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cmdutils: allow precisely specifying a stream for AVOptions.

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This commit is contained in:
Anton Khirnov
2011-07-28 16:47:38 +02:00
parent f60d136637
commit d4863fc1a8
6 changed files with 94 additions and 13 deletions
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16
cmdutils.h
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@ -148,16 +148,28 @@ void show_help_options(const OptionDef *options, const char *msg, int mask, int
void parse_options(int argc, char **argv, const OptionDef *options,
void (* parse_arg_function)(const char*));
/**
* Check if the given stream matches a stream specifier.
*
* @param s Corresponding format context.
* @param st Stream from s to be checked.
* @param spec A stream specifier of the [v|a|s|d]:[<stream index>] form.
*
* @return 1 if the stream matches, 0 if it doesn't, <0 on error
*/
int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec);
/**
* Filter out options for given codec.
*
* Create a new options dictionary containing only the options from
* opts which apply to the codec with ID codec_id.
*
* @param encoder if non-zero the codec is an encoder, otherwise is a decoder
* @param s Corresponding format context.
* @param st A stream from s for which the options should be filtered.
* @return a pointer to the created dictionary
*/
AVDictionary *filter_codec_opts(AVDictionary *opts, enum CodecID codec_id, int encoder);
AVDictionary *filter_codec_opts(AVDictionary *opts, enum CodecID codec_id, AVFormatContext *s, AVStream *st);
/**
* Setup AVCodecContext options for avformat_find_stream_info().