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Cleaned up PulseAudio as we now use FreeSurround

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LAGonauta committed Aug 9, 2017
1 parent df631f0 commit fdfd9d69531fffdeff81ae04a1271d2e938a05bd
Showing with 7 additions and 19 deletions.
  1. +7 −19 Source/Core/AudioCommon/PulseAudioStream.cpp
@@ -22,7 +22,7 @@ PulseAudio::PulseAudio() : m_thread(), m_run_thread()
bool PulseAudio::Init()
{
m_stereo = !SConfig::GetInstance().bDPL2Decoder;
m_channels = m_stereo ? 2 : 5; // will tell PA we use a Stereo or 5.0 channel setup
m_channels = m_stereo ? 2 : 6; // will tell PA we use a Stereo or 5.0 channel setup

NOTICE_LOG(AUDIO, "PulseAudio backend using %d channels", m_channels);

@@ -96,12 +96,13 @@ bool PulseAudio::PulseInit()
m_bytespersample = sizeof(float);

channel_map_p = &channel_map; // explicit channel map:
channel_map.channels = 5;
channel_map.channels = 6;
channel_map.map[0] = PA_CHANNEL_POSITION_FRONT_LEFT;
channel_map.map[1] = PA_CHANNEL_POSITION_FRONT_RIGHT;
channel_map.map[2] = PA_CHANNEL_POSITION_FRONT_CENTER;
channel_map.map[3] = PA_CHANNEL_POSITION_REAR_LEFT;
channel_map.map[4] = PA_CHANNEL_POSITION_REAR_RIGHT;
channel_map.map[3] = PA_CHANNEL_POSITION_LFE;
channel_map.map[4] = PA_CHANNEL_POSITION_REAR_LEFT;
channel_map.map[5] = PA_CHANNEL_POSITION_REAR_RIGHT;
}
ss.channels = m_channels;
ss.rate = m_mixer->GetSampleRate();
@@ -185,22 +186,9 @@ void PulseAudio::WriteCallback(pa_stream* s, size_t length)
}
else
{
if (m_channels == 5) // Extract dpl2/5.0 Surround
if (m_channels == 6) // Extract dpl2/5.1 Surround
{
float floatbuffer_6chan[frames * 6];
m_mixer->MixSurround(floatbuffer_6chan, frames);

// DPL2Decode output: LEFTFRONT, RIGHTFRONT, CENTREFRONT, (sub), LEFTREAR, RIGHTREAR
// Discard the subwoofer channel - DPL2Decode generates a pretty
// good 5.0 but not a good 5.1 output.
const int dpl2_to_5chan[] = {0, 1, 2, 4, 5};
for (int i = 0; i < frames; ++i)
{
for (int j = 0; j < m_channels; ++j)
{
((float*)buffer)[m_channels * i + j] = floatbuffer_6chan[6 * i + dpl2_to_5chan[j]];
}
}
m_mixer->MixSurround((float*)buffer, frames);
}
else
{

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