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// Copyright (c) 2000-2001 Brad Hughes <bhughes@trolltech.com>
//
// Use, modification and distribution is allowed without limitation,
// warranty, or liability of any kind.
//
#ifndef DECODER_MAD_H
#define DECODER_MAD_H
class DecoderMAD;
#include <qmmp/decoder.h>
#include "decodermadfactory.h"
extern "C"
{
#include <mad.h>
}
class DecoderMAD : public Decoder
{
public:
DecoderMAD(QObject *parent = 0, DecoderFactory *d = 0,
QIODevice *i = 0, Output *o = 0);
virtual ~DecoderMAD();
// standard decoder API
bool initialize();
double lengthInSeconds();
void seek(double);
void stop();
private:
// thread run function
void run();
enum mad_flow madOutput();
enum mad_flow madError(struct mad_stream *, struct mad_frame *);
// helper functions
void flush(bool = FALSE);
void deinit();
bool findHeader();
bool findXingHeader(struct mad_bitptr, unsigned int);
bool inited, user_stop, done, finish, derror, eof, useeq;
double totalTime, seekTime;
int channels;
unsigned long bitrate;
long freq, len;
unsigned int bks;
mad_fixed_t eqbands[32];
// file input buffer
char *input_buf;
unsigned long input_bytes;
// output buffer
char *output_buf;
unsigned long output_bytes, output_at, output_size;
// MAD decoder
struct
{
int flags;
unsigned long frames;
unsigned long bytes;
unsigned char toc[100];
long scale;
} xing;
enum
{
XING_FRAMES = 0x0001,
XING_BYTES = 0x0002,
XING_TOC = 0x0004,
XING_SCALE = 0x0008
};
struct mad_stream stream;
struct mad_frame frame;
struct mad_synth synth;
};
#endif // DECODER_MAD_H
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