void AudioEchoWidget::paintEvent(QPaintEvent *) {
QPainter paint(this);
paint.scale(width(), height());
paint.fillRect(rect(), Qt::black);
AudioInputPtr ai = g.ai;
if (! ai || ! ai->sesEcho)
return;
ai->qmSpeex.lock();
spx_int32_t sz;
speex_echo_ctl(ai->sesEcho, SPEEX_ECHO_GET_IMPULSE_RESPONSE_SIZE, &sz);
STACKVAR(spx_int32_t, w, sz);
STACKVAR(float, W, sz);
speex_echo_ctl(ai->sesEcho, SPEEX_ECHO_GET_IMPULSE_RESPONSE, w);
ai->qmSpeex.unlock();
int N = 160;
int n = 2 * N;
int M = sz / n;
drft_lookup d;
mumble_drft_init(&d, n);
for (int j=0;j<M;j++) {
for (int i=0;i<n;i++)
W[j*n+i] = static_cast<float>(w[j*n+i]) / static_cast<float>(n);
mumble_drft_forward(&d, & W[j*n]);
}
mumble_drft_clear(&d);
float xscale = 1.0f / static_cast<float>(N);
float yscale = 1.0f / static_cast<float>(M);
for (int j = 0; j < M; j++) {
for (int i=1;i < N; i++) {
float xa = static_cast<float>(i) * xscale;
float ya = static_cast<float>(j) * yscale;
float xb = xa + xscale;
float yb = ya + yscale;
const QColor &c = mapEchoToColor(sqrtf(W[j*n+2*i]*W[j*n+2*i]+W[j*n+2*i-1]*W[j*n+2*i-1]) / 65536.f);
paint.fillRect(QRectF(QPointF(xa, ya), QPointF(xb, yb)), c);
}
}
QPolygonF poly;
xscale = 1.0f / (2.0f * static_cast<float>(n));
yscale = 1.0f / (200.0f * 32767.0f);
for (int i = 0; i < 2 * n; i++) {
poly << QPointF(static_cast<float>(i) * xscale, 0.5f + static_cast<float>(w[i]) * yscale);
}
paint.setPen(QColor::fromRgbF(1.0f, 0.0f, 1.0f));
paint.drawPolyline(poly);
}
void AudioEchoWidget::paintGL() {
AudioInputPtr ai = g.ai;
if (! ai || ! ai->sesEcho)
return;
ai->qmSpeex.lock();
spx_int32_t sz;
speex_echo_ctl(ai->sesEcho, SPEEX_ECHO_GET_IMPULSE_RESPONSE_SIZE, &sz);
STACKVAR(spx_int32_t, w, sz);
STACKVAR(float, W, sz);
speex_echo_ctl(ai->sesEcho, SPEEX_ECHO_GET_IMPULSE_RESPONSE, w);
ai->qmSpeex.unlock();
int N = 160;
int n = 2 * N;
int M = sz / n;
drft_lookup d;
mumble_drft_init(&d, n);
for (int j=0;j<M;j++) {
for (int i=0;i<n;i++)
W[j*n+i] = static_cast<float>(w[j*n+i]) / static_cast<float>(n);
mumble_drft_forward(&d, & W[j*n]);
}
mumble_drft_clear(&d);
float xscale = 1.0f / static_cast<float>(N);
float yscale = 1.0f / static_cast<float>(M);
glBegin(GL_QUADS);
for (int j = 0; j < M; j++) {
for (int i=1;i < N; i++) {
float xa = static_cast<float>(i) * xscale;
float ya = static_cast<float>(j) * yscale;
float xb = xa + xscale;
float yb = ya + yscale;
mapEchoToColor(sqrtf(W[j*n+2*i]*W[j*n+2*i]+W[j*n+2*i-1]*W[j*n+2*i-1]) / 65536.f);
glVertex2f(xa, ya);
glVertex2f(xb, ya);
glVertex2f(xb, yb);
glVertex2f(xa, yb);
}
}
glEnd();
glBegin(GL_LINE_STRIP);
glColor3f(1.0f, 0.0f, 1.0f);
xscale = 1.0f / (2.0f*static_cast<float>(n));
yscale = 1.0f / (200.0f * 32767.0f);
for (int i=0;i<2*n;i++) {
glVertex2f(static_cast<float>(i)*xscale, 0.5f + static_cast<float>(w[i]) * yscale);
}
glEnd();
}
AudioInput::AudioInput() {
speex_bits_init(&sbBits);
speex_bits_reset(&sbBits);
iFrames = 0;
iSampleRate = SAMPLE_RATE;
esEncState=speex_encoder_init(speex_lib_get_mode(SPEEX_MODEID_WB));
speex_encoder_ctl(esEncState,SPEEX_GET_FRAME_SIZE,&iFrameSize);
mumble_drft_init(&fftTable, iFrameSize);
iFrameCounter = 0;
iSilentFrames = 0;
iHoldFrames = 0;
iBestBin = 0;
int iArg=1;
float fArg=0.0;
speex_encoder_ctl(esEncState,SPEEX_SET_VBR, &iArg);
iArg = 0;
speex_encoder_ctl(esEncState,SPEEX_SET_VAD, &iArg);
speex_encoder_ctl(esEncState,SPEEX_SET_DTX, &iArg);
fArg = static_cast<float>(g.s.iQuality);
speex_encoder_ctl(esEncState,SPEEX_SET_VBR_QUALITY, &fArg);
speex_encoder_ctl(esEncState,SPEEX_GET_BITRATE, &iArg);
speex_encoder_ctl(esEncState, SPEEX_SET_VBR_MAX_BITRATE, &iArg);
iArg = 5;
speex_encoder_ctl(esEncState,SPEEX_SET_COMPLEXITY, &iArg);
bResetProcessor = true;
sppPreprocess = NULL;
sesEcho = NULL;
srsMic = srsEcho = NULL;
jb = jitter_buffer_init(10);
iJitterSeq = 1;
psMic = new short[iFrameSize];
psSpeaker = new short[iFrameSize];
psClean = new short[iFrameSize];
iEchoChannels = iMicChannels = 0;
iEchoFreq = iMicFreq = SAMPLE_RATE;
iEchoFilled = iMicFilled = 0;
eMicFormat = eEchoFormat = SampleFloat;
iMicSampleSize = iEchoSampleSize = 0;
bPreviousVoice = false;
pfMicInput = pfEchoInput = pfOutput = NULL;
iBitrate = 0;
dPeakMic = dPeakSignal = dPeakSpeaker = 0.0;
if (g.uiSession) {
setMaxBandwidth(g.iMaxBandwidth);
}
bRunning = false;
connect(this, SIGNAL(doMute()), g.mw->qaAudioMute, SLOT(trigger()), Qt::QueuedConnection);
}
