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volume: change pa_volume_t mapping to cubic

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Lennart Poettering 2009-05-22 01:30:54 +02:00
parent e7bca90775
commit 000bdb8d25
2 changed files with 33 additions and 15 deletions
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6
src/pulse/volume.h
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@ -212,10 +212,10 @@ pa_volume_t pa_sw_volume_divide(pa_volume_t a, pa_volume_t b) PA_GCC_CONST;
* *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! */
/** Convert a decibel value to a volume (amplitude, not power). This is only valid for software volumes! */
pa_volume_t pa_sw_volume_from_dB(double f) PA_GCC_CONST;
/** Convert a volume to a decibel value. This is only valid for software volumes! */
/** Convert a volume to a decibel value (amplitude, not power). This is only valid for software volumes! */
double pa_sw_volume_to_dB(pa_volume_t v) PA_GCC_CONST;
/** Convert a linear factor to a volume. This is only valid for software volumes! */
@ -227,7 +227,7 @@ double pa_sw_volume_to_linear(pa_volume_t v) PA_GCC_CONST;
#ifdef INFINITY
#define PA_DECIBEL_MININFTY ((double) -INFINITY)
#else
/** This value is used as minus infinity when using pa_volume_{to,from}_dB(). */
/** This floor value is used as minus infinity when using pa_volume_{to,from}_dB(). */
#define PA_DECIBEL_MININFTY ((double) -200.0)
#endif