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96 lines
3.4 KiB
96 lines
3.4 KiB
/****************************************************************************
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Copyright (c) 2016 Chukong Technologies Inc.
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Copyright (c) 2017-2023 Xiamen Yaji Software Co., Ltd.
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http://www.cocos2d-x.org
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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of the Software, and to permit persons to whom the Software is furnished to do so,
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subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#pragma once
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#include <condition_variable>
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#include <mutex>
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#include "audio/android/AudioDecoder.h"
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#include "audio/android/utils/Compat.h"
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namespace cc {
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class AudioDecoderSLES : public AudioDecoder {
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protected:
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AudioDecoderSLES();
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~AudioDecoderSLES() override;
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bool init(SLEngineItf engineItf, const ccstd::string &url, int bufferSizeInFrames, int sampleRate, const FdGetterCallback &fdGetterCallback);
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bool decodeToPcm() override;
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private:
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void queryAudioInfo();
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void signalEos();
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void decodeToPcmCallback(CCSLBufferQueueItf queueItf);
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void prefetchCallback(SLPrefetchStatusItf caller, SLuint32 event);
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void decodeProgressCallback(SLPlayItf caller, SLuint32 event);
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SLEngineItf _engineItf;
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SLObjectItf _playObj;
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/* Local storage for decoded audio data */
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char *_pcmData;
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/* we only want to query / display the PCM format once */
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bool _formatQueried;
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/* Used to signal prefetching failures */
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bool _prefetchError;
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/* to display the number of decode iterations */
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int _counter;
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/* metadata key index for the PCM format information we want to retrieve */
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int _numChannelsKeyIndex;
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int _sampleRateKeyIndex;
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int _bitsPerSampleKeyIndex;
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int _containerSizeKeyIndex;
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int _channelMaskKeyIndex;
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int _endiannessKeyIndex;
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/* to signal to the test app the end of the stream to decode has been reached */
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bool _eos;
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std::mutex _eosLock;
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std::condition_variable _eosCondition;
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/* Structure for passing information to callback function */
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typedef struct CallbackCntxt_ { //NOLINT(modernize-use-using, readability-identifier-naming)
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SLPlayItf playItf;
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SLMetadataExtractionItf metaItf;
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SLuint32 size;
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SLint8 *pDataBase; // Base address of local audio data storage
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SLint8 *pData; // Current address of local audio data storage
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} CallbackCntxt;
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CallbackCntxt _decContext;
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int _bufferSizeInFrames;
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int _assetFd;
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FdGetterCallback _fdGetterCallback;
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bool _isDecodingCallbackInvoked;
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friend class SLAudioDecoderCallbackProxy;
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friend class AudioDecoderProvider;
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};
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} // namespace cc
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