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/*
* Copyright (C) 2014-2015 Mamadou DIOP.
*
*
* 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/tdav_apple.h"
#if TDAV_UNDER_APPLE
#if TDAV_UNDER_IPHONE || TDAV_UNDER_IPHONE_SIMULATOR
#import <UIKit/UIKit.h>
#import <AudioToolbox/AudioToolbox.h>
#import <AVFoundation/AVFoundation.h>
#endif
#include "tsk_debug.h"
static tsk_bool_t g_apple_initialized = tsk_false;
static tsk_bool_t g_apple_audio_enabled = tsk_false;
#if TARGET_OS_IPHONE
// deprecated in iOS7+
static void _AudioSessionInterruptionListener(void * inClientData, UInt32 inInterruptionState)
{
switch(inInterruptionState) {
case kAudioSessionBeginInterruption:
{
TSK_DEBUG_INFO("_AudioSessionInterruptionListener:kAudioSessionBeginInterruption");
break;
}
case kAudioSessionEndInterruption:
{
TSK_DEBUG_INFO("_AudioSessionInterruptionListener:kAudioSessionEndInterruption");
break;
}
default:
{
TSK_DEBUG_INFO("_AudioSessionInterruptionListener:%u", (unsigned int)inInterruptionState);
break;
}
}
}
#endif
int tdav_apple_init()
{
if (g_apple_initialized) {
return 0;
}
// initialize audio session
#if TARGET_OS_IPHONE
if ([[[UIDevice currentDevice] systemVersion] doubleValue] >= 7.0) {
// Listening to interruption must be done in your AppDelegate:
// https://code.google.com/p/idoubs/source/browse/branches/2.0/ios-idoubs/Classes/idoubs2AppDelegate.mm?r=264#433
/* Set the audio session category to allow for playback/recording and mixing */
NSError *setCategoryError = nil;
BOOL setCategorySuccess = [[AVAudioSession sharedInstance]
setCategory:AVAudioSessionCategoryPlayAndRecord
withOptions: AVAudioSessionCategoryOptionMixWithOthers
error:&setCategoryError];
if (setCategorySuccess == NO) {
TSK_DEBUG_ERROR("Failed to set audio catrgory. Error code=%ld", (long)[setCategoryError code]);
return -1;
}
}
else {
OSStatus status;
status = AudioSessionInitialize(NULL, NULL, _AudioSessionInterruptionListener, NULL);
if (status) {
TSK_DEBUG_ERROR("AudioSessionInitialize() failed with status code=%d", (int32_t)status);
return -1;
}
// enable record/playback
UInt32 audioCategory = kAudioSessionCategory_PlayAndRecord;
status = AudioSessionSetProperty(kAudioSessionProperty_AudioCategory, sizeof(audioCategory), &audioCategory);
if(status){
TSK_DEBUG_ERROR("AudioSessionSetProperty(kAudioSessionProperty_AudioCategory) failed with status code=%d", (int32_t)status);
return -2;
}
// allow mixing
UInt32 allowMixing = true;
status = AudioSessionSetProperty(kAudioSessionProperty_OverrideCategoryMixWithOthers, sizeof(allowMixing), &allowMixing);
if(status){
TSK_DEBUG_ERROR("AudioSessionSetProperty(kAudioSessionProperty_OverrideCategoryMixWithOthers) failed with status code=%d", (int32_t)status);
return -3;
}
}
#endif
g_apple_initialized = tsk_true;
return 0;
}
int tdav_apple_enable_audio()
{
if (g_apple_audio_enabled) {
return 0;
}
int ret = 0;
if (!g_apple_initialized) {
if ((ret = tdav_apple_init())) {
return ret;
}
}
#if TARGET_OS_IPHONE
if ([[[UIDevice currentDevice] systemVersion] doubleValue] >= 7.0) {
NSError *activationError = nil;
BOOL activationResult = [[AVAudioSession sharedInstance] setActive: YES error: &activationError];
if (activationResult == NO) {
NSInteger code = [activationError code];
if (code == AVAudioSessionErrorInsufficientPriority || [[AVAudioSession sharedInstance] isOtherAudioPlaying]) {
TSK_DEBUG_WARN("Delaying audio initialization because another app is using it");
return 0; // application is interrupted -> wait for notification -> not error
}
else {
TSK_DEBUG_ERROR("AVAudioSession.setActive(YES) faile with error code: %ld", (long)code);
return -1;
}
}
}
else {
// enable audio session
OSStatus status = AudioSessionSetActive(true);
if (status) {
TSK_DEBUG_ERROR("AudioSessionSetActive(true) failed with status code=%d", (int32_t)status);
ret = -1;
}
}
#endif /* TARGET_OS_IPHONE */
g_apple_audio_enabled = (ret == 0) ? tsk_true : tsk_false;
return ret;
}
int tdav_apple_deinit()
{
// maybe other code use the session
// OSStatus status = AudioSessionSetActive(false);
return 0;
}
#endif /* TDAV_UNDER_APPLE */
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