mirror of https://github.com/axmolengine/axmol.git
96 lines
3.3 KiB
C++
96 lines
3.3 KiB
C++
/****************************************************************************
|
|
Copyright (c) 2017 Chukong Technologies Inc.
|
|
|
|
http://www.cocos2d-x.org
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
of this software and associated documentation files (the "Software"), to deal
|
|
in the Software without restriction, including without limitation the rights
|
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
copies of the Software, and to permit persons to whom the Software is
|
|
furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in
|
|
all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
THE SOFTWARE.
|
|
****************************************************************************/
|
|
|
|
#pragma once
|
|
|
|
#include "audio/android/AudioDecoder.h"
|
|
#include <mutex>
|
|
#include <condition_variable>
|
|
|
|
namespace cocos2d { namespace experimental {
|
|
|
|
class AudioDecoderSLES : public AudioDecoder
|
|
{
|
|
protected:
|
|
AudioDecoderSLES();
|
|
virtual ~AudioDecoderSLES();
|
|
|
|
bool init(SLEngineItf engineItf, const std::string &url, int bufferSizeInFrames, int sampleRate, const FdGetterCallback &fdGetterCallback);
|
|
virtual bool decodeToPcm() override;
|
|
|
|
private:
|
|
void queryAudioInfo();
|
|
|
|
void signalEos();
|
|
void decodeToPcmCallback(SLAndroidSimpleBufferQueueItf queueItf);
|
|
void prefetchCallback(SLPrefetchStatusItf caller, SLuint32 event);
|
|
void decodeProgressCallback(SLPlayItf caller, SLuint32 event);
|
|
|
|
SLEngineItf _engineItf;
|
|
SLObjectItf _playObj;
|
|
/* Local storage for decoded audio data */
|
|
char* _pcmData;
|
|
|
|
/* we only want to query / display the PCM format once */
|
|
bool _formatQueried;
|
|
/* Used to signal prefetching failures */
|
|
bool _prefetchError;
|
|
|
|
/* to display the number of decode iterations */
|
|
int _counter;
|
|
|
|
/* metadata key index for the PCM format information we want to retrieve */
|
|
int _numChannelsKeyIndex;
|
|
int _sampleRateKeyIndex;
|
|
int _bitsPerSampleKeyIndex;
|
|
int _containerSizeKeyIndex;
|
|
int _channelMaskKeyIndex;
|
|
int _endiannessKeyIndex;
|
|
|
|
/* to signal to the test app the end of the stream to decode has been reached */
|
|
bool _eos;
|
|
std::mutex _eosLock;
|
|
std::condition_variable _eosCondition;
|
|
|
|
/* Structure for passing information to callback function */
|
|
typedef struct CallbackCntxt_
|
|
{
|
|
SLPlayItf playItf;
|
|
SLMetadataExtractionItf metaItf;
|
|
SLuint32 size;
|
|
SLint8 *pDataBase; // Base address of local audio data storage
|
|
SLint8 *pData; // Current address of local audio data storage
|
|
} CallbackCntxt;
|
|
|
|
CallbackCntxt _decContext;
|
|
int _bufferSizeInFrames;
|
|
int _assetFd;
|
|
FdGetterCallback _fdGetterCallback;
|
|
bool _isDecodingCallbackInvoked;
|
|
|
|
friend class SLAudioDecoderCallbackProxy;
|
|
friend class AudioDecoderProvider;
|
|
};
|
|
|
|
}} // namespace cocos2d { namespace experimental {
|