mirror/miniaudio
1
0
Fork 0
mirror of https://github.com/mackron/miniaudio.git synced 2026-04-24 01:04:02 +02:00
Code Issues Packages Projects Releases Wiki Activity

Move ma_copy_and_apply_volume_factor_per_channel_f32() into main file.

Browse Source
This commit is contained in:
David Reid
2021-07-16 19:35:24 +10:00
parent 7d16721626
commit 36d74d0111
2 changed files with 21 additions and 21 deletions
Download Patch File Download Diff File Expand all files Collapse all files
miniaudio.h
+20
View File
@@ -5900,6 +5900,8 @@ MA_API void ma_apply_volume_factor_pcm_frames_s32(ma_int32* pFrames, ma_uint64 f
MA_API void ma_apply_volume_factor_pcm_frames_f32(float* pFrames, ma_uint64 frameCount, ma_uint32 channels, float factor);
MA_API void ma_apply_volume_factor_pcm_frames(void* pFrames, ma_uint64 frameCount, ma_format format, ma_uint32 channels, float factor);
MA_API void ma_copy_and_apply_volume_factor_per_channel_f32(float* pFramesOut, const float* pFramesIn, ma_uint64 frameCount, ma_uint32 channels, float* pChannelGains);
/*
Helper for converting a linear factor to gain in decibels.
@@ -34516,6 +34518,24 @@ MA_API void ma_apply_volume_factor_pcm_frames(void* pPCMFrames, ma_uint64 frameC
}
MA_API void ma_copy_and_apply_volume_factor_per_channel_f32(float* pFramesOut, const float* pFramesIn, ma_uint64 frameCount, ma_uint32 channels, float* pChannelGains)
{
ma_uint64 iFrame;
if (channels == 2) {
/* TODO: Do an optimized implementation for stereo and mono. Can do a SIMD optimized implementation as well. */
}
for (iFrame = 0; iFrame < frameCount; iFrame += 1) {
ma_uint32 iChannel;
for (iChannel = 0; iChannel < channels; iChannel += 1) {
pFramesOut[iFrame * channels + iChannel] = pFramesIn[iFrame * channels + iChannel] * pChannelGains[iChannel];
}
}
}
MA_API float ma_factor_to_gain_db(float factor)
{
return (float)(20*ma_log10f(factor));