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 <stdlib.h>
  25 #include <stdio.h>
  26 #include <string.h>
  27 #include <math.h>
  28
  29 #if HAVE_PTHREAD
  30 #ifdef SYS_BEOS
  31 #include <kernel/OS.h>
  32 #define pthread_t               thread_id
  33 #define pthread_create(t,u,f,d) *(t)=spawn_thread(f,"",10,d)
  34 #define pthread_join(t,s)       wait_for_thread(t,(long*)s)
  35 #else
  36 #include <pthread.h>
  37 #endif
  38 #endif
  39
  40 #include "common/common.h"
  41 #include "common/cpu.h"
  42
  43 #include "set.h"
  44 #include "analyse.h"
  45 #include "ratecontrol.h"
  46 #include "macroblock.h"
  47
  48 #if VISUALIZE
  49 #include "common/visualize.h"
  50 #endif
  51
  52 //#define DEBUG_MB_TYPE
  53 #define DEBUG_DUMP_FRAME
  54 //#define DEBUG_BENCHMARK
  55
  56 #ifdef DEBUG_BENCHMARK
  57 static int64_t i_mtime_encode_frame = 0;
  58 static int64_t i_mtime_analyse = 0;
  59 static int64_t i_mtime_encode = 0;
  60 static int64_t i_mtime_write = 0;
  61 static int64_t i_mtime_filter = 0;
  62 #define TIMER_START( d ) \
  63     { \
  64         int64_t d##start = x264_mdate();
  65
  66 #define TIMER_STOP( d ) \
  67         d += x264_mdate() - d##start;\
  68     }
  69 #else
  70 #define TIMER_START( d )
  71 #define TIMER_STOP( d )
  72 #endif
  73
  74 #define NALU_OVERHEAD 5 // startcode + NAL type costs 5 bytes per frame
  75
  76 /****************************************************************************
  77  *
  78  ******************************* x264 libs **********************************
  79  *
  80  ****************************************************************************/
  81 static int64_t x264_sqe( x264_t *h, uint8_t *pix1, int i_pix_stride, uint8_t *pix2, int i_pix2_stride, int i_width, int i_height )
  82 {
  83     int64_t i_sqe = 0;
  84     int x, y;
  85
  86 #define SSD(size) i_sqe += h->pixf.ssd[size]( pix1+y*i_pix_stride+x, i_pix_stride, \
  87                                               pix2+y*i_pix2_stride+x, i_pix2_stride );
  88     for( y = 0; y < i_height-15; y += 16 )
  89     {
  90         for( x = 0; x < i_width-15; x += 16 )
  91             SSD(PIXEL_16x16);
  92         if( x < i_width-7 )
  93             SSD(PIXEL_8x16);
  94     }
  95     if( y < i_height-7 )
  96         for( x = 0; x < i_width-7; x += 8 )
  97             SSD(PIXEL_8x8);
  98 #undef SSD
  99     x264_cpu_restore( h->param.cpu );
 100
 101     return i_sqe;
 102 }
 103
 104 static float x264_psnr( int64_t i_sqe, int64_t i_size )
 105 {
 106     double f_mse = (double)i_sqe / ((double)65025.0 * (double)i_size);
 107     if( f_mse <= 0.0000000001 ) /* Max 100dB */
 108         return 100;
 109
 110     return (float)(-10.0 * log( f_mse ) / log( 10.0 ));
 111 }
 112
 113 #ifdef DEBUG_DUMP_FRAME
 114 static void x264_frame_dump( x264_t *h, x264_frame_t *fr, char *name )
 115 {
 116     FILE * f = fopen( name, "a" );
 117     int i, y;
 118
 119     fseek( f, 0, SEEK_END );
 120
 121     for( i = 0; i < fr->i_plane; i++ )
 122     {
 123         for( y = 0; y < h->param.i_height / ( i == 0 ? 1 : 2 ); y++ )
 124         {
 125             fwrite( &fr->plane[i][y*fr->i_stride[i]], 1, h->param.i_width / ( i == 0 ? 1 : 2 ), f );
 126         }
 127     }
 128     fclose( f );
 129 }
 130 #endif
 131
 132
 133 /* Fill "default" values */
 134 static void x264_slice_header_init( x264_t *h, x264_slice_header_t *sh,
 135                                     x264_sps_t *sps, x264_pps_t *pps,
 136                                     int i_type, int i_idr_pic_id, int i_frame, int i_qp )
 137 {
 138     x264_param_t *param = &h->param;
 139     int i;
 140
 141     /* First we fill all field */
 142     sh->sps = sps;
 143     sh->pps = pps;
 144
 145     sh->i_type      = i_type;
 146     sh->i_first_mb  = 0;
 147     sh->i_last_mb   = h->sps->i_mb_width * h->sps->i_mb_height;
 148     sh->i_pps_id    = pps->i_id;
 149
 150     sh->i_frame_num = i_frame;
 151
 152     sh->b_field_pic = 0;    /* Not field support for now */
 153     sh->b_bottom_field = 1; /* not yet used */
 154
 155     sh->i_idr_pic_id = i_idr_pic_id;
 156
 157     /* poc stuff, fixed later */
 158     sh->i_poc_lsb = 0;
 159     sh->i_delta_poc_bottom = 0;
 160     sh->i_delta_poc[0] = 0;
 161     sh->i_delta_poc[1] = 0;
 162
 163     sh->i_redundant_pic_cnt = 0;
 164
 165     sh->b_direct_spatial_mv_pred = ( param->analyse.i_direct_mv_pred == X264_DIRECT_PRED_SPATIAL );
 166
 167     sh->b_num_ref_idx_override = 0;
 168     sh->i_num_ref_idx_l0_active = 1;
 169     sh->i_num_ref_idx_l1_active = 1;
 170
 171     sh->b_ref_pic_list_reordering_l0 = h->b_ref_reorder[0];
 172     sh->b_ref_pic_list_reordering_l1 = h->b_ref_reorder[1];
 173
 174     /* If the ref list isn't in the default order, construct reordering header */
 175     /* List1 reordering isn't needed yet */
 176     if( sh->b_ref_pic_list_reordering_l0 )
 177     {
 178         int pred_frame_num = i_frame;
 179         for( i = 0; i < h->i_ref0; i++ )
 180         {
 181             int diff = h->fref0[i]->i_frame_num - pred_frame_num;
 182             if( diff == 0 )
 183                 x264_log( h, X264_LOG_ERROR, "diff frame num == 0\n" );
 184             sh->ref_pic_list_order[0][i].idc = ( diff > 0 );
 185             sh->ref_pic_list_order[0][i].arg = abs( diff ) - 1;
 186             pred_frame_num = h->fref0[i]->i_frame_num;
 187         }
 188     }
 189
 190     sh->i_cabac_init_idc = param->i_cabac_init_idc;
 191
 192     sh->i_qp_delta = i_qp - pps->i_pic_init_qp;
 193     sh->b_sp_for_swidth = 0;
 194     sh->i_qs_delta = 0;
 195
 196     /* If effective qp <= 15, deblocking would have no effect anyway */
 197     if( param->b_deblocking_filter
 198         && ( h->mb.b_variable_qp
 199         || 15 < i_qp + X264_MAX(param->i_deblocking_filter_alphac0, param->i_deblocking_filter_beta) ) )
 200     {
 201         sh->i_disable_deblocking_filter_idc = 0;
 202     }
 203     else
 204     {
 205         sh->i_disable_deblocking_filter_idc = 1;
 206     }
 207     sh->i_alpha_c0_offset = param->i_deblocking_filter_alphac0 << 1;
 208     sh->i_beta_offset = param->i_deblocking_filter_beta << 1;
 209 }
 210
 211 static void x264_slice_header_write( bs_t *s, x264_slice_header_t *sh, int i_nal_ref_idc )
 212 {
 213     int i;
 214
 215     bs_write_ue( s, sh->i_first_mb );
 216     bs_write_ue( s, sh->i_type + 5 );   /* same type things */
 217     bs_write_ue( s, sh->i_pps_id );
 218     bs_write( s, sh->sps->i_log2_max_frame_num, sh->i_frame_num );
 219
 220     if( sh->i_idr_pic_id >= 0 ) /* NAL IDR */
 221     {
 222         bs_write_ue( s, sh->i_idr_pic_id );
 223     }
 224
 225     if( sh->sps->i_poc_type == 0 )
 226     {
 227         bs_write( s, sh->sps->i_log2_max_poc_lsb, sh->i_poc_lsb );
 228         if( sh->pps->b_pic_order && !sh->b_field_pic )
 229         {
 230             bs_write_se( s, sh->i_delta_poc_bottom );
 231         }
 232     }
 233     else if( sh->sps->i_poc_type == 1 && !sh->sps->b_delta_pic_order_always_zero )
 234     {
 235         bs_write_se( s, sh->i_delta_poc[0] );
 236         if( sh->pps->b_pic_order && !sh->b_field_pic )
 237         {
 238             bs_write_se( s, sh->i_delta_poc[1] );
 239         }
 240     }
 241
 242     if( sh->pps->b_redundant_pic_cnt )
 243     {
 244         bs_write_ue( s, sh->i_redundant_pic_cnt );
 245     }
 246
 247     if( sh->i_type == SLICE_TYPE_B )
 248     {
 249         bs_write1( s, sh->b_direct_spatial_mv_pred );
 250     }
 251     if( sh->i_type == SLICE_TYPE_P || sh->i_type == SLICE_TYPE_SP || sh->i_type == SLICE_TYPE_B )
 252     {
 253         bs_write1( s, sh->b_num_ref_idx_override );
 254         if( sh->b_num_ref_idx_override )
 255         {
 256             bs_write_ue( s, sh->i_num_ref_idx_l0_active - 1 );
 257             if( sh->i_type == SLICE_TYPE_B )
 258             {
 259                 bs_write_ue( s, sh->i_num_ref_idx_l1_active - 1 );
 260             }
 261         }
 262     }
 263
 264     /* ref pic list reordering */
 265     if( sh->i_type != SLICE_TYPE_I )
 266     {
 267         bs_write1( s, sh->b_ref_pic_list_reordering_l0 );
 268         if( sh->b_ref_pic_list_reordering_l0 )
 269         {
 270             for( i = 0; i < sh->i_num_ref_idx_l0_active; i++ )
 271             {
 272                 bs_write_ue( s, sh->ref_pic_list_order[0][i].idc );
 273                 bs_write_ue( s, sh->ref_pic_list_order[0][i].arg );
 274
 275             }
 276             bs_write_ue( s, 3 );
 277         }
 278     }
 279     if( sh->i_type == SLICE_TYPE_B )
 280     {
 281         bs_write1( s, sh->b_ref_pic_list_reordering_l1 );
 282         if( sh->b_ref_pic_list_reordering_l1 )
 283         {
 284             for( i = 0; i < sh->i_num_ref_idx_l1_active; i++ )
 285             {
 286                 bs_write_ue( s, sh->ref_pic_list_order[1][i].idc );
 287                 bs_write_ue( s, sh->ref_pic_list_order[1][i].arg );
 288             }
 289             bs_write_ue( s, 3 );
 290         }
 291     }
 292
 293     if( ( sh->pps->b_weighted_pred && ( sh->i_type == SLICE_TYPE_P || sh->i_type == SLICE_TYPE_SP ) ) ||
 294         ( sh->pps->b_weighted_bipred == 1 && sh->i_type == SLICE_TYPE_B ) )
 295     {
 296         /* FIXME */
 297     }
 298
 299     if( i_nal_ref_idc != 0 )
 300     {
 301         if( sh->i_idr_pic_id >= 0 )
 302         {
 303             bs_write1( s, 0 );  /* no output of prior pics flag */
 304             bs_write1( s, 0 );  /* long term reference flag */
 305         }
 306         else
 307         {
 308             bs_write1( s, 0 );  /* adaptive_ref_pic_marking_mode_flag */
 309             /* FIXME */
 310         }
 311     }
 312
 313     if( sh->pps->b_cabac && sh->i_type != SLICE_TYPE_I )
 314     {
 315         bs_write_ue( s, sh->i_cabac_init_idc );
 316     }
 317     bs_write_se( s, sh->i_qp_delta );      /* slice qp delta */
 318 #if 0
 319     if( sh->i_type == SLICE_TYPE_SP || sh->i_type == SLICE_TYPE_SI )
 320     {
 321         if( sh->i_type == SLICE_TYPE_SP )
 322         {
 323             bs_write1( s, sh->b_sp_for_swidth );
 324         }
 325         bs_write_se( s, sh->i_qs_delta );
 326     }
 327 #endif
 328
 329     if( sh->pps->b_deblocking_filter_control )
 330     {
 331         bs_write_ue( s, sh->i_disable_deblocking_filter_idc );
 332         if( sh->i_disable_deblocking_filter_idc != 1 )
 333         {
 334             bs_write_se( s, sh->i_alpha_c0_offset >> 1 );
 335             bs_write_se( s, sh->i_beta_offset >> 1 );
 336         }
 337     }
 338 }
 339
 340 /****************************************************************************
 341  *
 342  ****************************************************************************
 343  ****************************** External API*********************************
 344  ****************************************************************************
 345  *
 346  ****************************************************************************/
 347
 348 static int x264_validate_parameters( x264_t *h )
 349 {
 350     if( h->param.i_width <= 0 || h->param.i_height <= 0 )
 351     {
 352         x264_log( h, X264_LOG_ERROR, "invalid width x height (%dx%d)\n",
 353                   h->param.i_width, h->param.i_height );
 354         return -1;
 355     }
 356
 357     if( h->param.i_width % 16 != 0 || h->param.i_height % 16 != 0 )
 358     {
 359         x264_log( h, X264_LOG_ERROR, "width %% 16 != 0 or height %% 16 != 0 (%dx%d)\n",
 360                   h->param.i_width, h->param.i_height );
 361         return -1;
 362     }
 363     if( h->param.i_csp != X264_CSP_I420 )
 364     {
 365         x264_log( h, X264_LOG_ERROR, "invalid CSP (only I420 supported)\n" );
 366         return -1;
 367     }
 368
 369     h->param.i_threads = x264_clip3( h->param.i_threads, 1, X264_SLICE_MAX );
 370     h->param.i_threads = X264_MIN( h->param.i_threads, h->param.i_height / 16 );
 371 #if !(HAVE_PTHREAD)
 372     if( h->param.i_threads > 1 )
 373     {
 374         x264_log( h, X264_LOG_WARNING, "not compiled with pthread support!\n");
 375         x264_log( h, X264_LOG_WARNING, "multislicing anyway, but you won't see any speed gain.\n" );
 376     }
 377 #endif
 378
 379     h->param.i_frame_reference = x264_clip3( h->param.i_frame_reference, 1, 16 );
 380     if( h->param.i_keyint_max <= 0 )
 381         h->param.i_keyint_max = 1;
 382     h->param.i_keyint_min = x264_clip3( h->param.i_keyint_min, 1, h->param.i_keyint_max/2+1 );
 383
 384     h->param.i_bframe = x264_clip3( h->param.i_bframe, 0, X264_BFRAME_MAX );
 385     h->param.i_bframe_bias = x264_clip3( h->param.i_bframe_bias, -90, 100 );
 386     h->param.b_bframe_pyramid = h->param.b_bframe_pyramid && h->param.i_bframe > 1;
 387     h->frames.i_delay = h->param.i_bframe;
 388     h->frames.i_max_ref0 = h->param.i_frame_reference;
 389     h->frames.i_max_ref1 = h->param.b_bframe_pyramid ? 2
 390                             : h->param.i_bframe ? 1 : 0;
 391     h->frames.i_max_dpb = X264_MIN( 16, h->frames.i_max_ref0 + h->frames.i_max_ref1 ) + 1;
 392
 393     h->param.i_deblocking_filter_alphac0 = x264_clip3( h->param.i_deblocking_filter_alphac0, -6, 6 );
 394     h->param.i_deblocking_filter_beta    = x264_clip3( h->param.i_deblocking_filter_beta, -6, 6 );
 395
 396     h->param.i_cabac_init_idc = x264_clip3( h->param.i_cabac_init_idc, -1, 2 );
 397     /* don't yet support merging of cabac stats */
 398     if( h->param.i_threads > 1 && h->param.i_cabac_init_idc == -1 )
 399         h->param.i_cabac_init_idc = 0;
 400
 401     if( h->param.analyse.i_me_method < X264_ME_DIA ||
 402         h->param.analyse.i_me_method > X264_ME_ESA )
 403         h->param.analyse.i_me_method = X264_ME_HEX;
 404     if( h->param.analyse.i_me_range < 4 )
 405         h->param.analyse.i_me_range = 4;
 406     if( h->param.analyse.i_me_range > 16 && h->param.analyse.i_me_method <= X264_ME_HEX )
 407         h->param.analyse.i_me_range = 16;
 408     h->param.analyse.i_subpel_refine = x264_clip3( h->param.analyse.i_subpel_refine, 1, 5 );
 409     if( !(h->param.analyse.inter & X264_ANALYSE_PSUB16x16) )
 410         h->param.analyse.inter &= ~X264_ANALYSE_PSUB8x8;
 411     if( !h->param.analyse.b_transform_8x8 )
 412     {
 413         h->param.analyse.inter &= ~X264_ANALYSE_I8x8;
 414         h->param.analyse.intra &= ~X264_ANALYSE_I8x8;
 415     }
 416     h->param.analyse.i_chroma_qp_offset = x264_clip3(h->param.analyse.i_chroma_qp_offset, -12, 12);
 417     h->param.analyse.i_mv_range = x264_clip3(h->param.analyse.i_mv_range, 32, 2048);
 418
 419     if( h->param.rc.f_qblur < 0 )
 420         h->param.rc.f_qblur = 0;
 421     if( h->param.rc.f_complexity_blur < 0 )
 422         h->param.rc.f_complexity_blur = 0;
 423     h->param.rc.i_qp_constant = x264_clip3(h->param.rc.i_qp_constant, 0, 51);
 424
 425     return 0;
 426 }
 427
 428 /****************************************************************************
 429  * x264_encoder_open:
 430  ****************************************************************************/
 431 x264_t *x264_encoder_open   ( x264_param_t *param )
 432 {
 433     x264_t *h = x264_malloc( sizeof( x264_t ) );
 434     int i;
 435
 436     memset( h, 0, sizeof( x264_t ) );
 437
 438     /* Create a copy of param */
 439     memcpy( &h->param, param, sizeof( x264_param_t ) );
 440
 441     if( x264_validate_parameters( h ) < 0 )
 442     {
 443         x264_free( h );
 444         return NULL;
 445     }
 446
 447     if( h->param.rc.psz_stat_out )
 448         h->param.rc.psz_stat_out = strdup( h->param.rc.psz_stat_out );
 449     if( h->param.rc.psz_stat_in )
 450         h->param.rc.psz_stat_in = strdup( h->param.rc.psz_stat_in );
 451     if( h->param.rc.psz_rc_eq )
 452         h->param.rc.psz_rc_eq = strdup( h->param.rc.psz_rc_eq );
 453
 454     /* VUI */
 455     if( h->param.vui.i_sar_width > 0 && h->param.vui.i_sar_height > 0 )
 456     {
 457         int i_w = param->vui.i_sar_width;
 458         int i_h = param->vui.i_sar_height;
 459         int a = i_w, b = i_h;
 460
 461         while( b != 0 )
 462         {
 463             int t = a;
 464
 465             a = b;
 466             b = t % b;
 467         }
 468
 469         i_w /= a;
 470         i_h /= a;
 471         while( i_w > 65535 || i_h > 65535 )
 472         {
 473             i_w /= 2;
 474             i_h /= 2;
 475         }
 476
 477         h->param.vui.i_sar_width = 0;
 478         h->param.vui.i_sar_height = 0;
 479         if( i_w == 0 || i_h == 0 )
 480         {
 481             x264_log( h, X264_LOG_ERROR, "cannot create valid sample aspect ratio\n" );
 482         }
 483         else if( i_w == i_h )
 484         {
 485             x264_log( h, X264_LOG_INFO, "no need for a SAR\n" );
 486         }
 487         else
 488         {
 489             x264_log( h, X264_LOG_INFO, "using SAR=%d/%d\n", i_w, i_h );
 490             h->param.vui.i_sar_width = i_w;
 491             h->param.vui.i_sar_height = i_h;
 492         }
 493     }
 494
 495
 496     /* Init x264_t */
 497     h->out.i_nal = 0;
 498     h->out.i_bitstream = 1000000; /* FIXME estimate max size (idth/height) */
 499     h->out.p_bitstream = x264_malloc( h->out.i_bitstream );
 500
 501     h->i_frame = 0;
 502     h->i_frame_num = 0;
 503     h->i_idr_pic_id = 0;
 504
 505     h->sps = &h->sps_array[0];
 506     x264_sps_init( h->sps, 0, &h->param );
 507
 508     h->pps = &h->pps_array[0];
 509     x264_pps_init( h->pps, 0, &h->param, h->sps);
 510
 511     h->mb.i_mb_count = h->sps->i_mb_width * h->sps->i_mb_height;
 512
 513     /* Init frames. */
 514     for( i = 0; i < X264_BFRAME_MAX + 3; i++ )
 515     {
 516         h->frames.current[i] = NULL;
 517         h->frames.next[i]    = NULL;
 518         h->frames.unused[i]  = NULL;
 519     }
 520     for( i = 0; i < 1 + h->frames.i_delay; i++ )
 521     {
 522         h->frames.unused[i] =  x264_frame_new( h );
 523     }
 524     for( i = 0; i < h->frames.i_max_dpb; i++ )
 525     {
 526         h->frames.reference[i] = x264_frame_new( h );
 527     }
 528     h->frames.reference[h->frames.i_max_dpb] = NULL;
 529     h->frames.i_last_idr = - h->param.i_keyint_max;
 530     h->frames.i_input    = 0;
 531     h->frames.last_nonb  = NULL;
 532
 533     h->i_ref0 = 0;
 534     h->i_ref1 = 0;
 535
 536     h->fdec = h->frames.reference[0];
 537
 538     /* init mb cache */
 539     x264_macroblock_cache_init( h );
 540
 541     /* init cabac adaptive model */
 542     x264_cabac_model_init( &h->cabac );
 543
 544     /* init CPU functions */
 545     x264_predict_16x16_init( h->param.cpu, h->predict_16x16 );
 546     x264_predict_8x8c_init( h->param.cpu, h->predict_8x8c );
 547     x264_predict_8x8_init( h->param.cpu, h->predict_8x8 );
 548     x264_predict_4x4_init( h->param.cpu, h->predict_4x4 );
 549
 550     x264_pixel_init( h->param.cpu, &h->pixf );
 551     x264_dct_init( h->param.cpu, &h->dctf );
 552     x264_mc_init( h->param.cpu, &h->mc );
 553     x264_csp_init( h->param.cpu, h->param.i_csp, &h->csp );
 554
 555     /* rate control */
 556     if( x264_ratecontrol_new( h ) < 0 )
 557         return NULL;
 558
 559     x264_log( h, X264_LOG_INFO, "using cpu capabilities %s%s%s%s%s%s\n",
 560              param->cpu&X264_CPU_MMX ? "MMX " : "",
 561              param->cpu&X264_CPU_MMXEXT ? "MMXEXT " : "",
 562              param->cpu&X264_CPU_SSE ? "SSE " : "",
 563              param->cpu&X264_CPU_SSE2 ? "SSE2 " : "",
 564              param->cpu&X264_CPU_3DNOW ? "3DNow! " : "",
 565              param->cpu&X264_CPU_ALTIVEC ? "Altivec " : "" );
 566
 567     h->thread[0] = h;
 568     for( i = 1; i < param->i_threads; i++ )
 569         h->thread[i] = x264_malloc( sizeof(x264_t) );
 570
 571     return h;
 572 }
 573
 574 /****************************************************************************
 575  * x264_encoder_reconfig:
 576  ****************************************************************************/
 577 int x264_encoder_reconfig( x264_t *h, x264_param_t *param )
 578 {
 579     h->param.i_bframe_bias = param->i_bframe_bias;
 580     h->param.i_deblocking_filter_alphac0 = param->i_deblocking_filter_alphac0;
 581     h->param.i_deblocking_filter_beta    = param->i_deblocking_filter_beta;
 582     h->param.analyse.i_me_method = param->analyse.i_me_method;
 583     h->param.analyse.i_me_range = param->analyse.i_me_range;
 584     h->param.analyse.i_subpel_refine = param->analyse.i_subpel_refine;
 585     h->param.analyse.intra = param->analyse.intra;
 586     h->param.analyse.inter = param->analyse.inter;
 587     if( h->sps->b_direct8x8_inference && h->param.i_bframe
 588         && h->param.analyse.i_direct_mv_pred == X264_DIRECT_PRED_TEMPORAL )
 589         h->param.analyse.inter &= ~X264_ANALYSE_PSUB8x8;
 590     return x264_validate_parameters( h );
 591 }
 592
 593 /* internal usage */
 594 static void x264_nal_start( x264_t *h, int i_type, int i_ref_idc )
 595 {
 596     x264_nal_t *nal = &h->out.nal[h->out.i_nal];
 597
 598     nal->i_ref_idc = i_ref_idc;
 599     nal->i_type    = i_type;
 600
 601     bs_align_0( &h->out.bs );   /* not needed */
 602
 603     nal->i_payload= 0;
 604     nal->p_payload= &h->out.p_bitstream[bs_pos( &h->out.bs) / 8];
 605 }
 606 static void x264_nal_end( x264_t *h )
 607 {
 608     x264_nal_t *nal = &h->out.nal[h->out.i_nal];
 609
 610     bs_align_0( &h->out.bs );   /* not needed */
 611
 612     nal->i_payload = &h->out.p_bitstream[bs_pos( &h->out.bs)/8] - nal->p_payload;
 613
 614     h->out.i_nal++;
 615 }
 616
 617 /****************************************************************************
 618  * x264_encoder_headers:
 619  ****************************************************************************/
 620 int x264_encoder_headers( x264_t *h, x264_nal_t **pp_nal, int *pi_nal )
 621 {
 622     /* init bitstream context */
 623     h->out.i_nal = 0;
 624     bs_init( &h->out.bs, h->out.p_bitstream, h->out.i_bitstream );
 625
 626     /* Put SPS and PPS */
 627     if( h->i_frame == 0 )
 628     {
 629         /* identify ourself */
 630         x264_nal_start( h, NAL_SEI, NAL_PRIORITY_DISPOSABLE );
 631         x264_sei_version_write( &h->out.bs );
 632         x264_nal_end( h );
 633
 634         /* generate sequence parameters */
 635         x264_nal_start( h, NAL_SPS, NAL_PRIORITY_HIGHEST );
 636         x264_sps_write( &h->out.bs, h->sps );
 637         x264_nal_end( h );
 638
 639         /* generate picture parameters */
 640         x264_nal_start( h, NAL_PPS, NAL_PRIORITY_HIGHEST );
 641         x264_pps_write( &h->out.bs, h->pps );
 642         x264_nal_end( h );
 643     }
 644     /* now set output*/
 645     *pi_nal = h->out.i_nal;
 646     *pp_nal = &h->out.nal[0];
 647
 648     return 0;
 649 }
 650
 651
 652 static void x264_frame_put( x264_frame_t *list[X264_BFRAME_MAX], x264_frame_t *frame )
 653 {
 654     int i = 0;
 655     while( list[i] ) i++;
 656     list[i] = frame;
 657 }
 658
 659 static void x264_frame_push( x264_frame_t *list[X264_BFRAME_MAX], x264_frame_t *frame )
 660 {
 661     int i = 0;
 662     while( list[i] ) i++;
 663     while( i-- )
 664         list[i+1] = list[i];
 665     list[0] = frame;
 666 }
 667
 668 static x264_frame_t *x264_frame_get( x264_frame_t *list[X264_BFRAME_MAX+1] )
 669 {
 670     x264_frame_t *frame = list[0];
 671     int i;
 672     for( i = 0; list[i]; i++ )
 673         list[i] = list[i+1];
 674     return frame;
 675 }
 676
 677 static void x264_frame_sort( x264_frame_t *list[X264_BFRAME_MAX+1], int b_dts )
 678 {
 679     int i, b_ok;
 680     do {
 681         b_ok = 1;
 682         for( i = 0; list[i+1]; i++ )
 683         {
 684             int dtype = list[i]->i_type - list[i+1]->i_type;
 685             int dtime = list[i]->i_frame - list[i+1]->i_frame;
 686             int swap = b_dts ? dtype > 0 || ( dtype == 0 && dtime > 0 )
 687                              : dtime > 0;
 688             if( swap )
 689             {
 690                 x264_frame_t *tmp = list[i+1];
 691                 list[i+1] = list[i];
 692                 list[i] = tmp;
 693                 b_ok = 0;
 694             }
 695         }
 696     } while( !b_ok );
 697 }
 698 #define x264_frame_sort_dts(list) x264_frame_sort(list, 1)
 699 #define x264_frame_sort_pts(list) x264_frame_sort(list, 0)
 700
 701 static inline void x264_reference_build_list( x264_t *h, int i_poc, int i_slice_type )
 702 {
 703     int i;
 704     int b_ok;
 705
 706     /* build ref list 0/1 */
 707     h->i_ref0 = 0;
 708     h->i_ref1 = 0;
 709     for( i = 1; i < h->frames.i_max_dpb; i++ )
 710     {
 711         if( h->frames.reference[i]->i_poc >= 0 )
 712         {
 713             if( h->frames.reference[i]->i_poc < i_poc )
 714             {
 715                 h->fref0[h->i_ref0++] = h->frames.reference[i];
 716             }
 717             else if( h->frames.reference[i]->i_poc > i_poc )
 718             {
 719                 h->fref1[h->i_ref1++] = h->frames.reference[i];
 720             }
 721         }
 722     }
 723
 724     /* Order ref0 from higher to lower poc */
 725     do
 726     {
 727         b_ok = 1;
 728         for( i = 0; i < h->i_ref0 - 1; i++ )
 729         {
 730             if( h->fref0[i]->i_poc < h->fref0[i+1]->i_poc )
 731             {
 732                 x264_frame_t *tmp = h->fref0[i+1];
 733
 734                 h->fref0[i+1] = h->fref0[i];
 735                 h->fref0[i] = tmp;
 736                 b_ok = 0;
 737                 break;
 738             }
 739         }
 740     } while( !b_ok );
 741     /* Order ref1 from lower to higher poc (bubble sort) for B-frame */
 742     do
 743     {
 744         b_ok = 1;
 745         for( i = 0; i < h->i_ref1 - 1; i++ )
 746         {
 747             if( h->fref1[i]->i_poc > h->fref1[i+1]->i_poc )
 748             {
 749                 x264_frame_t *tmp = h->fref1[i+1];
 750
 751                 h->fref1[i+1] = h->fref1[i];
 752                 h->fref1[i] = tmp;
 753                 b_ok = 0;
 754                 break;
 755             }
 756         }
 757     } while( !b_ok );
 758
 759     /* In the standard, a P-frame's ref list is sorted by frame_num.
 760      * We use POC, but check whether explicit reordering is needed */
 761     h->b_ref_reorder[0] =
 762     h->b_ref_reorder[1] = 0;
 763     if( i_slice_type == SLICE_TYPE_P )
 764     {
 765         for( i = 0; i < h->i_ref0 - 1; i++ )
 766             if( h->fref0[i]->i_frame_num < h->fref0[i+1]->i_frame_num )
 767             {
 768                 h->b_ref_reorder[0] = 1;
 769                 break;
 770             }
 771     }
 772
 773     h->i_ref1 = X264_MIN( h->i_ref1, h->frames.i_max_ref1 );
 774     h->i_ref0 = X264_MIN( h->i_ref0, h->frames.i_max_ref0 );
 775     h->i_ref0 = X264_MIN( h->i_ref0, 16 - h->i_ref1 );
 776 }
 777
 778 static inline void x264_reference_update( x264_t *h )
 779 {
 780     int i;
 781
 782     /* apply deblocking filter to the current decoded picture */
 783     if( !h->sh.i_disable_deblocking_filter_idc )
 784     {
 785         TIMER_START( i_mtime_filter );
 786         x264_frame_deblocking_filter( h, h->sh.i_type );
 787         TIMER_STOP( i_mtime_filter );
 788     }
 789     /* expand border */
 790     x264_frame_expand_border( h->fdec );
 791
 792     /* create filtered images */
 793     x264_frame_filter( h->param.cpu, h->fdec );
 794
 795     /* expand border of filtered images */
 796     x264_frame_expand_border_filtered( h->fdec );
 797
 798     /* move lowres copy of the image to the ref frame */
 799     for( i = 0; i < 4; i++)
 800     {
 801         uint8_t *tmp = h->fdec->lowres[i];
 802         h->fdec->lowres[i] = h->fenc->lowres[i];
 803         h->fenc->lowres[i] = tmp;
 804     }
 805
 806     /* adaptive B decision needs a pointer, since it can't use the ref lists */
 807     if( h->sh.i_type != SLICE_TYPE_B )
 808         h->frames.last_nonb = h->fdec;
 809
 810     /* move frame in the buffer */
 811     /* FIXME: override to forget earliest pts, not earliest dts */
 812     h->fdec = h->frames.reference[h->frames.i_max_dpb-1];
 813     for( i = h->frames.i_max_dpb-1; i > 0; i-- )
 814     {
 815         h->frames.reference[i] = h->frames.reference[i-1];
 816     }
 817     h->frames.reference[0] = h->fdec;
 818 }
 819
 820 static inline void x264_reference_reset( x264_t *h )
 821 {
 822     int i;
 823
 824     /* reset ref pictures */
 825     for( i = 1; i < h->frames.i_max_dpb; i++ )
 826     {
 827         h->frames.reference[i]->i_poc = -1;
 828     }
 829     h->frames.reference[0]->i_poc = 0;
 830 }
 831
 832 static inline void x264_slice_init( x264_t *h, int i_nal_type, int i_slice_type, int i_global_qp )
 833 {
 834     /* ------------------------ Create slice header  ----------------------- */
 835     if( i_nal_type == NAL_SLICE_IDR )
 836     {
 837         x264_slice_header_init( h, &h->sh, h->sps, h->pps, i_slice_type, h->i_idr_pic_id, h->i_frame_num - 1, i_global_qp );
 838
 839         /* increment id */
 840         h->i_idr_pic_id = ( h->i_idr_pic_id + 1 ) % 65536;
 841     }
 842     else
 843     {
 844         x264_slice_header_init( h, &h->sh, h->sps, h->pps, i_slice_type, -1, h->i_frame_num - 1, i_global_qp );
 845
 846         /* always set the real higher num of ref frame used */
 847         h->sh.b_num_ref_idx_override = 1;
 848         h->sh.i_num_ref_idx_l0_active = h->i_ref0 <= 0 ? 1 : h->i_ref0;
 849         h->sh.i_num_ref_idx_l1_active = h->i_ref1 <= 0 ? 1 : h->i_ref1;
 850     }
 851
 852     h->fdec->i_frame_num = h->sh.i_frame_num;
 853
 854     if( h->sps->i_poc_type == 0 )
 855     {
 856         h->sh.i_poc_lsb = h->fdec->i_poc & ( (1 << h->sps->i_log2_max_poc_lsb) - 1 );
 857         h->sh.i_delta_poc_bottom = 0;   /* XXX won't work for field */
 858     }
 859     else if( h->sps->i_poc_type == 1 )
 860     {
 861         /* FIXME TODO FIXME */
 862     }
 863     else
 864     {
 865         /* Nothing to do ? */
 866     }
 867
 868     /* get adapative cabac model if needed */
 869     if( h->param.b_cabac )
 870     {
 871         if( h->param.i_cabac_init_idc == -1 )
 872         {
 873             h->sh.i_cabac_init_idc = x264_cabac_model_get( &h->cabac, i_slice_type );
 874         }
 875     }
 876
 877     x264_macroblock_slice_init( h );
 878 }
 879
 880 static int x264_slice_write( x264_t *h )
 881 {
 882     int i_skip;
 883     int mb_xy;
 884
 885     /* init stats */
 886     memset( &h->stat.frame, 0, sizeof(h->stat.frame) );
 887
 888     /* Slice */
 889     x264_nal_start( h, h->i_nal_type, h->i_nal_ref_idc );
 890
 891     /* Slice header */
 892     x264_slice_header_write( &h->out.bs, &h->sh, h->i_nal_ref_idc );
 893     if( h->param.b_cabac )
 894     {
 895         /* alignment needed */
 896         bs_align_1( &h->out.bs );
 897
 898         /* init cabac */
 899         x264_cabac_context_init( &h->cabac, h->sh.i_type, h->sh.pps->i_pic_init_qp + h->sh.i_qp_delta, h->sh.i_cabac_init_idc );
 900         x264_cabac_encode_init ( &h->cabac, &h->out.bs );
 901     }
 902     h->mb.i_last_qp = h->pps->i_pic_init_qp + h->sh.i_qp_delta;
 903     h->mb.i_last_dqp = 0;
 904
 905     for( mb_xy = h->sh.i_first_mb, i_skip = 0; mb_xy < h->sh.i_last_mb; mb_xy++ )
 906     {
 907         const int i_mb_y = mb_xy / h->sps->i_mb_width;
 908         const int i_mb_x = mb_xy % h->sps->i_mb_width;
 909
 910         int mb_spos = bs_pos(&h->out.bs);
 911
 912         /* load cache */
 913         x264_macroblock_cache_load( h, i_mb_x, i_mb_y );
 914
 915         /* analyse parameters
 916          * Slice I: choose I_4x4 or I_16x16 mode
 917          * Slice P: choose between using P mode or intra (4x4 or 16x16)
 918          * */
 919         TIMER_START( i_mtime_analyse );
 920         x264_macroblock_analyse( h );
 921         TIMER_STOP( i_mtime_analyse );
 922
 923         /* encode this macrobock -> be carefull it can change the mb type to P_SKIP if needed */
 924         TIMER_START( i_mtime_encode );
 925         x264_macroblock_encode( h );
 926         TIMER_STOP( i_mtime_encode );
 927
 928         TIMER_START( i_mtime_write );
 929         if( h->param.b_cabac )
 930         {
 931             if( mb_xy > h->sh.i_first_mb )
 932                 x264_cabac_encode_terminal( &h->cabac, 0 );
 933
 934             if( IS_SKIP( h->mb.i_type ) )
 935                 x264_cabac_mb_skip( h, 1 );
 936             else
 937             {
 938                 if( h->sh.i_type != SLICE_TYPE_I )
 939                     x264_cabac_mb_skip( h, 0 );
 940                 x264_macroblock_write_cabac( h, &h->out.bs );
 941             }
 942         }
 943         else
 944         {
 945             if( IS_SKIP( h->mb.i_type ) )
 946                 i_skip++;
 947             else
 948             {
 949                 if( h->sh.i_type != SLICE_TYPE_I )
 950                 {
 951                     bs_write_ue( &h->out.bs, i_skip );  /* skip run */
 952                     i_skip = 0;
 953                 }
 954                 x264_macroblock_write_cavlc( h, &h->out.bs );
 955             }
 956         }
 957         TIMER_STOP( i_mtime_write );
 958
 959 #if VISUALIZE
 960         if( h->param.b_visualize )
 961             x264_visualize_mb( h );
 962 #endif
 963
 964         /* save cache */
 965         x264_macroblock_cache_save( h );
 966
 967         h->stat.frame.i_mb_count[h->mb.i_type]++;
 968
 969         if( h->mb.b_variable_qp )
 970             x264_ratecontrol_mb(h, bs_pos(&h->out.bs) - mb_spos);
 971     }
 972
 973     if( h->param.b_cabac )
 974     {
 975         /* end of slice */
 976         x264_cabac_encode_terminal( &h->cabac, 1 );
 977     }
 978     else if( i_skip > 0 )
 979     {
 980         bs_write_ue( &h->out.bs, i_skip );  /* last skip run */
 981     }
 982
 983     if( h->param.b_cabac )
 984     {
 985         int i_cabac_word;
 986         x264_cabac_encode_flush( &h->cabac );
 987         /* TODO cabac stuffing things (p209) */
 988         i_cabac_word = (((3 * h->cabac.i_sym_cnt - 3 * 96 * h->sps->i_mb_width * h->sps->i_mb_height)/32) - bs_pos( &h->out.bs)/8)/3;
 989
 990         while( i_cabac_word > 0 )
 991         {
 992             bs_write( &h->out.bs, 16, 0x0000 );
 993             i_cabac_word--;
 994         }
 995     }
 996     else
 997     {
 998         /* rbsp_slice_trailing_bits */
 999         bs_rbsp_trailing( &h->out.bs );
1000     }
1001
1002     x264_nal_end( h );
1003
1004     /* Compute misc bits */
1005     h->stat.frame.i_misc_bits = bs_pos( &h->out.bs )
1006                               + NALU_OVERHEAD * 8
1007                               - h->stat.frame.i_itex_bits
1008                               - h->stat.frame.i_ptex_bits
1009                               - h->stat.frame.i_hdr_bits;
1010
1011     return 0;
1012 }
1013
1014 static inline int x264_slices_write( x264_t *h )
1015 {
1016     int i_frame_size;
1017
1018 #if VISUALIZE
1019     if( h->param.b_visualize )
1020         x264_visualize_init( h );
1021 #endif
1022
1023     if( h->param.i_threads == 1 )
1024     {
1025         x264_slice_write( h );
1026         i_frame_size = h->out.nal[h->out.i_nal-1].i_payload;
1027     }
1028     else
1029     {
1030         int i_nal = h->out.i_nal;
1031         int i_bs_size = h->out.i_bitstream / h->param.i_threads;
1032         int i;
1033         /* duplicate contexts */
1034         for( i = 0; i < h->param.i_threads; i++ )
1035         {
1036             x264_t *t = h->thread[i];
1037             if( i > 0 )
1038             {
1039                 memcpy( t, h, sizeof(x264_t) );
1040                 t->out.p_bitstream += i*i_bs_size;
1041                 bs_init( &t->out.bs, t->out.p_bitstream, i_bs_size );
1042             }
1043             t->sh.i_first_mb = (i    * h->sps->i_mb_height / h->param.i_threads) * h->sps->i_mb_width;
1044             t->sh.i_last_mb = ((i+1) * h->sps->i_mb_height / h->param.i_threads) * h->sps->i_mb_width;
1045             t->out.i_nal = i_nal + i;
1046         }
1047
1048         /* dispatch */
1049 #if HAVE_PTHREAD
1050         {
1051             pthread_t handles[X264_SLICE_MAX];
1052             void *status;
1053             for( i = 0; i < h->param.i_threads; i++ )
1054                 pthread_create( &handles[i], NULL, (void*)x264_slice_write, (void*)h->thread[i] );
1055             for( i = 0; i < h->param.i_threads; i++ )
1056                 pthread_join( handles[i], &status );
1057         }
1058 #else
1059         for( i = 0; i < h->param.i_threads; i++ )
1060             x264_slice_write( h->thread[i] );
1061 #endif
1062
1063         /* merge contexts */
1064         i_frame_size = h->out.nal[i_nal].i_payload;
1065         for( i = 1; i < h->param.i_threads; i++ )
1066         {
1067             int j;
1068             x264_t *t = h->thread[i];
1069             h->out.nal[i_nal+i] = t->out.nal[i_nal+i];
1070             i_frame_size += t->out.nal[i_nal+i].i_payload;
1071             // all entries in stat.frame are ints
1072             for( j = 0; j < sizeof(h->stat.frame) / sizeof(int); j++ )
1073                 ((int*)&h->stat.frame)[j] += ((int*)&t->stat.frame)[j];
1074         }
1075         h->out.i_nal = i_nal + h->param.i_threads;
1076     }
1077
1078 #if VISUALIZE
1079     if( h->param.b_visualize )
1080     {
1081         x264_visualize_show( h );
1082         x264_visualize_close( h );
1083     }
1084 #endif
1085
1086     return i_frame_size;
1087 }
1088
1089 /****************************************************************************
1090  * x264_encoder_encode:
1091  *  XXX: i_poc   : is the poc of the current given picture
1092  *       i_frame : is the number of the frame being coded
1093  *  ex:  type frame poc
1094  *       I      0   2*0
1095  *       P      1   2*3
1096  *       B      2   2*1
1097  *       B      3   2*2
1098  *       P      4   2*6
1099  *       B      5   2*4
1100  *       B      6   2*5
1101  ****************************************************************************/
1102 int     x264_encoder_encode( x264_t *h,
1103                              x264_nal_t **pp_nal, int *pi_nal,
1104                              x264_picture_t *pic_in,
1105                              x264_picture_t *pic_out )
1106 {
1107     x264_frame_t   *frame_psnr = h->fdec; /* just to keep the current decoded frame for psnr calculation */
1108     int     i_nal_type;
1109     int     i_nal_ref_idc;
1110     int     i_slice_type;
1111     int     i_frame_size;
1112
1113     int i;
1114
1115     int   i_global_qp;
1116
1117     char psz_message[80];
1118
1119     /* no data out */
1120     *pi_nal = 0;
1121     *pp_nal = NULL;
1122
1123
1124     /* ------------------- Setup new frame from picture -------------------- */
1125     TIMER_START( i_mtime_encode_frame );
1126     if( pic_in != NULL )
1127     {
1128         /* 1: Copy the picture to a frame and move it to a buffer */
1129         x264_frame_t *fenc = x264_frame_get( h->frames.unused );
1130
1131         x264_frame_copy_picture( h, fenc, pic_in );
1132
1133         fenc->i_frame = h->frames.i_input++;
1134
1135         x264_frame_put( h->frames.next, fenc );
1136
1137         x264_frame_init_lowres( h->param.cpu, fenc );
1138
1139         if( h->frames.i_input <= h->frames.i_delay )
1140         {
1141             /* Nothing yet to encode */
1142             /* waiting for filling bframe buffer */
1143             pic_out->i_type = X264_TYPE_AUTO;
1144             return 0;
1145         }
1146     }
1147
1148     if( h->frames.current[0] == NULL )
1149     {
1150         int bframes = 0;
1151         /* 2: Select frame types */
1152         if( h->frames.next[0] == NULL )
1153             return 0;
1154
1155         x264_slicetype_decide( h );
1156
1157         /* 3: move some B-frames and 1 non-B to encode queue */
1158         while( IS_X264_TYPE_B( h->frames.next[bframes]->i_type ) )
1159             bframes++;
1160         x264_frame_put( h->frames.current, x264_frame_get( &h->frames.next[bframes] ) );
1161         /* FIXME: when max B-frames > 3, BREF may no longer be centered after GOP closing */
1162         if( h->param.b_bframe_pyramid && bframes > 1 )
1163         {
1164             x264_frame_t *mid = x264_frame_get( &h->frames.next[bframes/2] );
1165             mid->i_type = X264_TYPE_BREF;
1166             x264_frame_put( h->frames.current, mid );
1167             bframes--;
1168         }
1169         while( bframes-- )
1170             x264_frame_put( h->frames.current, x264_frame_get( h->frames.next ) );
1171     }
1172     TIMER_STOP( i_mtime_encode_frame );
1173
1174     /* ------------------- Get frame to be encoded ------------------------- */
1175     /* 4: get picture to encode */
1176     h->fenc = x264_frame_get( h->frames.current );
1177     if( h->fenc == NULL )
1178     {
1179         /* Nothing yet to encode (ex: waiting for I/P with B frames) */
1180         /* waiting for filling bframe buffer */
1181         pic_out->i_type = X264_TYPE_AUTO;
1182         return 0;
1183     }
1184
1185 do_encode:
1186
1187     if( h->fenc->i_type == X264_TYPE_IDR )
1188     {
1189         h->frames.i_last_idr = h->fenc->i_frame;
1190     }
1191
1192     /* ------------------- Setup frame context ----------------------------- */
1193     /* 5: Init data dependant of frame type */
1194     TIMER_START( i_mtime_encode_frame );
1195     if( h->fenc->i_type == X264_TYPE_IDR )
1196     {
1197         /* reset ref pictures */
1198         x264_reference_reset( h );
1199
1200         i_nal_type    = NAL_SLICE_IDR;
1201         i_nal_ref_idc = NAL_PRIORITY_HIGHEST;
1202         i_slice_type = SLICE_TYPE_I;
1203     }
1204     else if( h->fenc->i_type == X264_TYPE_I )
1205     {
1206         i_nal_type    = NAL_SLICE;
1207         i_nal_ref_idc = NAL_PRIORITY_HIGH; /* Not completely true but for now it is (as all I/P are kept as ref)*/
1208         i_slice_type = SLICE_TYPE_I;
1209     }
1210     else if( h->fenc->i_type == X264_TYPE_P )
1211     {
1212         i_nal_type    = NAL_SLICE;
1213         i_nal_ref_idc = NAL_PRIORITY_HIGH; /* Not completely true but for now it is (as all I/P are kept as ref)*/
1214         i_slice_type = SLICE_TYPE_P;
1215     }
1216     else if( h->fenc->i_type == X264_TYPE_BREF )
1217     {
1218         i_nal_type    = NAL_SLICE;
1219         i_nal_ref_idc = NAL_PRIORITY_HIGH; /* maybe add MMCO to forget it? -> low */
1220         i_slice_type = SLICE_TYPE_B;
1221     }
1222     else    /* B frame */
1223     {
1224         i_nal_type    = NAL_SLICE;
1225         i_nal_ref_idc = NAL_PRIORITY_DISPOSABLE;
1226         i_slice_type = SLICE_TYPE_B;
1227     }
1228
1229     h->fdec->i_poc =
1230     h->fenc->i_poc = 2 * (h->fenc->i_frame - h->frames.i_last_idr);
1231     h->fdec->i_type = h->fenc->i_type;
1232     h->fdec->i_frame = h->fenc->i_frame;
1233     h->fenc->b_kept_as_ref =
1234     h->fdec->b_kept_as_ref = i_nal_ref_idc != NAL_PRIORITY_DISPOSABLE;
1235
1236
1237
1238     /* ------------------- Init                ----------------------------- */
1239     /* build ref list 0/1 */
1240     x264_reference_build_list( h, h->fdec->i_poc, i_slice_type );
1241
1242     /* Init the rate control */
1243     x264_ratecontrol_start( h, i_slice_type, h->fenc->i_qpplus1 );
1244     i_global_qp = x264_ratecontrol_qp( h );
1245
1246     pic_out->i_qpplus1 =
1247     h->fdec->i_qpplus1 = i_global_qp + 1;
1248
1249     if( i_slice_type == SLICE_TYPE_B )
1250         x264_macroblock_bipred_init( h );
1251
1252     /* increase frame num but only once for B frame */
1253     if( i_slice_type != SLICE_TYPE_B || h->sh.i_type != SLICE_TYPE_B )
1254     {
1255         h->i_frame_num++;
1256     }
1257
1258     /* ------------------------ Create slice header  ----------------------- */
1259     x264_slice_init( h, i_nal_type, i_slice_type, i_global_qp );
1260
1261     /* ---------------------- Write the bitstream -------------------------- */
1262     /* Init bitstream context */
1263     h->out.i_nal = 0;
1264     bs_init( &h->out.bs, h->out.p_bitstream, h->out.i_bitstream );
1265
1266     if(h->param.b_aud){
1267         int pic_type;
1268
1269         if(i_slice_type == SLICE_TYPE_I)
1270             pic_type = 0;
1271         else if(i_slice_type == SLICE_TYPE_P)
1272             pic_type = 1;
1273         else if(i_slice_type == SLICE_TYPE_B)
1274             pic_type = 2;
1275         else
1276             pic_type = 7;
1277
1278         x264_nal_start(h, NAL_AUD, NAL_PRIORITY_DISPOSABLE);
1279         bs_write(&h->out.bs, 3, pic_type);
1280         bs_rbsp_trailing(&h->out.bs);
1281         x264_nal_end(h);
1282     }
1283
1284     h->i_nal_type = i_nal_type;
1285     h->i_nal_ref_idc = i_nal_ref_idc;
1286
1287     /* Write SPS and PPS */
1288     if( i_nal_type == NAL_SLICE_IDR )
1289     {
1290         if( h->fenc->i_frame == 0 )
1291         {
1292             /* identify ourself */
1293             x264_nal_start( h, NAL_SEI, NAL_PRIORITY_DISPOSABLE );
1294             x264_sei_version_write( &h->out.bs );
1295             x264_nal_end( h );
1296         }
1297
1298         /* generate sequence parameters */
1299         x264_nal_start( h, NAL_SPS, NAL_PRIORITY_HIGHEST );
1300         x264_sps_write( &h->out.bs, h->sps );
1301         x264_nal_end( h );
1302
1303         /* generate picture parameters */
1304         x264_nal_start( h, NAL_PPS, NAL_PRIORITY_HIGHEST );
1305         x264_pps_write( &h->out.bs, h->pps );
1306         x264_nal_end( h );
1307     }
1308
1309     /* Write frame */
1310     i_frame_size = x264_slices_write( h );
1311
1312     /* restore CPU state (before using float again) */
1313     x264_cpu_restore( h->param.cpu );
1314
1315     if( i_slice_type == SLICE_TYPE_P && !h->param.rc.b_stat_read
1316         && h->param.i_scenecut_threshold >= 0 )
1317     {
1318         int i_mb_i = h->stat.frame.i_mb_count[I_4x4] + h->stat.frame.i_mb_count[I_16x16];
1319         int i_mb_p = h->stat.frame.i_mb_count[P_L0] + h->stat.frame.i_mb_count[P_8x8];
1320         int i_mb_s = h->stat.frame.i_mb_count[P_SKIP];
1321         int i_mb   = h->sps->i_mb_width * h->sps->i_mb_height;
1322         int64_t i_inter_cost = h->stat.frame.i_inter_cost;
1323         int64_t i_intra_cost = h->stat.frame.i_intra_cost;
1324
1325         float f_bias;
1326         int i_gop_size = h->fenc->i_frame - h->frames.i_last_idr;
1327         float f_thresh_max = h->param.i_scenecut_threshold / 100.0;
1328         /* magic numbers pulled out of thin air */
1329         float f_thresh_min = f_thresh_max * h->param.i_keyint_min
1330                              / ( h->param.i_keyint_max * 4 );
1331         if( h->param.i_keyint_min == h->param.i_keyint_max )
1332              f_thresh_min= f_thresh_max;
1333
1334         /* macroblock_analyse() doesn't further analyse skipped mbs,
1335          * so we have to guess their cost */
1336         if( i_mb_s < i_mb )
1337             i_intra_cost = i_intra_cost * i_mb / (i_mb - i_mb_s);
1338
1339         if( i_gop_size < h->param.i_keyint_min / 4 )
1340             f_bias = f_thresh_min / 4;
1341         else if( i_gop_size <= h->param.i_keyint_min )
1342             f_bias = f_thresh_min * i_gop_size / h->param.i_keyint_min;
1343         else
1344         {
1345             f_bias = f_thresh_min
1346                      + ( f_thresh_max - f_thresh_min )
1347                        * ( i_gop_size - h->param.i_keyint_min )
1348                        / ( h->param.i_keyint_max - h->param.i_keyint_min );
1349         }
1350         f_bias = X264_MIN( f_bias, 1.0 );
1351
1352         /* Bad P will be reencoded as I */
1353         if( i_mb_s < i_mb &&
1354             i_inter_cost >= (1.0 - f_bias) * i_intra_cost )
1355         {
1356             int b;
1357
1358             x264_log( h, X264_LOG_DEBUG, "scene cut at %d size=%d Icost:%.0f Pcost:%.0f ratio:%.3f bias=%.3f lastIDR:%d (I:%d P:%d Skip:%d)\n",
1359                       h->fenc->i_frame, i_frame_size,
1360                       (double)i_intra_cost, (double)i_inter_cost,
1361                       (double)i_inter_cost / i_intra_cost,
1362                       f_bias, i_gop_size,
1363                       i_mb_i, i_mb_p, i_mb_s );
1364
1365             /* Restore frame num */
1366             h->i_frame_num--;
1367
1368             for( b = 0; h->frames.current[b] && IS_X264_TYPE_B( h->frames.current[b]->i_type ); b++ );
1369             if( b > 0 )
1370             {
1371                 /* If using B-frames, force GOP to be closed.
1372                  * Even if this frame is going to be I and not IDR, forcing a
1373                  * P-frame before the scenecut will probably help compression.
1374                  *
1375                  * We don't yet know exactly which frame is the scene cut, so
1376                  * we can't assign an I-frame. Instead, change the previous
1377                  * B-frame to P, and rearrange coding order. */
1378
1379                 if( h->param.b_bframe_adaptive || b > 1 )
1380                     h->fenc->i_type = X264_TYPE_AUTO;
1381                 x264_frame_sort_pts( h->frames.current );
1382                 x264_frame_push( h->frames.next, h->fenc );
1383                 h->fenc = h->frames.current[b-1];
1384                 h->frames.current[b-1] = NULL;
1385                 h->fenc->i_type = X264_TYPE_P;
1386                 x264_frame_sort_dts( h->frames.current );
1387             }
1388             /* Do IDR if needed */
1389             else if( i_gop_size >= h->param.i_keyint_min )
1390             {
1391                 x264_frame_t *tmp;
1392
1393                 /* Reset */
1394                 h->i_frame_num = 0;
1395
1396                 /* Reinit field of fenc */
1397                 h->fenc->i_type = X264_TYPE_IDR;
1398                 h->fenc->i_poc = 0;
1399
1400                 /* Put enqueued frames back in the pool */
1401                 while( (tmp = x264_frame_get( h->frames.current ) ) != NULL )
1402                     x264_frame_put( h->frames.next, tmp );
1403                 x264_frame_sort_pts( h->frames.next );
1404             }
1405             else
1406             {
1407                 h->fenc->i_type = X264_TYPE_I;
1408             }
1409             goto do_encode;
1410         }
1411     }
1412
1413     /* End bitstream, set output  */
1414     *pi_nal = h->out.i_nal;
1415     *pp_nal = h->out.nal;
1416
1417     /* Set output picture properties */
1418     if( i_slice_type == SLICE_TYPE_I )
1419         pic_out->i_type = i_nal_type == NAL_SLICE_IDR ? X264_TYPE_IDR : X264_TYPE_I;
1420     else if( i_slice_type == SLICE_TYPE_P )
1421         pic_out->i_type = X264_TYPE_P;
1422     else
1423         pic_out->i_type = X264_TYPE_B;
1424     pic_out->i_pts = h->fenc->i_pts;
1425
1426     pic_out->img.i_plane = h->fdec->i_plane;
1427     for(i = 0; i < 4; i++){
1428         pic_out->img.i_stride[i] = h->fdec->i_stride[i];
1429         pic_out->img.plane[i] = h->fdec->plane[i];
1430     }
1431
1432     /* ---------------------- Update encoder state ------------------------- */
1433     /* update cabac */
1434     if( h->param.b_cabac && h->param.i_cabac_init_idc == -1 )
1435     {
1436         x264_cabac_model_update( &h->cabac, i_slice_type, h->sh.pps->i_pic_init_qp + h->sh.i_qp_delta );
1437     }
1438
1439     /* handle references */
1440     if( i_nal_ref_idc != NAL_PRIORITY_DISPOSABLE )
1441     {
1442         x264_reference_update( h );
1443     }
1444
1445     /* increase frame count */
1446     h->i_frame++;
1447
1448     /* restore CPU state (before using float again) */
1449     /* XXX: not needed? (done above) */
1450     x264_cpu_restore( h->param.cpu );
1451
1452     /* update rc */
1453     x264_ratecontrol_end( h, i_frame_size * 8 );
1454
1455     x264_frame_put( h->frames.unused, h->fenc );
1456
1457     TIMER_STOP( i_mtime_encode_frame );
1458
1459     /* ---------------------- Compute/Print statistics --------------------- */
1460     /* Slice stat */
1461     h->stat.i_slice_count[i_slice_type]++;
1462     h->stat.i_slice_size[i_slice_type] += i_frame_size + NALU_OVERHEAD;
1463     h->stat.i_slice_qp[i_slice_type] += i_global_qp;
1464
1465     for( i = 0; i < 19; i++ )
1466     {
1467         h->stat.i_mb_count[h->sh.i_type][i] += h->stat.frame.i_mb_count[i];
1468     }
1469
1470     if( h->param.analyse.b_psnr )
1471     {
1472         int64_t i_sqe_y, i_sqe_u, i_sqe_v;
1473
1474         /* PSNR */
1475         i_sqe_y = x264_sqe( h, 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 );
1476         i_sqe_u = x264_sqe( h, 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);
1477         i_sqe_v = x264_sqe( h, 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);
1478
1479         h->stat.i_sqe_global[i_slice_type] += i_sqe_y + i_sqe_u + i_sqe_v;
1480         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 );
1481         h->stat.f_psnr_mean_y[i_slice_type] += x264_psnr( i_sqe_y, h->param.i_width * h->param.i_height );
1482         h->stat.f_psnr_mean_u[i_slice_type] += x264_psnr( i_sqe_u, h->param.i_width * h->param.i_height / 4 );
1483         h->stat.f_psnr_mean_v[i_slice_type] += x264_psnr( i_sqe_v, h->param.i_width * h->param.i_height / 4 );
1484
1485         snprintf( psz_message, 80, " PSNR Y:%2.2f U:%2.2f V:%2.2f",
1486                   x264_psnr( i_sqe_y, h->param.i_width * h->param.i_height ),
1487                   x264_psnr( i_sqe_u, h->param.i_width * h->param.i_height / 4),
1488                   x264_psnr( i_sqe_v, h->param.i_width * h->param.i_height / 4) );
1489         psz_message[79] = '\0';
1490     }
1491     else
1492     {
1493         psz_message[0] = '\0';
1494     }
1495
1496     x264_log( h, X264_LOG_DEBUG,
1497                   "frame=%4d QP=%i NAL=%d Slice:%c Poc:%-3d I4:%-4d I8:%-4d I16:%-4d P:%-4d SKIP:%-4d size=%d bytes%s\n",
1498               h->i_frame - 1,
1499               i_global_qp,
1500               i_nal_ref_idc,
1501               i_slice_type == SLICE_TYPE_I ? 'I' : (i_slice_type == SLICE_TYPE_P ? 'P' : 'B' ),
1502               frame_psnr->i_poc,
1503               h->stat.frame.i_mb_count[I_4x4],
1504               h->stat.frame.i_mb_count[I_8x8],
1505               h->stat.frame.i_mb_count[I_16x16],
1506               h->stat.frame.i_mb_count_p,
1507               h->stat.frame.i_mb_count_skip,
1508               i_frame_size,
1509               psz_message );
1510
1511
1512 #ifdef DEBUG_MB_TYPE
1513 {
1514     static const char mb_chars[] = { 'i', 'i', 'I', 'C', 'P', '8', 'S',
1515         'D', '<', 'X', 'B', 'X', '>', 'B', 'B', 'B', 'B', '8', 'S' };
1516     int mb_xy;
1517     for( mb_xy = 0; mb_xy < h->sps->i_mb_width * h->sps->i_mb_height; mb_xy++ )
1518     {
1519         if( h->mb.type[mb_xy] < 19 && h->mb.type[mb_xy] >= 0 )
1520             fprintf( stderr, "%c ", mb_chars[ h->mb.type[mb_xy] ] );
1521         else
1522             fprintf( stderr, "? " );
1523
1524         if( (mb_xy+1) % h->sps->i_mb_width == 0 )
1525             fprintf( stderr, "\n" );
1526     }
1527 }
1528 #endif
1529
1530 #ifdef DEBUG_DUMP_FRAME
1531     /* Dump reconstructed frame */
1532     x264_frame_dump( h, frame_psnr, "fdec.yuv" );
1533 #endif
1534 #if 0
1535     if( h->i_ref0 > 0 )
1536     {
1537         x264_frame_dump( h, h->fref0[0], "ref0.yuv" );
1538     }
1539     if( h->i_ref1 > 0 )
1540     {
1541         x264_frame_dump( h, h->fref1[0], "ref1.yuv" );
1542     }
1543 #endif
1544     return 0;
1545 }
1546
1547 /****************************************************************************
1548  * x264_encoder_close:
1549  ****************************************************************************/
1550 void    x264_encoder_close  ( x264_t *h )
1551 {
1552 #ifdef DEBUG_BENCHMARK
1553     int64_t i_mtime_total = i_mtime_analyse + i_mtime_encode + i_mtime_write + i_mtime_filter + 1;
1554 #endif
1555     int64_t i_yuv_size = 3 * h->param.i_width * h->param.i_height / 2;
1556     int i;
1557
1558 #ifdef DEBUG_BENCHMARK
1559     x264_log( h, X264_LOG_INFO,
1560               "analyse=%d(%lldms) encode=%d(%lldms) write=%d(%lldms) filter=%d(%lldms)\n",
1561               (int)(100*i_mtime_analyse/i_mtime_total), i_mtime_analyse/1000,
1562               (int)(100*i_mtime_encode/i_mtime_total), i_mtime_encode/1000,
1563               (int)(100*i_mtime_write/i_mtime_total), i_mtime_write/1000,
1564               (int)(100*i_mtime_filter/i_mtime_total), i_mtime_filter/1000 );
1565 #endif
1566
1567     /* Slices used and PSNR */
1568     for( i=0; i<5; i++ )
1569     {
1570         static const int slice_order[] = { SLICE_TYPE_I, SLICE_TYPE_SI, SLICE_TYPE_P, SLICE_TYPE_SP, SLICE_TYPE_B };
1571         static const char *slice_name[] = { "P", "B", "I", "SP", "SI" };
1572         int i_slice = slice_order[i];
1573
1574         if( h->stat.i_slice_count[i_slice] > 0 )
1575         {
1576             const int i_count = h->stat.i_slice_count[i_slice];
1577             if( h->param.analyse.b_psnr )
1578             {
1579                 x264_log( h, X264_LOG_INFO,
1580                           "slice %s:%-4d Avg QP:%5.2f Avg size:%6.0f PSNR Mean Y:%5.2f U:%5.2f V:%5.2f Avg:%5.2f Global:%5.2f\n",
1581                           slice_name[i_slice],
1582                           i_count,
1583                           (double)h->stat.i_slice_qp[i_slice] / i_count,
1584                           (double)h->stat.i_slice_size[i_slice] / i_count,
1585                           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,
1586                           h->stat.f_psnr_average[i_slice] / i_count,
1587                           x264_psnr( h->stat.i_sqe_global[i_slice], i_count * i_yuv_size ) );
1588             }
1589             else
1590             {
1591                 x264_log( h, X264_LOG_INFO,
1592                           "slice %s:%-4d Avg QP:%5.2f Avg size:%6.0f\n",
1593                           slice_name[i_slice],
1594                           i_count,
1595                           (double)h->stat.i_slice_qp[i_slice] / i_count,
1596                           (double)h->stat.i_slice_size[i_slice] / i_count );
1597             }
1598         }
1599     }
1600
1601     /* MB types used */
1602     if( h->stat.i_slice_count[SLICE_TYPE_I] > 0 )
1603     {
1604         const int64_t *i_mb_count = h->stat.i_mb_count[SLICE_TYPE_I];
1605         const double i_count = h->stat.i_slice_count[SLICE_TYPE_I] * h->mb.i_mb_count / 100.0;
1606         x264_log( h, X264_LOG_INFO,
1607                   "slice I   Avg I4x4:%.1f%%  I8x8:%.1f%%  I16x16:%.1f%%\n",
1608                   i_mb_count[I_4x4]  / i_count,
1609                   i_mb_count[I_8x8]  / i_count,
1610                   i_mb_count[I_16x16]/ i_count );
1611     }
1612     if( h->stat.i_slice_count[SLICE_TYPE_P] > 0 )
1613     {
1614         const int64_t *i_mb_count = h->stat.i_mb_count[SLICE_TYPE_P];
1615         const double i_count = h->stat.i_slice_count[SLICE_TYPE_P] * h->mb.i_mb_count / 100.0;
1616         x264_log( h, X264_LOG_INFO,
1617                   "slice P   Avg I4x4:%.1f%%  I8x8:%.1f%%  I16x16:%.1f%%  P:%.1f%%  P8x8:%.1f%%  PSKIP:%.1f%%\n",
1618                   i_mb_count[I_4x4]  / i_count,
1619                   i_mb_count[I_8x8]  / i_count,
1620                   i_mb_count[I_16x16]/ i_count,
1621                   i_mb_count[P_L0]   / i_count,
1622                   i_mb_count[P_8x8]  / i_count,
1623                   i_mb_count[P_SKIP] / i_count );
1624     }
1625     if( h->stat.i_slice_count[SLICE_TYPE_B] > 0 )
1626     {
1627         const int64_t *i_mb_count = h->stat.i_mb_count[SLICE_TYPE_B];
1628         const double i_count = h->stat.i_slice_count[SLICE_TYPE_B] * h->mb.i_mb_count / 100.0;
1629         x264_log( h, X264_LOG_INFO,
1630                   "slice B   Avg I4x4:%.1f%%  I8x8:%.1f%%  I16x16:%.1f%%  P:%.1f%%  B:%.1f%%  B8x8:%.1f%%  DIRECT:%.1f%%  BSKIP:%.1f%%\n",
1631                   i_mb_count[I_4x4]    / i_count,
1632                   i_mb_count[I_8x8]    / i_count,
1633                   i_mb_count[I_16x16]  / i_count,
1634                   (i_mb_count[B_L0_L0] + i_mb_count[B_L1_L1] + i_mb_count[B_L1_L0] + i_mb_count[B_L0_L1]) / i_count,
1635                   (i_mb_count[B_BI_BI] + i_mb_count[B_L0_BI] + i_mb_count[B_L1_BI] + i_mb_count[B_BI_L0] + i_mb_count[B_BI_L1]) / i_count,
1636                   i_mb_count[B_8x8]    / i_count,
1637                   i_mb_count[B_DIRECT] / i_count,
1638                   i_mb_count[B_SKIP]   / i_count );
1639     }
1640
1641     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 )
1642     {
1643         const int i_count = h->stat.i_slice_count[SLICE_TYPE_I] +
1644                             h->stat.i_slice_count[SLICE_TYPE_P] +
1645                             h->stat.i_slice_count[SLICE_TYPE_B];
1646         float fps = (float) h->param.i_fps_num / h->param.i_fps_den;
1647
1648         if( h->param.analyse.b_psnr )
1649             x264_log( h, X264_LOG_INFO,
1650                       "PSNR Mean Y:%5.2f U:%5.2f V:%5.2f Avg:%5.2f Global:%5.2f kb/s:%.1f\n",
1651                       (h->stat.f_psnr_mean_y[SLICE_TYPE_I] + h->stat.f_psnr_mean_y[SLICE_TYPE_P] + h->stat.f_psnr_mean_y[SLICE_TYPE_B]) / i_count,
1652                       (h->stat.f_psnr_mean_u[SLICE_TYPE_I] + h->stat.f_psnr_mean_u[SLICE_TYPE_P] + h->stat.f_psnr_mean_u[SLICE_TYPE_B]) / i_count,
1653                       (h->stat.f_psnr_mean_v[SLICE_TYPE_I] + h->stat.f_psnr_mean_v[SLICE_TYPE_P] + h->stat.f_psnr_mean_v[SLICE_TYPE_B]) / i_count,
1654
1655                       (h->stat.f_psnr_average[SLICE_TYPE_I] + h->stat.f_psnr_average[SLICE_TYPE_P] + h->stat.f_psnr_average[SLICE_TYPE_B]) / i_count,
1656
1657                       x264_psnr( h->stat.i_sqe_global[SLICE_TYPE_I] + h->stat.i_sqe_global[SLICE_TYPE_P]+ h->stat.i_sqe_global[SLICE_TYPE_B],
1658                                  i_count * i_yuv_size ),
1659                       fps * 8*(h->stat.i_slice_size[SLICE_TYPE_I]+h->stat.i_slice_size[SLICE_TYPE_P]+h->stat.i_slice_size[SLICE_TYPE_B]) / i_count / 1000 );
1660         else
1661             x264_log( h, X264_LOG_INFO,
1662                       "kb/s:%.1f\n",
1663                       fps * 8*(h->stat.i_slice_size[SLICE_TYPE_I]+h->stat.i_slice_size[SLICE_TYPE_P]+h->stat.i_slice_size[SLICE_TYPE_B]) / i_count / 1000 );
1664     }
1665
1666     /* frames */
1667     for( i = 0; i < X264_BFRAME_MAX + 3; i++ )
1668     {
1669         if( h->frames.current[i] ) x264_frame_delete( h->frames.current[i] );
1670         if( h->frames.next[i] )    x264_frame_delete( h->frames.next[i] );
1671         if( h->frames.unused[i] )  x264_frame_delete( h->frames.unused[i] );
1672     }
1673     /* ref frames */
1674     for( i = 0; i < h->frames.i_max_dpb; i++ )
1675     {
1676         x264_frame_delete( h->frames.reference[i] );
1677     }
1678
1679     /* rc */
1680     x264_ratecontrol_delete( h );
1681
1682     /* param */
1683     if( h->param.rc.psz_stat_out )
1684         free( h->param.rc.psz_stat_out );
1685     if( h->param.rc.psz_stat_in )
1686         free( h->param.rc.psz_stat_in );
1687     if( h->param.rc.psz_rc_eq )
1688         free( h->param.rc.psz_rc_eq );
1689
1690     x264_macroblock_cache_end( h );
1691     x264_free( h->out.p_bitstream );
1692     for( i = 1; i < h->param.i_threads; i++ )
1693         x264_free( h->thread[i] );
1694     x264_free( h );
1695 }
1696