| /* | |
| * Copyright (C) 2003 James Klicman <james@klicman.org> | |
| * | |
| * This file is part of FFmpeg. | |
| * | |
| * FFmpeg is free software; you can redistribute it and/or | |
| * modify it under the terms of the GNU Lesser General Public | |
| * License as published by the Free Software Foundation; either | |
| * version 2.1 of the License, or (at your option) any later version. | |
| * | |
| * FFmpeg is distributed in the hope that it will be useful, | |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| * Lesser General Public License for more details. | |
| * | |
| * You should have received a copy of the GNU Lesser General Public | |
| * License along with FFmpeg; if not, write to the Free Software | |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| */ | |
| #include "config.h" | |
| #include "libavutil/attributes.h" | |
| #include "libavutil/cpu.h" | |
| #include "libavutil/ppc/cpu.h" | |
| #include "libavutil/ppc/util_altivec.h" | |
| #include "libavcodec/avcodec.h" | |
| #include "libavcodec/fdctdsp.h" | |
| #include "fdct.h" | |
| #if HAVE_ALTIVEC | |
| #define vs16(v) ((vector signed short) (v)) | |
| #define vs32(v) ((vector signed int) (v)) | |
| #define vu8(v) ((vector unsigned char) (v)) | |
| #define vu16(v) ((vector unsigned short) (v)) | |
| #define vu32(v) ((vector unsigned int) (v)) | |
| #define C1 0.98078528040323044912618224 /* cos(1 * PI / 16) */ | |
| #define C2 0.92387953251128675612818319 /* cos(2 * PI / 16) */ | |
| #define C3 0.83146961230254523707878838 /* cos(3 * PI / 16) */ | |
| #define C4 0.70710678118654752440084436 /* cos(4 * PI / 16) */ | |
| #define C5 0.55557023301960222474283081 /* cos(5 * PI / 16) */ | |
| #define C6 0.38268343236508977172845998 /* cos(6 * PI / 16) */ | |
| #define C7 0.19509032201612826784828487 /* cos(7 * PI / 16) */ | |
| #define W0 -(2 * C2) | |
| #define W1 (2 * C6) | |
| #define W2 (M_SQRT2 * C6) | |
| #define W3 (M_SQRT2 * C3) | |
| #define W4 (M_SQRT2 * (-C1 + C3 + C5 - C7)) | |
| #define W5 (M_SQRT2 * (C1 + C3 - C5 + C7)) | |
| #define W6 (M_SQRT2 * (C1 + C3 + C5 - C7)) | |
| #define W7 (M_SQRT2 * (C1 + C3 - C5 - C7)) | |
| #define W8 (M_SQRT2 * (C7 - C3)) | |
| #define W9 (M_SQRT2 * (-C1 - C3)) | |
| #define WA (M_SQRT2 * (-C3 - C5)) | |
| #define WB (M_SQRT2 * (C5 - C3)) | |
| static const vector float fdctconsts[3] = { | |
| { W0, W1, W2, W3 }, | |
| { W4, W5, W6, W7 }, | |
| { W8, W9, WA, WB } | |
| }; | |
| #define LD_W0 vec_splat(cnsts0, 0) | |
| #define LD_W1 vec_splat(cnsts0, 1) | |
| #define LD_W2 vec_splat(cnsts0, 2) | |
| #define LD_W3 vec_splat(cnsts0, 3) | |
| #define LD_W4 vec_splat(cnsts1, 0) | |
| #define LD_W5 vec_splat(cnsts1, 1) | |
| #define LD_W6 vec_splat(cnsts1, 2) | |
| #define LD_W7 vec_splat(cnsts1, 3) | |
| #define LD_W8 vec_splat(cnsts2, 0) | |
| #define LD_W9 vec_splat(cnsts2, 1) | |
| #define LD_WA vec_splat(cnsts2, 2) | |
| #define LD_WB vec_splat(cnsts2, 3) | |
| #define FDCTROW(b0, b1, b2, b3, b4, b5, b6, b7) /* {{{ */ \ | |
| x0 = vec_add(b0, b7); /* x0 = b0 + b7; */ \ | |
| x7 = vec_sub(b0, b7); /* x7 = b0 - b7; */ \ | |
| x1 = vec_add(b1, b6); /* x1 = b1 + b6; */ \ | |
| x6 = vec_sub(b1, b6); /* x6 = b1 - b6; */ \ | |
| x2 = vec_add(b2, b5); /* x2 = b2 + b5; */ \ | |
| x5 = vec_sub(b2, b5); /* x5 = b2 - b5; */ \ | |
| x3 = vec_add(b3, b4); /* x3 = b3 + b4; */ \ | |
| x4 = vec_sub(b3, b4); /* x4 = b3 - b4; */ \ | |
| \ | |
| b7 = vec_add(x0, x3); /* b7 = x0 + x3; */ \ | |
| b1 = vec_add(x1, x2); /* b1 = x1 + x2; */ \ | |
| b0 = vec_add(b7, b1); /* b0 = b7 + b1; */ \ | |
| b4 = vec_sub(b7, b1); /* b4 = b7 - b1; */ \ | |
| \ | |
| b2 = vec_sub(x0, x3); /* b2 = x0 - x3; */ \ | |
| b6 = vec_sub(x1, x2); /* b6 = x1 - x2; */ \ | |
| b5 = vec_add(b6, b2); /* b5 = b6 + b2; */ \ | |
| cnst = LD_W2; \ | |
| b5 = vec_madd(cnst, b5, mzero); /* b5 = b5 * W2; */ \ | |
| cnst = LD_W1; \ | |
| b2 = vec_madd(cnst, b2, b5); /* b2 = b5 + b2 * W1; */ \ | |
| cnst = LD_W0; \ | |
| b6 = vec_madd(cnst, b6, b5); /* b6 = b5 + b6 * W0; */ \ | |
| \ | |
| x0 = vec_add(x4, x7); /* x0 = x4 + x7; */ \ | |
| x1 = vec_add(x5, x6); /* x1 = x5 + x6; */ \ | |
| x2 = vec_add(x4, x6); /* x2 = x4 + x6; */ \ | |
| x3 = vec_add(x5, x7); /* x3 = x5 + x7; */ \ | |
| x8 = vec_add(x2, x3); /* x8 = x2 + x3; */ \ | |
| cnst = LD_W3; \ | |
| x8 = vec_madd(cnst, x8, mzero); /* x8 = x8 * W3; */ \ | |
| \ | |
| cnst = LD_W8; \ | |
| x0 = vec_madd(cnst, x0, mzero); /* x0 *= W8; */ \ | |
| cnst = LD_W9; \ | |
| x1 = vec_madd(cnst, x1, mzero); /* x1 *= W9; */ \ | |
| cnst = LD_WA; \ | |
| x2 = vec_madd(cnst, x2, x8); /* x2 = x2 * WA + x8; */ \ | |
| cnst = LD_WB; \ | |
| x3 = vec_madd(cnst, x3, x8); /* x3 = x3 * WB + x8; */ \ | |
| \ | |
| cnst = LD_W4; \ | |
| b7 = vec_madd(cnst, x4, x0); /* b7 = x4 * W4 + x0; */ \ | |
| cnst = LD_W5; \ | |
| b5 = vec_madd(cnst, x5, x1); /* b5 = x5 * W5 + x1; */ \ | |
| cnst = LD_W6; \ | |
| b3 = vec_madd(cnst, x6, x1); /* b3 = x6 * W6 + x1; */ \ | |
| cnst = LD_W7; \ | |
| b1 = vec_madd(cnst, x7, x0); /* b1 = x7 * W7 + x0; */ \ | |
| \ | |
| b7 = vec_add(b7, x2); /* b7 = b7 + x2; */ \ | |
| b5 = vec_add(b5, x3); /* b5 = b5 + x3; */ \ | |
| b3 = vec_add(b3, x2); /* b3 = b3 + x2; */ \ | |
| b1 = vec_add(b1, x3) /* b1 = b1 + x3; */ \ | |
| /* }}} */ | |
| #define FDCTCOL(b0, b1, b2, b3, b4, b5, b6, b7) /* {{{ */ \ | |
| x0 = vec_add(b0, b7); /* x0 = b0 + b7; */ \ | |
| x7 = vec_sub(b0, b7); /* x7 = b0 - b7; */ \ | |
| x1 = vec_add(b1, b6); /* x1 = b1 + b6; */ \ | |
| x6 = vec_sub(b1, b6); /* x6 = b1 - b6; */ \ | |
| x2 = vec_add(b2, b5); /* x2 = b2 + b5; */ \ | |
| x5 = vec_sub(b2, b5); /* x5 = b2 - b5; */ \ | |
| x3 = vec_add(b3, b4); /* x3 = b3 + b4; */ \ | |
| x4 = vec_sub(b3, b4); /* x4 = b3 - b4; */ \ | |
| \ | |
| b7 = vec_add(x0, x3); /* b7 = x0 + x3; */ \ | |
| b1 = vec_add(x1, x2); /* b1 = x1 + x2; */ \ | |
| b0 = vec_add(b7, b1); /* b0 = b7 + b1; */ \ | |
| b4 = vec_sub(b7, b1); /* b4 = b7 - b1; */ \ | |
| \ | |
| b2 = vec_sub(x0, x3); /* b2 = x0 - x3; */ \ | |
| b6 = vec_sub(x1, x2); /* b6 = x1 - x2; */ \ | |
| b5 = vec_add(b6, b2); /* b5 = b6 + b2; */ \ | |
| cnst = LD_W2; \ | |
| b5 = vec_madd(cnst, b5, mzero); /* b5 = b5 * W2; */ \ | |
| cnst = LD_W1; \ | |
| b2 = vec_madd(cnst, b2, b5); /* b2 = b5 + b2 * W1; */ \ | |
| cnst = LD_W0; \ | |
| b6 = vec_madd(cnst, b6, b5); /* b6 = b5 + b6 * W0; */ \ | |
| \ | |
| x0 = vec_add(x4, x7); /* x0 = x4 + x7; */ \ | |
| x1 = vec_add(x5, x6); /* x1 = x5 + x6; */ \ | |
| x2 = vec_add(x4, x6); /* x2 = x4 + x6; */ \ | |
| x3 = vec_add(x5, x7); /* x3 = x5 + x7; */ \ | |
| x8 = vec_add(x2, x3); /* x8 = x2 + x3; */ \ | |
| cnst = LD_W3; \ | |
| x8 = vec_madd(cnst, x8, mzero); /* x8 = x8 * W3; */ \ | |
| \ | |
| cnst = LD_W8; \ | |
| x0 = vec_madd(cnst, x0, mzero); /* x0 *= W8; */ \ | |
| cnst = LD_W9; \ | |
| x1 = vec_madd(cnst, x1, mzero); /* x1 *= W9; */ \ | |
| cnst = LD_WA; \ | |
| x2 = vec_madd(cnst, x2, x8); /* x2 = x2 * WA + x8; */ \ | |
| cnst = LD_WB; \ | |
| x3 = vec_madd(cnst, x3, x8); /* x3 = x3 * WB + x8; */ \ | |
| \ | |
| cnst = LD_W4; \ | |
| b7 = vec_madd(cnst, x4, x0); /* b7 = x4 * W4 + x0; */ \ | |
| cnst = LD_W5; \ | |
| b5 = vec_madd(cnst, x5, x1); /* b5 = x5 * W5 + x1; */ \ | |
| cnst = LD_W6; \ | |
| b3 = vec_madd(cnst, x6, x1); /* b3 = x6 * W6 + x1; */ \ | |
| cnst = LD_W7; \ | |
| b1 = vec_madd(cnst, x7, x0); /* b1 = x7 * W7 + x0; */ \ | |
| \ | |
| b7 = vec_add(b7, x2); /* b7 += x2; */ \ | |
| b5 = vec_add(b5, x3); /* b5 += x3; */ \ | |
| b3 = vec_add(b3, x2); /* b3 += x2; */ \ | |
| b1 = vec_add(b1, x3) /* b1 += x3; */ \ | |
| /* }}} */ | |
| /* two dimensional discrete cosine transform */ | |
| void ff_fdct_altivec(int16_t *block) | |
| { | |
| vector signed short *bp; | |
| const vector float *cp = fdctconsts; | |
| vector float b00, b10, b20, b30, b40, b50, b60, b70; | |
| vector float b01, b11, b21, b31, b41, b51, b61, b71; | |
| vector float mzero, cnst, cnsts0, cnsts1, cnsts2; | |
| vector float x0, x1, x2, x3, x4, x5, x6, x7, x8; | |
| /* setup constants {{{ */ | |
| /* mzero = -0.0 */ | |
| mzero = ((vector float) vec_splat_u32(-1)); | |
| mzero = ((vector float) vec_sl(vu32(mzero), vu32(mzero))); | |
| cnsts0 = vec_ld(0, cp); | |
| cp++; | |
| cnsts1 = vec_ld(0, cp); | |
| cp++; | |
| cnsts2 = vec_ld(0, cp); | |
| /* }}} */ | |
| /* 8x8 matrix transpose (vector short[8]) {{{ */ | |
| #define MERGE_S16(hl, a, b) vec_merge ## hl(vs16(a), vs16(b)) | |
| bp = (vector signed short *) block; | |
| b00 = ((vector float) vec_ld(0, bp)); | |
| b40 = ((vector float) vec_ld(16 * 4, bp)); | |
| b01 = ((vector float) MERGE_S16(h, b00, b40)); | |
| b11 = ((vector float) MERGE_S16(l, b00, b40)); | |
| bp++; | |
| b10 = ((vector float) vec_ld(0, bp)); | |
| b50 = ((vector float) vec_ld(16 * 4, bp)); | |
| b21 = ((vector float) MERGE_S16(h, b10, b50)); | |
| b31 = ((vector float) MERGE_S16(l, b10, b50)); | |
| bp++; | |
| b20 = ((vector float) vec_ld(0, bp)); | |
| b60 = ((vector float) vec_ld(16 * 4, bp)); | |
| b41 = ((vector float) MERGE_S16(h, b20, b60)); | |
| b51 = ((vector float) MERGE_S16(l, b20, b60)); | |
| bp++; | |
| b30 = ((vector float) vec_ld(0, bp)); | |
| b70 = ((vector float) vec_ld(16 * 4, bp)); | |
| b61 = ((vector float) MERGE_S16(h, b30, b70)); | |
| b71 = ((vector float) MERGE_S16(l, b30, b70)); | |
| x0 = ((vector float) MERGE_S16(h, b01, b41)); | |
| x1 = ((vector float) MERGE_S16(l, b01, b41)); | |
| x2 = ((vector float) MERGE_S16(h, b11, b51)); | |
| x3 = ((vector float) MERGE_S16(l, b11, b51)); | |
| x4 = ((vector float) MERGE_S16(h, b21, b61)); | |
| x5 = ((vector float) MERGE_S16(l, b21, b61)); | |
| x6 = ((vector float) MERGE_S16(h, b31, b71)); | |
| x7 = ((vector float) MERGE_S16(l, b31, b71)); | |
| b00 = ((vector float) MERGE_S16(h, x0, x4)); | |
| b10 = ((vector float) MERGE_S16(l, x0, x4)); | |
| b20 = ((vector float) MERGE_S16(h, x1, x5)); | |
| b30 = ((vector float) MERGE_S16(l, x1, x5)); | |
| b40 = ((vector float) MERGE_S16(h, x2, x6)); | |
| b50 = ((vector float) MERGE_S16(l, x2, x6)); | |
| b60 = ((vector float) MERGE_S16(h, x3, x7)); | |
| b70 = ((vector float) MERGE_S16(l, x3, x7)); | |
| #undef MERGE_S16 | |
| /* }}} */ | |
| /* Some of the initial calculations can be done as vector short | |
| * before conversion to vector float. The following code section | |
| * takes advantage of this. */ | |
| /* fdct rows {{{ */ | |
| x0 = ((vector float) vec_add(vs16(b00), vs16(b70))); | |
| x7 = ((vector float) vec_sub(vs16(b00), vs16(b70))); | |
| x1 = ((vector float) vec_add(vs16(b10), vs16(b60))); | |
| x6 = ((vector float) vec_sub(vs16(b10), vs16(b60))); | |
| x2 = ((vector float) vec_add(vs16(b20), vs16(b50))); | |
| x5 = ((vector float) vec_sub(vs16(b20), vs16(b50))); | |
| x3 = ((vector float) vec_add(vs16(b30), vs16(b40))); | |
| x4 = ((vector float) vec_sub(vs16(b30), vs16(b40))); | |
| b70 = ((vector float) vec_add(vs16(x0), vs16(x3))); | |
| b10 = ((vector float) vec_add(vs16(x1), vs16(x2))); | |
| b00 = ((vector float) vec_add(vs16(b70), vs16(b10))); | |
| b40 = ((vector float) vec_sub(vs16(b70), vs16(b10))); | |
| #define CTF0(n) \ | |
| b ## n ## 1 = ((vector float) vec_unpackl(vs16(b ## n ## 0))); \ | |
| b ## n ## 0 = ((vector float) vec_unpackh(vs16(b ## n ## 0))); \ | |
| b ## n ## 1 = vec_ctf(vs32(b ## n ## 1), 0); \ | |
| b ## n ## 0 = vec_ctf(vs32(b ## n ## 0), 0) | |
| CTF0(0); | |
| CTF0(4); | |
| b20 = ((vector float) vec_sub(vs16(x0), vs16(x3))); | |
| b60 = ((vector float) vec_sub(vs16(x1), vs16(x2))); | |
| CTF0(2); | |
| CTF0(6); | |
| #undef CTF0 | |
| x0 = vec_add(b60, b20); | |
| x1 = vec_add(b61, b21); | |
| cnst = LD_W2; | |
| x0 = vec_madd(cnst, x0, mzero); | |
| x1 = vec_madd(cnst, x1, mzero); | |
| cnst = LD_W1; | |
| b20 = vec_madd(cnst, b20, x0); | |
| b21 = vec_madd(cnst, b21, x1); | |
| cnst = LD_W0; | |
| b60 = vec_madd(cnst, b60, x0); | |
| b61 = vec_madd(cnst, b61, x1); | |
| #define CTFX(x, b) \ | |
| b ## 0 = ((vector float) vec_unpackh(vs16(x))); \ | |
| b ## 1 = ((vector float) vec_unpackl(vs16(x))); \ | |
| b ## 0 = vec_ctf(vs32(b ## 0), 0); \ | |
| b ## 1 = vec_ctf(vs32(b ## 1), 0) | |
| CTFX(x4, b7); | |
| CTFX(x5, b5); | |
| CTFX(x6, b3); | |
| CTFX(x7, b1); | |
| #undef CTFX | |
| x0 = vec_add(b70, b10); | |
| x1 = vec_add(b50, b30); | |
| x2 = vec_add(b70, b30); | |
| x3 = vec_add(b50, b10); | |
| x8 = vec_add(x2, x3); | |
| cnst = LD_W3; | |
| x8 = vec_madd(cnst, x8, mzero); | |
| cnst = LD_W8; | |
| x0 = vec_madd(cnst, x0, mzero); | |
| cnst = LD_W9; | |
| x1 = vec_madd(cnst, x1, mzero); | |
| cnst = LD_WA; | |
| x2 = vec_madd(cnst, x2, x8); | |
| cnst = LD_WB; | |
| x3 = vec_madd(cnst, x3, x8); | |
| cnst = LD_W4; | |
| b70 = vec_madd(cnst, b70, x0); | |
| cnst = LD_W5; | |
| b50 = vec_madd(cnst, b50, x1); | |
| cnst = LD_W6; | |
| b30 = vec_madd(cnst, b30, x1); | |
| cnst = LD_W7; | |
| b10 = vec_madd(cnst, b10, x0); | |
| b70 = vec_add(b70, x2); | |
| b50 = vec_add(b50, x3); | |
| b30 = vec_add(b30, x2); | |
| b10 = vec_add(b10, x3); | |
| x0 = vec_add(b71, b11); | |
| x1 = vec_add(b51, b31); | |
| x2 = vec_add(b71, b31); | |
| x3 = vec_add(b51, b11); | |
| x8 = vec_add(x2, x3); | |
| cnst = LD_W3; | |
| x8 = vec_madd(cnst, x8, mzero); | |
| cnst = LD_W8; | |
| x0 = vec_madd(cnst, x0, mzero); | |
| cnst = LD_W9; | |
| x1 = vec_madd(cnst, x1, mzero); | |
| cnst = LD_WA; | |
| x2 = vec_madd(cnst, x2, x8); | |
| cnst = LD_WB; | |
| x3 = vec_madd(cnst, x3, x8); | |
| cnst = LD_W4; | |
| b71 = vec_madd(cnst, b71, x0); | |
| cnst = LD_W5; | |
| b51 = vec_madd(cnst, b51, x1); | |
| cnst = LD_W6; | |
| b31 = vec_madd(cnst, b31, x1); | |
| cnst = LD_W7; | |
| b11 = vec_madd(cnst, b11, x0); | |
| b71 = vec_add(b71, x2); | |
| b51 = vec_add(b51, x3); | |
| b31 = vec_add(b31, x2); | |
| b11 = vec_add(b11, x3); | |
| /* }}} */ | |
| /* 8x8 matrix transpose (vector float[8][2]) {{{ */ | |
| x0 = vec_mergel(b00, b20); | |
| x1 = vec_mergeh(b00, b20); | |
| x2 = vec_mergel(b10, b30); | |
| x3 = vec_mergeh(b10, b30); | |
| b00 = vec_mergeh(x1, x3); | |
| b10 = vec_mergel(x1, x3); | |
| b20 = vec_mergeh(x0, x2); | |
| b30 = vec_mergel(x0, x2); | |
| x4 = vec_mergel(b41, b61); | |
| x5 = vec_mergeh(b41, b61); | |
| x6 = vec_mergel(b51, b71); | |
| x7 = vec_mergeh(b51, b71); | |
| b41 = vec_mergeh(x5, x7); | |
| b51 = vec_mergel(x5, x7); | |
| b61 = vec_mergeh(x4, x6); | |
| b71 = vec_mergel(x4, x6); | |
| x0 = vec_mergel(b01, b21); | |
| x1 = vec_mergeh(b01, b21); | |
| x2 = vec_mergel(b11, b31); | |
| x3 = vec_mergeh(b11, b31); | |
| x4 = vec_mergel(b40, b60); | |
| x5 = vec_mergeh(b40, b60); | |
| x6 = vec_mergel(b50, b70); | |
| x7 = vec_mergeh(b50, b70); | |
| b40 = vec_mergeh(x1, x3); | |
| b50 = vec_mergel(x1, x3); | |
| b60 = vec_mergeh(x0, x2); | |
| b70 = vec_mergel(x0, x2); | |
| b01 = vec_mergeh(x5, x7); | |
| b11 = vec_mergel(x5, x7); | |
| b21 = vec_mergeh(x4, x6); | |
| b31 = vec_mergel(x4, x6); | |
| /* }}} */ | |
| FDCTCOL(b00, b10, b20, b30, b40, b50, b60, b70); | |
| FDCTCOL(b01, b11, b21, b31, b41, b51, b61, b71); | |
| /* round, convert back to short {{{ */ | |
| #define CTS(n) \ | |
| b ## n ## 0 = vec_round(b ## n ## 0); \ | |
| b ## n ## 1 = vec_round(b ## n ## 1); \ | |
| b ## n ## 0 = ((vector float) vec_cts(b ## n ## 0, 0)); \ | |
| b ## n ## 1 = ((vector float) vec_cts(b ## n ## 1, 0)); \ | |
| b ## n ## 0 = ((vector float) vec_pack(vs32(b ## n ## 0), \ | |
| vs32(b ## n ## 1))); \ | |
| vec_st(vs16(b ## n ## 0), 0, bp) | |
| bp = (vector signed short *) block; | |
| CTS(0); | |
| bp++; | |
| CTS(1); | |
| bp++; | |
| CTS(2); | |
| bp++; | |
| CTS(3); | |
| bp++; | |
| CTS(4); | |
| bp++; | |
| CTS(5); | |
| bp++; | |
| CTS(6); | |
| bp++; | |
| CTS(7); | |
| #undef CTS | |
| /* }}} */ | |
| } | |
| #endif /* HAVE_ALTIVEC */ | |
| av_cold void ff_fdctdsp_init_ppc(FDCTDSPContext *c, AVCodecContext *avctx, | |
| unsigned high_bit_depth) | |
| { | |
| #if HAVE_ALTIVEC | |
| if (!PPC_ALTIVEC(av_get_cpu_flags())) | |
| return; | |
| if (!high_bit_depth) { | |
| if (avctx->dct_algo == FF_DCT_AUTO || | |
| avctx->dct_algo == FF_DCT_ALTIVEC) { | |
| c->fdct = ff_fdct_altivec; | |
| } | |
| } | |
| #endif /* HAVE_ALTIVEC */ | |
| } |