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added balance control to output

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@4290 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
beveloper 2003-08-17 00:34:48 +00:00
parent 9361f4d2b5
commit 5fa60b3b64
1 changed files with 102 additions and 28 deletions
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130
src/add-ons/media/media-add-ons/mixer/AudioMixer.cpp
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@ -374,6 +374,11 @@ AudioMixer::FormatChanged(const media_source &producer, const media_destination
if (consumer.port != ControlPort() || consumer.id == 0)
return B_MEDIA_BAD_DESTINATION;
if (fCore->Settings()->RefuseInputFormatChange()) {
TRACE("AudioMixer::FormatChanged: input format change refused\n");
return B_ERROR;
}
// XXX we should not apply the format change at this point
@ -437,12 +442,15 @@ AudioMixer::FormatChangeRequested(const media_source &source, const media_destin
// another format, we need to check if the format is acceptable and
// remove any wildcards before returning OK.
return B_ERROR;
fCore->Lock();
TRACE("AudioMixer::FormatChangeRequested\n");
if (fCore->Settings()->RefuseOutputFormatChange()) {
TRACE("AudioMixer::FormatChangeRequested: output format change refused\n");
return B_ERROR;
}
fCore->Lock();
MixerOutput *output = fCore->Output();
if (!output) {
ERROR("AudioMixer::FormatChangeRequested: no output\n");
@ -1011,13 +1019,14 @@ AudioMixer::Gain_to_dB(float gain)
#define PARAM_DST_STR(id, chan) (((id) << 16) | ((chan) << 10) | 0x6)
#define PARAM_MUTE(id) (((id) << 16) | 0x7)
#define PARAM_GAIN(id) (((id) << 16) | 0x8)
#define PARAM_STR1(id) (((id) << 16) | 0x9)
#define PARAM_STR2(id) (((id) << 16) | 0xa)
#define PARAM_STR3(id) (((id) << 16) | 0xb)
#define PARAM_STR4(id) (((id) << 16) | 0xc)
#define PARAM_STR5(id) (((id) << 16) | 0xd)
#define PARAM_STR6(id) (((id) << 16) | 0xe)
#define PARAM_STR7(id) (((id) << 16) | 0xf)
#define PARAM_BALANCE(id) (((id) << 16) | 0x9)
#define PARAM_STR1(id) (((id) << 16) | ((1) << 10) | 0xa)
#define PARAM_STR2(id) (((id) << 16) | ((2) << 10) | 0xa)
#define PARAM_STR3(id) (((id) << 16) | ((3) << 10) | 0xa)
#define PARAM_STR4(id) (((id) << 16) | ((4) << 10) | 0xa)
#define PARAM_STR5(id) (((id) << 16) | ((5) << 10) | 0xa)
#define PARAM_STR6(id) (((id) << 16) | ((6) << 10) | 0xa)
#define PARAM_STR7(id) (((id) << 16) | ((7) << 10) | 0xa)
#define PARAM(id) ((id) >> 16)
#define ETC(id) ((id) >> 16)
@ -1030,6 +1039,7 @@ AudioMixer::Gain_to_dB(float gain)
#define PARAM_IS_ETC(id) (((id) & 0xf) == 0x4)
#define PARAM_IS_MUTE(id) (((id) & 0xf) == 0x7)
#define PARAM_IS_GAIN(id) (((id) & 0xf) == 0x8)
#define PARAM_IS_BALANCE(id) (((id) & 0xf) == 0x9)
status_t
@ -1087,7 +1097,7 @@ AudioMixer::GetParameterValue(int32 id, bigtime_t *last_change,
}
} else if (param == 0) {
MixerOutput *output = fCore->Output();
if (!output || (!PARAM_IS_MUTE(id) && !PARAM_IS_GAIN(id) && !PARAM_IS_SRC_ENABLE(id) && !PARAM_IS_SRC_GAIN(id)))
if (!output || (!PARAM_IS_MUTE(id) && !PARAM_IS_GAIN(id) && !PARAM_IS_SRC_ENABLE(id) && !PARAM_IS_SRC_GAIN(id) && !PARAM_IS_BALANCE(id)))
goto err;
if (PARAM_IS_MUTE(id)) {
// output mute control
@ -1098,11 +1108,30 @@ AudioMixer::GetParameterValue(int32 id, bigtime_t *last_change,
}
if (PARAM_IS_GAIN(id)) {
// output gain control
if (*ioSize < output->GetOutputChannelCount() * sizeof(float))
if (fCore->Settings()->UseBalanceControl() && output->GetOutputChannelCount() == 2 && 1 /*channel mask is stereo */) {
// single channel control + balance
if (*ioSize < sizeof(float))
goto err;
*ioSize = sizeof(float);
static_cast<float *>(value)[0] = GAIN_TO_DB((output->GetOutputChannelGain(0) + output->GetOutputChannelGain(1)) / 2);
} else {
// multi channel control
if (*ioSize < output->GetOutputChannelCount() * sizeof(float))
goto err;
*ioSize = output->GetOutputChannelCount() * sizeof(float);
for (int chan = 0; chan < output->GetOutputChannelCount(); chan++)
static_cast<float *>(value)[chan] = GAIN_TO_DB(output->GetOutputChannelGain(chan));
}
}
if (PARAM_IS_BALANCE(id)) {
float l = output->GetOutputChannelGain(0);
float r = output->GetOutputChannelGain(1);
float v = r / (l+r);
TRACE("balance l %1.3f, r %1.3f, v %1.3f\n",l,r,v);
if (*ioSize < sizeof(float))
goto err;
*ioSize = output->GetOutputChannelCount() * sizeof(float);
for (int chan = 0; chan < output->GetOutputChannelCount(); chan++)
static_cast<float *>(value)[chan] = GAIN_TO_DB(output->GetOutputChannelGain(chan));
*ioSize = sizeof(float);
static_cast<float *>(value)[0] = v * 100;
}
if (PARAM_IS_SRC_ENABLE(id)) {
if (*ioSize < sizeof(int32))
@ -1240,7 +1269,7 @@ AudioMixer::SetParameterValue(int32 id, bigtime_t when,
}
} else if (param == 0) {
MixerOutput *output = fCore->Output();
if (!output || (!PARAM_IS_MUTE(id) && !PARAM_IS_GAIN(id) && !PARAM_IS_SRC_ENABLE(id) && !PARAM_IS_SRC_GAIN(id)))
if (!output || (!PARAM_IS_MUTE(id) && !PARAM_IS_GAIN(id) && !PARAM_IS_SRC_ENABLE(id) && !PARAM_IS_SRC_GAIN(id) && !PARAM_IS_BALANCE(id)))
goto err;
if (PARAM_IS_MUTE(id)) {
// output mute control
@ -1250,10 +1279,34 @@ AudioMixer::SetParameterValue(int32 id, bigtime_t when,
}
if (PARAM_IS_GAIN(id)) {
// output gain control
if (size < output->GetOutputChannelCount() * sizeof(float))
goto err;
for (int chan = 0; chan < output->GetOutputChannelCount(); chan++)
output->SetOutputChannelGain(chan, DB_TO_GAIN(static_cast<const float *>(value)[chan]));
if (fCore->Settings()->UseBalanceControl() && output->GetOutputChannelCount() == 2 && 1 /*channel mask is stereo */) {
// single channel control + balance
float l = output->GetOutputChannelGain(0);
float r = output->GetOutputChannelGain(1);
float m = (l + r) / 2; // master volume
float v = DB_TO_GAIN(static_cast<const float *>(value)[0]);
float f = v / m; // factor for both channels
TRACE("gain set l %1.3f, r %1.3f, m %1.3f, v %1.3f, f %1.3f\n",l,r,m,v,f);
output->SetOutputChannelGain(0, output->GetOutputChannelGain(0) * f);
output->SetOutputChannelGain(1, output->GetOutputChannelGain(1) * f);
} else {
// multi channel control
if (size < output->GetOutputChannelCount() * sizeof(float))
goto err;
for (int chan = 0; chan < output->GetOutputChannelCount(); chan++)
output->SetOutputChannelGain(chan, DB_TO_GAIN(static_cast<const float *>(value)[chan]));
}
}
if (PARAM_IS_BALANCE(id)) {
float l = output->GetOutputChannelGain(0);
float r = output->GetOutputChannelGain(1);
float m = (l + r) / 2; // master volume
float v = static_cast<const float *>(value)[0] / 100; // current balance value
float fl = 2 * (1 - v); // left channel factor of master volume
float fr = 2 * v; // right channel factor of master volume
TRACE("balance set l %1.3f, r %1.3f, m %1.3f, v %1.3f, fl %1.3f, fr %1.3f\n",l,r,m,v,fl,fr);
output->SetOutputChannelGain(0, m * fl);
output->SetOutputChannelGain(1, m * fr);
}
if (PARAM_IS_SRC_ENABLE(id)) {
if (size != sizeof(int32))
@ -1357,8 +1410,15 @@ AudioMixer::UpdateParameterWeb()
} else {
group->MakeNullParameter(PARAM_STR2(0), B_MEDIA_RAW_AUDIO, StringForFormat(buf, out), B_GENERIC);
group->MakeDiscreteParameter(PARAM_MUTE(0), B_MEDIA_RAW_AUDIO, "Mute", B_MUTE);
group->MakeContinuousParameter(PARAM_GAIN(0), B_MEDIA_RAW_AUDIO, "Gain", B_MASTER_GAIN, "dB", DB_MIN, DB_MAX, 0.1)
->SetChannelCount(out->GetOutputChannelCount());
if (fCore->Settings()->UseBalanceControl() && out->GetOutputChannelCount() == 2 && 1 /*channel mask is stereo */) {
// single channel control + balance
group->MakeContinuousParameter(PARAM_GAIN(0), B_MEDIA_RAW_AUDIO, "Gain", B_MASTER_GAIN, "dB", DB_MIN, DB_MAX, 0.1);
group->MakeContinuousParameter(PARAM_BALANCE(0), B_MEDIA_RAW_AUDIO, "", B_BALANCE, "", 0, 100, 1);
} else {
// multi channel control
group->MakeContinuousParameter(PARAM_GAIN(0), B_MEDIA_RAW_AUDIO, "Gain", B_MASTER_GAIN, "dB", DB_MIN, DB_MAX, 0.1)
->SetChannelCount(out->GetOutputChannelCount());
}
group->MakeNullParameter(PARAM_STR3(0), B_MEDIA_RAW_AUDIO, "To Output", B_WEB_BUFFER_OUTPUT);
}
@ -1371,12 +1431,26 @@ AudioMixer::UpdateParameterWeb()
// as you don't know what channel each slider controls. Tooltips might help...
if (fCore->Settings()->InputGainControls() == 0) {
// Physical input channels
group->MakeContinuousParameter(PARAM_GAIN(in->ID()), B_MEDIA_RAW_AUDIO, "Gain", B_GAIN, "dB", DB_MIN, DB_MAX, 0.1)
->SetChannelCount(in->GetInputChannelCount());
if (fCore->Settings()->UseBalanceControl() && in->GetInputChannelCount() == 2 && 1 /*channel mask is stereo */) {
// single channel control + balance
group->MakeContinuousParameter(PARAM_GAIN(in->ID()), B_MEDIA_RAW_AUDIO, "Gain", B_GAIN, "dB", DB_MIN, DB_MAX, 0.1);
group->MakeContinuousParameter(PARAM_BALANCE(in->ID()), B_MEDIA_RAW_AUDIO, "", B_BALANCE, "", 0, 100, 1);
} else {
// multi channel control
group->MakeContinuousParameter(PARAM_GAIN(in->ID()), B_MEDIA_RAW_AUDIO, "Gain", B_GAIN, "dB", DB_MIN, DB_MAX, 0.1)
->SetChannelCount(in->GetInputChannelCount());
}
} else {
// Virtual output channels
group->MakeContinuousParameter(PARAM_GAIN(in->ID()), B_MEDIA_RAW_AUDIO, "Gain", B_GAIN, "dB", DB_MIN, DB_MAX, 0.1)
->SetChannelCount(in->GetMixerChannelCount());
if (fCore->Settings()->UseBalanceControl() && in->GetMixerChannelCount() == 2 && 1 /*channel mask is stereo */) {
// single channel control + balance
group->MakeContinuousParameter(PARAM_GAIN(in->ID()), B_MEDIA_RAW_AUDIO, "Gain", B_GAIN, "dB", DB_MIN, DB_MAX, 0.1);
group->MakeContinuousParameter(PARAM_BALANCE(in->ID()), B_MEDIA_RAW_AUDIO, "", B_BALANCE, "", 0, 100, 1);
} else {
// multi channel control
group->MakeContinuousParameter(PARAM_GAIN(in->ID()), B_MEDIA_RAW_AUDIO, "Gain", B_GAIN, "dB", DB_MIN, DB_MAX, 0.1)
->SetChannelCount(in->GetMixerChannelCount());
}
}
group->MakeNullParameter(PARAM_STR3(in->ID()), B_MEDIA_RAW_AUDIO, "To Master", B_WEB_BUFFER_OUTPUT);
}