winamp/Src/Plugins/Input/in_vorbis/ExtendedRead.cpp

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2024-09-24 08:54:57 -04:00
#include "main.h"
#include "decoder.h"
extern "C"
{
//returns handle!=0 if successful, 0 if error
//size will return the final nb of bytes written to the output, -1 if unknown
__declspec( dllexport ) intptr_t winampGetExtendedRead_openW(const wchar_t *fn, int *size, int *bps, int *nch, int *srate) {
VorbisFile * f = VorbisFile::Create(fn,false);
if(f) {
if(!*bps) *bps=16; // FUCKO HAX
Decoder * d = new Decoder();
d->Init(f, *bps, *nch, false, false);
*nch = (int)d->nch;
*srate = (int)d->sr;
*bps = (int)d->bps;
*size = (int)(f->Length() * (double)((*nch) * (*srate) * (*bps/8)));
return (intptr_t)d;
}
return 0;
}
__declspec( dllexport ) intptr_t winampGetExtendedRead_openW_float(const wchar_t *fn, int *size, int *bps, int *nch, int *srate) {
VorbisFile * f = VorbisFile::Create(fn,false);
if(f) {
Decoder * d = new Decoder();
d->Init(f, *bps, *nch, true, false);
*nch = (int)d->nch;
*srate = (int)d->sr;
*bps = (int)d->bps;
*size = (int)(f->Length() * (double)((*nch) * (*srate) * (*bps/8)));
return (intptr_t)d;
}
return 0;
}
//returns nb of bytes read. -1 if read error (like CD ejected). if (ret<len), EOF is assumed
__declspec( dllexport ) intptr_t winampGetExtendedRead_getData(intptr_t handle, char *dest, size_t len, int *killswitch) {
Decoder * d = (Decoder *)handle;
size_t used = 0;
for(;;) {
used += (UINT)d->Read((UINT)(len - used),dest + used);
if(used >= len) break;
if(!d->DoFrame()) break;
if(*killswitch) break;
if (used)
return used;
}
return used;
}
// return nonzero on success, zero on failure.
__declspec( dllexport ) int winampGetExtendedRead_setTime(intptr_t handle, int millisecs) {
Decoder * d = (Decoder *)handle;
d->Flush();
return !d->Seek(((double)millisecs) / 1000.0);
}
__declspec( dllexport ) void winampGetExtendedRead_close(intptr_t handle) {
Decoder * d = (Decoder *)handle;
d->Flush();
delete d->file;
delete d;
}
}