mirror of https://github.com/axmolengine/axmol.git
113 lines
3.5 KiB
C++
113 lines
3.5 KiB
C++
/****************************************************************************
|
|
Copyright (c) 2016 Chukong Technologies Inc.
|
|
Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
|
|
|
|
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.
|
|
****************************************************************************/
|
|
|
|
#define LOG_TAG "AudioDecoderOgg"
|
|
|
|
#include "audio/android/AudioDecoderOgg.h"
|
|
#include "platform/CCFileUtils.h"
|
|
|
|
namespace cocos2d {
|
|
|
|
AudioDecoderOgg::AudioDecoderOgg()
|
|
{
|
|
ALOGV("Create AudioDecoderOgg");
|
|
}
|
|
|
|
AudioDecoderOgg::~AudioDecoderOgg()
|
|
{
|
|
|
|
}
|
|
|
|
int AudioDecoderOgg::fseek64Wrap(void* datasource, ogg_int64_t off, int whence)
|
|
{
|
|
return AudioDecoder::fileSeek(datasource, (long)off, whence);
|
|
}
|
|
|
|
bool AudioDecoderOgg::decodeToPcm()
|
|
{
|
|
_fileData = FileUtils::getInstance()->getDataFromFile(_url);
|
|
if (_fileData.isNull())
|
|
{
|
|
return false;
|
|
}
|
|
|
|
ov_callbacks callbacks;
|
|
callbacks.read_func = AudioDecoder::fileRead;
|
|
callbacks.seek_func = AudioDecoderOgg::fseek64Wrap;
|
|
callbacks.close_func = AudioDecoder::fileClose;
|
|
callbacks.tell_func = AudioDecoder::fileTell;
|
|
|
|
_fileCurrPos = 0;
|
|
|
|
OggVorbis_File vf;
|
|
int ret = ov_open_callbacks(this, &vf, NULL, 0, callbacks);
|
|
if (ret != 0)
|
|
{
|
|
ALOGE("Open file error, file: %s, ov_open_callbacks return %d", _url.c_str(), ret);
|
|
return false;
|
|
}
|
|
// header
|
|
auto vi = ov_info(&vf, -1);
|
|
|
|
uint32_t pcmSamples = (uint32_t) ov_pcm_total(&vf, -1);
|
|
|
|
uint32_t bufferSize = pcmSamples * vi->channels * sizeof(short);
|
|
char* pcmBuffer = (char*)malloc(bufferSize);
|
|
memset(pcmBuffer, 0, bufferSize);
|
|
|
|
int currentSection = 0;
|
|
long curPos = 0;
|
|
long readBytes = 0;
|
|
|
|
do
|
|
{
|
|
readBytes = ov_read(&vf, pcmBuffer + curPos, 4096, ¤tSection);
|
|
curPos += readBytes;
|
|
} while (readBytes > 0);
|
|
|
|
if (curPos > 0)
|
|
{
|
|
_result.pcmBuffer->insert(_result.pcmBuffer->end(), pcmBuffer, pcmBuffer + bufferSize);
|
|
_result.numChannels = vi->channels;
|
|
_result.sampleRate = vi->rate;
|
|
_result.bitsPerSample = SL_PCMSAMPLEFORMAT_FIXED_16;
|
|
_result.containerSize = SL_PCMSAMPLEFORMAT_FIXED_16;
|
|
_result.channelMask = vi->channels == 1 ? SL_SPEAKER_FRONT_CENTER : (SL_SPEAKER_FRONT_LEFT | SL_SPEAKER_FRONT_RIGHT);
|
|
_result.endianness = SL_BYTEORDER_LITTLEENDIAN;
|
|
_result.numFrames = pcmSamples;
|
|
_result.duration = 1.0f * pcmSamples / vi->rate;
|
|
}
|
|
else
|
|
{
|
|
ALOGE("ov_read returns 0 byte!");
|
|
}
|
|
|
|
ov_clear(&vf);
|
|
free(pcmBuffer);
|
|
|
|
return (curPos > 0);
|
|
}
|
|
|
|
} // namespace cocos2d {
|