diff options
Diffstat (limited to 'src/pulse/volume.h')
| -rw-r--r-- | src/pulse/volume.h | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/src/pulse/volume.h b/src/pulse/volume.h index bfd8ca5b..75051af5 100644 --- a/src/pulse/volume.h +++ b/src/pulse/volume.h @@ -168,12 +168,25 @@ int pa_cvolume_channels_equal_to(const pa_cvolume *a, pa_volume_t v) PA_GCC_PURE /** Return 1 if the specified volume has all channels on normal level */ #define pa_cvolume_is_norm(a) pa_cvolume_channels_equal_to((a), PA_VOLUME_NORM) -/** Multiply two volumes specifications, return the result. This uses PA_VOLUME_NORM as neutral element of multiplication. This is only valid for software volumes! */ +/** Multiply two volume specifications, return the result. This uses + * PA_VOLUME_NORM as neutral element of multiplication. This is only + * valid for software volumes! */ pa_volume_t pa_sw_volume_multiply(pa_volume_t a, pa_volume_t b) PA_GCC_CONST; -/** Multiply to per-channel volumes and return the result in *dest. This is only valid for software volumes! */ +/** Multiply two per-channel volumes and return the result in + * *dest. This is only valid for software volumes! */ pa_cvolume *pa_sw_cvolume_multiply(pa_cvolume *dest, const pa_cvolume *a, const pa_cvolume *b); +/** Divide two volume specifications, return the result. This uses + * PA_VOLUME_NORM as neutral element of division. This is only valid + * for software volumes! If a division by zero is tried the result + * will be 0. \since 0.9.13 */ +pa_volume_t pa_sw_volume_divide(pa_volume_t a, pa_volume_t b) PA_GCC_CONST; + +/** Multiply to per-channel volumes and return the result in + * *dest. This is only valid for software volumes! \since 0.9.13 */ +pa_cvolume *pa_sw_cvolume_divide(pa_cvolume *dest, const pa_cvolume *a, const pa_cvolume *b); + /** Convert a decibel value to a volume. This is only valid for software volumes! */ pa_volume_t pa_sw_volume_from_dB(double f) PA_GCC_CONST; |