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