106 lines
3.1 KiB
C++
106 lines
3.1 KiB
C++
/***************************************************************************
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* Copyright (C) 2010
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* by Dimok
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any
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* damages arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any
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* purpose, including commercial applications, and to alter it and
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* redistribute it freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you
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* must not claim that you wrote the original software. If you use
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* this software in a product, an acknowledgment in the product
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* documentation would be appreciated but is not required.
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*
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* 2. Altered source versions must be plainly marked as such, and
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* must not be misrepresented as being the original software.
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*
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* 3. This notice may not be removed or altered from any source
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* distribution.
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*
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* for WiiXplorer 2010
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***************************************************************************/
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#ifndef SOUND_DECODER_HPP
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#define SOUND_DECODER_HPP
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#include "fs/CFile.hpp"
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#include "system/CMutex.h"
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#include "BufferCircle.hpp"
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class SoundDecoder
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{
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public:
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SoundDecoder();
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SoundDecoder(const std::string & filepath);
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SoundDecoder(const u8 * buffer, int size);
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virtual ~SoundDecoder();
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virtual void Lock() { mutex.lock(); }
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virtual void Unlock() { mutex.unlock(); }
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virtual int Read(u8 * buffer, int buffer_size, int pos);
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virtual int Tell() { return CurPos; }
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virtual int Seek(int pos) { CurPos = pos; return file_fd->seek(CurPos, SEEK_SET); }
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virtual int Rewind();
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virtual u16 GetFormat() { return Format; }
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virtual u16 GetSampleRate() { return SampleRate; }
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virtual void Decode();
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virtual bool IsBufferReady() { return SoundBuffer.IsBufferReady(); }
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virtual u8 * GetBuffer() { return SoundBuffer.GetBuffer(); }
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virtual u32 GetBufferSize() { return SoundBuffer.GetBufferSize(); }
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virtual void LoadNext() { SoundBuffer.LoadNext(); }
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virtual bool IsEOF() { return EndOfFile; }
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virtual void SetLoop(bool l) { Loop = l; EndOfFile = false; }
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virtual u8 GetSoundType() { return SoundType; }
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virtual void ClearBuffer() { SoundBuffer.ClearBuffer(); whichLoad = 0; }
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virtual bool IsStereo() { return (GetFormat() & CHANNELS_STEREO) != 0; }
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virtual bool Is16Bit() { return ((GetFormat() & 0xFF) == FORMAT_PCM_16_BIT); }
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virtual bool IsDecoding() { return Decoding; }
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void EnableUpsample(void);
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enum SoundFormats
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{
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FORMAT_PCM_16_BIT = 0x0A,
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FORMAT_PCM_8_BIT = 0x19,
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};
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enum SoundChannels
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{
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CHANNELS_MONO = 0x100,
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CHANNELS_STEREO = 0x200
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};
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enum SoundType
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{
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SOUND_RAW = 0,
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SOUND_MP3,
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SOUND_OGG,
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SOUND_WAV
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};
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protected:
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void Init();
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void Upsample(s16 *src, s16 *dst, u32 nr_src_samples, u32 nr_dst_samples);
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CFile * file_fd;
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BufferCircle SoundBuffer;
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u8 SoundType;
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u16 whichLoad;
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u16 SoundBlocks;
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int SoundBlockSize;
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int CurPos;
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bool ResampleTo48kHz;
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bool Loop;
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bool EndOfFile;
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bool Decoding;
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bool ExitRequested;
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u16 Format;
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u16 SampleRate;
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u8 *ResampleBuffer;
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u32 ResampleRatio;
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CMutex mutex;
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};
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#endif
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