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| author | Indrajith K L | 2022-12-03 17:00:20 +0530 |
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| committer | Indrajith K L | 2022-12-03 17:00:20 +0530 |
| commit | f5c4671bfbad96bf346bd7e9a21fc4317b4959df (patch) | |
| tree | 2764fc62da58f2ba8da7ed341643fc359873142f /ffmpeg/doc/ffprobe.html | |
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diff --git a/ffmpeg/doc/ffprobe.html b/ffmpeg/doc/ffprobe.html new file mode 100644 index 0000000..9f46149 --- /dev/null +++ b/ffmpeg/doc/ffprobe.html @@ -0,0 +1,1219 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> +<html> +<!-- Created by GNU Texinfo 6.8, https://www.gnu.org/software/texinfo/ --> + <head> + <meta charset="utf-8"> + <title> + ffprobe 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> + ffprobe Documentation + </h1> +<div align="center"> +</div> + + +<a name="SEC_Top"></a> + +<div class="Contents_element" id="SEC_Contents"> +<h2 class="contents-heading">Table of Contents</h2> + +<div class="contents"> + +<ul class="no-bullet"> + <li><a id="toc-Synopsis" href="#Synopsis">1 Synopsis</a></li> + <li><a id="toc-Description" href="#Description">2 Description</a></li> + <li><a id="toc-Options" href="#Options">3 Options</a> + <ul class="no-bullet"> + <li><a id="toc-Stream-specifiers-1" href="#Stream-specifiers-1">3.1 Stream specifiers</a></li> + <li><a id="toc-Generic-options" href="#Generic-options">3.2 Generic options</a></li> + <li><a id="toc-AVOptions" href="#AVOptions">3.3 AVOptions</a></li> + <li><a id="toc-Main-options" href="#Main-options">3.4 Main options</a></li> + </ul></li> + <li><a id="toc-Writers" href="#Writers">4 Writers</a> + <ul class="no-bullet"> + <li><a id="toc-default" href="#default">4.1 default</a></li> + <li><a id="toc-compact_002c-csv" href="#compact_002c-csv">4.2 compact, csv</a></li> + <li><a id="toc-flat" href="#flat">4.3 flat</a></li> + <li><a id="toc-ini" href="#ini">4.4 ini</a></li> + <li><a id="toc-json" href="#json">4.5 json</a></li> + <li><a id="toc-xml" href="#xml">4.6 xml</a></li> + </ul></li> + <li><a id="toc-Timecode" href="#Timecode">5 Timecode</a></li> + <li><a id="toc-See-Also" href="#See-Also">6 See Also</a></li> + <li><a id="toc-Authors" href="#Authors">7 Authors</a></li> +</ul> +</div> +</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>ffprobe [<var>options</var>] <samp>input_url</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>ffprobe gathers information from multimedia streams and prints it in +human- and machine-readable fashion. +</p> +<p>For example it can be used to check the format of the container used +by a multimedia stream and the format and type of each media stream +contained in it. +</p> +<p>If a url is specified in input, ffprobe will try to open and +probe the url content. If the url cannot be opened or recognized as +a multimedia file, a positive exit code is returned. +</p> +<p>If no output is specified as output with <samp>o</samp> ffprobe will write +to stdout. +</p> +<p>ffprobe may be employed both as a standalone application or in +combination with a textual filter, which may perform more +sophisticated processing, e.g. statistical processing or plotting. +</p> +<p>Options are used to list some of the formats supported by ffprobe or +for specifying which information to display, and for setting how +ffprobe will show it. +</p> +<p>ffprobe output is designed to be easily parsable by a textual filter, +and consists of one or more sections of a form defined by the selected +writer, which is specified by the <samp>print_format</samp> option. +</p> +<p>Sections may contain other nested sections, and are identified by a +name (which may be shared by other sections), and an unique +name. See the output of <samp>sections</samp>. +</p> +<p>Metadata tags stored in the container or in the streams are recognized +and printed in the corresponding "FORMAT", "STREAM" or "PROGRAM_STREAM" +section. +</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> +<span id="Stream-specifiers"></span><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><span><samp><var>stream_index</var></samp></span></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. If <var>stream_index</var> is used as an +additional stream specifier (see below), then it selects stream number +<var>stream_index</var> from the matching streams. Stream numbering is based on the +order of the streams as detected by libavformat except when a program ID is +also specified. In this case it is based on the ordering of the streams in the +program. +</p></dd> +<dt><span><samp><var>stream_type</var>[:<var>additional_stream_specifier</var>]</samp></span></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>additional_stream_specifier</var> is used, then +it matches streams which both have this type and match the +<var>additional_stream_specifier</var>. Otherwise, it matches all streams of the +specified type. +</p></dd> +<dt><span><samp>p:<var>program_id</var>[:<var>additional_stream_specifier</var>]</samp></span></dt> +<dd><p>Matches streams which are in the program with the id <var>program_id</var>. If +<var>additional_stream_specifier</var> is used, then it matches streams which both +are part of the program and match the <var>additional_stream_specifier</var>. +</p> +</dd> +<dt><span><samp>#<var>stream_id</var> or i:<var>stream_id</var></samp></span></dt> +<dd><p>Match the stream by stream id (e.g. PID in MPEG-TS container). +</p></dd> +<dt><span><samp>m:<var>key</var>[:<var>value</var>]</samp></span></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><span><samp>u</samp></span></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><span><samp>-L</samp></span></dt> +<dd><p>Show license. +</p> +</dd> +<dt><span><samp>-h, -?, -help, --help [<var>arg</var>]</samp></span></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><span><samp>long</samp></span></dt> +<dd><p>Print advanced tool options in addition to the basic tool options. +</p> +</dd> +<dt><span><samp>full</samp></span></dt> +<dd><p>Print complete list of options, including shared and private options +for encoders, decoders, demuxers, muxers, filters, etc. +</p> +</dd> +<dt><span><samp>decoder=<var>decoder_name</var></samp></span></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><span><samp>encoder=<var>encoder_name</var></samp></span></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><span><samp>demuxer=<var>demuxer_name</var></samp></span></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><span><samp>muxer=<var>muxer_name</var></samp></span></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><span><samp>filter=<var>filter_name</var></samp></span></dt> +<dd><p>Print detailed information about the filter named <var>filter_name</var>. Use the +<samp>-filters</samp> option to get a list of all filters. +</p> +</dd> +<dt><span><samp>bsf=<var>bitstream_filter_name</var></samp></span></dt> +<dd><p>Print detailed information about the bitstream filter named <var>bitstream_filter_name</var>. +Use the <samp>-bsfs</samp> option to get a list of all bitstream filters. +</p> +</dd> +<dt><span><samp>protocol=<var>protocol_name</var></samp></span></dt> +<dd><p>Print detailed information about the protocol named <var>protocol_name</var>. +Use the <samp>-protocols</samp> option to get a list of all protocols. +</p></dd> +</dl> + +</dd> +<dt><span><samp>-version</samp></span></dt> +<dd><p>Show version. +</p> +</dd> +<dt><span><samp>-buildconf</samp></span></dt> +<dd><p>Show the build configuration, one option per line. +</p> +</dd> +<dt><span><samp>-formats</samp></span></dt> +<dd><p>Show available formats (including devices). +</p> +</dd> +<dt><span><samp>-demuxers</samp></span></dt> +<dd><p>Show available demuxers. +</p> +</dd> +<dt><span><samp>-muxers</samp></span></dt> +<dd><p>Show available muxers. +</p> +</dd> +<dt><span><samp>-devices</samp></span></dt> +<dd><p>Show available devices. +</p> +</dd> +<dt><span><samp>-codecs</samp></span></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><span><samp>-decoders</samp></span></dt> +<dd><p>Show available decoders. +</p> +</dd> +<dt><span><samp>-encoders</samp></span></dt> +<dd><p>Show all available encoders. +</p> +</dd> +<dt><span><samp>-bsfs</samp></span></dt> +<dd><p>Show available bitstream filters. +</p> +</dd> +<dt><span><samp>-protocols</samp></span></dt> +<dd><p>Show available protocols. +</p> +</dd> +<dt><span><samp>-filters</samp></span></dt> +<dd><p>Show available libavfilter filters. +</p> +</dd> +<dt><span><samp>-pix_fmts</samp></span></dt> +<dd><p>Show available pixel formats. +</p> +</dd> +<dt><span><samp>-sample_fmts</samp></span></dt> +<dd><p>Show available sample formats. +</p> +</dd> +<dt><span><samp>-layouts</samp></span></dt> +<dd><p>Show channel names and standard channel layouts. +</p> +</dd> +<dt><span><samp>-dispositions</samp></span></dt> +<dd><p>Show stream dispositions. +</p> +</dd> +<dt><span><samp>-colors</samp></span></dt> +<dd><p>Show recognized color names. +</p> +</dd> +<dt><span><samp>-sources <var>device</var>[,<var>opt1</var>=<var>val1</var>[,<var>opt2</var>=<var>val2</var>]...]</samp></span></dt> +<dd><p>Show autodetected sources of the input 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><span><samp>-sinks <var>device</var>[,<var>opt1</var>=<var>val1</var>[,<var>opt2</var>=<var>val2</var>]...]</samp></span></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><span><samp>-loglevel [<var>flags</var>+]<var>loglevel</var> | -v [<var>flags</var>+]<var>loglevel</var></samp></span></dt> +<dd><p>Set logging level and flags used by the library. +</p> +<p>The optional <var>flags</var> prefix can consist of the following values: +</p><dl compact="compact"> +<dt><span>‘<samp>repeat</samp>’</span></dt> +<dd><p>Indicates that repeated log output should not be compressed to the first line +and the "Last message repeated n times" line will be omitted. +</p></dd> +<dt><span>‘<samp>level</samp>’</span></dt> +<dd><p>Indicates that log output should add a <code>[level]</code> prefix to each message +line. This can be used as an alternative to log coloring, e.g. when dumping the +log to file. +</p></dd> +</dl> +<p>Flags can also be used alone by adding a ’+’/’-’ prefix to set/reset a single +flag without affecting other <var>flags</var> or changing <var>loglevel</var>. When +setting both <var>flags</var> and <var>loglevel</var>, a ’+’ separator is expected +between the last <var>flags</var> value and before <var>loglevel</var>. +</p> +<p><var>loglevel</var> is a string or a number containing one of the following values: +</p><dl compact="compact"> +<dt><span>‘<samp>quiet, -8</samp>’</span></dt> +<dd><p>Show nothing at all; be silent. +</p></dd> +<dt><span>‘<samp>panic, 0</samp>’</span></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><span>‘<samp>fatal, 8</samp>’</span></dt> +<dd><p>Only show fatal errors. These are errors after which the process absolutely +cannot continue. +</p></dd> +<dt><span>‘<samp>error, 16</samp>’</span></dt> +<dd><p>Show all errors, including ones which can be recovered from. +</p></dd> +<dt><span>‘<samp>warning, 24</samp>’</span></dt> +<dd><p>Show all warnings and errors. Any message related to possibly +incorrect or unexpected events will be shown. +</p></dd> +<dt><span>‘<samp>info, 32</samp>’</span></dt> +<dd><p>Show informative messages during processing. This is in addition to +warnings and errors. This is the default value. +</p></dd> +<dt><span>‘<samp>verbose, 40</samp>’</span></dt> +<dd><p>Same as <code>info</code>, except more verbose. +</p></dd> +<dt><span>‘<samp>debug, 48</samp>’</span></dt> +<dd><p>Show everything, including debugging information. +</p></dd> +<dt><span>‘<samp>trace, 56</samp>’</span></dt> +</dl> + +<p>For example to enable repeated log output, add the <code>level</code> prefix, and set +<var>loglevel</var> to <code>verbose</code>: +</p><div class="example"> +<pre class="example">ffmpeg -loglevel repeat+level+verbose -i input output +</pre></div> +<p>Another example that enables repeated log output without affecting current +state of <code>level</code> prefix flag or <var>loglevel</var>: +</p><div class="example"> +<pre class="example">ffmpeg [...] -loglevel +repeat +</pre></div> + +<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 can be forced setting +the environment variable <code>AV_LOG_FORCE_COLOR</code>. +</p> +</dd> +<dt><span><samp>-report</samp></span></dt> +<dd><p>Dump full command line and log 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 debug</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><span><samp>file</samp></span></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><span><samp>level</samp></span></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><span><samp>-hide_banner</samp></span></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><span><samp>-cpuflags flags (<em>global</em>)</samp></span></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><span>‘<samp>x86</samp>’</span></dt> +<dd><dl compact="compact"> +<dt><span>‘<samp>mmx</samp>’</span></dt> +<dt><span>‘<samp>mmxext</samp>’</span></dt> +<dt><span>‘<samp>sse</samp>’</span></dt> +<dt><span>‘<samp>sse2</samp>’</span></dt> +<dt><span>‘<samp>sse2slow</samp>’</span></dt> +<dt><span>‘<samp>sse3</samp>’</span></dt> +<dt><span>‘<samp>sse3slow</samp>’</span></dt> +<dt><span>‘<samp>ssse3</samp>’</span></dt> +<dt><span>‘<samp>atom</samp>’</span></dt> +<dt><span>‘<samp>sse4.1</samp>’</span></dt> +<dt><span>‘<samp>sse4.2</samp>’</span></dt> +<dt><span>‘<samp>avx</samp>’</span></dt> +<dt><span>‘<samp>avx2</samp>’</span></dt> +<dt><span>‘<samp>xop</samp>’</span></dt> +<dt><span>‘<samp>fma3</samp>’</span></dt> +<dt><span>‘<samp>fma4</samp>’</span></dt> +<dt><span>‘<samp>3dnow</samp>’</span></dt> +<dt><span>‘<samp>3dnowext</samp>’</span></dt> +<dt><span>‘<samp>bmi1</samp>’</span></dt> +<dt><span>‘<samp>bmi2</samp>’</span></dt> +<dt><span>‘<samp>cmov</samp>’</span></dt> +</dl> +</dd> +<dt><span>‘<samp>ARM</samp>’</span></dt> +<dd><dl compact="compact"> +<dt><span>‘<samp>armv5te</samp>’</span></dt> +<dt><span>‘<samp>armv6</samp>’</span></dt> +<dt><span>‘<samp>armv6t2</samp>’</span></dt> +<dt><span>‘<samp>vfp</samp>’</span></dt> +<dt><span>‘<samp>vfpv3</samp>’</span></dt> +<dt><span>‘<samp>neon</samp>’</span></dt> +<dt><span>‘<samp>setend</samp>’</span></dt> +</dl> +</dd> +<dt><span>‘<samp>AArch64</samp>’</span></dt> +<dd><dl compact="compact"> +<dt><span>‘<samp>armv8</samp>’</span></dt> +<dt><span>‘<samp>vfp</samp>’</span></dt> +<dt><span>‘<samp>neon</samp>’</span></dt> +</dl> +</dd> +<dt><span>‘<samp>PowerPC</samp>’</span></dt> +<dd><dl compact="compact"> +<dt><span>‘<samp>altivec</samp>’</span></dt> +</dl> +</dd> +<dt><span>‘<samp>Specific Processors</samp>’</span></dt> +<dd><dl compact="compact"> +<dt><span>‘<samp>pentium2</samp>’</span></dt> +<dt><span>‘<samp>pentium3</samp>’</span></dt> +<dt><span>‘<samp>pentium4</samp>’</span></dt> +<dt><span>‘<samp>k6</samp>’</span></dt> +<dt><span>‘<samp>k62</samp>’</span></dt> +<dt><span>‘<samp>athlon</samp>’</span></dt> +<dt><span>‘<samp>athlonxp</samp>’</span></dt> +<dt><span>‘<samp>k8</samp>’</span></dt> +</dl> +</dd> +</dl> + +</dd> +<dt><span><samp>-cpucount <var>count</var> (<em>global</em>)</samp></span></dt> +<dd><p>Override detection of CPU count. 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 -cpucount 2 +</pre></div> + +</dd> +<dt><span><samp>-max_alloc <var>bytes</var></samp></span></dt> +<dd><p>Set the maximum size limit for allocating a block on the heap by ffmpeg’s +family of malloc functions. Exercise <strong>extreme caution</strong> when using +this option. Don’t use if you do not understand the full consequence of doing so. +Default is INT_MAX. +</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><span><samp>generic</samp></span></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><span><samp>private</samp></span></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><div class="example"> +<pre class="example">ffmpeg -i multichannel.mxf -map 0:v:0 -map 0:a:0 -map 0:a:0 -c:a:0 ac3 -b:a:0 640k -ac:a:1 2 -c:a:1 aac -b:2 128k out.mp4 +</pre></div> + +<p>In the above example, a multichannel audio stream is mapped twice for output. +The first instance is encoded with codec ac3 and bitrate 640k. +The second instance is downmixed to 2 channels and encoded with codec aac. A bitrate of 128k is specified for it using +absolute index of the output stream. +</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><span><samp>-f <var>format</var></samp></span></dt> +<dd><p>Force format to use. +</p> +</dd> +<dt><span><samp>-unit</samp></span></dt> +<dd><p>Show the unit of the displayed values. +</p> +</dd> +<dt><span><samp>-prefix</samp></span></dt> +<dd><p>Use SI prefixes for the displayed values. +Unless the "-byte_binary_prefix" option is used all the prefixes +are decimal. +</p> +</dd> +<dt><span><samp>-byte_binary_prefix</samp></span></dt> +<dd><p>Force the use of binary prefixes for byte values. +</p> +</dd> +<dt><span><samp>-sexagesimal</samp></span></dt> +<dd><p>Use sexagesimal format HH:MM:SS.MICROSECONDS for time values. +</p> +</dd> +<dt><span><samp>-pretty</samp></span></dt> +<dd><p>Prettify the format of the displayed values, it corresponds to the +options "-unit -prefix -byte_binary_prefix -sexagesimal". +</p> +</dd> +<dt><span><samp>-of, -print_format <var>writer_name</var>[=<var>writer_options</var>]</samp></span></dt> +<dd><p>Set the output printing format. +</p> +<p><var>writer_name</var> specifies the name of the writer, and +<var>writer_options</var> specifies the options to be passed to the writer. +</p> +<p>For example for printing the output in JSON format, specify: +</p><div class="example"> +<pre class="example">-print_format json +</pre></div> + +<p>For more details on the available output printing formats, see the +Writers section below. +</p> +</dd> +<dt><span><samp>-sections</samp></span></dt> +<dd><p>Print sections structure and section information, and exit. The output +is not meant to be parsed by a machine. +</p> +</dd> +<dt><span><samp>-select_streams <var>stream_specifier</var></samp></span></dt> +<dd><p>Select only the streams specified by <var>stream_specifier</var>. This +option affects only the options related to streams +(e.g. <code>show_streams</code>, <code>show_packets</code>, etc.). +</p> +<p>For example to show only audio streams, you can use the command: +</p><div class="example"> +<pre class="example">ffprobe -show_streams -select_streams a INPUT +</pre></div> + +<p>To show only video packets belonging to the video stream with index 1: +</p><div class="example"> +<pre class="example">ffprobe -show_packets -select_streams v:1 INPUT +</pre></div> + +</dd> +<dt><span><samp>-show_data</samp></span></dt> +<dd><p>Show payload data, as a hexadecimal and ASCII dump. Coupled with +<samp>-show_packets</samp>, it will dump the packets’ data. Coupled with +<samp>-show_streams</samp>, it will dump the codec extradata. +</p> +<p>The dump is printed as the "data" field. It may contain newlines. +</p> +</dd> +<dt><span><samp>-show_data_hash <var>algorithm</var></samp></span></dt> +<dd><p>Show a hash of payload data, for packets with <samp>-show_packets</samp> and for +codec extradata with <samp>-show_streams</samp>. +</p> +</dd> +<dt><span><samp>-show_error</samp></span></dt> +<dd><p>Show information about the error found when trying to probe the input. +</p> +<p>The error information is printed within a section with name "ERROR". +</p> +</dd> +<dt><span><samp>-show_format</samp></span></dt> +<dd><p>Show information about the container format of the input multimedia +stream. +</p> +<p>All the container format information is printed within a section with +name "FORMAT". +</p> +</dd> +<dt><span><samp>-show_format_entry <var>name</var></samp></span></dt> +<dd><p>Like <samp>-show_format</samp>, but only prints the specified entry of the +container format information, rather than all. This option may be given more +than once, then all specified entries will be shown. +</p> +<p>This option is deprecated, use <code>show_entries</code> instead. +</p> +</dd> +<dt><span><samp>-show_entries <var>section_entries</var></samp></span></dt> +<dd><p>Set list of entries to show. +</p> +<p>Entries are specified according to the following +syntax. <var>section_entries</var> contains a list of section entries +separated by <code>:</code>. Each section entry is composed by a section +name (or unique name), optionally followed by a list of entries local +to that section, separated by <code>,</code>. +</p> +<p>If section name is specified but is followed by no <code>=</code>, all +entries are printed to output, together with all the contained +sections. Otherwise only the entries specified in the local section +entries list are printed. In particular, if <code>=</code> is specified but +the list of local entries is empty, then no entries will be shown for +that section. +</p> +<p>Note that the order of specification of the local section entries is +not honored in the output, and the usual display order will be +retained. +</p> +<p>The formal syntax is given by: +</p><div class="example"> +<pre class="example"><var>LOCAL_SECTION_ENTRIES</var> ::= <var>SECTION_ENTRY_NAME</var>[,<var>LOCAL_SECTION_ENTRIES</var>] +<var>SECTION_ENTRY</var> ::= <var>SECTION_NAME</var>[=[<var>LOCAL_SECTION_ENTRIES</var>]] +<var>SECTION_ENTRIES</var> ::= <var>SECTION_ENTRY</var>[:<var>SECTION_ENTRIES</var>] +</pre></div> + +<p>For example, to show only the index and type of each stream, and the PTS +time, duration time, and stream index of the packets, you can specify +the argument: +</p><div class="example"> +<pre class="example">packet=pts_time,duration_time,stream_index : stream=index,codec_type +</pre></div> + +<p>To show all the entries in the section "format", but only the codec +type in the section "stream", specify the argument: +</p><div class="example"> +<pre class="example">format : stream=codec_type +</pre></div> + +<p>To show all the tags in the stream and format sections: +</p><div class="example"> +<pre class="example">stream_tags : format_tags +</pre></div> + +<p>To show only the <code>title</code> tag (if available) in the stream +sections: +</p><div class="example"> +<pre class="example">stream_tags=title +</pre></div> + +</dd> +<dt><span><samp>-show_packets</samp></span></dt> +<dd><p>Show information about each packet contained in the input multimedia +stream. +</p> +<p>The information for each single packet is printed within a dedicated +section with name "PACKET". +</p> +</dd> +<dt><span><samp>-show_frames</samp></span></dt> +<dd><p>Show information about each frame and subtitle contained in the input +multimedia stream. +</p> +<p>The information for each single frame is printed within a dedicated +section with name "FRAME" or "SUBTITLE". +</p> +</dd> +<dt><span><samp>-show_log <var>loglevel</var></samp></span></dt> +<dd><p>Show logging information from the decoder about each frame according to +the value set in <var>loglevel</var>, (see <code>-loglevel</code>). This option requires <code>-show_frames</code>. +</p> +<p>The information for each log message is printed within a dedicated +section with name "LOG". +</p> +</dd> +<dt><span><samp>-show_streams</samp></span></dt> +<dd><p>Show information about each media stream contained in the input +multimedia stream. +</p> +<p>Each media stream information is printed within a dedicated section +with name "STREAM". +</p> +</dd> +<dt><span><samp>-show_programs</samp></span></dt> +<dd><p>Show information about programs and their streams contained in the input +multimedia stream. +</p> +<p>Each media stream information is printed within a dedicated section +with name "PROGRAM_STREAM". +</p> +</dd> +<dt><span><samp>-show_chapters</samp></span></dt> +<dd><p>Show information about chapters stored in the format. +</p> +<p>Each chapter is printed within a dedicated section with name "CHAPTER". +</p> +</dd> +<dt><span><samp>-count_frames</samp></span></dt> +<dd><p>Count the number of frames per stream and report it in the +corresponding stream section. +</p> +</dd> +<dt><span><samp>-count_packets</samp></span></dt> +<dd><p>Count the number of packets per stream and report it in the +corresponding stream section. +</p> +</dd> +<dt><span><samp>-read_intervals <var>read_intervals</var></samp></span></dt> +<dd> +<p>Read only the specified intervals. <var>read_intervals</var> must be a +sequence of interval specifications separated by ",". +<code>ffprobe</code> will seek to the interval starting point, and will +continue reading from that. +</p> +<p>Each interval is specified by two optional parts, separated by "%". +</p> +<p>The first part specifies the interval start position. It is +interpreted as an absolute position, or as a relative offset from the +current position if it is preceded by the "+" character. If this first +part is not specified, no seeking will be performed when reading this +interval. +</p> +<p>The second part specifies the interval end position. It is interpreted +as an absolute position, or as a relative offset from the current +position if it is preceded by the "+" character. If the offset +specification starts with "#", it is interpreted as the number of +packets to read (not including the flushing packets) from the interval +start. If no second part is specified, the program will read until the +end of the input. +</p> +<p>Note that seeking is not accurate, thus the actual interval start +point may be different from the specified position. Also, when an +interval duration is specified, the absolute end time will be computed +by adding the duration to the interval start point found by seeking +the file, rather than to the specified start value. +</p> +<p>The formal syntax is given by: +</p><div class="example"> +<pre class="example"><var>INTERVAL</var> ::= [<var>START</var>|+<var>START_OFFSET</var>][%[<var>END</var>|+<var>END_OFFSET</var>]] +<var>INTERVALS</var> ::= <var>INTERVAL</var>[,<var>INTERVALS</var>] +</pre></div> + +<p>A few examples follow. +</p><ul> +<li> Seek to time 10, read packets until 20 seconds after the found seek +point, then seek to position <code>01:30</code> (1 minute and thirty +seconds) and read packets until position <code>01:45</code>. +<div class="example"> +<pre class="example">10%+20,01:30%01:45 +</pre></div> + +</li><li> Read only 42 packets after seeking to position <code>01:23</code>: +<div class="example"> +<pre class="example">01:23%+#42 +</pre></div> + +</li><li> Read only the first 20 seconds from the start: +<div class="example"> +<pre class="example">%+20 +</pre></div> + +</li><li> Read from the start until position <code>02:30</code>: +<div class="example"> +<pre class="example">%02:30 +</pre></div> +</li></ul> + +</dd> +<dt><span><samp>-show_private_data, -private</samp></span></dt> +<dd><p>Show private data, that is data depending on the format of the +particular shown element. +This option is enabled by default, but you may need to disable it +for specific uses, for example when creating XSD-compliant XML output. +</p> +</dd> +<dt><span><samp>-show_program_version</samp></span></dt> +<dd><p>Show information related to program version. +</p> +<p>Version information is printed within a section with name +"PROGRAM_VERSION". +</p> +</dd> +<dt><span><samp>-show_library_versions</samp></span></dt> +<dd><p>Show information related to library versions. +</p> +<p>Version information for each library is printed within a section with +name "LIBRARY_VERSION". +</p> +</dd> +<dt><span><samp>-show_versions</samp></span></dt> +<dd><p>Show information related to program and library versions. This is the +equivalent of setting both <samp>-show_program_version</samp> and +<samp>-show_library_versions</samp> options. +</p> +</dd> +<dt><span><samp>-show_pixel_formats</samp></span></dt> +<dd><p>Show information about all pixel formats supported by FFmpeg. +</p> +<p>Pixel format information for each format is printed within a section +with name "PIXEL_FORMAT". +</p> +</dd> +<dt><span><samp>-show_optional_fields <var>value</var></samp></span></dt> +<dd><p>Some writers viz. JSON and XML, omit the printing of fields with invalid or non-applicable values, +while other writers always print them. This option enables one to control this behaviour. +Valid values are <code>always</code>/<code>1</code>, <code>never</code>/<code>0</code> and <code>auto</code>/<code>-1</code>. +Default is <var>auto</var>. +</p> +</dd> +<dt><span><samp>-bitexact</samp></span></dt> +<dd><p>Force bitexact output, useful to produce output which is not dependent +on the specific build. +</p> +</dd> +<dt><span><samp>-i <var>input_url</var></samp></span></dt> +<dd><p>Read <var>input_url</var>. +</p> +</dd> +<dt><span><samp>-o <var>output_url</var></samp></span></dt> +<dd><p>Write output to <var>output_url</var>. If not specified, the output is sent +to stdout. +</p> +</dd> +</dl> + +<a name="Writers"></a> +<h2 class="chapter">4 Writers<span class="pull-right"><a class="anchor hidden-xs" href="#Writers" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-Writers" aria-hidden="true">TOC</a></span></h2> + +<p>A writer defines the output format adopted by <code>ffprobe</code>, and will be +used for printing all the parts of the output. +</p> +<p>A writer may accept one or more arguments, which specify the options +to adopt. The options are specified as a list of <var>key</var>=<var>value</var> +pairs, separated by ":". +</p> +<p>All writers support the following options: +</p> +<dl compact="compact"> +<dt><span><samp>string_validation, sv</samp></span></dt> +<dd><p>Set string validation mode. +</p> +<p>The following values are accepted. +</p><dl compact="compact"> +<dt><span>‘<samp>fail</samp>’</span></dt> +<dd><p>The writer will fail immediately in case an invalid string (UTF-8) +sequence or code point is found in the input. This is especially +useful to validate input metadata. +</p> +</dd> +<dt><span>‘<samp>ignore</samp>’</span></dt> +<dd><p>Any validation error will be ignored. This will result in possibly +broken output, especially with the json or xml writer. +</p> +</dd> +<dt><span>‘<samp>replace</samp>’</span></dt> +<dd><p>The writer will substitute invalid UTF-8 sequences or code points with +the string specified with the <samp>string_validation_replacement</samp>. +</p></dd> +</dl> + +<p>Default value is ‘<samp>replace</samp>’. +</p> +</dd> +<dt><span><samp>string_validation_replacement, svr</samp></span></dt> +<dd><p>Set replacement string to use in case <samp>string_validation</samp> is +set to ‘<samp>replace</samp>’. +</p> +<p>In case the option is not specified, the writer will assume the empty +string, that is it will remove the invalid sequences from the input +strings. +</p></dd> +</dl> + +<p>A description of the currently available writers follows. +</p> +<a name="default"></a> +<h3 class="section">4.1 default<span class="pull-right"><a class="anchor hidden-xs" href="#default" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-default" aria-hidden="true">TOC</a></span></h3> +<p>Default format. +</p> +<p>Print each section in the form: +</p><div class="example"> +<pre class="example">[SECTION] +key1=val1 +... +keyN=valN +[/SECTION] +</pre></div> + +<p>Metadata tags are printed as a line in the corresponding FORMAT, STREAM or +PROGRAM_STREAM section, and are prefixed by the string "TAG:". +</p> +<p>A description of the accepted options follows. +</p> +<dl compact="compact"> +<dt><span><samp>nokey, nk</samp></span></dt> +<dd><p>If set to 1 specify not to print the key of each field. Default value +is 0. +</p> +</dd> +<dt><span><samp>noprint_wrappers, nw</samp></span></dt> +<dd><p>If set to 1 specify not to print the section header and footer. +Default value is 0. +</p></dd> +</dl> + +<a name="compact_002c-csv"></a> +<h3 class="section">4.2 compact, csv<span class="pull-right"><a class="anchor hidden-xs" href="#compact_002c-csv" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-compact_002c-csv" aria-hidden="true">TOC</a></span></h3> +<p>Compact and CSV format. +</p> +<p>The <code>csv</code> writer is equivalent to <code>compact</code>, but supports +different defaults. +</p> +<p>Each section is printed on a single line. +If no option is specified, the output has the form: +</p><div class="example"> +<pre class="example">section|key1=val1| ... |keyN=valN +</pre></div> + +<p>Metadata tags are printed in the corresponding "format" or "stream" +section. A metadata tag key, if printed, is prefixed by the string +"tag:". +</p> +<p>The description of the accepted options follows. +</p> +<dl compact="compact"> +<dt><span><samp>item_sep, s</samp></span></dt> +<dd><p>Specify the character to use for separating fields in the output line. +It must be a single printable character, it is "|" by default ("," for +the <code>csv</code> writer). +</p> +</dd> +<dt><span><samp>nokey, nk</samp></span></dt> +<dd><p>If set to 1 specify not to print the key of each field. Its default +value is 0 (1 for the <code>csv</code> writer). +</p> +</dd> +<dt><span><samp>escape, e</samp></span></dt> +<dd><p>Set the escape mode to use, default to "c" ("csv" for the <code>csv</code> +writer). +</p> +<p>It can assume one of the following values: +</p><dl compact="compact"> +<dt><span><samp>c</samp></span></dt> +<dd><p>Perform C-like escaping. Strings containing a newline (‘<samp>\n</samp>’), carriage +return (‘<samp>\r</samp>’), a tab (‘<samp>\t</samp>’), a form feed (‘<samp>\f</samp>’), the escaping +character (‘<samp>\</samp>’) or the item separator character <var>SEP</var> are escaped +using C-like fashioned escaping, so that a newline is converted to the +sequence ‘<samp>\n</samp>’, a carriage return to ‘<samp>\r</samp>’, ‘<samp>\</samp>’ to ‘<samp>\\</samp>’ and +the separator <var>SEP</var> is converted to ‘<samp>\<var>SEP</var></samp>’. +</p> +</dd> +<dt><span><samp>csv</samp></span></dt> +<dd><p>Perform CSV-like escaping, as described in RFC4180. Strings +containing a newline (‘<samp>\n</samp>’), a carriage return (‘<samp>\r</samp>’), a double quote +(‘<samp>"</samp>’), or <var>SEP</var> are enclosed in double-quotes. +</p> +</dd> +<dt><span><samp>none</samp></span></dt> +<dd><p>Perform no escaping. +</p></dd> +</dl> + +</dd> +<dt><span><samp>print_section, p</samp></span></dt> +<dd><p>Print the section name at the beginning of each line if the value is +<code>1</code>, disable it with value set to <code>0</code>. Default value is +<code>1</code>. +</p> +</dd> +</dl> + +<a name="flat"></a> +<h3 class="section">4.3 flat<span class="pull-right"><a class="anchor hidden-xs" href="#flat" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-flat" aria-hidden="true">TOC</a></span></h3> +<p>Flat format. +</p> +<p>A free-form output where each line contains an explicit key=value, such as +"streams.stream.3.tags.foo=bar". The output is shell escaped, so it can be +directly embedded in sh scripts as long as the separator character is an +alphanumeric character or an underscore (see <var>sep_char</var> option). +</p> +<p>The description of the accepted options follows. +</p> +<dl compact="compact"> +<dt><span><samp>sep_char, s</samp></span></dt> +<dd><p>Separator character used to separate the chapter, the section name, IDs and +potential tags in the printed field key. +</p> +<p>Default value is ‘<samp>.</samp>’. +</p> +</dd> +<dt><span><samp>hierarchical, h</samp></span></dt> +<dd><p>Specify if the section name specification should be hierarchical. If +set to 1, and if there is more than one section in the current +chapter, the section name will be prefixed by the name of the +chapter. A value of 0 will disable this behavior. +</p> +<p>Default value is 1. +</p></dd> +</dl> + +<a name="ini"></a> +<h3 class="section">4.4 ini<span class="pull-right"><a class="anchor hidden-xs" href="#ini" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-ini" aria-hidden="true">TOC</a></span></h3> +<p>INI format output. +</p> +<p>Print output in an INI based format. +</p> +<p>The following conventions are adopted: +</p> +<ul> +<li> all key and values are UTF-8 +</li><li> ‘<samp>.</samp>’ is the subgroup separator +</li><li> newline, ‘<samp>\t</samp>’, ‘<samp>\f</samp>’, ‘<samp>\b</samp>’ and the following characters are +escaped +</li><li> ‘<samp>\</samp>’ is the escape character +</li><li> ‘<samp>#</samp>’ is the comment indicator +</li><li> ‘<samp>=</samp>’ is the key/value separator +</li><li> ‘<samp>:</samp>’ is not used but usually parsed as key/value separator +</li></ul> + +<p>This writer accepts options as a list of <var>key</var>=<var>value</var> pairs, +separated by ‘<samp>:</samp>’. +</p> +<p>The description of the accepted options follows. +</p> +<dl compact="compact"> +<dt><span><samp>hierarchical, h</samp></span></dt> +<dd><p>Specify if the section name specification should be hierarchical. If +set to 1, and if there is more than one section in the current +chapter, the section name will be prefixed by the name of the +chapter. A value of 0 will disable this behavior. +</p> +<p>Default value is 1. +</p></dd> +</dl> + +<a name="json"></a> +<h3 class="section">4.5 json<span class="pull-right"><a class="anchor hidden-xs" href="#json" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-json" aria-hidden="true">TOC</a></span></h3> +<p>JSON based format. +</p> +<p>Each section is printed using JSON notation. +</p> +<p>The description of the accepted options follows. +</p> +<dl compact="compact"> +<dt><span><samp>compact, c</samp></span></dt> +<dd><p>If set to 1 enable compact output, that is each section will be +printed on a single line. Default value is 0. +</p></dd> +</dl> + +<p>For more information about JSON, see <a href="http://www.json.org/">http://www.json.org/</a>. +</p> +<a name="xml"></a> +<h3 class="section">4.6 xml<span class="pull-right"><a class="anchor hidden-xs" href="#xml" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-xml" aria-hidden="true">TOC</a></span></h3> +<p>XML based format. +</p> +<p>The XML output is described in the XML schema description file +<samp>ffprobe.xsd</samp> installed in the FFmpeg datadir. +</p> +<p>An updated version of the schema can be retrieved at the url +<a href="http://www.ffmpeg.org/schema/ffprobe.xsd">http://www.ffmpeg.org/schema/ffprobe.xsd</a>, which redirects to the +latest schema committed into the FFmpeg development source code tree. +</p> +<p>Note that the output issued will be compliant to the +<samp>ffprobe.xsd</samp> schema only when no special global output options +(<samp>unit</samp>, <samp>prefix</samp>, <samp>byte_binary_prefix</samp>, +<samp>sexagesimal</samp> etc.) are specified. +</p> +<p>The description of the accepted options follows. +</p> +<dl compact="compact"> +<dt><span><samp>fully_qualified, q</samp></span></dt> +<dd><p>If set to 1 specify if the output should be fully qualified. Default +value is 0. +This is required for generating an XML file which can be validated +through an XSD file. +</p> +</dd> +<dt><span><samp>xsd_strict, x</samp></span></dt> +<dd><p>If set to 1 perform more checks for ensuring that the output is XSD +compliant. Default value is 0. +This option automatically sets <samp>fully_qualified</samp> to 1. +</p></dd> +</dl> + +<p>For more information about the XML format, see +<a href="https://www.w3.org/XML/">https://www.w3.org/XML/</a>. +</p> +<a name="Timecode"></a> +<h2 class="chapter">5 Timecode<span class="pull-right"><a class="anchor hidden-xs" href="#Timecode" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-Timecode" aria-hidden="true">TOC</a></span></h2> + +<p><code>ffprobe</code> supports Timecode extraction: +</p> +<ul> +<li> MPEG1/2 timecode is extracted from the GOP, and is available in the video +stream details (<samp>-show_streams</samp>, see <var>timecode</var>). + +</li><li> MOV timecode is extracted from tmcd track, so is available in the tmcd +stream metadata (<samp>-show_streams</samp>, see <var>TAG:timecode</var>). + +</li><li> DV, GXF and AVI timecodes are available in format metadata +(<samp>-show_format</samp>, see <var>TAG:timecode</var>). + +</li></ul> + + +<a name="See-Also"></a> +<h2 class="chapter">6 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="ffprobe-all.html">ffprobe-all</a>, +<a href="ffmpeg.html">ffmpeg</a>, <a href="ffplay.html">ffplay</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">7 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="https://www.gnu.org/software/texinfo/"><em>makeinfo</em></a>. + </p> + </div> + </body> +</html> |