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lavfi: add internal functions for parsing format arguments

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Signed-off-by: Stefano Sabatini <stefano.sabatini-lala@poste.it>
This commit is contained in:
Mina Nagy Zaki
2011-08-04 12:28:14 +03:00
committed by Stefano Sabatini
parent 3560089e12
commit 3f07d40ea2
2 changed files with 101 additions and 0 deletions
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42
libavfilter/internal.h
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@@ -61,4 +61,46 @@ void ff_avfilter_default_free_buffer(AVFilterBuffer *buf);
/** Tell is a format is contained in the provided list terminated by -1. */
int ff_fmt_is_in(int fmt, const int *fmts);
/* Functions to parse audio format arguments */
/**
* Parse a sample rate.
*
* @param ret unsigned integer pointer to where the value should be written
* @param arg string to parse
* @param log_ctx log context
* @return 0 in case of success, a negative AVERROR code on error
*/
int ff_parse_sample_rate(unsigned *ret, const char *arg, void *log_ctx);
/**
* Parse a sample format name or a corresponding integer representation.
*
* @param ret integer pointer to where the value should be written
* @param arg string to parse
* @param log_ctx log context
* @return 0 in case of success, a negative AVERROR code on error
*/
int ff_parse_sample_format(int *ret, const char *arg, void *log_ctx);
/**
* Parse a channel layout or a corresponding integer representation.
*
* @param ret 64bit integer pointer to where the value should be written.
* @param arg string to parse
* @param log_ctx log context
* @return 0 in case of success, a negative AVERROR code on error
*/
int ff_parse_channel_layout(int64_t *ret, const char *arg, void *log_ctx);
/**
* Parse a packing format or a corresponding integer representation.
*
* @param ret integer pointer to where the value should be written
* @param arg string to parse
* @param log_ctx log context
* @return 0 in case of success, a negative AVERROR code on error
*/
int ff_parse_packing_format(int *ret, const char *arg, void *log_ctx);
#endif /* AVFILTER_INTERNAL_H */