mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-28 03:00:35 +00:00
58dede8409
Original commit message from CVS: MPEG2 decoder fixes, unified MPEG System stream parser. an mpeg encoder.
59 lines
1.4 KiB
C
59 lines
1.4 KiB
C
#ifndef __GST_GETBITS_H__
|
|
#define __GST_GETBITS_H__
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <config.h>
|
|
#undef HAVE_LIBMMX
|
|
|
|
#include <byteswap.h>
|
|
|
|
#ifdef HAVE_LIBMMX
|
|
#include <mmx.h>
|
|
#endif /* HAVE_LIBMMX */
|
|
#ifdef HAVE_LIBSSE
|
|
#include <sse.h>
|
|
#endif /* HAVE_LIBSSE */
|
|
|
|
typedef struct _gst_getbits_t gst_getbits_t;
|
|
|
|
/* breaks in structure show alignment on quadword boundaries */
|
|
/* FIXME: need to find out how to force GCC to align this to octwords */
|
|
struct _gst_getbits_t {
|
|
unsigned char *ptr;
|
|
unsigned long *longptr;
|
|
unsigned char *endptr;
|
|
unsigned long length;
|
|
long bits;
|
|
unsigned long dword;
|
|
unsigned long temp;
|
|
|
|
unsigned long (*getbits)(gst_getbits_t *gb,unsigned long bits); /* dword */
|
|
void (*backbits)(gst_getbits_t *gb,unsigned long bits); /* dword */
|
|
void (*backbytes)(gst_getbits_t *gb,unsigned long bytes); /* dword */
|
|
|
|
#ifdef HAVE_LIBMMX
|
|
mmx_t qword; /* qword */
|
|
#endif /* HAVE_LIBMMX */
|
|
|
|
#ifdef HAVE_LIBSSE
|
|
sse_t oword; /* oword */
|
|
#endif /* HAVE_LIBSSE */
|
|
};
|
|
|
|
|
|
#define GST_GETBITS_INLINE
|
|
|
|
#ifdef GST_GETBITS_INLINE
|
|
#include "gstgetbits_inl.h"
|
|
#else
|
|
|
|
void gst_getbits_init(gst_getbits_t *gb);
|
|
void gst_getbits_newbuf(gst_getbits_t *gb,unsigned char *buffer);
|
|
|
|
#define getbits(gb,bits) (((gb)->getbits)(gb,bits))
|
|
#define getbits_back(gb,bits) (((gb)->backbits)(gb,bits))
|
|
#define getbits_back_bytes(gb,bytes) (((gb)->backbytes)(gb,bytes))
|
|
#endif
|
|
|
|
#endif /* __GST_GETBITS_H__ */
|