diff options
Diffstat (limited to 'src/pulse/volume.h')
| -rw-r--r-- | src/pulse/volume.h | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/src/pulse/volume.h b/src/pulse/volume.h index 9a883ca7..8eef467f 100644 --- a/src/pulse/volume.h +++ b/src/pulse/volume.h @@ -242,12 +242,27 @@ float pa_cvolume_get_balance(const pa_cvolume *v, const pa_channel_map *map) PA_ /** Adjust the 'balance' value for the specified volume with the * specified channel map. v will be modified in place and * returned. The balance is a value between -1.0f and +1.0f. This - * operation might not be reversable! Also, after this call + * operation might not be reversible! Also, after this call * pa_cvolume_get_balance() is not guaranteed to actually return the - * requested balance (e.g. when the input volume was zero anyway for + * requested balance value (e.g. when the input volume was zero anyway for * all channels) \since 0.9.15 */ pa_cvolume* pa_cvolume_set_balance(pa_cvolume *v, const pa_channel_map *map, float new_balance); +/** Calculate a 'fade' value (i.e. 'balance' between front and rear) + * for the specified volume with the specified channel map. The return + * value will range from -1.0f (rear) to +1.0f (left) \since + * 0.9.15 */ +float pa_cvolume_get_fade(const pa_cvolume *v, const pa_channel_map *map) PA_GCC_PURE; + +/** Adjust the 'fade' value (i.e. 'balance' between front and rear) + * for the specified volume with the specified channel map. v will be + * modified in place and returned. The balance is a value between + * -1.0f and +1.0f. This operation might not be reversible! Also, + * after this call pa_cvolume_get_fade() is not guaranteed to + * actually return the requested fade value (e.g. when the input volume + * was zero anyway for all channels) \since 0.9.15 */ +pa_cvolume* pa_cvolume_set_fade(pa_cvolume *v, const pa_channel_map *map, float new_fade); + /** Scale the passed pa_cvolume structure so that the maximum volume * of all channels equals max. The proportions between the channel * volumes are kept. \since 0.9.15 */ |