SND_VOL_CALC_SAMPLE
#define FEEDVOLUME_CALC8(s, v) (SND_VOL_CALC_SAMPLE((intpcm_t) \
#define FEEDVOLUME_CALC16(s, v) SND_VOL_CALC_SAMPLE((intpcm_t)(s), v)
#define FEEDVOLUME_CALC24(s, v) SND_VOL_CALC_SAMPLE((intpcm64_t)(s), v)
#define FEEDVOLUME_CALC32(s, v) SND_VOL_CALC_SAMPLE((intpcm64_t)(s), v)