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Updates to support pumped audio voices (ALSA only for now)

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This commit is contained in:
Jack Andersen
2016-03-07 21:09:58 -10:00
parent b180b5535b
commit e1964f57a9
8 changed files with 258 additions and 115 deletions
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29
lib/audiodev/AudioMatrix.cpp
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@@ -9,16 +9,16 @@ void AudioMatrixMono::setDefaultMatrixCoefficients()
memset(m_coefs, 0, sizeof(m_coefs));
switch (m_setOut)
{
case AudioChannelSet::Mono:
case AudioChannelSet::Stereo:
case AudioChannelSet::Quad:
m_coefs[AudioChannel::FrontLeft] = 1.0;
m_coefs[AudioChannel::FrontRight] = 1.0;
m_coefs[int(AudioChannel::FrontLeft)] = 1.0;
m_coefs[int(AudioChannel::FrontRight)] = 1.0;
break;
case AudioChannelSet::Surround51:
case AudioChannelSet::Surround71:
m_coefs[AudioChannel::FrontCenter] = 1.0;
m_coefs[int(AudioChannel::FrontCenter)] = 1.0;
break;
default: break;
}
}
@@ -34,7 +34,7 @@ void AudioMatrixMono::bufferMonoSampleData(IAudioVoice& voice, const int16_t* da
if (ch == AudioChannel::Unknown)
m_interleaveBuf.push_back(0);
else
m_interleaveBuf.push_back(data[0] * m_coefs[ch]);
m_interleaveBuf.push_back(data[0] * m_coefs[int(ch)]);
}
voice.bufferSampleData(m_interleaveBuf.data(), samples);
}
@@ -44,22 +44,17 @@ void AudioMatrixStereo::setDefaultMatrixCoefficients()
memset(m_coefs, 0, sizeof(m_coefs));
switch (m_setOut)
{
case AudioChannelSet::Mono:
m_coefs[AudioChannel::FrontLeft][0] = 0.5;
m_coefs[AudioChannel::FrontLeft][1] = 0.5;
m_coefs[AudioChannel::FrontRight][0] = 0.5;
m_coefs[AudioChannel::FrontRight][1] = 0.5;
break;
case AudioChannelSet::Stereo:
case AudioChannelSet::Quad:
m_coefs[AudioChannel::FrontLeft][0] = 1.0;
m_coefs[AudioChannel::FrontRight][1] = 1.0;
m_coefs[int(AudioChannel::FrontLeft)][0] = 1.0;
m_coefs[int(AudioChannel::FrontRight)][1] = 1.0;
break;
case AudioChannelSet::Surround51:
case AudioChannelSet::Surround71:
m_coefs[AudioChannel::FrontLeft][0] = 1.0;
m_coefs[AudioChannel::FrontRight][1] = 1.0;
m_coefs[int(AudioChannel::FrontLeft)][0] = 1.0;
m_coefs[int(AudioChannel::FrontRight)][1] = 1.0;
break;
default: break;
}
}
@@ -75,8 +70,8 @@ void AudioMatrixStereo::bufferStereoSampleData(IAudioVoice& voice, const int16_t
if (ch == AudioChannel::Unknown)
m_interleaveBuf.push_back(0);
else
m_interleaveBuf.push_back(data[0] * m_coefs[ch][0] +
data[1] * m_coefs[ch][1]);
m_interleaveBuf.push_back(data[0] * m_coefs[int(ch)][0] +
data[1] * m_coefs[int(ch)][1]);
}
voice.bufferSampleData(m_interleaveBuf.data(), frames);
}