00001
00002
00003
00004
00005
00006
00007
00008
00009
00010
00011
00012
00013
00014
00015
00016
00017
00018
00019
00020
00021
00027 #include "libavutil/imgutils.h"
00028
00029 #include "avcodec.h"
00030 #include "dsputil.h"
00031 #include "mpegvideo.h"
00032 #include "golomb.h"
00033
00034 #include "rv34.h"
00035 #include "rv40vlc2.h"
00036 #include "rv40data.h"
00037
00038 static VLC aic_top_vlc;
00039 static VLC aic_mode1_vlc[AIC_MODE1_NUM], aic_mode2_vlc[AIC_MODE2_NUM];
00040 static VLC ptype_vlc[NUM_PTYPE_VLCS], btype_vlc[NUM_BTYPE_VLCS];
00041
00042 static const int16_t mode2_offs[] = {
00043 0, 614, 1222, 1794, 2410, 3014, 3586, 4202, 4792, 5382, 5966, 6542,
00044 7138, 7716, 8292, 8864, 9444, 10030, 10642, 11212, 11814
00045 };
00046
00050 static av_cold void rv40_init_tables(void)
00051 {
00052 int i;
00053 static VLC_TYPE aic_table[1 << AIC_TOP_BITS][2];
00054 static VLC_TYPE aic_mode1_table[AIC_MODE1_NUM << AIC_MODE1_BITS][2];
00055 static VLC_TYPE aic_mode2_table[11814][2];
00056 static VLC_TYPE ptype_table[NUM_PTYPE_VLCS << PTYPE_VLC_BITS][2];
00057 static VLC_TYPE btype_table[NUM_BTYPE_VLCS << BTYPE_VLC_BITS][2];
00058
00059 aic_top_vlc.table = aic_table;
00060 aic_top_vlc.table_allocated = 1 << AIC_TOP_BITS;
00061 init_vlc(&aic_top_vlc, AIC_TOP_BITS, AIC_TOP_SIZE,
00062 rv40_aic_top_vlc_bits, 1, 1,
00063 rv40_aic_top_vlc_codes, 1, 1, INIT_VLC_USE_NEW_STATIC);
00064 for(i = 0; i < AIC_MODE1_NUM; i++){
00065
00066 if((i % 10) == 9) continue;
00067 aic_mode1_vlc[i].table = &aic_mode1_table[i << AIC_MODE1_BITS];
00068 aic_mode1_vlc[i].table_allocated = 1 << AIC_MODE1_BITS;
00069 init_vlc(&aic_mode1_vlc[i], AIC_MODE1_BITS, AIC_MODE1_SIZE,
00070 aic_mode1_vlc_bits[i], 1, 1,
00071 aic_mode1_vlc_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
00072 }
00073 for(i = 0; i < AIC_MODE2_NUM; i++){
00074 aic_mode2_vlc[i].table = &aic_mode2_table[mode2_offs[i]];
00075 aic_mode2_vlc[i].table_allocated = mode2_offs[i + 1] - mode2_offs[i];
00076 init_vlc(&aic_mode2_vlc[i], AIC_MODE2_BITS, AIC_MODE2_SIZE,
00077 aic_mode2_vlc_bits[i], 1, 1,
00078 aic_mode2_vlc_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
00079 }
00080 for(i = 0; i < NUM_PTYPE_VLCS; i++){
00081 ptype_vlc[i].table = &ptype_table[i << PTYPE_VLC_BITS];
00082 ptype_vlc[i].table_allocated = 1 << PTYPE_VLC_BITS;
00083 init_vlc_sparse(&ptype_vlc[i], PTYPE_VLC_BITS, PTYPE_VLC_SIZE,
00084 ptype_vlc_bits[i], 1, 1,
00085 ptype_vlc_codes[i], 1, 1,
00086 ptype_vlc_syms, 1, 1, INIT_VLC_USE_NEW_STATIC);
00087 }
00088 for(i = 0; i < NUM_BTYPE_VLCS; i++){
00089 btype_vlc[i].table = &btype_table[i << BTYPE_VLC_BITS];
00090 btype_vlc[i].table_allocated = 1 << BTYPE_VLC_BITS;
00091 init_vlc_sparse(&btype_vlc[i], BTYPE_VLC_BITS, BTYPE_VLC_SIZE,
00092 btype_vlc_bits[i], 1, 1,
00093 btype_vlc_codes[i], 1, 1,
00094 btype_vlc_syms, 1, 1, INIT_VLC_USE_NEW_STATIC);
00095 }
00096 }
00097
00104 static int get_dimension(GetBitContext *gb, const int *dim)
00105 {
00106 int t = get_bits(gb, 3);
00107 int val = dim[t];
00108 if(val < 0)
00109 val = dim[get_bits1(gb) - val];
00110 if(!val){
00111 do{
00112 t = get_bits(gb, 8);
00113 val += t << 2;
00114 }while(t == 0xFF);
00115 }
00116 return val;
00117 }
00118
00122 static void rv40_parse_picture_size(GetBitContext *gb, int *w, int *h)
00123 {
00124 *w = get_dimension(gb, rv40_standard_widths);
00125 *h = get_dimension(gb, rv40_standard_heights);
00126 }
00127
00128 static int rv40_parse_slice_header(RV34DecContext *r, GetBitContext *gb, SliceInfo *si)
00129 {
00130 int mb_bits;
00131 int w = r->s.width, h = r->s.height;
00132 int mb_size;
00133
00134 memset(si, 0, sizeof(SliceInfo));
00135 if(get_bits1(gb))
00136 return -1;
00137 si->type = get_bits(gb, 2);
00138 if(si->type == 1) si->type = 0;
00139 si->quant = get_bits(gb, 5);
00140 if(get_bits(gb, 2))
00141 return -1;
00142 si->vlc_set = get_bits(gb, 2);
00143 skip_bits1(gb);
00144 si->pts = get_bits(gb, 13);
00145 if(!si->type || !get_bits1(gb))
00146 rv40_parse_picture_size(gb, &w, &h);
00147 if(av_image_check_size(w, h, 0, r->s.avctx) < 0)
00148 return -1;
00149 si->width = w;
00150 si->height = h;
00151 mb_size = ((w + 15) >> 4) * ((h + 15) >> 4);
00152 mb_bits = ff_rv34_get_start_offset(gb, mb_size);
00153 si->start = get_bits(gb, mb_bits);
00154
00155 return 0;
00156 }
00157
00161 static int rv40_decode_intra_types(RV34DecContext *r, GetBitContext *gb, int8_t *dst)
00162 {
00163 MpegEncContext *s = &r->s;
00164 int i, j, k, v;
00165 int A, B, C;
00166 int pattern;
00167 int8_t *ptr;
00168
00169 for(i = 0; i < 4; i++, dst += r->intra_types_stride){
00170 if(!i && s->first_slice_line){
00171 pattern = get_vlc2(gb, aic_top_vlc.table, AIC_TOP_BITS, 1);
00172 dst[0] = (pattern >> 2) & 2;
00173 dst[1] = (pattern >> 1) & 2;
00174 dst[2] = pattern & 2;
00175 dst[3] = (pattern << 1) & 2;
00176 continue;
00177 }
00178 ptr = dst;
00179 for(j = 0; j < 4; j++){
00180
00181
00182
00183
00184
00185
00186 A = ptr[-r->intra_types_stride + 1];
00187 B = ptr[-r->intra_types_stride];
00188 C = ptr[-1];
00189 pattern = A + (B << 4) + (C << 8);
00190 for(k = 0; k < MODE2_PATTERNS_NUM; k++)
00191 if(pattern == rv40_aic_table_index[k])
00192 break;
00193 if(j < 3 && k < MODE2_PATTERNS_NUM){
00194 v = get_vlc2(gb, aic_mode2_vlc[k].table, AIC_MODE2_BITS, 2);
00195 *ptr++ = v/9;
00196 *ptr++ = v%9;
00197 j++;
00198 }else{
00199 if(B != -1 && C != -1)
00200 v = get_vlc2(gb, aic_mode1_vlc[B + C*10].table, AIC_MODE1_BITS, 1);
00201 else{
00202 v = 0;
00203 switch(C){
00204 case -1:
00205 if(B < 2)
00206 v = get_bits1(gb) ^ 1;
00207 break;
00208 case 0:
00209 case 2:
00210 v = (get_bits1(gb) ^ 1) << 1;
00211 break;
00212 }
00213 }
00214 *ptr++ = v;
00215 }
00216 }
00217 }
00218 return 0;
00219 }
00220
00224 static int rv40_decode_mb_info(RV34DecContext *r)
00225 {
00226 MpegEncContext *s = &r->s;
00227 GetBitContext *gb = &s->gb;
00228 int q, i;
00229 int prev_type = 0;
00230 int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
00231 int blocks[RV34_MB_TYPES] = {0};
00232 int count = 0;
00233
00234 if(!r->s.mb_skip_run)
00235 r->s.mb_skip_run = svq3_get_ue_golomb(gb) + 1;
00236
00237 if(--r->s.mb_skip_run)
00238 return RV34_MB_SKIP;
00239
00240 if(r->avail_cache[6-1])
00241 blocks[r->mb_type[mb_pos - 1]]++;
00242 if(r->avail_cache[6-4]){
00243 blocks[r->mb_type[mb_pos - s->mb_stride]]++;
00244 if(r->avail_cache[6-2])
00245 blocks[r->mb_type[mb_pos - s->mb_stride + 1]]++;
00246 if(r->avail_cache[6-5])
00247 blocks[r->mb_type[mb_pos - s->mb_stride - 1]]++;
00248 }
00249
00250 for(i = 0; i < RV34_MB_TYPES; i++){
00251 if(blocks[i] > count){
00252 count = blocks[i];
00253 prev_type = i;
00254 }
00255 }
00256 if(s->pict_type == AV_PICTURE_TYPE_P){
00257 prev_type = block_num_to_ptype_vlc_num[prev_type];
00258 q = get_vlc2(gb, ptype_vlc[prev_type].table, PTYPE_VLC_BITS, 1);
00259 if(q < PBTYPE_ESCAPE)
00260 return q;
00261 q = get_vlc2(gb, ptype_vlc[prev_type].table, PTYPE_VLC_BITS, 1);
00262 av_log(s->avctx, AV_LOG_ERROR, "Dquant for P-frame\n");
00263 }else{
00264 prev_type = block_num_to_btype_vlc_num[prev_type];
00265 q = get_vlc2(gb, btype_vlc[prev_type].table, BTYPE_VLC_BITS, 1);
00266 if(q < PBTYPE_ESCAPE)
00267 return q;
00268 q = get_vlc2(gb, btype_vlc[prev_type].table, BTYPE_VLC_BITS, 1);
00269 av_log(s->avctx, AV_LOG_ERROR, "Dquant for B-frame\n");
00270 }
00271 return 0;
00272 }
00273
00274 enum RV40BlockPos{
00275 POS_CUR,
00276 POS_TOP,
00277 POS_LEFT,
00278 POS_BOTTOM,
00279 };
00280
00281 #define MASK_CUR 0x0001
00282 #define MASK_RIGHT 0x0008
00283 #define MASK_BOTTOM 0x0010
00284 #define MASK_TOP 0x1000
00285 #define MASK_Y_TOP_ROW 0x000F
00286 #define MASK_Y_LAST_ROW 0xF000
00287 #define MASK_Y_LEFT_COL 0x1111
00288 #define MASK_Y_RIGHT_COL 0x8888
00289 #define MASK_C_TOP_ROW 0x0003
00290 #define MASK_C_LAST_ROW 0x000C
00291 #define MASK_C_LEFT_COL 0x0005
00292 #define MASK_C_RIGHT_COL 0x000A
00293
00294 static const int neighbour_offs_x[4] = { 0, 0, -1, 0 };
00295 static const int neighbour_offs_y[4] = { 0, -1, 0, 1 };
00296
00297 static void rv40_adaptive_loop_filter(RV34DSPContext *rdsp,
00298 uint8_t *src, int stride, int dmode,
00299 int lim_q1, int lim_p1,
00300 int alpha, int beta, int beta2,
00301 int chroma, int edge, int dir)
00302 {
00303 int filter_p1, filter_q1;
00304 int strong;
00305 int lims;
00306
00307 strong = rdsp->rv40_loop_filter_strength[dir](src, stride, beta, beta2,
00308 edge, &filter_p1, &filter_q1);
00309
00310 lims = filter_p1 + filter_q1 + ((lim_q1 + lim_p1) >> 1) + 1;
00311
00312 if (strong) {
00313 rdsp->rv40_strong_loop_filter[dir](src, stride, alpha,
00314 lims, dmode, chroma);
00315 } else if (filter_p1 & filter_q1) {
00316 rdsp->rv40_weak_loop_filter[dir](src, stride, 1, 1, alpha, beta,
00317 lims, lim_q1, lim_p1);
00318 } else if (filter_p1 | filter_q1) {
00319 rdsp->rv40_weak_loop_filter[dir](src, stride, filter_p1, filter_q1,
00320 alpha, beta, lims >> 1, lim_q1 >> 1,
00321 lim_p1 >> 1);
00322 }
00323 }
00324
00328 static void rv40_loop_filter(RV34DecContext *r, int row)
00329 {
00330 MpegEncContext *s = &r->s;
00331 int mb_pos, mb_x;
00332 int i, j, k;
00333 uint8_t *Y, *C;
00334 int alpha, beta, betaY, betaC;
00335 int q;
00336 int mbtype[4];
00337
00341 int mb_strong[4];
00342 int clip[4];
00343
00349 int cbp[4];
00354 int uvcbp[4][2];
00360 int mvmasks[4];
00361
00362 mb_pos = row * s->mb_stride;
00363 for(mb_x = 0; mb_x < s->mb_width; mb_x++, mb_pos++){
00364 int mbtype = s->current_picture_ptr->f.mb_type[mb_pos];
00365 if(IS_INTRA(mbtype) || IS_SEPARATE_DC(mbtype))
00366 r->cbp_luma [mb_pos] = r->deblock_coefs[mb_pos] = 0xFFFF;
00367 if(IS_INTRA(mbtype))
00368 r->cbp_chroma[mb_pos] = 0xFF;
00369 }
00370 mb_pos = row * s->mb_stride;
00371 for(mb_x = 0; mb_x < s->mb_width; mb_x++, mb_pos++){
00372 int y_h_deblock, y_v_deblock;
00373 int c_v_deblock[2], c_h_deblock[2];
00374 int clip_left;
00375 int avail[4];
00376 int y_to_deblock, c_to_deblock[2];
00377
00378 q = s->current_picture_ptr->f.qscale_table[mb_pos];
00379 alpha = rv40_alpha_tab[q];
00380 beta = rv40_beta_tab [q];
00381 betaY = betaC = beta * 3;
00382 if(s->width * s->height <= 176*144)
00383 betaY += beta;
00384
00385 avail[0] = 1;
00386 avail[1] = row;
00387 avail[2] = mb_x;
00388 avail[3] = row < s->mb_height - 1;
00389 for(i = 0; i < 4; i++){
00390 if(avail[i]){
00391 int pos = mb_pos + neighbour_offs_x[i] + neighbour_offs_y[i]*s->mb_stride;
00392 mvmasks[i] = r->deblock_coefs[pos];
00393 mbtype [i] = s->current_picture_ptr->f.mb_type[pos];
00394 cbp [i] = r->cbp_luma[pos];
00395 uvcbp[i][0] = r->cbp_chroma[pos] & 0xF;
00396 uvcbp[i][1] = r->cbp_chroma[pos] >> 4;
00397 }else{
00398 mvmasks[i] = 0;
00399 mbtype [i] = mbtype[0];
00400 cbp [i] = 0;
00401 uvcbp[i][0] = uvcbp[i][1] = 0;
00402 }
00403 mb_strong[i] = IS_INTRA(mbtype[i]) || IS_SEPARATE_DC(mbtype[i]);
00404 clip[i] = rv40_filter_clip_tbl[mb_strong[i] + 1][q];
00405 }
00406 y_to_deblock = mvmasks[POS_CUR]
00407 | (mvmasks[POS_BOTTOM] << 16);
00408
00409
00410
00411
00412
00413
00414 y_h_deblock = y_to_deblock
00415 | ((cbp[POS_CUR] << 4) & ~MASK_Y_TOP_ROW)
00416 | ((cbp[POS_TOP] & MASK_Y_LAST_ROW) >> 12);
00417
00418
00419
00420
00421
00422
00423 y_v_deblock = y_to_deblock
00424 | ((cbp[POS_CUR] << 1) & ~MASK_Y_LEFT_COL)
00425 | ((cbp[POS_LEFT] & MASK_Y_RIGHT_COL) >> 3);
00426 if(!mb_x)
00427 y_v_deblock &= ~MASK_Y_LEFT_COL;
00428 if(!row)
00429 y_h_deblock &= ~MASK_Y_TOP_ROW;
00430 if(row == s->mb_height - 1 || (mb_strong[POS_CUR] || mb_strong[POS_BOTTOM]))
00431 y_h_deblock &= ~(MASK_Y_TOP_ROW << 16);
00432
00433
00434
00435 for(i = 0; i < 2; i++){
00436 c_to_deblock[i] = (uvcbp[POS_BOTTOM][i] << 4) | uvcbp[POS_CUR][i];
00437 c_v_deblock[i] = c_to_deblock[i]
00438 | ((uvcbp[POS_CUR] [i] << 1) & ~MASK_C_LEFT_COL)
00439 | ((uvcbp[POS_LEFT][i] & MASK_C_RIGHT_COL) >> 1);
00440 c_h_deblock[i] = c_to_deblock[i]
00441 | ((uvcbp[POS_TOP][i] & MASK_C_LAST_ROW) >> 2)
00442 | (uvcbp[POS_CUR][i] << 2);
00443 if(!mb_x)
00444 c_v_deblock[i] &= ~MASK_C_LEFT_COL;
00445 if(!row)
00446 c_h_deblock[i] &= ~MASK_C_TOP_ROW;
00447 if(row == s->mb_height - 1 || mb_strong[POS_CUR] || mb_strong[POS_BOTTOM])
00448 c_h_deblock[i] &= ~(MASK_C_TOP_ROW << 4);
00449 }
00450
00451 for(j = 0; j < 16; j += 4){
00452 Y = s->current_picture_ptr->f.data[0] + mb_x*16 + (row*16 + j) * s->linesize;
00453 for(i = 0; i < 4; i++, Y += 4){
00454 int ij = i + j;
00455 int clip_cur = y_to_deblock & (MASK_CUR << ij) ? clip[POS_CUR] : 0;
00456 int dither = j ? ij : i*4;
00457
00458
00459
00460 if(y_h_deblock & (MASK_BOTTOM << ij)){
00461 rv40_adaptive_loop_filter(&r->rdsp, Y+4*s->linesize,
00462 s->linesize, dither,
00463 y_to_deblock & (MASK_BOTTOM << ij) ? clip[POS_CUR] : 0,
00464 clip_cur, alpha, beta, betaY,
00465 0, 0, 0);
00466 }
00467
00468 if(y_v_deblock & (MASK_CUR << ij) && (i || !(mb_strong[POS_CUR] || mb_strong[POS_LEFT]))){
00469 if(!i)
00470 clip_left = mvmasks[POS_LEFT] & (MASK_RIGHT << j) ? clip[POS_LEFT] : 0;
00471 else
00472 clip_left = y_to_deblock & (MASK_CUR << (ij-1)) ? clip[POS_CUR] : 0;
00473 rv40_adaptive_loop_filter(&r->rdsp, Y, s->linesize, dither,
00474 clip_cur,
00475 clip_left,
00476 alpha, beta, betaY, 0, 0, 1);
00477 }
00478
00479 if(!j && y_h_deblock & (MASK_CUR << i) && (mb_strong[POS_CUR] || mb_strong[POS_TOP])){
00480 rv40_adaptive_loop_filter(&r->rdsp, Y, s->linesize, dither,
00481 clip_cur,
00482 mvmasks[POS_TOP] & (MASK_TOP << i) ? clip[POS_TOP] : 0,
00483 alpha, beta, betaY, 0, 1, 0);
00484 }
00485
00486 if(y_v_deblock & (MASK_CUR << ij) && !i && (mb_strong[POS_CUR] || mb_strong[POS_LEFT])){
00487 clip_left = mvmasks[POS_LEFT] & (MASK_RIGHT << j) ? clip[POS_LEFT] : 0;
00488 rv40_adaptive_loop_filter(&r->rdsp, Y, s->linesize, dither,
00489 clip_cur,
00490 clip_left,
00491 alpha, beta, betaY, 0, 1, 1);
00492 }
00493 }
00494 }
00495 for(k = 0; k < 2; k++){
00496 for(j = 0; j < 2; j++){
00497 C = s->current_picture_ptr->f.data[k + 1] + mb_x*8 + (row*8 + j*4) * s->uvlinesize;
00498 for(i = 0; i < 2; i++, C += 4){
00499 int ij = i + j*2;
00500 int clip_cur = c_to_deblock[k] & (MASK_CUR << ij) ? clip[POS_CUR] : 0;
00501 if(c_h_deblock[k] & (MASK_CUR << (ij+2))){
00502 int clip_bot = c_to_deblock[k] & (MASK_CUR << (ij+2)) ? clip[POS_CUR] : 0;
00503 rv40_adaptive_loop_filter(&r->rdsp, C+4*s->uvlinesize, s->uvlinesize, i*8,
00504 clip_bot,
00505 clip_cur,
00506 alpha, beta, betaC, 1, 0, 0);
00507 }
00508 if((c_v_deblock[k] & (MASK_CUR << ij)) && (i || !(mb_strong[POS_CUR] || mb_strong[POS_LEFT]))){
00509 if(!i)
00510 clip_left = uvcbp[POS_LEFT][k] & (MASK_CUR << (2*j+1)) ? clip[POS_LEFT] : 0;
00511 else
00512 clip_left = c_to_deblock[k] & (MASK_CUR << (ij-1)) ? clip[POS_CUR] : 0;
00513 rv40_adaptive_loop_filter(&r->rdsp, C, s->uvlinesize, j*8,
00514 clip_cur,
00515 clip_left,
00516 alpha, beta, betaC, 1, 0, 1);
00517 }
00518 if(!j && c_h_deblock[k] & (MASK_CUR << ij) && (mb_strong[POS_CUR] || mb_strong[POS_TOP])){
00519 int clip_top = uvcbp[POS_TOP][k] & (MASK_CUR << (ij+2)) ? clip[POS_TOP] : 0;
00520 rv40_adaptive_loop_filter(&r->rdsp, C, s->uvlinesize, i*8,
00521 clip_cur,
00522 clip_top,
00523 alpha, beta, betaC, 1, 1, 0);
00524 }
00525 if(c_v_deblock[k] & (MASK_CUR << ij) && !i && (mb_strong[POS_CUR] || mb_strong[POS_LEFT])){
00526 clip_left = uvcbp[POS_LEFT][k] & (MASK_CUR << (2*j+1)) ? clip[POS_LEFT] : 0;
00527 rv40_adaptive_loop_filter(&r->rdsp, C, s->uvlinesize, j*8,
00528 clip_cur,
00529 clip_left,
00530 alpha, beta, betaC, 1, 1, 1);
00531 }
00532 }
00533 }
00534 }
00535 }
00536 }
00537
00541 static av_cold int rv40_decode_init(AVCodecContext *avctx)
00542 {
00543 RV34DecContext *r = avctx->priv_data;
00544
00545 r->rv30 = 0;
00546 ff_rv34_decode_init(avctx);
00547 if(!aic_top_vlc.bits)
00548 rv40_init_tables();
00549 r->parse_slice_header = rv40_parse_slice_header;
00550 r->decode_intra_types = rv40_decode_intra_types;
00551 r->decode_mb_info = rv40_decode_mb_info;
00552 r->loop_filter = rv40_loop_filter;
00553 r->luma_dc_quant_i = rv40_luma_dc_quant[0];
00554 r->luma_dc_quant_p = rv40_luma_dc_quant[1];
00555 return 0;
00556 }
00557
00558 AVCodec ff_rv40_decoder = {
00559 .name = "rv40",
00560 .type = AVMEDIA_TYPE_VIDEO,
00561 .id = CODEC_ID_RV40,
00562 .priv_data_size = sizeof(RV34DecContext),
00563 .init = rv40_decode_init,
00564 .close = ff_rv34_decode_end,
00565 .decode = ff_rv34_decode_frame,
00566 .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY | CODEC_CAP_FRAME_THREADS,
00567 .flush = ff_mpeg_flush,
00568 .long_name = NULL_IF_CONFIG_SMALL("RealVideo 4.0"),
00569 .pix_fmts = ff_pixfmt_list_420,
00570 .init_thread_copy = ONLY_IF_THREADS_ENABLED(ff_rv34_decode_init_thread_copy),
00571 .update_thread_context = ONLY_IF_THREADS_ENABLED(ff_rv34_decode_update_thread_context),
00572 };