static int
oss_configure_device(int fd, audio_format *ifmt, audio_format *ofmt)
{
/* Configure the audio device. This function is called for both read */
/* and write file descriptors, so the setup must not break if done */
/* twice on the same device. */
int mode, stereo, speed;
mode = deve2oss(ifmt->encoding);
if ((ioctl(fd, SNDCTL_DSP_SETFMT, &mode) == -1)) {
if (ifmt->encoding == DEV_S16) {
audio_format_change_encoding(ifmt, DEV_PCMU);
audio_format_change_encoding(ofmt, DEV_PCMU);
if ((ioctl(fd, SNDCTL_DSP_SETFMT, &mode) == -1)) {
return FALSE;
}
debug_msg("device doesn't support 16bit audio, using 8 bit PCMU\n");
}
}
stereo = ifmt->channels - 1;
assert(stereo == 0 || stereo == 1);
if ((ioctl(fd, SNDCTL_DSP_STEREO, &stereo) == -1) || (stereo != (ifmt->channels - 1))) {
debug_msg("device doesn't support %d channels!\n", ifmt->channels);
return FALSE;
}
speed = ifmt->sample_rate;
if (ioctl(fd, SNDCTL_DSP_SPEED, &speed) == -1) {
debug_msg("device doesn't support %dHz sampling rate in full duplex!\n", ifmt->sample_rate);
return FALSE;
}
return TRUE;
}
int macosx_audio_open(audio_desc_t ad, audio_format* ifmt, audio_format *ofmt)
{
OSStatus err = noErr;
UInt32 propertySize;
Boolean writable;
obtained_ = false;
add = ad;
//dev[0] = devices[ad];
UNUSED(ofmt);
// Get the default input device ID.
err = AudioHardwareGetPropertyInfo(kAudioHardwarePropertyDefaultInputDevice, &propertySize, &writable);
if (err != noErr) {
return 0;
}
err = AudioHardwareGetProperty(kAudioHardwarePropertyDefaultInputDevice, &propertySize, &(devices[ad].inputDeviceID_));
if (err != noErr) {
debug_msg("error kAudioHardwarePropertyDefaultInputDevice");
return 0;
}
if (devices[ad].inputDeviceID_ == kAudioDeviceUnknown) {
debug_msg("error kAudioDeviceUnknown");
return 0;
}
// Get the input stream description.
err = AudioDeviceGetPropertyInfo(devices[ad].inputDeviceID_, 0, true, kAudioDevicePropertyStreamFormat, &propertySize, &writable);
if (err != noErr) {
debug_msg("error AudioDeviceGetPropertyInfo");
return 0;
}
err = AudioDeviceGetProperty(devices[ad].inputDeviceID_, 0, true, kAudioDevicePropertyStreamFormat, &propertySize, &(devices[ad].inputStreamBasicDescription_));
//printf("inputStreamBasicDescription_.mBytesPerFrame %d\n", devices[add].inputStreamBasicDescription_);
if (err != noErr) {
debug_msg("error AudioDeviceGetProperty");
return 0;
}
// nastavime maly endian
devices[ad].inputStreamBasicDescription_.mFormatFlags &= (kAudioFormatFlagIsBigEndian & 0);
if (writable) {
err = AudioDeviceSetProperty(devices[ad].inputDeviceID_, NULL, 0, true, kAudioDevicePropertyStreamFormat, sizeof(AudioStreamBasicDescription), &(devices[ad].inputStreamBasicDescription_));
if (err != noErr) printf("err: AudioDeviceSetProperty: kAudioDevicePropertyStreamFormat\n");
}
/* set the buffer size of the device */
/*
int bufferByteSize = 8192;
propertySize = sizeof(bufferByteSize);
err = AudioDeviceSetProperty(devices[ad].inputDeviceID_, NULL, 0, true, kAudioDevicePropertyBufferSize, propertySize, &bufferByteSize);
if (err != noErr) debug_msg("err: Set kAudioDevicePropertyBufferSize to %d\n", bufferByteSize);
else debug_msg("sucessfully set kAudioDevicePropertyBufferSize to %d\n", bufferByteSize);
*/
// Set the device sample rate -- a temporary fix for the G5's
// built-in audio and possibly other audio devices.
Boolean IsInput = 0;
int inChannel = 0;
Float64 theAnswer = 44100;
UInt32 theSize = sizeof(theAnswer);
err = AudioDeviceSetProperty(devices[ad].inputDeviceID_, NULL, inChannel, IsInput,
kAudioDevicePropertyNominalSampleRate, theSize, &theAnswer);
if (err != noErr) {
debug_msg("error AudioDeviceSetProperty\n");
return 0;
}
debug_msg("Sample rate, %f\n", theAnswer);
#if defined(MAC_OS_X_VERSION_10_5) && (MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5)
err = AudioDeviceCreateIOProcID(devices[ad].inputDeviceID_, audioIOProc, (void*)NULL, &devices[ad].inputDeviceProcID_);
if (err != noErr) {
debug_msg("error AudioDeviceCreateIOProcID, %s\n", GetMacOSStatusCommentString(err));
return 0;
}
err = OpenADefaultComponent(kAudioUnitType_Output, kAudioUnitSubType_DefaultOutput, &(devices[ad].outputUnit_));
// The HAL AU maybe a better way to in the future...
//err = OpenADefaultComponent(kAudioUnitType_Output, kAudioUnitSubType_HALOutput, &(devices[ad].outputUnit_));
if (err != noErr) {
debug_msg("error OpenADefaultComponent\n");
return 0;
}
#else
// Register the AudioDeviceIOProc.
err = AudioDeviceAddIOProc(devices[ad].inputDeviceID_, audioIOProc, NULL);
if (err != noErr) {
debug_msg("error AudioDeviceAddIOProc\n");
return 0;
}
err = OpenDefaultAudioOutput(&(devices[ad].outputUnit_));
if (err != noErr) {
debug_msg("error OpenDefaultAudioOutput\n");
return 0;
}
#endif
// Register a callback function to provide output data to the unit.
devices[ad].input.inputProc = outputRenderer;
devices[ad].input.inputProcRefCon = 0;
/* These would be needed if HAL used
* UInt32 enableIO =1;
err = AudioUnitSetProperty(devices[ad].outputUnit_, kAudioOutputUnitProperty_EnableIO, kAudioUnitScope_Output, 0, (const void*)&enableIO, sizeof(UInt32));
enableIO=0;
err = AudioUnitSetProperty(devices[ad].outputUnit_, kAudioOutputUnitProperty_EnableIO, kAudioUnitScope_Input, 1, (const void*)&enableIO, sizeof(UInt32));
if (err != noErr) {
debug_msg("error AudioUnitSetProperty EnableIO with error %ld: %s\n", err, GetMacOSStatusErrorString(err));
return 0;
}*/
#if defined(MAC_OS_X_VERSION_10_5) && (MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5)
err = AudioUnitSetProperty(devices[ad].outputUnit_, kAudioUnitProperty_SetRenderCallback, kAudioUnitScope_Global, 0, &(devices[ad].input), sizeof(AURenderCallbackStruct));
#else
err = AudioUnitSetProperty(devices[ad].outputUnit_, kAudioOutputUnitProperty_SetInputCallback, kAudioUnitScope_Global, 0, &(devices[ad].input), sizeof(AURenderCallbackStruct));
#endif
if (err != noErr) {
debug_msg("error AudioUnitSetProperty1 with error %ld: %s\n", err, GetMacOSStatusErrorString(err));
return 0;
}
// Define the Mash stream description. Mash puts 20ms of data into each read
// and write call. 20ms at 8000Hz equals 160 samples. Each sample is a u_char,
// so that's 160 bytes. Mash uses 8-bit mu-law internally, so we need to convert
// to 16-bit linear before using the audio data.
devices[ad].mashStreamBasicDescription_.mSampleRate = 8000.0;
//devices[ad].mashStreamBasicDescription_.mSampleRate = ifmt->sample_rate;
devices[ad].mashStreamBasicDescription_.mFormatID = kAudioFormatLinearPCM;
#ifdef WORDS_BIGENDIAN
devices[ad].mashStreamBasicDescription_.mFormatFlags =kLinearPCMFormatFlagIsSignedInteger | kLinearPCMFormatFlagIsBigEndian |kLinearPCMFormatFlagIsPacked;
#else
devices[ad].mashStreamBasicDescription_.mFormatFlags =kLinearPCMFormatFlagIsSignedInteger | kLinearPCMFormatFlagIsPacked;
#endif
devices[ad].mashStreamBasicDescription_.mBytesPerPacket = 2;
devices[ad].mashStreamBasicDescription_.mFramesPerPacket = 1;
devices[ad].mashStreamBasicDescription_.mBytesPerFrame = 2;
devices[ad].mashStreamBasicDescription_.mChannelsPerFrame = 1;
devices[ad].mashStreamBasicDescription_.mBitsPerChannel = 16;
// Inform the default output unit of our source format.
err = AudioUnitSetProperty(devices[ad].outputUnit_, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, 0, &(devices[ad].mashStreamBasicDescription_), sizeof(AudioStreamBasicDescription));
if (err != noErr) {
debug_msg("error AudioUnitSetProperty2");
printf("error setting output unit source format\n");
return 0;
}
// check the stream format
err = AudioUnitGetPropertyInfo(devices[ad].outputUnit_, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, 0, &propertySize, &writable);
if (err != noErr) debug_msg("err getting propert info for kAudioUnitProperty_StreamFormat\n");
err = AudioUnitGetProperty(devices[ad].outputUnit_, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, 0, &streamdesc_, &propertySize);
if (err != noErr) debug_msg("err getting values for kAudioUnitProperty_StreamFormat\n");
char name[128];
audio_format_name(ifmt, name, 128);
debug_msg("Requested ifmt %s\n",name);
debug_msg("ifmt bytes pre block: %d\n",ifmt->bytes_per_block);
// handle the requested format
if (ifmt->encoding != DEV_S16) {
audio_format_change_encoding(ifmt, DEV_S16);
debug_msg("Requested ifmt changed to %s\n",name);
debug_msg("ifmt bytes pre block: %d\n",ifmt->bytes_per_block);
}
audio_format_name(ofmt, name, 128);
debug_msg("Requested ofmt %s\n",name);
debug_msg("ofmt bytes pre block: %d\n",ofmt->bytes_per_block);
// Allocate the read buffer and Z delay line.
//readBufferSize_ = 8192;
readBufferSize_ = ifmt->bytes_per_block * ringBufferFactor_;
//readBufferSize_ = 320;
//printf("readBufferSize_ %d\n", readBufferSize_);
readBuffer_ = malloc(sizeof(u_char)*readBufferSize_);
bzero(readBuffer_, readBufferSize_ * sizeof(u_char));
//memset(readBuffer_, PCMU_AUDIO_ZERO, readBufferSize_);
//inputReadIndex_ = -1;
inputReadIndex_ = 0; inputWriteIndex_ = 0;
zLine_ = malloc(sizeof(double)*DECIM441_LENGTH / 80);
availableInput_ = 0;
// Allocate the write buffer.
//writeBufferSize_ = 8000;
writeBufferSize_ = ofmt->bytes_per_block * ringBufferFactor_;
writeBuffer_ = malloc(sizeof(SInt16)*writeBufferSize_);
bzero(writeBuffer_, writeBufferSize_ * sizeof(SInt16));
outputReadIndex_ = 0; outputWriteIndex_ = 0;
//outputWriteIndex_ = -1;
// Start audio processing.
err = AudioUnitInitialize(devices[ad].outputUnit_);
if (err != noErr) {
debug_msg("error AudioUnitInitialize\n");
return 0;
}
err = AudioDeviceStart(devices[ad].inputDeviceID_, audioIOProc);
if (err != noErr) {
fprintf(stderr, "Input device error: AudioDeviceStart\n");
return 0;
}
err = AudioOutputUnitStart(devices[ad].outputUnit_);
if (err != noErr) {
fprintf(stderr, "Output device error: AudioOutputUnitStart\n");
return 0;
}
// Inform the default output unit of our source format.
/*
err = AudioUnitSetProperty(devices[ad].outputUnit_, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, 0, &(devices[ad].mashStreamBasicDescription_), sizeof(AudioStreamBasicDescription));
if (err != noErr) {
debug_msg("error AudioUnitSetProperty3");
return 0;
}
*/
return 1;
};
/* Returns TRUE if ok, 0 otherwise. */
int
atm_audio_open(audio_desc_t ad, audio_format* ifmt, audio_format* ofmt)
{
int len;
struct sockaddr_atmpvc vcc_address;
FILE *f = fopen("atm_socket", "r");
if (f == NULL) {
debug_msg("ATM socket file not found");
return FALSE;
}
if (atm_audio_supports(ifmt) == FALSE) {
/* Should never get here */
debug_msg("ATM input format not supported\n");
return FALSE;
}
if (atm_audio_supports(ifmt) == FALSE) {
/* Should never get here */
debug_msg("ATM output format not supported\n");
return FALSE;
}
fread(&atm_socket, sizeof(atm_socket), 1, f);
fclose(f);
len = sizeof(vcc_address);
if (audio_fd != -1) {
debug_msg("Device already open!");
atm_audio_close(ad);
return FALSE;
}
if (getsockopt(atm_socket, SOL_ATM, SO_ATMPVC, (char *)&vcc_address, &len) >= 0) {
unsigned gfc=0, vpi, vci, type=0, clp=0;
vpi = vcc_address.sap_addr.vpi;
vci = vcc_address.sap_addr.vci;
audio_fd = atm_socket;
dev_info.atmhdr = (gfc << ATM_HDR_GFC_SHIFT) | (vpi << ATM_HDR_VPI_SHIFT) |
(vci << ATM_HDR_VCI_SHIFT) | (type << ATM_HDR_PTI_SHIFT) | clp;
dev_info.txresidue_bytes = 0;
dev_info.rxresidue_bytes = 0;
dev_info.rxresidue = dev_info.rxresidue_buf;
dev_info.seqno = 0;
memset(dev_info.txresidue, 0, sizeof(dev_info.txresidue));
memset(dev_info.rxresidue, 0, sizeof(dev_info.txresidue));
dev_info.monitor_gain = 0;
dev_info.output_muted = 0; /* 0==not muted */
dev_info.play.port = AUDIO_LINE_OUT;
dev_info.record.port = AUDIO_LINE_IN;
audio_format_change_encoding(ifmt, DEV_PCMA);
audio_format_change_encoding(ofmt, DEV_PCMA);
debug_msg("ATM audio device open (fd=%d, vpi=%d, vci=%d)\n", audio_fd, vpi, vci);
atm_audio_drain(ad);
return audio_fd;
} else {
debug_msg("ATM socket descriptor is invalid");
return FALSE;
}
}
