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Merge pull request #3831 from FearlessTobi/add-volume-slider

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citra_qt: Add a volume slider
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James Rowe 2018-07-18 09:56:47 -06:00 • committed by GitHub
commit 2f8c9c8126
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9 changed files with 110 additions and 20 deletions
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10
src/audio_core/dsp_interface.cpp
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@ -7,6 +7,7 @@
#include "audio_core/sink.h"
#include "audio_core/sink_details.h"
#include "common/assert.h"
#include "core/settings.h"
namespace AudioCore {
@ -39,10 +40,17 @@ void DspInterface::EnableStretching(bool enable) {
perform_time_stretching = enable;
}
void DspInterface::OutputFrame(const StereoFrame16& frame) {
void DspInterface::OutputFrame(StereoFrame16& frame) {
if (!sink)
return;
// Implementation of the hardware volume slider with a dynamic range of 60 dB
float volume_scale_factor = std::exp(6.90775 * Settings::values.volume) * 0.001;
for (size_t i = 0; i < frame.size(); i++) {
frame[i][0] = static_cast<s16>(frame[i][0] * volume_scale_factor);
frame[i][1] = static_cast<s16>(frame[i][1] * volume_scale_factor);
}
if (perform_time_stretching) {
time_stretcher.AddSamples(&frame[0][0], frame.size());
std::vector<s16> stretched_samples = time_stretcher.Process(sink->SamplesInQueue());