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Diffstat (limited to 'doc')
-rw-r--r-- | doc/filters.texi | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index 6b0d6ac5dc..be682e669b 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -239,6 +239,38 @@ equivalent to: abuffer=44100:1:3:1 @end example +@section amovie + +Read an audio stream from a movie container. + +It accepts the syntax: @var{movie_name}[:@var{options}] where +@var{movie_name} is the name of the resource to read (not necessarily +a file but also a device or a stream accessed through some protocol), +and @var{options} is an optional sequence of @var{key}=@var{value} +pairs, separated by ":". + +The description of the accepted options follows. + +@table @option + +@item format_name, f +Specify the format assumed for the movie to read, and can be either +the name of a container or an input device. If not specified the +format is guessed from @var{movie_name} or by probing. + +@item seek_point, sp +Specify the seek point in seconds, the frames will be output +starting from this seek point, the parameter is evaluated with +@code{av_strtod} so the numerical value may be suffixed by an IS +postfix. Default value is "0". + +@item stream_index, si +Specify the index of the audio stream to read. If the value is -1, +the best suited audio stream will be automatically selected. Default +value is "-1". + +@end table + @section anullsrc Null audio source, never return audio frames. It is mainly useful as a |