523 lines
16 KiB
C
523 lines
16 KiB
C
/*
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* The simplest mpeg encoder (well, it was the simplest!)
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* Copyright (c) 2000,2001 Fabrice Bellard.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Optimized for ia32 cpus by Nick Kurshev <nickols_k@mail.ru>
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* h263, mpeg1, mpeg2 dequantizer & draw_edges by Michael Niedermayer <michaelni@gmx.at>
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*/
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#include "../dsputil.h"
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#include "../mpegvideo.h"
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#include "../avcodec.h"
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extern uint8_t zigzag_direct_noperm[64];
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extern uint16_t inv_zigzag_direct16[64];
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static const unsigned long long int mm_wabs __attribute__ ((aligned(8))) = 0xffffffffffffffffULL;
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static const unsigned long long int mm_wone __attribute__ ((aligned(8))) = 0x0001000100010001ULL;
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static void dct_unquantize_h263_mmx(MpegEncContext *s,
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DCTELEM *block, int n, int qscale)
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{
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int level, qmul, qadd, nCoeffs;
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qmul = qscale << 1;
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qadd = (qscale - 1) | 1;
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assert(s->block_last_index[n]>=0);
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if (s->mb_intra) {
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if (!s->h263_aic) {
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if (n < 4)
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level = block[0] * s->y_dc_scale;
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else
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level = block[0] * s->c_dc_scale;
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}else{
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qadd = 0;
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level= block[0];
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}
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nCoeffs=63;
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} else {
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nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
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level = 0;/* keep gcc quiet */
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}
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//printf("%d %d ", qmul, qadd);
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asm volatile(
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"movd %1, %%mm6 \n\t" //qmul
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"packssdw %%mm6, %%mm6 \n\t"
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"packssdw %%mm6, %%mm6 \n\t"
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"movd %2, %%mm5 \n\t" //qadd
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"pxor %%mm7, %%mm7 \n\t"
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"packssdw %%mm5, %%mm5 \n\t"
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"packssdw %%mm5, %%mm5 \n\t"
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"psubw %%mm5, %%mm7 \n\t"
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"pxor %%mm4, %%mm4 \n\t"
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".balign 16\n\t"
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"1: \n\t"
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"movq (%0, %3), %%mm0 \n\t"
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"movq 8(%0, %3), %%mm1 \n\t"
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"pmullw %%mm6, %%mm0 \n\t"
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"pmullw %%mm6, %%mm1 \n\t"
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"movq (%0, %3), %%mm2 \n\t"
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"movq 8(%0, %3), %%mm3 \n\t"
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"pcmpgtw %%mm4, %%mm2 \n\t" // block[i] < 0 ? -1 : 0
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"pcmpgtw %%mm4, %%mm3 \n\t" // block[i] < 0 ? -1 : 0
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"pxor %%mm2, %%mm0 \n\t"
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"pxor %%mm3, %%mm1 \n\t"
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"paddw %%mm7, %%mm0 \n\t"
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"paddw %%mm7, %%mm1 \n\t"
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"pxor %%mm0, %%mm2 \n\t"
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"pxor %%mm1, %%mm3 \n\t"
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"pcmpeqw %%mm7, %%mm0 \n\t" // block[i] == 0 ? -1 : 0
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"pcmpeqw %%mm7, %%mm1 \n\t" // block[i] == 0 ? -1 : 0
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"pandn %%mm2, %%mm0 \n\t"
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"pandn %%mm3, %%mm1 \n\t"
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"movq %%mm0, (%0, %3) \n\t"
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"movq %%mm1, 8(%0, %3) \n\t"
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"addl $16, %3 \n\t"
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"jng 1b \n\t"
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::"r" (block+nCoeffs), "g"(qmul), "g" (qadd), "r" (2*(-nCoeffs))
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: "memory"
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);
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if(s->mb_intra)
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block[0]= level;
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}
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/*
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NK:
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Note: looking at PARANOID:
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"enable all paranoid tests for rounding, overflows, etc..."
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#ifdef PARANOID
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if (level < -2048 || level > 2047)
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fprintf(stderr, "unquant error %d %d\n", i, level);
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#endif
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We can suppose that result of two multiplications can't be greate of 0xFFFF
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i.e. is 16-bit, so we use here only PMULLW instruction and can avoid
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a complex multiplication.
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=====================================================
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Full formula for multiplication of 2 integer numbers
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which are represent as high:low words:
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input: value1 = high1:low1
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value2 = high2:low2
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output: value3 = value1*value2
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value3=high3:low3 (on overflow: modulus 2^32 wrap-around)
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this mean that for 0x123456 * 0x123456 correct result is 0x766cb0ce4
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but this algorithm will compute only 0x66cb0ce4
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this limited by 16-bit size of operands
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---------------------------------
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tlow1 = high1*low2
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tlow2 = high2*low1
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tlow1 = tlow1 + tlow2
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high3:low3 = low1*low2
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high3 += tlow1
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*/
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static void dct_unquantize_mpeg1_mmx(MpegEncContext *s,
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DCTELEM *block, int n, int qscale)
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{
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int nCoeffs;
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const uint16_t *quant_matrix;
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assert(s->block_last_index[n]>=0);
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nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ]+1;
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if (s->mb_intra) {
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int block0;
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if (n < 4)
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block0 = block[0] * s->y_dc_scale;
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else
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block0 = block[0] * s->c_dc_scale;
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/* XXX: only mpeg1 */
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quant_matrix = s->intra_matrix;
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asm volatile(
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"pcmpeqw %%mm7, %%mm7 \n\t"
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"psrlw $15, %%mm7 \n\t"
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"movd %2, %%mm6 \n\t"
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"packssdw %%mm6, %%mm6 \n\t"
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"packssdw %%mm6, %%mm6 \n\t"
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"movl %3, %%eax \n\t"
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".balign 16\n\t"
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"1: \n\t"
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"movq (%0, %%eax), %%mm0 \n\t"
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"movq 8(%0, %%eax), %%mm1 \n\t"
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"movq (%1, %%eax), %%mm4 \n\t"
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"movq 8(%1, %%eax), %%mm5 \n\t"
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"pmullw %%mm6, %%mm4 \n\t" // q=qscale*quant_matrix[i]
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"pmullw %%mm6, %%mm5 \n\t" // q=qscale*quant_matrix[i]
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"pxor %%mm2, %%mm2 \n\t"
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"pxor %%mm3, %%mm3 \n\t"
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"pcmpgtw %%mm0, %%mm2 \n\t" // block[i] < 0 ? -1 : 0
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"pcmpgtw %%mm1, %%mm3 \n\t" // block[i] < 0 ? -1 : 0
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"pxor %%mm2, %%mm0 \n\t"
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"pxor %%mm3, %%mm1 \n\t"
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"psubw %%mm2, %%mm0 \n\t" // abs(block[i])
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"psubw %%mm3, %%mm1 \n\t" // abs(block[i])
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"pmullw %%mm4, %%mm0 \n\t" // abs(block[i])*q
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"pmullw %%mm5, %%mm1 \n\t" // abs(block[i])*q
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"pxor %%mm4, %%mm4 \n\t"
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"pxor %%mm5, %%mm5 \n\t" // FIXME slow
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"pcmpeqw (%0, %%eax), %%mm4 \n\t" // block[i] == 0 ? -1 : 0
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"pcmpeqw 8(%0, %%eax), %%mm5 \n\t" // block[i] == 0 ? -1 : 0
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"psraw $3, %%mm0 \n\t"
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"psraw $3, %%mm1 \n\t"
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"psubw %%mm7, %%mm0 \n\t"
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"psubw %%mm7, %%mm1 \n\t"
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"por %%mm7, %%mm0 \n\t"
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"por %%mm7, %%mm1 \n\t"
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"pxor %%mm2, %%mm0 \n\t"
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"pxor %%mm3, %%mm1 \n\t"
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"psubw %%mm2, %%mm0 \n\t"
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"psubw %%mm3, %%mm1 \n\t"
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"pandn %%mm0, %%mm4 \n\t"
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"pandn %%mm1, %%mm5 \n\t"
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"movq %%mm4, (%0, %%eax) \n\t"
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"movq %%mm5, 8(%0, %%eax) \n\t"
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"addl $16, %%eax \n\t"
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"js 1b \n\t"
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::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "g" (qscale), "g" (-2*nCoeffs)
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: "%eax", "memory"
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);
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block[0]= block0;
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} else {
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quant_matrix = s->inter_matrix;
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asm volatile(
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"pcmpeqw %%mm7, %%mm7 \n\t"
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"psrlw $15, %%mm7 \n\t"
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"movd %2, %%mm6 \n\t"
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"packssdw %%mm6, %%mm6 \n\t"
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"packssdw %%mm6, %%mm6 \n\t"
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"movl %3, %%eax \n\t"
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".balign 16\n\t"
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"1: \n\t"
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"movq (%0, %%eax), %%mm0 \n\t"
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"movq 8(%0, %%eax), %%mm1 \n\t"
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"movq (%1, %%eax), %%mm4 \n\t"
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"movq 8(%1, %%eax), %%mm5 \n\t"
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"pmullw %%mm6, %%mm4 \n\t" // q=qscale*quant_matrix[i]
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"pmullw %%mm6, %%mm5 \n\t" // q=qscale*quant_matrix[i]
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"pxor %%mm2, %%mm2 \n\t"
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"pxor %%mm3, %%mm3 \n\t"
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"pcmpgtw %%mm0, %%mm2 \n\t" // block[i] < 0 ? -1 : 0
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"pcmpgtw %%mm1, %%mm3 \n\t" // block[i] < 0 ? -1 : 0
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"pxor %%mm2, %%mm0 \n\t"
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"pxor %%mm3, %%mm1 \n\t"
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"psubw %%mm2, %%mm0 \n\t" // abs(block[i])
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"psubw %%mm3, %%mm1 \n\t" // abs(block[i])
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"paddw %%mm0, %%mm0 \n\t" // abs(block[i])*2
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"paddw %%mm1, %%mm1 \n\t" // abs(block[i])*2
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"paddw %%mm7, %%mm0 \n\t" // abs(block[i])*2 + 1
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"paddw %%mm7, %%mm1 \n\t" // abs(block[i])*2 + 1
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"pmullw %%mm4, %%mm0 \n\t" // (abs(block[i])*2 + 1)*q
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"pmullw %%mm5, %%mm1 \n\t" // (abs(block[i])*2 + 1)*q
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"pxor %%mm4, %%mm4 \n\t"
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"pxor %%mm5, %%mm5 \n\t" // FIXME slow
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"pcmpeqw (%0, %%eax), %%mm4 \n\t" // block[i] == 0 ? -1 : 0
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"pcmpeqw 8(%0, %%eax), %%mm5 \n\t" // block[i] == 0 ? -1 : 0
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"psraw $4, %%mm0 \n\t"
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"psraw $4, %%mm1 \n\t"
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"psubw %%mm7, %%mm0 \n\t"
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"psubw %%mm7, %%mm1 \n\t"
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"por %%mm7, %%mm0 \n\t"
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"por %%mm7, %%mm1 \n\t"
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"pxor %%mm2, %%mm0 \n\t"
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"pxor %%mm3, %%mm1 \n\t"
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"psubw %%mm2, %%mm0 \n\t"
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"psubw %%mm3, %%mm1 \n\t"
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"pandn %%mm0, %%mm4 \n\t"
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"pandn %%mm1, %%mm5 \n\t"
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"movq %%mm4, (%0, %%eax) \n\t"
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"movq %%mm5, 8(%0, %%eax) \n\t"
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"addl $16, %%eax \n\t"
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"js 1b \n\t"
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::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "g" (qscale), "g" (-2*nCoeffs)
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: "%eax", "memory"
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);
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}
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}
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static void dct_unquantize_mpeg2_mmx(MpegEncContext *s,
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DCTELEM *block, int n, int qscale)
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{
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int nCoeffs;
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const uint16_t *quant_matrix;
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assert(s->block_last_index[n]>=0);
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if(s->alternate_scan) nCoeffs= 63; //FIXME
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else nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ];
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if (s->mb_intra) {
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int block0;
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if (n < 4)
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block0 = block[0] * s->y_dc_scale;
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else
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block0 = block[0] * s->c_dc_scale;
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quant_matrix = s->intra_matrix;
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asm volatile(
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"pcmpeqw %%mm7, %%mm7 \n\t"
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"psrlw $15, %%mm7 \n\t"
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"movd %2, %%mm6 \n\t"
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"packssdw %%mm6, %%mm6 \n\t"
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"packssdw %%mm6, %%mm6 \n\t"
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"movl %3, %%eax \n\t"
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".balign 16\n\t"
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"1: \n\t"
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"movq (%0, %%eax), %%mm0 \n\t"
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"movq 8(%0, %%eax), %%mm1 \n\t"
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"movq (%1, %%eax), %%mm4 \n\t"
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"movq 8(%1, %%eax), %%mm5 \n\t"
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"pmullw %%mm6, %%mm4 \n\t" // q=qscale*quant_matrix[i]
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"pmullw %%mm6, %%mm5 \n\t" // q=qscale*quant_matrix[i]
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"pxor %%mm2, %%mm2 \n\t"
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"pxor %%mm3, %%mm3 \n\t"
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"pcmpgtw %%mm0, %%mm2 \n\t" // block[i] < 0 ? -1 : 0
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"pcmpgtw %%mm1, %%mm3 \n\t" // block[i] < 0 ? -1 : 0
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"pxor %%mm2, %%mm0 \n\t"
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"pxor %%mm3, %%mm1 \n\t"
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"psubw %%mm2, %%mm0 \n\t" // abs(block[i])
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"psubw %%mm3, %%mm1 \n\t" // abs(block[i])
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"pmullw %%mm4, %%mm0 \n\t" // abs(block[i])*q
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"pmullw %%mm5, %%mm1 \n\t" // abs(block[i])*q
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"pxor %%mm4, %%mm4 \n\t"
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"pxor %%mm5, %%mm5 \n\t" // FIXME slow
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"pcmpeqw (%0, %%eax), %%mm4 \n\t" // block[i] == 0 ? -1 : 0
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"pcmpeqw 8(%0, %%eax), %%mm5 \n\t" // block[i] == 0 ? -1 : 0
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"psraw $3, %%mm0 \n\t"
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"psraw $3, %%mm1 \n\t"
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"pxor %%mm2, %%mm0 \n\t"
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"pxor %%mm3, %%mm1 \n\t"
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"psubw %%mm2, %%mm0 \n\t"
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"psubw %%mm3, %%mm1 \n\t"
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"pandn %%mm0, %%mm4 \n\t"
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"pandn %%mm1, %%mm5 \n\t"
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"movq %%mm4, (%0, %%eax) \n\t"
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"movq %%mm5, 8(%0, %%eax) \n\t"
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"addl $16, %%eax \n\t"
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"jng 1b \n\t"
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::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "g" (qscale), "g" (-2*nCoeffs)
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: "%eax", "memory"
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);
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block[0]= block0;
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//Note, we dont do mismatch control for intra as errors cannot accumulate
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} else {
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quant_matrix = s->inter_matrix;
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asm volatile(
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"pcmpeqw %%mm7, %%mm7 \n\t"
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"psrlq $48, %%mm7 \n\t"
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"movd %2, %%mm6 \n\t"
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"packssdw %%mm6, %%mm6 \n\t"
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"packssdw %%mm6, %%mm6 \n\t"
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"movl %3, %%eax \n\t"
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".balign 16\n\t"
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"1: \n\t"
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"movq (%0, %%eax), %%mm0 \n\t"
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"movq 8(%0, %%eax), %%mm1 \n\t"
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"movq (%1, %%eax), %%mm4 \n\t"
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"movq 8(%1, %%eax), %%mm5 \n\t"
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"pmullw %%mm6, %%mm4 \n\t" // q=qscale*quant_matrix[i]
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"pmullw %%mm6, %%mm5 \n\t" // q=qscale*quant_matrix[i]
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"pxor %%mm2, %%mm2 \n\t"
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"pxor %%mm3, %%mm3 \n\t"
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"pcmpgtw %%mm0, %%mm2 \n\t" // block[i] < 0 ? -1 : 0
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"pcmpgtw %%mm1, %%mm3 \n\t" // block[i] < 0 ? -1 : 0
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"pxor %%mm2, %%mm0 \n\t"
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"pxor %%mm3, %%mm1 \n\t"
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"psubw %%mm2, %%mm0 \n\t" // abs(block[i])
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"psubw %%mm3, %%mm1 \n\t" // abs(block[i])
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"paddw %%mm0, %%mm0 \n\t" // abs(block[i])*2
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"paddw %%mm1, %%mm1 \n\t" // abs(block[i])*2
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"pmullw %%mm4, %%mm0 \n\t" // abs(block[i])*2*q
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"pmullw %%mm5, %%mm1 \n\t" // abs(block[i])*2*q
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"paddw %%mm4, %%mm0 \n\t" // (abs(block[i])*2 + 1)*q
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"paddw %%mm5, %%mm1 \n\t" // (abs(block[i])*2 + 1)*q
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"pxor %%mm4, %%mm4 \n\t"
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"pxor %%mm5, %%mm5 \n\t" // FIXME slow
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"pcmpeqw (%0, %%eax), %%mm4 \n\t" // block[i] == 0 ? -1 : 0
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"pcmpeqw 8(%0, %%eax), %%mm5 \n\t" // block[i] == 0 ? -1 : 0
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"psrlw $4, %%mm0 \n\t"
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"psrlw $4, %%mm1 \n\t"
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"pxor %%mm2, %%mm0 \n\t"
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"pxor %%mm3, %%mm1 \n\t"
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"psubw %%mm2, %%mm0 \n\t"
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"psubw %%mm3, %%mm1 \n\t"
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"pandn %%mm0, %%mm4 \n\t"
|
|
"pandn %%mm1, %%mm5 \n\t"
|
|
"pxor %%mm4, %%mm7 \n\t"
|
|
"pxor %%mm5, %%mm7 \n\t"
|
|
"movq %%mm4, (%0, %%eax) \n\t"
|
|
"movq %%mm5, 8(%0, %%eax) \n\t"
|
|
|
|
"addl $16, %%eax \n\t"
|
|
"jng 1b \n\t"
|
|
"movd 124(%0, %3), %%mm0 \n\t"
|
|
"movq %%mm7, %%mm6 \n\t"
|
|
"psrlq $32, %%mm7 \n\t"
|
|
"pxor %%mm6, %%mm7 \n\t"
|
|
"movq %%mm7, %%mm6 \n\t"
|
|
"psrlq $16, %%mm7 \n\t"
|
|
"pxor %%mm6, %%mm7 \n\t"
|
|
"pslld $31, %%mm7 \n\t"
|
|
"psrlq $15, %%mm7 \n\t"
|
|
"pxor %%mm7, %%mm0 \n\t"
|
|
"movd %%mm0, 124(%0, %3) \n\t"
|
|
|
|
::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "g" (qscale), "r" (-2*nCoeffs)
|
|
: "%eax", "memory"
|
|
);
|
|
}
|
|
}
|
|
|
|
/* draw the edges of width 'w' of an image of size width, height
|
|
this mmx version can only handle w==8 || w==16 */
|
|
static void draw_edges_mmx(uint8_t *buf, int wrap, int width, int height, int w)
|
|
{
|
|
uint8_t *ptr, *last_line;
|
|
int i;
|
|
|
|
last_line = buf + (height - 1) * wrap;
|
|
/* left and right */
|
|
ptr = buf;
|
|
if(w==8)
|
|
{
|
|
asm volatile(
|
|
"1: \n\t"
|
|
"movd (%0), %%mm0 \n\t"
|
|
"punpcklbw %%mm0, %%mm0 \n\t"
|
|
"punpcklwd %%mm0, %%mm0 \n\t"
|
|
"punpckldq %%mm0, %%mm0 \n\t"
|
|
"movq %%mm0, -8(%0) \n\t"
|
|
"movq -8(%0, %2), %%mm1 \n\t"
|
|
"punpckhbw %%mm1, %%mm1 \n\t"
|
|
"punpckhwd %%mm1, %%mm1 \n\t"
|
|
"punpckhdq %%mm1, %%mm1 \n\t"
|
|
"movq %%mm1, (%0, %2) \n\t"
|
|
"addl %1, %0 \n\t"
|
|
"cmpl %3, %0 \n\t"
|
|
" jb 1b \n\t"
|
|
: "+r" (ptr)
|
|
: "r" (wrap), "r" (width), "r" (ptr + wrap*height)
|
|
);
|
|
}
|
|
else
|
|
{
|
|
asm volatile(
|
|
"1: \n\t"
|
|
"movd (%0), %%mm0 \n\t"
|
|
"punpcklbw %%mm0, %%mm0 \n\t"
|
|
"punpcklwd %%mm0, %%mm0 \n\t"
|
|
"punpckldq %%mm0, %%mm0 \n\t"
|
|
"movq %%mm0, -8(%0) \n\t"
|
|
"movq %%mm0, -16(%0) \n\t"
|
|
"movq -8(%0, %2), %%mm1 \n\t"
|
|
"punpckhbw %%mm1, %%mm1 \n\t"
|
|
"punpckhwd %%mm1, %%mm1 \n\t"
|
|
"punpckhdq %%mm1, %%mm1 \n\t"
|
|
"movq %%mm1, (%0, %2) \n\t"
|
|
"movq %%mm1, 8(%0, %2) \n\t"
|
|
"addl %1, %0 \n\t"
|
|
"cmpl %3, %0 \n\t"
|
|
" jb 1b \n\t"
|
|
: "+r" (ptr)
|
|
: "r" (wrap), "r" (width), "r" (ptr + wrap*height)
|
|
);
|
|
}
|
|
|
|
for(i=0;i<w;i+=4) {
|
|
/* top and bottom (and hopefully also the corners) */
|
|
ptr= buf - (i + 1) * wrap - w;
|
|
asm volatile(
|
|
"1: \n\t"
|
|
"movq (%1, %0), %%mm0 \n\t"
|
|
"movq %%mm0, (%0) \n\t"
|
|
"movq %%mm0, (%0, %2) \n\t"
|
|
"movq %%mm0, (%0, %2, 2) \n\t"
|
|
"movq %%mm0, (%0, %3) \n\t"
|
|
"addl $8, %0 \n\t"
|
|
"cmpl %4, %0 \n\t"
|
|
" jb 1b \n\t"
|
|
: "+r" (ptr)
|
|
: "r" ((int)buf - (int)ptr - w), "r" (-wrap), "r" (-wrap*3), "r" (ptr+width+2*w)
|
|
);
|
|
ptr= last_line + (i + 1) * wrap - w;
|
|
asm volatile(
|
|
"1: \n\t"
|
|
"movq (%1, %0), %%mm0 \n\t"
|
|
"movq %%mm0, (%0) \n\t"
|
|
"movq %%mm0, (%0, %2) \n\t"
|
|
"movq %%mm0, (%0, %2, 2) \n\t"
|
|
"movq %%mm0, (%0, %3) \n\t"
|
|
"addl $8, %0 \n\t"
|
|
"cmpl %4, %0 \n\t"
|
|
" jb 1b \n\t"
|
|
: "+r" (ptr)
|
|
: "r" ((int)last_line - (int)ptr - w), "r" (wrap), "r" (wrap*3), "r" (ptr+width+2*w)
|
|
);
|
|
}
|
|
}
|
|
|
|
#undef HAVE_MMX2
|
|
#define RENAME(a) a ## _MMX
|
|
#define RENAMEl(a) a ## _mmx
|
|
#include "mpegvideo_mmx_template.c"
|
|
|
|
#define HAVE_MMX2
|
|
#undef RENAME
|
|
#undef RENAMEl
|
|
#define RENAME(a) a ## _MMX2
|
|
#define RENAMEl(a) a ## _mmx2
|
|
#include "mpegvideo_mmx_template.c"
|
|
|
|
void MPV_common_init_mmx(MpegEncContext *s)
|
|
{
|
|
if (mm_flags & MM_MMX) {
|
|
const int dct_algo = s->avctx->dct_algo;
|
|
|
|
s->dct_unquantize_h263 = dct_unquantize_h263_mmx;
|
|
s->dct_unquantize_mpeg1 = dct_unquantize_mpeg1_mmx;
|
|
s->dct_unquantize_mpeg2 = dct_unquantize_mpeg2_mmx;
|
|
|
|
draw_edges = draw_edges_mmx;
|
|
|
|
if(dct_algo==FF_DCT_AUTO || dct_algo==FF_DCT_MMX){
|
|
if(mm_flags & MM_MMXEXT){
|
|
s->dct_quantize= dct_quantize_MMX2;
|
|
} else {
|
|
s->dct_quantize= dct_quantize_MMX;
|
|
}
|
|
}
|
|
}
|
|
}
|