139 lines
3.0 KiB
C++
139 lines
3.0 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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#include <unistd.h>
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#include <malloc.h>
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#include "dynamic_libs/os_functions.h"
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#include "OggDecoder.hpp"
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static int ogg_read(void * punt, int bytes, int blocks, int *f)
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{
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return ((CFile *) f)->read((u8 *) punt, bytes*blocks);
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}
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static int ogg_seek(int *f, ogg_int64_t offset, int mode)
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{
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return ((CFile *) f)->seek((u64) offset, mode);
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}
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static int ogg_close(int *f)
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{
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((CFile *) f)->close();
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return 0;
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}
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static long ogg_tell(int *f)
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{
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return (long) ((CFile *) f)->tell();
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}
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static ov_callbacks callbacks = {
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(size_t (*)(void *, size_t, size_t, void *)) ogg_read,
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(int (*)(void *, ogg_int64_t, int)) ogg_seek,
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(int (*)(void *)) ogg_close,
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(long (*)(void *)) ogg_tell
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};
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OggDecoder::OggDecoder(const char * filepath)
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: SoundDecoder(filepath)
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{
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SoundType = SOUND_OGG;
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if(!file_fd)
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return;
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OpenFile();
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}
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OggDecoder::OggDecoder(const u8 * snd, int len)
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: SoundDecoder(snd, len)
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{
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SoundType = SOUND_OGG;
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if(!file_fd)
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return;
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OpenFile();
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}
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OggDecoder::~OggDecoder()
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{
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ExitRequested = true;
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while(Decoding)
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usleep(100);
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if(file_fd)
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ov_clear(&ogg_file);
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}
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void OggDecoder::OpenFile()
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{
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if (ov_open_callbacks(file_fd, &ogg_file, NULL, 0, callbacks) < 0)
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{
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delete file_fd;
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file_fd = NULL;
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return;
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}
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ogg_info = ov_info(&ogg_file, -1);
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if(!ogg_info)
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{
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ov_clear(&ogg_file);
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delete file_fd;
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file_fd = NULL;
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return;
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}
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Format = ((ogg_info->channels == 2) ? (FORMAT_PCM_16_BIT | CHANNELS_STEREO) : (FORMAT_PCM_16_BIT | CHANNELS_MONO));
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SampleRate = ogg_info->rate;
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}
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int OggDecoder::Rewind()
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{
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if(!file_fd)
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return -1;
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int ret = ov_time_seek(&ogg_file, 0);
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CurPos = 0;
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EndOfFile = false;
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return ret;
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}
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int OggDecoder::Read(u8 * buffer, int buffer_size, int pos)
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{
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if(!file_fd)
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return -1;
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int bitstream = 0;
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int read = ov_read(&ogg_file, (char *) buffer, buffer_size, &bitstream);
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if(read > 0)
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CurPos += read;
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return read;
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}
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