\input texinfo @c -*- texinfo -*-
 
 @settitle FFmpeg Formats Documentation
 @titlepage
 @center @titlefont{FFmpeg Formats Documentation}
 @end titlepage
 
 @top
 
 @contents
 
 @chapter Description
 @c man begin DESCRIPTION
 
 This document describes the supported formats (muxers and demuxers)
 provided by the libavformat library.
 
 @c man end DESCRIPTION
 
 @chapter Format Options
 @c man begin FORMAT OPTIONS
 
 The libavformat library provides some generic global options, which
 can be set on all the muxers and demuxers. In addition each muxer or
 demuxer may support so-called private options, which are specific for
 that component.
 
 Options may be set by specifying -@var{option} @var{value} in the
 FFmpeg tools, or by setting the value explicitly in the
 @code{AVFormatContext} options or using the @file{libavutil/opt.h} API
 for programmatic use.
 
 The list of supported options follows:
 
 @table @option
 @item avioflags @var{flags} (@emph{input/output})
 Possible values:
 @table @samp
 @item direct
 Reduce buffering.
 @end table
 
 @item probesize @var{integer} (@emph{input})

 Set probing size in bytes, i.e. the size of the data to analyze to get
 stream information. A higher value will allow to detect more
 information in case it is dispersed into the stream, but will increase
 latency. Must be an integer not lesser than 32. It is 5000000 by default.

 
 @item packetsize @var{integer} (@emph{output})
 Set packet size.
 
 @item fflags @var{flags} (@emph{input/output})
 Set format flags.
 
 Possible values:
 @table @samp
 @item ignidx
 Ignore index.
 @item genpts
 Generate PTS.
 @item nofillin
 Do not fill in missing values that can be exactly calculated.
 @item noparse
 Disable AVParsers, this needs @code{+nofillin} too.
 @item igndts
 Ignore DTS.
 @item discardcorrupt
 Discard corrupted frames.
 @item sortdts
 Try to interleave output packets by DTS.
 @item keepside
 Do not merge side data.
 @item latm
 Enable RTP MP4A-LATM payload.
 @item nobuffer
 Reduce the latency introduced by optional buffering
 @end table
 

 @item seek2any @var{integer} (@emph{input})
 Forces seeking to enable seek to any mode if set to 1. Default is 0.
 

 @item analyzeduration @var{integer} (@emph{input})

 Specify how many microseconds are analyzed to probe the input. A
 higher value will allow to detect more accurate information, but will
 increase latency. It defaults to 5,000,000 microseconds = 5 seconds.

 
 @item cryptokey @var{hexadecimal string} (@emph{input})
 Set decryption key.
 
 @item indexmem @var{integer} (@emph{input})
 Set max memory used for timestamp index (per stream).
 
 @item rtbufsize @var{integer} (@emph{input})
 Set max memory used for buffering real-time frames.
 
 @item fdebug @var{flags} (@emph{input/output})
 Print specific debug info.
 
 Possible values:
 @table @samp
 @item ts
 @end table
 
 @item max_delay @var{integer} (@emph{input/output})
 Set maximum muxing or demuxing delay in microseconds.
 
 @item fpsprobesize @var{integer} (@emph{input})
 Set number of frames used to probe fps.
 
 @item audio_preload @var{integer} (@emph{output})
 Set microseconds by which audio packets should be interleaved earlier.
 
 @item chunk_duration @var{integer} (@emph{output})
 Set microseconds for each chunk.
 
 @item chunk_size @var{integer} (@emph{output})
 Set size in bytes for each chunk.
 
 @item err_detect, f_err_detect @var{flags} (@emph{input})
 Set error detection flags. @code{f_err_detect} is deprecated and
 should be used only via the @command{ffmpeg} tool.
 
 Possible values:
 @table @samp
 @item crccheck
 Verify embedded CRCs.
 @item bitstream
 Detect bitstream specification deviations.
 @item buffer
 Detect improper bitstream length.
 @item explode
 Abort decoding on minor error detection.
 @item careful
 Consider things that violate the spec and have not been seen in the
 wild as errors.
 @item compliant
 Consider all spec non compliancies as errors.
 @item aggressive
 Consider things that a sane encoder should not do as an error.
 @end table
 
 @item use_wallclock_as_timestamps @var{integer} (@emph{input})
 Use wallclock as timestamps.
 
 @item avoid_negative_ts @var{integer} (@emph{output})

 Shift timestamps to make them positive. 1 enables, 0 disables, default
 of -1 enables when required by target format.

 
 @item skip_initial_bytes @var{integer} (@emph{input})
 Set number initial bytes to skip. Default is 0.
 
 @item correct_ts_overflow @var{integer} (@emph{input})
 Correct single timestamp overflows if set to 1. Default is 1.

 @end table
 
 @c man end FORMAT OPTIONS
 
 @include demuxers.texi
 @include muxers.texi

 @include metadata.texi

 @chapter See Also
 
 @ifhtml
 @url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
 @url{libavformat.html,libavformat}
 @end ifhtml
 
 @ifnothtml
 ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), libavformat(3)
 @end ifnothtml
 

 @include authors.texi
 

 @ignore
 
 @setfilename ffmpeg-formats
 @settitle FFmpeg formats
 
 @end ignore
 
 @bye