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173 lines
6.3 KiB
173 lines
6.3 KiB
/*==LICENSE==* |
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CyanWorlds.com Engine - MMOG client, server and tools |
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Copyright (C) 2011 Cyan Worlds, Inc. |
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This program is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 3 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program. If not, see <http://www.gnu.org/licenses/>. |
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Additional permissions under GNU GPL version 3 section 7 |
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If you modify this Program, or any covered work, by linking or |
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combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK, |
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NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent |
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JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK |
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(or a modified version of those libraries), |
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containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA, |
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PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG |
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JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the |
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licensors of this Program grant you additional |
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permission to convey the resulting work. Corresponding Source for a |
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non-source form of such a combination shall include the source code for |
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the parts of OpenSSL and IJG JPEG Library used as well as that of the covered |
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work. |
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You can contact Cyan Worlds, Inc. by email legal@cyan.com |
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or by snail mail at: |
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Cyan Worlds, Inc. |
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14617 N Newport Hwy |
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Mead, WA 99021 |
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*==LICENSE==*/ |
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////////////////////////////////////////////////////////////////////////////// |
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// // |
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// plAudioFileReader // |
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// // |
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//// Notes /////////////////////////////////////////////////////////////////// |
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// // |
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// 3.5.2001 - Created by mcn. // |
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// // |
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////////////////////////////////////////////////////////////////////////////// |
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#include "HeadSpin.h" |
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#include "plAudioFileReader.h" |
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#include "plAudioCore.h" |
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//#include "hsTimer.h" |
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#include "plUnifiedTime/plUnifiedTime.h" |
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#include "plBufferedFileReader.h" |
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#include "plCachedFileReader.h" |
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#include "plFastWavReader.h" |
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#include "plOGGCodec.h" |
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#include "plWavFile.h" |
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#define kCacheDirName "temp" |
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plAudioFileReader* plAudioFileReader::CreateReader(const plFileName& path, plAudioCore::ChannelSelect whichChan, StreamType type) |
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{ |
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plString ext = path.GetFileExt(); |
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if (type == kStreamWAV) |
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{ |
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bool isWav = (ext.CompareI("wav") == 0); |
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// We want to stream a wav off disk, but this is a compressed file. |
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// Get the uncompressed path. Ignore the requested channel, since it |
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// will have already been split into two files if that is necessary. |
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if (!isWav) |
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{ |
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plFileName cachedPath = IGetCachedPath(path, whichChan); |
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plAudioFileReader *r = new plCachedFileReader(cachedPath, plAudioCore::kAll); |
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if (!r->IsValid()) { |
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// So we tried to play a cached file and it didn't exist |
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// Oops... we should cache it now |
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delete r; |
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ICacheFile(path, true, whichChan); |
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r = new plCachedFileReader(cachedPath, plAudioCore::kAll); |
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} |
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return r; |
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} |
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plAudioFileReader *r = new plFastWAV(path, whichChan); |
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return r; |
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} |
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else if (type == kStreamRAM) |
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return new plBufferedFileReader(path, whichChan); |
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else if (type == kStreamNative) |
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return new plOGGCodec(path, whichChan); |
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return nil; |
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} |
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plAudioFileReader* plAudioFileReader::CreateWriter(const plFileName& path, plWAVHeader& header) |
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{ |
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plAudioFileReader* writer = new plCachedFileReader(path, plAudioCore::kAll); |
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writer->OpenForWriting(path, header); |
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return writer; |
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} |
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plFileName plAudioFileReader::IGetCachedPath(const plFileName& path, plAudioCore::ChannelSelect whichChan) |
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{ |
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// Get the file's path and add our streaming cache folder to it |
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plFileName cachedPath = plFileName::Join(path.StripFileName(), kCacheDirName); |
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// Create the directory first |
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plFileSystem::CreateDir(cachedPath); |
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const char *suffix = ""; |
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if (whichChan == plAudioCore::kLeft) |
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suffix = "-Left.tmp"; |
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else if (whichChan == plAudioCore::kRight) |
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suffix = "-Right.tmp"; |
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else if (whichChan == plAudioCore::kAll) |
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suffix = ".tmp"; |
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// Get the path to the cached version of the file, without the extension |
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return plFileName::Join(cachedPath, path.GetFileNameNoExt() + suffix); |
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} |
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void plAudioFileReader::ICacheFile(const plFileName& path, bool noOverwrite, plAudioCore::ChannelSelect whichChan) |
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{ |
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plFileName cachedPath = IGetCachedPath(path, whichChan); |
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if (!noOverwrite || !plFileInfo(cachedPath).Exists()) |
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{ |
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plAudioFileReader* reader = plAudioFileReader::CreateReader(path, whichChan, kStreamNative); |
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if (!reader || !reader->IsValid()) |
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{ |
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delete reader; |
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return; |
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} |
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plAudioFileReader* writer = CreateWriter(cachedPath, reader->GetHeader()); |
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if (!writer || !writer->IsValid()) |
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{ |
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delete reader; |
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delete writer; |
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return; |
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} |
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uint8_t buffer[4096]; |
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uint32_t numLeft; |
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while ((numLeft = reader->NumBytesLeft()) > 0) |
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{ |
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uint32_t toRead = (numLeft < sizeof(buffer)) ? numLeft : sizeof(buffer); |
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reader->Read(toRead, buffer); |
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writer->Write(toRead, buffer); |
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} |
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writer->Close(); |
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delete writer; |
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delete reader; |
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} |
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} |
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void plAudioFileReader::CacheFile(const plFileName& path, bool splitChannels, bool noOverwrite) |
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{ |
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if (splitChannels) |
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{ |
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ICacheFile(path, noOverwrite, plAudioCore::kLeft); |
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ICacheFile(path, noOverwrite, plAudioCore::kRight); |
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} |
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else |
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{ |
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ICacheFile(path, noOverwrite, plAudioCore::kAll); |
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} |
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}
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