Libav 0.7.1
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00001 /* 00002 * The simplest mpeg encoder (well, it was the simplest!) 00003 * Copyright (c) 2000,2001 Fabrice Bellard 00004 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at> 00005 * 00006 * 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at> 00007 * 00008 * This file is part of Libav. 00009 * 00010 * Libav is free software; you can redistribute it and/or 00011 * modify it under the terms of the GNU Lesser General Public 00012 * License as published by the Free Software Foundation; either 00013 * version 2.1 of the License, or (at your option) any later version. 00014 * 00015 * Libav is distributed in the hope that it will be useful, 00016 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00017 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00018 * Lesser General Public License for more details. 00019 * 00020 * You should have received a copy of the GNU Lesser General Public 00021 * License along with Libav; if not, write to the Free Software 00022 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00023 */ 00024 00030 #include "libavutil/intmath.h" 00031 #include "avcodec.h" 00032 #include "dsputil.h" 00033 #include "mpegvideo.h" 00034 #include "mpegvideo_common.h" 00035 #include "h263.h" 00036 #include "mjpegenc.h" 00037 #include "msmpeg4.h" 00038 #include "faandct.h" 00039 #include "thread.h" 00040 #include "aandcttab.h" 00041 #include "flv.h" 00042 #include "mpeg4video.h" 00043 #include "internal.h" 00044 #include <limits.h> 00045 00046 //#undef NDEBUG 00047 //#include <assert.h> 00048 00049 static int encode_picture(MpegEncContext *s, int picture_number); 00050 static int dct_quantize_refine(MpegEncContext *s, DCTELEM *block, int16_t *weight, DCTELEM *orig, int n, int qscale); 00051 static int sse_mb(MpegEncContext *s); 00052 static void denoise_dct_c(MpegEncContext *s, DCTELEM *block); 00053 static int dct_quantize_trellis_c(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow); 00054 00055 /* enable all paranoid tests for rounding, overflows, etc... */ 00056 //#define PARANOID 00057 00058 //#define DEBUG 00059 00060 static uint8_t default_mv_penalty[MAX_FCODE+1][MAX_MV*2+1]; 00061 static uint8_t default_fcode_tab[MAX_MV*2+1]; 00062 00063 void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64], 00064 const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra) 00065 { 00066 int qscale; 00067 int shift=0; 00068 00069 for(qscale=qmin; qscale<=qmax; qscale++){ 00070 int i; 00071 if (dsp->fdct == ff_jpeg_fdct_islow 00072 #ifdef FAAN_POSTSCALE 00073 || dsp->fdct == ff_faandct 00074 #endif 00075 ) { 00076 for(i=0;i<64;i++) { 00077 const int j= dsp->idct_permutation[i]; 00078 /* 16 <= qscale * quant_matrix[i] <= 7905 */ 00079 /* 19952 <= ff_aanscales[i] * qscale * quant_matrix[i] <= 249205026 */ 00080 /* (1 << 36) / 19952 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= (1 << 36) / 249205026 */ 00081 /* 3444240 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= 275 */ 00082 00083 qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) / 00084 (qscale * quant_matrix[j])); 00085 } 00086 } else if (dsp->fdct == fdct_ifast 00087 #ifndef FAAN_POSTSCALE 00088 || dsp->fdct == ff_faandct 00089 #endif 00090 ) { 00091 for(i=0;i<64;i++) { 00092 const int j= dsp->idct_permutation[i]; 00093 /* 16 <= qscale * quant_matrix[i] <= 7905 */ 00094 /* 19952 <= ff_aanscales[i] * qscale * quant_matrix[i] <= 249205026 */ 00095 /* (1 << 36) / 19952 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */ 00096 /* 3444240 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= 275 */ 00097 00098 qmat[qscale][i] = (int)((UINT64_C(1) << (QMAT_SHIFT + 14)) / 00099 (ff_aanscales[i] * qscale * quant_matrix[j])); 00100 } 00101 } else { 00102 for(i=0;i<64;i++) { 00103 const int j= dsp->idct_permutation[i]; 00104 /* We can safely suppose that 16 <= quant_matrix[i] <= 255 00105 So 16 <= qscale * quant_matrix[i] <= 7905 00106 so (1<<19) / 16 >= (1<<19) / (qscale * quant_matrix[i]) >= (1<<19) / 7905 00107 so 32768 >= (1<<19) / (qscale * quant_matrix[i]) >= 67 00108 */ 00109 qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) / (qscale * quant_matrix[j])); 00110 // qmat [qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[i]); 00111 qmat16[qscale][0][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[j]); 00112 00113 if(qmat16[qscale][0][i]==0 || qmat16[qscale][0][i]==128*256) qmat16[qscale][0][i]=128*256-1; 00114 qmat16[qscale][1][i]= ROUNDED_DIV(bias<<(16-QUANT_BIAS_SHIFT), qmat16[qscale][0][i]); 00115 } 00116 } 00117 00118 for(i=intra; i<64; i++){ 00119 int64_t max= 8191; 00120 if (dsp->fdct == fdct_ifast 00121 #ifndef FAAN_POSTSCALE 00122 || dsp->fdct == ff_faandct 00123 #endif 00124 ) { 00125 max = (8191LL*ff_aanscales[i]) >> 14; 00126 } 00127 while(((max * qmat[qscale][i]) >> shift) > INT_MAX){ 00128 shift++; 00129 } 00130 } 00131 } 00132 if(shift){ 00133 av_log(NULL, AV_LOG_INFO, "Warning, QMAT_SHIFT is larger than %d, overflows possible\n", QMAT_SHIFT - shift); 00134 } 00135 } 00136 00137 static inline void update_qscale(MpegEncContext *s){ 00138 s->qscale= (s->lambda*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7); 00139 s->qscale= av_clip(s->qscale, s->avctx->qmin, s->avctx->qmax); 00140 00141 s->lambda2= (s->lambda*s->lambda + FF_LAMBDA_SCALE/2) >> FF_LAMBDA_SHIFT; 00142 } 00143 00144 void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix){ 00145 int i; 00146 00147 if(matrix){ 00148 put_bits(pb, 1, 1); 00149 for(i=0;i<64;i++) { 00150 put_bits(pb, 8, matrix[ ff_zigzag_direct[i] ]); 00151 } 00152 }else 00153 put_bits(pb, 1, 0); 00154 } 00155 00159 void ff_init_qscale_tab(MpegEncContext *s){ 00160 int8_t * const qscale_table= s->current_picture.qscale_table; 00161 int i; 00162 00163 for(i=0; i<s->mb_num; i++){ 00164 unsigned int lam= s->lambda_table[ s->mb_index2xy[i] ]; 00165 int qp= (lam*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7); 00166 qscale_table[ s->mb_index2xy[i] ]= av_clip(qp, s->avctx->qmin, s->avctx->qmax); 00167 } 00168 } 00169 00170 static void copy_picture_attributes(MpegEncContext *s, AVFrame *dst, AVFrame *src){ 00171 int i; 00172 00173 dst->pict_type = src->pict_type; 00174 dst->quality = src->quality; 00175 dst->coded_picture_number = src->coded_picture_number; 00176 dst->display_picture_number = src->display_picture_number; 00177 // dst->reference = src->reference; 00178 dst->pts = src->pts; 00179 dst->interlaced_frame = src->interlaced_frame; 00180 dst->top_field_first = src->top_field_first; 00181 00182 if(s->avctx->me_threshold){ 00183 if(!src->motion_val[0]) 00184 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_val not set!\n"); 00185 if(!src->mb_type) 00186 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.mb_type not set!\n"); 00187 if(!src->ref_index[0]) 00188 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.ref_index not set!\n"); 00189 if(src->motion_subsample_log2 != dst->motion_subsample_log2) 00190 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_subsample_log2 doesn't match! (%d!=%d)\n", 00191 src->motion_subsample_log2, dst->motion_subsample_log2); 00192 00193 memcpy(dst->mb_type, src->mb_type, s->mb_stride * s->mb_height * sizeof(dst->mb_type[0])); 00194 00195 for(i=0; i<2; i++){ 00196 int stride= ((16*s->mb_width )>>src->motion_subsample_log2) + 1; 00197 int height= ((16*s->mb_height)>>src->motion_subsample_log2); 00198 00199 if(src->motion_val[i] && src->motion_val[i] != dst->motion_val[i]){ 00200 memcpy(dst->motion_val[i], src->motion_val[i], 2*stride*height*sizeof(int16_t)); 00201 } 00202 if(src->ref_index[i] && src->ref_index[i] != dst->ref_index[i]){ 00203 memcpy(dst->ref_index[i], src->ref_index[i], s->mb_stride*4*s->mb_height*sizeof(int8_t)); 00204 } 00205 } 00206 } 00207 } 00208 00209 static void update_duplicate_context_after_me(MpegEncContext *dst, MpegEncContext *src){ 00210 #define COPY(a) dst->a= src->a 00211 COPY(pict_type); 00212 COPY(current_picture); 00213 COPY(f_code); 00214 COPY(b_code); 00215 COPY(qscale); 00216 COPY(lambda); 00217 COPY(lambda2); 00218 COPY(picture_in_gop_number); 00219 COPY(gop_picture_number); 00220 COPY(frame_pred_frame_dct); //FIXME don't set in encode_header 00221 COPY(progressive_frame); //FIXME don't set in encode_header 00222 COPY(partitioned_frame); //FIXME don't set in encode_header 00223 #undef COPY 00224 } 00225 00230 static void MPV_encode_defaults(MpegEncContext *s){ 00231 int i; 00232 MPV_common_defaults(s); 00233 00234 for(i=-16; i<16; i++){ 00235 default_fcode_tab[i + MAX_MV]= 1; 00236 } 00237 s->me.mv_penalty= default_mv_penalty; 00238 s->fcode_tab= default_fcode_tab; 00239 } 00240 00241 /* init video encoder */ 00242 av_cold int MPV_encode_init(AVCodecContext *avctx) 00243 { 00244 MpegEncContext *s = avctx->priv_data; 00245 int i; 00246 int chroma_h_shift, chroma_v_shift; 00247 00248 MPV_encode_defaults(s); 00249 00250 switch (avctx->codec_id) { 00251 case CODEC_ID_MPEG2VIDEO: 00252 if(avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P){ 00253 av_log(avctx, AV_LOG_ERROR, "only YUV420 and YUV422 are supported\n"); 00254 return -1; 00255 } 00256 break; 00257 case CODEC_ID_LJPEG: 00258 if(avctx->pix_fmt != PIX_FMT_YUVJ420P && avctx->pix_fmt != PIX_FMT_YUVJ422P && avctx->pix_fmt != PIX_FMT_YUVJ444P && avctx->pix_fmt != PIX_FMT_BGRA && 00259 ((avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P && avctx->pix_fmt != PIX_FMT_YUV444P) || avctx->strict_std_compliance>FF_COMPLIANCE_UNOFFICIAL)){ 00260 av_log(avctx, AV_LOG_ERROR, "colorspace not supported in LJPEG\n"); 00261 return -1; 00262 } 00263 break; 00264 case CODEC_ID_MJPEG: 00265 if(avctx->pix_fmt != PIX_FMT_YUVJ420P && avctx->pix_fmt != PIX_FMT_YUVJ422P && 00266 ((avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P) || avctx->strict_std_compliance>FF_COMPLIANCE_UNOFFICIAL)){ 00267 av_log(avctx, AV_LOG_ERROR, "colorspace not supported in jpeg\n"); 00268 return -1; 00269 } 00270 break; 00271 default: 00272 if(avctx->pix_fmt != PIX_FMT_YUV420P){ 00273 av_log(avctx, AV_LOG_ERROR, "only YUV420 is supported\n"); 00274 return -1; 00275 } 00276 } 00277 00278 switch (avctx->pix_fmt) { 00279 case PIX_FMT_YUVJ422P: 00280 case PIX_FMT_YUV422P: 00281 s->chroma_format = CHROMA_422; 00282 break; 00283 case PIX_FMT_YUVJ420P: 00284 case PIX_FMT_YUV420P: 00285 default: 00286 s->chroma_format = CHROMA_420; 00287 break; 00288 } 00289 00290 s->bit_rate = avctx->bit_rate; 00291 s->width = avctx->width; 00292 s->height = avctx->height; 00293 if(avctx->gop_size > 600 && avctx->strict_std_compliance>FF_COMPLIANCE_EXPERIMENTAL){ 00294 av_log(avctx, AV_LOG_ERROR, "Warning keyframe interval too large! reducing it ...\n"); 00295 avctx->gop_size=600; 00296 } 00297 s->gop_size = avctx->gop_size; 00298 s->avctx = avctx; 00299 s->flags= avctx->flags; 00300 s->flags2= avctx->flags2; 00301 s->max_b_frames= avctx->max_b_frames; 00302 s->codec_id= avctx->codec->id; 00303 s->luma_elim_threshold = avctx->luma_elim_threshold; 00304 s->chroma_elim_threshold= avctx->chroma_elim_threshold; 00305 s->strict_std_compliance= avctx->strict_std_compliance; 00306 s->data_partitioning= avctx->flags & CODEC_FLAG_PART; 00307 s->quarter_sample= (avctx->flags & CODEC_FLAG_QPEL)!=0; 00308 s->mpeg_quant= avctx->mpeg_quant; 00309 s->rtp_mode= !!avctx->rtp_payload_size; 00310 s->intra_dc_precision= avctx->intra_dc_precision; 00311 s->user_specified_pts = AV_NOPTS_VALUE; 00312 00313 if (s->gop_size <= 1) { 00314 s->intra_only = 1; 00315 s->gop_size = 12; 00316 } else { 00317 s->intra_only = 0; 00318 } 00319 00320 s->me_method = avctx->me_method; 00321 00322 /* Fixed QSCALE */ 00323 s->fixed_qscale = !!(avctx->flags & CODEC_FLAG_QSCALE); 00324 00325 s->adaptive_quant= ( s->avctx->lumi_masking 00326 || s->avctx->dark_masking 00327 || s->avctx->temporal_cplx_masking 00328 || s->avctx->spatial_cplx_masking 00329 || s->avctx->p_masking 00330 || s->avctx->border_masking 00331 || (s->flags&CODEC_FLAG_QP_RD)) 00332 && !s->fixed_qscale; 00333 00334 s->obmc= !!(s->flags & CODEC_FLAG_OBMC); 00335 s->loop_filter= !!(s->flags & CODEC_FLAG_LOOP_FILTER); 00336 s->alternate_scan= !!(s->flags & CODEC_FLAG_ALT_SCAN); 00337 s->intra_vlc_format= !!(s->flags2 & CODEC_FLAG2_INTRA_VLC); 00338 s->q_scale_type= !!(s->flags2 & CODEC_FLAG2_NON_LINEAR_QUANT); 00339 00340 if(avctx->rc_max_rate && !avctx->rc_buffer_size){ 00341 av_log(avctx, AV_LOG_ERROR, "a vbv buffer size is needed, for encoding with a maximum bitrate\n"); 00342 return -1; 00343 } 00344 00345 if(avctx->rc_min_rate && avctx->rc_max_rate != avctx->rc_min_rate){ 00346 av_log(avctx, AV_LOG_INFO, "Warning min_rate > 0 but min_rate != max_rate isn't recommended!\n"); 00347 } 00348 00349 if(avctx->rc_min_rate && avctx->rc_min_rate > avctx->bit_rate){ 00350 av_log(avctx, AV_LOG_ERROR, "bitrate below min bitrate\n"); 00351 return -1; 00352 } 00353 00354 if(avctx->rc_max_rate && avctx->rc_max_rate < avctx->bit_rate){ 00355 av_log(avctx, AV_LOG_INFO, "bitrate above max bitrate\n"); 00356 return -1; 00357 } 00358 00359 if(avctx->rc_max_rate && avctx->rc_max_rate == avctx->bit_rate && avctx->rc_max_rate != avctx->rc_min_rate){ 00360 av_log(avctx, AV_LOG_INFO, "impossible bitrate constraints, this will fail\n"); 00361 } 00362 00363 if(avctx->rc_buffer_size && avctx->bit_rate*(int64_t)avctx->time_base.num > avctx->rc_buffer_size * (int64_t)avctx->time_base.den){ 00364 av_log(avctx, AV_LOG_ERROR, "VBV buffer too small for bitrate\n"); 00365 return -1; 00366 } 00367 00368 if(!s->fixed_qscale && avctx->bit_rate*av_q2d(avctx->time_base) > avctx->bit_rate_tolerance){ 00369 av_log(avctx, AV_LOG_ERROR, "bitrate tolerance too small for bitrate\n"); 00370 return -1; 00371 } 00372 00373 if( s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate 00374 && (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO) 00375 && 90000LL * (avctx->rc_buffer_size-1) > s->avctx->rc_max_rate*0xFFFFLL){ 00376 00377 av_log(avctx, AV_LOG_INFO, "Warning vbv_delay will be set to 0xFFFF (=VBR) as the specified vbv buffer is too large for the given bitrate!\n"); 00378 } 00379 00380 if((s->flags & CODEC_FLAG_4MV) && s->codec_id != CODEC_ID_MPEG4 00381 && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P && s->codec_id != CODEC_ID_FLV1){ 00382 av_log(avctx, AV_LOG_ERROR, "4MV not supported by codec\n"); 00383 return -1; 00384 } 00385 00386 if(s->obmc && s->avctx->mb_decision != FF_MB_DECISION_SIMPLE){ 00387 av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with simple mb decision\n"); 00388 return -1; 00389 } 00390 00391 if(s->obmc && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P){ 00392 av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with H263(+)\n"); 00393 return -1; 00394 } 00395 00396 if(s->quarter_sample && s->codec_id != CODEC_ID_MPEG4){ 00397 av_log(avctx, AV_LOG_ERROR, "qpel not supported by codec\n"); 00398 return -1; 00399 } 00400 00401 if(s->data_partitioning && s->codec_id != CODEC_ID_MPEG4){ 00402 av_log(avctx, AV_LOG_ERROR, "data partitioning not supported by codec\n"); 00403 return -1; 00404 } 00405 00406 if(s->max_b_frames && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO){ 00407 av_log(avctx, AV_LOG_ERROR, "b frames not supported by codec\n"); 00408 return -1; 00409 } 00410 00411 if ((s->codec_id == CODEC_ID_MPEG4 || s->codec_id == CODEC_ID_H263 || 00412 s->codec_id == CODEC_ID_H263P) && 00413 (avctx->sample_aspect_ratio.num > 255 || avctx->sample_aspect_ratio.den > 255)) { 00414 av_log(avctx, AV_LOG_ERROR, "Invalid pixel aspect ratio %i/%i, limit is 255/255\n", 00415 avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den); 00416 return -1; 00417 } 00418 00419 if((s->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN)) 00420 && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG2VIDEO){ 00421 av_log(avctx, AV_LOG_ERROR, "interlacing not supported by codec\n"); 00422 return -1; 00423 } 00424 00425 if(s->mpeg_quant && s->codec_id != CODEC_ID_MPEG4){ //FIXME mpeg2 uses that too 00426 av_log(avctx, AV_LOG_ERROR, "mpeg2 style quantization not supported by codec\n"); 00427 return -1; 00428 } 00429 00430 if((s->flags & CODEC_FLAG_CBP_RD) && !avctx->trellis){ 00431 av_log(avctx, AV_LOG_ERROR, "CBP RD needs trellis quant\n"); 00432 return -1; 00433 } 00434 00435 if((s->flags & CODEC_FLAG_QP_RD) && s->avctx->mb_decision != FF_MB_DECISION_RD){ 00436 av_log(avctx, AV_LOG_ERROR, "QP RD needs mbd=2\n"); 00437 return -1; 00438 } 00439 00440 if(s->avctx->scenechange_threshold < 1000000000 && (s->flags & CODEC_FLAG_CLOSED_GOP)){ 00441 av_log(avctx, AV_LOG_ERROR, "closed gop with scene change detection are not supported yet, set threshold to 1000000000\n"); 00442 return -1; 00443 } 00444 00445 if((s->flags2 & CODEC_FLAG2_INTRA_VLC) && s->codec_id != CODEC_ID_MPEG2VIDEO){ 00446 av_log(avctx, AV_LOG_ERROR, "intra vlc table not supported by codec\n"); 00447 return -1; 00448 } 00449 00450 if(s->flags & CODEC_FLAG_LOW_DELAY){ 00451 if (s->codec_id != CODEC_ID_MPEG2VIDEO){ 00452 av_log(avctx, AV_LOG_ERROR, "low delay forcing is only available for mpeg2\n"); 00453 return -1; 00454 } 00455 if (s->max_b_frames != 0){ 00456 av_log(avctx, AV_LOG_ERROR, "b frames cannot be used with low delay\n"); 00457 return -1; 00458 } 00459 } 00460 00461 if(s->q_scale_type == 1){ 00462 if(s->codec_id != CODEC_ID_MPEG2VIDEO){ 00463 av_log(avctx, AV_LOG_ERROR, "non linear quant is only available for mpeg2\n"); 00464 return -1; 00465 } 00466 if(avctx->qmax > 12){ 00467 av_log(avctx, AV_LOG_ERROR, "non linear quant only supports qmax <= 12 currently\n"); 00468 return -1; 00469 } 00470 } 00471 00472 if(s->avctx->thread_count > 1 && s->codec_id != CODEC_ID_MPEG4 00473 && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO 00474 && (s->codec_id != CODEC_ID_H263P || !(s->flags & CODEC_FLAG_H263P_SLICE_STRUCT))){ 00475 av_log(avctx, AV_LOG_ERROR, "multi threaded encoding not supported by codec\n"); 00476 return -1; 00477 } 00478 00479 if(s->avctx->thread_count < 1){ 00480 av_log(avctx, AV_LOG_ERROR, "automatic thread number detection not supported by codec, patch welcome\n"); 00481 return -1; 00482 } 00483 00484 if(s->avctx->thread_count > 1) 00485 s->rtp_mode= 1; 00486 00487 if(!avctx->time_base.den || !avctx->time_base.num){ 00488 av_log(avctx, AV_LOG_ERROR, "framerate not set\n"); 00489 return -1; 00490 } 00491 00492 i= (INT_MAX/2+128)>>8; 00493 if(avctx->me_threshold >= i){ 00494 av_log(avctx, AV_LOG_ERROR, "me_threshold too large, max is %d\n", i - 1); 00495 return -1; 00496 } 00497 if(avctx->mb_threshold >= i){ 00498 av_log(avctx, AV_LOG_ERROR, "mb_threshold too large, max is %d\n", i - 1); 00499 return -1; 00500 } 00501 00502 if(avctx->b_frame_strategy && (avctx->flags&CODEC_FLAG_PASS2)){ 00503 av_log(avctx, AV_LOG_INFO, "notice: b_frame_strategy only affects the first pass\n"); 00504 avctx->b_frame_strategy = 0; 00505 } 00506 00507 i= av_gcd(avctx->time_base.den, avctx->time_base.num); 00508 if(i > 1){ 00509 av_log(avctx, AV_LOG_INFO, "removing common factors from framerate\n"); 00510 avctx->time_base.den /= i; 00511 avctx->time_base.num /= i; 00512 // return -1; 00513 } 00514 00515 if(s->mpeg_quant || s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO || s->codec_id==CODEC_ID_MJPEG){ 00516 s->intra_quant_bias= 3<<(QUANT_BIAS_SHIFT-3); //(a + x*3/8)/x 00517 s->inter_quant_bias= 0; 00518 }else{ 00519 s->intra_quant_bias=0; 00520 s->inter_quant_bias=-(1<<(QUANT_BIAS_SHIFT-2)); //(a - x/4)/x 00521 } 00522 00523 if(avctx->intra_quant_bias != FF_DEFAULT_QUANT_BIAS) 00524 s->intra_quant_bias= avctx->intra_quant_bias; 00525 if(avctx->inter_quant_bias != FF_DEFAULT_QUANT_BIAS) 00526 s->inter_quant_bias= avctx->inter_quant_bias; 00527 00528 avcodec_get_chroma_sub_sample(avctx->pix_fmt, &chroma_h_shift, &chroma_v_shift); 00529 00530 if(avctx->codec_id == CODEC_ID_MPEG4 && s->avctx->time_base.den > (1<<16)-1){ 00531 av_log(avctx, AV_LOG_ERROR, "timebase %d/%d not supported by MPEG 4 standard, " 00532 "the maximum admitted value for the timebase denominator is %d\n", 00533 s->avctx->time_base.num, s->avctx->time_base.den, (1<<16)-1); 00534 return -1; 00535 } 00536 s->time_increment_bits = av_log2(s->avctx->time_base.den - 1) + 1; 00537 00538 switch(avctx->codec->id) { 00539 case CODEC_ID_MPEG1VIDEO: 00540 s->out_format = FMT_MPEG1; 00541 s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY); 00542 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1); 00543 break; 00544 case CODEC_ID_MPEG2VIDEO: 00545 s->out_format = FMT_MPEG1; 00546 s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY); 00547 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1); 00548 s->rtp_mode= 1; 00549 break; 00550 case CODEC_ID_LJPEG: 00551 case CODEC_ID_MJPEG: 00552 s->out_format = FMT_MJPEG; 00553 s->intra_only = 1; /* force intra only for jpeg */ 00554 if(avctx->codec->id == CODEC_ID_LJPEG && avctx->pix_fmt == PIX_FMT_BGRA){ 00555 s->mjpeg_vsample[0] = s->mjpeg_hsample[0] = 00556 s->mjpeg_vsample[1] = s->mjpeg_hsample[1] = 00557 s->mjpeg_vsample[2] = s->mjpeg_hsample[2] = 1; 00558 }else{ 00559 s->mjpeg_vsample[0] = 2; 00560 s->mjpeg_vsample[1] = 2>>chroma_v_shift; 00561 s->mjpeg_vsample[2] = 2>>chroma_v_shift; 00562 s->mjpeg_hsample[0] = 2; 00563 s->mjpeg_hsample[1] = 2>>chroma_h_shift; 00564 s->mjpeg_hsample[2] = 2>>chroma_h_shift; 00565 } 00566 if (!(CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER) 00567 || ff_mjpeg_encode_init(s) < 0) 00568 return -1; 00569 avctx->delay=0; 00570 s->low_delay=1; 00571 break; 00572 case CODEC_ID_H261: 00573 if (!CONFIG_H261_ENCODER) return -1; 00574 if (ff_h261_get_picture_format(s->width, s->height) < 0) { 00575 av_log(avctx, AV_LOG_ERROR, "The specified picture size of %dx%d is not valid for the H.261 codec.\nValid sizes are 176x144, 352x288\n", s->width, s->height); 00576 return -1; 00577 } 00578 s->out_format = FMT_H261; 00579 avctx->delay=0; 00580 s->low_delay=1; 00581 break; 00582 case CODEC_ID_H263: 00583 if (!CONFIG_H263_ENCODER) return -1; 00584 if (ff_match_2uint16(h263_format, FF_ARRAY_ELEMS(h263_format), s->width, s->height) == 8) { 00585 av_log(avctx, AV_LOG_INFO, "The specified picture size of %dx%d is not valid for the H.263 codec.\nValid sizes are 128x96, 176x144, 352x288, 704x576, and 1408x1152. Try H.263+.\n", s->width, s->height); 00586 return -1; 00587 } 00588 s->out_format = FMT_H263; 00589 s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0; 00590 avctx->delay=0; 00591 s->low_delay=1; 00592 break; 00593 case CODEC_ID_H263P: 00594 s->out_format = FMT_H263; 00595 s->h263_plus = 1; 00596 /* Fx */ 00597 s->umvplus = (avctx->flags & CODEC_FLAG_H263P_UMV) ? 1:0; 00598 s->h263_aic= (avctx->flags & CODEC_FLAG_AC_PRED) ? 1:0; 00599 s->modified_quant= s->h263_aic; 00600 s->alt_inter_vlc= (avctx->flags & CODEC_FLAG_H263P_AIV) ? 1:0; 00601 s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0; 00602 s->loop_filter= (avctx->flags & CODEC_FLAG_LOOP_FILTER) ? 1:0; 00603 s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus; 00604 s->h263_slice_structured= (s->flags & CODEC_FLAG_H263P_SLICE_STRUCT) ? 1:0; 00605 00606 /* /Fx */ 00607 /* These are just to be sure */ 00608 avctx->delay=0; 00609 s->low_delay=1; 00610 break; 00611 case CODEC_ID_FLV1: 00612 s->out_format = FMT_H263; 00613 s->h263_flv = 2; /* format = 1; 11-bit codes */ 00614 s->unrestricted_mv = 1; 00615 s->rtp_mode=0; /* don't allow GOB */ 00616 avctx->delay=0; 00617 s->low_delay=1; 00618 break; 00619 case CODEC_ID_RV10: 00620 s->out_format = FMT_H263; 00621 avctx->delay=0; 00622 s->low_delay=1; 00623 break; 00624 case CODEC_ID_RV20: 00625 s->out_format = FMT_H263; 00626 avctx->delay=0; 00627 s->low_delay=1; 00628 s->modified_quant=1; 00629 s->h263_aic=1; 00630 s->h263_plus=1; 00631 s->loop_filter=1; 00632 s->unrestricted_mv= 0; 00633 break; 00634 case CODEC_ID_MPEG4: 00635 s->out_format = FMT_H263; 00636 s->h263_pred = 1; 00637 s->unrestricted_mv = 1; 00638 s->low_delay= s->max_b_frames ? 0 : 1; 00639 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1); 00640 break; 00641 case CODEC_ID_MSMPEG4V2: 00642 s->out_format = FMT_H263; 00643 s->h263_pred = 1; 00644 s->unrestricted_mv = 1; 00645 s->msmpeg4_version= 2; 00646 avctx->delay=0; 00647 s->low_delay=1; 00648 break; 00649 case CODEC_ID_MSMPEG4V3: 00650 s->out_format = FMT_H263; 00651 s->h263_pred = 1; 00652 s->unrestricted_mv = 1; 00653 s->msmpeg4_version= 3; 00654 s->flipflop_rounding=1; 00655 avctx->delay=0; 00656 s->low_delay=1; 00657 break; 00658 case CODEC_ID_WMV1: 00659 s->out_format = FMT_H263; 00660 s->h263_pred = 1; 00661 s->unrestricted_mv = 1; 00662 s->msmpeg4_version= 4; 00663 s->flipflop_rounding=1; 00664 avctx->delay=0; 00665 s->low_delay=1; 00666 break; 00667 case CODEC_ID_WMV2: 00668 s->out_format = FMT_H263; 00669 s->h263_pred = 1; 00670 s->unrestricted_mv = 1; 00671 s->msmpeg4_version= 5; 00672 s->flipflop_rounding=1; 00673 avctx->delay=0; 00674 s->low_delay=1; 00675 break; 00676 default: 00677 return -1; 00678 } 00679 00680 avctx->has_b_frames= !s->low_delay; 00681 00682 s->encoding = 1; 00683 00684 s->progressive_frame= 00685 s->progressive_sequence= !(avctx->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN)); 00686 00687 /* init */ 00688 if (MPV_common_init(s) < 0) 00689 return -1; 00690 00691 if(!s->dct_quantize) 00692 s->dct_quantize = dct_quantize_c; 00693 if(!s->denoise_dct) 00694 s->denoise_dct = denoise_dct_c; 00695 s->fast_dct_quantize = s->dct_quantize; 00696 if(avctx->trellis) 00697 s->dct_quantize = dct_quantize_trellis_c; 00698 00699 if((CONFIG_H263P_ENCODER || CONFIG_RV20_ENCODER) && s->modified_quant) 00700 s->chroma_qscale_table= ff_h263_chroma_qscale_table; 00701 00702 s->quant_precision=5; 00703 00704 ff_set_cmp(&s->dsp, s->dsp.ildct_cmp, s->avctx->ildct_cmp); 00705 ff_set_cmp(&s->dsp, s->dsp.frame_skip_cmp, s->avctx->frame_skip_cmp); 00706 00707 if (CONFIG_H261_ENCODER && s->out_format == FMT_H261) 00708 ff_h261_encode_init(s); 00709 if (CONFIG_H263_ENCODER && s->out_format == FMT_H263) 00710 h263_encode_init(s); 00711 if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version) 00712 ff_msmpeg4_encode_init(s); 00713 if ((CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER) 00714 && s->out_format == FMT_MPEG1) 00715 ff_mpeg1_encode_init(s); 00716 00717 /* init q matrix */ 00718 for(i=0;i<64;i++) { 00719 int j= s->dsp.idct_permutation[i]; 00720 if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->mpeg_quant){ 00721 s->intra_matrix[j] = ff_mpeg4_default_intra_matrix[i]; 00722 s->inter_matrix[j] = ff_mpeg4_default_non_intra_matrix[i]; 00723 }else if(s->out_format == FMT_H263 || s->out_format == FMT_H261){ 00724 s->intra_matrix[j] = 00725 s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i]; 00726 }else 00727 { /* mpeg1/2 */ 00728 s->intra_matrix[j] = ff_mpeg1_default_intra_matrix[i]; 00729 s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i]; 00730 } 00731 if(s->avctx->intra_matrix) 00732 s->intra_matrix[j] = s->avctx->intra_matrix[i]; 00733 if(s->avctx->inter_matrix) 00734 s->inter_matrix[j] = s->avctx->inter_matrix[i]; 00735 } 00736 00737 /* precompute matrix */ 00738 /* for mjpeg, we do include qscale in the matrix */ 00739 if (s->out_format != FMT_MJPEG) { 00740 ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16, 00741 s->intra_matrix, s->intra_quant_bias, avctx->qmin, 31, 1); 00742 ff_convert_matrix(&s->dsp, s->q_inter_matrix, s->q_inter_matrix16, 00743 s->inter_matrix, s->inter_quant_bias, avctx->qmin, 31, 0); 00744 } 00745 00746 if(ff_rate_control_init(s) < 0) 00747 return -1; 00748 00749 return 0; 00750 } 00751 00752 av_cold int MPV_encode_end(AVCodecContext *avctx) 00753 { 00754 MpegEncContext *s = avctx->priv_data; 00755 00756 ff_rate_control_uninit(s); 00757 00758 MPV_common_end(s); 00759 if ((CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER) && s->out_format == FMT_MJPEG) 00760 ff_mjpeg_encode_close(s); 00761 00762 av_freep(&avctx->extradata); 00763 00764 return 0; 00765 } 00766 00767 static int get_sae(uint8_t *src, int ref, int stride){ 00768 int x,y; 00769 int acc=0; 00770 00771 for(y=0; y<16; y++){ 00772 for(x=0; x<16; x++){ 00773 acc+= FFABS(src[x+y*stride] - ref); 00774 } 00775 } 00776 00777 return acc; 00778 } 00779 00780 static int get_intra_count(MpegEncContext *s, uint8_t *src, uint8_t *ref, int stride){ 00781 int x, y, w, h; 00782 int acc=0; 00783 00784 w= s->width &~15; 00785 h= s->height&~15; 00786 00787 for(y=0; y<h; y+=16){ 00788 for(x=0; x<w; x+=16){ 00789 int offset= x + y*stride; 00790 int sad = s->dsp.sad[0](NULL, src + offset, ref + offset, stride, 16); 00791 int mean= (s->dsp.pix_sum(src + offset, stride) + 128)>>8; 00792 int sae = get_sae(src + offset, mean, stride); 00793 00794 acc+= sae + 500 < sad; 00795 } 00796 } 00797 return acc; 00798 } 00799 00800 00801 static int load_input_picture(MpegEncContext *s, AVFrame *pic_arg){ 00802 AVFrame *pic=NULL; 00803 int64_t pts; 00804 int i; 00805 const int encoding_delay= s->max_b_frames; 00806 int direct=1; 00807 00808 if(pic_arg){ 00809 pts= pic_arg->pts; 00810 pic_arg->display_picture_number= s->input_picture_number++; 00811 00812 if(pts != AV_NOPTS_VALUE){ 00813 if(s->user_specified_pts != AV_NOPTS_VALUE){ 00814 int64_t time= pts; 00815 int64_t last= s->user_specified_pts; 00816 00817 if(time <= last){ 00818 av_log(s->avctx, AV_LOG_ERROR, "Error, Invalid timestamp=%"PRId64", last=%"PRId64"\n", pts, s->user_specified_pts); 00819 return -1; 00820 } 00821 } 00822 s->user_specified_pts= pts; 00823 }else{ 00824 if(s->user_specified_pts != AV_NOPTS_VALUE){ 00825 s->user_specified_pts= 00826 pts= s->user_specified_pts + 1; 00827 av_log(s->avctx, AV_LOG_INFO, "Warning: AVFrame.pts=? trying to guess (%"PRId64")\n", pts); 00828 }else{ 00829 pts= pic_arg->display_picture_number; 00830 } 00831 } 00832 } 00833 00834 if(pic_arg){ 00835 if(encoding_delay && !(s->flags&CODEC_FLAG_INPUT_PRESERVED)) direct=0; 00836 if(pic_arg->linesize[0] != s->linesize) direct=0; 00837 if(pic_arg->linesize[1] != s->uvlinesize) direct=0; 00838 if(pic_arg->linesize[2] != s->uvlinesize) direct=0; 00839 00840 // av_log(AV_LOG_DEBUG, "%d %d %d %d\n",pic_arg->linesize[0], pic_arg->linesize[1], s->linesize, s->uvlinesize); 00841 00842 if(direct){ 00843 i= ff_find_unused_picture(s, 1); 00844 00845 pic= (AVFrame*)&s->picture[i]; 00846 pic->reference= 3; 00847 00848 for(i=0; i<4; i++){ 00849 pic->data[i]= pic_arg->data[i]; 00850 pic->linesize[i]= pic_arg->linesize[i]; 00851 } 00852 if(ff_alloc_picture(s, (Picture*)pic, 1) < 0){ 00853 return -1; 00854 } 00855 }else{ 00856 i= ff_find_unused_picture(s, 0); 00857 00858 pic= (AVFrame*)&s->picture[i]; 00859 pic->reference= 3; 00860 00861 if(ff_alloc_picture(s, (Picture*)pic, 0) < 0){ 00862 return -1; 00863 } 00864 00865 if( pic->data[0] + INPLACE_OFFSET == pic_arg->data[0] 00866 && pic->data[1] + INPLACE_OFFSET == pic_arg->data[1] 00867 && pic->data[2] + INPLACE_OFFSET == pic_arg->data[2]){ 00868 // empty 00869 }else{ 00870 int h_chroma_shift, v_chroma_shift; 00871 avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift); 00872 00873 for(i=0; i<3; i++){ 00874 int src_stride= pic_arg->linesize[i]; 00875 int dst_stride= i ? s->uvlinesize : s->linesize; 00876 int h_shift= i ? h_chroma_shift : 0; 00877 int v_shift= i ? v_chroma_shift : 0; 00878 int w= s->width >>h_shift; 00879 int h= s->height>>v_shift; 00880 uint8_t *src= pic_arg->data[i]; 00881 uint8_t *dst= pic->data[i]; 00882 00883 if(!s->avctx->rc_buffer_size) 00884 dst +=INPLACE_OFFSET; 00885 00886 if(src_stride==dst_stride) 00887 memcpy(dst, src, src_stride*h); 00888 else{ 00889 while(h--){ 00890 memcpy(dst, src, w); 00891 dst += dst_stride; 00892 src += src_stride; 00893 } 00894 } 00895 } 00896 } 00897 } 00898 copy_picture_attributes(s, pic, pic_arg); 00899 pic->pts= pts; //we set this here to avoid modifiying pic_arg 00900 } 00901 00902 /* shift buffer entries */ 00903 for(i=1; i<MAX_PICTURE_COUNT /*s->encoding_delay+1*/; i++) 00904 s->input_picture[i-1]= s->input_picture[i]; 00905 00906 s->input_picture[encoding_delay]= (Picture*)pic; 00907 00908 return 0; 00909 } 00910 00911 static int skip_check(MpegEncContext *s, Picture *p, Picture *ref){ 00912 int x, y, plane; 00913 int score=0; 00914 int64_t score64=0; 00915 00916 for(plane=0; plane<3; plane++){ 00917 const int stride= p->linesize[plane]; 00918 const int bw= plane ? 1 : 2; 00919 for(y=0; y<s->mb_height*bw; y++){ 00920 for(x=0; x<s->mb_width*bw; x++){ 00921 int off= p->type == FF_BUFFER_TYPE_SHARED ? 0: 16; 00922 int v= s->dsp.frame_skip_cmp[1](s, p->data[plane] + 8*(x + y*stride)+off, ref->data[plane] + 8*(x + y*stride), stride, 8); 00923 00924 switch(s->avctx->frame_skip_exp){ 00925 case 0: score= FFMAX(score, v); break; 00926 case 1: score+= FFABS(v);break; 00927 case 2: score+= v*v;break; 00928 case 3: score64+= FFABS(v*v*(int64_t)v);break; 00929 case 4: score64+= v*v*(int64_t)(v*v);break; 00930 } 00931 } 00932 } 00933 } 00934 00935 if(score) score64= score; 00936 00937 if(score64 < s->avctx->frame_skip_threshold) 00938 return 1; 00939 if(score64 < ((s->avctx->frame_skip_factor * (int64_t)s->lambda)>>8)) 00940 return 1; 00941 return 0; 00942 } 00943 00944 static int estimate_best_b_count(MpegEncContext *s){ 00945 AVCodec *codec= avcodec_find_encoder(s->avctx->codec_id); 00946 AVCodecContext *c= avcodec_alloc_context(); 00947 AVFrame input[FF_MAX_B_FRAMES+2]; 00948 const int scale= s->avctx->brd_scale; 00949 int i, j, out_size, p_lambda, b_lambda, lambda2; 00950 int outbuf_size= s->width * s->height; //FIXME 00951 uint8_t *outbuf= av_malloc(outbuf_size); 00952 int64_t best_rd= INT64_MAX; 00953 int best_b_count= -1; 00954 00955 assert(scale>=0 && scale <=3); 00956 00957 // emms_c(); 00958 p_lambda= s->last_lambda_for[AV_PICTURE_TYPE_P]; //s->next_picture_ptr->quality; 00959 b_lambda= s->last_lambda_for[AV_PICTURE_TYPE_B]; //p_lambda *FFABS(s->avctx->b_quant_factor) + s->avctx->b_quant_offset; 00960 if(!b_lambda) b_lambda= p_lambda; //FIXME we should do this somewhere else 00961 lambda2= (b_lambda*b_lambda + (1<<FF_LAMBDA_SHIFT)/2 ) >> FF_LAMBDA_SHIFT; 00962 00963 c->width = s->width >> scale; 00964 c->height= s->height>> scale; 00965 c->flags= CODEC_FLAG_QSCALE | CODEC_FLAG_PSNR | CODEC_FLAG_INPUT_PRESERVED /*| CODEC_FLAG_EMU_EDGE*/; 00966 c->flags|= s->avctx->flags & CODEC_FLAG_QPEL; 00967 c->mb_decision= s->avctx->mb_decision; 00968 c->me_cmp= s->avctx->me_cmp; 00969 c->mb_cmp= s->avctx->mb_cmp; 00970 c->me_sub_cmp= s->avctx->me_sub_cmp; 00971 c->pix_fmt = PIX_FMT_YUV420P; 00972 c->time_base= s->avctx->time_base; 00973 c->max_b_frames= s->max_b_frames; 00974 00975 if (avcodec_open2(c, codec, NULL) < 0) 00976 return -1; 00977 00978 for(i=0; i<s->max_b_frames+2; i++){ 00979 int ysize= c->width*c->height; 00980 int csize= (c->width/2)*(c->height/2); 00981 Picture pre_input, *pre_input_ptr= i ? s->input_picture[i-1] : s->next_picture_ptr; 00982 00983 avcodec_get_frame_defaults(&input[i]); 00984 input[i].data[0]= av_malloc(ysize + 2*csize); 00985 input[i].data[1]= input[i].data[0] + ysize; 00986 input[i].data[2]= input[i].data[1] + csize; 00987 input[i].linesize[0]= c->width; 00988 input[i].linesize[1]= 00989 input[i].linesize[2]= c->width/2; 00990 00991 if(pre_input_ptr && (!i || s->input_picture[i-1])) { 00992 pre_input= *pre_input_ptr; 00993 00994 if(pre_input.type != FF_BUFFER_TYPE_SHARED && i) { 00995 pre_input.data[0]+=INPLACE_OFFSET; 00996 pre_input.data[1]+=INPLACE_OFFSET; 00997 pre_input.data[2]+=INPLACE_OFFSET; 00998 } 00999 01000 s->dsp.shrink[scale](input[i].data[0], input[i].linesize[0], pre_input.data[0], pre_input.linesize[0], c->width, c->height); 01001 s->dsp.shrink[scale](input[i].data[1], input[i].linesize[1], pre_input.data[1], pre_input.linesize[1], c->width>>1, c->height>>1); 01002 s->dsp.shrink[scale](input[i].data[2], input[i].linesize[2], pre_input.data[2], pre_input.linesize[2], c->width>>1, c->height>>1); 01003 } 01004 } 01005 01006 for(j=0; j<s->max_b_frames+1; j++){ 01007 int64_t rd=0; 01008 01009 if(!s->input_picture[j]) 01010 break; 01011 01012 c->error[0]= c->error[1]= c->error[2]= 0; 01013 01014 input[0].pict_type= AV_PICTURE_TYPE_I; 01015 input[0].quality= 1 * FF_QP2LAMBDA; 01016 out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[0]); 01017 // rd += (out_size * lambda2) >> FF_LAMBDA_SHIFT; 01018 01019 for(i=0; i<s->max_b_frames+1; i++){ 01020 int is_p= i % (j+1) == j || i==s->max_b_frames; 01021 01022 input[i+1].pict_type= is_p ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_B; 01023 input[i+1].quality= is_p ? p_lambda : b_lambda; 01024 out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[i+1]); 01025 rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3); 01026 } 01027 01028 /* get the delayed frames */ 01029 while(out_size){ 01030 out_size = avcodec_encode_video(c, outbuf, outbuf_size, NULL); 01031 rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3); 01032 } 01033 01034 rd += c->error[0] + c->error[1] + c->error[2]; 01035 01036 if(rd < best_rd){ 01037 best_rd= rd; 01038 best_b_count= j; 01039 } 01040 } 01041 01042 av_freep(&outbuf); 01043 avcodec_close(c); 01044 av_freep(&c); 01045 01046 for(i=0; i<s->max_b_frames+2; i++){ 01047 av_freep(&input[i].data[0]); 01048 } 01049 01050 return best_b_count; 01051 } 01052 01053 static int select_input_picture(MpegEncContext *s){ 01054 int i; 01055 01056 for(i=1; i<MAX_PICTURE_COUNT; i++) 01057 s->reordered_input_picture[i-1]= s->reordered_input_picture[i]; 01058 s->reordered_input_picture[MAX_PICTURE_COUNT-1]= NULL; 01059 01060 /* set next picture type & ordering */ 01061 if(s->reordered_input_picture[0]==NULL && s->input_picture[0]){ 01062 if(/*s->picture_in_gop_number >= s->gop_size ||*/ s->next_picture_ptr==NULL || s->intra_only){ 01063 s->reordered_input_picture[0]= s->input_picture[0]; 01064 s->reordered_input_picture[0]->pict_type= AV_PICTURE_TYPE_I; 01065 s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++; 01066 }else{ 01067 int b_frames; 01068 01069 if(s->avctx->frame_skip_threshold || s->avctx->frame_skip_factor){ 01070 if(s->picture_in_gop_number < s->gop_size && skip_check(s, s->input_picture[0], s->next_picture_ptr)){ 01071 //FIXME check that te gop check above is +-1 correct 01072 //av_log(NULL, AV_LOG_DEBUG, "skip %p %"PRId64"\n", s->input_picture[0]->data[0], s->input_picture[0]->pts); 01073 01074 if(s->input_picture[0]->type == FF_BUFFER_TYPE_SHARED){ 01075 for(i=0; i<4; i++) 01076 s->input_picture[0]->data[i]= NULL; 01077 s->input_picture[0]->type= 0; 01078 }else{ 01079 assert( s->input_picture[0]->type==FF_BUFFER_TYPE_USER 01080 || s->input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL); 01081 01082 s->avctx->release_buffer(s->avctx, (AVFrame*)s->input_picture[0]); 01083 } 01084 01085 emms_c(); 01086 ff_vbv_update(s, 0); 01087 01088 goto no_output_pic; 01089 } 01090 } 01091 01092 if(s->flags&CODEC_FLAG_PASS2){ 01093 for(i=0; i<s->max_b_frames+1; i++){ 01094 int pict_num= s->input_picture[0]->display_picture_number + i; 01095 01096 if(pict_num >= s->rc_context.num_entries) 01097 break; 01098 if(!s->input_picture[i]){ 01099 s->rc_context.entry[pict_num-1].new_pict_type = AV_PICTURE_TYPE_P; 01100 break; 01101 } 01102 01103 s->input_picture[i]->pict_type= 01104 s->rc_context.entry[pict_num].new_pict_type; 01105 } 01106 } 01107 01108 if(s->avctx->b_frame_strategy==0){ 01109 b_frames= s->max_b_frames; 01110 while(b_frames && !s->input_picture[b_frames]) b_frames--; 01111 }else if(s->avctx->b_frame_strategy==1){ 01112 for(i=1; i<s->max_b_frames+1; i++){ 01113 if(s->input_picture[i] && s->input_picture[i]->b_frame_score==0){ 01114 s->input_picture[i]->b_frame_score= 01115 get_intra_count(s, s->input_picture[i ]->data[0], 01116 s->input_picture[i-1]->data[0], s->linesize) + 1; 01117 } 01118 } 01119 for(i=0; i<s->max_b_frames+1; i++){ 01120 if(s->input_picture[i]==NULL || s->input_picture[i]->b_frame_score - 1 > s->mb_num/s->avctx->b_sensitivity) break; 01121 } 01122 01123 b_frames= FFMAX(0, i-1); 01124 01125 /* reset scores */ 01126 for(i=0; i<b_frames+1; i++){ 01127 s->input_picture[i]->b_frame_score=0; 01128 } 01129 }else if(s->avctx->b_frame_strategy==2){ 01130 b_frames= estimate_best_b_count(s); 01131 }else{ 01132 av_log(s->avctx, AV_LOG_ERROR, "illegal b frame strategy\n"); 01133 b_frames=0; 01134 } 01135 01136 emms_c(); 01137 //static int b_count=0; 01138 //b_count+= b_frames; 01139 //av_log(s->avctx, AV_LOG_DEBUG, "b_frames: %d\n", b_count); 01140 01141 for(i= b_frames - 1; i>=0; i--){ 01142 int type= s->input_picture[i]->pict_type; 01143 if(type && type != AV_PICTURE_TYPE_B) 01144 b_frames= i; 01145 } 01146 if(s->input_picture[b_frames]->pict_type == AV_PICTURE_TYPE_B && b_frames == s->max_b_frames){ 01147 av_log(s->avctx, AV_LOG_ERROR, "warning, too many b frames in a row\n"); 01148 } 01149 01150 if(s->picture_in_gop_number + b_frames >= s->gop_size){ 01151 if((s->flags2 & CODEC_FLAG2_STRICT_GOP) && s->gop_size > s->picture_in_gop_number){ 01152 b_frames= s->gop_size - s->picture_in_gop_number - 1; 01153 }else{ 01154 if(s->flags & CODEC_FLAG_CLOSED_GOP) 01155 b_frames=0; 01156 s->input_picture[b_frames]->pict_type= AV_PICTURE_TYPE_I; 01157 } 01158 } 01159 01160 if( (s->flags & CODEC_FLAG_CLOSED_GOP) 01161 && b_frames 01162 && s->input_picture[b_frames]->pict_type== AV_PICTURE_TYPE_I) 01163 b_frames--; 01164 01165 s->reordered_input_picture[0]= s->input_picture[b_frames]; 01166 if(s->reordered_input_picture[0]->pict_type != AV_PICTURE_TYPE_I) 01167 s->reordered_input_picture[0]->pict_type= AV_PICTURE_TYPE_P; 01168 s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++; 01169 for(i=0; i<b_frames; i++){ 01170 s->reordered_input_picture[i+1]= s->input_picture[i]; 01171 s->reordered_input_picture[i+1]->pict_type= AV_PICTURE_TYPE_B; 01172 s->reordered_input_picture[i+1]->coded_picture_number= s->coded_picture_number++; 01173 } 01174 } 01175 } 01176 no_output_pic: 01177 if(s->reordered_input_picture[0]){ 01178 s->reordered_input_picture[0]->reference= s->reordered_input_picture[0]->pict_type!=AV_PICTURE_TYPE_B ? 3 : 0; 01179 01180 ff_copy_picture(&s->new_picture, s->reordered_input_picture[0]); 01181 01182 if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_SHARED || s->avctx->rc_buffer_size){ 01183 // input is a shared pix, so we can't modifiy it -> alloc a new one & ensure that the shared one is reuseable 01184 01185 int i= ff_find_unused_picture(s, 0); 01186 Picture *pic= &s->picture[i]; 01187 01188 pic->reference = s->reordered_input_picture[0]->reference; 01189 if(ff_alloc_picture(s, pic, 0) < 0){ 01190 return -1; 01191 } 01192 01193 /* mark us unused / free shared pic */ 01194 if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_INTERNAL) 01195 s->avctx->release_buffer(s->avctx, (AVFrame*)s->reordered_input_picture[0]); 01196 for(i=0; i<4; i++) 01197 s->reordered_input_picture[0]->data[i]= NULL; 01198 s->reordered_input_picture[0]->type= 0; 01199 01200 copy_picture_attributes(s, (AVFrame*)pic, (AVFrame*)s->reordered_input_picture[0]); 01201 01202 s->current_picture_ptr= pic; 01203 }else{ 01204 // input is not a shared pix -> reuse buffer for current_pix 01205 01206 assert( s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_USER 01207 || s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL); 01208 01209 s->current_picture_ptr= s->reordered_input_picture[0]; 01210 for(i=0; i<4; i++){ 01211 s->new_picture.data[i]+= INPLACE_OFFSET; 01212 } 01213 } 01214 ff_copy_picture(&s->current_picture, s->current_picture_ptr); 01215 01216 s->picture_number= s->new_picture.display_picture_number; 01217 //printf("dpn:%d\n", s->picture_number); 01218 }else{ 01219 memset(&s->new_picture, 0, sizeof(Picture)); 01220 } 01221 return 0; 01222 } 01223 01224 int MPV_encode_picture(AVCodecContext *avctx, 01225 unsigned char *buf, int buf_size, void *data) 01226 { 01227 MpegEncContext *s = avctx->priv_data; 01228 AVFrame *pic_arg = data; 01229 int i, stuffing_count, context_count = avctx->thread_count; 01230 01231 for(i=0; i<context_count; i++){ 01232 int start_y= s->thread_context[i]->start_mb_y; 01233 int end_y= s->thread_context[i]-> end_mb_y; 01234 int h= s->mb_height; 01235 uint8_t *start= buf + (size_t)(((int64_t) buf_size)*start_y/h); 01236 uint8_t *end = buf + (size_t)(((int64_t) buf_size)* end_y/h); 01237 01238 init_put_bits(&s->thread_context[i]->pb, start, end - start); 01239 } 01240 01241 s->picture_in_gop_number++; 01242 01243 if(load_input_picture(s, pic_arg) < 0) 01244 return -1; 01245 01246 if(select_input_picture(s) < 0){ 01247 return -1; 01248 } 01249 01250 /* output? */ 01251 if(s->new_picture.data[0]){ 01252 s->pict_type= s->new_picture.pict_type; 01253 //emms_c(); 01254 //printf("qs:%f %f %d\n", s->new_picture.quality, s->current_picture.quality, s->qscale); 01255 MPV_frame_start(s, avctx); 01256 vbv_retry: 01257 if (encode_picture(s, s->picture_number) < 0) 01258 return -1; 01259 01260 avctx->header_bits = s->header_bits; 01261 avctx->mv_bits = s->mv_bits; 01262 avctx->misc_bits = s->misc_bits; 01263 avctx->i_tex_bits = s->i_tex_bits; 01264 avctx->p_tex_bits = s->p_tex_bits; 01265 avctx->i_count = s->i_count; 01266 avctx->p_count = s->mb_num - s->i_count - s->skip_count; //FIXME f/b_count in avctx 01267 avctx->skip_count = s->skip_count; 01268 01269 MPV_frame_end(s); 01270 01271 if (CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG) 01272 ff_mjpeg_encode_picture_trailer(s); 01273 01274 if(avctx->rc_buffer_size){ 01275 RateControlContext *rcc= &s->rc_context; 01276 int max_size= rcc->buffer_index * avctx->rc_max_available_vbv_use; 01277 01278 if(put_bits_count(&s->pb) > max_size && s->lambda < s->avctx->lmax){ 01279 s->next_lambda= FFMAX(s->lambda+1, s->lambda*(s->qscale+1) / s->qscale); 01280 if(s->adaptive_quant){ 01281 int i; 01282 for(i=0; i<s->mb_height*s->mb_stride; i++) 01283 s->lambda_table[i]= FFMAX(s->lambda_table[i]+1, s->lambda_table[i]*(s->qscale+1) / s->qscale); 01284 } 01285 s->mb_skipped = 0; //done in MPV_frame_start() 01286 if(s->pict_type==AV_PICTURE_TYPE_P){ //done in encode_picture() so we must undo it 01287 if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4) 01288 s->no_rounding ^= 1; 01289 } 01290 if(s->pict_type!=AV_PICTURE_TYPE_B){ 01291 s->time_base= s->last_time_base; 01292 s->last_non_b_time= s->time - s->pp_time; 01293 } 01294 // av_log(NULL, AV_LOG_ERROR, "R:%d ", s->next_lambda); 01295 for(i=0; i<context_count; i++){ 01296 PutBitContext *pb= &s->thread_context[i]->pb; 01297 init_put_bits(pb, pb->buf, pb->buf_end - pb->buf); 01298 } 01299 goto vbv_retry; 01300 } 01301 01302 assert(s->avctx->rc_max_rate); 01303 } 01304 01305 if(s->flags&CODEC_FLAG_PASS1) 01306 ff_write_pass1_stats(s); 01307 01308 for(i=0; i<4; i++){ 01309 s->current_picture_ptr->error[i]= s->current_picture.error[i]; 01310 avctx->error[i] += s->current_picture_ptr->error[i]; 01311 } 01312 01313 if(s->flags&CODEC_FLAG_PASS1) 01314 assert(avctx->header_bits + avctx->mv_bits + avctx->misc_bits + avctx->i_tex_bits + avctx->p_tex_bits == put_bits_count(&s->pb)); 01315 flush_put_bits(&s->pb); 01316 s->frame_bits = put_bits_count(&s->pb); 01317 01318 stuffing_count= ff_vbv_update(s, s->frame_bits); 01319 if(stuffing_count){ 01320 if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < stuffing_count + 50){ 01321 av_log(s->avctx, AV_LOG_ERROR, "stuffing too large\n"); 01322 return -1; 01323 } 01324 01325 switch(s->codec_id){ 01326 case CODEC_ID_MPEG1VIDEO: 01327 case CODEC_ID_MPEG2VIDEO: 01328 while(stuffing_count--){ 01329 put_bits(&s->pb, 8, 0); 01330 } 01331 break; 01332 case CODEC_ID_MPEG4: 01333 put_bits(&s->pb, 16, 0); 01334 put_bits(&s->pb, 16, 0x1C3); 01335 stuffing_count -= 4; 01336 while(stuffing_count--){ 01337 put_bits(&s->pb, 8, 0xFF); 01338 } 01339 break; 01340 default: 01341 av_log(s->avctx, AV_LOG_ERROR, "vbv buffer overflow\n"); 01342 } 01343 flush_put_bits(&s->pb); 01344 s->frame_bits = put_bits_count(&s->pb); 01345 } 01346 01347 /* update mpeg1/2 vbv_delay for CBR */ 01348 if(s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate && s->out_format == FMT_MPEG1 01349 && 90000LL * (avctx->rc_buffer_size-1) <= s->avctx->rc_max_rate*0xFFFFLL){ 01350 int vbv_delay, min_delay; 01351 double inbits = s->avctx->rc_max_rate*av_q2d(s->avctx->time_base); 01352 int minbits= s->frame_bits - 8*(s->vbv_delay_ptr - s->pb.buf - 1); 01353 double bits = s->rc_context.buffer_index + minbits - inbits; 01354 01355 if(bits<0) 01356 av_log(s->avctx, AV_LOG_ERROR, "Internal error, negative bits\n"); 01357 01358 assert(s->repeat_first_field==0); 01359 01360 vbv_delay= bits * 90000 / s->avctx->rc_max_rate; 01361 min_delay= (minbits * 90000LL + s->avctx->rc_max_rate - 1)/ s->avctx->rc_max_rate; 01362 01363 vbv_delay= FFMAX(vbv_delay, min_delay); 01364 01365 assert(vbv_delay < 0xFFFF); 01366 01367 s->vbv_delay_ptr[0] &= 0xF8; 01368 s->vbv_delay_ptr[0] |= vbv_delay>>13; 01369 s->vbv_delay_ptr[1] = vbv_delay>>5; 01370 s->vbv_delay_ptr[2] &= 0x07; 01371 s->vbv_delay_ptr[2] |= vbv_delay<<3; 01372 avctx->vbv_delay = vbv_delay*300; 01373 } 01374 s->total_bits += s->frame_bits; 01375 avctx->frame_bits = s->frame_bits; 01376 }else{ 01377 assert((put_bits_ptr(&s->pb) == s->pb.buf)); 01378 s->frame_bits=0; 01379 } 01380 assert((s->frame_bits&7)==0); 01381 01382 return s->frame_bits/8; 01383 } 01384 01385 static inline void dct_single_coeff_elimination(MpegEncContext *s, int n, int threshold) 01386 { 01387 static const char tab[64]= 01388 {3,2,2,1,1,1,1,1, 01389 1,1,1,1,1,1,1,1, 01390 1,1,1,1,1,1,1,1, 01391 0,0,0,0,0,0,0,0, 01392 0,0,0,0,0,0,0,0, 01393 0,0,0,0,0,0,0,0, 01394 0,0,0,0,0,0,0,0, 01395 0,0,0,0,0,0,0,0}; 01396 int score=0; 01397 int run=0; 01398 int i; 01399 DCTELEM *block= s->block[n]; 01400 const int last_index= s->block_last_index[n]; 01401 int skip_dc; 01402 01403 if(threshold<0){ 01404 skip_dc=0; 01405 threshold= -threshold; 01406 }else 01407 skip_dc=1; 01408 01409 /* Are all we could set to zero already zero? */ 01410 if(last_index<=skip_dc - 1) return; 01411 01412 for(i=0; i<=last_index; i++){ 01413 const int j = s->intra_scantable.permutated[i]; 01414 const int level = FFABS(block[j]); 01415 if(level==1){ 01416 if(skip_dc && i==0) continue; 01417 score+= tab[run]; 01418 run=0; 01419 }else if(level>1){ 01420 return; 01421 }else{ 01422 run++; 01423 } 01424 } 01425 if(score >= threshold) return; 01426 for(i=skip_dc; i<=last_index; i++){ 01427 const int j = s->intra_scantable.permutated[i]; 01428 block[j]=0; 01429 } 01430 if(block[0]) s->block_last_index[n]= 0; 01431 else s->block_last_index[n]= -1; 01432 } 01433 01434 static inline void clip_coeffs(MpegEncContext *s, DCTELEM *block, int last_index) 01435 { 01436 int i; 01437 const int maxlevel= s->max_qcoeff; 01438 const int minlevel= s->min_qcoeff; 01439 int overflow=0; 01440 01441 if(s->mb_intra){ 01442 i=1; //skip clipping of intra dc 01443 }else 01444 i=0; 01445 01446 for(;i<=last_index; i++){ 01447 const int j= s->intra_scantable.permutated[i]; 01448 int level = block[j]; 01449 01450 if (level>maxlevel){ 01451 level=maxlevel; 01452 overflow++; 01453 }else if(level<minlevel){ 01454 level=minlevel; 01455 overflow++; 01456 } 01457 01458 block[j]= level; 01459 } 01460 01461 if(overflow && s->avctx->mb_decision == FF_MB_DECISION_SIMPLE) 01462 av_log(s->avctx, AV_LOG_INFO, "warning, clipping %d dct coefficients to %d..%d\n", overflow, minlevel, maxlevel); 01463 } 01464 01465 static void get_visual_weight(int16_t *weight, uint8_t *ptr, int stride){ 01466 int x, y; 01467 //FIXME optimize 01468 for(y=0; y<8; y++){ 01469 for(x=0; x<8; x++){ 01470 int x2, y2; 01471 int sum=0; 01472 int sqr=0; 01473 int count=0; 01474 01475 for(y2= FFMAX(y-1, 0); y2 < FFMIN(8, y+2); y2++){ 01476 for(x2= FFMAX(x-1, 0); x2 < FFMIN(8, x+2); x2++){ 01477 int v= ptr[x2 + y2*stride]; 01478 sum += v; 01479 sqr += v*v; 01480 count++; 01481 } 01482 } 01483 weight[x + 8*y]= (36*ff_sqrt(count*sqr - sum*sum)) / count; 01484 } 01485 } 01486 } 01487 01488 static av_always_inline void encode_mb_internal(MpegEncContext *s, int motion_x, int motion_y, int mb_block_height, int mb_block_count) 01489 { 01490 int16_t weight[8][64]; 01491 DCTELEM orig[8][64]; 01492 const int mb_x= s->mb_x; 01493 const int mb_y= s->mb_y; 01494 int i; 01495 int skip_dct[8]; 01496 int dct_offset = s->linesize*8; //default for progressive frames 01497 uint8_t *ptr_y, *ptr_cb, *ptr_cr; 01498 int wrap_y, wrap_c; 01499 01500 for(i=0; i<mb_block_count; i++) skip_dct[i]=s->skipdct; 01501 01502 if(s->adaptive_quant){ 01503 const int last_qp= s->qscale; 01504 const int mb_xy= mb_x + mb_y*s->mb_stride; 01505 01506 s->lambda= s->lambda_table[mb_xy]; 01507 update_qscale(s); 01508 01509 if(!(s->flags&CODEC_FLAG_QP_RD)){ 01510 s->qscale= s->current_picture_ptr->qscale_table[mb_xy]; 01511 s->dquant= s->qscale - last_qp; 01512 01513 if(s->out_format==FMT_H263){ 01514 s->dquant= av_clip(s->dquant, -2, 2); 01515 01516 if(s->codec_id==CODEC_ID_MPEG4){ 01517 if(!s->mb_intra){ 01518 if(s->pict_type == AV_PICTURE_TYPE_B){ 01519 if(s->dquant&1 || s->mv_dir&MV_DIRECT) 01520 s->dquant= 0; 01521 } 01522 if(s->mv_type==MV_TYPE_8X8) 01523 s->dquant=0; 01524 } 01525 } 01526 } 01527 } 01528 ff_set_qscale(s, last_qp + s->dquant); 01529 }else if(s->flags&CODEC_FLAG_QP_RD) 01530 ff_set_qscale(s, s->qscale + s->dquant); 01531 01532 wrap_y = s->linesize; 01533 wrap_c = s->uvlinesize; 01534 ptr_y = s->new_picture.data[0] + (mb_y * 16 * wrap_y) + mb_x * 16; 01535 ptr_cb = s->new_picture.data[1] + (mb_y * mb_block_height * wrap_c) + mb_x * 8; 01536 ptr_cr = s->new_picture.data[2] + (mb_y * mb_block_height * wrap_c) + mb_x * 8; 01537 01538 if(mb_x*16+16 > s->width || mb_y*16+16 > s->height){ 01539 uint8_t *ebuf= s->edge_emu_buffer + 32; 01540 s->dsp.emulated_edge_mc(ebuf , ptr_y , wrap_y,16,16,mb_x*16,mb_y*16, s->width , s->height); 01541 ptr_y= ebuf; 01542 s->dsp.emulated_edge_mc(ebuf+18*wrap_y , ptr_cb, wrap_c, 8, mb_block_height, mb_x*8, mb_y*8, s->width>>1, s->height>>1); 01543 ptr_cb= ebuf+18*wrap_y; 01544 s->dsp.emulated_edge_mc(ebuf+18*wrap_y+8, ptr_cr, wrap_c, 8, mb_block_height, mb_x*8, mb_y*8, s->width>>1, s->height>>1); 01545 ptr_cr= ebuf+18*wrap_y+8; 01546 } 01547 01548 if (s->mb_intra) { 01549 if(s->flags&CODEC_FLAG_INTERLACED_DCT){ 01550 int progressive_score, interlaced_score; 01551 01552 s->interlaced_dct=0; 01553 progressive_score= s->dsp.ildct_cmp[4](s, ptr_y , NULL, wrap_y, 8) 01554 +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y*8, NULL, wrap_y, 8) - 400; 01555 01556 if(progressive_score > 0){ 01557 interlaced_score = s->dsp.ildct_cmp[4](s, ptr_y , NULL, wrap_y*2, 8) 01558 +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y , NULL, wrap_y*2, 8); 01559 if(progressive_score > interlaced_score){ 01560 s->interlaced_dct=1; 01561 01562 dct_offset= wrap_y; 01563 wrap_y<<=1; 01564 if (s->chroma_format == CHROMA_422) 01565 wrap_c<<=1; 01566 } 01567 } 01568 } 01569 01570 s->dsp.get_pixels(s->block[0], ptr_y , wrap_y); 01571 s->dsp.get_pixels(s->block[1], ptr_y + 8, wrap_y); 01572 s->dsp.get_pixels(s->block[2], ptr_y + dct_offset , wrap_y); 01573 s->dsp.get_pixels(s->block[3], ptr_y + dct_offset + 8, wrap_y); 01574 01575 if(s->flags&CODEC_FLAG_GRAY){ 01576 skip_dct[4]= 1; 01577 skip_dct[5]= 1; 01578 }else{ 01579 s->dsp.get_pixels(s->block[4], ptr_cb, wrap_c); 01580 s->dsp.get_pixels(s->block[5], ptr_cr, wrap_c); 01581 if(!s->chroma_y_shift){ /* 422 */ 01582 s->dsp.get_pixels(s->block[6], ptr_cb + (dct_offset>>1), wrap_c); 01583 s->dsp.get_pixels(s->block[7], ptr_cr + (dct_offset>>1), wrap_c); 01584 } 01585 } 01586 }else{ 01587 op_pixels_func (*op_pix)[4]; 01588 qpel_mc_func (*op_qpix)[16]; 01589 uint8_t *dest_y, *dest_cb, *dest_cr; 01590 01591 dest_y = s->dest[0]; 01592 dest_cb = s->dest[1]; 01593 dest_cr = s->dest[2]; 01594 01595 if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){ 01596 op_pix = s->dsp.put_pixels_tab; 01597 op_qpix= s->dsp.put_qpel_pixels_tab; 01598 }else{ 01599 op_pix = s->dsp.put_no_rnd_pixels_tab; 01600 op_qpix= s->dsp.put_no_rnd_qpel_pixels_tab; 01601 } 01602 01603 if (s->mv_dir & MV_DIR_FORWARD) { 01604 MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.data, op_pix, op_qpix); 01605 op_pix = s->dsp.avg_pixels_tab; 01606 op_qpix= s->dsp.avg_qpel_pixels_tab; 01607 } 01608 if (s->mv_dir & MV_DIR_BACKWARD) { 01609 MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.data, op_pix, op_qpix); 01610 } 01611 01612 if(s->flags&CODEC_FLAG_INTERLACED_DCT){ 01613 int progressive_score, interlaced_score; 01614 01615 s->interlaced_dct=0; 01616 progressive_score= s->dsp.ildct_cmp[0](s, dest_y , ptr_y , wrap_y, 8) 01617 +s->dsp.ildct_cmp[0](s, dest_y + wrap_y*8, ptr_y + wrap_y*8, wrap_y, 8) - 400; 01618 01619 if(s->avctx->ildct_cmp == FF_CMP_VSSE) progressive_score -= 400; 01620 01621 if(progressive_score>0){ 01622 interlaced_score = s->dsp.ildct_cmp[0](s, dest_y , ptr_y , wrap_y*2, 8) 01623 +s->dsp.ildct_cmp[0](s, dest_y + wrap_y , ptr_y + wrap_y , wrap_y*2, 8); 01624 01625 if(progressive_score > interlaced_score){ 01626 s->interlaced_dct=1; 01627 01628 dct_offset= wrap_y; 01629 wrap_y<<=1; 01630 if (s->chroma_format == CHROMA_422) 01631 wrap_c<<=1; 01632 } 01633 } 01634 } 01635 01636 s->dsp.diff_pixels(s->block[0], ptr_y , dest_y , wrap_y); 01637 s->dsp.diff_pixels(s->block[1], ptr_y + 8, dest_y + 8, wrap_y); 01638 s->dsp.diff_pixels(s->block[2], ptr_y + dct_offset , dest_y + dct_offset , wrap_y); 01639 s->dsp.diff_pixels(s->block[3], ptr_y + dct_offset + 8, dest_y + dct_offset + 8, wrap_y); 01640 01641 if(s->flags&CODEC_FLAG_GRAY){ 01642 skip_dct[4]= 1; 01643 skip_dct[5]= 1; 01644 }else{ 01645 s->dsp.diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c); 01646 s->dsp.diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c); 01647 if(!s->chroma_y_shift){ /* 422 */ 01648 s->dsp.diff_pixels(s->block[6], ptr_cb + (dct_offset>>1), dest_cb + (dct_offset>>1), wrap_c); 01649 s->dsp.diff_pixels(s->block[7], ptr_cr + (dct_offset>>1), dest_cr + (dct_offset>>1), wrap_c); 01650 } 01651 } 01652 /* pre quantization */ 01653 if(s->current_picture.mc_mb_var[s->mb_stride*mb_y+ mb_x]<2*s->qscale*s->qscale){ 01654 //FIXME optimize 01655 if(s->dsp.sad[1](NULL, ptr_y , dest_y , wrap_y, 8) < 20*s->qscale) skip_dct[0]= 1; 01656 if(s->dsp.sad[1](NULL, ptr_y + 8, dest_y + 8, wrap_y, 8) < 20*s->qscale) skip_dct[1]= 1; 01657 if(s->dsp.sad[1](NULL, ptr_y +dct_offset , dest_y +dct_offset , wrap_y, 8) < 20*s->qscale) skip_dct[2]= 1; 01658 if(s->dsp.sad[1](NULL, ptr_y +dct_offset+ 8, dest_y +dct_offset+ 8, wrap_y, 8) < 20*s->qscale) skip_dct[3]= 1; 01659 if(s->dsp.sad[1](NULL, ptr_cb , dest_cb , wrap_c, 8) < 20*s->qscale) skip_dct[4]= 1; 01660 if(s->dsp.sad[1](NULL, ptr_cr , dest_cr , wrap_c, 8) < 20*s->qscale) skip_dct[5]= 1; 01661 if(!s->chroma_y_shift){ /* 422 */ 01662 if(s->dsp.sad[1](NULL, ptr_cb +(dct_offset>>1), dest_cb +(dct_offset>>1), wrap_c, 8) < 20*s->qscale) skip_dct[6]= 1; 01663 if(s->dsp.sad[1](NULL, ptr_cr +(dct_offset>>1), dest_cr +(dct_offset>>1), wrap_c, 8) < 20*s->qscale) skip_dct[7]= 1; 01664 } 01665 } 01666 } 01667 01668 if(s->avctx->quantizer_noise_shaping){ 01669 if(!skip_dct[0]) get_visual_weight(weight[0], ptr_y , wrap_y); 01670 if(!skip_dct[1]) get_visual_weight(weight[1], ptr_y + 8, wrap_y); 01671 if(!skip_dct[2]) get_visual_weight(weight[2], ptr_y + dct_offset , wrap_y); 01672 if(!skip_dct[3]) get_visual_weight(weight[3], ptr_y + dct_offset + 8, wrap_y); 01673 if(!skip_dct[4]) get_visual_weight(weight[4], ptr_cb , wrap_c); 01674 if(!skip_dct[5]) get_visual_weight(weight[5], ptr_cr , wrap_c); 01675 if(!s->chroma_y_shift){ /* 422 */ 01676 if(!skip_dct[6]) get_visual_weight(weight[6], ptr_cb + (dct_offset>>1), wrap_c); 01677 if(!skip_dct[7]) get_visual_weight(weight[7], ptr_cr + (dct_offset>>1), wrap_c); 01678 } 01679 memcpy(orig[0], s->block[0], sizeof(DCTELEM)*64*mb_block_count); 01680 } 01681 01682 /* DCT & quantize */ 01683 assert(s->out_format!=FMT_MJPEG || s->qscale==8); 01684 { 01685 for(i=0;i<mb_block_count;i++) { 01686 if(!skip_dct[i]){ 01687 int overflow; 01688 s->block_last_index[i] = s->dct_quantize(s, s->block[i], i, s->qscale, &overflow); 01689 // FIXME we could decide to change to quantizer instead of clipping 01690 // JS: I don't think that would be a good idea it could lower quality instead 01691 // of improve it. Just INTRADC clipping deserves changes in quantizer 01692 if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]); 01693 }else 01694 s->block_last_index[i]= -1; 01695 } 01696 if(s->avctx->quantizer_noise_shaping){ 01697 for(i=0;i<mb_block_count;i++) { 01698 if(!skip_dct[i]){ 01699 s->block_last_index[i] = dct_quantize_refine(s, s->block[i], weight[i], orig[i], i, s->qscale); 01700 } 01701 } 01702 } 01703 01704 if(s->luma_elim_threshold && !s->mb_intra) 01705 for(i=0; i<4; i++) 01706 dct_single_coeff_elimination(s, i, s->luma_elim_threshold); 01707 if(s->chroma_elim_threshold && !s->mb_intra) 01708 for(i=4; i<mb_block_count; i++) 01709 dct_single_coeff_elimination(s, i, s->chroma_elim_threshold); 01710 01711 if(s->flags & CODEC_FLAG_CBP_RD){ 01712 for(i=0;i<mb_block_count;i++) { 01713 if(s->block_last_index[i] == -1) 01714 s->coded_score[i]= INT_MAX/256; 01715 } 01716 } 01717 } 01718 01719 if((s->flags&CODEC_FLAG_GRAY) && s->mb_intra){ 01720 s->block_last_index[4]= 01721 s->block_last_index[5]= 0; 01722 s->block[4][0]= 01723 s->block[5][0]= (1024 + s->c_dc_scale/2)/ s->c_dc_scale; 01724 } 01725 01726 //non c quantize code returns incorrect block_last_index FIXME 01727 if(s->alternate_scan && s->dct_quantize != dct_quantize_c){ 01728 for(i=0; i<mb_block_count; i++){ 01729 int j; 01730 if(s->block_last_index[i]>0){ 01731 for(j=63; j>0; j--){ 01732 if(s->block[i][ s->intra_scantable.permutated[j] ]) break; 01733 } 01734 s->block_last_index[i]= j; 01735 } 01736 } 01737 } 01738 01739 /* huffman encode */ 01740 switch(s->codec_id){ //FIXME funct ptr could be slightly faster 01741 case CODEC_ID_MPEG1VIDEO: 01742 case CODEC_ID_MPEG2VIDEO: 01743 if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER) 01744 mpeg1_encode_mb(s, s->block, motion_x, motion_y); 01745 break; 01746 case CODEC_ID_MPEG4: 01747 if (CONFIG_MPEG4_ENCODER) 01748 mpeg4_encode_mb(s, s->block, motion_x, motion_y); 01749 break; 01750 case CODEC_ID_MSMPEG4V2: 01751 case CODEC_ID_MSMPEG4V3: 01752 case CODEC_ID_WMV1: 01753 if (CONFIG_MSMPEG4_ENCODER) 01754 msmpeg4_encode_mb(s, s->block, motion_x, motion_y); 01755 break; 01756 case CODEC_ID_WMV2: 01757 if (CONFIG_WMV2_ENCODER) 01758 ff_wmv2_encode_mb(s, s->block, motion_x, motion_y); 01759 break; 01760 case CODEC_ID_H261: 01761 if (CONFIG_H261_ENCODER) 01762 ff_h261_encode_mb(s, s->block, motion_x, motion_y); 01763 break; 01764 case CODEC_ID_H263: 01765 case CODEC_ID_H263P: 01766 case CODEC_ID_FLV1: 01767 case CODEC_ID_RV10: 01768 case CODEC_ID_RV20: 01769 if (CONFIG_H263_ENCODER) 01770 h263_encode_mb(s, s->block, motion_x, motion_y); 01771 break; 01772 case CODEC_ID_MJPEG: 01773 if (CONFIG_MJPEG_ENCODER) 01774 ff_mjpeg_encode_mb(s, s->block); 01775 break; 01776 default: 01777 assert(0); 01778 } 01779 } 01780 01781 static av_always_inline void encode_mb(MpegEncContext *s, int motion_x, int motion_y) 01782 { 01783 if (s->chroma_format == CHROMA_420) encode_mb_internal(s, motion_x, motion_y, 8, 6); 01784 else encode_mb_internal(s, motion_x, motion_y, 16, 8); 01785 } 01786 01787 static inline void copy_context_before_encode(MpegEncContext *d, MpegEncContext *s, int type){ 01788 int i; 01789 01790 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop? 01791 01792 /* mpeg1 */ 01793 d->mb_skip_run= s->mb_skip_run; 01794 for(i=0; i<3; i++) 01795 d->last_dc[i]= s->last_dc[i]; 01796 01797 /* statistics */ 01798 d->mv_bits= s->mv_bits; 01799 d->i_tex_bits= s->i_tex_bits; 01800 d->p_tex_bits= s->p_tex_bits; 01801 d->i_count= s->i_count; 01802 d->f_count= s->f_count; 01803 d->b_count= s->b_count; 01804 d->skip_count= s->skip_count; 01805 d->misc_bits= s->misc_bits; 01806 d->last_bits= 0; 01807 01808 d->mb_skipped= 0; 01809 d->qscale= s->qscale; 01810 d->dquant= s->dquant; 01811 01812 d->esc3_level_length= s->esc3_level_length; 01813 } 01814 01815 static inline void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int type){ 01816 int i; 01817 01818 memcpy(d->mv, s->mv, 2*4*2*sizeof(int)); 01819 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop? 01820 01821 /* mpeg1 */ 01822 d->mb_skip_run= s->mb_skip_run; 01823 for(i=0; i<3; i++) 01824 d->last_dc[i]= s->last_dc[i]; 01825 01826 /* statistics */ 01827 d->mv_bits= s->mv_bits; 01828 d->i_tex_bits= s->i_tex_bits; 01829 d->p_tex_bits= s->p_tex_bits; 01830 d->i_count= s->i_count; 01831 d->f_count= s->f_count; 01832 d->b_count= s->b_count; 01833 d->skip_count= s->skip_count; 01834 d->misc_bits= s->misc_bits; 01835 01836 d->mb_intra= s->mb_intra; 01837 d->mb_skipped= s->mb_skipped; 01838 d->mv_type= s->mv_type; 01839 d->mv_dir= s->mv_dir; 01840 d->pb= s->pb; 01841 if(s->data_partitioning){ 01842 d->pb2= s->pb2; 01843 d->tex_pb= s->tex_pb; 01844 } 01845 d->block= s->block; 01846 for(i=0; i<8; i++) 01847 d->block_last_index[i]= s->block_last_index[i]; 01848 d->interlaced_dct= s->interlaced_dct; 01849 d->qscale= s->qscale; 01850 01851 d->esc3_level_length= s->esc3_level_length; 01852 } 01853 01854 static inline void encode_mb_hq(MpegEncContext *s, MpegEncContext *backup, MpegEncContext *best, int type, 01855 PutBitContext pb[2], PutBitContext pb2[2], PutBitContext tex_pb[2], 01856 int *dmin, int *next_block, int motion_x, int motion_y) 01857 { 01858 int score; 01859 uint8_t *dest_backup[3]; 01860 01861 copy_context_before_encode(s, backup, type); 01862 01863 s->block= s->blocks[*next_block]; 01864 s->pb= pb[*next_block]; 01865 if(s->data_partitioning){ 01866 s->pb2 = pb2 [*next_block]; 01867 s->tex_pb= tex_pb[*next_block]; 01868 } 01869 01870 if(*next_block){ 01871 memcpy(dest_backup, s->dest, sizeof(s->dest)); 01872 s->dest[0] = s->rd_scratchpad; 01873 s->dest[1] = s->rd_scratchpad + 16*s->linesize; 01874 s->dest[2] = s->rd_scratchpad + 16*s->linesize + 8; 01875 assert(s->linesize >= 32); //FIXME 01876 } 01877 01878 encode_mb(s, motion_x, motion_y); 01879 01880 score= put_bits_count(&s->pb); 01881 if(s->data_partitioning){ 01882 score+= put_bits_count(&s->pb2); 01883 score+= put_bits_count(&s->tex_pb); 01884 } 01885 01886 if(s->avctx->mb_decision == FF_MB_DECISION_RD){ 01887 MPV_decode_mb(s, s->block); 01888 01889 score *= s->lambda2; 01890 score += sse_mb(s) << FF_LAMBDA_SHIFT; 01891 } 01892 01893 if(*next_block){ 01894 memcpy(s->dest, dest_backup, sizeof(s->dest)); 01895 } 01896 01897 if(score<*dmin){ 01898 *dmin= score; 01899 *next_block^=1; 01900 01901 copy_context_after_encode(best, s, type); 01902 } 01903 } 01904 01905 static int sse(MpegEncContext *s, uint8_t *src1, uint8_t *src2, int w, int h, int stride){ 01906 uint32_t *sq = ff_squareTbl + 256; 01907 int acc=0; 01908 int x,y; 01909 01910 if(w==16 && h==16) 01911 return s->dsp.sse[0](NULL, src1, src2, stride, 16); 01912 else if(w==8 && h==8) 01913 return s->dsp.sse[1](NULL, src1, src2, stride, 8); 01914 01915 for(y=0; y<h; y++){ 01916 for(x=0; x<w; x++){ 01917 acc+= sq[src1[x + y*stride] - src2[x + y*stride]]; 01918 } 01919 } 01920 01921 assert(acc>=0); 01922 01923 return acc; 01924 } 01925 01926 static int sse_mb(MpegEncContext *s){ 01927 int w= 16; 01928 int h= 16; 01929 01930 if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16; 01931 if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16; 01932 01933 if(w==16 && h==16) 01934 if(s->avctx->mb_cmp == FF_CMP_NSSE){ 01935 return s->dsp.nsse[0](s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16, s->dest[0], s->linesize, 16) 01936 +s->dsp.nsse[1](s, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[1], s->uvlinesize, 8) 01937 +s->dsp.nsse[1](s, s->new_picture.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[2], s->uvlinesize, 8); 01938 }else{ 01939 return s->dsp.sse[0](NULL, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16, s->dest[0], s->linesize, 16) 01940 +s->dsp.sse[1](NULL, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[1], s->uvlinesize, 8) 01941 +s->dsp.sse[1](NULL, s->new_picture.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[2], s->uvlinesize, 8); 01942 } 01943 else 01944 return sse(s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16, s->dest[0], w, h, s->linesize) 01945 +sse(s, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[1], w>>1, h>>1, s->uvlinesize) 01946 +sse(s, s->new_picture.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[2], w>>1, h>>1, s->uvlinesize); 01947 } 01948 01949 static int pre_estimate_motion_thread(AVCodecContext *c, void *arg){ 01950 MpegEncContext *s= *(void**)arg; 01951 01952 01953 s->me.pre_pass=1; 01954 s->me.dia_size= s->avctx->pre_dia_size; 01955 s->first_slice_line=1; 01956 for(s->mb_y= s->end_mb_y-1; s->mb_y >= s->start_mb_y; s->mb_y--) { 01957 for(s->mb_x=s->mb_width-1; s->mb_x >=0 ;s->mb_x--) { 01958 ff_pre_estimate_p_frame_motion(s, s->mb_x, s->mb_y); 01959 } 01960 s->first_slice_line=0; 01961 } 01962 01963 s->me.pre_pass=0; 01964 01965 return 0; 01966 } 01967 01968 static int estimate_motion_thread(AVCodecContext *c, void *arg){ 01969 MpegEncContext *s= *(void**)arg; 01970 01971 ff_check_alignment(); 01972 01973 s->me.dia_size= s->avctx->dia_size; 01974 s->first_slice_line=1; 01975 for(s->mb_y= s->start_mb_y; s->mb_y < s->end_mb_y; s->mb_y++) { 01976 s->mb_x=0; //for block init below 01977 ff_init_block_index(s); 01978 for(s->mb_x=0; s->mb_x < s->mb_width; s->mb_x++) { 01979 s->block_index[0]+=2; 01980 s->block_index[1]+=2; 01981 s->block_index[2]+=2; 01982 s->block_index[3]+=2; 01983 01984 /* compute motion vector & mb_type and store in context */ 01985 if(s->pict_type==AV_PICTURE_TYPE_B) 01986 ff_estimate_b_frame_motion(s, s->mb_x, s->mb_y); 01987 else 01988 ff_estimate_p_frame_motion(s, s->mb_x, s->mb_y); 01989 } 01990 s->first_slice_line=0; 01991 } 01992 return 0; 01993 } 01994 01995 static int mb_var_thread(AVCodecContext *c, void *arg){ 01996 MpegEncContext *s= *(void**)arg; 01997 int mb_x, mb_y; 01998 01999 ff_check_alignment(); 02000 02001 for(mb_y=s->start_mb_y; mb_y < s->end_mb_y; mb_y++) { 02002 for(mb_x=0; mb_x < s->mb_width; mb_x++) { 02003 int xx = mb_x * 16; 02004 int yy = mb_y * 16; 02005 uint8_t *pix = s->new_picture.data[0] + (yy * s->linesize) + xx; 02006 int varc; 02007 int sum = s->dsp.pix_sum(pix, s->linesize); 02008 02009 varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)sum*sum)>>8) + 500 + 128)>>8; 02010 02011 s->current_picture.mb_var [s->mb_stride * mb_y + mb_x] = varc; 02012 s->current_picture.mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8; 02013 s->me.mb_var_sum_temp += varc; 02014 } 02015 } 02016 return 0; 02017 } 02018 02019 static void write_slice_end(MpegEncContext *s){ 02020 if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4){ 02021 if(s->partitioned_frame){ 02022 ff_mpeg4_merge_partitions(s); 02023 } 02024 02025 ff_mpeg4_stuffing(&s->pb); 02026 }else if(CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG){ 02027 ff_mjpeg_encode_stuffing(&s->pb); 02028 } 02029 02030 align_put_bits(&s->pb); 02031 flush_put_bits(&s->pb); 02032 02033 if((s->flags&CODEC_FLAG_PASS1) && !s->partitioned_frame) 02034 s->misc_bits+= get_bits_diff(s); 02035 } 02036 02037 static int encode_thread(AVCodecContext *c, void *arg){ 02038 MpegEncContext *s= *(void**)arg; 02039 int mb_x, mb_y, pdif = 0; 02040 int chr_h= 16>>s->chroma_y_shift; 02041 int i, j; 02042 MpegEncContext best_s, backup_s; 02043 uint8_t bit_buf[2][MAX_MB_BYTES]; 02044 uint8_t bit_buf2[2][MAX_MB_BYTES]; 02045 uint8_t bit_buf_tex[2][MAX_MB_BYTES]; 02046 PutBitContext pb[2], pb2[2], tex_pb[2]; 02047 //printf("%d->%d\n", s->resync_mb_y, s->end_mb_y); 02048 02049 ff_check_alignment(); 02050 02051 for(i=0; i<2; i++){ 02052 init_put_bits(&pb [i], bit_buf [i], MAX_MB_BYTES); 02053 init_put_bits(&pb2 [i], bit_buf2 [i], MAX_MB_BYTES); 02054 init_put_bits(&tex_pb[i], bit_buf_tex[i], MAX_MB_BYTES); 02055 } 02056 02057 s->last_bits= put_bits_count(&s->pb); 02058 s->mv_bits=0; 02059 s->misc_bits=0; 02060 s->i_tex_bits=0; 02061 s->p_tex_bits=0; 02062 s->i_count=0; 02063 s->f_count=0; 02064 s->b_count=0; 02065 s->skip_count=0; 02066 02067 for(i=0; i<3; i++){ 02068 /* init last dc values */ 02069 /* note: quant matrix value (8) is implied here */ 02070 s->last_dc[i] = 128 << s->intra_dc_precision; 02071 02072 s->current_picture.error[i] = 0; 02073 } 02074 s->mb_skip_run = 0; 02075 memset(s->last_mv, 0, sizeof(s->last_mv)); 02076 02077 s->last_mv_dir = 0; 02078 02079 switch(s->codec_id){ 02080 case CODEC_ID_H263: 02081 case CODEC_ID_H263P: 02082 case CODEC_ID_FLV1: 02083 if (CONFIG_H263_ENCODER) 02084 s->gob_index = ff_h263_get_gob_height(s); 02085 break; 02086 case CODEC_ID_MPEG4: 02087 if(CONFIG_MPEG4_ENCODER && s->partitioned_frame) 02088 ff_mpeg4_init_partitions(s); 02089 break; 02090 } 02091 02092 s->resync_mb_x=0; 02093 s->resync_mb_y=0; 02094 s->first_slice_line = 1; 02095 s->ptr_lastgob = s->pb.buf; 02096 for(mb_y= s->start_mb_y; mb_y < s->end_mb_y; mb_y++) { 02097 // printf("row %d at %X\n", s->mb_y, (int)s); 02098 s->mb_x=0; 02099 s->mb_y= mb_y; 02100 02101 ff_set_qscale(s, s->qscale); 02102 ff_init_block_index(s); 02103 02104 for(mb_x=0; mb_x < s->mb_width; mb_x++) { 02105 int xy= mb_y*s->mb_stride + mb_x; // removed const, H261 needs to adjust this 02106 int mb_type= s->mb_type[xy]; 02107 // int d; 02108 int dmin= INT_MAX; 02109 int dir; 02110 02111 if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < MAX_MB_BYTES){ 02112 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n"); 02113 return -1; 02114 } 02115 if(s->data_partitioning){ 02116 if( s->pb2 .buf_end - s->pb2 .buf - (put_bits_count(&s-> pb2)>>3) < MAX_MB_BYTES 02117 || s->tex_pb.buf_end - s->tex_pb.buf - (put_bits_count(&s->tex_pb )>>3) < MAX_MB_BYTES){ 02118 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n"); 02119 return -1; 02120 } 02121 } 02122 02123 s->mb_x = mb_x; 02124 s->mb_y = mb_y; // moved into loop, can get changed by H.261 02125 ff_update_block_index(s); 02126 02127 if(CONFIG_H261_ENCODER && s->codec_id == CODEC_ID_H261){ 02128 ff_h261_reorder_mb_index(s); 02129 xy= s->mb_y*s->mb_stride + s->mb_x; 02130 mb_type= s->mb_type[xy]; 02131 } 02132 02133 /* write gob / video packet header */ 02134 if(s->rtp_mode){ 02135 int current_packet_size, is_gob_start; 02136 02137 current_packet_size= ((put_bits_count(&s->pb)+7)>>3) - (s->ptr_lastgob - s->pb.buf); 02138 02139 is_gob_start= s->avctx->rtp_payload_size && current_packet_size >= s->avctx->rtp_payload_size && mb_y + mb_x>0; 02140 02141 if(s->start_mb_y == mb_y && mb_y > 0 && mb_x==0) is_gob_start=1; 02142 02143 switch(s->codec_id){ 02144 case CODEC_ID_H263: 02145 case CODEC_ID_H263P: 02146 if(!s->h263_slice_structured) 02147 if(s->mb_x || s->mb_y%s->gob_index) is_gob_start=0; 02148 break; 02149 case CODEC_ID_MPEG2VIDEO: 02150 if(s->mb_x==0 && s->mb_y!=0) is_gob_start=1; 02151 case CODEC_ID_MPEG1VIDEO: 02152 if(s->mb_skip_run) is_gob_start=0; 02153 break; 02154 } 02155 02156 if(is_gob_start){ 02157 if(s->start_mb_y != mb_y || mb_x!=0){ 02158 write_slice_end(s); 02159 02160 if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->partitioned_frame){ 02161 ff_mpeg4_init_partitions(s); 02162 } 02163 } 02164 02165 assert((put_bits_count(&s->pb)&7) == 0); 02166 current_packet_size= put_bits_ptr(&s->pb) - s->ptr_lastgob; 02167 02168 if(s->avctx->error_rate && s->resync_mb_x + s->resync_mb_y > 0){ 02169 int r= put_bits_count(&s->pb)/8 + s->picture_number + 16 + s->mb_x + s->mb_y; 02170 int d= 100 / s->avctx->error_rate; 02171 if(r % d == 0){ 02172 current_packet_size=0; 02173 #ifndef ALT_BITSTREAM_WRITER 02174 s->pb.buf_ptr= s->ptr_lastgob; 02175 #endif 02176 assert(put_bits_ptr(&s->pb) == s->ptr_lastgob); 02177 } 02178 } 02179 02180 if (s->avctx->rtp_callback){ 02181 int number_mb = (mb_y - s->resync_mb_y)*s->mb_width + mb_x - s->resync_mb_x; 02182 s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, current_packet_size, number_mb); 02183 } 02184 02185 switch(s->codec_id){ 02186 case CODEC_ID_MPEG4: 02187 if (CONFIG_MPEG4_ENCODER) { 02188 ff_mpeg4_encode_video_packet_header(s); 02189 ff_mpeg4_clean_buffers(s); 02190 } 02191 break; 02192 case CODEC_ID_MPEG1VIDEO: 02193 case CODEC_ID_MPEG2VIDEO: 02194 if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER) { 02195 ff_mpeg1_encode_slice_header(s); 02196 ff_mpeg1_clean_buffers(s); 02197 } 02198 break; 02199 case CODEC_ID_H263: 02200 case CODEC_ID_H263P: 02201 if (CONFIG_H263_ENCODER) 02202 h263_encode_gob_header(s, mb_y); 02203 break; 02204 } 02205 02206 if(s->flags&CODEC_FLAG_PASS1){ 02207 int bits= put_bits_count(&s->pb); 02208 s->misc_bits+= bits - s->last_bits; 02209 s->last_bits= bits; 02210 } 02211 02212 s->ptr_lastgob += current_packet_size; 02213 s->first_slice_line=1; 02214 s->resync_mb_x=mb_x; 02215 s->resync_mb_y=mb_y; 02216 } 02217 } 02218 02219 if( (s->resync_mb_x == s->mb_x) 02220 && s->resync_mb_y+1 == s->mb_y){ 02221 s->first_slice_line=0; 02222 } 02223 02224 s->mb_skipped=0; 02225 s->dquant=0; //only for QP_RD 02226 02227 if(mb_type & (mb_type-1) || (s->flags & CODEC_FLAG_QP_RD)){ // more than 1 MB type possible or CODEC_FLAG_QP_RD 02228 int next_block=0; 02229 int pb_bits_count, pb2_bits_count, tex_pb_bits_count; 02230 02231 copy_context_before_encode(&backup_s, s, -1); 02232 backup_s.pb= s->pb; 02233 best_s.data_partitioning= s->data_partitioning; 02234 best_s.partitioned_frame= s->partitioned_frame; 02235 if(s->data_partitioning){ 02236 backup_s.pb2= s->pb2; 02237 backup_s.tex_pb= s->tex_pb; 02238 } 02239 02240 if(mb_type&CANDIDATE_MB_TYPE_INTER){ 02241 s->mv_dir = MV_DIR_FORWARD; 02242 s->mv_type = MV_TYPE_16X16; 02243 s->mb_intra= 0; 02244 s->mv[0][0][0] = s->p_mv_table[xy][0]; 02245 s->mv[0][0][1] = s->p_mv_table[xy][1]; 02246 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER, pb, pb2, tex_pb, 02247 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]); 02248 } 02249 if(mb_type&CANDIDATE_MB_TYPE_INTER_I){ 02250 s->mv_dir = MV_DIR_FORWARD; 02251 s->mv_type = MV_TYPE_FIELD; 02252 s->mb_intra= 0; 02253 for(i=0; i<2; i++){ 02254 j= s->field_select[0][i] = s->p_field_select_table[i][xy]; 02255 s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0]; 02256 s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1]; 02257 } 02258 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER_I, pb, pb2, tex_pb, 02259 &dmin, &next_block, 0, 0); 02260 } 02261 if(mb_type&CANDIDATE_MB_TYPE_SKIPPED){ 02262 s->mv_dir = MV_DIR_FORWARD; 02263 s->mv_type = MV_TYPE_16X16; 02264 s->mb_intra= 0; 02265 s->mv[0][0][0] = 0; 02266 s->mv[0][0][1] = 0; 02267 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_SKIPPED, pb, pb2, tex_pb, 02268 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]); 02269 } 02270 if(mb_type&CANDIDATE_MB_TYPE_INTER4V){ 02271 s->mv_dir = MV_DIR_FORWARD; 02272 s->mv_type = MV_TYPE_8X8; 02273 s->mb_intra= 0; 02274 for(i=0; i<4; i++){ 02275 s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0]; 02276 s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1]; 02277 } 02278 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER4V, pb, pb2, tex_pb, 02279 &dmin, &next_block, 0, 0); 02280 } 02281 if(mb_type&CANDIDATE_MB_TYPE_FORWARD){ 02282 s->mv_dir = MV_DIR_FORWARD; 02283 s->mv_type = MV_TYPE_16X16; 02284 s->mb_intra= 0; 02285 s->mv[0][0][0] = s->b_forw_mv_table[xy][0]; 02286 s->mv[0][0][1] = s->b_forw_mv_table[xy][1]; 02287 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD, pb, pb2, tex_pb, 02288 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]); 02289 } 02290 if(mb_type&CANDIDATE_MB_TYPE_BACKWARD){ 02291 s->mv_dir = MV_DIR_BACKWARD; 02292 s->mv_type = MV_TYPE_16X16; 02293 s->mb_intra= 0; 02294 s->mv[1][0][0] = s->b_back_mv_table[xy][0]; 02295 s->mv[1][0][1] = s->b_back_mv_table[xy][1]; 02296 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD, pb, pb2, tex_pb, 02297 &dmin, &next_block, s->mv[1][0][0], s->mv[1][0][1]); 02298 } 02299 if(mb_type&CANDIDATE_MB_TYPE_BIDIR){ 02300 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD; 02301 s->mv_type = MV_TYPE_16X16; 02302 s->mb_intra= 0; 02303 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0]; 02304 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1]; 02305 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0]; 02306 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1]; 02307 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR, pb, pb2, tex_pb, 02308 &dmin, &next_block, 0, 0); 02309 } 02310 if(mb_type&CANDIDATE_MB_TYPE_FORWARD_I){ 02311 s->mv_dir = MV_DIR_FORWARD; 02312 s->mv_type = MV_TYPE_FIELD; 02313 s->mb_intra= 0; 02314 for(i=0; i<2; i++){ 02315 j= s->field_select[0][i] = s->b_field_select_table[0][i][xy]; 02316 s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0]; 02317 s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1]; 02318 } 02319 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD_I, pb, pb2, tex_pb, 02320 &dmin, &next_block, 0, 0); 02321 } 02322 if(mb_type&CANDIDATE_MB_TYPE_BACKWARD_I){ 02323 s->mv_dir = MV_DIR_BACKWARD; 02324 s->mv_type = MV_TYPE_FIELD; 02325 s->mb_intra= 0; 02326 for(i=0; i<2; i++){ 02327 j= s->field_select[1][i] = s->b_field_select_table[1][i][xy]; 02328 s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0]; 02329 s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1]; 02330 } 02331 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD_I, pb, pb2, tex_pb, 02332 &dmin, &next_block, 0, 0); 02333 } 02334 if(mb_type&CANDIDATE_MB_TYPE_BIDIR_I){ 02335 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD; 02336 s->mv_type = MV_TYPE_FIELD; 02337 s->mb_intra= 0; 02338 for(dir=0; dir<2; dir++){ 02339 for(i=0; i<2; i++){ 02340 j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy]; 02341 s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0]; 02342 s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1]; 02343 } 02344 } 02345 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR_I, pb, pb2, tex_pb, 02346 &dmin, &next_block, 0, 0); 02347 } 02348 if(mb_type&CANDIDATE_MB_TYPE_INTRA){ 02349 s->mv_dir = 0; 02350 s->mv_type = MV_TYPE_16X16; 02351 s->mb_intra= 1; 02352 s->mv[0][0][0] = 0; 02353 s->mv[0][0][1] = 0; 02354 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTRA, pb, pb2, tex_pb, 02355 &dmin, &next_block, 0, 0); 02356 if(s->h263_pred || s->h263_aic){ 02357 if(best_s.mb_intra) 02358 s->mbintra_table[mb_x + mb_y*s->mb_stride]=1; 02359 else 02360 ff_clean_intra_table_entries(s); //old mode? 02361 } 02362 } 02363 02364 if((s->flags & CODEC_FLAG_QP_RD) && dmin < INT_MAX){ 02365 if(best_s.mv_type==MV_TYPE_16X16){ //FIXME move 4mv after QPRD 02366 const int last_qp= backup_s.qscale; 02367 int qpi, qp, dc[6]; 02368 DCTELEM ac[6][16]; 02369 const int mvdir= (best_s.mv_dir&MV_DIR_BACKWARD) ? 1 : 0; 02370 static const int dquant_tab[4]={-1,1,-2,2}; 02371 02372 assert(backup_s.dquant == 0); 02373 02374 //FIXME intra 02375 s->mv_dir= best_s.mv_dir; 02376 s->mv_type = MV_TYPE_16X16; 02377 s->mb_intra= best_s.mb_intra; 02378 s->mv[0][0][0] = best_s.mv[0][0][0]; 02379 s->mv[0][0][1] = best_s.mv[0][0][1]; 02380 s->mv[1][0][0] = best_s.mv[1][0][0]; 02381 s->mv[1][0][1] = best_s.mv[1][0][1]; 02382 02383 qpi = s->pict_type == AV_PICTURE_TYPE_B ? 2 : 0; 02384 for(; qpi<4; qpi++){ 02385 int dquant= dquant_tab[qpi]; 02386 qp= last_qp + dquant; 02387 if(qp < s->avctx->qmin || qp > s->avctx->qmax) 02388 continue; 02389 backup_s.dquant= dquant; 02390 if(s->mb_intra && s->dc_val[0]){ 02391 for(i=0; i<6; i++){ 02392 dc[i]= s->dc_val[0][ s->block_index[i] ]; 02393 memcpy(ac[i], s->ac_val[0][s->block_index[i]], sizeof(DCTELEM)*16); 02394 } 02395 } 02396 02397 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb, 02398 &dmin, &next_block, s->mv[mvdir][0][0], s->mv[mvdir][0][1]); 02399 if(best_s.qscale != qp){ 02400 if(s->mb_intra && s->dc_val[0]){ 02401 for(i=0; i<6; i++){ 02402 s->dc_val[0][ s->block_index[i] ]= dc[i]; 02403 memcpy(s->ac_val[0][s->block_index[i]], ac[i], sizeof(DCTELEM)*16); 02404 } 02405 } 02406 } 02407 } 02408 } 02409 } 02410 if(CONFIG_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT){ 02411 int mx= s->b_direct_mv_table[xy][0]; 02412 int my= s->b_direct_mv_table[xy][1]; 02413 02414 backup_s.dquant = 0; 02415 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT; 02416 s->mb_intra= 0; 02417 ff_mpeg4_set_direct_mv(s, mx, my); 02418 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb, 02419 &dmin, &next_block, mx, my); 02420 } 02421 if(CONFIG_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT0){ 02422 backup_s.dquant = 0; 02423 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT; 02424 s->mb_intra= 0; 02425 ff_mpeg4_set_direct_mv(s, 0, 0); 02426 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb, 02427 &dmin, &next_block, 0, 0); 02428 } 02429 if(!best_s.mb_intra && s->flags2&CODEC_FLAG2_SKIP_RD){ 02430 int coded=0; 02431 for(i=0; i<6; i++) 02432 coded |= s->block_last_index[i]; 02433 if(coded){ 02434 int mx,my; 02435 memcpy(s->mv, best_s.mv, sizeof(s->mv)); 02436 if(CONFIG_MPEG4_ENCODER && best_s.mv_dir & MV_DIRECT){ 02437 mx=my=0; //FIXME find the one we actually used 02438 ff_mpeg4_set_direct_mv(s, mx, my); 02439 }else if(best_s.mv_dir&MV_DIR_BACKWARD){ 02440 mx= s->mv[1][0][0]; 02441 my= s->mv[1][0][1]; 02442 }else{ 02443 mx= s->mv[0][0][0]; 02444 my= s->mv[0][0][1]; 02445 } 02446 02447 s->mv_dir= best_s.mv_dir; 02448 s->mv_type = best_s.mv_type; 02449 s->mb_intra= 0; 02450 /* s->mv[0][0][0] = best_s.mv[0][0][0]; 02451 s->mv[0][0][1] = best_s.mv[0][0][1]; 02452 s->mv[1][0][0] = best_s.mv[1][0][0]; 02453 s->mv[1][0][1] = best_s.mv[1][0][1];*/ 02454 backup_s.dquant= 0; 02455 s->skipdct=1; 02456 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb, 02457 &dmin, &next_block, mx, my); 02458 s->skipdct=0; 02459 } 02460 } 02461 02462 s->current_picture.qscale_table[xy]= best_s.qscale; 02463 02464 copy_context_after_encode(s, &best_s, -1); 02465 02466 pb_bits_count= put_bits_count(&s->pb); 02467 flush_put_bits(&s->pb); 02468 ff_copy_bits(&backup_s.pb, bit_buf[next_block^1], pb_bits_count); 02469 s->pb= backup_s.pb; 02470 02471 if(s->data_partitioning){ 02472 pb2_bits_count= put_bits_count(&s->pb2); 02473 flush_put_bits(&s->pb2); 02474 ff_copy_bits(&backup_s.pb2, bit_buf2[next_block^1], pb2_bits_count); 02475 s->pb2= backup_s.pb2; 02476 02477 tex_pb_bits_count= put_bits_count(&s->tex_pb); 02478 flush_put_bits(&s->tex_pb); 02479 ff_copy_bits(&backup_s.tex_pb, bit_buf_tex[next_block^1], tex_pb_bits_count); 02480 s->tex_pb= backup_s.tex_pb; 02481 } 02482 s->last_bits= put_bits_count(&s->pb); 02483 02484 if (CONFIG_H263_ENCODER && 02485 s->out_format == FMT_H263 && s->pict_type!=AV_PICTURE_TYPE_B) 02486 ff_h263_update_motion_val(s); 02487 02488 if(next_block==0){ //FIXME 16 vs linesize16 02489 s->dsp.put_pixels_tab[0][0](s->dest[0], s->rd_scratchpad , s->linesize ,16); 02490 s->dsp.put_pixels_tab[1][0](s->dest[1], s->rd_scratchpad + 16*s->linesize , s->uvlinesize, 8); 02491 s->dsp.put_pixels_tab[1][0](s->dest[2], s->rd_scratchpad + 16*s->linesize + 8, s->uvlinesize, 8); 02492 } 02493 02494 if(s->avctx->mb_decision == FF_MB_DECISION_BITS) 02495 MPV_decode_mb(s, s->block); 02496 } else { 02497 int motion_x = 0, motion_y = 0; 02498 s->mv_type=MV_TYPE_16X16; 02499 // only one MB-Type possible 02500 02501 switch(mb_type){ 02502 case CANDIDATE_MB_TYPE_INTRA: 02503 s->mv_dir = 0; 02504 s->mb_intra= 1; 02505 motion_x= s->mv[0][0][0] = 0; 02506 motion_y= s->mv[0][0][1] = 0; 02507 break; 02508 case CANDIDATE_MB_TYPE_INTER: 02509 s->mv_dir = MV_DIR_FORWARD; 02510 s->mb_intra= 0; 02511 motion_x= s->mv[0][0][0] = s->p_mv_table[xy][0]; 02512 motion_y= s->mv[0][0][1] = s->p_mv_table[xy][1]; 02513 break; 02514 case CANDIDATE_MB_TYPE_INTER_I: 02515 s->mv_dir = MV_DIR_FORWARD; 02516 s->mv_type = MV_TYPE_FIELD; 02517 s->mb_intra= 0; 02518 for(i=0; i<2; i++){ 02519 j= s->field_select[0][i] = s->p_field_select_table[i][xy]; 02520 s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0]; 02521 s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1]; 02522 } 02523 break; 02524 case CANDIDATE_MB_TYPE_INTER4V: 02525 s->mv_dir = MV_DIR_FORWARD; 02526 s->mv_type = MV_TYPE_8X8; 02527 s->mb_intra= 0; 02528 for(i=0; i<4; i++){ 02529 s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0]; 02530 s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1]; 02531 } 02532 break; 02533 case CANDIDATE_MB_TYPE_DIRECT: 02534 if (CONFIG_MPEG4_ENCODER) { 02535 s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT; 02536 s->mb_intra= 0; 02537 motion_x=s->b_direct_mv_table[xy][0]; 02538 motion_y=s->b_direct_mv_table[xy][1]; 02539 ff_mpeg4_set_direct_mv(s, motion_x, motion_y); 02540 } 02541 break; 02542 case CANDIDATE_MB_TYPE_DIRECT0: 02543 if (CONFIG_MPEG4_ENCODER) { 02544 s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT; 02545 s->mb_intra= 0; 02546 ff_mpeg4_set_direct_mv(s, 0, 0); 02547 } 02548 break; 02549 case CANDIDATE_MB_TYPE_BIDIR: 02550 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD; 02551 s->mb_intra= 0; 02552 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0]; 02553 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1]; 02554 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0]; 02555 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1]; 02556 break; 02557 case CANDIDATE_MB_TYPE_BACKWARD: 02558 s->mv_dir = MV_DIR_BACKWARD; 02559 s->mb_intra= 0; 02560 motion_x= s->mv[1][0][0] = s->b_back_mv_table[xy][0]; 02561 motion_y= s->mv[1][0][1] = s->b_back_mv_table[xy][1]; 02562 break; 02563 case CANDIDATE_MB_TYPE_FORWARD: 02564 s->mv_dir = MV_DIR_FORWARD; 02565 s->mb_intra= 0; 02566 motion_x= s->mv[0][0][0] = s->b_forw_mv_table[xy][0]; 02567 motion_y= s->mv[0][0][1] = s->b_forw_mv_table[xy][1]; 02568 // printf(" %d %d ", motion_x, motion_y); 02569 break; 02570 case CANDIDATE_MB_TYPE_FORWARD_I: 02571 s->mv_dir = MV_DIR_FORWARD; 02572 s->mv_type = MV_TYPE_FIELD; 02573 s->mb_intra= 0; 02574 for(i=0; i<2; i++){ 02575 j= s->field_select[0][i] = s->b_field_select_table[0][i][xy]; 02576 s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0]; 02577 s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1]; 02578 } 02579 break; 02580 case CANDIDATE_MB_TYPE_BACKWARD_I: 02581 s->mv_dir = MV_DIR_BACKWARD; 02582 s->mv_type = MV_TYPE_FIELD; 02583 s->mb_intra= 0; 02584 for(i=0; i<2; i++){ 02585 j= s->field_select[1][i] = s->b_field_select_table[1][i][xy]; 02586 s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0]; 02587 s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1]; 02588 } 02589 break; 02590 case CANDIDATE_MB_TYPE_BIDIR_I: 02591 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD; 02592 s->mv_type = MV_TYPE_FIELD; 02593 s->mb_intra= 0; 02594 for(dir=0; dir<2; dir++){ 02595 for(i=0; i<2; i++){ 02596 j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy]; 02597 s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0]; 02598 s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1]; 02599 } 02600 } 02601 break; 02602 default: 02603 av_log(s->avctx, AV_LOG_ERROR, "illegal MB type\n"); 02604 } 02605 02606 encode_mb(s, motion_x, motion_y); 02607 02608 // RAL: Update last macroblock type 02609 s->last_mv_dir = s->mv_dir; 02610 02611 if (CONFIG_H263_ENCODER && 02612 s->out_format == FMT_H263 && s->pict_type!=AV_PICTURE_TYPE_B) 02613 ff_h263_update_motion_val(s); 02614 02615 MPV_decode_mb(s, s->block); 02616 } 02617 02618 /* clean the MV table in IPS frames for direct mode in B frames */ 02619 if(s->mb_intra /* && I,P,S_TYPE */){ 02620 s->p_mv_table[xy][0]=0; 02621 s->p_mv_table[xy][1]=0; 02622 } 02623 02624 if(s->flags&CODEC_FLAG_PSNR){ 02625 int w= 16; 02626 int h= 16; 02627 02628 if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16; 02629 if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16; 02630 02631 s->current_picture.error[0] += sse( 02632 s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16, 02633 s->dest[0], w, h, s->linesize); 02634 s->current_picture.error[1] += sse( 02635 s, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*chr_h, 02636 s->dest[1], w>>1, h>>s->chroma_y_shift, s->uvlinesize); 02637 s->current_picture.error[2] += sse( 02638 s, s->new_picture.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*chr_h, 02639 s->dest[2], w>>1, h>>s->chroma_y_shift, s->uvlinesize); 02640 } 02641 if(s->loop_filter){ 02642 if(CONFIG_H263_ENCODER && s->out_format == FMT_H263) 02643 ff_h263_loop_filter(s); 02644 } 02645 //printf("MB %d %d bits\n", s->mb_x+s->mb_y*s->mb_stride, put_bits_count(&s->pb)); 02646 } 02647 } 02648 02649 //not beautiful here but we must write it before flushing so it has to be here 02650 if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version && s->msmpeg4_version<4 && s->pict_type == AV_PICTURE_TYPE_I) 02651 msmpeg4_encode_ext_header(s); 02652 02653 write_slice_end(s); 02654 02655 /* Send the last GOB if RTP */ 02656 if (s->avctx->rtp_callback) { 02657 int number_mb = (mb_y - s->resync_mb_y)*s->mb_width - s->resync_mb_x; 02658 pdif = put_bits_ptr(&s->pb) - s->ptr_lastgob; 02659 /* Call the RTP callback to send the last GOB */ 02660 emms_c(); 02661 s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, pdif, number_mb); 02662 } 02663 02664 return 0; 02665 } 02666 02667 #define MERGE(field) dst->field += src->field; src->field=0 02668 static void merge_context_after_me(MpegEncContext *dst, MpegEncContext *src){ 02669 MERGE(me.scene_change_score); 02670 MERGE(me.mc_mb_var_sum_temp); 02671 MERGE(me.mb_var_sum_temp); 02672 } 02673 02674 static void merge_context_after_encode(MpegEncContext *dst, MpegEncContext *src){ 02675 int i; 02676 02677 MERGE(dct_count[0]); //note, the other dct vars are not part of the context 02678 MERGE(dct_count[1]); 02679 MERGE(mv_bits); 02680 MERGE(i_tex_bits); 02681 MERGE(p_tex_bits); 02682 MERGE(i_count); 02683 MERGE(f_count); 02684 MERGE(b_count); 02685 MERGE(skip_count); 02686 MERGE(misc_bits); 02687 MERGE(error_count); 02688 MERGE(padding_bug_score); 02689 MERGE(current_picture.error[0]); 02690 MERGE(current_picture.error[1]); 02691 MERGE(current_picture.error[2]); 02692 02693 if(dst->avctx->noise_reduction){ 02694 for(i=0; i<64; i++){ 02695 MERGE(dct_error_sum[0][i]); 02696 MERGE(dct_error_sum[1][i]); 02697 } 02698 } 02699 02700 assert(put_bits_count(&src->pb) % 8 ==0); 02701 assert(put_bits_count(&dst->pb) % 8 ==0); 02702 ff_copy_bits(&dst->pb, src->pb.buf, put_bits_count(&src->pb)); 02703 flush_put_bits(&dst->pb); 02704 } 02705 02706 static int estimate_qp(MpegEncContext *s, int dry_run){ 02707 if (s->next_lambda){ 02708 s->current_picture_ptr->quality= 02709 s->current_picture.quality = s->next_lambda; 02710 if(!dry_run) s->next_lambda= 0; 02711 } else if (!s->fixed_qscale) { 02712 s->current_picture_ptr->quality= 02713 s->current_picture.quality = ff_rate_estimate_qscale(s, dry_run); 02714 if (s->current_picture.quality < 0) 02715 return -1; 02716 } 02717 02718 if(s->adaptive_quant){ 02719 switch(s->codec_id){ 02720 case CODEC_ID_MPEG4: 02721 if (CONFIG_MPEG4_ENCODER) 02722 ff_clean_mpeg4_qscales(s); 02723 break; 02724 case CODEC_ID_H263: 02725 case CODEC_ID_H263P: 02726 case CODEC_ID_FLV1: 02727 if (CONFIG_H263_ENCODER) 02728 ff_clean_h263_qscales(s); 02729 break; 02730 default: 02731 ff_init_qscale_tab(s); 02732 } 02733 02734 s->lambda= s->lambda_table[0]; 02735 //FIXME broken 02736 }else 02737 s->lambda= s->current_picture.quality; 02738 //printf("%d %d\n", s->avctx->global_quality, s->current_picture.quality); 02739 update_qscale(s); 02740 return 0; 02741 } 02742 02743 /* must be called before writing the header */ 02744 static void set_frame_distances(MpegEncContext * s){ 02745 assert(s->current_picture_ptr->pts != AV_NOPTS_VALUE); 02746 s->time= s->current_picture_ptr->pts*s->avctx->time_base.num; 02747 02748 if(s->pict_type==AV_PICTURE_TYPE_B){ 02749 s->pb_time= s->pp_time - (s->last_non_b_time - s->time); 02750 assert(s->pb_time > 0 && s->pb_time < s->pp_time); 02751 }else{ 02752 s->pp_time= s->time - s->last_non_b_time; 02753 s->last_non_b_time= s->time; 02754 assert(s->picture_number==0 || s->pp_time > 0); 02755 } 02756 } 02757 02758 static int encode_picture(MpegEncContext *s, int picture_number) 02759 { 02760 int i; 02761 int bits; 02762 int context_count = s->avctx->thread_count; 02763 02764 s->picture_number = picture_number; 02765 02766 /* Reset the average MB variance */ 02767 s->me.mb_var_sum_temp = 02768 s->me.mc_mb_var_sum_temp = 0; 02769 02770 /* we need to initialize some time vars before we can encode b-frames */ 02771 // RAL: Condition added for MPEG1VIDEO 02772 if (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO || (s->h263_pred && !s->msmpeg4_version)) 02773 set_frame_distances(s); 02774 if(CONFIG_MPEG4_ENCODER && s->codec_id == CODEC_ID_MPEG4) 02775 ff_set_mpeg4_time(s); 02776 02777 s->me.scene_change_score=0; 02778 02779 // s->lambda= s->current_picture_ptr->quality; //FIXME qscale / ... stuff for ME rate distortion 02780 02781 if(s->pict_type==AV_PICTURE_TYPE_I){ 02782 if(s->msmpeg4_version >= 3) s->no_rounding=1; 02783 else s->no_rounding=0; 02784 }else if(s->pict_type!=AV_PICTURE_TYPE_B){ 02785 if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4) 02786 s->no_rounding ^= 1; 02787 } 02788 02789 if(s->flags & CODEC_FLAG_PASS2){ 02790 if (estimate_qp(s,1) < 0) 02791 return -1; 02792 ff_get_2pass_fcode(s); 02793 }else if(!(s->flags & CODEC_FLAG_QSCALE)){ 02794 if(s->pict_type==AV_PICTURE_TYPE_B) 02795 s->lambda= s->last_lambda_for[s->pict_type]; 02796 else 02797 s->lambda= s->last_lambda_for[s->last_non_b_pict_type]; 02798 update_qscale(s); 02799 } 02800 02801 s->mb_intra=0; //for the rate distortion & bit compare functions 02802 for(i=1; i<context_count; i++){ 02803 ff_update_duplicate_context(s->thread_context[i], s); 02804 } 02805 02806 if(ff_init_me(s)<0) 02807 return -1; 02808 02809 /* Estimate motion for every MB */ 02810 if(s->pict_type != AV_PICTURE_TYPE_I){ 02811 s->lambda = (s->lambda * s->avctx->me_penalty_compensation + 128)>>8; 02812 s->lambda2= (s->lambda2* (int64_t)s->avctx->me_penalty_compensation + 128)>>8; 02813 if(s->pict_type != AV_PICTURE_TYPE_B && s->avctx->me_threshold==0){ 02814 if((s->avctx->pre_me && s->last_non_b_pict_type==AV_PICTURE_TYPE_I) || s->avctx->pre_me==2){ 02815 s->avctx->execute(s->avctx, pre_estimate_motion_thread, &s->thread_context[0], NULL, context_count, sizeof(void*)); 02816 } 02817 } 02818 02819 s->avctx->execute(s->avctx, estimate_motion_thread, &s->thread_context[0], NULL, context_count, sizeof(void*)); 02820 }else /* if(s->pict_type == AV_PICTURE_TYPE_I) */{ 02821 /* I-Frame */ 02822 for(i=0; i<s->mb_stride*s->mb_height; i++) 02823 s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA; 02824 02825 if(!s->fixed_qscale){ 02826 /* finding spatial complexity for I-frame rate control */ 02827 s->avctx->execute(s->avctx, mb_var_thread, &s->thread_context[0], NULL, context_count, sizeof(void*)); 02828 } 02829 } 02830 for(i=1; i<context_count; i++){ 02831 merge_context_after_me(s, s->thread_context[i]); 02832 } 02833 s->current_picture.mc_mb_var_sum= s->current_picture_ptr->mc_mb_var_sum= s->me.mc_mb_var_sum_temp; 02834 s->current_picture. mb_var_sum= s->current_picture_ptr-> mb_var_sum= s->me. mb_var_sum_temp; 02835 emms_c(); 02836 02837 if(s->me.scene_change_score > s->avctx->scenechange_threshold && s->pict_type == AV_PICTURE_TYPE_P){ 02838 s->pict_type= AV_PICTURE_TYPE_I; 02839 for(i=0; i<s->mb_stride*s->mb_height; i++) 02840 s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA; 02841 //printf("Scene change detected, encoding as I Frame %d %d\n", s->current_picture.mb_var_sum, s->current_picture.mc_mb_var_sum); 02842 } 02843 02844 if(!s->umvplus){ 02845 if(s->pict_type==AV_PICTURE_TYPE_P || s->pict_type==AV_PICTURE_TYPE_S) { 02846 s->f_code= ff_get_best_fcode(s, s->p_mv_table, CANDIDATE_MB_TYPE_INTER); 02847 02848 if(s->flags & CODEC_FLAG_INTERLACED_ME){ 02849 int a,b; 02850 a= ff_get_best_fcode(s, s->p_field_mv_table[0][0], CANDIDATE_MB_TYPE_INTER_I); //FIXME field_select 02851 b= ff_get_best_fcode(s, s->p_field_mv_table[1][1], CANDIDATE_MB_TYPE_INTER_I); 02852 s->f_code= FFMAX3(s->f_code, a, b); 02853 } 02854 02855 ff_fix_long_p_mvs(s); 02856 ff_fix_long_mvs(s, NULL, 0, s->p_mv_table, s->f_code, CANDIDATE_MB_TYPE_INTER, 0); 02857 if(s->flags & CODEC_FLAG_INTERLACED_ME){ 02858 int j; 02859 for(i=0; i<2; i++){ 02860 for(j=0; j<2; j++) 02861 ff_fix_long_mvs(s, s->p_field_select_table[i], j, 02862 s->p_field_mv_table[i][j], s->f_code, CANDIDATE_MB_TYPE_INTER_I, 0); 02863 } 02864 } 02865 } 02866 02867 if(s->pict_type==AV_PICTURE_TYPE_B){ 02868 int a, b; 02869 02870 a = ff_get_best_fcode(s, s->b_forw_mv_table, CANDIDATE_MB_TYPE_FORWARD); 02871 b = ff_get_best_fcode(s, s->b_bidir_forw_mv_table, CANDIDATE_MB_TYPE_BIDIR); 02872 s->f_code = FFMAX(a, b); 02873 02874 a = ff_get_best_fcode(s, s->b_back_mv_table, CANDIDATE_MB_TYPE_BACKWARD); 02875 b = ff_get_best_fcode(s, s->b_bidir_back_mv_table, CANDIDATE_MB_TYPE_BIDIR); 02876 s->b_code = FFMAX(a, b); 02877 02878 ff_fix_long_mvs(s, NULL, 0, s->b_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_FORWARD, 1); 02879 ff_fix_long_mvs(s, NULL, 0, s->b_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BACKWARD, 1); 02880 ff_fix_long_mvs(s, NULL, 0, s->b_bidir_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_BIDIR, 1); 02881 ff_fix_long_mvs(s, NULL, 0, s->b_bidir_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BIDIR, 1); 02882 if(s->flags & CODEC_FLAG_INTERLACED_ME){ 02883 int dir, j; 02884 for(dir=0; dir<2; dir++){ 02885 for(i=0; i<2; i++){ 02886 for(j=0; j<2; j++){ 02887 int type= dir ? (CANDIDATE_MB_TYPE_BACKWARD_I|CANDIDATE_MB_TYPE_BIDIR_I) 02888 : (CANDIDATE_MB_TYPE_FORWARD_I |CANDIDATE_MB_TYPE_BIDIR_I); 02889 ff_fix_long_mvs(s, s->b_field_select_table[dir][i], j, 02890 s->b_field_mv_table[dir][i][j], dir ? s->b_code : s->f_code, type, 1); 02891 } 02892 } 02893 } 02894 } 02895 } 02896 } 02897 02898 if (estimate_qp(s, 0) < 0) 02899 return -1; 02900 02901 if(s->qscale < 3 && s->max_qcoeff<=128 && s->pict_type==AV_PICTURE_TYPE_I && !(s->flags & CODEC_FLAG_QSCALE)) 02902 s->qscale= 3; //reduce clipping problems 02903 02904 if (s->out_format == FMT_MJPEG) { 02905 /* for mjpeg, we do include qscale in the matrix */ 02906 for(i=1;i<64;i++){ 02907 int j= s->dsp.idct_permutation[i]; 02908 02909 s->intra_matrix[j] = av_clip_uint8((ff_mpeg1_default_intra_matrix[i] * s->qscale) >> 3); 02910 } 02911 s->y_dc_scale_table= 02912 s->c_dc_scale_table= ff_mpeg2_dc_scale_table[s->intra_dc_precision]; 02913 s->intra_matrix[0] = ff_mpeg2_dc_scale_table[s->intra_dc_precision][8]; 02914 ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16, 02915 s->intra_matrix, s->intra_quant_bias, 8, 8, 1); 02916 s->qscale= 8; 02917 } 02918 02919 //FIXME var duplication 02920 s->current_picture_ptr->key_frame= 02921 s->current_picture.key_frame= s->pict_type == AV_PICTURE_TYPE_I; //FIXME pic_ptr 02922 s->current_picture_ptr->pict_type= 02923 s->current_picture.pict_type= s->pict_type; 02924 02925 if(s->current_picture.key_frame) 02926 s->picture_in_gop_number=0; 02927 02928 s->last_bits= put_bits_count(&s->pb); 02929 switch(s->out_format) { 02930 case FMT_MJPEG: 02931 if (CONFIG_MJPEG_ENCODER) 02932 ff_mjpeg_encode_picture_header(s); 02933 break; 02934 case FMT_H261: 02935 if (CONFIG_H261_ENCODER) 02936 ff_h261_encode_picture_header(s, picture_number); 02937 break; 02938 case FMT_H263: 02939 if (CONFIG_WMV2_ENCODER && s->codec_id == CODEC_ID_WMV2) 02940 ff_wmv2_encode_picture_header(s, picture_number); 02941 else if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version) 02942 msmpeg4_encode_picture_header(s, picture_number); 02943 else if (CONFIG_MPEG4_ENCODER && s->h263_pred) 02944 mpeg4_encode_picture_header(s, picture_number); 02945 else if (CONFIG_RV10_ENCODER && s->codec_id == CODEC_ID_RV10) 02946 rv10_encode_picture_header(s, picture_number); 02947 else if (CONFIG_RV20_ENCODER && s->codec_id == CODEC_ID_RV20) 02948 rv20_encode_picture_header(s, picture_number); 02949 else if (CONFIG_FLV_ENCODER && s->codec_id == CODEC_ID_FLV1) 02950 ff_flv_encode_picture_header(s, picture_number); 02951 else if (CONFIG_H263_ENCODER) 02952 h263_encode_picture_header(s, picture_number); 02953 break; 02954 case FMT_MPEG1: 02955 if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER) 02956 mpeg1_encode_picture_header(s, picture_number); 02957 break; 02958 case FMT_H264: 02959 break; 02960 default: 02961 assert(0); 02962 } 02963 bits= put_bits_count(&s->pb); 02964 s->header_bits= bits - s->last_bits; 02965 02966 for(i=1; i<context_count; i++){ 02967 update_duplicate_context_after_me(s->thread_context[i], s); 02968 } 02969 s->avctx->execute(s->avctx, encode_thread, &s->thread_context[0], NULL, context_count, sizeof(void*)); 02970 for(i=1; i<context_count; i++){ 02971 merge_context_after_encode(s, s->thread_context[i]); 02972 } 02973 emms_c(); 02974 return 0; 02975 } 02976 02977 static void denoise_dct_c(MpegEncContext *s, DCTELEM *block){ 02978 const int intra= s->mb_intra; 02979 int i; 02980 02981 s->dct_count[intra]++; 02982 02983 for(i=0; i<64; i++){ 02984 int level= block[i]; 02985 02986 if(level){ 02987 if(level>0){ 02988 s->dct_error_sum[intra][i] += level; 02989 level -= s->dct_offset[intra][i]; 02990 if(level<0) level=0; 02991 }else{ 02992 s->dct_error_sum[intra][i] -= level; 02993 level += s->dct_offset[intra][i]; 02994 if(level>0) level=0; 02995 } 02996 block[i]= level; 02997 } 02998 } 02999 } 03000 03001 static int dct_quantize_trellis_c(MpegEncContext *s, 03002 DCTELEM *block, int n, 03003 int qscale, int *overflow){ 03004 const int *qmat; 03005 const uint8_t *scantable= s->intra_scantable.scantable; 03006 const uint8_t *perm_scantable= s->intra_scantable.permutated; 03007 int max=0; 03008 unsigned int threshold1, threshold2; 03009 int bias=0; 03010 int run_tab[65]; 03011 int level_tab[65]; 03012 int score_tab[65]; 03013 int survivor[65]; 03014 int survivor_count; 03015 int last_run=0; 03016 int last_level=0; 03017 int last_score= 0; 03018 int last_i; 03019 int coeff[2][64]; 03020 int coeff_count[64]; 03021 int qmul, qadd, start_i, last_non_zero, i, dc; 03022 const int esc_length= s->ac_esc_length; 03023 uint8_t * length; 03024 uint8_t * last_length; 03025 const int lambda= s->lambda2 >> (FF_LAMBDA_SHIFT - 6); 03026 03027 s->dsp.fdct (block); 03028 03029 if(s->dct_error_sum) 03030 s->denoise_dct(s, block); 03031 qmul= qscale*16; 03032 qadd= ((qscale-1)|1)*8; 03033 03034 if (s->mb_intra) { 03035 int q; 03036 if (!s->h263_aic) { 03037 if (n < 4) 03038 q = s->y_dc_scale; 03039 else 03040 q = s->c_dc_scale; 03041 q = q << 3; 03042 } else{ 03043 /* For AIC we skip quant/dequant of INTRADC */ 03044 q = 1 << 3; 03045 qadd=0; 03046 } 03047 03048 /* note: block[0] is assumed to be positive */ 03049 block[0] = (block[0] + (q >> 1)) / q; 03050 start_i = 1; 03051 last_non_zero = 0; 03052 qmat = s->q_intra_matrix[qscale]; 03053 if(s->mpeg_quant || s->out_format == FMT_MPEG1) 03054 bias= 1<<(QMAT_SHIFT-1); 03055 length = s->intra_ac_vlc_length; 03056 last_length= s->intra_ac_vlc_last_length; 03057 } else { 03058 start_i = 0; 03059 last_non_zero = -1; 03060 qmat = s->q_inter_matrix[qscale]; 03061 length = s->inter_ac_vlc_length; 03062 last_length= s->inter_ac_vlc_last_length; 03063 } 03064 last_i= start_i; 03065 03066 threshold1= (1<<QMAT_SHIFT) - bias - 1; 03067 threshold2= (threshold1<<1); 03068 03069 for(i=63; i>=start_i; i--) { 03070 const int j = scantable[i]; 03071 int level = block[j] * qmat[j]; 03072 03073 if(((unsigned)(level+threshold1))>threshold2){ 03074 last_non_zero = i; 03075 break; 03076 } 03077 } 03078 03079 for(i=start_i; i<=last_non_zero; i++) { 03080 const int j = scantable[i]; 03081 int level = block[j] * qmat[j]; 03082 03083 // if( bias+level >= (1<<(QMAT_SHIFT - 3)) 03084 // || bias-level >= (1<<(QMAT_SHIFT - 3))){ 03085 if(((unsigned)(level+threshold1))>threshold2){ 03086 if(level>0){ 03087 level= (bias + level)>>QMAT_SHIFT; 03088 coeff[0][i]= level; 03089 coeff[1][i]= level-1; 03090 // coeff[2][k]= level-2; 03091 }else{ 03092 level= (bias - level)>>QMAT_SHIFT; 03093 coeff[0][i]= -level; 03094 coeff[1][i]= -level+1; 03095 // coeff[2][k]= -level+2; 03096 } 03097 coeff_count[i]= FFMIN(level, 2); 03098 assert(coeff_count[i]); 03099 max |=level; 03100 }else{ 03101 coeff[0][i]= (level>>31)|1; 03102 coeff_count[i]= 1; 03103 } 03104 } 03105 03106 *overflow= s->max_qcoeff < max; //overflow might have happened 03107 03108 if(last_non_zero < start_i){ 03109 memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM)); 03110 return last_non_zero; 03111 } 03112 03113 score_tab[start_i]= 0; 03114 survivor[0]= start_i; 03115 survivor_count= 1; 03116 03117 for(i=start_i; i<=last_non_zero; i++){ 03118 int level_index, j, zero_distortion; 03119 int dct_coeff= FFABS(block[ scantable[i] ]); 03120 int best_score=256*256*256*120; 03121 03122 if ( s->dsp.fdct == fdct_ifast 03123 #ifndef FAAN_POSTSCALE 03124 || s->dsp.fdct == ff_faandct 03125 #endif 03126 ) 03127 dct_coeff= (dct_coeff*ff_inv_aanscales[ scantable[i] ]) >> 12; 03128 zero_distortion= dct_coeff*dct_coeff; 03129 03130 for(level_index=0; level_index < coeff_count[i]; level_index++){ 03131 int distortion; 03132 int level= coeff[level_index][i]; 03133 const int alevel= FFABS(level); 03134 int unquant_coeff; 03135 03136 assert(level); 03137 03138 if(s->out_format == FMT_H263){ 03139 unquant_coeff= alevel*qmul + qadd; 03140 }else{ //MPEG1 03141 j= s->dsp.idct_permutation[ scantable[i] ]; //FIXME optimize 03142 if(s->mb_intra){ 03143 unquant_coeff = (int)( alevel * qscale * s->intra_matrix[j]) >> 3; 03144 unquant_coeff = (unquant_coeff - 1) | 1; 03145 }else{ 03146 unquant_coeff = ((( alevel << 1) + 1) * qscale * ((int) s->inter_matrix[j])) >> 4; 03147 unquant_coeff = (unquant_coeff - 1) | 1; 03148 } 03149 unquant_coeff<<= 3; 03150 } 03151 03152 distortion= (unquant_coeff - dct_coeff) * (unquant_coeff - dct_coeff) - zero_distortion; 03153 level+=64; 03154 if((level&(~127)) == 0){ 03155 for(j=survivor_count-1; j>=0; j--){ 03156 int run= i - survivor[j]; 03157 int score= distortion + length[UNI_AC_ENC_INDEX(run, level)]*lambda; 03158 score += score_tab[i-run]; 03159 03160 if(score < best_score){ 03161 best_score= score; 03162 run_tab[i+1]= run; 03163 level_tab[i+1]= level-64; 03164 } 03165 } 03166 03167 if(s->out_format == FMT_H263){ 03168 for(j=survivor_count-1; j>=0; j--){ 03169 int run= i - survivor[j]; 03170 int score= distortion + last_length[UNI_AC_ENC_INDEX(run, level)]*lambda; 03171 score += score_tab[i-run]; 03172 if(score < last_score){ 03173 last_score= score; 03174 last_run= run; 03175 last_level= level-64; 03176 last_i= i+1; 03177 } 03178 } 03179 } 03180 }else{ 03181 distortion += esc_length*lambda; 03182 for(j=survivor_count-1; j>=0; j--){ 03183 int run= i - survivor[j]; 03184 int score= distortion + score_tab[i-run]; 03185 03186 if(score < best_score){ 03187 best_score= score; 03188 run_tab[i+1]= run; 03189 level_tab[i+1]= level-64; 03190 } 03191 } 03192 03193 if(s->out_format == FMT_H263){ 03194 for(j=survivor_count-1; j>=0; j--){ 03195 int run= i - survivor[j]; 03196 int score= distortion + score_tab[i-run]; 03197 if(score < last_score){ 03198 last_score= score; 03199 last_run= run; 03200 last_level= level-64; 03201 last_i= i+1; 03202 } 03203 } 03204 } 03205 } 03206 } 03207 03208 score_tab[i+1]= best_score; 03209 03210 //Note: there is a vlc code in mpeg4 which is 1 bit shorter then another one with a shorter run and the same level 03211 if(last_non_zero <= 27){ 03212 for(; survivor_count; survivor_count--){ 03213 if(score_tab[ survivor[survivor_count-1] ] <= best_score) 03214 break; 03215 } 03216 }else{ 03217 for(; survivor_count; survivor_count--){ 03218 if(score_tab[ survivor[survivor_count-1] ] <= best_score + lambda) 03219 break; 03220 } 03221 } 03222 03223 survivor[ survivor_count++ ]= i+1; 03224 } 03225 03226 if(s->out_format != FMT_H263){ 03227 last_score= 256*256*256*120; 03228 for(i= survivor[0]; i<=last_non_zero + 1; i++){ 03229 int score= score_tab[i]; 03230 if(i) score += lambda*2; //FIXME exacter? 03231 03232 if(score < last_score){ 03233 last_score= score; 03234 last_i= i; 03235 last_level= level_tab[i]; 03236 last_run= run_tab[i]; 03237 } 03238 } 03239 } 03240 03241 s->coded_score[n] = last_score; 03242 03243 dc= FFABS(block[0]); 03244 last_non_zero= last_i - 1; 03245 memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM)); 03246 03247 if(last_non_zero < start_i) 03248 return last_non_zero; 03249 03250 if(last_non_zero == 0 && start_i == 0){ 03251 int best_level= 0; 03252 int best_score= dc * dc; 03253 03254 for(i=0; i<coeff_count[0]; i++){ 03255 int level= coeff[i][0]; 03256 int alevel= FFABS(level); 03257 int unquant_coeff, score, distortion; 03258 03259 if(s->out_format == FMT_H263){ 03260 unquant_coeff= (alevel*qmul + qadd)>>3; 03261 }else{ //MPEG1 03262 unquant_coeff = ((( alevel << 1) + 1) * qscale * ((int) s->inter_matrix[0])) >> 4; 03263 unquant_coeff = (unquant_coeff - 1) | 1; 03264 } 03265 unquant_coeff = (unquant_coeff + 4) >> 3; 03266 unquant_coeff<<= 3 + 3; 03267 03268 distortion= (unquant_coeff - dc) * (unquant_coeff - dc); 03269 level+=64; 03270 if((level&(~127)) == 0) score= distortion + last_length[UNI_AC_ENC_INDEX(0, level)]*lambda; 03271 else score= distortion + esc_length*lambda; 03272 03273 if(score < best_score){ 03274 best_score= score; 03275 best_level= level - 64; 03276 } 03277 } 03278 block[0]= best_level; 03279 s->coded_score[n] = best_score - dc*dc; 03280 if(best_level == 0) return -1; 03281 else return last_non_zero; 03282 } 03283 03284 i= last_i; 03285 assert(last_level); 03286 03287 block[ perm_scantable[last_non_zero] ]= last_level; 03288 i -= last_run + 1; 03289 03290 for(; i>start_i; i -= run_tab[i] + 1){ 03291 block[ perm_scantable[i-1] ]= level_tab[i]; 03292 } 03293 03294 return last_non_zero; 03295 } 03296 03297 //#define REFINE_STATS 1 03298 static int16_t basis[64][64]; 03299 03300 static void build_basis(uint8_t *perm){ 03301 int i, j, x, y; 03302 emms_c(); 03303 for(i=0; i<8; i++){ 03304 for(j=0; j<8; j++){ 03305 for(y=0; y<8; y++){ 03306 for(x=0; x<8; x++){ 03307 double s= 0.25*(1<<BASIS_SHIFT); 03308 int index= 8*i + j; 03309 int perm_index= perm[index]; 03310 if(i==0) s*= sqrt(0.5); 03311 if(j==0) s*= sqrt(0.5); 03312 basis[perm_index][8*x + y]= lrintf(s * cos((M_PI/8.0)*i*(x+0.5)) * cos((M_PI/8.0)*j*(y+0.5))); 03313 } 03314 } 03315 } 03316 } 03317 } 03318 03319 static int dct_quantize_refine(MpegEncContext *s, //FIXME breaks denoise? 03320 DCTELEM *block, int16_t *weight, DCTELEM *orig, 03321 int n, int qscale){ 03322 int16_t rem[64]; 03323 LOCAL_ALIGNED_16(DCTELEM, d1, [64]); 03324 const uint8_t *scantable= s->intra_scantable.scantable; 03325 const uint8_t *perm_scantable= s->intra_scantable.permutated; 03326 // unsigned int threshold1, threshold2; 03327 // int bias=0; 03328 int run_tab[65]; 03329 int prev_run=0; 03330 int prev_level=0; 03331 int qmul, qadd, start_i, last_non_zero, i, dc; 03332 uint8_t * length; 03333 uint8_t * last_length; 03334 int lambda; 03335 int rle_index, run, q = 1, sum; //q is only used when s->mb_intra is true 03336 #ifdef REFINE_STATS 03337 static int count=0; 03338 static int after_last=0; 03339 static int to_zero=0; 03340 static int from_zero=0; 03341 static int raise=0; 03342 static int lower=0; 03343 static int messed_sign=0; 03344 #endif 03345 03346 if(basis[0][0] == 0) 03347 build_basis(s->dsp.idct_permutation); 03348 03349 qmul= qscale*2; 03350 qadd= (qscale-1)|1; 03351 if (s->mb_intra) { 03352 if (!s->h263_aic) { 03353 if (n < 4) 03354 q = s->y_dc_scale; 03355 else 03356 q = s->c_dc_scale; 03357 } else{ 03358 /* For AIC we skip quant/dequant of INTRADC */ 03359 q = 1; 03360 qadd=0; 03361 } 03362 q <<= RECON_SHIFT-3; 03363 /* note: block[0] is assumed to be positive */ 03364 dc= block[0]*q; 03365 // block[0] = (block[0] + (q >> 1)) / q; 03366 start_i = 1; 03367 // if(s->mpeg_quant || s->out_format == FMT_MPEG1) 03368 // bias= 1<<(QMAT_SHIFT-1); 03369 length = s->intra_ac_vlc_length; 03370 last_length= s->intra_ac_vlc_last_length; 03371 } else { 03372 dc= 0; 03373 start_i = 0; 03374 length = s->inter_ac_vlc_length; 03375 last_length= s->inter_ac_vlc_last_length; 03376 } 03377 last_non_zero = s->block_last_index[n]; 03378 03379 #ifdef REFINE_STATS 03380 {START_TIMER 03381 #endif 03382 dc += (1<<(RECON_SHIFT-1)); 03383 for(i=0; i<64; i++){ 03384 rem[i]= dc - (orig[i]<<RECON_SHIFT); //FIXME use orig dirrectly instead of copying to rem[] 03385 } 03386 #ifdef REFINE_STATS 03387 STOP_TIMER("memset rem[]")} 03388 #endif 03389 sum=0; 03390 for(i=0; i<64; i++){ 03391 int one= 36; 03392 int qns=4; 03393 int w; 03394 03395 w= FFABS(weight[i]) + qns*one; 03396 w= 15 + (48*qns*one + w/2)/w; // 16 .. 63 03397 03398 weight[i] = w; 03399 // w=weight[i] = (63*qns + (w/2)) / w; 03400 03401 assert(w>0); 03402 assert(w<(1<<6)); 03403 sum += w*w; 03404 } 03405 lambda= sum*(uint64_t)s->lambda2 >> (FF_LAMBDA_SHIFT - 6 + 6 + 6 + 6); 03406 #ifdef REFINE_STATS 03407 {START_TIMER 03408 #endif 03409 run=0; 03410 rle_index=0; 03411 for(i=start_i; i<=last_non_zero; i++){ 03412 int j= perm_scantable[i]; 03413 const int level= block[j]; 03414 int coeff; 03415 03416 if(level){ 03417 if(level<0) coeff= qmul*level - qadd; 03418 else coeff= qmul*level + qadd; 03419 run_tab[rle_index++]=run; 03420 run=0; 03421 03422 s->dsp.add_8x8basis(rem, basis[j], coeff); 03423 }else{ 03424 run++; 03425 } 03426 } 03427 #ifdef REFINE_STATS 03428 if(last_non_zero>0){ 03429 STOP_TIMER("init rem[]") 03430 } 03431 } 03432 03433 {START_TIMER 03434 #endif 03435 for(;;){ 03436 int best_score=s->dsp.try_8x8basis(rem, weight, basis[0], 0); 03437 int best_coeff=0; 03438 int best_change=0; 03439 int run2, best_unquant_change=0, analyze_gradient; 03440 #ifdef REFINE_STATS 03441 {START_TIMER 03442 #endif 03443 analyze_gradient = last_non_zero > 2 || s->avctx->quantizer_noise_shaping >= 3; 03444 03445 if(analyze_gradient){ 03446 #ifdef REFINE_STATS 03447 {START_TIMER 03448 #endif 03449 for(i=0; i<64; i++){ 03450 int w= weight[i]; 03451 03452 d1[i] = (rem[i]*w*w + (1<<(RECON_SHIFT+12-1)))>>(RECON_SHIFT+12); 03453 } 03454 #ifdef REFINE_STATS 03455 STOP_TIMER("rem*w*w")} 03456 {START_TIMER 03457 #endif 03458 s->dsp.fdct(d1); 03459 #ifdef REFINE_STATS 03460 STOP_TIMER("dct")} 03461 #endif 03462 } 03463 03464 if(start_i){ 03465 const int level= block[0]; 03466 int change, old_coeff; 03467 03468 assert(s->mb_intra); 03469 03470 old_coeff= q*level; 03471 03472 for(change=-1; change<=1; change+=2){ 03473 int new_level= level + change; 03474 int score, new_coeff; 03475 03476 new_coeff= q*new_level; 03477 if(new_coeff >= 2048 || new_coeff < 0) 03478 continue; 03479 03480 score= s->dsp.try_8x8basis(rem, weight, basis[0], new_coeff - old_coeff); 03481 if(score<best_score){ 03482 best_score= score; 03483 best_coeff= 0; 03484 best_change= change; 03485 best_unquant_change= new_coeff - old_coeff; 03486 } 03487 } 03488 } 03489 03490 run=0; 03491 rle_index=0; 03492 run2= run_tab[rle_index++]; 03493 prev_level=0; 03494 prev_run=0; 03495 03496 for(i=start_i; i<64; i++){ 03497 int j= perm_scantable[i]; 03498 const int level= block[j]; 03499 int change, old_coeff; 03500 03501 if(s->avctx->quantizer_noise_shaping < 3 && i > last_non_zero + 1) 03502 break; 03503 03504 if(level){ 03505 if(level<0) old_coeff= qmul*level - qadd; 03506 else old_coeff= qmul*level + qadd; 03507 run2= run_tab[rle_index++]; //FIXME ! maybe after last 03508 }else{ 03509 old_coeff=0; 03510 run2--; 03511 assert(run2>=0 || i >= last_non_zero ); 03512 } 03513 03514 for(change=-1; change<=1; change+=2){ 03515 int new_level= level + change; 03516 int score, new_coeff, unquant_change; 03517 03518 score=0; 03519 if(s->avctx->quantizer_noise_shaping < 2 && FFABS(new_level) > FFABS(level)) 03520 continue; 03521 03522 if(new_level){ 03523 if(new_level<0) new_coeff= qmul*new_level - qadd; 03524 else new_coeff= qmul*new_level + qadd; 03525 if(new_coeff >= 2048 || new_coeff <= -2048) 03526 continue; 03527 //FIXME check for overflow 03528 03529 if(level){ 03530 if(level < 63 && level > -63){ 03531 if(i < last_non_zero) 03532 score += length[UNI_AC_ENC_INDEX(run, new_level+64)] 03533 - length[UNI_AC_ENC_INDEX(run, level+64)]; 03534 else 03535 score += last_length[UNI_AC_ENC_INDEX(run, new_level+64)] 03536 - last_length[UNI_AC_ENC_INDEX(run, level+64)]; 03537 } 03538 }else{ 03539 assert(FFABS(new_level)==1); 03540 03541 if(analyze_gradient){ 03542 int g= d1[ scantable[i] ]; 03543 if(g && (g^new_level) >= 0) 03544 continue; 03545 } 03546 03547 if(i < last_non_zero){ 03548 int next_i= i + run2 + 1; 03549 int next_level= block[ perm_scantable[next_i] ] + 64; 03550 03551 if(next_level&(~127)) 03552 next_level= 0; 03553 03554 if(next_i < last_non_zero) 03555 score += length[UNI_AC_ENC_INDEX(run, 65)] 03556 + length[UNI_AC_ENC_INDEX(run2, next_level)] 03557 - length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]; 03558 else 03559 score += length[UNI_AC_ENC_INDEX(run, 65)] 03560 + last_length[UNI_AC_ENC_INDEX(run2, next_level)] 03561 - last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]; 03562 }else{ 03563 score += last_length[UNI_AC_ENC_INDEX(run, 65)]; 03564 if(prev_level){ 03565 score += length[UNI_AC_ENC_INDEX(prev_run, prev_level)] 03566 - last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)]; 03567 } 03568 } 03569 } 03570 }else{ 03571 new_coeff=0; 03572 assert(FFABS(level)==1); 03573 03574 if(i < last_non_zero){ 03575 int next_i= i + run2 + 1; 03576 int next_level= block[ perm_scantable[next_i] ] + 64; 03577 03578 if(next_level&(~127)) 03579 next_level= 0; 03580 03581 if(next_i < last_non_zero) 03582 score += length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)] 03583 - length[UNI_AC_ENC_INDEX(run2, next_level)] 03584 - length[UNI_AC_ENC_INDEX(run, 65)]; 03585 else 03586 score += last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)] 03587 - last_length[UNI_AC_ENC_INDEX(run2, next_level)] 03588 - length[UNI_AC_ENC_INDEX(run, 65)]; 03589 }else{ 03590 score += -last_length[UNI_AC_ENC_INDEX(run, 65)]; 03591 if(prev_level){ 03592 score += last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)] 03593 - length[UNI_AC_ENC_INDEX(prev_run, prev_level)]; 03594 } 03595 } 03596 } 03597 03598 score *= lambda; 03599 03600 unquant_change= new_coeff - old_coeff; 03601 assert((score < 100*lambda && score > -100*lambda) || lambda==0); 03602 03603 score+= s->dsp.try_8x8basis(rem, weight, basis[j], unquant_change); 03604 if(score<best_score){ 03605 best_score= score; 03606 best_coeff= i; 03607 best_change= change; 03608 best_unquant_change= unquant_change; 03609 } 03610 } 03611 if(level){ 03612 prev_level= level + 64; 03613 if(prev_level&(~127)) 03614 prev_level= 0; 03615 prev_run= run; 03616 run=0; 03617 }else{ 03618 run++; 03619 } 03620 } 03621 #ifdef REFINE_STATS 03622 STOP_TIMER("iterative step")} 03623 #endif 03624 03625 if(best_change){ 03626 int j= perm_scantable[ best_coeff ]; 03627 03628 block[j] += best_change; 03629 03630 if(best_coeff > last_non_zero){ 03631 last_non_zero= best_coeff; 03632 assert(block[j]); 03633 #ifdef REFINE_STATS 03634 after_last++; 03635 #endif 03636 }else{ 03637 #ifdef REFINE_STATS 03638 if(block[j]){ 03639 if(block[j] - best_change){ 03640 if(FFABS(block[j]) > FFABS(block[j] - best_change)){ 03641 raise++; 03642 }else{ 03643 lower++; 03644 } 03645 }else{ 03646 from_zero++; 03647 } 03648 }else{ 03649 to_zero++; 03650 } 03651 #endif 03652 for(; last_non_zero>=start_i; last_non_zero--){ 03653 if(block[perm_scantable[last_non_zero]]) 03654 break; 03655 } 03656 } 03657 #ifdef REFINE_STATS 03658 count++; 03659 if(256*256*256*64 % count == 0){ 03660 printf("after_last:%d to_zero:%d from_zero:%d raise:%d lower:%d sign:%d xyp:%d/%d/%d\n", after_last, to_zero, from_zero, raise, lower, messed_sign, s->mb_x, s->mb_y, s->picture_number); 03661 } 03662 #endif 03663 run=0; 03664 rle_index=0; 03665 for(i=start_i; i<=last_non_zero; i++){ 03666 int j= perm_scantable[i]; 03667 const int level= block[j]; 03668 03669 if(level){ 03670 run_tab[rle_index++]=run; 03671 run=0; 03672 }else{ 03673 run++; 03674 } 03675 } 03676 03677 s->dsp.add_8x8basis(rem, basis[j], best_unquant_change); 03678 }else{ 03679 break; 03680 } 03681 } 03682 #ifdef REFINE_STATS 03683 if(last_non_zero>0){ 03684 STOP_TIMER("iterative search") 03685 } 03686 } 03687 #endif 03688 03689 return last_non_zero; 03690 } 03691 03692 int dct_quantize_c(MpegEncContext *s, 03693 DCTELEM *block, int n, 03694 int qscale, int *overflow) 03695 { 03696 int i, j, level, last_non_zero, q, start_i; 03697 const int *qmat; 03698 const uint8_t *scantable= s->intra_scantable.scantable; 03699 int bias; 03700 int max=0; 03701 unsigned int threshold1, threshold2; 03702 03703 s->dsp.fdct (block); 03704 03705 if(s->dct_error_sum) 03706 s->denoise_dct(s, block); 03707 03708 if (s->mb_intra) { 03709 if (!s->h263_aic) { 03710 if (n < 4) 03711 q = s->y_dc_scale; 03712 else 03713 q = s->c_dc_scale; 03714 q = q << 3; 03715 } else 03716 /* For AIC we skip quant/dequant of INTRADC */ 03717 q = 1 << 3; 03718 03719 /* note: block[0] is assumed to be positive */ 03720 block[0] = (block[0] + (q >> 1)) / q; 03721 start_i = 1; 03722 last_non_zero = 0; 03723 qmat = s->q_intra_matrix[qscale]; 03724 bias= s->intra_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT); 03725 } else { 03726 start_i = 0; 03727 last_non_zero = -1; 03728 qmat = s->q_inter_matrix[qscale]; 03729 bias= s->inter_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT); 03730 } 03731 threshold1= (1<<QMAT_SHIFT) - bias - 1; 03732 threshold2= (threshold1<<1); 03733 for(i=63;i>=start_i;i--) { 03734 j = scantable[i]; 03735 level = block[j] * qmat[j]; 03736 03737 if(((unsigned)(level+threshold1))>threshold2){ 03738 last_non_zero = i; 03739 break; 03740 }else{ 03741 block[j]=0; 03742 } 03743 } 03744 for(i=start_i; i<=last_non_zero; i++) { 03745 j = scantable[i]; 03746 level = block[j] * qmat[j]; 03747 03748 // if( bias+level >= (1<<QMAT_SHIFT) 03749 // || bias-level >= (1<<QMAT_SHIFT)){ 03750 if(((unsigned)(level+threshold1))>threshold2){ 03751 if(level>0){ 03752 level= (bias + level)>>QMAT_SHIFT; 03753 block[j]= level; 03754 }else{ 03755 level= (bias - level)>>QMAT_SHIFT; 03756 block[j]= -level; 03757 } 03758 max |=level; 03759 }else{ 03760 block[j]=0; 03761 } 03762 } 03763 *overflow= s->max_qcoeff < max; //overflow might have happened 03764 03765 /* we need this permutation so that we correct the IDCT, we only permute the !=0 elements */ 03766 if (s->dsp.idct_permutation_type != FF_NO_IDCT_PERM) 03767 ff_block_permute(block, s->dsp.idct_permutation, scantable, last_non_zero); 03768 03769 return last_non_zero; 03770 } 03771 03772 AVCodec ff_h263_encoder = { 03773 "h263", 03774 AVMEDIA_TYPE_VIDEO, 03775 CODEC_ID_H263, 03776 sizeof(MpegEncContext), 03777 MPV_encode_init, 03778 MPV_encode_picture, 03779 MPV_encode_end, 03780 .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE}, 03781 .long_name= NULL_IF_CONFIG_SMALL("H.263 / H.263-1996"), 03782 }; 03783 03784 AVCodec ff_h263p_encoder = { 03785 "h263p", 03786 AVMEDIA_TYPE_VIDEO, 03787 CODEC_ID_H263P, 03788 sizeof(MpegEncContext), 03789 MPV_encode_init, 03790 MPV_encode_picture, 03791 MPV_encode_end, 03792 .capabilities = CODEC_CAP_SLICE_THREADS, 03793 .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE}, 03794 .long_name= NULL_IF_CONFIG_SMALL("H.263+ / H.263-1998 / H.263 version 2"), 03795 }; 03796 03797 AVCodec ff_msmpeg4v2_encoder = { 03798 "msmpeg4v2", 03799 AVMEDIA_TYPE_VIDEO, 03800 CODEC_ID_MSMPEG4V2, 03801 sizeof(MpegEncContext), 03802 MPV_encode_init, 03803 MPV_encode_picture, 03804 MPV_encode_end, 03805 .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE}, 03806 .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 2"), 03807 }; 03808 03809 AVCodec ff_msmpeg4v3_encoder = { 03810 "msmpeg4", 03811 AVMEDIA_TYPE_VIDEO, 03812 CODEC_ID_MSMPEG4V3, 03813 sizeof(MpegEncContext), 03814 MPV_encode_init, 03815 MPV_encode_picture, 03816 MPV_encode_end, 03817 .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE}, 03818 .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 3"), 03819 }; 03820 03821 AVCodec ff_wmv1_encoder = { 03822 "wmv1", 03823 AVMEDIA_TYPE_VIDEO, 03824 CODEC_ID_WMV1, 03825 sizeof(MpegEncContext), 03826 MPV_encode_init, 03827 MPV_encode_picture, 03828 MPV_encode_end, 03829 .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE}, 03830 .long_name= NULL_IF_CONFIG_SMALL("Windows Media Video 7"), 03831 };