1 /*****************************************************************************
2 * encoder.c: top-level encoder functions
3 *****************************************************************************
4 * Copyright (C) 2003-2011 x264 project
6 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
7 * Loren Merritt <lorenm@u.washington.edu>
8 * Fiona Glaser <fiona@x264.com>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
24 * This program is also available under a commercial proprietary license.
25 * For more information, contact us at licensing@x264.com.
26 *****************************************************************************/
28 #include "common/common.h"
32 #include "ratecontrol.h"
33 #include "macroblock.h"
37 #include "common/visualize.h"
40 //#define DEBUG_MB_TYPE
42 #define bs_write_ue bs_write_ue_big
44 static int 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 /****************************************************************************
50 ******************************* x264 libs **********************************
52 ****************************************************************************/
53 static double x264_psnr( double sqe, double size )
55 double mse = sqe / (PIXEL_MAX*PIXEL_MAX * size);
56 if( mse <= 0.0000000001 ) /* Max 100dB */
59 return -10.0 * log10( mse );
62 static double x264_ssim( double ssim )
64 return -10.0 * log10( 1 - ssim );
67 static void x264_frame_dump( x264_t *h )
69 FILE *f = fopen( h->param.psz_dump_yuv, "r+b" );
73 /* Write the frame in display order */
74 int frame_size = FRAME_SIZE( h->param.i_height * h->param.i_width * sizeof(pixel) );
75 fseek( f, (uint64_t)h->fdec->i_frame * frame_size, SEEK_SET );
76 for( int p = 0; p < (CHROMA444 ? 3 : 1); p++ )
77 for( int y = 0; y < h->param.i_height; y++ )
78 fwrite( &h->fdec->plane[p][y*h->fdec->i_stride[p]], sizeof(pixel), h->param.i_width, f );
81 int cw = h->param.i_width>>1;
82 int ch = h->param.i_height>>h->mb.chroma_v_shift;
83 pixel *planeu = x264_malloc( (cw*ch*2+32)*sizeof(pixel) );
84 pixel *planev = planeu + cw*ch + 16;
85 h->mc.plane_copy_deinterleave( planeu, cw, planev, cw, h->fdec->plane[1], h->fdec->i_stride[1], cw, ch );
86 fwrite( planeu, 1, cw*ch*sizeof(pixel), f );
87 fwrite( planev, 1, cw*ch*sizeof(pixel), f );
93 /* Fill "default" values */
94 static void x264_slice_header_init( x264_t *h, x264_slice_header_t *sh,
95 x264_sps_t *sps, x264_pps_t *pps,
96 int i_idr_pic_id, int i_frame, int i_qp )
98 x264_param_t *param = &h->param;
100 /* First we fill all fields */
105 sh->i_last_mb = h->mb.i_mb_count - 1;
106 sh->i_pps_id = pps->i_id;
108 sh->i_frame_num = i_frame;
110 sh->b_mbaff = PARAM_INTERLACED;
111 sh->b_field_pic = 0; /* no field support for now */
112 sh->b_bottom_field = 0; /* not yet used */
114 sh->i_idr_pic_id = i_idr_pic_id;
116 /* poc stuff, fixed later */
118 sh->i_delta_poc_bottom = 0;
119 sh->i_delta_poc[0] = 0;
120 sh->i_delta_poc[1] = 0;
122 sh->i_redundant_pic_cnt = 0;
124 h->mb.b_direct_auto_write = h->param.analyse.i_direct_mv_pred == X264_DIRECT_PRED_AUTO
126 && ( h->param.rc.b_stat_write || !h->param.rc.b_stat_read );
128 if( !h->mb.b_direct_auto_read && sh->i_type == SLICE_TYPE_B )
130 if( h->fref[1][0]->i_poc_l0ref0 == h->fref[0][0]->i_poc )
132 if( h->mb.b_direct_auto_write )
133 sh->b_direct_spatial_mv_pred = ( h->stat.i_direct_score[1] > h->stat.i_direct_score[0] );
135 sh->b_direct_spatial_mv_pred = ( param->analyse.i_direct_mv_pred == X264_DIRECT_PRED_SPATIAL );
139 h->mb.b_direct_auto_write = 0;
140 sh->b_direct_spatial_mv_pred = 1;
143 /* else b_direct_spatial_mv_pred was read from the 2pass statsfile */
145 sh->b_num_ref_idx_override = 0;
146 sh->i_num_ref_idx_l0_active = 1;
147 sh->i_num_ref_idx_l1_active = 1;
149 sh->b_ref_pic_list_reordering[0] = h->b_ref_reorder[0];
150 sh->b_ref_pic_list_reordering[1] = h->b_ref_reorder[1];
152 /* If the ref list isn't in the default order, construct reordering header */
153 for( int list = 0; list < 2; list++ )
155 if( sh->b_ref_pic_list_reordering[list] )
157 int pred_frame_num = i_frame;
158 for( int i = 0; i < h->i_ref[list]; i++ )
160 int diff = h->fref[list][i]->i_frame_num - pred_frame_num;
161 sh->ref_pic_list_order[list][i].idc = ( diff > 0 );
162 sh->ref_pic_list_order[list][i].arg = (abs(diff) - 1) & ((1 << sps->i_log2_max_frame_num) - 1);
163 pred_frame_num = h->fref[list][i]->i_frame_num;
168 sh->i_cabac_init_idc = param->i_cabac_init_idc;
170 sh->i_qp = SPEC_QP(i_qp);
171 sh->i_qp_delta = sh->i_qp - pps->i_pic_init_qp;
172 sh->b_sp_for_swidth = 0;
175 int deblock_thresh = i_qp + 2 * X264_MIN(param->i_deblocking_filter_alphac0, param->i_deblocking_filter_beta);
176 /* If effective qp <= 15, deblocking would have no effect anyway */
177 if( param->b_deblocking_filter && (h->mb.b_variable_qp || 15 < deblock_thresh ) )
178 sh->i_disable_deblocking_filter_idc = param->b_sliced_threads ? 2 : 0;
180 sh->i_disable_deblocking_filter_idc = 1;
181 sh->i_alpha_c0_offset = param->i_deblocking_filter_alphac0 << 1;
182 sh->i_beta_offset = param->i_deblocking_filter_beta << 1;
185 static void x264_slice_header_write( bs_t *s, x264_slice_header_t *sh, int i_nal_ref_idc )
189 int first_x = sh->i_first_mb % sh->sps->i_mb_width;
190 int first_y = sh->i_first_mb / sh->sps->i_mb_width;
191 assert( (first_y&1) == 0 );
192 bs_write_ue( s, (2*first_x + sh->sps->i_mb_width*(first_y&~1) + (first_y&1)) >> 1 );
195 bs_write_ue( s, sh->i_first_mb );
197 bs_write_ue( s, sh->i_type + 5 ); /* same type things */
198 bs_write_ue( s, sh->i_pps_id );
199 bs_write( s, sh->sps->i_log2_max_frame_num, sh->i_frame_num & ((1<<sh->sps->i_log2_max_frame_num)-1) );
201 if( !sh->sps->b_frame_mbs_only )
203 bs_write1( s, sh->b_field_pic );
204 if( sh->b_field_pic )
205 bs_write1( s, sh->b_bottom_field );
208 if( sh->i_idr_pic_id >= 0 ) /* NAL IDR */
209 bs_write_ue( s, sh->i_idr_pic_id );
211 if( sh->sps->i_poc_type == 0 )
213 bs_write( s, sh->sps->i_log2_max_poc_lsb, sh->i_poc & ((1<<sh->sps->i_log2_max_poc_lsb)-1) );
214 if( sh->pps->b_pic_order && !sh->b_field_pic )
215 bs_write_se( s, sh->i_delta_poc_bottom );
218 if( sh->pps->b_redundant_pic_cnt )
219 bs_write_ue( s, sh->i_redundant_pic_cnt );
221 if( sh->i_type == SLICE_TYPE_B )
222 bs_write1( s, sh->b_direct_spatial_mv_pred );
224 if( sh->i_type == SLICE_TYPE_P || sh->i_type == SLICE_TYPE_B )
226 bs_write1( s, sh->b_num_ref_idx_override );
227 if( sh->b_num_ref_idx_override )
229 bs_write_ue( s, sh->i_num_ref_idx_l0_active - 1 );
230 if( sh->i_type == SLICE_TYPE_B )
231 bs_write_ue( s, sh->i_num_ref_idx_l1_active - 1 );
235 /* ref pic list reordering */
236 if( sh->i_type != SLICE_TYPE_I )
238 bs_write1( s, sh->b_ref_pic_list_reordering[0] );
239 if( sh->b_ref_pic_list_reordering[0] )
241 for( int i = 0; i < sh->i_num_ref_idx_l0_active; i++ )
243 bs_write_ue( s, sh->ref_pic_list_order[0][i].idc );
244 bs_write_ue( s, sh->ref_pic_list_order[0][i].arg );
249 if( sh->i_type == SLICE_TYPE_B )
251 bs_write1( s, sh->b_ref_pic_list_reordering[1] );
252 if( sh->b_ref_pic_list_reordering[1] )
254 for( int i = 0; i < sh->i_num_ref_idx_l1_active; i++ )
256 bs_write_ue( s, sh->ref_pic_list_order[1][i].idc );
257 bs_write_ue( s, sh->ref_pic_list_order[1][i].arg );
263 if( sh->pps->b_weighted_pred && sh->i_type == SLICE_TYPE_P )
265 /* pred_weight_table() */
266 bs_write_ue( s, sh->weight[0][0].i_denom );
267 bs_write_ue( s, sh->weight[0][1].i_denom );
268 for( int i = 0; i < sh->i_num_ref_idx_l0_active; i++ )
270 int luma_weight_l0_flag = !!sh->weight[i][0].weightfn;
271 int chroma_weight_l0_flag = !!sh->weight[i][1].weightfn || !!sh->weight[i][2].weightfn;
272 bs_write1( s, luma_weight_l0_flag );
273 if( luma_weight_l0_flag )
275 bs_write_se( s, sh->weight[i][0].i_scale );
276 bs_write_se( s, sh->weight[i][0].i_offset );
278 bs_write1( s, chroma_weight_l0_flag );
279 if( chroma_weight_l0_flag )
281 for( int j = 1; j < 3; j++ )
283 bs_write_se( s, sh->weight[i][j].i_scale );
284 bs_write_se( s, sh->weight[i][j].i_offset );
289 else if( sh->pps->b_weighted_bipred == 1 && sh->i_type == SLICE_TYPE_B )
294 if( i_nal_ref_idc != 0 )
296 if( sh->i_idr_pic_id >= 0 )
298 bs_write1( s, 0 ); /* no output of prior pics flag */
299 bs_write1( s, 0 ); /* long term reference flag */
303 bs_write1( s, sh->i_mmco_command_count > 0 ); /* adaptive_ref_pic_marking_mode_flag */
304 if( sh->i_mmco_command_count > 0 )
306 for( int i = 0; i < sh->i_mmco_command_count; i++ )
308 bs_write_ue( s, 1 ); /* mark short term ref as unused */
309 bs_write_ue( s, sh->mmco[i].i_difference_of_pic_nums - 1 );
311 bs_write_ue( s, 0 ); /* end command list */
316 if( sh->pps->b_cabac && sh->i_type != SLICE_TYPE_I )
317 bs_write_ue( s, sh->i_cabac_init_idc );
319 bs_write_se( s, sh->i_qp_delta ); /* slice qp delta */
321 if( sh->pps->b_deblocking_filter_control )
323 bs_write_ue( s, sh->i_disable_deblocking_filter_idc );
324 if( sh->i_disable_deblocking_filter_idc != 1 )
326 bs_write_se( s, sh->i_alpha_c0_offset >> 1 );
327 bs_write_se( s, sh->i_beta_offset >> 1 );
332 /* If we are within a reasonable distance of the end of the memory allocated for the bitstream, */
333 /* reallocate, adding an arbitrary amount of space (100 kilobytes). */
334 static int x264_bitstream_check_buffer( x264_t *h )
336 uint8_t *bs_bak = h->out.p_bitstream;
337 int max_mb_size = 2500 << SLICE_MBAFF;
338 if( (h->param.b_cabac && (h->cabac.p_end - h->cabac.p < max_mb_size)) ||
339 (h->out.bs.p_end - h->out.bs.p < max_mb_size) )
341 h->out.i_bitstream += 100000;
342 CHECKED_MALLOC( h->out.p_bitstream, h->out.i_bitstream );
343 h->mc.memcpy_aligned( h->out.p_bitstream, bs_bak, (h->out.i_bitstream - 100000) & ~15 );
344 intptr_t delta = h->out.p_bitstream - bs_bak;
346 h->out.bs.p_start += delta;
347 h->out.bs.p += delta;
348 h->out.bs.p_end = h->out.p_bitstream + h->out.i_bitstream;
350 h->cabac.p_start += delta;
352 h->cabac.p_end = h->out.p_bitstream + h->out.i_bitstream;
354 for( int i = 0; i <= h->out.i_nal; i++ )
355 h->out.nal[i].p_payload += delta;
365 static void x264_encoder_thread_init( x264_t *h )
367 if( h->param.i_sync_lookahead )
368 x264_lower_thread_priority( 10 );
371 /* Misalign mask has to be set separately for each thread. */
372 if( h->param.cpu&X264_CPU_SSE_MISALIGN )
373 x264_cpu_mask_misalign_sse();
378 /****************************************************************************
380 ****************************************************************************
381 ****************************** External API*********************************
382 ****************************************************************************
384 ****************************************************************************/
386 static int x264_validate_parameters( x264_t *h, int b_open )
390 if( b_open && !(x264_cpu_detect() & X264_CPU_SSE) )
392 x264_log( h, X264_LOG_ERROR, "your cpu does not support SSE1, but x264 was compiled with asm support\n");
394 if( b_open && !(x264_cpu_detect() & X264_CPU_MMX2) )
396 x264_log( h, X264_LOG_ERROR, "your cpu does not support MMXEXT, but x264 was compiled with asm support\n");
398 x264_log( h, X264_LOG_ERROR, "to run x264, recompile without asm support (configure --disable-asm)\n");
404 h->param.b_interlaced = !!PARAM_INTERLACED;
406 if( h->param.b_interlaced )
408 x264_log( h, X264_LOG_ERROR, "not compiled with interlaced support\n" );
413 if( h->param.i_width <= 0 || h->param.i_height <= 0 )
415 x264_log( h, X264_LOG_ERROR, "invalid width x height (%dx%d)\n",
416 h->param.i_width, h->param.i_height );
420 int i_csp = h->param.i_csp & X264_CSP_MASK;
421 if( i_csp <= X264_CSP_NONE || i_csp >= X264_CSP_MAX )
423 x264_log( h, X264_LOG_ERROR, "invalid CSP (only I420/YV12/NV12/I422/YV16/NV16/I444/YV24/BGR/BGRA/RGB supported)\n" );
427 if( i_csp < X264_CSP_I444 && h->param.i_width % 2 )
429 x264_log( h, X264_LOG_ERROR, "width not divisible by 2 (%dx%d)\n",
430 h->param.i_width, h->param.i_height );
434 if( i_csp < X264_CSP_I422 && PARAM_INTERLACED && h->param.i_height % 4 )
436 x264_log( h, X264_LOG_ERROR, "height not divisible by 4 (%dx%d)\n",
437 h->param.i_width, h->param.i_height );
441 if( (i_csp < X264_CSP_I422 || PARAM_INTERLACED) && h->param.i_height % 2 )
443 x264_log( h, X264_LOG_ERROR, "height not divisible by 2 (%dx%d)\n",
444 h->param.i_width, h->param.i_height );
448 if( (h->param.crop_rect.i_left + h->param.crop_rect.i_right ) >= h->param.i_width ||
449 (h->param.crop_rect.i_top + h->param.crop_rect.i_bottom) >= h->param.i_height )
451 x264_log( h, X264_LOG_ERROR, "invalid crop-rect %u,%u,%u,%u\n", h->param.crop_rect.i_left,
452 h->param.crop_rect.i_top, h->param.crop_rect.i_right, h->param.crop_rect.i_bottom );
456 if( h->param.i_threads == X264_THREADS_AUTO )
457 h->param.i_threads = x264_cpu_num_processors() * (h->param.b_sliced_threads?2:3)/2;
458 h->param.i_threads = x264_clip3( h->param.i_threads, 1, X264_THREAD_MAX );
459 if( h->param.i_threads > 1 )
462 x264_log( h, X264_LOG_WARNING, "not compiled with thread support!\n");
463 h->param.i_threads = 1;
465 /* Avoid absurdly small thread slices as they can reduce performance
466 * and VBV compliance. Capped at an arbitrary 4 rows per thread. */
467 if( h->param.b_sliced_threads )
469 int max_threads = (h->param.i_height+15)/16 / 4;
470 h->param.i_threads = X264_MIN( h->param.i_threads, max_threads );
474 h->param.b_sliced_threads = 0;
475 h->i_thread_frames = h->param.b_sliced_threads ? 1 : h->param.i_threads;
476 if( h->i_thread_frames > 1 )
477 h->param.nalu_process = NULL;
479 h->param.i_keyint_max = x264_clip3( h->param.i_keyint_max, 1, X264_KEYINT_MAX_INFINITE );
480 if( h->param.i_keyint_max == 1 )
482 h->param.b_intra_refresh = 0;
483 h->param.analyse.i_weighted_pred = 0;
486 h->param.i_frame_packing = x264_clip3( h->param.i_frame_packing, -1, 5 );
488 /* Detect default ffmpeg settings and terminate with an error. */
492 score += h->param.analyse.i_me_range == 0;
493 score += h->param.rc.i_qp_step == 3;
494 score += h->param.i_keyint_max == 12;
495 score += h->param.rc.i_qp_min == 2;
496 score += h->param.rc.i_qp_max == 31;
497 score += h->param.rc.f_qcompress == 0.5;
498 score += fabs(h->param.rc.f_ip_factor - 1.25) < 0.01;
499 score += fabs(h->param.rc.f_pb_factor - 1.25) < 0.01;
500 score += h->param.analyse.inter == 0 && h->param.analyse.i_subpel_refine == 8;
503 x264_log( h, X264_LOG_ERROR, "broken ffmpeg default settings detected\n" );
504 x264_log( h, X264_LOG_ERROR, "use an encoding preset (e.g. -vpre medium)\n" );
505 x264_log( h, X264_LOG_ERROR, "preset usage: -vpre <speed> -vpre <profile>\n" );
506 x264_log( h, X264_LOG_ERROR, "speed presets are listed in x264 --help\n" );
507 x264_log( h, X264_LOG_ERROR, "profile is optional; x264 defaults to high\n" );
512 if( h->param.rc.i_rc_method < 0 || h->param.rc.i_rc_method > 2 )
514 x264_log( h, X264_LOG_ERROR, "no ratecontrol method specified\n" );
517 h->param.rc.f_rf_constant = x264_clip3f( h->param.rc.f_rf_constant, -QP_BD_OFFSET, 51 );
518 h->param.rc.f_rf_constant_max = x264_clip3f( h->param.rc.f_rf_constant_max, -QP_BD_OFFSET, 51 );
519 h->param.rc.i_qp_constant = x264_clip3( h->param.rc.i_qp_constant, 0, QP_MAX );
520 h->param.analyse.i_subpel_refine = x264_clip3( h->param.analyse.i_subpel_refine, 0, 11 );
521 h->param.rc.f_ip_factor = X264_MAX( h->param.rc.f_ip_factor, 0.01f );
522 h->param.rc.f_pb_factor = X264_MAX( h->param.rc.f_pb_factor, 0.01f );
523 if( h->param.rc.i_rc_method == X264_RC_CRF )
525 h->param.rc.i_qp_constant = h->param.rc.f_rf_constant + QP_BD_OFFSET;
526 h->param.rc.i_bitrate = 0;
528 if( (h->param.rc.i_rc_method == X264_RC_CQP || h->param.rc.i_rc_method == X264_RC_CRF)
529 && h->param.rc.i_qp_constant == 0 )
531 h->mb.b_lossless = 1;
532 h->param.i_cqm_preset = X264_CQM_FLAT;
533 h->param.psz_cqm_file = NULL;
534 h->param.rc.i_rc_method = X264_RC_CQP;
535 h->param.rc.f_ip_factor = 1;
536 h->param.rc.f_pb_factor = 1;
537 h->param.analyse.b_psnr = 0;
538 h->param.analyse.b_ssim = 0;
539 h->param.analyse.i_chroma_qp_offset = 0;
540 h->param.analyse.i_trellis = 0;
541 h->param.analyse.b_fast_pskip = 0;
542 h->param.analyse.i_noise_reduction = 0;
543 h->param.analyse.b_psy = 0;
544 h->param.i_bframe = 0;
545 /* 8x8dct is not useful without RD in CAVLC lossless */
546 if( !h->param.b_cabac && h->param.analyse.i_subpel_refine < 6 )
547 h->param.analyse.b_transform_8x8 = 0;
549 if( h->param.rc.i_rc_method == X264_RC_CQP )
551 float qp_p = h->param.rc.i_qp_constant;
552 float qp_i = qp_p - 6*log2f( h->param.rc.f_ip_factor );
553 float qp_b = qp_p + 6*log2f( h->param.rc.f_pb_factor );
554 h->param.rc.i_qp_min = x264_clip3( (int)(X264_MIN3( qp_p, qp_i, qp_b )), 0, QP_MAX );
555 h->param.rc.i_qp_max = x264_clip3( (int)(X264_MAX3( qp_p, qp_i, qp_b ) + .999), 0, QP_MAX );
556 h->param.rc.i_aq_mode = 0;
557 h->param.rc.b_mb_tree = 0;
558 h->param.rc.i_bitrate = 0;
560 h->param.rc.i_qp_max = x264_clip3( h->param.rc.i_qp_max, 0, QP_MAX );
561 h->param.rc.i_qp_min = x264_clip3( h->param.rc.i_qp_min, 0, h->param.rc.i_qp_max );
562 h->param.rc.i_qp_step = x264_clip3( h->param.rc.i_qp_step, 0, QP_MAX );
563 h->param.rc.i_bitrate = x264_clip3( h->param.rc.i_bitrate, 0, 2000000 );
564 h->param.rc.i_vbv_buffer_size = x264_clip3( h->param.rc.i_vbv_buffer_size, 0, 2000000 );
565 h->param.rc.i_vbv_max_bitrate = x264_clip3( h->param.rc.i_vbv_max_bitrate, 0, 2000000 );
566 h->param.rc.f_vbv_buffer_init = x264_clip3f( h->param.rc.f_vbv_buffer_init, 0, 2000000 );
567 if( h->param.rc.i_vbv_buffer_size )
569 if( h->param.rc.i_rc_method == X264_RC_CQP )
571 x264_log( h, X264_LOG_WARNING, "VBV is incompatible with constant QP, ignored.\n" );
572 h->param.rc.i_vbv_max_bitrate = 0;
573 h->param.rc.i_vbv_buffer_size = 0;
575 else if( h->param.rc.i_vbv_max_bitrate == 0 )
577 if( h->param.rc.i_rc_method == X264_RC_ABR )
579 x264_log( h, X264_LOG_WARNING, "VBV maxrate unspecified, assuming CBR\n" );
580 h->param.rc.i_vbv_max_bitrate = h->param.rc.i_bitrate;
584 x264_log( h, X264_LOG_WARNING, "VBV bufsize set but maxrate unspecified, ignored\n" );
585 h->param.rc.i_vbv_buffer_size = 0;
588 else if( h->param.rc.i_vbv_max_bitrate < h->param.rc.i_bitrate &&
589 h->param.rc.i_rc_method == X264_RC_ABR )
591 x264_log( h, X264_LOG_WARNING, "max bitrate less than average bitrate, assuming CBR\n" );
592 h->param.rc.i_vbv_max_bitrate = h->param.rc.i_bitrate;
595 else if( h->param.rc.i_vbv_max_bitrate )
597 x264_log( h, X264_LOG_WARNING, "VBV maxrate specified, but no bufsize, ignored\n" );
598 h->param.rc.i_vbv_max_bitrate = 0;
601 h->param.i_slice_max_size = X264_MAX( h->param.i_slice_max_size, 0 );
602 h->param.i_slice_max_mbs = X264_MAX( h->param.i_slice_max_mbs, 0 );
604 int max_slices = (h->param.i_height+((16<<PARAM_INTERLACED)-1))/(16<<PARAM_INTERLACED);
605 if( h->param.b_sliced_threads )
606 h->param.i_slice_count = x264_clip3( h->param.i_threads, 0, max_slices );
609 h->param.i_slice_count = x264_clip3( h->param.i_slice_count, 0, max_slices );
610 if( h->param.i_slice_max_mbs || h->param.i_slice_max_size )
611 h->param.i_slice_count = 0;
614 if( h->param.b_bluray_compat )
616 h->param.i_bframe_pyramid = X264_MIN( X264_B_PYRAMID_STRICT, h->param.i_bframe_pyramid );
617 h->param.i_bframe = X264_MIN( h->param.i_bframe, 3 );
619 h->param.i_nal_hrd = X264_MAX( h->param.i_nal_hrd, X264_NAL_HRD_VBR );
620 h->param.i_slice_max_size = 0;
621 h->param.i_slice_max_mbs = 0;
622 h->param.b_intra_refresh = 0;
623 h->param.i_frame_reference = X264_MIN( h->param.i_frame_reference, 6 );
624 h->param.i_dpb_size = X264_MIN( h->param.i_dpb_size, 6 );
625 /* Due to the proliferation of broken players that don't handle dupes properly. */
626 h->param.analyse.i_weighted_pred = X264_MIN( h->param.analyse.i_weighted_pred, X264_WEIGHTP_SIMPLE );
627 if( h->param.b_fake_interlaced )
628 h->param.b_pic_struct = 1;
631 h->param.i_frame_reference = x264_clip3( h->param.i_frame_reference, 1, X264_REF_MAX );
632 h->param.i_dpb_size = x264_clip3( h->param.i_dpb_size, 1, X264_REF_MAX );
633 if( h->param.i_scenecut_threshold < 0 )
634 h->param.i_scenecut_threshold = 0;
635 h->param.analyse.i_direct_mv_pred = x264_clip3( h->param.analyse.i_direct_mv_pred, X264_DIRECT_PRED_NONE, X264_DIRECT_PRED_AUTO );
636 if( !h->param.analyse.i_subpel_refine && h->param.analyse.i_direct_mv_pred > X264_DIRECT_PRED_SPATIAL )
638 x264_log( h, X264_LOG_WARNING, "subme=0 + direct=temporal is not supported\n" );
639 h->param.analyse.i_direct_mv_pred = X264_DIRECT_PRED_SPATIAL;
641 h->param.i_bframe = x264_clip3( h->param.i_bframe, 0, X264_MIN( X264_BFRAME_MAX, h->param.i_keyint_max-1 ) );
642 h->param.i_bframe_bias = x264_clip3( h->param.i_bframe_bias, -90, 100 );
643 if( h->param.i_bframe <= 1 )
644 h->param.i_bframe_pyramid = X264_B_PYRAMID_NONE;
645 h->param.i_bframe_pyramid = x264_clip3( h->param.i_bframe_pyramid, X264_B_PYRAMID_NONE, X264_B_PYRAMID_NORMAL );
646 h->param.i_bframe_adaptive = x264_clip3( h->param.i_bframe_adaptive, X264_B_ADAPT_NONE, X264_B_ADAPT_TRELLIS );
647 if( !h->param.i_bframe )
649 h->param.i_bframe_adaptive = X264_B_ADAPT_NONE;
650 h->param.analyse.i_direct_mv_pred = 0;
651 h->param.analyse.b_weighted_bipred = 0;
652 h->param.b_open_gop = 0;
654 if( h->param.b_intra_refresh && h->param.i_bframe_pyramid == X264_B_PYRAMID_NORMAL )
656 x264_log( h, X264_LOG_WARNING, "b-pyramid normal + intra-refresh is not supported\n" );
657 h->param.i_bframe_pyramid = X264_B_PYRAMID_STRICT;
659 if( h->param.b_intra_refresh && (h->param.i_frame_reference > 1 || h->param.i_dpb_size > 1) )
661 x264_log( h, X264_LOG_WARNING, "ref > 1 + intra-refresh is not supported\n" );
662 h->param.i_frame_reference = 1;
663 h->param.i_dpb_size = 1;
665 if( h->param.b_intra_refresh && h->param.b_open_gop )
667 x264_log( h, X264_LOG_WARNING, "intra-refresh is not compatible with open-gop\n" );
668 h->param.b_open_gop = 0;
670 float fps = h->param.i_fps_num > 0 && h->param.i_fps_den > 0 ? (float) h->param.i_fps_num / h->param.i_fps_den : 25.0;
671 if( h->param.i_keyint_min == X264_KEYINT_MIN_AUTO )
672 h->param.i_keyint_min = X264_MIN( h->param.i_keyint_max / 10, fps );
673 h->param.i_keyint_min = x264_clip3( h->param.i_keyint_min, 1, h->param.i_keyint_max/2+1 );
674 h->param.rc.i_lookahead = x264_clip3( h->param.rc.i_lookahead, 0, X264_LOOKAHEAD_MAX );
676 int maxrate = X264_MAX( h->param.rc.i_vbv_max_bitrate, h->param.rc.i_bitrate );
677 float bufsize = maxrate ? (float)h->param.rc.i_vbv_buffer_size / maxrate : 0;
678 h->param.rc.i_lookahead = X264_MIN( h->param.rc.i_lookahead, X264_MAX( h->param.i_keyint_max, bufsize*fps ) );
681 if( !h->param.i_timebase_num || !h->param.i_timebase_den || !(h->param.b_vfr_input || h->param.b_pulldown) )
683 h->param.i_timebase_num = h->param.i_fps_den;
684 h->param.i_timebase_den = h->param.i_fps_num;
687 h->param.rc.f_qcompress = x264_clip3f( h->param.rc.f_qcompress, 0.0, 1.0 );
688 if( h->param.i_keyint_max == 1 || h->param.rc.f_qcompress == 1 )
689 h->param.rc.b_mb_tree = 0;
690 if( (!h->param.b_intra_refresh && h->param.i_keyint_max != X264_KEYINT_MAX_INFINITE) &&
691 !h->param.rc.i_lookahead && h->param.rc.b_mb_tree )
693 x264_log( h, X264_LOG_WARNING, "lookaheadless mb-tree requires intra refresh or infinite keyint\n" );
694 h->param.rc.b_mb_tree = 0;
696 if( h->param.rc.b_stat_read )
697 h->param.rc.i_lookahead = 0;
699 if( h->param.i_sync_lookahead < 0 )
700 h->param.i_sync_lookahead = h->param.i_bframe + 1;
701 h->param.i_sync_lookahead = X264_MIN( h->param.i_sync_lookahead, X264_LOOKAHEAD_MAX );
702 if( h->param.rc.b_stat_read || h->i_thread_frames == 1 )
703 h->param.i_sync_lookahead = 0;
705 h->param.i_sync_lookahead = 0;
708 h->param.i_deblocking_filter_alphac0 = x264_clip3( h->param.i_deblocking_filter_alphac0, -6, 6 );
709 h->param.i_deblocking_filter_beta = x264_clip3( h->param.i_deblocking_filter_beta, -6, 6 );
710 h->param.analyse.i_luma_deadzone[0] = x264_clip3( h->param.analyse.i_luma_deadzone[0], 0, 32 );
711 h->param.analyse.i_luma_deadzone[1] = x264_clip3( h->param.analyse.i_luma_deadzone[1], 0, 32 );
713 h->param.i_cabac_init_idc = x264_clip3( h->param.i_cabac_init_idc, 0, 2 );
715 if( h->param.i_cqm_preset < X264_CQM_FLAT || h->param.i_cqm_preset > X264_CQM_CUSTOM )
716 h->param.i_cqm_preset = X264_CQM_FLAT;
718 if( h->param.analyse.i_me_method < X264_ME_DIA ||
719 h->param.analyse.i_me_method > X264_ME_TESA )
720 h->param.analyse.i_me_method = X264_ME_HEX;
721 h->param.analyse.i_me_range = x264_clip3( h->param.analyse.i_me_range, 4, 1024 );
722 if( h->param.analyse.i_me_range > 16 && h->param.analyse.i_me_method <= X264_ME_HEX )
723 h->param.analyse.i_me_range = 16;
724 if( h->param.analyse.i_me_method == X264_ME_TESA &&
725 (h->mb.b_lossless || h->param.analyse.i_subpel_refine <= 1) )
726 h->param.analyse.i_me_method = X264_ME_ESA;
727 h->param.analyse.b_mixed_references = h->param.analyse.b_mixed_references && h->param.i_frame_reference > 1;
728 h->param.analyse.inter &= X264_ANALYSE_PSUB16x16|X264_ANALYSE_PSUB8x8|X264_ANALYSE_BSUB16x16|
729 X264_ANALYSE_I4x4|X264_ANALYSE_I8x8;
730 h->param.analyse.intra &= X264_ANALYSE_I4x4|X264_ANALYSE_I8x8;
731 if( !(h->param.analyse.inter & X264_ANALYSE_PSUB16x16) )
732 h->param.analyse.inter &= ~X264_ANALYSE_PSUB8x8;
733 if( !h->param.analyse.b_transform_8x8 )
735 h->param.analyse.inter &= ~X264_ANALYSE_I8x8;
736 h->param.analyse.intra &= ~X264_ANALYSE_I8x8;
738 h->param.analyse.i_trellis = x264_clip3( h->param.analyse.i_trellis, 0, 2 );
739 h->param.rc.i_aq_mode = x264_clip3( h->param.rc.i_aq_mode, 0, 2 );
740 h->param.rc.f_aq_strength = x264_clip3f( h->param.rc.f_aq_strength, 0, 3 );
741 if( h->param.rc.f_aq_strength == 0 )
742 h->param.rc.i_aq_mode = 0;
744 if( h->param.i_log_level < X264_LOG_INFO )
746 h->param.analyse.b_psnr = 0;
747 h->param.analyse.b_ssim = 0;
749 /* Warn users trying to measure PSNR/SSIM with psy opts on. */
750 if( b_open && (h->param.analyse.b_psnr || h->param.analyse.b_ssim) )
754 if( h->param.analyse.b_psy )
756 s = h->param.analyse.b_psnr ? "psnr" : "ssim";
757 x264_log( h, X264_LOG_WARNING, "--%s used with psy on: results will be invalid!\n", s );
759 else if( !h->param.rc.i_aq_mode && h->param.analyse.b_ssim )
761 x264_log( h, X264_LOG_WARNING, "--ssim used with AQ off: results will be invalid!\n" );
764 else if( h->param.rc.i_aq_mode && h->param.analyse.b_psnr )
766 x264_log( h, X264_LOG_WARNING, "--psnr used with AQ on: results will be invalid!\n" );
770 x264_log( h, X264_LOG_WARNING, "--tune %s should be used if attempting to benchmark %s!\n", s, s );
773 if( !h->param.analyse.b_psy )
775 h->param.analyse.f_psy_rd = 0;
776 h->param.analyse.f_psy_trellis = 0;
778 h->param.analyse.f_psy_rd = x264_clip3f( h->param.analyse.f_psy_rd, 0, 10 );
779 h->param.analyse.f_psy_trellis = x264_clip3f( h->param.analyse.f_psy_trellis, 0, 10 );
780 h->mb.i_psy_rd = h->param.analyse.i_subpel_refine >= 6 ? FIX8( h->param.analyse.f_psy_rd ) : 0;
781 h->mb.i_psy_trellis = h->param.analyse.i_trellis ? FIX8( h->param.analyse.f_psy_trellis / 4 ) : 0;
782 h->param.analyse.i_chroma_qp_offset = x264_clip3(h->param.analyse.i_chroma_qp_offset, -32, 32);
783 /* In 4:4:4 mode, chroma gets twice as much resolution, so we can halve its quality. */
784 if( b_open && i_csp >= X264_CSP_I444 && i_csp < X264_CSP_BGR && h->param.analyse.b_psy )
785 h->param.analyse.i_chroma_qp_offset += 6;
786 /* Psy RDO increases overall quantizers to improve the quality of luma--this indirectly hurts chroma quality */
787 /* so we lower the chroma QP offset to compensate */
788 if( b_open && h->mb.i_psy_rd )
789 h->param.analyse.i_chroma_qp_offset -= h->param.analyse.f_psy_rd < 0.25 ? 1 : 2;
790 /* Psy trellis has a similar effect. */
791 if( b_open && h->mb.i_psy_trellis )
792 h->param.analyse.i_chroma_qp_offset -= h->param.analyse.f_psy_trellis < 0.25 ? 1 : 2;
793 h->param.analyse.i_chroma_qp_offset = x264_clip3(h->param.analyse.i_chroma_qp_offset, -12, 12);
794 /* MB-tree requires AQ to be on, even if the strength is zero. */
795 if( !h->param.rc.i_aq_mode && h->param.rc.b_mb_tree )
797 h->param.rc.i_aq_mode = 1;
798 h->param.rc.f_aq_strength = 0;
800 h->param.analyse.i_noise_reduction = x264_clip3( h->param.analyse.i_noise_reduction, 0, 1<<16 );
801 if( h->param.analyse.i_subpel_refine >= 10 && (h->param.analyse.i_trellis != 2 || !h->param.rc.i_aq_mode) )
802 h->param.analyse.i_subpel_refine = 9;
805 const x264_level_t *l = x264_levels;
806 if( h->param.i_level_idc < 0 )
808 int maxrate_bak = h->param.rc.i_vbv_max_bitrate;
809 if( h->param.rc.i_rc_method == X264_RC_ABR && h->param.rc.i_vbv_buffer_size <= 0 )
810 h->param.rc.i_vbv_max_bitrate = h->param.rc.i_bitrate * 2;
811 x264_sps_init( h->sps, h->param.i_sps_id, &h->param );
812 do h->param.i_level_idc = l->level_idc;
813 while( l[1].level_idc && x264_validate_levels( h, 0 ) && l++ );
814 h->param.rc.i_vbv_max_bitrate = maxrate_bak;
818 while( l->level_idc && l->level_idc != h->param.i_level_idc )
820 if( l->level_idc == 0 )
822 x264_log( h, X264_LOG_ERROR, "invalid level_idc: %d\n", h->param.i_level_idc );
826 if( h->param.analyse.i_mv_range <= 0 )
827 h->param.analyse.i_mv_range = l->mv_range >> PARAM_INTERLACED;
829 h->param.analyse.i_mv_range = x264_clip3(h->param.analyse.i_mv_range, 32, 512 >> PARAM_INTERLACED);
832 h->param.analyse.i_weighted_pred = x264_clip3( h->param.analyse.i_weighted_pred, X264_WEIGHTP_NONE, X264_WEIGHTP_SMART );
834 if( PARAM_INTERLACED )
836 if( h->param.analyse.i_me_method >= X264_ME_ESA )
838 x264_log( h, X264_LOG_WARNING, "interlace + me=esa is not implemented\n" );
839 h->param.analyse.i_me_method = X264_ME_UMH;
841 if( h->param.analyse.i_weighted_pred > 0 )
843 x264_log( h, X264_LOG_WARNING, "interlace + weightp is not implemented\n" );
844 h->param.analyse.i_weighted_pred = X264_WEIGHTP_NONE;
848 if( !h->param.analyse.i_weighted_pred && h->param.rc.b_mb_tree && h->param.analyse.b_psy )
849 h->param.analyse.i_weighted_pred = X264_WEIGHTP_FAKE;
851 if( h->i_thread_frames > 1 )
853 int r = h->param.analyse.i_mv_range_thread;
857 // half of the available space is reserved and divided evenly among the threads,
858 // the rest is allocated to whichever thread is far enough ahead to use it.
859 // reserving more space increases quality for some videos, but costs more time
860 // in thread synchronization.
861 int max_range = (h->param.i_height + X264_THREAD_HEIGHT) / h->i_thread_frames - X264_THREAD_HEIGHT;
864 r = X264_MAX( r, h->param.analyse.i_me_range );
865 r = X264_MIN( r, h->param.analyse.i_mv_range );
866 // round up to use the whole mb row
867 r2 = (r & ~15) + ((-X264_THREAD_HEIGHT) & 15);
870 x264_log( h, X264_LOG_DEBUG, "using mv_range_thread = %d\n", r2 );
871 h->param.analyse.i_mv_range_thread = r2;
874 if( h->param.rc.f_rate_tolerance < 0 )
875 h->param.rc.f_rate_tolerance = 0;
876 if( h->param.rc.f_qblur < 0 )
877 h->param.rc.f_qblur = 0;
878 if( h->param.rc.f_complexity_blur < 0 )
879 h->param.rc.f_complexity_blur = 0;
881 h->param.i_sps_id &= 31;
883 if( PARAM_INTERLACED )
884 h->param.b_pic_struct = 1;
886 h->param.i_nal_hrd = x264_clip3( h->param.i_nal_hrd, X264_NAL_HRD_NONE, X264_NAL_HRD_CBR );
888 if( h->param.i_nal_hrd && !h->param.rc.i_vbv_buffer_size )
890 x264_log( h, X264_LOG_WARNING, "NAL HRD parameters require VBV parameters\n" );
891 h->param.i_nal_hrd = X264_NAL_HRD_NONE;
894 if( h->param.i_nal_hrd == X264_NAL_HRD_CBR &&
895 (h->param.rc.i_bitrate != h->param.rc.i_vbv_max_bitrate || !h->param.rc.i_vbv_max_bitrate) )
897 x264_log( h, X264_LOG_WARNING, "CBR HRD requires constant bitrate\n" );
898 h->param.i_nal_hrd = X264_NAL_HRD_VBR;
901 /* ensure the booleans are 0 or 1 so they can be used in math */
902 #define BOOLIFY(x) h->param.x = !!h->param.x
904 BOOLIFY( b_constrained_intra );
905 BOOLIFY( b_deblocking_filter );
906 BOOLIFY( b_deterministic );
907 BOOLIFY( b_sliced_threads );
908 BOOLIFY( b_interlaced );
909 BOOLIFY( b_intra_refresh );
910 BOOLIFY( b_visualize );
912 BOOLIFY( b_repeat_headers );
914 BOOLIFY( b_vfr_input );
915 BOOLIFY( b_pulldown );
917 BOOLIFY( b_pic_struct );
918 BOOLIFY( b_fake_interlaced );
919 BOOLIFY( b_open_gop );
920 BOOLIFY( b_bluray_compat );
921 BOOLIFY( analyse.b_transform_8x8 );
922 BOOLIFY( analyse.b_weighted_bipred );
923 BOOLIFY( analyse.b_chroma_me );
924 BOOLIFY( analyse.b_mixed_references );
925 BOOLIFY( analyse.b_fast_pskip );
926 BOOLIFY( analyse.b_dct_decimate );
927 BOOLIFY( analyse.b_psy );
928 BOOLIFY( analyse.b_psnr );
929 BOOLIFY( analyse.b_ssim );
930 BOOLIFY( rc.b_stat_write );
931 BOOLIFY( rc.b_stat_read );
932 BOOLIFY( rc.b_mb_tree );
938 static void mbcmp_init( x264_t *h )
940 int satd = !h->mb.b_lossless && h->param.analyse.i_subpel_refine > 1;
941 memcpy( h->pixf.mbcmp, satd ? h->pixf.satd : h->pixf.sad_aligned, sizeof(h->pixf.mbcmp) );
942 memcpy( h->pixf.mbcmp_unaligned, satd ? h->pixf.satd : h->pixf.sad, sizeof(h->pixf.mbcmp_unaligned) );
943 h->pixf.intra_mbcmp_x3_16x16 = satd ? h->pixf.intra_satd_x3_16x16 : h->pixf.intra_sad_x3_16x16;
944 h->pixf.intra_mbcmp_x3_8x16c = satd ? h->pixf.intra_satd_x3_8x16c : h->pixf.intra_sad_x3_8x16c;
945 h->pixf.intra_mbcmp_x3_8x8c = satd ? h->pixf.intra_satd_x3_8x8c : h->pixf.intra_sad_x3_8x8c;
946 h->pixf.intra_mbcmp_x3_8x8 = satd ? h->pixf.intra_sa8d_x3_8x8 : h->pixf.intra_sad_x3_8x8;
947 h->pixf.intra_mbcmp_x3_4x4 = satd ? h->pixf.intra_satd_x3_4x4 : h->pixf.intra_sad_x3_4x4;
948 h->pixf.intra_mbcmp_x9_4x4 = h->param.b_cpu_independent || h->mb.b_lossless ? NULL
949 : satd ? h->pixf.intra_satd_x9_4x4 : h->pixf.intra_sad_x9_4x4;
950 satd &= h->param.analyse.i_me_method == X264_ME_TESA;
951 memcpy( h->pixf.fpelcmp, satd ? h->pixf.satd : h->pixf.sad, sizeof(h->pixf.fpelcmp) );
952 memcpy( h->pixf.fpelcmp_x3, satd ? h->pixf.satd_x3 : h->pixf.sad_x3, sizeof(h->pixf.fpelcmp_x3) );
953 memcpy( h->pixf.fpelcmp_x4, satd ? h->pixf.satd_x4 : h->pixf.sad_x4, sizeof(h->pixf.fpelcmp_x4) );
956 static void chroma_dsp_init( x264_t *h )
958 memcpy( h->luma2chroma_pixel, x264_luma2chroma_pixel[CHROMA_FORMAT], sizeof(h->luma2chroma_pixel) );
960 switch( CHROMA_FORMAT )
963 memcpy( h->predict_chroma, h->predict_8x8c, sizeof(h->predict_chroma) );
964 h->loopf.deblock_chroma[0] = h->loopf.deblock_h_chroma_420;
965 h->loopf.deblock_chroma_intra[0] = h->loopf.deblock_h_chroma_420_intra;
966 h->loopf.deblock_chroma_mbaff = h->loopf.deblock_chroma_420_mbaff;
967 h->loopf.deblock_chroma_intra_mbaff = h->loopf.deblock_chroma_420_intra_mbaff;
968 h->pixf.intra_mbcmp_x3_chroma = h->pixf.intra_mbcmp_x3_8x8c;
969 h->quantf.coeff_last[DCT_CHROMA_DC] = h->quantf.coeff_last4;
970 h->quantf.coeff_level_run[DCT_CHROMA_DC] = h->quantf.coeff_level_run4;
973 memcpy( h->predict_chroma, h->predict_8x16c, sizeof(h->predict_chroma) );
974 h->loopf.deblock_chroma[0] = h->loopf.deblock_h_chroma_422;
975 h->loopf.deblock_chroma_intra[0] = h->loopf.deblock_h_chroma_422_intra;
976 h->loopf.deblock_chroma_mbaff = h->loopf.deblock_chroma_422_mbaff;
977 h->loopf.deblock_chroma_intra_mbaff = h->loopf.deblock_chroma_422_intra_mbaff;
978 h->pixf.intra_mbcmp_x3_chroma = h->pixf.intra_mbcmp_x3_8x16c;
979 h->quantf.coeff_last[DCT_CHROMA_DC] = h->quantf.coeff_last8;
980 h->quantf.coeff_level_run[DCT_CHROMA_DC] = h->quantf.coeff_level_run8;
983 h->loopf.deblock_chroma_mbaff = h->loopf.deblock_luma_mbaff;
984 h->loopf.deblock_chroma_intra_mbaff = h->loopf.deblock_luma_intra_mbaff;
989 static void x264_set_aspect_ratio( x264_t *h, x264_param_t *param, int initial )
992 if( param->vui.i_sar_width > 0 && param->vui.i_sar_height > 0 )
994 uint32_t i_w = param->vui.i_sar_width;
995 uint32_t i_h = param->vui.i_sar_height;
996 uint32_t old_w = h->param.vui.i_sar_width;
997 uint32_t old_h = h->param.vui.i_sar_height;
999 x264_reduce_fraction( &i_w, &i_h );
1001 while( i_w > 65535 || i_h > 65535 )
1007 x264_reduce_fraction( &i_w, &i_h );
1009 if( i_w != old_w || i_h != old_h || initial )
1011 h->param.vui.i_sar_width = 0;
1012 h->param.vui.i_sar_height = 0;
1013 if( i_w == 0 || i_h == 0 )
1014 x264_log( h, X264_LOG_WARNING, "cannot create valid sample aspect ratio\n" );
1017 x264_log( h, initial?X264_LOG_INFO:X264_LOG_DEBUG, "using SAR=%d/%d\n", i_w, i_h );
1018 h->param.vui.i_sar_width = i_w;
1019 h->param.vui.i_sar_height = i_h;
1021 x264_sps_init( h->sps, h->param.i_sps_id, &h->param );
1026 /****************************************************************************
1027 * x264_encoder_open:
1028 ****************************************************************************/
1029 x264_t *x264_encoder_open( x264_param_t *param )
1033 int qp, i_slicetype_length;
1035 CHECKED_MALLOCZERO( h, sizeof(x264_t) );
1037 /* Create a copy of param */
1038 memcpy( &h->param, param, sizeof(x264_param_t) );
1040 if( param->param_free )
1041 param->param_free( param );
1043 if( x264_threading_init() )
1045 x264_log( h, X264_LOG_ERROR, "unable to initialize threading\n" );
1049 if( x264_validate_parameters( h, 1 ) < 0 )
1052 if( h->param.psz_cqm_file )
1053 if( x264_cqm_parse_file( h, h->param.psz_cqm_file ) < 0 )
1056 if( h->param.rc.psz_stat_out )
1057 h->param.rc.psz_stat_out = strdup( h->param.rc.psz_stat_out );
1058 if( h->param.rc.psz_stat_in )
1059 h->param.rc.psz_stat_in = strdup( h->param.rc.psz_stat_in );
1061 x264_reduce_fraction( &h->param.i_fps_num, &h->param.i_fps_den );
1062 x264_reduce_fraction( &h->param.i_timebase_num, &h->param.i_timebase_den );
1067 h->i_idr_pic_id = 0;
1069 if( (uint64_t)h->param.i_timebase_den * 2 > UINT32_MAX )
1071 x264_log( h, X264_LOG_ERROR, "Effective timebase denominator %u exceeds H.264 maximum\n", h->param.i_timebase_den );
1075 x264_sps_init( h->sps, h->param.i_sps_id, &h->param );
1076 x264_pps_init( h->pps, h->param.i_sps_id, &h->param, h->sps );
1078 x264_set_aspect_ratio( h, &h->param, 1 );
1080 x264_validate_levels( h, 1 );
1082 h->chroma_qp_table = i_chroma_qp_table + 12 + h->pps->i_chroma_qp_index_offset;
1084 if( x264_cqm_init( h ) < 0 )
1087 h->mb.i_mb_width = h->sps->i_mb_width;
1088 h->mb.i_mb_height = h->sps->i_mb_height;
1089 h->mb.i_mb_count = h->mb.i_mb_width * h->mb.i_mb_height;
1091 h->mb.chroma_h_shift = CHROMA_FORMAT == CHROMA_420 || CHROMA_FORMAT == CHROMA_422;
1092 h->mb.chroma_v_shift = CHROMA_FORMAT == CHROMA_420;
1094 /* Adaptive MBAFF and subme 0 are not supported as we require halving motion
1095 * vectors during prediction, resulting in hpel mvs.
1096 * The chosen solution is to make MBAFF non-adaptive in this case. */
1097 h->mb.b_adaptive_mbaff = PARAM_INTERLACED && h->param.analyse.i_subpel_refine;
1100 if( h->param.i_bframe_adaptive == X264_B_ADAPT_TRELLIS && !h->param.rc.b_stat_read )
1101 h->frames.i_delay = X264_MAX(h->param.i_bframe,3)*4;
1103 h->frames.i_delay = h->param.i_bframe;
1104 if( h->param.rc.b_mb_tree || h->param.rc.i_vbv_buffer_size )
1105 h->frames.i_delay = X264_MAX( h->frames.i_delay, h->param.rc.i_lookahead );
1106 i_slicetype_length = h->frames.i_delay;
1107 h->frames.i_delay += h->i_thread_frames - 1;
1108 h->frames.i_delay += h->param.i_sync_lookahead;
1109 h->frames.i_delay += h->param.b_vfr_input;
1110 h->frames.i_bframe_delay = h->param.i_bframe ? (h->param.i_bframe_pyramid ? 2 : 1) : 0;
1112 h->frames.i_max_ref0 = h->param.i_frame_reference;
1113 h->frames.i_max_ref1 = X264_MIN( h->sps->vui.i_num_reorder_frames, h->param.i_frame_reference );
1114 h->frames.i_max_dpb = h->sps->vui.i_max_dec_frame_buffering;
1115 h->frames.b_have_lowres = !h->param.rc.b_stat_read
1116 && ( h->param.rc.i_rc_method == X264_RC_ABR
1117 || h->param.rc.i_rc_method == X264_RC_CRF
1118 || h->param.i_bframe_adaptive
1119 || h->param.i_scenecut_threshold
1120 || h->param.rc.b_mb_tree
1121 || h->param.analyse.i_weighted_pred );
1122 h->frames.b_have_lowres |= h->param.rc.b_stat_read && h->param.rc.i_vbv_buffer_size > 0;
1123 h->frames.b_have_sub8x8_esa = !!(h->param.analyse.inter & X264_ANALYSE_PSUB8x8);
1125 h->frames.i_last_idr =
1126 h->frames.i_last_keyframe = - h->param.i_keyint_max;
1127 h->frames.i_input = 0;
1128 h->frames.i_largest_pts = h->frames.i_second_largest_pts = -1;
1129 h->frames.i_poc_last_open_gop = -1;
1131 CHECKED_MALLOCZERO( h->frames.unused[0], (h->frames.i_delay + 3) * sizeof(x264_frame_t *) );
1132 /* Allocate room for max refs plus a few extra just in case. */
1133 CHECKED_MALLOCZERO( h->frames.unused[1], (h->i_thread_frames + X264_REF_MAX + 4) * sizeof(x264_frame_t *) );
1134 CHECKED_MALLOCZERO( h->frames.current, (h->param.i_sync_lookahead + h->param.i_bframe
1135 + h->i_thread_frames + 3) * sizeof(x264_frame_t *) );
1136 if( h->param.analyse.i_weighted_pred > 0 )
1137 CHECKED_MALLOCZERO( h->frames.blank_unused, h->i_thread_frames * 4 * sizeof(x264_frame_t *) );
1138 h->i_ref[0] = h->i_ref[1] = 0;
1139 h->i_cpb_delay = h->i_coded_fields = h->i_disp_fields = 0;
1140 h->i_prev_duration = ((uint64_t)h->param.i_fps_den * h->sps->vui.i_time_scale) / ((uint64_t)h->param.i_fps_num * h->sps->vui.i_num_units_in_tick);
1141 h->i_disp_fields_last_frame = -1;
1144 /* init CPU functions */
1145 x264_predict_16x16_init( h->param.cpu, h->predict_16x16 );
1146 x264_predict_8x8c_init( h->param.cpu, h->predict_8x8c );
1147 x264_predict_8x16c_init( h->param.cpu, h->predict_8x16c );
1148 x264_predict_8x8_init( h->param.cpu, h->predict_8x8, &h->predict_8x8_filter );
1149 x264_predict_4x4_init( h->param.cpu, h->predict_4x4 );
1150 if( h->param.b_cabac )
1151 x264_cabac_init( h );
1154 x264_pixel_init( h->param.cpu, &h->pixf );
1155 x264_dct_init( h->param.cpu, &h->dctf );
1156 x264_zigzag_init( h->param.cpu, &h->zigzagf_progressive, &h->zigzagf_interlaced );
1157 memcpy( &h->zigzagf, PARAM_INTERLACED ? &h->zigzagf_interlaced : &h->zigzagf_progressive, sizeof(h->zigzagf) );
1158 x264_mc_init( h->param.cpu, &h->mc );
1159 x264_quant_init( h, h->param.cpu, &h->quantf );
1160 x264_deblock_init( h->param.cpu, &h->loopf, PARAM_INTERLACED );
1161 x264_bitstream_init( h->param.cpu, &h->bsf );
1162 x264_dct_init_weights();
1165 chroma_dsp_init( h );
1167 p = buf + sprintf( buf, "using cpu capabilities:" );
1168 for( int i = 0; x264_cpu_names[i].flags; i++ )
1170 if( !strcmp(x264_cpu_names[i].name, "SSE2")
1171 && h->param.cpu & (X264_CPU_SSE2_IS_FAST|X264_CPU_SSE2_IS_SLOW) )
1173 if( !strcmp(x264_cpu_names[i].name, "SSE3")
1174 && (h->param.cpu & X264_CPU_SSSE3 || !(h->param.cpu & X264_CPU_CACHELINE_64)) )
1176 if( !strcmp(x264_cpu_names[i].name, "SSE4.1")
1177 && (h->param.cpu & X264_CPU_SSE42) )
1179 if( (h->param.cpu & x264_cpu_names[i].flags) == x264_cpu_names[i].flags
1180 && (!i || x264_cpu_names[i].flags != x264_cpu_names[i-1].flags) )
1181 p += sprintf( p, " %s", x264_cpu_names[i].name );
1184 p += sprintf( p, " none!" );
1185 x264_log( h, X264_LOG_INFO, "%s\n", buf );
1187 float *logs = x264_analyse_prepare_costs( h );
1190 for( qp = X264_MIN( h->param.rc.i_qp_min, QP_MAX_SPEC ); qp <= h->param.rc.i_qp_max; qp++ )
1191 if( x264_analyse_init_costs( h, logs, qp ) )
1193 if( x264_analyse_init_costs( h, logs, X264_LOOKAHEAD_QP ) )
1197 static const uint16_t cost_mv_correct[7] = { 24, 47, 95, 189, 379, 757, 1515 };
1198 /* Checks for known miscompilation issues. */
1199 if( h->cost_mv[X264_LOOKAHEAD_QP][2013] != cost_mv_correct[BIT_DEPTH-8] )
1201 x264_log( h, X264_LOG_ERROR, "MV cost test failed: x264 has been miscompiled!\n" );
1205 /* Must be volatile or else GCC will optimize it out. */
1206 volatile int temp = 392;
1207 if( x264_clz( temp ) != 23 )
1209 x264_log( h, X264_LOG_ERROR, "CLZ test failed: x264 has been miscompiled!\n" );
1210 #if ARCH_X86 || ARCH_X86_64
1211 x264_log( h, X264_LOG_ERROR, "Are you attempting to run an SSE4a-targeted build on a CPU that\n" );
1212 x264_log( h, X264_LOG_ERROR, "doesn't support it?\n" );
1218 h->out.i_bitstream = X264_MAX( 1000000, h->param.i_width * h->param.i_height * 4
1219 * ( h->param.rc.i_rc_method == X264_RC_ABR ? pow( 0.95, h->param.rc.i_qp_min )
1220 : pow( 0.95, h->param.rc.i_qp_constant ) * X264_MAX( 1, h->param.rc.f_ip_factor )));
1222 h->nal_buffer_size = h->out.i_bitstream * 3/2 + 4;
1223 CHECKED_MALLOC( h->nal_buffer, h->nal_buffer_size );
1225 if( h->param.i_threads > 1 &&
1226 x264_threadpool_init( &h->threadpool, h->param.i_threads, (void*)x264_encoder_thread_init, h ) )
1230 for( int i = 1; i < h->param.i_threads + !!h->param.i_sync_lookahead; i++ )
1231 CHECKED_MALLOC( h->thread[i], sizeof(x264_t) );
1233 for( int i = 0; i < h->param.i_threads; i++ )
1235 int init_nal_count = h->param.i_slice_count + 3;
1236 int allocate_threadlocal_data = !h->param.b_sliced_threads || !i;
1240 if( allocate_threadlocal_data )
1242 h->thread[i]->fdec = x264_frame_pop_unused( h, 1 );
1243 if( !h->thread[i]->fdec )
1247 h->thread[i]->fdec = h->thread[0]->fdec;
1249 CHECKED_MALLOC( h->thread[i]->out.p_bitstream, h->out.i_bitstream );
1250 /* Start each thread with room for init_nal_count NAL units; it'll realloc later if needed. */
1251 CHECKED_MALLOC( h->thread[i]->out.nal, init_nal_count*sizeof(x264_nal_t) );
1252 h->thread[i]->out.i_nals_allocated = init_nal_count;
1254 if( allocate_threadlocal_data && x264_macroblock_cache_allocate( h->thread[i] ) < 0 )
1258 if( x264_lookahead_init( h, i_slicetype_length ) )
1261 for( int i = 0; i < h->param.i_threads; i++ )
1262 if( x264_macroblock_thread_allocate( h->thread[i], 0 ) < 0 )
1265 if( x264_ratecontrol_new( h ) < 0 )
1268 if( h->param.i_nal_hrd )
1270 x264_log( h, X264_LOG_DEBUG, "HRD bitrate: %i bits/sec\n", h->sps->vui.hrd.i_bit_rate_unscaled );
1271 x264_log( h, X264_LOG_DEBUG, "CPB size: %i bits\n", h->sps->vui.hrd.i_cpb_size_unscaled );
1274 if( h->param.psz_dump_yuv )
1276 /* create or truncate the reconstructed video file */
1277 FILE *f = fopen( h->param.psz_dump_yuv, "w" );
1280 x264_log( h, X264_LOG_ERROR, "dump_yuv: can't write to %s\n", h->param.psz_dump_yuv );
1283 else if( !x264_is_regular_file( f ) )
1285 x264_log( h, X264_LOG_ERROR, "dump_yuv: incompatible with non-regular file %s\n", h->param.psz_dump_yuv );
1291 const char *profile = h->sps->i_profile_idc == PROFILE_BASELINE ? "Constrained Baseline" :
1292 h->sps->i_profile_idc == PROFILE_MAIN ? "Main" :
1293 h->sps->i_profile_idc == PROFILE_HIGH ? "High" :
1294 h->sps->i_profile_idc == PROFILE_HIGH10 ? (h->sps->b_constraint_set3 == 1 ? "High 10 Intra" : "High 10") :
1295 h->sps->i_profile_idc == PROFILE_HIGH422 ? (h->sps->b_constraint_set3 == 1 ? "High 4:2:2 Intra" : "High 4:2:2") :
1296 h->sps->b_constraint_set3 == 1 ? "High 4:4:4 Intra" : "High 4:4:4 Predictive";
1298 snprintf( level, sizeof(level), "%d.%d", h->sps->i_level_idc/10, h->sps->i_level_idc%10 );
1299 if( h->sps->i_level_idc == 9 || ( h->sps->i_level_idc == 11 && h->sps->b_constraint_set3 &&
1300 (h->sps->i_profile_idc >= PROFILE_BASELINE && h->sps->i_profile_idc <= PROFILE_EXTENDED) ) )
1301 strcpy( level, "1b" );
1303 if( h->sps->i_profile_idc < PROFILE_HIGH10 )
1305 x264_log( h, X264_LOG_INFO, "profile %s, level %s\n",
1310 static const char * const subsampling[4] = { "4:0:0", "4:2:0", "4:2:2", "4:4:4" };
1311 x264_log( h, X264_LOG_INFO, "profile %s, level %s, %s %d-bit\n",
1312 profile, level, subsampling[CHROMA_FORMAT], BIT_DEPTH );
1321 /****************************************************************************
1322 * x264_encoder_reconfig:
1323 ****************************************************************************/
1324 int x264_encoder_reconfig( x264_t *h, x264_param_t *param )
1326 int rc_reconfig = 0;
1327 h = h->thread[h->thread[0]->i_thread_phase];
1328 x264_set_aspect_ratio( h, param, 0 );
1329 #define COPY(var) h->param.var = param->var
1330 COPY( i_frame_reference ); // but never uses more refs than initially specified
1331 COPY( i_bframe_bias );
1332 if( h->param.i_scenecut_threshold )
1333 COPY( i_scenecut_threshold ); // can't turn it on or off, only vary the threshold
1334 COPY( b_deblocking_filter );
1335 COPY( i_deblocking_filter_alphac0 );
1336 COPY( i_deblocking_filter_beta );
1337 COPY( i_frame_packing );
1338 COPY( analyse.inter );
1339 COPY( analyse.intra );
1340 COPY( analyse.i_direct_mv_pred );
1341 /* Scratch buffer prevents me_range from being increased for esa/tesa */
1342 if( h->param.analyse.i_me_method < X264_ME_ESA || param->analyse.i_me_range < h->param.analyse.i_me_range )
1343 COPY( analyse.i_me_range );
1344 COPY( analyse.i_noise_reduction );
1345 /* We can't switch out of subme=0 during encoding. */
1346 if( h->param.analyse.i_subpel_refine )
1347 COPY( analyse.i_subpel_refine );
1348 COPY( analyse.i_trellis );
1349 COPY( analyse.b_chroma_me );
1350 COPY( analyse.b_dct_decimate );
1351 COPY( analyse.b_fast_pskip );
1352 COPY( analyse.b_mixed_references );
1353 COPY( analyse.f_psy_rd );
1354 COPY( analyse.f_psy_trellis );
1356 // can only twiddle these if they were enabled to begin with:
1357 if( h->param.analyse.i_me_method >= X264_ME_ESA || param->analyse.i_me_method < X264_ME_ESA )
1358 COPY( analyse.i_me_method );
1359 if( h->param.analyse.i_me_method >= X264_ME_ESA && !h->frames.b_have_sub8x8_esa )
1360 h->param.analyse.inter &= ~X264_ANALYSE_PSUB8x8;
1361 if( h->pps->b_transform_8x8_mode )
1362 COPY( analyse.b_transform_8x8 );
1363 if( h->frames.i_max_ref1 > 1 )
1364 COPY( i_bframe_pyramid );
1365 COPY( i_slice_max_size );
1366 COPY( i_slice_max_mbs );
1367 COPY( i_slice_count );
1370 /* VBV can't be turned on if it wasn't on to begin with */
1371 if( h->param.rc.i_vbv_max_bitrate > 0 && h->param.rc.i_vbv_buffer_size > 0 &&
1372 param->rc.i_vbv_max_bitrate > 0 && param->rc.i_vbv_buffer_size > 0 )
1374 rc_reconfig |= h->param.rc.i_vbv_max_bitrate != param->rc.i_vbv_max_bitrate;
1375 rc_reconfig |= h->param.rc.i_vbv_buffer_size != param->rc.i_vbv_buffer_size;
1376 rc_reconfig |= h->param.rc.i_bitrate != param->rc.i_bitrate;
1377 COPY( rc.i_vbv_max_bitrate );
1378 COPY( rc.i_vbv_buffer_size );
1379 COPY( rc.i_bitrate );
1381 rc_reconfig |= h->param.rc.f_rf_constant != param->rc.f_rf_constant;
1382 rc_reconfig |= h->param.rc.f_rf_constant_max != param->rc.f_rf_constant_max;
1383 COPY( rc.f_rf_constant );
1384 COPY( rc.f_rf_constant_max );
1389 int ret = x264_validate_parameters( h, 0 );
1391 /* Supported reconfiguration options (1-pass only):
1395 * bitrate (CBR only) */
1396 if( !ret && rc_reconfig )
1397 x264_ratecontrol_init_reconfigurable( h, 0 );
1402 /****************************************************************************
1403 * x264_encoder_parameters:
1404 ****************************************************************************/
1405 void x264_encoder_parameters( x264_t *h, x264_param_t *param )
1407 memcpy( param, &h->thread[h->i_thread_phase]->param, sizeof(x264_param_t) );
1410 /* internal usage */
1411 static void x264_nal_start( x264_t *h, int i_type, int i_ref_idc )
1413 x264_nal_t *nal = &h->out.nal[h->out.i_nal];
1415 nal->i_ref_idc = i_ref_idc;
1416 nal->i_type = i_type;
1417 nal->b_long_startcode = 1;
1420 nal->p_payload= &h->out.p_bitstream[bs_pos( &h->out.bs ) / 8];
1423 /* if number of allocated nals is not enough, re-allocate a larger one. */
1424 static int x264_nal_check_buffer( x264_t *h )
1426 if( h->out.i_nal >= h->out.i_nals_allocated )
1428 x264_nal_t *new_out = x264_malloc( sizeof(x264_nal_t) * (h->out.i_nals_allocated*2) );
1431 memcpy( new_out, h->out.nal, sizeof(x264_nal_t) * (h->out.i_nals_allocated) );
1432 x264_free( h->out.nal );
1433 h->out.nal = new_out;
1434 h->out.i_nals_allocated *= 2;
1439 static int x264_nal_end( x264_t *h )
1441 x264_nal_t *nal = &h->out.nal[h->out.i_nal];
1442 uint8_t *end = &h->out.p_bitstream[bs_pos( &h->out.bs ) / 8];
1443 nal->i_payload = end - nal->p_payload;
1444 /* nal_escape_mmx reads past the end of the input.
1445 * While undefined padding wouldn't actually affect the output, it makes valgrind unhappy. */
1446 memset( end, 0xff, 32 );
1447 if( h->param.nalu_process )
1448 h->param.nalu_process( h, nal );
1451 return x264_nal_check_buffer( h );
1454 static int x264_encoder_encapsulate_nals( x264_t *h, int start )
1456 int nal_size = 0, previous_nal_size = 0;
1458 if( h->param.nalu_process )
1460 for( int i = start; i < h->out.i_nal; i++ )
1461 nal_size += h->out.nal[i].i_payload;
1465 for( int i = 0; i < start; i++ )
1466 previous_nal_size += h->out.nal[i].i_payload;
1468 for( int i = start; i < h->out.i_nal; i++ )
1469 nal_size += h->out.nal[i].i_payload;
1471 /* Worst-case NAL unit escaping: reallocate the buffer if it's too small. */
1472 int necessary_size = nal_size * 3/2 + h->out.i_nal * 4;
1473 if( h->nal_buffer_size < necessary_size )
1475 h->nal_buffer_size = necessary_size * 2;
1476 uint8_t *buf = x264_malloc( h->nal_buffer_size );
1479 if( previous_nal_size )
1480 memcpy( buf, h->nal_buffer, previous_nal_size );
1481 x264_free( h->nal_buffer );
1482 h->nal_buffer = buf;
1485 uint8_t *nal_buffer = h->nal_buffer + previous_nal_size;
1487 for( int i = start; i < h->out.i_nal; i++ )
1489 h->out.nal[i].b_long_startcode = !i || h->out.nal[i].i_type == NAL_SPS || h->out.nal[i].i_type == NAL_PPS;
1490 x264_nal_encode( h, nal_buffer, &h->out.nal[i] );
1491 nal_buffer += h->out.nal[i].i_payload;
1496 return nal_buffer - (h->nal_buffer + previous_nal_size);
1499 /****************************************************************************
1500 * x264_encoder_headers:
1501 ****************************************************************************/
1502 int x264_encoder_headers( x264_t *h, x264_nal_t **pp_nal, int *pi_nal )
1505 /* init bitstream context */
1507 bs_init( &h->out.bs, h->out.p_bitstream, h->out.i_bitstream );
1509 /* Write SEI, SPS and PPS. */
1511 /* generate sequence parameters */
1512 x264_nal_start( h, NAL_SPS, NAL_PRIORITY_HIGHEST );
1513 x264_sps_write( &h->out.bs, h->sps );
1514 if( x264_nal_end( h ) )
1517 /* generate picture parameters */
1518 x264_nal_start( h, NAL_PPS, NAL_PRIORITY_HIGHEST );
1519 x264_pps_write( &h->out.bs, h->sps, h->pps );
1520 if( x264_nal_end( h ) )
1523 /* identify ourselves */
1524 x264_nal_start( h, NAL_SEI, NAL_PRIORITY_DISPOSABLE );
1525 if( x264_sei_version_write( h, &h->out.bs ) )
1527 if( x264_nal_end( h ) )
1530 frame_size = x264_encoder_encapsulate_nals( h, 0 );
1531 if( frame_size < 0 )
1535 *pi_nal = h->out.i_nal;
1536 *pp_nal = &h->out.nal[0];
1542 /* Check to see whether we have chosen a reference list ordering different
1543 * from the standard's default. */
1544 static inline void x264_reference_check_reorder( x264_t *h )
1546 /* The reorder check doesn't check for missing frames, so just
1547 * force a reorder if one of the reference list is corrupt. */
1548 for( int i = 0; h->frames.reference[i]; i++ )
1549 if( h->frames.reference[i]->b_corrupt )
1551 h->b_ref_reorder[0] = 1;
1554 for( int list = 0; list <= (h->sh.i_type == SLICE_TYPE_B); list++ )
1555 for( int i = 0; i < h->i_ref[list] - 1; i++ )
1557 int framenum_diff = h->fref[list][i+1]->i_frame_num - h->fref[list][i]->i_frame_num;
1558 int poc_diff = h->fref[list][i+1]->i_poc - h->fref[list][i]->i_poc;
1559 /* P and B-frames use different default orders. */
1560 if( h->sh.i_type == SLICE_TYPE_P ? framenum_diff > 0 : list == 1 ? poc_diff < 0 : poc_diff > 0 )
1562 h->b_ref_reorder[list] = 1;
1568 /* return -1 on failure, else return the index of the new reference frame */
1569 int x264_weighted_reference_duplicate( x264_t *h, int i_ref, const x264_weight_t *w )
1571 int i = h->i_ref[0];
1573 x264_frame_t *newframe;
1574 if( i <= 1 ) /* empty list, definitely can't duplicate frame */
1577 //Duplication is only used in X264_WEIGHTP_SMART
1578 if( h->param.analyse.i_weighted_pred != X264_WEIGHTP_SMART )
1581 /* Duplication is a hack to compensate for crappy rounding in motion compensation.
1582 * With high bit depth, it's not worth doing, so turn it off except in the case of
1583 * unweighted dupes. */
1584 if( BIT_DEPTH > 8 && w != x264_weight_none )
1587 newframe = x264_frame_pop_blank_unused( h );
1591 //FIXME: probably don't need to copy everything
1592 *newframe = *h->fref[0][i_ref];
1593 newframe->i_reference_count = 1;
1594 newframe->orig = h->fref[0][i_ref];
1595 newframe->b_duplicate = 1;
1596 memcpy( h->fenc->weight[j], w, sizeof(h->fenc->weight[i]) );
1598 /* shift the frames to make space for the dupe. */
1599 h->b_ref_reorder[0] = 1;
1600 if( h->i_ref[0] < X264_REF_MAX )
1602 h->fref[0][X264_REF_MAX-1] = NULL;
1603 x264_frame_unshift( &h->fref[0][j], newframe );
1608 static void x264_weighted_pred_init( x264_t *h )
1610 /* for now no analysis and set all weights to nothing */
1611 for( int i_ref = 0; i_ref < h->i_ref[0]; i_ref++ )
1612 h->fenc->weighted[i_ref] = h->fref[0][i_ref]->filtered[0][0];
1614 // FIXME: This only supports weighting of one reference frame
1615 // and duplicates of that frame.
1616 h->fenc->i_lines_weighted = 0;
1618 for( int i_ref = 0; i_ref < (h->i_ref[0] << SLICE_MBAFF); i_ref++ )
1619 for( int i = 0; i < 3; i++ )
1620 h->sh.weight[i_ref][i].weightfn = NULL;
1623 if( h->sh.i_type != SLICE_TYPE_P || h->param.analyse.i_weighted_pred <= 0 )
1626 int i_padv = PADV << PARAM_INTERLACED;
1628 int weightplane[2] = { 0, 0 };
1629 int buffer_next = 0;
1630 for( int i = 0; i < 3; i++ )
1632 for( int j = 0; j < h->i_ref[0]; j++ )
1634 if( h->fenc->weight[j][i].weightfn )
1636 h->sh.weight[j][i] = h->fenc->weight[j][i];
1637 // if weight is useless, don't write it to stream
1638 if( h->sh.weight[j][i].i_scale == 1<<h->sh.weight[j][i].i_denom && h->sh.weight[j][i].i_offset == 0 )
1639 h->sh.weight[j][i].weightfn = NULL;
1642 if( !weightplane[!!i] )
1644 weightplane[!!i] = 1;
1645 h->sh.weight[0][!!i].i_denom = denom = h->sh.weight[j][i].i_denom;
1646 assert( x264_clip3( denom, 0, 7 ) == denom );
1649 assert( h->sh.weight[j][i].i_denom == denom );
1652 h->fenc->weighted[j] = h->mb.p_weight_buf[buffer_next++] + h->fenc->i_stride[0] * i_padv + PADH;
1653 //scale full resolution frame
1654 if( h->param.i_threads == 1 )
1656 pixel *src = h->fref[0][j]->filtered[0][0] - h->fref[0][j]->i_stride[0]*i_padv - PADH;
1657 pixel *dst = h->fenc->weighted[j] - h->fenc->i_stride[0]*i_padv - PADH;
1658 int stride = h->fenc->i_stride[0];
1659 int width = h->fenc->i_width[0] + PADH*2;
1660 int height = h->fenc->i_lines[0] + i_padv*2;
1661 x264_weight_scale_plane( h, dst, stride, src, stride, width, height, &h->sh.weight[j][0] );
1662 h->fenc->i_lines_weighted = height;
1670 if( weightplane[1] )
1671 for( int i = 0; i < h->i_ref[0]; i++ )
1673 if( h->sh.weight[i][1].weightfn && !h->sh.weight[i][2].weightfn )
1675 h->sh.weight[i][2].i_scale = 1 << h->sh.weight[0][1].i_denom;
1676 h->sh.weight[i][2].i_offset = 0;
1678 else if( h->sh.weight[i][2].weightfn && !h->sh.weight[i][1].weightfn )
1680 h->sh.weight[i][1].i_scale = 1 << h->sh.weight[0][1].i_denom;
1681 h->sh.weight[i][1].i_offset = 0;
1685 if( !weightplane[0] )
1686 h->sh.weight[0][0].i_denom = 0;
1687 if( !weightplane[1] )
1688 h->sh.weight[0][1].i_denom = 0;
1689 h->sh.weight[0][2].i_denom = h->sh.weight[0][1].i_denom;
1692 static inline int x264_reference_distance( x264_t *h, x264_frame_t *frame )
1694 if( h->param.i_frame_packing == 5 )
1695 return abs((h->fenc->i_frame&~1) - (frame->i_frame&~1)) +
1696 ((h->fenc->i_frame&1) != (frame->i_frame&1));
1698 return abs(h->fenc->i_frame - frame->i_frame);
1701 static inline void x264_reference_build_list( x264_t *h, int i_poc )
1705 /* build ref list 0/1 */
1706 h->mb.pic.i_fref[0] = h->i_ref[0] = 0;
1707 h->mb.pic.i_fref[1] = h->i_ref[1] = 0;
1708 if( h->sh.i_type == SLICE_TYPE_I )
1711 for( int i = 0; h->frames.reference[i]; i++ )
1713 if( h->frames.reference[i]->b_corrupt )
1715 if( h->frames.reference[i]->i_poc < i_poc )
1716 h->fref[0][h->i_ref[0]++] = h->frames.reference[i];
1717 else if( h->frames.reference[i]->i_poc > i_poc )
1718 h->fref[1][h->i_ref[1]++] = h->frames.reference[i];
1721 /* Order reference lists by distance from the current frame. */
1722 for( int list = 0; list < 2; list++ )
1724 h->fref_nearest[list] = h->fref[list][0];
1728 for( int i = 0; i < h->i_ref[list] - 1; i++ )
1730 if( list ? h->fref[list][i+1]->i_poc < h->fref_nearest[list]->i_poc
1731 : h->fref[list][i+1]->i_poc > h->fref_nearest[list]->i_poc )
1732 h->fref_nearest[list] = h->fref[list][i+1];
1733 if( x264_reference_distance( h, h->fref[list][i] ) > x264_reference_distance( h, h->fref[list][i+1] ) )
1735 XCHG( x264_frame_t*, h->fref[list][i], h->fref[list][i+1] );
1743 if( h->sh.i_mmco_remove_from_end )
1744 for( int i = h->i_ref[0]-1; i >= h->i_ref[0] - h->sh.i_mmco_remove_from_end; i-- )
1746 int diff = h->i_frame_num - h->fref[0][i]->i_frame_num;
1747 h->sh.mmco[h->sh.i_mmco_command_count].i_poc = h->fref[0][i]->i_poc;
1748 h->sh.mmco[h->sh.i_mmco_command_count++].i_difference_of_pic_nums = diff;
1751 x264_reference_check_reorder( h );
1753 h->i_ref[1] = X264_MIN( h->i_ref[1], h->frames.i_max_ref1 );
1754 h->i_ref[0] = X264_MIN( h->i_ref[0], h->frames.i_max_ref0 );
1755 h->i_ref[0] = X264_MIN( h->i_ref[0], h->param.i_frame_reference ); // if reconfig() has lowered the limit
1757 /* For Blu-ray compliance, don't reference frames outside of the minigop. */
1758 if( IS_X264_TYPE_B( h->fenc->i_type ) && h->param.b_bluray_compat )
1759 h->i_ref[0] = X264_MIN( h->i_ref[0], IS_X264_TYPE_B( h->fref[0][0]->i_type ) + 1 );
1761 /* add duplicates */
1762 if( h->fenc->i_type == X264_TYPE_P )
1765 if( h->param.analyse.i_weighted_pred >= X264_WEIGHTP_SIMPLE )
1768 w[1].weightfn = w[2].weightfn = NULL;
1769 if( h->param.rc.b_stat_read )
1770 x264_ratecontrol_set_weights( h, h->fenc );
1772 if( !h->fenc->weight[0][0].weightfn )
1774 h->fenc->weight[0][0].i_denom = 0;
1775 SET_WEIGHT( w[0], 1, 1, 0, -1 );
1776 idx = x264_weighted_reference_duplicate( h, 0, w );
1780 if( h->fenc->weight[0][0].i_scale == 1<<h->fenc->weight[0][0].i_denom )
1782 SET_WEIGHT( h->fenc->weight[0][0], 1, 1, 0, h->fenc->weight[0][0].i_offset );
1784 x264_weighted_reference_duplicate( h, 0, x264_weight_none );
1785 if( h->fenc->weight[0][0].i_offset > -128 )
1787 w[0] = h->fenc->weight[0][0];
1789 h->mc.weight_cache( h, &w[0] );
1790 idx = x264_weighted_reference_duplicate( h, 0, w );
1794 h->mb.ref_blind_dupe = idx;
1797 assert( h->i_ref[0] + h->i_ref[1] <= X264_REF_MAX );
1798 h->mb.pic.i_fref[0] = h->i_ref[0];
1799 h->mb.pic.i_fref[1] = h->i_ref[1];
1802 static void x264_fdec_filter_row( x264_t *h, int mb_y, int b_inloop )
1804 /* mb_y is the mb to be encoded next, not the mb to be filtered here */
1805 int b_hpel = h->fdec->b_kept_as_ref;
1806 int b_deblock = h->sh.i_disable_deblocking_filter_idc != 1;
1807 int b_end = mb_y == h->i_threadslice_end;
1808 int b_measure_quality = 1;
1809 int min_y = mb_y - (1 << SLICE_MBAFF);
1810 int b_start = min_y == h->i_threadslice_start;
1811 /* Even in interlaced mode, deblocking never modifies more than 4 pixels
1812 * above each MB, as bS=4 doesn't happen for the top of interlaced mbpairs. */
1813 int minpix_y = min_y*16 - 4 * !b_start;
1814 int maxpix_y = mb_y*16 - 4 * !b_end;
1815 b_deblock &= b_hpel || h->param.psz_dump_yuv;
1816 if( h->param.b_sliced_threads && b_start && min_y && !b_inloop )
1818 b_deblock = 0; /* We already deblocked on the inloop pass. */
1819 b_measure_quality = 0; /* We already measured quality on the inloop pass. */
1821 if( mb_y & SLICE_MBAFF )
1823 if( min_y < h->i_threadslice_start )
1827 for( int y = min_y; y < mb_y; y += (1 << SLICE_MBAFF) )
1828 x264_frame_deblock_row( h, y );
1830 /* FIXME: Prediction requires different borders for interlaced/progressive mc,
1831 * but the actual image data is equivalent. For now, maintain this
1832 * consistency by copying deblocked pixels between planes. */
1833 if( PARAM_INTERLACED )
1834 for( int p = 0; p < h->fdec->i_plane; p++ )
1835 for( int i = minpix_y>>(h->mb.chroma_v_shift && p); i < maxpix_y>>(h->mb.chroma_v_shift && p); i++ )
1836 memcpy( h->fdec->plane_fld[p] + i*h->fdec->i_stride[p],
1837 h->fdec->plane[p] + i*h->fdec->i_stride[p],
1838 h->mb.i_mb_width*16*sizeof(pixel) );
1842 int end = mb_y == h->mb.i_mb_height;
1843 x264_frame_expand_border( h, h->fdec, min_y, end );
1844 if( h->param.analyse.i_subpel_refine )
1846 x264_frame_filter( h, h->fdec, min_y, end );
1847 x264_frame_expand_border_filtered( h, h->fdec, min_y, end );
1852 for( int i = 0; i < 3; i++ )
1854 XCHG( pixel *, h->intra_border_backup[0][i], h->intra_border_backup[3][i] );
1855 XCHG( pixel *, h->intra_border_backup[1][i], h->intra_border_backup[4][i] );
1858 if( h->i_thread_frames > 1 && h->fdec->b_kept_as_ref )
1859 x264_frame_cond_broadcast( h->fdec, mb_y*16 + (b_end ? 10000 : -(X264_THREAD_HEIGHT << SLICE_MBAFF)) );
1861 if( b_measure_quality )
1863 maxpix_y = X264_MIN( maxpix_y, h->param.i_height );
1864 if( h->param.analyse.b_psnr )
1866 for( int p = 0; p < (CHROMA444 ? 3 : 1); p++ )
1867 h->stat.frame.i_ssd[p] += x264_pixel_ssd_wxh( &h->pixf,
1868 h->fdec->plane[p] + minpix_y * h->fdec->i_stride[p], h->fdec->i_stride[p],
1869 h->fenc->plane[p] + minpix_y * h->fenc->i_stride[p], h->fenc->i_stride[p],
1870 h->param.i_width, maxpix_y-minpix_y );
1873 uint64_t ssd_u, ssd_v;
1874 int v_shift = h->mb.chroma_v_shift;
1875 x264_pixel_ssd_nv12( &h->pixf,
1876 h->fdec->plane[1] + (minpix_y>>v_shift) * h->fdec->i_stride[1], h->fdec->i_stride[1],
1877 h->fenc->plane[1] + (minpix_y>>v_shift) * h->fenc->i_stride[1], h->fenc->i_stride[1],
1878 h->param.i_width>>1, (maxpix_y-minpix_y)>>v_shift, &ssd_u, &ssd_v );
1879 h->stat.frame.i_ssd[1] += ssd_u;
1880 h->stat.frame.i_ssd[2] += ssd_v;
1884 if( h->param.analyse.b_ssim )
1888 /* offset by 2 pixels to avoid alignment of ssim blocks with dct blocks,
1889 * and overlap by 4 */
1890 minpix_y += b_start ? 2 : -6;
1891 h->stat.frame.f_ssim +=
1892 x264_pixel_ssim_wxh( &h->pixf,
1893 h->fdec->plane[0] + 2+minpix_y*h->fdec->i_stride[0], h->fdec->i_stride[0],
1894 h->fenc->plane[0] + 2+minpix_y*h->fenc->i_stride[0], h->fenc->i_stride[0],
1895 h->param.i_width-2, maxpix_y-minpix_y, h->scratch_buffer, &ssim_cnt );
1896 h->stat.frame.i_ssim_cnt += ssim_cnt;
1901 static inline int x264_reference_update( x264_t *h )
1903 if( !h->fdec->b_kept_as_ref )
1905 if( h->i_thread_frames > 1 )
1907 x264_frame_push_unused( h, h->fdec );
1908 h->fdec = x264_frame_pop_unused( h, 1 );
1915 /* apply mmco from previous frame. */
1916 for( int i = 0; i < h->sh.i_mmco_command_count; i++ )
1917 for( int j = 0; h->frames.reference[j]; j++ )
1918 if( h->frames.reference[j]->i_poc == h->sh.mmco[i].i_poc )
1919 x264_frame_push_unused( h, x264_frame_shift( &h->frames.reference[j] ) );
1921 /* move frame in the buffer */
1922 x264_frame_push( h->frames.reference, h->fdec );
1923 if( h->frames.reference[h->sps->i_num_ref_frames] )
1924 x264_frame_push_unused( h, x264_frame_shift( h->frames.reference ) );
1925 h->fdec = x264_frame_pop_unused( h, 1 );
1931 static inline void x264_reference_reset( x264_t *h )
1933 while( h->frames.reference[0] )
1934 x264_frame_push_unused( h, x264_frame_pop( h->frames.reference ) );
1939 static inline void x264_reference_hierarchy_reset( x264_t *h )
1942 int b_hasdelayframe = 0;
1944 /* look for delay frames -- chain must only contain frames that are disposable */
1945 for( int i = 0; h->frames.current[i] && IS_DISPOSABLE( h->frames.current[i]->i_type ); i++ )
1946 b_hasdelayframe |= h->frames.current[i]->i_coded
1947 != h->frames.current[i]->i_frame + h->sps->vui.i_num_reorder_frames;
1949 /* This function must handle b-pyramid and clear frames for open-gop */
1950 if( h->param.i_bframe_pyramid != X264_B_PYRAMID_STRICT && !b_hasdelayframe && h->frames.i_poc_last_open_gop == -1 )
1953 /* Remove last BREF. There will never be old BREFs in the
1954 * dpb during a BREF decode when pyramid == STRICT */
1955 for( ref = 0; h->frames.reference[ref]; ref++ )
1957 if( ( h->param.i_bframe_pyramid == X264_B_PYRAMID_STRICT
1958 && h->frames.reference[ref]->i_type == X264_TYPE_BREF )
1959 || ( h->frames.reference[ref]->i_poc < h->frames.i_poc_last_open_gop
1960 && h->sh.i_type != SLICE_TYPE_B ) )
1962 int diff = h->i_frame_num - h->frames.reference[ref]->i_frame_num;
1963 h->sh.mmco[h->sh.i_mmco_command_count].i_difference_of_pic_nums = diff;
1964 h->sh.mmco[h->sh.i_mmco_command_count++].i_poc = h->frames.reference[ref]->i_poc;
1965 x264_frame_push_unused( h, x264_frame_shift( &h->frames.reference[ref] ) );
1966 h->b_ref_reorder[0] = 1;
1971 /* Prepare room in the dpb for the delayed display time of the later b-frame's */
1972 if( h->param.i_bframe_pyramid )
1973 h->sh.i_mmco_remove_from_end = X264_MAX( ref + 2 - h->frames.i_max_dpb, 0 );
1976 static inline void x264_slice_init( x264_t *h, int i_nal_type, int i_global_qp )
1978 /* ------------------------ Create slice header ----------------------- */
1979 if( i_nal_type == NAL_SLICE_IDR )
1981 x264_slice_header_init( h, &h->sh, h->sps, h->pps, h->i_idr_pic_id, h->i_frame_num, i_global_qp );
1984 h->i_idr_pic_id ^= 1;
1988 x264_slice_header_init( h, &h->sh, h->sps, h->pps, -1, h->i_frame_num, i_global_qp );
1990 h->sh.i_num_ref_idx_l0_active = h->i_ref[0] <= 0 ? 1 : h->i_ref[0];
1991 h->sh.i_num_ref_idx_l1_active = h->i_ref[1] <= 0 ? 1 : h->i_ref[1];
1992 if( h->sh.i_num_ref_idx_l0_active != h->pps->i_num_ref_idx_l0_default_active ||
1993 (h->sh.i_type == SLICE_TYPE_B && h->sh.i_num_ref_idx_l1_active != h->pps->i_num_ref_idx_l1_default_active) )
1995 h->sh.b_num_ref_idx_override = 1;
1999 if( h->fenc->i_type == X264_TYPE_BREF && h->param.b_bluray_compat && h->sh.i_mmco_command_count )
2002 h->sh_backup = h->sh;
2005 h->fdec->i_frame_num = h->sh.i_frame_num;
2007 if( h->sps->i_poc_type == 0 )
2009 h->sh.i_poc = h->fdec->i_poc;
2010 if( PARAM_INTERLACED )
2012 h->sh.i_delta_poc_bottom = h->param.b_tff ? 1 : -1;
2013 h->sh.i_poc += h->sh.i_delta_poc_bottom == -1;
2016 h->sh.i_delta_poc_bottom = 0;
2017 h->fdec->i_delta_poc[0] = h->sh.i_delta_poc_bottom == -1;
2018 h->fdec->i_delta_poc[1] = h->sh.i_delta_poc_bottom == 1;
2022 /* Nothing to do ? */
2025 x264_macroblock_slice_init( h );
2028 static int x264_slice_write( x264_t *h )
2031 int mb_xy, i_mb_x, i_mb_y;
2032 int i_skip_bak = 0; /* Shut up GCC. */
2033 bs_t UNINIT(bs_bak);
2034 x264_cabac_t cabac_bak;
2035 uint8_t cabac_prevbyte_bak = 0; /* Shut up GCC. */
2036 int mv_bits_bak = 0;
2037 int tex_bits_bak = 0;
2038 /* NALUs other than the first use a 3-byte startcode.
2039 * Add one extra byte for the rbsp, and one more for the final CABAC putbyte.
2040 * Then add an extra 5 bytes just in case, to account for random NAL escapes and
2041 * other inaccuracies. */
2042 int overhead_guess = (NALU_OVERHEAD - (h->param.b_annexb && h->out.i_nal)) + 1 + h->param.b_cabac + 5;
2043 int slice_max_size = h->param.i_slice_max_size > 0 ? (h->param.i_slice_max_size-overhead_guess)*8 : 0;
2044 int back_up_bitstream = slice_max_size || (!h->param.b_cabac && h->sps->i_profile_idc < PROFILE_HIGH);
2045 int starting_bits = bs_pos(&h->out.bs);
2046 int b_deblock = h->sh.i_disable_deblocking_filter_idc != 1;
2047 int b_hpel = h->fdec->b_kept_as_ref;
2048 uint8_t *last_emu_check;
2049 b_deblock &= b_hpel || h->param.psz_dump_yuv;
2050 bs_realign( &h->out.bs );
2053 x264_nal_start( h, h->i_nal_type, h->i_nal_ref_idc );
2054 h->out.nal[h->out.i_nal].i_first_mb = h->sh.i_first_mb;
2057 x264_macroblock_thread_init( h );
2059 /* If this isn't the first slice in the threadslice, set the slice QP
2060 * equal to the last QP in the previous slice for more accurate
2061 * CABAC initialization. */
2062 if( h->sh.i_first_mb != h->i_threadslice_start * h->mb.i_mb_width )
2064 h->sh.i_qp = h->mb.i_last_qp;
2065 h->sh.i_qp_delta = h->sh.i_qp - h->pps->i_pic_init_qp;
2068 x264_slice_header_write( &h->out.bs, &h->sh, h->i_nal_ref_idc );
2069 if( h->param.b_cabac )
2071 /* alignment needed */
2072 bs_align_1( &h->out.bs );
2075 x264_cabac_context_init( h, &h->cabac, h->sh.i_type, x264_clip3( h->sh.i_qp-QP_BD_OFFSET, 0, 51 ), h->sh.i_cabac_init_idc );
2076 x264_cabac_encode_init ( &h->cabac, h->out.bs.p, h->out.bs.p_end );
2077 last_emu_check = h->cabac.p;
2080 last_emu_check = h->out.bs.p;
2081 h->mb.i_last_qp = h->sh.i_qp;
2082 h->mb.i_last_dqp = 0;
2083 h->mb.field_decoding_flag = 0;
2085 i_mb_y = h->sh.i_first_mb / h->mb.i_mb_width;
2086 i_mb_x = h->sh.i_first_mb % h->mb.i_mb_width;
2091 mb_xy = i_mb_x + i_mb_y * h->mb.i_mb_width;
2092 int mb_spos = bs_pos(&h->out.bs) + x264_cabac_pos(&h->cabac);
2094 if( !(i_mb_y & SLICE_MBAFF) )
2096 if( x264_bitstream_check_buffer( h ) )
2099 if( back_up_bitstream )
2101 mv_bits_bak = h->stat.frame.i_mv_bits;
2102 tex_bits_bak = h->stat.frame.i_tex_bits;
2103 /* We don't need the contexts because flushing the CABAC encoder has no context
2104 * dependency and macroblocks are only re-encoded in the case where a slice is
2105 * ended (and thus the content of all contexts are thrown away). */
2106 if( h->param.b_cabac )
2108 memcpy( &cabac_bak, &h->cabac, offsetof(x264_cabac_t, f8_bits_encoded) );
2109 /* x264's CABAC writer modifies the previous byte during carry, so it has to be
2111 cabac_prevbyte_bak = h->cabac.p[-1];
2116 i_skip_bak = i_skip;
2121 if( i_mb_x == 0 && !h->mb.b_reencode_mb )
2122 x264_fdec_filter_row( h, i_mb_y, 1 );
2124 if( PARAM_INTERLACED )
2126 if( h->mb.b_adaptive_mbaff )
2130 /* FIXME: VSAD is fast but fairly poor at choosing the best interlace type. */
2131 h->mb.b_interlaced = x264_field_vsad( h, i_mb_x, i_mb_y );
2132 memcpy( &h->zigzagf, MB_INTERLACED ? &h->zigzagf_interlaced : &h->zigzagf_progressive, sizeof(h->zigzagf) );
2133 if( !MB_INTERLACED && (i_mb_y+2) == h->mb.i_mb_height )
2134 x264_expand_border_mbpair( h, i_mb_x, i_mb_y );
2137 h->mb.field[mb_xy] = MB_INTERLACED;
2142 x264_macroblock_cache_load_interlaced( h, i_mb_x, i_mb_y );
2144 x264_macroblock_cache_load_progressive( h, i_mb_x, i_mb_y );
2146 x264_macroblock_analyse( h );
2148 /* encode this macroblock -> be careful it can change the mb type to P_SKIP if needed */
2150 x264_macroblock_encode( h );
2152 if( h->param.b_cabac )
2154 if( mb_xy > h->sh.i_first_mb && !(SLICE_MBAFF && (i_mb_y&1)) )
2155 x264_cabac_encode_terminal( &h->cabac );
2157 if( IS_SKIP( h->mb.i_type ) )
2158 x264_cabac_mb_skip( h, 1 );
2161 if( h->sh.i_type != SLICE_TYPE_I )
2162 x264_cabac_mb_skip( h, 0 );
2163 x264_macroblock_write_cabac( h, &h->cabac );
2168 if( IS_SKIP( h->mb.i_type ) )
2172 if( h->sh.i_type != SLICE_TYPE_I )
2174 bs_write_ue( &h->out.bs, i_skip ); /* skip run */
2177 x264_macroblock_write_cavlc( h );
2178 /* If there was a CAVLC level code overflow, try again at a higher QP. */
2179 if( h->mb.b_overflow )
2181 h->mb.i_chroma_qp = h->chroma_qp_table[++h->mb.i_qp];
2182 h->mb.i_skip_intra = 0;
2183 h->mb.b_skip_mc = 0;
2184 h->mb.b_overflow = 0;
2186 i_skip = i_skip_bak;
2187 h->stat.frame.i_mv_bits = mv_bits_bak;
2188 h->stat.frame.i_tex_bits = tex_bits_bak;
2194 int total_bits = bs_pos(&h->out.bs) + x264_cabac_pos(&h->cabac);
2195 int mb_size = total_bits - mb_spos;
2197 if( slice_max_size )
2199 /* Count the skip run, just in case. */
2200 if( !h->param.b_cabac )
2201 total_bits += bs_size_ue_big( i_skip );
2202 /* Check for escape bytes. */
2203 uint8_t *end = h->param.b_cabac ? h->cabac.p : h->out.bs.p;
2204 for( ; last_emu_check < end - 2; last_emu_check++ )
2205 if( last_emu_check[0] == 0 && last_emu_check[1] == 0 && last_emu_check[2] <= 3 )
2207 slice_max_size -= 8;
2210 /* We'll just re-encode this last macroblock if we go over the max slice size. */
2211 if( total_bits - starting_bits > slice_max_size && !h->mb.b_reencode_mb )
2213 if( mb_xy != h->sh.i_first_mb )
2215 h->stat.frame.i_mv_bits = mv_bits_bak;
2216 h->stat.frame.i_tex_bits = tex_bits_bak;
2217 if( h->param.b_cabac )
2219 memcpy( &h->cabac, &cabac_bak, offsetof(x264_cabac_t, f8_bits_encoded) );
2220 h->cabac.p[-1] = cabac_prevbyte_bak;
2225 i_skip = i_skip_bak;
2227 h->mb.b_reencode_mb = 1;
2230 // set to bottom of previous mbpair
2232 h->sh.i_last_mb = mb_xy-1+h->mb.i_mb_stride*(!(i_mb_y&1));
2234 h->sh.i_last_mb = (i_mb_y-2+!(i_mb_y&1))*h->mb.i_mb_stride + h->mb.i_mb_width - 1;
2237 h->sh.i_last_mb = mb_xy-1;
2242 h->sh.i_last_mb = mb_xy;
2243 h->mb.b_reencode_mb = 0;
2247 h->mb.b_reencode_mb = 0;
2251 if( h->param.b_visualize )
2252 x264_visualize_mb( h );
2256 x264_macroblock_cache_save( h );
2258 /* accumulate mb stats */
2259 h->stat.frame.i_mb_count[h->mb.i_type]++;
2261 int b_intra = IS_INTRA( h->mb.i_type );
2262 int b_skip = IS_SKIP( h->mb.i_type );
2263 if( h->param.i_log_level >= X264_LOG_INFO || h->param.rc.b_stat_write )
2265 if( !b_intra && !b_skip && !IS_DIRECT( h->mb.i_type ) )
2267 if( h->mb.i_partition != D_8x8 )
2268 h->stat.frame.i_mb_partition[h->mb.i_partition] += 4;
2270 for( int i = 0; i < 4; i++ )
2271 h->stat.frame.i_mb_partition[h->mb.i_sub_partition[i]] ++;
2272 if( h->param.i_frame_reference > 1 )
2273 for( int i_list = 0; i_list <= (h->sh.i_type == SLICE_TYPE_B); i_list++ )
2274 for( int i = 0; i < 4; i++ )
2276 int i_ref = h->mb.cache.ref[i_list][ x264_scan8[4*i] ];
2278 h->stat.frame.i_mb_count_ref[i_list][i_ref] ++;
2283 if( h->param.i_log_level >= X264_LOG_INFO )
2285 if( h->mb.i_cbp_luma | h->mb.i_cbp_chroma )
2289 for( int i = 0; i < 4; i++ )
2290 if( h->mb.i_cbp_luma & (1 << i) )
2291 for( int p = 0; p < 3; p++ )
2294 int nnz8x8 = M16( &h->mb.cache.non_zero_count[x264_scan8[s8]+0] )
2295 | M16( &h->mb.cache.non_zero_count[x264_scan8[s8]+8] );
2296 h->stat.frame.i_mb_cbp[!b_intra + p*2] += !!nnz8x8;
2301 int cbpsum = (h->mb.i_cbp_luma&1) + ((h->mb.i_cbp_luma>>1)&1)
2302 + ((h->mb.i_cbp_luma>>2)&1) + (h->mb.i_cbp_luma>>3);
2303 h->stat.frame.i_mb_cbp[!b_intra + 0] += cbpsum;
2304 h->stat.frame.i_mb_cbp[!b_intra + 2] += !!h->mb.i_cbp_chroma;
2305 h->stat.frame.i_mb_cbp[!b_intra + 4] += h->mb.i_cbp_chroma >> 1;
2308 if( h->mb.i_cbp_luma && !b_intra )
2310 h->stat.frame.i_mb_count_8x8dct[0] ++;
2311 h->stat.frame.i_mb_count_8x8dct[1] += h->mb.b_transform_8x8;
2313 if( b_intra && h->mb.i_type != I_PCM )
2315 if( h->mb.i_type == I_16x16 )
2316 h->stat.frame.i_mb_pred_mode[0][h->mb.i_intra16x16_pred_mode]++;
2317 else if( h->mb.i_type == I_8x8 )
2318 for( int i = 0; i < 16; i += 4 )
2319 h->stat.frame.i_mb_pred_mode[1][h->mb.cache.intra4x4_pred_mode[x264_scan8[i]]]++;
2320 else //if( h->mb.i_type == I_4x4 )
2321 for( int i = 0; i < 16; i++ )
2322 h->stat.frame.i_mb_pred_mode[2][h->mb.cache.intra4x4_pred_mode[x264_scan8[i]]]++;
2323 h->stat.frame.i_mb_pred_mode[3][x264_mb_chroma_pred_mode_fix[h->mb.i_chroma_pred_mode]]++;
2325 h->stat.frame.i_mb_field[b_intra?0:b_skip?2:1] += MB_INTERLACED;
2328 /* calculate deblock strength values (actual deblocking is done per-row along with hpel) */
2330 x264_macroblock_deblock_strength( h );
2332 x264_ratecontrol_mb( h, mb_size );
2334 if( mb_xy == h->sh.i_last_mb )
2339 i_mb_x += i_mb_y & 1;
2340 i_mb_y ^= i_mb_x < h->mb.i_mb_width;
2344 if( i_mb_x == h->mb.i_mb_width )
2350 h->out.nal[h->out.i_nal].i_last_mb = h->sh.i_last_mb;
2352 if( h->param.b_cabac )
2354 x264_cabac_encode_flush( h, &h->cabac );
2355 h->out.bs.p = h->cabac.p;
2360 bs_write_ue( &h->out.bs, i_skip ); /* last skip run */
2361 /* rbsp_slice_trailing_bits */
2362 bs_rbsp_trailing( &h->out.bs );
2363 bs_flush( &h->out.bs );
2365 if( x264_nal_end( h ) )
2368 if( h->sh.i_last_mb == (h->i_threadslice_end * h->mb.i_mb_width - 1) )
2370 h->stat.frame.i_misc_bits = bs_pos( &h->out.bs )
2371 + (h->out.i_nal*NALU_OVERHEAD * 8)
2372 - h->stat.frame.i_tex_bits
2373 - h->stat.frame.i_mv_bits;
2374 x264_fdec_filter_row( h, h->i_threadslice_end, 1 );
2380 static void x264_thread_sync_context( x264_t *dst, x264_t *src )
2385 // reference counting
2386 for( x264_frame_t **f = src->frames.reference; *f; f++ )
2387 (*f)->i_reference_count++;
2388 for( x264_frame_t **f = dst->frames.reference; *f; f++ )
2389 x264_frame_push_unused( src, *f );
2390 src->fdec->i_reference_count++;
2391 x264_frame_push_unused( src, dst->fdec );
2393 // copy everything except the per-thread pointers and the constants.
2394 memcpy( &dst->i_frame, &src->i_frame, offsetof(x264_t, mb.type) - offsetof(x264_t, i_frame) );
2395 dst->param = src->param;
2396 dst->stat = src->stat;
2397 dst->pixf = src->pixf;
2400 static void x264_thread_sync_stat( x264_t *dst, x264_t *src )
2404 memcpy( &dst->stat.i_frame_count, &src->stat.i_frame_count, sizeof(dst->stat) - sizeof(dst->stat.frame) );
2407 static void *x264_slices_write( x264_t *h )
2409 int i_slice_num = 0;
2410 int last_thread_mb = h->sh.i_last_mb;
2413 if( h->param.b_visualize )
2414 if( x264_visualize_init( h ) )
2419 memset( &h->stat.frame, 0, sizeof(h->stat.frame) );
2420 h->mb.b_reencode_mb = 0;
2421 while( h->sh.i_first_mb + SLICE_MBAFF*h->mb.i_mb_stride <= last_thread_mb )
2423 h->sh.i_last_mb = last_thread_mb;
2424 if( h->param.i_slice_max_mbs )
2428 // convert first to mbaff form, add slice-max-mbs, then convert back to normal form
2429 int last_mbaff = 2*(h->sh.i_first_mb % h->mb.i_mb_width)
2430 + h->mb.i_mb_width*(h->sh.i_first_mb / h->mb.i_mb_width)
2431 + h->param.i_slice_max_mbs - 1;
2432 int last_x = (last_mbaff % (2*h->mb.i_mb_width))/2;
2433 int last_y = (last_mbaff / (2*h->mb.i_mb_width))*2 + 1;
2434 h->sh.i_last_mb = last_x + h->mb.i_mb_stride*last_y;
2437 h->sh.i_last_mb = h->sh.i_first_mb + h->param.i_slice_max_mbs - 1;
2439 else if( h->param.i_slice_count && !h->param.b_sliced_threads )
2441 int height = h->mb.i_mb_height >> PARAM_INTERLACED;
2442 int width = h->mb.i_mb_width << PARAM_INTERLACED;
2444 h->sh.i_last_mb = (height * i_slice_num + h->param.i_slice_count/2) / h->param.i_slice_count * width - 1;
2446 h->sh.i_last_mb = X264_MIN( h->sh.i_last_mb, last_thread_mb );
2447 if( x264_stack_align( x264_slice_write, h ) )
2449 h->sh.i_first_mb = h->sh.i_last_mb + 1;
2450 // if i_first_mb is not the last mb in a row then go to the next mb in MBAFF order
2451 if( SLICE_MBAFF && h->sh.i_first_mb % h->mb.i_mb_width )
2452 h->sh.i_first_mb -= h->mb.i_mb_stride;
2456 if( h->param.b_visualize )
2458 x264_visualize_show( h );
2459 x264_visualize_close( h );
2466 static int x264_threaded_slices_write( x264_t *h )
2468 /* set first/last mb and sync contexts */
2469 for( int i = 0; i < h->param.i_threads; i++ )
2471 x264_t *t = h->thread[i];
2474 t->param = h->param;
2475 memcpy( &t->i_frame, &h->i_frame, offsetof(x264_t, rc) - offsetof(x264_t, i_frame) );
2477 int height = h->mb.i_mb_height >> PARAM_INTERLACED;
2478 t->i_threadslice_start = ((height * i + h->param.i_slice_count/2) / h->param.i_threads) << PARAM_INTERLACED;
2479 t->i_threadslice_end = ((height * (i+1) + h->param.i_slice_count/2) / h->param.i_threads) << PARAM_INTERLACED;
2480 t->sh.i_first_mb = t->i_threadslice_start * h->mb.i_mb_width;
2481 t->sh.i_last_mb = t->i_threadslice_end * h->mb.i_mb_width - 1;
2484 x264_stack_align( x264_analyse_weight_frame, h, h->mb.i_mb_height*16 + 16 );
2486 x264_threads_distribute_ratecontrol( h );
2489 for( int i = 0; i < h->param.i_threads; i++ )
2491 x264_threadpool_run( h->threadpool, (void*)x264_slices_write, h->thread[i] );
2492 h->thread[i]->b_thread_active = 1;
2494 for( int i = 0; i < h->param.i_threads; i++ )
2496 h->thread[i]->b_thread_active = 0;
2497 if( (intptr_t)x264_threadpool_wait( h->threadpool, h->thread[i] ) )
2501 /* Go back and fix up the hpel on the borders between slices. */
2502 for( int i = 1; i < h->param.i_threads; i++ )
2504 x264_fdec_filter_row( h->thread[i], h->thread[i]->i_threadslice_start + 1, 0 );
2506 x264_fdec_filter_row( h->thread[i], h->thread[i]->i_threadslice_start + 2, 0 );
2509 x264_threads_merge_ratecontrol( h );
2511 for( int i = 1; i < h->param.i_threads; i++ )
2513 x264_t *t = h->thread[i];
2514 for( int j = 0; j < t->out.i_nal; j++ )
2516 h->out.nal[h->out.i_nal] = t->out.nal[j];
2518 x264_nal_check_buffer( h );
2520 /* All entries in stat.frame are ints except for ssd/ssim. */
2521 for( int j = 0; j < (offsetof(x264_t,stat.frame.i_ssd) - offsetof(x264_t,stat.frame.i_mv_bits)) / sizeof(int); j++ )
2522 ((int*)&h->stat.frame)[j] += ((int*)&t->stat.frame)[j];
2523 for( int j = 0; j < 3; j++ )
2524 h->stat.frame.i_ssd[j] += t->stat.frame.i_ssd[j];
2525 h->stat.frame.f_ssim += t->stat.frame.f_ssim;
2526 h->stat.frame.i_ssim_cnt += t->stat.frame.i_ssim_cnt;
2532 void x264_encoder_intra_refresh( x264_t *h )
2534 h = h->thread[h->i_thread_phase];
2535 h->b_queued_intra_refresh = 1;
2538 int x264_encoder_invalidate_reference( x264_t *h, int64_t pts )
2540 if( h->param.i_bframe )
2542 x264_log( h, X264_LOG_ERROR, "x264_encoder_invalidate_reference is not supported with B-frames enabled\n" );
2545 if( h->param.b_intra_refresh )
2547 x264_log( h, X264_LOG_ERROR, "x264_encoder_invalidate_reference is not supported with intra refresh enabled\n" );
2550 h = h->thread[h->i_thread_phase];
2551 if( pts >= h->i_last_idr_pts )
2553 for( int i = 0; h->frames.reference[i]; i++ )
2554 if( pts <= h->frames.reference[i]->i_pts )
2555 h->frames.reference[i]->b_corrupt = 1;
2556 if( pts <= h->fdec->i_pts )
2557 h->fdec->b_corrupt = 1;
2562 /****************************************************************************
2563 * x264_encoder_encode:
2564 * XXX: i_poc : is the poc of the current given picture
2565 * i_frame : is the number of the frame being coded
2566 * ex: type frame poc
2574 ****************************************************************************/
2575 int x264_encoder_encode( x264_t *h,
2576 x264_nal_t **pp_nal, int *pi_nal,
2577 x264_picture_t *pic_in,
2578 x264_picture_t *pic_out )
2580 x264_t *thread_current, *thread_prev, *thread_oldest;
2581 int i_nal_type, i_nal_ref_idc, i_global_qp;
2582 int overhead = NALU_OVERHEAD;
2584 if( h->i_thread_frames > 1 )
2586 thread_prev = h->thread[ h->i_thread_phase ];
2587 h->i_thread_phase = (h->i_thread_phase + 1) % h->i_thread_frames;
2588 thread_current = h->thread[ h->i_thread_phase ];
2589 thread_oldest = h->thread[ (h->i_thread_phase + 1) % h->i_thread_frames ];
2590 x264_thread_sync_context( thread_current, thread_prev );
2591 x264_thread_sync_ratecontrol( thread_current, thread_prev, thread_oldest );
2600 if( h->param.cpu&X264_CPU_SSE_MISALIGN )
2601 x264_cpu_mask_misalign_sse();
2604 // ok to call this before encoding any frames, since the initial values of fdec have b_kept_as_ref=0
2605 if( x264_reference_update( h ) )
2607 h->fdec->i_lines_completed = -1;
2613 /* ------------------- Setup new frame from picture -------------------- */
2614 if( pic_in != NULL )
2616 /* 1: Copy the picture to a frame and move it to a buffer */
2617 x264_frame_t *fenc = x264_frame_pop_unused( h, 0 );
2621 if( x264_frame_copy_picture( h, fenc, pic_in ) < 0 )
2624 if( h->param.i_width != 16 * h->mb.i_mb_width ||
2625 h->param.i_height != 16 * h->mb.i_mb_height )
2626 x264_frame_expand_border_mod16( h, fenc );
2628 fenc->i_frame = h->frames.i_input++;
2630 if( fenc->i_frame == 0 )
2631 h->frames.i_first_pts = fenc->i_pts;
2632 if( h->frames.i_bframe_delay && fenc->i_frame == h->frames.i_bframe_delay )
2633 h->frames.i_bframe_delay_time = fenc->i_pts - h->frames.i_first_pts;
2635 if( h->param.b_vfr_input && fenc->i_pts <= h->frames.i_largest_pts )
2636 x264_log( h, X264_LOG_WARNING, "non-strictly-monotonic PTS\n" );
2638 h->frames.i_second_largest_pts = h->frames.i_largest_pts;
2639 h->frames.i_largest_pts = fenc->i_pts;
2641 if( (fenc->i_pic_struct < PIC_STRUCT_AUTO) || (fenc->i_pic_struct > PIC_STRUCT_TRIPLE) )
2642 fenc->i_pic_struct = PIC_STRUCT_AUTO;
2644 if( fenc->i_pic_struct == PIC_STRUCT_AUTO )
2647 int b_interlaced = fenc->param ? fenc->param->b_interlaced : h->param.b_interlaced;
2649 int b_interlaced = 0;
2653 int b_tff = fenc->param ? fenc->param->b_tff : h->param.b_tff;
2654 fenc->i_pic_struct = b_tff ? PIC_STRUCT_TOP_BOTTOM : PIC_STRUCT_BOTTOM_TOP;
2657 fenc->i_pic_struct = PIC_STRUCT_PROGRESSIVE;
2660 if( h->param.rc.b_mb_tree && h->param.rc.b_stat_read )
2662 if( x264_macroblock_tree_read( h, fenc, pic_in->prop.quant_offsets ) )
2666 x264_stack_align( x264_adaptive_quant_frame, h, fenc, pic_in->prop.quant_offsets );
2668 if( pic_in->prop.quant_offsets_free )
2669 pic_in->prop.quant_offsets_free( pic_in->prop.quant_offsets );
2671 if( h->frames.b_have_lowres )
2672 x264_frame_init_lowres( h, fenc );
2674 /* 2: Place the frame into the queue for its slice type decision */
2675 x264_lookahead_put_frame( h, fenc );
2677 if( h->frames.i_input <= h->frames.i_delay + 1 - h->i_thread_frames )
2679 /* Nothing yet to encode, waiting for filling of buffers */
2680 pic_out->i_type = X264_TYPE_AUTO;
2686 /* signal kills for lookahead thread */
2687 x264_pthread_mutex_lock( &h->lookahead->ifbuf.mutex );
2688 h->lookahead->b_exit_thread = 1;
2689 x264_pthread_cond_broadcast( &h->lookahead->ifbuf.cv_fill );
2690 x264_pthread_mutex_unlock( &h->lookahead->ifbuf.mutex );
2694 /* 3: The picture is analyzed in the lookahead */
2695 if( !h->frames.current[0] )
2696 x264_lookahead_get_frames( h );
2698 if( !h->frames.current[0] && x264_lookahead_is_empty( h ) )
2699 return x264_encoder_frame_end( thread_oldest, thread_current, pp_nal, pi_nal, pic_out );
2701 /* ------------------- Get frame to be encoded ------------------------- */
2702 /* 4: get picture to encode */
2703 h->fenc = x264_frame_shift( h->frames.current );
2704 if( h->i_frame == h->i_thread_frames - 1 )
2705 h->i_reordered_pts_delay = h->fenc->i_reordered_pts;
2706 if( h->fenc->param )
2708 x264_encoder_reconfig( h, h->fenc->param );
2709 if( h->fenc->param->param_free )
2710 h->fenc->param->param_free( h->fenc->param );
2713 if( !IS_X264_TYPE_I( h->fenc->i_type ) )
2715 int valid_refs_left = 0;
2716 for( int i = 0; h->frames.reference[i]; i++ )
2717 if( !h->frames.reference[i]->b_corrupt )
2719 /* No valid reference frames left: force an IDR. */
2720 if( !valid_refs_left )
2722 h->fenc->b_keyframe = 1;
2723 h->fenc->i_type = X264_TYPE_IDR;
2727 if( h->fenc->b_keyframe )
2729 h->frames.i_last_keyframe = h->fenc->i_frame;
2730 if( h->fenc->i_type == X264_TYPE_IDR )
2733 h->frames.i_last_idr = h->fenc->i_frame;
2736 h->sh.i_mmco_command_count =
2737 h->sh.i_mmco_remove_from_end = 0;
2738 h->b_ref_reorder[0] =
2739 h->b_ref_reorder[1] = 0;
2741 h->fenc->i_poc = 2 * ( h->fenc->i_frame - X264_MAX( h->frames.i_last_idr, 0 ) );
2743 /* ------------------- Setup frame context ----------------------------- */
2744 /* 5: Init data dependent of frame type */
2745 if( h->fenc->i_type == X264_TYPE_IDR )
2747 /* reset ref pictures */
2748 i_nal_type = NAL_SLICE_IDR;
2749 i_nal_ref_idc = NAL_PRIORITY_HIGHEST;
2750 h->sh.i_type = SLICE_TYPE_I;
2751 x264_reference_reset( h );
2752 h->frames.i_poc_last_open_gop = -1;
2754 else if( h->fenc->i_type == X264_TYPE_I )
2756 i_nal_type = NAL_SLICE;
2757 i_nal_ref_idc = NAL_PRIORITY_HIGH; /* Not completely true but for now it is (as all I/P are kept as ref)*/
2758 h->sh.i_type = SLICE_TYPE_I;
2759 x264_reference_hierarchy_reset( h );
2760 if( h->param.b_open_gop )
2761 h->frames.i_poc_last_open_gop = h->fenc->b_keyframe ? h->fenc->i_poc : -1;
2763 else if( h->fenc->i_type == X264_TYPE_P )
2765 i_nal_type = NAL_SLICE;
2766 i_nal_ref_idc = NAL_PRIORITY_HIGH; /* Not completely true but for now it is (as all I/P are kept as ref)*/
2767 h->sh.i_type = SLICE_TYPE_P;
2768 x264_reference_hierarchy_reset( h );
2769 h->frames.i_poc_last_open_gop = -1;
2771 else if( h->fenc->i_type == X264_TYPE_BREF )
2773 i_nal_type = NAL_SLICE;
2774 i_nal_ref_idc = h->param.i_bframe_pyramid == X264_B_PYRAMID_STRICT ? NAL_PRIORITY_LOW : NAL_PRIORITY_HIGH;
2775 h->sh.i_type = SLICE_TYPE_B;
2776 x264_reference_hierarchy_reset( h );
2780 i_nal_type = NAL_SLICE;
2781 i_nal_ref_idc = NAL_PRIORITY_DISPOSABLE;
2782 h->sh.i_type = SLICE_TYPE_B;
2785 h->fdec->i_type = h->fenc->i_type;
2786 h->fdec->i_frame = h->fenc->i_frame;
2787 h->fenc->b_kept_as_ref =
2788 h->fdec->b_kept_as_ref = i_nal_ref_idc != NAL_PRIORITY_DISPOSABLE && h->param.i_keyint_max > 1;
2790 h->fdec->i_pts = h->fenc->i_pts;
2791 if( h->frames.i_bframe_delay )
2793 int64_t *prev_reordered_pts = thread_current->frames.i_prev_reordered_pts;
2794 h->fdec->i_dts = h->i_frame > h->frames.i_bframe_delay
2795 ? prev_reordered_pts[ (h->i_frame - h->frames.i_bframe_delay) % h->frames.i_bframe_delay ]
2796 : h->fenc->i_reordered_pts - h->frames.i_bframe_delay_time;
2797 prev_reordered_pts[ h->i_frame % h->frames.i_bframe_delay ] = h->fenc->i_reordered_pts;
2800 h->fdec->i_dts = h->fenc->i_reordered_pts;
2801 if( h->fenc->i_type == X264_TYPE_IDR )
2802 h->i_last_idr_pts = h->fdec->i_pts;
2804 /* ------------------- Init ----------------------------- */
2805 /* build ref list 0/1 */
2806 x264_reference_build_list( h, h->fdec->i_poc );
2808 /* ---------------------- Write the bitstream -------------------------- */
2809 /* Init bitstream context */
2810 if( h->param.b_sliced_threads )
2812 for( int i = 0; i < h->param.i_threads; i++ )
2814 bs_init( &h->thread[i]->out.bs, h->thread[i]->out.p_bitstream, h->thread[i]->out.i_bitstream );
2815 h->thread[i]->out.i_nal = 0;
2820 bs_init( &h->out.bs, h->out.p_bitstream, h->out.i_bitstream );
2824 if( h->param.b_aud )
2828 if( h->sh.i_type == SLICE_TYPE_I )
2830 else if( h->sh.i_type == SLICE_TYPE_P )
2832 else if( h->sh.i_type == SLICE_TYPE_B )
2837 x264_nal_start( h, NAL_AUD, NAL_PRIORITY_DISPOSABLE );
2838 bs_write( &h->out.bs, 3, pic_type );
2839 bs_rbsp_trailing( &h->out.bs );
2840 if( x264_nal_end( h ) )
2842 overhead += h->out.nal[h->out.i_nal-1].i_payload + NALU_OVERHEAD - (h->param.b_annexb && h->out.i_nal-1);
2845 h->i_nal_type = i_nal_type;
2846 h->i_nal_ref_idc = i_nal_ref_idc;
2848 if( h->param.b_intra_refresh )
2850 if( IS_X264_TYPE_I( h->fenc->i_type ) )
2852 h->fdec->i_frames_since_pir = 0;
2853 h->b_queued_intra_refresh = 0;
2854 /* PIR is currently only supported with ref == 1, so any intra frame effectively refreshes
2855 * the whole frame and counts as an intra refresh. */
2856 h->fdec->f_pir_position = h->mb.i_mb_width;
2858 else if( h->fenc->i_type == X264_TYPE_P )
2860 int pocdiff = (h->fdec->i_poc - h->fref[0][0]->i_poc)/2;
2861 float increment = X264_MAX( ((float)h->mb.i_mb_width-1) / h->param.i_keyint_max, 1 );
2862 h->fdec->f_pir_position = h->fref[0][0]->f_pir_position;
2863 h->fdec->i_frames_since_pir = h->fref[0][0]->i_frames_since_pir + pocdiff;
2864 if( h->fdec->i_frames_since_pir >= h->param.i_keyint_max ||
2865 (h->b_queued_intra_refresh && h->fdec->f_pir_position + 0.5 >= h->mb.i_mb_width) )
2867 h->fdec->f_pir_position = 0;
2868 h->fdec->i_frames_since_pir = 0;
2869 h->b_queued_intra_refresh = 0;
2870 h->fenc->b_keyframe = 1;
2872 h->fdec->i_pir_start_col = h->fdec->f_pir_position+0.5;
2873 h->fdec->f_pir_position += increment * pocdiff;
2874 h->fdec->i_pir_end_col = h->fdec->f_pir_position+0.5;
2875 /* If our intra refresh has reached the right side of the frame, we're done. */
2876 if( h->fdec->i_pir_end_col >= h->mb.i_mb_width - 1 )
2877 h->fdec->f_pir_position = h->mb.i_mb_width;
2881 if( h->fenc->b_keyframe )
2883 /* Write SPS and PPS */
2884 if( h->param.b_repeat_headers )
2886 /* generate sequence parameters */
2887 x264_nal_start( h, NAL_SPS, NAL_PRIORITY_HIGHEST );
2888 x264_sps_write( &h->out.bs, h->sps );
2889 if( x264_nal_end( h ) )
2891 overhead += h->out.nal[h->out.i_nal-1].i_payload + NALU_OVERHEAD;
2893 /* generate picture parameters */
2894 x264_nal_start( h, NAL_PPS, NAL_PRIORITY_HIGHEST );
2895 x264_pps_write( &h->out.bs, h->sps, h->pps );
2896 if( x264_nal_end( h ) )
2898 overhead += h->out.nal[h->out.i_nal-1].i_payload + NALU_OVERHEAD;
2901 /* when frame threading is used, buffering period sei is written in x264_encoder_frame_end */
2902 if( h->i_thread_frames == 1 && h->sps->vui.b_nal_hrd_parameters_present )
2904 x264_hrd_fullness( h );
2905 x264_nal_start( h, NAL_SEI, NAL_PRIORITY_DISPOSABLE );
2906 x264_sei_buffering_period_write( h, &h->out.bs );
2907 if( x264_nal_end( h ) )
2909 overhead += h->out.nal[h->out.i_nal-1].i_payload + NALU_OVERHEAD;
2913 /* write extra sei */
2914 for( int i = 0; i < h->fenc->extra_sei.num_payloads; i++ )
2916 x264_nal_start( h, NAL_SEI, NAL_PRIORITY_DISPOSABLE );
2917 x264_sei_write( &h->out.bs, h->fenc->extra_sei.payloads[i].payload, h->fenc->extra_sei.payloads[i].payload_size,
2918 h->fenc->extra_sei.payloads[i].payload_type );
2919 if( x264_nal_end( h ) )
2921 overhead += h->out.nal[h->out.i_nal-1].i_payload + NALU_OVERHEAD - (h->param.b_annexb && h->out.i_nal-1);
2922 if( h->fenc->extra_sei.sei_free && h->fenc->extra_sei.payloads[i].payload )
2923 h->fenc->extra_sei.sei_free( h->fenc->extra_sei.payloads[i].payload );
2926 if( h->fenc->extra_sei.sei_free && h->fenc->extra_sei.payloads )
2927 h->fenc->extra_sei.sei_free( h->fenc->extra_sei.payloads );
2929 if( h->fenc->b_keyframe )
2931 if( h->param.b_repeat_headers && h->fenc->i_frame == 0 )
2933 /* identify ourself */
2934 x264_nal_start( h, NAL_SEI, NAL_PRIORITY_DISPOSABLE );
2935 if( x264_sei_version_write( h, &h->out.bs ) )
2937 if( x264_nal_end( h ) )
2939 overhead += h->out.nal[h->out.i_nal-1].i_payload + NALU_OVERHEAD - (h->param.b_annexb && h->out.i_nal-1);
2942 if( h->fenc->i_type != X264_TYPE_IDR )
2944 int time_to_recovery = h->param.b_open_gop ? 0 : X264_MIN( h->mb.i_mb_width - 1, h->param.i_keyint_max ) + h->param.i_bframe - 1;
2945 x264_nal_start( h, NAL_SEI, NAL_PRIORITY_DISPOSABLE );
2946 x264_sei_recovery_point_write( h, &h->out.bs, time_to_recovery );
2947 if( x264_nal_end( h ) )
2949 overhead += h->out.nal[h->out.i_nal-1].i_payload + NALU_OVERHEAD - (h->param.b_annexb && h->out.i_nal-1);
2952 if ( h->param.i_frame_packing >= 0 )
2954 x264_nal_start( h, NAL_SEI, NAL_PRIORITY_DISPOSABLE );
2955 x264_sei_frame_packing_write( h, &h->out.bs );
2956 if( x264_nal_end( h ) )
2958 overhead += h->out.nal[h->out.i_nal-1].i_payload + NALU_OVERHEAD - (h->param.b_annexb && h->out.i_nal-1);
2962 /* generate sei pic timing */
2963 if( h->sps->vui.b_pic_struct_present || h->sps->vui.b_nal_hrd_parameters_present )
2965 x264_nal_start( h, NAL_SEI, NAL_PRIORITY_DISPOSABLE );
2966 x264_sei_pic_timing_write( h, &h->out.bs );
2967 if( x264_nal_end( h ) )
2969 overhead += h->out.nal[h->out.i_nal-1].i_payload + NALU_OVERHEAD - (h->param.b_annexb && h->out.i_nal-1);
2972 /* As required by Blu-ray. */
2973 if( !IS_X264_TYPE_B( h->fenc->i_type ) && h->b_sh_backup )
2976 x264_nal_start( h, NAL_SEI, NAL_PRIORITY_DISPOSABLE );
2977 x264_sei_dec_ref_pic_marking_write( h, &h->out.bs );
2978 if( x264_nal_end( h ) )
2980 overhead += h->out.nal[h->out.i_nal-1].i_payload + NALU_OVERHEAD - (h->param.b_annexb && h->out.i_nal-1);
2983 if( h->fenc->b_keyframe && h->param.b_intra_refresh )
2984 h->i_cpb_delay_pir_offset = h->fenc->i_cpb_delay;
2986 /* Init the rate control */
2987 /* FIXME: Include slice header bit cost. */
2988 x264_ratecontrol_start( h, h->fenc->i_qpplus1, overhead*8 );
2989 i_global_qp = x264_ratecontrol_qp( h );
2991 pic_out->i_qpplus1 =
2992 h->fdec->i_qpplus1 = i_global_qp + 1;
2994 if( h->param.rc.b_stat_read && h->sh.i_type != SLICE_TYPE_I )
2996 x264_reference_build_list_optimal( h );
2997 x264_reference_check_reorder( h );
3001 h->fdec->i_poc_l0ref0 = h->fref[0][0]->i_poc;
3003 /* ------------------------ Create slice header ----------------------- */
3004 x264_slice_init( h, i_nal_type, i_global_qp );
3006 /*------------------------- Weights -------------------------------------*/
3007 if( h->sh.i_type == SLICE_TYPE_B )
3008 x264_macroblock_bipred_init( h );
3010 x264_weighted_pred_init( h );
3012 if( i_nal_ref_idc != NAL_PRIORITY_DISPOSABLE )
3016 h->i_threadslice_start = 0;
3017 h->i_threadslice_end = h->mb.i_mb_height;
3018 if( h->i_thread_frames > 1 )
3020 x264_threadpool_run( h->threadpool, (void*)x264_slices_write, h );
3021 h->b_thread_active = 1;
3023 else if( h->param.b_sliced_threads )
3025 if( x264_threaded_slices_write( h ) )
3029 if( (intptr_t)x264_slices_write( h ) )
3032 return x264_encoder_frame_end( thread_oldest, thread_current, pp_nal, pi_nal, pic_out );
3035 static int x264_encoder_frame_end( x264_t *h, x264_t *thread_current,
3036 x264_nal_t **pp_nal, int *pi_nal,
3037 x264_picture_t *pic_out )
3039 char psz_message[80];
3041 if( h->b_thread_active )
3043 h->b_thread_active = 0;
3044 if( (intptr_t)x264_threadpool_wait( h->threadpool, h ) )
3049 pic_out->i_type = X264_TYPE_AUTO;
3054 /* generate buffering period sei and insert it into place */
3055 if( h->i_thread_frames > 1 && h->fenc->b_keyframe && h->sps->vui.b_nal_hrd_parameters_present )
3057 x264_hrd_fullness( h );
3058 x264_nal_start( h, NAL_SEI, NAL_PRIORITY_DISPOSABLE );
3059 x264_sei_buffering_period_write( h, &h->out.bs );
3060 if( x264_nal_end( h ) )
3062 /* buffering period sei must follow AUD, SPS and PPS and precede all other SEIs */
3064 while( h->out.nal[idx].i_type == NAL_AUD ||
3065 h->out.nal[idx].i_type == NAL_SPS ||
3066 h->out.nal[idx].i_type == NAL_PPS )
3068 x264_nal_t nal_tmp = h->out.nal[h->out.i_nal-1];
3069 memmove( &h->out.nal[idx+1], &h->out.nal[idx], (h->out.i_nal-idx-1)*sizeof(x264_nal_t) );
3070 h->out.nal[idx] = nal_tmp;
3073 int frame_size = x264_encoder_encapsulate_nals( h, 0 );
3074 if( frame_size < 0 )
3077 /* Set output picture properties */
3078 pic_out->i_type = h->fenc->i_type;
3080 pic_out->b_keyframe = h->fenc->b_keyframe;
3081 pic_out->i_pic_struct = h->fenc->i_pic_struct;
3083 pic_out->i_pts = h->fdec->i_pts;
3084 pic_out->i_dts = h->fdec->i_dts;
3086 if( pic_out->i_pts < pic_out->i_dts )
3087 x264_log( h, X264_LOG_WARNING, "invalid DTS: PTS is less than DTS\n" );
3089 pic_out->img.i_csp = h->fdec->i_csp;
3091 pic_out->img.i_csp |= X264_CSP_HIGH_DEPTH;
3093 pic_out->img.i_plane = h->fdec->i_plane;
3094 for( int i = 0; i < pic_out->img.i_plane; i++ )
3096 pic_out->img.i_stride[i] = h->fdec->i_stride[i] * sizeof(pixel);
3097 pic_out->img.plane[i] = (uint8_t*)h->fdec->plane[i];
3100 x264_frame_push_unused( thread_current, h->fenc );
3102 /* ---------------------- Update encoder state ------------------------- */
3106 if( x264_ratecontrol_end( h, frame_size * 8, &filler ) < 0 )
3109 pic_out->hrd_timing = h->fenc->hrd_timing;
3114 overhead = (FILLER_OVERHEAD - h->param.b_annexb);
3115 if( h->param.i_slice_max_size && filler > h->param.i_slice_max_size )
3117 int next_size = filler - h->param.i_slice_max_size;
3118 int overflow = X264_MAX( overhead - next_size, 0 );
3119 f = h->param.i_slice_max_size - overhead - overflow;
3122 f = X264_MAX( 0, filler - overhead );
3124 x264_nal_start( h, NAL_FILLER, NAL_PRIORITY_DISPOSABLE );
3125 x264_filler_write( h, &h->out.bs, f );
3126 if( x264_nal_end( h ) )
3128 int total_size = x264_encoder_encapsulate_nals( h, h->out.i_nal-1 );
3129 if( total_size < 0 )
3131 frame_size += total_size;
3132 filler -= total_size;
3135 /* End bitstream, set output */
3136 *pi_nal = h->out.i_nal;
3137 *pp_nal = h->out.nal;
3141 x264_noise_reduction_update( h );
3143 /* ---------------------- Compute/Print statistics --------------------- */
3144 x264_thread_sync_stat( h, h->thread[0] );
3147 h->stat.i_frame_count[h->sh.i_type]++;
3148 h->stat.i_frame_size[h->sh.i_type] += frame_size;
3149 h->stat.f_frame_qp[h->sh.i_type] += h->fdec->f_qp_avg_aq;
3151 for( int i = 0; i < X264_MBTYPE_MAX; i++ )
3152 h->stat.i_mb_count[h->sh.i_type][i] += h->stat.frame.i_mb_count[i];
3153 for( int i = 0; i < X264_PARTTYPE_MAX; i++ )
3154 h->stat.i_mb_partition[h->sh.i_type][i] += h->stat.frame.i_mb_partition[i];
3155 for( int i = 0; i < 2; i++ )
3156 h->stat.i_mb_count_8x8dct[i] += h->stat.frame.i_mb_count_8x8dct[i];
3157 for( int i = 0; i < 6; i++ )
3158 h->stat.i_mb_cbp[i] += h->stat.frame.i_mb_cbp[i];
3159 for( int i = 0; i < 4; i++ )
3160 for( int j = 0; j < 13; j++ )
3161 h->stat.i_mb_pred_mode[i][j] += h->stat.frame.i_mb_pred_mode[i][j];
3162 if( h->sh.i_type != SLICE_TYPE_I )
3163 for( int i_list = 0; i_list < 2; i_list++ )
3164 for( int i = 0; i < X264_REF_MAX*2; i++ )
3165 h->stat.i_mb_count_ref[h->sh.i_type][i_list][i] += h->stat.frame.i_mb_count_ref[i_list][i];
3166 for( int i = 0; i < 3; i++ )
3167 h->stat.i_mb_field[i] += h->stat.frame.i_mb_field[i];
3168 if( h->sh.i_type == SLICE_TYPE_P && h->param.analyse.i_weighted_pred >= X264_WEIGHTP_SIMPLE )
3170 h->stat.i_wpred[0] += !!h->sh.weight[0][0].weightfn;
3171 h->stat.i_wpred[1] += !!h->sh.weight[0][1].weightfn || !!h->sh.weight[0][2].weightfn;
3173 if( h->sh.i_type == SLICE_TYPE_B )
3175 h->stat.i_direct_frames[ h->sh.b_direct_spatial_mv_pred ] ++;
3176 if( h->mb.b_direct_auto_write )
3178 //FIXME somewhat arbitrary time constants
3179 if( h->stat.i_direct_score[0] + h->stat.i_direct_score[1] > h->mb.i_mb_count )
3180 for( int i = 0; i < 2; i++ )
3181 h->stat.i_direct_score[i] = h->stat.i_direct_score[i] * 9/10;
3182 for( int i = 0; i < 2; i++ )
3183 h->stat.i_direct_score[i] += h->stat.frame.i_direct_score[i];
3187 h->stat.i_consecutive_bframes[h->fenc->i_bframes]++;
3189 psz_message[0] = '\0';
3190 double dur = h->fenc->f_duration;
3191 h->stat.f_frame_duration[h->sh.i_type] += dur;
3192 if( h->param.analyse.b_psnr )
3196 h->stat.frame.i_ssd[0],
3197 h->stat.frame.i_ssd[1],
3198 h->stat.frame.i_ssd[2],
3200 int luma_size = h->param.i_width * h->param.i_height;
3201 int chroma_size = CHROMA_SIZE( luma_size );
3202 double psnr_y = x264_psnr( ssd[0], luma_size );
3203 double psnr_u = x264_psnr( ssd[1], chroma_size );
3204 double psnr_v = x264_psnr( ssd[2], chroma_size );
3206 h->stat.f_ssd_global[h->sh.i_type] += dur * (ssd[0] + ssd[1] + ssd[2]);
3207 h->stat.f_psnr_average[h->sh.i_type] += dur * x264_psnr( ssd[0] + ssd[1] + ssd[2], luma_size + chroma_size*2 );
3208 h->stat.f_psnr_mean_y[h->sh.i_type] += dur * psnr_y;
3209 h->stat.f_psnr_mean_u[h->sh.i_type] += dur * psnr_u;
3210 h->stat.f_psnr_mean_v[h->sh.i_type] += dur * psnr_v;
3212 snprintf( psz_message, 80, " PSNR Y:%5.2f U:%5.2f V:%5.2f", psnr_y, psnr_u, psnr_v );
3215 if( h->param.analyse.b_ssim )
3217 double ssim_y = h->stat.frame.f_ssim
3218 / h->stat.frame.i_ssim_cnt;
3219 h->stat.f_ssim_mean_y[h->sh.i_type] += ssim_y * dur;
3220 snprintf( psz_message + strlen(psz_message), 80 - strlen(psz_message),
3221 " SSIM Y:%.5f", ssim_y );
3223 psz_message[79] = '\0';
3225 x264_log( h, X264_LOG_DEBUG,
3226 "frame=%4d QP=%.2f NAL=%d Slice:%c Poc:%-3d I:%-4d P:%-4d SKIP:%-4d size=%d bytes%s\n",
3228 h->fdec->f_qp_avg_aq,
3230 h->sh.i_type == SLICE_TYPE_I ? 'I' : (h->sh.i_type == SLICE_TYPE_P ? 'P' : 'B' ),
3232 h->stat.frame.i_mb_count_i,
3233 h->stat.frame.i_mb_count_p,
3234 h->stat.frame.i_mb_count_skip,
3238 // keep stats all in one place
3239 x264_thread_sync_stat( h->thread[0], h );
3240 // for the use of the next frame
3241 x264_thread_sync_stat( thread_current, h );
3243 #ifdef DEBUG_MB_TYPE
3245 static const char mb_chars[] = { 'i', 'i', 'I', 'C', 'P', '8', 'S',
3246 'D', '<', 'X', 'B', 'X', '>', 'B', 'B', 'B', 'B', '8', 'S' };
3247 for( int mb_xy = 0; mb_xy < h->mb.i_mb_width * h->mb.i_mb_height; mb_xy++ )
3249 if( h->mb.type[mb_xy] < X264_MBTYPE_MAX && h->mb.type[mb_xy] >= 0 )
3250 fprintf( stderr, "%c ", mb_chars[ h->mb.type[mb_xy] ] );
3252 fprintf( stderr, "? " );
3254 if( (mb_xy+1) % h->mb.i_mb_width == 0 )
3255 fprintf( stderr, "\n" );
3260 /* Remove duplicates, must be done near the end as breaks h->fref0 array
3261 * by freeing some of its pointers. */
3262 for( int i = 0; i < h->i_ref[0]; i++ )
3263 if( h->fref[0][i] && h->fref[0][i]->b_duplicate )
3265 x264_frame_push_blank_unused( h, h->fref[0][i] );
3269 if( h->param.psz_dump_yuv )
3270 x264_frame_dump( h );
3276 static void x264_print_intra( int64_t *i_mb_count, double i_count, int b_print_pcm, char *intra )
3278 intra += sprintf( intra, "I16..4%s: %4.1f%% %4.1f%% %4.1f%%",
3279 b_print_pcm ? "..PCM" : "",
3280 i_mb_count[I_16x16]/ i_count,
3281 i_mb_count[I_8x8] / i_count,
3282 i_mb_count[I_4x4] / i_count );
3284 sprintf( intra, " %4.1f%%", i_mb_count[I_PCM] / i_count );
3287 /****************************************************************************
3288 * x264_encoder_close:
3289 ****************************************************************************/
3290 void x264_encoder_close ( x264_t *h )
3292 int64_t i_yuv_size = FRAME_SIZE( h->param.i_width * h->param.i_height );
3293 int64_t i_mb_count_size[2][7] = {{0}};
3295 int b_print_pcm = h->stat.i_mb_count[SLICE_TYPE_I][I_PCM]
3296 || h->stat.i_mb_count[SLICE_TYPE_P][I_PCM]
3297 || h->stat.i_mb_count[SLICE_TYPE_B][I_PCM];
3299 x264_lookahead_delete( h );
3301 if( h->param.i_threads > 1 )
3302 x264_threadpool_delete( h->threadpool );
3303 if( h->i_thread_frames > 1 )
3305 for( int i = 0; i < h->i_thread_frames; i++ )
3306 if( h->thread[i]->b_thread_active )
3308 assert( h->thread[i]->fenc->i_reference_count == 1 );
3309 x264_frame_delete( h->thread[i]->fenc );
3312 x264_t *thread_prev = h->thread[h->i_thread_phase];
3313 x264_thread_sync_ratecontrol( h, thread_prev, h );
3314 x264_thread_sync_ratecontrol( thread_prev, thread_prev, h );
3315 h->i_frame = thread_prev->i_frame + 1 - h->i_thread_frames;
3319 /* Slices used and PSNR */
3320 for( int i = 0; i < 3; i++ )
3322 static const uint8_t slice_order[] = { SLICE_TYPE_I, SLICE_TYPE_P, SLICE_TYPE_B };
3323 int i_slice = slice_order[i];
3325 if( h->stat.i_frame_count[i_slice] > 0 )
3327 int i_count = h->stat.i_frame_count[i_slice];
3328 double dur = h->stat.f_frame_duration[i_slice];
3329 if( h->param.analyse.b_psnr )
3331 x264_log( h, X264_LOG_INFO,
3332 "frame %c:%-5d Avg QP:%5.2f size:%6.0f PSNR Mean Y:%5.2f U:%5.2f V:%5.2f Avg:%5.2f Global:%5.2f\n",
3333 slice_type_to_char[i_slice],
3335 h->stat.f_frame_qp[i_slice] / i_count,
3336 (double)h->stat.i_frame_size[i_slice] / i_count,
3337 h->stat.f_psnr_mean_y[i_slice] / dur, h->stat.f_psnr_mean_u[i_slice] / dur, h->stat.f_psnr_mean_v[i_slice] / dur,
3338 h->stat.f_psnr_average[i_slice] / dur,
3339 x264_psnr( h->stat.f_ssd_global[i_slice], dur * i_yuv_size ) );
3343 x264_log( h, X264_LOG_INFO,
3344 "frame %c:%-5d Avg QP:%5.2f size:%6.0f\n",
3345 slice_type_to_char[i_slice],
3347 h->stat.f_frame_qp[i_slice] / i_count,
3348 (double)h->stat.i_frame_size[i_slice] / i_count );
3352 if( h->param.i_bframe && h->stat.i_frame_count[SLICE_TYPE_B] )
3356 // weight by number of frames (including the I/P-frames) that are in a sequence of N B-frames
3357 for( int i = 0; i <= h->param.i_bframe; i++ )
3358 den += (i+1) * h->stat.i_consecutive_bframes[i];
3359 for( int i = 0; i <= h->param.i_bframe; i++ )
3360 p += sprintf( p, " %4.1f%%", 100. * (i+1) * h->stat.i_consecutive_bframes[i] / den );
3361 x264_log( h, X264_LOG_INFO, "consecutive B-frames:%s\n", buf );
3364 for( int i_type = 0; i_type < 2; i_type++ )
3365 for( int i = 0; i < X264_PARTTYPE_MAX; i++ )
3367 if( i == D_DIRECT_8x8 ) continue; /* direct is counted as its own type */
3368 i_mb_count_size[i_type][x264_mb_partition_pixel_table[i]] += h->stat.i_mb_partition[i_type][i];
3372 if( h->stat.i_frame_count[SLICE_TYPE_I] > 0 )
3374 int64_t *i_mb_count = h->stat.i_mb_count[SLICE_TYPE_I];
3375 double i_count = h->stat.i_frame_count[SLICE_TYPE_I] * h->mb.i_mb_count / 100.0;
3376 x264_print_intra( i_mb_count, i_count, b_print_pcm, buf );
3377 x264_log( h, X264_LOG_INFO, "mb I %s\n", buf );
3379 if( h->stat.i_frame_count[SLICE_TYPE_P] > 0 )
3381 int64_t *i_mb_count = h->stat.i_mb_count[SLICE_TYPE_P];
3382 double i_count = h->stat.i_frame_count[SLICE_TYPE_P] * h->mb.i_mb_count / 100.0;
3383 int64_t *i_mb_size = i_mb_count_size[SLICE_TYPE_P];
3384 x264_print_intra( i_mb_count, i_count, b_print_pcm, buf );
3385 x264_log( h, X264_LOG_INFO,
3386 "mb P %s P16..4: %4.1f%% %4.1f%% %4.1f%% %4.1f%% %4.1f%% skip:%4.1f%%\n",
3388 i_mb_size[PIXEL_16x16] / (i_count*4),
3389 (i_mb_size[PIXEL_16x8] + i_mb_size[PIXEL_8x16]) / (i_count*4),
3390 i_mb_size[PIXEL_8x8] / (i_count*4),
3391 (i_mb_size[PIXEL_8x4] + i_mb_size[PIXEL_4x8]) / (i_count*4),
3392 i_mb_size[PIXEL_4x4] / (i_count*4),
3393 i_mb_count[P_SKIP] / i_count );
3395 if( h->stat.i_frame_count[SLICE_TYPE_B] > 0 )
3397 int64_t *i_mb_count = h->stat.i_mb_count[SLICE_TYPE_B];
3398 double i_count = h->stat.i_frame_count[SLICE_TYPE_B] * h->mb.i_mb_count / 100.0;
3399 double i_mb_list_count;
3400 int64_t *i_mb_size = i_mb_count_size[SLICE_TYPE_B];
3401 int64_t list_count[3] = {0}; /* 0 == L0, 1 == L1, 2 == BI */
3402 x264_print_intra( i_mb_count, i_count, b_print_pcm, buf );
3403 for( int i = 0; i < X264_PARTTYPE_MAX; i++ )
3404 for( int j = 0; j < 2; j++ )
3406 int l0 = x264_mb_type_list_table[i][0][j];
3407 int l1 = x264_mb_type_list_table[i][1][j];
3409 list_count[l1+l0*l1] += h->stat.i_mb_count[SLICE_TYPE_B][i] * 2;
3411 list_count[0] += h->stat.i_mb_partition[SLICE_TYPE_B][D_L0_8x8];
3412 list_count[1] += h->stat.i_mb_partition[SLICE_TYPE_B][D_L1_8x8];
3413 list_count[2] += h->stat.i_mb_partition[SLICE_TYPE_B][D_BI_8x8];
3414 i_mb_count[B_DIRECT] += (h->stat.i_mb_partition[SLICE_TYPE_B][D_DIRECT_8x8]+2)/4;
3415 i_mb_list_count = (list_count[0] + list_count[1] + list_count[2]) / 100.0;
3416 sprintf( buf + strlen(buf), " B16..8: %4.1f%% %4.1f%% %4.1f%% direct:%4.1f%% skip:%4.1f%%",
3417 i_mb_size[PIXEL_16x16] / (i_count*4),
3418 (i_mb_size[PIXEL_16x8] + i_mb_size[PIXEL_8x16]) / (i_count*4),
3419 i_mb_size[PIXEL_8x8] / (i_count*4),
3420 i_mb_count[B_DIRECT] / i_count,
3421 i_mb_count[B_SKIP] / i_count );
3422 if( i_mb_list_count != 0 )
3423 sprintf( buf + strlen(buf), " L0:%4.1f%% L1:%4.1f%% BI:%4.1f%%",
3424 list_count[0] / i_mb_list_count,
3425 list_count[1] / i_mb_list_count,
3426 list_count[2] / i_mb_list_count );
3427 x264_log( h, X264_LOG_INFO, "mb B %s\n", buf );
3430 x264_ratecontrol_summary( h );
3432 if( h->stat.i_frame_count[SLICE_TYPE_I] + h->stat.i_frame_count[SLICE_TYPE_P] + h->stat.i_frame_count[SLICE_TYPE_B] > 0 )
3434 #define SUM3(p) (p[SLICE_TYPE_I] + p[SLICE_TYPE_P] + p[SLICE_TYPE_B])
3435 #define SUM3b(p,o) (p[SLICE_TYPE_I][o] + p[SLICE_TYPE_P][o] + p[SLICE_TYPE_B][o])
3436 int64_t i_i8x8 = SUM3b( h->stat.i_mb_count, I_8x8 );
3437 int64_t i_intra = i_i8x8 + SUM3b( h->stat.i_mb_count, I_4x4 )
3438 + SUM3b( h->stat.i_mb_count, I_16x16 );
3439 int64_t i_all_intra = i_intra + SUM3b( h->stat.i_mb_count, I_PCM);
3440 int64_t i_skip = SUM3b( h->stat.i_mb_count, P_SKIP )
3441 + SUM3b( h->stat.i_mb_count, B_SKIP );
3442 const int i_count = h->stat.i_frame_count[SLICE_TYPE_I] +
3443 h->stat.i_frame_count[SLICE_TYPE_P] +
3444 h->stat.i_frame_count[SLICE_TYPE_B];
3445 int64_t i_mb_count = (int64_t)i_count * h->mb.i_mb_count;
3446 int64_t i_inter = i_mb_count - i_skip - i_intra;
3447 const double duration = h->stat.f_frame_duration[SLICE_TYPE_I] +
3448 h->stat.f_frame_duration[SLICE_TYPE_P] +
3449 h->stat.f_frame_duration[SLICE_TYPE_B];
3450 float f_bitrate = SUM3(h->stat.i_frame_size) / duration / 125;
3452 if( PARAM_INTERLACED )
3454 char *fieldstats = buf;
3457 fieldstats += sprintf( fieldstats, " inter:%.1f%%", h->stat.i_mb_field[1] * 100.0 / i_inter );
3459 fieldstats += sprintf( fieldstats, " skip:%.1f%%", h->stat.i_mb_field[2] * 100.0 / i_skip );
3460 x264_log( h, X264_LOG_INFO, "field mbs: intra: %.1f%%%s\n",
3461 h->stat.i_mb_field[0] * 100.0 / i_intra, buf );
3464 if( h->pps->b_transform_8x8_mode )
3467 if( h->stat.i_mb_count_8x8dct[0] )
3468 sprintf( buf, " inter:%.1f%%", 100. * h->stat.i_mb_count_8x8dct[1] / h->stat.i_mb_count_8x8dct[0] );
3469 x264_log( h, X264_LOG_INFO, "8x8 transform intra:%.1f%%%s\n", 100. * i_i8x8 / i_intra, buf );
3472 if( (h->param.analyse.i_direct_mv_pred == X264_DIRECT_PRED_AUTO ||
3473 (h->stat.i_direct_frames[0] && h->stat.i_direct_frames[1]))
3474 && h->stat.i_frame_count[SLICE_TYPE_B] )
3476 x264_log( h, X264_LOG_INFO, "direct mvs spatial:%.1f%% temporal:%.1f%%\n",
3477 h->stat.i_direct_frames[1] * 100. / h->stat.i_frame_count[SLICE_TYPE_B],
3478 h->stat.i_direct_frames[0] * 100. / h->stat.i_frame_count[SLICE_TYPE_B] );
3482 int csize = CHROMA444 ? 4 : 1;
3483 if( i_mb_count != i_all_intra )
3484 sprintf( buf, " inter: %.1f%% %.1f%% %.1f%%",
3485 h->stat.i_mb_cbp[1] * 100.0 / ((i_mb_count - i_all_intra)*4),
3486 h->stat.i_mb_cbp[3] * 100.0 / ((i_mb_count - i_all_intra)*csize),
3487 h->stat.i_mb_cbp[5] * 100.0 / ((i_mb_count - i_all_intra)*csize) );
3488 x264_log( h, X264_LOG_INFO, "coded y,%s,%s intra: %.1f%% %.1f%% %.1f%%%s\n",
3489 CHROMA444?"u":"uvDC", CHROMA444?"v":"uvAC",
3490 h->stat.i_mb_cbp[0] * 100.0 / (i_all_intra*4),
3491 h->stat.i_mb_cbp[2] * 100.0 / (i_all_intra*csize),
3492 h->stat.i_mb_cbp[4] * 100.0 / (i_all_intra*csize), buf );
3494 int64_t fixed_pred_modes[4][9] = {{0}};
3495 int64_t sum_pred_modes[4] = {0};
3496 for( int i = 0; i <= I_PRED_16x16_DC_128; i++ )
3498 fixed_pred_modes[0][x264_mb_pred_mode16x16_fix[i]] += h->stat.i_mb_pred_mode[0][i];
3499 sum_pred_modes[0] += h->stat.i_mb_pred_mode[0][i];
3501 if( sum_pred_modes[0] )
3502 x264_log( h, X264_LOG_INFO, "i16 v,h,dc,p: %2.0f%% %2.0f%% %2.0f%% %2.0f%%\n",
3503 fixed_pred_modes[0][0] * 100.0 / sum_pred_modes[0],
3504 fixed_pred_modes[0][1] * 100.0 / sum_pred_modes[0],
3505 fixed_pred_modes[0][2] * 100.0 / sum_pred_modes[0],
3506 fixed_pred_modes[0][3] * 100.0 / sum_pred_modes[0] );
3507 for( int i = 1; i <= 2; i++ )
3509 for( int j = 0; j <= I_PRED_8x8_DC_128; j++ )
3511 fixed_pred_modes[i][x264_mb_pred_mode4x4_fix(j)] += h->stat.i_mb_pred_mode[i][j];
3512 sum_pred_modes[i] += h->stat.i_mb_pred_mode[i][j];
3514 if( sum_pred_modes[i] )
3515 x264_log( h, X264_LOG_INFO, "i%d v,h,dc,ddl,ddr,vr,hd,vl,hu: %2.0f%% %2.0f%% %2.0f%% %2.0f%% %2.0f%% %2.0f%% %2.0f%% %2.0f%% %2.0f%%\n", (3-i)*4,
3516 fixed_pred_modes[i][0] * 100.0 / sum_pred_modes[i],
3517 fixed_pred_modes[i][1] * 100.0 / sum_pred_modes[i],
3518 fixed_pred_modes[i][2] * 100.0 / sum_pred_modes[i],
3519 fixed_pred_modes[i][3] * 100.0 / sum_pred_modes[i],
3520 fixed_pred_modes[i][4] * 100.0 / sum_pred_modes[i],
3521 fixed_pred_modes[i][5] * 100.0 / sum_pred_modes[i],
3522 fixed_pred_modes[i][6] * 100.0 / sum_pred_modes[i],
3523 fixed_pred_modes[i][7] * 100.0 / sum_pred_modes[i],
3524 fixed_pred_modes[i][8] * 100.0 / sum_pred_modes[i] );
3526 for( int i = 0; i <= I_PRED_CHROMA_DC_128; i++ )
3528 fixed_pred_modes[3][x264_mb_chroma_pred_mode_fix[i]] += h->stat.i_mb_pred_mode[3][i];
3529 sum_pred_modes[3] += h->stat.i_mb_pred_mode[3][i];
3531 if( sum_pred_modes[3] && !CHROMA444 )
3532 x264_log( h, X264_LOG_INFO, "i8c dc,h,v,p: %2.0f%% %2.0f%% %2.0f%% %2.0f%%\n",
3533 fixed_pred_modes[3][0] * 100.0 / sum_pred_modes[3],
3534 fixed_pred_modes[3][1] * 100.0 / sum_pred_modes[3],
3535 fixed_pred_modes[3][2] * 100.0 / sum_pred_modes[3],
3536 fixed_pred_modes[3][3] * 100.0 / sum_pred_modes[3] );
3538 if( h->param.analyse.i_weighted_pred >= X264_WEIGHTP_SIMPLE && h->stat.i_frame_count[SLICE_TYPE_P] > 0 )
3539 x264_log( h, X264_LOG_INFO, "Weighted P-Frames: Y:%.1f%% UV:%.1f%%\n",
3540 h->stat.i_wpred[0] * 100.0 / h->stat.i_frame_count[SLICE_TYPE_P],
3541 h->stat.i_wpred[1] * 100.0 / h->stat.i_frame_count[SLICE_TYPE_P] );
3543 for( int i_list = 0; i_list < 2; i_list++ )
3544 for( int i_slice = 0; i_slice < 2; i_slice++ )
3549 for( int i = 0; i < X264_REF_MAX*2; i++ )
3550 if( h->stat.i_mb_count_ref[i_slice][i_list][i] )
3552 i_den += h->stat.i_mb_count_ref[i_slice][i_list][i];
3557 for( int i = 0; i <= i_max; i++ )
3558 p += sprintf( p, " %4.1f%%", 100. * h->stat.i_mb_count_ref[i_slice][i_list][i] / i_den );
3559 x264_log( h, X264_LOG_INFO, "ref %c L%d:%s\n", "PB"[i_slice], i_list, buf );
3562 if( h->param.analyse.b_ssim )
3564 float ssim = SUM3( h->stat.f_ssim_mean_y ) / duration;
3565 x264_log( h, X264_LOG_INFO, "SSIM Mean Y:%.7f (%6.3fdb)\n", ssim, x264_ssim( ssim ) );
3567 if( h->param.analyse.b_psnr )
3569 x264_log( h, X264_LOG_INFO,
3570 "PSNR Mean Y:%6.3f U:%6.3f V:%6.3f Avg:%6.3f Global:%6.3f kb/s:%.2f\n",
3571 SUM3( h->stat.f_psnr_mean_y ) / duration,
3572 SUM3( h->stat.f_psnr_mean_u ) / duration,
3573 SUM3( h->stat.f_psnr_mean_v ) / duration,
3574 SUM3( h->stat.f_psnr_average ) / duration,
3575 x264_psnr( SUM3( h->stat.f_ssd_global ), duration * i_yuv_size ),
3579 x264_log( h, X264_LOG_INFO, "kb/s:%.2f\n", f_bitrate );
3583 x264_ratecontrol_delete( h );
3586 if( h->param.rc.psz_stat_out )
3587 free( h->param.rc.psz_stat_out );
3588 if( h->param.rc.psz_stat_in )
3589 free( h->param.rc.psz_stat_in );
3591 x264_cqm_delete( h );
3592 x264_free( h->nal_buffer );
3593 x264_analyse_free_costs( h );
3595 if( h->i_thread_frames > 1)
3596 h = h->thread[h->i_thread_phase];
3599 x264_frame_delete_list( h->frames.unused[0] );
3600 x264_frame_delete_list( h->frames.unused[1] );
3601 x264_frame_delete_list( h->frames.current );
3602 x264_frame_delete_list( h->frames.blank_unused );
3606 for( int i = 0; i < h->i_thread_frames; i++ )
3607 if( h->thread[i]->b_thread_active )
3608 for( int j = 0; j < h->thread[i]->i_ref[0]; j++ )
3609 if( h->thread[i]->fref[0][j] && h->thread[i]->fref[0][j]->b_duplicate )
3610 x264_frame_delete( h->thread[i]->fref[0][j] );
3612 for( int i = h->param.i_threads - 1; i >= 0; i-- )
3614 x264_frame_t **frame;
3616 if( !h->param.b_sliced_threads || i == 0 )
3618 for( frame = h->thread[i]->frames.reference; *frame; frame++ )
3620 assert( (*frame)->i_reference_count > 0 );
3621 (*frame)->i_reference_count--;
3622 if( (*frame)->i_reference_count == 0 )
3623 x264_frame_delete( *frame );
3625 frame = &h->thread[i]->fdec;
3628 assert( (*frame)->i_reference_count > 0 );
3629 (*frame)->i_reference_count--;
3630 if( (*frame)->i_reference_count == 0 )
3631 x264_frame_delete( *frame );
3633 x264_macroblock_cache_free( h->thread[i] );
3635 x264_macroblock_thread_free( h->thread[i], 0 );
3636 x264_free( h->thread[i]->out.p_bitstream );
3637 x264_free( h->thread[i]->out.nal);
3638 x264_free( h->thread[i] );
3642 int x264_encoder_delayed_frames( x264_t *h )
3644 int delayed_frames = 0;
3645 if( h->i_thread_frames > 1 )
3647 for( int i = 0; i < h->i_thread_frames; i++ )
3648 delayed_frames += h->thread[i]->b_thread_active;
3649 h = h->thread[h->i_thread_phase];
3651 for( int i = 0; h->frames.current[i]; i++ )
3653 x264_pthread_mutex_lock( &h->lookahead->ofbuf.mutex );
3654 x264_pthread_mutex_lock( &h->lookahead->ifbuf.mutex );
3655 x264_pthread_mutex_lock( &h->lookahead->next.mutex );
3656 delayed_frames += h->lookahead->ifbuf.i_size + h->lookahead->next.i_size + h->lookahead->ofbuf.i_size;
3657 x264_pthread_mutex_unlock( &h->lookahead->next.mutex );
3658 x264_pthread_mutex_unlock( &h->lookahead->ifbuf.mutex );
3659 x264_pthread_mutex_unlock( &h->lookahead->ofbuf.mutex );
3660 return delayed_frames;
3663 int x264_encoder_maximum_delayed_frames( x264_t *h )
3665 return h->frames.i_delay;