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add new API pa_channel_map_init_extend() to synthesize a channel map if noone is known

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This commit is contained in:
Lennart Poettering 2008-06-18 23:42:14 +02:00
parent b95cf52030
commit 132e73b2ef
4 changed files with 43 additions and 3 deletions
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12
src/pulse/channelmap.h
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@ -166,10 +166,18 @@ pa_channel_map* pa_channel_map_init_mono(pa_channel_map *m);
/** Initialize the specified channel map for stereophonic audio and return a pointer to it */
pa_channel_map* pa_channel_map_init_stereo(pa_channel_map *m);
/** Initialize the specified channel map for the specified number
* of channels using default labels and return a pointer to it. */
/** Initialize the specified channel map for the specified number of
* channels using default labels and return a pointer to it. This call
* will fail (return NULL) if there is no default channel map known for this
* specific number of channels and mapping. */
pa_channel_map* pa_channel_map_init_auto(pa_channel_map *m, unsigned channels, pa_channel_map_def_t def);
/** Similar to pa_channel_map_init_auto() but instead of failing if no
* default mapping is known with the specified parameters it will
* synthesize a mapping based on a known mapping with fewer channels
* and fill up the rest with AUX0...AUX31 channels \since 0.9.11 */
pa_channel_map* pa_channel_map_init_extend(pa_channel_map *m, unsigned channels, pa_channel_map_def_t def);
/** Return a text label for the specified channel position */
const char* pa_channel_position_to_string(pa_channel_position_t pos) PA_GCC_PURE;