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00028 #include "avcodec.h"
00029 #include "bitstream.h"
00030 #include "golomb.h"
00031 #include "cavs.h"
00032 #include "cavsdata.h"
00033
00034
00035
00036
00037
00038
00039
00040 static inline int get_bs(vector_t *mvP, vector_t *mvQ, int b) {
00041 if((mvP->ref == REF_INTRA) || (mvQ->ref == REF_INTRA))
00042 return 2;
00043 if( (abs(mvP->x - mvQ->x) >= 4) || (abs(mvP->y - mvQ->y) >= 4) )
00044 return 1;
00045 if(b){
00046 mvP += MV_BWD_OFFS;
00047 mvQ += MV_BWD_OFFS;
00048 if( (abs(mvP->x - mvQ->x) >= 4) || (abs(mvP->y - mvQ->y) >= 4) )
00049 return 1;
00050 }else{
00051 if(mvP->ref != mvQ->ref)
00052 return 1;
00053 }
00054 return 0;
00055 }
00056
00057 #define SET_PARAMS \
00058 alpha = alpha_tab[av_clip(qp_avg + h->alpha_offset,0,63)]; \
00059 beta = beta_tab[av_clip(qp_avg + h->beta_offset, 0,63)]; \
00060 tc = tc_tab[av_clip(qp_avg + h->alpha_offset,0,63)];
00061
00074 void ff_cavs_filter(AVSContext *h, enum mb_t mb_type) {
00075 DECLARE_ALIGNED_8(uint8_t, bs[8]);
00076 int qp_avg, alpha, beta, tc;
00077 int i;
00078
00079
00080 h->topleft_border_y = h->top_border_y[h->mbx*16+15];
00081 h->topleft_border_u = h->top_border_u[h->mbx*10+8];
00082 h->topleft_border_v = h->top_border_v[h->mbx*10+8];
00083 memcpy(&h->top_border_y[h->mbx*16], h->cy + 15* h->l_stride,16);
00084 memcpy(&h->top_border_u[h->mbx*10+1], h->cu + 7* h->c_stride,8);
00085 memcpy(&h->top_border_v[h->mbx*10+1], h->cv + 7* h->c_stride,8);
00086 for(i=0;i<8;i++) {
00087 h->left_border_y[i*2+1] = *(h->cy + 15 + (i*2+0)*h->l_stride);
00088 h->left_border_y[i*2+2] = *(h->cy + 15 + (i*2+1)*h->l_stride);
00089 h->left_border_u[i+1] = *(h->cu + 7 + i*h->c_stride);
00090 h->left_border_v[i+1] = *(h->cv + 7 + i*h->c_stride);
00091 }
00092 if(!h->loop_filter_disable) {
00093
00094 if(mb_type == I_8X8)
00095 *((uint64_t *)bs) = 0x0202020202020202ULL;
00096 else{
00097 *((uint64_t *)bs) = 0;
00098 if(ff_cavs_partition_flags[mb_type] & SPLITV){
00099 bs[2] = get_bs(&h->mv[MV_FWD_X0], &h->mv[MV_FWD_X1], mb_type > P_8X8);
00100 bs[3] = get_bs(&h->mv[MV_FWD_X2], &h->mv[MV_FWD_X3], mb_type > P_8X8);
00101 }
00102 if(ff_cavs_partition_flags[mb_type] & SPLITH){
00103 bs[6] = get_bs(&h->mv[MV_FWD_X0], &h->mv[MV_FWD_X2], mb_type > P_8X8);
00104 bs[7] = get_bs(&h->mv[MV_FWD_X1], &h->mv[MV_FWD_X3], mb_type > P_8X8);
00105 }
00106 bs[0] = get_bs(&h->mv[MV_FWD_A1], &h->mv[MV_FWD_X0], mb_type > P_8X8);
00107 bs[1] = get_bs(&h->mv[MV_FWD_A3], &h->mv[MV_FWD_X2], mb_type > P_8X8);
00108 bs[4] = get_bs(&h->mv[MV_FWD_B2], &h->mv[MV_FWD_X0], mb_type > P_8X8);
00109 bs[5] = get_bs(&h->mv[MV_FWD_B3], &h->mv[MV_FWD_X1], mb_type > P_8X8);
00110 }
00111 if( *((uint64_t *)bs) ) {
00112 if(h->flags & A_AVAIL) {
00113 qp_avg = (h->qp + h->left_qp + 1) >> 1;
00114 SET_PARAMS;
00115 h->s.dsp.cavs_filter_lv(h->cy,h->l_stride,alpha,beta,tc,bs[0],bs[1]);
00116 h->s.dsp.cavs_filter_cv(h->cu,h->c_stride,alpha,beta,tc,bs[0],bs[1]);
00117 h->s.dsp.cavs_filter_cv(h->cv,h->c_stride,alpha,beta,tc,bs[0],bs[1]);
00118 }
00119 qp_avg = h->qp;
00120 SET_PARAMS;
00121 h->s.dsp.cavs_filter_lv(h->cy + 8,h->l_stride,alpha,beta,tc,bs[2],bs[3]);
00122 h->s.dsp.cavs_filter_lh(h->cy + 8*h->l_stride,h->l_stride,alpha,beta,tc,
00123 bs[6],bs[7]);
00124
00125 if(h->flags & B_AVAIL) {
00126 qp_avg = (h->qp + h->top_qp[h->mbx] + 1) >> 1;
00127 SET_PARAMS;
00128 h->s.dsp.cavs_filter_lh(h->cy,h->l_stride,alpha,beta,tc,bs[4],bs[5]);
00129 h->s.dsp.cavs_filter_ch(h->cu,h->c_stride,alpha,beta,tc,bs[4],bs[5]);
00130 h->s.dsp.cavs_filter_ch(h->cv,h->c_stride,alpha,beta,tc,bs[4],bs[5]);
00131 }
00132 }
00133 }
00134 h->left_qp = h->qp;
00135 h->top_qp[h->mbx] = h->qp;
00136 }
00137
00138 #undef SET_PARAMS
00139
00140
00141
00142
00143
00144
00145
00146 void ff_cavs_load_intra_pred_luma(AVSContext *h, uint8_t *top,
00147 uint8_t **left, int block) {
00148 int i;
00149
00150 switch(block) {
00151 case 0:
00152 *left = h->left_border_y;
00153 h->left_border_y[0] = h->left_border_y[1];
00154 memset(&h->left_border_y[17],h->left_border_y[16],9);
00155 memcpy(&top[1],&h->top_border_y[h->mbx*16],16);
00156 top[17] = top[16];
00157 top[0] = top[1];
00158 if((h->flags & A_AVAIL) && (h->flags & B_AVAIL))
00159 h->left_border_y[0] = top[0] = h->topleft_border_y;
00160 break;
00161 case 1:
00162 *left = h->intern_border_y;
00163 for(i=0;i<8;i++)
00164 h->intern_border_y[i+1] = *(h->cy + 7 + i*h->l_stride);
00165 memset(&h->intern_border_y[9],h->intern_border_y[8],9);
00166 h->intern_border_y[0] = h->intern_border_y[1];
00167 memcpy(&top[1],&h->top_border_y[h->mbx*16+8],8);
00168 if(h->flags & C_AVAIL)
00169 memcpy(&top[9],&h->top_border_y[(h->mbx + 1)*16],8);
00170 else
00171 memset(&top[9],top[8],9);
00172 top[17] = top[16];
00173 top[0] = top[1];
00174 if(h->flags & B_AVAIL)
00175 h->intern_border_y[0] = top[0] = h->top_border_y[h->mbx*16+7];
00176 break;
00177 case 2:
00178 *left = &h->left_border_y[8];
00179 memcpy(&top[1],h->cy + 7*h->l_stride,16);
00180 top[17] = top[16];
00181 top[0] = top[1];
00182 if(h->flags & A_AVAIL)
00183 top[0] = h->left_border_y[8];
00184 break;
00185 case 3:
00186 *left = &h->intern_border_y[8];
00187 for(i=0;i<8;i++)
00188 h->intern_border_y[i+9] = *(h->cy + 7 + (i+8)*h->l_stride);
00189 memset(&h->intern_border_y[17],h->intern_border_y[16],9);
00190 memcpy(&top[0],h->cy + 7 + 7*h->l_stride,9);
00191 memset(&top[9],top[8],9);
00192 break;
00193 }
00194 }
00195
00196 void ff_cavs_load_intra_pred_chroma(AVSContext *h) {
00197
00198 h->left_border_u[9] = h->left_border_u[8];
00199 h->left_border_v[9] = h->left_border_v[8];
00200 h->top_border_u[h->mbx*10+9] = h->top_border_u[h->mbx*10+8];
00201 h->top_border_v[h->mbx*10+9] = h->top_border_v[h->mbx*10+8];
00202 if(h->mbx && h->mby) {
00203 h->top_border_u[h->mbx*10] = h->left_border_u[0] = h->topleft_border_u;
00204 h->top_border_v[h->mbx*10] = h->left_border_v[0] = h->topleft_border_v;
00205 } else {
00206 h->left_border_u[0] = h->left_border_u[1];
00207 h->left_border_v[0] = h->left_border_v[1];
00208 h->top_border_u[h->mbx*10] = h->top_border_u[h->mbx*10+1];
00209 h->top_border_v[h->mbx*10] = h->top_border_v[h->mbx*10+1];
00210 }
00211 }
00212
00213 static void intra_pred_vert(uint8_t *d,uint8_t *top,uint8_t *left,int stride) {
00214 int y;
00215 uint64_t a = AV_RN64(&top[1]);
00216 for(y=0;y<8;y++) {
00217 *((uint64_t *)(d+y*stride)) = a;
00218 }
00219 }
00220
00221 static void intra_pred_horiz(uint8_t *d,uint8_t *top,uint8_t *left,int stride) {
00222 int y;
00223 uint64_t a;
00224 for(y=0;y<8;y++) {
00225 a = left[y+1] * 0x0101010101010101ULL;
00226 *((uint64_t *)(d+y*stride)) = a;
00227 }
00228 }
00229
00230 static void intra_pred_dc_128(uint8_t *d,uint8_t *top,uint8_t *left,int stride) {
00231 int y;
00232 uint64_t a = 0x8080808080808080ULL;
00233 for(y=0;y<8;y++)
00234 *((uint64_t *)(d+y*stride)) = a;
00235 }
00236
00237 static void intra_pred_plane(uint8_t *d,uint8_t *top,uint8_t *left,int stride) {
00238 int x,y,ia;
00239 int ih = 0;
00240 int iv = 0;
00241 uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
00242
00243 for(x=0; x<4; x++) {
00244 ih += (x+1)*(top[5+x]-top[3-x]);
00245 iv += (x+1)*(left[5+x]-left[3-x]);
00246 }
00247 ia = (top[8]+left[8])<<4;
00248 ih = (17*ih+16)>>5;
00249 iv = (17*iv+16)>>5;
00250 for(y=0; y<8; y++)
00251 for(x=0; x<8; x++)
00252 d[y*stride+x] = cm[(ia+(x-3)*ih+(y-3)*iv+16)>>5];
00253 }
00254
00255 #define LOWPASS(ARRAY,INDEX) \
00256 (( ARRAY[(INDEX)-1] + 2*ARRAY[(INDEX)] + ARRAY[(INDEX)+1] + 2) >> 2)
00257
00258 static void intra_pred_lp(uint8_t *d,uint8_t *top,uint8_t *left,int stride) {
00259 int x,y;
00260 for(y=0; y<8; y++)
00261 for(x=0; x<8; x++)
00262 d[y*stride+x] = (LOWPASS(top,x+1) + LOWPASS(left,y+1)) >> 1;
00263 }
00264
00265 static void intra_pred_down_left(uint8_t *d,uint8_t *top,uint8_t *left,int stride) {
00266 int x,y;
00267 for(y=0; y<8; y++)
00268 for(x=0; x<8; x++)
00269 d[y*stride+x] = (LOWPASS(top,x+y+2) + LOWPASS(left,x+y+2)) >> 1;
00270 }
00271
00272 static void intra_pred_down_right(uint8_t *d,uint8_t *top,uint8_t *left,int stride) {
00273 int x,y;
00274 for(y=0; y<8; y++)
00275 for(x=0; x<8; x++)
00276 if(x==y)
00277 d[y*stride+x] = (left[1]+2*top[0]+top[1]+2)>>2;
00278 else if(x>y)
00279 d[y*stride+x] = LOWPASS(top,x-y);
00280 else
00281 d[y*stride+x] = LOWPASS(left,y-x);
00282 }
00283
00284 static void intra_pred_lp_left(uint8_t *d,uint8_t *top,uint8_t *left,int stride) {
00285 int x,y;
00286 for(y=0; y<8; y++)
00287 for(x=0; x<8; x++)
00288 d[y*stride+x] = LOWPASS(left,y+1);
00289 }
00290
00291 static void intra_pred_lp_top(uint8_t *d,uint8_t *top,uint8_t *left,int stride) {
00292 int x,y;
00293 for(y=0; y<8; y++)
00294 for(x=0; x<8; x++)
00295 d[y*stride+x] = LOWPASS(top,x+1);
00296 }
00297
00298 #undef LOWPASS
00299
00300 void ff_cavs_modify_mb_i(AVSContext *h, int *pred_mode_uv) {
00301
00302 h->pred_mode_Y[3] = h->pred_mode_Y[5];
00303 h->pred_mode_Y[6] = h->pred_mode_Y[8];
00304 h->top_pred_Y[h->mbx*2+0] = h->pred_mode_Y[7];
00305 h->top_pred_Y[h->mbx*2+1] = h->pred_mode_Y[8];
00306
00307
00308 if(!(h->flags & A_AVAIL)) {
00309 modify_pred(ff_left_modifier_l, &h->pred_mode_Y[4] );
00310 modify_pred(ff_left_modifier_l, &h->pred_mode_Y[7] );
00311 modify_pred(ff_left_modifier_c, pred_mode_uv );
00312 }
00313 if(!(h->flags & B_AVAIL)) {
00314 modify_pred(ff_top_modifier_l, &h->pred_mode_Y[4] );
00315 modify_pred(ff_top_modifier_l, &h->pred_mode_Y[5] );
00316 modify_pred(ff_top_modifier_c, pred_mode_uv );
00317 }
00318 }
00319
00320
00321
00322
00323
00324
00325
00326 static inline void mc_dir_part(AVSContext *h,Picture *pic,int square,
00327 int chroma_height,int delta,int list,uint8_t *dest_y,
00328 uint8_t *dest_cb,uint8_t *dest_cr,int src_x_offset,
00329 int src_y_offset,qpel_mc_func *qpix_op,
00330 h264_chroma_mc_func chroma_op,vector_t *mv){
00331 MpegEncContext * const s = &h->s;
00332 const int mx= mv->x + src_x_offset*8;
00333 const int my= mv->y + src_y_offset*8;
00334 const int luma_xy= (mx&3) + ((my&3)<<2);
00335 uint8_t * src_y = pic->data[0] + (mx>>2) + (my>>2)*h->l_stride;
00336 uint8_t * src_cb= pic->data[1] + (mx>>3) + (my>>3)*h->c_stride;
00337 uint8_t * src_cr= pic->data[2] + (mx>>3) + (my>>3)*h->c_stride;
00338 int extra_width= 0;
00339 int extra_height= extra_width;
00340 int emu=0;
00341 const int full_mx= mx>>2;
00342 const int full_my= my>>2;
00343 const int pic_width = 16*h->mb_width;
00344 const int pic_height = 16*h->mb_height;
00345
00346 if(!pic->data[0])
00347 return;
00348 if(mx&7) extra_width -= 3;
00349 if(my&7) extra_height -= 3;
00350
00351 if( full_mx < 0-extra_width
00352 || full_my < 0-extra_height
00353 || full_mx + 16 > pic_width + extra_width
00354 || full_my + 16 > pic_height + extra_height){
00355 ff_emulated_edge_mc(s->edge_emu_buffer, src_y - 2 - 2*h->l_stride, h->l_stride,
00356 16+5, 16+5, full_mx-2, full_my-2, pic_width, pic_height);
00357 src_y= s->edge_emu_buffer + 2 + 2*h->l_stride;
00358 emu=1;
00359 }
00360
00361 qpix_op[luma_xy](dest_y, src_y, h->l_stride);
00362 if(!square){
00363 qpix_op[luma_xy](dest_y + delta, src_y + delta, h->l_stride);
00364 }
00365
00366 if(emu){
00367 ff_emulated_edge_mc(s->edge_emu_buffer, src_cb, h->c_stride,
00368 9, 9, (mx>>3), (my>>3), pic_width>>1, pic_height>>1);
00369 src_cb= s->edge_emu_buffer;
00370 }
00371 chroma_op(dest_cb, src_cb, h->c_stride, chroma_height, mx&7, my&7);
00372
00373 if(emu){
00374 ff_emulated_edge_mc(s->edge_emu_buffer, src_cr, h->c_stride,
00375 9, 9, (mx>>3), (my>>3), pic_width>>1, pic_height>>1);
00376 src_cr= s->edge_emu_buffer;
00377 }
00378 chroma_op(dest_cr, src_cr, h->c_stride, chroma_height, mx&7, my&7);
00379 }
00380
00381 static inline void mc_part_std(AVSContext *h,int square,int chroma_height,int delta,
00382 uint8_t *dest_y,uint8_t *dest_cb,uint8_t *dest_cr,
00383 int x_offset, int y_offset,qpel_mc_func *qpix_put,
00384 h264_chroma_mc_func chroma_put,qpel_mc_func *qpix_avg,
00385 h264_chroma_mc_func chroma_avg, vector_t *mv){
00386 qpel_mc_func *qpix_op= qpix_put;
00387 h264_chroma_mc_func chroma_op= chroma_put;
00388
00389 dest_y += 2*x_offset + 2*y_offset*h->l_stride;
00390 dest_cb += x_offset + y_offset*h->c_stride;
00391 dest_cr += x_offset + y_offset*h->c_stride;
00392 x_offset += 8*h->mbx;
00393 y_offset += 8*h->mby;
00394
00395 if(mv->ref >= 0){
00396 Picture *ref= &h->DPB[mv->ref];
00397 mc_dir_part(h, ref, square, chroma_height, delta, 0,
00398 dest_y, dest_cb, dest_cr, x_offset, y_offset,
00399 qpix_op, chroma_op, mv);
00400
00401 qpix_op= qpix_avg;
00402 chroma_op= chroma_avg;
00403 }
00404
00405 if((mv+MV_BWD_OFFS)->ref >= 0){
00406 Picture *ref= &h->DPB[0];
00407 mc_dir_part(h, ref, square, chroma_height, delta, 1,
00408 dest_y, dest_cb, dest_cr, x_offset, y_offset,
00409 qpix_op, chroma_op, mv+MV_BWD_OFFS);
00410 }
00411 }
00412
00413 void ff_cavs_inter(AVSContext *h, enum mb_t mb_type) {
00414 if(ff_cavs_partition_flags[mb_type] == 0){
00415 mc_part_std(h, 1, 8, 0, h->cy, h->cu, h->cv, 0, 0,
00416 h->s.dsp.put_cavs_qpel_pixels_tab[0],
00417 h->s.dsp.put_h264_chroma_pixels_tab[0],
00418 h->s.dsp.avg_cavs_qpel_pixels_tab[0],
00419 h->s.dsp.avg_h264_chroma_pixels_tab[0],&h->mv[MV_FWD_X0]);
00420 }else{
00421 mc_part_std(h, 1, 4, 0, h->cy, h->cu, h->cv, 0, 0,
00422 h->s.dsp.put_cavs_qpel_pixels_tab[1],
00423 h->s.dsp.put_h264_chroma_pixels_tab[1],
00424 h->s.dsp.avg_cavs_qpel_pixels_tab[1],
00425 h->s.dsp.avg_h264_chroma_pixels_tab[1],&h->mv[MV_FWD_X0]);
00426 mc_part_std(h, 1, 4, 0, h->cy, h->cu, h->cv, 4, 0,
00427 h->s.dsp.put_cavs_qpel_pixels_tab[1],
00428 h->s.dsp.put_h264_chroma_pixels_tab[1],
00429 h->s.dsp.avg_cavs_qpel_pixels_tab[1],
00430 h->s.dsp.avg_h264_chroma_pixels_tab[1],&h->mv[MV_FWD_X1]);
00431 mc_part_std(h, 1, 4, 0, h->cy, h->cu, h->cv, 0, 4,
00432 h->s.dsp.put_cavs_qpel_pixels_tab[1],
00433 h->s.dsp.put_h264_chroma_pixels_tab[1],
00434 h->s.dsp.avg_cavs_qpel_pixels_tab[1],
00435 h->s.dsp.avg_h264_chroma_pixels_tab[1],&h->mv[MV_FWD_X2]);
00436 mc_part_std(h, 1, 4, 0, h->cy, h->cu, h->cv, 4, 4,
00437 h->s.dsp.put_cavs_qpel_pixels_tab[1],
00438 h->s.dsp.put_h264_chroma_pixels_tab[1],
00439 h->s.dsp.avg_cavs_qpel_pixels_tab[1],
00440 h->s.dsp.avg_h264_chroma_pixels_tab[1],&h->mv[MV_FWD_X3]);
00441 }
00442 }
00443
00444
00445
00446
00447
00448
00449
00450 static inline void scale_mv(AVSContext *h, int *d_x, int *d_y, vector_t *src, int distp) {
00451 int den = h->scale_den[src->ref];
00452
00453 *d_x = (src->x*distp*den + 256 + (src->x>>31)) >> 9;
00454 *d_y = (src->y*distp*den + 256 + (src->y>>31)) >> 9;
00455 }
00456
00457 static inline void mv_pred_median(AVSContext *h, vector_t *mvP, vector_t *mvA, vector_t *mvB, vector_t *mvC) {
00458 int ax, ay, bx, by, cx, cy;
00459 int len_ab, len_bc, len_ca, len_mid;
00460
00461
00462 scale_mv(h, &ax, &ay, mvA, mvP->dist);
00463 scale_mv(h, &bx, &by, mvB, mvP->dist);
00464 scale_mv(h, &cx, &cy, mvC, mvP->dist);
00465
00466 len_ab = abs(ax - bx) + abs(ay - by);
00467 len_bc = abs(bx - cx) + abs(by - cy);
00468 len_ca = abs(cx - ax) + abs(cy - ay);
00469 len_mid = mid_pred(len_ab, len_bc, len_ca);
00470 if(len_mid == len_ab) {
00471 mvP->x = cx;
00472 mvP->y = cy;
00473 } else if(len_mid == len_bc) {
00474 mvP->x = ax;
00475 mvP->y = ay;
00476 } else {
00477 mvP->x = bx;
00478 mvP->y = by;
00479 }
00480 }
00481
00482 void ff_cavs_mv(AVSContext *h, enum mv_loc_t nP, enum mv_loc_t nC,
00483 enum mv_pred_t mode, enum block_t size, int ref) {
00484 vector_t *mvP = &h->mv[nP];
00485 vector_t *mvA = &h->mv[nP-1];
00486 vector_t *mvB = &h->mv[nP-4];
00487 vector_t *mvC = &h->mv[nC];
00488 const vector_t *mvP2 = NULL;
00489
00490 mvP->ref = ref;
00491 mvP->dist = h->dist[mvP->ref];
00492 if(mvC->ref == NOT_AVAIL)
00493 mvC = &h->mv[nP-5];
00494 if((mode == MV_PRED_PSKIP) &&
00495 ((mvA->ref == NOT_AVAIL) || (mvB->ref == NOT_AVAIL) ||
00496 ((mvA->x | mvA->y | mvA->ref) == 0) ||
00497 ((mvB->x | mvB->y | mvB->ref) == 0) )) {
00498 mvP2 = &ff_cavs_un_mv;
00499
00500 } else if((mvA->ref >= 0) && (mvB->ref < 0) && (mvC->ref < 0)) {
00501 mvP2= mvA;
00502 } else if((mvA->ref < 0) && (mvB->ref >= 0) && (mvC->ref < 0)) {
00503 mvP2= mvB;
00504 } else if((mvA->ref < 0) && (mvB->ref < 0) && (mvC->ref >= 0)) {
00505 mvP2= mvC;
00506 } else if(mode == MV_PRED_LEFT && mvA->ref == ref){
00507 mvP2= mvA;
00508 } else if(mode == MV_PRED_TOP && mvB->ref == ref){
00509 mvP2= mvB;
00510 } else if(mode == MV_PRED_TOPRIGHT && mvC->ref == ref){
00511 mvP2= mvC;
00512 }
00513 if(mvP2){
00514 mvP->x = mvP2->x;
00515 mvP->y = mvP2->y;
00516 }else
00517 mv_pred_median(h, mvP, mvA, mvB, mvC);
00518
00519 if(mode < MV_PRED_PSKIP) {
00520 mvP->x += get_se_golomb(&h->s.gb);
00521 mvP->y += get_se_golomb(&h->s.gb);
00522 }
00523 set_mvs(mvP,size);
00524 }
00525
00526
00527
00528
00529
00530
00531
00535 void ff_cavs_init_mb(AVSContext *h) {
00536 int i;
00537
00538
00539 for(i=0;i<3;i++) {
00540 h->mv[MV_FWD_B2+i] = h->top_mv[0][h->mbx*2+i];
00541 h->mv[MV_BWD_B2+i] = h->top_mv[1][h->mbx*2+i];
00542 }
00543 h->pred_mode_Y[1] = h->top_pred_Y[h->mbx*2+0];
00544 h->pred_mode_Y[2] = h->top_pred_Y[h->mbx*2+1];
00545
00546 if(!(h->flags & B_AVAIL)) {
00547 h->mv[MV_FWD_B2] = ff_cavs_un_mv;
00548 h->mv[MV_FWD_B3] = ff_cavs_un_mv;
00549 h->mv[MV_BWD_B2] = ff_cavs_un_mv;
00550 h->mv[MV_BWD_B3] = ff_cavs_un_mv;
00551 h->pred_mode_Y[1] = h->pred_mode_Y[2] = NOT_AVAIL;
00552 h->flags &= ~(C_AVAIL|D_AVAIL);
00553 } else if(h->mbx) {
00554 h->flags |= D_AVAIL;
00555 }
00556 if(h->mbx == h->mb_width-1)
00557 h->flags &= ~C_AVAIL;
00558
00559 if(!(h->flags & C_AVAIL)) {
00560 h->mv[MV_FWD_C2] = ff_cavs_un_mv;
00561 h->mv[MV_BWD_C2] = ff_cavs_un_mv;
00562 }
00563
00564 if(!(h->flags & D_AVAIL)) {
00565 h->mv[MV_FWD_D3] = ff_cavs_un_mv;
00566 h->mv[MV_BWD_D3] = ff_cavs_un_mv;
00567 }
00568
00569 h->col_type = &h->col_type_base[h->mby*h->mb_width + h->mbx];
00570 }
00571
00577 int ff_cavs_next_mb(AVSContext *h) {
00578 int i;
00579
00580 h->flags |= A_AVAIL;
00581 h->cy += 16;
00582 h->cu += 8;
00583 h->cv += 8;
00584
00585 for(i=0;i<=20;i+=4)
00586 h->mv[i] = h->mv[i+2];
00587
00588 h->top_mv[0][h->mbx*2+0] = h->mv[MV_FWD_X2];
00589 h->top_mv[0][h->mbx*2+1] = h->mv[MV_FWD_X3];
00590 h->top_mv[1][h->mbx*2+0] = h->mv[MV_BWD_X2];
00591 h->top_mv[1][h->mbx*2+1] = h->mv[MV_BWD_X3];
00592
00593 h->mbx++;
00594 if(h->mbx == h->mb_width) {
00595 h->flags = B_AVAIL|C_AVAIL;
00596
00597 h->pred_mode_Y[3] = h->pred_mode_Y[6] = NOT_AVAIL;
00598
00599 for(i=0;i<=20;i+=4)
00600 h->mv[i] = ff_cavs_un_mv;
00601 h->mbx = 0;
00602 h->mby++;
00603
00604 h->cy = h->picture.data[0] + h->mby*16*h->l_stride;
00605 h->cu = h->picture.data[1] + h->mby*8*h->c_stride;
00606 h->cv = h->picture.data[2] + h->mby*8*h->c_stride;
00607 if(h->mby == h->mb_height) {
00608 return 0;
00609 } else {
00610
00611 }
00612 }
00613 return 1;
00614 }
00615
00616
00617
00618
00619
00620
00621
00622 void ff_cavs_init_pic(AVSContext *h) {
00623 int i;
00624
00625
00626 for(i=0;i<=20;i+=4)
00627 h->mv[i] = ff_cavs_un_mv;
00628 h->mv[MV_BWD_X0] = ff_cavs_dir_mv;
00629 set_mvs(&h->mv[MV_BWD_X0], BLK_16X16);
00630 h->mv[MV_FWD_X0] = ff_cavs_dir_mv;
00631 set_mvs(&h->mv[MV_FWD_X0], BLK_16X16);
00632 h->pred_mode_Y[3] = h->pred_mode_Y[6] = NOT_AVAIL;
00633 h->cy = h->picture.data[0];
00634 h->cu = h->picture.data[1];
00635 h->cv = h->picture.data[2];
00636 h->l_stride = h->picture.linesize[0];
00637 h->c_stride = h->picture.linesize[1];
00638 h->luma_scan[2] = 8*h->l_stride;
00639 h->luma_scan[3] = 8*h->l_stride+8;
00640 h->mbx = h->mby = 0;
00641 h->flags = 0;
00642 }
00643
00644
00645
00646
00647
00648
00649
00655 void ff_cavs_init_top_lines(AVSContext *h) {
00656
00657 h->top_qp = av_malloc( h->mb_width);
00658 h->top_mv[0] = av_malloc((h->mb_width*2+1)*sizeof(vector_t));
00659 h->top_mv[1] = av_malloc((h->mb_width*2+1)*sizeof(vector_t));
00660 h->top_pred_Y = av_malloc( h->mb_width*2*sizeof(*h->top_pred_Y));
00661 h->top_border_y = av_malloc((h->mb_width+1)*16);
00662 h->top_border_u = av_malloc((h->mb_width)*10);
00663 h->top_border_v = av_malloc((h->mb_width)*10);
00664
00665
00666 h->col_mv = av_malloc( h->mb_width*h->mb_height*4*sizeof(vector_t));
00667 h->col_type_base = av_malloc(h->mb_width*h->mb_height);
00668 h->block = av_mallocz(64*sizeof(DCTELEM));
00669 }
00670
00671 int ff_cavs_init(AVCodecContext *avctx) {
00672 AVSContext *h = avctx->priv_data;
00673 MpegEncContext * const s = &h->s;
00674
00675 MPV_decode_defaults(s);
00676 s->avctx = avctx;
00677
00678 avctx->pix_fmt= PIX_FMT_YUV420P;
00679
00680 h->luma_scan[0] = 0;
00681 h->luma_scan[1] = 8;
00682 h->intra_pred_l[ INTRA_L_VERT] = intra_pred_vert;
00683 h->intra_pred_l[ INTRA_L_HORIZ] = intra_pred_horiz;
00684 h->intra_pred_l[ INTRA_L_LP] = intra_pred_lp;
00685 h->intra_pred_l[ INTRA_L_DOWN_LEFT] = intra_pred_down_left;
00686 h->intra_pred_l[INTRA_L_DOWN_RIGHT] = intra_pred_down_right;
00687 h->intra_pred_l[ INTRA_L_LP_LEFT] = intra_pred_lp_left;
00688 h->intra_pred_l[ INTRA_L_LP_TOP] = intra_pred_lp_top;
00689 h->intra_pred_l[ INTRA_L_DC_128] = intra_pred_dc_128;
00690 h->intra_pred_c[ INTRA_C_LP] = intra_pred_lp;
00691 h->intra_pred_c[ INTRA_C_HORIZ] = intra_pred_horiz;
00692 h->intra_pred_c[ INTRA_C_VERT] = intra_pred_vert;
00693 h->intra_pred_c[ INTRA_C_PLANE] = intra_pred_plane;
00694 h->intra_pred_c[ INTRA_C_LP_LEFT] = intra_pred_lp_left;
00695 h->intra_pred_c[ INTRA_C_LP_TOP] = intra_pred_lp_top;
00696 h->intra_pred_c[ INTRA_C_DC_128] = intra_pred_dc_128;
00697 h->mv[ 7] = ff_cavs_un_mv;
00698 h->mv[19] = ff_cavs_un_mv;
00699 return 0;
00700 }
00701
00702 int ff_cavs_end(AVCodecContext *avctx) {
00703 AVSContext *h = avctx->priv_data;
00704
00705 av_free(h->top_qp);
00706 av_free(h->top_mv[0]);
00707 av_free(h->top_mv[1]);
00708 av_free(h->top_pred_Y);
00709 av_free(h->top_border_y);
00710 av_free(h->top_border_u);
00711 av_free(h->top_border_v);
00712 av_free(h->col_mv);
00713 av_free(h->col_type_base);
00714 av_free(h->block);
00715 return 0;
00716 }