2011-11-02 17:10:40 +00:00
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/*
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* Copyright (C) 2004 Michael Niedermayer <michaelni@gmx.at>
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*
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* This file is part of Libav.
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*
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* Libav 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 2.1 of the License, or (at your option) any later version.
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*
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* Libav 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 Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "libavutil/intmath.h"
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#include "libavutil/log.h"
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#include "libavutil/opt.h"
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#include "avcodec.h"
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#include "dsputil.h"
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#include "dwt.h"
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#include "snow.h"
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#include "rangecoder.h"
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#include "mathops.h"
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#include "mpegvideo.h"
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#include "h263.h"
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#undef NDEBUG
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#include <assert.h>
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#define QUANTIZE2 0
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#if QUANTIZE2==1
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#define Q2_STEP 8
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static void find_sse(SnowContext *s, Plane *p, int *score, int score_stride, IDWTELEM *r0, IDWTELEM *r1, int level, int orientation){
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SubBand *b= &p->band[level][orientation];
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int x, y;
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int xo=0;
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int yo=0;
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int step= 1 << (s->spatial_decomposition_count - level);
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if(orientation&1)
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xo= step>>1;
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if(orientation&2)
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yo= step>>1;
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//FIXME bias for nonzero ?
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//FIXME optimize
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memset(score, 0, sizeof(*score)*score_stride*((p->height + Q2_STEP-1)/Q2_STEP));
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for(y=0; y<p->height; y++){
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for(x=0; x<p->width; x++){
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int sx= (x-xo + step/2) / step / Q2_STEP;
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int sy= (y-yo + step/2) / step / Q2_STEP;
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int v= r0[x + y*p->width] - r1[x + y*p->width];
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assert(sx>=0 && sy>=0 && sx < score_stride);
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v= ((v+8)>>4)<<4;
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score[sx + sy*score_stride] += v*v;
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assert(score[sx + sy*score_stride] >= 0);
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}
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}
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}
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static void dequantize_all(SnowContext *s, Plane *p, IDWTELEM *buffer, int width, int height){
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int level, orientation;
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for(level=0; level<s->spatial_decomposition_count; level++){
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for(orientation=level ? 1 : 0; orientation<4; orientation++){
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SubBand *b= &p->band[level][orientation];
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IDWTELEM *dst= buffer + (b->ibuf - s->spatial_idwt_buffer);
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dequantize(s, b, dst, b->stride);
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}
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}
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}
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static void dwt_quantize(SnowContext *s, Plane *p, DWTELEM *buffer, int width, int height, int stride, int type){
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int level, orientation, ys, xs, x, y, pass;
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IDWTELEM best_dequant[height * stride];
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IDWTELEM idwt2_buffer[height * stride];
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const int score_stride= (width + 10)/Q2_STEP;
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int best_score[(width + 10)/Q2_STEP * (height + 10)/Q2_STEP]; //FIXME size
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int score[(width + 10)/Q2_STEP * (height + 10)/Q2_STEP]; //FIXME size
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int threshold= (s->m.lambda * s->m.lambda) >> 6;
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//FIXME pass the copy cleanly ?
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// memcpy(dwt_buffer, buffer, height * stride * sizeof(DWTELEM));
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ff_spatial_dwt(buffer, width, height, stride, type, s->spatial_decomposition_count);
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for(level=0; level<s->spatial_decomposition_count; level++){
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for(orientation=level ? 1 : 0; orientation<4; orientation++){
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SubBand *b= &p->band[level][orientation];
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IDWTELEM *dst= best_dequant + (b->ibuf - s->spatial_idwt_buffer);
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DWTELEM *src= buffer + (b-> buf - s->spatial_dwt_buffer);
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assert(src == b->buf); // code does not depend on this but it is true currently
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quantize(s, b, dst, src, b->stride, s->qbias);
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}
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}
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for(pass=0; pass<1; pass++){
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if(s->qbias == 0) //keyframe
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continue;
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for(level=0; level<s->spatial_decomposition_count; level++){
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for(orientation=level ? 1 : 0; orientation<4; orientation++){
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SubBand *b= &p->band[level][orientation];
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IDWTELEM *dst= idwt2_buffer + (b->ibuf - s->spatial_idwt_buffer);
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IDWTELEM *best_dst= best_dequant + (b->ibuf - s->spatial_idwt_buffer);
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for(ys= 0; ys<Q2_STEP; ys++){
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for(xs= 0; xs<Q2_STEP; xs++){
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memcpy(idwt2_buffer, best_dequant, height * stride * sizeof(IDWTELEM));
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dequantize_all(s, p, idwt2_buffer, width, height);
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ff_spatial_idwt(idwt2_buffer, width, height, stride, type, s->spatial_decomposition_count);
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find_sse(s, p, best_score, score_stride, idwt2_buffer, s->spatial_idwt_buffer, level, orientation);
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memcpy(idwt2_buffer, best_dequant, height * stride * sizeof(IDWTELEM));
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for(y=ys; y<b->height; y+= Q2_STEP){
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for(x=xs; x<b->width; x+= Q2_STEP){
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if(dst[x + y*b->stride]<0) dst[x + y*b->stride]++;
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if(dst[x + y*b->stride]>0) dst[x + y*b->stride]--;
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//FIXME try more than just --
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}
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}
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dequantize_all(s, p, idwt2_buffer, width, height);
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ff_spatial_idwt(idwt2_buffer, width, height, stride, type, s->spatial_decomposition_count);
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find_sse(s, p, score, score_stride, idwt2_buffer, s->spatial_idwt_buffer, level, orientation);
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for(y=ys; y<b->height; y+= Q2_STEP){
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for(x=xs; x<b->width; x+= Q2_STEP){
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int score_idx= x/Q2_STEP + (y/Q2_STEP)*score_stride;
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if(score[score_idx] <= best_score[score_idx] + threshold){
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best_score[score_idx]= score[score_idx];
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if(best_dst[x + y*b->stride]<0) best_dst[x + y*b->stride]++;
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if(best_dst[x + y*b->stride]>0) best_dst[x + y*b->stride]--;
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//FIXME copy instead
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}
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}
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}
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}
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}
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}
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}
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}
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memcpy(s->spatial_idwt_buffer, best_dequant, height * stride * sizeof(IDWTELEM)); //FIXME work with that directly instead of copy at the end
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}
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#endif /* QUANTIZE2==1 */
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#if CONFIG_SNOW_ENCODER
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static av_cold int encode_init(AVCodecContext *avctx)
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{
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SnowContext *s = avctx->priv_data;
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int plane_index;
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if(avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL){
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av_log(avctx, AV_LOG_ERROR, "This codec is under development, files encoded with it may not be decodable with future versions!!!\n"
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"Use vstrict=-2 / -strict -2 to use it anyway.\n");
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return -1;
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}
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if(avctx->prediction_method == DWT_97
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&& (avctx->flags & CODEC_FLAG_QSCALE)
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&& avctx->global_quality == 0){
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av_log(avctx, AV_LOG_ERROR, "The 9/7 wavelet is incompatible with lossless mode.\n");
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return -1;
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}
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s->spatial_decomposition_type= avctx->prediction_method; //FIXME add decorrelator type r transform_type
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s->mv_scale = (avctx->flags & CODEC_FLAG_QPEL) ? 2 : 4;
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s->block_max_depth= (avctx->flags & CODEC_FLAG_4MV ) ? 1 : 0;
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for(plane_index=0; plane_index<3; plane_index++){
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s->plane[plane_index].diag_mc= 1;
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s->plane[plane_index].htaps= 6;
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s->plane[plane_index].hcoeff[0]= 40;
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s->plane[plane_index].hcoeff[1]= -10;
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s->plane[plane_index].hcoeff[2]= 2;
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s->plane[plane_index].fast_mc= 1;
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}
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ff_snow_common_init(avctx);
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ff_snow_alloc_blocks(s);
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s->version=0;
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s->m.avctx = avctx;
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s->m.flags = avctx->flags;
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s->m.bit_rate= avctx->bit_rate;
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s->m.me.temp =
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s->m.me.scratchpad= av_mallocz((avctx->width+64)*2*16*2*sizeof(uint8_t));
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s->m.me.map = av_mallocz(ME_MAP_SIZE*sizeof(uint32_t));
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s->m.me.score_map = av_mallocz(ME_MAP_SIZE*sizeof(uint32_t));
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s->m.obmc_scratchpad= av_mallocz(MB_SIZE*MB_SIZE*12*sizeof(uint32_t));
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2012-02-09 09:28:46 +00:00
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ff_h263_encode_init(&s->m); //mv_penalty
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2011-11-02 17:10:40 +00:00
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s->max_ref_frames = FFMAX(FFMIN(avctx->refs, MAX_REF_FRAMES), 1);
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if(avctx->flags&CODEC_FLAG_PASS1){
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if(!avctx->stats_out)
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avctx->stats_out = av_mallocz(256);
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}
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if((avctx->flags&CODEC_FLAG_PASS2) || !(avctx->flags&CODEC_FLAG_QSCALE)){
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if(ff_rate_control_init(&s->m) < 0)
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return -1;
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}
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s->pass1_rc= !(avctx->flags & (CODEC_FLAG_QSCALE|CODEC_FLAG_PASS2));
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avctx->coded_frame= &s->current_picture;
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switch(avctx->pix_fmt){
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// case PIX_FMT_YUV444P:
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// case PIX_FMT_YUV422P:
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case PIX_FMT_YUV420P:
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case PIX_FMT_GRAY8:
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// case PIX_FMT_YUV411P:
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// case PIX_FMT_YUV410P:
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s->colorspace_type= 0;
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break;
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/* case PIX_FMT_RGB32:
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s->colorspace= 1;
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break;*/
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default:
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av_log(avctx, AV_LOG_ERROR, "pixel format not supported\n");
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return -1;
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}
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// avcodec_get_chroma_sub_sample(avctx->pix_fmt, &s->chroma_h_shift, &s->chroma_v_shift);
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s->chroma_h_shift= 1;
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s->chroma_v_shift= 1;
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ff_set_cmp(&s->dsp, s->dsp.me_cmp, s->avctx->me_cmp);
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ff_set_cmp(&s->dsp, s->dsp.me_sub_cmp, s->avctx->me_sub_cmp);
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s->avctx->get_buffer(s->avctx, &s->input_picture);
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if(s->avctx->me_method == ME_ITER){
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int i;
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int size= s->b_width * s->b_height << 2*s->block_max_depth;
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for(i=0; i<s->max_ref_frames; i++){
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s->ref_mvs[i]= av_mallocz(size*sizeof(int16_t[2]));
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s->ref_scores[i]= av_mallocz(size*sizeof(uint32_t));
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}
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}
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return 0;
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}
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//near copy & paste from dsputil, FIXME
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static int pix_sum(uint8_t * pix, int line_size, int w)
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{
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int s, i, j;
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s = 0;
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for (i = 0; i < w; i++) {
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for (j = 0; j < w; j++) {
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s += pix[0];
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pix ++;
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}
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pix += line_size - w;
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}
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return s;
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}
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//near copy & paste from dsputil, FIXME
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static int pix_norm1(uint8_t * pix, int line_size, int w)
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{
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int s, i, j;
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uint32_t *sq = ff_squareTbl + 256;
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s = 0;
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for (i = 0; i < w; i++) {
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for (j = 0; j < w; j ++) {
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s += sq[pix[0]];
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pix ++;
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}
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pix += line_size - w;
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}
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return s;
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}
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//FIXME copy&paste
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#define P_LEFT P[1]
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#define P_TOP P[2]
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#define P_TOPRIGHT P[3]
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#define P_MEDIAN P[4]
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#define P_MV1 P[9]
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#define FLAG_QPEL 1 //must be 1
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static int encode_q_branch(SnowContext *s, int level, int x, int y){
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uint8_t p_buffer[1024];
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uint8_t i_buffer[1024];
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uint8_t p_state[sizeof(s->block_state)];
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uint8_t i_state[sizeof(s->block_state)];
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RangeCoder pc, ic;
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uint8_t *pbbak= s->c.bytestream;
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uint8_t *pbbak_start= s->c.bytestream_start;
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int score, score2, iscore, i_len, p_len, block_s, sum, base_bits;
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const int w= s->b_width << s->block_max_depth;
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const int h= s->b_height << s->block_max_depth;
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const int rem_depth= s->block_max_depth - level;
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const int index= (x + y*w) << rem_depth;
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const int block_w= 1<<(LOG2_MB_SIZE - level);
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int trx= (x+1)<<rem_depth;
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int try= (y+1)<<rem_depth;
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const BlockNode *left = x ? &s->block[index-1] : &null_block;
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const BlockNode *top = y ? &s->block[index-w] : &null_block;
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const BlockNode *right = trx<w ? &s->block[index+1] : &null_block;
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const BlockNode *bottom= try<h ? &s->block[index+w] : &null_block;
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const BlockNode *tl = y && x ? &s->block[index-w-1] : left;
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const BlockNode *tr = y && trx<w && ((x&1)==0 || level==0) ? &s->block[index-w+(1<<rem_depth)] : tl; //FIXME use lt
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int pl = left->color[0];
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int pcb= left->color[1];
|
|
|
|
int pcr= left->color[2];
|
|
|
|
int pmx, pmy;
|
|
|
|
int mx=0, my=0;
|
|
|
|
int l,cr,cb;
|
|
|
|
const int stride= s->current_picture.linesize[0];
|
|
|
|
const int uvstride= s->current_picture.linesize[1];
|
|
|
|
uint8_t *current_data[3]= { s->input_picture.data[0] + (x + y* stride)*block_w,
|
|
|
|
s->input_picture.data[1] + (x + y*uvstride)*block_w/2,
|
|
|
|
s->input_picture.data[2] + (x + y*uvstride)*block_w/2};
|
|
|
|
int P[10][2];
|
|
|
|
int16_t last_mv[3][2];
|
|
|
|
int qpel= !!(s->avctx->flags & CODEC_FLAG_QPEL); //unused
|
|
|
|
const int shift= 1+qpel;
|
|
|
|
MotionEstContext *c= &s->m.me;
|
|
|
|
int ref_context= av_log2(2*left->ref) + av_log2(2*top->ref);
|
|
|
|
int mx_context= av_log2(2*FFABS(left->mx - top->mx));
|
|
|
|
int my_context= av_log2(2*FFABS(left->my - top->my));
|
|
|
|
int s_context= 2*left->level + 2*top->level + tl->level + tr->level;
|
|
|
|
int ref, best_ref, ref_score, ref_mx, ref_my;
|
|
|
|
|
|
|
|
assert(sizeof(s->block_state) >= 256);
|
|
|
|
if(s->keyframe){
|
|
|
|
set_blocks(s, level, x, y, pl, pcb, pcr, 0, 0, 0, BLOCK_INTRA);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
// clip predictors / edge ?
|
|
|
|
|
|
|
|
P_LEFT[0]= left->mx;
|
|
|
|
P_LEFT[1]= left->my;
|
|
|
|
P_TOP [0]= top->mx;
|
|
|
|
P_TOP [1]= top->my;
|
|
|
|
P_TOPRIGHT[0]= tr->mx;
|
|
|
|
P_TOPRIGHT[1]= tr->my;
|
|
|
|
|
|
|
|
last_mv[0][0]= s->block[index].mx;
|
|
|
|
last_mv[0][1]= s->block[index].my;
|
|
|
|
last_mv[1][0]= right->mx;
|
|
|
|
last_mv[1][1]= right->my;
|
|
|
|
last_mv[2][0]= bottom->mx;
|
|
|
|
last_mv[2][1]= bottom->my;
|
|
|
|
|
|
|
|
s->m.mb_stride=2;
|
|
|
|
s->m.mb_x=
|
|
|
|
s->m.mb_y= 0;
|
|
|
|
c->skip= 0;
|
|
|
|
|
|
|
|
assert(c-> stride == stride);
|
|
|
|
assert(c->uvstride == uvstride);
|
|
|
|
|
|
|
|
c->penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_cmp);
|
|
|
|
c->sub_penalty_factor= get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_sub_cmp);
|
|
|
|
c->mb_penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->mb_cmp);
|
|
|
|
c->current_mv_penalty= c->mv_penalty[s->m.f_code=1] + MAX_MV;
|
|
|
|
|
|
|
|
c->xmin = - x*block_w - 16+3;
|
|
|
|
c->ymin = - y*block_w - 16+3;
|
|
|
|
c->xmax = - (x+1)*block_w + (w<<(LOG2_MB_SIZE - s->block_max_depth)) + 16-3;
|
|
|
|
c->ymax = - (y+1)*block_w + (h<<(LOG2_MB_SIZE - s->block_max_depth)) + 16-3;
|
|
|
|
|
|
|
|
if(P_LEFT[0] > (c->xmax<<shift)) P_LEFT[0] = (c->xmax<<shift);
|
|
|
|
if(P_LEFT[1] > (c->ymax<<shift)) P_LEFT[1] = (c->ymax<<shift);
|
|
|
|
if(P_TOP[0] > (c->xmax<<shift)) P_TOP[0] = (c->xmax<<shift);
|
|
|
|
if(P_TOP[1] > (c->ymax<<shift)) P_TOP[1] = (c->ymax<<shift);
|
|
|
|
if(P_TOPRIGHT[0] < (c->xmin<<shift)) P_TOPRIGHT[0]= (c->xmin<<shift);
|
|
|
|
if(P_TOPRIGHT[0] > (c->xmax<<shift)) P_TOPRIGHT[0]= (c->xmax<<shift); //due to pmx no clip
|
|
|
|
if(P_TOPRIGHT[1] > (c->ymax<<shift)) P_TOPRIGHT[1]= (c->ymax<<shift);
|
|
|
|
|
|
|
|
P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
|
|
|
|
P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
|
|
|
|
|
|
|
|
if (!y) {
|
|
|
|
c->pred_x= P_LEFT[0];
|
|
|
|
c->pred_y= P_LEFT[1];
|
|
|
|
} else {
|
|
|
|
c->pred_x = P_MEDIAN[0];
|
|
|
|
c->pred_y = P_MEDIAN[1];
|
|
|
|
}
|
|
|
|
|
|
|
|
score= INT_MAX;
|
|
|
|
best_ref= 0;
|
|
|
|
for(ref=0; ref<s->ref_frames; ref++){
|
|
|
|
init_ref(c, current_data, s->last_picture[ref].data, NULL, block_w*x, block_w*y, 0);
|
|
|
|
|
|
|
|
ref_score= ff_epzs_motion_search(&s->m, &ref_mx, &ref_my, P, 0, /*ref_index*/ 0, last_mv,
|
|
|
|
(1<<16)>>shift, level-LOG2_MB_SIZE+4, block_w);
|
|
|
|
|
|
|
|
assert(ref_mx >= c->xmin);
|
|
|
|
assert(ref_mx <= c->xmax);
|
|
|
|
assert(ref_my >= c->ymin);
|
|
|
|
assert(ref_my <= c->ymax);
|
|
|
|
|
|
|
|
ref_score= c->sub_motion_search(&s->m, &ref_mx, &ref_my, ref_score, 0, 0, level-LOG2_MB_SIZE+4, block_w);
|
|
|
|
ref_score= ff_get_mb_score(&s->m, ref_mx, ref_my, 0, 0, level-LOG2_MB_SIZE+4, block_w, 0);
|
|
|
|
ref_score+= 2*av_log2(2*ref)*c->penalty_factor;
|
|
|
|
if(s->ref_mvs[ref]){
|
|
|
|
s->ref_mvs[ref][index][0]= ref_mx;
|
|
|
|
s->ref_mvs[ref][index][1]= ref_my;
|
|
|
|
s->ref_scores[ref][index]= ref_score;
|
|
|
|
}
|
|
|
|
if(score > ref_score){
|
|
|
|
score= ref_score;
|
|
|
|
best_ref= ref;
|
|
|
|
mx= ref_mx;
|
|
|
|
my= ref_my;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
//FIXME if mb_cmp != SSE then intra cannot be compared currently and mb_penalty vs. lambda2
|
|
|
|
|
|
|
|
// subpel search
|
|
|
|
base_bits= get_rac_count(&s->c) - 8*(s->c.bytestream - s->c.bytestream_start);
|
|
|
|
pc= s->c;
|
|
|
|
pc.bytestream_start=
|
|
|
|
pc.bytestream= p_buffer; //FIXME end/start? and at the other stoo
|
|
|
|
memcpy(p_state, s->block_state, sizeof(s->block_state));
|
|
|
|
|
|
|
|
if(level!=s->block_max_depth)
|
|
|
|
put_rac(&pc, &p_state[4 + s_context], 1);
|
|
|
|
put_rac(&pc, &p_state[1 + left->type + top->type], 0);
|
|
|
|
if(s->ref_frames > 1)
|
|
|
|
put_symbol(&pc, &p_state[128 + 1024 + 32*ref_context], best_ref, 0);
|
|
|
|
pred_mv(s, &pmx, &pmy, best_ref, left, top, tr);
|
|
|
|
put_symbol(&pc, &p_state[128 + 32*(mx_context + 16*!!best_ref)], mx - pmx, 1);
|
|
|
|
put_symbol(&pc, &p_state[128 + 32*(my_context + 16*!!best_ref)], my - pmy, 1);
|
|
|
|
p_len= pc.bytestream - pc.bytestream_start;
|
|
|
|
score += (s->lambda2*(get_rac_count(&pc)-base_bits))>>FF_LAMBDA_SHIFT;
|
|
|
|
|
|
|
|
block_s= block_w*block_w;
|
|
|
|
sum = pix_sum(current_data[0], stride, block_w);
|
|
|
|
l= (sum + block_s/2)/block_s;
|
|
|
|
iscore = pix_norm1(current_data[0], stride, block_w) - 2*l*sum + l*l*block_s;
|
|
|
|
|
|
|
|
block_s= block_w*block_w>>2;
|
|
|
|
sum = pix_sum(current_data[1], uvstride, block_w>>1);
|
|
|
|
cb= (sum + block_s/2)/block_s;
|
|
|
|
// iscore += pix_norm1(¤t_mb[1][0], uvstride, block_w>>1) - 2*cb*sum + cb*cb*block_s;
|
|
|
|
sum = pix_sum(current_data[2], uvstride, block_w>>1);
|
|
|
|
cr= (sum + block_s/2)/block_s;
|
|
|
|
// iscore += pix_norm1(¤t_mb[2][0], uvstride, block_w>>1) - 2*cr*sum + cr*cr*block_s;
|
|
|
|
|
|
|
|
ic= s->c;
|
|
|
|
ic.bytestream_start=
|
|
|
|
ic.bytestream= i_buffer; //FIXME end/start? and at the other stoo
|
|
|
|
memcpy(i_state, s->block_state, sizeof(s->block_state));
|
|
|
|
if(level!=s->block_max_depth)
|
|
|
|
put_rac(&ic, &i_state[4 + s_context], 1);
|
|
|
|
put_rac(&ic, &i_state[1 + left->type + top->type], 1);
|
|
|
|
put_symbol(&ic, &i_state[32], l-pl , 1);
|
|
|
|
put_symbol(&ic, &i_state[64], cb-pcb, 1);
|
|
|
|
put_symbol(&ic, &i_state[96], cr-pcr, 1);
|
|
|
|
i_len= ic.bytestream - ic.bytestream_start;
|
|
|
|
iscore += (s->lambda2*(get_rac_count(&ic)-base_bits))>>FF_LAMBDA_SHIFT;
|
|
|
|
|
|
|
|
// assert(score==256*256*256*64-1);
|
|
|
|
assert(iscore < 255*255*256 + s->lambda2*10);
|
|
|
|
assert(iscore >= 0);
|
|
|
|
assert(l>=0 && l<=255);
|
|
|
|
assert(pl>=0 && pl<=255);
|
|
|
|
|
|
|
|
if(level==0){
|
|
|
|
int varc= iscore >> 8;
|
|
|
|
int vard= score >> 8;
|
|
|
|
if (vard <= 64 || vard < varc)
|
|
|
|
c->scene_change_score+= ff_sqrt(vard) - ff_sqrt(varc);
|
|
|
|
else
|
|
|
|
c->scene_change_score+= s->m.qscale;
|
|
|
|
}
|
|
|
|
|
|
|
|
if(level!=s->block_max_depth){
|
|
|
|
put_rac(&s->c, &s->block_state[4 + s_context], 0);
|
|
|
|
score2 = encode_q_branch(s, level+1, 2*x+0, 2*y+0);
|
|
|
|
score2+= encode_q_branch(s, level+1, 2*x+1, 2*y+0);
|
|
|
|
score2+= encode_q_branch(s, level+1, 2*x+0, 2*y+1);
|
|
|
|
score2+= encode_q_branch(s, level+1, 2*x+1, 2*y+1);
|
|
|
|
score2+= s->lambda2>>FF_LAMBDA_SHIFT; //FIXME exact split overhead
|
|
|
|
|
|
|
|
if(score2 < score && score2 < iscore)
|
|
|
|
return score2;
|
|
|
|
}
|
|
|
|
|
|
|
|
if(iscore < score){
|
|
|
|
pred_mv(s, &pmx, &pmy, 0, left, top, tr);
|
|
|
|
memcpy(pbbak, i_buffer, i_len);
|
|
|
|
s->c= ic;
|
|
|
|
s->c.bytestream_start= pbbak_start;
|
|
|
|
s->c.bytestream= pbbak + i_len;
|
|
|
|
set_blocks(s, level, x, y, l, cb, cr, pmx, pmy, 0, BLOCK_INTRA);
|
|
|
|
memcpy(s->block_state, i_state, sizeof(s->block_state));
|
|
|
|
return iscore;
|
|
|
|
}else{
|
|
|
|
memcpy(pbbak, p_buffer, p_len);
|
|
|
|
s->c= pc;
|
|
|
|
s->c.bytestream_start= pbbak_start;
|
|
|
|
s->c.bytestream= pbbak + p_len;
|
|
|
|
set_blocks(s, level, x, y, pl, pcb, pcr, mx, my, best_ref, 0);
|
|
|
|
memcpy(s->block_state, p_state, sizeof(s->block_state));
|
|
|
|
return score;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void encode_q_branch2(SnowContext *s, int level, int x, int y){
|
|
|
|
const int w= s->b_width << s->block_max_depth;
|
|
|
|
const int rem_depth= s->block_max_depth - level;
|
|
|
|
const int index= (x + y*w) << rem_depth;
|
|
|
|
int trx= (x+1)<<rem_depth;
|
|
|
|
BlockNode *b= &s->block[index];
|
|
|
|
const BlockNode *left = x ? &s->block[index-1] : &null_block;
|
|
|
|
const BlockNode *top = y ? &s->block[index-w] : &null_block;
|
|
|
|
const BlockNode *tl = y && x ? &s->block[index-w-1] : left;
|
|
|
|
const BlockNode *tr = y && trx<w && ((x&1)==0 || level==0) ? &s->block[index-w+(1<<rem_depth)] : tl; //FIXME use lt
|
|
|
|
int pl = left->color[0];
|
|
|
|
int pcb= left->color[1];
|
|
|
|
int pcr= left->color[2];
|
|
|
|
int pmx, pmy;
|
|
|
|
int ref_context= av_log2(2*left->ref) + av_log2(2*top->ref);
|
|
|
|
int mx_context= av_log2(2*FFABS(left->mx - top->mx)) + 16*!!b->ref;
|
|
|
|
int my_context= av_log2(2*FFABS(left->my - top->my)) + 16*!!b->ref;
|
|
|
|
int s_context= 2*left->level + 2*top->level + tl->level + tr->level;
|
|
|
|
|
|
|
|
if(s->keyframe){
|
|
|
|
set_blocks(s, level, x, y, pl, pcb, pcr, 0, 0, 0, BLOCK_INTRA);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if(level!=s->block_max_depth){
|
|
|
|
if(same_block(b,b+1) && same_block(b,b+w) && same_block(b,b+w+1)){
|
|
|
|
put_rac(&s->c, &s->block_state[4 + s_context], 1);
|
|
|
|
}else{
|
|
|
|
put_rac(&s->c, &s->block_state[4 + s_context], 0);
|
|
|
|
encode_q_branch2(s, level+1, 2*x+0, 2*y+0);
|
|
|
|
encode_q_branch2(s, level+1, 2*x+1, 2*y+0);
|
|
|
|
encode_q_branch2(s, level+1, 2*x+0, 2*y+1);
|
|
|
|
encode_q_branch2(s, level+1, 2*x+1, 2*y+1);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if(b->type & BLOCK_INTRA){
|
|
|
|
pred_mv(s, &pmx, &pmy, 0, left, top, tr);
|
|
|
|
put_rac(&s->c, &s->block_state[1 + (left->type&1) + (top->type&1)], 1);
|
|
|
|
put_symbol(&s->c, &s->block_state[32], b->color[0]-pl , 1);
|
|
|
|
put_symbol(&s->c, &s->block_state[64], b->color[1]-pcb, 1);
|
|
|
|
put_symbol(&s->c, &s->block_state[96], b->color[2]-pcr, 1);
|
|
|
|
set_blocks(s, level, x, y, b->color[0], b->color[1], b->color[2], pmx, pmy, 0, BLOCK_INTRA);
|
|
|
|
}else{
|
|
|
|
pred_mv(s, &pmx, &pmy, b->ref, left, top, tr);
|
|
|
|
put_rac(&s->c, &s->block_state[1 + (left->type&1) + (top->type&1)], 0);
|
|
|
|
if(s->ref_frames > 1)
|
|
|
|
put_symbol(&s->c, &s->block_state[128 + 1024 + 32*ref_context], b->ref, 0);
|
|
|
|
put_symbol(&s->c, &s->block_state[128 + 32*mx_context], b->mx - pmx, 1);
|
|
|
|
put_symbol(&s->c, &s->block_state[128 + 32*my_context], b->my - pmy, 1);
|
|
|
|
set_blocks(s, level, x, y, pl, pcb, pcr, b->mx, b->my, b->ref, 0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static int get_dc(SnowContext *s, int mb_x, int mb_y, int plane_index){
|
|
|
|
int i, x2, y2;
|
|
|
|
Plane *p= &s->plane[plane_index];
|
|
|
|
const int block_size = MB_SIZE >> s->block_max_depth;
|
|
|
|
const int block_w = plane_index ? block_size/2 : block_size;
|
2012-02-15 10:43:58 +00:00
|
|
|
const uint8_t *obmc = plane_index ? ff_obmc_tab[s->block_max_depth+1] : ff_obmc_tab[s->block_max_depth];
|
2011-11-02 17:10:40 +00:00
|
|
|
const int obmc_stride= plane_index ? block_size : 2*block_size;
|
|
|
|
const int ref_stride= s->current_picture.linesize[plane_index];
|
|
|
|
uint8_t *src= s-> input_picture.data[plane_index];
|
|
|
|
IDWTELEM *dst= (IDWTELEM*)s->m.obmc_scratchpad + plane_index*block_size*block_size*4; //FIXME change to unsigned
|
|
|
|
const int b_stride = s->b_width << s->block_max_depth;
|
|
|
|
const int w= p->width;
|
|
|
|
const int h= p->height;
|
|
|
|
int index= mb_x + mb_y*b_stride;
|
|
|
|
BlockNode *b= &s->block[index];
|
|
|
|
BlockNode backup= *b;
|
|
|
|
int ab=0;
|
|
|
|
int aa=0;
|
|
|
|
|
|
|
|
b->type|= BLOCK_INTRA;
|
|
|
|
b->color[plane_index]= 0;
|
|
|
|
memset(dst, 0, obmc_stride*obmc_stride*sizeof(IDWTELEM));
|
|
|
|
|
|
|
|
for(i=0; i<4; i++){
|
|
|
|
int mb_x2= mb_x + (i &1) - 1;
|
|
|
|
int mb_y2= mb_y + (i>>1) - 1;
|
|
|
|
int x= block_w*mb_x2 + block_w/2;
|
|
|
|
int y= block_w*mb_y2 + block_w/2;
|
|
|
|
|
|
|
|
add_yblock(s, 0, NULL, dst + ((i&1)+(i>>1)*obmc_stride)*block_w, NULL, obmc,
|
|
|
|
x, y, block_w, block_w, w, h, obmc_stride, ref_stride, obmc_stride, mb_x2, mb_y2, 0, 0, plane_index);
|
|
|
|
|
|
|
|
for(y2= FFMAX(y, 0); y2<FFMIN(h, y+block_w); y2++){
|
|
|
|
for(x2= FFMAX(x, 0); x2<FFMIN(w, x+block_w); x2++){
|
|
|
|
int index= x2-(block_w*mb_x - block_w/2) + (y2-(block_w*mb_y - block_w/2))*obmc_stride;
|
|
|
|
int obmc_v= obmc[index];
|
|
|
|
int d;
|
|
|
|
if(y<0) obmc_v += obmc[index + block_w*obmc_stride];
|
|
|
|
if(x<0) obmc_v += obmc[index + block_w];
|
|
|
|
if(y+block_w>h) obmc_v += obmc[index - block_w*obmc_stride];
|
|
|
|
if(x+block_w>w) obmc_v += obmc[index - block_w];
|
|
|
|
//FIXME precalculate this or simplify it somehow else
|
|
|
|
|
|
|
|
d = -dst[index] + (1<<(FRAC_BITS-1));
|
|
|
|
dst[index] = d;
|
|
|
|
ab += (src[x2 + y2*ref_stride] - (d>>FRAC_BITS)) * obmc_v;
|
|
|
|
aa += obmc_v * obmc_v; //FIXME precalculate this
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
*b= backup;
|
|
|
|
|
|
|
|
return av_clip(((ab<<LOG2_OBMC_MAX) + aa/2)/aa, 0, 255); //FIXME we should not need clipping
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline int get_block_bits(SnowContext *s, int x, int y, int w){
|
|
|
|
const int b_stride = s->b_width << s->block_max_depth;
|
|
|
|
const int b_height = s->b_height<< s->block_max_depth;
|
|
|
|
int index= x + y*b_stride;
|
|
|
|
const BlockNode *b = &s->block[index];
|
|
|
|
const BlockNode *left = x ? &s->block[index-1] : &null_block;
|
|
|
|
const BlockNode *top = y ? &s->block[index-b_stride] : &null_block;
|
|
|
|
const BlockNode *tl = y && x ? &s->block[index-b_stride-1] : left;
|
|
|
|
const BlockNode *tr = y && x+w<b_stride ? &s->block[index-b_stride+w] : tl;
|
|
|
|
int dmx, dmy;
|
|
|
|
// int mx_context= av_log2(2*FFABS(left->mx - top->mx));
|
|
|
|
// int my_context= av_log2(2*FFABS(left->my - top->my));
|
|
|
|
|
|
|
|
if(x<0 || x>=b_stride || y>=b_height)
|
|
|
|
return 0;
|
|
|
|
/*
|
|
|
|
1 0 0
|
|
|
|
01X 1-2 1
|
|
|
|
001XX 3-6 2-3
|
|
|
|
0001XXX 7-14 4-7
|
|
|
|
00001XXXX 15-30 8-15
|
|
|
|
*/
|
|
|
|
//FIXME try accurate rate
|
|
|
|
//FIXME intra and inter predictors if surrounding blocks are not the same type
|
|
|
|
if(b->type & BLOCK_INTRA){
|
|
|
|
return 3+2*( av_log2(2*FFABS(left->color[0] - b->color[0]))
|
|
|
|
+ av_log2(2*FFABS(left->color[1] - b->color[1]))
|
|
|
|
+ av_log2(2*FFABS(left->color[2] - b->color[2])));
|
|
|
|
}else{
|
|
|
|
pred_mv(s, &dmx, &dmy, b->ref, left, top, tr);
|
|
|
|
dmx-= b->mx;
|
|
|
|
dmy-= b->my;
|
|
|
|
return 2*(1 + av_log2(2*FFABS(dmx)) //FIXME kill the 2* can be merged in lambda
|
|
|
|
+ av_log2(2*FFABS(dmy))
|
|
|
|
+ av_log2(2*b->ref));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static int get_block_rd(SnowContext *s, int mb_x, int mb_y, int plane_index, const uint8_t *obmc_edged){
|
|
|
|
Plane *p= &s->plane[plane_index];
|
|
|
|
const int block_size = MB_SIZE >> s->block_max_depth;
|
|
|
|
const int block_w = plane_index ? block_size/2 : block_size;
|
|
|
|
const int obmc_stride= plane_index ? block_size : 2*block_size;
|
|
|
|
const int ref_stride= s->current_picture.linesize[plane_index];
|
|
|
|
uint8_t *dst= s->current_picture.data[plane_index];
|
|
|
|
uint8_t *src= s-> input_picture.data[plane_index];
|
|
|
|
IDWTELEM *pred= (IDWTELEM*)s->m.obmc_scratchpad + plane_index*block_size*block_size*4;
|
|
|
|
uint8_t *cur = s->scratchbuf;
|
|
|
|
uint8_t tmp[ref_stride*(2*MB_SIZE+HTAPS_MAX-1)];
|
|
|
|
const int b_stride = s->b_width << s->block_max_depth;
|
|
|
|
const int b_height = s->b_height<< s->block_max_depth;
|
|
|
|
const int w= p->width;
|
|
|
|
const int h= p->height;
|
|
|
|
int distortion;
|
|
|
|
int rate= 0;
|
|
|
|
const int penalty_factor= get_penalty_factor(s->lambda, s->lambda2, s->avctx->me_cmp);
|
|
|
|
int sx= block_w*mb_x - block_w/2;
|
|
|
|
int sy= block_w*mb_y - block_w/2;
|
|
|
|
int x0= FFMAX(0,-sx);
|
|
|
|
int y0= FFMAX(0,-sy);
|
|
|
|
int x1= FFMIN(block_w*2, w-sx);
|
|
|
|
int y1= FFMIN(block_w*2, h-sy);
|
|
|
|
int i,x,y;
|
|
|
|
|
|
|
|
ff_snow_pred_block(s, cur, tmp, ref_stride, sx, sy, block_w*2, block_w*2, &s->block[mb_x + mb_y*b_stride], plane_index, w, h);
|
|
|
|
|
|
|
|
for(y=y0; y<y1; y++){
|
|
|
|
const uint8_t *obmc1= obmc_edged + y*obmc_stride;
|
|
|
|
const IDWTELEM *pred1 = pred + y*obmc_stride;
|
|
|
|
uint8_t *cur1 = cur + y*ref_stride;
|
|
|
|
uint8_t *dst1 = dst + sx + (sy+y)*ref_stride;
|
|
|
|
for(x=x0; x<x1; x++){
|
|
|
|
#if FRAC_BITS >= LOG2_OBMC_MAX
|
|
|
|
int v = (cur1[x] * obmc1[x]) << (FRAC_BITS - LOG2_OBMC_MAX);
|
|
|
|
#else
|
|
|
|
int v = (cur1[x] * obmc1[x] + (1<<(LOG2_OBMC_MAX - FRAC_BITS-1))) >> (LOG2_OBMC_MAX - FRAC_BITS);
|
|
|
|
#endif
|
|
|
|
v = (v + pred1[x]) >> FRAC_BITS;
|
|
|
|
if(v&(~255)) v= ~(v>>31);
|
|
|
|
dst1[x] = v;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* copy the regions where obmc[] = (uint8_t)256 */
|
|
|
|
if(LOG2_OBMC_MAX == 8
|
|
|
|
&& (mb_x == 0 || mb_x == b_stride-1)
|
|
|
|
&& (mb_y == 0 || mb_y == b_height-1)){
|
|
|
|
if(mb_x == 0)
|
|
|
|
x1 = block_w;
|
|
|
|
else
|
|
|
|
x0 = block_w;
|
|
|
|
if(mb_y == 0)
|
|
|
|
y1 = block_w;
|
|
|
|
else
|
|
|
|
y0 = block_w;
|
|
|
|
for(y=y0; y<y1; y++)
|
|
|
|
memcpy(dst + sx+x0 + (sy+y)*ref_stride, cur + x0 + y*ref_stride, x1-x0);
|
|
|
|
}
|
|
|
|
|
|
|
|
if(block_w==16){
|
|
|
|
/* FIXME rearrange dsputil to fit 32x32 cmp functions */
|
|
|
|
/* FIXME check alignment of the cmp wavelet vs the encoding wavelet */
|
|
|
|
/* FIXME cmps overlap but do not cover the wavelet's whole support.
|
|
|
|
* So improving the score of one block is not strictly guaranteed
|
|
|
|
* to improve the score of the whole frame, thus iterative motion
|
|
|
|
* estimation does not always converge. */
|
|
|
|
if(s->avctx->me_cmp == FF_CMP_W97)
|
|
|
|
distortion = ff_w97_32_c(&s->m, src + sx + sy*ref_stride, dst + sx + sy*ref_stride, ref_stride, 32);
|
|
|
|
else if(s->avctx->me_cmp == FF_CMP_W53)
|
|
|
|
distortion = ff_w53_32_c(&s->m, src + sx + sy*ref_stride, dst + sx + sy*ref_stride, ref_stride, 32);
|
|
|
|
else{
|
|
|
|
distortion = 0;
|
|
|
|
for(i=0; i<4; i++){
|
|
|
|
int off = sx+16*(i&1) + (sy+16*(i>>1))*ref_stride;
|
|
|
|
distortion += s->dsp.me_cmp[0](&s->m, src + off, dst + off, ref_stride, 16);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}else{
|
|
|
|
assert(block_w==8);
|
|
|
|
distortion = s->dsp.me_cmp[0](&s->m, src + sx + sy*ref_stride, dst + sx + sy*ref_stride, ref_stride, block_w*2);
|
|
|
|
}
|
|
|
|
|
|
|
|
if(plane_index==0){
|
|
|
|
for(i=0; i<4; i++){
|
|
|
|
/* ..RRr
|
|
|
|
* .RXx.
|
|
|
|
* rxx..
|
|
|
|
*/
|
|
|
|
rate += get_block_bits(s, mb_x + (i&1) - (i>>1), mb_y + (i>>1), 1);
|
|
|
|
}
|
|
|
|
if(mb_x == b_stride-2)
|
|
|
|
rate += get_block_bits(s, mb_x + 1, mb_y + 1, 1);
|
|
|
|
}
|
|
|
|
return distortion + rate*penalty_factor;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int get_4block_rd(SnowContext *s, int mb_x, int mb_y, int plane_index){
|
|
|
|
int i, y2;
|
|
|
|
Plane *p= &s->plane[plane_index];
|
|
|
|
const int block_size = MB_SIZE >> s->block_max_depth;
|
|
|
|
const int block_w = plane_index ? block_size/2 : block_size;
|
2012-02-15 10:43:58 +00:00
|
|
|
const uint8_t *obmc = plane_index ? ff_obmc_tab[s->block_max_depth+1] : ff_obmc_tab[s->block_max_depth];
|
2011-11-02 17:10:40 +00:00
|
|
|
const int obmc_stride= plane_index ? block_size : 2*block_size;
|
|
|
|
const int ref_stride= s->current_picture.linesize[plane_index];
|
|
|
|
uint8_t *dst= s->current_picture.data[plane_index];
|
|
|
|
uint8_t *src= s-> input_picture.data[plane_index];
|
|
|
|
//FIXME zero_dst is const but add_yblock changes dst if add is 0 (this is never the case for dst=zero_dst
|
|
|
|
// const has only been removed from zero_dst to suppress a warning
|
|
|
|
static IDWTELEM zero_dst[4096]; //FIXME
|
|
|
|
const int b_stride = s->b_width << s->block_max_depth;
|
|
|
|
const int w= p->width;
|
|
|
|
const int h= p->height;
|
|
|
|
int distortion= 0;
|
|
|
|
int rate= 0;
|
|
|
|
const int penalty_factor= get_penalty_factor(s->lambda, s->lambda2, s->avctx->me_cmp);
|
|
|
|
|
|
|
|
for(i=0; i<9; i++){
|
|
|
|
int mb_x2= mb_x + (i%3) - 1;
|
|
|
|
int mb_y2= mb_y + (i/3) - 1;
|
|
|
|
int x= block_w*mb_x2 + block_w/2;
|
|
|
|
int y= block_w*mb_y2 + block_w/2;
|
|
|
|
|
|
|
|
add_yblock(s, 0, NULL, zero_dst, dst, obmc,
|
|
|
|
x, y, block_w, block_w, w, h, /*dst_stride*/0, ref_stride, obmc_stride, mb_x2, mb_y2, 1, 1, plane_index);
|
|
|
|
|
|
|
|
//FIXME find a cleaner/simpler way to skip the outside stuff
|
|
|
|
for(y2= y; y2<0; y2++)
|
|
|
|
memcpy(dst + x + y2*ref_stride, src + x + y2*ref_stride, block_w);
|
|
|
|
for(y2= h; y2<y+block_w; y2++)
|
|
|
|
memcpy(dst + x + y2*ref_stride, src + x + y2*ref_stride, block_w);
|
|
|
|
if(x<0){
|
|
|
|
for(y2= y; y2<y+block_w; y2++)
|
|
|
|
memcpy(dst + x + y2*ref_stride, src + x + y2*ref_stride, -x);
|
|
|
|
}
|
|
|
|
if(x+block_w > w){
|
|
|
|
for(y2= y; y2<y+block_w; y2++)
|
|
|
|
memcpy(dst + w + y2*ref_stride, src + w + y2*ref_stride, x+block_w - w);
|
|
|
|
}
|
|
|
|
|
|
|
|
assert(block_w== 8 || block_w==16);
|
|
|
|
distortion += s->dsp.me_cmp[block_w==8](&s->m, src + x + y*ref_stride, dst + x + y*ref_stride, ref_stride, block_w);
|
|
|
|
}
|
|
|
|
|
|
|
|
if(plane_index==0){
|
|
|
|
BlockNode *b= &s->block[mb_x+mb_y*b_stride];
|
|
|
|
int merged= same_block(b,b+1) && same_block(b,b+b_stride) && same_block(b,b+b_stride+1);
|
|
|
|
|
|
|
|
/* ..RRRr
|
|
|
|
* .RXXx.
|
|
|
|
* .RXXx.
|
|
|
|
* rxxx.
|
|
|
|
*/
|
|
|
|
if(merged)
|
|
|
|
rate = get_block_bits(s, mb_x, mb_y, 2);
|
|
|
|
for(i=merged?4:0; i<9; i++){
|
|
|
|
static const int dxy[9][2] = {{0,0},{1,0},{0,1},{1,1},{2,0},{2,1},{-1,2},{0,2},{1,2}};
|
|
|
|
rate += get_block_bits(s, mb_x + dxy[i][0], mb_y + dxy[i][1], 1);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return distortion + rate*penalty_factor;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int encode_subband_c0run(SnowContext *s, SubBand *b, IDWTELEM *src, IDWTELEM *parent, int stride, int orientation){
|
|
|
|
const int w= b->width;
|
|
|
|
const int h= b->height;
|
|
|
|
int x, y;
|
|
|
|
|
|
|
|
if(1){
|
|
|
|
int run=0;
|
|
|
|
int runs[w*h];
|
|
|
|
int run_index=0;
|
|
|
|
int max_index;
|
|
|
|
|
|
|
|
for(y=0; y<h; y++){
|
|
|
|
for(x=0; x<w; x++){
|
|
|
|
int v, p=0;
|
|
|
|
int /*ll=0, */l=0, lt=0, t=0, rt=0;
|
|
|
|
v= src[x + y*stride];
|
|
|
|
|
|
|
|
if(y){
|
|
|
|
t= src[x + (y-1)*stride];
|
|
|
|
if(x){
|
|
|
|
lt= src[x - 1 + (y-1)*stride];
|
|
|
|
}
|
|
|
|
if(x + 1 < w){
|
|
|
|
rt= src[x + 1 + (y-1)*stride];
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if(x){
|
|
|
|
l= src[x - 1 + y*stride];
|
|
|
|
/*if(x > 1){
|
|
|
|
if(orientation==1) ll= src[y + (x-2)*stride];
|
|
|
|
else ll= src[x - 2 + y*stride];
|
|
|
|
}*/
|
|
|
|
}
|
|
|
|
if(parent){
|
|
|
|
int px= x>>1;
|
|
|
|
int py= y>>1;
|
|
|
|
if(px<b->parent->width && py<b->parent->height)
|
|
|
|
p= parent[px + py*2*stride];
|
|
|
|
}
|
|
|
|
if(!(/*ll|*/l|lt|t|rt|p)){
|
|
|
|
if(v){
|
|
|
|
runs[run_index++]= run;
|
|
|
|
run=0;
|
|
|
|
}else{
|
|
|
|
run++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
max_index= run_index;
|
|
|
|
runs[run_index++]= run;
|
|
|
|
run_index=0;
|
|
|
|
run= runs[run_index++];
|
|
|
|
|
|
|
|
put_symbol2(&s->c, b->state[30], max_index, 0);
|
|
|
|
if(run_index <= max_index)
|
|
|
|
put_symbol2(&s->c, b->state[1], run, 3);
|
|
|
|
|
|
|
|
for(y=0; y<h; y++){
|
|
|
|
if(s->c.bytestream_end - s->c.bytestream < w*40){
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
for(x=0; x<w; x++){
|
|
|
|
int v, p=0;
|
|
|
|
int /*ll=0, */l=0, lt=0, t=0, rt=0;
|
|
|
|
v= src[x + y*stride];
|
|
|
|
|
|
|
|
if(y){
|
|
|
|
t= src[x + (y-1)*stride];
|
|
|
|
if(x){
|
|
|
|
lt= src[x - 1 + (y-1)*stride];
|
|
|
|
}
|
|
|
|
if(x + 1 < w){
|
|
|
|
rt= src[x + 1 + (y-1)*stride];
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if(x){
|
|
|
|
l= src[x - 1 + y*stride];
|
|
|
|
/*if(x > 1){
|
|
|
|
if(orientation==1) ll= src[y + (x-2)*stride];
|
|
|
|
else ll= src[x - 2 + y*stride];
|
|
|
|
}*/
|
|
|
|
}
|
|
|
|
if(parent){
|
|
|
|
int px= x>>1;
|
|
|
|
int py= y>>1;
|
|
|
|
if(px<b->parent->width && py<b->parent->height)
|
|
|
|
p= parent[px + py*2*stride];
|
|
|
|
}
|
|
|
|
if(/*ll|*/l|lt|t|rt|p){
|
|
|
|
int context= av_log2(/*FFABS(ll) + */3*FFABS(l) + FFABS(lt) + 2*FFABS(t) + FFABS(rt) + FFABS(p));
|
|
|
|
|
|
|
|
put_rac(&s->c, &b->state[0][context], !!v);
|
|
|
|
}else{
|
|
|
|
if(!run){
|
|
|
|
run= runs[run_index++];
|
|
|
|
|
|
|
|
if(run_index <= max_index)
|
|
|
|
put_symbol2(&s->c, b->state[1], run, 3);
|
|
|
|
assert(v);
|
|
|
|
}else{
|
|
|
|
run--;
|
|
|
|
assert(!v);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if(v){
|
|
|
|
int context= av_log2(/*FFABS(ll) + */3*FFABS(l) + FFABS(lt) + 2*FFABS(t) + FFABS(rt) + FFABS(p));
|
|
|
|
int l2= 2*FFABS(l) + (l<0);
|
|
|
|
int t2= 2*FFABS(t) + (t<0);
|
|
|
|
|
|
|
|
put_symbol2(&s->c, b->state[context + 2], FFABS(v)-1, context-4);
|
2012-02-15 10:43:58 +00:00
|
|
|
put_rac(&s->c, &b->state[0][16 + 1 + 3 + ff_quant3bA[l2&0xFF] + 3*ff_quant3bA[t2&0xFF]], v<0);
|
2011-11-02 17:10:40 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int encode_subband(SnowContext *s, SubBand *b, IDWTELEM *src, IDWTELEM *parent, int stride, int orientation){
|
|
|
|
// encode_subband_qtree(s, b, src, parent, stride, orientation);
|
|
|
|
// encode_subband_z0run(s, b, src, parent, stride, orientation);
|
|
|
|
return encode_subband_c0run(s, b, src, parent, stride, orientation);
|
|
|
|
// encode_subband_dzr(s, b, src, parent, stride, orientation);
|
|
|
|
}
|
|
|
|
|
|
|
|
static av_always_inline int check_block(SnowContext *s, int mb_x, int mb_y, int p[3], int intra, const uint8_t *obmc_edged, int *best_rd){
|
|
|
|
const int b_stride= s->b_width << s->block_max_depth;
|
|
|
|
BlockNode *block= &s->block[mb_x + mb_y * b_stride];
|
|
|
|
BlockNode backup= *block;
|
2011-11-26 20:59:17 +00:00
|
|
|
unsigned value;
|
|
|
|
int rd, index;
|
2011-11-02 17:10:40 +00:00
|
|
|
|
|
|
|
assert(mb_x>=0 && mb_y>=0);
|
|
|
|
assert(mb_x<b_stride);
|
|
|
|
|
|
|
|
if(intra){
|
|
|
|
block->color[0] = p[0];
|
|
|
|
block->color[1] = p[1];
|
|
|
|
block->color[2] = p[2];
|
|
|
|
block->type |= BLOCK_INTRA;
|
|
|
|
}else{
|
|
|
|
index= (p[0] + 31*p[1]) & (ME_CACHE_SIZE-1);
|
|
|
|
value= s->me_cache_generation + (p[0]>>10) + (p[1]<<6) + (block->ref<<12);
|
|
|
|
if(s->me_cache[index] == value)
|
|
|
|
return 0;
|
|
|
|
s->me_cache[index]= value;
|
|
|
|
|
|
|
|
block->mx= p[0];
|
|
|
|
block->my= p[1];
|
|
|
|
block->type &= ~BLOCK_INTRA;
|
|
|
|
}
|
|
|
|
|
|
|
|
rd= get_block_rd(s, mb_x, mb_y, 0, obmc_edged);
|
|
|
|
|
|
|
|
//FIXME chroma
|
|
|
|
if(rd < *best_rd){
|
|
|
|
*best_rd= rd;
|
|
|
|
return 1;
|
|
|
|
}else{
|
|
|
|
*block= backup;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* special case for int[2] args we discard afterwards,
|
|
|
|
* fixes compilation problem with gcc 2.95 */
|
|
|
|
static av_always_inline int check_block_inter(SnowContext *s, int mb_x, int mb_y, int p0, int p1, const uint8_t *obmc_edged, int *best_rd){
|
|
|
|
int p[2] = {p0, p1};
|
|
|
|
return check_block(s, mb_x, mb_y, p, 0, obmc_edged, best_rd);
|
|
|
|
}
|
|
|
|
|
|
|
|
static av_always_inline int check_4block_inter(SnowContext *s, int mb_x, int mb_y, int p0, int p1, int ref, int *best_rd){
|
|
|
|
const int b_stride= s->b_width << s->block_max_depth;
|
|
|
|
BlockNode *block= &s->block[mb_x + mb_y * b_stride];
|
|
|
|
BlockNode backup[4]= {block[0], block[1], block[b_stride], block[b_stride+1]};
|
2011-11-26 20:59:17 +00:00
|
|
|
unsigned value;
|
|
|
|
int rd, index;
|
2011-11-02 17:10:40 +00:00
|
|
|
|
|
|
|
assert(mb_x>=0 && mb_y>=0);
|
|
|
|
assert(mb_x<b_stride);
|
|
|
|
assert(((mb_x|mb_y)&1) == 0);
|
|
|
|
|
|
|
|
index= (p0 + 31*p1) & (ME_CACHE_SIZE-1);
|
|
|
|
value= s->me_cache_generation + (p0>>10) + (p1<<6) + (block->ref<<12);
|
|
|
|
if(s->me_cache[index] == value)
|
|
|
|
return 0;
|
|
|
|
s->me_cache[index]= value;
|
|
|
|
|
|
|
|
block->mx= p0;
|
|
|
|
block->my= p1;
|
|
|
|
block->ref= ref;
|
|
|
|
block->type &= ~BLOCK_INTRA;
|
|
|
|
block[1]= block[b_stride]= block[b_stride+1]= *block;
|
|
|
|
|
|
|
|
rd= get_4block_rd(s, mb_x, mb_y, 0);
|
|
|
|
|
|
|
|
//FIXME chroma
|
|
|
|
if(rd < *best_rd){
|
|
|
|
*best_rd= rd;
|
|
|
|
return 1;
|
|
|
|
}else{
|
|
|
|
block[0]= backup[0];
|
|
|
|
block[1]= backup[1];
|
|
|
|
block[b_stride]= backup[2];
|
|
|
|
block[b_stride+1]= backup[3];
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void iterative_me(SnowContext *s){
|
|
|
|
int pass, mb_x, mb_y;
|
|
|
|
const int b_width = s->b_width << s->block_max_depth;
|
|
|
|
const int b_height= s->b_height << s->block_max_depth;
|
|
|
|
const int b_stride= b_width;
|
|
|
|
int color[3];
|
|
|
|
|
|
|
|
{
|
|
|
|
RangeCoder r = s->c;
|
|
|
|
uint8_t state[sizeof(s->block_state)];
|
|
|
|
memcpy(state, s->block_state, sizeof(s->block_state));
|
|
|
|
for(mb_y= 0; mb_y<s->b_height; mb_y++)
|
|
|
|
for(mb_x= 0; mb_x<s->b_width; mb_x++)
|
|
|
|
encode_q_branch(s, 0, mb_x, mb_y);
|
|
|
|
s->c = r;
|
|
|
|
memcpy(s->block_state, state, sizeof(s->block_state));
|
|
|
|
}
|
|
|
|
|
|
|
|
for(pass=0; pass<25; pass++){
|
|
|
|
int change= 0;
|
|
|
|
|
|
|
|
for(mb_y= 0; mb_y<b_height; mb_y++){
|
|
|
|
for(mb_x= 0; mb_x<b_width; mb_x++){
|
|
|
|
int dia_change, i, j, ref;
|
|
|
|
int best_rd= INT_MAX, ref_rd;
|
|
|
|
BlockNode backup, ref_b;
|
|
|
|
const int index= mb_x + mb_y * b_stride;
|
|
|
|
BlockNode *block= &s->block[index];
|
|
|
|
BlockNode *tb = mb_y ? &s->block[index-b_stride ] : NULL;
|
|
|
|
BlockNode *lb = mb_x ? &s->block[index -1] : NULL;
|
|
|
|
BlockNode *rb = mb_x+1<b_width ? &s->block[index +1] : NULL;
|
|
|
|
BlockNode *bb = mb_y+1<b_height ? &s->block[index+b_stride ] : NULL;
|
|
|
|
BlockNode *tlb= mb_x && mb_y ? &s->block[index-b_stride-1] : NULL;
|
|
|
|
BlockNode *trb= mb_x+1<b_width && mb_y ? &s->block[index-b_stride+1] : NULL;
|
|
|
|
BlockNode *blb= mb_x && mb_y+1<b_height ? &s->block[index+b_stride-1] : NULL;
|
|
|
|
BlockNode *brb= mb_x+1<b_width && mb_y+1<b_height ? &s->block[index+b_stride+1] : NULL;
|
|
|
|
const int b_w= (MB_SIZE >> s->block_max_depth);
|
|
|
|
uint8_t obmc_edged[b_w*2][b_w*2];
|
|
|
|
|
|
|
|
if(pass && (block->type & BLOCK_OPT))
|
|
|
|
continue;
|
|
|
|
block->type |= BLOCK_OPT;
|
|
|
|
|
|
|
|
backup= *block;
|
|
|
|
|
|
|
|
if(!s->me_cache_generation)
|
|
|
|
memset(s->me_cache, 0, sizeof(s->me_cache));
|
|
|
|
s->me_cache_generation += 1<<22;
|
|
|
|
|
|
|
|
//FIXME precalculate
|
|
|
|
{
|
|
|
|
int x, y;
|
2012-02-15 10:43:58 +00:00
|
|
|
memcpy(obmc_edged, ff_obmc_tab[s->block_max_depth], b_w*b_w*4);
|
2011-11-02 17:10:40 +00:00
|
|
|
if(mb_x==0)
|
|
|
|
for(y=0; y<b_w*2; y++)
|
|
|
|
memset(obmc_edged[y], obmc_edged[y][0] + obmc_edged[y][b_w-1], b_w);
|
|
|
|
if(mb_x==b_stride-1)
|
|
|
|
for(y=0; y<b_w*2; y++)
|
|
|
|
memset(obmc_edged[y]+b_w, obmc_edged[y][b_w] + obmc_edged[y][b_w*2-1], b_w);
|
|
|
|
if(mb_y==0){
|
|
|
|
for(x=0; x<b_w*2; x++)
|
|
|
|
obmc_edged[0][x] += obmc_edged[b_w-1][x];
|
|
|
|
for(y=1; y<b_w; y++)
|
|
|
|
memcpy(obmc_edged[y], obmc_edged[0], b_w*2);
|
|
|
|
}
|
|
|
|
if(mb_y==b_height-1){
|
|
|
|
for(x=0; x<b_w*2; x++)
|
|
|
|
obmc_edged[b_w*2-1][x] += obmc_edged[b_w][x];
|
|
|
|
for(y=b_w; y<b_w*2-1; y++)
|
|
|
|
memcpy(obmc_edged[y], obmc_edged[b_w*2-1], b_w*2);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
//skip stuff outside the picture
|
|
|
|
if(mb_x==0 || mb_y==0 || mb_x==b_width-1 || mb_y==b_height-1){
|
|
|
|
uint8_t *src= s-> input_picture.data[0];
|
|
|
|
uint8_t *dst= s->current_picture.data[0];
|
|
|
|
const int stride= s->current_picture.linesize[0];
|
|
|
|
const int block_w= MB_SIZE >> s->block_max_depth;
|
|
|
|
const int sx= block_w*mb_x - block_w/2;
|
|
|
|
const int sy= block_w*mb_y - block_w/2;
|
|
|
|
const int w= s->plane[0].width;
|
|
|
|
const int h= s->plane[0].height;
|
|
|
|
int y;
|
|
|
|
|
|
|
|
for(y=sy; y<0; y++)
|
|
|
|
memcpy(dst + sx + y*stride, src + sx + y*stride, block_w*2);
|
|
|
|
for(y=h; y<sy+block_w*2; y++)
|
|
|
|
memcpy(dst + sx + y*stride, src + sx + y*stride, block_w*2);
|
|
|
|
if(sx<0){
|
|
|
|
for(y=sy; y<sy+block_w*2; y++)
|
|
|
|
memcpy(dst + sx + y*stride, src + sx + y*stride, -sx);
|
|
|
|
}
|
|
|
|
if(sx+block_w*2 > w){
|
|
|
|
for(y=sy; y<sy+block_w*2; y++)
|
|
|
|
memcpy(dst + w + y*stride, src + w + y*stride, sx+block_w*2 - w);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// intra(black) = neighbors' contribution to the current block
|
|
|
|
for(i=0; i<3; i++)
|
|
|
|
color[i]= get_dc(s, mb_x, mb_y, i);
|
|
|
|
|
|
|
|
// get previous score (cannot be cached due to OBMC)
|
|
|
|
if(pass > 0 && (block->type&BLOCK_INTRA)){
|
|
|
|
int color0[3]= {block->color[0], block->color[1], block->color[2]};
|
|
|
|
check_block(s, mb_x, mb_y, color0, 1, *obmc_edged, &best_rd);
|
|
|
|
}else
|
|
|
|
check_block_inter(s, mb_x, mb_y, block->mx, block->my, *obmc_edged, &best_rd);
|
|
|
|
|
|
|
|
ref_b= *block;
|
|
|
|
ref_rd= best_rd;
|
|
|
|
for(ref=0; ref < s->ref_frames; ref++){
|
|
|
|
int16_t (*mvr)[2]= &s->ref_mvs[ref][index];
|
|
|
|
if(s->ref_scores[ref][index] > s->ref_scores[ref_b.ref][index]*3/2) //FIXME tune threshold
|
|
|
|
continue;
|
|
|
|
block->ref= ref;
|
|
|
|
best_rd= INT_MAX;
|
|
|
|
|
|
|
|
check_block_inter(s, mb_x, mb_y, mvr[0][0], mvr[0][1], *obmc_edged, &best_rd);
|
|
|
|
check_block_inter(s, mb_x, mb_y, 0, 0, *obmc_edged, &best_rd);
|
|
|
|
if(tb)
|
|
|
|
check_block_inter(s, mb_x, mb_y, mvr[-b_stride][0], mvr[-b_stride][1], *obmc_edged, &best_rd);
|
|
|
|
if(lb)
|
|
|
|
check_block_inter(s, mb_x, mb_y, mvr[-1][0], mvr[-1][1], *obmc_edged, &best_rd);
|
|
|
|
if(rb)
|
|
|
|
check_block_inter(s, mb_x, mb_y, mvr[1][0], mvr[1][1], *obmc_edged, &best_rd);
|
|
|
|
if(bb)
|
|
|
|
check_block_inter(s, mb_x, mb_y, mvr[b_stride][0], mvr[b_stride][1], *obmc_edged, &best_rd);
|
|
|
|
|
|
|
|
/* fullpel ME */
|
|
|
|
//FIXME avoid subpel interpolation / round to nearest integer
|
|
|
|
do{
|
|
|
|
dia_change=0;
|
|
|
|
for(i=0; i<FFMAX(s->avctx->dia_size, 1); i++){
|
|
|
|
for(j=0; j<i; j++){
|
|
|
|
dia_change |= check_block_inter(s, mb_x, mb_y, block->mx+4*(i-j), block->my+(4*j), *obmc_edged, &best_rd);
|
|
|
|
dia_change |= check_block_inter(s, mb_x, mb_y, block->mx-4*(i-j), block->my-(4*j), *obmc_edged, &best_rd);
|
|
|
|
dia_change |= check_block_inter(s, mb_x, mb_y, block->mx+4*(i-j), block->my-(4*j), *obmc_edged, &best_rd);
|
|
|
|
dia_change |= check_block_inter(s, mb_x, mb_y, block->mx-4*(i-j), block->my+(4*j), *obmc_edged, &best_rd);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}while(dia_change);
|
|
|
|
/* subpel ME */
|
|
|
|
do{
|
|
|
|
static const int square[8][2]= {{+1, 0},{-1, 0},{ 0,+1},{ 0,-1},{+1,+1},{-1,-1},{+1,-1},{-1,+1},};
|
|
|
|
dia_change=0;
|
|
|
|
for(i=0; i<8; i++)
|
|
|
|
dia_change |= check_block_inter(s, mb_x, mb_y, block->mx+square[i][0], block->my+square[i][1], *obmc_edged, &best_rd);
|
|
|
|
}while(dia_change);
|
|
|
|
//FIXME or try the standard 2 pass qpel or similar
|
|
|
|
|
|
|
|
mvr[0][0]= block->mx;
|
|
|
|
mvr[0][1]= block->my;
|
|
|
|
if(ref_rd > best_rd){
|
|
|
|
ref_rd= best_rd;
|
|
|
|
ref_b= *block;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
best_rd= ref_rd;
|
|
|
|
*block= ref_b;
|
|
|
|
check_block(s, mb_x, mb_y, color, 1, *obmc_edged, &best_rd);
|
|
|
|
//FIXME RD style color selection
|
|
|
|
if(!same_block(block, &backup)){
|
|
|
|
if(tb ) tb ->type &= ~BLOCK_OPT;
|
|
|
|
if(lb ) lb ->type &= ~BLOCK_OPT;
|
|
|
|
if(rb ) rb ->type &= ~BLOCK_OPT;
|
|
|
|
if(bb ) bb ->type &= ~BLOCK_OPT;
|
|
|
|
if(tlb) tlb->type &= ~BLOCK_OPT;
|
|
|
|
if(trb) trb->type &= ~BLOCK_OPT;
|
|
|
|
if(blb) blb->type &= ~BLOCK_OPT;
|
|
|
|
if(brb) brb->type &= ~BLOCK_OPT;
|
|
|
|
change ++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "pass:%d changed:%d\n", pass, change);
|
|
|
|
if(!change)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if(s->block_max_depth == 1){
|
|
|
|
int change= 0;
|
|
|
|
for(mb_y= 0; mb_y<b_height; mb_y+=2){
|
|
|
|
for(mb_x= 0; mb_x<b_width; mb_x+=2){
|
|
|
|
int i;
|
|
|
|
int best_rd, init_rd;
|
|
|
|
const int index= mb_x + mb_y * b_stride;
|
|
|
|
BlockNode *b[4];
|
|
|
|
|
|
|
|
b[0]= &s->block[index];
|
|
|
|
b[1]= b[0]+1;
|
|
|
|
b[2]= b[0]+b_stride;
|
|
|
|
b[3]= b[2]+1;
|
|
|
|
if(same_block(b[0], b[1]) &&
|
|
|
|
same_block(b[0], b[2]) &&
|
|
|
|
same_block(b[0], b[3]))
|
|
|
|
continue;
|
|
|
|
|
|
|
|
if(!s->me_cache_generation)
|
|
|
|
memset(s->me_cache, 0, sizeof(s->me_cache));
|
|
|
|
s->me_cache_generation += 1<<22;
|
|
|
|
|
|
|
|
init_rd= best_rd= get_4block_rd(s, mb_x, mb_y, 0);
|
|
|
|
|
|
|
|
//FIXME more multiref search?
|
|
|
|
check_4block_inter(s, mb_x, mb_y,
|
|
|
|
(b[0]->mx + b[1]->mx + b[2]->mx + b[3]->mx + 2) >> 2,
|
|
|
|
(b[0]->my + b[1]->my + b[2]->my + b[3]->my + 2) >> 2, 0, &best_rd);
|
|
|
|
|
|
|
|
for(i=0; i<4; i++)
|
|
|
|
if(!(b[i]->type&BLOCK_INTRA))
|
|
|
|
check_4block_inter(s, mb_x, mb_y, b[i]->mx, b[i]->my, b[i]->ref, &best_rd);
|
|
|
|
|
|
|
|
if(init_rd != best_rd)
|
|
|
|
change++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "pass:4mv changed:%d\n", change*4);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void encode_blocks(SnowContext *s, int search){
|
|
|
|
int x, y;
|
|
|
|
int w= s->b_width;
|
|
|
|
int h= s->b_height;
|
|
|
|
|
|
|
|
if(s->avctx->me_method == ME_ITER && !s->keyframe && search)
|
|
|
|
iterative_me(s);
|
|
|
|
|
|
|
|
for(y=0; y<h; y++){
|
|
|
|
if(s->c.bytestream_end - s->c.bytestream < w*MB_SIZE*MB_SIZE*3){ //FIXME nicer limit
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
for(x=0; x<w; x++){
|
|
|
|
if(s->avctx->me_method == ME_ITER || !search)
|
|
|
|
encode_q_branch2(s, 0, x, y);
|
|
|
|
else
|
|
|
|
encode_q_branch (s, 0, x, y);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void quantize(SnowContext *s, SubBand *b, IDWTELEM *dst, DWTELEM *src, int stride, int bias){
|
|
|
|
const int w= b->width;
|
|
|
|
const int h= b->height;
|
|
|
|
const int qlog= av_clip(s->qlog + b->qlog, 0, QROOT*16);
|
2012-02-15 10:43:58 +00:00
|
|
|
const int qmul= ff_qexp[qlog&(QROOT-1)]<<((qlog>>QSHIFT) + ENCODER_EXTRA_BITS);
|
2011-11-02 17:10:40 +00:00
|
|
|
int x,y, thres1, thres2;
|
|
|
|
|
|
|
|
if(s->qlog == LOSSLESS_QLOG){
|
|
|
|
for(y=0; y<h; y++)
|
|
|
|
for(x=0; x<w; x++)
|
|
|
|
dst[x + y*stride]= src[x + y*stride];
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
bias= bias ? 0 : (3*qmul)>>3;
|
|
|
|
thres1= ((qmul - bias)>>QEXPSHIFT) - 1;
|
|
|
|
thres2= 2*thres1;
|
|
|
|
|
|
|
|
if(!bias){
|
|
|
|
for(y=0; y<h; y++){
|
|
|
|
for(x=0; x<w; x++){
|
|
|
|
int i= src[x + y*stride];
|
|
|
|
|
|
|
|
if((unsigned)(i+thres1) > thres2){
|
|
|
|
if(i>=0){
|
|
|
|
i<<= QEXPSHIFT;
|
|
|
|
i/= qmul; //FIXME optimize
|
|
|
|
dst[x + y*stride]= i;
|
|
|
|
}else{
|
|
|
|
i= -i;
|
|
|
|
i<<= QEXPSHIFT;
|
|
|
|
i/= qmul; //FIXME optimize
|
|
|
|
dst[x + y*stride]= -i;
|
|
|
|
}
|
|
|
|
}else
|
|
|
|
dst[x + y*stride]= 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}else{
|
|
|
|
for(y=0; y<h; y++){
|
|
|
|
for(x=0; x<w; x++){
|
|
|
|
int i= src[x + y*stride];
|
|
|
|
|
|
|
|
if((unsigned)(i+thres1) > thres2){
|
|
|
|
if(i>=0){
|
|
|
|
i<<= QEXPSHIFT;
|
|
|
|
i= (i + bias) / qmul; //FIXME optimize
|
|
|
|
dst[x + y*stride]= i;
|
|
|
|
}else{
|
|
|
|
i= -i;
|
|
|
|
i<<= QEXPSHIFT;
|
|
|
|
i= (i + bias) / qmul; //FIXME optimize
|
|
|
|
dst[x + y*stride]= -i;
|
|
|
|
}
|
|
|
|
}else
|
|
|
|
dst[x + y*stride]= 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dequantize(SnowContext *s, SubBand *b, IDWTELEM *src, int stride){
|
|
|
|
const int w= b->width;
|
|
|
|
const int h= b->height;
|
|
|
|
const int qlog= av_clip(s->qlog + b->qlog, 0, QROOT*16);
|
2012-02-15 10:43:58 +00:00
|
|
|
const int qmul= ff_qexp[qlog&(QROOT-1)]<<(qlog>>QSHIFT);
|
2011-11-02 17:10:40 +00:00
|
|
|
const int qadd= (s->qbias*qmul)>>QBIAS_SHIFT;
|
|
|
|
int x,y;
|
|
|
|
|
|
|
|
if(s->qlog == LOSSLESS_QLOG) return;
|
|
|
|
|
|
|
|
for(y=0; y<h; y++){
|
|
|
|
for(x=0; x<w; x++){
|
|
|
|
int i= src[x + y*stride];
|
|
|
|
if(i<0){
|
|
|
|
src[x + y*stride]= -((-i*qmul + qadd)>>(QEXPSHIFT)); //FIXME try different bias
|
|
|
|
}else if(i>0){
|
|
|
|
src[x + y*stride]= (( i*qmul + qadd)>>(QEXPSHIFT));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void decorrelate(SnowContext *s, SubBand *b, IDWTELEM *src, int stride, int inverse, int use_median){
|
|
|
|
const int w= b->width;
|
|
|
|
const int h= b->height;
|
|
|
|
int x,y;
|
|
|
|
|
|
|
|
for(y=h-1; y>=0; y--){
|
|
|
|
for(x=w-1; x>=0; x--){
|
|
|
|
int i= x + y*stride;
|
|
|
|
|
|
|
|
if(x){
|
|
|
|
if(use_median){
|
|
|
|
if(y && x+1<w) src[i] -= mid_pred(src[i - 1], src[i - stride], src[i - stride + 1]);
|
|
|
|
else src[i] -= src[i - 1];
|
|
|
|
}else{
|
|
|
|
if(y) src[i] -= mid_pred(src[i - 1], src[i - stride], src[i - 1] + src[i - stride] - src[i - 1 - stride]);
|
|
|
|
else src[i] -= src[i - 1];
|
|
|
|
}
|
|
|
|
}else{
|
|
|
|
if(y) src[i] -= src[i - stride];
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void correlate(SnowContext *s, SubBand *b, IDWTELEM *src, int stride, int inverse, int use_median){
|
|
|
|
const int w= b->width;
|
|
|
|
const int h= b->height;
|
|
|
|
int x,y;
|
|
|
|
|
|
|
|
for(y=0; y<h; y++){
|
|
|
|
for(x=0; x<w; x++){
|
|
|
|
int i= x + y*stride;
|
|
|
|
|
|
|
|
if(x){
|
|
|
|
if(use_median){
|
|
|
|
if(y && x+1<w) src[i] += mid_pred(src[i - 1], src[i - stride], src[i - stride + 1]);
|
|
|
|
else src[i] += src[i - 1];
|
|
|
|
}else{
|
|
|
|
if(y) src[i] += mid_pred(src[i - 1], src[i - stride], src[i - 1] + src[i - stride] - src[i - 1 - stride]);
|
|
|
|
else src[i] += src[i - 1];
|
|
|
|
}
|
|
|
|
}else{
|
|
|
|
if(y) src[i] += src[i - stride];
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void encode_qlogs(SnowContext *s){
|
|
|
|
int plane_index, level, orientation;
|
|
|
|
|
|
|
|
for(plane_index=0; plane_index<2; plane_index++){
|
|
|
|
for(level=0; level<s->spatial_decomposition_count; level++){
|
|
|
|
for(orientation=level ? 1:0; orientation<4; orientation++){
|
|
|
|
if(orientation==2) continue;
|
|
|
|
put_symbol(&s->c, s->header_state, s->plane[plane_index].band[level][orientation].qlog, 1);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void encode_header(SnowContext *s){
|
|
|
|
int plane_index, i;
|
|
|
|
uint8_t kstate[32];
|
|
|
|
|
|
|
|
memset(kstate, MID_STATE, sizeof(kstate));
|
|
|
|
|
|
|
|
put_rac(&s->c, kstate, s->keyframe);
|
|
|
|
if(s->keyframe || s->always_reset){
|
|
|
|
ff_snow_reset_contexts(s);
|
|
|
|
s->last_spatial_decomposition_type=
|
|
|
|
s->last_qlog=
|
|
|
|
s->last_qbias=
|
|
|
|
s->last_mv_scale=
|
|
|
|
s->last_block_max_depth= 0;
|
|
|
|
for(plane_index=0; plane_index<2; plane_index++){
|
|
|
|
Plane *p= &s->plane[plane_index];
|
|
|
|
p->last_htaps=0;
|
|
|
|
p->last_diag_mc=0;
|
|
|
|
memset(p->last_hcoeff, 0, sizeof(p->last_hcoeff));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if(s->keyframe){
|
|
|
|
put_symbol(&s->c, s->header_state, s->version, 0);
|
|
|
|
put_rac(&s->c, s->header_state, s->always_reset);
|
|
|
|
put_symbol(&s->c, s->header_state, s->temporal_decomposition_type, 0);
|
|
|
|
put_symbol(&s->c, s->header_state, s->temporal_decomposition_count, 0);
|
|
|
|
put_symbol(&s->c, s->header_state, s->spatial_decomposition_count, 0);
|
|
|
|
put_symbol(&s->c, s->header_state, s->colorspace_type, 0);
|
|
|
|
put_symbol(&s->c, s->header_state, s->chroma_h_shift, 0);
|
|
|
|
put_symbol(&s->c, s->header_state, s->chroma_v_shift, 0);
|
|
|
|
put_rac(&s->c, s->header_state, s->spatial_scalability);
|
|
|
|
// put_rac(&s->c, s->header_state, s->rate_scalability);
|
|
|
|
put_symbol(&s->c, s->header_state, s->max_ref_frames-1, 0);
|
|
|
|
|
|
|
|
encode_qlogs(s);
|
|
|
|
}
|
|
|
|
|
|
|
|
if(!s->keyframe){
|
|
|
|
int update_mc=0;
|
|
|
|
for(plane_index=0; plane_index<2; plane_index++){
|
|
|
|
Plane *p= &s->plane[plane_index];
|
|
|
|
update_mc |= p->last_htaps != p->htaps;
|
|
|
|
update_mc |= p->last_diag_mc != p->diag_mc;
|
|
|
|
update_mc |= !!memcmp(p->last_hcoeff, p->hcoeff, sizeof(p->hcoeff));
|
|
|
|
}
|
|
|
|
put_rac(&s->c, s->header_state, update_mc);
|
|
|
|
if(update_mc){
|
|
|
|
for(plane_index=0; plane_index<2; plane_index++){
|
|
|
|
Plane *p= &s->plane[plane_index];
|
|
|
|
put_rac(&s->c, s->header_state, p->diag_mc);
|
|
|
|
put_symbol(&s->c, s->header_state, p->htaps/2-1, 0);
|
|
|
|
for(i= p->htaps/2; i; i--)
|
|
|
|
put_symbol(&s->c, s->header_state, FFABS(p->hcoeff[i]), 0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if(s->last_spatial_decomposition_count != s->spatial_decomposition_count){
|
|
|
|
put_rac(&s->c, s->header_state, 1);
|
|
|
|
put_symbol(&s->c, s->header_state, s->spatial_decomposition_count, 0);
|
|
|
|
encode_qlogs(s);
|
|
|
|
}else
|
|
|
|
put_rac(&s->c, s->header_state, 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
put_symbol(&s->c, s->header_state, s->spatial_decomposition_type - s->last_spatial_decomposition_type, 1);
|
|
|
|
put_symbol(&s->c, s->header_state, s->qlog - s->last_qlog , 1);
|
|
|
|
put_symbol(&s->c, s->header_state, s->mv_scale - s->last_mv_scale, 1);
|
|
|
|
put_symbol(&s->c, s->header_state, s->qbias - s->last_qbias , 1);
|
|
|
|
put_symbol(&s->c, s->header_state, s->block_max_depth - s->last_block_max_depth, 1);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
static void update_last_header_values(SnowContext *s){
|
|
|
|
int plane_index;
|
|
|
|
|
|
|
|
if(!s->keyframe){
|
|
|
|
for(plane_index=0; plane_index<2; plane_index++){
|
|
|
|
Plane *p= &s->plane[plane_index];
|
|
|
|
p->last_diag_mc= p->diag_mc;
|
|
|
|
p->last_htaps = p->htaps;
|
|
|
|
memcpy(p->last_hcoeff, p->hcoeff, sizeof(p->hcoeff));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
s->last_spatial_decomposition_type = s->spatial_decomposition_type;
|
|
|
|
s->last_qlog = s->qlog;
|
|
|
|
s->last_qbias = s->qbias;
|
|
|
|
s->last_mv_scale = s->mv_scale;
|
|
|
|
s->last_block_max_depth = s->block_max_depth;
|
|
|
|
s->last_spatial_decomposition_count = s->spatial_decomposition_count;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int qscale2qlog(int qscale){
|
|
|
|
return rint(QROOT*log(qscale / (float)FF_QP2LAMBDA)/log(2))
|
|
|
|
+ 61*QROOT/8; ///< 64 > 60
|
|
|
|
}
|
|
|
|
|
|
|
|
static int ratecontrol_1pass(SnowContext *s, AVFrame *pict)
|
|
|
|
{
|
|
|
|
/* Estimate the frame's complexity as a sum of weighted dwt coefficients.
|
|
|
|
* FIXME we know exact mv bits at this point,
|
|
|
|
* but ratecontrol isn't set up to include them. */
|
|
|
|
uint32_t coef_sum= 0;
|
|
|
|
int level, orientation, delta_qlog;
|
|
|
|
|
|
|
|
for(level=0; level<s->spatial_decomposition_count; level++){
|
|
|
|
for(orientation=level ? 1 : 0; orientation<4; orientation++){
|
|
|
|
SubBand *b= &s->plane[0].band[level][orientation];
|
|
|
|
IDWTELEM *buf= b->ibuf;
|
|
|
|
const int w= b->width;
|
|
|
|
const int h= b->height;
|
|
|
|
const int stride= b->stride;
|
|
|
|
const int qlog= av_clip(2*QROOT + b->qlog, 0, QROOT*16);
|
2012-02-15 10:43:58 +00:00
|
|
|
const int qmul= ff_qexp[qlog&(QROOT-1)]<<(qlog>>QSHIFT);
|
2011-11-02 17:10:40 +00:00
|
|
|
const int qdiv= (1<<16)/qmul;
|
|
|
|
int x, y;
|
|
|
|
//FIXME this is ugly
|
|
|
|
for(y=0; y<h; y++)
|
|
|
|
for(x=0; x<w; x++)
|
|
|
|
buf[x+y*stride]= b->buf[x+y*stride];
|
|
|
|
if(orientation==0)
|
|
|
|
decorrelate(s, b, buf, stride, 1, 0);
|
|
|
|
for(y=0; y<h; y++)
|
|
|
|
for(x=0; x<w; x++)
|
|
|
|
coef_sum+= abs(buf[x+y*stride]) * qdiv >> 16;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* ugly, ratecontrol just takes a sqrt again */
|
|
|
|
coef_sum = (uint64_t)coef_sum * coef_sum >> 16;
|
|
|
|
assert(coef_sum < INT_MAX);
|
|
|
|
|
|
|
|
if(pict->pict_type == AV_PICTURE_TYPE_I){
|
|
|
|
s->m.current_picture.mb_var_sum= coef_sum;
|
|
|
|
s->m.current_picture.mc_mb_var_sum= 0;
|
|
|
|
}else{
|
|
|
|
s->m.current_picture.mc_mb_var_sum= coef_sum;
|
|
|
|
s->m.current_picture.mb_var_sum= 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
pict->quality= ff_rate_estimate_qscale(&s->m, 1);
|
|
|
|
if (pict->quality < 0)
|
|
|
|
return INT_MIN;
|
|
|
|
s->lambda= pict->quality * 3/2;
|
|
|
|
delta_qlog= qscale2qlog(pict->quality) - s->qlog;
|
|
|
|
s->qlog+= delta_qlog;
|
|
|
|
return delta_qlog;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void calculate_visual_weight(SnowContext *s, Plane *p){
|
|
|
|
int width = p->width;
|
|
|
|
int height= p->height;
|
|
|
|
int level, orientation, x, y;
|
|
|
|
|
|
|
|
for(level=0; level<s->spatial_decomposition_count; level++){
|
|
|
|
for(orientation=level ? 1 : 0; orientation<4; orientation++){
|
|
|
|
SubBand *b= &p->band[level][orientation];
|
|
|
|
IDWTELEM *ibuf= b->ibuf;
|
|
|
|
int64_t error=0;
|
|
|
|
|
|
|
|
memset(s->spatial_idwt_buffer, 0, sizeof(*s->spatial_idwt_buffer)*width*height);
|
|
|
|
ibuf[b->width/2 + b->height/2*b->stride]= 256*16;
|
|
|
|
ff_spatial_idwt(s->spatial_idwt_buffer, width, height, width, s->spatial_decomposition_type, s->spatial_decomposition_count);
|
|
|
|
for(y=0; y<height; y++){
|
|
|
|
for(x=0; x<width; x++){
|
|
|
|
int64_t d= s->spatial_idwt_buffer[x + y*width]*16;
|
|
|
|
error += d*d;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
b->qlog= (int)(log(352256.0/sqrt(error)) / log(pow(2.0, 1.0/QROOT))+0.5);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data){
|
|
|
|
SnowContext *s = avctx->priv_data;
|
|
|
|
RangeCoder * const c= &s->c;
|
|
|
|
AVFrame *pict = data;
|
|
|
|
const int width= s->avctx->width;
|
|
|
|
const int height= s->avctx->height;
|
|
|
|
int level, orientation, plane_index, i, y;
|
|
|
|
uint8_t rc_header_bak[sizeof(s->header_state)];
|
|
|
|
uint8_t rc_block_bak[sizeof(s->block_state)];
|
|
|
|
|
|
|
|
ff_init_range_encoder(c, buf, buf_size);
|
|
|
|
ff_build_rac_states(c, 0.05*(1LL<<32), 256-8);
|
|
|
|
|
|
|
|
for(i=0; i<3; i++){
|
|
|
|
int shift= !!i;
|
|
|
|
for(y=0; y<(height>>shift); y++)
|
|
|
|
memcpy(&s->input_picture.data[i][y * s->input_picture.linesize[i]],
|
|
|
|
&pict->data[i][y * pict->linesize[i]],
|
|
|
|
width>>shift);
|
|
|
|
}
|
|
|
|
s->new_picture = *pict;
|
|
|
|
|
|
|
|
s->m.picture_number= avctx->frame_number;
|
|
|
|
if(avctx->flags&CODEC_FLAG_PASS2){
|
|
|
|
s->m.pict_type =
|
|
|
|
pict->pict_type= s->m.rc_context.entry[avctx->frame_number].new_pict_type;
|
|
|
|
s->keyframe= pict->pict_type==AV_PICTURE_TYPE_I;
|
|
|
|
if(!(avctx->flags&CODEC_FLAG_QSCALE)) {
|
|
|
|
pict->quality= ff_rate_estimate_qscale(&s->m, 0);
|
|
|
|
if (pict->quality < 0)
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
}else{
|
|
|
|
s->keyframe= avctx->gop_size==0 || avctx->frame_number % avctx->gop_size == 0;
|
|
|
|
s->m.pict_type=
|
|
|
|
pict->pict_type= s->keyframe ? AV_PICTURE_TYPE_I : AV_PICTURE_TYPE_P;
|
|
|
|
}
|
|
|
|
|
|
|
|
if(s->pass1_rc && avctx->frame_number == 0)
|
|
|
|
pict->quality= 2*FF_QP2LAMBDA;
|
|
|
|
if(pict->quality){
|
|
|
|
s->qlog= qscale2qlog(pict->quality);
|
|
|
|
s->lambda = pict->quality * 3/2;
|
|
|
|
}
|
|
|
|
if(s->qlog < 0 || (!pict->quality && (avctx->flags & CODEC_FLAG_QSCALE))){
|
|
|
|
s->qlog= LOSSLESS_QLOG;
|
|
|
|
s->lambda = 0;
|
|
|
|
}//else keep previous frame's qlog until after motion estimation
|
|
|
|
|
|
|
|
ff_snow_frame_start(s);
|
|
|
|
|
|
|
|
s->m.current_picture_ptr= &s->m.current_picture;
|
|
|
|
s->m.last_picture.f.pts = s->m.current_picture.f.pts;
|
|
|
|
s->m.current_picture.f.pts = pict->pts;
|
|
|
|
if(pict->pict_type == AV_PICTURE_TYPE_P){
|
|
|
|
int block_width = (width +15)>>4;
|
|
|
|
int block_height= (height+15)>>4;
|
|
|
|
int stride= s->current_picture.linesize[0];
|
|
|
|
|
|
|
|
assert(s->current_picture.data[0]);
|
|
|
|
assert(s->last_picture[0].data[0]);
|
|
|
|
|
|
|
|
s->m.avctx= s->avctx;
|
|
|
|
s->m.current_picture.f.data[0] = s->current_picture.data[0];
|
|
|
|
s->m. last_picture.f.data[0] = s->last_picture[0].data[0];
|
|
|
|
s->m. new_picture.f.data[0] = s-> input_picture.data[0];
|
|
|
|
s->m. last_picture_ptr= &s->m. last_picture;
|
|
|
|
s->m.linesize=
|
|
|
|
s->m. last_picture.f.linesize[0] =
|
|
|
|
s->m. new_picture.f.linesize[0] =
|
|
|
|
s->m.current_picture.f.linesize[0] = stride;
|
|
|
|
s->m.uvlinesize= s->current_picture.linesize[1];
|
|
|
|
s->m.width = width;
|
|
|
|
s->m.height= height;
|
|
|
|
s->m.mb_width = block_width;
|
|
|
|
s->m.mb_height= block_height;
|
|
|
|
s->m.mb_stride= s->m.mb_width+1;
|
|
|
|
s->m.b8_stride= 2*s->m.mb_width+1;
|
|
|
|
s->m.f_code=1;
|
|
|
|
s->m.pict_type= pict->pict_type;
|
|
|
|
s->m.me_method= s->avctx->me_method;
|
|
|
|
s->m.me.scene_change_score=0;
|
|
|
|
s->m.flags= s->avctx->flags;
|
|
|
|
s->m.quarter_sample= (s->avctx->flags & CODEC_FLAG_QPEL)!=0;
|
|
|
|
s->m.out_format= FMT_H263;
|
|
|
|
s->m.unrestricted_mv= 1;
|
|
|
|
|
|
|
|
s->m.lambda = s->lambda;
|
|
|
|
s->m.qscale= (s->m.lambda*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
|
|
|
|
s->lambda2= s->m.lambda2= (s->m.lambda*s->m.lambda + FF_LAMBDA_SCALE/2) >> FF_LAMBDA_SHIFT;
|
|
|
|
|
|
|
|
s->m.dsp= s->dsp; //move
|
|
|
|
ff_init_me(&s->m);
|
|
|
|
s->dsp= s->m.dsp;
|
|
|
|
}
|
|
|
|
|
|
|
|
if(s->pass1_rc){
|
|
|
|
memcpy(rc_header_bak, s->header_state, sizeof(s->header_state));
|
|
|
|
memcpy(rc_block_bak, s->block_state, sizeof(s->block_state));
|
|
|
|
}
|
|
|
|
|
|
|
|
redo_frame:
|
|
|
|
|
|
|
|
if(pict->pict_type == AV_PICTURE_TYPE_I)
|
|
|
|
s->spatial_decomposition_count= 5;
|
|
|
|
else
|
|
|
|
s->spatial_decomposition_count= 5;
|
|
|
|
|
|
|
|
s->m.pict_type = pict->pict_type;
|
|
|
|
s->qbias= pict->pict_type == AV_PICTURE_TYPE_P ? 2 : 0;
|
|
|
|
|
|
|
|
ff_snow_common_init_after_header(avctx);
|
|
|
|
|
|
|
|
if(s->last_spatial_decomposition_count != s->spatial_decomposition_count){
|
|
|
|
for(plane_index=0; plane_index<3; plane_index++){
|
|
|
|
calculate_visual_weight(s, &s->plane[plane_index]);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
encode_header(s);
|
|
|
|
s->m.misc_bits = 8*(s->c.bytestream - s->c.bytestream_start);
|
|
|
|
encode_blocks(s, 1);
|
|
|
|
s->m.mv_bits = 8*(s->c.bytestream - s->c.bytestream_start) - s->m.misc_bits;
|
|
|
|
|
|
|
|
for(plane_index=0; plane_index<3; plane_index++){
|
|
|
|
Plane *p= &s->plane[plane_index];
|
|
|
|
int w= p->width;
|
|
|
|
int h= p->height;
|
|
|
|
int x, y;
|
|
|
|
// int bits= put_bits_count(&s->c.pb);
|
|
|
|
|
|
|
|
if (!s->memc_only) {
|
|
|
|
//FIXME optimize
|
|
|
|
if(pict->data[plane_index]) //FIXME gray hack
|
|
|
|
for(y=0; y<h; y++){
|
|
|
|
for(x=0; x<w; x++){
|
|
|
|
s->spatial_idwt_buffer[y*w + x]= pict->data[plane_index][y*pict->linesize[plane_index] + x]<<FRAC_BITS;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
predict_plane(s, s->spatial_idwt_buffer, plane_index, 0);
|
|
|
|
|
|
|
|
if( plane_index==0
|
|
|
|
&& pict->pict_type == AV_PICTURE_TYPE_P
|
|
|
|
&& !(avctx->flags&CODEC_FLAG_PASS2)
|
|
|
|
&& s->m.me.scene_change_score > s->avctx->scenechange_threshold){
|
|
|
|
ff_init_range_encoder(c, buf, buf_size);
|
|
|
|
ff_build_rac_states(c, 0.05*(1LL<<32), 256-8);
|
|
|
|
pict->pict_type= AV_PICTURE_TYPE_I;
|
|
|
|
s->keyframe=1;
|
|
|
|
s->current_picture.key_frame=1;
|
|
|
|
goto redo_frame;
|
|
|
|
}
|
|
|
|
|
|
|
|
if(s->qlog == LOSSLESS_QLOG){
|
|
|
|
for(y=0; y<h; y++){
|
|
|
|
for(x=0; x<w; x++){
|
|
|
|
s->spatial_dwt_buffer[y*w + x]= (s->spatial_idwt_buffer[y*w + x] + (1<<(FRAC_BITS-1))-1)>>FRAC_BITS;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}else{
|
|
|
|
for(y=0; y<h; y++){
|
|
|
|
for(x=0; x<w; x++){
|
|
|
|
s->spatial_dwt_buffer[y*w + x]=s->spatial_idwt_buffer[y*w + x]<<ENCODER_EXTRA_BITS;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* if(QUANTIZE2)
|
|
|
|
dwt_quantize(s, p, s->spatial_dwt_buffer, w, h, w, s->spatial_decomposition_type);
|
|
|
|
else*/
|
|
|
|
ff_spatial_dwt(s->spatial_dwt_buffer, w, h, w, s->spatial_decomposition_type, s->spatial_decomposition_count);
|
|
|
|
|
|
|
|
if(s->pass1_rc && plane_index==0){
|
|
|
|
int delta_qlog = ratecontrol_1pass(s, pict);
|
|
|
|
if (delta_qlog <= INT_MIN)
|
|
|
|
return -1;
|
|
|
|
if(delta_qlog){
|
|
|
|
//reordering qlog in the bitstream would eliminate this reset
|
|
|
|
ff_init_range_encoder(c, buf, buf_size);
|
|
|
|
memcpy(s->header_state, rc_header_bak, sizeof(s->header_state));
|
|
|
|
memcpy(s->block_state, rc_block_bak, sizeof(s->block_state));
|
|
|
|
encode_header(s);
|
|
|
|
encode_blocks(s, 0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
for(level=0; level<s->spatial_decomposition_count; level++){
|
|
|
|
for(orientation=level ? 1 : 0; orientation<4; orientation++){
|
|
|
|
SubBand *b= &p->band[level][orientation];
|
|
|
|
|
|
|
|
if(!QUANTIZE2)
|
|
|
|
quantize(s, b, b->ibuf, b->buf, b->stride, s->qbias);
|
|
|
|
if(orientation==0)
|
|
|
|
decorrelate(s, b, b->ibuf, b->stride, pict->pict_type == AV_PICTURE_TYPE_P, 0);
|
|
|
|
encode_subband(s, b, b->ibuf, b->parent ? b->parent->ibuf : NULL, b->stride, orientation);
|
|
|
|
assert(b->parent==NULL || b->parent->stride == b->stride*2);
|
|
|
|
if(orientation==0)
|
|
|
|
correlate(s, b, b->ibuf, b->stride, 1, 0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
for(level=0; level<s->spatial_decomposition_count; level++){
|
|
|
|
for(orientation=level ? 1 : 0; orientation<4; orientation++){
|
|
|
|
SubBand *b= &p->band[level][orientation];
|
|
|
|
|
|
|
|
dequantize(s, b, b->ibuf, b->stride);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
ff_spatial_idwt(s->spatial_idwt_buffer, w, h, w, s->spatial_decomposition_type, s->spatial_decomposition_count);
|
|
|
|
if(s->qlog == LOSSLESS_QLOG){
|
|
|
|
for(y=0; y<h; y++){
|
|
|
|
for(x=0; x<w; x++){
|
|
|
|
s->spatial_idwt_buffer[y*w + x]<<=FRAC_BITS;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
predict_plane(s, s->spatial_idwt_buffer, plane_index, 1);
|
|
|
|
}else{
|
|
|
|
//ME/MC only
|
|
|
|
if(pict->pict_type == AV_PICTURE_TYPE_I){
|
|
|
|
for(y=0; y<h; y++){
|
|
|
|
for(x=0; x<w; x++){
|
|
|
|
s->current_picture.data[plane_index][y*s->current_picture.linesize[plane_index] + x]=
|
|
|
|
pict->data[plane_index][y*pict->linesize[plane_index] + x];
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}else{
|
|
|
|
memset(s->spatial_idwt_buffer, 0, sizeof(IDWTELEM)*w*h);
|
|
|
|
predict_plane(s, s->spatial_idwt_buffer, plane_index, 1);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if(s->avctx->flags&CODEC_FLAG_PSNR){
|
|
|
|
int64_t error= 0;
|
|
|
|
|
|
|
|
if(pict->data[plane_index]) //FIXME gray hack
|
|
|
|
for(y=0; y<h; y++){
|
|
|
|
for(x=0; x<w; x++){
|
|
|
|
int d= s->current_picture.data[plane_index][y*s->current_picture.linesize[plane_index] + x] - pict->data[plane_index][y*pict->linesize[plane_index] + x];
|
|
|
|
error += d*d;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
s->avctx->error[plane_index] += error;
|
|
|
|
s->current_picture.error[plane_index] = error;
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
update_last_header_values(s);
|
|
|
|
|
|
|
|
ff_snow_release_buffer(avctx);
|
|
|
|
|
|
|
|
s->current_picture.coded_picture_number = avctx->frame_number;
|
|
|
|
s->current_picture.pict_type = pict->pict_type;
|
|
|
|
s->current_picture.quality = pict->quality;
|
|
|
|
s->m.frame_bits = 8*(s->c.bytestream - s->c.bytestream_start);
|
|
|
|
s->m.p_tex_bits = s->m.frame_bits - s->m.misc_bits - s->m.mv_bits;
|
|
|
|
s->m.current_picture.f.display_picture_number =
|
|
|
|
s->m.current_picture.f.coded_picture_number = avctx->frame_number;
|
|
|
|
s->m.current_picture.f.quality = pict->quality;
|
|
|
|
s->m.total_bits += 8*(s->c.bytestream - s->c.bytestream_start);
|
|
|
|
if(s->pass1_rc)
|
|
|
|
if (ff_rate_estimate_qscale(&s->m, 0) < 0)
|
|
|
|
return -1;
|
|
|
|
if(avctx->flags&CODEC_FLAG_PASS1)
|
|
|
|
ff_write_pass1_stats(&s->m);
|
|
|
|
s->m.last_pict_type = s->m.pict_type;
|
|
|
|
avctx->frame_bits = s->m.frame_bits;
|
|
|
|
avctx->mv_bits = s->m.mv_bits;
|
|
|
|
avctx->misc_bits = s->m.misc_bits;
|
|
|
|
avctx->p_tex_bits = s->m.p_tex_bits;
|
|
|
|
|
|
|
|
emms_c();
|
|
|
|
|
|
|
|
return ff_rac_terminate(c);
|
|
|
|
}
|
|
|
|
|
|
|
|
static av_cold int encode_end(AVCodecContext *avctx)
|
|
|
|
{
|
|
|
|
SnowContext *s = avctx->priv_data;
|
|
|
|
|
|
|
|
ff_snow_common_end(s);
|
|
|
|
if (s->input_picture.data[0])
|
|
|
|
avctx->release_buffer(avctx, &s->input_picture);
|
|
|
|
av_free(avctx->stats_out);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
#define OFFSET(x) offsetof(SnowContext, x)
|
|
|
|
#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
|
|
|
|
static const AVOption options[] = {
|
|
|
|
{ "memc_only", "Only do ME/MC (I frames -> ref, P frame -> ME+MC).", OFFSET(memc_only), AV_OPT_TYPE_INT, { 0 }, 0, 1, VE },
|
|
|
|
{ NULL },
|
|
|
|
};
|
|
|
|
|
|
|
|
static const AVClass snowenc_class = {
|
|
|
|
.class_name = "snow encoder",
|
|
|
|
.item_name = av_default_item_name,
|
|
|
|
.option = options,
|
|
|
|
.version = LIBAVUTIL_VERSION_INT,
|
|
|
|
};
|
|
|
|
|
|
|
|
AVCodec ff_snow_encoder = {
|
|
|
|
.name = "snow",
|
|
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
|
|
.id = CODEC_ID_SNOW,
|
|
|
|
.priv_data_size = sizeof(SnowContext),
|
|
|
|
.init = encode_init,
|
|
|
|
.encode = encode_frame,
|
|
|
|
.close = encode_end,
|
|
|
|
.long_name = NULL_IF_CONFIG_SMALL("Snow"),
|
|
|
|
.priv_class = &snowenc_class,
|
|
|
|
};
|
|
|
|
#endif
|