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doc: Grammar fixes for strem specifiers section

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Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
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Derek Buitenhuis
2013-03-30 15:26:21 -04:00
parent 0cb2d32453
commit 7d05751581
1 changed files with 12 additions and 11 deletions
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23
doc/avtools-common-opts.texi
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@@ -16,18 +16,18 @@ will set the boolean option with name "foo" to false.
@anchor{Stream specifiers} @anchor{Stream specifiers}
@section Stream specifiers @section Stream specifiers
Some options are applied per-stream, e.g. bitrate or codec. Stream specifiers Some options are applied per-stream, e.g. bitrate or codec. Stream specifiers
are used to precisely specify which stream(s) does a given option belong to. are used to precisely specify which stream(s) a given option belongs to.
A stream specifier is a string generally appended to the option name and 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} option contains separated from it by a colon. E.g. @code{-codec:a:1 ac3} contains the
@code{a:1} stream specifier, which matches the second audio stream. Therefore it @code{a:1} stream specifier, which matches the second audio stream. Therefore, it
would select the ac3 codec for the second audio stream. would select the ac3 codec for the second audio stream.
A stream specifier can match several streams, the option is then applied to all 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} matches all audio of them. E.g. the stream specifier in @code{-b:a 128k} matches all audio
streams. streams.
An empty stream specifier matches all streams, for example @code{-codec copy} An empty stream specifier matches all streams. For example, @code{-codec copy}
or @code{-codec: copy} would copy all the streams without reencoding. or @code{-codec: copy} would copy all the streams without reencoding.
Possible forms of stream specifiers are: Possible forms of stream specifiers are:
@@ -36,15 +36,16 @@ Possible forms of stream specifiers are:
Matches the stream with this index. E.g. @code{-threads:1 4} would set the Matches the stream with this index. E.g. @code{-threads:1 4} would set the
thread count for the second stream to 4. thread count for the second stream to 4.
@item @var{stream_type}[:@var{stream_index}] @item @var{stream_type}[:@var{stream_index}]
@var{stream_type} is one of: 'v' for video, 'a' for audio, 's' for subtitle, @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 'd' for data, and 't' for attachments. If @var{stream_index} is given, then it matches
matches stream number @var{stream_index} of this type. Otherwise matches all stream number @var{stream_index} of this type. Otherwise, it matches all
streams of this type. streams of this type.
@item p:@var{program_id}[:@var{stream_index}] @item p:@var{program_id}[:@var{stream_index}]
If @var{stream_index} is given, then matches stream number @var{stream_index} in If @var{stream_index} is given, then it matches the stream with number @var{stream_index}
program with id @var{program_id}. Otherwise matches all streams in this program. in the program with the id @var{program_id}. Otherwise, it matches all streams in the
program.
@item #@var{stream_id} @item #@var{stream_id}
Matches the stream by format-specific ID. Matches the stream by a format-specific ID.
@end table @end table
@section Generic options @section Generic options