mirror of https://github.com/axmolengine/axmol.git
113 lines
3.6 KiB
C++
113 lines
3.6 KiB
C++
/****************************************************************************
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Copyright (c) 2016 Chukong Technologies Inc.
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Copyright (c) 2017-2018 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
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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 "AudioDecoderWav"
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#include "audio/android/AudioDecoderWav.h"
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#include "audio/android/tinysndfile.h"
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#include "platform/CCFileUtils.h"
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namespace cocos2d { namespace experimental {
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AudioDecoderWav::AudioDecoderWav()
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{
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ALOGV("Create AudioDecoderWav");
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}
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AudioDecoderWav::~AudioDecoderWav()
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{
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}
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void* AudioDecoderWav::onWavOpen(const char* path, void* user)
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{
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return user;
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}
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int AudioDecoderWav::onWavSeek(void* datasource, long offset, int whence)
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{
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return AudioDecoder::fileSeek(datasource, (int64_t) offset, whence);
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}
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int AudioDecoderWav::onWavClose(void* datasource)
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{
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return 0;
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}
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bool AudioDecoderWav::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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SF_INFO info;
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snd_callbacks cb;
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cb.open = onWavOpen;
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cb.read = AudioDecoder::fileRead;
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cb.seek = onWavSeek;
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cb.close = onWavClose;
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cb.tell = AudioDecoder::fileTell;
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SNDFILE* handle = NULL;
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bool ret = false;
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do
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{
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handle = sf_open_read(_url.c_str(), &info, &cb, this);
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if (handle == nullptr)
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break;
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if (info.frames == 0)
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break;
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ALOGD("wav info: frames: %d, samplerate: %d, channels: %d, format: %d", info.frames, info.samplerate, info.channels, info.format);
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size_t bufSize = sizeof(short) * info.frames * info.channels;
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unsigned char* buf = (unsigned char*)malloc(bufSize);
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sf_count_t readFrames = sf_readf_short(handle, (short*)buf, info.frames);
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assert(readFrames == info.frames);
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_result.pcmBuffer->insert(_result.pcmBuffer->end(), buf, buf + bufSize);
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_result.numChannels = info.channels;
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_result.sampleRate = info.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 = _result.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 = info.frames;
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_result.duration = 1.0f * info.frames / _result.sampleRate;
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free(buf);
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ret = true;
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} while (false);
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if (handle != NULL)
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sf_close(handle);
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return ret;
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}
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}} // namespace cocos2d { namespace experimental {
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