qint64 QAlsaAudioInput::read(char* data, qint64 len)
{
// Read in some audio data and write it to QIODevice, pull mode
if ( !handle )
return 0;
int bytesRead = 0;
int bytesInRingbufferBeforeRead = ringBuffer.bytesOfDataInBuffer();
if (ringBuffer.bytesOfDataInBuffer() < len) {
// bytesAvaiable is saved as a side effect of checkBytesReady().
int bytesToRead = checkBytesReady();
if (bytesToRead < 0) {
// bytesAvailable as negative is error code, try to recover from it.
xrun_recovery(bytesToRead);
bytesToRead = checkBytesReady();
if (bytesToRead < 0) {
// recovery failed must stop and set error.
close();
errorState = QAudio::IOError;
deviceState = QAudio::StoppedState;
emit stateChanged(deviceState);
return 0;
}
}
bytesToRead = qMin<qint64>(len, bytesToRead);
bytesToRead = qMin<qint64>(ringBuffer.freeBytes(), bytesToRead);
bytesToRead -= bytesToRead % period_size;
int count=0;
int err = 0;
while(count < 5 && bytesToRead > 0) {
char buffer[bytesToRead];
int chunks = bytesToRead / period_size;
int frames = chunks * period_frames;
if (frames > (int)buffer_frames)
frames = buffer_frames;
int readFrames = snd_pcm_readi(handle, buffer, frames);
bytesRead = snd_pcm_frames_to_bytes(handle, readFrames);
if (m_volume < 1.0f)
QAudioHelperInternal::qMultiplySamples(m_volume, settings, buffer, buffer, bytesRead);
if (readFrames >= 0) {
ringBuffer.write(buffer, bytesRead);
#ifdef DEBUG_AUDIO
qDebug() << QString::fromLatin1("read in bytes = %1 (frames=%2)").arg(bytesRead).arg(readFrames).toLatin1().constData();
#endif
break;
} else if((readFrames == -EAGAIN) || (readFrames == -EINTR)) {
errorState = QAudio::IOError;
err = 0;
break;
} else {
if(readFrames == -EPIPE) {
errorState = QAudio::UnderrunError;
err = snd_pcm_prepare(handle);
} else if(readFrames == -ESTRPIPE) {
err = snd_pcm_prepare(handle);
}
if(err != 0) break;
}
count++;
}
}
bytesRead += bytesInRingbufferBeforeRead;
if (bytesRead > 0) {
// got some send it onward
#ifdef DEBUG_AUDIO
qDebug() << "frames to write to QIODevice = " <<
snd_pcm_bytes_to_frames( handle, (int)bytesRead ) << " (" << bytesRead << ") bytes";
#endif
if (deviceState != QAudio::ActiveState && deviceState != QAudio::IdleState)
return 0;
if (pullMode) {
qint64 l = 0;
qint64 bytesWritten = 0;
while (ringBuffer.bytesOfDataInBuffer() > 0) {
l = audioSource->write(ringBuffer.availableData(), ringBuffer.availableDataBlockSize());
if (l > 0) {
ringBuffer.readBytes(l);
bytesWritten += l;
} else {
break;
}
}
if (l < 0) {
close();
errorState = QAudio::IOError;
deviceState = QAudio::StoppedState;
emit stateChanged(deviceState);
} else if (l == 0 && bytesWritten == 0) {
if (deviceState != QAudio::IdleState) {
errorState = QAudio::NoError;
deviceState = QAudio::IdleState;
emit stateChanged(deviceState);
}
} else {
bytesAvailable -= bytesWritten;
totalTimeValue += bytesWritten;
resuming = false;
if (deviceState != QAudio::ActiveState) {
errorState = QAudio::NoError;
deviceState = QAudio::ActiveState;
emit stateChanged(deviceState);
}
}
return bytesWritten;
} else {
while (ringBuffer.bytesOfDataInBuffer() > 0) {
int size = ringBuffer.availableDataBlockSize();
memcpy(data, ringBuffer.availableData(), size);
data += size;
ringBuffer.readBytes(size);
}
bytesAvailable -= bytesRead;
totalTimeValue += bytesRead;
resuming = false;
if (deviceState != QAudio::ActiveState) {
errorState = QAudio::NoError;
deviceState = QAudio::ActiveState;
emit stateChanged(deviceState);
}
return bytesRead;
}
}
return 0;
}
bool
play_pcm_buffer (playable_pcm_buffer_t *buffer)
{
int status;
snd_pcm_t *handle;
snd_pcm_format_t format;
snd_pcm_sframes_t frames_wrote;
int frames_count;
size_t bytes_handled;
size_t bytes_to_write;
format = determine_pcm_format (&(buffer->info));
if (format == SND_PCM_FORMAT_UNKNOWN)
{
fprintf (stderr, "%s: Unable to determine the beep's PCM data format.\n",
progname);
return false;
}
status = snd_pcm_open (&handle, "default", SND_PCM_STREAM_PLAYBACK, 0);
if (status < 0)
{
fprintf (stderr, "%s: Failed to open the playback device: %s\n",
progname, snd_strerror (status));
return false;
}
status = snd_pcm_set_params (handle, format, SND_PCM_ACCESS_RW_INTERLEAVED,
buffer->info.channels, buffer->info.sample_rate,
1, /* soft_resample */
0); /* latency (us).*/
if (status < 0)
{
fprintf (stderr, "%s: Failed to configure the playback device: %s.\n",
progname, snd_strerror (status));
snd_pcm_close (handle);
return false;
}
bytes_handled = 0;
while (bytes_handled < buffer->data_len)
{
if (buffer->data_len - bytes_handled < BUFSIZ)
bytes_to_write = buffer->data_len - bytes_handled;
else
bytes_to_write = BUFSIZ;
frames_count = snd_pcm_bytes_to_frames (handle, bytes_to_write);
frames_wrote = snd_pcm_writei (handle, buffer->data + bytes_handled,
frames_count);
if (frames_wrote < 0)
frames_wrote = snd_pcm_recover (handle, frames_wrote, 0);
if (frames_wrote < 0)
{
fprintf (stderr, "%s: Writing to the playback device failed: %s.\n",
progname, snd_strerror (frames_wrote));
snd_pcm_close (handle);
return false;
}
if (frames_wrote > 0 && frames_wrote < frames_count)
{
fprintf (stderr, "%s: Warning: Wrote only %ld frames instead of the "
"expected %d to the playback device.\n",
progname, frames_wrote, frames_count);
}
bytes_handled += bytes_to_write;
}
snd_pcm_drain (handle);
snd_pcm_close (handle);
return true;
}
ssize_t AudioStreamOutALSA::write(const void *buffer, size_t bytes)
{
AutoMutex lock(mLock);
if (!mPowerLock) {
acquire_wake_lock (PARTIAL_WAKE_LOCK, "AudioOutLock");
mPowerLock = true;
usleep(35000); //201104011 [email protected], fix sound tick noise from global B
}
/* check if handle is still valid, otherwise we are coming out of standby */
if(mHandle->handle == NULL) {
nsecs_t previously = systemTime();
mHandle->module->open(mHandle, mHandle->curDev, mHandle->curMode, mHandle->curChannels);
nsecs_t delta = systemTime() - previously;
LOGE("RE-OPEN AFTER STANDBY:: took %llu msecs\n", ns2ms(delta));
}
acoustic_device_t *aDev = acoustics();
// For output, we will pass the data on to the acoustics module, but the actual
// data is expected to be sent to the audio device directly as well.
if (aDev && aDev->write)
aDev->write(aDev, buffer, bytes);
snd_pcm_sframes_t n;
size_t sent = 0;
status_t err;
while (mHandle->handle && sent < bytes) {
n = snd_pcm_writei(mHandle->handle,
(char *)buffer + sent,
snd_pcm_bytes_to_frames(mHandle->handle, bytes - sent));
if (n == -EBADFD) {
// Somehow the stream is in a bad state. The driver probably
// has a bug and snd_pcm_recover() doesn't seem to handle this.
mHandle->module->open(mHandle, mHandle->curDev, mHandle->curMode, mHandle->curChannels);
if (aDev && aDev->recover) aDev->recover(aDev, n);
}
else if (n < 0) {
if (mHandle->handle) {
// snd_pcm_recover() will return 0 if successful in recovering from
// an error, or -errno if the error was unrecoverable.
n = snd_pcm_recover(mHandle->handle, n, 1);
if (aDev && aDev->recover) aDev->recover(aDev, n);
if (n) return static_cast<ssize_t>(n);
}
}
else {
if (mHandle->handle) {
mFrameCount += n;
sent += static_cast<ssize_t>(snd_pcm_frames_to_bytes(mHandle->handle, n));
}
}
}
return sent;
}
/**************************************************************************
* widRecorder [internal]
*/
static DWORD CALLBACK widRecorder(LPVOID pmt)
{
WORD uDevID = (DWORD_PTR)pmt;
WINE_WAVEDEV* wwi = &WInDev[uDevID];
WAVEHDR* lpWaveHdr;
DWORD dwSleepTime;
DWORD bytesRead;
enum win_wm_message msg;
DWORD_PTR param;
HANDLE ev;
DWORD frames_per_period;
wwi->state = WINE_WS_STOPPED;
InterlockedExchange((LONG*)&wwi->dwTotalRecorded, 0);
wwi->lpQueuePtr = NULL;
SetEvent(wwi->hStartUpEvent);
/* make sleep time to be # of ms to output a period */
dwSleepTime = (wwi->dwPeriodSize * 1000) / wwi->format.Format.nAvgBytesPerSec;
frames_per_period = snd_pcm_bytes_to_frames(wwi->pcm, wwi->dwPeriodSize);
TRACE("sleeptime=%d ms, total buffer length=%d ms (%d bytes)\n", dwSleepTime, wwi->dwBufferSize * 1000 / wwi->format.Format.nAvgBytesPerSec, wwi->dwBufferSize);
for (;;) {
/* wait for dwSleepTime or an event in thread's queue */
if (wwi->lpQueuePtr != NULL && wwi->state == WINE_WS_PLAYING)
{
DWORD frames;
DWORD bytes;
DWORD read;
lpWaveHdr = wwi->lpQueuePtr;
/* read all the fragments accumulated so far */
frames = snd_pcm_avail_update(wwi->pcm);
bytes = snd_pcm_frames_to_bytes(wwi->pcm, frames);
TRACE("frames = %d bytes = %d state=%d\n", frames, bytes, snd_pcm_state(wwi->pcm));
if (snd_pcm_state(wwi->pcm) == SND_PCM_STATE_XRUN)
{
FIXME("Recovering from XRUN!\n");
snd_pcm_prepare(wwi->pcm);
frames = snd_pcm_avail_update(wwi->pcm);
bytes = snd_pcm_frames_to_bytes(wwi->pcm, frames);
snd_pcm_start(wwi->pcm);
snd_pcm_forward(wwi->pcm, frames - snd_pcm_bytes_to_frames(wwi->pcm, wwi->dwPeriodSize));
continue;
}
while (frames > 0 && wwi->lpQueuePtr)
{
TRACE("bytes = %d\n", bytes);
if (lpWaveHdr->dwBufferLength - lpWaveHdr->dwBytesRecorded < bytes)
{
bytes = lpWaveHdr->dwBufferLength - lpWaveHdr->dwBytesRecorded;
frames = snd_pcm_bytes_to_frames(wwi->pcm, bytes);
}
/* directly read fragment in wavehdr */
read = wwi->read(wwi->pcm, lpWaveHdr->lpData + lpWaveHdr->dwBytesRecorded, frames);
bytesRead = snd_pcm_frames_to_bytes(wwi->pcm, read);
TRACE("bytesRead=(%d(%d)/(%d)) -> (%d/%d)\n", bytesRead, read, frames, lpWaveHdr->dwBufferLength, lpWaveHdr->dwBufferLength - lpWaveHdr->dwBytesRecorded);
if (read != (DWORD) -1)
{
/* update number of bytes recorded in current buffer and by this device */
lpWaveHdr->dwBytesRecorded += bytesRead;
InterlockedExchangeAdd((LONG*)&wwi->dwTotalRecorded, bytesRead);
frames -= read;
bytes -= bytesRead;
/* buffer is full. notify client */
if (!snd_pcm_bytes_to_frames(wwi->pcm, lpWaveHdr->dwBytesRecorded - lpWaveHdr->dwBufferLength))
{
/* must copy the value of next waveHdr, because we have no idea of what
* will be done with the content of lpWaveHdr in callback
*/
LPWAVEHDR lpNext = lpWaveHdr->lpNext;
lpWaveHdr->dwFlags &= ~WHDR_INQUEUE;
lpWaveHdr->dwFlags |= WHDR_DONE;
wwi->lpQueuePtr = lpNext;
widNotifyClient(wwi, WIM_DATA, (DWORD_PTR)lpWaveHdr, 0);
lpWaveHdr = lpNext;
}
} else {
WARN("read(%s, %p, %d) failed (%d/%s)\n", wwi->pcmname,
lpWaveHdr->lpData + lpWaveHdr->dwBytesRecorded,
frames, frames, snd_strerror(read));
}
}
}
ALSA_WaitRingMessage(&wwi->msgRing, dwSleepTime);
while (ALSA_RetrieveRingMessage(&wwi->msgRing, &msg, ¶m, &ev))
{
TRACE("msg=%s param=0x%lx\n", ALSA_getCmdString(msg), param);
switch (msg) {
case WINE_WM_PAUSING:
wwi->state = WINE_WS_PAUSED;
/*FIXME("Device should stop recording\n");*/
SetEvent(ev);
break;
case WINE_WM_STARTING:
wwi->state = WINE_WS_PLAYING;
snd_pcm_start(wwi->pcm);
SetEvent(ev);
break;
case WINE_WM_HEADER:
lpWaveHdr = (LPWAVEHDR)param;
lpWaveHdr->lpNext = 0;
/* insert buffer at the end of queue */
{
LPWAVEHDR* wh;
for (wh = &(wwi->lpQueuePtr); *wh; wh = &((*wh)->lpNext));
*wh = lpWaveHdr;
}
break;
case WINE_WM_STOPPING:
if (wwi->state != WINE_WS_STOPPED)
{
snd_pcm_drain(wwi->pcm);
/* read any headers in queue */
widRecorder_ReadHeaders(wwi);
/* return current buffer to app */
lpWaveHdr = wwi->lpQueuePtr;
if (lpWaveHdr)
{
LPWAVEHDR lpNext = lpWaveHdr->lpNext;
TRACE("stop %p %p\n", lpWaveHdr, lpWaveHdr->lpNext);
lpWaveHdr->dwFlags &= ~WHDR_INQUEUE;
lpWaveHdr->dwFlags |= WHDR_DONE;
wwi->lpQueuePtr = lpNext;
widNotifyClient(wwi, WIM_DATA, (DWORD_PTR)lpWaveHdr, 0);
}
}
wwi->state = WINE_WS_STOPPED;
SetEvent(ev);
break;
case WINE_WM_RESETTING:
if (wwi->state != WINE_WS_STOPPED)
{
snd_pcm_drain(wwi->pcm);
}
wwi->state = WINE_WS_STOPPED;
wwi->dwTotalRecorded = 0;
/* read any headers in queue */
widRecorder_ReadHeaders(wwi);
/* return all buffers to the app */
while (wwi->lpQueuePtr) {
lpWaveHdr = wwi->lpQueuePtr;
TRACE("reset %p %p\n", lpWaveHdr, lpWaveHdr->lpNext);
wwi->lpQueuePtr = lpWaveHdr->lpNext;
lpWaveHdr->dwFlags &= ~WHDR_INQUEUE;
lpWaveHdr->dwFlags |= WHDR_DONE;
widNotifyClient(wwi, WIM_DATA, (DWORD_PTR)lpWaveHdr, 0);
}
SetEvent(ev);
break;
case WINE_WM_CLOSING:
wwi->hThread = 0;
wwi->state = WINE_WS_CLOSED;
SetEvent(ev);
ExitThread(0);
/* shouldn't go here */
default:
FIXME("unknown message %d\n", msg);
break;
}
}
}
ExitThread(0);
/* just for not generating compilation warnings... should never be executed */
return 0;
}
bool
play_pcm_file (playable_pcm_file_t *file)
{
int status;
snd_pcm_t *handle;
snd_pcm_format_t format;
snd_pcm_sframes_t frames_wrote;
uint8_t playback_buf[BUFSIZ];
int frames_count;
size_t read_bytes;
format = determine_pcm_format (&(file->info));
if (format == SND_PCM_FORMAT_UNKNOWN)
{
fprintf (stderr, "%s: Unable to determine the beep's PCM data format.\n",
progname);
return false;
}
if (fsetpos (file->stream, &(file->pcm_start_pos)) != 0)
{
fprintf (stderr, "%s: Failed to seek to the PCM data of `%s': %s.\n",
progname, file->name, strerror (errno));
return false;
}
status = snd_pcm_open (&handle, "default", SND_PCM_STREAM_PLAYBACK, 0);
if (status < 0)
{
fprintf (stderr, "%s: Failed to open the playback device: %s\n",
progname, snd_strerror (status));
return false;
}
status = snd_pcm_set_params (handle, format, SND_PCM_ACCESS_RW_INTERLEAVED,
file->info.channels, file->info.sample_rate,
1, /* soft_resample */
0); /* latency (us).*/
if (status < 0)
{
fprintf (stderr, "%s: Failed to configure the playback device: %s.\n",
progname, snd_strerror (status));
snd_pcm_close (handle);
return false;
}
while (true)
{
read_bytes = fread (playback_buf, 1, BUFSIZ, file->stream);
if (read_bytes == 0)
{
if (ferror (file->stream))
{
fprintf (stderr, "%s: An error occured while reading from `%s': %s.\n",
progname, file->name, strerror (errno));
snd_pcm_close (handle);
return false;
}
break;
}
frames_count = snd_pcm_bytes_to_frames (handle, read_bytes);
frames_wrote = snd_pcm_writei (handle, playback_buf, frames_count);
if (frames_wrote < 0)
frames_wrote = snd_pcm_recover (handle, frames_wrote, 0);
if (frames_wrote < 0)
{
fprintf (stderr, "%s: Writing to the playback device failed: %s.\n",
progname, snd_strerror (frames_wrote));
snd_pcm_close (handle);
return false;
}
if (frames_wrote > 0 && frames_wrote < frames_count)
{
fprintf (stderr, "%s: Warning: Wrote only %ld frames instead of the "
"expected %d to the playback device.\n",
progname, frames_wrote, frames_count);
}
}
snd_pcm_drain (handle);
snd_pcm_close (handle);
return true;
}
static ALCenum alsa_capture_samples(ALCdevice *Device, ALCvoid *Buffer, ALCuint Samples)
{
alsa_data *data = (alsa_data*)Device->ExtraData;
if(data->ring)
{
ReadRingBuffer(data->ring, Buffer, Samples);
return ALC_NO_ERROR;
}
data->last_avail -= Samples;
while(Device->Connected && Samples > 0)
{
snd_pcm_sframes_t amt = 0;
if(data->size > 0)
{
/* First get any data stored from the last stop */
amt = snd_pcm_bytes_to_frames(data->pcmHandle, data->size);
if((snd_pcm_uframes_t)amt > Samples) amt = Samples;
amt = snd_pcm_frames_to_bytes(data->pcmHandle, amt);
memmove(Buffer, data->buffer, amt);
if(data->size > amt)
{
memmove(data->buffer, data->buffer+amt, data->size - amt);
data->size -= amt;
}
else
{
free(data->buffer);
data->buffer = NULL;
data->size = 0;
}
amt = snd_pcm_bytes_to_frames(data->pcmHandle, amt);
}
else if(data->doCapture)
amt = snd_pcm_readi(data->pcmHandle, Buffer, Samples);
if(amt < 0)
{
ERR("read error: %s\n", snd_strerror(amt));
if(amt == -EAGAIN)
continue;
if((amt=snd_pcm_recover(data->pcmHandle, amt, 1)) >= 0)
{
amt = snd_pcm_start(data->pcmHandle);
if(amt >= 0)
amt = snd_pcm_avail_update(data->pcmHandle);
}
if(amt < 0)
{
ERR("restore error: %s\n", snd_strerror(amt));
aluHandleDisconnect(Device);
break;
}
/* If the amount available is less than what's asked, we lost it
* during recovery. So just give silence instead. */
if((snd_pcm_uframes_t)amt < Samples)
break;
continue;
}
Buffer = (ALbyte*)Buffer + amt;
Samples -= amt;
}
if(Samples > 0)
memset(Buffer, ((Device->FmtType == DevFmtUByte) ? 0x80 : 0),
snd_pcm_frames_to_bytes(data->pcmHandle, Samples));
return ALC_NO_ERROR;
}
static ALCuint alsa_available_samples(ALCdevice *Device)
{
alsa_data *data = (alsa_data*)Device->ExtraData;
snd_pcm_sframes_t avail = 0;
if(Device->Connected && data->doCapture)
avail = snd_pcm_avail_update(data->pcmHandle);
if(avail < 0)
{
ERR("avail update failed: %s\n", snd_strerror(avail));
if((avail=snd_pcm_recover(data->pcmHandle, avail, 1)) >= 0)
{
if(data->doCapture)
avail = snd_pcm_start(data->pcmHandle);
if(avail >= 0)
avail = snd_pcm_avail_update(data->pcmHandle);
}
if(avail < 0)
{
ERR("restore error: %s\n", snd_strerror(avail));
aluHandleDisconnect(Device);
}
}
if(!data->ring)
{
if(avail < 0) avail = 0;
avail += snd_pcm_bytes_to_frames(data->pcmHandle, data->size);
if(avail > data->last_avail) data->last_avail = avail;
return data->last_avail;
}
while(avail > 0)
{
snd_pcm_sframes_t amt;
amt = snd_pcm_bytes_to_frames(data->pcmHandle, data->size);
if(avail < amt) amt = avail;
amt = snd_pcm_readi(data->pcmHandle, data->buffer, amt);
if(amt < 0)
{
ERR("read error: %s\n", snd_strerror(amt));
if(amt == -EAGAIN)
continue;
if((amt=snd_pcm_recover(data->pcmHandle, amt, 1)) >= 0)
{
if(data->doCapture)
amt = snd_pcm_start(data->pcmHandle);
if(amt >= 0)
amt = snd_pcm_avail_update(data->pcmHandle);
}
if(amt < 0)
{
ERR("restore error: %s\n", snd_strerror(amt));
aluHandleDisconnect(Device);
break;
}
avail = amt;
continue;
}
WriteRingBuffer(data->ring, data->buffer, amt);
avail -= amt;
}
return RingBufferSize(data->ring);
}
qint64 QAudioInputPrivate::read(char* data, qint64 len)
{
// Read in some audio data and write it to QIODevice, pull mode
if ( !handle )
return 0;
// bytesAvaiable is saved as a side effect of checkBytesReady().
int bytesToRead = checkBytesReady();
if (bytesToRead < 0) {
// bytesAvailable as negative is error code, try to recover from it.
xrun_recovery(bytesToRead);
bytesToRead = checkBytesReady();
if (bytesToRead < 0) {
// recovery failed must stop and set error.
close();
errorState = QAudio::IOError;
deviceState = QAudio::StoppedState;
emit stateChanged(deviceState);
return 0;
}
}
bytesToRead = qMin<qint64>(len, bytesToRead);
bytesToRead -= bytesToRead % period_size;
int count=0, err = 0;
while(count < 5) {
int chunks = bytesToRead/period_size;
int frames = chunks*period_frames;
if(frames > (int)buffer_frames)
frames = buffer_frames;
int readFrames = snd_pcm_readi(handle, audioBuffer, frames);
if (readFrames >= 0) {
err = snd_pcm_frames_to_bytes(handle, readFrames);
#ifdef DEBUG_AUDIO
qDebug()<<QString::fromLatin1("read in bytes = %1 (frames=%2)").arg(err).arg(readFrames).toLatin1().constData();
#endif
break;
} else if((readFrames == -EAGAIN) || (readFrames == -EINTR)) {
errorState = QAudio::IOError;
err = 0;
break;
} else {
if(readFrames == -EPIPE) {
errorState = QAudio::UnderrunError;
err = snd_pcm_prepare(handle);
} else if(readFrames == -ESTRPIPE) {
err = snd_pcm_prepare(handle);
}
if(err != 0) break;
}
count++;
}
if(err > 0) {
// got some send it onward
#ifdef DEBUG_AUDIO
qDebug()<<"frames to write to QIODevice = "<<
snd_pcm_bytes_to_frames( handle, (int)err )<<" ("<<err<<") bytes";
#endif
if(deviceState != QAudio::ActiveState && deviceState != QAudio::IdleState)
return 0;
if (pullMode) {
qint64 l = audioSource->write(audioBuffer,err);
if(l < 0) {
close();
errorState = QAudio::IOError;
deviceState = QAudio::StoppedState;
emit stateChanged(deviceState);
} else if(l == 0) {
if (deviceState != QAudio::IdleState) {
errorState = QAudio::NoError;
deviceState = QAudio::IdleState;
emit stateChanged(deviceState);
}
} else {
bytesAvailable -= err;
totalTimeValue += err;
resuming = false;
if (deviceState != QAudio::ActiveState) {
errorState = QAudio::NoError;
deviceState = QAudio::ActiveState;
emit stateChanged(deviceState);
}
}
return l;
} else {
memcpy(data,audioBuffer,err);
bytesAvailable -= err;
totalTimeValue += err;
resuming = false;
if (deviceState != QAudio::ActiveState) {
errorState = QAudio::NoError;
deviceState = QAudio::ActiveState;
emit stateChanged(deviceState);
}
return err;
}
}
return 0;
}
static HRESULT WINAPI IDsDriverBufferImpl_Unlock(PIDSDRIVERBUFFER iface,
LPVOID pvAudio1,DWORD dwLen1,
LPVOID pvAudio2,DWORD dwLen2)
{
IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface;
snd_pcm_uframes_t writepos;
if (!dwLen1)
return DS_OK;
/* **** */
EnterCriticalSection(&This->pcm_crst);
writepos = snd_pcm_bytes_to_frames(This->pcm, (DWORD_PTR)pvAudio1 - (DWORD_PTR)This->mmap_buffer);
if (writepos == This->mmap_pos)
{
const snd_pcm_channel_area_t *areas;
snd_pcm_uframes_t writelen = snd_pcm_bytes_to_frames(This->pcm, dwLen1);
TRACE("Committing data\n");
if (This->mmap)
This->mmap_pos += snd_pcm_mmap_commit(This->pcm, This->mmap_pos, writelen);
else
{
int ret;
ret = snd_pcm_writei(This->pcm, pvAudio1, writelen);
if (ret == -EPIPE)
{
WARN("Underrun occurred\n");
wine_snd_pcm_recover(This->pcm, -EPIPE, 1);
ret = snd_pcm_writei(This->pcm, pvAudio1, writelen);
/* Advance mmap pointer a little to make dsound notice the underrun and respond to it */
if (ret < writelen) WARN("Short write %ld/%d\n", writelen, ret);
This->mmap_pos += This->mmap_commitahead + ret;
This->mmap_pos %= This->mmap_buflen_frames;
}
else if (ret > 0)
This->mmap_pos += ret;
if (ret < 0)
WARN("Committing data: %d / %s (%p %ld)\n", ret, snd_strerror(ret), pvAudio1, writelen);
}
if (This->mmap_pos == This->mmap_buflen_frames)
This->mmap_pos = 0;
if (dwLen2)
{
writelen = snd_pcm_bytes_to_frames(This->pcm, dwLen2);
if (This->mmap)
{
snd_pcm_mmap_begin(This->pcm, &areas, &This->mmap_pos, &writelen);
This->mmap_pos += snd_pcm_mmap_commit(This->pcm, This->mmap_pos, writelen);
}
else
{
int ret;
ret = snd_pcm_writei(This->pcm, pvAudio2, writelen);
if (ret < writelen) WARN("Short write %ld/%d\n", writelen, ret);
This->mmap_pos = ret > 0 ? ret : 0;
}
assert(This->mmap_pos < This->mmap_buflen_frames);
}
}
LeaveCriticalSection(&This->pcm_crst);
/* **** */
return DS_OK;
}
static ssize_t alsa_write(void *data, const void *buf_, size_t size_)
{
alsa_t *alsa = (alsa_t*)data;
const uint8_t *buf = (const uint8_t*)buf_;
bool eagain_retry = true;
snd_pcm_sframes_t written = 0;
snd_pcm_sframes_t size = snd_pcm_bytes_to_frames(alsa->pcm, size_);
while (size)
{
if (!alsa->nonblock)
{
int rc = snd_pcm_wait(alsa->pcm, -1);
if (rc == -EPIPE || rc == -ESTRPIPE || rc == -EINTR)
{
if (snd_pcm_recover(alsa->pcm, rc, 1) < 0)
{
RARCH_ERR("[ALSA]: (#1) Failed to recover from error (%s)\n",
snd_strerror(rc));
return -1;
}
continue;
}
}
snd_pcm_sframes_t frames = snd_pcm_writei(alsa->pcm, buf, size);
if (frames == -EPIPE || frames == -EINTR || frames == -ESTRPIPE)
{
if (snd_pcm_recover(alsa->pcm, frames, 1) < 0)
{
RARCH_ERR("[ALSA]: (#2) Failed to recover from error (%s)\n",
snd_strerror(frames));
return -1;
}
break;
}
else if (frames == -EAGAIN && !alsa->nonblock) // Definitely not supposed to happen.
{
RARCH_WARN("[ALSA]: poll() was signaled, but EAGAIN returned from write.\n"
"Your ALSA driver might be subtly broken.\n");
if (eagain_retry)
{
eagain_retry = false;
continue;
}
else
return written;
}
else if (frames == -EAGAIN) // Expected if we're running nonblock.
{
return written;
}
else if (frames < 0)
{
RARCH_ERR("[ALSA]: Unknown error occured (%s).\n", snd_strerror(frames));
return -1;
}
written += frames;
buf += (frames << 1) * (alsa->has_float ? sizeof(float) : sizeof(int16_t));
size -= frames;
}
return written;
}
ssize_t AudioStreamInALSA::read(void *buffer, ssize_t bytes)
{
AutoMutex lock(mLock);
if (!mPowerLock) {
acquire_wake_lock (PARTIAL_WAKE_LOCK, "AudioInLock");
mPowerLock = true;
}
acoustic_device_t *aDev = acoustics();
// If there is an acoustics module read method, then it overrides this
// implementation (unlike AudioStreamOutALSA write).
if (aDev && aDev->read)
return aDev->read(aDev, buffer, bytes);
snd_pcm_sframes_t n, frames = snd_pcm_bytes_to_frames(mHandle->handle, bytes);
status_t err;
do {
n = snd_pcm_readi(mHandle->handle, buffer, frames);
#ifdef DROPFRAME
#ifdef DROPFRAME2
FrameNumber++;
if (!(FrameNumber % 17) && (FrameNumber <= 1700))
{
n = snd_pcm_readi(mHandle->handle, buffer, frames);
}
if (!(FrameNumber % 176))
{
n = snd_pcm_readi(mHandle->handle, buffer, frames);
}
if (FrameNumber == 1764)
{
FrameNumber = 0;
n = snd_pcm_readi(mHandle->handle, buffer, frames);
}
#else
FrameNumber++;
if (FrameNumber == 624/*137* rane@2012 07 20*/)
{
FrameNumber = 0;
n = snd_pcm_readi(mHandle->handle, buffer, frames);
}
#endif
#endif
if (n < frames) {
if (mHandle->handle) {
if (n < 0) {
n = snd_pcm_recover(mHandle->handle, n, 0);
if (aDev && aDev->recover) aDev->recover(aDev, n);
} else
n = snd_pcm_prepare(mHandle->handle);
}
return static_cast<ssize_t>(n);
}
} while (n == -EAGAIN);
return static_cast<ssize_t>(snd_pcm_frames_to_bytes(mHandle->handle, n));
}
int alsa_play_play(alsa_play_t alsa_play, glc_audio_data_header_t *audio_hdr, char *data)
{
snd_pcm_uframes_t frames, rem;
snd_pcm_sframes_t ret = 0;
unsigned int c;
if (audio_hdr->id != alsa_play->id)
return 0;
if (!alsa_play->pcm) {
glc_log(alsa_play->glc, GLC_ERROR, "alsa_play", "broken stream %d",
alsa_play->id);
return EINVAL;
}
frames = snd_pcm_bytes_to_frames(alsa_play->pcm, audio_hdr->size);
glc_utime_t time = glc_state_time(alsa_play->glc);
glc_utime_t duration = ((glc_utime_t) 1000000000 * (glc_utime_t) frames) /
(glc_utime_t) alsa_play->rate;
if (time + alsa_play->silence_threshold + duration < audio_hdr->time) {
struct timespec ts = {
.tv_sec = (audio_hdr->time - time - duration - alsa_play->silence_threshold)/1000000000,
.tv_nsec = (audio_hdr->time - time - duration - alsa_play->silence_threshold)%1000000000 };
nanosleep(&ts,NULL);
}
/*
* This condition determine what will be the initial audio packet.
* it is preferable to be ahead by < duration/2 than behind
* the video by > duration/2
*/
else if (time > audio_hdr->time + duration/2) {
glc_log(alsa_play->glc, GLC_DEBUG, "alsa_play",
"dropped packet. now %" PRId64 " ts %" PRId64,
time, audio_hdr->time);
return 0;
}
rem = frames;
while (rem > 0) {
/* alsa is horrible... */
/*snd_pcm_wait(alsa_play->pcm, duration);*/
if (alsa_play->flags & GLC_AUDIO_INTERLEAVED)
ret = snd_pcm_writei(alsa_play->pcm,
&data[snd_pcm_frames_to_bytes(alsa_play->pcm, frames - rem)],
rem);
else {
for (c = 0; c < alsa_play->channels; c++)
alsa_play->bufs[c] =
&data[snd_pcm_samples_to_bytes(alsa_play->pcm, frames)
* c + snd_pcm_samples_to_bytes(alsa_play->pcm, frames - rem)];
ret = snd_pcm_writen(alsa_play->pcm, alsa_play->bufs, rem);
}
if (ret == 0)
break;
if ((ret == -EBUSY) || (ret == -EAGAIN))
break;
else if (ret < 0) {
if ((ret = alsa_play_xrun(alsa_play, ret))) {
glc_log(alsa_play->glc, GLC_ERROR, "alsa_play",
"xrun recovery failed: %s", snd_strerror(-ret));
return ret;
}
} else
rem -= ret;
}
return 0;
}
ssize_t AudioStreamOutALSA::write(const void *buffer, size_t bytes)
{
android::AutoMutex lock(mLock);
if (!mPowerLock) {
acquire_wake_lock (PARTIAL_WAKE_LOCK, "AudioOutLock");
mPowerLock = true;
}
acoustic_device_t *aDev = acoustics();
// For output, we will pass the data on to the acoustics module, but the actual
// data is expected to be sent to the audio device directly as well.
if (aDev && aDev->write)
aDev->write(aDev, buffer, bytes);
snd_pcm_sframes_t n;
size_t sent = 0;
status_t err = 0;
do {
if (mHandle->mmap)
n = snd_pcm_mmap_writei(mHandle->handle,
(char *)buffer + sent,
snd_pcm_bytes_to_frames(mHandle->handle, bytes - sent));
else
n = snd_pcm_writei(mHandle->handle,
(char *)buffer + sent,
snd_pcm_bytes_to_frames(mHandle->handle, bytes - sent));
if (n == -EBADFD) {
LOGW("badstate and do recovery.....");
switch(snd_pcm_state(mHandle->handle)){
case SND_PCM_STATE_SETUP:
err = snd_pcm_prepare(mHandle->handle);
if(err < 0) LOGW("snd_pcm_prepare failed");
break;
case SND_PCM_STATE_SUSPENDED:
snd_pcm_resume(mHandle->handle);
if(err < 0) LOGW("snd_pcm_resume failed");
snd_pcm_prepare(mHandle->handle);
if(err < 0) LOGW("snd_pcm_prepare failed");
break;
default:
// Somehow the stream is in a bad state. The driver probably
// has a bug and snd_pcm_recover() doesn't seem to handle this.
mHandle->module->open(mHandle, mHandle->curDev, mHandle->curMode);
break;
}
if(err < 0 ) mHandle->module->open(mHandle, mHandle->curDev, mHandle->curMode);
if (aDev && aDev->recover) aDev->recover(aDev, n);
}
else if (n < 0) {
if (mHandle->handle) {
LOGW("underrun and do recovery.....");
// snd_pcm_recover() will return 0 if successful in recovering from
// an error, or -errno if the error was unrecoverable.
n = snd_pcm_recover(mHandle->handle, n, 1);
if (aDev && aDev->recover) aDev->recover(aDev, n);
if (n) return static_cast<ssize_t>(n);
}
}
else {
mFrameCount += n;
sent += static_cast<ssize_t>(snd_pcm_frames_to_bytes(mHandle->handle, n));
}
} while (mHandle->handle && sent < bytes);
return sent;
}
bool PAPlayer::AddPacketsToStream(int stream, CAudioDecoder &dec)
{
if (!m_pStream[stream] || dec.GetStatus() == STATUS_NO_FILE)
return false;
bool ret = false;
int nAvail = snd_pcm_frames_to_bytes(m_pStream[stream], snd_pcm_avail_update(m_pStream[stream]));
if (nAvail < PACKET_SIZE) {
return false;
}
if (m_resampler[stream].GetData(m_packet[stream][0].packet))
{
// got some data from our resampler - construct audio packet
m_packet[stream][0].length = PACKET_SIZE;
m_packet[stream][0].stream = stream;
unsigned char *pcmPtr = m_packet[stream][0].packet;
// handle volume de-amp
m_amp[stream].DeAmplify((short *)pcmPtr, m_packet[stream][0].length / 2);
StreamCallback(&m_packet[stream][0]);
while ( pcmPtr < m_packet[stream][0].packet + m_packet[stream][0].length) {
int nPeriodSize = snd_pcm_frames_to_bytes(m_pStream[stream],m_periods[stream]);
if ( pcmPtr + nPeriodSize > m_packet[stream][0].packet + m_packet[stream][0].length) {
nPeriodSize = m_packet[stream][0].packet + m_packet[stream][0].length - pcmPtr;
}
int framesToWrite = snd_pcm_bytes_to_frames(m_pStream[stream],nPeriodSize);
int writeResult = snd_pcm_writei(m_pStream[stream], pcmPtr, framesToWrite);
if ( writeResult == -EPIPE ) {
CLog::Log(LOGDEBUG, "PAPlayer::AddPacketsToStream - buffer underun (tried to write %d frames)",
framesToWrite);
int err = snd_pcm_prepare(m_pStream[stream]);
CHECK_ALSA(LOGERROR,"prepare after EPIPE", err);
}
else if (writeResult != framesToWrite) {
CLog::Log(LOGERROR, "PAPlayer::AddPacketsToStream - failed to write %d frames. "
"bad write (err: %d) - %s",
framesToWrite, writeResult, snd_strerror(writeResult));
break;
}
//else
// m_bytesSentOut += nPeriodSize;
pcmPtr += nPeriodSize;
}
// something done
ret = true;
}
else
{ // resampler wants more data - let's feed it
int amount = m_resampler[stream].GetInputSamples();
if (amount > 0 && amount <= (int)dec.GetDataSize())
{
// needs some data - let's feed it
m_resampler[stream].PutFloatData((float *)dec.GetData(amount), amount);
ret = true;
}
}
return ret;
}
/**
* Allocate the memory-mapped buffer for direct sound, and set up the
* callback.
*/
static int CreateMMAP(IDsCaptureDriverBufferImpl* pdbi)
{
snd_pcm_t *pcm = pdbi->pcm;
snd_pcm_format_t format;
snd_pcm_uframes_t frames, ofs, avail, psize, boundary;
unsigned int channels, bits_per_sample, bits_per_frame;
int err, mmap_mode;
const snd_pcm_channel_area_t *areas;
snd_pcm_hw_params_t *hw_params = pdbi->hw_params;
snd_pcm_sw_params_t *sw_params = pdbi->sw_params;
mmap_mode = snd_pcm_type(pcm);
if (mmap_mode == SND_PCM_TYPE_HW)
TRACE("mmap'd buffer is a direct hardware buffer.\n");
else if (mmap_mode == SND_PCM_TYPE_DMIX)
TRACE("mmap'd buffer is an ALSA dmix buffer\n");
else
TRACE("mmap'd buffer is an ALSA type %d buffer\n", mmap_mode);
err = snd_pcm_hw_params_get_period_size(hw_params, &psize, NULL);
err = snd_pcm_hw_params_get_format(hw_params, &format);
err = snd_pcm_hw_params_get_buffer_size(hw_params, &frames);
err = snd_pcm_hw_params_get_channels(hw_params, &channels);
bits_per_sample = snd_pcm_format_physical_width(format);
bits_per_frame = bits_per_sample * channels;
if (TRACE_ON(dsalsa))
ALSA_TraceParameters(hw_params, NULL, FALSE);
TRACE("format=%s frames=%ld channels=%d bits_per_sample=%d bits_per_frame=%d\n",
snd_pcm_format_name(format), frames, channels, bits_per_sample, bits_per_frame);
pdbi->mmap_buflen_frames = frames;
snd_pcm_sw_params_current(pcm, sw_params);
snd_pcm_sw_params_set_start_threshold(pcm, sw_params, 0);
snd_pcm_sw_params_get_boundary(sw_params, &boundary);
snd_pcm_sw_params_set_stop_threshold(pcm, sw_params, boundary);
snd_pcm_sw_params_set_silence_threshold(pcm, sw_params, INT_MAX);
snd_pcm_sw_params_set_silence_size(pcm, sw_params, 0);
snd_pcm_sw_params_set_avail_min(pcm, sw_params, 0);
err = snd_pcm_sw_params(pcm, sw_params);
pdbi->mmap_ofs_bytes = 0;
if (!pdbi->mmap)
{
pdbi->mmap_buffer = NULL;
frames = snd_pcm_bytes_to_frames(pdbi->pcm, pdbi->mmap_buflen_bytes);
snd_pcm_format_set_silence(format, pdbi->presented_buffer, frames);
pdbi->mmap_pos = 0;
}
else
{
err = snd_pcm_mmap_begin(pcm, &areas, &ofs, &avail);
if ( err < 0 )
{
ERR("Can't map sound device for direct access: %s/%d\n", snd_strerror(err), err);
return DSERR_GENERIC;
}
snd_pcm_format_set_silence(format, areas->addr, pdbi->mmap_buflen_frames);
pdbi->mmap_pos = ofs + snd_pcm_mmap_commit(pcm, ofs, 0);
pdbi->mmap_buffer = areas->addr;
}
TRACE("created mmap buffer of %ld frames (%d bytes) at %p\n",
pdbi->mmap_buflen_frames, pdbi->mmap_buflen_bytes, pdbi->mmap_buffer);
return DS_OK;
}
/** Fill buffers, for starting and stopping
* Alsa won't start playing until everything is filled up
* This also updates mmap_pos
*
* Returns: Amount of periods in use so snd_pcm_avail_update
* doesn't have to be called up to 4x in GetPosition()
*/
static snd_pcm_uframes_t CommitAll(IDsCaptureDriverBufferImpl *This, DWORD forced)
{
const snd_pcm_channel_area_t *areas;
snd_pcm_uframes_t used;
const snd_pcm_uframes_t commitahead = This->mmap_buflen_frames;
used = This->mmap_buflen_frames - snd_pcm_avail_update(This->pcm);
TRACE("%p needs to commit to %lu, used: %lu\n", This, commitahead, used);
if (used < commitahead && (forced || This->play_looping))
{
snd_pcm_uframes_t done, putin = commitahead - used;
if (This->mmap)
{
snd_pcm_mmap_begin(This->pcm, &areas, &This->mmap_pos, &putin);
CopyData(This, This->mmap_pos, putin);
done = snd_pcm_mmap_commit(This->pcm, This->mmap_pos, putin);
This->mmap_pos += done;
used += done;
putin = commitahead - used;
if (This->mmap_pos == This->mmap_buflen_frames && (snd_pcm_sframes_t)putin > 0 && This->play_looping)
{
This->mmap_ofs_bytes += snd_pcm_frames_to_bytes(This->pcm, This->mmap_buflen_frames);
This->mmap_ofs_bytes %= This->mmap_buflen_bytes;
snd_pcm_mmap_begin(This->pcm, &areas, &This->mmap_pos, &putin);
CopyData(This, This->mmap_pos, putin);
done = snd_pcm_mmap_commit(This->pcm, This->mmap_pos, putin);
This->mmap_pos += done;
used += done;
}
}
else
{
DWORD pos;
snd_pcm_sframes_t ret;
snd_pcm_uframes_t cap = snd_pcm_bytes_to_frames(This->pcm, This->mmap_buflen_bytes);
pos = realpos_to_fakepos(This, This->mmap_pos);
if (This->mmap_pos + putin > cap)
putin = cap - This->mmap_pos;
ret = snd_pcm_readi(This->pcm, This->presented_buffer + pos, putin);
if (ret == -EPIPE)
{
WARN("Underrun occurred\n");
snd_pcm_prepare(This->pcm);
ret = snd_pcm_readi(This->pcm, This->presented_buffer + pos, putin);
snd_pcm_start(This->pcm);
}
if (ret < 0)
{
WARN("Committing data: %ld / %s (%ld)\n", ret, snd_strerror(ret), putin);
ret = 0;
}
This->mmap_pos += ret;
used += ret;
/* At this point mmap_pos may be >= This->mmap_pos this is harmless
* realpos_to_fakepos handles it well, and below it is truncated
*/
putin = commitahead - used;
if (putin > 0)
{
pos = realpos_to_fakepos(This, This->mmap_pos);
ret = snd_pcm_readi(This->pcm, This->presented_buffer + pos, putin);
if (ret > 0)
{
This->mmap_pos += ret;
used += ret;
}
}
}
}
if (This->mmap_pos >= This->mmap_buflen_frames)
{
This->mmap_ofs_bytes += snd_pcm_frames_to_bytes(This->pcm, This->mmap_buflen_frames);
This->mmap_ofs_bytes %= This->mmap_buflen_bytes;
This->mmap_pos -= This->mmap_buflen_frames;
}
return used;
}
