reconstruct.c
资源名称:NETVIDEO.rar [点击查看]
上传用户:sun1608
上传日期:2007-02-02
资源大小:6116k
文件大小:39k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- #include "mpeg3video.h"
- #include <stdio.h>
- #ifdef HAVE_MMX
- #ifdef HAVE_3Dnow
- static inline void recva_mmx(unsigned char *s, unsigned char *d, int lx, int lx2, int h)
- {
- __asm__(
- ".align 8n"
- "1:"
- "movq (%1), %%mm0n" /* 8 s */
- "movq 8(%1), %%mm1n" /* 8 s */
- "movq (%4), %%mm2n" /* 8 s +lx */
- "movq 8(%4), %%mm3n" /* 8 s +lx **/
- "pavgusb %%mm2, %%mm0n"
- "addl %3, %1n"
- "pavgusb %%mm3, %%mm1n"
- "movq (%2), %%mm2n" /* 8 d */
- "movq 8(%2), %%mm3n" /* 8 d */
- "pavgusb %%mm2, %%mm0n"
- "addl %3, %4n"
- "pavgusb %%mm3, %%mm1n"
- "movq %%mm0, (%2)n"
- "movq %%mm1, 8(%2)n"
- "addl %3, %2n"
- "loop 1bn"
- :
- : "c" (h), "r" (s), "r" (d), "r" (lx2), "r" (s +lx)
- );
- }
- static inline void recvac_mmx(unsigned char *s, unsigned char *d, int lx,int lx2, int h)
- {
- __asm__(
- ".align 8n"
- "1:"
- "movq (%1), %%mm0n" /* 8 s */
- "movq (%4), %%mm2n" /* 8 s +lx */
- "addl %3, %1n"
- "pavgusb %%mm2, %%mm0n"
- "movq (%2), %%mm3n" /* 8 d */
- "addl %3, %4n"
- "pavgusb %%mm3, %%mm0n"
- "movq %%mm0, (%2)n"
- "addl %3, %2n"
- "loop 1bn"
- :
- : "c" (h), "r" (s), "r" (d), "r" (lx2), "r" (s +lx)
- );
- }
- static inline void rech_mmx(unsigned char *s, unsigned char *d, int lx2, int h)
- {
- __asm__ (
- ".align 8n"
- "1:"
- "movq (%1), %%mm0n" /* 8 s */
- "movq 8(%1), %%mm1n" /* 8 s */
- "movq 1(%1), %%mm2n" /* 8 s */
- "movq 9(%1), %%mm3n" /* 8 s */
- "pavgusb %%mm2, %%mm0n"
- "addl %3, %1n"
- "pavgusb %%mm3, %%mm1n"
- "movq %%mm0, (%2)n"
- "movq %%mm1, 8(%2)n"
- "addl %3, %2n"
- "loop 1bn"
- :
- : "c" (h), "r" (s), "r" (d), "r" (lx2)
- );
- }
- static inline void rechc_mmx(unsigned char *s, unsigned char *d, int lx2, int h)
- {
- __asm__ (
- ".align 8n"
- "1:"
- "movq (%1), %%mm0n" /* 8 s */
- "movq 1(%1), %%mm2n" /* 8 s +1 */
- "addl %3, %1n"
- "pavgusb %%mm2, %%mm0n"
- "movq %%mm0, (%2)n"
- "addl %3, %2n"
- "loop 1bn"
- :
- : "c" (h), "r" (s), "r" (d), "r" (lx2)
- );
- }
- static inline void recha_mmx(unsigned char *s, unsigned char *d,int lx2, int h)
- {
- __asm__ (
- ".align 8n"
- "1:"
- "movq (%1), %%mm0n" /* 8 s */
- "movq 8(%1), %%mm1n" /* 8 s */
- "movq 1(%1), %%mm2n" /* 8 s */
- "movq 9(%1), %%mm3n" /* 8 s */
- "pavgusb %%mm2, %%mm0n"
- "addl %3, %1n"
- "pavgusb %%mm3, %%mm1n"
- "movq (%2), %%mm2n" /* 8 d */
- "movq 8(%2), %%mm3n" /* 8 d */
- "pavgusb %%mm2, %%mm0n"
- "pavgusb %%mm3, %%mm1n"
- "movq %%mm0, (%2)n"
- "movq %%mm1, 8(%2)n"
- "addl %3, %2n"
- "loop 1bn"
- :
- : "c" (h), "r" (s), "r" (d), "r" (lx2)
- );
- }
- static inline void rechac_mmx(unsigned char *s,unsigned char *d, int lx2, int h)
- {
- __asm__ (
- ".align 8n"
- "1:"
- "movq (%1), %%mm0n" /* 8 s */
- "movq 1(%1), %%mm2n" /* 8 s */
- "addl %3, %1n"
- "pavgusb %%mm2, %%mm0n"
- "movq (%2), %%mm1n" /* 8 d */
- "pavgusb %%mm1, %%mm0n"
- "movq %%mm0, (%2)n"
- "addl %3, %2n"
- "loop 1bn"
- :
- : "c" (h), "r" (s), "r" (d), "r" (lx2)
- );
- }
- static inline void rec4_mmx(unsigned char *s, unsigned char *d, int lx, int lx2, int h)
- {
- __asm__ __volatile__(
- "movq (%1), %%mm0n" /* 8 s */
- "movq 8(%1), %%mm1n" /* 8 s */
- "movq 1(%1), %%mm2n" /* 8 s +1*/
- "movq 9(%1), %%mm3n" /* 8 s +1*/
- ".align 8n"
- "1:"
- "movq (%4), %%mm4n" /* 8 s+lx */
- "pavgusb %%mm2, %%mm0n"
- "movq 8(%4), %%mm5n" /* 8 s+lx */
- "pavgusb %%mm3, %%mm1n"
- "movq 1(%4), %%mm6n" /* 8 s+lx +1*/
- "pavgusb %%mm4, %%mm0n"
- "movq 9(%4), %%mm7n" /* 8 s+lx +1*/
- "pavgusb %%mm5, %%mm1n"
- "pavgusb %%mm6, %%mm0n"
- "addl %3, %4n"
- "pavgusb %%mm7, %%mm1n"
- "movq %%mm0, (%2)n"
- "movq %%mm6, %%mm2n"
- "movq %%mm7, %%mm3n"
- "movq %%mm1, 8(%2)n"
- "movq %%mm4, %%mm0n"
- "movq %%mm5, %%mm1n"
- "addl %3, %2n"
- "loop 1bn"
- :
- : "c" (h), "r" (s), "r" (d), "r" (lx2), "r" (s +lx)
- );
- }
- static inline void rec4c_mmx(unsigned char *s, unsigned char *d, int lx, int lx2, int h)
- {
- __asm__ __volatile__(
- "movq (%1), %%mm0n" /* 8 s */
- "movq 1(%1), %%mm2n" /* 8 s +1*/
- ".align 8n"
- "1:"
- "movq (%4), %%mm4n" /* 8 s+lx */
- "pavgusb %%mm2, %%mm0n"
- "movq 1(%4), %%mm6n" /* 8 s+lx +1*/
- "pavgusb %%mm4, %%mm0n"
- "addl %3, %4n"
- "pavgusb %%mm6, %%mm0n"
- "movq %%mm0, (%2)n"
- "movq %%mm6, %%mm2n"
- "movq %%mm4, %%mm0n"
- "addl %3, %2n"
- "loop 1bn"
- :
- : "c" (h), "r" (s), "r" (d), "r" (lx2), "r" (s +lx)
- );
- }
- static inline void rec4a_mmx(unsigned char *s, unsigned char *d, int lx, int lx2, int h)
- {
- __asm__ __volatile__(
- "movq (%1), %%mm0n" /* 8 s */
- "movq 8(%1), %%mm1n" /* 8 s */
- "movq 1(%1), %%mm2n" /* 8 s +1*/
- "movq 9(%1), %%mm3n" /* 8 s +1*/
- ".align 8n"
- "1:"
- "movq (%4), %%mm4n" /* 8 s+lx */
- "pavgusb %%mm2, %%mm0n"
- "movq 8(%4), %%mm5n" /* 8 s+lx */
- "pavgusb %%mm3, %%mm1n"
- "movq 1(%4), %%mm6n" /* 8 s+lx +1*/
- "pavgusb %%mm4, %%mm0n"
- "movq 9(%4), %%mm7n" /* 8 s+lx +1*/
- "pavgusb %%mm5, %%mm1n"
- "movq (%2), %%mm2n"
- "pavgusb %%mm6, %%mm0n"
- "movq 8(%2), %%mm3n"
- "pavgusb %%mm2, %%mm0n"
- "addl %3, %4n"
- "pavgusb %%mm3, %%mm1n"
- "movq %%mm0, (%2)n"
- "pavgusb %%mm7, %%mm1n"
- "movq %%mm6, %%mm2n"
- "movq %%mm7, %%mm3n"
- "movq %%mm1, 8(%2)n"
- "movq %%mm4, %%mm0n"
- "movq %%mm5, %%mm1n"
- "addl %3, %2n"
- "loop 1bn"
- :
- : "c" (h), "r" (s), "r" (d), "r" (lx2), "r" (s +lx)
- );
- }
- static inline void rec4ac_mmx(unsigned char *s, unsigned char *d, int lx, int lx2, int h)
- {
- __asm__ __volatile__(
- "movq (%1), %%mm0n" /* 8 s */
- "movq 1(%1), %%mm2n" /* 8 s +1*/
- ".align 8n"
- "1:"
- "movq (%4), %%mm4n" /* 8 s+lx */
- "pavgusb %%mm2, %%mm0n"
- "movq 1(%4), %%mm6n" /* 8 s+lx +1*/
- "pavgusb %%mm4, %%mm0n"
- "movq (%2), %%mm1n" /* 8 d */
- "pavgusb %%mm6, %%mm0n"
- "addl %3, %4n"
- "pavgusb %%mm1, %%mm0n"
- "movq %%mm6, %%mm2n"
- "movq %%mm0, (%2)n"
- "movq %%mm4, %%mm0n"
- "addl %3, %2n"
- "loop 1bn"
- :
- : "c" (h), "r" (s), "r" (d), "r" (lx2), "r" (s +lx)
- );
- }
- #else // HAVE_3DNOW
- static long long ADD_1 = 0x0101010101010101LL;
- static long long MASK_AND = 0x7f7f7f7f7f7f7f7fLL;
- #endif
- static inline void rec_mmx(unsigned char *s, unsigned char *d, int lx2, int h)
- {
- __asm__ __volatile__(
- ".align 8n"
- "1:t"
- "movq ( %1 ), %%mm0n" /* 8 s */
- "movq 8( %1 ), %%mm2n" /* 16 s */
- "movq %%mm0, ( %2 )n"
- "addl %3, %1n"
- "movq %%mm2, 8( %2 )n"
- "decl %0n"
- "leal (%2, %3), %2n"
- "jnz 1b"
- :
- : "c" (h), "r" (s), "r" (d), "r" (lx2)
- );
- }
- static inline void recc_mmx(unsigned char *s, unsigned char *d, int lx2, int h)
- {
- __asm__ __volatile__(
- ".align 8n"
- "1:t"
- "movq ( %1 ), %%mm0n"
- "addl %3, %1n"
- "movq %%mm0, ( %2 )n"
- "decl %0n"
- "leal (%2, %3), %2n"
- "jnz 1b"
- :
- : "c" (h), "r" (s), "r" (d), "r" (lx2)
- );
- }
- static inline void reca_mmx(unsigned char *s, unsigned char *d, int lx2, int h)
- {
- #ifdef HAVE_3Dnow
- __asm__ (
- ".align 8n"
- "1:"
- "movq (%1), %%mm0n" /* 8 s */
- "movq (%2), %%mm2n" /* 8 d */
- "movq 8(%1), %%mm1n" /* 8 s */
- "movq 8(%2), %%mm3n" /* 8 d */
- "pavgusb %%mm2, %%mm0n"
- "addl %3, %1n"
- "pavgusb %%mm3, %%mm1n"
- "movq %%mm0, (%2)n"
- "movq %%mm1, 8(%2)n"
- "addl %3, %2n"
- "loop 1bn"
- :
- : "c" (h), "r" (s), "r" (d), "r" (lx2)
- );
- #else /* No 3dnow */
- __asm__ (
- "movq MASK_AND, %%mm5n"
- "movq ADD_1, %%mm6n"
- "1:t"
- "movq (%1),%%mm0n" /* Load 16 pixels from each row */
- "movq (%2),%%mm1n"
- "movq 8(%1),%%mm2n"
- "movq 8(%2),%%mm3n"
- "psrlw $1,%%mm0n" /* Shift pixels down */
- "psrlw $1,%%mm1n"
- "pand %%mm5,%%mm0n" /* Zero out significant bit */
- "psrlw $1,%%mm2n"
- "pand %%mm5,%%mm1n"
- "psrlw $1,%%mm3n"
- "pand %%mm5,%%mm2n"
- "paddusb %%mm1,%%mm0n" /* Add pixels */
- "pand %%mm5,%%mm3n"
- "paddusb %%mm3,%%mm2n"
- "paddusb %%mm6,%%mm0n" /* Add 1 to results */
- "paddusb %%mm6,%%mm2n"
- "movq %%mm0,(%2)n"
- "addl %3,%1n"
- "movq %%mm2, 8(%2)n"
- "decl %0n"
- "leal (%2, %3), %2n"
- "jnz 1bn"
- :
- : "c" (h), "r" (s), "r" (d), "r" (lx2)
- );
- #endif
- }
- static inline void recac_mmx(unsigned char *s, unsigned char *d, int lx2, int h)
- {
- #ifdef HAVE_3Dnow
- __asm__ (
- ".align 8n"
- "1:"
- "movq (%1), %%mm0n" /* 8 s */
- "movq (%2), %%mm2n" /* 8 d */
- "pavgusb %%mm2, %%mm0n"
- "addl %3, %1n"
- "movq %%mm0, (%2)n"
- "addl %3, %2n"
- "loop 1bn"
- :
- : "c" (h), "r" (s), "r" (d), "r" (lx2)
- );
- #else /* No 3dnow */
- __asm__ (
- "movq MASK_AND, %%mm5n"
- "movq ADD_1, %%mm6n"
- "1:t"
- "movq (%1),%%mm0n"
- "movq (%2),%%mm1n"
- "psrlw $1,%%mm0n"
- "psrlw $1,%%mm1n"
- "pand %%mm5,%%mm0n"
- "pand %%mm5,%%mm1n"
- "paddusb %%mm1,%%mm0n"
- "paddusb %%mm6,%%mm0n"
- "addl %3,%1n"
- "movq %%mm0,(%2)n"
- "decl %0n"
- "leal (%2, %3), %2n"
- "jnz 1bn"
- :
- : "c" (h), "r" (s), "r" (d), "r" (lx2)
- );
- #endif
- }
- static inline void recv_mmx(unsigned char *s, unsigned char *d, int lx, int lx2, int h)
- {
- #ifdef HAVE_3Dnow
- __asm__(
- ".align 8n"
- "1:"
- "movq (%1), %%mm0n" /* 8 s */
- "movq (%4), %%mm2n" /* 8 s +lx */
- "movq 8(%1), %%mm1n" /* 8 s */
- "movq 8(%4), %%mm3n" /* 8 s +lx **/
- "pavgusb %%mm2, %%mm0n"
- "addl %3, %1n"
- "pavgusb %%mm3, %%mm1n"
- "movq %%mm0, (%2)n"
- "addl %3, %4n"
- "movq %%mm1, 8(%2)n"
- "addl %3, %2n"
- "loop 1bn"
- :
- : "c" (h), "r" (s), "r" (d), "r" (lx2), "r" (s +lx)
- );
- #else
- __asm__ (
- "movq MASK_AND, %%mm5n"
- "movq ADD_1, %%mm6n"
- "1:t"
- "movq (%1), %%mm0n" /* 8 s */
- "movq (%4), %%mm1n" /* 8 s +lx */
- "movq 8(%1), %%mm2n" /* 8 s */
- "movq 8(%4), %%mm3n" /* 8 s +lx **/
- "psrlw $1,%%mm0n"
- "psrlw $1,%%mm1n"
- "pand %%mm5,%%mm0n"
- "psrlw $1,%%mm2n"
- "pand %%mm5,%%mm1n"
- "psrlw $1,%%mm3n"
- "pand %%mm5,%%mm2n"
- "paddusb %%mm1,%%mm0n"
- "pand %%mm5,%%mm3n"
- "paddusb %%mm3,%%mm2n"
- "paddusb %%mm6,%%mm0n"
- "paddusb %%mm6,%%mm2n"
- "movq %%mm0,(%2)n"
- "addl %3,%1n"
- "movq %%mm2, 8(%2)n"
- "addl %3,%4n"
- "decl %0n"
- "leal (%2, %3), %2n"
- "jnz 1bn"
- :
- : "c" (h), "r" (s), "r" (d), "r" (lx2), "r" (s +lx)
- );
- #endif
- }
- static inline void recvc_mmx(unsigned char *s, unsigned char *d, int lx, int lx2, int h)
- {
- #ifdef HAVE_3Dnow
- __asm__(
- ".align 8n"
- "1:"
- "movq (%1), %%mm0n" /* 8 s */
- "movq (%4), %%mm2n" /* 8 s +lx */
- "addl %3, %1n"
- "pavgusb %%mm2, %%mm0n"
- "addl %3, %4n"
- "movq %%mm0, (%2)n"
- "addl %3, %2n"
- "loop 1bn"
- :
- : "c" (h), "r" (s), "r" (d), "r" (lx2), "r" (s +lx)
- );
- #else
- __asm__ (
- "movq MASK_AND, %%mm5n"
- "movq ADD_1, %%mm6n"
- "1:t"
- "movq (%1), %%mm0n" /* 8 s */
- "movq (%4), %%mm1n" /* 8 s +lx */
- "psrlw $1,%%mm0n"
- "psrlw $1,%%mm1n"
- "pand %%mm5,%%mm0n"
- "pand %%mm5,%%mm1n"
- "paddusb %%mm1,%%mm0n"
- "addl %3,%1n"
- "paddusb %%mm6,%%mm0n"
- "addl %3,%4n"
- "movq %%mm0,(%2)n"
- "decl %0n"
- "leal (%2, %3), %2n"
- "jnz 1bn"
- :
- : "c" (h), "r" (s), "r" (d), "r" (lx2), "r" (s +lx)
- );
- #endif
- }
- #endif // HAVE_MMX
- static __inline void rec(unsigned char *s, unsigned char *d, int lx2, int h)
- {
- int j;
- for(j = 0; j < h; j++, s += lx2, d += lx2)
- {
- d[0] = s[0]; d[1] = s[1]; d[2] = s[2]; d[3] = s[3];
- d[4] = s[4]; d[5] = s[5]; d[6] = s[6]; d[7] = s[7];
- d[8] = s[8]; d[9] = s[9]; d[10] = s[10]; d[11] = s[11];
- d[12] = s[12]; d[13] = s[13]; d[14] = s[14]; d[15] = s[15];
- }
- }
- static __inline void recc(unsigned char *s, unsigned char *d, int lx2, int h)
- {
- int j;
- for(j = 0; j < h; j++, s += lx2, d += lx2)
- {
- d[0] = s[0]; d[1] = s[1]; d[2] = s[2]; d[3] = s[3];
- d[4] = s[4]; d[5] = s[5]; d[6] = s[6]; d[7] = s[7];
- }
- }
- static __inline void reca(unsigned char *s, unsigned char *d, int lx2, int h)
- {
- int j;
- for(j = 0; j < h; j++, s +=lx2, d +=lx2)
- {
- d[0] = (unsigned int)(d[0] + s[0] + 1) >> 1;
- d[1] = (unsigned int)(d[1] + s[1] + 1) >> 1;
- d[2] = (unsigned int)(d[2] + s[2] + 1) >> 1;
- d[3] = (unsigned int)(d[3] + s[3] + 1) >> 1;
- d[4] = (unsigned int)(d[4] + s[4] + 1) >> 1;
- d[5] = (unsigned int)(d[5] + s[5] + 1) >> 1;
- d[6] = (unsigned int)(d[6] + s[6] + 1) >> 1;
- d[7] = (unsigned int)(d[7] + s[7] + 1) >> 1;
- d[8] = (unsigned int)(d[8] + s[8] + 1) >> 1;
- d[9] = (unsigned int)(d[9] + s[9] + 1) >> 1;
- d[10] = (unsigned int)(d[10] + s[10] + 1) >> 1;
- d[11] = (unsigned int)(d[11] + s[11] + 1) >> 1;
- d[12] = (unsigned int)(d[12] + s[12] + 1) >> 1;
- d[13] = (unsigned int)(d[13] + s[13] + 1) >> 1;
- d[14] = (unsigned int)(d[14] + s[14] + 1) >> 1;
- d[15] = (unsigned int)(d[15] + s[15] + 1) >> 1;
- }
- }
- static __inline void recac(unsigned char *s, unsigned char *d, int lx2, int h)
- {
- int j;
- for(j = 0; j < h; j++, s += lx2, d += lx2)
- {
- d[0] = (unsigned int)(d[0] + s[0] + 1)>>1;
- d[1] = (unsigned int)(d[1] + s[1] + 1)>>1;
- d[2] = (unsigned int)(d[2] + s[2] + 1)>>1;
- d[3] = (unsigned int)(d[3] + s[3] + 1)>>1;
- d[4] = (unsigned int)(d[4] + s[4] + 1)>>1;
- d[5] = (unsigned int)(d[5] + s[5] + 1)>>1;
- d[6] = (unsigned int)(d[6] + s[6] + 1)>>1;
- d[7] = (unsigned int)(d[7] + s[7] + 1)>>1;
- }
- }
- static __inline void reconstruct_recv(unsigned char *s, unsigned char *d, int lx, int lx2, int h)
- {
- unsigned char *dp,*sp,*sp2;
- int j;
- sp = s;
- sp2 = s + lx;
- dp = d;
- for(j = 0; j < h; j++)
- {
- dp[0] = (unsigned int)(sp[0] + sp2[0] + 1) >> 1;
- dp[1] = (unsigned int)(sp[1] + sp2[1] + 1) >> 1;
- dp[2] = (unsigned int)(sp[2] + sp2[2] + 1) >> 1;
- dp[3] = (unsigned int)(sp[3] + sp2[3] + 1) >> 1;
- dp[4] = (unsigned int)(sp[4] + sp2[4] + 1) >> 1;
- dp[5] = (unsigned int)(sp[5] + sp2[5] + 1) >> 1;
- dp[6] = (unsigned int)(sp[6] + sp2[6] + 1) >> 1;
- dp[7] = (unsigned int)(sp[7] + sp2[7] + 1) >> 1;
- dp[8] = (unsigned int)(sp[8] + sp2[8] + 1) >> 1;
- dp[9] = (unsigned int)(sp[9] + sp2[9] + 1) >> 1;
- dp[10] = (unsigned int)(sp[10] + sp2[10] + 1) >> 1;
- dp[11] = (unsigned int)(sp[11] + sp2[11] + 1) >> 1;
- dp[12] = (unsigned int)(sp[12] + sp2[12] + 1) >> 1;
- dp[13] = (unsigned int)(sp[13] + sp2[13] + 1) >> 1;
- dp[14] = (unsigned int)(sp[14] + sp2[14] + 1) >> 1;
- dp[15] = (unsigned int)(sp[15] + sp2[15] + 1) >> 1;
- sp+= lx2;
- sp2+= lx2;
- dp+= lx2;
- }
- }
- static __inline void recvc(unsigned char *s, unsigned char *d, int lx, int lx2, int h)
- {
- unsigned char *dp,*sp,*sp2;
- int j;
- sp = s;
- sp2 = s+lx;
- dp = d;
- for(j = 0; j < h; j++)
- {
- dp[0] = (unsigned int)(sp[0]+sp2[0]+1)>>1;
- dp[1] = (unsigned int)(sp[1]+sp2[1]+1)>>1;
- dp[2] = (unsigned int)(sp[2]+sp2[2]+1)>>1;
- dp[3] = (unsigned int)(sp[3]+sp2[3]+1)>>1;
- dp[4] = (unsigned int)(sp[4]+sp2[4]+1)>>1;
- dp[5] = (unsigned int)(sp[5]+sp2[5]+1)>>1;
- dp[6] = (unsigned int)(sp[6]+sp2[6]+1)>>1;
- dp[7] = (unsigned int)(sp[7]+sp2[7]+1)>>1;
- sp+= lx2;
- sp2+= lx2;
- dp+= lx2;
- }
- }
- static __inline void recva(unsigned char *s, unsigned char *d, int lx, int lx2, int h)
- {
- unsigned char *dp,*sp,*sp2;
- int j;
- sp = s;
- sp2 = s+lx;
- dp = d;
- for (j=0; j<h; j++){
- dp[0] = (dp[0] + ((unsigned int)(sp[0]+sp2[0]+1)>>1) + 1)>>1;
- dp[1] = (dp[1] + ((unsigned int)(sp[1]+sp2[1]+1)>>1) + 1)>>1;
- dp[2] = (dp[2] + ((unsigned int)(sp[2]+sp2[2]+1)>>1) + 1)>>1;
- dp[3] = (dp[3] + ((unsigned int)(sp[3]+sp2[3]+1)>>1) + 1)>>1;
- dp[4] = (dp[4] + ((unsigned int)(sp[4]+sp2[4]+1)>>1) + 1)>>1;
- dp[5] = (dp[5] + ((unsigned int)(sp[5]+sp2[5]+1)>>1) + 1)>>1;
- dp[6] = (dp[6] + ((unsigned int)(sp[6]+sp2[6]+1)>>1) + 1)>>1;
- dp[7] = (dp[7] + ((unsigned int)(sp[7]+sp2[7]+1)>>1) + 1)>>1;
- dp[8] = (dp[8] + ((unsigned int)(sp[8]+sp2[8]+1)>>1) + 1)>>1;
- dp[9] = (dp[9] + ((unsigned int)(sp[9]+sp2[9]+1)>>1) + 1)>>1;
- dp[10] = (dp[10] + ((unsigned int)(sp[10]+sp2[10]+1)>>1) + 1)>>1;
- dp[11] = (dp[11] + ((unsigned int)(sp[11]+sp2[11]+1)>>1) + 1)>>1;
- dp[12] = (dp[12] + ((unsigned int)(sp[12]+sp2[12]+1)>>1) + 1)>>1;
- dp[13] = (dp[13] + ((unsigned int)(sp[13]+sp2[13]+1)>>1) + 1)>>1;
- dp[14] = (dp[14] + ((unsigned int)(sp[14]+sp2[14]+1)>>1) + 1)>>1;
- dp[15] = (dp[15] + ((unsigned int)(sp[15]+sp2[15]+1)>>1) + 1)>>1;
- sp+= lx2;
- sp2+= lx2;
- dp+= lx2;
- }
- }
- static __inline void recvac(unsigned char *s, unsigned char *d, int lx,int lx2, int h){
- unsigned char *dp,*sp,*sp2;
- int j;
- sp = s;
- sp2 = s+lx;
- dp = d;
- for (j=0; j<h; j++){
- dp[0] = (dp[0] + ((unsigned int)(sp[0]+sp2[0]+1)>>1) + 1)>>1;
- dp[1] = (dp[1] + ((unsigned int)(sp[1]+sp2[1]+1)>>1) + 1)>>1;
- dp[2] = (dp[2] + ((unsigned int)(sp[2]+sp2[2]+1)>>1) + 1)>>1;
- dp[3] = (dp[3] + ((unsigned int)(sp[3]+sp2[3]+1)>>1) + 1)>>1;
- dp[4] = (dp[4] + ((unsigned int)(sp[4]+sp2[4]+1)>>1) + 1)>>1;
- dp[5] = (dp[5] + ((unsigned int)(sp[5]+sp2[5]+1)>>1) + 1)>>1;
- dp[6] = (dp[6] + ((unsigned int)(sp[6]+sp2[6]+1)>>1) + 1)>>1;
- dp[7] = (dp[7] + ((unsigned int)(sp[7]+sp2[7]+1)>>1) + 1)>>1;
- sp+= lx2;
- sp2+= lx2;
- dp+= lx2;
- }
- }
- static __inline void rech(unsigned char *s, unsigned char *d, int lx2, int h){
- unsigned char *dp,*sp;
- unsigned int s1,s2;
- int j;
- sp = s;
- dp = d;
- for (j=0; j<h; j++){
- s1=sp[0];
- dp[0] = (unsigned int)(s1+(s2=sp[1])+1)>>1;
- dp[1] = (unsigned int)(s2+(s1=sp[2])+1)>>1;
- dp[2] = (unsigned int)(s1+(s2=sp[3])+1)>>1;
- dp[3] = (unsigned int)(s2+(s1=sp[4])+1)>>1;
- dp[4] = (unsigned int)(s1+(s2=sp[5])+1)>>1;
- dp[5] = (unsigned int)(s2+(s1=sp[6])+1)>>1;
- dp[6] = (unsigned int)(s1+(s2=sp[7])+1)>>1;
- dp[7] = (unsigned int)(s2+(s1=sp[8])+1)>>1;
- dp[8] = (unsigned int)(s1+(s2=sp[9])+1)>>1;
- dp[9] = (unsigned int)(s2+(s1=sp[10])+1)>>1;
- dp[10] = (unsigned int)(s1+(s2=sp[11])+1)>>1;
- dp[11] = (unsigned int)(s2+(s1=sp[12])+1)>>1;
- dp[12] = (unsigned int)(s1+(s2=sp[13])+1)>>1;
- dp[13] = (unsigned int)(s2+(s1=sp[14])+1)>>1;
- dp[14] = (unsigned int)(s1+(s2=sp[15])+1)>>1;
- dp[15] = (unsigned int)(s2+sp[16]+1)>>1;
- sp+= lx2;
- dp+= lx2;
- }
- }
- static __inline void rechc(unsigned char *s,unsigned char *d, int lx2, int h){
- unsigned char *dp,*sp;
- unsigned int s1,s2;
- int j;
- sp = s;
- dp = d;
- for (j=0; j<h; j++){
- s1=sp[0];
- dp[0] = (unsigned int)(s1+(s2=sp[1])+1)>>1;
- dp[1] = (unsigned int)(s2+(s1=sp[2])+1)>>1;
- dp[2] = (unsigned int)(s1+(s2=sp[3])+1)>>1;
- dp[3] = (unsigned int)(s2+(s1=sp[4])+1)>>1;
- dp[4] = (unsigned int)(s1+(s2=sp[5])+1)>>1;
- dp[5] = (unsigned int)(s2+(s1=sp[6])+1)>>1;
- dp[6] = (unsigned int)(s1+(s2=sp[7])+1)>>1;
- dp[7] = (unsigned int)(s2+sp[8]+1)>>1;
- sp+= lx2;
- dp+= lx2;
- }
- }
- static __inline void recha(unsigned char *s, unsigned char *d,int lx2, int h)
- {
- unsigned char *dp,*sp;
- unsigned int s1,s2;
- int j;
- sp = s;
- dp = d;
- for (j = 0; j < h; j++)
- {
- s1 = sp[0];
- dp[0] = (dp[0] + ((unsigned int)(s1 + (s2 = sp[1]) + 1) >> 1) + 1) >> 1;
- dp[1] = (dp[1] + ((unsigned int)(s2 + (s1 = sp[2]) + 1) >> 1) + 1) >> 1;
- dp[2] = (dp[2] + ((unsigned int)(s1 + (s2 = sp[3]) + 1) >> 1) + 1) >> 1;
- dp[3] = (dp[3] + ((unsigned int)(s2 + (s1 = sp[4]) + 1) >> 1) + 1) >> 1;
- dp[4] = (dp[4] + ((unsigned int)(s1 + (s2 = sp[5]) + 1) >> 1) + 1) >> 1;
- dp[5] = (dp[5] + ((unsigned int)(s2 + (s1 = sp[6]) + 1) >> 1) + 1) >> 1;
- dp[6] = (dp[6] + ((unsigned int)(s1 + (s2 = sp[7]) + 1) >> 1) + 1) >> 1;
- dp[7] = (dp[7] + ((unsigned int)(s2 + (s1 = sp[8]) + 1) >> 1) + 1) >> 1;
- dp[8] = (dp[8] + ((unsigned int)(s1 + (s2 = sp[9]) + 1) >> 1) + 1) >> 1;
- dp[9] = (dp[9] + ((unsigned int)(s2 + (s1 = sp[10]) + 1) >> 1) + 1) >> 1;
- dp[10] = (dp[10] + ((unsigned int)(s1 + (s2 = sp[11]) + 1) >> 1) + 1) >> 1;
- dp[11] = (dp[11] + ((unsigned int)(s2 + (s1 = sp[12]) + 1) >> 1) + 1) >> 1;
- dp[12] = (dp[12] + ((unsigned int)(s1 + (s2 = sp[13]) + 1) >> 1) + 1) >> 1;
- dp[13] = (dp[13] + ((unsigned int)(s2 + (s1 = sp[14]) + 1) >> 1) + 1) >> 1;
- dp[14] = (dp[14] + ((unsigned int)(s1 + (s2 = sp[15]) + 1) >> 1) + 1) >> 1;
- dp[15] = (dp[15] + ((unsigned int)(s2 + sp[16] + 1) >> 1) + 1) >> 1;
- sp += lx2;
- dp += lx2;
- }
- }
- static __inline void rechac(unsigned char *s,unsigned char *d, int lx2, int h)
- {
- unsigned char *dp,*sp;
- unsigned int s1,s2;
- int j;
- sp = s;
- dp = d;
- for(j = 0; j < h; j++)
- {
- s1 = sp[0];
- dp[0] = (dp[0] + ((unsigned int)(s1 + (s2 = sp[1]) + 1) >> 1) + 1) >> 1;
- dp[1] = (dp[1] + ((unsigned int)(s2 + (s1 = sp[2]) + 1) >> 1) + 1) >> 1;
- dp[2] = (dp[2] + ((unsigned int)(s1 + (s2 = sp[3]) + 1) >> 1) + 1) >> 1;
- dp[3] = (dp[3] + ((unsigned int)(s2 + (s1 = sp[4]) + 1) >> 1) + 1) >> 1;
- dp[4] = (dp[4] + ((unsigned int)(s1 + (s2 = sp[5]) + 1) >> 1) + 1) >> 1;
- dp[5] = (dp[5] + ((unsigned int)(s2 + (s1 = sp[6]) + 1) >> 1) + 1) >> 1;
- dp[6] = (dp[6] + ((unsigned int)(s1 + (s2 = sp[7]) + 1) >> 1) + 1) >> 1;
- dp[7] = (dp[7] + ((unsigned int)(s2 + sp[8] + 1) >> 1) + 1) >> 1;
- sp += lx2;
- dp += lx2;
- }
- }
- static __inline void rec4(unsigned char *s, unsigned char *d, int lx, int lx2, int h)
- {
- unsigned char *dp,*sp,*sp2;
- unsigned int s1,s2,s3,s4;
- int j;
- sp = s;
- sp2 = s+lx;
- dp = d;
- for (j=0; j<h; j++){
- s1=sp[0]; s3=sp2[0];
- dp[0] = (unsigned int)(s1+(s2=sp[1])+s3+(s4=sp2[1])+2)>>2;
- dp[1] = (unsigned int)(s2+(s1=sp[2])+s4+(s3=sp2[2])+2)>>2;
- dp[2] = (unsigned int)(s1+(s2=sp[3])+s3+(s4=sp2[3])+2)>>2;
- dp[3] = (unsigned int)(s2+(s1=sp[4])+s4+(s3=sp2[4])+2)>>2;
- dp[4] = (unsigned int)(s1+(s2=sp[5])+s3+(s4=sp2[5])+2)>>2;
- dp[5] = (unsigned int)(s2+(s1=sp[6])+s4+(s3=sp2[6])+2)>>2;
- dp[6] = (unsigned int)(s1+(s2=sp[7])+s3+(s4=sp2[7])+2)>>2;
- dp[7] = (unsigned int)(s2+(s1=sp[8])+s4+(s3=sp2[8])+2)>>2;
- dp[8] = (unsigned int)(s1+(s2=sp[9])+s3+(s4=sp2[9])+2)>>2;
- dp[9] = (unsigned int)(s2+(s1=sp[10])+s4+(s3=sp2[10])+2)>>2;
- dp[10] = (unsigned int)(s1+(s2=sp[11])+s3+(s4=sp2[11])+2)>>2;
- dp[11] = (unsigned int)(s2+(s1=sp[12])+s4+(s3=sp2[12])+2)>>2;
- dp[12] = (unsigned int)(s1+(s2=sp[13])+s3+(s4=sp2[13])+2)>>2;
- dp[13] = (unsigned int)(s2+(s1=sp[14])+s4+(s3=sp2[14])+2)>>2;
- dp[14] = (unsigned int)(s1+(s2=sp[15])+s3+(s4=sp2[15])+2)>>2;
- dp[15] = (unsigned int)(s2+sp[16]+s4+sp2[16]+2)>>2;
- sp+= lx2;
- sp2+= lx2;
- dp+= lx2;
- }
- }
- static __inline void rec4c(unsigned char *s,unsigned char *d, int lx, int lx2, int h)
- {
- unsigned char *dp,*sp,*sp2;
- unsigned int s1,s2,s3,s4;
- int j;
- sp = s;
- sp2 = s+lx;
- dp = d;
- for (j=0; j<h; j++){
- s1=sp[0]; s3=sp2[0];
- dp[0] = (unsigned int)(s1+(s2=sp[1])+s3+(s4=sp2[1])+2)>>2;
- dp[1] = (unsigned int)(s2+(s1=sp[2])+s4+(s3=sp2[2])+2)>>2;
- dp[2] = (unsigned int)(s1+(s2=sp[3])+s3+(s4=sp2[3])+2)>>2;
- dp[3] = (unsigned int)(s2+(s1=sp[4])+s4+(s3=sp2[4])+2)>>2;
- dp[4] = (unsigned int)(s1+(s2=sp[5])+s3+(s4=sp2[5])+2)>>2;
- dp[5] = (unsigned int)(s2+(s1=sp[6])+s4+(s3=sp2[6])+2)>>2;
- dp[6] = (unsigned int)(s1+(s2=sp[7])+s3+(s4=sp2[7])+2)>>2;
- dp[7] = (unsigned int)(s2+sp[8]+s4+sp2[8]+2)>>2;
- sp+= lx2;
- sp2+= lx2;
- dp+= lx2;
- }
- }
- static __inline void rec4a(unsigned char *s,unsigned char *d, int lx, int lx2, int h)
- {
- unsigned char *dp=d, *sp=s, *sp2=s+lx;
- unsigned int s1, s2, s3, s4;
- int j;
- /*
- sp = s;
- sp2 = s+lx;
- dp = d;
- */
- for (j=0; j<h; j++){
- s1=sp[0]; s3=sp2[0];
- dp[0] = (dp[0] + ((unsigned int)(s1+(s2=sp[1])+s3+(s4=sp2[1])+2)>>2) + 1)>>1;
- dp[1] = (dp[1] + ((unsigned int)(s2+(s1=sp[2])+s4+(s3=sp2[2])+2)>>2) + 1)>>1;
- dp[2] = (dp[2] + ((unsigned int)(s1+(s2=sp[3])+s3+(s4=sp2[3])+2)>>2) + 1)>>1;
- dp[3] = (dp[3] + ((unsigned int)(s2+(s1=sp[4])+s4+(s3=sp2[4])+2)>>2) + 1)>>1;
- dp[4] = (dp[4] + ((unsigned int)(s1+(s2=sp[5])+s3+(s4=sp2[5])+2)>>2) + 1)>>1;
- dp[5] = (dp[5] + ((unsigned int)(s2+(s1=sp[6])+s4+(s3=sp2[6])+2)>>2) + 1)>>1;
- dp[6] = (dp[6] + ((unsigned int)(s1+(s2=sp[7])+s3+(s4=sp2[7])+2)>>2) + 1)>>1;
- dp[7] = (dp[7] + ((unsigned int)(s2+(s1=sp[8])+s4+(s3=sp2[8])+2)>>2) + 1)>>1;
- dp[8] = (dp[8] + ((unsigned int)(s1+(s2=sp[9])+s3+(s4=sp2[9])+2)>>2) + 1)>>1;
- dp[9] = (dp[9] + ((unsigned int)(s2+(s1=sp[10])+s4+(s3=sp2[10])+2)>>2) + 1)>>1;
- dp[10] = (dp[10] + ((unsigned int)(s1+(s2=sp[11])+s3+(s4=sp2[11])+2)>>2) + 1)>>1;
- dp[11] = (dp[11] + ((unsigned int)(s2+(s1=sp[12])+s4+(s3=sp2[12])+2)>>2) + 1)>>1;
- dp[12] = (dp[12] + ((unsigned int)(s1+(s2=sp[13])+s3+(s4=sp2[13])+2)>>2) + 1)>>1;
- dp[13] = (dp[13] + ((unsigned int)(s2+(s1=sp[14])+s4+(s3=sp2[14])+2)>>2) + 1)>>1;
- dp[14] = (dp[14] + ((unsigned int)(s1+(s2=sp[15])+s3+(s4=sp2[15])+2)>>2) + 1)>>1;
- dp[15] = (dp[15] + ((unsigned int)(s2+sp[16]+s4+sp2[16]+2)>>2) + 1)>>1;
- sp+= lx2;
- sp2+= lx2;
- dp+= lx2;
- }
- }
- static __inline void rec4ac(unsigned char *s,unsigned char *d, int lx, int lx2, int h)
- {
- unsigned char *dp=d, *sp=s, *sp2=s+lx;
- unsigned int s1,s2,s3,s4;
- int j;
- /*
- sp = s;
- sp2 = s+lx;
- dp = d;
- */
- for (j=0; j<h; j++)
- {
- s1=sp[0]; s3=sp2[0];
- dp[0] = (dp[0] + ((unsigned int)(s1+(s2=sp[1])+s3+(s4=sp2[1])+2)>>2) + 1)>>1;
- dp[1] = (dp[1] + ((unsigned int)(s2+(s1=sp[2])+s4+(s3=sp2[2])+2)>>2) + 1)>>1;
- dp[2] = (dp[2] + ((unsigned int)(s1+(s2=sp[3])+s3+(s4=sp2[3])+2)>>2) + 1)>>1;
- dp[3] = (dp[3] + ((unsigned int)(s2+(s1=sp[4])+s4+(s3=sp2[4])+2)>>2) + 1)>>1;
- dp[4] = (dp[4] + ((unsigned int)(s1+(s2=sp[5])+s3+(s4=sp2[5])+2)>>2) + 1)>>1;
- dp[5] = (dp[5] + ((unsigned int)(s2+(s1=sp[6])+s4+(s3=sp2[6])+2)>>2) + 1)>>1;
- dp[6] = (dp[6] + ((unsigned int)(s1+(s2=sp[7])+s3+(s4=sp2[7])+2)>>2) + 1)>>1;
- dp[7] = (dp[7] + ((unsigned int)(s2+sp[8]+s4+sp2[8]+2)>>2) + 1)>>1;
- sp+= lx2;
- sp2+= lx2;
- dp+= lx2;
- }
- }
- static __inline
- void recon_comp(mpeg3video_t *video,
- unsigned char *src,
- unsigned char *dst,
- int lx,
- int lx2,
- int w,
- int h,
- int x,
- int y,
- int dx,
- int dy,
- int addflag)
- {
- int switcher;
- unsigned char *s, *d;
- /* half pel scaling */
- switcher = (dx & 1) << 3 | (dy & 1) << 2 | w;
- if(addflag) switcher |= 2;
- /* origins */
- s = src + lx * (y + (dy >> 1)) + x + (dx >> 1);
- d = dst + lx * y + x;
- // Accelerated functions
- #ifdef HAVE_MMX
- if(video->have_mmx)
- {
- switch(switcher)
- {
- case 0x3: reca_mmx(s, d, lx2, h); break;
- case 0x2: recac_mmx(s, d, lx2, h); break;
- case 0x1: rec_mmx(s, d, lx2, h); break;
- case 0x0: recc_mmx(s, d, lx2, h); break;
- case 0x7: recva_mmx(s, d, lx, lx2, h); break;
- case 0x6: recvac_mmx(s, d, lx, lx2, h); break;
- case 0x5: recv_mmx(s, d, lx, lx2, h); break;
- case 0x4: recvc_mmx(s, d, lx, lx2, h); break;
- case 0x9: rech_mmx(s, d, lx2, h); break;
- case 0x8: rechc_mmx(s, d, lx2, h); break;
- }
- }
- else
- #endif
- {
- switch(switcher)
- {
- case 0x3: reca(s, d, lx2, h); break;
- case 0x2: recac(s, d, lx2, h); break;
- case 0x1: rec(s, d, lx2, h); break;
- case 0x0: recc(s, d, lx2, h); break;
- case 0x7: recva(s, d, lx, lx2, h); break;
- case 0x6: recvac(s, d, lx, lx2, h); break;
- case 0x5: reconstruct_recv(s, d, lx, lx2, h); break;
- case 0x4: recvc(s, d, lx, lx2, h); break;
- case 0x9: rech(s, d, lx2, h); break;
- case 0x8: rechc(s, d, lx2, h); break;
- }
- }
- // Unaccelerated functions
- switch(switcher)
- {
- case 0xb: recha(s, d, lx2, h); break;
- case 0xa: rechac(s, d, lx2, h); break;
- case 0xf: rec4a(s, d, lx, lx2, h); break;
- case 0xe: rec4ac(s, d, lx, lx2, h); break;
- case 0xd: rec4(s, d, lx, lx2, h); break;
- case 0xc: rec4c(s, d, lx, lx2, h); break;
- }
- }
- /*
- unsigned char *src[]; * prediction source buffer *
- int sfield; * prediction source field number (0 or 1) *
- unsigned char *dst[]; * prediction destination buffer *
- int dfield; * prediction destination field number (0 or 1)*
- int lx,lx2; * horizontal offsets *
- int w,h; * prediction block/sub-block width, height *
- int x,y; * pixel co-ordinates of top-left sample in current MB *
- int dx,dy; * horizontal, vertical motion vector *
- int addflag; * add prediction error to prediction ? *
- */
- static void recon(mpeg3video_t *video,
- unsigned char *src[],
- int sfield,
- unsigned char *dst[],
- int dfield,
- int lx,
- int lx2,
- int w,
- int h,
- int x,
- int y,
- int dx,
- int dy,
- int addflag)
- {
- /* Y */
- recon_comp(video, (src[0] + (sfield ? (lx2 >> 1) : 0)),
- dst[0] + (dfield ? (lx2 >> 1) : 0),
- lx, lx2, w, h, x, y, dx, dy, addflag);
- if(video->chroma_format != CHROMA444)
- {
- lx >>= 1;
- dx /= 2;
- lx2 >>= 1;
- w = 0;
- x >>= 1;
- }
- if(video->chroma_format == CHROMA420)
- {
- h >>= 1;
- dy /= 2;
- y >>= 1;
- }
- /* Cb */
- recon_comp(video, (src[1] + (sfield ? (lx2 >> 1) : 0)),
- dst[1] + (dfield ? (lx2 >> 1) : 0),
- lx, lx2, w, h, x, y, dx, dy, addflag);
- /* Cr */
- recon_comp(video, (src[2] + (sfield ? (lx2 >> 1) : 0)),
- dst[2] + (dfield ? (lx2 >> 1) : 0),
- lx, lx2, w, h, x, y, dx, dy, addflag);
- }
- #define WIDTH 1
- int mpeg3video_reconstruct(mpeg3video_t *video,
- int bx,
- int by,
- int mb_type,
- int motion_type,
- int PMV[2][2][2],
- int mv_field_sel[2][2],
- int dmvector[2],
- int stwtype)
- {
- int currentfield;
- unsigned char **predframe;
- int DMV[2][2];
- int stwtop, stwbot;
- stwtop = stwtype % 3; /* 0:temporal, 1 : (spat+temp) / 2, 2 : spatial */
- stwbot = stwtype / 3;
- if((mb_type & MB_FORWARD) || (video->pict_type == P_TYPE))
- {
- if(video->pict_struct == FRAME_PICTURE)
- {
- if((motion_type == MC_FRAME) || !(mb_type & MB_FORWARD))
- {
- /* frame-based prediction */
- {
- if(stwtop < 2)
- recon(video, video->oldrefframe, 0, video->newframe, 0,
- video->coded_picture_width, video->coded_picture_width << 1, WIDTH, 8, bx, by,
- PMV[0][0][0], PMV[0][0][1], stwtop);
- if(stwbot < 2)
- recon(video, video->oldrefframe, 1, video->newframe, 1,
- video->coded_picture_width, video->coded_picture_width << 1, WIDTH, 8, bx, by,
- PMV[0][0][0], PMV[0][0][1], stwbot);
- }
- }
- else if(motion_type == MC_FIELD) /* field-based prediction */
- {
- /* top field prediction */
- if(stwtop < 2)
- recon(video, video->oldrefframe, mv_field_sel[0][0], video->newframe, 0,
- video->coded_picture_width << 1, video->coded_picture_width << 1, WIDTH, 8, bx, by >> 1,
- PMV[0][0][0], PMV[0][0][1] >> 1, stwtop);
- /* bottom field prediction */
- if(stwbot < 2)
- recon(video, video->oldrefframe, mv_field_sel[1][0], video->newframe, 1,
- video->coded_picture_width << 1, video->coded_picture_width << 1, WIDTH, 8, bx, by >> 1,
- PMV[1][0][0], PMV[1][0][1] >> 1, stwbot);
- }
- else if(motion_type == MC_DMV)
- {
- /* dual prime prediction */
- /* calculate derived motion vectors */
- mpeg3video_calc_dmv(video,
- DMV,
- dmvector,
- PMV[0][0][0],
- PMV[0][0][1] >> 1);
- if(stwtop < 2)
- {
- /* predict top field from top field */
- recon(video, video->oldrefframe, 0, video->newframe, 0,
- video->coded_picture_width << 1, video->coded_picture_width << 1, WIDTH, 8, bx, by>>1,
- PMV[0][0][0], PMV[0][0][1] >> 1, 0);
- /* predict and add to top field from bottom field */
- recon(video, video->oldrefframe, 1, video->newframe, 0,
- video->coded_picture_width << 1, video->coded_picture_width << 1, WIDTH, 8, bx, by>>1,
- DMV[0][0], DMV[0][1], 1);
- }
- if(stwbot < 2)
- {
- /* predict bottom field from bottom field */
- recon(video, video->oldrefframe, 1, video->newframe, 1,
- video->coded_picture_width << 1, video->coded_picture_width << 1, WIDTH, 8, bx, by>>1,
- PMV[0][0][0], PMV[0][0][1]>>1, 0);
- /* predict and add to bottom field from top field */
- recon(video, video->oldrefframe, 0, video->newframe, 1,
- video->coded_picture_width << 1, video->coded_picture_width<<1, WIDTH, 8, bx, by>>1,
- DMV[1][0], DMV[1][1], 1);
- }
- }
- else
- /* invalid motion_type */
- /* fprintf(stderr, "reconstruct: invalid motion_typen"); */
- ;
- }
- else
- {
- /* TOP_FIELD or BOTTOM_FIELD */
- /* field picture */
- currentfield = (video->pict_struct == BOTTOM_FIELD);
- /* determine which frame to use for prediction */
- if((video->pict_type == P_TYPE) && video->secondfield
- && (currentfield != mv_field_sel[0][0]))
- predframe = video->refframe; /* same frame */
- else
- predframe = video->oldrefframe; /* previous frame */
- if((motion_type == MC_FIELD) || !(mb_type & MB_FORWARD))
- {
- /* field-based prediction */
- if(stwtop < 2)
- recon(video, predframe,mv_field_sel[0][0],video->newframe,0,
- video->coded_picture_width << 1,video->coded_picture_width << 1,WIDTH,16,bx,by,
- PMV[0][0][0],PMV[0][0][1],stwtop);
- }
- else
- if(motion_type == MC_16X8)
- {
- if(stwtop < 2)
- {
- recon(video, predframe, mv_field_sel[0][0], video->newframe, 0,
- video->coded_picture_width << 1, video->coded_picture_width << 1, WIDTH, 8, bx, by,
- PMV[0][0][0], PMV[0][0][1], stwtop);
- /* determine which frame to use for lower half prediction */
- if((video->pict_type==P_TYPE) && video->secondfield
- && (currentfield!=mv_field_sel[1][0]))
- predframe = video->refframe; /* same frame */
- else
- predframe = video->oldrefframe; /* previous frame */
- recon(video, predframe, mv_field_sel[1][0], video->newframe, 0,
- video->coded_picture_width << 1, video->coded_picture_width << 1, WIDTH, 8, bx, by+8,
- PMV[1][0][0], PMV[1][0][1], stwtop);
- }
- }
- else
- if(motion_type == MC_DMV) /* dual prime prediction */
- {
- if(video->secondfield)
- predframe = video->refframe; /* same frame */
- else
- predframe = video->oldrefframe; /* previous frame */
- /* calculate derived motion vectors */
- mpeg3video_calc_dmv(video,
- DMV,
- dmvector,
- PMV[0][0][0],
- PMV[0][0][1]);
- /* predict from field of same parity */
- recon(video, video->oldrefframe, currentfield, video->newframe, 0,
- video->coded_picture_width << 1, video->coded_picture_width << 1, WIDTH, 16, bx, by,
- PMV[0][0][0], PMV[0][0][1], 0);
- /* predict from field of opposite parity */
- recon(video, predframe, !currentfield, video->newframe, 0,
- video->coded_picture_width << 1, video->coded_picture_width << 1, WIDTH, 16, bx, by,
- DMV[0][0], DMV[0][1], 1);
- }
- else
- /* invalid motion_type */
- /* fprintf(stderr, "reconstruct: invalid motion_typen"); */
- ;
- }
- stwtop = stwbot = 1;
- }
- if(mb_type & MB_BACKWARD)
- {
- if(video->pict_struct == FRAME_PICTURE)
- {
- if(motion_type == MC_FRAME)
- {
- /* frame-based prediction */
- if(stwtop < 2)
- recon(video, video->refframe, 0, video->newframe, 0,
- video->coded_picture_width, video->coded_picture_width << 1, WIDTH, 8, bx, by,
- PMV[0][1][0], PMV[0][1][1], stwtop);
- if(stwbot < 2)
- recon(video, video->refframe, 1, video->newframe, 1,
- video->coded_picture_width, video->coded_picture_width << 1, WIDTH, 8, bx, by,
- PMV[0][1][0], PMV[0][1][1], stwbot);
- }
- else
- {
- /* field-based prediction */
- /* top field prediction */
- if(stwtop < 2)
- {
- recon(video, video->refframe, mv_field_sel[0][1], video->newframe, 0,
- (video->coded_picture_width << 1), (video->coded_picture_width<<1), WIDTH, 8, bx, (by >> 1),
- PMV[0][1][0], (PMV[0][1][1] >> 1), stwtop);
- }
- /* bottom field prediction */
- if(stwbot < 2)
- {
- recon(video, video->refframe, mv_field_sel[1][1], video->newframe, 1, (video->coded_picture_width << 1),
- (video->coded_picture_width << 1), WIDTH, 8, bx, (by>>1),
- PMV[1][1][0], (PMV[1][1][1]>>1), stwbot);
- }
- }
- }
- else
- {
- /* TOP_FIELD or BOTTOM_FIELD */
- /* field picture */
- if(motion_type == MC_FIELD)
- {
- /* field-based prediction */
- recon(video, video->refframe, mv_field_sel[0][1], video->newframe, 0,
- video->coded_picture_width << 1, video->coded_picture_width << 1, WIDTH, 16, bx, by,
- PMV[0][1][0], PMV[0][1][1], stwtop);
- }
- else if(motion_type==MC_16X8)
- {
- recon(video, video->refframe, mv_field_sel[0][1], video->newframe, 0,
- video->coded_picture_width << 1, video->coded_picture_width << 1, WIDTH, 8, bx, by,
- PMV[0][1][0], PMV[0][1][1], stwtop);
- recon(video, video->refframe, mv_field_sel[1][1], video->newframe, 0,
- video->coded_picture_width << 1, video->coded_picture_width << 1, WIDTH, 8, bx, by+8,
- PMV[1][1][0], PMV[1][1][1], stwtop);
- }
- else
- /* invalid motion_type */
- /* fprintf(stderr, "reconstruct: invalid motion_typen"); */
- ;
- }
- } /* mb_type & MB_BACKWARD */
- return 0;
- }