-SUBDIRS = bytestream
+SUBDIRS = bytestream control getbits putbits
-DIST_SUBDIRS = bytestream
+DIST_SUBDIRS = bytestream control getbits putbits
--- /dev/null
+librarydir = $(libdir)/gst
+
+library_LTLIBRARIES = libgstgetbits.la
+
+if HAVE_CPU_I386
+GSTARCH_SRCS = gstgetbits_i386.s
+else
+GSTARCH_SRCS =
+endif
+
+libgstgetbits_la_SOURCES = getbits.c gstgetbits_inl.h gstgetbits_generic.c $(GSTARCH_SRCS)
+libgstgetbits_la_LIBADD = $(GST_LIBS)
+libgstgetbits_la_CFLAGS = $(GST_CFLAGS) -funroll-all-loops -finline-functions -ffast-math
+EXTRA_libgstgetbits_la_SOURCES = gstgetbits_i386.s
+
+libgstgetbitsincludedir = $(includedir)/gst/getbits
+libgstgetbitsinclude_HEADERS = getbits.h
+
+noinst_HEADERS = getbits.h gstgetbits_inl.h
+
+# check_PROGRAMS = gbtest
+
--- /dev/null
+#include <stdlib.h>
+#include "gstgetbits.h"
+
+char *print_bits(unsigned long bits,int size) {
+ char *ret = (char *)malloc(size+1);
+ int i;
+ ret[size] = 0;
+ for (i=0;i<size;i++) {
+ if (bits & (1<<i))
+ ret[(size-1)-i] = '1';
+ else
+ ret[(size-1)-i] = '0';
+ }
+ return ret;
+}
+
+static unsigned char testbuffer[] =
+{
+ 0x11, 0x22, 0x44, 0x88, 0xCC, 0xEE,0xFF,0x11
+};
+
+void empty(gst_getbits_t *gb, void *data) {
+ printf("buffer empty\n");
+
+ gst_getbits_newbuf(gb,(unsigned char *)testbuffer, 7);
+}
+
+int main(int argc,char *argv[]) {
+ gst_getbits_t gb;
+ int i, j;
+ int bits;
+
+ gst_getbits_init(&gb, NULL, NULL);
+ gst_getbits_newbuf(&gb,(unsigned char *)testbuffer, 7);
+
+ for (i=0;i<7;i++) {
+ for (j=0;j<8;j++) {
+ printf("%lu",gst_getbits2(&gb));
+ gst_backbitsn(&gb, 1);
+ }
+ printf(" = %01x\n", testbuffer[i]);
+ }
+
+ gst_getbits_newbuf(&gb,(unsigned char *)testbuffer, 7);
+
+ bits = gst_getbits8(&gb);
+ printf("%08x <-> 00000011 %lu\n",bits, gb.bits);
+ bits = gst_getbits8(&gb);
+ printf("%08x <-> 00000022 %lu\n",bits, gb.bits);
+ bits = gst_getbits8(&gb);
+ printf("%08x <-> 00000044 %lu\n",bits, gb.bits);
+ bits = gst_getbits8(&gb);
+ printf("%08x <-> 00000088 %lu\n",bits, gb.bits);
+ bits = gst_getbits6(&gb);
+ printf("%08x <-> 00000033 %lu\n",bits, gb.bits);
+
+ gst_backbitsn(&gb, 16);
+
+ bits = gst_getbits10(&gb);
+ printf("%08x <-> 00000088 \n",bits);
+
+ gst_getbits_newbuf(&gb,(unsigned char *)testbuffer, 7);
+
+ bits = gst_getbits8(&gb);
+ printf("%08x <-> 00000011 \n",bits);
+ bits = gst_getbits8(&gb);
+ printf("%08x <-> 00000022 \n",bits);
+ bits = gst_getbits8(&gb);
+ printf("%08x <-> 00000044 \n",bits);
+
+ bits = gst_getbits6(&gb);
+ printf("%08x <-> 00000022 \n",bits);
+
+ gst_backbitsn(&gb, 19);
+
+ bits = gst_getbits19(&gb);
+ printf("%08x <-> 00009122 \n",bits);
+
+ bits = gst_getbits10(&gb);
+ printf("%08x <-> 000000cc \n",bits);
+
+ gst_backbitsn(&gb, 8);
+
+ gst_backbitsn(&gb, 19);
+
+ gst_backbitsn(&gb, 8);
+
+ bits = gst_getbits19(&gb);
+ printf("%08x <-> 00012244 \n",bits);
+ bits = gst_getbits8(&gb);
+ printf("%08x <-> 00000088 \n",bits);
+
+ return 0;
+}
--- /dev/null
+
+#include "config.h"
+
+#include "gstgetbits.h"
+
+/* Defined in gstgetbits_i386.s */
+extern unsigned long _gst_get1bit_i386(gst_getbits_t *gb, unsigned long bits);
+extern unsigned long _gst_getbits_i386(gst_getbits_t *gb, unsigned long bits);
+extern unsigned long _gst_getbits_fast_i386(gst_getbits_t *gb, unsigned long bits);
+extern unsigned long _gst_showbits_i386(gst_getbits_t *gb, unsigned long bits);
+extern void _gst_flushbits_i386(gst_getbits_t *gb, unsigned long bits);
+extern void _gst_getbits_back_i386(gst_getbits_t *gb, unsigned long bits);
+
+/* Defined in gstgetbits_generic.c */
+extern unsigned long _gst_getbits_int_cb(gst_getbits_t *gb, unsigned long bits);
+extern unsigned long _gst_get1bit_int(gst_getbits_t *gb, unsigned long bits);
+extern unsigned long _gst_getbits_int(gst_getbits_t *gb, unsigned long bits);
+extern unsigned long _gst_getbits_fast_int(gst_getbits_t *gb, unsigned long bits);
+extern unsigned long _gst_showbits_int(gst_getbits_t *gb, unsigned long bits);
+extern void _gst_flushbits_int(gst_getbits_t *gb, unsigned long bits);
+extern void _gst_getbits_back_int(gst_getbits_t *gb, unsigned long bits);
+
+
+unsigned long gst_getbits_nBitMask[] = {
+ 0x00000000, 0x80000000, 0xc0000000, 0xe0000000,
+ 0xf0000000, 0xf8000000, 0xfc000000, 0xfe000000,
+ 0xff000000, 0xff800000, 0xffc00000, 0xffe00000,
+ 0xfff00000, 0xfff80000, 0xfffc0000, 0xfffe0000,
+ 0xffff0000, 0xffff8000, 0xffffc000, 0xffffe000,
+ 0xfffff000, 0xfffff800, 0xfffffc00, 0xfffffe00,
+ 0xffffff00, 0xffffff80, 0xffffffc0, 0xffffffe0,
+ 0xfffffff0, 0xfffffff8, 0xfffffffc, 0xfffffffe};
+
+unsigned long _getbits_masks[] = {
+ 0x00000000,
+ 0x00000001, 0x00000003, 0x00000007, 0x0000000f,
+ 0x0000001f, 0x0000003f, 0x0000007f, 0x000000ff,
+ 0x000001ff, 0x000003ff, 0x000007ff, 0x00000fff,
+ 0x00001fff, 0x00003fff, 0x00007fff, 0x0000ffff,
+ 0x0001ffff, 0x0003ffff, 0x0007ffff, 0x000fffff,
+ 0x001fffff, 0x003fffff, 0x007fffff, 0x00ffffff,
+ 0x01ffffff, 0x03ffffff, 0x07ffffff, 0x0fffffff,
+ 0x1fffffff, 0x3fffffff, 0x7fffffff, 0xffffffff,
+};
+
+#ifdef HAVE_LIBMMX
+unsigned long _getbits_64_minus_index[] = {
+ 64,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,
+ 40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,
+ 16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1 };
+
+/* this routine taken from Intel AppNote AP-527:
+ "Using MMX[tm] Instructions to Get Bits From a Data Stream"
+ written in C with libmmx to *closely* mimic Intel's ASM implementation
+
+ this isn't as cycle-efficient, due to the simple fact that I must call
+ emms() at the end. all state must be kept in *gb, not in registers */
+unsigned long _gst_getbits_mmx(gst_getbits_t *gb,unsigned long bits) {
+ signed long remaining;
+ unsigned long result;
+
+ /* NOTE: this is a code-size optimization Intel seems to have missed!
+ according to the MMX Programmer's Reference Manual, Chapter 5,
+ neither movd nor movq have any effect on the flags. that means you
+ can put them before the sub and jl in their code, which I've done
+ symbolically in this C code. gcc is probably going to lose horribly,
+ I'll do an inline asm version later. I've a point to prove ;-) */
+ /* find the right shift value, put it in mm3 */
+ movd_m2r(_getbits_64_minus_index[bits],mm3);
+ /* load the current quadword into mm0 */
+ movq_m2r(gb->qword,mm0);
+ /* copy it to mm2 */
+ movq_r2r(mm0,mm2);
+
+ remaining = gb->bits - bits;
+
+ if (remaining <= 0) {
+ unsigned long dword1,dword2;
+
+ /* shift the pointer by 64 bits (8 bytes) */
+ gb->ptr += 8;
+ /* add 64 to bits remaining, to bring it positive */
+ remaining += 64;
+
+ /* grab the first 32 bits from the buffer and swap them around */
+ dword1 = swab32(*(gb->ptr-8));
+ /* grab the second 32 bits, swap */
+ dword2 = swab32(*(gb->ptr-4));
+
+ /* put second dword in mm4 */
+ movd_m2r(dword2,mm4);
+ /* shift mm2 over to make room for new bits */
+ psrlq_r2r(mm3,mm2);
+
+ /* put first dword in mm1 */
+ movd_m2r(dword1,mm1);
+ /* shift second dword up 32 bits */
+ psrlq_i2r(32,mm4);
+
+ /* put the shift counter in mm3 */
+ movd_m2r(remaining,mm3);
+ /* combine the swapped data in mm4 */
+ por_r2r(mm1,mm4);
+
+ /* save off the bits in mm4 to mm0 */
+ movq_r2r(mm4,mm0);
+ /* get the new low-order bits in mm4, shifted by 'mm3' */
+ psrlq_r2r(mm3,mm4);
+
+ /* save off new remaining bits */
+ gb->bits = remaining;
+ /* combine bits into mm2 */
+ por_r2r(mm2,mm4);
+
+ /* save off the result */
+ movd_r2m(mm2,result);
+ /* get rid of the bits we just read */
+ psllq_r2r(mm1,mm0);
+
+ /* save off mm0 */
+ movq_r2m(mm0,gb->qword);
+
+ /* finished with MMX */
+ emms();
+
+ /* we have what we came for */
+ return(result);
+ } else {
+ /* load the number of bits requested into mm1 */
+ movd_m2r(bits,mm1);
+ /* shift the quadword in mm2 by 'mm3' bits */
+ psrlq_r2r(mm3,mm2);
+
+ /* update the number of valid bits */
+ gb->bits = remaining;
+
+ /* save off the remaining bits */
+ movd_r2m(mm2,result);
+ /* discard those bits in mm0 */
+ psllq_r2r(mm1,mm0);
+
+ /* save off mm0 */
+ movq_r2m(mm0,gb->qword);
+ /* finished with MMX */
+ emms();
+
+ /* we have what we came for */
+ return(result);
+ }
+}
+#endif /* HAVE_LIBMMX */
+
+unsigned long _gst_getbyte(gst_getbits_t *gb, unsigned long bits) {
+ return *gb->ptr++;
+}
+
+/* initialize the getbits structure with the proper getbits func */
+void gst_getbits_init(gst_getbits_t *gb, GstGetbitsCallback callback, void *data) {
+ gb->ptr = NULL;
+ gb->bits = 0;
+ gb->callback = callback;
+ gb->data = data;
+
+#ifdef HAVE_LIBMMX
+ if (1) {
+ gb->getbits = _gst_getbits_mmx;
+// gb->backbits = _gst_getbits_back_mmx;
+// gb->backbytes = _gst_getbits_byteback_mmx;
+// printf("gstgetbits: using MMX optimized versions\n");
+ } else
+#endif /* HAVE_LIBMMX */
+ {
+ if (gb->callback) {
+ gb->getbits = _gst_getbits_int_cb;
+ gb->showbits = _gst_showbits_int;
+ gb->flushbits = _gst_flushbits_int;
+ gb->backbits = _gst_getbits_back_int;
+// printf("gstgetbits: using callback versions\n");
+ }
+ else {
+#ifdef HAVE_CPU_I386
+ gb->get1bit = _gst_get1bit_i386;
+ gb->getbits = _gst_getbits_i386;
+ gb->getbits_fast = _gst_getbits_fast_i386;
+ gb->getbyte = _gst_getbyte;
+ gb->show1bit = _gst_showbits_i386;
+ gb->showbits = _gst_showbits_i386;
+ gb->flushbits = _gst_flushbits_i386;
+ gb->backbits = _gst_getbits_back_i386;
+// printf("gstgetbits: using i386 optimized versions\n");
+#else
+ gb->get1bit = _gst_get1bit_int;
+ gb->getbits = _gst_getbits_int;
+ gb->getbits_fast = _gst_getbits_fast_int;
+ gb->getbyte = _gst_getbyte;
+ gb->show1bit = _gst_showbits_int;
+ gb->showbits = _gst_showbits_int;
+ gb->flushbits = _gst_flushbits_int;
+ gb->backbits = _gst_getbits_back_int;
+// printf("gstgetbits: using normal versions\n");
+#endif
+ }
+ }
+}
+
+/* set up the getbits structure with a new buffer */
+void gst_getbits_newbuf(gst_getbits_t *gb,unsigned char *buffer, unsigned long len) {
+ gb->ptr = buffer;
+ gb->endptr = buffer+len;
+ gb->bits = 0;
+#ifdef HAVE_LIBMMX
+// gb->qword = 0;
+#endif /* HAVE_LIBMMX */
+}
--- /dev/null
+#ifndef __GST_GETBITS_H__
+#define __GST_GETBITS_H__
+
+#include <stdio.h>
+
+// getbits is critical, we need to forcibly disable DEBUG
+#define GST_DEBUG_FORCE_DISABLE
+#include <gst/gst.h>
+
+/* disabled for now */
+#undef HAVE_LIBMMX
+
+#ifdef HAVE_LIBMMX
+#include <mmx.h>
+#endif /* HAVE_LIBMMX */
+#ifdef HAVE_LIBSSE
+#include <sse.h>
+#endif /* HAVE_LIBSSE */
+
+#define swab32(x) GUINT32_FROM_BE(x)
+
+typedef struct _gst_getbits_t gst_getbits_t;
+typedef void (*GstGetbitsCallback) (gst_getbits_t *gb, void *data);
+
+/* 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;
+
+ GstGetbitsCallback callback;
+ void *data;
+
+ unsigned long (*get1bit)(gst_getbits_t *gb, unsigned long bits);
+ unsigned long (*getbits)(gst_getbits_t *gb, unsigned long bits);
+ unsigned long (*getbits_fast)(gst_getbits_t *gb, unsigned long bits);
+ unsigned long (*getbyte)(gst_getbits_t *gb, unsigned long bits);
+ unsigned long (*show1bit)(gst_getbits_t *gb, unsigned long bits);
+ unsigned long (*showbits)(gst_getbits_t *gb, unsigned long bits);
+ void (*flushbits)(gst_getbits_t *gb, unsigned long bits);
+ void (*backbits)(gst_getbits_t *gb, unsigned long bits);
+
+#ifdef HAVE_LIBMMX
+ mmx_t qword; /* qword */
+#endif /* HAVE_LIBMMX */
+
+#ifdef HAVE_LIBSSE
+ sse_t oword; /* oword */
+#endif /* HAVE_LIBSSE */
+};
+
+
+#ifdef GST_GETBITS_INLINE
+#include "gstgetbits_inl.h"
+#else
+
+void gst_getbits_init(gst_getbits_t *gb, GstGetbitsCallback callback, void *data);
+void gst_getbits_newbuf(gst_getbits_t *gb, unsigned char *buffer, unsigned long len);
+
+#define gst_getbits_bitoffset(gb) \
+( \
+ (-(gb)->bits)&0x7 \
+)
+
+#define gst_getbits_align_byte(gb)
+
+#define gst_getbits_bufferpos(gb) ((gb)->ptr)
+
+#define gst_getbits_bytesleft(gb) ((gb)->endptr - (gb)->ptr)
+
+#define gst_getbits_bitsleft(gb) (((gb)->endptr - (gb)->ptr)*8 - ((-(gb)->bits)&0x7))
+
+#define gst_get1bit(gb) (((gb)->get1bit)(gb, 1))
+#define gst_getbitsX(gb,bits) (((gb)->getbits)(gb,bits))
+#define gst_getbits_fastX(gb,bits) (((gb)->getbits_fast)(gb,bits))
+#define gst_show1bit(gb,bits) (((gb)->show1bit)(gb,bits))
+#define gst_showbitsX(gb,bits) (((gb)->showbits)(gb,bits))
+#define gst_flushbitsX(gb,bits) (((gb)->flushbits)(gb,bits))
+#define gst_backbitsX(gb,bits) (((gb)->backbits)(gb,bits))
+
+#define gst_getbyte(gb) (((gb)->getbyte)(gb,8))
+
+#define gst_getbits_fastn(gb,n) gst_getbits_fastX(gb, n)
+
+#define gst_getbitsn(gb,n) gst_getbitsX(gb, n)
+#define gst_getbits1(gb) gst_get1bit(gb)
+#define gst_getbits2(gb) gst_getbits_fastX(gb, 2)
+#define gst_getbits3(gb) gst_getbits_fastX(gb, 3)
+#define gst_getbits4(gb) gst_getbits_fastX(gb, 4)
+#define gst_getbits5(gb) gst_getbits_fastX(gb, 5)
+#define gst_getbits6(gb) gst_getbits_fastX(gb, 6)
+#define gst_getbits7(gb) gst_getbits_fastX(gb, 7)
+#define gst_getbits8(gb) gst_getbits_fastX(gb, 8)
+#define gst_getbits9(gb) gst_getbits_fastX(gb, 9)
+#define gst_getbits10(gb) gst_getbitsX(gb, 10)
+#define gst_getbits11(gb) gst_getbitsX(gb, 11)
+#define gst_getbits12(gb) gst_getbitsX(gb, 12)
+#define gst_getbits13(gb) gst_getbitsX(gb, 13)
+#define gst_getbits14(gb) gst_getbitsX(gb, 14)
+#define gst_getbits15(gb) gst_getbitsX(gb, 15)
+#define gst_getbits16(gb) gst_getbitsX(gb, 16)
+#define gst_getbits17(gb) gst_getbitsX(gb, 17)
+#define gst_getbits18(gb) gst_getbitsX(gb, 18)
+#define gst_getbits19(gb) gst_getbitsX(gb, 19)
+#define gst_getbits20(gb) gst_getbitsX(gb, 20)
+#define gst_getbits21(gb) gst_getbitsX(gb, 21)
+#define gst_getbits22(gb) gst_getbitsX(gb, 22)
+#define gst_getbits23(gb) gst_getbitsX(gb, 23)
+
+#define gst_showbitsn(gb,n) gst_showbitsX(gb, n)
+#define gst_showbits1(gb) gst_show1bit(gb, 1)
+#define gst_showbits2(gb) gst_showbitsX(gb, 2)
+#define gst_showbits3(gb) gst_showbitsX(gb, 3)
+#define gst_showbits4(gb) gst_showbitsX(gb, 4)
+#define gst_showbits5(gb) gst_showbitsX(gb, 5)
+#define gst_showbits6(gb) gst_showbitsX(gb, 6)
+#define gst_showbits7(gb) gst_showbitsX(gb, 7)
+#define gst_showbits8(gb) gst_showbitsX(gb, 8)
+#define gst_showbits9(gb) gst_showbitsX(gb, 9)
+#define gst_showbits10(gb) gst_showbitsX(gb, 10)
+#define gst_showbits11(gb) gst_showbitsX(gb, 11)
+#define gst_showbits12(gb) gst_showbitsX(gb, 12)
+#define gst_showbits13(gb) gst_showbitsX(gb, 13)
+#define gst_showbits14(gb) gst_showbitsX(gb, 14)
+#define gst_showbits15(gb) gst_showbitsX(gb, 15)
+#define gst_showbits16(gb) gst_showbitsX(gb, 16)
+#define gst_showbits17(gb) gst_showbitsX(gb, 17)
+#define gst_showbits18(gb) gst_showbitsX(gb, 18)
+#define gst_showbits19(gb) gst_showbitsX(gb, 19)
+#define gst_showbits20(gb) gst_showbitsX(gb, 20)
+#define gst_showbits21(gb) gst_showbitsX(gb, 21)
+#define gst_showbits22(gb) gst_showbitsX(gb, 22)
+#define gst_showbits23(gb) gst_showbitsX(gb, 23)
+#define gst_showbits24(gb) gst_showbitsX(gb, 24)
+#define gst_showbits32(gb) gst_showbitsX(gb, 32)
+
+#define gst_flushbitsn(gb,n) gst_flushbitsX(gb, n)
+#define gst_flushbits32(gb) gst_flushbitsX(gb, 32)
+
+#define gst_backbitsn(gb,n) gst_backbitsX(gb, n)
+#define gst_backbits24(gb) gst_backbitsX(gb, 24)
+#endif
+
+#endif /* __GST_GETBITS_H__ */
--- /dev/null
+#include "gstgetbits.h"
+
+unsigned long _gst_getbits_int_cb(gst_getbits_t *gb, unsigned long bits);
+unsigned long _gst_get1bit_int(gst_getbits_t *gb, unsigned long bits);
+unsigned long _gst_getbits_int(gst_getbits_t *gb, unsigned long bits);
+unsigned long _gst_getbits_fast_int(gst_getbits_t *gb, unsigned long bits);
+unsigned long _gst_showbits_int(gst_getbits_t *gb, unsigned long bits);
+void _gst_flushbits_int(gst_getbits_t *gb, unsigned long bits);
+void _gst_getbits_back_int(gst_getbits_t *gb, unsigned long bits);
+
+
+unsigned long _gst_getbits_int_cb(gst_getbits_t *gb, unsigned long bits) {
+ int result;
+ int bitsleft;
+
+ //printf("gst_getbits%lu %ld %p %08x\n", bits, gb->bits, gb->ptr, gb->dword);
+
+ if (!bits) return 0;
+
+ gb->bits -= bits;
+ result = gb->dword >> (32-bits);
+
+ if (gb->bits < 0) {
+
+ gb->ptr += 4;
+
+ bitsleft = (gb->endptr - gb->ptr)*8;
+ bits = -gb->bits;
+ gb->bits += (bitsleft>32? 32 : bitsleft);
+
+ if (gb->endptr <= gb->ptr) {
+ (gb->callback)(gb, gb->data);
+ gb->bits -= bits;
+ }
+ gb->dword = swab32(*((unsigned long *)(gb->ptr)));
+
+ result |= (gb->dword >> (32-bits));
+ }
+ gb->dword <<= bits;
+
+ return result;
+}
+
+unsigned long _gst_get1bit_int(gst_getbits_t *gb, unsigned long bits) {
+ unsigned char rval;
+
+ rval = *gb->ptr << gb->bits;
+
+ gb->bits++;
+ gb->ptr += (gb->bits>>3);
+ gb->bits &= 0x7;
+
+ GST_DEBUG (0,"getbits%ld, %08x\n", bits, rval);
+ return rval>>7;
+}
+
+unsigned long _gst_getbits_int(gst_getbits_t *gb, unsigned long bits) {
+ unsigned long rval;
+
+ if (bits == 0) return 0;
+
+ rval = swab32(*((unsigned long *)(gb->ptr)));
+ rval <<= gb->bits;
+
+ gb->bits += bits;
+
+ rval >>= (32-bits);
+ gb->ptr += (gb->bits>>3);
+ gb->bits &= 0x7;
+
+ GST_DEBUG (0,"getbits%ld, %08lx\n", bits, rval);
+ return rval;
+}
+
+unsigned long _gst_getbits_fast_int(gst_getbits_t *gb, unsigned long bits) {
+ unsigned long rval;
+
+ rval = (unsigned char) (gb->ptr[0] << gb->bits);
+ rval |= ((unsigned int) gb->ptr[1] << gb->bits)>>8;
+ rval <<= bits;
+ rval >>= 8;
+
+ gb->bits += bits;
+ gb->ptr += (gb->bits>>3);
+ gb->bits &= 0x7;
+
+ GST_DEBUG (0,"getbits%ld, %08lx\n", bits, rval);
+ return rval;
+}
+
+unsigned long _gst_showbits_int(gst_getbits_t *gb, unsigned long bits) {
+ unsigned long rval;
+
+ if (bits == 0) return 0;
+
+ rval = swab32(*((unsigned long *)(gb->ptr)));
+ rval <<= gb->bits;
+ rval >>= (32-bits);
+
+ GST_DEBUG (0,"showbits%ld, %08lx\n", bits, rval);
+ return rval;
+}
+
+void _gst_flushbits_int(gst_getbits_t *gb, unsigned long bits) {
+ gb->bits += bits;
+ gb->ptr += (gb->bits>>3);
+ gb->bits &= 0x7;
+ GST_DEBUG (0,"flushbits%ld\n", bits);
+}
+
+void _gst_getbits_back_int(gst_getbits_t *gb, unsigned long bits) {
+ gb->bits -= bits;
+ gb->ptr += (gb->bits>>3);
+ gb->bits &= 0x7;
+}
+
--- /dev/null
+ .p2align 4,,7
+.globl _gst_getbits_i386
+ .type _gst_getbits_i386,@function
+_gst_getbits_i386:
+ cmpl $0,8(%esp)
+ jne .L39
+ xorl %eax,%eax
+ ret
+.L39:
+ movl 4(%esp),%edx
+ movl (%edx),%ecx
+ movl (%ecx),%eax
+ bswap %eax
+ movl 16(%edx),%ecx
+ shll %cl, %eax
+ movl 8(%esp),%ecx
+ addl %ecx, 16(%edx)
+ negl %ecx
+ addl $32,%ecx
+ shrl %cl, %eax
+ movl 16(%edx),%ecx
+ sarl $3,%ecx
+ addl %ecx,(%edx)
+ andl $7,16(%edx)
+ ret
+
+ .p2align 4,,7
+.globl _gst_getbits_fast_i386
+ .type _gst_getbits_fast_i386,@function
+_gst_getbits_fast_i386:
+ movl 4(%esp),%edx
+ movl (%edx),%ecx
+ movzbl 1(%ecx),%eax
+ movb (%ecx), %ah
+ movl 16(%edx),%ecx
+ shlw %cl, %ax
+ movl 8(%esp),%ecx
+ addl %ecx, 16(%edx)
+ negl %ecx
+ addl $16,%ecx
+ shrl %cl, %eax
+ movl 16(%edx),%ecx
+ sarl $3,%ecx
+ addl %ecx,(%edx)
+ andl $7,16(%edx)
+ ret
+
+ .p2align 4,,7
+.globl _gst_get1bit_i386
+ .type _gst_get1bit_i386,@function
+_gst_get1bit_i386:
+ movl 4(%esp),%edx
+ movl (%edx),%ecx
+ movzbl (%ecx),%eax
+ movl 16(%edx),%ecx
+ incl %ecx
+ rolb %cl, %al
+ andb $1, %al
+ movl %ecx, 16(%edx)
+ andl $7,16(%edx)
+ sarl $3,%ecx
+ addl %ecx,(%edx)
+ ret
+
+ .p2align 4,,7
+.globl _gst_showbits_i386
+ .type _gst_showbits_i386,@function
+_gst_showbits_i386:
+ cmpl $0,8(%esp)
+ jne .L40
+ xorl %eax,%eax
+ ret
+.L40:
+ movl 4(%esp),%edx
+ movl (%edx),%ecx
+ movl (%ecx), %eax
+ bswap %eax
+ movl 16(%edx),%ecx
+ shll %cl, %eax
+ movl 8(%esp),%ecx
+ negl %ecx
+ addl $32,%ecx
+ shrl %cl, %eax
+ ret
+
+
+ .p2align 4,,7
+.globl _gst_flushbits_i386
+ .type _gst_flushbits_i386,@function
+_gst_flushbits_i386:
+ movl 4(%esp),%ecx
+ movl 16(%ecx),%eax
+ addl 8(%esp),%eax
+ movl %eax, %edx
+ sarl $3,%eax
+ addl %eax,(%ecx)
+ andl $7, %edx
+ movl %edx, 16(%ecx)
+ ret
+
+
+ .p2align 4,,7
+.globl _gst_getbits_back_i386
+ .type _gst_getbits_back_i386,@function
+_gst_getbits_back_i386:
+ movl 4(%esp),%edx
+ movl 16(%edx),%ecx
+ subl 8(%esp),%ecx
+ movl %ecx, %eax
+ sarl $3,%ecx
+ addl %ecx,(%edx)
+ andl $7,%eax
+ movl %eax, 16(%edx)
+ ret
+
--- /dev/null
+/*
+ * Copyright (c) 1995 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose, without fee, and without written agreement is
+ * hereby granted, provided that the above copyright notice and the following
+ * two paragraphs appear in all copies of this software.
+ *
+ * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
+ * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
+ * CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ */
+
+/*
+ * Portions of this software Copyright (c) 1995 Brown University.
+ * All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose, without fee, and without written agreement
+ * is hereby granted, provided that the above copyright notice and the
+ * following two paragraphs appear in all copies of this software.
+ *
+ * IN NO EVENT SHALL BROWN UNIVERSITY BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
+ * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF BROWN
+ * UNIVERSITY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * BROWN UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS"
+ * BASIS, AND BROWN UNIVERSITY HAS NO OBLIGATION TO PROVIDE MAINTENANCE,
+ * SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ */
+
+/*
+ Changes to make the code reentrant:
+ deglobalized: curBits, curVidStream
+ deglobalized: bitOffset, bitLength, bitBuffer in vid_stream, not used
+ here
+ Additional changes:
+ -lsh@cs.brown.edu (Loring Holden)
+ */
+
+#ifndef __GST_GETBITS_INL_H__
+#define __GST_GETBITS_INL_H__
+
+#include <glib.h>
+
+//#define GETBITS_DEBUG_ENABLED
+//#define GETBITS_OVERRUN_ENABLED
+
+#ifdef GETBITS_DEBUG_ENABLED
+#define debug2(format,args...) g_print(format,##args)
+#define debug(format,args...) g_print(format,##args),
+#else
+#define debug(format,args...)
+#define debug2(format,args...)
+#endif
+
+#ifdef GETBITS_OVERRUN_ENABLED
+#define checklength2(src, dst) (((unsigned char*)src)<(dst)?0:printf("overrun !! %p>=%p %ld %s %d\n", (src), (dst), (gb)->bits, __PRETTY_FUNCTION__, __LINE__))
+#define checklength(src, dst) (((unsigned char*)src)<(dst)?0:printf("overrun !! %p>=%p %ld %s %d\n", (src), (dst), (gb)->bits, __PRETTY_FUNCTION__, __LINE__)),
+#else
+#define checklength(src, dst)
+#define checklength2(src, dst)
+#endif
+
+#define swab32(x) GUINT32_FROM_BE(x)
+
+/* External declarations for bitstream i/o operations. */
+extern unsigned long gst_getbits_nBitMask[];
+
+#define gst_getbits_init(gb, callback, data)
+
+#define gst_getbits_newbuf(gb, buffer, len) \
+{ \
+ (gb)->longptr = (unsigned long *)(buffer); \
+ (gb)->endptr = (unsigned char *)buffer+len; \
+ (gb)->length = len; \
+ (gb)->bits = 0; \
+ (gb)->dword = swab32(*(gb)->longptr); \
+}
+
+#define gst_getbits_bitoffset(gb) \
+( \
+ debug("bitoffset: %ld %p\n", (gb)->bits, (gb)->longptr) \
+ (gb)->bits \
+)
+
+#define gst_getbits_bufferpos(gb) ((gb)->longptr)
+
+#define gst_getbits_bytesleft(gb) ((gb)->endptr - (unsigned char*)(gb)->longptr)
+
+#define gst_getbits_bitsleft(gb) (((gb)->endptr - (unsigned char*)(gb)->longptr)*8 - (gb)->bits)
+
+#define gst_getbits1(gb) \
+( \
+ ((gb)->temp = (((gb)->dword & 0x80000000) != 0)), \
+ (gb)->dword <<= 1, \
+ (gb)->bits++, \
+ \
+ ((gb)->bits & 0x20 ? ( \
+ (gb)->bits = 0, \
+ (gb)->longptr++, \
+ checklength((gb)->longptr, (gb)->endptr) \
+ ((gb)->dword = swab32(*(gb)->longptr)) \
+ ) \
+ :0), \
+ debug("getbits1 : %04lx %08lx %p\n", (gb)->temp, (gb)->dword, (gb)->longptr) \
+ (gb)->temp \
+)
+
+#define gst_getbits2(gb) \
+( \
+ (gb)->bits += 2, \
+ \
+ ((gb)->bits & 0x20 ? ( \
+ (gb)->bits -= 32, \
+ (gb)->longptr++, \
+ checklength((gb)->longptr, (gb)->endptr) \
+ ((gb)->bits ? ( \
+ ((gb)->dword |= \
+ (swab32(*(gb)->longptr) >> (2 - (gb)->bits))) \
+ ) \
+ : 0 \
+ ),( \
+ ((gb)->temp = (((gb)->dword & 0xc0000000) >> 30)), \
+ ((gb)->dword = swab32(*(gb)->longptr) << (gb)->bits)) \
+ ) \
+ : ( \
+ ((gb)->temp = (((gb)->dword & 0xc0000000) >> 30)), \
+ ((gb)->dword <<= 2) \
+ ) \
+ ), \
+ debug("getbits2 : %04lx %08lx %p\n", (gb)->temp, (gb)->dword, (gb)->longptr) \
+ (gb)->temp \
+)
+
+#define gst_getbitsX(gb, num, mask, shift) \
+( \
+ (gb)->bits += (num), \
+ \
+ ((gb)->bits & 0x20 ? ( \
+ (gb)->bits -= 32, \
+ (gb)->longptr++, \
+ checklength((gb)->longptr, (gb)->endptr) \
+ ((gb)->bits ? ( \
+ ((gb)->dword |= (swab32(*(gb)->longptr) >> \
+ ((num) - (gb)->bits))) \
+ ) \
+ :0 \
+ ), \
+ ((gb)->temp = (((gb)->dword & (mask)) >> (shift))), \
+ ((gb)->dword = swab32(*(gb)->longptr) << (gb)->bits) \
+ ) \
+ : ( \
+ ((gb)->temp = (((gb)->dword & mask) >> shift)), \
+ ((gb)->dword <<= (num)) \
+ ) \
+ ), \
+ debug("getbits%-2d: %04lx %08lx %lu %p\n", num, (gb)->temp, (gb)->dword, mask, (gb)->longptr) \
+ (gb)->temp \
+)
+
+#define gst_getbits3(gb) gst_getbitsX(gb, 3, 0xe0000000UL, 29)
+#define gst_getbits4(gb) gst_getbitsX(gb, 4, 0xf0000000UL, 28)
+#define gst_getbits5(gb) gst_getbitsX(gb, 5, 0xf8000000UL, 27)
+#define gst_getbits6(gb) gst_getbitsX(gb, 6, 0xfc000000UL, 26)
+#define gst_getbits7(gb) gst_getbitsX(gb, 7, 0xfe000000UL, 25)
+#define gst_getbits8(gb) gst_getbitsX(gb, 8, 0xff000000UL, 24)
+#define gst_getbits9(gb) gst_getbitsX(gb, 9, 0xff800000UL, 23)
+#define gst_getbits10(gb) gst_getbitsX(gb, 10, 0xffc00000UL, 22)
+#define gst_getbits11(gb) gst_getbitsX(gb, 11, 0xffe00000UL, 21)
+#define gst_getbits12(gb) gst_getbitsX(gb, 12, 0xfff00000UL, 20)
+#define gst_getbits13(gb) gst_getbitsX(gb, 13, 0xfff80000UL, 19)
+#define gst_getbits14(gb) gst_getbitsX(gb, 14, 0xfffc0000UL, 18)
+#define gst_getbits15(gb) gst_getbitsX(gb, 15, 0xfffe0000UL, 17)
+#define gst_getbits16(gb) gst_getbitsX(gb, 16, 0xffff0000UL, 16)
+#define gst_getbits17(gb) gst_getbitsX(gb, 17, 0xffff8000UL, 15)
+#define gst_getbits18(gb) gst_getbitsX(gb, 18, 0xffffc000UL, 14)
+#define gst_getbits19(gb) gst_getbitsX(gb, 19, 0xffffe000UL, 13)
+#define gst_getbits20(gb) gst_getbitsX(gb, 20, 0xfffff000UL, 12)
+#define gst_getbits21(gb) gst_getbitsX(gb, 21, 0xfffff800UL, 11)
+#define gst_getbits22(gb) gst_getbitsX(gb, 22, 0xfffffc00UL, 10)
+#define gst_getbits32(gb) gst_getbitsX(gb, 32, 0xffffffffUL, 0)
+
+#define gst_getbitsn(gb,num) gst_getbitsX(gb, (num), ((num) ? ((0xffffffffUL) << (32-(num))):0), (32-(num)))
+
+#define gst_showbits32(gb) \
+( \
+ ((gb)->bits ? ( \
+ (gb)->dword | (swab32(*((gb)->longptr+1)) >> \
+ (32 - (gb)->bits)) \
+ ) \
+ : ( \
+ (gb)->dword \
+ ) \
+ ) \
+)
+
+#define gst_showbitsX(gb, num, mask, shift) \
+( \
+ ((gb)->temp = (gb)->bits + num), \
+ ((gb)->temp > 32 ? ( \
+ (gb)->temp -= 32, \
+ (((gb)->dword & mask) >> shift) | \
+ (swab32(*((gb)->longptr+1)) >> (shift + (num - (gb)->temp))) \
+ ) \
+ : ( \
+ (((gb)->dword & mask) >> shift) \
+ ) \
+ ) \
+)
+
+#define gst_showbits1(gb) gst_showbitsX(gb, 1, 0x80000000, 31)
+#define gst_showbits2(gb) gst_showbitsX(gb, 2, 0xc0000000, 30)
+#define gst_showbits3(gb) gst_showbitsX(gb, 3, 0xe0000000, 29)
+#define gst_showbits4(gb) gst_showbitsX(gb, 4, 0xf0000000, 28)
+#define gst_showbits5(gb) gst_showbitsX(gb, 5, 0xf8000000, 27)
+#define gst_showbits6(gb) gst_showbitsX(gb, 6, 0xfc000000, 26)
+#define gst_showbits7(gb) gst_showbitsX(gb, 7, 0xfe000000, 25)
+#define gst_showbits8(gb) gst_showbitsX(gb, 8, 0xff000000, 24)
+#define gst_showbits9(gb) gst_showbitsX(gb, 9, 0xff800000, 23)
+#define gst_showbits10(gb) gst_showbitsX(gb, 10, 0xffc00000, 22)
+#define gst_showbits11(gb) gst_showbitsX(gb, 11, 0xffe00000, 21)
+#define gst_showbits12(gb) gst_showbitsX(gb, 12, 0xfff00000, 20)
+#define gst_showbits13(gb) gst_showbitsX(gb, 13, 0xfff80000, 19)
+#define gst_showbits14(gb) gst_showbitsX(gb, 14, 0xfffc0000, 18)
+#define gst_showbits15(gb) gst_showbitsX(gb, 15, 0xfffe0000, 17)
+#define gst_showbits16(gb) gst_showbitsX(gb, 16, 0xffff0000, 16)
+#define gst_showbits17(gb) gst_showbitsX(gb, 17, 0xffff8000, 15)
+#define gst_showbits18(gb) gst_showbitsX(gb, 18, 0xffffc000, 14)
+#define gst_showbits19(gb) gst_showbitsX(gb, 19, 0xffffe000, 13)
+#define gst_showbits20(gb) gst_showbitsX(gb, 20, 0xfffff000, 12)
+#define gst_showbits21(gb) gst_showbitsX(gb, 21, 0xfffff800, 11)
+#define gst_showbits22(gb) gst_showbitsX(gb, 22, 0xfffffc00, 10)
+#define gst_showbits23(gb) gst_showbitsX(gb, 23, 0xfffffe00, 9)
+#define gst_showbits24(gb) gst_showbitsX(gb, 24, 0xffffff00, 8)
+#define gst_showbits25(gb) gst_showbitsX(gb, 25, 0xffffff80, 7)
+#define gst_showbits26(gb) gst_showbitsX(gb, 26, 0xffffffc0, 6)
+#define gst_showbits27(gb) gst_showbitsX(gb, 27, 0xffffffe0, 5)
+#define gst_showbits28(gb) gst_showbitsX(gb, 28, 0xfffffff0, 4)
+#define gst_showbits29(gb) gst_showbitsX(gb, 29, 0xfffffff8, 3)
+#define gst_showbits30(gb) gst_showbitsX(gb, 30, 0xfffffffc, 2)
+#define gst_showbits31(gb) gst_showbitsX(gb, 31, 0xfffffffe, 1)
+
+#define gst_showbitsn(gb,num) gst_showbitsX(gb, (num), ((0xffffffff) << (32-num)), (32-(num)))
+
+#define gst_flushbits32(gb) \
+{ \
+ (gb)->longptr++; \
+ checklength2((gb)->longptr, (gb)->endptr); \
+ (gb)->dword = swab32(*(gb)->longptr) << (gb)->bits; \
+}
+
+
+#define gst_flushbitsn(gb, num) \
+{ \
+ (gb)->bits += num; \
+ \
+ if ((gb)->bits & 0x20) { \
+ (gb)->bits -= 32; \
+ (gb)->longptr++; \
+ checklength2((gb)->longptr, (gb)->endptr); \
+ (gb)->dword = swab32(*(gb)->longptr) << (gb)->bits; \
+ } \
+ else { \
+ (gb)->dword <<= num; \
+ } \
+ debug2("flushbits%-2d: %08lx %p\n", num, (gb)->dword, (gb)->longptr); \
+}
+
+#define gst_backbits24(gb) \
+{ \
+ (gb)->bits -= 24; \
+ if ((gb)->bits < 0) { \
+ (gb)->bits += 32; \
+ (gb)->longptr--; \
+ } \
+ (gb)->dword = swab32(*(gb)->longptr) << (gb)->bits; \
+}
+
+#define gst_backbitsn(gb, num) \
+{ \
+ (gb)->bits -= num; \
+ while ((gb)->bits < 0) { \
+ (gb)->bits += 32; \
+ (gb)->longptr--; \
+ } \
+ (gb)->dword = swab32(*(gb)->longptr) << (gb)->bits; \
+ debug2("backbits%-2d: %08lx %p\n", num, (gb)->dword, (gb)->longptr); \
+}
+
+#endif /* __GST_GETBITS_INL_H__ */
--- /dev/null
+librarydir = $(libdir)/gst
+
+library_LTLIBRARIES = libgstputbits.la
+
+libgstputbits_la_SOURCES = putbits.c
+
+libgstputbitsincludedir = $(includedir)/gst/putbits
+libgstputbitsinclude_HEADERS = putbits.h
+
+noinst_HEADERS = putbits.h
+
+libgstputbits_la_LIBADD = $(GST_LIBS)
+libgstputbits_la_CFLAGS = $(GST_CFLAGS) -funroll-all-loops -finline-functions -ffast-math
--- /dev/null
+/* putbits.c, bit-level output */
+
+/* Copyright (C) 1996, MPEG Software Simulation Group. All Rights Reserved. */
+
+/*
+ * Disclaimer of Warranty
+ *
+ * These software programs are available to the user without any license fee or
+ * royalty on an "as is" basis. The MPEG Software Simulation Group disclaims
+ * any and all warranties, whether express, implied, or statuary, including any
+ * implied warranties or merchantability or of fitness for a particular
+ * purpose. In no event shall the copyright-holder be liable for any
+ * incidental, punitive, or consequential damages of any kind whatsoever
+ * arising from the use of these programs.
+ *
+ * This disclaimer of warranty extends to the user of these programs and user's
+ * customers, employees, agents, transferees, successors, and assigns.
+ *
+ * The MPEG Software Simulation Group does not represent or warrant that the
+ * programs furnished hereunder are free of infringement of any third-party
+ * patents.
+ *
+ * Commercial implementations of MPEG-1 and MPEG-2 video, including shareware,
+ * are subject to royalty fees to patent holders. Many of these patents are
+ * general enough such that they are unavoidable regardless of implementation
+ * design.
+ *
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include "gstputbits.h"
+
+/* initialize buffer, call once before first putbits or alignbits */
+void gst_putbits_init(gst_putbits_t *pb)
+{
+ pb->outcnt = 8;
+ pb->bytecnt = 0;
+ pb->outbase = 0;
+}
+
+void gst_putbits_new_empty_buffer(gst_putbits_t *pb, int len)
+{
+ pb->outbfr = pb->outbase = malloc(len);
+ pb->temp = 0;
+ pb->len = len;
+ pb->newlen = 0;
+ pb->outcnt = 8;
+}
+
+void gst_putbits_new_buffer(gst_putbits_t *pb, unsigned char *buffer, int len)
+{
+ pb->outbfr = buffer;
+ pb->temp = 0;
+ pb->outcnt = 8;
+ pb->bytecnt = 0;
+ pb->len = len;
+}
+
+/* write rightmost n (0<=n<=32) bits of val to outfile */
+void gst_putbits(gst_putbits_t *pb, int val, int n)
+{
+ int i;
+ unsigned int mask;
+
+ //printf("putbits: %p %08x %d %d %d\n", pb, val, n, pb->outcnt, pb->newlen);
+ mask = 1 << (n-1); /* selects first (leftmost) bit */
+
+ for (i=0; i<n; i++)
+ {
+ pb->temp <<= 1;
+
+ if (val & mask)
+ pb->temp|= 1;
+
+ mask >>= 1; /* select next bit */
+ pb->outcnt--;
+
+ if (pb->outcnt==0) /* 8 bit buffer full */
+ {
+ pb->len--;
+ pb->newlen++;
+ *(pb->outbfr++) = pb->temp;
+ pb->outcnt = 8;
+ pb->bytecnt++;
+ }
+ }
+}
+
+/* zero bit stuffing to next byte boundary (5.2.3, 6.2.1) */
+void gst_putbits_align(gst_putbits_t *pb)
+{
+ if (pb->outcnt!=8)
+ gst_putbits(pb, 0, pb->outcnt);
+}
+
+/* return total number of generated bits */
+int gst_putbits_bitcount(gst_putbits_t *pb)
+{
+ return 8*pb->bytecnt + (8-pb->outcnt);
+}
--- /dev/null
+/* putbits.h, bit-level output */
+
+/* Copyright (C) 1996, MPEG Software Simulation Group. All Rights Reserved. */
+
+/*
+ * Disclaimer of Warranty
+ *
+ * These software programs are available to the user without any license fee or
+ * royalty on an "as is" basis. The MPEG Software Simulation Group disclaims
+ * any and all warranties, whether express, implied, or statuary, including any
+ * implied warranties or merchantability or of fitness for a particular
+ * purpose. In no event shall the copyright-holder be liable for any
+ * incidental, punitive, or consequential damages of any kind whatsoever
+ * arising from the use of these programs.
+ *
+ * This disclaimer of warranty extends to the user of these programs and user's
+ * customers, employees, agents, transferees, successors, and assigns.
+ *
+ * The MPEG Software Simulation Group does not represent or warrant that the
+ * programs furnished hereunder are free of infringement of any third-party
+ * patents.
+ *
+ * Commercial implementations of MPEG-1 and MPEG-2 video, including shareware,
+ * are subject to royalty fees to patent holders. Many of these patents are
+ * general enough such that they are unavoidable regardless of implementation
+ * design.
+ *
+ */
+
+#ifndef __GST_PUTBITS_H__
+#define __GST_PUTBITS_H__
+
+typedef struct _gst_putbits_t gst_putbits_t;
+
+struct _gst_putbits_t {
+ unsigned char *outbfr;
+ unsigned char *outbase;
+ unsigned char temp;
+ int outcnt;
+ int bytecnt;
+ int len;
+ int newlen;
+};
+
+void gst_putbits_init(gst_putbits_t *pb);
+void gst_putbits_new_empty_buffer(gst_putbits_t *pb, int len);
+void gst_putbits_new_buffer(gst_putbits_t *pb, unsigned char *buffer, int len);
+void gst_putbits(gst_putbits_t *pb, int val, int n);
+void gst_putbits_align(gst_putbits_t *pb);
+int gst_putbits_bitcount(gst_putbits_t *pb);
+
+#define gst_putbits1(gb, val) gst_putbits(gb, val, 1)
+#define gst_putbits2(gb, val) gst_putbits(gb, val, 2)
+#define gst_putbits3(gb, val) gst_putbits(gb, val, 3)
+#define gst_putbits4(gb, val) gst_putbits(gb, val, 4)
+#define gst_putbits5(gb, val) gst_putbits(gb, val, 5)
+#define gst_putbits6(gb, val) gst_putbits(gb, val, 6)
+#define gst_putbits7(gb, val) gst_putbits(gb, val, 7)
+#define gst_putbits8(gb, val) gst_putbits(gb, val, 8)
+#define gst_putbits9(gb, val) gst_putbits(gb, val, 9)
+#define gst_putbits10(gb, val) gst_putbits(gb, val, 10)
+#define gst_putbits11(gb, val) gst_putbits(gb, val, 11)
+#define gst_putbits12(gb, val) gst_putbits(gb, val, 12)
+#define gst_putbits13(gb, val) gst_putbits(gb, val, 13)
+#define gst_putbits14(gb, val) gst_putbits(gb, val, 14)
+#define gst_putbits15(gb, val) gst_putbits(gb, val, 15)
+#define gst_putbits16(gb, val) gst_putbits(gb, val, 16)
+#define gst_putbits17(gb, val) gst_putbits(gb, val, 17)
+#define gst_putbits18(gb, val) gst_putbits(gb, val, 18)
+#define gst_putbits19(gb, val) gst_putbits(gb, val, 19)
+#define gst_putbits20(gb, val) gst_putbits(gb, val, 20)
+#define gst_putbits21(gb, val) gst_putbits(gb, val, 21)
+#define gst_putbits22(gb, val) gst_putbits(gb, val, 22)
+#define gst_putbits32(gb, val) gst_putbits(gb, val, 32)
+
+#define gst_putbitsn(gb, val, n) gst_putbits(gb, val, n)
+
+#endif /* __GST_PUTBITS_H__ */
projects / platform / upstream / gstreamer.git / commitdiff