diff options
Diffstat (limited to 'src/pcm_utils.h')
| -rw-r--r-- | src/pcm_utils.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/pcm_utils.h b/src/pcm_utils.h index 93f414231..8b2259655 100644 --- a/src/pcm_utils.h +++ b/src/pcm_utils.h @@ -38,4 +38,18 @@ pcm_range(int32_t sample, unsigned bits) return sample; } +/** + * Check if the value is within the range of the provided bit size, + * and caps it if necessary. + */ +static inline int64_t +pcm_range_64(int64_t sample, unsigned bits) +{ + if (G_UNLIKELY(sample < ((int64_t)-1 << (bits - 1)))) + return (int64_t)-1 << (bits - 1); + if (G_UNLIKELY(sample >= ((int64_t)1 << (bits - 1)))) + return ((int64_t)1 << (bits - 1)) - 1; + return sample; +} + #endif |