@chapter Stream selection
@c man begin STREAM SELECTION
-By default av tries to pick the "best" stream of each type present in input
+By default avconv tries to pick the "best" stream of each type present in input
files and add them to each output file. For video, this means the highest
resolution, for audio the highest channel count. For subtitle it's simply the
first subtitle stream.
If the year-month-day part is not specified it takes the current
year-month-day.
-@item -metadata @var{key}=@var{value}
+@item -metadata[:metadata_specifier] @var{key}=@var{value}
Set a metadata key/value pair.
+An optional @var{metadata_specifier} may be given to set metadata
+on streams or chapters. See @code{-map_metadata} documentation for
+details.
+
+This option overrides metadata set with @code{-map_metadata}. It is
+also possible to delete metadata by using an empty value.
+
For example, for setting the title in the output file:
@example
avconv -i in.avi -metadata title="my title" out.flv
@end example
+To set the language of the second stream:
+@example
+avconv -i INPUT -metadata:s:1 language=eng OUTPUT
+@end example
+
@item -v @var{number}
Set the logging verbosity level.
@end example
@item -dframes @var{number}
-Set the number of data frames to record.
+Set the number of data frames to record. This is an alias for @code{-frames:d}.
+
+@item -frames[:stream_specifier] @var{framecount}
+Stop writing to the stream after @var{framecount} frames.
-@item -slang @var{code}
-Set the ISO 639 language code (3 letters) of the current subtitle stream.
+@item -q @var{q}
+@item -qscale @var{q}
+Use fixed quality scale (VBR). The meaning of @var{q} is
+codec-dependent.
@end table
@table @option
@item -vframes @var{number}
-Set the number of video frames to record.
+Set the number of video frames to record. This is an alias for @code{-frames:v}.
@item -r @var{fps}
Set frame rate (Hz value, fraction or abbreviation), (default = 25).
@item -s @var{size}
numerator and denominator of the aspect ratio. For example "4:3",
"16:9", "1.3333", and "1.7777" are valid argument values.
-@item -croptop @var{size}
-@item -cropbottom @var{size}
-@item -cropleft @var{size}
-@item -cropright @var{size}
-All the crop options have been removed. Use -vf
-crop=width:height:x:y instead.
-
-@item -padtop @var{size}
-@item -padbottom @var{size}
-@item -padleft @var{size}
-@item -padright @var{size}
-@item -padcolor @var{hex_color}
-All the pad options have been removed. Use -vf
-pad=width:height:x:y:color instead.
@item -vn
Disable video recording.
@item -bt @var{tolerance}
@file{PREFIX-N.log}, where N is a number specific to the output
stream.
-@item -vlang @var{code}
-Set the ISO 639 language code (3 letters) of the current video stream.
-
@item -vf @var{filter_graph}
@var{filter_graph} is a description of the filter graph to apply to
the input video.
Set the group of pictures size.
@item -vdt @var{n}
Discard threshold.
-@item -qscale @var{q}
-Use fixed video quantizer scale (VBR).
@item -qmin @var{q}
minimum video quantizer scale (VBR)
@item -qmax @var{q}
@item -dc @var{precision}
Intra_dc_precision.
@item -vtag @var{fourcc/tag}
-Force video tag/fourcc.
+Force video tag/fourcc. This is an alias for @code{-tag:v}.
@item -qphist
Show QP histogram.
-@item -vbsf @var{bitstream_filter}
-Bitstream filters available are "dump_extra", "remove_extra", "noise", "h264_mp4toannexb", "imxdump", "mjpegadump", "mjpeg2jpeg".
-@example
-avconv -i h264.mp4 -c:v copy -vbsf h264_mp4toannexb -an out.h264
-@end example
@item -force_key_frames @var{time}[,@var{time}...]
Force key frames at the specified timestamps, more precisely at the first
frames after each specified time.
@table @option
@item -aframes @var{number}
-Set the number of audio frames to record.
+Set the number of audio frames to record. This is an alias for @code{-frames:a}.
@item -ar @var{freq}
Set the audio sampling frequency. For output streams it is set by
default to the frequency of the corresponding input stream. For input
streams this option only makes sense for audio grabbing devices and raw
demuxers and is mapped to the corresponding demuxer options.
@item -aq @var{q}
-Set the audio quality (codec-specific, VBR).
+Set the audio quality (codec-specific, VBR). This is an alias for -q:a.
@item -ac @var{channels}
Set the number of audio channels. For output streams it is set by
default to the number of input audio channels. For input streams
Disable audio recording.
@item -acodec @var{codec}
Set the audio codec. This is an alias for @code{-codec:a}.
-@item -alang @var{code}
-Set the ISO 639 language code (3 letters) of the current audio stream.
+@item -sample_fmt[:@var{stream_specifier}] @var{sample_fmt}
+Set the audio sample format. Use @code{-help sample_fmts} to get a list
+of supported sample formats.
@end table
@section Advanced Audio options:
@table @option
@item -atag @var{fourcc/tag}
-Force audio tag/fourcc.
+Force audio tag/fourcc. This is an alias for @code{-tag:a}.
@item -audio_service_type @var{type}
Set the type of service that the audio stream contains.
@table @option
@item ka
Karaoke
@end table
-@item -absf @var{bitstream_filter}
-Bitstream filters available are "dump_extra", "remove_extra", "noise", "mp3comp", "mp3decomp".
@end table
@section Subtitle options:
@table @option
@item -scodec @var{codec}
Set the subtitle codec. This is an alias for @code{-codec:s}.
-@item -slang @var{code}
-Set the ISO 639 language code (3 letters) of the current subtitle stream.
@item -sn
Disable subtitle recording.
-@item -sbsf @var{bitstream_filter}
-Bitstream filters available are "mov2textsub", "text2movsub".
-@example
-avconv -i file.mov -an -vn -sbsf mov2textsub -c:s copy -f rawvideo sub.txt
-@end example
@end table
@section Audio/Video grab options
For example, to map ALL streams from the first input file to output
@example
-av -i INPUT -map 0 output
+avconv -i INPUT -map 0 output
@end example
For example, if you have two audio streams in the first input file,
@example
avconv -i infile -streamid 0:33 -streamid 1:36 out.ts
@end example
+
+@item -bsf[:@var{stream_specifier}] @var{bitstream_filters}
+Set bitstream filters for matching streams. @var{bistream_filters} is
+a comma-separated list of bitstream filters. Use the @code{-bsfs} option
+to get the list of bitstream filters.
+@example
+avconv -i h264.mp4 -c:v copy -vbsf h264_mp4toannexb -an out.h264
+@end example
+@example
+avconv -i file.mov -an -vn -sbsf mov2textsub -c:s copy -f rawvideo sub.txt
+@end example
+
+@item -tag[:@var{stream_specifier}] @var{codec_tag}
+Force a tag/fourcc for matching streams.
@end table
@c man end OPTIONS
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