#include "tsound_t.h"
#include "texception.h"
#include "tthread.h"
#include <errno.h>
#include <audio.h>
#include <unistd.h>
#include <queue>
#include <set>
// forward declaration
namespace {
bool isInterfaceSupported(int deviceType, int interfaceType);
bool setDefaultInput(TSoundInputDevice::Source type);
bool setDefaultOutput();
bool isChangeOutput(ULONG sampleRate);
}
//==============================================================================
class TSoundOutputDeviceImp {
public:
ALport m_port;
bool m_stopped;
bool m_isPlaying;
bool m_looped;
TSoundTrackFormat m_currentFormat;
std::queue<TSoundTrackP> m_queuedSoundTracks;
std::set<int> m_supportedRate;
TThread::Executor m_executor;
TThread::Mutex m_mutex;
TSoundOutputDeviceImp()
: m_stopped(false)
, m_isPlaying(false)
, m_looped(false)
, m_port(NULL)
, m_queuedSoundTracks()
, m_supportedRate(){};
~TSoundOutputDeviceImp(){};
bool doOpenDevice(const TSoundTrackFormat &format);
void insertAllRate();
bool verifyRate();
};
//-----------------------------------------------------------------------------
bool TSoundOutputDeviceImp::doOpenDevice(const TSoundTrackFormat &format) {
ALconfig config;
ALpv pvbuf[3];
m_currentFormat = format;
// AL_MONITOR_CTL fa parte dei vecchi andrebbero trovati quelli nuovi
pvbuf[0].param = AL_PORT_COUNT;
pvbuf[1].param = AL_MONITOR_CTL;
if (alGetParams(AL_DEFAULT_OUTPUT, pvbuf, 2) < 0)
if (oserror() == AL_BAD_DEVICE_ACCESS)
return false; // throw TException("Could not access audio hardware.");
if (!isInterfaceSupported(AL_DEFAULT_OUTPUT, AL_SPEAKER_IF_TYPE))
return false; // throw TException("Speakers are not supported");
int dev = alGetResourceByName(AL_SYSTEM, (char *)"Headphone/Speaker",
AL_DEVICE_TYPE);
if (!dev) return false; // throw TException("invalid device speakers");
pvbuf[0].param = AL_DEFAULT_OUTPUT;
pvbuf[0].value.i = dev;
alSetParams(AL_SYSTEM, pvbuf, 1);
ALfixed buf[2] = {alDoubleToFixed(0), alDoubleToFixed(0)};
config = alNewConfig();
// qui devo metterci gli altoparlanti e poi setto i valori per il default
// output
pvbuf[0].param = AL_RATE;
pvbuf[0].value.ll = alDoubleToFixed((double)format.m_sampleRate);
pvbuf[1].param = AL_GAIN;
pvbuf[1].value.ptr = buf;
pvbuf[1].sizeIn = 8;
pvbuf[2].param = AL_INTERFACE;
pvbuf[2].value.i = AL_SPEAKER_IF_TYPE;
if (alSetParams(AL_DEFAULT_OUTPUT, pvbuf, 3) < 0) return false;
// throw TException("Unable to set params for output device");
if (alSetChannels(config, format.m_channelCount) == -1)
return false; // throw TException("Error to setting audio hardware.");
int bytePerSample = format.m_bitPerSample >> 3;
switch (bytePerSample) {
case 3:
bytePerSample++;
break;
default:
break;
}
if (alSetWidth(config, bytePerSample) == -1)
return false; // throw TException("Error to setting audio hardware.");
if (alSetSampFmt(config, AL_SAMPFMT_TWOSCOMP) == -1)
return false; // throw TException("Error to setting audio hardware.");
if (alSetQueueSize(config, (TINT32)format.m_sampleRate) == -1)
return false; // throw TException("Error to setting audio hardware.");
m_port = alOpenPort("AudioOutput", "w", config);
if (!m_port) return false; // throw TException("Could not open audio port.");
alFreeConfig(config);
return true;
}
//-----------------------------------------------------------------------------
void TSoundOutputDeviceImp::insertAllRate() {
m_supportedRate.insert(8000);
m_supportedRate.insert(11025);
m_supportedRate.insert(16000);
m_supportedRate.insert(22050);
m_supportedRate.insert(32000);
m_supportedRate.insert(44100);
m_supportedRate.insert(48000);
}
//-----------------------------------------------------------------------------
bool TSoundOutputDeviceImp::verifyRate() {
// Sample Rate
ALparamInfo pinfo;
int ret = alGetParamInfo(AL_DEFAULT_OUTPUT, AL_RATE, &pinfo);
if (ret != -1 && pinfo.elementType == AL_FIXED_ELEM) {
int min = (int)alFixedToDouble(pinfo.min.ll);
int max = (int)alFixedToDouble(pinfo.max.ll);
std::set<int>::iterator it;
for (it = m_supportedRate.begin(); it != m_supportedRate.end(); ++it)
if (*it < min || *it > max) m_supportedRate.erase(*it);
if (m_supportedRate.end() == m_supportedRate.begin()) return false;
} else if (ret == AL_BAD_PARAM)
return false;
else
return false;
return true;
}
//==============================================================================
class PlayTask : public TThread::Runnable {
public:
TSoundOutputDeviceImp *m_devImp;
TSoundTrackP m_sndtrack;
PlayTask(TSoundOutputDeviceImp *devImp, const TSoundTrackP &st)
: TThread::Runnable(), m_devImp(devImp), m_sndtrack(st){};
~PlayTask(){};
void run();
};
void PlayTask::run() {
int leftToPlay = m_sndtrack->getSampleCount();
int i = 0;
if (!m_devImp->m_port ||
(m_devImp->m_currentFormat != m_sndtrack->getFormat()) ||
isChangeOutput(m_sndtrack->getSampleRate()))
if (!m_devImp->doOpenDevice(m_sndtrack->getFormat())) return;
while ((leftToPlay > 0) && m_devImp->m_isPlaying) {
int fillable = alGetFillable(m_devImp->m_port);
if (!fillable) continue;
if (fillable < leftToPlay) {
alWriteFrames(m_devImp->m_port, (void *)(m_sndtrack->getRawData() + i),
fillable);
// ricorda getSampleSize restituisce m_sampleSize che comprende gia'
// la moltiplicazione per il numero dei canali
i += fillable * m_sndtrack->getSampleSize();
leftToPlay -= fillable;
} else {
alWriteFrames(m_devImp->m_port, (void *)(m_sndtrack->getRawData() + i),
leftToPlay);
leftToPlay = 0;
}
}
if (!m_devImp->m_stopped) {
while (ALgetfilled(m_devImp->m_port) > 0) sginap(1);
{
TThread::ScopedLock sl(m_devImp->m_mutex);
if (!m_devImp->m_looped) m_devImp->m_queuedSoundTracks.pop();
if (m_devImp->m_queuedSoundTracks.empty()) {
m_devImp->m_isPlaying = false;
m_devImp->m_stopped = true;
m_devImp->m_looped = false;
} else {
m_devImp->m_executor.addTask(
new PlayTask(m_devImp, m_devImp->m_queuedSoundTracks.front()));
}
}
} else {
alDiscardFrames(m_devImp->m_port, alGetFilled(m_devImp->m_port));
while (!m_devImp->m_queuedSoundTracks.empty())
m_devImp->m_queuedSoundTracks.pop();
}
}
//==============================================================================
TSoundOutputDevice::TSoundOutputDevice() : m_imp(new TSoundOutputDeviceImp) {
if (!setDefaultOutput())
throw TSoundDeviceException(TSoundDeviceException::UnableSetDevice,
"Speaker not supported");
try {
supportsVolume();
} catch (TSoundDeviceException &e) {
throw TSoundDeviceException(e.getType(), e.getMessage());
}
m_imp->insertAllRate();
}
//------------------------------------------------------------------------------
TSoundOutputDevice::~TSoundOutputDevice() {
close();
delete m_imp;
}
//------------------------------------------------------------------------------
bool TSoundOutputDevice::installed() {
if (alQueryValues(AL_SYSTEM, AL_DEFAULT_OUTPUT, 0, 0, 0, 0) <= 0)
return false;
return true;
}
//------------------------------------------------------------------------------
bool TSoundOutputDevice::open(const TSoundTrackP &st) {
if (!m_imp->doOpenDevice(st->getFormat()))
throw TSoundDeviceException(
TSoundDeviceException::UnableOpenDevice,
"Problem to open the output device or set some params");
return true;
}
//------------------------------------------------------------------------------
bool TSoundOutputDevice::close() {
stop();
if (m_imp->m_port) alClosePort(m_imp->m_port);
m_imp->m_port = NULL;
return true;
}
//------------------------------------------------------------------------------
void TSoundOutputDevice::play(const TSoundTrackP &st, TINT32 s0, TINT32 s1,
bool loop, bool scrubbing) {
if (!st->getSampleCount()) return;
{
TThread::ScopedLock sl(m_imp->m_mutex);
if (m_imp->m_looped)
throw TSoundDeviceException(
TSoundDeviceException::Busy,
"Unable to queue another playback when the sound player is looping");
m_imp->m_isPlaying = true;
m_imp->m_stopped = false;
m_imp->m_looped = loop;
}
TSoundTrackFormat fmt;
try {
fmt = getPreferredFormat(st->getFormat());
if (fmt != st->getFormat()) {
throw TSoundDeviceException(TSoundDeviceException::UnsupportedFormat,
"Unsupported Format");
}
} catch (TSoundDeviceException &e) {
throw TSoundDeviceException(TSoundDeviceException::UnsupportedFormat,
e.getMessage());
}
assert(s1 >= s0);
TSoundTrackP subTrack = st->extract(s0, s1);
// far partire il thread
if (m_imp->m_queuedSoundTracks.empty()) {
m_imp->m_queuedSoundTracks.push(subTrack);
m_imp->m_executor.addTask(new PlayTask(m_imp, subTrack));
} else
m_imp->m_queuedSoundTracks.push(subTrack);
}
//------------------------------------------------------------------------------
void TSoundOutputDevice::stop() {
if (!m_imp->m_isPlaying) return;
TThread::ScopedLock sl(m_imp->m_mutex);
m_imp->m_isPlaying = false;
m_imp->m_stopped = true;
m_imp->m_looped = false;
}
//------------------------------------------------------------------------------
double TSoundOutputDevice::getVolume() {
ALpv pv[1];
ALfixed value[2];
try {
supportsVolume();
} catch (TSoundDeviceException &e) {
throw TSoundDeviceException(e.getType(), e.getMessage());
}
pv[0].param = AL_GAIN;
pv[0].value.ptr = value;
pv[0].sizeIn = 8;
alGetParams(AL_DEFAULT_OUTPUT, pv, 1);
double val =
(((alFixedToDouble(value[0]) + alFixedToDouble(value[1])) / 2.) + 60.) /
8.05;
return val;
}
//------------------------------------------------------------------------------
bool TSoundOutputDevice::setVolume(double volume) {
ALpv pv[1];
ALfixed value[2];
try {
supportsVolume();
} catch (TSoundDeviceException &e) {
throw TSoundDeviceException(e.getType(), e.getMessage());
}
double val = -60. + 8.05 * volume;
value[0] = alDoubleToFixed(val);
value[1] = alDoubleToFixed(val);
pv[0].param = AL_GAIN;
pv[0].value.ptr = value;
pv[0].sizeIn = 8;
if (alSetParams(AL_DEFAULT_OUTPUT, pv, 1) < 0) return false;
return true;
}
//------------------------------------------------------------------------------
bool TSoundOutputDevice::supportsVolume() {
ALparamInfo pinfo;
int ret;
ret = alGetParamInfo(AL_DEFAULT_OUTPUT, AL_GAIN, &pinfo);
double min = alFixedToDouble(pinfo.min.ll);
double max = alFixedToDouble(pinfo.max.ll);
if ((ret != -1) && (min != max) && (max != 0.0))
return true;
else if ((ret == AL_BAD_PARAM) || ((min == max) && (max == 0.0)))
throw TSoundDeviceException(TSoundDeviceException::UnableVolume,
"It is impossible to chamge setting of volume");
else
throw TSoundDeviceException(TSoundDeviceException::NoMixer,
"Output device is not accessible");
}
//------------------------------------------------------------------------------
bool TSoundOutputDevice::isPlaying() const { return m_imp->m_isPlaying; }
//------------------------------------------------------------------------------
bool TSoundOutputDevice::isLooping() {
TThread::ScopedLock sl(m_imp->m_mutex);
return m_imp->m_looped;
}
//------------------------------------------------------------------------------
void TSoundOutputDevice::setLooping(bool loop) {
TThread::ScopedLock sl(m_imp->m_mutex);
m_imp->m_looped = loop;
}
//------------------------------------------------------------------------------
TSoundTrackFormat TSoundOutputDevice::getPreferredFormat(ULONG sampleRate,
int channelCount,
int bitPerSample) {
TSoundTrackFormat fmt;
int ret;
if (!m_imp->verifyRate())
throw TSoundDeviceException(TSoundDeviceException::UnsupportedFormat,
"There isn't any support rate");
if (m_imp->m_supportedRate.find((int)sampleRate) ==
m_imp->m_supportedRate.end()) {
std::set<int>::iterator it =
m_imp->m_supportedRate.lower_bound((int)sampleRate);
if (it == m_imp->m_supportedRate.end()) {
it = std::max_element(m_imp->m_supportedRate.begin(),
m_imp->m_supportedRate.end());
if (it != m_imp->m_supportedRate.end())
sampleRate = *(m_imp->m_supportedRate.rbegin());
else
throw TSoundDeviceException(TSoundDeviceException::UnsupportedFormat,
"There isn't a supported rate");
} else
sampleRate = *it;
}
int value;
ALvalue vals[32];
if ((ret = alQueryValues(AL_DEFAULT_OUTPUT, AL_CHANNELS, vals, 32, 0, 0)) > 0)
for (int i = 0; i < ret; ++i) value = vals[i].i;
else if (oserror() == AL_BAD_PARAM)
throw TSoundDeviceException(
TSoundDeviceException::NoMixer,
"It is impossible ask for the max numbers of channels supported");
else
throw TSoundDeviceException(
TSoundDeviceException::NoMixer,
"It is impossibile information about ouput device");
if (value > 2) value = 2;
if (channelCount > value)
channelCount = value;
else if (channelCount <= 0)
channelCount = 1;
if (bitPerSample <= 8)
bitPerSample = 8;
else if (bitPerSample <= 16)
bitPerSample = 16;
else
bitPerSample = 24;
fmt.m_bitPerSample = bitPerSample;
fmt.m_channelCount = channelCount;
fmt.m_sampleRate = sampleRate;
fmt.m_signedSample = true;
return fmt;
}
//------------------------------------------------------------------------------
TSoundTrackFormat TSoundOutputDevice::getPreferredFormat(
const TSoundTrackFormat &format) {
try {
return getPreferredFormat(format.m_sampleRate, format.m_channelCount,
format.m_bitPerSample);
} catch (TSoundDeviceException &e) {
throw TSoundDeviceException(e.getType(), e.getMessage());
}
}
//==============================================================================
//==============================================================================
// REGISTRAZIONE
//==============================================================================
//==============================================================================
class TSoundInputDeviceImp {
public:
ALport m_port;
bool m_stopped;
bool m_isRecording;
bool m_oneShotRecording;
TINT32 m_recordedSampleCount;
vector<char *> m_recordedBlocks;
vector<int> m_samplePerBlocks;
TSoundTrackFormat m_currentFormat;
TSoundTrackP m_st;
std::set<int> m_supportedRate;
TThread::Executor m_executor;
TSoundInputDeviceImp()
: m_stopped(false)
, m_isRecording(false)
, m_port(NULL)
, m_recordedBlocks()
, m_samplePerBlocks()
, m_recordedSampleCount(0)
, m_oneShotRecording(false)
, m_st(0)
, m_supportedRate(){};
~TSoundInputDeviceImp(){};
bool doOpenDevice(const TSoundTrackFormat &format,
TSoundInputDevice::Source devType);
void insertAllRate();
bool verifyRate();
};
bool TSoundInputDeviceImp::doOpenDevice(const TSoundTrackFormat &format,
TSoundInputDevice::Source devType) {
ALconfig config;
ALpv pvbuf[2];
m_currentFormat = format;
// AL_MONITOR_CTL fa parte dei vecchi andrebbero trovati quelli nuovi
pvbuf[0].param = AL_PORT_COUNT;
pvbuf[1].param = AL_MONITOR_CTL;
if (alGetParams(AL_DEFAULT_INPUT, pvbuf, 2) < 0)
if (oserror() == AL_BAD_DEVICE_ACCESS)
return false; // throw TException("Could not access audio hardware.");
config = alNewConfig();
if (!setDefaultInput(devType))
return false; // throw TException("Could not set the input device
// specified");
pvbuf[0].param = AL_RATE;
pvbuf[0].value.ll = alDoubleToFixed(format.m_sampleRate);
ALfixed buf[2] = {alDoubleToFixed(0), alDoubleToFixed(0)};
pvbuf[1].param = AL_GAIN;
pvbuf[1].value.ptr = buf;
pvbuf[1].sizeIn = 8;
if (alSetParams(AL_DEFAULT_INPUT, pvbuf, 2) < 0)
return false; // throw TException("Problem to set params ");
if (alSetChannels(config, format.m_channelCount) == -1)
return false; // throw TException("Error to setting audio hardware.");
int bytePerSample = format.m_bitPerSample >> 3;
switch (bytePerSample) {
case 3:
bytePerSample++;
break;
default:
break;
}
if (alSetWidth(config, bytePerSample) == -1)
return false; // throw TException("Error to setting audio hardware.");
if (alSetSampFmt(config, AL_SAMPFMT_TWOSCOMP) == -1)
return false; // throw TException("Error to setting audio hardware.");
if (alSetQueueSize(config, (TINT32)format.m_sampleRate) == -1)
return false; // throw TException("Error to setting audio hardware.");
alSetDevice(config, AL_DEFAULT_INPUT);
m_port = alOpenPort("AudioInput", "r", config);
if (!m_port) return false; // throw TException("Could not open audio port.");
alFreeConfig(config);
return true;
}
//-----------------------------------------------------------------------------
void TSoundInputDeviceImp::insertAllRate() {
m_supportedRate.insert(8000);
m_supportedRate.insert(11025);
m_supportedRate.insert(16000);
m_supportedRate.insert(22050);
m_supportedRate.insert(32000);
m_supportedRate.insert(44100);
m_supportedRate.insert(48000);
}
//-----------------------------------------------------------------------------
bool TSoundInputDeviceImp::verifyRate() {
// Sample Rate
ALparamInfo pinfo;
int ret = alGetParamInfo(AL_DEFAULT_INPUT, AL_RATE, &pinfo);
if (ret != -1 && pinfo.elementType == AL_FIXED_ELEM) {
int min = (int)alFixedToDouble(pinfo.min.ll);
int max = (int)alFixedToDouble(pinfo.max.ll);
std::set<int>::iterator it;
for (it = m_supportedRate.begin(); it != m_supportedRate.end(); ++it)
if (*it < min || *it > max) m_supportedRate.erase(*it);
if (m_supportedRate.end() == m_supportedRate.begin()) return false;
} else if (ret == AL_BAD_PARAM)
return false;
else
return false;
return true;
}
//==============================================================================
class RecordTask : public TThread::Runnable {
public:
TSoundInputDeviceImp *m_devImp;
int m_ByteToSample;
RecordTask(TSoundInputDeviceImp *devImp, int numByte)
: TThread::Runnable(), m_devImp(devImp), m_ByteToSample(numByte){};
~RecordTask(){};
void run();
};
void RecordTask::run() {
TINT32 byteRecordedSample = 0;
int filled = alGetFilled(m_devImp->m_port);
if (m_devImp->m_oneShotRecording) {
char *rawData = m_devImp->m_recordedBlocks.front();
int sampleSize;
if ((m_devImp->m_currentFormat.m_bitPerSample >> 3) == 3)
sampleSize = 4;
else
sampleSize = (m_devImp->m_currentFormat.m_bitPerSample >> 3);
sampleSize *= m_devImp->m_currentFormat.m_channelCount;
while ((byteRecordedSample <= (m_ByteToSample - filled * sampleSize)) &&
m_devImp->m_isRecording) {
alReadFrames(m_devImp->m_port, (void *)(rawData + byteRecordedSample),
filled);
byteRecordedSample += filled * sampleSize;
filled = alGetFilled(m_devImp->m_port);
}
if (m_devImp->m_isRecording) {
alReadFrames(m_devImp->m_port, (void *)(rawData + byteRecordedSample),
(m_ByteToSample - byteRecordedSample) / sampleSize);
while (alGetFillable(m_devImp->m_port) > 0) sginap(1);
}
} else {
while (m_devImp->m_isRecording) {
filled = alGetFilled(m_devImp->m_port);
if (filled > 0) {
char *dataBuffer = new char[filled * m_ByteToSample];
m_devImp->m_recordedBlocks.push_back(dataBuffer);
m_devImp->m_samplePerBlocks.push_back(filled * m_ByteToSample);
alReadFrames(m_devImp->m_port, (void *)dataBuffer, filled);
m_devImp->m_recordedSampleCount += filled;
}
}
while (alGetFillable(m_devImp->m_port) > 0) sginap(1);
}
alClosePort(m_devImp->m_port);
m_devImp->m_port = 0;
m_devImp->m_stopped = true;
}
//==============================================================================
TSoundInputDevice::TSoundInputDevice() : m_imp(new TSoundInputDeviceImp) {}
//------------------------------------------------------------------------------
TSoundInputDevice::~TSoundInputDevice() {
if (m_imp->m_port) alClosePort(m_imp->m_port);
delete m_imp;
}
//------------------------------------------------------------------------------
bool TSoundInputDevice::installed() {
if (alQueryValues(AL_SYSTEM, AL_DEFAULT_INPUT, 0, 0, 0, 0) <= 0) return false;
return true;
}
//------------------------------------------------------------------------------
void TSoundInputDevice::record(const TSoundTrackFormat &format,
TSoundInputDevice::Source type) {
if (m_imp->m_isRecording == true)
throw TSoundDeviceException(TSoundDeviceException::Busy,
"Just another recoding is in progress");
m_imp->m_recordedBlocks.clear();
m_imp->m_samplePerBlocks.clear();
// registra creando una nuova traccia
m_imp->m_oneShotRecording = false;
if (!setDefaultInput(type))
throw TSoundDeviceException(TSoundDeviceException::UnableSetDevice,
"Error to set the input device");
m_imp->insertAllRate();
TSoundTrackFormat fmt;
try {
fmt = getPreferredFormat(format);
if (fmt != format) {
throw TSoundDeviceException(TSoundDeviceException::UnsupportedFormat,
"Unsupported Format");
}
} catch (TSoundDeviceException &e) {
throw TSoundDeviceException(TSoundDeviceException::UnsupportedFormat,
e.getMessage());
}
if (!m_imp->m_port) m_imp->doOpenDevice(format, type);
m_imp->m_currentFormat = format;
m_imp->m_isRecording = true;
m_imp->m_stopped = false;
m_imp->m_recordedSampleCount = 0;
int bytePerSample = format.m_bitPerSample >> 3;
switch (bytePerSample) {
case 3:
bytePerSample++;
break;
default:
break;
}
bytePerSample *= format.m_channelCount;
// far partire il thread
/*TRecordThread *recordThread = new TRecordThread(m_imp, bytePerSample);
if (!recordThread)
{
m_imp->m_isRecording = false;
m_imp->m_stopped = true;
throw TSoundDeviceException(
TSoundDeviceException::UnablePrepare,
"Unable to create the recording thread");
}
recordThread->start();*/
m_imp->m_executor.addTask(new RecordTask(m_imp, bytePerSample));
}
//------------------------------------------------------------------------------
void TSoundInputDevice::record(const TSoundTrackP &st,
TSoundInputDevice::Source type) {
if (m_imp->m_isRecording == true)
throw TSoundDeviceException(TSoundDeviceException::Busy,
"Just another recoding is in progress");
m_imp->m_recordedBlocks.clear();
m_imp->m_samplePerBlocks.clear();
if (!setDefaultInput(type))
throw TSoundDeviceException(TSoundDeviceException::UnableSetDevice,
"Error to set the input device");
m_imp->insertAllRate();
TSoundTrackFormat fmt;
try {
fmt = getPreferredFormat(st->getFormat());
if (fmt != st->getFormat()) {
throw TSoundDeviceException(TSoundDeviceException::UnsupportedFormat,
"Unsupported Format");
}
} catch (TSoundDeviceException &e) {
throw TSoundDeviceException(TSoundDeviceException::UnsupportedFormat,
e.getMessage());
}
if (!m_imp->m_port)
if (!m_imp->doOpenDevice(st->getFormat(), type))
throw TSoundDeviceException(TSoundDeviceException::UnableOpenDevice,
"Unable to open input device");
// Sovrascive un'intera o parte di traccia gia' esistente
m_imp->m_oneShotRecording = true;
m_imp->m_currentFormat = st->getFormat();
m_imp->m_isRecording = true;
m_imp->m_stopped = false;
m_imp->m_recordedSampleCount = 0;
m_imp->m_st = st;
m_imp->m_recordedBlocks.push_back((char *)st->getRawData());
int totByteToSample = st->getSampleCount() * st->getSampleSize();
// far partire il thread
/*TRecordThread *recordThread = new TRecordThread(m_imp, totByteToSample);
if (!recordThread)
{
m_imp->m_isRecording = false;
m_imp->m_stopped = true;
throw TSoundDeviceException(
TSoundDeviceException::UnablePrepare,
"Unable to create the recording thread");
}
recordThread->start();*/
m_imp->m_executor.addTask(new RecordTask(m_imp, totByteToSample));
}
//------------------------------------------------------------------------------
TSoundTrackP TSoundInputDevice::stop() {
TSoundTrackP st;
if (!m_imp->m_isRecording)
throw TSoundDeviceException(TSoundDeviceException::UnablePrepare,
"No recording process is in execution");
m_imp->m_isRecording = false;
alDiscardFrames(m_imp->m_port, alGetFilled(m_imp->m_port));
while (!m_imp->m_stopped) sginap(1);
if (m_imp->m_oneShotRecording)
st = m_imp->m_st;
else {
st = TSoundTrack::create(m_imp->m_currentFormat,
m_imp->m_recordedSampleCount);
TINT32 bytesCopied = 0;
for (int i = 0; i < (int)m_imp->m_recordedBlocks.size(); ++i) {
memcpy((void *)(st->getRawData() + bytesCopied),
m_imp->m_recordedBlocks[i], m_imp->m_samplePerBlocks[i]);
delete[] m_imp->m_recordedBlocks[i];
bytesCopied += m_imp->m_samplePerBlocks[i];
}
m_imp->m_samplePerBlocks.clear();
}
return st;
}
//------------------------------------------------------------------------------
double TSoundInputDevice::getVolume() {
ALpv pv[1];
ALfixed value[2];
try {
supportsVolume();
} catch (TSoundDeviceException &e) {
throw TSoundDeviceException(e.getType(), e.getMessage());
}
pv[0].param = AL_GAIN;
pv[0].value.ptr = value;
pv[0].sizeIn = 8;
alGetParams(AL_DEFAULT_INPUT, pv, 1);
double val =
(((alFixedToDouble(value[0]) + alFixedToDouble(value[1])) / 2.) + 60.) /
8.05;
return val;
}
//------------------------------------------------------------------------------
bool TSoundInputDevice::setVolume(double volume) {
ALpv pv[1];
ALfixed value[2];
try {
supportsVolume();
} catch (TSoundDeviceException &e) {
throw TSoundDeviceException(e.getType(), e.getMessage());
}
double val = -60. + 8.05 * volume;
value[0] = alDoubleToFixed(val);
value[1] = alDoubleToFixed(val);
pv[0].param = AL_GAIN;
pv[0].value.ptr = value;
pv[0].sizeIn = 8;
alSetParams(AL_DEFAULT_INPUT, pv, 1);
return true;
}
//------------------------------------------------------------------------------
bool TSoundInputDevice::supportsVolume() {
ALparamInfo pinfo;
int ret;
ret = alGetParamInfo(AL_DEFAULT_INPUT, AL_GAIN, &pinfo);
double min = alFixedToDouble(pinfo.min.ll);
double max = alFixedToDouble(pinfo.max.ll);
if ((ret != -1) && (min != max) && (max != 0.0))
return true;
else if ((ret == AL_BAD_PARAM) || ((min == max) && (max == 0.0)))
throw TSoundDeviceException(TSoundDeviceException::UnableVolume,
"It is impossible to chamge setting of volume");
else
throw TSoundDeviceException(TSoundDeviceException::NoMixer,
"Output device is not accessible");
}
//------------------------------------------------------------------------------
TSoundTrackFormat TSoundInputDevice::getPreferredFormat(ULONG sampleRate,
int channelCount,
int bitPerSample) {
TSoundTrackFormat fmt;
int ret;
if (!m_imp->verifyRate())
throw TSoundDeviceException(TSoundDeviceException::UnsupportedFormat,
"There isn't any support rate");
if (m_imp->m_supportedRate.find((int)sampleRate) ==
m_imp->m_supportedRate.end()) {
std::set<int>::iterator it =
m_imp->m_supportedRate.lower_bound((int)sampleRate);
if (it == m_imp->m_supportedRate.end()) {
it = std::max_element(m_imp->m_supportedRate.begin(),
m_imp->m_supportedRate.end());
if (it != m_imp->m_supportedRate.end())
sampleRate = *(m_imp->m_supportedRate.rbegin());
else
throw TSoundDeviceException(TSoundDeviceException::UnsupportedFormat,
"There isn't a supported rate");
} else
sampleRate = *it;
}
int value;
ALvalue vals[32];
if ((ret = alQueryValues(AL_DEFAULT_INPUT, AL_CHANNELS, vals, 32, 0, 0)) > 0)
for (int i = 0; i < ret; ++i) value = vals[i].i;
else if (oserror() == AL_BAD_PARAM)
throw TSoundDeviceException(
TSoundDeviceException::NoMixer,
"It is impossible ask for the max nembers of channels supported");
else
throw TSoundDeviceException(
TSoundDeviceException::NoMixer,
"It is impossibile information about ouput device");
if (value > 2) value = 2;
if (channelCount > value)
channelCount = value;
else if (channelCount <= 0)
channelCount = 1;
if (bitPerSample <= 8)
bitPerSample = 8;
else if (bitPerSample <= 16)
bitPerSample = 16;
else
bitPerSample = 24;
fmt.m_bitPerSample = bitPerSample;
fmt.m_channelCount = channelCount;
fmt.m_sampleRate = sampleRate;
fmt.m_signedSample = true;
return fmt;
}
//------------------------------------------------------------------------------
TSoundTrackFormat TSoundInputDevice::getPreferredFormat(
const TSoundTrackFormat &format) {
try {
return getPreferredFormat(format.m_sampleRate, format.m_channelCount,
format.m_bitPerSample);
} catch (TSoundDeviceException &e) {
throw TSoundDeviceException(e.getType(), e.getMessage());
}
}
//------------------------------------------------------------------------------
bool TSoundInputDevice::isRecording() { return m_imp->m_isRecording; }
//******************************************************************************
//******************************************************************************
// funzioni per l'interazione con
// la
// libreria
// audio
//******************************************************************************
//******************************************************************************
namespace {
bool isInterfaceSupported(int deviceType, int interfaceType) {
ALvalue vals[16];
int devNum;
if ((devNum = alQueryValues(AL_SYSTEM, deviceType, vals, 16, 0, 0)) > 0) {
int i;
for (i = 0; i < devNum; ++i) {
ALpv quals[2];
quals[0].param = AL_TYPE;
quals[0].value.i = interfaceType;
if (alQueryValues(vals[i].i, AL_INTERFACE, 0, 0, quals, 1) > 0)
return true;
}
}
return false;
}
//------------------------------------------------------------------------------
bool setDefaultInput(TSoundInputDevice::Source type) {
string label;
switch (type) {
case TSoundInputDevice::LineIn:
label = "Line In";
break;
case TSoundInputDevice::DigitalIn:
label = "AES Input";
break;
default:
label = "Microphone";
}
int dev =
alGetResourceByName(AL_SYSTEM, (char *)label.c_str(), AL_DEVICE_TYPE);
if (!dev) return false; // throw TException("Error to set input device");
int itf;
if (itf = alGetResourceByName(AL_SYSTEM, (char *)label.c_str(),
AL_INTERFACE_TYPE)) {
ALpv p;
p.param = AL_INTERFACE;
p.value.i = itf;
if (alSetParams(dev, &p, 1) < 0 || p.sizeOut < 0)
return false; // throw TException("Error to set input device");
}
ALpv param;
param.param = AL_DEFAULT_INPUT;
param.value.i = dev;
if (alSetParams(AL_SYSTEM, ¶m, 1) < 0)
return false; // throw TException("Error to set input device");
return true;
}
//------------------------------------------------------------------------------
bool setDefaultOutput() {
ALpv pvbuf[1];
if (!isInterfaceSupported(AL_DEFAULT_OUTPUT, AL_SPEAKER_IF_TYPE))
return false; // throw TException("Speakers are not supported");
int dev = alGetResourceByName(AL_SYSTEM, (char *)"Headphone/Speaker",
AL_DEVICE_TYPE);
if (!dev) return false; // throw TException("invalid device speakers");
pvbuf[0].param = AL_DEFAULT_OUTPUT;
pvbuf[0].value.i = dev;
alSetParams(AL_SYSTEM, pvbuf, 1);
// qui devo metterci gli altoparlanti e poi setto i valori per il default
// output
pvbuf[0].param = AL_INTERFACE;
pvbuf[0].value.i = AL_SPEAKER_IF_TYPE;
if (alSetParams(AL_DEFAULT_OUTPUT, pvbuf, 1) < 0)
return false; // throw TException("Unable to set output device params");
return true;
}
//------------------------------------------------------------------------------
// return the indexes of all input device of a particular type
list<int> getInputDevice(int deviceType) {
ALvalue vals[16];
ALpv quals[1];
list<int> devList;
int devNum;
quals[0].param = AL_TYPE;
quals[0].value.i = deviceType;
if ((devNum = alQueryValues(AL_SYSTEM, AL_DEFAULT_INPUT, vals, 16, quals,
1)) > 0) {
int i;
for (i = 0; i < devNum; ++i) {
int itf;
ALvalue val[16];
if ((itf = alQueryValues(i, AL_INTERFACE, val, 16, 0, 0)) > 0) {
int j;
for (j = 0; j < itf; ++j) devList.push_back(vals[j].i);
}
}
}
return devList;
}
//------------------------------------------------------------------------------
// return the indexes of all input device of a particular type and interface
list<int> getInputDevice(int deviceType, int itfType) {
ALvalue vals[16];
ALpv quals[1];
list<int> devList;
int devNum;
quals[0].param = AL_TYPE;
quals[0].value.i = deviceType;
if ((devNum = alQueryValues(AL_SYSTEM, AL_DEFAULT_INPUT, vals, 16, quals,
1)) > 0) {
int i;
for (i = 0; i < devNum; ++i) {
int itf;
ALvalue val[16];
quals[0].param = AL_TYPE;
quals[0].value.i = itfType;
if ((itf = alQueryValues(i, AL_INTERFACE, val, 16, quals, 1)) > 0) {
int j;
for (j = 0; j < itf; ++j) devList.push_back(vals[j].i);
}
}
}
return devList;
}
//------------------------------------------------------------------------------
string getResourceLabel(int resourceID) {
ALpv par[1];
char l[32];
par[0].param = AL_LABEL;
par[0].value.ptr = l;
par[0].sizeIn = 32;
alGetParams(resourceID, par, 1);
return string(l);
}
//------------------------------------------------------------------------------
// verify the samplerate of the select device is changed from another
// application
bool isChangeOutput(ULONG sampleRate) {
ALpv par[2];
char l[32];
par[0].param = AL_LABEL;
par[0].value.ptr = l;
par[0].sizeIn = 32;
par[1].param = AL_RATE;
alGetParams(AL_DEFAULT_OUTPUT, par, 2);
if ((strcmp(l, "Analog Out") != 0) ||
(alFixedToDouble(par[1].value.ll) != sampleRate))
return true;
else
return false;
}
}