00001 /* 00002 * SVQ1 Encoder 00003 * Copyright (C) 2004 Mike Melanson <melanson@pcisys.net> 00004 * 00005 * This file is part of FFmpeg. 00006 * 00007 * FFmpeg is free software; you can redistribute it and/or 00008 * modify it under the terms of the GNU Lesser General Public 00009 * License as published by the Free Software Foundation; either 00010 * version 2.1 of the License, or (at your option) any later version. 00011 * 00012 * FFmpeg is distributed in the hope that it will be useful, 00013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00015 * Lesser General Public License for more details. 00016 * 00017 * You should have received a copy of the GNU Lesser General Public 00018 * License along with FFmpeg; if not, write to the Free Software 00019 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00020 */ 00021 00030 #include "avcodec.h" 00031 #include "dsputil.h" 00032 #include "mpegvideo.h" 00033 00034 #include "svq1.h" 00035 #include "svq1enc_cb.h" 00036 00037 #undef NDEBUG 00038 #include <assert.h> 00039 00040 00041 typedef struct SVQ1Context { 00042 MpegEncContext m; // needed for motion estimation, should not be used for anything else, the idea is to make the motion estimation eventually independent of MpegEncContext, so this will be removed then (FIXME/XXX) 00043 AVCodecContext *avctx; 00044 DSPContext dsp; 00045 AVFrame picture; 00046 AVFrame current_picture; 00047 AVFrame last_picture; 00048 PutBitContext pb; 00049 GetBitContext gb; 00050 00051 PutBitContext reorder_pb[6]; //why ooh why this sick breadth first order, everything is slower and more complex 00052 00053 int frame_width; 00054 int frame_height; 00055 00056 /* Y plane block dimensions */ 00057 int y_block_width; 00058 int y_block_height; 00059 00060 /* U & V plane (C planes) block dimensions */ 00061 int c_block_width; 00062 int c_block_height; 00063 00064 uint16_t *mb_type; 00065 uint32_t *dummy; 00066 int16_t (*motion_val8[3])[2]; 00067 int16_t (*motion_val16[3])[2]; 00068 00069 int64_t rd_total; 00070 00071 uint8_t *scratchbuf; 00072 } SVQ1Context; 00073 00074 static void svq1_write_header(SVQ1Context *s, int frame_type) 00075 { 00076 int i; 00077 00078 /* frame code */ 00079 put_bits(&s->pb, 22, 0x20); 00080 00081 /* temporal reference (sure hope this is a "don't care") */ 00082 put_bits(&s->pb, 8, 0x00); 00083 00084 /* frame type */ 00085 put_bits(&s->pb, 2, frame_type - 1); 00086 00087 if (frame_type == FF_I_TYPE) { 00088 00089 /* no checksum since frame code is 0x20 */ 00090 00091 /* no embedded string either */ 00092 00093 /* output 5 unknown bits (2 + 2 + 1) */ 00094 put_bits(&s->pb, 5, 2); /* 2 needed by quicktime decoder */ 00095 00096 for (i = 0; i < 7; i++) 00097 { 00098 if ((ff_svq1_frame_size_table[i].width == s->frame_width) && 00099 (ff_svq1_frame_size_table[i].height == s->frame_height)) 00100 { 00101 put_bits(&s->pb, 3, i); 00102 break; 00103 } 00104 } 00105 00106 if (i == 7) 00107 { 00108 put_bits(&s->pb, 3, 7); 00109 put_bits(&s->pb, 12, s->frame_width); 00110 put_bits(&s->pb, 12, s->frame_height); 00111 } 00112 } 00113 00114 /* no checksum or extra data (next 2 bits get 0) */ 00115 put_bits(&s->pb, 2, 0); 00116 } 00117 00118 00119 #define QUALITY_THRESHOLD 100 00120 #define THRESHOLD_MULTIPLIER 0.6 00121 00122 #if HAVE_ALTIVEC 00123 #undef vector 00124 #endif 00125 00126 static int encode_block(SVQ1Context *s, uint8_t *src, uint8_t *ref, uint8_t *decoded, int stride, int level, int threshold, int lambda, int intra){ 00127 int count, y, x, i, j, split, best_mean, best_score, best_count; 00128 int best_vector[6]; 00129 int block_sum[7]= {0, 0, 0, 0, 0, 0}; 00130 int w= 2<<((level+2)>>1); 00131 int h= 2<<((level+1)>>1); 00132 int size=w*h; 00133 int16_t block[7][256]; 00134 const int8_t *codebook_sum, *codebook; 00135 const uint16_t (*mean_vlc)[2]; 00136 const uint8_t (*multistage_vlc)[2]; 00137 00138 best_score=0; 00139 //FIXME optimize, this doenst need to be done multiple times 00140 if(intra){ 00141 codebook_sum= svq1_intra_codebook_sum[level]; 00142 codebook= ff_svq1_intra_codebooks[level]; 00143 mean_vlc= ff_svq1_intra_mean_vlc; 00144 multistage_vlc= ff_svq1_intra_multistage_vlc[level]; 00145 for(y=0; y<h; y++){ 00146 for(x=0; x<w; x++){ 00147 int v= src[x + y*stride]; 00148 block[0][x + w*y]= v; 00149 best_score += v*v; 00150 block_sum[0] += v; 00151 } 00152 } 00153 }else{ 00154 codebook_sum= svq1_inter_codebook_sum[level]; 00155 codebook= ff_svq1_inter_codebooks[level]; 00156 mean_vlc= ff_svq1_inter_mean_vlc + 256; 00157 multistage_vlc= ff_svq1_inter_multistage_vlc[level]; 00158 for(y=0; y<h; y++){ 00159 for(x=0; x<w; x++){ 00160 int v= src[x + y*stride] - ref[x + y*stride]; 00161 block[0][x + w*y]= v; 00162 best_score += v*v; 00163 block_sum[0] += v; 00164 } 00165 } 00166 } 00167 00168 best_count=0; 00169 best_score -= ((block_sum[0]*block_sum[0])>>(level+3)); 00170 best_mean= (block_sum[0] + (size>>1)) >> (level+3); 00171 00172 if(level<4){ 00173 for(count=1; count<7; count++){ 00174 int best_vector_score= INT_MAX; 00175 int best_vector_sum=-999, best_vector_mean=-999; 00176 const int stage= count-1; 00177 const int8_t *vector; 00178 00179 for(i=0; i<16; i++){ 00180 int sum= codebook_sum[stage*16 + i]; 00181 int sqr, diff, score; 00182 00183 vector = codebook + stage*size*16 + i*size; 00184 sqr = s->dsp.ssd_int8_vs_int16(vector, block[stage], size); 00185 diff= block_sum[stage] - sum; 00186 score= sqr - ((diff*(int64_t)diff)>>(level+3)); //FIXME 64bit slooow 00187 if(score < best_vector_score){ 00188 int mean= (diff + (size>>1)) >> (level+3); 00189 assert(mean >-300 && mean<300); 00190 mean= av_clip(mean, intra?0:-256, 255); 00191 best_vector_score= score; 00192 best_vector[stage]= i; 00193 best_vector_sum= sum; 00194 best_vector_mean= mean; 00195 } 00196 } 00197 assert(best_vector_mean != -999); 00198 vector= codebook + stage*size*16 + best_vector[stage]*size; 00199 for(j=0; j<size; j++){ 00200 block[stage+1][j] = block[stage][j] - vector[j]; 00201 } 00202 block_sum[stage+1]= block_sum[stage] - best_vector_sum; 00203 best_vector_score += 00204 lambda*(+ 1 + 4*count 00205 + multistage_vlc[1+count][1] 00206 + mean_vlc[best_vector_mean][1]); 00207 00208 if(best_vector_score < best_score){ 00209 best_score= best_vector_score; 00210 best_count= count; 00211 best_mean= best_vector_mean; 00212 } 00213 } 00214 } 00215 00216 split=0; 00217 if(best_score > threshold && level){ 00218 int score=0; 00219 int offset= (level&1) ? stride*h/2 : w/2; 00220 PutBitContext backup[6]; 00221 00222 for(i=level-1; i>=0; i--){ 00223 backup[i]= s->reorder_pb[i]; 00224 } 00225 score += encode_block(s, src , ref , decoded , stride, level-1, threshold>>1, lambda, intra); 00226 score += encode_block(s, src + offset, ref + offset, decoded + offset, stride, level-1, threshold>>1, lambda, intra); 00227 score += lambda; 00228 00229 if(score < best_score){ 00230 best_score= score; 00231 split=1; 00232 }else{ 00233 for(i=level-1; i>=0; i--){ 00234 s->reorder_pb[i]= backup[i]; 00235 } 00236 } 00237 } 00238 if (level > 0) 00239 put_bits(&s->reorder_pb[level], 1, split); 00240 00241 if(!split){ 00242 assert((best_mean >= 0 && best_mean<256) || !intra); 00243 assert(best_mean >= -256 && best_mean<256); 00244 assert(best_count >=0 && best_count<7); 00245 assert(level<4 || best_count==0); 00246 00247 /* output the encoding */ 00248 put_bits(&s->reorder_pb[level], 00249 multistage_vlc[1 + best_count][1], 00250 multistage_vlc[1 + best_count][0]); 00251 put_bits(&s->reorder_pb[level], mean_vlc[best_mean][1], 00252 mean_vlc[best_mean][0]); 00253 00254 for (i = 0; i < best_count; i++){ 00255 assert(best_vector[i]>=0 && best_vector[i]<16); 00256 put_bits(&s->reorder_pb[level], 4, best_vector[i]); 00257 } 00258 00259 for(y=0; y<h; y++){ 00260 for(x=0; x<w; x++){ 00261 decoded[x + y*stride]= src[x + y*stride] - block[best_count][x + w*y] + best_mean; 00262 } 00263 } 00264 } 00265 00266 return best_score; 00267 } 00268 00269 00270 static int svq1_encode_plane(SVQ1Context *s, int plane, unsigned char *src_plane, unsigned char *ref_plane, unsigned char *decoded_plane, 00271 int width, int height, int src_stride, int stride) 00272 { 00273 int x, y; 00274 int i; 00275 int block_width, block_height; 00276 int level; 00277 int threshold[6]; 00278 const int lambda= (s->picture.quality*s->picture.quality) >> (2*FF_LAMBDA_SHIFT); 00279 00280 /* figure out the acceptable level thresholds in advance */ 00281 threshold[5] = QUALITY_THRESHOLD; 00282 for (level = 4; level >= 0; level--) 00283 threshold[level] = threshold[level + 1] * THRESHOLD_MULTIPLIER; 00284 00285 block_width = (width + 15) / 16; 00286 block_height = (height + 15) / 16; 00287 00288 if(s->picture.pict_type == FF_P_TYPE){ 00289 s->m.avctx= s->avctx; 00290 s->m.current_picture_ptr= &s->m.current_picture; 00291 s->m.last_picture_ptr = &s->m.last_picture; 00292 s->m.last_picture.data[0]= ref_plane; 00293 s->m.linesize= 00294 s->m.last_picture.linesize[0]= 00295 s->m.new_picture.linesize[0]= 00296 s->m.current_picture.linesize[0]= stride; 00297 s->m.width= width; 00298 s->m.height= height; 00299 s->m.mb_width= block_width; 00300 s->m.mb_height= block_height; 00301 s->m.mb_stride= s->m.mb_width+1; 00302 s->m.b8_stride= 2*s->m.mb_width+1; 00303 s->m.f_code=1; 00304 s->m.pict_type= s->picture.pict_type; 00305 s->m.me_method= s->avctx->me_method; 00306 s->m.me.scene_change_score=0; 00307 s->m.flags= s->avctx->flags; 00308 // s->m.out_format = FMT_H263; 00309 // s->m.unrestricted_mv= 1; 00310 00311 s->m.lambda= s->picture.quality; 00312 s->m.qscale= (s->m.lambda*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7); 00313 s->m.lambda2= (s->m.lambda*s->m.lambda + FF_LAMBDA_SCALE/2) >> FF_LAMBDA_SHIFT; 00314 00315 if(!s->motion_val8[plane]){ 00316 s->motion_val8 [plane]= av_mallocz((s->m.b8_stride*block_height*2 + 2)*2*sizeof(int16_t)); 00317 s->motion_val16[plane]= av_mallocz((s->m.mb_stride*(block_height + 2) + 1)*2*sizeof(int16_t)); 00318 } 00319 00320 s->m.mb_type= s->mb_type; 00321 00322 //dummies, to avoid segfaults 00323 s->m.current_picture.mb_mean= (uint8_t *)s->dummy; 00324 s->m.current_picture.mb_var= (uint16_t*)s->dummy; 00325 s->m.current_picture.mc_mb_var= (uint16_t*)s->dummy; 00326 s->m.current_picture.mb_type= s->dummy; 00327 00328 s->m.current_picture.motion_val[0]= s->motion_val8[plane] + 2; 00329 s->m.p_mv_table= s->motion_val16[plane] + s->m.mb_stride + 1; 00330 s->m.dsp= s->dsp; //move 00331 ff_init_me(&s->m); 00332 00333 s->m.me.dia_size= s->avctx->dia_size; 00334 s->m.first_slice_line=1; 00335 for (y = 0; y < block_height; y++) { 00336 uint8_t src[stride*16]; 00337 00338 s->m.new_picture.data[0]= src - y*16*stride; //ugly 00339 s->m.mb_y= y; 00340 00341 for(i=0; i<16 && i + 16*y<height; i++){ 00342 memcpy(&src[i*stride], &src_plane[(i+16*y)*src_stride], width); 00343 for(x=width; x<16*block_width; x++) 00344 src[i*stride+x]= src[i*stride+x-1]; 00345 } 00346 for(; i<16 && i + 16*y<16*block_height; i++) 00347 memcpy(&src[i*stride], &src[(i-1)*stride], 16*block_width); 00348 00349 for (x = 0; x < block_width; x++) { 00350 s->m.mb_x= x; 00351 ff_init_block_index(&s->m); 00352 ff_update_block_index(&s->m); 00353 00354 ff_estimate_p_frame_motion(&s->m, x, y); 00355 } 00356 s->m.first_slice_line=0; 00357 } 00358 00359 ff_fix_long_p_mvs(&s->m); 00360 ff_fix_long_mvs(&s->m, NULL, 0, s->m.p_mv_table, s->m.f_code, CANDIDATE_MB_TYPE_INTER, 0); 00361 } 00362 00363 s->m.first_slice_line=1; 00364 for (y = 0; y < block_height; y++) { 00365 uint8_t src[stride*16]; 00366 00367 for(i=0; i<16 && i + 16*y<height; i++){ 00368 memcpy(&src[i*stride], &src_plane[(i+16*y)*src_stride], width); 00369 for(x=width; x<16*block_width; x++) 00370 src[i*stride+x]= src[i*stride+x-1]; 00371 } 00372 for(; i<16 && i + 16*y<16*block_height; i++) 00373 memcpy(&src[i*stride], &src[(i-1)*stride], 16*block_width); 00374 00375 s->m.mb_y= y; 00376 for (x = 0; x < block_width; x++) { 00377 uint8_t reorder_buffer[3][6][7*32]; 00378 int count[3][6]; 00379 int offset = y * 16 * stride + x * 16; 00380 uint8_t *decoded= decoded_plane + offset; 00381 uint8_t *ref= ref_plane + offset; 00382 int score[4]={0,0,0,0}, best; 00383 uint8_t *temp = s->scratchbuf; 00384 00385 if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < 3000){ //FIXME check size 00386 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n"); 00387 return -1; 00388 } 00389 00390 s->m.mb_x= x; 00391 ff_init_block_index(&s->m); 00392 ff_update_block_index(&s->m); 00393 00394 if(s->picture.pict_type == FF_I_TYPE || (s->m.mb_type[x + y*s->m.mb_stride]&CANDIDATE_MB_TYPE_INTRA)){ 00395 for(i=0; i<6; i++){ 00396 init_put_bits(&s->reorder_pb[i], reorder_buffer[0][i], 7*32); 00397 } 00398 if(s->picture.pict_type == FF_P_TYPE){ 00399 const uint8_t *vlc= ff_svq1_block_type_vlc[SVQ1_BLOCK_INTRA]; 00400 put_bits(&s->reorder_pb[5], vlc[1], vlc[0]); 00401 score[0]= vlc[1]*lambda; 00402 } 00403 score[0]+= encode_block(s, src+16*x, NULL, temp, stride, 5, 64, lambda, 1); 00404 for(i=0; i<6; i++){ 00405 count[0][i]= put_bits_count(&s->reorder_pb[i]); 00406 flush_put_bits(&s->reorder_pb[i]); 00407 } 00408 }else 00409 score[0]= INT_MAX; 00410 00411 best=0; 00412 00413 if(s->picture.pict_type == FF_P_TYPE){ 00414 const uint8_t *vlc= ff_svq1_block_type_vlc[SVQ1_BLOCK_INTER]; 00415 int mx, my, pred_x, pred_y, dxy; 00416 int16_t *motion_ptr; 00417 00418 motion_ptr= h263_pred_motion(&s->m, 0, 0, &pred_x, &pred_y); 00419 if(s->m.mb_type[x + y*s->m.mb_stride]&CANDIDATE_MB_TYPE_INTER){ 00420 for(i=0; i<6; i++) 00421 init_put_bits(&s->reorder_pb[i], reorder_buffer[1][i], 7*32); 00422 00423 put_bits(&s->reorder_pb[5], vlc[1], vlc[0]); 00424 00425 s->m.pb= s->reorder_pb[5]; 00426 mx= motion_ptr[0]; 00427 my= motion_ptr[1]; 00428 assert(mx>=-32 && mx<=31); 00429 assert(my>=-32 && my<=31); 00430 assert(pred_x>=-32 && pred_x<=31); 00431 assert(pred_y>=-32 && pred_y<=31); 00432 ff_h263_encode_motion(&s->m, mx - pred_x, 1); 00433 ff_h263_encode_motion(&s->m, my - pred_y, 1); 00434 s->reorder_pb[5]= s->m.pb; 00435 score[1] += lambda*put_bits_count(&s->reorder_pb[5]); 00436 00437 dxy= (mx&1) + 2*(my&1); 00438 00439 s->dsp.put_pixels_tab[0][dxy](temp+16, ref + (mx>>1) + stride*(my>>1), stride, 16); 00440 00441 score[1]+= encode_block(s, src+16*x, temp+16, decoded, stride, 5, 64, lambda, 0); 00442 best= score[1] <= score[0]; 00443 00444 vlc= ff_svq1_block_type_vlc[SVQ1_BLOCK_SKIP]; 00445 score[2]= s->dsp.sse[0](NULL, src+16*x, ref, stride, 16); 00446 score[2]+= vlc[1]*lambda; 00447 if(score[2] < score[best] && mx==0 && my==0){ 00448 best=2; 00449 s->dsp.put_pixels_tab[0][0](decoded, ref, stride, 16); 00450 for(i=0; i<6; i++){ 00451 count[2][i]=0; 00452 } 00453 put_bits(&s->pb, vlc[1], vlc[0]); 00454 } 00455 } 00456 00457 if(best==1){ 00458 for(i=0; i<6; i++){ 00459 count[1][i]= put_bits_count(&s->reorder_pb[i]); 00460 flush_put_bits(&s->reorder_pb[i]); 00461 } 00462 }else{ 00463 motion_ptr[0 ] = motion_ptr[1 ]= 00464 motion_ptr[2 ] = motion_ptr[3 ]= 00465 motion_ptr[0+2*s->m.b8_stride] = motion_ptr[1+2*s->m.b8_stride]= 00466 motion_ptr[2+2*s->m.b8_stride] = motion_ptr[3+2*s->m.b8_stride]=0; 00467 } 00468 } 00469 00470 s->rd_total += score[best]; 00471 00472 for(i=5; i>=0; i--){ 00473 ff_copy_bits(&s->pb, reorder_buffer[best][i], count[best][i]); 00474 } 00475 if(best==0){ 00476 s->dsp.put_pixels_tab[0][0](decoded, temp, stride, 16); 00477 } 00478 } 00479 s->m.first_slice_line=0; 00480 } 00481 return 0; 00482 } 00483 00484 static av_cold int svq1_encode_init(AVCodecContext *avctx) 00485 { 00486 SVQ1Context * const s = avctx->priv_data; 00487 00488 dsputil_init(&s->dsp, avctx); 00489 avctx->coded_frame= (AVFrame*)&s->picture; 00490 00491 s->frame_width = avctx->width; 00492 s->frame_height = avctx->height; 00493 00494 s->y_block_width = (s->frame_width + 15) / 16; 00495 s->y_block_height = (s->frame_height + 15) / 16; 00496 00497 s->c_block_width = (s->frame_width / 4 + 15) / 16; 00498 s->c_block_height = (s->frame_height / 4 + 15) / 16; 00499 00500 s->avctx= avctx; 00501 s->m.avctx= avctx; 00502 s->m.me.scratchpad= av_mallocz((avctx->width+64)*2*16*2*sizeof(uint8_t)); 00503 s->m.me.map = av_mallocz(ME_MAP_SIZE*sizeof(uint32_t)); 00504 s->m.me.score_map = av_mallocz(ME_MAP_SIZE*sizeof(uint32_t)); 00505 s->mb_type = av_mallocz((s->y_block_width+1)*s->y_block_height*sizeof(int16_t)); 00506 s->dummy = av_mallocz((s->y_block_width+1)*s->y_block_height*sizeof(int32_t)); 00507 h263_encode_init(&s->m); //mv_penalty 00508 00509 return 0; 00510 } 00511 00512 static int svq1_encode_frame(AVCodecContext *avctx, unsigned char *buf, 00513 int buf_size, void *data) 00514 { 00515 SVQ1Context * const s = avctx->priv_data; 00516 AVFrame *pict = data; 00517 AVFrame * const p= (AVFrame*)&s->picture; 00518 AVFrame temp; 00519 int i; 00520 00521 if(avctx->pix_fmt != PIX_FMT_YUV410P){ 00522 av_log(avctx, AV_LOG_ERROR, "unsupported pixel format\n"); 00523 return -1; 00524 } 00525 00526 if(!s->current_picture.data[0]){ 00527 avctx->get_buffer(avctx, &s->current_picture); 00528 avctx->get_buffer(avctx, &s->last_picture); 00529 s->scratchbuf = av_malloc(s->current_picture.linesize[0] * 16); 00530 } 00531 00532 temp= s->current_picture; 00533 s->current_picture= s->last_picture; 00534 s->last_picture= temp; 00535 00536 init_put_bits(&s->pb, buf, buf_size); 00537 00538 *p = *pict; 00539 p->pict_type = avctx->gop_size && avctx->frame_number % avctx->gop_size ? FF_P_TYPE : FF_I_TYPE; 00540 p->key_frame = p->pict_type == FF_I_TYPE; 00541 00542 svq1_write_header(s, p->pict_type); 00543 for(i=0; i<3; i++){ 00544 if(svq1_encode_plane(s, i, 00545 s->picture.data[i], s->last_picture.data[i], s->current_picture.data[i], 00546 s->frame_width / (i?4:1), s->frame_height / (i?4:1), 00547 s->picture.linesize[i], s->current_picture.linesize[i]) < 0) 00548 return -1; 00549 } 00550 00551 // align_put_bits(&s->pb); 00552 while(put_bits_count(&s->pb) & 31) 00553 put_bits(&s->pb, 1, 0); 00554 00555 flush_put_bits(&s->pb); 00556 00557 return put_bits_count(&s->pb) / 8; 00558 } 00559 00560 static av_cold int svq1_encode_end(AVCodecContext *avctx) 00561 { 00562 SVQ1Context * const s = avctx->priv_data; 00563 int i; 00564 00565 av_log(avctx, AV_LOG_DEBUG, "RD: %f\n", s->rd_total/(double)(avctx->width*avctx->height*avctx->frame_number)); 00566 00567 av_freep(&s->m.me.scratchpad); 00568 av_freep(&s->m.me.map); 00569 av_freep(&s->m.me.score_map); 00570 av_freep(&s->mb_type); 00571 av_freep(&s->dummy); 00572 av_freep(&s->scratchbuf); 00573 00574 for(i=0; i<3; i++){ 00575 av_freep(&s->motion_val8[i]); 00576 av_freep(&s->motion_val16[i]); 00577 } 00578 00579 return 0; 00580 } 00581 00582 00583 AVCodec svq1_encoder = { 00584 "svq1", 00585 CODEC_TYPE_VIDEO, 00586 CODEC_ID_SVQ1, 00587 sizeof(SVQ1Context), 00588 svq1_encode_init, 00589 svq1_encode_frame, 00590 svq1_encode_end, 00591 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV410P, PIX_FMT_NONE}, 00592 .long_name= NULL_IF_CONFIG_SMALL("Sorenson Vector Quantizer 1"), 00593 };