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cmdutils: allow to specify a stream by its ID.

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The stream can be specified as "#129" or "#0x81".
It is especially useful for VOBs dumped from a DVD,
where the language-id mapping is available externally
and the probing can find the streams in a random order.
This commit is contained in:
Nicolas George 2012-05-20 12:30:16 +02:00
parent bf3dce6b59
commit ea07063fd8
2 changed files with 8 additions and 0 deletions
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6
cmdutils.c
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@ -1109,6 +1109,12 @@ int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec)
return 1;
}
return 0;
} else if (*spec == '#') {
int sid;
char *endptr;
sid = strtol(spec + 1, &endptr, 0);
if (!*endptr)
return st->id == sid;
} else if (!*spec) /* empty specifier, matches everything */
return 1;

2
doc/avtools-common-opts.texi
View File

@ -41,6 +41,8 @@ streams of this type.
@item p:@var{program_id}[:@var{stream_index}]
If @var{stream_index} is given, then matches stream number @var{stream_index} in
program with id @var{program_id}. Otherwise matches all streams in this program.
@item #@var{stream_id}
Matches the stream by format-specific ID.
@end table
@section Generic options