diff options
Diffstat (limited to 'ffmpeg/libavcodec/snowenc.c')
| -rw-r--r-- | ffmpeg/libavcodec/snowenc.c | 2018 |
1 files changed, 0 insertions, 2018 deletions
diff --git a/ffmpeg/libavcodec/snowenc.c b/ffmpeg/libavcodec/snowenc.c deleted file mode 100644 index 5177285..0000000 --- a/ffmpeg/libavcodec/snowenc.c +++ /dev/null @@ -1,2018 +0,0 @@ -/* - * Copyright (C) 2004 Michael Niedermayer <michaelni@gmx.at> - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include "libavutil/intmath.h" -#include "libavutil/log.h" -#include "libavutil/opt.h" -#include "avcodec.h" -#include "dsputil.h" -#include "internal.h" -#include "snow_dwt.h" -#include "snow.h" - -#include "rangecoder.h" -#include "mathops.h" - -#include "mpegvideo.h" -#include "h263.h" - -static av_cold int encode_init(AVCodecContext *avctx) -{ - SnowContext *s = avctx->priv_data; - int plane_index, ret; - - if(avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL){ - av_log(avctx, AV_LOG_ERROR, "This codec is under development, files encoded with it may not be decodable with future versions!!!\n" - "Use vstrict=-2 / -strict -2 to use it anyway.\n"); - return -1; - } - - if(avctx->prediction_method == DWT_97 - && (avctx->flags & CODEC_FLAG_QSCALE) - && avctx->global_quality == 0){ - av_log(avctx, AV_LOG_ERROR, "The 9/7 wavelet is incompatible with lossless mode.\n"); - return -1; - } - - s->spatial_decomposition_type= avctx->prediction_method; //FIXME add decorrelator type r transform_type - - s->mv_scale = (avctx->flags & CODEC_FLAG_QPEL) ? 2 : 4; - s->block_max_depth= (avctx->flags & CODEC_FLAG_4MV ) ? 1 : 0; - - for(plane_index=0; plane_index<3; plane_index++){ - s->plane[plane_index].diag_mc= 1; - s->plane[plane_index].htaps= 6; - s->plane[plane_index].hcoeff[0]= 40; - s->plane[plane_index].hcoeff[1]= -10; - s->plane[plane_index].hcoeff[2]= 2; - s->plane[plane_index].fast_mc= 1; - } - - if ((ret = ff_snow_common_init(avctx)) < 0) { - ff_snow_common_end(avctx->priv_data); - return ret; - } - ff_snow_alloc_blocks(s); - - s->version=0; - - s->m.avctx = avctx; - s->m.flags = avctx->flags; - s->m.bit_rate= avctx->bit_rate; - - s->m.me.temp = - s->m.me.scratchpad= av_mallocz((avctx->width+64)*2*16*2*sizeof(uint8_t)); - s->m.me.map = av_mallocz(ME_MAP_SIZE*sizeof(uint32_t)); - s->m.me.score_map = av_mallocz(ME_MAP_SIZE*sizeof(uint32_t)); - s->m.obmc_scratchpad= av_mallocz(MB_SIZE*MB_SIZE*12*sizeof(uint32_t)); - if (!s->m.me.scratchpad || !s->m.me.map || !s->m.me.score_map || !s->m.obmc_scratchpad) - return AVERROR(ENOMEM); - - ff_h263_encode_init(&s->m); //mv_penalty - - s->max_ref_frames = FFMAX(FFMIN(avctx->refs, MAX_REF_FRAMES), 1); - - if(avctx->flags&CODEC_FLAG_PASS1){ - if(!avctx->stats_out) - avctx->stats_out = av_mallocz(256); - - if (!avctx->stats_out) - return AVERROR(ENOMEM); - } - if((avctx->flags&CODEC_FLAG_PASS2) || !(avctx->flags&CODEC_FLAG_QSCALE)){ - if(ff_rate_control_init(&s->m) < 0) - return -1; - } - s->pass1_rc= !(avctx->flags & (CODEC_FLAG_QSCALE|CODEC_FLAG_PASS2)); - - switch(avctx->pix_fmt){ - case AV_PIX_FMT_YUV444P: -// case AV_PIX_FMT_YUV422P: - case AV_PIX_FMT_YUV420P: -// case AV_PIX_FMT_YUV411P: - case AV_PIX_FMT_YUV410P: - s->nb_planes = 3; - s->colorspace_type= 0; - break; - case AV_PIX_FMT_GRAY8: - s->nb_planes = 1; - s->colorspace_type = 1; - break; -/* case AV_PIX_FMT_RGB32: - s->colorspace= 1; - break;*/ - default: - av_log(avctx, AV_LOG_ERROR, "pixel format not supported\n"); - return -1; - } - avcodec_get_chroma_sub_sample(avctx->pix_fmt, &s->chroma_h_shift, &s->chroma_v_shift); - - ff_set_cmp(&s->dsp, s->dsp.me_cmp, s->avctx->me_cmp); - ff_set_cmp(&s->dsp, s->dsp.me_sub_cmp, s->avctx->me_sub_cmp); - - s->input_picture = av_frame_alloc(); - if (!s->input_picture) - return AVERROR(ENOMEM); - if ((ret = ff_get_buffer(s->avctx, s->input_picture, AV_GET_BUFFER_FLAG_REF)) < 0) - return ret; - - if(s->avctx->me_method == ME_ITER){ - int i; - int size= s->b_width * s->b_height << 2*s->block_max_depth; - for(i=0; i<s->max_ref_frames; i++){ - s->ref_mvs[i]= av_mallocz(size*sizeof(int16_t[2])); - s->ref_scores[i]= av_mallocz(size*sizeof(uint32_t)); - if (!s->ref_mvs[i] || !s->ref_scores[i]) - return AVERROR(ENOMEM); - } - } - - return 0; -} - -//near copy & paste from dsputil, FIXME -static int pix_sum(uint8_t * pix, int line_size, int w, int h) -{ - int s, i, j; - - s = 0; - for (i = 0; i < h; i++) { - for (j = 0; j < w; j++) { - s += pix[0]; - pix ++; - } - pix += line_size - w; - } - return s; -} - -//near copy & paste from dsputil, FIXME -static int pix_norm1(uint8_t * pix, int line_size, int w) -{ - int s, i, j; - uint32_t *sq = ff_squareTbl + 256; - - s = 0; - for (i = 0; i < w; i++) { - for (j = 0; j < w; j ++) { - s += sq[pix[0]]; - pix ++; - } - pix += line_size - w; - } - return s; -} - -static inline int get_penalty_factor(int lambda, int lambda2, int type){ - switch(type&0xFF){ - default: - case FF_CMP_SAD: - return lambda>>FF_LAMBDA_SHIFT; - case FF_CMP_DCT: - return (3*lambda)>>(FF_LAMBDA_SHIFT+1); - case FF_CMP_W53: - return (4*lambda)>>(FF_LAMBDA_SHIFT); - case FF_CMP_W97: - return (2*lambda)>>(FF_LAMBDA_SHIFT); - case FF_CMP_SATD: - case FF_CMP_DCT264: - return (2*lambda)>>FF_LAMBDA_SHIFT; - case FF_CMP_RD: - case FF_CMP_PSNR: - case FF_CMP_SSE: - case FF_CMP_NSSE: - return lambda2>>FF_LAMBDA_SHIFT; - case FF_CMP_BIT: - return 1; - } -} - -//FIXME copy&paste -#define P_LEFT P[1] -#define P_TOP P[2] -#define P_TOPRIGHT P[3] -#define P_MEDIAN P[4] -#define P_MV1 P[9] -#define FLAG_QPEL 1 //must be 1 - -static int encode_q_branch(SnowContext *s, int level, int x, int y){ - uint8_t p_buffer[1024]; - uint8_t i_buffer[1024]; - uint8_t p_state[sizeof(s->block_state)]; - uint8_t i_state[sizeof(s->block_state)]; - RangeCoder pc, ic; - uint8_t *pbbak= s->c.bytestream; - uint8_t *pbbak_start= s->c.bytestream_start; - int score, score2, iscore, i_len, p_len, block_s, sum, base_bits; - const int w= s->b_width << s->block_max_depth; - const int h= s->b_height << s->block_max_depth; - const int rem_depth= s->block_max_depth - level; - const int index= (x + y*w) << rem_depth; - const int block_w= 1<<(LOG2_MB_SIZE - level); - int trx= (x+1)<<rem_depth; - int try= (y+1)<<rem_depth; - const BlockNode *left = x ? &s->block[index-1] : &null_block; - const BlockNode *top = y ? &s->block[index-w] : &null_block; - const BlockNode *right = trx<w ? &s->block[index+1] : &null_block; - const BlockNode *bottom= try<h ? &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 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*block_w)>>s->chroma_h_shift) + ((y*uvstride*block_w)>>s->chroma_v_shift), - s->input_picture->data[2] + ((x*block_w)>>s->chroma_h_shift) + ((y*uvstride*block_w)>>s->chroma_v_shift)}; - 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; - - av_assert0(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; - - av_assert1(c-> stride == stride); - av_assert1(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); - - av_assert2(ref_mx >= c->xmin); - av_assert2(ref_mx <= c->xmax); - av_assert2(ref_my >= c->ymin); - av_assert2(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, 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; - - if (s->nb_planes > 2) { - block_s= block_w*block_w>>(s->chroma_h_shift + s->chroma_v_shift); - sum = pix_sum(current_data[1], uvstride, block_w>>s->chroma_h_shift, block_w>>s->chroma_v_shift); - 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>>s->chroma_h_shift, block_w>>s->chroma_v_shift); - 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; - }else - cb = cr = 0; - - 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); - if (s->nb_planes > 2) { - 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); - av_assert1(iscore < 255*255*256 + s->lambda2*10); - av_assert1(iscore >= 0); - av_assert1(l>=0 && l<=255); - av_assert1(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); - if (s->nb_planes > 2) { - 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>>s->chroma_h_shift : block_size; - const int block_h = plane_index ? block_size>>s->chroma_v_shift : block_size; - const uint8_t *obmc = plane_index ? ff_obmc_tab[s->block_max_depth+s->chroma_h_shift] : ff_obmc_tab[s->block_max_depth]; - const int obmc_stride= plane_index ? (2*block_size)>>s->chroma_h_shift : 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; - - av_assert2(s->chroma_h_shift == s->chroma_v_shift); //obmc stuff above - - 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_h*mb_y2 + block_h/2; - - add_yblock(s, 0, NULL, dst + (i&1)*block_w + (i>>1)*obmc_stride*block_h, NULL, obmc, - x, y, block_w, block_h, 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_h); 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_h*mb_y - block_h/2))*obmc_stride; - int obmc_v= obmc[index]; - int d; - if(y<0) obmc_v += obmc[index + block_h*obmc_stride]; - if(x<0) obmc_v += obmc[index + block_w]; - if(y+block_h>h) obmc_v += obmc[index - block_h*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( ROUNDED_DIV(ab<<LOG2_OBMC_MAX, 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, uint8_t (*obmc_edged)[MB_SIZE * 2]){ - Plane *p= &s->plane[plane_index]; - const int block_size = MB_SIZE >> s->block_max_depth; - const int block_w = plane_index ? block_size>>s->chroma_h_shift : block_size; - const int block_h = plane_index ? block_size>>s->chroma_v_shift : block_size; - const int obmc_stride= plane_index ? (2*block_size)>>s->chroma_h_shift : 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 = s->emu_edge_buffer; - 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_h*mb_y - block_h/2; - int x0= FFMAX(0,-sx); - int y0= FFMAX(0,-sy); - int x1= FFMIN(block_w*2, w-sx); - int y1= FFMIN(block_h*2, h-sy); - int i,x,y; - - av_assert2(s->chroma_h_shift == s->chroma_v_shift); //obmc and square assumtions below chckinhg only block_w - - ff_snow_pred_block(s, cur, tmp, ref_stride, sx, sy, block_w*2, block_h*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]; - 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_h; - else - y0 = block_h; - 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{ - av_assert2(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>>s->chroma_h_shift : block_size; - const int block_h = plane_index ? block_size>>s->chroma_v_shift : block_size; - const uint8_t *obmc = plane_index ? ff_obmc_tab[s->block_max_depth+s->chroma_h_shift] : ff_obmc_tab[s->block_max_depth]; - const int obmc_stride= plane_index ? (2*block_size)>>s->chroma_h_shift : 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); - - av_assert2(s->chroma_h_shift == s->chroma_v_shift); //obmc and square assumtions below - - 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_h*mb_y2 + block_h/2; - - add_yblock(s, 0, NULL, zero_dst, dst, obmc, - x, y, block_w, block_h, 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_h; y2++) - memcpy(dst + x + y2*ref_stride, src + x + y2*ref_stride, block_w); - if(x<0){ - for(y2= y; y2<y+block_h; y2++) - memcpy(dst + x + y2*ref_stride, src + x + y2*ref_stride, -x); - } - if(x+block_w > w){ - for(y2= y; y2<y+block_h; y2++) - memcpy(dst + w + y2*ref_stride, src + w + y2*ref_stride, x+block_w - w); - } - - av_assert1(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_h); - } - - 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, const IDWTELEM *src, const 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 = s->run_buffer; - 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); - av_assert2(v); - }else{ - run--; - av_assert2(!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); - put_rac(&s->c, &b->state[0][16 + 1 + 3 + ff_quant3bA[l2&0xFF] + 3*ff_quant3bA[t2&0xFF]], v<0); - } - } - } - } - return 0; -} - -static int encode_subband(SnowContext *s, SubBand *b, const IDWTELEM *src, const 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, uint8_t (*obmc_edged)[MB_SIZE * 2], 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; - unsigned value; - int rd, index; - - av_assert2(mb_x>=0 && mb_y>=0); - av_assert2(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, uint8_t (*obmc_edged)[MB_SIZE * 2], 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]; - unsigned value; - int rd, index; - - /* We don't initialize backup[] during variable declaration, because - * that fails to compile on MSVC: "cannot convert from 'BlockNode' to - * 'int16_t'". */ - backup[0] = block[0]; - backup[1] = block[1]; - backup[2] = block[b_stride]; - backup[3] = block[b_stride + 1]; - - av_assert2(mb_x>=0 && mb_y>=0); - av_assert2(mb_x<b_stride); - av_assert2(((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[MB_SIZE * 2][MB_SIZE * 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; - for (y = 0; y < b_w * 2; y++) - memcpy(obmc_edged[y], ff_obmc_tab[s->block_max_depth] + y * b_w * 2, b_w * 2); - 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 block_h= MB_SIZE >> s->block_max_depth; - const int sx= block_w*mb_x - block_w/2; - const int sy= block_h*mb_y - block_h/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_h*2; y++) - memcpy(dst + sx + y*stride, src + sx + y*stride, block_w*2); - if(sx<0){ - for(y=sy; y<sy+block_h*2; y++) - memcpy(dst + sx + y*stride, src + sx + y*stride, -sx); - } - if(sx+block_w*2 > w){ - for(y=sy; y<sy+block_h*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 < s->nb_planes; 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); - const int qmul= ff_qexp[qlog&(QROOT-1)]<<((qlog>>QSHIFT) + ENCODER_EXTRA_BITS); - 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); - const int qmul= ff_qexp[qlog&(QROOT-1)]<<(qlog>>QSHIFT); - 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<FFMIN(s->nb_planes, 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); - if (s->nb_planes > 2) { - 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<FFMIN(s->nb_planes, 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<FFMIN(s->nb_planes, 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*log2(qscale / (float)FF_QP2LAMBDA)) - + 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); - const int qmul= ff_qexp[qlog&(QROOT-1)]<<(qlog>>QSHIFT); - 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; - av_assert0(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, s->temp_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, AVPacket *pkt, - AVFrame *pict, int *got_packet) -{ - SnowContext *s = avctx->priv_data; - RangeCoder * const c= &s->c; - AVFrame *pic = pict; - const int width= s->avctx->width; - const int height= s->avctx->height; - int level, orientation, plane_index, i, y, ret; - uint8_t rc_header_bak[sizeof(s->header_state)]; - uint8_t rc_block_bak[sizeof(s->block_state)]; - - if ((ret = ff_alloc_packet2(avctx, pkt, s->b_width*s->b_height*MB_SIZE*MB_SIZE*3 + FF_MIN_BUFFER_SIZE)) < 0) - return ret; - - ff_init_range_encoder(c, pkt->data, pkt->size); - ff_build_rac_states(c, 0.05*(1LL<<32), 256-8); - - for(i=0; i < s->nb_planes; i++){ - int hshift= i ? s->chroma_h_shift : 0; - int vshift= i ? s->chroma_v_shift : 0; - for(y=0; y<(height>>vshift); y++) - memcpy(&s->input_picture->data[i][y * s->input_picture->linesize[i]], - &pict->data[i][y * pict->linesize[i]], - width>>hshift); - s->dsp.draw_edges(s->input_picture->data[i], s->input_picture->linesize[i], - width >> hshift, height >> vshift, - EDGE_WIDTH >> hshift, EDGE_WIDTH >> vshift, - EDGE_TOP | EDGE_BOTTOM); - - } - emms_c(); - s->new_picture = pict; - - s->m.picture_number= avctx->frame_number; - if(avctx->flags&CODEC_FLAG_PASS2){ - s->m.pict_type = pic->pict_type = s->m.rc_context.entry[avctx->frame_number].new_pict_type; - s->keyframe = pic->pict_type == AV_PICTURE_TYPE_I; - if(!(avctx->flags&CODEC_FLAG_QSCALE)) { - pic->quality = ff_rate_estimate_qscale(&s->m, 0); - if (pic->quality < 0) - return -1; - } - }else{ - s->keyframe= avctx->gop_size==0 || avctx->frame_number % avctx->gop_size == 0; - s->m.pict_type = pic->pict_type = s->keyframe ? AV_PICTURE_TYPE_I : AV_PICTURE_TYPE_P; - } - - if(s->pass1_rc && avctx->frame_number == 0) - pic->quality = 2*FF_QP2LAMBDA; - if (pic->quality) { - s->qlog = qscale2qlog(pic->quality); - s->lambda = pic->quality * 3/2; - } - if (s->qlog < 0 || (!pic->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); - avctx->coded_frame= s->current_picture; - - 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(pic->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]; - - av_assert0(s->current_picture->data[0]); - av_assert0(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 = pic->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 - s->m.hdsp = s->hdsp; - ff_init_me(&s->m); - s->hdsp = s->m.hdsp; - 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 (pic->pict_type == AV_PICTURE_TYPE_I) - s->spatial_decomposition_count= 5; - else - s->spatial_decomposition_count= 5; - - while( !(width >>(s->chroma_h_shift + s->spatial_decomposition_count)) - || !(height>>(s->chroma_v_shift + s->spatial_decomposition_count))) - s->spatial_decomposition_count--; - - if (s->spatial_decomposition_count <= 0) { - av_log(avctx, AV_LOG_ERROR, "Resolution too low\n"); - return AVERROR(EINVAL); - } - - s->m.pict_type = pic->pict_type; - s->qbias = pic->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 < s->nb_planes; 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 < s->nb_planes; 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 - && pic->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, pkt->data, pkt->size); - ff_build_rac_states(c, 0.05*(1LL<<32), 256-8); - pic->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; - } - } - } - - ff_spatial_dwt(s->spatial_dwt_buffer, s->temp_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, pic); - if (delta_qlog <= INT_MIN) - return -1; - if(delta_qlog){ - //reordering qlog in the bitstream would eliminate this reset - ff_init_range_encoder(c, pkt->data, pkt->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]; - - quantize(s, b, b->ibuf, b->buf, b->stride, s->qbias); - if(orientation==0) - decorrelate(s, b, b->ibuf, b->stride, pic->pict_type == AV_PICTURE_TYPE_P, 0); - if (!s->no_bitstream) - encode_subband(s, b, b->ibuf, b->parent ? b->parent->ibuf : NULL, b->stride, orientation); - av_assert0(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, s->temp_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(pic->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 = pic->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(); - - pkt->size = ff_rac_terminate(c); - if (avctx->coded_frame->key_frame) - pkt->flags |= AV_PKT_FLAG_KEY; - *got_packet = 1; - - return 0; -} - -static av_cold int encode_end(AVCodecContext *avctx) -{ - SnowContext *s = avctx->priv_data; - - ff_snow_common_end(s); - ff_rate_control_uninit(&s->m); - av_frame_free(&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, { .i64 = 0 }, 0, 1, VE }, - { "no_bitstream", "Skip final bitstream writeout.", OFFSET(no_bitstream), AV_OPT_TYPE_INT, { .i64 = 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", - .long_name = NULL_IF_CONFIG_SMALL("Snow"), - .type = AVMEDIA_TYPE_VIDEO, - .id = AV_CODEC_ID_SNOW, - .priv_data_size = sizeof(SnowContext), - .init = encode_init, - .encode2 = encode_frame, - .close = encode_end, - .pix_fmts = (const enum AVPixelFormat[]){ - AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV444P, - AV_PIX_FMT_GRAY8, - AV_PIX_FMT_NONE - }, - .priv_class = &snowenc_class, -}; - - -#ifdef TEST -#undef malloc -#undef free -#undef printf - -#include "libavutil/lfg.h" -#include "libavutil/mathematics.h" - -int main(void){ -#define width 256 -#define height 256 - int buffer[2][width*height]; - SnowContext s; - int i; - AVLFG prng; - s.spatial_decomposition_count=6; - s.spatial_decomposition_type=1; - - s.temp_dwt_buffer = av_mallocz(width * sizeof(DWTELEM)); - s.temp_idwt_buffer = av_mallocz(width * sizeof(IDWTELEM)); - - av_lfg_init(&prng, 1); - - printf("testing 5/3 DWT\n"); - for(i=0; i<width*height; i++) - buffer[0][i] = buffer[1][i] = av_lfg_get(&prng) % 54321 - 12345; - - ff_spatial_dwt(buffer[0], s.temp_dwt_buffer, width, height, width, s.spatial_decomposition_type, s.spatial_decomposition_count); - ff_spatial_idwt((IDWTELEM*)buffer[0], s.temp_idwt_buffer, width, height, width, s.spatial_decomposition_type, s.spatial_decomposition_count); - - for(i=0; i<width*height; i++) - if(buffer[0][i]!= buffer[1][i]) printf("fsck: %6d %12d %7d\n",i, buffer[0][i], buffer[1][i]); - - printf("testing 9/7 DWT\n"); - s.spatial_decomposition_type=0; - for(i=0; i<width*height; i++) - buffer[0][i] = buffer[1][i] = av_lfg_get(&prng) % 54321 - 12345; - - ff_spatial_dwt(buffer[0], s.temp_dwt_buffer, width, height, width, s.spatial_decomposition_type, s.spatial_decomposition_count); - ff_spatial_idwt((IDWTELEM*)buffer[0], s.temp_idwt_buffer, width, height, width, s.spatial_decomposition_type, s.spatial_decomposition_count); - - for(i=0; i<width*height; i++) - if(FFABS(buffer[0][i] - buffer[1][i])>20) printf("fsck: %6d %12d %7d\n",i, buffer[0][i], buffer[1][i]); - - { - int level, orientation, x, y; - int64_t errors[8][4]; - int64_t g=0; - - memset(errors, 0, sizeof(errors)); - s.spatial_decomposition_count=3; - s.spatial_decomposition_type=0; - for(level=0; level<s.spatial_decomposition_count; level++){ - for(orientation=level ? 1 : 0; orientation<4; orientation++){ - int w= width >> (s.spatial_decomposition_count-level); - int h= height >> (s.spatial_decomposition_count-level); - int stride= width << (s.spatial_decomposition_count-level); - DWTELEM *buf= buffer[0]; - int64_t error=0; - - if(orientation&1) buf+=w; - if(orientation>1) buf+=stride>>1; - - memset(buffer[0], 0, sizeof(int)*width*height); - buf[w/2 + h/2*stride]= 256*256; - ff_spatial_idwt((IDWTELEM*)buffer[0], s.temp_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= buffer[0][x + y*width]; - error += d*d; - if(FFABS(width/2-x)<9 && FFABS(height/2-y)<9 && level==2) printf("%8"PRId64" ", d); - } - if(FFABS(height/2-y)<9 && level==2) printf("\n"); - } - error= (int)(sqrt(error)+0.5); - errors[level][orientation]= error; - if(g) g=av_gcd(g, error); - else g= error; - } - } - printf("static int const visual_weight[][4]={\n"); - for(level=0; level<s.spatial_decomposition_count; level++){ - printf(" {"); - for(orientation=0; orientation<4; orientation++){ - printf("%8"PRId64",", errors[level][orientation]/g); - } - printf("},\n"); - } - printf("};\n"); - { - int level=2; - int w= width >> (s.spatial_decomposition_count-level); - //int h= height >> (s.spatial_decomposition_count-level); - int stride= width << (s.spatial_decomposition_count-level); - DWTELEM *buf= buffer[0]; - int64_t error=0; - - buf+=w; - buf+=stride>>1; - - memset(buffer[0], 0, sizeof(int)*width*height); - for(y=0; y<height; y++){ - for(x=0; x<width; x++){ - int tab[4]={0,2,3,1}; - buffer[0][x+width*y]= 256*256*tab[(x&1) + 2*(y&1)]; - } - } - ff_spatial_dwt(buffer[0], s.temp_dwt_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= buffer[0][x + y*width]; - error += d*d; - if(FFABS(width/2-x)<9 && FFABS(height/2-y)<9) printf("%8"PRId64" ", d); - } - if(FFABS(height/2-y)<9) printf("\n"); - } - } - - } - return 0; -} -#endif /* TEST */ |