mirror of
https://github.com/wiidev/usbloadergx.git
synced 2024-11-16 16:29:18 +01:00
145 lines
2.9 KiB
C++
145 lines
2.9 KiB
C++
/***************************************************************************
|
|
* 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 <unistd.h>
|
|
#include <malloc.h>
|
|
#include "OggDecoder.hpp"
|
|
|
|
extern "C" int ogg_read(void * punt, int bytes, int blocks, int *f)
|
|
{
|
|
return ((CFile *) f)->read((u8 *) punt, bytes*blocks);
|
|
}
|
|
|
|
extern "C" int ogg_seek(int *f, ogg_int64_t offset, int mode)
|
|
{
|
|
return ((CFile *) f)->seek((u64) offset, mode);
|
|
}
|
|
|
|
extern "C" int ogg_close(int *f)
|
|
{
|
|
((CFile *) f)->close();
|
|
return 0;
|
|
}
|
|
|
|
extern "C" long ogg_tell(int *f)
|
|
{
|
|
return (long) ((CFile *) f)->tell();
|
|
}
|
|
|
|
static ov_callbacks callbacks = {
|
|
(size_t (*)(void *, size_t, size_t, void *)) ogg_read,
|
|
(int (*)(void *, ogg_int64_t, int)) ogg_seek,
|
|
(int (*)(void *)) ogg_close,
|
|
(long (*)(void *)) ogg_tell
|
|
};
|
|
|
|
OggDecoder::OggDecoder(const char * filepath)
|
|
: SoundDecoder(filepath)
|
|
{
|
|
SoundType = SOUND_OGG;
|
|
|
|
if(!file_fd)
|
|
return;
|
|
|
|
OpenFile();
|
|
}
|
|
|
|
OggDecoder::OggDecoder(const u8 * snd, int len)
|
|
: SoundDecoder(snd, len)
|
|
{
|
|
SoundType = SOUND_OGG;
|
|
|
|
if(!file_fd)
|
|
return;
|
|
|
|
OpenFile();
|
|
}
|
|
|
|
OggDecoder::~OggDecoder()
|
|
{
|
|
ExitRequested = true;
|
|
while(Decoding)
|
|
usleep(100);
|
|
|
|
if(file_fd)
|
|
ov_clear(&ogg_file);
|
|
}
|
|
|
|
void OggDecoder::OpenFile()
|
|
{
|
|
if (ov_open_callbacks(file_fd, &ogg_file, NULL, 0, callbacks) < 0)
|
|
{
|
|
delete file_fd;
|
|
file_fd = NULL;
|
|
return;
|
|
}
|
|
|
|
ogg_info = ov_info(&ogg_file, -1);
|
|
Decode();
|
|
}
|
|
|
|
int OggDecoder::GetFormat()
|
|
{
|
|
if(!file_fd)
|
|
return VOICE_STEREO_16BIT;
|
|
|
|
return ((ogg_info->channels == 2) ? VOICE_STEREO_16BIT : VOICE_MONO_16BIT);
|
|
}
|
|
|
|
int OggDecoder::GetSampleRate()
|
|
{
|
|
if(!file_fd)
|
|
return 0;
|
|
|
|
return (int) ogg_info->rate;
|
|
}
|
|
|
|
int OggDecoder::Rewind()
|
|
{
|
|
if(!file_fd)
|
|
return -1;
|
|
|
|
int ret = ov_time_seek(&ogg_file, 0);
|
|
CurPos = 0;
|
|
EndOfFile = false;
|
|
|
|
return ret;
|
|
}
|
|
|
|
int OggDecoder::Read(u8 * buffer, int buffer_size, int pos)
|
|
{
|
|
if(!file_fd)
|
|
return -1;
|
|
|
|
int bitstream = 0;
|
|
|
|
int read = ov_read(&ogg_file, (char *) buffer, buffer_size, &bitstream);
|
|
|
|
if(read > 0)
|
|
CurPos += read;
|
|
|
|
return read;
|
|
}
|