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 max_probe_packets @var{integer} (@emph{input})
+Set the maximum number of buffered packets when probing a codec.
+Default is 2500 packets.
+
@item packetsize @var{integer} (@emph{output})
Set packet size.
-@item fflags @var{flags} (@emph{input/output})
-Set format flags.
+@item fflags @var{flags}
+Set format flags. Some are implemented for a limited number of formats.
-Possible values:
+Possible values for input files:
@table @samp
-@item ignidx
-Ignore index.
+@item discardcorrupt
+Discard corrupted packets.
@item fastseek
Enable fast, but inaccurate seeks for some formats.
@item genpts
-Generate PTS.
+Generate missing PTS if DTS is present.
+@item igndts
+Ignore DTS if PTS is set. Inert when nofillin is set.
+@item ignidx
+Ignore index.
+@item nobuffer
+Reduce the latency introduced by buffering during initial input streams analysis.
@item nofillin
-Do not fill in missing values that can be exactly calculated.
+Do not fill in missing values in packet fields 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
+Try to interleave output packets by DTS. At present, available only for AVIs with an index.
+@end table
+
+Possible values for output files:
+@table @samp
+@item autobsf
+Automatically apply bitstream filters as required by the output format. Enabled by default.
@item bitexact
Only write platform-, build- and time-independent data.
This ensures that file and data checksums are reproducible and match between
platforms. Its primary use is for regression testing.
+@item flush_packets
+Write out packets immediately.
+@item latm (@emph{deprecated},@emph{inert})
@item shortest
Stop muxing at the end of the shortest stream.
It may be needed to increase max_interleave_delta to avoid flushing the longer
@item max_interleave_delta @var{integer} (@emph{output})
Set maximum buffering duration for interleaving. The duration is
-expressed in microseconds, and defaults to 1000000 (1 second).
+expressed in microseconds, and defaults to 10000000 (10 seconds).
To ensure all the streams are interleaved correctly, libavformat will
wait until it has at least one packet for each stream before actually
@item dump_separator @var{string} (@emph{input})
Separator used to separate the fields printed on the command line about the
Stream parameters.
-For example to separate the fields with newlines and indention:
+For example, to separate the fields with newlines and indentation:
@example
ffprobe -dump_separator "
" -i ~/videos/matrixbench_mpeg2.mpg
@item max_streams @var{integer} (@emph{input})
Specifies the maximum number of streams. This can be used to reject files that
would require too many resources due to a large number of streams.
+
+@item skip_estimate_duration_from_pts @var{bool} (@emph{input})
+Skip estimation of input duration when calculated using PTS.
+At present, applicable for MPEG-PS and MPEG-TS.
+
+@item strict, f_strict @var{integer} (@emph{input/output})
+Specify how strictly to follow the standards. @code{f_strict} is deprecated and
+should be used only via the @command{ffmpeg} tool.
+
+Possible values:
+@table @samp
+@item very
+strictly conform to an older more strict version of the spec or reference software
+@item strict
+strictly conform to all the things in the spec no matter what consequences
+@item normal
+
+@item unofficial
+allow unofficial extensions
+@item experimental
+allow non standardized experimental things, experimental
+(unfinished/work in progress/not well tested) decoders and encoders.
+Note: experimental decoders can pose a security risk, do not use this for
+decoding untrusted input.
+@end table
+
@end table
@c man end FORMAT OPTIONS
Format stream specifiers allow selection of one or more streams that
match specific properties.
-Possible forms of stream specifiers are:
-@table @option
-@item @var{stream_index}
-Matches the stream with this index.
-
-@item @var{stream_type}[:@var{stream_index}]
-@var{stream_type} is one of following: 'v' for video, 'a' for audio,
-'s' for subtitle, 'd' for data, and 't' for attachments. If
-@var{stream_index} is given, then it matches the stream number
-@var{stream_index} of this type. Otherwise, it matches all streams of
-this type.
-
-@item p:@var{program_id}[:@var{stream_index}]
-If @var{stream_index} is given, then it matches the stream with number
-@var{stream_index} in the program with the id
-@var{program_id}. Otherwise, it matches all streams in the program.
-
-@item #@var{stream_id}
-Matches the stream by a format-specific ID.
-@end table
-
The exact semantics of stream specifiers is defined by the
@code{avformat_match_stream_specifier()} function declared in the
-@file{libavformat/avformat.h} header.
+@file{libavformat/avformat.h} header and documented in the
+@ref{Stream specifiers,,Stream specifiers section in the ffmpeg(1) manual,ffmpeg}.
@ifclear config-writeonly
@include demuxers.texi
projects / ffmpeg / blobdiff