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Fix a bug with the application of output bus volume.

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David Reid
2021-01-13 22:20:38 +10:00
parent fa416d323b
commit 7a8ff122bc
1 changed files with 11 additions and 0 deletions
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research/miniaudio_engine.h
+11
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@@ -2655,10 +2655,21 @@ static ma_result ma_node_input_bus_read_pcm_frames(ma_node* pInputNode, ma_node_
if (pOutputBus == pFirst) {
/* Fast path. First attachment. We just read straight into the output buffer (no mixing required). */
result = ma_node_read_pcm_frames(pOutputBus->pNode, pOutputBus->outputBusIndex, pRunningFramesOut, framesToRead, &framesJustRead, globalTime + framesProcessed);
if (result == MA_SUCCESS || result == MA_AT_END) {
/* Apply volume, if necessary. */
if (volume != 1) {
ma_apply_volume_factor_f32(pRunningFramesOut, framesJustRead * inputChannels, volume);
}
}
} else {
/* Slow path. Not the first attachment. Mixing required. */
result = ma_node_read_pcm_frames(pOutputBus->pNode, pOutputBus->outputBusIndex, temp, framesToRead, &framesJustRead, globalTime + framesProcessed);
if (result == MA_SUCCESS || result == MA_AT_END) {
/* Apply volume, if necessary. */
if (volume != 1) {
ma_apply_volume_factor_f32(temp, framesJustRead * inputChannels, volume);
}
ma_mix_pcm_frames_f32(pRunningFramesOut, temp, framesJustRead, inputChannels, /*volume*/1);
}
}