37 #if HAVE_ALTIVEC && HAVE_BIGENDIAN 43 #define VEC_1D_DCT(vb0,vb1,vb2,vb3,va0,va1,va2,va3) \ 45 vz0 = vec_add(vb0,vb2); \ 46 vz1 = vec_sub(vb0,vb2); \ 47 vz2 = vec_sra(vb1,vec_splat_u16(1)); \ 48 vz2 = vec_sub(vz2,vb3); \ 49 vz3 = vec_sra(vb3,vec_splat_u16(1)); \ 50 vz3 = vec_add(vb1,vz3); \ 52 va0 = vec_add(vz0,vz3); \ 53 va1 = vec_add(vz1,vz2); \ 54 va2 = vec_sub(vz1,vz2); \ 55 va3 = vec_sub(vz0,vz3) 57 #define VEC_TRANSPOSE_4(a0,a1,a2,a3,b0,b1,b2,b3) \ 58 b0 = vec_mergeh( a0, a0 ); \ 59 b1 = vec_mergeh( a1, a0 ); \ 60 b2 = vec_mergeh( a2, a0 ); \ 61 b3 = vec_mergeh( a3, a0 ); \ 62 a0 = vec_mergeh( b0, b2 ); \ 63 a1 = vec_mergel( b0, b2 ); \ 64 a2 = vec_mergeh( b1, b3 ); \ 65 a3 = vec_mergel( b1, b3 ); \ 66 b0 = vec_mergeh( a0, a2 ); \ 67 b1 = vec_mergel( a0, a2 ); \ 68 b2 = vec_mergeh( a1, a3 ); \ 69 b3 = vec_mergel( a1, a3 ) 71 #define VEC_LOAD_U8_ADD_S16_STORE_U8(va) \ 72 vdst_orig = vec_ld(0, dst); \ 73 vdst = vec_perm(vdst_orig, zero_u8v, vdst_mask); \ 74 vdst_ss = (vec_s16) vec_mergeh(zero_u8v, vdst); \ 75 va = vec_add(va, vdst_ss); \ 76 va_u8 = vec_packsu(va, zero_s16v); \ 77 va_u32 = vec_splat((vec_u32)va_u8, 0); \ 78 vec_ste(va_u32, element, (uint32_t*)dst); 84 vec_s16 vtmp0, vtmp1, vtmp2, vtmp3;
88 const vec_u16 v6us = vec_splat_u16(6);
90 vec_u8 vdst_mask = vec_lvsl(0, dst);
91 int element = ((
unsigned long)dst & 0xf) >> 2;
96 vtmp0 = vec_ld(0,block);
97 vtmp1 = vec_sld(vtmp0, vtmp0, 8);
98 vtmp2 = vec_ld(16,block);
99 vtmp3 = vec_sld(vtmp2, vtmp2, 8);
100 memset(block, 0, 16 *
sizeof(int16_t));
102 VEC_1D_DCT(vtmp0,vtmp1,vtmp2,vtmp3,va0,va1,va2,va3);
103 VEC_TRANSPOSE_4(va0,va1,va2,va3,vtmp0,vtmp1,vtmp2,vtmp3);
104 VEC_1D_DCT(vtmp0,vtmp1,vtmp2,vtmp3,va0,va1,va2,va3);
106 va0 = vec_sra(va0,v6us);
107 va1 = vec_sra(va1,v6us);
108 va2 = vec_sra(va2,v6us);
109 va3 = vec_sra(va3,v6us);
111 VEC_LOAD_U8_ADD_S16_STORE_U8(va0);
113 VEC_LOAD_U8_ADD_S16_STORE_U8(va1);
115 VEC_LOAD_U8_ADD_S16_STORE_U8(va2);
117 VEC_LOAD_U8_ADD_S16_STORE_U8(va3);
120 #define IDCT8_1D_ALTIVEC(s0, s1, s2, s3, s4, s5, s6, s7, d0, d1, d2, d3, d4, d5, d6, d7) {\ 122 vec_s16 a0v = vec_add(s0, s4); \ 124 vec_s16 a2v = vec_sub(s0, s4); \ 126 vec_s16 a4v = vec_sub(vec_sra(s2, onev), s6); \ 128 vec_s16 a6v = vec_add(vec_sra(s6, onev), s2); \ 130 vec_s16 b0v = vec_add(a0v, a6v); \ 132 vec_s16 b2v = vec_add(a2v, a4v); \ 134 vec_s16 b4v = vec_sub(a2v, a4v); \ 136 vec_s16 b6v = vec_sub(a0v, a6v); \ 139 vec_s16 a1v = vec_sub( vec_sub(s5, s3), vec_add(s7, vec_sra(s7, onev)) ); \ 142 vec_s16 a3v = vec_sub( vec_add(s7, s1), vec_add(s3, vec_sra(s3, onev)) );\ 145 vec_s16 a5v = vec_add( vec_sub(s7, s1), vec_add(s5, vec_sra(s5, onev)) );\ 147 vec_s16 a7v = vec_add( vec_add(s5, s3), vec_add(s1, vec_sra(s1, onev)) );\ 149 vec_s16 b1v = vec_add( vec_sra(a7v, twov), a1v); \ 151 vec_s16 b3v = vec_add(a3v, vec_sra(a5v, twov)); \ 153 vec_s16 b5v = vec_sub( vec_sra(a3v, twov), a5v); \ 155 vec_s16 b7v = vec_sub( a7v, vec_sra(a1v, twov)); \ 157 d0 = vec_add(b0v, b7v); \ 159 d1 = vec_add(b2v, b5v); \ 161 d2 = vec_add(b4v, b3v); \ 163 d3 = vec_add(b6v, b1v); \ 165 d4 = vec_sub(b6v, b1v); \ 167 d5 = vec_sub(b4v, b3v); \ 169 d6 = vec_sub(b2v, b5v); \ 171 d7 = vec_sub(b0v, b7v); \ 174 #define ALTIVEC_STORE_SUM_CLIP(dest, idctv, perm_ldv, perm_stv, sel) { \ 176 vec_u8 hv = vec_ld( 0, dest ); \ 177 vec_u8 lv = vec_ld( 7, dest ); \ 178 vec_u8 dstv = vec_perm( hv, lv, (vec_u8)perm_ldv ); \ 179 vec_s16 idct_sh6 = vec_sra(idctv, sixv); \ 180 vec_u16 dst16 = (vec_u16)vec_mergeh(zero_u8v, dstv); \ 181 vec_s16 idstsum = vec_adds(idct_sh6, (vec_s16)dst16); \ 182 vec_u8 idstsum8 = vec_packsu(zero_s16v, idstsum); \ 185 vec_u8 bodyv = vec_perm( idstsum8, idstsum8, perm_stv );\ 186 vec_u8 edgelv = vec_perm( sel, zero_u8v, perm_stv ); \ 187 lv = vec_sel( lv, bodyv, edgelv ); \ 188 vec_st( lv, 7, dest ); \ 189 hv = vec_ld( 0, dest ); \ 190 edgehv = vec_perm( zero_u8v, sel, perm_stv ); \ 191 hv = vec_sel( hv, bodyv, edgehv ); \ 192 vec_st( hv, 0, dest ); \ 195 static void h264_idct8_add_altivec(
uint8_t *dst, int16_t *dct,
int stride)
197 vec_s16 s0, s1, s2, s3, s4, s5, s6, s7;
198 vec_s16 d0, d1, d2, d3, d4, d5, d6, d7;
199 vec_s16 idct0, idct1, idct2, idct3, idct4, idct5,
idct6, idct7;
201 vec_u8 perm_ldv = vec_lvsl(0, dst);
202 vec_u8 perm_stv = vec_lvsr(8, dst);
204 const vec_u16 onev = vec_splat_u16(1);
205 const vec_u16 twov = vec_splat_u16(2);
206 const vec_u16 sixv = vec_splat_u16(6);
208 const vec_u8 sel = (
vec_u8) {0,0,0,0,0,0,0,0,-1,-1,-1,-1,-1,-1,-1,-1};
213 s0 = vec_ld(0x00, (int16_t*)dct);
214 s1 = vec_ld(0x10, (int16_t*)dct);
215 s2 = vec_ld(0x20, (int16_t*)dct);
216 s3 = vec_ld(0x30, (int16_t*)dct);
217 s4 = vec_ld(0x40, (int16_t*)dct);
218 s5 = vec_ld(0x50, (int16_t*)dct);
219 s6 = vec_ld(0x60, (int16_t*)dct);
220 s7 = vec_ld(0x70, (int16_t*)dct);
221 memset(dct, 0, 64 *
sizeof(int16_t));
223 IDCT8_1D_ALTIVEC(s0, s1, s2, s3, s4, s5, s6, s7,
224 d0, d1, d2, d3, d4, d5, d6, d7);
226 TRANSPOSE8( d0, d1, d2, d3, d4, d5, d6, d7 );
228 IDCT8_1D_ALTIVEC(d0, d1, d2, d3, d4, d5, d6, d7,
229 idct0, idct1, idct2, idct3, idct4, idct5, idct6, idct7);
231 ALTIVEC_STORE_SUM_CLIP(&dst[0*stride], idct0, perm_ldv, perm_stv, sel);
232 ALTIVEC_STORE_SUM_CLIP(&dst[1*stride], idct1, perm_ldv, perm_stv, sel);
233 ALTIVEC_STORE_SUM_CLIP(&dst[2*stride], idct2, perm_ldv, perm_stv, sel);
234 ALTIVEC_STORE_SUM_CLIP(&dst[3*stride], idct3, perm_ldv, perm_stv, sel);
235 ALTIVEC_STORE_SUM_CLIP(&dst[4*stride], idct4, perm_ldv, perm_stv, sel);
236 ALTIVEC_STORE_SUM_CLIP(&dst[5*stride], idct5, perm_ldv, perm_stv, sel);
237 ALTIVEC_STORE_SUM_CLIP(&dst[6*stride], idct6, perm_ldv, perm_stv, sel);
238 ALTIVEC_STORE_SUM_CLIP(&dst[7*stride], idct7, perm_ldv, perm_stv, sel);
244 vec_u8 dcplus, dcminus, v0, v1, v2, v3, aligner;
249 dc = (block[0] + 32) >> 6;
251 dc16 = vec_splat((
vec_s16) vec_lde(0, &
dc), 1);
258 aligner = vec_lvsr(0, dst);
259 dcplus = vec_perm(dcplus, dcplus, aligner);
260 dcminus = vec_perm(dcminus, dcminus, aligner);
262 for (i = 0; i <
size; i += 4) {
263 v0 = vec_ld(0, dst+0*stride);
264 v1 = vec_ld(0, dst+1*stride);
265 v2 = vec_ld(0, dst+2*stride);
266 v3 = vec_ld(0, dst+3*stride);
268 v0 = vec_adds(v0, dcplus);
269 v1 = vec_adds(v1, dcplus);
270 v2 = vec_adds(v2, dcplus);
271 v3 = vec_adds(v3, dcplus);
273 v0 = vec_subs(v0, dcminus);
274 v1 = vec_subs(v1, dcminus);
275 v2 = vec_subs(v2, dcminus);
276 v3 = vec_subs(v3, dcminus);
278 vec_st(v0, 0, dst+0*stride);
279 vec_st(v1, 0, dst+1*stride);
280 vec_st(v2, 0, dst+2*stride);
281 vec_st(v3, 0, dst+3*stride);
287 static void h264_idct_dc_add_altivec(
uint8_t *dst, int16_t *block,
int stride)
289 h264_idct_dc_add_internal(dst, block, stride, 4);
292 static void h264_idct8_dc_add_altivec(
uint8_t *dst, int16_t *block,
int stride)
294 h264_idct_dc_add_internal(dst, block, stride, 8);
297 static void h264_idct_add16_altivec(
uint8_t *dst,
const int *block_offset,
298 int16_t *block,
int stride,
303 int nnz = nnzc[
scan8[i] ];
305 if(nnz==1 && block[i*16]) h264_idct_dc_add_altivec(dst + block_offset[i], block + i*16, stride);
306 else h264_idct_add_altivec(dst + block_offset[i], block + i*16, stride);
311 static void h264_idct_add16intra_altivec(
uint8_t *dst,
const int *block_offset,
312 int16_t *block,
int stride,
317 if(nnzc[ scan8[i] ]) h264_idct_add_altivec(dst + block_offset[i], block + i*16, stride);
318 else if(block[i*16]) h264_idct_dc_add_altivec(dst + block_offset[i], block + i*16, stride);
322 static void h264_idct8_add4_altivec(
uint8_t *dst,
const int *block_offset,
323 int16_t *block,
int stride,
327 for(i=0; i<16; i+=4){
328 int nnz = nnzc[ scan8[i] ];
330 if(nnz==1 && block[i*16]) h264_idct8_dc_add_altivec(dst + block_offset[i], block + i*16, stride);
331 else h264_idct8_add_altivec(dst + block_offset[i], block + i*16, stride);
336 static void h264_idct_add8_altivec(
uint8_t **dest,
const int *block_offset,
337 int16_t *block,
int stride,
341 for (j = 1; j < 3; j++) {
342 for(i = j * 16; i < j * 16 + 4; i++){
344 h264_idct_add_altivec(dest[j-1] + block_offset[i], block + i*16, stride);
346 h264_idct_dc_add_altivec(dest[j-1] + block_offset[i], block + i*16, stride);
351 #define transpose4x16(r0, r1, r2, r3) { \ 352 register vec_u8 r4; \ 353 register vec_u8 r5; \ 354 register vec_u8 r6; \ 355 register vec_u8 r7; \ 357 r4 = vec_mergeh(r0, r2); \ 358 r5 = vec_mergel(r0, r2); \ 359 r6 = vec_mergeh(r1, r3); \ 360 r7 = vec_mergel(r1, r3); \ 362 r0 = vec_mergeh(r4, r6); \ 363 r1 = vec_mergel(r4, r6); \ 364 r2 = vec_mergeh(r5, r7); \ 365 r3 = vec_mergel(r5, r7); \ 368 static inline void write16x4(
uint8_t *dst,
int dst_stride,
372 uint32_t *src_int = (uint32_t *)result, *dst_int = (uint32_t *)dst;
373 int int_dst_stride = dst_stride/4;
375 vec_st(r0, 0, result);
376 vec_st(r1, 16, result);
377 vec_st(r2, 32, result);
378 vec_st(r3, 48, result);
381 *(dst_int+ int_dst_stride) = *(src_int + 1);
382 *(dst_int+ 2*int_dst_stride) = *(src_int + 2);
383 *(dst_int+ 3*int_dst_stride) = *(src_int + 3);
384 *(dst_int+ 4*int_dst_stride) = *(src_int + 4);
385 *(dst_int+ 5*int_dst_stride) = *(src_int + 5);
386 *(dst_int+ 6*int_dst_stride) = *(src_int + 6);
387 *(dst_int+ 7*int_dst_stride) = *(src_int + 7);
388 *(dst_int+ 8*int_dst_stride) = *(src_int + 8);
389 *(dst_int+ 9*int_dst_stride) = *(src_int + 9);
390 *(dst_int+10*int_dst_stride) = *(src_int + 10);
391 *(dst_int+11*int_dst_stride) = *(src_int + 11);
392 *(dst_int+12*int_dst_stride) = *(src_int + 12);
393 *(dst_int+13*int_dst_stride) = *(src_int + 13);
394 *(dst_int+14*int_dst_stride) = *(src_int + 14);
395 *(dst_int+15*int_dst_stride) = *(src_int + 15);
401 #define readAndTranspose16x6(src, src_stride, r8, r9, r10, r11, r12, r13) {\ 402 register vec_u8 r0 = unaligned_load(0, src); \ 403 register vec_u8 r1 = unaligned_load( src_stride, src); \ 404 register vec_u8 r2 = unaligned_load(2* src_stride, src); \ 405 register vec_u8 r3 = unaligned_load(3* src_stride, src); \ 406 register vec_u8 r4 = unaligned_load(4* src_stride, src); \ 407 register vec_u8 r5 = unaligned_load(5* src_stride, src); \ 408 register vec_u8 r6 = unaligned_load(6* src_stride, src); \ 409 register vec_u8 r7 = unaligned_load(7* src_stride, src); \ 410 register vec_u8 r14 = unaligned_load(14*src_stride, src); \ 411 register vec_u8 r15 = unaligned_load(15*src_stride, src); \ 413 r8 = unaligned_load( 8*src_stride, src); \ 414 r9 = unaligned_load( 9*src_stride, src); \ 415 r10 = unaligned_load(10*src_stride, src); \ 416 r11 = unaligned_load(11*src_stride, src); \ 417 r12 = unaligned_load(12*src_stride, src); \ 418 r13 = unaligned_load(13*src_stride, src); \ 421 r0 = vec_mergeh(r0, r8); \ 422 r1 = vec_mergeh(r1, r9); \ 423 r2 = vec_mergeh(r2, r10); \ 424 r3 = vec_mergeh(r3, r11); \ 425 r4 = vec_mergeh(r4, r12); \ 426 r5 = vec_mergeh(r5, r13); \ 427 r6 = vec_mergeh(r6, r14); \ 428 r7 = vec_mergeh(r7, r15); \ 431 r8 = vec_mergeh(r0, r4); \ 432 r9 = vec_mergel(r0, r4); \ 433 r10 = vec_mergeh(r1, r5); \ 434 r11 = vec_mergel(r1, r5); \ 435 r12 = vec_mergeh(r2, r6); \ 436 r13 = vec_mergel(r2, r6); \ 437 r14 = vec_mergeh(r3, r7); \ 438 r15 = vec_mergel(r3, r7); \ 441 r0 = vec_mergeh(r8, r12); \ 442 r1 = vec_mergel(r8, r12); \ 443 r2 = vec_mergeh(r9, r13); \ 444 r4 = vec_mergeh(r10, r14); \ 445 r5 = vec_mergel(r10, r14); \ 446 r6 = vec_mergeh(r11, r15); \ 450 r8 = vec_mergeh(r0, r4); \ 451 r9 = vec_mergel(r0, r4); \ 452 r10 = vec_mergeh(r1, r5); \ 453 r11 = vec_mergel(r1, r5); \ 454 r12 = vec_mergeh(r2, r6); \ 455 r13 = vec_mergel(r2, r6); \ 461 static inline vec_u8 diff_lt_altivec (
register vec_u8 x,
465 register vec_u8 diff = vec_subs(x, y);
466 register vec_u8 diffneg = vec_subs(y, x);
467 register vec_u8 o = vec_or(diff, diffneg);
468 o = (
vec_u8)vec_cmplt(o, a);
472 static inline vec_u8 h264_deblock_mask (
register vec_u8 p0,
482 mask = diff_lt_altivec(p0, q0, alpha);
483 tempmask = diff_lt_altivec(p1, p0, beta);
484 mask = vec_and(mask, tempmask);
485 tempmask = diff_lt_altivec(q1, q0, beta);
486 mask = vec_and(mask, tempmask);
492 static inline vec_u8 h264_deblock_q1(
register vec_u8 p0,
498 register vec_u8 average = vec_avg(p0, q0);
506 temp = vec_xor(average, p2);
507 average = vec_avg(average, p2);
508 ones = vec_splat_u8(1);
509 temp = vec_and(temp, ones);
510 uncliped = vec_subs(average, temp);
511 max = vec_adds(p1, tc0);
512 min = vec_subs(p1, tc0);
513 newp1 = vec_max(min, uncliped);
514 newp1 = vec_min(max, newp1);
518 #define h264_deblock_p0_q0(p0, p1, q0, q1, tc0masked) { \ 520 const vec_u8 A0v = vec_sl(vec_splat_u8(10), vec_splat_u8(4)); \ 522 register vec_u8 pq0bit = vec_xor(p0,q0); \ 523 register vec_u8 q1minus; \ 524 register vec_u8 p0minus; \ 525 register vec_u8 stage1; \ 526 register vec_u8 stage2; \ 527 register vec_u8 vec160; \ 528 register vec_u8 delta; \ 529 register vec_u8 deltaneg; \ 531 q1minus = vec_nor(q1, q1); \ 532 stage1 = vec_avg(p1, q1minus); \ 533 stage2 = vec_sr(stage1, vec_splat_u8(1)); \ 534 p0minus = vec_nor(p0, p0); \ 535 stage1 = vec_avg(q0, p0minus); \ 536 pq0bit = vec_and(pq0bit, vec_splat_u8(1)); \ 537 stage2 = vec_avg(stage2, pq0bit); \ 538 stage2 = vec_adds(stage2, stage1); \ 539 vec160 = vec_ld(0, &A0v); \ 540 deltaneg = vec_subs(vec160, stage2); \ 541 delta = vec_subs(stage2, vec160); \ 542 deltaneg = vec_min(tc0masked, deltaneg); \ 543 delta = vec_min(tc0masked, delta); \ 544 p0 = vec_subs(p0, deltaneg); \ 545 q0 = vec_subs(q0, delta); \ 546 p0 = vec_adds(p0, delta); \ 547 q0 = vec_adds(q0, deltaneg); \ 550 #define h264_loop_filter_luma_altivec(p2, p1, p0, q0, q1, q2, alpha, beta, tc0) { \ 551 DECLARE_ALIGNED(16, unsigned char, temp)[16]; \ 552 register vec_u8 alphavec; \ 553 register vec_u8 betavec; \ 554 register vec_u8 mask; \ 555 register vec_u8 p1mask; \ 556 register vec_u8 q1mask; \ 557 register vector signed char tc0vec; \ 558 register vec_u8 finaltc0; \ 559 register vec_u8 tc0masked; \ 560 register vec_u8 newp1; \ 561 register vec_u8 newq1; \ 565 alphavec = vec_ld(0, temp); \ 566 betavec = vec_splat(alphavec, 0x1); \ 567 alphavec = vec_splat(alphavec, 0x0); \ 568 mask = h264_deblock_mask(p0, p1, q0, q1, alphavec, betavec); \ 570 AV_COPY32(temp, tc0); \ 571 tc0vec = vec_ld(0, (signed char*)temp); \ 572 tc0vec = vec_mergeh(tc0vec, tc0vec); \ 573 tc0vec = vec_mergeh(tc0vec, tc0vec); \ 574 mask = vec_and(mask, vec_cmpgt(tc0vec, vec_splat_s8(-1))); \ 575 finaltc0 = vec_and((vec_u8)tc0vec, mask); \ 577 p1mask = diff_lt_altivec(p2, p0, betavec); \ 578 p1mask = vec_and(p1mask, mask); \ 579 tc0masked = vec_and(p1mask, (vec_u8)tc0vec); \ 580 finaltc0 = vec_sub(finaltc0, p1mask); \ 581 newp1 = h264_deblock_q1(p0, p1, p2, q0, tc0masked); \ 584 q1mask = diff_lt_altivec(q2, q0, betavec); \ 585 q1mask = vec_and(q1mask, mask); \ 586 tc0masked = vec_and(q1mask, (vec_u8)tc0vec); \ 587 finaltc0 = vec_sub(finaltc0, q1mask); \ 588 newq1 = h264_deblock_q1(p0, q1, q2, q0, tc0masked); \ 591 h264_deblock_p0_q0(p0, p1, q0, q1, finaltc0); \ 596 static void h264_v_loop_filter_luma_altivec(
uint8_t *pix,
int stride,
int alpha,
int beta, int8_t *tc0) {
598 if ((tc0[0] & tc0[1] & tc0[2] & tc0[3]) >= 0) {
599 register vec_u8 p2 = vec_ld(-3*stride, pix);
600 register vec_u8 p1 = vec_ld(-2*stride, pix);
601 register vec_u8 p0 = vec_ld(-1*stride, pix);
602 register vec_u8 q0 = vec_ld(0, pix);
603 register vec_u8 q1 = vec_ld(stride, pix);
604 register vec_u8 q2 = vec_ld(2*stride, pix);
605 h264_loop_filter_luma_altivec(p2, p1, p0, q0, q1, q2, alpha, beta, tc0);
606 vec_st(p1, -2*stride, pix);
607 vec_st(p0, -1*stride, pix);
609 vec_st(q1, stride, pix);
613 static void h264_h_loop_filter_luma_altivec(
uint8_t *pix,
int stride,
int alpha,
int beta, int8_t *tc0) {
615 register vec_u8 line0, line1, line2, line3, line4, line5;
616 if ((tc0[0] & tc0[1] & tc0[2] & tc0[3]) < 0)
618 readAndTranspose16x6(pix-3, stride, line0, line1, line2, line3, line4, line5);
619 h264_loop_filter_luma_altivec(line0, line1, line2, line3, line4, line5, alpha, beta, tc0);
620 transpose4x16(line1, line2, line3, line4);
621 write16x4(pix-2, stride, line1, line2, line3, line4);
625 void weight_h264_W_altivec(
uint8_t *block,
int stride,
int height,
626 int log2_denom,
int weight,
int offset,
int w)
630 vec_s16 vtemp, vweight, voffset, v0, v1;
635 offset <<= log2_denom;
636 if(log2_denom) offset += 1<<(log2_denom-1);
637 temp[0] = log2_denom;
641 vtemp = (
vec_s16)vec_ld(0, temp);
642 vlog2_denom = (
vec_u16)vec_splat(vtemp, 1);
643 vweight = vec_splat(vtemp, 3);
644 voffset = vec_splat(vtemp, 5);
645 aligned = !((
unsigned long)block & 0xf);
647 for (y = 0; y <
height; y++) {
648 vblock = vec_ld(0, block);
653 if (w == 16 || aligned) {
655 v0 = vec_adds(v0, voffset);
656 v0 = vec_sra(v0, vlog2_denom);
658 if (w == 16 || !aligned) {
660 v1 = vec_adds(v1, voffset);
661 v1 = vec_sra(v1, vlog2_denom);
663 vblock = vec_packsu(v0, v1);
664 vec_st(vblock, 0, block);
672 int log2_denom,
int weightd,
int weights,
int offset,
int w)
674 int y, dst_aligned, src_aligned;
676 vec_s16 vtemp, vweights, vweightd, voffset, v0, v1, v2, v3;
681 offset = ((offset + 1) | 1) << log2_denom;
682 temp[0] = log2_denom+1;
687 vtemp = (
vec_s16)vec_ld(0, temp);
688 vlog2_denom = (
vec_u16)vec_splat(vtemp, 1);
689 vweights = vec_splat(vtemp, 3);
690 vweightd = vec_splat(vtemp, 5);
691 voffset = vec_splat(vtemp, 7);
692 dst_aligned = !((
unsigned long)dst & 0xf);
693 src_aligned = !((
unsigned long)src & 0xf);
695 for (y = 0; y <
height; y++) {
696 vdst = vec_ld(0, dst);
697 vsrc = vec_ld(0, src);
711 if (w == 16 || dst_aligned) {
715 v0 = vec_adds(v0, voffset);
716 v0 = vec_adds(v0, v2);
717 v0 = vec_sra(v0, vlog2_denom);
719 if (w == 16 || !dst_aligned) {
723 v1 = vec_adds(v1, voffset);
724 v1 = vec_adds(v1, v3);
725 v1 = vec_sra(v1, vlog2_denom);
727 vdst = vec_packsu(v0, v1);
728 vec_st(vdst, 0, dst);
735 #define H264_WEIGHT(W) \ 736 static void weight_h264_pixels ## W ## _altivec(uint8_t *block, int stride, int height, \ 737 int log2_denom, int weight, int offset) \ 739 weight_h264_W_altivec(block, stride, height, log2_denom, weight, offset, W); \ 741 static void biweight_h264_pixels ## W ## _altivec(uint8_t *dst, uint8_t *src, int stride, int height, \ 742 int log2_denom, int weightd, int weights, int offset) \ 744 biweight_h264_W_altivec(dst, src, stride, height, log2_denom, weightd, weights, offset, W); \ 752 const int chroma_format_idc)
754 #if HAVE_ALTIVEC && HAVE_BIGENDIAN 758 if (bit_depth == 8) {
760 if (chroma_format_idc <= 1)
memory handling functions
#define DECLARE_ALIGNED(n, t, v)
Macro definitions for various function/variable attributes.
h264_weight_func weight_h264_pixels_tab[4]
void(* h264_idct_add16intra)(uint8_t *dst, const int *blockoffset, int16_t *block, int stride, const uint8_t nnzc[15 *8])
void(* h264_idct_add)(uint8_t *dst, int16_t *block, int stride)
void(* h264_idct8_dc_add)(uint8_t *dst, int16_t *block, int stride)
static const uint16_t mask[17]
#define PPC_ALTIVEC(flags)
static void idct6(int pre_mant[6])
Calculate 6-point IDCT of the pre-mantissas.
void(* h264_idct_add16)(uint8_t *dst, const int *blockoffset, int16_t *block, int stride, const uint8_t nnzc[15 *8])
h264_biweight_func biweight_h264_pixels_tab[4]
Context for storing H.264 DSP functions.
H.264 / AVC / MPEG-4 part10 codec.
void(* h264_v_loop_filter_luma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0)
av_cold void ff_h264dsp_init_ppc(H264DSPContext *c, const int bit_depth, const int chroma_format_idc)
void(* h264_idct8_add)(uint8_t *dst, int16_t *block, int stride)
static const uint8_t scan8[16 *3+3]
void(* h264_idct8_add4)(uint8_t *dst, const int *blockoffset, int16_t *block, int stride, const uint8_t nnzc[15 *8])
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(const int16_t *) pi >> 8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(const int32_t *) pi >> 24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) #define SET_CONV_FUNC_GROUP(ofmt, ifmt) static void set_generic_function(AudioConvert *ac) { } void ff_audio_convert_free(AudioConvert **ac) { if(! *ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);} AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate, int apply_map) { AudioConvert *ac;int in_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) return NULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method !=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt) > 2) { ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc) { av_free(ac);return NULL;} return ac;} in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar) { ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar ? ac->channels :1;} else if(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;else ac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);return ac;} int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in) { int use_generic=1;int len=in->nb_samples;int p;if(ac->dc) { av_log(ac->avr, AV_LOG_TRACE, "%d samples - audio_convert: %s to %s (dithered)\", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> dc
Contains misc utility macros and inline functions.
void(* h264_h_loop_filter_luma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0)
void(* h264_idct_dc_add)(uint8_t *dst, int16_t *block, int stride)
void(* h264_idct_add8)(uint8_t **dst, const int *blockoffset, int16_t *block, int stride, const uint8_t nnzc[15 *8])