static int sync_to_timecode(struct player_t *pl)
{
float when;
double tcpos;
signed int timecode;
timecode = timecoder_get_position(pl->timecoder, &when);
/* Instruct the caller to disconnect the timecoder if the needle
* is outside the 'safe' zone of the record */
if(timecode != -1 && timecode > timecoder_get_safe(pl->timecoder))
return -1;
/* If the timecoder is alive, use the pitch from the sine wave */
pl->pitch = timecoder_get_pitch(pl->timecoder);
/* If we can read an absolute time from the timecode, then use it */
if(timecode == -1)
pl->target_valid = 0;
else {
tcpos = (double)timecode / timecoder_get_resolution(pl->timecoder);
pl->target_position = tcpos + pl->pitch * when;
pl->target_valid = 1;
}
return 0;
}
VinylControlXwax::VinylControlXwax(ConfigObject<ConfigValue>* pConfig, QString group)
: VinylControl(pConfig, group),
m_dVinylPositionOld(0.0),
m_pWorkBuffer(new short[MAX_BUFFER_LEN]),
m_workBufferSize(MAX_BUFFER_LEN),
m_iQualPos(0),
m_iQualFilled(0),
m_iPosition(-1),
m_bAtRecordEnd(false),
m_bForceResync(false),
m_iVCMode(mode->get()),
m_iOldVCMode(MIXXX_VCMODE_ABSOLUTE),
m_dOldFilePos(0.0),
m_dOldDuration(0.0),
m_dOldDurationInaccurate(-1.0),
m_pPitchRing(NULL),
m_iPitchRingSize(0),
m_iPitchRingPos(0),
m_iPitchRingFilled(0),
m_dDisplayPitch(0.0),
m_pSteadySubtle(new SteadyPitch(0.12)),
m_pSteadyGross(new SteadyPitch(0.5)),
m_bCDControl(false),
m_bTrackSelectMode(false),
m_pControlTrackSelector(NULL),
m_pControlTrackLoader(NULL),
m_dLastTrackSelectPos(0.0),
m_dCurTrackSelectPos(0.0),
m_dDriftAmt(0.0),
m_dUiUpdateTime(-1.0) {
// TODO(rryan): Should probably live in VinylControlManager since it's not
// specific to a VC deck.
signalenabled->slotSet(m_pConfig->getValueString(
ConfigKey(VINYL_PREF_KEY, "show_signal_quality")).toInt());
// Get the vinyl type and speed.
QString strVinylType = m_pConfig->getValueString(
ConfigKey(group,"vinylcontrol_vinyl_type"));
QString strVinylSpeed = m_pConfig->getValueString(
ConfigKey(group,"vinylcontrol_speed_type"));
// libxwax indexes by C-strings so we pass libxwax string literals so we
// don't have to deal with freeing the strings later
char* timecode = NULL;
if (strVinylType == MIXXX_VINYL_SERATOCV02VINYLSIDEA) {
timecode = (char*)"serato_2a";
}
else if (strVinylType == MIXXX_VINYL_SERATOCV02VINYLSIDEB) {
timecode = (char*)"serato_2b";
} else if (strVinylType == MIXXX_VINYL_SERATOCD) {
timecode = (char*)"serato_cd";
m_bCDControl = true;
} else if (strVinylType == MIXXX_VINYL_TRAKTORSCRATCHSIDEA) {
timecode = (char*)"traktor_a";
} else if (strVinylType == MIXXX_VINYL_TRAKTORSCRATCHSIDEB) {
timecode = (char*)"traktor_b";
} else if (strVinylType == MIXXX_VINYL_MIXVIBESDVS) {
timecode = (char*)"mixvibes_v2";
} else {
qDebug() << "Unknown vinyl type, defaulting to serato_2a";
timecode = (char*)"serato_2a";
}
timecode_def* tc_def = timecoder_find_definition(timecode);
if (tc_def == NULL) {
qDebug() << "Error finding timecode definition for " << timecode << ", defaulting to serato_2a";
timecode = (char*)"serato_2a";
tc_def = timecoder_find_definition(timecode);
}
double speed = 1.0;
double rpm = 100.0 / 3.0;
if (strVinylSpeed == MIXXX_VINYL_SPEED_45) {
rpm = 45.0;
speed = 1.35;
}
double latency = ControlObject::getControl(
ConfigKey("[Master]", "latency"))->get();
if (latency <= 0 || latency > 200) {
qDebug() << "Failed to get sane latency, assuming 20 as a reasonable value";
latency = 20;
}
int iSampleRate = m_pConfig->getValueString(
ConfigKey("[Soundcard]","Samplerate")).toULong();
// Set pitch ring size to 1/4 of one revolution -- a full revolution adds
// too much stickiness to the pitch.
m_iPitchRingSize = static_cast<int>(60000 / (rpm * latency * 4));
m_pPitchRing = new double[m_iPitchRingSize];
qDebug() << "Xwax Vinyl control starting with a sample rate of:" << iSampleRate;
qDebug() << "Building timecode lookup tables for" << strVinylType << "with speed" << strVinylSpeed;
// Initialize the timecoder structure. Use the static mutex so that we only
// do this once across the VinylControlXwax instances.
s_xwaxLUTMutex.lock();
timecoder_init(&timecoder, tc_def, speed, iSampleRate, /* phono */ false);
timecoder_monitor_init(&timecoder, MIXXX_VINYL_SCOPE_SIZE);
//Note that timecoder_init will not double-malloc the LUTs, and after this we are guaranteed
//that the LUT has been generated unless we ran out of memory.
s_bLUTInitialized = true;
m_uiSafeZone = timecoder_get_safe(&timecoder);
//}
s_xwaxLUTMutex.unlock();
qDebug() << "Starting vinyl control xwax thread";
}
