git.sesse.net Git - x264/blob - encoder/encoder.c

   1 /*****************************************************************************
   2  * x264: h264 encoder
   3  *****************************************************************************
   4  * Copyright (C) 2003 Laurent Aimar
   5  * $Id: encoder.c,v 1.1 2004/06/03 19:27:08 fenrir Exp $
   6  *
   7  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  22  *****************************************************************************/
  23
  24 #include <stdio.h>
  25 #include <string.h>
  26 #include <math.h>
  27
  28 #include "common/common.h"
  29 #include "common/cpu.h"
  30
  31 #include "set.h"
  32 #include "analyse.h"
  33 #include "ratecontrol.h"
  34 #include "macroblock.h"
  35
  36 #if VISUALIZE
  37 #include "common/visualize.h"
  38 #endif
  39
  40 //#define DEBUG_MB_TYPE
  41 //#define DEBUG_DUMP_FRAME
  42 //#define DEBUG_BENCHMARK
  43
  44 #ifdef DEBUG_BENCHMARK
  45 static int64_t i_mtime_encode_frame = 0;
  46 static int64_t i_mtime_analyse = 0;
  47 static int64_t i_mtime_encode = 0;
  48 static int64_t i_mtime_write = 0;
  49 static int64_t i_mtime_filter = 0;
  50 #define TIMER_START( d ) \
  51     { \
  52         int64_t d##start = x264_mdate();
  53
  54 #define TIMER_STOP( d ) \
  55         d += x264_mdate() - d##start;\
  56     }
  57 #else
  58 #define TIMER_START( d )
  59 #define TIMER_STOP( d )
  60 #endif
  61
  62 #define NALU_OVERHEAD 5 // startcode + NAL type costs 5 bytes per frame
  63
  64 /****************************************************************************
  65  *
  66  ******************************* x264 libs **********************************
  67  *
  68  ****************************************************************************/
  69 static float x264_psnr( int64_t i_sqe, int64_t i_size )
  70 {
  71     double f_mse = (double)i_sqe / ((double)65025.0 * (double)i_size);
  72     if( f_mse <= 0.0000000001 ) /* Max 100dB */
  73         return 100;
  74
  75     return (float)(-10.0 * log( f_mse ) / log( 10.0 ));
  76 }
  77
  78 #ifdef DEBUG_DUMP_FRAME
  79 static void x264_frame_dump( x264_t *h, x264_frame_t *fr, char *name )
  80 {
  81     FILE *f = fopen( name, "r+b" );
  82     int i, y;
  83     if( !f )
  84         return;
  85
  86     /* Write the frame in display order */
  87     fseek( f, fr->i_frame * h->param.i_height * h->param.i_width * 3 / 2, SEEK_SET );
  88
  89     for( i = 0; i < fr->i_plane; i++ )
  90     {
  91         for( y = 0; y < h->param.i_height / ( i == 0 ? 1 : 2 ); y++ )
  92         {
  93             fwrite( &fr->plane[i][y*fr->i_stride[i]], 1, h->param.i_width / ( i == 0 ? 1 : 2 ), f );
  94         }
  95     }
  96     fclose( f );
  97 }
  98 #endif
  99
 100
 101 /* Fill "default" values */
 102 static void x264_slice_header_init( x264_t *h, x264_slice_header_t *sh,
 103                                     x264_sps_t *sps, x264_pps_t *pps,
 104                                     int i_type, int i_idr_pic_id, int i_frame, int i_qp )
 105 {
 106     x264_param_t *param = &h->param;
 107     int i;
 108
 109     /* First we fill all field */
 110     sh->sps = sps;
 111     sh->pps = pps;
 112
 113     sh->i_type      = i_type;
 114     sh->i_first_mb  = 0;
 115     sh->i_last_mb   = h->sps->i_mb_width * h->sps->i_mb_height;
 116     sh->i_pps_id    = pps->i_id;
 117
 118     sh->i_frame_num = i_frame;
 119
 120     sh->b_field_pic = 0;    /* Not field support for now */
 121     sh->b_bottom_field = 1; /* not yet used */
 122
 123     sh->i_idr_pic_id = i_idr_pic_id;
 124
 125     /* poc stuff, fixed later */
 126     sh->i_poc_lsb = 0;
 127     sh->i_delta_poc_bottom = 0;
 128     sh->i_delta_poc[0] = 0;
 129     sh->i_delta_poc[1] = 0;
 130
 131     sh->i_redundant_pic_cnt = 0;
 132
 133     if( !h->mb.b_direct_auto_read )
 134     {
 135         if( h->mb.b_direct_auto_write )
 136             sh->b_direct_spatial_mv_pred = ( h->stat.i_direct_score[1] > h->stat.i_direct_score[0] );
 137         else
 138             sh->b_direct_spatial_mv_pred = ( param->analyse.i_direct_mv_pred == X264_DIRECT_PRED_SPATIAL );
 139     }
 140     /* else b_direct_spatial_mv_pred was read from the 2pass statsfile */
 141
 142     sh->b_num_ref_idx_override = 0;
 143     sh->i_num_ref_idx_l0_active = 1;
 144     sh->i_num_ref_idx_l1_active = 1;
 145
 146     sh->b_ref_pic_list_reordering_l0 = h->b_ref_reorder[0];
 147     sh->b_ref_pic_list_reordering_l1 = h->b_ref_reorder[1];
 148
 149     /* If the ref list isn't in the default order, construct reordering header */
 150     /* List1 reordering isn't needed yet */
 151     if( sh->b_ref_pic_list_reordering_l0 )
 152     {
 153         int pred_frame_num = i_frame;
 154         for( i = 0; i < h->i_ref0; i++ )
 155         {
 156             int diff = h->fref0[i]->i_frame_num - pred_frame_num;
 157             if( diff == 0 )
 158                 x264_log( h, X264_LOG_ERROR, "diff frame num == 0\n" );
 159             sh->ref_pic_list_order[0][i].idc = ( diff > 0 );
 160             sh->ref_pic_list_order[0][i].arg = abs( diff ) - 1;
 161             pred_frame_num = h->fref0[i]->i_frame_num;
 162         }
 163     }
 164
 165     sh->i_cabac_init_idc = param->i_cabac_init_idc;
 166
 167     sh->i_qp = i_qp;
 168     sh->i_qp_delta = i_qp - pps->i_pic_init_qp;
 169     sh->b_sp_for_swidth = 0;
 170     sh->i_qs_delta = 0;
 171
 172     /* If effective qp <= 15, deblocking would have no effect anyway */
 173     if( param->b_deblocking_filter
 174         && ( h->mb.b_variable_qp
 175         || 15 < i_qp + 2 * X264_MAX(param->i_deblocking_filter_alphac0, param->i_deblocking_filter_beta) ) )
 176     {
 177         sh->i_disable_deblocking_filter_idc = 0;
 178     }
 179     else
 180     {
 181         sh->i_disable_deblocking_filter_idc = 1;
 182     }
 183     sh->i_alpha_c0_offset = param->i_deblocking_filter_alphac0 << 1;
 184     sh->i_beta_offset = param->i_deblocking_filter_beta << 1;
 185 }
 186
 187 static void x264_slice_header_write( bs_t *s, x264_slice_header_t *sh, int i_nal_ref_idc )
 188 {
 189     int i;
 190
 191     bs_write_ue( s, sh->i_first_mb );
 192     bs_write_ue( s, sh->i_type + 5 );   /* same type things */
 193     bs_write_ue( s, sh->i_pps_id );
 194     bs_write( s, sh->sps->i_log2_max_frame_num, sh->i_frame_num );
 195
 196     if( sh->i_idr_pic_id >= 0 ) /* NAL IDR */
 197     {
 198         bs_write_ue( s, sh->i_idr_pic_id );
 199     }
 200
 201     if( sh->sps->i_poc_type == 0 )
 202     {
 203         bs_write( s, sh->sps->i_log2_max_poc_lsb, sh->i_poc_lsb );
 204         if( sh->pps->b_pic_order && !sh->b_field_pic )
 205         {
 206             bs_write_se( s, sh->i_delta_poc_bottom );
 207         }
 208     }
 209     else if( sh->sps->i_poc_type == 1 && !sh->sps->b_delta_pic_order_always_zero )
 210     {
 211         bs_write_se( s, sh->i_delta_poc[0] );
 212         if( sh->pps->b_pic_order && !sh->b_field_pic )
 213         {
 214             bs_write_se( s, sh->i_delta_poc[1] );
 215         }
 216     }
 217
 218     if( sh->pps->b_redundant_pic_cnt )
 219     {
 220         bs_write_ue( s, sh->i_redundant_pic_cnt );
 221     }
 222
 223     if( sh->i_type == SLICE_TYPE_B )
 224     {
 225         bs_write1( s, sh->b_direct_spatial_mv_pred );
 226     }
 227     if( sh->i_type == SLICE_TYPE_P || sh->i_type == SLICE_TYPE_SP || sh->i_type == SLICE_TYPE_B )
 228     {
 229         bs_write1( s, sh->b_num_ref_idx_override );
 230         if( sh->b_num_ref_idx_override )
 231         {
 232             bs_write_ue( s, sh->i_num_ref_idx_l0_active - 1 );
 233             if( sh->i_type == SLICE_TYPE_B )
 234             {
 235                 bs_write_ue( s, sh->i_num_ref_idx_l1_active - 1 );
 236             }
 237         }
 238     }
 239
 240     /* ref pic list reordering */
 241     if( sh->i_type != SLICE_TYPE_I )
 242     {
 243         bs_write1( s, sh->b_ref_pic_list_reordering_l0 );
 244         if( sh->b_ref_pic_list_reordering_l0 )
 245         {
 246             for( i = 0; i < sh->i_num_ref_idx_l0_active; i++ )
 247             {
 248                 bs_write_ue( s, sh->ref_pic_list_order[0][i].idc );
 249                 bs_write_ue( s, sh->ref_pic_list_order[0][i].arg );
 250
 251             }
 252             bs_write_ue( s, 3 );
 253         }
 254     }
 255     if( sh->i_type == SLICE_TYPE_B )
 256     {
 257         bs_write1( s, sh->b_ref_pic_list_reordering_l1 );
 258         if( sh->b_ref_pic_list_reordering_l1 )
 259         {
 260             for( i = 0; i < sh->i_num_ref_idx_l1_active; i++ )
 261             {
 262                 bs_write_ue( s, sh->ref_pic_list_order[1][i].idc );
 263                 bs_write_ue( s, sh->ref_pic_list_order[1][i].arg );
 264             }
 265             bs_write_ue( s, 3 );
 266         }
 267     }
 268
 269     if( ( sh->pps->b_weighted_pred && ( sh->i_type == SLICE_TYPE_P || sh->i_type == SLICE_TYPE_SP ) ) ||
 270         ( sh->pps->b_weighted_bipred == 1 && sh->i_type == SLICE_TYPE_B ) )
 271     {
 272         /* FIXME */
 273     }
 274
 275     if( i_nal_ref_idc != 0 )
 276     {
 277         if( sh->i_idr_pic_id >= 0 )
 278         {
 279             bs_write1( s, 0 );  /* no output of prior pics flag */
 280             bs_write1( s, 0 );  /* long term reference flag */
 281         }
 282         else
 283         {
 284             bs_write1( s, 0 );  /* adaptive_ref_pic_marking_mode_flag */
 285         }
 286     }
 287
 288     if( sh->pps->b_cabac && sh->i_type != SLICE_TYPE_I )
 289     {
 290         bs_write_ue( s, sh->i_cabac_init_idc );
 291     }
 292     bs_write_se( s, sh->i_qp_delta );      /* slice qp delta */
 293
 294     if( sh->pps->b_deblocking_filter_control )
 295     {
 296         bs_write_ue( s, sh->i_disable_deblocking_filter_idc );
 297         if( sh->i_disable_deblocking_filter_idc != 1 )
 298         {
 299             bs_write_se( s, sh->i_alpha_c0_offset >> 1 );
 300             bs_write_se( s, sh->i_beta_offset >> 1 );
 301         }
 302     }
 303 }
 304
 305 /****************************************************************************
 306  *
 307  ****************************************************************************
 308  ****************************** External API*********************************
 309  ****************************************************************************
 310  *
 311  ****************************************************************************/
 312
 313 static int x264_validate_parameters( x264_t *h )
 314 {
 315     if( h->param.i_width <= 0 || h->param.i_height <= 0 )
 316     {
 317         x264_log( h, X264_LOG_ERROR, "invalid width x height (%dx%d)\n",
 318                   h->param.i_width, h->param.i_height );
 319         return -1;
 320     }
 321
 322     if( h->param.i_width % 2 || h->param.i_height % 2 )
 323     {
 324         x264_log( h, X264_LOG_ERROR, "width or height not divisible by 2 (%dx%d)\n",
 325                   h->param.i_width, h->param.i_height );
 326         return -1;
 327     }
 328     if( h->param.i_csp != X264_CSP_I420 )
 329     {
 330         x264_log( h, X264_LOG_ERROR, "invalid CSP (only I420 supported)\n" );
 331         return -1;
 332     }
 333
 334     h->param.i_threads = x264_clip3( h->param.i_threads, 1, X264_SLICE_MAX );
 335     h->param.i_threads = X264_MIN( h->param.i_threads, (h->param.i_height + 15) / 16 );
 336 #ifndef HAVE_PTHREAD
 337     if( h->param.i_threads > 1 )
 338     {
 339         x264_log( h, X264_LOG_WARNING, "not compiled with pthread support!\n");
 340         x264_log( h, X264_LOG_WARNING, "multislicing anyway, but you won't see any speed gain.\n" );
 341     }
 342 #endif
 343
 344     if( h->param.rc.b_cbr )
 345         h->param.rc.i_rf_constant = 0;
 346     if( h->param.rc.i_rf_constant > 0 )
 347         h->param.rc.i_qp_constant = h->param.rc.i_rf_constant;
 348     h->param.rc.i_rf_constant = x264_clip3( h->param.rc.i_rf_constant, 0, 51 );
 349     h->param.rc.i_qp_constant = x264_clip3( h->param.rc.i_qp_constant, 0, 51 );
 350     if( !h->param.rc.b_cbr && h->param.rc.i_qp_constant == 0 )
 351     {
 352         h->mb.b_lossless = 1;
 353         h->param.analyse.b_transform_8x8 = 0;
 354         h->param.i_cqm_preset = X264_CQM_FLAT;
 355         h->param.psz_cqm_file = NULL;
 356         h->param.rc.f_ip_factor = 1;
 357         h->param.rc.f_pb_factor = 1;
 358         h->param.analyse.b_psnr = 0;
 359         h->param.analyse.i_chroma_qp_offset = 0;
 360         h->param.analyse.i_trellis = 0;
 361         h->param.analyse.b_fast_pskip = 0;
 362         h->param.analyse.i_noise_reduction = 0;
 363         h->param.analyse.i_subpel_refine = x264_clip3( h->param.analyse.i_subpel_refine, 1, 6 );
 364     }
 365
 366     if( ( h->param.i_width % 16 || h->param.i_height % 16 ) && !h->mb.b_lossless )
 367     {
 368         x264_log( h, X264_LOG_WARNING,
 369                   "width or height not divisible by 16 (%dx%d), compression will suffer.\n",
 370                   h->param.i_width, h->param.i_height );
 371     }
 372
 373     h->param.i_frame_reference = x264_clip3( h->param.i_frame_reference, 1, 16 );
 374     if( h->param.i_keyint_max <= 0 )
 375         h->param.i_keyint_max = 1;
 376     h->param.i_keyint_min = x264_clip3( h->param.i_keyint_min, 1, h->param.i_keyint_max/2+1 );
 377
 378     h->param.i_bframe = x264_clip3( h->param.i_bframe, 0, X264_BFRAME_MAX );
 379     h->param.i_bframe_bias = x264_clip3( h->param.i_bframe_bias, -90, 100 );
 380     h->param.b_bframe_pyramid = h->param.b_bframe_pyramid && h->param.i_bframe > 1;
 381     h->param.b_bframe_adaptive = h->param.b_bframe_adaptive && h->param.i_bframe > 0;
 382     h->param.analyse.b_weighted_bipred = h->param.analyse.b_weighted_bipred && h->param.i_bframe > 0;
 383     h->mb.b_direct_auto_write = h->param.analyse.i_direct_mv_pred == X264_DIRECT_PRED_AUTO
 384                                 && h->param.i_bframe
 385                                 && ( h->param.rc.b_stat_write || !h->param.rc.b_stat_read );
 386
 387     h->param.i_deblocking_filter_alphac0 = x264_clip3( h->param.i_deblocking_filter_alphac0, -6, 6 );
 388     h->param.i_deblocking_filter_beta    = x264_clip3( h->param.i_deblocking_filter_beta, -6, 6 );
 389
 390     h->param.i_cabac_init_idc = x264_clip3( h->param.i_cabac_init_idc, 0, 2 );
 391
 392     if( h->param.i_cqm_preset < X264_CQM_FLAT || h->param.i_cqm_preset > X264_CQM_CUSTOM )
 393         h->param.i_cqm_preset = X264_CQM_FLAT;
 394
 395     if( h->param.analyse.i_me_method < X264_ME_DIA ||
 396         h->param.analyse.i_me_method > X264_ME_ESA )
 397         h->param.analyse.i_me_method = X264_ME_HEX;
 398     if( h->param.analyse.i_me_range < 4 )
 399         h->param.analyse.i_me_range = 4;
 400     if( h->param.analyse.i_me_range > 16 && h->param.analyse.i_me_method <= X264_ME_HEX )
 401         h->param.analyse.i_me_range = 16;
 402     h->param.analyse.i_subpel_refine = x264_clip3( h->param.analyse.i_subpel_refine, 1, 7 );
 403     h->param.analyse.b_bframe_rdo = h->param.analyse.b_bframe_rdo && h->param.analyse.i_subpel_refine >= 6;
 404     h->param.analyse.b_mixed_references = h->param.analyse.b_mixed_references && h->param.i_frame_reference > 1;
 405     h->param.analyse.inter &= X264_ANALYSE_PSUB16x16|X264_ANALYSE_PSUB8x8|X264_ANALYSE_BSUB16x16|
 406                               X264_ANALYSE_I4x4|X264_ANALYSE_I8x8;
 407     h->param.analyse.intra &= X264_ANALYSE_I4x4|X264_ANALYSE_I8x8;
 408     if( !(h->param.analyse.inter & X264_ANALYSE_PSUB16x16) )
 409         h->param.analyse.inter &= ~X264_ANALYSE_PSUB8x8;
 410     if( !h->param.analyse.b_transform_8x8 )
 411     {
 412         h->param.analyse.inter &= ~X264_ANALYSE_I8x8;
 413         h->param.analyse.intra &= ~X264_ANALYSE_I8x8;
 414     }
 415     h->param.analyse.i_chroma_qp_offset = x264_clip3(h->param.analyse.i_chroma_qp_offset, -12, 12);
 416     if( !h->param.b_cabac )
 417         h->param.analyse.i_trellis = 0;
 418     h->param.analyse.i_trellis = x264_clip3( h->param.analyse.i_trellis, 0, 2 );
 419     h->param.analyse.i_noise_reduction = x264_clip3( h->param.analyse.i_noise_reduction, 0, 1<<16 );
 420
 421     {
 422         const x264_level_t *l = x264_levels;
 423         while( l->level_idc != 0 && l->level_idc != h->param.i_level_idc )
 424             l++;
 425         if( l->level_idc == 0 )
 426         {
 427             x264_log( h, X264_LOG_ERROR, "invalid level_idc: %d\n", h->param.i_level_idc );
 428             return -1;
 429         }
 430         if( h->param.analyse.i_mv_range <= 0 )
 431             h->param.analyse.i_mv_range = l->mv_range;
 432         else
 433             h->param.analyse.i_mv_range = x264_clip3(h->param.analyse.i_mv_range, 32, 2048);
 434     }
 435
 436     if( h->param.rc.f_qblur < 0 )
 437         h->param.rc.f_qblur = 0;
 438     if( h->param.rc.f_complexity_blur < 0 )
 439         h->param.rc.f_complexity_blur = 0;
 440
 441     h->param.i_sps_id &= 31;
 442
 443     /* ensure the booleans are 0 or 1 so they can be used in math */
 444 #define BOOLIFY(x) h->param.x = !!h->param.x
 445     BOOLIFY( b_cabac );
 446     BOOLIFY( b_deblocking_filter );
 447     BOOLIFY( analyse.b_transform_8x8 );
 448     BOOLIFY( analyse.b_bidir_me );
 449     BOOLIFY( analyse.b_chroma_me );
 450     BOOLIFY( analyse.b_fast_pskip );
 451     BOOLIFY( rc.b_cbr );
 452     BOOLIFY( rc.b_stat_write );
 453     BOOLIFY( rc.b_stat_read );
 454 #undef BOOLIFY
 455
 456     return 0;
 457 }
 458
 459 /****************************************************************************
 460  * x264_encoder_open:
 461  ****************************************************************************/
 462 x264_t *x264_encoder_open   ( x264_param_t *param )
 463 {
 464     x264_t *h = x264_malloc( sizeof( x264_t ) );
 465     int i;
 466
 467     memset( h, 0, sizeof( x264_t ) );
 468
 469     /* Create a copy of param */
 470     memcpy( &h->param, param, sizeof( x264_param_t ) );
 471
 472     if( x264_validate_parameters( h ) < 0 )
 473     {
 474         x264_free( h );
 475         return NULL;
 476     }
 477
 478     if( h->param.psz_cqm_file )
 479         if( x264_cqm_parse_file( h, h->param.psz_cqm_file ) < 0 )
 480         {
 481             x264_free( h );
 482             return NULL;
 483         }
 484
 485     if( h->param.rc.psz_stat_out )
 486         h->param.rc.psz_stat_out = strdup( h->param.rc.psz_stat_out );
 487     if( h->param.rc.psz_stat_in )
 488         h->param.rc.psz_stat_in = strdup( h->param.rc.psz_stat_in );
 489     if( h->param.rc.psz_rc_eq )
 490         h->param.rc.psz_rc_eq = strdup( h->param.rc.psz_rc_eq );
 491
 492     /* VUI */
 493     if( h->param.vui.i_sar_width > 0 && h->param.vui.i_sar_height > 0 )
 494     {
 495         int i_w = param->vui.i_sar_width;
 496         int i_h = param->vui.i_sar_height;
 497
 498         x264_reduce_fraction( &i_w, &i_h );
 499
 500         while( i_w > 65535 || i_h > 65535 )
 501         {
 502             i_w /= 2;
 503             i_h /= 2;
 504         }
 505
 506         h->param.vui.i_sar_width = 0;
 507         h->param.vui.i_sar_height = 0;
 508         if( i_w == 0 || i_h == 0 )
 509         {
 510             x264_log( h, X264_LOG_ERROR, "cannot create valid sample aspect ratio\n" );
 511         }
 512         else
 513         {
 514             x264_log( h, X264_LOG_INFO, "using SAR=%d/%d\n", i_w, i_h );
 515             h->param.vui.i_sar_width = i_w;
 516             h->param.vui.i_sar_height = i_h;
 517         }
 518     }
 519
 520     x264_reduce_fraction( &h->param.i_fps_num, &h->param.i_fps_den );
 521
 522     /* Init x264_t */
 523     h->out.i_nal = 0;
 524     h->out.i_bitstream = X264_MAX( 1000000, h->param.i_width * h->param.i_height * 1.7
 525         * ( h->param.rc.b_cbr ? pow( 0.5, h->param.rc.i_qp_min )
 526           : pow( 0.5, h->param.rc.i_qp_constant ) * X264_MAX( 1, h->param.rc.f_ip_factor )));
 527     h->out.p_bitstream = x264_malloc( h->out.i_bitstream );
 528
 529     h->i_frame = 0;
 530     h->i_frame_num = 0;
 531     h->i_idr_pic_id = 0;
 532
 533     h->sps = &h->sps_array[0];
 534     x264_sps_init( h->sps, h->param.i_sps_id, &h->param );
 535
 536     h->pps = &h->pps_array[0];
 537     x264_pps_init( h->pps, h->param.i_sps_id, &h->param, h->sps);
 538
 539     x264_validate_levels( h );
 540
 541     x264_cqm_init( h );
 542
 543     h->mb.i_mb_count = h->sps->i_mb_width * h->sps->i_mb_height;
 544
 545     /* Init frames. */
 546     h->frames.i_delay = h->param.i_bframe;
 547     h->frames.i_max_ref0 = h->param.i_frame_reference;
 548     h->frames.i_max_ref1 = h->sps->vui.i_num_reorder_frames;
 549     h->frames.i_max_dpb  = h->sps->vui.i_max_dec_frame_buffering + 1;
 550     h->frames.b_have_lowres = !h->param.rc.b_stat_read
 551         && ( h->param.rc.b_cbr || h->param.rc.i_rf_constant || h->param.b_bframe_adaptive );
 552
 553     for( i = 0; i < X264_BFRAME_MAX + 3; i++ )
 554     {
 555         h->frames.current[i] = NULL;
 556         h->frames.next[i]    = NULL;
 557         h->frames.unused[i]  = NULL;
 558     }
 559     for( i = 0; i < 1 + h->frames.i_delay; i++ )
 560     {
 561         h->frames.unused[i] =  x264_frame_new( h );
 562     }
 563     for( i = 0; i < h->frames.i_max_dpb; i++ )
 564     {
 565         h->frames.reference[i] = x264_frame_new( h );
 566     }
 567     h->frames.reference[h->frames.i_max_dpb] = NULL;
 568     h->frames.i_last_idr = - h->param.i_keyint_max;
 569     h->frames.i_input    = 0;
 570     h->frames.last_nonb  = NULL;
 571
 572     h->i_ref0 = 0;
 573     h->i_ref1 = 0;
 574
 575     h->fdec = h->frames.reference[0];
 576
 577     x264_macroblock_cache_init( h );
 578     x264_rdo_init( );
 579
 580     /* init CPU functions */
 581     x264_predict_16x16_init( h->param.cpu, h->predict_16x16 );
 582     x264_predict_8x8c_init( h->param.cpu, h->predict_8x8c );
 583     x264_predict_8x8_init( h->param.cpu, h->predict_8x8 );
 584     x264_predict_4x4_init( h->param.cpu, h->predict_4x4 );
 585
 586     x264_pixel_init( h->param.cpu, &h->pixf );
 587     x264_dct_init( h->param.cpu, &h->dctf );
 588     x264_mc_init( h->param.cpu, &h->mc );
 589     x264_csp_init( h->param.cpu, h->param.i_csp, &h->csp );
 590     x264_quant_init( h, h->param.cpu, &h->quantf );
 591     x264_deblock_init( h->param.cpu, &h->loopf );
 592
 593     memcpy( h->pixf.mbcmp,
 594             ( h->mb.b_lossless || h->param.analyse.i_subpel_refine <= 1 ) ? h->pixf.sad : h->pixf.satd,
 595             sizeof(h->pixf.mbcmp) );
 596
 597     /* rate control */
 598     if( x264_ratecontrol_new( h ) < 0 )
 599         return NULL;
 600
 601     x264_log( h, X264_LOG_INFO, "using cpu capabilities %s%s%s%s%s%s\n",
 602              param->cpu&X264_CPU_MMX ? "MMX " : "",
 603              param->cpu&X264_CPU_MMXEXT ? "MMXEXT " : "",
 604              param->cpu&X264_CPU_SSE ? "SSE " : "",
 605              param->cpu&X264_CPU_SSE2 ? "SSE2 " : "",
 606              param->cpu&X264_CPU_3DNOW ? "3DNow! " : "",
 607              param->cpu&X264_CPU_ALTIVEC ? "Altivec " : "" );
 608
 609     h->thread[0] = h;
 610     h->i_thread_num = 0;
 611     for( i = 1; i < param->i_threads; i++ )
 612         h->thread[i] = x264_malloc( sizeof(x264_t) );
 613
 614 #ifdef DEBUG_DUMP_FRAME
 615     {
 616         /* create or truncate the reconstructed video file */
 617         FILE *f = fopen( "fdec.yuv", "w" );
 618         if( f )
 619             fclose( f );
 620         else
 621         {
 622             x264_log( h, X264_LOG_ERROR, "can't write to fdec.yuv\n" );
 623             x264_free( h );
 624             return NULL;
 625         }
 626     }
 627 #endif
 628
 629     return h;
 630 }
 631
 632 /****************************************************************************
 633  * x264_encoder_reconfig:
 634  ****************************************************************************/
 635 int x264_encoder_reconfig( x264_t *h, x264_param_t *param )
 636 {
 637     h->param.i_bframe_bias = param->i_bframe_bias;
 638     h->param.i_deblocking_filter_alphac0 = param->i_deblocking_filter_alphac0;
 639     h->param.i_deblocking_filter_beta    = param->i_deblocking_filter_beta;
 640     h->param.analyse.i_me_method = param->analyse.i_me_method;
 641     h->param.analyse.i_me_range = param->analyse.i_me_range;
 642     h->param.analyse.i_subpel_refine = param->analyse.i_subpel_refine;
 643     h->param.analyse.i_trellis = param->analyse.i_trellis;
 644     h->param.analyse.intra = param->analyse.intra;
 645     h->param.analyse.inter = param->analyse.inter;
 646
 647     memcpy( h->pixf.mbcmp,
 648             ( h->mb.b_lossless || h->param.analyse.i_subpel_refine <= 1 ) ? h->pixf.sad : h->pixf.satd,
 649             sizeof(h->pixf.mbcmp) );
 650
 651     return x264_validate_parameters( h );
 652 }
 653
 654 /* internal usage */
 655 static void x264_nal_start( x264_t *h, int i_type, int i_ref_idc )
 656 {
 657     x264_nal_t *nal = &h->out.nal[h->out.i_nal];
 658
 659     nal->i_ref_idc = i_ref_idc;
 660     nal->i_type    = i_type;
 661
 662     bs_align_0( &h->out.bs );   /* not needed */
 663
 664     nal->i_payload= 0;
 665     nal->p_payload= &h->out.p_bitstream[bs_pos( &h->out.bs) / 8];
 666 }
 667 static void x264_nal_end( x264_t *h )
 668 {
 669     x264_nal_t *nal = &h->out.nal[h->out.i_nal];
 670
 671     bs_align_0( &h->out.bs );   /* not needed */
 672
 673     nal->i_payload = &h->out.p_bitstream[bs_pos( &h->out.bs)/8] - nal->p_payload;
 674
 675     h->out.i_nal++;
 676 }
 677
 678 /****************************************************************************
 679  * x264_encoder_headers:
 680  ****************************************************************************/
 681 int x264_encoder_headers( x264_t *h, x264_nal_t **pp_nal, int *pi_nal )
 682 {
 683     /* init bitstream context */
 684     h->out.i_nal = 0;
 685     bs_init( &h->out.bs, h->out.p_bitstream, h->out.i_bitstream );
 686
 687     /* Put SPS and PPS */
 688     if( h->i_frame == 0 )
 689     {
 690         /* identify ourself */
 691         x264_nal_start( h, NAL_SEI, NAL_PRIORITY_DISPOSABLE );
 692         x264_sei_version_write( h, &h->out.bs );
 693         x264_nal_end( h );
 694
 695         /* generate sequence parameters */
 696         x264_nal_start( h, NAL_SPS, NAL_PRIORITY_HIGHEST );
 697         x264_sps_write( &h->out.bs, h->sps );
 698         x264_nal_end( h );
 699
 700         /* generate picture parameters */
 701         x264_nal_start( h, NAL_PPS, NAL_PRIORITY_HIGHEST );
 702         x264_pps_write( &h->out.bs, h->pps );
 703         x264_nal_end( h );
 704     }
 705     /* now set output*/
 706     *pi_nal = h->out.i_nal;
 707     *pp_nal = &h->out.nal[0];
 708
 709     return 0;
 710 }
 711
 712
 713 static void x264_frame_put( x264_frame_t *list[X264_BFRAME_MAX], x264_frame_t *frame )
 714 {
 715     int i = 0;
 716     while( list[i] ) i++;
 717     list[i] = frame;
 718 }
 719
 720 static void x264_frame_push( x264_frame_t *list[X264_BFRAME_MAX], x264_frame_t *frame )
 721 {
 722     int i = 0;
 723     while( list[i] ) i++;
 724     while( i-- )
 725         list[i+1] = list[i];
 726     list[0] = frame;
 727 }
 728
 729 static x264_frame_t *x264_frame_get( x264_frame_t *list[X264_BFRAME_MAX+1] )
 730 {
 731     x264_frame_t *frame = list[0];
 732     int i;
 733     for( i = 0; list[i]; i++ )
 734         list[i] = list[i+1];
 735     return frame;
 736 }
 737
 738 static void x264_frame_sort( x264_frame_t *list[X264_BFRAME_MAX+1], int b_dts )
 739 {
 740     int i, b_ok;
 741     do {
 742         b_ok = 1;
 743         for( i = 0; list[i+1]; i++ )
 744         {
 745             int dtype = list[i]->i_type - list[i+1]->i_type;
 746             int dtime = list[i]->i_frame - list[i+1]->i_frame;
 747             int swap = b_dts ? dtype > 0 || ( dtype == 0 && dtime > 0 )
 748                              : dtime > 0;
 749             if( swap )
 750             {
 751                 XCHG( x264_frame_t*, list[i], list[i+1] );
 752                 b_ok = 0;
 753             }
 754         }
 755     } while( !b_ok );
 756 }
 757 #define x264_frame_sort_dts(list) x264_frame_sort(list, 1)
 758 #define x264_frame_sort_pts(list) x264_frame_sort(list, 0)
 759
 760 static inline void x264_reference_build_list( x264_t *h, int i_poc, int i_slice_type )
 761 {
 762     int i;
 763     int b_ok;
 764
 765     /* build ref list 0/1 */
 766     h->i_ref0 = 0;
 767     h->i_ref1 = 0;
 768     for( i = 1; i < h->frames.i_max_dpb; i++ )
 769     {
 770         if( h->frames.reference[i]->i_poc >= 0 )
 771         {
 772             if( h->frames.reference[i]->i_poc < i_poc )
 773             {
 774                 h->fref0[h->i_ref0++] = h->frames.reference[i];
 775             }
 776             else if( h->frames.reference[i]->i_poc > i_poc )
 777             {
 778                 h->fref1[h->i_ref1++] = h->frames.reference[i];
 779             }
 780         }
 781     }
 782
 783     /* Order ref0 from higher to lower poc */
 784     do
 785     {
 786         b_ok = 1;
 787         for( i = 0; i < h->i_ref0 - 1; i++ )
 788         {
 789             if( h->fref0[i]->i_poc < h->fref0[i+1]->i_poc )
 790             {
 791                 XCHG( x264_frame_t*, h->fref0[i], h->fref0[i+1] );
 792                 b_ok = 0;
 793                 break;
 794             }
 795         }
 796     } while( !b_ok );
 797     /* Order ref1 from lower to higher poc (bubble sort) for B-frame */
 798     do
 799     {
 800         b_ok = 1;
 801         for( i = 0; i < h->i_ref1 - 1; i++ )
 802         {
 803             if( h->fref1[i]->i_poc > h->fref1[i+1]->i_poc )
 804             {
 805                 XCHG( x264_frame_t*, h->fref1[i], h->fref1[i+1] );
 806                 b_ok = 0;
 807                 break;
 808             }
 809         }
 810     } while( !b_ok );
 811
 812     /* In the standard, a P-frame's ref list is sorted by frame_num.
 813      * We use POC, but check whether explicit reordering is needed */
 814     h->b_ref_reorder[0] =
 815     h->b_ref_reorder[1] = 0;
 816     if( i_slice_type == SLICE_TYPE_P )
 817     {
 818         for( i = 0; i < h->i_ref0 - 1; i++ )
 819             if( h->fref0[i]->i_frame_num < h->fref0[i+1]->i_frame_num )
 820             {
 821                 h->b_ref_reorder[0] = 1;
 822                 break;
 823             }
 824     }
 825
 826     h->i_ref1 = X264_MIN( h->i_ref1, h->frames.i_max_ref1 );
 827     h->i_ref0 = X264_MIN( h->i_ref0, h->frames.i_max_ref0 );
 828     h->i_ref0 = X264_MIN( h->i_ref0, 16 - h->i_ref1 );
 829 }
 830
 831 static inline void x264_fdec_deblock( x264_t *h )
 832 {
 833     /* apply deblocking filter to the current decoded picture */
 834     if( !h->sh.i_disable_deblocking_filter_idc )
 835     {
 836         TIMER_START( i_mtime_filter );
 837         x264_frame_deblocking_filter( h, h->sh.i_type );
 838         TIMER_STOP( i_mtime_filter );
 839     }
 840 }
 841
 842 static inline void x264_reference_update( x264_t *h )
 843 {
 844     int i;
 845
 846     x264_fdec_deblock( h );
 847
 848     /* expand border */
 849     x264_frame_expand_border( h->fdec );
 850
 851     /* create filtered images */
 852     x264_frame_filter( h->param.cpu, h->fdec );
 853
 854     /* expand border of filtered images */
 855     x264_frame_expand_border_filtered( h->fdec );
 856
 857     /* move lowres copy of the image to the ref frame */
 858     for( i = 0; i < 4; i++)
 859         XCHG( uint8_t*, h->fdec->lowres[i], h->fenc->lowres[i] );
 860
 861     /* adaptive B decision needs a pointer, since it can't use the ref lists */
 862     if( h->sh.i_type != SLICE_TYPE_B )
 863         h->frames.last_nonb = h->fdec;
 864
 865     /* move frame in the buffer */
 866     h->fdec = h->frames.reference[h->frames.i_max_dpb-1];
 867     for( i = h->frames.i_max_dpb-1; i > 0; i-- )
 868     {
 869         h->frames.reference[i] = h->frames.reference[i-1];
 870     }
 871     h->frames.reference[0] = h->fdec;
 872 }
 873
 874 static inline void x264_reference_reset( x264_t *h )
 875 {
 876     int i;
 877
 878     /* reset ref pictures */
 879     for( i = 1; i < h->frames.i_max_dpb; i++ )
 880     {
 881         h->frames.reference[i]->i_poc = -1;
 882     }
 883     h->frames.reference[0]->i_poc = 0;
 884 }
 885
 886 static inline void x264_slice_init( x264_t *h, int i_nal_type, int i_slice_type, int i_global_qp )
 887 {
 888     /* ------------------------ Create slice header  ----------------------- */
 889     if( i_nal_type == NAL_SLICE_IDR )
 890     {
 891         x264_slice_header_init( h, &h->sh, h->sps, h->pps, i_slice_type, h->i_idr_pic_id, h->i_frame_num, i_global_qp );
 892
 893         /* increment id */
 894         h->i_idr_pic_id = ( h->i_idr_pic_id + 1 ) % 65536;
 895     }
 896     else
 897     {
 898         x264_slice_header_init( h, &h->sh, h->sps, h->pps, i_slice_type, -1, h->i_frame_num, i_global_qp );
 899
 900         /* always set the real higher num of ref frame used */
 901         h->sh.b_num_ref_idx_override = 1;
 902         h->sh.i_num_ref_idx_l0_active = h->i_ref0 <= 0 ? 1 : h->i_ref0;
 903         h->sh.i_num_ref_idx_l1_active = h->i_ref1 <= 0 ? 1 : h->i_ref1;
 904     }
 905
 906     h->fdec->i_frame_num = h->sh.i_frame_num;
 907
 908     if( h->sps->i_poc_type == 0 )
 909     {
 910         h->sh.i_poc_lsb = h->fdec->i_poc & ( (1 << h->sps->i_log2_max_poc_lsb) - 1 );
 911         h->sh.i_delta_poc_bottom = 0;   /* XXX won't work for field */
 912     }
 913     else if( h->sps->i_poc_type == 1 )
 914     {
 915         /* FIXME TODO FIXME */
 916     }
 917     else
 918     {
 919         /* Nothing to do ? */
 920     }
 921
 922     x264_macroblock_slice_init( h );
 923 }
 924
 925 static int x264_slice_write( x264_t *h )
 926 {
 927     int i_skip;
 928     int mb_xy;
 929     int i;
 930
 931     /* init stats */
 932     memset( &h->stat.frame, 0, sizeof(h->stat.frame) );
 933
 934     /* Slice */
 935     x264_nal_start( h, h->i_nal_type, h->i_nal_ref_idc );
 936
 937     /* Slice header */
 938     x264_slice_header_write( &h->out.bs, &h->sh, h->i_nal_ref_idc );
 939     if( h->param.b_cabac )
 940     {
 941         /* alignment needed */
 942         bs_align_1( &h->out.bs );
 943
 944         /* init cabac */
 945         x264_cabac_context_init( &h->cabac, h->sh.i_type, h->sh.i_qp, h->sh.i_cabac_init_idc );
 946         x264_cabac_encode_init ( &h->cabac, &h->out.bs );
 947     }
 948     h->mb.i_last_qp = h->sh.i_qp;
 949     h->mb.i_last_dqp = 0;
 950
 951     for( mb_xy = h->sh.i_first_mb, i_skip = 0; mb_xy < h->sh.i_last_mb; mb_xy++ )
 952     {
 953         const int i_mb_y = mb_xy / h->sps->i_mb_width;
 954         const int i_mb_x = mb_xy % h->sps->i_mb_width;
 955
 956         int mb_spos = bs_pos(&h->out.bs);
 957
 958         /* load cache */
 959         x264_macroblock_cache_load( h, i_mb_x, i_mb_y );
 960
 961         /* analyse parameters
 962          * Slice I: choose I_4x4 or I_16x16 mode
 963          * Slice P: choose between using P mode or intra (4x4 or 16x16)
 964          * */
 965         TIMER_START( i_mtime_analyse );
 966         x264_macroblock_analyse( h );
 967         TIMER_STOP( i_mtime_analyse );
 968
 969         /* encode this macrobock -> be carefull it can change the mb type to P_SKIP if needed */
 970         TIMER_START( i_mtime_encode );
 971         x264_macroblock_encode( h );
 972         TIMER_STOP( i_mtime_encode );
 973
 974         TIMER_START( i_mtime_write );
 975         if( h->param.b_cabac )
 976         {
 977             if( mb_xy > h->sh.i_first_mb )
 978                 x264_cabac_encode_terminal( &h->cabac, 0 );
 979
 980             if( IS_SKIP( h->mb.i_type ) )
 981                 x264_cabac_mb_skip( h, 1 );
 982             else
 983             {
 984                 if( h->sh.i_type != SLICE_TYPE_I )
 985                     x264_cabac_mb_skip( h, 0 );
 986                 x264_macroblock_write_cabac( h, &h->cabac );
 987             }
 988         }
 989         else
 990         {
 991             if( IS_SKIP( h->mb.i_type ) )
 992                 i_skip++;
 993             else
 994             {
 995                 if( h->sh.i_type != SLICE_TYPE_I )
 996                 {
 997                     bs_write_ue( &h->out.bs, i_skip );  /* skip run */
 998                     i_skip = 0;
 999                 }
1000                 x264_macroblock_write_cavlc( h, &h->out.bs );
1001             }
1002         }
1003         TIMER_STOP( i_mtime_write );
1004
1005 #if VISUALIZE
1006         if( h->param.b_visualize )
1007             x264_visualize_mb( h );
1008 #endif
1009
1010         /* save cache */
1011         x264_macroblock_cache_save( h );
1012
1013         /* accumulate mb stats */
1014         h->stat.frame.i_mb_count[h->mb.i_type]++;
1015         if( !IS_SKIP(h->mb.i_type) && !IS_INTRA(h->mb.i_type) && !IS_DIRECT(h->mb.i_type) )
1016         {
1017             if( h->mb.i_partition != D_8x8 )
1018                 h->stat.frame.i_mb_count_size[ x264_mb_partition_pixel_table[ h->mb.i_partition ] ] += 4;
1019             else
1020                 for( i = 0; i < 4; i++ )
1021                     h->stat.frame.i_mb_count_size[ x264_mb_partition_pixel_table[ h->mb.i_sub_partition[i] ] ] ++;
1022             if( h->param.i_frame_reference > 1 )
1023             {
1024                 for( i = 0; i < 4; i++ )
1025                 {
1026                     int i_ref = h->mb.cache.ref[0][ x264_scan8[4*i] ];
1027                     if( i_ref >= 0 )
1028                         h->stat.frame.i_mb_count_ref[i_ref] ++;
1029                 }
1030             }
1031         }
1032         if( h->mb.i_cbp_luma && !IS_INTRA(h->mb.i_type) )
1033         {
1034             h->stat.frame.i_mb_count_8x8dct[0] ++;
1035             h->stat.frame.i_mb_count_8x8dct[1] += h->mb.b_transform_8x8;
1036         }
1037
1038         if( h->mb.b_variable_qp )
1039             x264_ratecontrol_mb(h, bs_pos(&h->out.bs) - mb_spos);
1040     }
1041
1042     if( h->param.b_cabac )
1043     {
1044         /* end of slice */
1045         x264_cabac_encode_terminal( &h->cabac, 1 );
1046     }
1047     else if( i_skip > 0 )
1048     {
1049         bs_write_ue( &h->out.bs, i_skip );  /* last skip run */
1050     }
1051
1052     if( h->param.b_cabac )
1053     {
1054         x264_cabac_encode_flush( &h->cabac );
1055
1056     }
1057     else
1058     {
1059         /* rbsp_slice_trailing_bits */
1060         bs_rbsp_trailing( &h->out.bs );
1061     }
1062
1063     x264_nal_end( h );
1064
1065     /* Compute misc bits */
1066     h->stat.frame.i_misc_bits = bs_pos( &h->out.bs )
1067                               + NALU_OVERHEAD * 8
1068                               - h->stat.frame.i_itex_bits
1069                               - h->stat.frame.i_ptex_bits
1070                               - h->stat.frame.i_hdr_bits;
1071
1072     return 0;
1073 }
1074
1075 static inline int x264_slices_write( x264_t *h )
1076 {
1077     int i_frame_size;
1078
1079 #if VISUALIZE
1080     if( h->param.b_visualize )
1081         x264_visualize_init( h );
1082 #endif
1083
1084     if( h->param.i_threads == 1 )
1085     {
1086         x264_ratecontrol_threads_start( h );
1087         x264_slice_write( h );
1088         i_frame_size = h->out.nal[h->out.i_nal-1].i_payload;
1089     }
1090     else
1091     {
1092         int i_nal = h->out.i_nal;
1093         int i_bs_size = h->out.i_bitstream / h->param.i_threads;
1094         int i;
1095         /* duplicate contexts */
1096         for( i = 0; i < h->param.i_threads; i++ )
1097         {
1098             x264_t *t = h->thread[i];
1099             if( i > 0 )
1100             {
1101                 memcpy( t, h, sizeof(x264_t) );
1102                 t->out.p_bitstream += i*i_bs_size;
1103                 bs_init( &t->out.bs, t->out.p_bitstream, i_bs_size );
1104                 t->i_thread_num = i;
1105             }
1106             t->sh.i_first_mb = (i    * h->sps->i_mb_height / h->param.i_threads) * h->sps->i_mb_width;
1107             t->sh.i_last_mb = ((i+1) * h->sps->i_mb_height / h->param.i_threads) * h->sps->i_mb_width;
1108             t->out.i_nal = i_nal + i;
1109         }
1110         x264_ratecontrol_threads_start( h );
1111
1112         /* dispatch */
1113 #ifdef HAVE_PTHREAD
1114         {
1115             pthread_t handles[X264_SLICE_MAX];
1116             for( i = 0; i < h->param.i_threads; i++ )
1117                 pthread_create( &handles[i], NULL, (void*)x264_slice_write, (void*)h->thread[i] );
1118             for( i = 0; i < h->param.i_threads; i++ )
1119                 pthread_join( handles[i], NULL );
1120         }
1121 #else
1122         for( i = 0; i < h->param.i_threads; i++ )
1123             x264_slice_write( h->thread[i] );
1124 #endif
1125
1126         /* merge contexts */
1127         i_frame_size = h->out.nal[i_nal].i_payload;
1128         for( i = 1; i < h->param.i_threads; i++ )
1129         {
1130             int j;
1131             x264_t *t = h->thread[i];
1132             h->out.nal[i_nal+i] = t->out.nal[i_nal+i];
1133             i_frame_size += t->out.nal[i_nal+i].i_payload;
1134             // all entries in stat.frame are ints
1135             for( j = 0; j < sizeof(h->stat.frame) / sizeof(int); j++ )
1136                 ((int*)&h->stat.frame)[j] += ((int*)&t->stat.frame)[j];
1137         }
1138         h->out.i_nal = i_nal + h->param.i_threads;
1139     }
1140
1141 #if VISUALIZE
1142     if( h->param.b_visualize )
1143     {
1144         x264_visualize_show( h );
1145         x264_visualize_close( h );
1146     }
1147 #endif
1148
1149     return i_frame_size;
1150 }
1151
1152 /****************************************************************************
1153  * x264_encoder_encode:
1154  *  XXX: i_poc   : is the poc of the current given picture
1155  *       i_frame : is the number of the frame being coded
1156  *  ex:  type frame poc
1157  *       I      0   2*0
1158  *       P      1   2*3
1159  *       B      2   2*1
1160  *       B      3   2*2
1161  *       P      4   2*6
1162  *       B      5   2*4
1163  *       B      6   2*5
1164  ****************************************************************************/
1165 int     x264_encoder_encode( x264_t *h,
1166                              x264_nal_t **pp_nal, int *pi_nal,
1167                              x264_picture_t *pic_in,
1168                              x264_picture_t *pic_out )
1169 {
1170     x264_frame_t   *frame_psnr = h->fdec; /* just to keep the current decoded frame for psnr calculation */
1171     int     i_nal_type;
1172     int     i_nal_ref_idc;
1173     int     i_slice_type;
1174     int     i_frame_size;
1175
1176     int i;
1177
1178     int   i_global_qp;
1179
1180     char psz_message[80];
1181
1182     /* no data out */
1183     *pi_nal = 0;
1184     *pp_nal = NULL;
1185
1186
1187     /* ------------------- Setup new frame from picture -------------------- */
1188     TIMER_START( i_mtime_encode_frame );
1189     if( pic_in != NULL )
1190     {
1191         /* 1: Copy the picture to a frame and move it to a buffer */
1192         x264_frame_t *fenc = x264_frame_get( h->frames.unused );
1193
1194         x264_frame_copy_picture( h, fenc, pic_in );
1195
1196         if( h->param.i_width % 16 || h->param.i_height % 16 )
1197             x264_frame_expand_border_mod16( h, fenc );
1198
1199         fenc->i_frame = h->frames.i_input++;
1200
1201         x264_frame_put( h->frames.next, fenc );
1202
1203         if( h->frames.b_have_lowres )
1204             x264_frame_init_lowres( h->param.cpu, fenc );
1205
1206         if( h->frames.i_input <= h->frames.i_delay )
1207         {
1208             /* Nothing yet to encode */
1209             /* waiting for filling bframe buffer */
1210             pic_out->i_type = X264_TYPE_AUTO;
1211             return 0;
1212         }
1213     }
1214
1215     if( h->frames.current[0] == NULL )
1216     {
1217         int bframes = 0;
1218         /* 2: Select frame types */
1219         if( h->frames.next[0] == NULL )
1220             return 0;
1221
1222         x264_slicetype_decide( h );
1223
1224         /* 3: move some B-frames and 1 non-B to encode queue */
1225         while( IS_X264_TYPE_B( h->frames.next[bframes]->i_type ) )
1226             bframes++;
1227         x264_frame_put( h->frames.current, x264_frame_get( &h->frames.next[bframes] ) );
1228         /* FIXME: when max B-frames > 3, BREF may no longer be centered after GOP closing */
1229         if( h->param.b_bframe_pyramid && bframes > 1 )
1230         {
1231             x264_frame_t *mid = x264_frame_get( &h->frames.next[bframes/2] );
1232             mid->i_type = X264_TYPE_BREF;
1233             x264_frame_put( h->frames.current, mid );
1234             bframes--;
1235         }
1236         while( bframes-- )
1237             x264_frame_put( h->frames.current, x264_frame_get( h->frames.next ) );
1238     }
1239     TIMER_STOP( i_mtime_encode_frame );
1240
1241     /* ------------------- Get frame to be encoded ------------------------- */
1242     /* 4: get picture to encode */
1243     h->fenc = x264_frame_get( h->frames.current );
1244     if( h->fenc == NULL )
1245     {
1246         /* Nothing yet to encode (ex: waiting for I/P with B frames) */
1247         /* waiting for filling bframe buffer */
1248         pic_out->i_type = X264_TYPE_AUTO;
1249         return 0;
1250     }
1251
1252 do_encode:
1253
1254     if( h->fenc->i_type == X264_TYPE_IDR )
1255     {
1256         h->frames.i_last_idr = h->fenc->i_frame;
1257     }
1258
1259     /* ------------------- Setup frame context ----------------------------- */
1260     /* 5: Init data dependant of frame type */
1261     TIMER_START( i_mtime_encode_frame );
1262     if( h->fenc->i_type == X264_TYPE_IDR )
1263     {
1264         /* reset ref pictures */
1265         x264_reference_reset( h );
1266
1267         i_nal_type    = NAL_SLICE_IDR;
1268         i_nal_ref_idc = NAL_PRIORITY_HIGHEST;
1269         i_slice_type = SLICE_TYPE_I;
1270     }
1271     else if( h->fenc->i_type == X264_TYPE_I )
1272     {
1273         i_nal_type    = NAL_SLICE;
1274         i_nal_ref_idc = NAL_PRIORITY_HIGH; /* Not completely true but for now it is (as all I/P are kept as ref)*/
1275         i_slice_type = SLICE_TYPE_I;
1276     }
1277     else if( h->fenc->i_type == X264_TYPE_P )
1278     {
1279         i_nal_type    = NAL_SLICE;
1280         i_nal_ref_idc = NAL_PRIORITY_HIGH; /* Not completely true but for now it is (as all I/P are kept as ref)*/
1281         i_slice_type = SLICE_TYPE_P;
1282     }
1283     else if( h->fenc->i_type == X264_TYPE_BREF )
1284     {
1285         i_nal_type    = NAL_SLICE;
1286         i_nal_ref_idc = NAL_PRIORITY_HIGH; /* maybe add MMCO to forget it? -> low */
1287         i_slice_type = SLICE_TYPE_B;
1288     }
1289     else    /* B frame */
1290     {
1291         i_nal_type    = NAL_SLICE;
1292         i_nal_ref_idc = NAL_PRIORITY_DISPOSABLE;
1293         i_slice_type = SLICE_TYPE_B;
1294     }
1295
1296     h->fdec->i_poc =
1297     h->fenc->i_poc = 2 * (h->fenc->i_frame - h->frames.i_last_idr);
1298     h->fdec->i_type = h->fenc->i_type;
1299     h->fdec->i_frame = h->fenc->i_frame;
1300     h->fenc->b_kept_as_ref =
1301     h->fdec->b_kept_as_ref = i_nal_ref_idc != NAL_PRIORITY_DISPOSABLE;
1302
1303
1304
1305     /* ------------------- Init                ----------------------------- */
1306     /* build ref list 0/1 */
1307     x264_reference_build_list( h, h->fdec->i_poc, i_slice_type );
1308
1309     /* Init the rate control */
1310     x264_ratecontrol_start( h, i_slice_type, h->fenc->i_qpplus1 );
1311     i_global_qp = x264_ratecontrol_qp( h );
1312
1313     pic_out->i_qpplus1 =
1314     h->fdec->i_qpplus1 = i_global_qp + 1;
1315
1316     if( i_slice_type == SLICE_TYPE_B )
1317         x264_macroblock_bipred_init( h );
1318
1319     /* ------------------------ Create slice header  ----------------------- */
1320     x264_slice_init( h, i_nal_type, i_slice_type, i_global_qp );
1321
1322     if( h->fenc->b_kept_as_ref )
1323         h->i_frame_num++;
1324
1325     /* ---------------------- Write the bitstream -------------------------- */
1326     /* Init bitstream context */
1327     h->out.i_nal = 0;
1328     bs_init( &h->out.bs, h->out.p_bitstream, h->out.i_bitstream );
1329
1330     if(h->param.b_aud){
1331         int pic_type;
1332
1333         if(i_slice_type == SLICE_TYPE_I)
1334             pic_type = 0;
1335         else if(i_slice_type == SLICE_TYPE_P)
1336             pic_type = 1;
1337         else if(i_slice_type == SLICE_TYPE_B)
1338             pic_type = 2;
1339         else
1340             pic_type = 7;
1341
1342         x264_nal_start(h, NAL_AUD, NAL_PRIORITY_DISPOSABLE);
1343         bs_write(&h->out.bs, 3, pic_type);
1344         bs_rbsp_trailing(&h->out.bs);
1345         x264_nal_end(h);
1346     }
1347
1348     h->i_nal_type = i_nal_type;
1349     h->i_nal_ref_idc = i_nal_ref_idc;
1350
1351     /* Write SPS and PPS */
1352     if( i_nal_type == NAL_SLICE_IDR && h->param.b_repeat_headers )
1353     {
1354         if( h->fenc->i_frame == 0 )
1355         {
1356             /* identify ourself */
1357             x264_nal_start( h, NAL_SEI, NAL_PRIORITY_DISPOSABLE );
1358             x264_sei_version_write( h, &h->out.bs );
1359             x264_nal_end( h );
1360         }
1361
1362         /* generate sequence parameters */
1363         x264_nal_start( h, NAL_SPS, NAL_PRIORITY_HIGHEST );
1364         x264_sps_write( &h->out.bs, h->sps );
1365         x264_nal_end( h );
1366
1367         /* generate picture parameters */
1368         x264_nal_start( h, NAL_PPS, NAL_PRIORITY_HIGHEST );
1369         x264_pps_write( &h->out.bs, h->pps );
1370         x264_nal_end( h );
1371     }
1372
1373     /* Write frame */
1374     i_frame_size = x264_slices_write( h );
1375
1376     /* restore CPU state (before using float again) */
1377     x264_cpu_restore( h->param.cpu );
1378
1379     if( i_slice_type == SLICE_TYPE_P && !h->param.rc.b_stat_read
1380         && h->param.i_scenecut_threshold >= 0 )
1381     {
1382         const int *mbs = h->stat.frame.i_mb_count;
1383         int i_mb_i = mbs[I_16x16] + mbs[I_8x8] + mbs[I_4x4];
1384         int i_mb_p = mbs[P_L0] + mbs[P_8x8];
1385         int i_mb_s = mbs[P_SKIP];
1386         int i_mb   = h->sps->i_mb_width * h->sps->i_mb_height;
1387         int64_t i_inter_cost = h->stat.frame.i_inter_cost;
1388         int64_t i_intra_cost = h->stat.frame.i_intra_cost;
1389
1390         float f_bias;
1391         int i_gop_size = h->fenc->i_frame - h->frames.i_last_idr;
1392         float f_thresh_max = h->param.i_scenecut_threshold / 100.0;
1393         /* magic numbers pulled out of thin air */
1394         float f_thresh_min = f_thresh_max * h->param.i_keyint_min
1395                              / ( h->param.i_keyint_max * 4 );
1396         if( h->param.i_keyint_min == h->param.i_keyint_max )
1397              f_thresh_min= f_thresh_max;
1398
1399         /* macroblock_analyse() doesn't further analyse skipped mbs,
1400          * so we have to guess their cost */
1401         if( i_mb_s < i_mb )
1402             i_intra_cost = i_intra_cost * i_mb / (i_mb - i_mb_s);
1403
1404         if( i_gop_size < h->param.i_keyint_min / 4 )
1405             f_bias = f_thresh_min / 4;
1406         else if( i_gop_size <= h->param.i_keyint_min )
1407             f_bias = f_thresh_min * i_gop_size / h->param.i_keyint_min;
1408         else
1409         {
1410             f_bias = f_thresh_min
1411                      + ( f_thresh_max - f_thresh_min )
1412                        * ( i_gop_size - h->param.i_keyint_min )
1413                        / ( h->param.i_keyint_max - h->param.i_keyint_min );
1414         }
1415         f_bias = X264_MIN( f_bias, 1.0 );
1416
1417         /* Bad P will be reencoded as I */
1418         if( i_mb_s < i_mb &&
1419             i_inter_cost >= (1.0 - f_bias) * i_intra_cost )
1420         {
1421             int b;
1422
1423             x264_log( h, X264_LOG_DEBUG, "scene cut at %d Icost:%.0f Pcost:%.0f ratio:%.3f bias=%.3f lastIDR:%d (I:%d P:%d S:%d)\n",
1424                       h->fenc->i_frame,
1425                       (double)i_intra_cost, (double)i_inter_cost,
1426                       (double)i_inter_cost / i_intra_cost,
1427                       f_bias, i_gop_size,
1428                       i_mb_i, i_mb_p, i_mb_s );
1429
1430             /* Restore frame num */
1431             h->i_frame_num--;
1432
1433             for( b = 0; h->frames.current[b] && IS_X264_TYPE_B( h->frames.current[b]->i_type ); b++ );
1434             if( b > 0 )
1435             {
1436                 /* If using B-frames, force GOP to be closed.
1437                  * Even if this frame is going to be I and not IDR, forcing a
1438                  * P-frame before the scenecut will probably help compression.
1439                  *
1440                  * We don't yet know exactly which frame is the scene cut, so
1441                  * we can't assign an I-frame. Instead, change the previous
1442                  * B-frame to P, and rearrange coding order. */
1443
1444                 if( h->param.b_bframe_adaptive || b > 1 )
1445                     h->fenc->i_type = X264_TYPE_AUTO;
1446                 x264_frame_sort_pts( h->frames.current );
1447                 x264_frame_push( h->frames.next, h->fenc );
1448                 h->fenc = h->frames.current[b-1];
1449                 h->frames.current[b-1] = NULL;
1450                 h->fenc->i_type = X264_TYPE_P;
1451                 x264_frame_sort_dts( h->frames.current );
1452             }
1453             /* Do IDR if needed */
1454             else if( i_gop_size >= h->param.i_keyint_min )
1455             {
1456                 x264_frame_t *tmp;
1457
1458                 /* Reset */
1459                 h->i_frame_num = 0;
1460
1461                 /* Reinit field of fenc */
1462                 h->fenc->i_type = X264_TYPE_IDR;
1463                 h->fenc->i_poc = 0;
1464
1465                 /* Put enqueued frames back in the pool */
1466                 while( (tmp = x264_frame_get( h->frames.current ) ) != NULL )
1467                     x264_frame_put( h->frames.next, tmp );
1468                 x264_frame_sort_pts( h->frames.next );
1469             }
1470             else
1471             {
1472                 h->fenc->i_type = X264_TYPE_I;
1473             }
1474             goto do_encode;
1475         }
1476     }
1477
1478     /* End bitstream, set output  */
1479     *pi_nal = h->out.i_nal;
1480     *pp_nal = h->out.nal;
1481
1482     /* Set output picture properties */
1483     if( i_slice_type == SLICE_TYPE_I )
1484         pic_out->i_type = i_nal_type == NAL_SLICE_IDR ? X264_TYPE_IDR : X264_TYPE_I;
1485     else if( i_slice_type == SLICE_TYPE_P )
1486         pic_out->i_type = X264_TYPE_P;
1487     else
1488         pic_out->i_type = X264_TYPE_B;
1489     pic_out->i_pts = h->fenc->i_pts;
1490
1491     pic_out->img.i_plane = h->fdec->i_plane;
1492     for(i = 0; i < 4; i++){
1493         pic_out->img.i_stride[i] = h->fdec->i_stride[i];
1494         pic_out->img.plane[i] = h->fdec->plane[i];
1495     }
1496
1497     /* ---------------------- Update encoder state ------------------------- */
1498
1499     /* update rc */
1500     x264_cpu_restore( h->param.cpu );
1501     x264_ratecontrol_end( h, i_frame_size * 8 );
1502
1503     /* handle references */
1504     if( i_nal_ref_idc != NAL_PRIORITY_DISPOSABLE )
1505         x264_reference_update( h );
1506 #ifdef DEBUG_DUMP_FRAME
1507     else
1508         x264_fdec_deblock( h );
1509 #endif
1510     x264_frame_put( h->frames.unused, h->fenc );
1511
1512     /* increase frame count */
1513     h->i_frame++;
1514
1515     /* restore CPU state (before using float again) */
1516     x264_cpu_restore( h->param.cpu );
1517
1518     x264_noise_reduction_update( h );
1519
1520     TIMER_STOP( i_mtime_encode_frame );
1521
1522     /* ---------------------- Compute/Print statistics --------------------- */
1523     /* Slice stat */
1524     h->stat.i_slice_count[i_slice_type]++;
1525     h->stat.i_slice_size[i_slice_type] += i_frame_size + NALU_OVERHEAD;
1526     h->stat.i_slice_qp[i_slice_type] += i_global_qp;
1527
1528     for( i = 0; i < 19; i++ )
1529         h->stat.i_mb_count[h->sh.i_type][i] += h->stat.frame.i_mb_count[i];
1530     for( i = 0; i < 2; i++ )
1531         h->stat.i_mb_count_8x8dct[i] += h->stat.frame.i_mb_count_8x8dct[i];
1532     if( h->sh.i_type != SLICE_TYPE_I )
1533     {
1534         for( i = 0; i < 7; i++ )
1535             h->stat.i_mb_count_size[h->sh.i_type][i] += h->stat.frame.i_mb_count_size[i];
1536         for( i = 0; i < 16; i++ )
1537             h->stat.i_mb_count_ref[h->sh.i_type][i] += h->stat.frame.i_mb_count_ref[i];
1538     }
1539     if( i_slice_type == SLICE_TYPE_B )
1540     {
1541         h->stat.i_direct_frames[ h->sh.b_direct_spatial_mv_pred ] ++;
1542         if( h->mb.b_direct_auto_write )
1543         {
1544             //FIXME somewhat arbitrary time constants
1545             if( h->stat.i_direct_score[0] + h->stat.i_direct_score[1] > h->mb.i_mb_count )
1546             {
1547                 for( i = 0; i < 2; i++ )
1548                     h->stat.i_direct_score[i] = h->stat.i_direct_score[i] * 9/10;
1549             }
1550             for( i = 0; i < 2; i++ )
1551                 h->stat.i_direct_score[i] += h->stat.frame.i_direct_score[i];
1552         }
1553     }
1554
1555     if( h->param.analyse.b_psnr )
1556     {
1557         int64_t i_sqe_y, i_sqe_u, i_sqe_v;
1558
1559         /* PSNR */
1560         i_sqe_y = x264_pixel_ssd_wxh( &h->pixf, frame_psnr->plane[0], frame_psnr->i_stride[0], h->fenc->plane[0], h->fenc->i_stride[0], h->param.i_width, h->param.i_height );
1561         i_sqe_u = x264_pixel_ssd_wxh( &h->pixf, frame_psnr->plane[1], frame_psnr->i_stride[1], h->fenc->plane[1], h->fenc->i_stride[1], h->param.i_width/2, h->param.i_height/2);
1562         i_sqe_v = x264_pixel_ssd_wxh( &h->pixf, frame_psnr->plane[2], frame_psnr->i_stride[2], h->fenc->plane[2], h->fenc->i_stride[2], h->param.i_width/2, h->param.i_height/2);
1563         x264_cpu_restore( h->param.cpu );
1564
1565         h->stat.i_sqe_global[i_slice_type] += i_sqe_y + i_sqe_u + i_sqe_v;
1566         h->stat.f_psnr_average[i_slice_type] += x264_psnr( i_sqe_y + i_sqe_u + i_sqe_v, 3 * h->param.i_width * h->param.i_height / 2 );
1567         h->stat.f_psnr_mean_y[i_slice_type] += x264_psnr( i_sqe_y, h->param.i_width * h->param.i_height );
1568         h->stat.f_psnr_mean_u[i_slice_type] += x264_psnr( i_sqe_u, h->param.i_width * h->param.i_height / 4 );
1569         h->stat.f_psnr_mean_v[i_slice_type] += x264_psnr( i_sqe_v, h->param.i_width * h->param.i_height / 4 );
1570
1571         snprintf( psz_message, 80, " PSNR Y:%2.2f U:%2.2f V:%2.2f",
1572                   x264_psnr( i_sqe_y, h->param.i_width * h->param.i_height ),
1573                   x264_psnr( i_sqe_u, h->param.i_width * h->param.i_height / 4),
1574                   x264_psnr( i_sqe_v, h->param.i_width * h->param.i_height / 4) );
1575         psz_message[79] = '\0';
1576     }
1577     else
1578     {
1579         psz_message[0] = '\0';
1580     }
1581
1582     x264_log( h, X264_LOG_DEBUG,
1583                   "frame=%4d QP=%i NAL=%d Slice:%c Poc:%-3d I:%-4d P:%-4d SKIP:%-4d size=%d bytes%s\n",
1584               h->i_frame - 1,
1585               i_global_qp,
1586               i_nal_ref_idc,
1587               i_slice_type == SLICE_TYPE_I ? 'I' : (i_slice_type == SLICE_TYPE_P ? 'P' : 'B' ),
1588               frame_psnr->i_poc,
1589               h->stat.frame.i_mb_count_i,
1590               h->stat.frame.i_mb_count_p,
1591               h->stat.frame.i_mb_count_skip,
1592               i_frame_size,
1593               psz_message );
1594
1595
1596 #ifdef DEBUG_MB_TYPE
1597 {
1598     static const char mb_chars[] = { 'i', 'i', 'I', 'C', 'P', '8', 'S',
1599         'D', '<', 'X', 'B', 'X', '>', 'B', 'B', 'B', 'B', '8', 'S' };
1600     int mb_xy;
1601     for( mb_xy = 0; mb_xy < h->sps->i_mb_width * h->sps->i_mb_height; mb_xy++ )
1602     {
1603         if( h->mb.type[mb_xy] < 19 && h->mb.type[mb_xy] >= 0 )
1604             fprintf( stderr, "%c ", mb_chars[ h->mb.type[mb_xy] ] );
1605         else
1606             fprintf( stderr, "? " );
1607
1608         if( (mb_xy+1) % h->sps->i_mb_width == 0 )
1609             fprintf( stderr, "\n" );
1610     }
1611 }
1612 #endif
1613
1614 #ifdef DEBUG_DUMP_FRAME
1615     /* Dump reconstructed frame */
1616     x264_frame_dump( h, frame_psnr, "fdec.yuv" );
1617 #endif
1618     return 0;
1619 }
1620
1621 /****************************************************************************
1622  * x264_encoder_close:
1623  ****************************************************************************/
1624 void    x264_encoder_close  ( x264_t *h )
1625 {
1626 #ifdef DEBUG_BENCHMARK
1627     int64_t i_mtime_total = i_mtime_analyse + i_mtime_encode + i_mtime_write + i_mtime_filter + 1;
1628 #endif
1629     int64_t i_yuv_size = 3 * h->param.i_width * h->param.i_height / 2;
1630     int i;
1631
1632 #ifdef DEBUG_BENCHMARK
1633     x264_log( h, X264_LOG_INFO,
1634               "analyse=%d(%lldms) encode=%d(%lldms) write=%d(%lldms) filter=%d(%lldms)\n",
1635               (int)(100*i_mtime_analyse/i_mtime_total), i_mtime_analyse/1000,
1636               (int)(100*i_mtime_encode/i_mtime_total), i_mtime_encode/1000,
1637               (int)(100*i_mtime_write/i_mtime_total), i_mtime_write/1000,
1638               (int)(100*i_mtime_filter/i_mtime_total), i_mtime_filter/1000 );
1639 #endif
1640
1641     /* Slices used and PSNR */
1642     for( i=0; i<5; i++ )
1643     {
1644         static const int slice_order[] = { SLICE_TYPE_I, SLICE_TYPE_SI, SLICE_TYPE_P, SLICE_TYPE_SP, SLICE_TYPE_B };
1645         static const char *slice_name[] = { "P", "B", "I", "SP", "SI" };
1646         int i_slice = slice_order[i];
1647
1648         if( h->stat.i_slice_count[i_slice] > 0 )
1649         {
1650             const int i_count = h->stat.i_slice_count[i_slice];
1651             if( h->param.analyse.b_psnr )
1652             {
1653                 x264_log( h, X264_LOG_INFO,
1654                           "slice %s:%-5d Avg QP:%5.2f  size:%6.0f  PSNR Mean Y:%5.2f U:%5.2f V:%5.2f Avg:%5.2f Global:%5.2f\n",
1655                           slice_name[i_slice],
1656                           i_count,
1657                           (double)h->stat.i_slice_qp[i_slice] / i_count,
1658                           (double)h->stat.i_slice_size[i_slice] / i_count,
1659                           h->stat.f_psnr_mean_y[i_slice] / i_count, h->stat.f_psnr_mean_u[i_slice] / i_count, h->stat.f_psnr_mean_v[i_slice] / i_count,
1660                           h->stat.f_psnr_average[i_slice] / i_count,
1661                           x264_psnr( h->stat.i_sqe_global[i_slice], i_count * i_yuv_size ) );
1662             }
1663             else
1664             {
1665                 x264_log( h, X264_LOG_INFO,
1666                           "slice %s:%-5d Avg QP:%5.2f  size:%6.0f\n",
1667                           slice_name[i_slice],
1668                           i_count,
1669                           (double)h->stat.i_slice_qp[i_slice] / i_count,
1670                           (double)h->stat.i_slice_size[i_slice] / i_count );
1671             }
1672         }
1673     }
1674
1675     /* MB types used */
1676     if( h->stat.i_slice_count[SLICE_TYPE_I] > 0 )
1677     {
1678         const int64_t *i_mb_count = h->stat.i_mb_count[SLICE_TYPE_I];
1679         const double i_count = h->stat.i_slice_count[SLICE_TYPE_I] * h->mb.i_mb_count / 100.0;
1680         x264_log( h, X264_LOG_INFO,
1681                   "mb I  I16..4: %4.1f%% %4.1f%% %4.1f%%\n",
1682                   i_mb_count[I_16x16]/ i_count,
1683                   i_mb_count[I_8x8]  / i_count,
1684                   i_mb_count[I_4x4]  / i_count );
1685     }
1686     if( h->stat.i_slice_count[SLICE_TYPE_P] > 0 )
1687     {
1688         const int64_t *i_mb_count = h->stat.i_mb_count[SLICE_TYPE_P];
1689         const int64_t *i_mb_size = h->stat.i_mb_count_size[SLICE_TYPE_P];
1690         const double i_count = h->stat.i_slice_count[SLICE_TYPE_P] * h->mb.i_mb_count / 100.0;
1691         x264_log( h, X264_LOG_INFO,
1692                   "mb P  I16..4: %4.1f%% %4.1f%% %4.1f%%  P16..4: %4.1f%% %4.1f%% %4.1f%% %4.1f%% %4.1f%%    skip:%4.1f%%\n",
1693                   i_mb_count[I_16x16]/ i_count,
1694                   i_mb_count[I_8x8]  / i_count,
1695                   i_mb_count[I_4x4]  / i_count,
1696                   i_mb_size[PIXEL_16x16] / (i_count*4),
1697                   (i_mb_size[PIXEL_16x8] + i_mb_size[PIXEL_8x16]) / (i_count*4),
1698                   i_mb_size[PIXEL_8x8] / (i_count*4),
1699                   (i_mb_size[PIXEL_8x4] + i_mb_size[PIXEL_4x8]) / (i_count*4),
1700                   i_mb_size[PIXEL_4x4] / (i_count*4),
1701                   i_mb_count[P_SKIP] / i_count );
1702     }
1703     if( h->stat.i_slice_count[SLICE_TYPE_B] > 0 )
1704     {
1705         const int64_t *i_mb_count = h->stat.i_mb_count[SLICE_TYPE_B];
1706         const int64_t *i_mb_size = h->stat.i_mb_count_size[SLICE_TYPE_B];
1707         const double i_count = h->stat.i_slice_count[SLICE_TYPE_B] * h->mb.i_mb_count / 100.0;
1708         x264_log( h, X264_LOG_INFO,
1709                   "mb B  I16..4: %4.1f%% %4.1f%% %4.1f%%  B16..8: %4.1f%% %4.1f%% %4.1f%%  direct:%4.1f%%  skip:%4.1f%%\n",
1710                   i_mb_count[I_16x16]  / i_count,
1711                   i_mb_count[I_8x8]    / i_count,
1712                   i_mb_count[I_4x4]    / i_count,
1713                   i_mb_size[PIXEL_16x16] / (i_count*4),
1714                   (i_mb_size[PIXEL_16x8] + i_mb_size[PIXEL_8x16]) / (i_count*4),
1715                   i_mb_size[PIXEL_8x8] / (i_count*4),
1716                   i_mb_count[B_DIRECT] / i_count,
1717                   i_mb_count[B_SKIP]   / i_count );
1718     }
1719
1720     x264_ratecontrol_summary( h );
1721
1722     if( h->stat.i_slice_count[SLICE_TYPE_I] + h->stat.i_slice_count[SLICE_TYPE_P] + h->stat.i_slice_count[SLICE_TYPE_B] > 0 )
1723     {
1724         const int i_count = h->stat.i_slice_count[SLICE_TYPE_I] +
1725                             h->stat.i_slice_count[SLICE_TYPE_P] +
1726                             h->stat.i_slice_count[SLICE_TYPE_B];
1727         float fps = (float) h->param.i_fps_num / h->param.i_fps_den;
1728 #define SUM3(p) (p[SLICE_TYPE_I] + p[SLICE_TYPE_P] + p[SLICE_TYPE_B])
1729 #define SUM3b(p,o) (p[SLICE_TYPE_I][o] + p[SLICE_TYPE_P][o] + p[SLICE_TYPE_B][o])
1730         float f_bitrate = fps * SUM3(h->stat.i_slice_size) / i_count / 125;
1731
1732         if( h->param.analyse.b_transform_8x8 )
1733         {
1734             int64_t i_i8x8 = SUM3b( h->stat.i_mb_count, I_8x8 );
1735             int64_t i_intra = i_i8x8 + SUM3b( h->stat.i_mb_count, I_4x4 )
1736                                      + SUM3b( h->stat.i_mb_count, I_16x16 );
1737             x264_log( h, X264_LOG_INFO, "8x8 transform  intra:%.1f%%  inter:%.1f%%\n",
1738                       100. * i_i8x8 / i_intra,
1739                       100. * h->stat.i_mb_count_8x8dct[1] / h->stat.i_mb_count_8x8dct[0] );
1740         }
1741
1742         if( h->param.analyse.i_direct_mv_pred == X264_DIRECT_PRED_AUTO
1743             && h->stat.i_slice_count[SLICE_TYPE_B] )
1744         {
1745             x264_log( h, X264_LOG_INFO, "direct mvs  spatial:%.1f%%  temporal:%.1f%%\n",
1746                       h->stat.i_direct_frames[1] * 100. / h->stat.i_slice_count[SLICE_TYPE_B],
1747                       h->stat.i_direct_frames[0] * 100. / h->stat.i_slice_count[SLICE_TYPE_B] );
1748         }
1749
1750         if( h->param.i_frame_reference > 1 )
1751         {
1752             int i_slice;
1753             for( i_slice = 0; i_slice < 2; i_slice++ )
1754             {
1755                 char buf[200];
1756                 char *p = buf;
1757                 int64_t i_den = 0;
1758                 int i_max = 0;
1759                 for( i = 0; i < h->param.i_frame_reference; i++ )
1760                     if( h->stat.i_mb_count_ref[i_slice][i] )
1761                     {
1762                         i_den += h->stat.i_mb_count_ref[i_slice][i];
1763                         i_max = i;
1764                     }
1765                 if( i_max == 0 )
1766                     continue;
1767                 for( i = 0; i <= i_max; i++ )
1768                     p += sprintf( p, " %4.1f%%", 100. * h->stat.i_mb_count_ref[i_slice][i] / i_den );
1769                 x264_log( h, X264_LOG_INFO, "ref %c %s\n", i_slice==SLICE_TYPE_P ? 'P' : 'B', buf );
1770             }
1771         }
1772
1773         if( h->param.analyse.b_psnr )
1774             x264_log( h, X264_LOG_INFO,
1775                       "PSNR Mean Y:%6.3f U:%6.3f V:%6.3f Avg:%6.3f Global:%6.3f kb/s:%.2f\n",
1776                       SUM3( h->stat.f_psnr_mean_y ) / i_count,
1777                       SUM3( h->stat.f_psnr_mean_u ) / i_count,
1778                       SUM3( h->stat.f_psnr_mean_v ) / i_count,
1779                       SUM3( h->stat.f_psnr_average ) / i_count,
1780                       x264_psnr( SUM3( h->stat.i_sqe_global ), i_count * i_yuv_size ),
1781                       f_bitrate );
1782         else
1783             x264_log( h, X264_LOG_INFO, "kb/s:%.1f\n", f_bitrate );
1784     }
1785
1786     /* frames */
1787     for( i = 0; i < X264_BFRAME_MAX + 3; i++ )
1788     {
1789         if( h->frames.current[i] ) x264_frame_delete( h->frames.current[i] );
1790         if( h->frames.next[i] )    x264_frame_delete( h->frames.next[i] );
1791         if( h->frames.unused[i] )  x264_frame_delete( h->frames.unused[i] );
1792     }
1793     /* ref frames */
1794     for( i = 0; i < h->frames.i_max_dpb; i++ )
1795     {
1796         x264_frame_delete( h->frames.reference[i] );
1797     }
1798
1799     /* rc */
1800     x264_ratecontrol_delete( h );
1801
1802     /* param */
1803     if( h->param.rc.psz_stat_out )
1804         free( h->param.rc.psz_stat_out );
1805     if( h->param.rc.psz_stat_in )
1806         free( h->param.rc.psz_stat_in );
1807     if( h->param.rc.psz_rc_eq )
1808         free( h->param.rc.psz_rc_eq );
1809
1810     x264_macroblock_cache_end( h );
1811     x264_free( h->out.p_bitstream );
1812     for( i = 1; i < h->param.i_threads; i++ )
1813         x264_free( h->thread[i] );
1814     x264_free( h );
1815 }
1816