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implement new API functions pa_channel_map_can_balance(), pa_channel_map_to_name() and pa_channel_map_to_pretty_name()

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This commit is contained in:
Lennart Poettering 2009-01-27 00:46:39 +01:00
parent 24b3a743bd
commit e52c5ea68a
3 changed files with 207 additions and 4 deletions
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21
src/pulse/channelmap.h
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@ -214,7 +214,10 @@ const char* pa_channel_position_to_pretty_string(pa_channel_position_t pos);
/** Make a humand readable string from the specified channel map */
char* pa_channel_map_snprint(char *s, size_t l, const pa_channel_map *map);
/** Parse a channel position list into a channel map structure. */
/** Parse a channel position list or well-known mapping name into a
* channel map structure. This turns the output of
* pa_channel_map_snprint() and pa_channel_map_to_name() back into a
* pa_channel_map */
pa_channel_map *pa_channel_map_parse(pa_channel_map *map, const char *s);
/** Compare two channel maps. Return 1 if both match. */
@ -230,6 +233,22 @@ int pa_channel_map_compatible(const pa_channel_map *map, const pa_sample_spec *s
/** Returns non-zero if every channel defined in b is also defined in a. \since 0.9.15 */
int pa_channel_map_superset(const pa_channel_map *a, const pa_channel_map *b) PA_GCC_PURE;
/** Returns non-zero if it makes sense to apply a volume 'balance'
* with this mapping, i.e. if there are left/right channels
* available. \since 0.9.15 */
int pa_channel_map_can_balance(const pa_channel_map *map) PA_GCC_PURE;
/** Tries to find a well-known channel mapping name for this channel
* mapping. I.e. "stereo", "surround-71" and so on. If the channel
* mapping is unknown NULL will be returned. This name can be parsed
* with pa_channel_map_parse() \since 0.9.15 */
const char* pa_channel_map_to_name(const pa_channel_map *map) PA_GCC_PURE;
/** Tries to find a human readable text label for this channel
mapping. I.e. "Stereo", "Surround 7.1" and so on. If the channel
mapping is unknown NULL will be returned. \since 0.9.15 */
const char* pa_channel_map_to_pretty_name(const pa_channel_map *map) PA_GCC_PURE;
PA_C_DECL_END
#endif