/*************************************************************************** * Copyright (C) 2010 * by Dimok * * This software is provided 'as-is', without any express or implied * warranty. In no event will the authors be held liable for any * damages arising from the use of this software. * * Permission is granted to anyone to use this software for any * purpose, including commercial applications, and to alter it and * redistribute it freely, subject to the following restrictions: * * 1. The origin of this software must not be misrepresented; you * must not claim that you wrote the original software. If you use * this software in a product, an acknowledgment in the product * documentation would be appreciated but is not required. * * 2. Altered source versions must be plainly marked as such, and * must not be misrepresented as being the original software. * * 3. This notice may not be removed or altered from any source * distribution. * * for WiiXplorer 2010 ***************************************************************************/ #include #include "SoundHandler.hpp" #include "Mp3Decoder.hpp" #include "OggDecoder.hpp" #include "WavDecoder.hpp" #include "AifDecoder.hpp" #include "BNSDecoder.hpp" #include "gecko/gecko.h" #include "memory/mem2.hpp" SoundHandler SoundHandle; void SoundHandler::Init() { Decoding = false; ExitRequested = false; for(u32 i = 0; i < MAX_DECODERS; ++i) DecoderList[i] = NULL; ThreadStack = (u8 *)MEM2_memalign(32, 32768); if(!ThreadStack) return; LWP_CreateThread(&SoundThread, UpdateThread, this, ThreadStack, 32768, LWP_PRIO_HIGHEST); gprintf("SHND: Running sound thread\n"); } void SoundHandler::Cleanup() { gprintf("SHND: Stopping sound thread\n"); ExitRequested = true; ThreadSignal(); LWP_JoinThread(SoundThread, NULL); SoundThread = LWP_THREAD_NULL; if(ThreadStack != NULL) { MEM2_free(ThreadStack); ThreadStack = NULL; } ClearDecoderList(); gprintf("SHND: Stopped sound thread\n"); } void SoundHandler::AddDecoder(int voice, const char * filepath) { if(voice < 0 || voice >= MAX_DECODERS) return; if(DecoderList[voice] != NULL) RemoveDecoder(voice); DecoderList[voice] = GetSoundDecoder(filepath); } void SoundHandler::AddDecoder(int voice, const u8 * snd, int len) { if(voice < 0 || voice >= MAX_DECODERS) { gprintf("SoundHandler: Invalid voice!\n"); return; } if(snd == NULL || len == 0) { gprintf("SoundHandler: Invalid sound!\n"); return; } if(DecoderList[voice] != NULL) RemoveDecoder(voice); DecoderList[voice] = GetSoundDecoder(snd, len); } void SoundHandler::RemoveDecoder(int voice) { if(voice < 0 || voice >= MAX_DECODERS) return; if(DecoderList[voice] != NULL) { (*DecoderList[voice]).ClearBuffer(); if(DecoderList[voice]->GetSoundType() == SOUND_OGG) delete((OggDecoder *)DecoderList[voice]); else if(DecoderList[voice]->GetSoundType() == SOUND_MP3) delete((Mp3Decoder *)DecoderList[voice]); else if(DecoderList[voice]->GetSoundType() == SOUND_WAV) delete((WavDecoder *)DecoderList[voice]); else if(DecoderList[voice]->GetSoundType() == SOUND_AIF) delete((AifDecoder *)DecoderList[voice]); else if(DecoderList[voice]->GetSoundType() == SOUND_BNS) delete((BNSDecoder *)DecoderList[voice]); else delete DecoderList[voice]; DecoderList[voice] = NULL; } } void SoundHandler::ClearDecoderList() { for(u32 i = 0; i < MAX_DECODERS; ++i) RemoveDecoder(i); } static inline bool CheckMP3Signature(const u8 * buffer) { const char MP3_Magic[][3] = { {'I', 'D', '3'}, //'ID3' {0xff, 0xfe}, //'MPEG ADTS, layer III, v1.0 [protected]', 'mp3', 'audio/mpeg'), {0xff, 0xff}, //'MPEG ADTS, layer III, v1.0', 'mp3', 'audio/mpeg'), {0xff, 0xfa}, //'MPEG ADTS, layer III, v1.0 [protected]', 'mp3', 'audio/mpeg'), {0xff, 0xfb}, //'MPEG ADTS, layer III, v1.0', 'mp3', 'audio/mpeg'), {0xff, 0xf2}, //'MPEG ADTS, layer III, v2.0 [protected]', 'mp3', 'audio/mpeg'), {0xff, 0xf3}, //'MPEG ADTS, layer III, v2.0', 'mp3', 'audio/mpeg'), {0xff, 0xf4}, //'MPEG ADTS, layer III, v2.0 [protected]', 'mp3', 'audio/mpeg'), {0xff, 0xf5}, //'MPEG ADTS, layer III, v2.0', 'mp3', 'audio/mpeg'), {0xff, 0xf6}, //'MPEG ADTS, layer III, v2.0 [protected]', 'mp3', 'audio/mpeg'), {0xff, 0xf7}, //'MPEG ADTS, layer III, v2.0', 'mp3', 'audio/mpeg'), {0xff, 0xe2}, //'MPEG ADTS, layer III, v2.5 [protected]', 'mp3', 'audio/mpeg'), {0xff, 0xe3}, //'MPEG ADTS, layer III, v2.5', 'mp3', 'audio/mpeg'), }; if(buffer[0] == MP3_Magic[0][0] && buffer[1] == MP3_Magic[0][1] && buffer[2] == MP3_Magic[0][2]) { return true; } for(int i = 1; i < 13; i++) { if(buffer[0] == MP3_Magic[i][0] && buffer[1] == MP3_Magic[i][1]) return true; } return false; } SoundDecoder * SoundHandler::GetSoundDecoder(const char * filepath) { u32 magic; CFile f(filepath, "rb"); if(f.size() == 0) return NULL; do { f.read((u8 *) &magic, 1); } while(((u8 *) &magic)[0] == 0 && f.tell() < f.size()); if(f.tell() == f.size()) return NULL; f.seek(f.tell()-1, SEEK_SET); f.read((u8 *) &magic, 4); f.close(); /* gprintf("SHND: Searching decoder for magic\n"); ghexdump((u8 *) &magic, 4); */ if(memcmp(&magic, "OggS", 4) == 0) return new OggDecoder(filepath); else if(memcmp(&magic, "RIFF", 4) == 0) return new WavDecoder(filepath); else if(memcmp(&magic, "BNS ", 4) == 0) return new BNSDecoder(filepath); else if(memcmp(&magic, "FORM", 4) == 0) return new AifDecoder(filepath); else if(CheckMP3Signature((u8 *) &magic) == true) return new Mp3Decoder(filepath); return new SoundDecoder(filepath); } SoundDecoder * SoundHandler::GetSoundDecoder(const u8 * sound, int length) { const u8 * check = sound; int counter = 0; while(check[0] == 0 && counter < length) { check++; counter++; } if(counter >= length) return NULL; u32 * magic = (u32 *)check; if(memcmp(&magic[0], "OggS", 4) == 0) return new OggDecoder(sound, length); else if(memcmp(&magic[0], "RIFF", 4) == 0) return new WavDecoder(sound, length); else if(memcmp(&magic[0], "BNS ", 4) == 0) return new BNSDecoder(sound, length); else if(memcmp(&magic[0], "FORM", 4) == 0) return new AifDecoder(sound, length); else if(CheckMP3Signature(check) == true) return new Mp3Decoder(sound, length); return new SoundDecoder(sound, length); } void * SoundHandler::UpdateThread(void *arg) { ((SoundHandler *) arg)->InternalSoundUpdates(); return NULL; } void SoundHandler::InternalSoundUpdates() { u16 i = 0; LWP_InitQueue(&ThreadQueue); while(!ExitRequested) { LWP_ThreadSleep(ThreadQueue); for(i = 0; i < MAX_DECODERS; ++i) { if(DecoderList[i] == NULL) continue; Decoding = true; DecoderList[i]->Decode(); } Decoding = false; } LWP_CloseQueue(ThreadQueue); ThreadQueue = LWP_TQUEUE_NULL; }