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encoder.c
资源名称：chapter15.rar　[点击查看]
上传用户：hjq518
上传日期：2021-12-09
资源大小：5084k
文件大小：73k
源码类别：

Audio

开发平台：

Visual C++

encoder.c：源码内容
  1. /*****************************************************************************
  2.  * x264: h264 encoder
  3.  *****************************************************************************
  4.  * Copyright (C) 2003-2008 x264 project
  5.  *
  6.  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
  7.  *          Loren Merritt <lorenm@u.washington.edu>
  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., 51 Franklin Street, Fifth Floor, Boston, MA  02111, USA.
  22.  *****************************************************************************/
  24. #include <math.h>
  26. #include "common/common.h"
  27. #include "common/cpu.h"
  29. #include "set.h"
  30. #include "analyse.h"
  31. #include "ratecontrol.h"
  32. #include "macroblock.h"
  34. #if VISUALIZE
  35. #include "common/visualize.h"
  36. #endif
  38. //#define DEBUG_MB_TYPE
  40. #define NALU_OVERHEAD 5 // startcode + NAL type costs 5 bytes per frame
  42. #define bs_write_ue bs_write_ue_big
  44. static void x264_encoder_frame_end( x264_t *h, x264_t *thread_current,
  45.                                     x264_nal_t **pp_nal, int *pi_nal,
  46.                                     x264_picture_t *pic_out );
  48. /****************************************************************************
  49.  *
  50.  ******************************* x264 libs **********************************
  51.  *
  52.  ****************************************************************************/
  53. static float x264_psnr( int64_t i_sqe, int64_t i_size )
  54. {
  55.     double f_mse = (double)i_sqe / ((double)65025.0 * (double)i_size);
  56.     if( f_mse <= 0.0000000001 ) /* Max 100dB */
  57.         return 100;
  59.     return (float)(-10.0 * log( f_mse ) / log( 10.0 ));
  60. }
  62. static void x264_frame_dump( x264_t *h )
  63. {
  64.     FILE *f = fopen( h->param.psz_dump_yuv, "r+b" );
  65.     int i, y;
  66.     if( !f )
  67.         return;
  68.     /* Write the frame in display order */
  69.     fseek( f, h->fdec->i_frame * h->param.i_height * h->param.i_width * 3/2, SEEK_SET );
  70.     for( i = 0; i < h->fdec->i_plane; i++ )
  71.         for( y = 0; y < h->param.i_height >> !!i; y++ )
  72.             fwrite( &h->fdec->plane[i][y*h->fdec->i_stride[i]], 1, h->param.i_width >> !!i, f );
  73.     fclose( f );
  74. }
  77. /* Fill "default" values */
  78. static void x264_slice_header_init( x264_t *h, x264_slice_header_t *sh,
  79.                                     x264_sps_t *sps, x264_pps_t *pps,
  80.                                     int i_idr_pic_id, int i_frame, int i_qp )
  81. {
  82.     x264_param_t *param = &h->param;
  83.     int i;
  85.     /* First we fill all field */
  86.     sh->sps = sps;
  87.     sh->pps = pps;
  89.     sh->i_first_mb  = 0;
  90.     sh->i_last_mb   = h->sps->i_mb_width * h->sps->i_mb_height;
  91.     sh->i_pps_id    = pps->i_id;
  93.     sh->i_frame_num = i_frame;
  95.     sh->b_mbaff = h->param.b_interlaced;
  96.     sh->b_field_pic = 0;    /* no field support for now */
  97.     sh->b_bottom_field = 0; /* not yet used */
  99.     sh->i_idr_pic_id = i_idr_pic_id;
  101.     /* poc stuff, fixed later */
  102.     sh->i_poc_lsb = 0;
  103.     sh->i_delta_poc_bottom = 0;
  104.     sh->i_delta_poc[0] = 0;
  105.     sh->i_delta_poc[1] = 0;
  107.     sh->i_redundant_pic_cnt = 0;
  109.     if( !h->mb.b_direct_auto_read )
  110.     {
  111.         if( h->mb.b_direct_auto_write )
  112.             sh->b_direct_spatial_mv_pred = ( h->stat.i_direct_score[1] > h->stat.i_direct_score[0] );
  113.         else
  114.             sh->b_direct_spatial_mv_pred = ( param->analyse.i_direct_mv_pred == X264_DIRECT_PRED_SPATIAL );
  115.     }
  116.     /* else b_direct_spatial_mv_pred was read from the 2pass statsfile */
  118.     sh->b_num_ref_idx_override = 0;
  119.     sh->i_num_ref_idx_l0_active = 1;
  120.     sh->i_num_ref_idx_l1_active = 1;
  122.     sh->b_ref_pic_list_reordering_l0 = h->b_ref_reorder[0];
  123.     sh->b_ref_pic_list_reordering_l1 = h->b_ref_reorder[1];
  125.     /* If the ref list isn't in the default order, construct reordering header */
  126.     /* List1 reordering isn't needed yet */
  127.     if( sh->b_ref_pic_list_reordering_l0 )
  128.     {
  129.         int pred_frame_num = i_frame;
  130.         for( i = 0; i < h->i_ref0; i++ )
  131.         {
  132.             int diff = h->fref0[i]->i_frame_num - pred_frame_num;
  133.             if( diff == 0 )
  134.                 x264_log( h, X264_LOG_ERROR, "diff frame num == 0n" );
  135.             sh->ref_pic_list_order[0][i].idc = ( diff > 0 );
  136.             sh->ref_pic_list_order[0][i].arg = abs( diff ) - 1;
  137.             pred_frame_num = h->fref0[i]->i_frame_num;
  138.         }
  139.     }
  141.     sh->i_cabac_init_idc = param->i_cabac_init_idc;
  143.     sh->i_qp = i_qp;
  144.     sh->i_qp_delta = i_qp - pps->i_pic_init_qp;
  145.     sh->b_sp_for_swidth = 0;
  146.     sh->i_qs_delta = 0;
  148.     /* If effective qp <= 15, deblocking would have no effect anyway */
  149.     if( param->b_deblocking_filter
  150.         && ( h->mb.b_variable_qp
  151.         || 15 < i_qp + 2 * X264_MIN(param->i_deblocking_filter_alphac0, param->i_deblocking_filter_beta) ) )
  152.     {
  153.         sh->i_disable_deblocking_filter_idc = 0;
  154.     }
  155.     else
  156.     {
  157.         sh->i_disable_deblocking_filter_idc = 1;
  158.     }
  159.     sh->i_alpha_c0_offset = param->i_deblocking_filter_alphac0 << 1;
  160.     sh->i_beta_offset = param->i_deblocking_filter_beta << 1;
  161. }
  163. static void x264_slice_header_write( bs_t *s, x264_slice_header_t *sh, int i_nal_ref_idc )
  164. {
  165.     int i;
  167.     if( sh->b_mbaff )
  168.     {
  169.         assert( sh->i_first_mb % (2*sh->sps->i_mb_width) == 0 );
  170.         bs_write_ue( s, sh->i_first_mb >> 1 );
  171.     }
  172.     else
  173.         bs_write_ue( s, sh->i_first_mb );
  175.     bs_write_ue( s, sh->i_type + 5 );   /* same type things */
  176.     bs_write_ue( s, sh->i_pps_id );
  177.     bs_write( s, sh->sps->i_log2_max_frame_num, sh->i_frame_num );
  179.     if( !sh->sps->b_frame_mbs_only )
  180.     {
  181.         bs_write1( s, sh->b_field_pic );
  182.         if ( sh->b_field_pic )
  183.             bs_write1( s, sh->b_bottom_field );
  184.     }
  186.     if( sh->i_idr_pic_id >= 0 ) /* NAL IDR */
  187.     {
  188.         bs_write_ue( s, sh->i_idr_pic_id );
  189.     }
  191.     if( sh->sps->i_poc_type == 0 )
  192.     {
  193.         bs_write( s, sh->sps->i_log2_max_poc_lsb, sh->i_poc_lsb );
  194.         if( sh->pps->b_pic_order && !sh->b_field_pic )
  195.         {
  196.             bs_write_se( s, sh->i_delta_poc_bottom );
  197.         }
  198.     }
  199.     else if( sh->sps->i_poc_type == 1 && !sh->sps->b_delta_pic_order_always_zero )
  200.     {
  201.         bs_write_se( s, sh->i_delta_poc[0] );
  202.         if( sh->pps->b_pic_order && !sh->b_field_pic )
  203.         {
  204.             bs_write_se( s, sh->i_delta_poc[1] );
  205.         }
  206.     }
  208.     if( sh->pps->b_redundant_pic_cnt )
  209.     {
  210.         bs_write_ue( s, sh->i_redundant_pic_cnt );
  211.     }
  213.     if( sh->i_type == SLICE_TYPE_B )
  214.     {
  215.         bs_write1( s, sh->b_direct_spatial_mv_pred );
  216.     }
  217.     if( sh->i_type == SLICE_TYPE_P || sh->i_type == SLICE_TYPE_SP || sh->i_type == SLICE_TYPE_B )
  218.     {
  219.         bs_write1( s, sh->b_num_ref_idx_override );
  220.         if( sh->b_num_ref_idx_override )
  221.         {
  222.             bs_write_ue( s, sh->i_num_ref_idx_l0_active - 1 );
  223.             if( sh->i_type == SLICE_TYPE_B )
  224.             {
  225.                 bs_write_ue( s, sh->i_num_ref_idx_l1_active - 1 );
  226.             }
  227.         }
  228.     }
  230.     /* ref pic list reordering */
  231.     if( sh->i_type != SLICE_TYPE_I )
  232.     {
  233.         bs_write1( s, sh->b_ref_pic_list_reordering_l0 );
  234.         if( sh->b_ref_pic_list_reordering_l0 )
  235.         {
  236.             for( i = 0; i < sh->i_num_ref_idx_l0_active; i++ )
  237.             {
  238.                 bs_write_ue( s, sh->ref_pic_list_order[0][i].idc );
  239.                 bs_write_ue( s, sh->ref_pic_list_order[0][i].arg );
  241.             }
  242.             bs_write_ue( s, 3 );
  243.         }
  244.     }
  245.     if( sh->i_type == SLICE_TYPE_B )
  246.     {
  247.         bs_write1( s, sh->b_ref_pic_list_reordering_l1 );
  248.         if( sh->b_ref_pic_list_reordering_l1 )
  249.         {
  250.             for( i = 0; i < sh->i_num_ref_idx_l1_active; i++ )
  251.             {
  252.                 bs_write_ue( s, sh->ref_pic_list_order[1][i].idc );
  253.                 bs_write_ue( s, sh->ref_pic_list_order[1][i].arg );
  254.             }
  255.             bs_write_ue( s, 3 );
  256.         }
  257.     }
  259.     if( ( sh->pps->b_weighted_pred && ( sh->i_type == SLICE_TYPE_P || sh->i_type == SLICE_TYPE_SP ) ) ||
  260.         ( sh->pps->b_weighted_bipred == 1 && sh->i_type == SLICE_TYPE_B ) )
  261.     {
  262.         /* FIXME */
  263.     }
  265.     if( i_nal_ref_idc != 0 )
  266.     {
  267.         if( sh->i_idr_pic_id >= 0 )
  268.         {
  269.             bs_write1( s, 0 );  /* no output of prior pics flag */
  270.             bs_write1( s, 0 );  /* long term reference flag */
  271.         }
  272.         else
  273.         {
  274.             bs_write1( s, 0 );  /* adaptive_ref_pic_marking_mode_flag */
  275.         }
  276.     }
  278.     if( sh->pps->b_cabac && sh->i_type != SLICE_TYPE_I )
  279.     {
  280.         bs_write_ue( s, sh->i_cabac_init_idc );
  281.     }
  282.     bs_write_se( s, sh->i_qp_delta );      /* slice qp delta */
  284.     if( sh->pps->b_deblocking_filter_control )
  285.     {
  286.         bs_write_ue( s, sh->i_disable_deblocking_filter_idc );
  287.         if( sh->i_disable_deblocking_filter_idc != 1 )
  288.         {
  289.             bs_write_se( s, sh->i_alpha_c0_offset >> 1 );
  290.             bs_write_se( s, sh->i_beta_offset >> 1 );
  291.         }
  292.     }
  293. }
  295. /* If we are within a reasonable distance of the end of the memory allocated for the bitstream, */
  296. /* reallocate, adding an arbitrary amount of space (100 kilobytes). */
  297. static void x264_bitstream_check_buffer( x264_t *h )
  298. {
  299.     if( ( h->param.b_cabac && (h->cabac.p_end - h->cabac.p < 2500) )
  300.      || ( h->out.bs.p_end - h->out.bs.p < 2500 ) )
  301.     {
  302.         uint8_t *bs_bak = h->out.p_bitstream;
  303.         intptr_t delta;
  304.         int i;
  306.         h->out.i_bitstream += 100000;
  307.         h->out.p_bitstream = x264_realloc( h->out.p_bitstream, h->out.i_bitstream );
  308.         delta = h->out.p_bitstream - bs_bak;
  310.         h->out.bs.p_start += delta;
  311.         h->out.bs.p += delta;
  312.         h->out.bs.p_end = h->out.p_bitstream + h->out.i_bitstream;
  314.         h->cabac.p_start += delta;
  315.         h->cabac.p += delta;
  316.         h->cabac.p_end = h->out.p_bitstream + h->out.i_bitstream;
  318.         for( i = 0; i <= h->out.i_nal; i++ )
  319.             h->out.nal[i].p_payload += delta;
  320.     }
  321. }
  323. /****************************************************************************
  324.  *
  325.  ****************************************************************************
  326.  ****************************** External API*********************************
  327.  ****************************************************************************
  328.  *
  329.  ****************************************************************************/
  331. static int x264_validate_parameters( x264_t *h )
  332. {
  333. #ifdef HAVE_MMX
  334.     if( !(x264_cpu_detect() & X264_CPU_MMXEXT) )
  335.     {
  336.         x264_log( h, X264_LOG_ERROR, "your cpu does not support MMXEXT, but x264 was compiled with asm supportn");
  337.         x264_log( h, X264_LOG_ERROR, "to run x264, recompile without asm support (configure --disable-asm)n");
  338.         return -1;
  339.     }
  340. #endif
  341.     if( h->param.i_width <= 0 || h->param.i_height <= 0 )
  342.     {
  343.         x264_log( h, X264_LOG_ERROR, "invalid width x height (%dx%d)n",
  344.                   h->param.i_width, h->param.i_height );
  345.         return -1;
  346.     }
  348.     if( h->param.i_width % 2 || h->param.i_height % 2 )
  349.     {
  350.         x264_log( h, X264_LOG_ERROR, "width or height not divisible by 2 (%dx%d)n",
  351.                   h->param.i_width, h->param.i_height );
  352.         return -1;
  353.     }
  354.     if( h->param.i_csp != X264_CSP_I420 )
  355.     {
  356.         x264_log( h, X264_LOG_ERROR, "invalid CSP (only I420 supported)n" );
  357.         return -1;
  358.     }
  360.     if( h->param.i_threads == 0 )
  361.         h->param.i_threads = x264_cpu_num_processors() * 3/2;
  362.     h->param.i_threads = x264_clip3( h->param.i_threads, 1, X264_THREAD_MAX );
  363.     if( h->param.i_threads > 1 )
  364.     {
  365. #ifndef HAVE_PTHREAD
  366.         x264_log( h, X264_LOG_WARNING, "not compiled with pthread support!n");
  367.         h->param.i_threads = 1;
  368. #else
  369.         if( h->param.i_scenecut_threshold >= 0 )
  370.             h->param.b_pre_scenecut = 1;
  371. #endif
  372.     }
  374.     if( h->param.b_interlaced )
  375.     {
  376.         if( h->param.analyse.i_me_method >= X264_ME_ESA )
  377.         {
  378.             x264_log( h, X264_LOG_WARNING, "interlace + me=esa is not implementedn" );
  379.             h->param.analyse.i_me_method = X264_ME_UMH;
  380.         }
  381.         if( h->param.analyse.i_direct_mv_pred > X264_DIRECT_PRED_SPATIAL )
  382.         {
  383.             x264_log( h, X264_LOG_WARNING, "interlace + direct=temporal is not implementedn" );
  384.             h->param.analyse.i_direct_mv_pred = X264_DIRECT_PRED_SPATIAL;
  385.         }
  386.     }
  388.     if( h->param.rc.i_rc_method < 0 || h->param.rc.i_rc_method > 2 )
  389.     {
  390.         x264_log( h, X264_LOG_ERROR, "no ratecontrol method specifiedn" );
  391.         return -1;
  392.     }
  393.     h->param.rc.f_rf_constant = x264_clip3f( h->param.rc.f_rf_constant, 0, 51 );
  394.     h->param.rc.i_qp_constant = x264_clip3( h->param.rc.i_qp_constant, 0, 51 );
  395.     if( h->param.rc.i_rc_method == X264_RC_CRF )
  396.         h->param.rc.i_qp_constant = h->param.rc.f_rf_constant;
  397.     if( (h->param.rc.i_rc_method == X264_RC_CQP || h->param.rc.i_rc_method == X264_RC_CRF)
  398.         && h->param.rc.i_qp_constant == 0 )
  399.     {
  400.         h->mb.b_lossless = 1;
  401.         h->param.i_cqm_preset = X264_CQM_FLAT;
  402.         h->param.psz_cqm_file = NULL;
  403.         h->param.rc.i_rc_method = X264_RC_CQP;
  404.         h->param.rc.f_ip_factor = 1;
  405.         h->param.rc.f_pb_factor = 1;
  406.         h->param.analyse.b_transform_8x8 = 0;
  407.         h->param.analyse.b_psnr = 0;
  408.         h->param.analyse.b_ssim = 0;
  409.         h->param.analyse.i_chroma_qp_offset = 0;
  410.         h->param.analyse.i_trellis = 0;
  411.         h->param.analyse.b_fast_pskip = 0;
  412.         h->param.analyse.i_noise_reduction = 0;
  413.     }
  414.     if( h->param.rc.i_rc_method == X264_RC_CQP )
  415.     {
  416.         float qp_p = h->param.rc.i_qp_constant;
  417.         float qp_i = qp_p - 6*log(h->param.rc.f_ip_factor)/log(2);
  418.         float qp_b = qp_p + 6*log(h->param.rc.f_pb_factor)/log(2);
  419.         h->param.rc.i_qp_min = x264_clip3( (int)(X264_MIN3( qp_p, qp_i, qp_b )), 0, 51 );
  420.         h->param.rc.i_qp_max = x264_clip3( (int)(X264_MAX3( qp_p, qp_i, qp_b ) + .999), 0, 51 );
  421.         h->param.rc.i_aq_mode = 0;
  422.     }
  423.     h->param.rc.i_qp_max = x264_clip3( h->param.rc.i_qp_max, 0, 51 );
  424.     h->param.rc.i_qp_min = x264_clip3( h->param.rc.i_qp_min, 0, h->param.rc.i_qp_max );
  426.     if( ( h->param.i_width % 16 || h->param.i_height % 16 )
  427.         && h->param.i_height != 1080 && !h->mb.b_lossless )
  428.     {
  429.         // There's nothing special about 1080 in that the warning still applies to it,
  430.         // but chances are the user can't help it if his content is already 1080p,
  431.         // so there's no point in warning in that case.
  432.         x264_log( h, X264_LOG_WARNING,
  433.                   "width or height not divisible by 16 (%dx%d), compression will suffer.n",
  434.                   h->param.i_width, h->param.i_height );
  435.     }
  437.     h->param.i_frame_reference = x264_clip3( h->param.i_frame_reference, 1, 16 );
  438.     if( h->param.i_keyint_max <= 0 )
  439.         h->param.i_keyint_max = 1;
  440.     h->param.i_keyint_min = x264_clip3( h->param.i_keyint_min, 1, h->param.i_keyint_max/2+1 );
  442.     h->param.i_bframe = x264_clip3( h->param.i_bframe, 0, X264_BFRAME_MAX );
  443.     h->param.i_bframe_bias = x264_clip3( h->param.i_bframe_bias, -90, 100 );
  444.     h->param.b_bframe_pyramid = h->param.b_bframe_pyramid && h->param.i_bframe > 1;
  445.     h->param.b_bframe_adaptive = h->param.b_bframe_adaptive && h->param.i_bframe > 0;
  446.     h->param.analyse.b_weighted_bipred = h->param.analyse.b_weighted_bipred && h->param.i_bframe > 0;
  447.     h->mb.b_direct_auto_write = h->param.analyse.i_direct_mv_pred == X264_DIRECT_PRED_AUTO
  448.                                 && h->param.i_bframe
  449.                                 && ( h->param.rc.b_stat_write || !h->param.rc.b_stat_read );
  450.     if( h->param.i_scenecut_threshold < 0 )
  451.         h->param.b_pre_scenecut = 0;
  453.     h->param.i_deblocking_filter_alphac0 = x264_clip3( h->param.i_deblocking_filter_alphac0, -6, 6 );
  454.     h->param.i_deblocking_filter_beta    = x264_clip3( h->param.i_deblocking_filter_beta, -6, 6 );
  455.     h->param.analyse.i_luma_deadzone[0] = x264_clip3( h->param.analyse.i_luma_deadzone[0], 0, 32 );
  456.     h->param.analyse.i_luma_deadzone[1] = x264_clip3( h->param.analyse.i_luma_deadzone[1], 0, 32 );
  458.     h->param.i_cabac_init_idc = x264_clip3( h->param.i_cabac_init_idc, 0, 2 );
  460.     if( h->param.i_cqm_preset < X264_CQM_FLAT || h->param.i_cqm_preset > X264_CQM_CUSTOM )
  461.         h->param.i_cqm_preset = X264_CQM_FLAT;
  463.     if( h->param.analyse.i_me_method < X264_ME_DIA ||
  464.         h->param.analyse.i_me_method > X264_ME_TESA )
  465.         h->param.analyse.i_me_method = X264_ME_HEX;
  466.     if( h->param.analyse.i_me_range < 4 )
  467.         h->param.analyse.i_me_range = 4;
  468.     if( h->param.analyse.i_me_range > 16 && h->param.analyse.i_me_method <= X264_ME_HEX )
  469.         h->param.analyse.i_me_range = 16;
  470.     if( h->param.analyse.i_me_method == X264_ME_TESA &&
  471.         (h->mb.b_lossless || h->param.analyse.i_subpel_refine <= 1) )
  472.         h->param.analyse.i_me_method = X264_ME_ESA;
  473.     h->param.analyse.i_subpel_refine = x264_clip3( h->param.analyse.i_subpel_refine, 1, 7 );
  474.     h->param.analyse.b_bframe_rdo = h->param.analyse.b_bframe_rdo && h->param.analyse.i_subpel_refine >= 6;
  475.     h->param.analyse.b_mixed_references = h->param.analyse.b_mixed_references && h->param.i_frame_reference > 1;
  476.     h->param.analyse.inter &= X264_ANALYSE_PSUB16x16|X264_ANALYSE_PSUB8x8|X264_ANALYSE_BSUB16x16|
  477.                               X264_ANALYSE_I4x4|X264_ANALYSE_I8x8;
  478.     h->param.analyse.intra &= X264_ANALYSE_I4x4|X264_ANALYSE_I8x8;
  479.     if( !(h->param.analyse.inter & X264_ANALYSE_PSUB16x16) )
  480.         h->param.analyse.inter &= ~X264_ANALYSE_PSUB8x8;
  481.     if( !h->param.analyse.b_transform_8x8 )
  482.     {
  483.         h->param.analyse.inter &= ~X264_ANALYSE_I8x8;
  484.         h->param.analyse.intra &= ~X264_ANALYSE_I8x8;
  485.     }
  486.     h->param.analyse.i_chroma_qp_offset = x264_clip3(h->param.analyse.i_chroma_qp_offset, -12, 12);
  487.     if( !h->param.b_cabac )
  488.         h->param.analyse.i_trellis = 0;
  489.     h->param.analyse.i_trellis = x264_clip3( h->param.analyse.i_trellis, 0, 2 );
  490.     h->param.rc.i_aq_mode = x264_clip3( h->param.rc.i_aq_mode, 0, 2 );
  491.     if( h->param.rc.f_aq_strength <= 0 )
  492.         h->param.rc.i_aq_mode = 0;
  493.     /* VAQ effectively replaces qcomp, so qcomp is raised towards 1 to compensate. */
  494.     if( h->param.rc.i_aq_mode == X264_AQ_GLOBAL )
  495.         h->param.rc.f_qcompress = x264_clip3f(h->param.rc.f_qcompress + h->param.rc.f_aq_strength / 0.7, 0, 1);
  496.     h->param.analyse.i_noise_reduction = x264_clip3( h->param.analyse.i_noise_reduction, 0, 1<<16 );
  498.     {
  499.         const x264_level_t *l = x264_levels;
  500.         if( h->param.i_level_idc < 0 )
  501.         {
  502.             if( h->param.rc.i_rc_method == X264_RC_ABR && h->param.rc.i_vbv_buffer_size <= 0 )
  503.                 h->param.rc.i_vbv_max_bitrate = h->param.rc.i_bitrate * 2;
  504.             h->sps = h->sps_array;
  505.             x264_sps_init( h->sps, h->param.i_sps_id, &h->param );
  506.             do h->param.i_level_idc = l->level_idc;
  507.                 while( l[1].level_idc && x264_validate_levels( h, 0 ) && l++ );
  508.             if( h->param.rc.i_vbv_buffer_size <= 0 )
  509.                 h->param.rc.i_vbv_max_bitrate = 0;
  510.             x264_log( h, X264_LOG_DEBUG, "level_idc: %dn", h->param.i_level_idc );
  511.         }
  512.         else
  513.         {
  514.             while( l->level_idc && l->level_idc != h->param.i_level_idc )
  515.                 l++;
  516.             if( l->level_idc == 0 )
  517.             {
  518.                 x264_log( h, X264_LOG_ERROR, "invalid level_idc: %dn", h->param.i_level_idc );
  519.                 return -1;
  520.             }
  521.         }
  522.         if( h->param.analyse.i_mv_range <= 0 )
  523.             h->param.analyse.i_mv_range = l->mv_range >> h->param.b_interlaced;
  524.         else
  525.             h->param.analyse.i_mv_range = x264_clip3(h->param.analyse.i_mv_range, 32, 512 >> h->param.b_interlaced);
  526.         if( h->param.analyse.i_direct_8x8_inference < 0 )
  527.             h->param.analyse.i_direct_8x8_inference = l->direct8x8;
  528.     }
  530.     if( h->param.i_threads > 1 )
  531.     {
  532.         int r = h->param.analyse.i_mv_range_thread;
  533.         int r2;
  534.         if( r <= 0 )
  535.         {
  536.             // half of the available space is reserved and divided evenly among the threads,
  537.             // the rest is allocated to whichever thread is far enough ahead to use it.
  538.             // reserving more space increases quality for some videos, but costs more time
  539.             // in thread synchronization.
  540.             int max_range = (h->param.i_height + X264_THREAD_HEIGHT) / h->param.i_threads - X264_THREAD_HEIGHT;
  541.             r = max_range / 2;
  542.         }
  543.         r = X264_MAX( r, h->param.analyse.i_me_range );
  544.         r = X264_MIN( r, h->param.analyse.i_mv_range );
  545.         // round up to use the whole mb row
  546.         r2 = (r & ~15) + ((-X264_THREAD_HEIGHT) & 15);
  547.         if( r2 < r )
  548.             r2 += 16;
  549.         x264_log( h, X264_LOG_DEBUG, "using mv_range_thread = %dn", r2 );
  550.         h->param.analyse.i_mv_range_thread = r2;
  551.     }
  553.     if( h->param.rc.f_qblur < 0 )
  554.         h->param.rc.f_qblur = 0;
  555.     if( h->param.rc.f_complexity_blur < 0 )
  556.         h->param.rc.f_complexity_blur = 0;
  558.     h->param.i_sps_id &= 31;
  560.     if( h->param.i_log_level < X264_LOG_INFO )
  561.     {
  562.         h->param.analyse.b_psnr = 0;
  563.         h->param.analyse.b_ssim = 0;
  564.     }
  566.     /* ensure the booleans are 0 or 1 so they can be used in math */
  567. #define BOOLIFY(x) h->param.x = !!h->param.x
  568.     BOOLIFY( b_cabac );
  569.     BOOLIFY( b_deblocking_filter );
  570.     BOOLIFY( b_interlaced );
  571.     BOOLIFY( analyse.b_transform_8x8 );
  572.     BOOLIFY( analyse.i_direct_8x8_inference );
  573.     BOOLIFY( analyse.b_bidir_me );
  574.     BOOLIFY( analyse.b_chroma_me );
  575.     BOOLIFY( analyse.b_fast_pskip );
  576.     BOOLIFY( rc.b_stat_write );
  577.     BOOLIFY( rc.b_stat_read );
  578. #undef BOOLIFY
  580.     return 0;
  581. }
  583. static void mbcmp_init( x264_t *h )
  584. {
  585.     int satd = !h->mb.b_lossless && h->param.analyse.i_subpel_refine > 1;
  586.     memcpy( h->pixf.mbcmp, satd ? h->pixf.satd : h->pixf.sad_aligned, sizeof(h->pixf.mbcmp) );
  587.     memcpy( h->pixf.mbcmp_unaligned, satd ? h->pixf.satd : h->pixf.sad, sizeof(h->pixf.mbcmp_unaligned) );
  588.     h->pixf.intra_mbcmp_x3_16x16 = satd ? h->pixf.intra_satd_x3_16x16 : h->pixf.intra_sad_x3_16x16;
  589.     satd &= h->param.analyse.i_me_method == X264_ME_TESA;
  590.     memcpy( h->pixf.fpelcmp, satd ? h->pixf.satd : h->pixf.sad, sizeof(h->pixf.fpelcmp) );
  591.     memcpy( h->pixf.fpelcmp_x3, satd ? h->pixf.satd_x3 : h->pixf.sad_x3, sizeof(h->pixf.fpelcmp_x3) );
  592.     memcpy( h->pixf.fpelcmp_x4, satd ? h->pixf.satd_x4 : h->pixf.sad_x4, sizeof(h->pixf.fpelcmp_x4) );
  593. }
  595. /****************************************************************************
  596.  * x264_encoder_open:
  597.  ****************************************************************************/
  598. x264_t *x264_encoder_open   ( x264_param_t *param )
  599. {
  600.     x264_t *h = x264_malloc( sizeof( x264_t ) );
  601.     char buf[1000], *p;
  602.     int i;
  604.     memset( h, 0, sizeof( x264_t ) );
  606.     /* Create a copy of param */
  607.     memcpy( &h->param, param, sizeof( x264_param_t ) );
  609.     if( x264_validate_parameters( h ) < 0 )
  610.     {
  611.         x264_free( h );
  612.         return NULL;
  613.     }
  615.     if( h->param.psz_cqm_file )
  616.         if( x264_cqm_parse_file( h, h->param.psz_cqm_file ) < 0 )
  617.         {
  618.             x264_free( h );
  619.             return NULL;
  620.         }
  622.     if( h->param.rc.psz_stat_out )
  623.         h->param.rc.psz_stat_out = strdup( h->param.rc.psz_stat_out );
  624.     if( h->param.rc.psz_stat_in )
  625.         h->param.rc.psz_stat_in = strdup( h->param.rc.psz_stat_in );
  627.     /* VUI */
  628.     if( h->param.vui.i_sar_width > 0 && h->param.vui.i_sar_height > 0 )
  629.     {
  630.         int i_w = param->vui.i_sar_width;
  631.         int i_h = param->vui.i_sar_height;
  633.         x264_reduce_fraction( &i_w, &i_h );
  635.         while( i_w > 65535 || i_h > 65535 )
  636.         {
  637.             i_w /= 2;
  638.             i_h /= 2;
  639.         }
  641.         h->param.vui.i_sar_width = 0;
  642.         h->param.vui.i_sar_height = 0;
  643.         if( i_w == 0 || i_h == 0 )
  644.         {
  645.             x264_log( h, X264_LOG_WARNING, "cannot create valid sample aspect ration" );
  646.         }
  647.         else
  648.         {
  649.             x264_log( h, X264_LOG_INFO, "using SAR=%d/%dn", i_w, i_h );
  650.             h->param.vui.i_sar_width = i_w;
  651.             h->param.vui.i_sar_height = i_h;
  652.         }
  653.     }
  655.     x264_reduce_fraction( &h->param.i_fps_num, &h->param.i_fps_den );
  657.     /* Init x264_t */
  658.     h->i_frame = 0;
  659.     h->i_frame_num = 0;
  660.     h->i_idr_pic_id = 0;
  662.     h->sps = &h->sps_array[0];
  663.     x264_sps_init( h->sps, h->param.i_sps_id, &h->param );
  665.     h->pps = &h->pps_array[0];
  666.     x264_pps_init( h->pps, h->param.i_sps_id, &h->param, h->sps);
  668.     x264_validate_levels( h, 1 );
  670.     if( x264_cqm_init( h ) < 0 )
  671.     {
  672.         x264_free( h );
  673.         return NULL;
  674.     }
  676.     h->mb.i_mb_count = h->sps->i_mb_width * h->sps->i_mb_height;
  678.     /* Init frames. */
  679.     h->frames.i_delay = h->param.i_bframe + h->param.i_threads - 1;
  680.     h->frames.i_max_ref0 = h->param.i_frame_reference;
  681.     h->frames.i_max_ref1 = h->sps->vui.i_num_reorder_frames;
  682.     h->frames.i_max_dpb  = h->sps->vui.i_max_dec_frame_buffering;
  683.     h->frames.b_have_lowres = !h->param.rc.b_stat_read
  684.         && ( h->param.rc.i_rc_method == X264_RC_ABR
  685.           || h->param.rc.i_rc_method == X264_RC_CRF
  686.           || h->param.b_bframe_adaptive
  687.           || h->param.b_pre_scenecut );
  688.     h->frames.b_have_lowres |= (h->param.rc.b_stat_read && h->param.rc.i_vbv_buffer_size > 0);
  690.     h->frames.i_last_idr = - h->param.i_keyint_max;
  691.     h->frames.i_input    = 0;
  692.     h->frames.last_nonb  = NULL;
  694.     h->i_ref0 = 0;
  695.     h->i_ref1 = 0;
  697.     h->chroma_qp_table = i_chroma_qp_table + 12 + h->pps->i_chroma_qp_index_offset;
  699.     x264_rdo_init( );
  701.     /* init CPU functions */
  702.     x264_predict_16x16_init( h->param.cpu, h->predict_16x16 );
  703.     x264_predict_8x8c_init( h->param.cpu, h->predict_8x8c );
  704.     x264_predict_8x8_init( h->param.cpu, h->predict_8x8 );
  705.     x264_predict_4x4_init( h->param.cpu, h->predict_4x4 );
  707.     x264_pixel_init( h->param.cpu, &h->pixf );
  708.     x264_dct_init( h->param.cpu, &h->dctf );
  709.     x264_zigzag_init( h->param.cpu, &h->zigzagf, h->param.b_interlaced );
  710.     x264_mc_init( h->param.cpu, &h->mc );
  711.     x264_quant_init( h, h->param.cpu, &h->quantf );
  712.     x264_deblock_init( h->param.cpu, &h->loopf );
  713.     x264_dct_init_weights();
  715.     mbcmp_init( h );
  717.     p = buf + sprintf( buf, "using cpu capabilities:" );
  718.     for( i=0; x264_cpu_names[i].flags; i++ )
  719.     {
  720.         if( !strcmp(x264_cpu_names[i].name, "SSE2")
  721.             && param->cpu & (X264_CPU_SSE2_IS_FAST|X264_CPU_SSE2_IS_SLOW) )
  722.             continue;
  723.         if( !strcmp(x264_cpu_names[i].name, "SSE3")
  724.             && (param->cpu & X264_CPU_SSSE3 || !(param->cpu & X264_CPU_CACHELINE_64)) )
  725.             continue;
  726.         if( (param->cpu & x264_cpu_names[i].flags) == x264_cpu_names[i].flags
  727.             && (!i || x264_cpu_names[i].flags != x264_cpu_names[i-1].flags) )
  728.             p += sprintf( p, " %s", x264_cpu_names[i].name );
  729.     }
  730.     if( !param->cpu )
  731.         p += sprintf( p, " none!" );
  732.     x264_log( h, X264_LOG_INFO, "%sn", buf );
  734.     h->out.i_nal = 0;
  735.     h->out.i_bitstream = X264_MAX( 1000000, h->param.i_width * h->param.i_height * 4
  736.         * ( h->param.rc.i_rc_method == X264_RC_ABR ? pow( 0.95, h->param.rc.i_qp_min )
  737.           : pow( 0.95, h->param.rc.i_qp_constant ) * X264_MAX( 1, h->param.rc.f_ip_factor )));
  739.     h->thread[0] = h;
  740.     h->i_thread_num = 0;
  741.     for( i = 1; i < h->param.i_threads; i++ )
  742.         h->thread[i] = x264_malloc( sizeof(x264_t) );
  744.     for( i = 0; i < h->param.i_threads; i++ )
  745.     {
  746.         if( i > 0 )
  747.             *h->thread[i] = *h;
  748.         h->thread[i]->fdec = x264_frame_pop_unused( h );
  749.         h->thread[i]->out.p_bitstream = x264_malloc( h->out.i_bitstream );
  750.         if( x264_macroblock_cache_init( h->thread[i] ) < 0 )
  751.             return NULL;
  752.     }
  754.     if( x264_ratecontrol_new( h ) < 0 )
  755.         return NULL;
  757.     if( h->param.psz_dump_yuv )
  758.     {
  759.         /* create or truncate the reconstructed video file */
  760.         FILE *f = fopen( h->param.psz_dump_yuv, "w" );
  761.         if( f )
  762.             fclose( f );
  763.         else
  764.         {
  765.             x264_log( h, X264_LOG_ERROR, "can't write to fdec.yuvn" );
  766.             x264_free( h );
  767.             return NULL;
  768.         }
  769.     }
  771.     return h;
  772. }
  774. /****************************************************************************
  775.  * x264_encoder_reconfig:
  776.  ****************************************************************************/
  777. int x264_encoder_reconfig( x264_t *h, x264_param_t *param )
  778. {
  779. #define COPY(var) h->param.var = param->var
  780.     COPY( i_frame_reference ); // but never uses more refs than initially specified
  781.     COPY( i_bframe_bias );
  782.     if( h->param.i_scenecut_threshold >= 0 && param->i_scenecut_threshold >= 0 )
  783.         COPY( i_scenecut_threshold ); // can't turn it on or off, only vary the threshold
  784.     COPY( b_deblocking_filter );
  785.     COPY( i_deblocking_filter_alphac0 );
  786.     COPY( i_deblocking_filter_beta );
  787.     COPY( analyse.intra );
  788.     COPY( analyse.inter );
  789.     COPY( analyse.i_direct_mv_pred );
  790.     COPY( analyse.i_me_method );
  791.     COPY( analyse.i_me_range );
  792.     COPY( analyse.i_noise_reduction );
  793.     COPY( analyse.i_subpel_refine );
  794.     COPY( analyse.i_trellis );
  795.     COPY( analyse.b_bidir_me );
  796.     COPY( analyse.b_bframe_rdo );
  797.     COPY( analyse.b_chroma_me );
  798.     COPY( analyse.b_dct_decimate );
  799.     COPY( analyse.b_fast_pskip );
  800.     COPY( analyse.b_mixed_references );
  801.     // can only twiddle these if they were enabled to begin with:
  802.     if( h->pps->b_transform_8x8_mode )
  803.         COPY( analyse.b_transform_8x8 );
  804.     if( h->frames.i_max_ref1 > 1 )
  805.         COPY( b_bframe_pyramid );
  806. #undef COPY
  808.     mbcmp_init( h );
  810.     return x264_validate_parameters( h );
  811. }
  813. /* internal usage */
  814. static void x264_nal_start( x264_t *h, int i_type, int i_ref_idc )
  815. {
  816.     x264_nal_t *nal = &h->out.nal[h->out.i_nal];
  818.     nal->i_ref_idc = i_ref_idc;
  819.     nal->i_type    = i_type;
  821.     nal->i_payload= 0;
  822.     nal->p_payload= &h->out.p_bitstream[bs_pos( &h->out.bs ) / 8];
  823. }
  824. static void x264_nal_end( x264_t *h )
  825. {
  826.     x264_nal_t *nal = &h->out.nal[h->out.i_nal];
  827.     nal->i_payload = &h->out.p_bitstream[bs_pos( &h->out.bs ) / 8] - nal->p_payload;
  828.     h->out.i_nal++;
  829. }
  831. /****************************************************************************
  832.  * x264_encoder_headers:
  833.  ****************************************************************************/
  834. int x264_encoder_headers( x264_t *h, x264_nal_t **pp_nal, int *pi_nal )
  835. {
  836.     /* init bitstream context */
  837.     h->out.i_nal = 0;
  838.     bs_init( &h->out.bs, h->out.p_bitstream, h->out.i_bitstream );
  840.     /* Put SPS and PPS */
  841.     if( h->i_frame == 0 )
  842.     {
  843.         /* identify ourself */
  844.         x264_nal_start( h, NAL_SEI, NAL_PRIORITY_DISPOSABLE );
  845.         x264_sei_version_write( h, &h->out.bs );
  846.         x264_nal_end( h );
  848.         /* generate sequence parameters */
  849.         x264_nal_start( h, NAL_SPS, NAL_PRIORITY_HIGHEST );
  850.         x264_sps_write( &h->out.bs, h->sps );
  851.         x264_nal_end( h );
  853.         /* generate picture parameters */
  854.         x264_nal_start( h, NAL_PPS, NAL_PRIORITY_HIGHEST );
  855.         x264_pps_write( &h->out.bs, h->pps );
  856.         x264_nal_end( h );
  857.     }
  858.     /* now set output*/
  859.     *pi_nal = h->out.i_nal;
  860.     *pp_nal = &h->out.nal[0];
  861.     h->out.i_nal = 0;
  863.     return 0;
  864. }
  866. static inline void x264_reference_build_list( x264_t *h, int i_poc )
  867. {
  868.     int i;
  869.     int b_ok;
  871.     /* build ref list 0/1 */
  872.     h->i_ref0 = 0;
  873.     h->i_ref1 = 0;
  874.     for( i = 0; h->frames.reference[i]; i++ )
  875.     {
  876.         if( h->frames.reference[i]->i_poc < i_poc )
  877.         {
  878.             h->fref0[h->i_ref0++] = h->frames.reference[i];
  879.         }
  880.         else if( h->frames.reference[i]->i_poc > i_poc )
  881.         {
  882.             h->fref1[h->i_ref1++] = h->frames.reference[i];
  883.         }
  884.     }
  886.     /* Order ref0 from higher to lower poc */
  887.     do
  888.     {
  889.         b_ok = 1;
  890.         for( i = 0; i < h->i_ref0 - 1; i++ )
  891.         {
  892.             if( h->fref0[i]->i_poc < h->fref0[i+1]->i_poc )
  893.             {
  894.                 XCHG( x264_frame_t*, h->fref0[i], h->fref0[i+1] );
  895.                 b_ok = 0;
  896.                 break;
  897.             }
  898.         }
  899.     } while( !b_ok );
  900.     /* Order ref1 from lower to higher poc (bubble sort) for B-frame */
  901.     do
  902.     {
  903.         b_ok = 1;
  904.         for( i = 0; i < h->i_ref1 - 1; i++ )
  905.         {
  906.             if( h->fref1[i]->i_poc > h->fref1[i+1]->i_poc )
  907.             {
  908.                 XCHG( x264_frame_t*, h->fref1[i], h->fref1[i+1] );
  909.                 b_ok = 0;
  910.                 break;
  911.             }
  912.         }
  913.     } while( !b_ok );
  915.     /* In the standard, a P-frame's ref list is sorted by frame_num.
  916.      * We use POC, but check whether explicit reordering is needed */
  917.     h->b_ref_reorder[0] =
  918.     h->b_ref_reorder[1] = 0;
  919.     if( h->sh.i_type == SLICE_TYPE_P )
  920.     {
  921.         for( i = 0; i < h->i_ref0 - 1; i++ )
  922.             if( h->fref0[i]->i_frame_num < h->fref0[i+1]->i_frame_num )
  923.             {
  924.                 h->b_ref_reorder[0] = 1;
  925.                 break;
  926.             }
  927.     }
  929.     h->i_ref1 = X264_MIN( h->i_ref1, h->frames.i_max_ref1 );
  930.     h->i_ref0 = X264_MIN( h->i_ref0, h->frames.i_max_ref0 );
  931.     h->i_ref0 = X264_MIN( h->i_ref0, h->param.i_frame_reference ); // if reconfig() has lowered the limit
  932.     assert( h->i_ref0 + h->i_ref1 <= 16 );
  933.     h->mb.pic.i_fref[0] = h->i_ref0;
  934.     h->mb.pic.i_fref[1] = h->i_ref1;
  935. }
  937. static void x264_fdec_filter_row( x264_t *h, int mb_y )
  938. {
  939.     /* mb_y is the mb to be encoded next, not the mb to be filtered here */
  940.     int b_hpel = h->fdec->b_kept_as_ref;
  941.     int b_deblock = !h->sh.i_disable_deblocking_filter_idc;
  942.     int b_end = mb_y == h->sps->i_mb_height;
  943.     int min_y = mb_y - (1 << h->sh.b_mbaff);
  944.     int max_y = b_end ? h->sps->i_mb_height : mb_y;
  945.     b_deblock &= b_hpel || h->param.psz_dump_yuv;
  946.     if( mb_y & h->sh.b_mbaff )
  947.         return;
  948.     if( min_y < 0 )
  949.         return;
  951.     if( !b_end )
  952.     {
  953.         int i, j;
  954.         for( j=0; j<=h->sh.b_mbaff; j++ )
  955.             for( i=0; i<3; i++ )
  956.             {
  957.                 memcpy( h->mb.intra_border_backup[j][i],
  958.                         h->fdec->plane[i] + ((mb_y*16 >> !!i) + j - 1 - h->sh.b_mbaff) * h->fdec->i_stride[i],
  959.                         h->sps->i_mb_width*16 >> !!i );
  960.             }
  961.     }
  963.     if( b_deblock )
  964.     {
  965.         int y;
  966.         for( y = min_y; y < max_y; y += (1 << h->sh.b_mbaff) )
  967.             x264_frame_deblock_row( h, y );
  968.     }
  970.     if( b_hpel )
  971.     {
  972.         x264_frame_expand_border( h, h->fdec, min_y, b_end );
  973.         x264_frame_filter( h, h->fdec, min_y, b_end );
  974.         x264_frame_expand_border_filtered( h, h->fdec, min_y, b_end );
  975.     }
  977.     if( h->param.i_threads > 1 && h->fdec->b_kept_as_ref )
  978.     {
  979.         x264_frame_cond_broadcast( h->fdec, mb_y*16 + (b_end ? 10000 : -(X264_THREAD_HEIGHT << h->sh.b_mbaff)) );
  980.     }
  982.     min_y = X264_MAX( min_y*16-8, 0 );
  983.     max_y = b_end ? h->param.i_height : mb_y*16-8;
  985.     if( h->param.analyse.b_psnr )
  986.     {
  987.         int i;
  988.         for( i=0; i<3; i++ )
  989.             h->stat.frame.i_ssd[i] +=
  990.                 x264_pixel_ssd_wxh( &h->pixf,
  991.                     h->fdec->plane[i] + (min_y>>!!i) * h->fdec->i_stride[i], h->fdec->i_stride[i],
  992.                     h->fenc->plane[i] + (min_y>>!!i) * h->fenc->i_stride[i], h->fenc->i_stride[i],
  993.                     h->param.i_width >> !!i, (max_y-min_y) >> !!i );
  994.     }
  996.     if( h->param.analyse.b_ssim )
  997.     {
  998.         x264_emms();
  999.         /* offset by 2 pixels to avoid alignment of ssim blocks with dct blocks,
  1000.          * and overlap by 4 */
  1001.         min_y += min_y == 0 ? 2 : -6;
  1002.         h->stat.frame.f_ssim +=
  1003.             x264_pixel_ssim_wxh( &h->pixf,
  1004.                 h->fdec->plane[0] + 2+min_y*h->fdec->i_stride[0], h->fdec->i_stride[0],
  1005.                 h->fenc->plane[0] + 2+min_y*h->fenc->i_stride[0], h->fenc->i_stride[0],
  1006.                 h->param.i_width-2, max_y-min_y );
  1007.     }
  1008. }
  1010. static inline void x264_reference_update( x264_t *h )
  1011. {
  1012.     int i;
  1014.     if( h->fdec->i_frame >= 0 )
  1015.         h->i_frame++;
  1017.     if( !h->fdec->b_kept_as_ref )
  1018.     {
  1019.         if( h->param.i_threads > 1 )
  1020.         {
  1021.             x264_frame_push_unused( h, h->fdec );
  1022.             h->fdec = x264_frame_pop_unused( h );
  1023.         }
  1024.         return;
  1025.     }
  1027.     /* move lowres copy of the image to the ref frame */
  1028.     for( i = 0; i < 4; i++)
  1029.     {
  1030.         XCHG( uint8_t*, h->fdec->lowres[i], h->fenc->lowres[i] );
  1031.         XCHG( uint8_t*, h->fdec->buffer_lowres[i], h->fenc->buffer_lowres[i] );
  1032.     }
  1034.     /* adaptive B decision needs a pointer, since it can't use the ref lists */
  1035.     if( h->sh.i_type != SLICE_TYPE_B )
  1036.         h->frames.last_nonb = h->fdec;
  1038.     /* move frame in the buffer */
  1039.     x264_frame_push( h->frames.reference, h->fdec );
  1040.     if( h->frames.reference[h->frames.i_max_dpb] )
  1041.         x264_frame_push_unused( h, x264_frame_shift( h->frames.reference ) );
  1042.     h->fdec = x264_frame_pop_unused( h );
  1043. }
  1045. static inline void x264_reference_reset( x264_t *h )
  1046. {
  1047.     while( h->frames.reference[0] )
  1048.         x264_frame_push_unused( h, x264_frame_pop( h->frames.reference ) );
  1049.     h->fdec->i_poc =
  1050.     h->fenc->i_poc = 0;
  1051. }
  1053. static inline void x264_slice_init( x264_t *h, int i_nal_type, int i_global_qp )
  1054. {
  1055.     /* ------------------------ Create slice header  ----------------------- */
  1056.     if( i_nal_type == NAL_SLICE_IDR )
  1057.     {
  1058.         x264_slice_header_init( h, &h->sh, h->sps, h->pps, h->i_idr_pic_id, h->i_frame_num, i_global_qp );
  1060.         /* increment id */
  1061.         h->i_idr_pic_id = ( h->i_idr_pic_id + 1 ) % 65536;
  1062.     }
  1063.     else
  1064.     {
  1065.         x264_slice_header_init( h, &h->sh, h->sps, h->pps, -1, h->i_frame_num, i_global_qp );
  1067.         /* always set the real higher num of ref frame used */
  1068.         h->sh.b_num_ref_idx_override = 1;
  1069.         h->sh.i_num_ref_idx_l0_active = h->i_ref0 <= 0 ? 1 : h->i_ref0;
  1070.         h->sh.i_num_ref_idx_l1_active = h->i_ref1 <= 0 ? 1 : h->i_ref1;
  1071.     }
  1073.     h->fdec->i_frame_num = h->sh.i_frame_num;
  1075.     if( h->sps->i_poc_type == 0 )
  1076.     {
  1077.         h->sh.i_poc_lsb = h->fdec->i_poc & ( (1 << h->sps->i_log2_max_poc_lsb) - 1 );
  1078.         h->sh.i_delta_poc_bottom = 0;   /* XXX won't work for field */
  1079.     }
  1080.     else if( h->sps->i_poc_type == 1 )
  1081.     {
  1082.         /* FIXME TODO FIXME */
  1083.     }
  1084.     else
  1085.     {
  1086.         /* Nothing to do ? */
  1087.     }
  1089.     x264_macroblock_slice_init( h );
  1090. }
  1092. static void x264_slice_write( x264_t *h )
  1093. {
  1094.     int i_skip;
  1095.     int mb_xy, i_mb_x, i_mb_y;
  1096.     int i, i_list, i_ref;
  1098.     /* init stats */
  1099.     memset( &h->stat.frame, 0, sizeof(h->stat.frame) );
  1101.     /* Slice */
  1102.     x264_nal_start( h, h->i_nal_type, h->i_nal_ref_idc );
  1104.     /* Slice header */
  1105.     x264_slice_header_write( &h->out.bs, &h->sh, h->i_nal_ref_idc );
  1106.     if( h->param.b_cabac )
  1107.     {
  1108.         /* alignment needed */
  1109.         bs_align_1( &h->out.bs );
  1111.         /* init cabac */
  1112.         x264_cabac_context_init( &h->cabac, h->sh.i_type, h->sh.i_qp, h->sh.i_cabac_init_idc );
  1113.         x264_cabac_encode_init ( &h->cabac, h->out.bs.p, h->out.bs.p_end );
  1114.     }
  1115.     h->mb.i_last_qp = h->sh.i_qp;
  1116.     h->mb.i_last_dqp = 0;
  1118.     i_mb_y = h->sh.i_first_mb / h->sps->i_mb_width;
  1119.     i_mb_x = h->sh.i_first_mb % h->sps->i_mb_width;
  1120.     i_skip = 0;
  1122.     while( (mb_xy = i_mb_x + i_mb_y * h->sps->i_mb_width) < h->sh.i_last_mb )
  1123.     {
  1124.         int mb_spos = bs_pos(&h->out.bs) + x264_cabac_pos(&h->cabac);
  1126.         if( i_mb_x == 0 )
  1127.             x264_fdec_filter_row( h, i_mb_y );
  1129.         /* load cache */
  1130.         x264_macroblock_cache_load( h, i_mb_x, i_mb_y );
  1132.         /* analyse parameters
  1133.          * Slice I: choose I_4x4 or I_16x16 mode
  1134.          * Slice P: choose between using P mode or intra (4x4 or 16x16)
  1135.          * */
  1136.         x264_macroblock_analyse( h );
  1138.         /* encode this macroblock -> be careful it can change the mb type to P_SKIP if needed */
  1139.         x264_macroblock_encode( h );
  1141.         x264_bitstream_check_buffer( h );
  1143.         if( h->param.b_cabac )
  1144.         {
  1145.             if( mb_xy > h->sh.i_first_mb && !(h->sh.b_mbaff && (i_mb_y&1)) )
  1146.                 x264_cabac_encode_terminal( &h->cabac );
  1148.             if( IS_SKIP( h->mb.i_type ) )
  1149.                 x264_cabac_mb_skip( h, 1 );
  1150.             else
  1151.             {
  1152.                 if( h->sh.i_type != SLICE_TYPE_I )
  1153.                     x264_cabac_mb_skip( h, 0 );
  1154.                 x264_macroblock_write_cabac( h, &h->cabac );
  1155.             }
  1156.         }
  1157.         else
  1158.         {
  1159.             if( IS_SKIP( h->mb.i_type ) )
  1160.                 i_skip++;
  1161.             else
  1162.             {
  1163.                 if( h->sh.i_type != SLICE_TYPE_I )
  1164.                 {
  1165.                     bs_write_ue( &h->out.bs, i_skip );  /* skip run */
  1166.                     i_skip = 0;
  1167.                 }
  1168.                 x264_macroblock_write_cavlc( h, &h->out.bs );
  1169.             }
  1170.         }
  1172. #if VISUALIZE
  1173.         if( h->param.b_visualize )
  1174.             x264_visualize_mb( h );
  1175. #endif
  1177.         /* save cache */
  1178.         x264_macroblock_cache_save( h );
  1180.         /* accumulate mb stats */
  1181.         h->stat.frame.i_mb_count[h->mb.i_type]++;
  1182.         if( !IS_SKIP(h->mb.i_type) && !IS_INTRA(h->mb.i_type) && !IS_DIRECT(h->mb.i_type) )
  1183.         {
  1184.             if( h->mb.i_partition != D_8x8 )
  1185.                 h->stat.frame.i_mb_partition[h->mb.i_partition] += 4;
  1186.             else
  1187.                 for( i = 0; i < 4; i++ )
  1188.                     h->stat.frame.i_mb_partition[h->mb.i_sub_partition[i]] ++;
  1189.             if( h->param.i_frame_reference > 1 )
  1190.                 for( i_list = 0; i_list <= (h->sh.i_type == SLICE_TYPE_B); i_list++ )
  1191.                     for( i = 0; i < 4; i++ )
  1192.                     {
  1193.                         i_ref = h->mb.cache.ref[i_list][ x264_scan8[4*i] ];
  1194.                         if( i_ref >= 0 )
  1195.                             h->stat.frame.i_mb_count_ref[i_list][i_ref] ++;
  1196.                     }
  1197.         }
  1198.         if( h->mb.i_cbp_luma && !IS_INTRA(h->mb.i_type) )
  1199.         {
  1200.             h->stat.frame.i_mb_count_8x8dct[0] ++;
  1201.             h->stat.frame.i_mb_count_8x8dct[1] += h->mb.b_transform_8x8;
  1202.         }
  1204.         x264_ratecontrol_mb( h, bs_pos(&h->out.bs) + x264_cabac_pos(&h->cabac) - mb_spos );
  1206.         if( h->sh.b_mbaff )
  1207.         {
  1208.             i_mb_x += i_mb_y & 1;
  1209.             i_mb_y ^= i_mb_x < h->sps->i_mb_width;
  1210.         }
  1211.         else
  1212.             i_mb_x++;
  1213.         if(i_mb_x == h->sps->i_mb_width)
  1214.         {
  1215.             i_mb_y++;
  1216.             i_mb_x = 0;
  1217.         }
  1218.     }
  1220.     if( h->param.b_cabac )
  1221.     {
  1222.         x264_cabac_encode_flush( h, &h->cabac );
  1223.         h->out.bs.p = h->cabac.p;
  1224.     }
  1225.     else
  1226.     {
  1227.         if( i_skip > 0 )
  1228.             bs_write_ue( &h->out.bs, i_skip );  /* last skip run */
  1229.         /* rbsp_slice_trailing_bits */
  1230.         bs_rbsp_trailing( &h->out.bs );
  1231.     }
  1233.     x264_nal_end( h );
  1235.     x264_fdec_filter_row( h, h->sps->i_mb_height );
  1237.     /* Compute misc bits */
  1238.     h->stat.frame.i_misc_bits = bs_pos( &h->out.bs )
  1239.                               + NALU_OVERHEAD * 8
  1240.                               - h->stat.frame.i_tex_bits
  1241.                               - h->stat.frame.i_mv_bits;
  1242. }
  1244. static void x264_thread_sync_context( x264_t *dst, x264_t *src )
  1245. {
  1246.     x264_frame_t **f;
  1247.     if( dst == src )
  1248.         return;
  1250.     // reference counting
  1251.     for( f = src->frames.reference; *f; f++ )
  1252.         (*f)->i_reference_count++;
  1253.     for( f = dst->frames.reference; *f; f++ )
  1254.         x264_frame_push_unused( src, *f );
  1255.     src->fdec->i_reference_count++;
  1256.     x264_frame_push_unused( src, dst->fdec );
  1258.     // copy everything except the per-thread pointers and the constants.
  1259.     memcpy( &dst->i_frame, &src->i_frame, offsetof(x264_t, mb.type) - offsetof(x264_t, i_frame) );
  1260.     dst->stat = src->stat;
  1261. }
  1263. static void x264_thread_sync_stat( x264_t *dst, x264_t *src )
  1264. {
  1265.     if( dst == src )
  1266.         return;
  1267.     memcpy( &dst->stat.i_slice_count, &src->stat.i_slice_count, sizeof(dst->stat) - sizeof(dst->stat.frame) );
  1268. }
  1270. static int x264_slices_write( x264_t *h )
  1271. {
  1272.     int i_frame_size;
  1274. #if VISUALIZE
  1275.     if( h->param.b_visualize )
  1276.         x264_visualize_init( h );
  1277. #endif
  1279.     x264_stack_align( x264_slice_write, h );
  1280.     i_frame_size = h->out.nal[h->out.i_nal-1].i_payload;
  1282. #if VISUALIZE
  1283.     if( h->param.b_visualize )
  1284.     {
  1285.         x264_visualize_show( h );
  1286.         x264_visualize_close( h );
  1287.     }
  1288. #endif
  1290.     h->out.i_frame_size = i_frame_size;
  1291.     return 0;
  1292. }
  1294. /****************************************************************************
  1295.  * x264_encoder_encode:
  1296.  *  XXX: i_poc   : is the poc of the current given picture
  1297.  *       i_frame : is the number of the frame being coded
  1298.  *  ex:  type frame poc
  1299.  *       I      0   2*0
  1300.  *       P      1   2*3
  1301.  *       B      2   2*1
  1302.  *       B      3   2*2
  1303.  *       P      4   2*6
  1304.  *       B      5   2*4
  1305.  *       B      6   2*5
  1306.  ****************************************************************************/
  1307. int     x264_encoder_encode( x264_t *h,
  1308.                              x264_nal_t **pp_nal, int *pi_nal,
  1309.                              x264_picture_t *pic_in,
  1310.                              x264_picture_t *pic_out )
  1311. {
  1312.     x264_t *thread_current, *thread_prev, *thread_oldest;
  1313.     int     i_nal_type;
  1314.     int     i_nal_ref_idc;
  1316.     int   i_global_qp;
  1318.     if( h->param.i_threads > 1)
  1319.     {
  1320.         int i = ++h->i_thread_phase;
  1321.         int t = h->param.i_threads;
  1322.         thread_current = h->thread[ i%t ];
  1323.         thread_prev    = h->thread[ (i-1)%t ];
  1324.         thread_oldest  = h->thread[ (i+1)%t ];
  1325.         x264_thread_sync_context( thread_current, thread_prev );
  1326.         x264_thread_sync_ratecontrol( thread_current, thread_prev, thread_oldest );
  1327.         h = thread_current;
  1328. //      fprintf(stderr, "current: %p  prev: %p  oldest: %p n", thread_current, thread_prev, thread_oldest);
  1329.     }
  1330.     else
  1331.     {
  1332.         thread_current =
  1333.         thread_prev    =
  1334.         thread_oldest  = h;
  1335.     }
  1337.     // ok to call this before encoding any frames, since the initial values of fdec have b_kept_as_ref=0
  1338.     x264_reference_update( h );
  1339.     h->fdec->i_lines_completed = -1;
  1341.     /* no data out */
  1342.     *pi_nal = 0;
  1343.     *pp_nal = NULL;
  1345.     /* ------------------- Setup new frame from picture -------------------- */
  1346.     if( pic_in != NULL )
  1347.     {
  1348.         /* 1: Copy the picture to a frame and move it to a buffer */
  1349.         x264_frame_t *fenc = x264_frame_pop_unused( h );
  1351.         if( x264_frame_copy_picture( h, fenc, pic_in ) < 0 )
  1352.             return -1;
  1354.         if( h->param.i_width != 16 * h->sps->i_mb_width ||
  1355.             h->param.i_height != 16 * h->sps->i_mb_height )
  1356.             x264_frame_expand_border_mod16( h, fenc );
  1358.         fenc->i_frame = h->frames.i_input++;
  1360.         x264_frame_push( h->frames.next, fenc );
  1362.         if( h->frames.b_have_lowres )
  1363.             x264_frame_init_lowres( h, fenc );
  1365.         if( h->frames.i_input <= h->frames.i_delay + 1 - h->param.i_threads )
  1366.         {
  1367.             /* Nothing yet to encode */
  1368.             /* waiting for filling bframe buffer */
  1369.             pic_out->i_type = X264_TYPE_AUTO;
  1370.             return 0;
  1371.         }
  1372.     }
  1374.     if( h->frames.current[0] == NULL )
  1375.     {
  1376.         int bframes = 0;
  1377.         /* 2: Select frame types */
  1378.         if( h->frames.next[0] == NULL )
  1379.         {
  1380.             x264_encoder_frame_end( thread_oldest, thread_current, pp_nal, pi_nal, pic_out );
  1381.             return 0;
  1382.         }
  1384.         x264_slicetype_decide( h );
  1386.         /* 3: move some B-frames and 1 non-B to encode queue */
  1387.         while( IS_X264_TYPE_B( h->frames.next[bframes]->i_type ) )
  1388.             bframes++;
  1389.         x264_frame_push( h->frames.current, x264_frame_shift( &h->frames.next[bframes] ) );
  1390.         /* FIXME: when max B-frames > 3, BREF may no longer be centered after GOP closing */
  1391.         if( h->param.b_bframe_pyramid && bframes > 1 )
  1392.         {
  1393.             x264_frame_t *mid = x264_frame_shift( &h->frames.next[bframes/2] );
  1394.             mid->i_type = X264_TYPE_BREF;
  1395.             x264_frame_push( h->frames.current, mid );
  1396.             bframes--;
  1397.         }
  1398.         while( bframes-- )
  1399.             x264_frame_push( h->frames.current, x264_frame_shift( h->frames.next ) );
  1400.     }
  1402.     /* ------------------- Get frame to be encoded ------------------------- */
  1403.     /* 4: get picture to encode */
  1404.     h->fenc = x264_frame_shift( h->frames.current );
  1405.     if( h->fenc == NULL )
  1406.     {
  1407.         /* Nothing yet to encode (ex: waiting for I/P with B frames) */
  1408.         /* waiting for filling bframe buffer */
  1409.         pic_out->i_type = X264_TYPE_AUTO;
  1410.         return 0;
  1411.     }
  1413. do_encode:
  1415.     if( h->fenc->i_type == X264_TYPE_IDR )
  1416.     {
  1417.         h->frames.i_last_idr = h->fenc->i_frame;
  1418.     }
  1420.     /* ------------------- Setup frame context ----------------------------- */
  1421.     /* 5: Init data dependent of frame type */
  1422.     if( h->fenc->i_type == X264_TYPE_IDR )
  1423.     {
  1424.         /* reset ref pictures */
  1425.         x264_reference_reset( h );
  1427.         i_nal_type    = NAL_SLICE_IDR;
  1428.         i_nal_ref_idc = NAL_PRIORITY_HIGHEST;
  1429.         h->sh.i_type = SLICE_TYPE_I;
  1430.     }
  1431.     else if( h->fenc->i_type == X264_TYPE_I )
  1432.     {
  1433.         i_nal_type    = NAL_SLICE;
  1434.         i_nal_ref_idc = NAL_PRIORITY_HIGH; /* Not completely true but for now it is (as all I/P are kept as ref)*/
  1435.         h->sh.i_type = SLICE_TYPE_I;
  1436.     }
  1437.     else if( h->fenc->i_type == X264_TYPE_P )
  1438.     {
  1439.         i_nal_type    = NAL_SLICE;
  1440.         i_nal_ref_idc = NAL_PRIORITY_HIGH; /* Not completely true but for now it is (as all I/P are kept as ref)*/
  1441.         h->sh.i_type = SLICE_TYPE_P;
  1442.     }
  1443.     else if( h->fenc->i_type == X264_TYPE_BREF )
  1444.     {
  1445.         i_nal_type    = NAL_SLICE;
  1446.         i_nal_ref_idc = NAL_PRIORITY_HIGH; /* maybe add MMCO to forget it? -> low */
  1447.         h->sh.i_type = SLICE_TYPE_B;
  1448.     }
  1449.     else    /* B frame */
  1450.     {
  1451.         i_nal_type    = NAL_SLICE;
  1452.         i_nal_ref_idc = NAL_PRIORITY_DISPOSABLE;
  1453.         h->sh.i_type = SLICE_TYPE_B;
  1454.     }
  1456.     h->fdec->i_poc =
  1457.     h->fenc->i_poc = 2 * (h->fenc->i_frame - h->frames.i_last_idr);
  1458.     h->fdec->i_type = h->fenc->i_type;
  1459.     h->fdec->i_frame = h->fenc->i_frame;
  1460.     h->fenc->b_kept_as_ref =
  1461.     h->fdec->b_kept_as_ref = i_nal_ref_idc != NAL_PRIORITY_DISPOSABLE && h->param.i_keyint_max > 1;
  1465.     /* ------------------- Init                ----------------------------- */
  1466.     /* build ref list 0/1 */
  1467.     x264_reference_build_list( h, h->fdec->i_poc );
  1469.     /* Init the rate control */
  1470.     x264_ratecontrol_start( h, h->fenc->i_qpplus1 );
  1471.     i_global_qp = x264_ratecontrol_qp( h );
  1473.     pic_out->i_qpplus1 =
  1474.     h->fdec->i_qpplus1 = i_global_qp + 1;
  1476.     if( h->sh.i_type == SLICE_TYPE_B )
  1477.         x264_macroblock_bipred_init( h );
  1479.     /* ------------------------ Create slice header  ----------------------- */
  1480.     x264_slice_init( h, i_nal_type, i_global_qp );
  1482.     if( i_nal_ref_idc != NAL_PRIORITY_DISPOSABLE )
  1483.         h->i_frame_num++;
  1485.     /* ---------------------- Write the bitstream -------------------------- */
  1486.     /* Init bitstream context */
  1487.     h->out.i_nal = 0;
  1488.     bs_init( &h->out.bs, h->out.p_bitstream, h->out.i_bitstream );
  1490.     if(h->param.b_aud){
  1491.         int pic_type;
  1493.         if(h->sh.i_type == SLICE_TYPE_I)
  1494.             pic_type = 0;
  1495.         else if(h->sh.i_type == SLICE_TYPE_P)
  1496.             pic_type = 1;
  1497.         else if(h->sh.i_type == SLICE_TYPE_B)
  1498.             pic_type = 2;
  1499.         else
  1500.             pic_type = 7;
  1502.         x264_nal_start(h, NAL_AUD, NAL_PRIORITY_DISPOSABLE);
  1503.         bs_write(&h->out.bs, 3, pic_type);
  1504.         bs_rbsp_trailing(&h->out.bs);
  1505.         x264_nal_end(h);
  1506.     }
  1508.     h->i_nal_type = i_nal_type;
  1509.     h->i_nal_ref_idc = i_nal_ref_idc;
  1511.     /* Write SPS and PPS */
  1512.     if( i_nal_type == NAL_SLICE_IDR && h->param.b_repeat_headers )
  1513.     {
  1514.         if( h->fenc->i_frame == 0 )
  1515.         {
  1516.             /* identify ourself */
  1517.             x264_nal_start( h, NAL_SEI, NAL_PRIORITY_DISPOSABLE );
  1518.             x264_sei_version_write( h, &h->out.bs );
  1519.             x264_nal_end( h );
  1520.         }
  1522.         /* generate sequence parameters */
  1523.         x264_nal_start( h, NAL_SPS, NAL_PRIORITY_HIGHEST );
  1524.         x264_sps_write( &h->out.bs, h->sps );
  1525.         x264_nal_end( h );
  1527.         /* generate picture parameters */
  1528.         x264_nal_start( h, NAL_PPS, NAL_PRIORITY_HIGHEST );
  1529.         x264_pps_write( &h->out.bs, h->pps );
  1530.         x264_nal_end( h );
  1531.     }
  1533.     /* Write frame */
  1534.     if( h->param.i_threads > 1 )
  1535.     {
  1536.         x264_pthread_create( &h->thread_handle, NULL, (void*)x264_slices_write, h );
  1537.         h->b_thread_active = 1;
  1538.     }
  1539.     else
  1540.         x264_slices_write( h );
  1542.     /* restore CPU state (before using float again) */
  1543.     x264_emms();
  1545.     if( h->sh.i_type == SLICE_TYPE_P && !h->param.rc.b_stat_read
  1546.         && h->param.i_scenecut_threshold >= 0
  1547.         && !h->param.b_pre_scenecut )
  1548.     {
  1549.         const int *mbs = h->stat.frame.i_mb_count;
  1550.         int i_mb_i = mbs[I_16x16] + mbs[I_8x8] + mbs[I_4x4];
  1551.         int i_mb_p = mbs[P_L0] + mbs[P_8x8];
  1552.         int i_mb_s = mbs[P_SKIP];
  1553.         int i_mb   = h->sps->i_mb_width * h->sps->i_mb_height;
  1554.         int64_t i_inter_cost = h->stat.frame.i_inter_cost;
  1555.         int64_t i_intra_cost = h->stat.frame.i_intra_cost;
  1557.         float f_bias;
  1558.         int i_gop_size = h->fenc->i_frame - h->frames.i_last_idr;
  1559.         float f_thresh_max = h->param.i_scenecut_threshold / 100.0;
  1560.         /* magic numbers pulled out of thin air */
  1561.         float f_thresh_min = f_thresh_max * h->param.i_keyint_min
  1562.                              / ( h->param.i_keyint_max * 4 );
  1563.         if( h->param.i_keyint_min == h->param.i_keyint_max )
  1564.              f_thresh_min= f_thresh_max;
  1566.         /* macroblock_analyse() doesn't further analyse skipped mbs,
  1567.          * so we have to guess their cost */
  1568.         if( h->stat.frame.i_mbs_analysed > 0 )
  1569.             i_intra_cost = i_intra_cost * i_mb / h->stat.frame.i_mbs_analysed;
  1571.         if( i_gop_size < h->param.i_keyint_min / 4 )
  1572.             f_bias = f_thresh_min / 4;
  1573.         else if( i_gop_size <= h->param.i_keyint_min )
  1574.             f_bias = f_thresh_min * i_gop_size / h->param.i_keyint_min;
  1575.         else
  1576.         {
  1577.             f_bias = f_thresh_min
  1578.                      + ( f_thresh_max - f_thresh_min )
  1579.                        * ( i_gop_size - h->param.i_keyint_min )
  1580.                        / ( h->param.i_keyint_max - h->param.i_keyint_min );
  1581.         }
  1582.         f_bias = X264_MIN( f_bias, 1.0 );
  1584.         /* Bad P will be reencoded as I */
  1585.         if( h->stat.frame.i_mbs_analysed > 0 &&
  1586.             i_inter_cost >= (1.0 - f_bias) * i_intra_cost )
  1587.         {
  1588.             int b;
  1590.             x264_log( h, X264_LOG_DEBUG, "scene cut at %d Icost:%.0f Pcost:%.0f ratio:%.4f bias:%.4f gop:%d (imb:%d pmb:%d smb:%d)n",
  1591.                       h->fenc->i_frame,
  1592.                       (double)i_intra_cost, (double)i_inter_cost,
  1593.                       1. - (double)i_inter_cost / i_intra_cost,
  1594.                       f_bias, i_gop_size,
  1595.                       i_mb_i, i_mb_p, i_mb_s );
  1597.             /* Restore frame num */
  1598.             h->i_frame_num--;
  1600.             for( b = 0; h->frames.current[b] && IS_X264_TYPE_B( h->frames.current[b]->i_type ); b++ );
  1601.             if( b > 0 )
  1602.             {
  1603.                 /* If using B-frames, force GOP to be closed.
  1604.                  * Even if this frame is going to be I and not IDR, forcing a
  1605.                  * P-frame before the scenecut will probably help compression.
  1606.                  *
  1607.                  * We don't yet know exactly which frame is the scene cut, so
  1608.                  * we can't assign an I-frame. Instead, change the previous
  1609.                  * B-frame to P, and rearrange coding order. */
  1611.                 if( h->param.b_bframe_adaptive || b > 1 )
  1612.                     h->fenc->i_type = X264_TYPE_AUTO;
  1613.                 x264_frame_sort_pts( h->frames.current );
  1614.                 x264_frame_unshift( h->frames.next, h->fenc );
  1615.                 h->fenc = h->frames.current[b-1];
  1616.                 h->frames.current[b-1] = NULL;
  1617.                 h->fenc->i_type = X264_TYPE_P;
  1618.                 x264_frame_sort_dts( h->frames.current );
  1619.             }
  1620.             /* Do IDR if needed */
  1621.             else if( i_gop_size >= h->param.i_keyint_min )
  1622.             {
  1623.                 /* Reset */
  1624.                 h->i_frame_num = 0;
  1626.                 /* Reinit field of fenc */
  1627.                 h->fenc->i_type = X264_TYPE_IDR;
  1628.                 h->fenc->i_poc = 0;
  1630.                 /* Put enqueued frames back in the pool */
  1631.                 while( h->frames.current[0] )
  1632.                     x264_frame_push( h->frames.next, x264_frame_shift( h->frames.current ) );
  1633.                 x264_frame_sort_pts( h->frames.next );
  1634.             }
  1635.             else
  1636.             {
  1637.                 h->fenc->i_type = X264_TYPE_I;
  1638.             }
  1639.             goto do_encode;
  1640.         }
  1641.     }
  1643.     x264_encoder_frame_end( thread_oldest, thread_current, pp_nal, pi_nal, pic_out );
  1644.     return 0;
  1645. }
  1647. static void x264_encoder_frame_end( x264_t *h, x264_t *thread_current,
  1648.                                     x264_nal_t **pp_nal, int *pi_nal,
  1649.                                     x264_picture_t *pic_out )
  1650. {
  1651.     int i, i_list;
  1652.     char psz_message[80];
  1654.     if( h->b_thread_active )
  1655.     {
  1656.         x264_pthread_join( h->thread_handle, NULL );
  1657.         h->b_thread_active = 0;
  1658.     }
  1659.     if( !h->out.i_nal )
  1660.     {
  1661.         pic_out->i_type = X264_TYPE_AUTO;
  1662.         return;
  1663.     }
  1665.     x264_frame_push_unused( thread_current, h->fenc );
  1667.     /* End bitstream, set output  */
  1668.     *pi_nal = h->out.i_nal;
  1669.     *pp_nal = h->out.nal;
  1670.     h->out.i_nal = 0;
  1672.     /* Set output picture properties */
  1673.     if( h->sh.i_type == SLICE_TYPE_I )
  1674.         pic_out->i_type = h->i_nal_type == NAL_SLICE_IDR ? X264_TYPE_IDR : X264_TYPE_I;
  1675.     else if( h->sh.i_type == SLICE_TYPE_P )
  1676.         pic_out->i_type = X264_TYPE_P;
  1677.     else
  1678.         pic_out->i_type = X264_TYPE_B;
  1679.     pic_out->i_pts = h->fenc->i_pts;
  1681.     pic_out->img.i_plane = h->fdec->i_plane;
  1682.     for(i = 0; i < 4; i++){
  1683.         pic_out->img.i_stride[i] = h->fdec->i_stride[i];
  1684.         pic_out->img.plane[i] = h->fdec->plane[i];
  1685.     }
  1687.     /* ---------------------- Update encoder state ------------------------- */
  1689.     /* update rc */
  1690.     x264_emms();
  1691.     x264_ratecontrol_end( h, h->out.i_frame_size * 8 );
  1693.     /* restore CPU state (before using float again) */
  1694.     x264_emms();
  1696.     x264_noise_reduction_update( thread_current );
  1698.     /* ---------------------- Compute/Print statistics --------------------- */
  1699.     x264_thread_sync_stat( h, h->thread[0] );
  1701.     /* Slice stat */
  1702.     h->stat.i_slice_count[h->sh.i_type]++;
  1703.     h->stat.i_slice_size[h->sh.i_type] += h->out.i_frame_size + NALU_OVERHEAD;
  1704.     h->stat.f_slice_qp[h->sh.i_type] += h->fdec->f_qp_avg_aq;
  1706.     for( i = 0; i < X264_MBTYPE_MAX; i++ )
  1707.         h->stat.i_mb_count[h->sh.i_type][i] += h->stat.frame.i_mb_count[i];
  1708.     for( i = 0; i < X264_PARTTYPE_MAX; i++ )
  1709.         h->stat.i_mb_partition[h->sh.i_type][i] += h->stat.frame.i_mb_partition[i];
  1710.     for( i = 0; i < 2; i++ )
  1711.         h->stat.i_mb_count_8x8dct[i] += h->stat.frame.i_mb_count_8x8dct[i];
  1712.     if( h->sh.i_type != SLICE_TYPE_I )
  1713.         for( i_list = 0; i_list < 2; i_list++ )
  1714.             for( i = 0; i < 32; i++ )
  1715.                 h->stat.i_mb_count_ref[h->sh.i_type][i_list][i] += h->stat.frame.i_mb_count_ref[i_list][i];
  1716.     if( h->sh.i_type == SLICE_TYPE_P )
  1717.         h->stat.i_consecutive_bframes[h->fdec->i_frame - h->fref0[0]->i_frame - 1]++;
  1718.     if( h->sh.i_type == SLICE_TYPE_B )
  1719.     {
  1720.         h->stat.i_direct_frames[ h->sh.b_direct_spatial_mv_pred ] ++;
  1721.         if( h->mb.b_direct_auto_write )
  1722.         {
  1723.             //FIXME somewhat arbitrary time constants
  1724.             if( h->stat.i_direct_score[0] + h->stat.i_direct_score[1] > h->mb.i_mb_count )
  1725.             {
  1726.                 for( i = 0; i < 2; i++ )
  1727.                     h->stat.i_direct_score[i] = h->stat.i_direct_score[i] * 9/10;
  1728.             }
  1729.             for( i = 0; i < 2; i++ )
  1730.                 h->stat.i_direct_score[i] += h->stat.frame.i_direct_score[i];
  1731.         }
  1732.     }
  1734.     psz_message[0] = '';
  1735.     if( h->param.analyse.b_psnr )
  1736.     {
  1737.         int64_t ssd[3] = {
  1738.             h->stat.frame.i_ssd[0],
  1739.             h->stat.frame.i_ssd[1],
  1740.             h->stat.frame.i_ssd[2],
  1741.         };
  1743.         h->stat.i_ssd_global[h->sh.i_type] += ssd[0] + ssd[1] + ssd[2];
  1744.         h->stat.f_psnr_average[h->sh.i_type] += x264_psnr( ssd[0] + ssd[1] + ssd[2], 3 * h->param.i_width * h->param.i_height / 2 );
  1745.         h->stat.f_psnr_mean_y[h->sh.i_type] += x264_psnr( ssd[0], h->param.i_width * h->param.i_height );
  1746.         h->stat.f_psnr_mean_u[h->sh.i_type] += x264_psnr( ssd[1], h->param.i_width * h->param.i_height / 4 );
  1747.         h->stat.f_psnr_mean_v[h->sh.i_type] += x264_psnr( ssd[2], h->param.i_width * h->param.i_height / 4 );
  1749.         snprintf( psz_message, 80, " PSNR Y:%5.2f U:%5.2f V:%5.2f",
  1750.                   x264_psnr( ssd[0], h->param.i_width * h->param.i_height ),
  1751.                   x264_psnr( ssd[1], h->param.i_width * h->param.i_height / 4),
  1752.                   x264_psnr( ssd[2], h->param.i_width * h->param.i_height / 4) );
  1753.     }
  1755.     if( h->param.analyse.b_ssim )
  1756.     {
  1757.         double ssim_y = h->stat.frame.f_ssim
  1758.                       / (((h->param.i_width-6)>>2) * ((h->param.i_height-6)>>2));
  1759.         h->stat.f_ssim_mean_y[h->sh.i_type] += ssim_y;
  1760.         snprintf( psz_message + strlen(psz_message), 80 - strlen(psz_message),
  1761.                   " SSIM Y:%.5f", ssim_y );
  1762.     }
  1763.     psz_message[79] = '';
  1765.     x264_log( h, X264_LOG_DEBUG,
  1766.                   "frame=%4d QP=%.2f NAL=%d Slice:%c Poc:%-3d I:%-4d P:%-4d SKIP:%-4d size=%d bytes%sn",
  1767.               h->i_frame,
  1768.               h->fdec->f_qp_avg_aq,
  1769.               h->i_nal_ref_idc,
  1770.               h->sh.i_type == SLICE_TYPE_I ? 'I' : (h->sh.i_type == SLICE_TYPE_P ? 'P' : 'B' ),
  1771.               h->fdec->i_poc,
  1772.               h->stat.frame.i_mb_count_i,
  1773.               h->stat.frame.i_mb_count_p,
  1774.               h->stat.frame.i_mb_count_skip,
  1775.               h->out.i_frame_size,
  1776.               psz_message );
  1778.     // keep stats all in one place
  1779.     x264_thread_sync_stat( h->thread[0], h );
  1780.     // for the use of the next frame
  1781.     x264_thread_sync_stat( thread_current, h );
  1783. #ifdef DEBUG_MB_TYPE
  1784. {
  1785.     static const char mb_chars[] = { 'i', 'i', 'I', 'C', 'P', '8', 'S',
  1786.         'D', '<', 'X', 'B', 'X', '>', 'B', 'B', 'B', 'B', '8', 'S' };
  1787.     int mb_xy;
  1788.     for( mb_xy = 0; mb_xy < h->sps->i_mb_width * h->sps->i_mb_height; mb_xy++ )
  1789.     {
  1790.         if( h->mb.type[mb_xy] < X264_MBTYPE_MAX && h->mb.type[mb_xy] >= 0 )
  1791.             fprintf( stderr, "%c ", mb_chars[ h->mb.type[mb_xy] ] );
  1792.         else
  1793.             fprintf( stderr, "? " );
  1795.         if( (mb_xy+1) % h->sps->i_mb_width == 0 )
  1796.             fprintf( stderr, "n" );
  1797.     }
  1798. }
  1799. #endif
  1801.     if( h->param.psz_dump_yuv )
  1802.         x264_frame_dump( h );
  1803. }
  1805. static void x264_print_intra( int64_t *i_mb_count, double i_count, int b_print_pcm, char *intra )
  1806. {
  1807.     intra += sprintf( intra, "I16..4%s: %4.1f%% %4.1f%% %4.1f%%",
  1808.         b_print_pcm ? "..PCM" : "",
  1809.         i_mb_count[I_16x16]/ i_count,
  1810.         i_mb_count[I_8x8]  / i_count,
  1811.         i_mb_count[I_4x4]  / i_count );
  1812.     if( b_print_pcm )
  1813.         sprintf( intra, " %4.1f%%", i_mb_count[I_PCM]  / i_count );
  1814. }
  1816. /****************************************************************************
  1817.  * x264_encoder_close:
  1818.  ****************************************************************************/
  1819. void    x264_encoder_close  ( x264_t *h )
  1820. {
  1821.     int64_t i_yuv_size = 3 * h->param.i_width * h->param.i_height / 2;
  1822.     int64_t i_mb_count_size[2][7] = {{0}};
  1823.     char buf[200];
  1824.     int i, j, i_list, i_type;
  1825.     int b_print_pcm = h->stat.i_mb_count[SLICE_TYPE_I][I_PCM]
  1826.                    || h->stat.i_mb_count[SLICE_TYPE_P][I_PCM]
  1827.                    || h->stat.i_mb_count[SLICE_TYPE_B][I_PCM];
  1829.     for( i=0; i<h->param.i_threads; i++ )
  1830.     {
  1831.         // don't strictly have to wait for the other threads, but it's simpler than canceling them
  1832.         if( h->thread[i]->b_thread_active )
  1833.         {
  1834.             x264_pthread_join( h->thread[i]->thread_handle, NULL );
  1835.             assert( h->thread[i]->fenc->i_reference_count == 1 );
  1836.             x264_frame_delete( h->thread[i]->fenc );
  1837.         }
  1838.     }
  1840.     /* Slices used and PSNR */
  1841.     for( i=0; i<5; i++ )
  1842.     {
  1843.         static const int slice_order[] = { SLICE_TYPE_I, SLICE_TYPE_SI, SLICE_TYPE_P, SLICE_TYPE_SP, SLICE_TYPE_B };
  1844.         static const char *slice_name[] = { "P", "B", "I", "SP", "SI" };
  1845.         int i_slice = slice_order[i];
  1847.         if( h->stat.i_slice_count[i_slice] > 0 )
  1848.         {
  1849.             const int i_count = h->stat.i_slice_count[i_slice];
  1850.             if( h->param.analyse.b_psnr )
  1851.             {
  1852.                 x264_log( h, X264_LOG_INFO,
  1853.                           "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:%5.2fn",
  1854.                           slice_name[i_slice],
  1855.                           i_count,
  1856.                           h->stat.f_slice_qp[i_slice] / i_count,
  1857.                           (double)h->stat.i_slice_size[i_slice] / i_count,
  1858.                           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,
  1859.                           h->stat.f_psnr_average[i_slice] / i_count,
  1860.                           x264_psnr( h->stat.i_ssd_global[i_slice], i_count * i_yuv_size ) );
  1861.             }
  1862.             else
  1863.             {
  1864.                 x264_log( h, X264_LOG_INFO,
  1865.                           "slice %s:%-5d Avg QP:%5.2f  size:%6.0fn",
  1866.                           slice_name[i_slice],
  1867.                           i_count,
  1868.                           h->stat.f_slice_qp[i_slice] / i_count,
  1869.                           (double)h->stat.i_slice_size[i_slice] / i_count );
  1870.             }
  1871.         }
  1872.     }
  1873.     if( h->param.i_bframe && h->stat.i_slice_count[SLICE_TYPE_P] )
  1874.     {
  1875.         char *p = buf;
  1876.         int den = 0;
  1877.         // weight by number of frames (including the P-frame) that are in a sequence of N B-frames
  1878.         for( i=0; i<=h->param.i_bframe; i++ )
  1879.             den += (i+1) * h->stat.i_consecutive_bframes[i];
  1880.         for( i=0; i<=h->param.i_bframe; i++ )
  1881.             p += sprintf( p, " %4.1f%%", 100. * (i+1) * h->stat.i_consecutive_bframes[i] / den );
  1882.         x264_log( h, X264_LOG_INFO, "consecutive B-frames:%sn", buf );
  1883.     }
  1885.     for( i_type = 0; i_type < 2; i_type++ )
  1886.         for( i = 0; i < X264_PARTTYPE_MAX; i++ )
  1887.         {
  1888.             if( i == D_DIRECT_8x8 ) continue; /* direct is counted as its own type */
  1889.             i_mb_count_size[i_type][x264_mb_partition_pixel_table[i]] += h->stat.i_mb_partition[i_type][i];
  1890.         }
  1892.     /* MB types used */
  1893.     if( h->stat.i_slice_count[SLICE_TYPE_I] > 0 )
  1894.     {
  1895.         int64_t *i_mb_count = h->stat.i_mb_count[SLICE_TYPE_I];
  1896.         double i_count = h->stat.i_slice_count[SLICE_TYPE_I] * h->mb.i_mb_count / 100.0;
  1897.         x264_print_intra( i_mb_count, i_count, b_print_pcm, buf );
  1898.         x264_log( h, X264_LOG_INFO, "mb I  %sn", buf );
  1899.     }
  1900.     if( h->stat.i_slice_count[SLICE_TYPE_P] > 0 )
  1901.     {
  1902.         int64_t *i_mb_count = h->stat.i_mb_count[SLICE_TYPE_P];
  1903.         double i_count = h->stat.i_slice_count[SLICE_TYPE_P] * h->mb.i_mb_count / 100.0;
  1904.         int64_t *i_mb_size = i_mb_count_size[SLICE_TYPE_P];
  1905.         x264_print_intra( i_mb_count, i_count, b_print_pcm, buf );
  1906.         x264_log( h, X264_LOG_INFO,
  1907.                   "mb P  %s  P16..4: %4.1f%% %4.1f%% %4.1f%% %4.1f%% %4.1f%%    skip:%4.1f%%n",
  1908.                   buf,
  1909.                   i_mb_size[PIXEL_16x16] / (i_count*4),
  1910.                   (i_mb_size[PIXEL_16x8] + i_mb_size[PIXEL_8x16]) / (i_count*4),
  1911.                   i_mb_size[PIXEL_8x8] / (i_count*4),
  1912.                   (i_mb_size[PIXEL_8x4] + i_mb_size[PIXEL_4x8]) / (i_count*4),
  1913.                   i_mb_size[PIXEL_4x4] / (i_count*4),
  1914.                   i_mb_count[P_SKIP] / i_count );
  1915.     }
  1916.     if( h->stat.i_slice_count[SLICE_TYPE_B] > 0 )
  1917.     {
  1918.         int64_t *i_mb_count = h->stat.i_mb_count[SLICE_TYPE_B];
  1919.         double i_count = h->stat.i_slice_count[SLICE_TYPE_B] * h->mb.i_mb_count / 100.0;
  1920.         double i_mb_list_count;
  1921.         int64_t *i_mb_size = i_mb_count_size[SLICE_TYPE_B];
  1922.         int64_t list_count[3] = {0}; /* 0 == L0, 1 == L1, 2 == BI */
  1923.         x264_print_intra( i_mb_count, i_count, b_print_pcm, buf );
  1924.         for( i = 0; i < X264_PARTTYPE_MAX; i++ )
  1925.             for( j = 0; j < 2; j++ )
  1926.             {
  1927.                 int l0 = x264_mb_type_list0_table[i][j];
  1928.                 int l1 = x264_mb_type_list1_table[i][j];
  1929.                 if( l0 || l1 )
  1930.                     list_count[l1+l0*l1] += h->stat.i_mb_count[SLICE_TYPE_B][i] * 2;
  1931.             }
  1932.         list_count[0] += h->stat.i_mb_partition[SLICE_TYPE_B][D_L0_8x8];
  1933.         list_count[1] += h->stat.i_mb_partition[SLICE_TYPE_B][D_L1_8x8];
  1934.         list_count[2] += h->stat.i_mb_partition[SLICE_TYPE_B][D_BI_8x8];
  1935.         i_mb_count[B_DIRECT] += (h->stat.i_mb_partition[SLICE_TYPE_B][D_DIRECT_8x8]+2)/4;
  1936.         i_mb_list_count = (list_count[0] + list_count[1] + list_count[2]) / 100.0;
  1937.         x264_log( h, X264_LOG_INFO,
  1938.                   "mb B  %s  B16..8: %4.1f%% %4.1f%% %4.1f%%  direct:%4.1f%%  skip:%4.1f%%  L0:%4.1f%% L1:%4.1f%% BI:%4.1f%%n",
  1939.                   buf,
  1940.                   i_mb_size[PIXEL_16x16] / (i_count*4),
  1941.                   (i_mb_size[PIXEL_16x8] + i_mb_size[PIXEL_8x16]) / (i_count*4),
  1942.                   i_mb_size[PIXEL_8x8] / (i_count*4),
  1943.                   i_mb_count[B_DIRECT] / i_count,
  1944.                   i_mb_count[B_SKIP]   / i_count,
  1945.                   list_count[0] / i_mb_list_count,
  1946.                   list_count[1] / i_mb_list_count,
  1947.                   list_count[2] / i_mb_list_count );
  1948.     }
  1950.     x264_ratecontrol_summary( h );
  1952.     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 )
  1953.     {
  1954.         const int i_count = h->stat.i_slice_count[SLICE_TYPE_I] +
  1955.                             h->stat.i_slice_count[SLICE_TYPE_P] +
  1956.                             h->stat.i_slice_count[SLICE_TYPE_B];
  1957.         float fps = (float) h->param.i_fps_num / h->param.i_fps_den;
  1958. #define SUM3(p) (p[SLICE_TYPE_I] + p[SLICE_TYPE_P] + p[SLICE_TYPE_B])
  1959. #define SUM3b(p,o) (p[SLICE_TYPE_I][o] + p[SLICE_TYPE_P][o] + p[SLICE_TYPE_B][o])
  1960.         float f_bitrate = fps * SUM3(h->stat.i_slice_size) / i_count / 125;
  1962.         if( h->pps->b_transform_8x8_mode )
  1963.         {
  1964.             int64_t i_i8x8 = SUM3b( h->stat.i_mb_count, I_8x8 );
  1965.             int64_t i_intra = i_i8x8 + SUM3b( h->stat.i_mb_count, I_4x4 )
  1966.                                      + SUM3b( h->stat.i_mb_count, I_16x16 );
  1967.             x264_log( h, X264_LOG_INFO, "8x8 transform  intra:%.1f%%  inter:%.1f%%n",
  1968.                       100. * i_i8x8 / i_intra,
  1969.                       100. * h->stat.i_mb_count_8x8dct[1] / h->stat.i_mb_count_8x8dct[0] );
  1970.         }
  1972.         if( h->param.analyse.i_direct_mv_pred == X264_DIRECT_PRED_AUTO
  1973.             && h->stat.i_slice_count[SLICE_TYPE_B] )
  1974.         {
  1975.             x264_log( h, X264_LOG_INFO, "direct mvs  spatial:%.1f%%  temporal:%.1f%%n",
  1976.                       h->stat.i_direct_frames[1] * 100. / h->stat.i_slice_count[SLICE_TYPE_B],
  1977.                       h->stat.i_direct_frames[0] * 100. / h->stat.i_slice_count[SLICE_TYPE_B] );
  1978.         }
  1980.         for( i_list = 0; i_list < 2; i_list++ )
  1981.         {
  1982.             int i_slice;
  1983.             for( i_slice = 0; i_slice < 2; i_slice++ )
  1984.             {
  1985.                 char *p = buf;
  1986.                 int64_t i_den = 0;
  1987.                 int i_max = 0;
  1988.                 for( i = 0; i < 32; i++ )
  1989.                     if( h->stat.i_mb_count_ref[i_slice][i_list][i] )
  1990.                     {
  1991.                         i_den += h->stat.i_mb_count_ref[i_slice][i_list][i];
  1992.                         i_max = i;
  1993.                     }
  1994.                 if( i_max == 0 )
  1995.                     continue;
  1996.                 for( i = 0; i <= i_max; i++ )
  1997.                     p += sprintf( p, " %4.1f%%", 100. * h->stat.i_mb_count_ref[i_slice][i_list][i] / i_den );
  1998.                 x264_log( h, X264_LOG_INFO, "ref %c L%d %sn", "PB"[i_slice], i_list, buf );
  1999.             }
  2000.         }
  2002.         if( h->param.analyse.b_ssim )
  2003.         {
  2004.             x264_log( h, X264_LOG_INFO,
  2005.                       "SSIM Mean Y:%.7fn",
  2006.                       SUM3( h->stat.f_ssim_mean_y ) / i_count );
  2007.         }
  2008.         if( h->param.analyse.b_psnr )
  2009.         {
  2010.             x264_log( h, X264_LOG_INFO,
  2011.                       "PSNR Mean Y:%6.3f U:%6.3f V:%6.3f Avg:%6.3f Global:%6.3f kb/s:%.2fn",
  2012.                       SUM3( h->stat.f_psnr_mean_y ) / i_count,
  2013.                       SUM3( h->stat.f_psnr_mean_u ) / i_count,
  2014.                       SUM3( h->stat.f_psnr_mean_v ) / i_count,
  2015.                       SUM3( h->stat.f_psnr_average ) / i_count,
  2016.                       x264_psnr( SUM3( h->stat.i_ssd_global ), i_count * i_yuv_size ),
  2017.                       f_bitrate );
  2018.         }
  2019.         else
  2020.             x264_log( h, X264_LOG_INFO, "kb/s:%.1fn", f_bitrate );
  2021.     }
  2023.     /* rc */
  2024.     x264_ratecontrol_delete( h );
  2026.     /* param */
  2027.     if( h->param.rc.psz_stat_out )
  2028.         free( h->param.rc.psz_stat_out );
  2029.     if( h->param.rc.psz_stat_in )
  2030.         free( h->param.rc.psz_stat_in );
  2032.     x264_cqm_delete( h );
  2034.     if( h->param.i_threads > 1)
  2035.         h = h->thread[ h->i_thread_phase % h->param.i_threads ];
  2037.     /* frames */
  2038.     for( i = 0; h->frames.current[i]; i++ )
  2039.     {
  2040.         assert( h->frames.current[i]->i_reference_count == 1 );
  2041.         x264_frame_delete( h->frames.current[i] );
  2042.     }
  2043.     for( i = 0; h->frames.next[i]; i++ )
  2044.     {
  2045.         assert( h->frames.next[i]->i_reference_count == 1 );
  2046.         x264_frame_delete( h->frames.next[i] );
  2047.     }
  2048.     for( i = 0; h->frames.unused[i]; i++ )
  2049.     {
  2050.         assert( h->frames.unused[i]->i_reference_count == 0 );
  2051.         x264_frame_delete( h->frames.unused[i] );
  2052.     }
  2054.     h = h->thread[0];
  2056.     for( i = h->param.i_threads - 1; i >= 0; i-- )
  2057.     {
  2058.         x264_frame_t **frame;
  2060.         for( frame = h->thread[i]->frames.reference; *frame; frame++ )
  2061.         {
  2062.             assert( (*frame)->i_reference_count > 0 );
  2063.             (*frame)->i_reference_count--;
  2064.             if( (*frame)->i_reference_count == 0 )
  2065.                 x264_frame_delete( *frame );
  2066.         }
  2067.         frame = &h->thread[i]->fdec;
  2068.         assert( (*frame)->i_reference_count > 0 );
  2069.         (*frame)->i_reference_count--;
  2070.         if( (*frame)->i_reference_count == 0 )
  2071.             x264_frame_delete( *frame );
  2073.         x264_macroblock_cache_end( h->thread[i] );
  2074.         x264_free( h->thread[i]->out.p_bitstream );
  2075.         x264_free( h->thread[i] );
  2076.     }
  2077. }