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   1 /*
   2  * The simplest mpeg encoder (well, it was the simplest!)
   3  * Copyright (c) 2000,2001 Fabrice Bellard.
   4  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
   5  *
   6  * 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
   7  *
   8  * This file is part of FFmpeg.
   9  *
  10  * FFmpeg is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU Lesser General Public
  12  * License as published by the Free Software Foundation; either
  13  * version 2.1 of the License, or (at your option) any later version.
  14  *
  15  * FFmpeg is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public
  21  * License along with FFmpeg; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  23  */
  24
  25 /**
  26  * @file mpegvideo_enc.c
  27  * The simplest mpeg encoder (well, it was the simplest!).
  28  */
  29
  30 #include "avcodec.h"
  31 #include "dsputil.h"
  32 #include "mpegvideo.h"
  33 #include "mpegvideo_common.h"
  34 #include "mjpegenc.h"
  35 #include "msmpeg4.h"
  36 #include "faandct.h"
  37 #include <limits.h>
  38
  39 //#undef NDEBUG
  40 //#include <assert.h>
  41
  42 static int encode_picture(MpegEncContext *s, int picture_number);
  43 static int dct_quantize_refine(MpegEncContext *s, DCTELEM *block, int16_t *weight, DCTELEM *orig, int n, int qscale);
  44 static int sse_mb(MpegEncContext *s);
  45
  46 /* enable all paranoid tests for rounding, overflows, etc... */
  47 //#define PARANOID
  48
  49 //#define DEBUG
  50
  51 static const uint16_t aanscales[64] = {
  52     /* precomputed values scaled up by 14 bits */
  53     16384, 22725, 21407, 19266, 16384, 12873,  8867,  4520,
  54     22725, 31521, 29692, 26722, 22725, 17855, 12299,  6270,
  55     21407, 29692, 27969, 25172, 21407, 16819, 11585,  5906,
  56     19266, 26722, 25172, 22654, 19266, 15137, 10426,  5315,
  57     16384, 22725, 21407, 19266, 16384, 12873,  8867,  4520,
  58     12873, 17855, 16819, 15137, 12873, 10114,  6967,  3552,
  59     8867 , 12299, 11585, 10426,  8867,  6967,  4799,  2446,
  60     4520 ,  6270,  5906,  5315,  4520,  3552,  2446,  1247
  61 };
  62
  63 static uint8_t default_mv_penalty[MAX_FCODE+1][MAX_MV*2+1];
  64 static uint8_t default_fcode_tab[MAX_MV*2+1];
  65
  66 enum PixelFormat ff_yuv420p_list[2]= {PIX_FMT_YUV420P, -1};
  67
  68 static void convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64],
  69                            const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra)
  70 {
  71     int qscale;
  72     int shift=0;
  73
  74     for(qscale=qmin; qscale<=qmax; qscale++){
  75         int i;
  76         if (dsp->fdct == ff_jpeg_fdct_islow
  77 #ifdef FAAN_POSTSCALE
  78             || dsp->fdct == ff_faandct
  79 #endif
  80             ) {
  81             for(i=0;i<64;i++) {
  82                 const int j= dsp->idct_permutation[i];
  83                 /* 16 <= qscale * quant_matrix[i] <= 7905 */
  84                 /* 19952         <= aanscales[i] * qscale * quant_matrix[i]           <= 249205026 */
  85                 /* (1<<36)/19952 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
  86                 /* 3444240       >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= 275 */
  87
  88                 qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) /
  89                                 (qscale * quant_matrix[j]));
  90             }
  91         } else if (dsp->fdct == fdct_ifast
  92 #ifndef FAAN_POSTSCALE
  93                    || dsp->fdct == ff_faandct
  94 #endif
  95                    ) {
  96             for(i=0;i<64;i++) {
  97                 const int j= dsp->idct_permutation[i];
  98                 /* 16 <= qscale * quant_matrix[i] <= 7905 */
  99                 /* 19952         <= aanscales[i] * qscale * quant_matrix[i]           <= 249205026 */
 100                 /* (1<<36)/19952 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
 101                 /* 3444240       >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= 275 */
 102
 103                 qmat[qscale][i] = (int)((UINT64_C(1) << (QMAT_SHIFT + 14)) /
 104                                 (aanscales[i] * qscale * quant_matrix[j]));
 105             }
 106         } else {
 107             for(i=0;i<64;i++) {
 108                 const int j= dsp->idct_permutation[i];
 109                 /* We can safely suppose that 16 <= quant_matrix[i] <= 255
 110                    So 16           <= qscale * quant_matrix[i]             <= 7905
 111                    so (1<<19) / 16 >= (1<<19) / (qscale * quant_matrix[i]) >= (1<<19) / 7905
 112                    so 32768        >= (1<<19) / (qscale * quant_matrix[i]) >= 67
 113                 */
 114                 qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) / (qscale * quant_matrix[j]));
 115 //                qmat  [qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[i]);
 116                 qmat16[qscale][0][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[j]);
 117
 118                 if(qmat16[qscale][0][i]==0 || qmat16[qscale][0][i]==128*256) qmat16[qscale][0][i]=128*256-1;
 119                 qmat16[qscale][1][i]= ROUNDED_DIV(bias<<(16-QUANT_BIAS_SHIFT), qmat16[qscale][0][i]);
 120             }
 121         }
 122
 123         for(i=intra; i<64; i++){
 124             int64_t max= 8191;
 125             if (dsp->fdct == fdct_ifast
 126 #ifndef FAAN_POSTSCALE
 127                    || dsp->fdct == ff_faandct
 128 #endif
 129                    ) {
 130                 max= (8191LL*aanscales[i]) >> 14;
 131             }
 132             while(((max * qmat[qscale][i]) >> shift) > INT_MAX){
 133                 shift++;
 134             }
 135         }
 136     }
 137     if(shift){
 138         av_log(NULL, AV_LOG_INFO, "Warning, QMAT_SHIFT is larger than %d, overflows possible\n", QMAT_SHIFT - shift);
 139     }
 140 }
 141
 142 static inline void update_qscale(MpegEncContext *s){
 143     s->qscale= (s->lambda*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
 144     s->qscale= av_clip(s->qscale, s->avctx->qmin, s->avctx->qmax);
 145
 146     s->lambda2= (s->lambda*s->lambda + FF_LAMBDA_SCALE/2) >> FF_LAMBDA_SHIFT;
 147 }
 148
 149 void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix){
 150     int i;
 151
 152     if(matrix){
 153         put_bits(pb, 1, 1);
 154         for(i=0;i<64;i++) {
 155             put_bits(pb, 8, matrix[ ff_zigzag_direct[i] ]);
 156         }
 157     }else
 158         put_bits(pb, 1, 0);
 159 }
 160
 161 static void copy_picture_attributes(MpegEncContext *s, AVFrame *dst, AVFrame *src){
 162     int i;
 163
 164     dst->pict_type              = src->pict_type;
 165     dst->quality                = src->quality;
 166     dst->coded_picture_number   = src->coded_picture_number;
 167     dst->display_picture_number = src->display_picture_number;
 168 //    dst->reference              = src->reference;
 169     dst->pts                    = src->pts;
 170     dst->interlaced_frame       = src->interlaced_frame;
 171     dst->top_field_first        = src->top_field_first;
 172
 173     if(s->avctx->me_threshold){
 174         if(!src->motion_val[0])
 175             av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_val not set!\n");
 176         if(!src->mb_type)
 177             av_log(s->avctx, AV_LOG_ERROR, "AVFrame.mb_type not set!\n");
 178         if(!src->ref_index[0])
 179             av_log(s->avctx, AV_LOG_ERROR, "AVFrame.ref_index not set!\n");
 180         if(src->motion_subsample_log2 != dst->motion_subsample_log2)
 181             av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_subsample_log2 doesn't match! (%d!=%d)\n",
 182             src->motion_subsample_log2, dst->motion_subsample_log2);
 183
 184         memcpy(dst->mb_type, src->mb_type, s->mb_stride * s->mb_height * sizeof(dst->mb_type[0]));
 185
 186         for(i=0; i<2; i++){
 187             int stride= ((16*s->mb_width )>>src->motion_subsample_log2) + 1;
 188             int height= ((16*s->mb_height)>>src->motion_subsample_log2);
 189
 190             if(src->motion_val[i] && src->motion_val[i] != dst->motion_val[i]){
 191                 memcpy(dst->motion_val[i], src->motion_val[i], 2*stride*height*sizeof(int16_t));
 192             }
 193             if(src->ref_index[i] && src->ref_index[i] != dst->ref_index[i]){
 194                 memcpy(dst->ref_index[i], src->ref_index[i], s->b8_stride*2*s->mb_height*sizeof(int8_t));
 195             }
 196         }
 197     }
 198 }
 199
 200 static void update_duplicate_context_after_me(MpegEncContext *dst, MpegEncContext *src){
 201 #define COPY(a) dst->a= src->a
 202     COPY(pict_type);
 203     COPY(current_picture);
 204     COPY(f_code);
 205     COPY(b_code);
 206     COPY(qscale);
 207     COPY(lambda);
 208     COPY(lambda2);
 209     COPY(picture_in_gop_number);
 210     COPY(gop_picture_number);
 211     COPY(frame_pred_frame_dct); //FIXME don't set in encode_header
 212     COPY(progressive_frame); //FIXME don't set in encode_header
 213     COPY(partitioned_frame); //FIXME don't set in encode_header
 214 #undef COPY
 215 }
 216
 217 /**
 218  * sets the given MpegEncContext to defaults for encoding.
 219  * the changed fields will not depend upon the prior state of the MpegEncContext.
 220  */
 221 static void MPV_encode_defaults(MpegEncContext *s){
 222     int i;
 223     MPV_common_defaults(s);
 224
 225     for(i=-16; i<16; i++){
 226         default_fcode_tab[i + MAX_MV]= 1;
 227     }
 228     s->me.mv_penalty= default_mv_penalty;
 229     s->fcode_tab= default_fcode_tab;
 230 }
 231
 232 /* init video encoder */
 233 int MPV_encode_init(AVCodecContext *avctx)
 234 {
 235     MpegEncContext *s = avctx->priv_data;
 236     int i;
 237     int chroma_h_shift, chroma_v_shift;
 238
 239     MPV_encode_defaults(s);
 240
 241     switch (avctx->codec_id) {
 242     case CODEC_ID_MPEG2VIDEO:
 243         if(avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P){
 244             av_log(avctx, AV_LOG_ERROR, "only YUV420 and YUV422 are supported\n");
 245             return -1;
 246         }
 247         break;
 248     case CODEC_ID_LJPEG:
 249     case CODEC_ID_MJPEG:
 250         if(avctx->pix_fmt != PIX_FMT_YUVJ420P && avctx->pix_fmt != PIX_FMT_YUVJ422P &&
 251            ((avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P) || avctx->strict_std_compliance>FF_COMPLIANCE_INOFFICIAL)){
 252             av_log(avctx, AV_LOG_ERROR, "colorspace not supported in jpeg\n");
 253             return -1;
 254         }
 255         break;
 256     default:
 257         if(avctx->pix_fmt != PIX_FMT_YUV420P){
 258             av_log(avctx, AV_LOG_ERROR, "only YUV420 is supported\n");
 259             return -1;
 260         }
 261     }
 262
 263     switch (avctx->pix_fmt) {
 264     case PIX_FMT_YUVJ422P:
 265     case PIX_FMT_YUV422P:
 266         s->chroma_format = CHROMA_422;
 267         break;
 268     case PIX_FMT_YUVJ420P:
 269     case PIX_FMT_YUV420P:
 270     default:
 271         s->chroma_format = CHROMA_420;
 272         break;
 273     }
 274
 275     s->bit_rate = avctx->bit_rate;
 276     s->width = avctx->width;
 277     s->height = avctx->height;
 278     if(avctx->gop_size > 600 && avctx->strict_std_compliance>FF_COMPLIANCE_EXPERIMENTAL){
 279         av_log(avctx, AV_LOG_ERROR, "Warning keyframe interval too large! reducing it ...\n");
 280         avctx->gop_size=600;
 281     }
 282     s->gop_size = avctx->gop_size;
 283     s->avctx = avctx;
 284     s->flags= avctx->flags;
 285     s->flags2= avctx->flags2;
 286     s->max_b_frames= avctx->max_b_frames;
 287     s->codec_id= avctx->codec->id;
 288     s->luma_elim_threshold  = avctx->luma_elim_threshold;
 289     s->chroma_elim_threshold= avctx->chroma_elim_threshold;
 290     s->strict_std_compliance= avctx->strict_std_compliance;
 291     s->data_partitioning= avctx->flags & CODEC_FLAG_PART;
 292     s->quarter_sample= (avctx->flags & CODEC_FLAG_QPEL)!=0;
 293     s->mpeg_quant= avctx->mpeg_quant;
 294     s->rtp_mode= !!avctx->rtp_payload_size;
 295     s->intra_dc_precision= avctx->intra_dc_precision;
 296     s->user_specified_pts = AV_NOPTS_VALUE;
 297
 298     if (s->gop_size <= 1) {
 299         s->intra_only = 1;
 300         s->gop_size = 12;
 301     } else {
 302         s->intra_only = 0;
 303     }
 304
 305     s->me_method = avctx->me_method;
 306
 307     /* Fixed QSCALE */
 308     s->fixed_qscale = !!(avctx->flags & CODEC_FLAG_QSCALE);
 309
 310     s->adaptive_quant= (   s->avctx->lumi_masking
 311                         || s->avctx->dark_masking
 312                         || s->avctx->temporal_cplx_masking
 313                         || s->avctx->spatial_cplx_masking
 314                         || s->avctx->p_masking
 315                         || s->avctx->border_masking
 316                         || (s->flags&CODEC_FLAG_QP_RD))
 317                        && !s->fixed_qscale;
 318
 319     s->obmc= !!(s->flags & CODEC_FLAG_OBMC);
 320     s->loop_filter= !!(s->flags & CODEC_FLAG_LOOP_FILTER);
 321     s->alternate_scan= !!(s->flags & CODEC_FLAG_ALT_SCAN);
 322     s->intra_vlc_format= !!(s->flags2 & CODEC_FLAG2_INTRA_VLC);
 323     s->q_scale_type= !!(s->flags2 & CODEC_FLAG2_NON_LINEAR_QUANT);
 324
 325     if(avctx->rc_max_rate && !avctx->rc_buffer_size){
 326         av_log(avctx, AV_LOG_ERROR, "a vbv buffer size is needed, for encoding with a maximum bitrate\n");
 327         return -1;
 328     }
 329
 330     if(avctx->rc_min_rate && avctx->rc_max_rate != avctx->rc_min_rate){
 331         av_log(avctx, AV_LOG_INFO, "Warning min_rate > 0 but min_rate != max_rate isn't recommended!\n");
 332     }
 333
 334     if(avctx->rc_min_rate && avctx->rc_min_rate > avctx->bit_rate){
 335         av_log(avctx, AV_LOG_ERROR, "bitrate below min bitrate\n");
 336         return -1;
 337     }
 338
 339     if(avctx->rc_max_rate && avctx->rc_max_rate < avctx->bit_rate){
 340         av_log(avctx, AV_LOG_INFO, "bitrate above max bitrate\n");
 341         return -1;
 342     }
 343
 344     if(avctx->rc_buffer_size && avctx->bit_rate*av_q2d(avctx->time_base) > avctx->rc_buffer_size){
 345         av_log(avctx, AV_LOG_ERROR, "VBV buffer too small for bitrate\n");
 346         return -1;
 347     }
 348
 349     if(avctx->bit_rate*av_q2d(avctx->time_base) > avctx->bit_rate_tolerance){
 350         av_log(avctx, AV_LOG_ERROR, "bitrate tolerance too small for bitrate\n");
 351         return -1;
 352     }
 353
 354     if(   s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate
 355        && (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO)
 356        && 90000LL * (avctx->rc_buffer_size-1) > s->avctx->rc_max_rate*0xFFFFLL){
 357
 358         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");
 359     }
 360
 361     if((s->flags & CODEC_FLAG_4MV) && s->codec_id != CODEC_ID_MPEG4
 362        && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P && s->codec_id != CODEC_ID_FLV1){
 363         av_log(avctx, AV_LOG_ERROR, "4MV not supported by codec\n");
 364         return -1;
 365     }
 366
 367     if(s->obmc && s->avctx->mb_decision != FF_MB_DECISION_SIMPLE){
 368         av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with simple mb decision\n");
 369         return -1;
 370     }
 371
 372     if(s->obmc && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P){
 373         av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with H263(+)\n");
 374         return -1;
 375     }
 376
 377     if(s->quarter_sample && s->codec_id != CODEC_ID_MPEG4){
 378         av_log(avctx, AV_LOG_ERROR, "qpel not supported by codec\n");
 379         return -1;
 380     }
 381
 382     if(s->data_partitioning && s->codec_id != CODEC_ID_MPEG4){
 383         av_log(avctx, AV_LOG_ERROR, "data partitioning not supported by codec\n");
 384         return -1;
 385     }
 386
 387     if(s->max_b_frames && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO){
 388         av_log(avctx, AV_LOG_ERROR, "b frames not supported by codec\n");
 389         return -1;
 390     }
 391
 392     if((s->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN))
 393        && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG2VIDEO){
 394         av_log(avctx, AV_LOG_ERROR, "interlacing not supported by codec\n");
 395         return -1;
 396     }
 397
 398     if(s->mpeg_quant && s->codec_id != CODEC_ID_MPEG4){ //FIXME mpeg2 uses that too
 399         av_log(avctx, AV_LOG_ERROR, "mpeg2 style quantization not supported by codec\n");
 400         return -1;
 401     }
 402
 403     if((s->flags & CODEC_FLAG_CBP_RD) && !(s->flags & CODEC_FLAG_TRELLIS_QUANT)){
 404         av_log(avctx, AV_LOG_ERROR, "CBP RD needs trellis quant\n");
 405         return -1;
 406     }
 407
 408     if((s->flags & CODEC_FLAG_QP_RD) && s->avctx->mb_decision != FF_MB_DECISION_RD){
 409         av_log(avctx, AV_LOG_ERROR, "QP RD needs mbd=2\n");
 410         return -1;
 411     }
 412
 413     if(s->avctx->scenechange_threshold < 1000000000 && (s->flags & CODEC_FLAG_CLOSED_GOP)){
 414         av_log(avctx, AV_LOG_ERROR, "closed gop with scene change detection arent supported yet, set threshold to 1000000000\n");
 415         return -1;
 416     }
 417
 418     if((s->flags2 & CODEC_FLAG2_INTRA_VLC) && s->codec_id != CODEC_ID_MPEG2VIDEO){
 419         av_log(avctx, AV_LOG_ERROR, "intra vlc table not supported by codec\n");
 420         return -1;
 421     }
 422
 423     if(s->flags & CODEC_FLAG_LOW_DELAY){
 424         if (s->codec_id != CODEC_ID_MPEG2VIDEO && s->codec_id != CODEC_ID_MPEG1VIDEO){
 425             av_log(avctx, AV_LOG_ERROR, "low delay forcing is only available for mpeg1/2\n");
 426             return -1;
 427         }
 428         if (s->max_b_frames != 0){
 429             av_log(avctx, AV_LOG_ERROR, "b frames cannot be used with low delay\n");
 430             return -1;
 431         }
 432     }
 433
 434     if(s->q_scale_type == 1){
 435         if(s->codec_id != CODEC_ID_MPEG2VIDEO){
 436             av_log(avctx, AV_LOG_ERROR, "non linear quant is only available for mpeg2\n");
 437             return -1;
 438         }
 439         if(avctx->qmax > 12){
 440             av_log(avctx, AV_LOG_ERROR, "non linear quant only supports qmax <= 12 currently\n");
 441             return -1;
 442         }
 443     }
 444
 445     if(s->avctx->thread_count > 1 && s->codec_id != CODEC_ID_MPEG4
 446        && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO
 447        && (s->codec_id != CODEC_ID_H263P || !(s->flags & CODEC_FLAG_H263P_SLICE_STRUCT))){
 448         av_log(avctx, AV_LOG_ERROR, "multi threaded encoding not supported by codec\n");
 449         return -1;
 450     }
 451
 452     if(s->avctx->thread_count > 1)
 453         s->rtp_mode= 1;
 454
 455     if(!avctx->time_base.den || !avctx->time_base.num){
 456         av_log(avctx, AV_LOG_ERROR, "framerate not set\n");
 457         return -1;
 458     }
 459
 460     i= (INT_MAX/2+128)>>8;
 461     if(avctx->me_threshold >= i){
 462         av_log(avctx, AV_LOG_ERROR, "me_threshold too large, max is %d\n", i - 1);
 463         return -1;
 464     }
 465     if(avctx->mb_threshold >= i){
 466         av_log(avctx, AV_LOG_ERROR, "mb_threshold too large, max is %d\n", i - 1);
 467         return -1;
 468     }
 469
 470     if(avctx->b_frame_strategy && (avctx->flags&CODEC_FLAG_PASS2)){
 471         av_log(avctx, AV_LOG_INFO, "notice: b_frame_strategy only affects the first pass\n");
 472         avctx->b_frame_strategy = 0;
 473     }
 474
 475     i= ff_gcd(avctx->time_base.den, avctx->time_base.num);
 476     if(i > 1){
 477         av_log(avctx, AV_LOG_INFO, "removing common factors from framerate\n");
 478         avctx->time_base.den /= i;
 479         avctx->time_base.num /= i;
 480 //        return -1;
 481     }
 482
 483     if(s->codec_id==CODEC_ID_MJPEG){
 484         s->intra_quant_bias= 1<<(QUANT_BIAS_SHIFT-1); //(a + x/2)/x
 485         s->inter_quant_bias= 0;
 486     }else if(s->mpeg_quant || s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO){
 487         s->intra_quant_bias= 3<<(QUANT_BIAS_SHIFT-3); //(a + x*3/8)/x
 488         s->inter_quant_bias= 0;
 489     }else{
 490         s->intra_quant_bias=0;
 491         s->inter_quant_bias=-(1<<(QUANT_BIAS_SHIFT-2)); //(a - x/4)/x
 492     }
 493
 494     if(avctx->intra_quant_bias != FF_DEFAULT_QUANT_BIAS)
 495         s->intra_quant_bias= avctx->intra_quant_bias;
 496     if(avctx->inter_quant_bias != FF_DEFAULT_QUANT_BIAS)
 497         s->inter_quant_bias= avctx->inter_quant_bias;
 498
 499     avcodec_get_chroma_sub_sample(avctx->pix_fmt, &chroma_h_shift, &chroma_v_shift);
 500
 501     if(avctx->codec_id == CODEC_ID_MPEG4 && s->avctx->time_base.den > (1<<16)-1){
 502         av_log(avctx, AV_LOG_ERROR, "timebase not supported by mpeg 4 standard\n");
 503         return -1;
 504     }
 505     s->time_increment_bits = av_log2(s->avctx->time_base.den - 1) + 1;
 506
 507     switch(avctx->codec->id) {
 508     case CODEC_ID_MPEG1VIDEO:
 509         s->out_format = FMT_MPEG1;
 510         s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
 511         avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
 512         break;
 513     case CODEC_ID_MPEG2VIDEO:
 514         s->out_format = FMT_MPEG1;
 515         s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
 516         avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
 517         s->rtp_mode= 1;
 518         break;
 519     case CODEC_ID_LJPEG:
 520     case CODEC_ID_MJPEG:
 521         s->out_format = FMT_MJPEG;
 522         s->intra_only = 1; /* force intra only for jpeg */
 523         s->mjpeg_vsample[0] = 2;
 524         s->mjpeg_vsample[1] = 2>>chroma_v_shift;
 525         s->mjpeg_vsample[2] = 2>>chroma_v_shift;
 526         s->mjpeg_hsample[0] = 2;
 527         s->mjpeg_hsample[1] = 2>>chroma_h_shift;
 528         s->mjpeg_hsample[2] = 2>>chroma_h_shift;
 529         if (!(ENABLE_MJPEG_ENCODER || ENABLE_LJPEG_ENCODER)
 530             || ff_mjpeg_encode_init(s) < 0)
 531             return -1;
 532         avctx->delay=0;
 533         s->low_delay=1;
 534         break;
 535     case CODEC_ID_H261:
 536         if (!ENABLE_H261_ENCODER)  return -1;
 537         if (ff_h261_get_picture_format(s->width, s->height) < 0) {
 538             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);
 539             return -1;
 540         }
 541         s->out_format = FMT_H261;
 542         avctx->delay=0;
 543         s->low_delay=1;
 544         break;
 545     case CODEC_ID_H263:
 546         if (h263_get_picture_format(s->width, s->height) == 7) {
 547             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);
 548             return -1;
 549         }
 550         s->out_format = FMT_H263;
 551         s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
 552         avctx->delay=0;
 553         s->low_delay=1;
 554         break;
 555     case CODEC_ID_H263P:
 556         s->out_format = FMT_H263;
 557         s->h263_plus = 1;
 558         /* Fx */
 559         s->umvplus = (avctx->flags & CODEC_FLAG_H263P_UMV) ? 1:0;
 560         s->h263_aic= (avctx->flags & CODEC_FLAG_AC_PRED) ? 1:0;
 561         s->modified_quant= s->h263_aic;
 562         s->alt_inter_vlc= (avctx->flags & CODEC_FLAG_H263P_AIV) ? 1:0;
 563         s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
 564         s->loop_filter= (avctx->flags & CODEC_FLAG_LOOP_FILTER) ? 1:0;
 565         s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
 566         s->h263_slice_structured= (s->flags & CODEC_FLAG_H263P_SLICE_STRUCT) ? 1:0;
 567
 568         /* /Fx */
 569         /* These are just to be sure */
 570         avctx->delay=0;
 571         s->low_delay=1;
 572         break;
 573     case CODEC_ID_FLV1:
 574         s->out_format = FMT_H263;
 575         s->h263_flv = 2; /* format = 1; 11-bit codes */
 576         s->unrestricted_mv = 1;
 577         s->rtp_mode=0; /* don't allow GOB */
 578         avctx->delay=0;
 579         s->low_delay=1;
 580         break;
 581     case CODEC_ID_RV10:
 582         s->out_format = FMT_H263;
 583         avctx->delay=0;
 584         s->low_delay=1;
 585         break;
 586     case CODEC_ID_RV20:
 587         s->out_format = FMT_H263;
 588         avctx->delay=0;
 589         s->low_delay=1;
 590         s->modified_quant=1;
 591         s->h263_aic=1;
 592         s->h263_plus=1;
 593         s->loop_filter=1;
 594         s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
 595         break;
 596     case CODEC_ID_MPEG4:
 597         s->out_format = FMT_H263;
 598         s->h263_pred = 1;
 599         s->unrestricted_mv = 1;
 600         s->low_delay= s->max_b_frames ? 0 : 1;
 601         avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
 602         break;
 603     case CODEC_ID_MSMPEG4V1:
 604         s->out_format = FMT_H263;
 605         s->h263_msmpeg4 = 1;
 606         s->h263_pred = 1;
 607         s->unrestricted_mv = 1;
 608         s->msmpeg4_version= 1;
 609         avctx->delay=0;
 610         s->low_delay=1;
 611         break;
 612     case CODEC_ID_MSMPEG4V2:
 613         s->out_format = FMT_H263;
 614         s->h263_msmpeg4 = 1;
 615         s->h263_pred = 1;
 616         s->unrestricted_mv = 1;
 617         s->msmpeg4_version= 2;
 618         avctx->delay=0;
 619         s->low_delay=1;
 620         break;
 621     case CODEC_ID_MSMPEG4V3:
 622         s->out_format = FMT_H263;
 623         s->h263_msmpeg4 = 1;
 624         s->h263_pred = 1;
 625         s->unrestricted_mv = 1;
 626         s->msmpeg4_version= 3;
 627         s->flipflop_rounding=1;
 628         avctx->delay=0;
 629         s->low_delay=1;
 630         break;
 631     case CODEC_ID_WMV1:
 632         s->out_format = FMT_H263;
 633         s->h263_msmpeg4 = 1;
 634         s->h263_pred = 1;
 635         s->unrestricted_mv = 1;
 636         s->msmpeg4_version= 4;
 637         s->flipflop_rounding=1;
 638         avctx->delay=0;
 639         s->low_delay=1;
 640         break;
 641     case CODEC_ID_WMV2:
 642         s->out_format = FMT_H263;
 643         s->h263_msmpeg4 = 1;
 644         s->h263_pred = 1;
 645         s->unrestricted_mv = 1;
 646         s->msmpeg4_version= 5;
 647         s->flipflop_rounding=1;
 648         avctx->delay=0;
 649         s->low_delay=1;
 650         break;
 651     default:
 652         return -1;
 653     }
 654
 655     avctx->has_b_frames= !s->low_delay;
 656
 657     s->encoding = 1;
 658
 659     /* init */
 660     if (MPV_common_init(s) < 0)
 661         return -1;
 662
 663     if(!s->dct_quantize)
 664         s->dct_quantize = dct_quantize_c;
 665     if(!s->denoise_dct)
 666         s->denoise_dct = denoise_dct_c;
 667     s->fast_dct_quantize = s->dct_quantize;
 668     if(s->flags & CODEC_FLAG_TRELLIS_QUANT)
 669         s->dct_quantize = dct_quantize_trellis_c;
 670
 671     if(s->modified_quant)
 672         s->chroma_qscale_table= ff_h263_chroma_qscale_table;
 673     s->progressive_frame=
 674     s->progressive_sequence= !(avctx->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN));
 675     s->quant_precision=5;
 676
 677     ff_set_cmp(&s->dsp, s->dsp.ildct_cmp, s->avctx->ildct_cmp);
 678     ff_set_cmp(&s->dsp, s->dsp.frame_skip_cmp, s->avctx->frame_skip_cmp);
 679
 680     if (ENABLE_H261_ENCODER && s->out_format == FMT_H261)
 681         ff_h261_encode_init(s);
 682     if (s->out_format == FMT_H263)
 683         h263_encode_init(s);
 684     if (ENABLE_MSMPEG4_ENCODER && s->msmpeg4_version)
 685         ff_msmpeg4_encode_init(s);
 686     if ((ENABLE_MPEG1VIDEO_ENCODER || ENABLE_MPEG2VIDEO_ENCODER)
 687         && s->out_format == FMT_MPEG1)
 688         ff_mpeg1_encode_init(s);
 689
 690     /* init q matrix */
 691     for(i=0;i<64;i++) {
 692         int j= s->dsp.idct_permutation[i];
 693         if(s->codec_id==CODEC_ID_MPEG4 && s->mpeg_quant){
 694             s->intra_matrix[j] = ff_mpeg4_default_intra_matrix[i];
 695             s->inter_matrix[j] = ff_mpeg4_default_non_intra_matrix[i];
 696         }else if(s->out_format == FMT_H263 || s->out_format == FMT_H261){
 697             s->intra_matrix[j] =
 698             s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
 699         }else
 700         { /* mpeg1/2 */
 701             s->intra_matrix[j] = ff_mpeg1_default_intra_matrix[i];
 702             s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
 703         }
 704         if(s->avctx->intra_matrix)
 705             s->intra_matrix[j] = s->avctx->intra_matrix[i];
 706         if(s->avctx->inter_matrix)
 707             s->inter_matrix[j] = s->avctx->inter_matrix[i];
 708     }
 709
 710     /* precompute matrix */
 711     /* for mjpeg, we do include qscale in the matrix */
 712     if (s->out_format != FMT_MJPEG) {
 713         convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
 714                        s->intra_matrix, s->intra_quant_bias, avctx->qmin, 31, 1);
 715         convert_matrix(&s->dsp, s->q_inter_matrix, s->q_inter_matrix16,
 716                        s->inter_matrix, s->inter_quant_bias, avctx->qmin, 31, 0);
 717     }
 718
 719     if(ff_rate_control_init(s) < 0)
 720         return -1;
 721
 722     return 0;
 723 }
 724
 725 int MPV_encode_end(AVCodecContext *avctx)
 726 {
 727     MpegEncContext *s = avctx->priv_data;
 728
 729     ff_rate_control_uninit(s);
 730
 731     MPV_common_end(s);
 732     if ((ENABLE_MJPEG_ENCODER || ENABLE_LJPEG_ENCODER) && s->out_format == FMT_MJPEG)
 733         ff_mjpeg_encode_close(s);
 734
 735     av_freep(&avctx->extradata);
 736
 737     return 0;
 738 }
 739
 740 static int get_sae(uint8_t *src, int ref, int stride){
 741     int x,y;
 742     int acc=0;
 743
 744     for(y=0; y<16; y++){
 745         for(x=0; x<16; x++){
 746             acc+= FFABS(src[x+y*stride] - ref);
 747         }
 748     }
 749
 750     return acc;
 751 }
 752
 753 static int get_intra_count(MpegEncContext *s, uint8_t *src, uint8_t *ref, int stride){
 754     int x, y, w, h;
 755     int acc=0;
 756
 757     w= s->width &~15;
 758     h= s->height&~15;
 759
 760     for(y=0; y<h; y+=16){
 761         for(x=0; x<w; x+=16){
 762             int offset= x + y*stride;
 763             int sad = s->dsp.sad[0](NULL, src + offset, ref + offset, stride, 16);
 764             int mean= (s->dsp.pix_sum(src + offset, stride) + 128)>>8;
 765             int sae = get_sae(src + offset, mean, stride);
 766
 767             acc+= sae + 500 < sad;
 768         }
 769     }
 770     return acc;
 771 }
 772
 773
 774 static int load_input_picture(MpegEncContext *s, AVFrame *pic_arg){
 775     AVFrame *pic=NULL;
 776     int64_t pts;
 777     int i;
 778     const int encoding_delay= s->max_b_frames;
 779     int direct=1;
 780
 781     if(pic_arg){
 782         pts= pic_arg->pts;
 783         pic_arg->display_picture_number= s->input_picture_number++;
 784
 785         if(pts != AV_NOPTS_VALUE){
 786             if(s->user_specified_pts != AV_NOPTS_VALUE){
 787                 int64_t time= pts;
 788                 int64_t last= s->user_specified_pts;
 789
 790                 if(time <= last){
 791                     av_log(s->avctx, AV_LOG_ERROR, "Error, Invalid timestamp=%"PRId64", last=%"PRId64"\n", pts, s->user_specified_pts);
 792                     return -1;
 793                 }
 794             }
 795             s->user_specified_pts= pts;
 796         }else{
 797             if(s->user_specified_pts != AV_NOPTS_VALUE){
 798                 s->user_specified_pts=
 799                 pts= s->user_specified_pts + 1;
 800                 av_log(s->avctx, AV_LOG_INFO, "Warning: AVFrame.pts=? trying to guess (%"PRId64")\n", pts);
 801             }else{
 802                 pts= pic_arg->display_picture_number;
 803             }
 804         }
 805     }
 806
 807   if(pic_arg){
 808     if(encoding_delay && !(s->flags&CODEC_FLAG_INPUT_PRESERVED)) direct=0;
 809     if(pic_arg->linesize[0] != s->linesize) direct=0;
 810     if(pic_arg->linesize[1] != s->uvlinesize) direct=0;
 811     if(pic_arg->linesize[2] != s->uvlinesize) direct=0;
 812
 813 //    av_log(AV_LOG_DEBUG, "%d %d %d %d\n",pic_arg->linesize[0], pic_arg->linesize[1], s->linesize, s->uvlinesize);
 814
 815     if(direct){
 816         i= ff_find_unused_picture(s, 1);
 817
 818         pic= (AVFrame*)&s->picture[i];
 819         pic->reference= 3;
 820
 821         for(i=0; i<4; i++){
 822             pic->data[i]= pic_arg->data[i];
 823             pic->linesize[i]= pic_arg->linesize[i];
 824         }
 825         alloc_picture(s, (Picture*)pic, 1);
 826     }else{
 827         i= ff_find_unused_picture(s, 0);
 828
 829         pic= (AVFrame*)&s->picture[i];
 830         pic->reference= 3;
 831
 832         alloc_picture(s, (Picture*)pic, 0);
 833
 834         if(   pic->data[0] + INPLACE_OFFSET == pic_arg->data[0]
 835            && pic->data[1] + INPLACE_OFFSET == pic_arg->data[1]
 836            && pic->data[2] + INPLACE_OFFSET == pic_arg->data[2]){
 837        // empty
 838         }else{
 839             int h_chroma_shift, v_chroma_shift;
 840             avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
 841
 842             for(i=0; i<3; i++){
 843                 int src_stride= pic_arg->linesize[i];
 844                 int dst_stride= i ? s->uvlinesize : s->linesize;
 845                 int h_shift= i ? h_chroma_shift : 0;
 846                 int v_shift= i ? v_chroma_shift : 0;
 847                 int w= s->width >>h_shift;
 848                 int h= s->height>>v_shift;
 849                 uint8_t *src= pic_arg->data[i];
 850                 uint8_t *dst= pic->data[i];
 851
 852                 if(!s->avctx->rc_buffer_size)
 853                     dst +=INPLACE_OFFSET;
 854
 855                 if(src_stride==dst_stride)
 856                     memcpy(dst, src, src_stride*h);
 857                 else{
 858                     while(h--){
 859                         memcpy(dst, src, w);
 860                         dst += dst_stride;
 861                         src += src_stride;
 862                     }
 863                 }
 864             }
 865         }
 866     }
 867     copy_picture_attributes(s, pic, pic_arg);
 868     pic->pts= pts; //we set this here to avoid modifiying pic_arg
 869   }
 870
 871     /* shift buffer entries */
 872     for(i=1; i<MAX_PICTURE_COUNT /*s->encoding_delay+1*/; i++)
 873         s->input_picture[i-1]= s->input_picture[i];
 874
 875     s->input_picture[encoding_delay]= (Picture*)pic;
 876
 877     return 0;
 878 }
 879
 880 static int skip_check(MpegEncContext *s, Picture *p, Picture *ref){
 881     int x, y, plane;
 882     int score=0;
 883     int64_t score64=0;
 884
 885     for(plane=0; plane<3; plane++){
 886         const int stride= p->linesize[plane];
 887         const int bw= plane ? 1 : 2;
 888         for(y=0; y<s->mb_height*bw; y++){
 889             for(x=0; x<s->mb_width*bw; x++){
 890                 int off= p->type == FF_BUFFER_TYPE_SHARED ? 0: 16;
 891                 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);
 892
 893                 switch(s->avctx->frame_skip_exp){
 894                     case 0: score= FFMAX(score, v); break;
 895                     case 1: score+= FFABS(v);break;
 896                     case 2: score+= v*v;break;
 897                     case 3: score64+= FFABS(v*v*(int64_t)v);break;
 898                     case 4: score64+= v*v*(int64_t)(v*v);break;
 899                 }
 900             }
 901         }
 902     }
 903
 904     if(score) score64= score;
 905
 906     if(score64 < s->avctx->frame_skip_threshold)
 907         return 1;
 908     if(score64 < ((s->avctx->frame_skip_factor * (int64_t)s->lambda)>>8))
 909         return 1;
 910     return 0;
 911 }
 912
 913 static int estimate_best_b_count(MpegEncContext *s){
 914     AVCodec *codec= avcodec_find_encoder(s->avctx->codec_id);
 915     AVCodecContext *c= avcodec_alloc_context();
 916     AVFrame input[FF_MAX_B_FRAMES+2];
 917     const int scale= s->avctx->brd_scale;
 918     int i, j, out_size, p_lambda, b_lambda, lambda2;
 919     int outbuf_size= s->width * s->height; //FIXME
 920     uint8_t *outbuf= av_malloc(outbuf_size);
 921     int64_t best_rd= INT64_MAX;
 922     int best_b_count= -1;
 923
 924     assert(scale>=0 && scale <=3);
 925
 926 //    emms_c();
 927     p_lambda= s->last_lambda_for[P_TYPE]; //s->next_picture_ptr->quality;
 928     b_lambda= s->last_lambda_for[B_TYPE]; //p_lambda *FFABS(s->avctx->b_quant_factor) + s->avctx->b_quant_offset;
 929     if(!b_lambda) b_lambda= p_lambda; //FIXME we should do this somewhere else
 930     lambda2= (b_lambda*b_lambda + (1<<FF_LAMBDA_SHIFT)/2 ) >> FF_LAMBDA_SHIFT;
 931
 932     c->width = s->width >> scale;
 933     c->height= s->height>> scale;
 934     c->flags= CODEC_FLAG_QSCALE | CODEC_FLAG_PSNR | CODEC_FLAG_INPUT_PRESERVED /*| CODEC_FLAG_EMU_EDGE*/;
 935     c->flags|= s->avctx->flags & CODEC_FLAG_QPEL;
 936     c->mb_decision= s->avctx->mb_decision;
 937     c->me_cmp= s->avctx->me_cmp;
 938     c->mb_cmp= s->avctx->mb_cmp;
 939     c->me_sub_cmp= s->avctx->me_sub_cmp;
 940     c->pix_fmt = PIX_FMT_YUV420P;
 941     c->time_base= s->avctx->time_base;
 942     c->max_b_frames= s->max_b_frames;
 943
 944     if (avcodec_open(c, codec) < 0)
 945         return -1;
 946
 947     for(i=0; i<s->max_b_frames+2; i++){
 948         int ysize= c->width*c->height;
 949         int csize= (c->width/2)*(c->height/2);
 950         Picture pre_input, *pre_input_ptr= i ? s->input_picture[i-1] : s->next_picture_ptr;
 951
 952         avcodec_get_frame_defaults(&input[i]);
 953         input[i].data[0]= av_malloc(ysize + 2*csize);
 954         input[i].data[1]= input[i].data[0] + ysize;
 955         input[i].data[2]= input[i].data[1] + csize;
 956         input[i].linesize[0]= c->width;
 957         input[i].linesize[1]=
 958         input[i].linesize[2]= c->width/2;
 959
 960         if(pre_input_ptr && (!i || s->input_picture[i-1])) {
 961             pre_input= *pre_input_ptr;
 962
 963             if(pre_input.type != FF_BUFFER_TYPE_SHARED && i) {
 964                 pre_input.data[0]+=INPLACE_OFFSET;
 965                 pre_input.data[1]+=INPLACE_OFFSET;
 966                 pre_input.data[2]+=INPLACE_OFFSET;
 967             }
 968
 969             s->dsp.shrink[scale](input[i].data[0], input[i].linesize[0], pre_input.data[0], pre_input.linesize[0], c->width, c->height);
 970             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);
 971             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);
 972         }
 973     }
 974
 975     for(j=0; j<s->max_b_frames+1; j++){
 976         int64_t rd=0;
 977
 978         if(!s->input_picture[j])
 979             break;
 980
 981         c->error[0]= c->error[1]= c->error[2]= 0;
 982
 983         input[0].pict_type= I_TYPE;
 984         input[0].quality= 1 * FF_QP2LAMBDA;
 985         out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[0]);
 986 //        rd += (out_size * lambda2) >> FF_LAMBDA_SHIFT;
 987
 988         for(i=0; i<s->max_b_frames+1; i++){
 989             int is_p= i % (j+1) == j || i==s->max_b_frames;
 990
 991             input[i+1].pict_type= is_p ? P_TYPE : B_TYPE;
 992             input[i+1].quality= is_p ? p_lambda : b_lambda;
 993             out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[i+1]);
 994             rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
 995         }
 996
 997         /* get the delayed frames */
 998         while(out_size){
 999             out_size = avcodec_encode_video(c, outbuf, outbuf_size, NULL);
1000             rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
1001         }
1002
1003         rd += c->error[0] + c->error[1] + c->error[2];
1004
1005         if(rd < best_rd){
1006             best_rd= rd;
1007             best_b_count= j;
1008         }
1009     }
1010
1011     av_freep(&outbuf);
1012     avcodec_close(c);
1013     av_freep(&c);
1014
1015     for(i=0; i<s->max_b_frames+2; i++){
1016         av_freep(&input[i].data[0]);
1017     }
1018
1019     return best_b_count;
1020 }
1021
1022 static void select_input_picture(MpegEncContext *s){
1023     int i;
1024
1025     for(i=1; i<MAX_PICTURE_COUNT; i++)
1026         s->reordered_input_picture[i-1]= s->reordered_input_picture[i];
1027     s->reordered_input_picture[MAX_PICTURE_COUNT-1]= NULL;
1028
1029     /* set next picture type & ordering */
1030     if(s->reordered_input_picture[0]==NULL && s->input_picture[0]){
1031         if(/*s->picture_in_gop_number >= s->gop_size ||*/ s->next_picture_ptr==NULL || s->intra_only){
1032             s->reordered_input_picture[0]= s->input_picture[0];
1033             s->reordered_input_picture[0]->pict_type= I_TYPE;
1034             s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1035         }else{
1036             int b_frames;
1037
1038             if(s->avctx->frame_skip_threshold || s->avctx->frame_skip_factor){
1039                 if(s->picture_in_gop_number < s->gop_size && skip_check(s, s->input_picture[0], s->next_picture_ptr)){
1040                 //FIXME check that te gop check above is +-1 correct
1041 //av_log(NULL, AV_LOG_DEBUG, "skip %p %"PRId64"\n", s->input_picture[0]->data[0], s->input_picture[0]->pts);
1042
1043                     if(s->input_picture[0]->type == FF_BUFFER_TYPE_SHARED){
1044                         for(i=0; i<4; i++)
1045                             s->input_picture[0]->data[i]= NULL;
1046                         s->input_picture[0]->type= 0;
1047                     }else{
1048                         assert(   s->input_picture[0]->type==FF_BUFFER_TYPE_USER
1049                                || s->input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1050
1051                         s->avctx->release_buffer(s->avctx, (AVFrame*)s->input_picture[0]);
1052                     }
1053
1054                     emms_c();
1055                     ff_vbv_update(s, 0);
1056
1057                     goto no_output_pic;
1058                 }
1059             }
1060
1061             if(s->flags&CODEC_FLAG_PASS2){
1062                 for(i=0; i<s->max_b_frames+1; i++){
1063                     int pict_num= s->input_picture[0]->display_picture_number + i;
1064
1065                     if(pict_num >= s->rc_context.num_entries)
1066                         break;
1067                     if(!s->input_picture[i]){
1068                         s->rc_context.entry[pict_num-1].new_pict_type = P_TYPE;
1069                         break;
1070                     }
1071
1072                     s->input_picture[i]->pict_type=
1073                         s->rc_context.entry[pict_num].new_pict_type;
1074                 }
1075             }
1076
1077             if(s->avctx->b_frame_strategy==0){
1078                 b_frames= s->max_b_frames;
1079                 while(b_frames && !s->input_picture[b_frames]) b_frames--;
1080             }else if(s->avctx->b_frame_strategy==1){
1081                 for(i=1; i<s->max_b_frames+1; i++){
1082                     if(s->input_picture[i] && s->input_picture[i]->b_frame_score==0){
1083                         s->input_picture[i]->b_frame_score=
1084                             get_intra_count(s, s->input_picture[i  ]->data[0],
1085                                                s->input_picture[i-1]->data[0], s->linesize) + 1;
1086                     }
1087                 }
1088                 for(i=0; i<s->max_b_frames+1; i++){
1089                     if(s->input_picture[i]==NULL || s->input_picture[i]->b_frame_score - 1 > s->mb_num/s->avctx->b_sensitivity) break;
1090                 }
1091
1092                 b_frames= FFMAX(0, i-1);
1093
1094                 /* reset scores */
1095                 for(i=0; i<b_frames+1; i++){
1096                     s->input_picture[i]->b_frame_score=0;
1097                 }
1098             }else if(s->avctx->b_frame_strategy==2){
1099                 b_frames= estimate_best_b_count(s);
1100             }else{
1101                 av_log(s->avctx, AV_LOG_ERROR, "illegal b frame strategy\n");
1102                 b_frames=0;
1103             }
1104
1105             emms_c();
1106 //static int b_count=0;
1107 //b_count+= b_frames;
1108 //av_log(s->avctx, AV_LOG_DEBUG, "b_frames: %d\n", b_count);
1109
1110             for(i= b_frames - 1; i>=0; i--){
1111                 int type= s->input_picture[i]->pict_type;
1112                 if(type && type != B_TYPE)
1113                     b_frames= i;
1114             }
1115             if(s->input_picture[b_frames]->pict_type == B_TYPE && b_frames == s->max_b_frames){
1116                 av_log(s->avctx, AV_LOG_ERROR, "warning, too many b frames in a row\n");
1117             }
1118
1119             if(s->picture_in_gop_number + b_frames >= s->gop_size){
1120               if((s->flags2 & CODEC_FLAG2_STRICT_GOP) && s->gop_size > s->picture_in_gop_number){
1121                     b_frames= s->gop_size - s->picture_in_gop_number - 1;
1122               }else{
1123                 if(s->flags & CODEC_FLAG_CLOSED_GOP)
1124                     b_frames=0;
1125                 s->input_picture[b_frames]->pict_type= I_TYPE;
1126               }
1127             }
1128
1129             if(   (s->flags & CODEC_FLAG_CLOSED_GOP)
1130                && b_frames
1131                && s->input_picture[b_frames]->pict_type== I_TYPE)
1132                 b_frames--;
1133
1134             s->reordered_input_picture[0]= s->input_picture[b_frames];
1135             if(s->reordered_input_picture[0]->pict_type != I_TYPE)
1136                 s->reordered_input_picture[0]->pict_type= P_TYPE;
1137             s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1138             for(i=0; i<b_frames; i++){
1139                 s->reordered_input_picture[i+1]= s->input_picture[i];
1140                 s->reordered_input_picture[i+1]->pict_type= B_TYPE;
1141                 s->reordered_input_picture[i+1]->coded_picture_number= s->coded_picture_number++;
1142             }
1143         }
1144     }
1145 no_output_pic:
1146     if(s->reordered_input_picture[0]){
1147         s->reordered_input_picture[0]->reference= s->reordered_input_picture[0]->pict_type!=B_TYPE ? 3 : 0;
1148
1149         copy_picture(&s->new_picture, s->reordered_input_picture[0]);
1150
1151         if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_SHARED || s->avctx->rc_buffer_size){
1152             // input is a shared pix, so we can't modifiy it -> alloc a new one & ensure that the shared one is reuseable
1153
1154             int i= ff_find_unused_picture(s, 0);
1155             Picture *pic= &s->picture[i];
1156
1157             pic->reference              = s->reordered_input_picture[0]->reference;
1158             alloc_picture(s, pic, 0);
1159
1160             /* mark us unused / free shared pic */
1161             if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_INTERNAL)
1162                 s->avctx->release_buffer(s->avctx, (AVFrame*)s->reordered_input_picture[0]);
1163             for(i=0; i<4; i++)
1164                 s->reordered_input_picture[0]->data[i]= NULL;
1165             s->reordered_input_picture[0]->type= 0;
1166
1167             copy_picture_attributes(s, (AVFrame*)pic, (AVFrame*)s->reordered_input_picture[0]);
1168
1169             s->current_picture_ptr= pic;
1170         }else{
1171             // input is not a shared pix -> reuse buffer for current_pix
1172
1173             assert(   s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_USER
1174                    || s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1175
1176             s->current_picture_ptr= s->reordered_input_picture[0];
1177             for(i=0; i<4; i++){
1178                 s->new_picture.data[i]+= INPLACE_OFFSET;
1179             }
1180         }
1181         copy_picture(&s->current_picture, s->current_picture_ptr);
1182
1183         s->picture_number= s->new_picture.display_picture_number;
1184 //printf("dpn:%d\n", s->picture_number);
1185     }else{
1186        memset(&s->new_picture, 0, sizeof(Picture));
1187     }
1188 }
1189
1190 int MPV_encode_picture(AVCodecContext *avctx,
1191                        unsigned char *buf, int buf_size, void *data)
1192 {
1193     MpegEncContext *s = avctx->priv_data;
1194     AVFrame *pic_arg = data;
1195     int i, stuffing_count;
1196
1197     for(i=0; i<avctx->thread_count; i++){
1198         int start_y= s->thread_context[i]->start_mb_y;
1199         int   end_y= s->thread_context[i]->  end_mb_y;
1200         int h= s->mb_height;
1201         uint8_t *start= buf + (size_t)(((int64_t) buf_size)*start_y/h);
1202         uint8_t *end  = buf + (size_t)(((int64_t) buf_size)*  end_y/h);
1203
1204         init_put_bits(&s->thread_context[i]->pb, start, end - start);
1205     }
1206
1207     s->picture_in_gop_number++;
1208
1209     if(load_input_picture(s, pic_arg) < 0)
1210         return -1;
1211
1212     select_input_picture(s);
1213
1214     /* output? */
1215     if(s->new_picture.data[0]){
1216         s->pict_type= s->new_picture.pict_type;
1217 //emms_c();
1218 //printf("qs:%f %f %d\n", s->new_picture.quality, s->current_picture.quality, s->qscale);
1219         MPV_frame_start(s, avctx);
1220 vbv_retry:
1221         if (encode_picture(s, s->picture_number) < 0)
1222             return -1;
1223
1224         avctx->real_pict_num  = s->picture_number;
1225         avctx->header_bits = s->header_bits;
1226         avctx->mv_bits     = s->mv_bits;
1227         avctx->misc_bits   = s->misc_bits;
1228         avctx->i_tex_bits  = s->i_tex_bits;
1229         avctx->p_tex_bits  = s->p_tex_bits;
1230         avctx->i_count     = s->i_count;
1231         avctx->p_count     = s->mb_num - s->i_count - s->skip_count; //FIXME f/b_count in avctx
1232         avctx->skip_count  = s->skip_count;
1233
1234         MPV_frame_end(s);
1235
1236         if (ENABLE_MJPEG_ENCODER && s->out_format == FMT_MJPEG)
1237             ff_mjpeg_encode_picture_trailer(s);
1238
1239         if(avctx->rc_buffer_size){
1240             RateControlContext *rcc= &s->rc_context;
1241             int max_size= rcc->buffer_index/3;
1242
1243             if(put_bits_count(&s->pb) > max_size && s->lambda < s->avctx->lmax){
1244                 s->next_lambda= FFMAX(s->lambda+1, s->lambda*(s->qscale+1) / s->qscale);
1245                 if(s->adaptive_quant){
1246                     int i;
1247                     for(i=0; i<s->mb_height*s->mb_stride; i++)
1248                         s->lambda_table[i]= FFMAX(s->lambda_table[i]+1, s->lambda_table[i]*(s->qscale+1) / s->qscale);
1249                 }
1250                 s->mb_skipped = 0;        //done in MPV_frame_start()
1251                 if(s->pict_type==P_TYPE){ //done in encode_picture() so we must undo it
1252                     if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
1253                         s->no_rounding ^= 1;
1254                 }
1255                 if(s->pict_type!=B_TYPE){
1256                     s->time_base= s->last_time_base;
1257                     s->last_non_b_time= s->time - s->pp_time;
1258                 }
1259 //                av_log(NULL, AV_LOG_ERROR, "R:%d ", s->next_lambda);
1260                 for(i=0; i<avctx->thread_count; i++){
1261                     PutBitContext *pb= &s->thread_context[i]->pb;
1262                     init_put_bits(pb, pb->buf, pb->buf_end - pb->buf);
1263                 }
1264                 goto vbv_retry;
1265             }
1266
1267             assert(s->avctx->rc_max_rate);
1268         }
1269
1270         if(s->flags&CODEC_FLAG_PASS1)
1271             ff_write_pass1_stats(s);
1272
1273         for(i=0; i<4; i++){
1274             s->current_picture_ptr->error[i]= s->current_picture.error[i];
1275             avctx->error[i] += s->current_picture_ptr->error[i];
1276         }
1277
1278         if(s->flags&CODEC_FLAG_PASS1)
1279             assert(avctx->header_bits + avctx->mv_bits + avctx->misc_bits + avctx->i_tex_bits + avctx->p_tex_bits == put_bits_count(&s->pb));
1280         flush_put_bits(&s->pb);
1281         s->frame_bits  = put_bits_count(&s->pb);
1282
1283         stuffing_count= ff_vbv_update(s, s->frame_bits);
1284         if(stuffing_count){
1285             if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < stuffing_count + 50){
1286                 av_log(s->avctx, AV_LOG_ERROR, "stuffing too large\n");
1287                 return -1;
1288             }
1289
1290             switch(s->codec_id){
1291             case CODEC_ID_MPEG1VIDEO:
1292             case CODEC_ID_MPEG2VIDEO:
1293                 while(stuffing_count--){
1294                     put_bits(&s->pb, 8, 0);
1295                 }
1296             break;
1297             case CODEC_ID_MPEG4:
1298                 put_bits(&s->pb, 16, 0);
1299                 put_bits(&s->pb, 16, 0x1C3);
1300                 stuffing_count -= 4;
1301                 while(stuffing_count--){
1302                     put_bits(&s->pb, 8, 0xFF);
1303                 }
1304             break;
1305             default:
1306                 av_log(s->avctx, AV_LOG_ERROR, "vbv buffer overflow\n");
1307             }
1308             flush_put_bits(&s->pb);
1309             s->frame_bits  = put_bits_count(&s->pb);
1310         }
1311
1312         /* update mpeg1/2 vbv_delay for CBR */
1313         if(s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate && s->out_format == FMT_MPEG1
1314            && 90000LL * (avctx->rc_buffer_size-1) <= s->avctx->rc_max_rate*0xFFFFLL){
1315             int vbv_delay;
1316
1317             assert(s->repeat_first_field==0);
1318
1319             vbv_delay= lrintf(90000 * s->rc_context.buffer_index / s->avctx->rc_max_rate);
1320             assert(vbv_delay < 0xFFFF);
1321
1322             s->vbv_delay_ptr[0] &= 0xF8;
1323             s->vbv_delay_ptr[0] |= vbv_delay>>13;
1324             s->vbv_delay_ptr[1]  = vbv_delay>>5;
1325             s->vbv_delay_ptr[2] &= 0x07;
1326             s->vbv_delay_ptr[2] |= vbv_delay<<3;
1327         }
1328         s->total_bits += s->frame_bits;
1329         avctx->frame_bits  = s->frame_bits;
1330     }else{
1331         assert((pbBufPtr(&s->pb) == s->pb.buf));
1332         s->frame_bits=0;
1333     }
1334     assert((s->frame_bits&7)==0);
1335
1336     return s->frame_bits/8;
1337 }
1338
1339 static inline void dct_single_coeff_elimination(MpegEncContext *s, int n, int threshold)
1340 {
1341     static const char tab[64]=
1342         {3,2,2,1,1,1,1,1,
1343          1,1,1,1,1,1,1,1,
1344          1,1,1,1,1,1,1,1,
1345          0,0,0,0,0,0,0,0,
1346          0,0,0,0,0,0,0,0,
1347          0,0,0,0,0,0,0,0,
1348          0,0,0,0,0,0,0,0,
1349          0,0,0,0,0,0,0,0};
1350     int score=0;
1351     int run=0;
1352     int i;
1353     DCTELEM *block= s->block[n];
1354     const int last_index= s->block_last_index[n];
1355     int skip_dc;
1356
1357     if(threshold<0){
1358         skip_dc=0;
1359         threshold= -threshold;
1360     }else
1361         skip_dc=1;
1362
1363     /* are all which we could set to zero are allready zero? */
1364     if(last_index<=skip_dc - 1) return;
1365
1366     for(i=0; i<=last_index; i++){
1367         const int j = s->intra_scantable.permutated[i];
1368         const int level = FFABS(block[j]);
1369         if(level==1){
1370             if(skip_dc && i==0) continue;
1371             score+= tab[run];
1372             run=0;
1373         }else if(level>1){
1374             return;
1375         }else{
1376             run++;
1377         }
1378     }
1379     if(score >= threshold) return;
1380     for(i=skip_dc; i<=last_index; i++){
1381         const int j = s->intra_scantable.permutated[i];
1382         block[j]=0;
1383     }
1384     if(block[0]) s->block_last_index[n]= 0;
1385     else         s->block_last_index[n]= -1;
1386 }
1387
1388 static inline void clip_coeffs(MpegEncContext *s, DCTELEM *block, int last_index)
1389 {
1390     int i;
1391     const int maxlevel= s->max_qcoeff;
1392     const int minlevel= s->min_qcoeff;
1393     int overflow=0;
1394
1395     if(s->mb_intra){
1396         i=1; //skip clipping of intra dc
1397     }else
1398         i=0;
1399
1400     for(;i<=last_index; i++){
1401         const int j= s->intra_scantable.permutated[i];
1402         int level = block[j];
1403
1404         if     (level>maxlevel){
1405             level=maxlevel;
1406             overflow++;
1407         }else if(level<minlevel){
1408             level=minlevel;
1409             overflow++;
1410         }
1411
1412         block[j]= level;
1413     }
1414
1415     if(overflow && s->avctx->mb_decision == FF_MB_DECISION_SIMPLE)
1416         av_log(s->avctx, AV_LOG_INFO, "warning, clipping %d dct coefficients to %d..%d\n", overflow, minlevel, maxlevel);
1417 }
1418
1419 static void get_vissual_weight(int16_t *weight, uint8_t *ptr, int stride){
1420     int x, y;
1421 //FIXME optimize
1422     for(y=0; y<8; y++){
1423         for(x=0; x<8; x++){
1424             int x2, y2;
1425             int sum=0;
1426             int sqr=0;
1427             int count=0;
1428
1429             for(y2= FFMAX(y-1, 0); y2 < FFMIN(8, y+2); y2++){
1430                 for(x2= FFMAX(x-1, 0); x2 < FFMIN(8, x+2); x2++){
1431                     int v= ptr[x2 + y2*stride];
1432                     sum += v;
1433                     sqr += v*v;
1434                     count++;
1435                 }
1436             }
1437             weight[x + 8*y]= (36*ff_sqrt(count*sqr - sum*sum)) / count;
1438         }
1439     }
1440 }
1441
1442 static av_always_inline void encode_mb_internal(MpegEncContext *s, int motion_x, int motion_y, int mb_block_height, int mb_block_count)
1443 {
1444     int16_t weight[8][64];
1445     DCTELEM orig[8][64];
1446     const int mb_x= s->mb_x;
1447     const int mb_y= s->mb_y;
1448     int i;
1449     int skip_dct[8];
1450     int dct_offset   = s->linesize*8; //default for progressive frames
1451     uint8_t *ptr_y, *ptr_cb, *ptr_cr;
1452     int wrap_y, wrap_c;
1453
1454     for(i=0; i<mb_block_count; i++) skip_dct[i]=s->skipdct;
1455
1456     if(s->adaptive_quant){
1457         const int last_qp= s->qscale;
1458         const int mb_xy= mb_x + mb_y*s->mb_stride;
1459
1460         s->lambda= s->lambda_table[mb_xy];
1461         update_qscale(s);
1462
1463         if(!(s->flags&CODEC_FLAG_QP_RD)){
1464             s->qscale= s->current_picture_ptr->qscale_table[mb_xy];
1465             s->dquant= s->qscale - last_qp;
1466
1467             if(s->out_format==FMT_H263){
1468                 s->dquant= av_clip(s->dquant, -2, 2);
1469
1470                 if(s->codec_id==CODEC_ID_MPEG4){
1471                     if(!s->mb_intra){
1472                         if(s->pict_type == B_TYPE){
1473                             if(s->dquant&1 || s->mv_dir&MV_DIRECT)
1474                                 s->dquant= 0;
1475                         }
1476                         if(s->mv_type==MV_TYPE_8X8)
1477                             s->dquant=0;
1478                     }
1479                 }
1480             }
1481         }
1482         ff_set_qscale(s, last_qp + s->dquant);
1483     }else if(s->flags&CODEC_FLAG_QP_RD)
1484         ff_set_qscale(s, s->qscale + s->dquant);
1485
1486     wrap_y = s->linesize;
1487     wrap_c = s->uvlinesize;
1488     ptr_y = s->new_picture.data[0] + (mb_y * 16 * wrap_y) + mb_x * 16;
1489     ptr_cb = s->new_picture.data[1] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1490     ptr_cr = s->new_picture.data[2] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1491
1492     if(mb_x*16+16 > s->width || mb_y*16+16 > s->height){
1493         uint8_t *ebuf= s->edge_emu_buffer + 32;
1494         ff_emulated_edge_mc(ebuf            , ptr_y , wrap_y,16,16,mb_x*16,mb_y*16, s->width   , s->height);
1495         ptr_y= ebuf;
1496         ff_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);
1497         ptr_cb= ebuf+18*wrap_y;
1498         ff_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);
1499         ptr_cr= ebuf+18*wrap_y+8;
1500     }
1501
1502     if (s->mb_intra) {
1503         if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1504             int progressive_score, interlaced_score;
1505
1506             s->interlaced_dct=0;
1507             progressive_score= s->dsp.ildct_cmp[4](s, ptr_y           , NULL, wrap_y, 8)
1508                               +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y*8, NULL, wrap_y, 8) - 400;
1509
1510             if(progressive_score > 0){
1511                 interlaced_score = s->dsp.ildct_cmp[4](s, ptr_y           , NULL, wrap_y*2, 8)
1512                                   +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y  , NULL, wrap_y*2, 8);
1513                 if(progressive_score > interlaced_score){
1514                     s->interlaced_dct=1;
1515
1516                     dct_offset= wrap_y;
1517                     wrap_y<<=1;
1518                     if (s->chroma_format == CHROMA_422)
1519                         wrap_c<<=1;
1520                 }
1521             }
1522         }
1523
1524         s->dsp.get_pixels(s->block[0], ptr_y                 , wrap_y);
1525         s->dsp.get_pixels(s->block[1], ptr_y              + 8, wrap_y);
1526         s->dsp.get_pixels(s->block[2], ptr_y + dct_offset    , wrap_y);
1527         s->dsp.get_pixels(s->block[3], ptr_y + dct_offset + 8, wrap_y);
1528
1529         if(s->flags&CODEC_FLAG_GRAY){
1530             skip_dct[4]= 1;
1531             skip_dct[5]= 1;
1532         }else{
1533             s->dsp.get_pixels(s->block[4], ptr_cb, wrap_c);
1534             s->dsp.get_pixels(s->block[5], ptr_cr, wrap_c);
1535             if(!s->chroma_y_shift){ /* 422 */
1536                 s->dsp.get_pixels(s->block[6], ptr_cb + (dct_offset>>1), wrap_c);
1537                 s->dsp.get_pixels(s->block[7], ptr_cr + (dct_offset>>1), wrap_c);
1538             }
1539         }
1540     }else{
1541         op_pixels_func (*op_pix)[4];
1542         qpel_mc_func (*op_qpix)[16];
1543         uint8_t *dest_y, *dest_cb, *dest_cr;
1544
1545         dest_y  = s->dest[0];
1546         dest_cb = s->dest[1];
1547         dest_cr = s->dest[2];
1548
1549         if ((!s->no_rounding) || s->pict_type==B_TYPE){
1550             op_pix = s->dsp.put_pixels_tab;
1551             op_qpix= s->dsp.put_qpel_pixels_tab;
1552         }else{
1553             op_pix = s->dsp.put_no_rnd_pixels_tab;
1554             op_qpix= s->dsp.put_no_rnd_qpel_pixels_tab;
1555         }
1556
1557         if (s->mv_dir & MV_DIR_FORWARD) {
1558             MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.data, op_pix, op_qpix);
1559             op_pix = s->dsp.avg_pixels_tab;
1560             op_qpix= s->dsp.avg_qpel_pixels_tab;
1561         }
1562         if (s->mv_dir & MV_DIR_BACKWARD) {
1563             MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.data, op_pix, op_qpix);
1564         }
1565
1566         if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1567             int progressive_score, interlaced_score;
1568
1569             s->interlaced_dct=0;
1570             progressive_score= s->dsp.ildct_cmp[0](s, dest_y           , ptr_y           , wrap_y, 8)
1571                               +s->dsp.ildct_cmp[0](s, dest_y + wrap_y*8, ptr_y + wrap_y*8, wrap_y, 8) - 400;
1572
1573             if(s->avctx->ildct_cmp == FF_CMP_VSSE) progressive_score -= 400;
1574
1575             if(progressive_score>0){
1576                 interlaced_score = s->dsp.ildct_cmp[0](s, dest_y           , ptr_y           , wrap_y*2, 8)
1577                                   +s->dsp.ildct_cmp[0](s, dest_y + wrap_y  , ptr_y + wrap_y  , wrap_y*2, 8);
1578
1579                 if(progressive_score > interlaced_score){
1580                     s->interlaced_dct=1;
1581
1582                     dct_offset= wrap_y;
1583                     wrap_y<<=1;
1584                     if (s->chroma_format == CHROMA_422)
1585                         wrap_c<<=1;
1586                 }
1587             }
1588         }
1589
1590         s->dsp.diff_pixels(s->block[0], ptr_y                 , dest_y                 , wrap_y);
1591         s->dsp.diff_pixels(s->block[1], ptr_y              + 8, dest_y              + 8, wrap_y);
1592         s->dsp.diff_pixels(s->block[2], ptr_y + dct_offset    , dest_y + dct_offset    , wrap_y);
1593         s->dsp.diff_pixels(s->block[3], ptr_y + dct_offset + 8, dest_y + dct_offset + 8, wrap_y);
1594
1595         if(s->flags&CODEC_FLAG_GRAY){
1596             skip_dct[4]= 1;
1597             skip_dct[5]= 1;
1598         }else{
1599             s->dsp.diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c);
1600             s->dsp.diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c);
1601             if(!s->chroma_y_shift){ /* 422 */
1602                 s->dsp.diff_pixels(s->block[6], ptr_cb + (dct_offset>>1), dest_cb + (dct_offset>>1), wrap_c);
1603                 s->dsp.diff_pixels(s->block[7], ptr_cr + (dct_offset>>1), dest_cr + (dct_offset>>1), wrap_c);
1604             }
1605         }
1606         /* pre quantization */
1607         if(s->current_picture.mc_mb_var[s->mb_stride*mb_y+ mb_x]<2*s->qscale*s->qscale){
1608             //FIXME optimize
1609             if(s->dsp.sad[1](NULL, ptr_y               , dest_y               , wrap_y, 8) < 20*s->qscale) skip_dct[0]= 1;
1610             if(s->dsp.sad[1](NULL, ptr_y            + 8, dest_y            + 8, wrap_y, 8) < 20*s->qscale) skip_dct[1]= 1;
1611             if(s->dsp.sad[1](NULL, ptr_y +dct_offset   , dest_y +dct_offset   , wrap_y, 8) < 20*s->qscale) skip_dct[2]= 1;
1612             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;
1613             if(s->dsp.sad[1](NULL, ptr_cb              , dest_cb              , wrap_c, 8) < 20*s->qscale) skip_dct[4]= 1;
1614             if(s->dsp.sad[1](NULL, ptr_cr              , dest_cr              , wrap_c, 8) < 20*s->qscale) skip_dct[5]= 1;
1615             if(!s->chroma_y_shift){ /* 422 */
1616                 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;
1617                 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;
1618             }
1619         }
1620     }
1621
1622     if(s->avctx->quantizer_noise_shaping){
1623         if(!skip_dct[0]) get_vissual_weight(weight[0], ptr_y                 , wrap_y);
1624         if(!skip_dct[1]) get_vissual_weight(weight[1], ptr_y              + 8, wrap_y);
1625         if(!skip_dct[2]) get_vissual_weight(weight[2], ptr_y + dct_offset    , wrap_y);
1626         if(!skip_dct[3]) get_vissual_weight(weight[3], ptr_y + dct_offset + 8, wrap_y);
1627         if(!skip_dct[4]) get_vissual_weight(weight[4], ptr_cb                , wrap_c);
1628         if(!skip_dct[5]) get_vissual_weight(weight[5], ptr_cr                , wrap_c);
1629         if(!s->chroma_y_shift){ /* 422 */
1630             if(!skip_dct[6]) get_vissual_weight(weight[6], ptr_cb + (dct_offset>>1), wrap_c);
1631             if(!skip_dct[7]) get_vissual_weight(weight[7], ptr_cr + (dct_offset>>1), wrap_c);
1632         }
1633         memcpy(orig[0], s->block[0], sizeof(DCTELEM)*64*mb_block_count);
1634     }
1635
1636     /* DCT & quantize */
1637     assert(s->out_format!=FMT_MJPEG || s->qscale==8);
1638     {
1639         for(i=0;i<mb_block_count;i++) {
1640             if(!skip_dct[i]){
1641                 int overflow;
1642                 s->block_last_index[i] = s->dct_quantize(s, s->block[i], i, s->qscale, &overflow);
1643             // FIXME we could decide to change to quantizer instead of clipping
1644             // JS: I don't think that would be a good idea it could lower quality instead
1645             //     of improve it. Just INTRADC clipping deserves changes in quantizer
1646                 if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
1647             }else
1648                 s->block_last_index[i]= -1;
1649         }
1650         if(s->avctx->quantizer_noise_shaping){
1651             for(i=0;i<mb_block_count;i++) {
1652                 if(!skip_dct[i]){
1653                     s->block_last_index[i] = dct_quantize_refine(s, s->block[i], weight[i], orig[i], i, s->qscale);
1654                 }
1655             }
1656         }
1657
1658         if(s->luma_elim_threshold && !s->mb_intra)
1659             for(i=0; i<4; i++)
1660                 dct_single_coeff_elimination(s, i, s->luma_elim_threshold);
1661         if(s->chroma_elim_threshold && !s->mb_intra)
1662             for(i=4; i<mb_block_count; i++)
1663                 dct_single_coeff_elimination(s, i, s->chroma_elim_threshold);
1664
1665         if(s->flags & CODEC_FLAG_CBP_RD){
1666             for(i=0;i<mb_block_count;i++) {
1667                 if(s->block_last_index[i] == -1)
1668                     s->coded_score[i]= INT_MAX/256;
1669             }
1670         }
1671     }
1672
1673     if((s->flags&CODEC_FLAG_GRAY) && s->mb_intra){
1674         s->block_last_index[4]=
1675         s->block_last_index[5]= 0;
1676         s->block[4][0]=
1677         s->block[5][0]= (1024 + s->c_dc_scale/2)/ s->c_dc_scale;
1678     }
1679
1680     //non c quantize code returns incorrect block_last_index FIXME
1681     if(s->alternate_scan && s->dct_quantize != dct_quantize_c){
1682         for(i=0; i<mb_block_count; i++){
1683             int j;
1684             if(s->block_last_index[i]>0){
1685                 for(j=63; j>0; j--){
1686                     if(s->block[i][ s->intra_scantable.permutated[j] ]) break;
1687                 }
1688                 s->block_last_index[i]= j;
1689             }
1690         }
1691     }
1692
1693     /* huffman encode */
1694     switch(s->codec_id){ //FIXME funct ptr could be slightly faster
1695     case CODEC_ID_MPEG1VIDEO:
1696     case CODEC_ID_MPEG2VIDEO:
1697         if (ENABLE_MPEG1VIDEO_ENCODER || ENABLE_MPEG2VIDEO_ENCODER)
1698             mpeg1_encode_mb(s, s->block, motion_x, motion_y);
1699         break;
1700     case CODEC_ID_MPEG4:
1701         mpeg4_encode_mb(s, s->block, motion_x, motion_y); break;
1702     case CODEC_ID_MSMPEG4V2:
1703     case CODEC_ID_MSMPEG4V3:
1704     case CODEC_ID_WMV1:
1705         if (ENABLE_MSMPEG4_ENCODER)
1706             msmpeg4_encode_mb(s, s->block, motion_x, motion_y);
1707         break;
1708     case CODEC_ID_WMV2:
1709         if (ENABLE_WMV2_ENCODER)
1710             ff_wmv2_encode_mb(s, s->block, motion_x, motion_y);
1711         break;
1712     case CODEC_ID_H261:
1713         if (ENABLE_H261_ENCODER)
1714             ff_h261_encode_mb(s, s->block, motion_x, motion_y);
1715         break;
1716     case CODEC_ID_H263:
1717     case CODEC_ID_H263P:
1718     case CODEC_ID_FLV1:
1719     case CODEC_ID_RV10:
1720     case CODEC_ID_RV20:
1721         h263_encode_mb(s, s->block, motion_x, motion_y); break;
1722     case CODEC_ID_MJPEG:
1723         if (ENABLE_MJPEG_ENCODER)
1724             ff_mjpeg_encode_mb(s, s->block);
1725         break;
1726     default:
1727         assert(0);
1728     }
1729 }
1730
1731 static av_always_inline void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
1732 {
1733     if (s->chroma_format == CHROMA_420) encode_mb_internal(s, motion_x, motion_y,  8, 6);
1734     else                                encode_mb_internal(s, motion_x, motion_y, 16, 8);
1735 }
1736
1737 static inline void copy_context_before_encode(MpegEncContext *d, MpegEncContext *s, int type){
1738     int i;
1739
1740     memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1741
1742     /* mpeg1 */
1743     d->mb_skip_run= s->mb_skip_run;
1744     for(i=0; i<3; i++)
1745         d->last_dc[i]= s->last_dc[i];
1746
1747     /* statistics */
1748     d->mv_bits= s->mv_bits;
1749     d->i_tex_bits= s->i_tex_bits;
1750     d->p_tex_bits= s->p_tex_bits;
1751     d->i_count= s->i_count;
1752     d->f_count= s->f_count;
1753     d->b_count= s->b_count;
1754     d->skip_count= s->skip_count;
1755     d->misc_bits= s->misc_bits;
1756     d->last_bits= 0;
1757
1758     d->mb_skipped= 0;
1759     d->qscale= s->qscale;
1760     d->dquant= s->dquant;
1761 }
1762
1763 static inline void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int type){
1764     int i;
1765
1766     memcpy(d->mv, s->mv, 2*4*2*sizeof(int));
1767     memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1768
1769     /* mpeg1 */
1770     d->mb_skip_run= s->mb_skip_run;
1771     for(i=0; i<3; i++)
1772         d->last_dc[i]= s->last_dc[i];
1773
1774     /* statistics */
1775     d->mv_bits= s->mv_bits;
1776     d->i_tex_bits= s->i_tex_bits;
1777     d->p_tex_bits= s->p_tex_bits;
1778     d->i_count= s->i_count;
1779     d->f_count= s->f_count;
1780     d->b_count= s->b_count;
1781     d->skip_count= s->skip_count;
1782     d->misc_bits= s->misc_bits;
1783
1784     d->mb_intra= s->mb_intra;
1785     d->mb_skipped= s->mb_skipped;
1786     d->mv_type= s->mv_type;
1787     d->mv_dir= s->mv_dir;
1788     d->pb= s->pb;
1789     if(s->data_partitioning){
1790         d->pb2= s->pb2;
1791         d->tex_pb= s->tex_pb;
1792     }
1793     d->block= s->block;
1794     for(i=0; i<8; i++)
1795         d->block_last_index[i]= s->block_last_index[i];
1796     d->interlaced_dct= s->interlaced_dct;
1797     d->qscale= s->qscale;
1798 }
1799
1800 static inline void encode_mb_hq(MpegEncContext *s, MpegEncContext *backup, MpegEncContext *best, int type,
1801                            PutBitContext pb[2], PutBitContext pb2[2], PutBitContext tex_pb[2],
1802                            int *dmin, int *next_block, int motion_x, int motion_y)
1803 {
1804     int score;
1805     uint8_t *dest_backup[3];
1806
1807     copy_context_before_encode(s, backup, type);
1808
1809     s->block= s->blocks[*next_block];
1810     s->pb= pb[*next_block];
1811     if(s->data_partitioning){
1812         s->pb2   = pb2   [*next_block];
1813         s->tex_pb= tex_pb[*next_block];
1814     }
1815
1816     if(*next_block){
1817         memcpy(dest_backup, s->dest, sizeof(s->dest));
1818         s->dest[0] = s->rd_scratchpad;
1819         s->dest[1] = s->rd_scratchpad + 16*s->linesize;
1820         s->dest[2] = s->rd_scratchpad + 16*s->linesize + 8;
1821         assert(s->linesize >= 32); //FIXME
1822     }
1823
1824     encode_mb(s, motion_x, motion_y);
1825
1826     score= put_bits_count(&s->pb);
1827     if(s->data_partitioning){
1828         score+= put_bits_count(&s->pb2);
1829         score+= put_bits_count(&s->tex_pb);
1830     }
1831
1832     if(s->avctx->mb_decision == FF_MB_DECISION_RD){
1833         MPV_decode_mb(s, s->block);
1834
1835         score *= s->lambda2;
1836         score += sse_mb(s) << FF_LAMBDA_SHIFT;
1837     }
1838
1839     if(*next_block){
1840         memcpy(s->dest, dest_backup, sizeof(s->dest));
1841     }
1842
1843     if(score<*dmin){
1844         *dmin= score;
1845         *next_block^=1;
1846
1847         copy_context_after_encode(best, s, type);
1848     }
1849 }
1850
1851 static int sse(MpegEncContext *s, uint8_t *src1, uint8_t *src2, int w, int h, int stride){
1852     uint32_t *sq = ff_squareTbl + 256;
1853     int acc=0;
1854     int x,y;
1855
1856     if(w==16 && h==16)
1857         return s->dsp.sse[0](NULL, src1, src2, stride, 16);
1858     else if(w==8 && h==8)
1859         return s->dsp.sse[1](NULL, src1, src2, stride, 8);
1860
1861     for(y=0; y<h; y++){
1862         for(x=0; x<w; x++){
1863             acc+= sq[src1[x + y*stride] - src2[x + y*stride]];
1864         }
1865     }
1866
1867     assert(acc>=0);
1868
1869     return acc;
1870 }
1871
1872 static int sse_mb(MpegEncContext *s){
1873     int w= 16;
1874     int h= 16;
1875
1876     if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
1877     if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
1878
1879     if(w==16 && h==16)
1880       if(s->avctx->mb_cmp == FF_CMP_NSSE){
1881         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)
1882                +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)
1883                +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);
1884       }else{
1885         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)
1886                +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)
1887                +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);
1888       }
1889     else
1890         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)
1891                +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)
1892                +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);
1893 }
1894
1895 static int pre_estimate_motion_thread(AVCodecContext *c, void *arg){
1896     MpegEncContext *s= arg;
1897
1898
1899     s->me.pre_pass=1;
1900     s->me.dia_size= s->avctx->pre_dia_size;
1901     s->first_slice_line=1;
1902     for(s->mb_y= s->end_mb_y-1; s->mb_y >= s->start_mb_y; s->mb_y--) {
1903         for(s->mb_x=s->mb_width-1; s->mb_x >=0 ;s->mb_x--) {
1904             ff_pre_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1905         }
1906         s->first_slice_line=0;
1907     }
1908
1909     s->me.pre_pass=0;
1910
1911     return 0;
1912 }
1913
1914 static int estimate_motion_thread(AVCodecContext *c, void *arg){
1915     MpegEncContext *s= arg;
1916
1917     ff_check_alignment();
1918
1919     s->me.dia_size= s->avctx->dia_size;
1920     s->first_slice_line=1;
1921     for(s->mb_y= s->start_mb_y; s->mb_y < s->end_mb_y; s->mb_y++) {
1922         s->mb_x=0; //for block init below
1923         ff_init_block_index(s);
1924         for(s->mb_x=0; s->mb_x < s->mb_width; s->mb_x++) {
1925             s->block_index[0]+=2;
1926             s->block_index[1]+=2;
1927             s->block_index[2]+=2;
1928             s->block_index[3]+=2;
1929
1930             /* compute motion vector & mb_type and store in context */
1931             if(s->pict_type==B_TYPE)
1932                 ff_estimate_b_frame_motion(s, s->mb_x, s->mb_y);
1933             else
1934                 ff_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1935         }
1936         s->first_slice_line=0;
1937     }
1938     return 0;
1939 }
1940
1941 static int mb_var_thread(AVCodecContext *c, void *arg){
1942     MpegEncContext *s= arg;
1943     int mb_x, mb_y;
1944
1945     ff_check_alignment();
1946
1947     for(mb_y=s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
1948         for(mb_x=0; mb_x < s->mb_width; mb_x++) {
1949             int xx = mb_x * 16;
1950             int yy = mb_y * 16;
1951             uint8_t *pix = s->new_picture.data[0] + (yy * s->linesize) + xx;
1952             int varc;
1953             int sum = s->dsp.pix_sum(pix, s->linesize);
1954
1955             varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8;
1956
1957             s->current_picture.mb_var [s->mb_stride * mb_y + mb_x] = varc;
1958             s->current_picture.mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
1959             s->me.mb_var_sum_temp    += varc;
1960         }
1961     }
1962     return 0;
1963 }
1964
1965 static void write_slice_end(MpegEncContext *s){
1966     if(s->codec_id==CODEC_ID_MPEG4){
1967         if(s->partitioned_frame){
1968             ff_mpeg4_merge_partitions(s);
1969         }
1970
1971         ff_mpeg4_stuffing(&s->pb);
1972     }else if(ENABLE_MJPEG_ENCODER && s->out_format == FMT_MJPEG){
1973         ff_mjpeg_encode_stuffing(&s->pb);
1974     }
1975
1976     align_put_bits(&s->pb);
1977     flush_put_bits(&s->pb);
1978
1979     if((s->flags&CODEC_FLAG_PASS1) && !s->partitioned_frame)
1980         s->misc_bits+= get_bits_diff(s);
1981 }
1982
1983 static int encode_thread(AVCodecContext *c, void *arg){
1984     MpegEncContext *s= arg;
1985     int mb_x, mb_y, pdif = 0;
1986     int i, j;
1987     MpegEncContext best_s, backup_s;
1988     uint8_t bit_buf[2][MAX_MB_BYTES];
1989     uint8_t bit_buf2[2][MAX_MB_BYTES];
1990     uint8_t bit_buf_tex[2][MAX_MB_BYTES];
1991     PutBitContext pb[2], pb2[2], tex_pb[2];
1992 //printf("%d->%d\n", s->resync_mb_y, s->end_mb_y);
1993
1994     ff_check_alignment();
1995
1996     for(i=0; i<2; i++){
1997         init_put_bits(&pb    [i], bit_buf    [i], MAX_MB_BYTES);
1998         init_put_bits(&pb2   [i], bit_buf2   [i], MAX_MB_BYTES);
1999         init_put_bits(&tex_pb[i], bit_buf_tex[i], MAX_MB_BYTES);
2000     }
2001
2002     s->last_bits= put_bits_count(&s->pb);
2003     s->mv_bits=0;
2004     s->misc_bits=0;
2005     s->i_tex_bits=0;
2006     s->p_tex_bits=0;
2007     s->i_count=0;
2008     s->f_count=0;
2009     s->b_count=0;
2010     s->skip_count=0;
2011
2012     for(i=0; i<3; i++){
2013         /* init last dc values */
2014         /* note: quant matrix value (8) is implied here */
2015         s->last_dc[i] = 128 << s->intra_dc_precision;
2016
2017         s->current_picture.error[i] = 0;
2018     }
2019     s->mb_skip_run = 0;
2020     memset(s->last_mv, 0, sizeof(s->last_mv));
2021
2022     s->last_mv_dir = 0;
2023
2024     switch(s->codec_id){
2025     case CODEC_ID_H263:
2026     case CODEC_ID_H263P:
2027     case CODEC_ID_FLV1:
2028         s->gob_index = ff_h263_get_gob_height(s);
2029         break;
2030     case CODEC_ID_MPEG4:
2031         if(s->partitioned_frame)
2032             ff_mpeg4_init_partitions(s);
2033         break;
2034     }
2035
2036     s->resync_mb_x=0;
2037     s->resync_mb_y=0;
2038     s->first_slice_line = 1;
2039     s->ptr_lastgob = s->pb.buf;
2040     for(mb_y= s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
2041 //    printf("row %d at %X\n", s->mb_y, (int)s);
2042         s->mb_x=0;
2043         s->mb_y= mb_y;
2044
2045         ff_set_qscale(s, s->qscale);
2046         ff_init_block_index(s);
2047
2048         for(mb_x=0; mb_x < s->mb_width; mb_x++) {
2049             int xy= mb_y*s->mb_stride + mb_x; // removed const, H261 needs to adjust this
2050             int mb_type= s->mb_type[xy];
2051 //            int d;
2052             int dmin= INT_MAX;
2053             int dir;
2054
2055             if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < MAX_MB_BYTES){
2056                 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2057                 return -1;
2058             }
2059             if(s->data_partitioning){
2060                 if(   s->pb2   .buf_end - s->pb2   .buf - (put_bits_count(&s->    pb2)>>3) < MAX_MB_BYTES
2061                    || s->tex_pb.buf_end - s->tex_pb.buf - (put_bits_count(&s->tex_pb )>>3) < MAX_MB_BYTES){
2062                     av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2063                     return -1;
2064                 }
2065             }
2066
2067             s->mb_x = mb_x;
2068             s->mb_y = mb_y;  // moved into loop, can get changed by H.261
2069             ff_update_block_index(s);
2070
2071             if(ENABLE_H261_ENCODER && s->codec_id == CODEC_ID_H261){
2072                 ff_h261_reorder_mb_index(s);
2073                 xy= s->mb_y*s->mb_stride + s->mb_x;
2074                 mb_type= s->mb_type[xy];
2075             }
2076
2077             /* write gob / video packet header  */
2078             if(s->rtp_mode){
2079                 int current_packet_size, is_gob_start;
2080
2081                 current_packet_size= ((put_bits_count(&s->pb)+7)>>3) - (s->ptr_lastgob - s->pb.buf);
2082
2083                 is_gob_start= s->avctx->rtp_payload_size && current_packet_size >= s->avctx->rtp_payload_size && mb_y + mb_x>0;
2084
2085                 if(s->start_mb_y == mb_y && mb_y > 0 && mb_x==0) is_gob_start=1;
2086
2087                 switch(s->codec_id){
2088                 case CODEC_ID_H263:
2089                 case CODEC_ID_H263P:
2090                     if(!s->h263_slice_structured)
2091                         if(s->mb_x || s->mb_y%s->gob_index) is_gob_start=0;
2092                     break;
2093                 case CODEC_ID_MPEG2VIDEO:
2094                     if(s->mb_x==0 && s->mb_y!=0) is_gob_start=1;
2095                 case CODEC_ID_MPEG1VIDEO:
2096                     if(s->mb_skip_run) is_gob_start=0;
2097                     break;
2098                 }
2099
2100                 if(is_gob_start){
2101                     if(s->start_mb_y != mb_y || mb_x!=0){
2102                         write_slice_end(s);
2103
2104                         if(s->codec_id==CODEC_ID_MPEG4 && s->partitioned_frame){
2105                             ff_mpeg4_init_partitions(s);
2106                         }
2107                     }
2108
2109                     assert((put_bits_count(&s->pb)&7) == 0);
2110                     current_packet_size= pbBufPtr(&s->pb) - s->ptr_lastgob;
2111
2112                     if(s->avctx->error_rate && s->resync_mb_x + s->resync_mb_y > 0){
2113                         int r= put_bits_count(&s->pb)/8 + s->picture_number + 16 + s->mb_x + s->mb_y;
2114                         int d= 100 / s->avctx->error_rate;
2115                         if(r % d == 0){
2116                             current_packet_size=0;
2117 #ifndef ALT_BITSTREAM_WRITER
2118                             s->pb.buf_ptr= s->ptr_lastgob;
2119 #endif
2120                             assert(pbBufPtr(&s->pb) == s->ptr_lastgob);
2121                         }
2122                     }
2123
2124                     if (s->avctx->rtp_callback){
2125                         int number_mb = (mb_y - s->resync_mb_y)*s->mb_width + mb_x - s->resync_mb_x;
2126                         s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, current_packet_size, number_mb);
2127                     }
2128
2129                     switch(s->codec_id){
2130                     case CODEC_ID_MPEG4:
2131                         ff_mpeg4_encode_video_packet_header(s);
2132                         ff_mpeg4_clean_buffers(s);
2133                     break;
2134                     case CODEC_ID_MPEG1VIDEO:
2135                     case CODEC_ID_MPEG2VIDEO:
2136                         if (ENABLE_MPEG1VIDEO_ENCODER || ENABLE_MPEG2VIDEO_ENCODER) {
2137                             ff_mpeg1_encode_slice_header(s);
2138                             ff_mpeg1_clean_buffers(s);
2139                         }
2140                     break;
2141                     case CODEC_ID_H263:
2142                     case CODEC_ID_H263P:
2143                         h263_encode_gob_header(s, mb_y);
2144                     break;
2145                     }
2146
2147                     if(s->flags&CODEC_FLAG_PASS1){
2148                         int bits= put_bits_count(&s->pb);
2149                         s->misc_bits+= bits - s->last_bits;
2150                         s->last_bits= bits;
2151                     }
2152
2153                     s->ptr_lastgob += current_packet_size;
2154                     s->first_slice_line=1;
2155                     s->resync_mb_x=mb_x;
2156                     s->resync_mb_y=mb_y;
2157                 }
2158             }
2159
2160             if(  (s->resync_mb_x   == s->mb_x)
2161                && s->resync_mb_y+1 == s->mb_y){
2162                 s->first_slice_line=0;
2163             }
2164
2165             s->mb_skipped=0;
2166             s->dquant=0; //only for QP_RD
2167
2168             if(mb_type & (mb_type-1) || (s->flags & CODEC_FLAG_QP_RD)){ // more than 1 MB type possible or CODEC_FLAG_QP_RD
2169                 int next_block=0;
2170                 int pb_bits_count, pb2_bits_count, tex_pb_bits_count;
2171
2172                 copy_context_before_encode(&backup_s, s, -1);
2173                 backup_s.pb= s->pb;
2174                 best_s.data_partitioning= s->data_partitioning;
2175                 best_s.partitioned_frame= s->partitioned_frame;
2176                 if(s->data_partitioning){
2177                     backup_s.pb2= s->pb2;
2178                     backup_s.tex_pb= s->tex_pb;
2179                 }
2180
2181                 if(mb_type&CANDIDATE_MB_TYPE_INTER){
2182                     s->mv_dir = MV_DIR_FORWARD;
2183                     s->mv_type = MV_TYPE_16X16;
2184                     s->mb_intra= 0;
2185                     s->mv[0][0][0] = s->p_mv_table[xy][0];
2186                     s->mv[0][0][1] = s->p_mv_table[xy][1];
2187                     encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER, pb, pb2, tex_pb,
2188                                  &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2189                 }
2190                 if(mb_type&CANDIDATE_MB_TYPE_INTER_I){
2191                     s->mv_dir = MV_DIR_FORWARD;
2192                     s->mv_type = MV_TYPE_FIELD;
2193                     s->mb_intra= 0;
2194                     for(i=0; i<2; i++){
2195                         j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2196                         s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2197                         s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2198                     }
2199                     encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER_I, pb, pb2, tex_pb,
2200                                  &dmin, &next_block, 0, 0);
2201                 }
2202                 if(mb_type&CANDIDATE_MB_TYPE_SKIPPED){
2203                     s->mv_dir = MV_DIR_FORWARD;
2204                     s->mv_type = MV_TYPE_16X16;
2205                     s->mb_intra= 0;
2206                     s->mv[0][0][0] = 0;
2207                     s->mv[0][0][1] = 0;
2208                     encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_SKIPPED, pb, pb2, tex_pb,
2209                                  &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2210                 }
2211                 if(mb_type&CANDIDATE_MB_TYPE_INTER4V){
2212                     s->mv_dir = MV_DIR_FORWARD;
2213                     s->mv_type = MV_TYPE_8X8;
2214                     s->mb_intra= 0;
2215                     for(i=0; i<4; i++){
2216                         s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2217                         s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2218                     }
2219                     encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER4V, pb, pb2, tex_pb,
2220                                  &dmin, &next_block, 0, 0);
2221                 }
2222                 if(mb_type&CANDIDATE_MB_TYPE_FORWARD){
2223                     s->mv_dir = MV_DIR_FORWARD;
2224                     s->mv_type = MV_TYPE_16X16;
2225                     s->mb_intra= 0;
2226                     s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2227                     s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2228                     encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD, pb, pb2, tex_pb,
2229                                  &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2230                 }
2231                 if(mb_type&CANDIDATE_MB_TYPE_BACKWARD){
2232                     s->mv_dir = MV_DIR_BACKWARD;
2233                     s->mv_type = MV_TYPE_16X16;
2234                     s->mb_intra= 0;
2235                     s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2236                     s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2237                     encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD, pb, pb2, tex_pb,
2238                                  &dmin, &next_block, s->mv[1][0][0], s->mv[1][0][1]);
2239                 }
2240                 if(mb_type&CANDIDATE_MB_TYPE_BIDIR){
2241                     s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2242                     s->mv_type = MV_TYPE_16X16;
2243                     s->mb_intra= 0;
2244                     s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2245                     s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2246                     s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2247                     s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2248                     encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR, pb, pb2, tex_pb,
2249                                  &dmin, &next_block, 0, 0);
2250                 }
2251                 if(mb_type&CANDIDATE_MB_TYPE_FORWARD_I){
2252                     s->mv_dir = MV_DIR_FORWARD;
2253                     s->mv_type = MV_TYPE_FIELD;
2254                     s->mb_intra= 0;
2255                     for(i=0; i<2; i++){
2256                         j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2257                         s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2258                         s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2259                     }
2260                     encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD_I, pb, pb2, tex_pb,
2261                                  &dmin, &next_block, 0, 0);
2262                 }
2263                 if(mb_type&CANDIDATE_MB_TYPE_BACKWARD_I){
2264                     s->mv_dir = MV_DIR_BACKWARD;
2265                     s->mv_type = MV_TYPE_FIELD;
2266                     s->mb_intra= 0;
2267                     for(i=0; i<2; i++){
2268                         j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2269                         s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2270                         s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2271                     }
2272                     encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD_I, pb, pb2, tex_pb,
2273                                  &dmin, &next_block, 0, 0);
2274                 }
2275                 if(mb_type&CANDIDATE_MB_TYPE_BIDIR_I){
2276                     s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2277                     s->mv_type = MV_TYPE_FIELD;
2278                     s->mb_intra= 0;
2279                     for(dir=0; dir<2; dir++){
2280                         for(i=0; i<2; i++){
2281                             j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2282                             s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2283                             s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2284                         }
2285                     }
2286                     encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR_I, pb, pb2, tex_pb,
2287                                  &dmin, &next_block, 0, 0);
2288                 }
2289                 if(mb_type&CANDIDATE_MB_TYPE_INTRA){
2290                     s->mv_dir = 0;
2291                     s->mv_type = MV_TYPE_16X16;
2292                     s->mb_intra= 1;
2293                     s->mv[0][0][0] = 0;
2294                     s->mv[0][0][1] = 0;
2295                     encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTRA, pb, pb2, tex_pb,
2296                                  &dmin, &next_block, 0, 0);
2297                     if(s->h263_pred || s->h263_aic){
2298                         if(best_s.mb_intra)
2299                             s->mbintra_table[mb_x + mb_y*s->mb_stride]=1;
2300                         else
2301                             ff_clean_intra_table_entries(s); //old mode?
2302                     }
2303                 }
2304
2305                 if((s->flags & CODEC_FLAG_QP_RD) && dmin < INT_MAX){
2306                     if(best_s.mv_type==MV_TYPE_16X16){ //FIXME move 4mv after QPRD
2307                         const int last_qp= backup_s.qscale;
2308                         int qpi, qp, dc[6];
2309                         DCTELEM ac[6][16];
2310                         const int mvdir= (best_s.mv_dir&MV_DIR_BACKWARD) ? 1 : 0;
2311                         static const int dquant_tab[4]={-1,1,-2,2};
2312
2313                         assert(backup_s.dquant == 0);
2314
2315                         //FIXME intra
2316                         s->mv_dir= best_s.mv_dir;
2317                         s->mv_type = MV_TYPE_16X16;
2318                         s->mb_intra= best_s.mb_intra;
2319                         s->mv[0][0][0] = best_s.mv[0][0][0];
2320                         s->mv[0][0][1] = best_s.mv[0][0][1];
2321                         s->mv[1][0][0] = best_s.mv[1][0][0];
2322                         s->mv[1][0][1] = best_s.mv[1][0][1];
2323
2324                         qpi = s->pict_type == B_TYPE ? 2 : 0;
2325                         for(; qpi<4; qpi++){
2326                             int dquant= dquant_tab[qpi];
2327                             qp= last_qp + dquant;
2328                             if(qp < s->avctx->qmin || qp > s->avctx->qmax)
2329                                 continue;
2330                             backup_s.dquant= dquant;
2331                             if(s->mb_intra && s->dc_val[0]){
2332                                 for(i=0; i<6; i++){
2333                                     dc[i]= s->dc_val[0][ s->block_index[i] ];
2334                                     memcpy(ac[i], s->ac_val[0][s->block_index[i]], sizeof(DCTELEM)*16);
2335                                 }
2336                             }
2337
2338                             encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2339                                          &dmin, &next_block, s->mv[mvdir][0][0], s->mv[mvdir][0][1]);
2340                             if(best_s.qscale != qp){
2341                                 if(s->mb_intra && s->dc_val[0]){
2342                                     for(i=0; i<6; i++){
2343                                         s->dc_val[0][ s->block_index[i] ]= dc[i];
2344                                         memcpy(s->ac_val[0][s->block_index[i]], ac[i], sizeof(DCTELEM)*16);
2345                                     }
2346                                 }
2347                             }
2348                         }
2349                     }
2350                 }
2351                 if(mb_type&CANDIDATE_MB_TYPE_DIRECT){
2352                     int mx= s->b_direct_mv_table[xy][0];
2353                     int my= s->b_direct_mv_table[xy][1];
2354
2355                     backup_s.dquant = 0;
2356                     s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2357                     s->mb_intra= 0;
2358                     ff_mpeg4_set_direct_mv(s, mx, my);
2359                     encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2360                                  &dmin, &next_block, mx, my);
2361                 }
2362                 if(mb_type&CANDIDATE_MB_TYPE_DIRECT0){
2363                     backup_s.dquant = 0;
2364                     s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2365                     s->mb_intra= 0;
2366                     ff_mpeg4_set_direct_mv(s, 0, 0);
2367                     encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2368                                  &dmin, &next_block, 0, 0);
2369                 }
2370                 if(!best_s.mb_intra && s->flags2&CODEC_FLAG2_SKIP_RD){
2371                     int coded=0;
2372                     for(i=0; i<6; i++)
2373                         coded |= s->block_last_index[i];
2374                     if(coded){
2375                         int mx,my;
2376                         memcpy(s->mv, best_s.mv, sizeof(s->mv));
2377                         if(best_s.mv_dir & MV_DIRECT){
2378                             mx=my=0; //FIXME find the one we actually used
2379                             ff_mpeg4_set_direct_mv(s, mx, my);
2380                         }else if(best_s.mv_dir&MV_DIR_BACKWARD){
2381                             mx= s->mv[1][0][0];
2382                             my= s->mv[1][0][1];
2383                         }else{
2384                             mx= s->mv[0][0][0];
2385                             my= s->mv[0][0][1];
2386                         }
2387
2388                         s->mv_dir= best_s.mv_dir;
2389                         s->mv_type = best_s.mv_type;
2390                         s->mb_intra= 0;
2391 /*                        s->mv[0][0][0] = best_s.mv[0][0][0];
2392                         s->mv[0][0][1] = best_s.mv[0][0][1];
2393                         s->mv[1][0][0] = best_s.mv[1][0][0];
2394                         s->mv[1][0][1] = best_s.mv[1][0][1];*/
2395                         backup_s.dquant= 0;
2396                         s->skipdct=1;
2397                         encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2398                                         &dmin, &next_block, mx, my);
2399                         s->skipdct=0;
2400                     }
2401                 }
2402
2403                 s->current_picture.qscale_table[xy]= best_s.qscale;
2404
2405                 copy_context_after_encode(s, &best_s, -1);
2406
2407                 pb_bits_count= put_bits_count(&s->pb);
2408                 flush_put_bits(&s->pb);
2409                 ff_copy_bits(&backup_s.pb, bit_buf[next_block^1], pb_bits_count);
2410                 s->pb= backup_s.pb;
2411
2412                 if(s->data_partitioning){
2413                     pb2_bits_count= put_bits_count(&s->pb2);
2414                     flush_put_bits(&s->pb2);
2415                     ff_copy_bits(&backup_s.pb2, bit_buf2[next_block^1], pb2_bits_count);
2416                     s->pb2= backup_s.pb2;
2417
2418                     tex_pb_bits_count= put_bits_count(&s->tex_pb);
2419                     flush_put_bits(&s->tex_pb);
2420                     ff_copy_bits(&backup_s.tex_pb, bit_buf_tex[next_block^1], tex_pb_bits_count);
2421                     s->tex_pb= backup_s.tex_pb;
2422                 }
2423                 s->last_bits= put_bits_count(&s->pb);
2424
2425                 if (s->out_format == FMT_H263 && s->pict_type!=B_TYPE)
2426                     ff_h263_update_motion_val(s);
2427
2428                 if(next_block==0){ //FIXME 16 vs linesize16
2429                     s->dsp.put_pixels_tab[0][0](s->dest[0], s->rd_scratchpad                     , s->linesize  ,16);
2430                     s->dsp.put_pixels_tab[1][0](s->dest[1], s->rd_scratchpad + 16*s->linesize    , s->uvlinesize, 8);
2431                     s->dsp.put_pixels_tab[1][0](s->dest[2], s->rd_scratchpad + 16*s->linesize + 8, s->uvlinesize, 8);
2432                 }
2433
2434                 if(s->avctx->mb_decision == FF_MB_DECISION_BITS)
2435                     MPV_decode_mb(s, s->block);
2436             } else {
2437                 int motion_x = 0, motion_y = 0;
2438                 s->mv_type=MV_TYPE_16X16;
2439                 // only one MB-Type possible
2440
2441                 switch(mb_type){
2442                 case CANDIDATE_MB_TYPE_INTRA:
2443                     s->mv_dir = 0;
2444                     s->mb_intra= 1;
2445                     motion_x= s->mv[0][0][0] = 0;
2446                     motion_y= s->mv[0][0][1] = 0;
2447                     break;
2448                 case CANDIDATE_MB_TYPE_INTER:
2449                     s->mv_dir = MV_DIR_FORWARD;
2450                     s->mb_intra= 0;
2451                     motion_x= s->mv[0][0][0] = s->p_mv_table[xy][0];
2452                     motion_y= s->mv[0][0][1] = s->p_mv_table[xy][1];
2453                     break;
2454                 case CANDIDATE_MB_TYPE_INTER_I:
2455                     s->mv_dir = MV_DIR_FORWARD;
2456                     s->mv_type = MV_TYPE_FIELD;
2457                     s->mb_intra= 0;
2458                     for(i=0; i<2; i++){
2459                         j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2460                         s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2461                         s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2462                     }
2463                     break;
2464                 case CANDIDATE_MB_TYPE_INTER4V:
2465                     s->mv_dir = MV_DIR_FORWARD;
2466                     s->mv_type = MV_TYPE_8X8;
2467                     s->mb_intra= 0;
2468                     for(i=0; i<4; i++){
2469                         s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2470                         s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2471                     }
2472                     break;
2473                 case CANDIDATE_MB_TYPE_DIRECT:
2474                     s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2475                     s->mb_intra= 0;
2476                     motion_x=s->b_direct_mv_table[xy][0];
2477                     motion_y=s->b_direct_mv_table[xy][1];
2478                     ff_mpeg4_set_direct_mv(s, motion_x, motion_y);
2479                     break;
2480                 case CANDIDATE_MB_TYPE_DIRECT0:
2481                     s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2482                     s->mb_intra= 0;
2483                     ff_mpeg4_set_direct_mv(s, 0, 0);
2484                     break;
2485                 case CANDIDATE_MB_TYPE_BIDIR:
2486                     s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2487                     s->mb_intra= 0;
2488                     s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2489                     s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2490                     s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2491                     s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2492                     break;
2493                 case CANDIDATE_MB_TYPE_BACKWARD:
2494                     s->mv_dir = MV_DIR_BACKWARD;
2495                     s->mb_intra= 0;
2496                     motion_x= s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2497                     motion_y= s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2498                     break;
2499                 case CANDIDATE_MB_TYPE_FORWARD:
2500                     s->mv_dir = MV_DIR_FORWARD;
2501                     s->mb_intra= 0;
2502                     motion_x= s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2503                     motion_y= s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2504 //                    printf(" %d %d ", motion_x, motion_y);
2505                     break;
2506                 case CANDIDATE_MB_TYPE_FORWARD_I:
2507                     s->mv_dir = MV_DIR_FORWARD;
2508                     s->mv_type = MV_TYPE_FIELD;
2509                     s->mb_intra= 0;
2510                     for(i=0; i<2; i++){
2511                         j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2512                         s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2513                         s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2514                     }
2515                     break;
2516                 case CANDIDATE_MB_TYPE_BACKWARD_I:
2517                     s->mv_dir = MV_DIR_BACKWARD;
2518                     s->mv_type = MV_TYPE_FIELD;
2519                     s->mb_intra= 0;
2520                     for(i=0; i<2; i++){
2521                         j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2522                         s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2523                         s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2524                     }
2525                     break;
2526                 case CANDIDATE_MB_TYPE_BIDIR_I:
2527                     s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2528                     s->mv_type = MV_TYPE_FIELD;
2529                     s->mb_intra= 0;
2530                     for(dir=0; dir<2; dir++){
2531                         for(i=0; i<2; i++){
2532                             j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2533                             s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2534                             s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2535                         }
2536                     }
2537                     break;
2538                 default:
2539                     av_log(s->avctx, AV_LOG_ERROR, "illegal MB type\n");
2540                 }
2541
2542                 encode_mb(s, motion_x, motion_y);
2543
2544                 // RAL: Update last macroblock type
2545                 s->last_mv_dir = s->mv_dir;
2546
2547                 if (s->out_format == FMT_H263 && s->pict_type!=B_TYPE)
2548                     ff_h263_update_motion_val(s);
2549
2550                 MPV_decode_mb(s, s->block);
2551             }
2552
2553             /* clean the MV table in IPS frames for direct mode in B frames */
2554             if(s->mb_intra /* && I,P,S_TYPE */){
2555                 s->p_mv_table[xy][0]=0;
2556                 s->p_mv_table[xy][1]=0;
2557             }
2558
2559             if(s->flags&CODEC_FLAG_PSNR){
2560                 int w= 16;
2561                 int h= 16;
2562
2563                 if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
2564                 if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
2565
2566                 s->current_picture.error[0] += sse(
2567                     s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16,
2568                     s->dest[0], w, h, s->linesize);
2569                 s->current_picture.error[1] += sse(
2570                     s, s->new_picture.data[1] + s->mb_x*8  + s->mb_y*s->uvlinesize*8,
2571                     s->dest[1], w>>1, h>>1, s->uvlinesize);
2572                 s->current_picture.error[2] += sse(
2573                     s, s->new_picture    .data[2] + s->mb_x*8  + s->mb_y*s->uvlinesize*8,
2574                     s->dest[2], w>>1, h>>1, s->uvlinesize);
2575             }
2576             if(s->loop_filter){
2577                 if(s->out_format == FMT_H263)
2578                     ff_h263_loop_filter(s);
2579             }
2580 //printf("MB %d %d bits\n", s->mb_x+s->mb_y*s->mb_stride, put_bits_count(&s->pb));
2581         }
2582     }
2583
2584     //not beautiful here but we must write it before flushing so it has to be here
2585     if (ENABLE_MSMPEG4_ENCODER && s->msmpeg4_version && s->msmpeg4_version<4 && s->pict_type == I_TYPE)
2586         msmpeg4_encode_ext_header(s);
2587
2588     write_slice_end(s);
2589
2590     /* Send the last GOB if RTP */
2591     if (s->avctx->rtp_callback) {
2592         int number_mb = (mb_y - s->resync_mb_y)*s->mb_width - s->resync_mb_x;
2593         pdif = pbBufPtr(&s->pb) - s->ptr_lastgob;
2594         /* Call the RTP callback to send the last GOB */
2595         emms_c();
2596         s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, pdif, number_mb);
2597     }
2598
2599     return 0;
2600 }
2601
2602 #define MERGE(field) dst->field += src->field; src->field=0
2603 static void merge_context_after_me(MpegEncContext *dst, MpegEncContext *src){
2604     MERGE(me.scene_change_score);
2605     MERGE(me.mc_mb_var_sum_temp);
2606     MERGE(me.mb_var_sum_temp);
2607 }
2608
2609 static void merge_context_after_encode(MpegEncContext *dst, MpegEncContext *src){
2610     int i;
2611
2612     MERGE(dct_count[0]); //note, the other dct vars are not part of the context
2613     MERGE(dct_count[1]);
2614     MERGE(mv_bits);
2615     MERGE(i_tex_bits);
2616     MERGE(p_tex_bits);
2617     MERGE(i_count);
2618     MERGE(f_count);
2619     MERGE(b_count);
2620     MERGE(skip_count);
2621     MERGE(misc_bits);
2622     MERGE(error_count);
2623     MERGE(padding_bug_score);
2624     MERGE(current_picture.error[0]);
2625     MERGE(current_picture.error[1]);
2626     MERGE(current_picture.error[2]);
2627
2628     if(dst->avctx->noise_reduction){
2629         for(i=0; i<64; i++){
2630             MERGE(dct_error_sum[0][i]);
2631             MERGE(dct_error_sum[1][i]);
2632         }
2633     }
2634
2635     assert(put_bits_count(&src->pb) % 8 ==0);
2636     assert(put_bits_count(&dst->pb) % 8 ==0);
2637     ff_copy_bits(&dst->pb, src->pb.buf, put_bits_count(&src->pb));
2638     flush_put_bits(&dst->pb);
2639 }
2640
2641 static int estimate_qp(MpegEncContext *s, int dry_run){
2642     if (s->next_lambda){
2643         s->current_picture_ptr->quality=
2644         s->current_picture.quality = s->next_lambda;
2645         if(!dry_run) s->next_lambda= 0;
2646     } else if (!s->fixed_qscale) {
2647         s->current_picture_ptr->quality=
2648         s->current_picture.quality = ff_rate_estimate_qscale(s, dry_run);
2649         if (s->current_picture.quality < 0)
2650             return -1;
2651     }
2652
2653     if(s->adaptive_quant){
2654         switch(s->codec_id){
2655         case CODEC_ID_MPEG4:
2656             ff_clean_mpeg4_qscales(s);
2657             break;
2658         case CODEC_ID_H263:
2659         case CODEC_ID_H263P:
2660         case CODEC_ID_FLV1:
2661             ff_clean_h263_qscales(s);
2662             break;
2663         }
2664
2665         s->lambda= s->lambda_table[0];
2666         //FIXME broken
2667     }else
2668         s->lambda= s->current_picture.quality;
2669 //printf("%d %d\n", s->avctx->global_quality, s->current_picture.quality);
2670     update_qscale(s);
2671     return 0;
2672 }
2673
2674 static int encode_picture(MpegEncContext *s, int picture_number)
2675 {
2676     int i;
2677     int bits;
2678
2679     s->picture_number = picture_number;
2680
2681     /* Reset the average MB variance */
2682     s->me.mb_var_sum_temp    =
2683     s->me.mc_mb_var_sum_temp = 0;
2684
2685     /* we need to initialize some time vars before we can encode b-frames */
2686     // RAL: Condition added for MPEG1VIDEO
2687     if (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO || (s->h263_pred && !s->h263_msmpeg4))
2688         ff_set_mpeg4_time(s, s->picture_number);  //FIXME rename and use has_b_frames or similar
2689
2690     s->me.scene_change_score=0;
2691
2692 //    s->lambda= s->current_picture_ptr->quality; //FIXME qscale / ... stuff for ME ratedistoration
2693
2694     if(s->pict_type==I_TYPE){
2695         if(s->msmpeg4_version >= 3) s->no_rounding=1;
2696         else                        s->no_rounding=0;
2697     }else if(s->pict_type!=B_TYPE){
2698         if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
2699             s->no_rounding ^= 1;
2700     }
2701
2702     if(s->flags & CODEC_FLAG_PASS2){
2703         if (estimate_qp(s,1) < 0)
2704             return -1;
2705         ff_get_2pass_fcode(s);
2706     }else if(!(s->flags & CODEC_FLAG_QSCALE)){
2707         if(s->pict_type==B_TYPE)
2708             s->lambda= s->last_lambda_for[s->pict_type];
2709         else
2710             s->lambda= s->last_lambda_for[s->last_non_b_pict_type];
2711         update_qscale(s);
2712     }
2713
2714     s->mb_intra=0; //for the rate distortion & bit compare functions
2715     for(i=1; i<s->avctx->thread_count; i++){
2716         ff_update_duplicate_context(s->thread_context[i], s);
2717     }
2718
2719     ff_init_me(s);
2720
2721     /* Estimate motion for every MB */
2722     if(s->pict_type != I_TYPE){
2723         s->lambda = (s->lambda * s->avctx->me_penalty_compensation + 128)>>8;
2724         s->lambda2= (s->lambda2* (int64_t)s->avctx->me_penalty_compensation + 128)>>8;
2725         if(s->pict_type != B_TYPE && s->avctx->me_threshold==0){
2726             if((s->avctx->pre_me && s->last_non_b_pict_type==I_TYPE) || s->avctx->pre_me==2){
2727                 s->avctx->execute(s->avctx, pre_estimate_motion_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count);
2728             }
2729         }
2730
2731         s->avctx->execute(s->avctx, estimate_motion_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count);
2732     }else /* if(s->pict_type == I_TYPE) */{
2733         /* I-Frame */
2734         for(i=0; i<s->mb_stride*s->mb_height; i++)
2735             s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2736
2737         if(!s->fixed_qscale){
2738             /* finding spatial complexity for I-frame rate control */
2739             s->avctx->execute(s->avctx, mb_var_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count);
2740         }
2741     }
2742     for(i=1; i<s->avctx->thread_count; i++){
2743         merge_context_after_me(s, s->thread_context[i]);
2744     }
2745     s->current_picture.mc_mb_var_sum= s->current_picture_ptr->mc_mb_var_sum= s->me.mc_mb_var_sum_temp;
2746     s->current_picture.   mb_var_sum= s->current_picture_ptr->   mb_var_sum= s->me.   mb_var_sum_temp;
2747     emms_c();
2748
2749     if(s->me.scene_change_score > s->avctx->scenechange_threshold && s->pict_type == P_TYPE){
2750         s->pict_type= I_TYPE;
2751         for(i=0; i<s->mb_stride*s->mb_height; i++)
2752             s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2753 //printf("Scene change detected, encoding as I Frame %d %d\n", s->current_picture.mb_var_sum, s->current_picture.mc_mb_var_sum);
2754     }
2755
2756     if(!s->umvplus){
2757         if(s->pict_type==P_TYPE || s->pict_type==S_TYPE) {
2758             s->f_code= ff_get_best_fcode(s, s->p_mv_table, CANDIDATE_MB_TYPE_INTER);
2759
2760             if(s->flags & CODEC_FLAG_INTERLACED_ME){
2761                 int a,b;
2762                 a= ff_get_best_fcode(s, s->p_field_mv_table[0][0], CANDIDATE_MB_TYPE_INTER_I); //FIXME field_select
2763                 b= ff_get_best_fcode(s, s->p_field_mv_table[1][1], CANDIDATE_MB_TYPE_INTER_I);
2764                 s->f_code= FFMAX(s->f_code, FFMAX(a,b));
2765             }
2766
2767             ff_fix_long_p_mvs(s);
2768             ff_fix_long_mvs(s, NULL, 0, s->p_mv_table, s->f_code, CANDIDATE_MB_TYPE_INTER, 0);
2769             if(s->flags & CODEC_FLAG_INTERLACED_ME){
2770                 int j;
2771                 for(i=0; i<2; i++){
2772                     for(j=0; j<2; j++)
2773                         ff_fix_long_mvs(s, s->p_field_select_table[i], j,
2774                                         s->p_field_mv_table[i][j], s->f_code, CANDIDATE_MB_TYPE_INTER_I, 0);
2775                 }
2776             }
2777         }
2778
2779         if(s->pict_type==B_TYPE){
2780             int a, b;
2781
2782             a = ff_get_best_fcode(s, s->b_forw_mv_table, CANDIDATE_MB_TYPE_FORWARD);
2783             b = ff_get_best_fcode(s, s->b_bidir_forw_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2784             s->f_code = FFMAX(a, b);
2785
2786             a = ff_get_best_fcode(s, s->b_back_mv_table, CANDIDATE_MB_TYPE_BACKWARD);
2787             b = ff_get_best_fcode(s, s->b_bidir_back_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2788             s->b_code = FFMAX(a, b);
2789
2790             ff_fix_long_mvs(s, NULL, 0, s->b_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_FORWARD, 1);
2791             ff_fix_long_mvs(s, NULL, 0, s->b_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BACKWARD, 1);
2792             ff_fix_long_mvs(s, NULL, 0, s->b_bidir_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2793             ff_fix_long_mvs(s, NULL, 0, s->b_bidir_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2794             if(s->flags & CODEC_FLAG_INTERLACED_ME){
2795                 int dir, j;
2796                 for(dir=0; dir<2; dir++){
2797                     for(i=0; i<2; i++){
2798                         for(j=0; j<2; j++){
2799                             int type= dir ? (CANDIDATE_MB_TYPE_BACKWARD_I|CANDIDATE_MB_TYPE_BIDIR_I)
2800                                           : (CANDIDATE_MB_TYPE_FORWARD_I |CANDIDATE_MB_TYPE_BIDIR_I);
2801                             ff_fix_long_mvs(s, s->b_field_select_table[dir][i], j,
2802                                             s->b_field_mv_table[dir][i][j], dir ? s->b_code : s->f_code, type, 1);
2803                         }
2804                     }
2805                 }
2806             }
2807         }
2808     }
2809
2810     if (estimate_qp(s, 0) < 0)
2811         return -1;
2812
2813     if(s->qscale < 3 && s->max_qcoeff<=128 && s->pict_type==I_TYPE && !(s->flags & CODEC_FLAG_QSCALE))
2814         s->qscale= 3; //reduce clipping problems
2815
2816     if (s->out_format == FMT_MJPEG) {
2817         /* for mjpeg, we do include qscale in the matrix */
2818         s->intra_matrix[0] = ff_mpeg1_default_intra_matrix[0];
2819         for(i=1;i<64;i++){
2820             int j= s->dsp.idct_permutation[i];
2821
2822             s->intra_matrix[j] = av_clip_uint8((ff_mpeg1_default_intra_matrix[i] * s->qscale) >> 3);
2823         }
2824         convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
2825                        s->intra_matrix, s->intra_quant_bias, 8, 8, 1);
2826         s->qscale= 8;
2827     }
2828
2829     //FIXME var duplication
2830     s->current_picture_ptr->key_frame=
2831     s->current_picture.key_frame= s->pict_type == I_TYPE; //FIXME pic_ptr
2832     s->current_picture_ptr->pict_type=
2833     s->current_picture.pict_type= s->pict_type;
2834
2835     if(s->current_picture.key_frame)
2836         s->picture_in_gop_number=0;
2837
2838     s->last_bits= put_bits_count(&s->pb);
2839     switch(s->out_format) {
2840     case FMT_MJPEG:
2841         if (ENABLE_MJPEG_ENCODER)
2842             ff_mjpeg_encode_picture_header(s);
2843         break;
2844     case FMT_H261:
2845         if (ENABLE_H261_ENCODER)
2846             ff_h261_encode_picture_header(s, picture_number);
2847         break;
2848     case FMT_H263:
2849         if (ENABLE_WMV2_ENCODER && s->codec_id == CODEC_ID_WMV2)
2850             ff_wmv2_encode_picture_header(s, picture_number);
2851         else if (ENABLE_MSMPEG4_ENCODER && s->h263_msmpeg4)
2852             msmpeg4_encode_picture_header(s, picture_number);
2853         else if (s->h263_pred)
2854             mpeg4_encode_picture_header(s, picture_number);
2855         else if (ENABLE_RV10_ENCODER && s->codec_id == CODEC_ID_RV10)
2856             rv10_encode_picture_header(s, picture_number);
2857         else if (ENABLE_RV20_ENCODER && s->codec_id == CODEC_ID_RV20)
2858             rv20_encode_picture_header(s, picture_number);
2859         else if (s->codec_id == CODEC_ID_FLV1)
2860             ff_flv_encode_picture_header(s, picture_number);
2861         else
2862             h263_encode_picture_header(s, picture_number);
2863         break;
2864     case FMT_MPEG1:
2865         if (ENABLE_MPEG1VIDEO_ENCODER || ENABLE_MPEG2VIDEO_ENCODER)
2866             mpeg1_encode_picture_header(s, picture_number);
2867         break;
2868     case FMT_H264:
2869         break;
2870     default:
2871         assert(0);
2872     }
2873     bits= put_bits_count(&s->pb);
2874     s->header_bits= bits - s->last_bits;
2875
2876     for(i=1; i<s->avctx->thread_count; i++){
2877         update_duplicate_context_after_me(s->thread_context[i], s);
2878     }
2879     s->avctx->execute(s->avctx, encode_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count);
2880     for(i=1; i<s->avctx->thread_count; i++){
2881         merge_context_after_encode(s, s->thread_context[i]);
2882     }
2883     emms_c();
2884     return 0;
2885 }
2886
2887 void  denoise_dct_c(MpegEncContext *s, DCTELEM *block){
2888     const int intra= s->mb_intra;
2889     int i;
2890
2891     s->dct_count[intra]++;
2892
2893     for(i=0; i<64; i++){
2894         int level= block[i];
2895
2896         if(level){
2897             if(level>0){
2898                 s->dct_error_sum[intra][i] += level;
2899                 level -= s->dct_offset[intra][i];
2900                 if(level<0) level=0;
2901             }else{
2902                 s->dct_error_sum[intra][i] -= level;
2903                 level += s->dct_offset[intra][i];
2904                 if(level>0) level=0;
2905             }
2906             block[i]= level;
2907         }
2908     }
2909 }
2910
2911 int dct_quantize_trellis_c(MpegEncContext *s,
2912                         DCTELEM *block, int n,
2913                         int qscale, int *overflow){
2914     const int *qmat;
2915     const uint8_t *scantable= s->intra_scantable.scantable;
2916     const uint8_t *perm_scantable= s->intra_scantable.permutated;
2917     int max=0;
2918     unsigned int threshold1, threshold2;
2919     int bias=0;
2920     int run_tab[65];
2921     int level_tab[65];
2922     int score_tab[65];
2923     int survivor[65];
2924     int survivor_count;
2925     int last_run=0;
2926     int last_level=0;
2927     int last_score= 0;
2928     int last_i;
2929     int coeff[2][64];
2930     int coeff_count[64];
2931     int qmul, qadd, start_i, last_non_zero, i, dc;
2932     const int esc_length= s->ac_esc_length;
2933     uint8_t * length;
2934     uint8_t * last_length;
2935     const int lambda= s->lambda2 >> (FF_LAMBDA_SHIFT - 6);
2936
2937     s->dsp.fdct (block);
2938
2939     if(s->dct_error_sum)
2940         s->denoise_dct(s, block);
2941     qmul= qscale*16;
2942     qadd= ((qscale-1)|1)*8;
2943
2944     if (s->mb_intra) {
2945         int q;
2946         if (!s->h263_aic) {
2947             if (n < 4)
2948                 q = s->y_dc_scale;
2949             else
2950                 q = s->c_dc_scale;
2951             q = q << 3;
2952         } else{
2953             /* For AIC we skip quant/dequant of INTRADC */
2954             q = 1 << 3;
2955             qadd=0;
2956         }
2957
2958         /* note: block[0] is assumed to be positive */
2959         block[0] = (block[0] + (q >> 1)) / q;
2960         start_i = 1;
2961         last_non_zero = 0;
2962         qmat = s->q_intra_matrix[qscale];
2963         if(s->mpeg_quant || s->out_format == FMT_MPEG1)
2964             bias= 1<<(QMAT_SHIFT-1);
2965         length     = s->intra_ac_vlc_length;
2966         last_length= s->intra_ac_vlc_last_length;
2967     } else {
2968         start_i = 0;
2969         last_non_zero = -1;
2970         qmat = s->q_inter_matrix[qscale];
2971         length     = s->inter_ac_vlc_length;
2972         last_length= s->inter_ac_vlc_last_length;
2973     }
2974     last_i= start_i;
2975
2976     threshold1= (1<<QMAT_SHIFT) - bias - 1;
2977     threshold2= (threshold1<<1);
2978
2979     for(i=63; i>=start_i; i--) {
2980         const int j = scantable[i];
2981         int level = block[j] * qmat[j];
2982
2983         if(((unsigned)(level+threshold1))>threshold2){
2984             last_non_zero = i;
2985             break;
2986         }
2987     }
2988
2989     for(i=start_i; i<=last_non_zero; i++) {
2990         const int j = scantable[i];
2991         int level = block[j] * qmat[j];
2992
2993 //        if(   bias+level >= (1<<(QMAT_SHIFT - 3))
2994 //           || bias-level >= (1<<(QMAT_SHIFT - 3))){
2995         if(((unsigned)(level+threshold1))>threshold2){
2996             if(level>0){
2997                 level= (bias + level)>>QMAT_SHIFT;
2998                 coeff[0][i]= level;
2999                 coeff[1][i]= level-1;
3000 //                coeff[2][k]= level-2;
3001             }else{
3002                 level= (bias - level)>>QMAT_SHIFT;
3003                 coeff[0][i]= -level;
3004                 coeff[1][i]= -level+1;
3005 //                coeff[2][k]= -level+2;
3006             }
3007             coeff_count[i]= FFMIN(level, 2);
3008             assert(coeff_count[i]);
3009             max |=level;
3010         }else{
3011             coeff[0][i]= (level>>31)|1;
3012             coeff_count[i]= 1;
3013         }
3014     }
3015
3016     *overflow= s->max_qcoeff < max; //overflow might have happened
3017
3018     if(last_non_zero < start_i){
3019         memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3020         return last_non_zero;
3021     }
3022
3023     score_tab[start_i]= 0;
3024     survivor[0]= start_i;
3025     survivor_count= 1;
3026
3027     for(i=start_i; i<=last_non_zero; i++){
3028         int level_index, j;
3029         const int dct_coeff= FFABS(block[ scantable[i] ]);
3030         const int zero_distoration= dct_coeff*dct_coeff;
3031         int best_score=256*256*256*120;
3032         for(level_index=0; level_index < coeff_count[i]; level_index++){
3033             int distoration;
3034             int level= coeff[level_index][i];
3035             const int alevel= FFABS(level);
3036             int unquant_coeff;
3037
3038             assert(level);
3039
3040             if(s->out_format == FMT_H263){
3041                 unquant_coeff= alevel*qmul + qadd;
3042             }else{ //MPEG1
3043                 j= s->dsp.idct_permutation[ scantable[i] ]; //FIXME optimize
3044                 if(s->mb_intra){
3045                         unquant_coeff = (int)(  alevel  * qscale * s->intra_matrix[j]) >> 3;
3046                         unquant_coeff =   (unquant_coeff - 1) | 1;
3047                 }else{
3048                         unquant_coeff = (((  alevel  << 1) + 1) * qscale * ((int) s->inter_matrix[j])) >> 4;
3049                         unquant_coeff =   (unquant_coeff - 1) | 1;
3050                 }
3051                 unquant_coeff<<= 3;
3052             }
3053
3054             distoration= (unquant_coeff - dct_coeff) * (unquant_coeff - dct_coeff) - zero_distoration;
3055             level+=64;
3056             if((level&(~127)) == 0){
3057                 for(j=survivor_count-1; j>=0; j--){
3058                     int run= i - survivor[j];
3059                     int score= distoration + length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3060                     score += score_tab[i-run];
3061
3062                     if(score < best_score){
3063                         best_score= score;
3064                         run_tab[i+1]= run;
3065                         level_tab[i+1]= level-64;
3066                     }
3067                 }
3068
3069                 if(s->out_format == FMT_H263){
3070                     for(j=survivor_count-1; j>=0; j--){
3071                         int run= i - survivor[j];
3072                         int score= distoration + last_length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3073                         score += score_tab[i-run];
3074                         if(score < last_score){
3075                             last_score= score;
3076                             last_run= run;
3077                             last_level= level-64;
3078                             last_i= i+1;
3079                         }
3080                     }
3081                 }
3082             }else{
3083                 distoration += esc_length*lambda;
3084                 for(j=survivor_count-1; j>=0; j--){
3085                     int run= i - survivor[j];
3086                     int score= distoration + score_tab[i-run];
3087
3088                     if(score < best_score){
3089                         best_score= score;
3090                         run_tab[i+1]= run;
3091                         level_tab[i+1]= level-64;
3092                     }
3093                 }
3094
3095                 if(s->out_format == FMT_H263){
3096                   for(j=survivor_count-1; j>=0; j--){
3097                         int run= i - survivor[j];
3098                         int score= distoration + score_tab[i-run];
3099                         if(score < last_score){
3100                             last_score= score;
3101                             last_run= run;
3102                             last_level= level-64;
3103                             last_i= i+1;
3104                         }
3105                     }
3106                 }
3107             }
3108         }
3109
3110         score_tab[i+1]= best_score;
3111
3112         //Note: there is a vlc code in mpeg4 which is 1 bit shorter then another one with a shorter run and the same level
3113         if(last_non_zero <= 27){
3114             for(; survivor_count; survivor_count--){
3115                 if(score_tab[ survivor[survivor_count-1] ] <= best_score)
3116                     break;
3117             }
3118         }else{
3119             for(; survivor_count; survivor_count--){
3120                 if(score_tab[ survivor[survivor_count-1] ] <= best_score + lambda)
3121                     break;
3122             }
3123         }
3124
3125         survivor[ survivor_count++ ]= i+1;
3126     }
3127
3128     if(s->out_format != FMT_H263){
3129         last_score= 256*256*256*120;
3130         for(i= survivor[0]; i<=last_non_zero + 1; i++){
3131             int score= score_tab[i];
3132             if(i) score += lambda*2; //FIXME exacter?
3133
3134             if(score < last_score){
3135                 last_score= score;
3136                 last_i= i;
3137                 last_level= level_tab[i];
3138                 last_run= run_tab[i];
3139             }
3140         }
3141     }
3142
3143     s->coded_score[n] = last_score;
3144
3145     dc= FFABS(block[0]);
3146     last_non_zero= last_i - 1;
3147     memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3148
3149     if(last_non_zero < start_i)
3150         return last_non_zero;
3151
3152     if(last_non_zero == 0 && start_i == 0){
3153         int best_level= 0;
3154         int best_score= dc * dc;
3155
3156         for(i=0; i<coeff_count[0]; i++){
3157             int level= coeff[i][0];
3158             int alevel= FFABS(level);
3159             int unquant_coeff, score, distortion;
3160
3161             if(s->out_format == FMT_H263){
3162                     unquant_coeff= (alevel*qmul + qadd)>>3;
3163             }else{ //MPEG1
3164                     unquant_coeff = (((  alevel  << 1) + 1) * qscale * ((int) s->inter_matrix[0])) >> 4;
3165                     unquant_coeff =   (unquant_coeff - 1) | 1;
3166             }
3167             unquant_coeff = (unquant_coeff + 4) >> 3;
3168             unquant_coeff<<= 3 + 3;
3169
3170             distortion= (unquant_coeff - dc) * (unquant_coeff - dc);
3171             level+=64;
3172             if((level&(~127)) == 0) score= distortion + last_length[UNI_AC_ENC_INDEX(0, level)]*lambda;
3173             else                    score= distortion + esc_length*lambda;
3174
3175             if(score < best_score){
3176                 best_score= score;
3177                 best_level= level - 64;
3178             }
3179         }
3180         block[0]= best_level;
3181         s->coded_score[n] = best_score - dc*dc;
3182         if(best_level == 0) return -1;
3183         else                return last_non_zero;
3184     }
3185
3186     i= last_i;
3187     assert(last_level);
3188
3189     block[ perm_scantable[last_non_zero] ]= last_level;
3190     i -= last_run + 1;
3191
3192     for(; i>start_i; i -= run_tab[i] + 1){
3193         block[ perm_scantable[i-1] ]= level_tab[i];
3194     }
3195
3196     return last_non_zero;
3197 }
3198
3199 //#define REFINE_STATS 1
3200 static int16_t basis[64][64];
3201
3202 static void build_basis(uint8_t *perm){
3203     int i, j, x, y;
3204     emms_c();
3205     for(i=0; i<8; i++){
3206         for(j=0; j<8; j++){
3207             for(y=0; y<8; y++){
3208                 for(x=0; x<8; x++){
3209                     double s= 0.25*(1<<BASIS_SHIFT);
3210                     int index= 8*i + j;
3211                     int perm_index= perm[index];
3212                     if(i==0) s*= sqrt(0.5);
3213                     if(j==0) s*= sqrt(0.5);
3214                     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)));
3215                 }
3216             }
3217         }
3218     }
3219 }
3220
3221 static int dct_quantize_refine(MpegEncContext *s, //FIXME breaks denoise?
3222                         DCTELEM *block, int16_t *weight, DCTELEM *orig,
3223                         int n, int qscale){
3224     int16_t rem[64];
3225     DECLARE_ALIGNED_16(DCTELEM, d1[64]);
3226     const int *qmat;
3227     const uint8_t *scantable= s->intra_scantable.scantable;
3228     const uint8_t *perm_scantable= s->intra_scantable.permutated;
3229 //    unsigned int threshold1, threshold2;
3230 //    int bias=0;
3231     int run_tab[65];
3232     int prev_run=0;
3233     int prev_level=0;
3234     int qmul, qadd, start_i, last_non_zero, i, dc;
3235     uint8_t * length;
3236     uint8_t * last_length;
3237     int lambda;
3238     int rle_index, run, q = 1, sum; //q is only used when s->mb_intra is true
3239 #ifdef REFINE_STATS
3240 static int count=0;
3241 static int after_last=0;
3242 static int to_zero=0;
3243 static int from_zero=0;
3244 static int raise=0;
3245 static int lower=0;
3246 static int messed_sign=0;
3247 #endif
3248
3249     if(basis[0][0] == 0)
3250         build_basis(s->dsp.idct_permutation);
3251
3252     qmul= qscale*2;
3253     qadd= (qscale-1)|1;
3254     if (s->mb_intra) {
3255         if (!s->h263_aic) {
3256             if (n < 4)
3257                 q = s->y_dc_scale;
3258             else
3259                 q = s->c_dc_scale;
3260         } else{
3261             /* For AIC we skip quant/dequant of INTRADC */
3262             q = 1;
3263             qadd=0;
3264         }
3265         q <<= RECON_SHIFT-3;
3266         /* note: block[0] is assumed to be positive */
3267         dc= block[0]*q;
3268 //        block[0] = (block[0] + (q >> 1)) / q;
3269         start_i = 1;
3270         qmat = s->q_intra_matrix[qscale];
3271 //        if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3272 //            bias= 1<<(QMAT_SHIFT-1);
3273         length     = s->intra_ac_vlc_length;
3274         last_length= s->intra_ac_vlc_last_length;
3275     } else {
3276         dc= 0;
3277         start_i = 0;
3278         qmat = s->q_inter_matrix[qscale];
3279         length     = s->inter_ac_vlc_length;
3280         last_length= s->inter_ac_vlc_last_length;
3281     }
3282     last_non_zero = s->block_last_index[n];
3283
3284 #ifdef REFINE_STATS
3285 {START_TIMER
3286 #endif
3287     dc += (1<<(RECON_SHIFT-1));
3288     for(i=0; i<64; i++){
3289         rem[i]= dc - (orig[i]<<RECON_SHIFT); //FIXME  use orig dirrectly instead of copying to rem[]
3290     }
3291 #ifdef REFINE_STATS
3292 STOP_TIMER("memset rem[]")}
3293 #endif
3294     sum=0;
3295     for(i=0; i<64; i++){
3296         int one= 36;
3297         int qns=4;
3298         int w;
3299
3300         w= FFABS(weight[i]) + qns*one;
3301         w= 15 + (48*qns*one + w/2)/w; // 16 .. 63
3302
3303         weight[i] = w;
3304 //        w=weight[i] = (63*qns + (w/2)) / w;
3305
3306         assert(w>0);
3307         assert(w<(1<<6));
3308         sum += w*w;
3309     }
3310     lambda= sum*(uint64_t)s->lambda2 >> (FF_LAMBDA_SHIFT - 6 + 6 + 6 + 6);
3311 #ifdef REFINE_STATS
3312 {START_TIMER
3313 #endif
3314     run=0;
3315     rle_index=0;
3316     for(i=start_i; i<=last_non_zero; i++){
3317         int j= perm_scantable[i];
3318         const int level= block[j];
3319         int coeff;
3320
3321         if(level){
3322             if(level<0) coeff= qmul*level - qadd;
3323             else        coeff= qmul*level + qadd;
3324             run_tab[rle_index++]=run;
3325             run=0;
3326
3327             s->dsp.add_8x8basis(rem, basis[j], coeff);
3328         }else{
3329             run++;
3330         }
3331     }
3332 #ifdef REFINE_STATS
3333 if(last_non_zero>0){
3334 STOP_TIMER("init rem[]")
3335 }
3336 }
3337
3338 {START_TIMER
3339 #endif
3340     for(;;){
3341         int best_score=s->dsp.try_8x8basis(rem, weight, basis[0], 0);
3342         int best_coeff=0;
3343         int best_change=0;
3344         int run2, best_unquant_change=0, analyze_gradient;
3345 #ifdef REFINE_STATS
3346 {START_TIMER
3347 #endif
3348         analyze_gradient = last_non_zero > 2 || s->avctx->quantizer_noise_shaping >= 3;
3349
3350         if(analyze_gradient){
3351 #ifdef REFINE_STATS
3352 {START_TIMER
3353 #endif
3354             for(i=0; i<64; i++){
3355                 int w= weight[i];
3356
3357                 d1[i] = (rem[i]*w*w + (1<<(RECON_SHIFT+12-1)))>>(RECON_SHIFT+12);
3358             }
3359 #ifdef REFINE_STATS
3360 STOP_TIMER("rem*w*w")}
3361 {START_TIMER
3362 #endif
3363             s->dsp.fdct(d1);
3364 #ifdef REFINE_STATS
3365 STOP_TIMER("dct")}
3366 #endif
3367         }
3368
3369         if(start_i){
3370             const int level= block[0];
3371             int change, old_coeff;
3372
3373             assert(s->mb_intra);
3374
3375             old_coeff= q*level;
3376
3377             for(change=-1; change<=1; change+=2){
3378                 int new_level= level + change;
3379                 int score, new_coeff;
3380
3381                 new_coeff= q*new_level;
3382                 if(new_coeff >= 2048 || new_coeff < 0)
3383                     continue;
3384
3385                 score= s->dsp.try_8x8basis(rem, weight, basis[0], new_coeff - old_coeff);
3386                 if(score<best_score){
3387                     best_score= score;
3388                     best_coeff= 0;
3389                     best_change= change;
3390                     best_unquant_change= new_coeff - old_coeff;
3391                 }
3392             }
3393         }
3394
3395         run=0;
3396         rle_index=0;
3397         run2= run_tab[rle_index++];
3398         prev_level=0;
3399         prev_run=0;
3400
3401         for(i=start_i; i<64; i++){
3402             int j= perm_scantable[i];
3403             const int level= block[j];
3404             int change, old_coeff;
3405
3406             if(s->avctx->quantizer_noise_shaping < 3 && i > last_non_zero + 1)
3407                 break;
3408
3409             if(level){
3410                 if(level<0) old_coeff= qmul*level - qadd;
3411                 else        old_coeff= qmul*level + qadd;
3412                 run2= run_tab[rle_index++]; //FIXME ! maybe after last
3413             }else{
3414                 old_coeff=0;
3415                 run2--;
3416                 assert(run2>=0 || i >= last_non_zero );
3417             }
3418
3419             for(change=-1; change<=1; change+=2){
3420                 int new_level= level + change;
3421                 int score, new_coeff, unquant_change;
3422
3423                 score=0;
3424                 if(s->avctx->quantizer_noise_shaping < 2 && FFABS(new_level) > FFABS(level))
3425                    continue;
3426
3427                 if(new_level){
3428                     if(new_level<0) new_coeff= qmul*new_level - qadd;
3429                     else            new_coeff= qmul*new_level + qadd;
3430                     if(new_coeff >= 2048 || new_coeff <= -2048)
3431                         continue;
3432                     //FIXME check for overflow
3433
3434                     if(level){
3435                         if(level < 63 && level > -63){
3436                             if(i < last_non_zero)
3437                                 score +=   length[UNI_AC_ENC_INDEX(run, new_level+64)]
3438                                          - length[UNI_AC_ENC_INDEX(run, level+64)];
3439                             else
3440                                 score +=   last_length[UNI_AC_ENC_INDEX(run, new_level+64)]
3441                                          - last_length[UNI_AC_ENC_INDEX(run, level+64)];
3442                         }
3443                     }else{
3444                         assert(FFABS(new_level)==1);
3445
3446                         if(analyze_gradient){
3447                             int g= d1[ scantable[i] ];
3448                             if(g && (g^new_level) >= 0)
3449                                 continue;
3450                         }
3451
3452                         if(i < last_non_zero){
3453                             int next_i= i + run2 + 1;
3454                             int next_level= block[ perm_scantable[next_i] ] + 64;
3455
3456                             if(next_level&(~127))
3457                                 next_level= 0;
3458
3459                             if(next_i < last_non_zero)
3460                                 score +=   length[UNI_AC_ENC_INDEX(run, 65)]
3461                                          + length[UNI_AC_ENC_INDEX(run2, next_level)]
3462                                          - length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3463                             else
3464                                 score +=  length[UNI_AC_ENC_INDEX(run, 65)]
3465                                         + last_length[UNI_AC_ENC_INDEX(run2, next_level)]
3466                                         - last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3467                         }else{
3468                             score += last_length[UNI_AC_ENC_INDEX(run, 65)];
3469                             if(prev_level){
3470                                 score +=  length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
3471                                         - last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
3472                             }
3473                         }
3474                     }
3475                 }else{
3476                     new_coeff=0;
3477                     assert(FFABS(level)==1);
3478
3479                     if(i < last_non_zero){
3480                         int next_i= i + run2 + 1;
3481                         int next_level= block[ perm_scantable[next_i] ] + 64;
3482
3483                         if(next_level&(~127))
3484                             next_level= 0;
3485
3486                         if(next_i < last_non_zero)
3487                             score +=   length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]
3488                                      - length[UNI_AC_ENC_INDEX(run2, next_level)]
3489                                      - length[UNI_AC_ENC_INDEX(run, 65)];
3490                         else
3491                             score +=   last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]
3492                                      - last_length[UNI_AC_ENC_INDEX(run2, next_level)]
3493                                      - length[UNI_AC_ENC_INDEX(run, 65)];
3494                     }else{
3495                         score += -last_length[UNI_AC_ENC_INDEX(run, 65)];
3496                         if(prev_level){
3497                             score +=  last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
3498                                     - length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
3499                         }
3500                     }
3501                 }
3502
3503                 score *= lambda;
3504
3505                 unquant_change= new_coeff - old_coeff;
3506                 assert((score < 100*lambda && score > -100*lambda) || lambda==0);
3507
3508                 score+= s->dsp.try_8x8basis(rem, weight, basis[j], unquant_change);
3509                 if(score<best_score){
3510                     best_score= score;
3511                     best_coeff= i;
3512                     best_change= change;
3513                     best_unquant_change= unquant_change;
3514                 }
3515             }
3516             if(level){
3517                 prev_level= level + 64;
3518                 if(prev_level&(~127))
3519                     prev_level= 0;
3520                 prev_run= run;
3521                 run=0;
3522             }else{
3523                 run++;
3524             }
3525         }
3526 #ifdef REFINE_STATS
3527 STOP_TIMER("iterative step")}
3528 #endif
3529
3530         if(best_change){
3531             int j= perm_scantable[ best_coeff ];
3532
3533             block[j] += best_change;
3534
3535             if(best_coeff > last_non_zero){
3536                 last_non_zero= best_coeff;
3537                 assert(block[j]);
3538 #ifdef REFINE_STATS
3539 after_last++;
3540 #endif
3541             }else{
3542 #ifdef REFINE_STATS
3543 if(block[j]){
3544     if(block[j] - best_change){
3545         if(FFABS(block[j]) > FFABS(block[j] - best_change)){
3546             raise++;
3547         }else{
3548             lower++;
3549         }
3550     }else{
3551         from_zero++;
3552     }
3553 }else{
3554     to_zero++;
3555 }
3556 #endif
3557                 for(; last_non_zero>=start_i; last_non_zero--){
3558                     if(block[perm_scantable[last_non_zero]])
3559                         break;
3560                 }
3561             }
3562 #ifdef REFINE_STATS
3563 count++;
3564 if(256*256*256*64 % count == 0){
3565     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);
3566 }
3567 #endif
3568             run=0;
3569             rle_index=0;
3570             for(i=start_i; i<=last_non_zero; i++){
3571                 int j= perm_scantable[i];
3572                 const int level= block[j];
3573
3574                  if(level){
3575                      run_tab[rle_index++]=run;
3576                      run=0;
3577                  }else{
3578                      run++;
3579                  }
3580             }
3581
3582             s->dsp.add_8x8basis(rem, basis[j], best_unquant_change);
3583         }else{
3584             break;
3585         }
3586     }
3587 #ifdef REFINE_STATS
3588 if(last_non_zero>0){
3589 STOP_TIMER("iterative search")
3590 }
3591 }
3592 #endif
3593
3594     return last_non_zero;
3595 }
3596
3597 int dct_quantize_c(MpegEncContext *s,
3598                         DCTELEM *block, int n,
3599                         int qscale, int *overflow)
3600 {
3601     int i, j, level, last_non_zero, q, start_i;
3602     const int *qmat;
3603     const uint8_t *scantable= s->intra_scantable.scantable;
3604     int bias;
3605     int max=0;
3606     unsigned int threshold1, threshold2;
3607
3608     s->dsp.fdct (block);
3609
3610     if(s->dct_error_sum)
3611         s->denoise_dct(s, block);
3612
3613     if (s->mb_intra) {
3614         if (!s->h263_aic) {
3615             if (n < 4)
3616                 q = s->y_dc_scale;
3617             else
3618                 q = s->c_dc_scale;
3619             q = q << 3;
3620         } else
3621             /* For AIC we skip quant/dequant of INTRADC */
3622             q = 1 << 3;
3623
3624         /* note: block[0] is assumed to be positive */
3625         block[0] = (block[0] + (q >> 1)) / q;
3626         start_i = 1;
3627         last_non_zero = 0;
3628         qmat = s->q_intra_matrix[qscale];
3629         bias= s->intra_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
3630     } else {
3631         start_i = 0;
3632         last_non_zero = -1;
3633         qmat = s->q_inter_matrix[qscale];
3634         bias= s->inter_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
3635     }
3636     threshold1= (1<<QMAT_SHIFT) - bias - 1;
3637     threshold2= (threshold1<<1);
3638     for(i=63;i>=start_i;i--) {
3639         j = scantable[i];
3640         level = block[j] * qmat[j];
3641
3642         if(((unsigned)(level+threshold1))>threshold2){
3643             last_non_zero = i;
3644             break;
3645         }else{
3646             block[j]=0;
3647         }
3648     }
3649     for(i=start_i; i<=last_non_zero; i++) {
3650         j = scantable[i];
3651         level = block[j] * qmat[j];
3652
3653 //        if(   bias+level >= (1<<QMAT_SHIFT)
3654 //           || bias-level >= (1<<QMAT_SHIFT)){
3655         if(((unsigned)(level+threshold1))>threshold2){
3656             if(level>0){
3657                 level= (bias + level)>>QMAT_SHIFT;
3658                 block[j]= level;
3659             }else{
3660                 level= (bias - level)>>QMAT_SHIFT;
3661                 block[j]= -level;
3662             }
3663             max |=level;
3664         }else{
3665             block[j]=0;
3666         }
3667     }
3668     *overflow= s->max_qcoeff < max; //overflow might have happened
3669
3670     /* we need this permutation so that we correct the IDCT, we only permute the !=0 elements */
3671     if (s->dsp.idct_permutation_type != FF_NO_IDCT_PERM)
3672         ff_block_permute(block, s->dsp.idct_permutation, scantable, last_non_zero);
3673
3674     return last_non_zero;
3675 }
3676
3677 AVCodec h263_encoder = {
3678     "h263",
3679     CODEC_TYPE_VIDEO,
3680     CODEC_ID_H263,
3681     sizeof(MpegEncContext),
3682     MPV_encode_init,
3683     MPV_encode_picture,
3684     MPV_encode_end,
3685     .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3686 };
3687
3688 AVCodec h263p_encoder = {
3689     "h263p",
3690     CODEC_TYPE_VIDEO,
3691     CODEC_ID_H263P,
3692     sizeof(MpegEncContext),
3693     MPV_encode_init,
3694     MPV_encode_picture,
3695     MPV_encode_end,
3696     .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3697 };
3698
3699 AVCodec flv_encoder = {
3700     "flv",
3701     CODEC_TYPE_VIDEO,
3702     CODEC_ID_FLV1,
3703     sizeof(MpegEncContext),
3704     MPV_encode_init,
3705     MPV_encode_picture,
3706     MPV_encode_end,
3707     .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3708 };
3709
3710 AVCodec rv10_encoder = {
3711     "rv10",
3712     CODEC_TYPE_VIDEO,
3713     CODEC_ID_RV10,
3714     sizeof(MpegEncContext),
3715     MPV_encode_init,
3716     MPV_encode_picture,
3717     MPV_encode_end,
3718     .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3719 };
3720
3721 AVCodec rv20_encoder = {
3722     "rv20",
3723     CODEC_TYPE_VIDEO,
3724     CODEC_ID_RV20,
3725     sizeof(MpegEncContext),
3726     MPV_encode_init,
3727     MPV_encode_picture,
3728     MPV_encode_end,
3729     .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3730 };
3731
3732 AVCodec mpeg4_encoder = {
3733     "mpeg4",
3734     CODEC_TYPE_VIDEO,
3735     CODEC_ID_MPEG4,
3736     sizeof(MpegEncContext),
3737     MPV_encode_init,
3738     MPV_encode_picture,
3739     MPV_encode_end,
3740     .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3741     .capabilities= CODEC_CAP_DELAY,
3742 };
3743
3744 AVCodec msmpeg4v1_encoder = {
3745     "msmpeg4v1",
3746     CODEC_TYPE_VIDEO,
3747     CODEC_ID_MSMPEG4V1,
3748     sizeof(MpegEncContext),
3749     MPV_encode_init,
3750     MPV_encode_picture,
3751     MPV_encode_end,
3752     .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3753 };
3754
3755 AVCodec msmpeg4v2_encoder = {
3756     "msmpeg4v2",
3757     CODEC_TYPE_VIDEO,
3758     CODEC_ID_MSMPEG4V2,
3759     sizeof(MpegEncContext),
3760     MPV_encode_init,
3761     MPV_encode_picture,
3762     MPV_encode_end,
3763     .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3764 };
3765
3766 AVCodec msmpeg4v3_encoder = {
3767     "msmpeg4",
3768     CODEC_TYPE_VIDEO,
3769     CODEC_ID_MSMPEG4V3,
3770     sizeof(MpegEncContext),
3771     MPV_encode_init,
3772     MPV_encode_picture,
3773     MPV_encode_end,
3774     .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3775 };
3776
3777 AVCodec wmv1_encoder = {
3778     "wmv1",
3779     CODEC_TYPE_VIDEO,
3780     CODEC_ID_WMV1,
3781     sizeof(MpegEncContext),
3782     MPV_encode_init,
3783     MPV_encode_picture,
3784     MPV_encode_end,
3785     .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3786 };