void AudioInput::setMaxBandwidth(int bitspersec) {
if (bitspersec == g.iMaxBandwidth)
return;
int frames;
int bitrate;
adjustBandwidth(bitspersec, bitrate, frames);
g.iMaxBandwidth = bitspersec;
if (bitspersec != -1) {
if ((bitrate != g.s.iQuality) || (frames != g.s.iFramesPerPacket))
g.mw->msgBox(tr("Server maximum network bandwidth is only %1 kbit/s. Audio quality auto-adjusted to %2 kbit/s (%3 ms)").arg(bitspersec / 1000).arg(bitrate / 1000).arg(frames*10));
}
AudioInputPtr ai = g.ai;
if (ai) {
g.iAudioBandwidth = getNetworkBandwidth(bitrate, frames);
ai->iAudioQuality = bitrate;
ai->iAudioFrames = frames;
return;
}
ai.reset();
Audio::stopInput();
Audio::startInput();
}
void AudioInput::adjustBandwidth(int bitspersec, int &bitrate, int &frames) {
frames = g.s.iFramesPerPacket;
bitrate = g.s.iQuality;
if (bitspersec == -1) {
// No limit
} else {
if (getNetworkBandwidth(bitrate, frames) > bitspersec) {
if ((frames <= 4) && (bitspersec <= 32000))
frames = 4;
else if ((frames == 1) && (bitspersec <= 64000))
frames = 2;
else if ((frames == 2) && (bitspersec <= 48000))
frames = 4;
if (getNetworkBandwidth(bitrate, frames) > bitspersec) {
do {
bitrate -= 1000;
} while ((bitrate > 8000) && (getNetworkBandwidth(bitrate, frames) > bitspersec));
}
}
}
if (bitrate <= 8000)
bitrate = 8000;
}
AudioInput::AudioInput() : opusBuffer(g.s.iFramesPerPacket * (SAMPLE_RATE / 100)) {
adjustBandwidth(g.iMaxBandwidth, iAudioQuality, iAudioFrames);
g.iAudioBandwidth = getNetworkBandwidth(iAudioQuality, iAudioFrames);
umtType = MessageHandler::UDPVoiceCELTAlpha;
cCodec = NULL;
ceEncoder = NULL;
iSampleRate = SAMPLE_RATE;
iFrameSize = SAMPLE_RATE / 100;
#ifdef USE_OPUS
opusState = opus_encoder_create(SAMPLE_RATE, 1, OPUS_APPLICATION_VOIP, NULL);
opus_encoder_ctl(opusState, OPUS_SET_VBR(0)); // CBR
#endif
qWarning("AudioInput: %d bits/s, %d hz, %d sample", iAudioQuality, iSampleRate, iFrameSize);
iEchoFreq = iMicFreq = iSampleRate;
iFrameCounter = 0;
iSilentFrames = 0;
iHoldFrames = 0;
iBufferedFrames = 0;
bResetProcessor = true;
bEchoMulti = false;
sppPreprocess = NULL;
sesEcho = NULL;
srsMic = srsEcho = NULL;
iJitterSeq = 0;
iMinBuffered = 1000;
psMic = new short[iFrameSize];
psClean = new short[iFrameSize];
psSpeaker = NULL;
iEchoChannels = iMicChannels = 0;
iEchoFilled = iMicFilled = 0;
eMicFormat = eEchoFormat = SampleFloat;
iMicSampleSize = iEchoSampleSize = 0;
bPreviousVoice = false;
bResetEncoder = true;
pfMicInput = pfEchoInput = pfOutput = NULL;
iBitrate = 0;
dPeakSignal = dPeakSpeaker = dPeakMic = dPeakCleanMic = 0.0;
if (g.uiSession) {
setMaxBandwidth(g.iMaxBandwidth);
}
bRunning = true;
connect(this, SIGNAL(doDeaf()), g.mw->qaAudioDeaf, SLOT(trigger()), Qt::QueuedConnection);
connect(this, SIGNAL(doMute()), g.mw->qaAudioMute, SLOT(trigger()), Qt::QueuedConnection);
}
AudioInput::AudioInput() {
adjustBandwidth(g.iMaxBandwidth, iAudioQuality, iAudioFrames);
g.iAudioBandwidth = getNetworkBandwidth(iAudioQuality, iAudioFrames);
if (preferCELT(iAudioQuality, iAudioFrames))
umtType = MessageHandler::UDPVoiceCELTAlpha;
else
umtType = MessageHandler::UDPVoiceSpeex;
cCodec = NULL;
ceEncoder = NULL;
if (umtType != MessageHandler::UDPVoiceSpeex) {
iSampleRate = SAMPLE_RATE;
iFrameSize = SAMPLE_RATE / 100;
esSpeex = NULL;
qWarning("AudioInput: %d bits/s, %d hz, %d sample CELT", iAudioQuality, iSampleRate, iFrameSize);
} else {
iAudioFrames /= 2;
speex_bits_init(&sbBits);
speex_bits_reset(&sbBits);
esSpeex = speex_encoder_init(speex_lib_get_mode(SPEEX_MODEID_UWB));
speex_encoder_ctl(esSpeex,SPEEX_GET_FRAME_SIZE,&iFrameSize);
speex_encoder_ctl(esSpeex,SPEEX_GET_SAMPLING_RATE,&iSampleRate);
int iArg=1;
speex_encoder_ctl(esSpeex,SPEEX_SET_VBR, &iArg);
iArg = 0;
speex_encoder_ctl(esSpeex,SPEEX_SET_VAD, &iArg);
speex_encoder_ctl(esSpeex,SPEEX_SET_DTX, &iArg);
float fArg=8.0;
speex_encoder_ctl(esSpeex,SPEEX_SET_VBR_QUALITY, &fArg);
iArg = iAudioQuality;
speex_encoder_ctl(esSpeex, SPEEX_SET_VBR_MAX_BITRATE, &iArg);
iArg = 5;
speex_encoder_ctl(esSpeex,SPEEX_SET_COMPLEXITY, &iArg);
qWarning("AudioInput: %d bits/s, %d hz, %d sample Speex-UWB", iAudioQuality, iSampleRate, iFrameSize);
}
iEchoFreq = iMicFreq = iSampleRate;
iFrameCounter = 0;
iSilentFrames = 0;
iHoldFrames = 0;
bResetProcessor = true;
bEchoMulti = false;
sppPreprocess = NULL;
sesEcho = NULL;
srsMic = srsEcho = NULL;
iJitterSeq = 0;
iMinBuffered = 1000;
psMic = new short[iFrameSize];
psClean = new short[iFrameSize];
psSpeaker = NULL;
iEchoChannels = iMicChannels = 0;
iEchoFilled = iMicFilled = 0;
eMicFormat = eEchoFormat = SampleFloat;
iMicSampleSize = iEchoSampleSize = 0;
bPreviousVoice = false;
pfMicInput = pfEchoInput = pfOutput = NULL;
iBitrate = 0;
dPeakSignal = dPeakSpeaker = dPeakMic = dPeakCleanMic = 0.0;
if (g.uiSession) {
setMaxBandwidth(g.iMaxBandwidth);
}
bRunning = true;
connect(this, SIGNAL(doDeaf()), g.mw->qaAudioDeaf, SLOT(trigger()), Qt::QueuedConnection);
}
