117 lines
3.3 KiB
C++
117 lines
3.3 KiB
C++
/*
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* Copyright (c) 2010-2012 OTClient <https://github.com/edubart/otclient>
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*
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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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*
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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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*
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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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#include "oggsoundfile.h"
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OggSoundFile::OggSoundFile(const FileStreamPtr& fileStream) : SoundFile(fileStream)
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{
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memset(&m_vorbisFile, 0, sizeof(m_vorbisFile));
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}
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OggSoundFile::~OggSoundFile()
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{
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ov_clear(&m_vorbisFile);
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}
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bool OggSoundFile::prepareOgg()
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{
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ov_callbacks callbacks = { cb_read, cb_seek, cb_close, cb_tell };
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ov_open_callbacks(m_file.get(), &m_vorbisFile, 0, 0, callbacks);
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vorbis_info* vi = ov_info(&m_vorbisFile, -1);
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if(!vi) {
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logError("ogg file not supported: ", m_file->name());
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return false;
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}
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m_channels = vi->channels;
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m_rate = vi->rate;
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m_bps = 16;
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m_size = ov_pcm_total(&m_vorbisFile, -1) * 2;
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return true;
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}
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int OggSoundFile::read(void *buffer, int bufferSize)
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{
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char* bytesBuffer = reinterpret_cast<char*>(buffer);
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int section = 0;
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size_t totalBytesRead = 0;
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while(bufferSize > 0) {
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size_t bytesToRead = bufferSize;
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long bytesRead = ov_read(&m_vorbisFile, bytesBuffer, bytesToRead, 0, 2, 1, §ion);
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if(bytesRead == 0)
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break;
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bufferSize -= bytesRead;
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bytesBuffer += bytesRead;
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totalBytesRead += bytesRead;
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}
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return totalBytesRead;
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}
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void OggSoundFile::reset()
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{
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ov_pcm_seek(&m_vorbisFile, 0);
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}
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size_t OggSoundFile::cb_read(void* ptr, size_t size, size_t nmemb, void* source)
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{
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FileStream *file = static_cast<FileStream*>(source);
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return file->read(ptr, size, nmemb);
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}
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int OggSoundFile::cb_seek(void* source, ogg_int64_t offset, int whence)
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{
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FileStream *file = static_cast<FileStream*>(source);
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switch(whence) {
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case SEEK_SET:
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if(file->seek(offset))
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return 0;
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break;
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case SEEK_CUR:
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if(file->seek(file->tell() + offset))
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return 0;
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break;
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case SEEK_END:
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if(file->seek(file->size() + offset))
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return 0;
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break;
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}
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return -1;
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}
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int OggSoundFile::cb_close(void* source)
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{
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FileStream *file = static_cast<FileStream*>(source);
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file->close();
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return 0;
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}
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long OggSoundFile::cb_tell(void* source)
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{
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FileStream *file = static_cast<FileStream*>(source);
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return file->tell();
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}
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