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doubango/tinyDAV/src/audio/coreaudio/tdav_producer_audiounit.c

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/*
* Copyright (C) 2010-2011 Mamadou Diop.
*
* Contact: Mamadou Diop <diopmamadou(at)doubango.org>
*
* This file is part of Open Source Doubango Framework.
*
* DOUBANGO is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* DOUBANGO is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with DOUBANGO.
*
*/
#include "tinydav/audio/coreaudio/tdav_producer_audiounit.h"
// http://developer.apple.com/library/ios/#documentation/MusicAudio/Conceptual/AudioUnitHostingGuide_iOS/Introduction/Introduction.html%23//apple_ref/doc/uid/TP40009492-CH1-SW1
#if HAVE_COREAUDIO_AUDIO_UNIT
#include <mach/mach.h>
#import <sys/sysctl.h>
#include "tsk_string.h"
#include "tsk_memory.h"
#include "tsk_thread.h"
#include "tsk_debug.h"
#define kRingPacketCount 10
static int tdav_producer_audiounit_pause(tmedia_producer_t* self);
static int tdav_producer_audiounit_resume(tmedia_producer_t* self);
static OSStatus __handle_input_buffer(void *inRefCon,
AudioUnitRenderActionFlags *ioActionFlags,
const AudioTimeStamp *inTimeStamp,
UInt32 inBusNumber,
UInt32 inNumberFrames,
AudioBufferList *ioData)
{
OSStatus status = noErr;
tdav_producer_audiounit_t* producer = (tdav_producer_audiounit_t*)inRefCon;
// holder
AudioBuffer buffer;
buffer.mData = tsk_null;
buffer.mDataByteSize = 0;
buffer.mNumberChannels = TMEDIA_PRODUCER(producer)->audio.channels;
// list of holders
AudioBufferList buffers;
buffers.mNumberBuffers = 1;
buffers.mBuffers[0] = buffer;
// render to get frames from the system
status = AudioUnitRender(tdav_audiounit_handle_get_instance(producer->audioUnitHandle),
ioActionFlags,
inTimeStamp,
inBusNumber,
inNumberFrames,
&buffers);
if(status == 0) {
// must not be done on async thread: doing it gives bad audio quality when audio+video call is done with CPU consuming codec (e.g. speex or g729)
speex_buffer_write(producer->ring.buffer, buffers.mBuffers[0].mData, buffers.mBuffers[0].mDataByteSize);
int avail = speex_buffer_get_available(producer->ring.buffer);
while (producer->started && avail >= producer->ring.chunck.size) {
avail -= speex_buffer_read(producer->ring.buffer, (void*)producer->ring.chunck.buffer, (int)producer->ring.chunck.size);
TMEDIA_PRODUCER(producer)->enc_cb.callback(TMEDIA_PRODUCER(producer)->enc_cb.callback_data,
producer->ring.chunck.buffer, producer->ring.chunck.size);
}
}
return status;
}
/* ============ Media Producer Interface ================= */
int tdav_producer_audiounit_set(tmedia_producer_t* self, const tmedia_param_t* param)
{
tdav_producer_audiounit_t* producer = (tdav_producer_audiounit_t*)self;
if(param->plugin_type == tmedia_ppt_producer) {
if(param->value_type == tmedia_pvt_int32) {
if (tsk_striequals(param->key, "mute")) {
producer->muted = TSK_TO_INT32((uint8_t*)param->value);
return tdav_audiounit_handle_mute(((tdav_producer_audiounit_t*)self)->audioUnitHandle, producer->muted);
}
else if (tsk_striequals(param->key, "interrupt")) {
int32_t interrupt = *((uint8_t*)param->value) ? 1 : 0;
return tdav_audiounit_handle_interrupt(producer->audioUnitHandle, interrupt);
}
else if (tsk_striequals(param->key, "pause") || tsk_striequals(param->key, "hold")) {
int32_t pause = *((uint8_t*)param->value) ? 1 : 0;
return pause ? tdav_producer_audiounit_pause(self) : tdav_producer_audiounit_resume(self);
}
}
}
return tdav_producer_audio_set(TDAV_PRODUCER_AUDIO(self), param);
}
static int tdav_producer_audiounit_prepare(tmedia_producer_t* self, const tmedia_codec_t* codec)
{
static UInt32 flagOne = 1;
UInt32 param;
// static UInt32 flagZero = 0;
#define kInputBus 1
tdav_producer_audiounit_t* producer = (tdav_producer_audiounit_t*)self;
OSStatus status = noErr;
AudioStreamBasicDescription audioFormat;
AudioStreamBasicDescription deviceFormat;
if(!producer || !codec || !codec->plugin) {
TSK_DEBUG_ERROR("Invalid parameter");
return -1;
}
if(!producer->audioUnitHandle) {
if(!(producer->audioUnitHandle = tdav_audiounit_handle_create(TMEDIA_PRODUCER(producer)->session_id))) {
TSK_DEBUG_ERROR("Failed to get audio unit instance for session with id=%lld", TMEDIA_PRODUCER(producer)->session_id);
return -3;
}
}
// enable
status = AudioUnitSetProperty(tdav_audiounit_handle_get_instance(producer->audioUnitHandle),
kAudioOutputUnitProperty_EnableIO,
kAudioUnitScope_Input,
kInputBus,
&flagOne,
sizeof(flagOne));
if(status != noErr) {
TSK_DEBUG_ERROR("AudioUnitSetProperty(kAudioOutputUnitProperty_EnableIO) failed with status=%ld", (signed long)status);
return -4;
}
else {
#if !TARGET_OS_IPHONE // strange: TARGET_OS_MAC is equal to '1' on Smulator
// disable output
param = 0;
status = AudioUnitSetProperty(tdav_audiounit_handle_get_instance(producer->audioUnitHandle),
kAudioOutputUnitProperty_EnableIO,
kAudioUnitScope_Output,
0,
&param,
sizeof(UInt32));
if(status != noErr) {
TSK_DEBUG_ERROR("AudioUnitSetProperty(kAudioOutputUnitProperty_EnableIO) failed with status=%ld", (signed long)status);
return -4;
}
// set default audio device
param = sizeof(AudioDeviceID);
AudioDeviceID inputDeviceID;
status = AudioHardwareGetProperty(kAudioHardwarePropertyDefaultInputDevice, &param, &inputDeviceID);
if(status != noErr) {
TSK_DEBUG_ERROR("AudioHardwareGetProperty(kAudioHardwarePropertyDefaultInputDevice) failed with status=%ld", (signed long)status);
return -4;
}
// set the current device to the default input unit
status = AudioUnitSetProperty(tdav_audiounit_handle_get_instance(producer->audioUnitHandle),
kAudioOutputUnitProperty_CurrentDevice,
kAudioUnitScope_Output,
0,
&inputDeviceID,
sizeof(AudioDeviceID));
if(status != noErr) {
TSK_DEBUG_ERROR("AudioUnitSetProperty(kAudioOutputUnitProperty_CurrentDevice) failed with status=%ld", (signed long)status);
return -4;
}
#endif /* TARGET_OS_MAC */
/* codec should have ptime */
TMEDIA_PRODUCER(producer)->audio.channels = TMEDIA_CODEC_CHANNELS_AUDIO_ENCODING(codec);
TMEDIA_PRODUCER(producer)->audio.rate = TMEDIA_CODEC_RATE_ENCODING(codec);
TMEDIA_PRODUCER(producer)->audio.ptime = TMEDIA_CODEC_PTIME_AUDIO_ENCODING(codec);
TSK_DEBUG_INFO("AudioUnit producer: channels=%d, rate=%d, ptime=%d",
TMEDIA_PRODUCER(producer)->audio.channels,
TMEDIA_PRODUCER(producer)->audio.rate,
TMEDIA_PRODUCER(producer)->audio.ptime);
// get device format
param = sizeof(AudioStreamBasicDescription);
status = AudioUnitGetProperty(tdav_audiounit_handle_get_instance(producer->audioUnitHandle),
kAudioUnitProperty_StreamFormat,
kAudioUnitScope_Input,
kInputBus,
&deviceFormat, &param);
if(status == noErr && deviceFormat.mSampleRate) {
#if TARGET_OS_IPHONE
// iOS support 8Khz, 16kHz and 32kHz => do not override the sampleRate
#elif TARGET_OS_MAC
// For example, iSight supports only 48kHz
TMEDIA_PRODUCER(producer)->audio.rate = deviceFormat.mSampleRate;
#endif
}
// set format
audioFormat.mSampleRate = TMEDIA_PRODUCER(producer)->audio.rate;
audioFormat.mFormatID = kAudioFormatLinearPCM;
audioFormat.mFormatFlags = kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked | kAudioFormatFlagIsNonInterleaved;
audioFormat.mChannelsPerFrame = TMEDIA_PRODUCER(producer)->audio.channels;
audioFormat.mFramesPerPacket = 1;
audioFormat.mBitsPerChannel = TMEDIA_PRODUCER(producer)->audio.bits_per_sample;
audioFormat.mBytesPerPacket = audioFormat.mBitsPerChannel / 8 * audioFormat.mChannelsPerFrame;
audioFormat.mBytesPerFrame = audioFormat.mBytesPerPacket;
audioFormat.mReserved = 0;
if(audioFormat.mFormatID == kAudioFormatLinearPCM && audioFormat.mChannelsPerFrame == 1) {
audioFormat.mFormatFlags &= ~kLinearPCMFormatFlagIsNonInterleaved;
}
status = AudioUnitSetProperty(tdav_audiounit_handle_get_instance(producer->audioUnitHandle),
kAudioUnitProperty_StreamFormat,
kAudioUnitScope_Output,
kInputBus,
&audioFormat,
sizeof(audioFormat));
if(status) {
TSK_DEBUG_ERROR("AudioUnitSetProperty(kAudioUnitProperty_StreamFormat) failed with status=%ld", (signed long)status);
return -5;
}
else {
// configure
if(tdav_audiounit_handle_configure(producer->audioUnitHandle, tsk_false, TMEDIA_PRODUCER(producer)->audio.ptime, &audioFormat)) {
TSK_DEBUG_ERROR("tdav_audiounit_handle_set_rate(%d) failed", TMEDIA_PRODUCER(producer)->audio.rate);
return -4;
}
// set callback function
AURenderCallbackStruct callback;
callback.inputProc = __handle_input_buffer;
callback.inputProcRefCon = producer;
status = AudioUnitSetProperty(tdav_audiounit_handle_get_instance(producer->audioUnitHandle),
kAudioOutputUnitProperty_SetInputCallback,
kAudioUnitScope_Output,
kInputBus,
&callback,
sizeof(callback));
if(status) {
TSK_DEBUG_ERROR("AudioUnitSetProperty(kAudioOutputUnitProperty_SetInputCallback) failed with status=%ld", (signed long)status);
return -6;
}
else {
// disbale buffer allocation as we will provide ours
//status = AudioUnitSetProperty(tdav_audiounit_handle_get_instance(producer->audioUnitHandle),
// kAudioUnitProperty_ShouldAllocateBuffer,
// kAudioUnitScope_Output,
// kInputBus,
// &flagZero,
// sizeof(flagZero));
producer->ring.chunck.size = (TMEDIA_PRODUCER(producer)->audio.ptime * audioFormat.mSampleRate * audioFormat.mBytesPerFrame) / 1000;
// allocate our chunck buffer
if(!(producer->ring.chunck.buffer = tsk_realloc(producer->ring.chunck.buffer, producer->ring.chunck.size))) {
TSK_DEBUG_ERROR("Failed to allocate new buffer");
return -7;
}
// create ringbuffer
producer->ring.size = kRingPacketCount * producer->ring.chunck.size;
if(!producer->ring.buffer) {
producer->ring.buffer = speex_buffer_init((int)producer->ring.size);
}
else {
int ret;
if((ret = speex_buffer_resize(producer->ring.buffer, producer->ring.size)) < 0) {
TSK_DEBUG_ERROR("speex_buffer_resize(%d) failed with error code=%d", (int)producer->ring.size, ret);
return ret;
}
}
if(!producer->ring.buffer) {
TSK_DEBUG_ERROR("Failed to create a new ring buffer with size = %d", (int)producer->ring.size);
return -9;
}
}
}
}
TSK_DEBUG_INFO("AudioUnit producer prepared");
return tdav_audiounit_handle_signal_producer_prepared(producer->audioUnitHandle);;
}
static int tdav_producer_audiounit_start(tmedia_producer_t* self)
{
tdav_producer_audiounit_t* producer = (tdav_producer_audiounit_t*)self;
if(!producer) {
TSK_DEBUG_ERROR("Invalid parameter");
return -1;
}
if(producer->paused) {
producer->paused = tsk_false;
return tsk_false;
}
int ret;
if(producer->started) {
TSK_DEBUG_WARN("Already started");
return 0;
}
else {
ret = tdav_audiounit_handle_start(producer->audioUnitHandle);
if(ret) {
TSK_DEBUG_ERROR("tdav_audiounit_handle_start failed with error code=%d", ret);
return ret;
}
}
producer->started = tsk_true;
// apply parameters (because could be lost when the producer is restarted -handle recreated-)
ret = tdav_audiounit_handle_mute(producer->audioUnitHandle, producer->muted);
TSK_DEBUG_INFO("AudioUnit producer started");
return 0;
}
static int tdav_producer_audiounit_pause(tmedia_producer_t* self)
{
tdav_producer_audiounit_t* producer = (tdav_producer_audiounit_t*)self;
if(!producer) {
TSK_DEBUG_ERROR("Invalid parameter");
return -1;
}
if (!producer->paused) {
producer->paused = tsk_true;
if (producer->started) {
int ret = tdav_audiounit_handle_stop(producer->audioUnitHandle);
if(ret) {
TSK_DEBUG_ERROR("tdav_audiounit_handle_stop failed with error code=%d", ret);
// do not return even if failed => we MUST stop the thread!
}
producer->started = false;
}
}
TSK_DEBUG_INFO("AudioUnit producer paused");
return 0;
}
static int tdav_producer_audiounit_resume(tmedia_producer_t* self)
{
tdav_producer_audiounit_t* producer = (tdav_producer_audiounit_t*)self;
if(!producer) {
TSK_DEBUG_ERROR("Invalid parameter");
return -1;
}
if (producer->paused) {
if (!producer->started) {
int ret = tdav_audiounit_handle_start(producer->audioUnitHandle);
if(ret) {
TSK_DEBUG_ERROR("tdav_audiounit_handle_start failed with error code=%d", ret);
// do not return even if failed => we MUST stop the thread!
}
}
producer->paused = false;
producer->started = true;
}
TSK_DEBUG_INFO("AudioUnit producer resumed");
return 0;
}
static int tdav_producer_audiounit_stop(tmedia_producer_t* self)
{
tdav_producer_audiounit_t* producer = (tdav_producer_audiounit_t*)self;
if(!producer) {
TSK_DEBUG_ERROR("Invalid parameter");
return -1;
}
if(!producer->started) {
TSK_DEBUG_INFO("Not started");
return 0;
}
else {
int ret = tdav_audiounit_handle_stop(producer->audioUnitHandle);
if(ret) {
TSK_DEBUG_ERROR("tdav_audiounit_handle_stop failed with error code=%d", ret);
// do not return even if failed => we MUST stop the thread!
}
#if TARGET_OS_IPHONE
//https://devforums.apple.com/thread/118595
if(producer->audioUnitHandle) {
tdav_audiounit_handle_destroy(&producer->audioUnitHandle);
}
#endif
}
producer->started = tsk_false;
TSK_DEBUG_INFO("AudioUnit producer stoppped");
return 0;
}
//
// CoreAudio producer object definition
//
/* constructor */
static tsk_object_t* tdav_producer_audiounit_ctor(tsk_object_t * self, va_list * app)
{
tdav_producer_audiounit_t *producer = self;
if(producer) {
/* init base */
tdav_producer_audio_init(TDAV_PRODUCER_AUDIO(producer));
/* init self */
}
return self;
}
/* destructor */
static tsk_object_t* tdav_producer_audiounit_dtor(tsk_object_t * self)
{
tdav_producer_audiounit_t *producer = self;
if(producer) {
// Stop the producer if not done
if(producer->started) {
tdav_producer_audiounit_stop(self);
}
// Free all buffers and dispose the queue
if (producer->audioUnitHandle) {
tdav_audiounit_handle_destroy(&producer->audioUnitHandle);
}
TSK_FREE(producer->ring.chunck.buffer);
if(producer->ring.buffer) {
speex_buffer_destroy(producer->ring.buffer);
}
/* deinit base */
tdav_producer_audio_deinit(TDAV_PRODUCER_AUDIO(producer));
TSK_DEBUG_INFO("*** AudioUnit Producer destroyed ***");
}
return self;
}
/* object definition */
static const tsk_object_def_t tdav_producer_audiounit_def_s = {
sizeof(tdav_producer_audiounit_t),
tdav_producer_audiounit_ctor,
tdav_producer_audiounit_dtor,
tdav_producer_audio_cmp,
};
/* plugin definition*/
static const tmedia_producer_plugin_def_t tdav_producer_audiounit_plugin_def_s = {
&tdav_producer_audiounit_def_s,
tmedia_audio,
"Apple CoreAudio producer (AudioUnit)",
tdav_producer_audiounit_set,
tdav_producer_audiounit_prepare,
tdav_producer_audiounit_start,
tdav_producer_audiounit_pause,
tdav_producer_audiounit_stop
};
const tmedia_producer_plugin_def_t *tdav_producer_audiounit_plugin_def_t = &tdav_producer_audiounit_plugin_def_s;
#endif /* HAVE_COREAUDIO_AUDIO_UNIT */
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