mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2025-01-29 22:00:58 +02:00
split intra / inter dequantization
Originally committed as revision 2607 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer
parent
7ebfc0ea63
commit
d50635cd24
@ -2766,7 +2766,7 @@ static int quant_psnr8x8_c(/*MpegEncContext*/ void *c, uint8_t *src1, uint8_t *s
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memcpy(bak, temp, 64*sizeof(DCTELEM));
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s->block_last_index[0/*FIXME*/]= s->fast_dct_quantize(s, temp, 0/*FIXME*/, s->qscale, &i);
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s->dct_unquantize(s, temp, 0, s->qscale);
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s->dct_unquantize_inter(s, temp, 0, s->qscale);
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simple_idct(temp); //FIXME
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for(i=0; i<64; i++)
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@ -2839,7 +2839,10 @@ static int rd8x8_c(/*MpegEncContext*/ void *c, uint8_t *src1, uint8_t *src2, int
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}
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if(last>=0){
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s->dct_unquantize(s, temp, 0, s->qscale);
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if(s->mb_intra)
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s->dct_unquantize_intra(s, temp, 0, s->qscale);
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else
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s->dct_unquantize_inter(s, temp, 0, s->qscale);
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}
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s->dsp.idct_add(bak, stride, temp);
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@ -31,31 +31,92 @@ static const unsigned long long int mm_wabs __attribute__ ((aligned(8))) = 0xfff
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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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static void dct_unquantize_h263_intra_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 || s->h263_aic);
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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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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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qadd = (qscale - 1) | 1;
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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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if(s->ac_pred)
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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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//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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block[0]= level;
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}
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static void dct_unquantize_h263_inter_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 || s->h263_aic);
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nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
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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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@ -104,8 +165,6 @@ asm volatile(
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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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@ -138,24 +197,23 @@ asm volatile(
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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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static void dct_unquantize_mpeg1_intra_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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int block0;
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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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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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@ -205,9 +263,19 @@ asm volatile(
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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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block[0]= block0;
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}
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static void dct_unquantize_mpeg1_inter_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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} 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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@ -262,28 +330,25 @@ asm volatile(
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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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static void dct_unquantize_mpeg2_intra_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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int block0;
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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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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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@ -329,10 +394,21 @@ asm volatile(
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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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block[0]= block0;
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//Note, we dont do mismatch control for intra as errors cannot accumulate
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}
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static void dct_unquantize_mpeg2_inter_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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} 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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@ -397,7 +473,6 @@ asm volatile(
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::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "g" (qscale), "r" (-2*nCoeffs)
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: "%eax", "memory"
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);
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}
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}
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/* draw the edges of width 'w' of an image of size width, height
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@ -505,9 +580,12 @@ void MPV_common_init_mmx(MpegEncContext *s)
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if (mm_flags & MM_MMX) {
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const int dct_algo = s->avctx->dct_algo;
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s->dct_unquantize_h263 = dct_unquantize_h263_mmx;
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s->dct_unquantize_mpeg1 = dct_unquantize_mpeg1_mmx;
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s->dct_unquantize_mpeg2 = dct_unquantize_mpeg2_mmx;
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s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_mmx;
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s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_mmx;
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s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_mmx;
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s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_mmx;
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s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_mmx;
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s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_mmx;
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draw_edges = draw_edges_mmx;
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@ -40,11 +40,17 @@
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#ifdef CONFIG_ENCODERS
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static void encode_picture(MpegEncContext *s, int picture_number);
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#endif //CONFIG_ENCODERS
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static void dct_unquantize_mpeg1_c(MpegEncContext *s,
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static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s,
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DCTELEM *block, int n, int qscale);
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static void dct_unquantize_mpeg2_c(MpegEncContext *s,
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static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s,
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DCTELEM *block, int n, int qscale);
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static void dct_unquantize_h263_c(MpegEncContext *s,
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static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s,
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DCTELEM *block, int n, int qscale);
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static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s,
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DCTELEM *block, int n, int qscale);
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static void dct_unquantize_h263_intra_c(MpegEncContext *s,
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DCTELEM *block, int n, int qscale);
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static void dct_unquantize_h263_inter_c(MpegEncContext *s,
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DCTELEM *block, int n, int qscale);
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static void draw_edges_c(uint8_t *buf, int wrap, int width, int height, int w);
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#ifdef CONFIG_ENCODERS
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@ -204,9 +210,12 @@ void ff_write_quant_matrix(PutBitContext *pb, int16_t *matrix){
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/* init common dct for both encoder and decoder */
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int DCT_common_init(MpegEncContext *s)
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{
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s->dct_unquantize_h263 = dct_unquantize_h263_c;
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s->dct_unquantize_mpeg1 = dct_unquantize_mpeg1_c;
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s->dct_unquantize_mpeg2 = dct_unquantize_mpeg2_c;
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s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_c;
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s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_c;
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s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_c;
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s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_c;
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s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_c;
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s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_c;
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#ifdef CONFIG_ENCODERS
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s->dct_quantize= dct_quantize_c;
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@ -1186,12 +1195,16 @@ alloc:
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/* set dequantizer, we cant do it during init as it might change for mpeg4
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and we cant do it in the header decode as init isnt called for mpeg4 there yet */
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if(s->mpeg_quant || s->codec_id == CODEC_ID_MPEG2VIDEO)
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s->dct_unquantize = s->dct_unquantize_mpeg2;
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else if(s->out_format == FMT_H263)
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s->dct_unquantize = s->dct_unquantize_h263;
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else
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s->dct_unquantize = s->dct_unquantize_mpeg1;
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if(s->mpeg_quant || s->codec_id == CODEC_ID_MPEG2VIDEO){
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s->dct_unquantize_intra = s->dct_unquantize_mpeg2_intra;
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s->dct_unquantize_inter = s->dct_unquantize_mpeg2_inter;
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}else if(s->out_format == FMT_H263){
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s->dct_unquantize_intra = s->dct_unquantize_h263_intra;
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s->dct_unquantize_inter = s->dct_unquantize_h263_inter;
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}else{
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s->dct_unquantize_intra = s->dct_unquantize_mpeg1_intra;
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s->dct_unquantize_inter = s->dct_unquantize_mpeg1_inter;
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}
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if(s->dct_error_sum){
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assert(s->avctx->noise_reduction && s->encoding);
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@ -2746,7 +2759,7 @@ static inline void MPV_motion(MpegEncContext *s,
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static inline void put_dct(MpegEncContext *s,
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DCTELEM *block, int i, uint8_t *dest, int line_size, int qscale)
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{
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s->dct_unquantize(s, block, i, qscale);
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s->dct_unquantize_intra(s, block, i, qscale);
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s->dsp.idct_put (dest, line_size, block);
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}
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@ -2763,7 +2776,7 @@ static inline void add_dequant_dct(MpegEncContext *s,
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DCTELEM *block, int i, uint8_t *dest, int line_size, int qscale)
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{
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if (s->block_last_index[i] >= 0) {
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s->dct_unquantize(s, block, i, qscale);
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s->dct_unquantize_inter(s, block, i, qscale);
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s->dsp.idct_add (dest, line_size, block);
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}
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@ -4781,7 +4794,7 @@ static int dct_quantize_c(MpegEncContext *s,
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#endif //CONFIG_ENCODERS
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static void dct_unquantize_mpeg1_c(MpegEncContext *s,
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static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s,
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DCTELEM *block, int n, int qscale)
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{
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int i, level, nCoeffs;
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@ -4789,62 +4802,60 @@ static void dct_unquantize_mpeg1_c(MpegEncContext *s,
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nCoeffs= s->block_last_index[n];
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if (s->mb_intra) {
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if (n < 4)
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block[0] = block[0] * s->y_dc_scale;
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else
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block[0] = block[0] * s->c_dc_scale;
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/* XXX: only mpeg1 */
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quant_matrix = s->intra_matrix;
|
||||
for(i=1;i<=nCoeffs;i++) {
|
||||
int j= s->intra_scantable.permutated[i];
|
||||
level = block[j];
|
||||
if (level) {
|
||||
if (level < 0) {
|
||||
level = -level;
|
||||
level = (int)(level * qscale * quant_matrix[j]) >> 3;
|
||||
level = (level - 1) | 1;
|
||||
level = -level;
|
||||
} else {
|
||||
level = (int)(level * qscale * quant_matrix[j]) >> 3;
|
||||
level = (level - 1) | 1;
|
||||
}
|
||||
#ifdef PARANOID
|
||||
if (level < -2048 || level > 2047)
|
||||
fprintf(stderr, "unquant error %d %d\n", i, level);
|
||||
#endif
|
||||
block[j] = level;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
i = 0;
|
||||
quant_matrix = s->inter_matrix;
|
||||
for(;i<=nCoeffs;i++) {
|
||||
int j= s->intra_scantable.permutated[i];
|
||||
level = block[j];
|
||||
if (level) {
|
||||
if (level < 0) {
|
||||
level = -level;
|
||||
level = (((level << 1) + 1) * qscale *
|
||||
((int) (quant_matrix[j]))) >> 4;
|
||||
level = (level - 1) | 1;
|
||||
level = -level;
|
||||
} else {
|
||||
level = (((level << 1) + 1) * qscale *
|
||||
((int) (quant_matrix[j]))) >> 4;
|
||||
level = (level - 1) | 1;
|
||||
}
|
||||
#ifdef PARANOID
|
||||
if (level < -2048 || level > 2047)
|
||||
fprintf(stderr, "unquant error %d %d\n", i, level);
|
||||
#endif
|
||||
block[j] = level;
|
||||
if (n < 4)
|
||||
block[0] = block[0] * s->y_dc_scale;
|
||||
else
|
||||
block[0] = block[0] * s->c_dc_scale;
|
||||
/* XXX: only mpeg1 */
|
||||
quant_matrix = s->intra_matrix;
|
||||
for(i=1;i<=nCoeffs;i++) {
|
||||
int j= s->intra_scantable.permutated[i];
|
||||
level = block[j];
|
||||
if (level) {
|
||||
if (level < 0) {
|
||||
level = -level;
|
||||
level = (int)(level * qscale * quant_matrix[j]) >> 3;
|
||||
level = (level - 1) | 1;
|
||||
level = -level;
|
||||
} else {
|
||||
level = (int)(level * qscale * quant_matrix[j]) >> 3;
|
||||
level = (level - 1) | 1;
|
||||
}
|
||||
block[j] = level;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void dct_unquantize_mpeg2_c(MpegEncContext *s,
|
||||
static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s,
|
||||
DCTELEM *block, int n, int qscale)
|
||||
{
|
||||
int i, level, nCoeffs;
|
||||
const uint16_t *quant_matrix;
|
||||
|
||||
nCoeffs= s->block_last_index[n];
|
||||
|
||||
quant_matrix = s->inter_matrix;
|
||||
for(i=0; i<=nCoeffs; i++) {
|
||||
int j= s->intra_scantable.permutated[i];
|
||||
level = block[j];
|
||||
if (level) {
|
||||
if (level < 0) {
|
||||
level = -level;
|
||||
level = (((level << 1) + 1) * qscale *
|
||||
((int) (quant_matrix[j]))) >> 4;
|
||||
level = (level - 1) | 1;
|
||||
level = -level;
|
||||
} else {
|
||||
level = (((level << 1) + 1) * qscale *
|
||||
((int) (quant_matrix[j]))) >> 4;
|
||||
level = (level - 1) | 1;
|
||||
}
|
||||
block[j] = level;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s,
|
||||
DCTELEM *block, int n, int qscale)
|
||||
{
|
||||
int i, level, nCoeffs;
|
||||
@ -4853,61 +4864,96 @@ static void dct_unquantize_mpeg2_c(MpegEncContext *s,
|
||||
if(s->alternate_scan) nCoeffs= 63;
|
||||
else nCoeffs= s->block_last_index[n];
|
||||
|
||||
if (s->mb_intra) {
|
||||
if (n < 4)
|
||||
block[0] = block[0] * s->y_dc_scale;
|
||||
else
|
||||
block[0] = block[0] * s->c_dc_scale;
|
||||
quant_matrix = s->intra_matrix;
|
||||
for(i=1;i<=nCoeffs;i++) {
|
||||
int j= s->intra_scantable.permutated[i];
|
||||
level = block[j];
|
||||
if (level) {
|
||||
if (level < 0) {
|
||||
level = -level;
|
||||
level = (int)(level * qscale * quant_matrix[j]) >> 3;
|
||||
level = -level;
|
||||
} else {
|
||||
level = (int)(level * qscale * quant_matrix[j]) >> 3;
|
||||
}
|
||||
block[j] = level;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s,
|
||||
DCTELEM *block, int n, int qscale)
|
||||
{
|
||||
int i, level, nCoeffs;
|
||||
const uint16_t *quant_matrix;
|
||||
int sum=-1;
|
||||
|
||||
if(s->alternate_scan) nCoeffs= 63;
|
||||
else nCoeffs= s->block_last_index[n];
|
||||
|
||||
quant_matrix = s->inter_matrix;
|
||||
for(i=0; i<=nCoeffs; i++) {
|
||||
int j= s->intra_scantable.permutated[i];
|
||||
level = block[j];
|
||||
if (level) {
|
||||
if (level < 0) {
|
||||
level = -level;
|
||||
level = (((level << 1) + 1) * qscale *
|
||||
((int) (quant_matrix[j]))) >> 4;
|
||||
level = -level;
|
||||
} else {
|
||||
level = (((level << 1) + 1) * qscale *
|
||||
((int) (quant_matrix[j]))) >> 4;
|
||||
}
|
||||
block[j] = level;
|
||||
sum+=level;
|
||||
}
|
||||
}
|
||||
block[63]^=sum&1;
|
||||
}
|
||||
|
||||
static void dct_unquantize_h263_intra_c(MpegEncContext *s,
|
||||
DCTELEM *block, int n, int qscale)
|
||||
{
|
||||
int i, level, qmul, qadd;
|
||||
int nCoeffs;
|
||||
|
||||
assert(s->block_last_index[n]>=0);
|
||||
|
||||
qmul = qscale << 1;
|
||||
|
||||
if (!s->h263_aic) {
|
||||
if (n < 4)
|
||||
block[0] = block[0] * s->y_dc_scale;
|
||||
else
|
||||
block[0] = block[0] * s->c_dc_scale;
|
||||
quant_matrix = s->intra_matrix;
|
||||
for(i=1;i<=nCoeffs;i++) {
|
||||
int j= s->intra_scantable.permutated[i];
|
||||
level = block[j];
|
||||
if (level) {
|
||||
if (level < 0) {
|
||||
level = -level;
|
||||
level = (int)(level * qscale * quant_matrix[j]) >> 3;
|
||||
level = -level;
|
||||
} else {
|
||||
level = (int)(level * qscale * quant_matrix[j]) >> 3;
|
||||
}
|
||||
#ifdef PARANOID
|
||||
if (level < -2048 || level > 2047)
|
||||
fprintf(stderr, "unquant error %d %d\n", i, level);
|
||||
#endif
|
||||
block[j] = level;
|
||||
qadd = (qscale - 1) | 1;
|
||||
}else{
|
||||
qadd = 0;
|
||||
}
|
||||
if(s->ac_pred)
|
||||
nCoeffs=63;
|
||||
else
|
||||
nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
|
||||
|
||||
for(i=1; i<=nCoeffs; i++) {
|
||||
level = block[i];
|
||||
if (level) {
|
||||
if (level < 0) {
|
||||
level = level * qmul - qadd;
|
||||
} else {
|
||||
level = level * qmul + qadd;
|
||||
}
|
||||
block[i] = level;
|
||||
}
|
||||
} else {
|
||||
int sum=-1;
|
||||
i = 0;
|
||||
quant_matrix = s->inter_matrix;
|
||||
for(;i<=nCoeffs;i++) {
|
||||
int j= s->intra_scantable.permutated[i];
|
||||
level = block[j];
|
||||
if (level) {
|
||||
if (level < 0) {
|
||||
level = -level;
|
||||
level = (((level << 1) + 1) * qscale *
|
||||
((int) (quant_matrix[j]))) >> 4;
|
||||
level = -level;
|
||||
} else {
|
||||
level = (((level << 1) + 1) * qscale *
|
||||
((int) (quant_matrix[j]))) >> 4;
|
||||
}
|
||||
#ifdef PARANOID
|
||||
if (level < -2048 || level > 2047)
|
||||
fprintf(stderr, "unquant error %d %d\n", i, level);
|
||||
#endif
|
||||
block[j] = level;
|
||||
sum+=level;
|
||||
}
|
||||
}
|
||||
block[63]^=sum&1;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
static void dct_unquantize_h263_c(MpegEncContext *s,
|
||||
static void dct_unquantize_h263_inter_c(MpegEncContext *s,
|
||||
DCTELEM *block, int n, int qscale)
|
||||
{
|
||||
int i, level, qmul, qadd;
|
||||
@ -4918,22 +4964,9 @@ static void dct_unquantize_h263_c(MpegEncContext *s,
|
||||
qadd = (qscale - 1) | 1;
|
||||
qmul = qscale << 1;
|
||||
|
||||
if (s->mb_intra) {
|
||||
if (!s->h263_aic) {
|
||||
if (n < 4)
|
||||
block[0] = block[0] * s->y_dc_scale;
|
||||
else
|
||||
block[0] = block[0] * s->c_dc_scale;
|
||||
}else
|
||||
qadd = 0;
|
||||
i = 1;
|
||||
nCoeffs= 63; //does not allways use zigzag table
|
||||
} else {
|
||||
i = 0;
|
||||
nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
|
||||
}
|
||||
nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
|
||||
|
||||
for(;i<=nCoeffs;i++) {
|
||||
for(i=0; i<=nCoeffs; i++) {
|
||||
level = block[i];
|
||||
if (level) {
|
||||
if (level < 0) {
|
||||
@ -4941,16 +4974,11 @@ static void dct_unquantize_h263_c(MpegEncContext *s,
|
||||
} else {
|
||||
level = level * qmul + qadd;
|
||||
}
|
||||
#ifdef PARANOID
|
||||
if (level < -2048 || level > 2047)
|
||||
fprintf(stderr, "unquant error %d %d\n", i, level);
|
||||
#endif
|
||||
block[i] = level;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
static const AVOption mpeg4_options[] =
|
||||
{
|
||||
AVOPTION_CODEC_INT("bitrate", "desired video bitrate", bit_rate, 4, 240000000, 800000),
|
||||
|
||||
@ -645,13 +645,21 @@ typedef struct MpegEncContext {
|
||||
#define SLICE_END -2 ///<end marker found
|
||||
#define SLICE_NOEND -3 ///<no end marker or error found but mb count exceeded
|
||||
|
||||
void (*dct_unquantize_mpeg1)(struct MpegEncContext *s,
|
||||
void (*dct_unquantize_mpeg1_intra)(struct MpegEncContext *s,
|
||||
DCTELEM *block/*align 16*/, int n, int qscale);
|
||||
void (*dct_unquantize_mpeg2)(struct MpegEncContext *s,
|
||||
void (*dct_unquantize_mpeg1_inter)(struct MpegEncContext *s,
|
||||
DCTELEM *block/*align 16*/, int n, int qscale);
|
||||
void (*dct_unquantize_h263)(struct MpegEncContext *s,
|
||||
void (*dct_unquantize_mpeg2_intra)(struct MpegEncContext *s,
|
||||
DCTELEM *block/*align 16*/, int n, int qscale);
|
||||
void (*dct_unquantize)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
|
||||
void (*dct_unquantize_mpeg2_inter)(struct MpegEncContext *s,
|
||||
DCTELEM *block/*align 16*/, int n, int qscale);
|
||||
void (*dct_unquantize_h263_intra)(struct MpegEncContext *s,
|
||||
DCTELEM *block/*align 16*/, int n, int qscale);
|
||||
void (*dct_unquantize_h263_inter)(struct MpegEncContext *s,
|
||||
DCTELEM *block/*align 16*/, int n, int qscale);
|
||||
void (*dct_unquantize_intra)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
|
||||
DCTELEM *block/*align 16*/, int n, int qscale);
|
||||
void (*dct_unquantize_inter)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
|
||||
DCTELEM *block/*align 16*/, int n, int qscale);
|
||||
int (*dct_quantize)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale, int *overflow);
|
||||
int (*fast_dct_quantize)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale, int *overflow);
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user