mirror of https://github.com/axmolengine/axmol.git
82 lines
3.0 KiB
C++
82 lines
3.0 KiB
C++
/****************************************************************************
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Copyright (c) 2017 Chukong Technologies Inc.
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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
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, 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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#define LOG_TAG "AudioDecoderMp3"
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#include "audio/android/AudioDecoderMp3.h"
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#include "audio/android/mp3reader.h"
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#include "platform/CCFileUtils.h"
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namespace cocos2d { namespace experimental {
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AudioDecoderMp3::AudioDecoderMp3()
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{
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ALOGV("Create AudioDecoderMp3");
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}
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AudioDecoderMp3::~AudioDecoderMp3()
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{
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}
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bool AudioDecoderMp3::decodeToPcm()
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{
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_fileData = FileUtils::getInstance()->getDataFromFile(_url);
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if (_fileData.isNull())
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{
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return false;
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}
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mp3_callbacks callbacks;
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callbacks.read = AudioDecoder::fileRead;
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callbacks.seek = AudioDecoder::fileSeek;
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callbacks.close = AudioDecoder::fileClose;
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callbacks.tell = AudioDecoder::fileTell;
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int numChannels = 0;
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int sampleRate = 0;
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int numFrames = 0;
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if (EXIT_SUCCESS == decodeMP3(&callbacks, this, *_result.pcmBuffer, &numChannels, &sampleRate, &numFrames)
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&& numChannels > 0 && sampleRate > 0 && numFrames > 0)
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{
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_result.numChannels = numChannels;
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_result.sampleRate = sampleRate;
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_result.bitsPerSample = SL_PCMSAMPLEFORMAT_FIXED_16;
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_result.containerSize = SL_PCMSAMPLEFORMAT_FIXED_16;
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_result.channelMask = numChannels == 1 ? SL_SPEAKER_FRONT_CENTER : (SL_SPEAKER_FRONT_LEFT | SL_SPEAKER_FRONT_RIGHT);
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_result.endianness = SL_BYTEORDER_LITTLEENDIAN;
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_result.numFrames = numFrames;
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_result.duration = 1.0f * numFrames / sampleRate;
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std::string info = _result.toString();
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ALOGI("Original audio info: %s, total size: %d", info.c_str(), (int)_result.pcmBuffer->size());
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return true;
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}
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ALOGE("Decode MP3 (%s) failed, channels: %d, rate: %d, frames: %d", _url.c_str(), numChannels, sampleRate, numFrames);
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return false;
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}
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}} // namespace cocos2d { namespace experimental {
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