| c732d49e |
* Contact for licensing options: <licensing-mcpttclient(at)mcopenplatform(dot)com>
*
* The original file was part of Open Source Doubango Framework
* Copyright (C) 2010-2011 Mamadou Diop.
* Copyright (C) 2012 Doubango Telecom <http://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.
*
*/
/**@file tdav_consumer_audioqueue.c
* @brief Audio Consumer for MacOSX and iOS platforms.
*
* @authors
* - Laurent Etiemble <laurent.etiemble(at)gmail.com>
* - Mamadou Diop <diopmamadou(at)doubango(dot)org>
*
* @date Created: Sat Nov 8 16:54:58 2009 letiemble
*/
#include "tinydav/audio/coreaudio/tdav_consumer_audioqueue.h"
// http://developer.apple.com/library/mac/#documentation/MusicAudio/Reference/AudioQueueReference/Reference/reference.html
#if HAVE_COREAUDIO_AUDIO_QUEUE
#include "tsk_string.h"
#include "tsk_thread.h"
#include "tsk_memory.h"
#include "tsk_debug.h"
static void __handle_output_buffer(void *userdata, AudioQueueRef queue, AudioQueueBufferRef buffer) {
tdav_consumer_audioqueue_t* consumer = (tdav_consumer_audioqueue_t*)userdata;
if (!consumer->started) {
return;
}
if(!tdav_consumer_audio_get(TDAV_CONSUMER_AUDIO(consumer), buffer->mAudioData, consumer->buffer_size)){
// Put silence
memset(buffer->mAudioData, 0, consumer->buffer_size);
}
// Re-enqueue the buffer
AudioQueueEnqueueBuffer(consumer->queue, buffer, 0, NULL);
// alert the jitter buffer
tdav_consumer_audio_tick(TDAV_CONSUMER_AUDIO(consumer));
}
/* ============ Media Consumer Interface ================= */
#define tdav_consumer_audioqueue_set tsk_null
int tdav_consumer_audioqueue_prepare(tmedia_consumer_t* self, const tmedia_codec_t* codec)
{
OSStatus ret;
tsk_size_t i;
tdav_consumer_audioqueue_t* consumer = (tdav_consumer_audioqueue_t*)self;
if(!consumer || !codec && codec->plugin){
TSK_DEBUG_ERROR("Invalid parameter");
return -1;
}
TMEDIA_CONSUMER(consumer)->audio.ptime = TMEDIA_CODEC_PTIME_AUDIO_DECODING(codec);
TMEDIA_CONSUMER(consumer)->audio.in.channels = TMEDIA_CODEC_CHANNELS_AUDIO_DECODING(codec);
TMEDIA_CONSUMER(consumer)->audio.in.rate = TMEDIA_CODEC_RATE_DECODING(codec);
/* codec should have ptime */
// Set audio category
#if TARGET_OS_IPHONE
UInt32 category = kAudioSessionCategory_PlayAndRecord;
AudioSessionSetProperty(kAudioSessionProperty_AudioCategory, sizeof(category), &category);
#endif
// Create the audio stream description
AudioStreamBasicDescription *description = &(consumer->description);
description->mSampleRate = TMEDIA_CONSUMER(consumer)->audio.out.rate ? TMEDIA_CONSUMER(consumer)->audio.out.rate : TMEDIA_CONSUMER(consumer)->audio.in.rate;
description->mFormatID = kAudioFormatLinearPCM;
description->mFormatFlags = kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked;
description->mChannelsPerFrame = TMEDIA_CONSUMER(consumer)->audio.in.channels;
description->mFramesPerPacket = 1;
description->mBitsPerChannel = TMEDIA_CONSUMER(consumer)->audio.bits_per_sample;
description->mBytesPerPacket = description->mBitsPerChannel / 8 * description->mChannelsPerFrame;
description->mBytesPerFrame = description->mBytesPerPacket;
description->mReserved = 0;
int packetperbuffer = 1000 / TMEDIA_CONSUMER(consumer)->audio.ptime;
consumer->buffer_size = description->mSampleRate * description->mBytesPerFrame / packetperbuffer;
// Create the playback audio queue
ret = AudioQueueNewOutput(&(consumer->description),
__handle_output_buffer,
consumer,
NULL,
NULL,
0,
&(consumer->queue));
for(i = 0; i < CoreAudioPlayBuffers; i++) {
// Create the buffer for the queue
ret = AudioQueueAllocateBuffer(consumer->queue, consumer->buffer_size, &(consumer->buffers[i]));
if (ret) {
break;
}
// Clear the data
memset(consumer->buffers[i]->mAudioData, 0, consumer->buffer_size);
consumer->buffers[i]->mAudioDataByteSize = consumer->buffer_size;
// Enqueue the buffer
ret = AudioQueueEnqueueBuffer(consumer->queue, consumer->buffers[i], 0, NULL);
if (ret) {
break;
}
}
return ret;
}
int tdav_consumer_audioqueue_start(tmedia_consumer_t* self)
{
OSStatus ret;
tdav_consumer_audioqueue_t* consumer = (tdav_consumer_audioqueue_t*)self;
if(!consumer){
TSK_DEBUG_ERROR("Invalid parameter");
return -1;
}
if(consumer->started){
TSK_DEBUG_WARN("Consumer already started");
return 0;
}
consumer->started = tsk_true;
ret = AudioQueueStart(consumer->queue, NULL);
return ret;
}
int tdav_consumer_audioqueue_consume(tmedia_consumer_t* self, const void* buffer, tsk_size_t size, const tsk_object_t* proto_hdr)
{
tdav_consumer_audioqueue_t* consumer = (tdav_consumer_audioqueue_t*)self;
if(!consumer || !buffer || !size){
TSK_DEBUG_ERROR("Invalid parameter");
return -1;
}
// buffer is already decoded
return tdav_consumer_audio_put(TDAV_CONSUMER_AUDIO(consumer), buffer, size, proto_hdr);
}
int tdav_consumer_audioqueue_pause(tmedia_consumer_t* self)
{
OSStatus ret;
tdav_consumer_audioqueue_t* consumer = (tdav_consumer_audioqueue_t*)self;
if(!consumer){
TSK_DEBUG_ERROR("Invalid parameter");
return -1;
}
ret = AudioQueuePause(consumer->queue);
return ret;
}
int tdav_consumer_audioqueue_stop(tmedia_consumer_t* self)
{
OSStatus ret;
tdav_consumer_audioqueue_t* consumer = (tdav_consumer_audioqueue_t*)self;
if(!self){
TSK_DEBUG_ERROR("Invalid parameter");
return -1;
}
if(!consumer->started){
TSK_DEBUG_WARN("Consumer not started");
return 0;
}
consumer->started = tsk_false;
ret = AudioQueueStop(consumer->queue, false);
return ret;
}
//
// coreaudio consumer object definition
//
/* constructor */
static tsk_object_t* tdav_consumer_audioqueue_ctor(tsk_object_t * self, va_list * app)
{
tdav_consumer_audioqueue_t *consumer = self;
if(consumer){
/* init base */
tdav_consumer_audio_init(TDAV_CONSUMER_AUDIO(consumer));
}
return self;
}
/* destructor */
static tsk_object_t* tdav_consumer_audioqueue_dtor(tsk_object_t * self)
{
tdav_consumer_audioqueue_t *consumer = self;
if(consumer){
// Stop the consumer if not done
if(consumer->started){
tdav_consumer_audioqueue_stop(self);
}
// Free all buffers and dispose the queue
if (consumer->queue) {
tsk_size_t i;
for(i=0; i<CoreAudioPlayBuffers; i++){
AudioQueueFreeBuffer(consumer->queue, consumer->buffers[i]);
}
AudioQueueDispose(consumer->queue, true);
}
/* deinit base */
tdav_consumer_audio_deinit(TDAV_CONSUMER_AUDIO(consumer));
}
return self;
}
/* object definition */
static const tsk_object_def_t tdav_consumer_audioqueue_def_s =
{
sizeof(tdav_consumer_audioqueue_t),
tdav_consumer_audioqueue_ctor,
tdav_consumer_audioqueue_dtor,
tdav_consumer_audio_cmp,
};
/* plugin definition*/
static const tmedia_consumer_plugin_def_t tdav_consumer_audioqueue_plugin_def_s =
{
&tdav_consumer_audioqueue_def_s,
tmedia_audio,
"Apple CoreAudio consumer(AudioQueue)",
tdav_consumer_audioqueue_set,
tdav_consumer_audioqueue_prepare,
tdav_consumer_audioqueue_start,
tdav_consumer_audioqueue_consume,
tdav_consumer_audioqueue_pause,
tdav_consumer_audioqueue_stop
};
const tmedia_consumer_plugin_def_t *tdav_consumer_audioqueue_plugin_def_t = &tdav_consumer_audioqueue_plugin_def_s;
#endif /* HAVE_COREAUDIO_AUDIO_QUEUE */ |