diff options
Diffstat (limited to 'src/pulse/volume.h')
| -rw-r--r-- | src/pulse/volume.h | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/src/pulse/volume.h b/src/pulse/volume.h index 5815c906..38da5dfc 100644 --- a/src/pulse/volume.h +++ b/src/pulse/volume.h @@ -154,20 +154,20 @@ char *pa_sw_cvolume_snprint_dB(char *s, size_t l, const pa_cvolume *c); * pa_volume_snprint(). Please note that this value can change with * any release without warning and without being considered API or ABI * breakage. You should not use this definition anywhere where it - * might become part of an ABI. \since 0.9.14 */ + * might become part of an ABI. \since 0.9.15 */ #define PA_VOLUME_SNPRINT_MAX 10 -/** Pretty print a volume \since 0.9.14 */ +/** Pretty print a volume \since 0.9.15 */ char *pa_volume_snprint(char *s, size_t l, pa_volume_t v); /** Maximum length of the strings returned by * pa_volume_snprint_dB(). Please note that this value can change with * any release without warning and without being considered API or ABI * breakage. You should not use this definition anywhere where it - * might become part of an ABI. \since 0.9.14 */ + * might become part of an ABI. \since 0.9.15 */ #define PA_SW_VOLUME_SNPRINT_DB_MAX 10 -/** Pretty print a volume but show dB values. \since 0.9.14 */ +/** Pretty print a volume but show dB values. \since 0.9.15 */ char *pa_sw_volume_snprint_dB(char *s, size_t l, pa_volume_t v); /** Return the average volume of all channels */ @@ -233,6 +233,20 @@ pa_cvolume *pa_cvolume_remap(pa_cvolume *v, pa_channel_map *from, pa_channel_map * the specified sample spec. \since 0.9.13 */ int pa_cvolume_compatible(const pa_cvolume *v, const pa_sample_spec *ss) PA_GCC_PURE; +/** Calculate a 'balance' value for the specified volume with the + * specified channel map. The return value will range from -1.0f + * (left) to +1.0f (right) \since 0.9.15 */ +float pa_cvolume_get_balance(const pa_channel_map *map, const pa_cvolume *v) PA_GCC_PURE; + +/** 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 + * pa_cvolume_get_balance() is not guaranteed to actually return the + * requested balance (e.g. when the input volume was zero anyway for + * all channels)- \since 0.9.15 */ +pa_cvolume* pa_cvolume_set_balance(const pa_channel_map *map, pa_cvolume *v, float new_balance); + PA_C_DECL_END #endif |