up</tt></dt> -<dd><p>Seek to the previous/next chapter. -or if there are no chapters -Seek backward/forward 10 minutes. -</p> -</dd> -<dt><tt class="key">right mouse click</tt></dt> -<dd><p>Seek to percentage in file corresponding to fraction of width. -</p> -</dd> -<dt><tt class="key">left mouse double-click</tt></dt> -<dd><p>Toggle full screen. -</p> -</dd> -</dl> - - - -<a name="See-Also"></a> -<h2 class="chapter">4 See Also<span class="pull-right"><a class="anchor hidden-xs" href="#See-Also" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-See-Also" aria-hidden="true">TOC</a></span></h2> - -<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> -<h2 class="chapter">5 Authors<span class="pull-right"><a class="anchor hidden-xs" href="#Authors" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-Authors" aria-hidden="true">TOC</a></span></h2> - -<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 -<samp>MAINTAINERS</samp> in the source code tree. -</p> - - - <p style="font-size: small;"> - This document was generated using <a href="http://www.gnu.org/software/texinfo/"><em>makeinfo</em></a>. - </p> - </div> - </body> -</html> |