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| author | Max Kellermann <max@duempel.org> | 2011-10-20 02:33:51 +0200 |
|---|---|---|
| committer | Max Kellermann <max@duempel.org> | 2011-10-20 02:33:51 +0200 |
| commit | bfef0fbff34e80a86d7b740eace597efe52136e1 (patch) | |
| tree | e962439504e4bd9874be40b243aab859066c960f /src/pcm_volume.c | |
| parent | 545685bc3209d9cfdf6c4b9aeee4715edd453dc1 (diff) | |
| download | mpd-bfef0fbff34e80a86d7b740eace597efe52136e1.tar.gz mpd-bfef0fbff34e80a86d7b740eace597efe52136e1.tar.xz mpd-bfef0fbff34e80a86d7b740eace597efe52136e1.zip | |
pcm_volume: implement float samples
Diffstat (limited to 'src/pcm_volume.c')
| -rw-r--r-- | src/pcm_volume.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/src/pcm_volume.c b/src/pcm_volume.c index f732060b2..de4bda6c9 100644 --- a/src/pcm_volume.c +++ b/src/pcm_volume.c @@ -132,6 +132,16 @@ pcm_volume_change_32(int32_t *buffer, const int32_t *end, int volume) } } +static void +pcm_volume_change_float(float *buffer, const float *end, float volume) +{ + while (buffer < end) { + float sample = *buffer; + sample *= volume; + *buffer++ = sample; + } +} + bool pcm_volume(void *buffer, size_t length, enum sample_format format, @@ -169,8 +179,9 @@ pcm_volume(void *buffer, size_t length, return true; case SAMPLE_FORMAT_FLOAT: - /* XXX */ - return false; + pcm_volume_change_float(buffer, end, + pcm_volume_to_float(volume)); + return true; } /* unreachable */ |