1 /*****************************************************************************
3 *****************************************************************************
4 * Copyright (C) 2003-2008 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.
23 *****************************************************************************/
27 #include "common/common.h"
31 #include "ratecontrol.h"
32 #include "macroblock.h"
36 #include "common/visualize.h"
39 //#define DEBUG_MB_TYPE
41 #define bs_write_ue bs_write_ue_big
43 static int x264_encoder_frame_end( x264_t *h, x264_t *thread_current,
44 x264_nal_t **pp_nal, int *pi_nal,
45 x264_picture_t *pic_out );
47 /****************************************************************************
49 ******************************* x264 libs **********************************
51 ****************************************************************************/
52 static float x264_psnr( int64_t i_sqe, int64_t i_size )
54 double f_mse = (double)i_sqe / (PIXEL_MAX*PIXEL_MAX * (double)i_size);
55 if( f_mse <= 0.0000000001 ) /* Max 100dB */
58 return -10.0 * log10( f_mse );
61 static float x264_ssim( float ssim )
63 return -10.0 * log10( 1 - ssim );
66 static void x264_frame_dump( x264_t *h )
68 FILE *f = fopen( h->param.psz_dump_yuv, "r+b" );
71 int bytes_per_pixel = (BIT_DEPTH+7)/8;
72 /* Write the frame in display order */
73 fseek( f, (uint64_t)h->fdec->i_frame * h->param.i_height * h->param.i_width * 3/2 * bytes_per_pixel, SEEK_SET );
74 for( int i = 0; i < h->fdec->i_plane; i++ )
75 for( int y = 0; y < h->param.i_height >> !!i; y++ )
76 for( int j = 0; j < h->param.i_width >> !!i; j++ )
77 fwrite( &h->fdec->plane[i][y*h->fdec->i_stride[i]]+j, bytes_per_pixel, 1, f );
82 /* Fill "default" values */
83 static void x264_slice_header_init( x264_t *h, x264_slice_header_t *sh,
84 x264_sps_t *sps, x264_pps_t *pps,
85 int i_idr_pic_id, int i_frame, int i_qp )
87 x264_param_t *param = &h->param;
89 /* First we fill all fields */
94 sh->i_last_mb = h->mb.i_mb_count - 1;
95 sh->i_pps_id = pps->i_id;
97 sh->i_frame_num = i_frame;
99 sh->b_mbaff = h->param.b_interlaced;
100 sh->b_field_pic = 0; /* no field support for now */
101 sh->b_bottom_field = 0; /* not yet used */
103 sh->i_idr_pic_id = i_idr_pic_id;
105 /* poc stuff, fixed later */
107 sh->i_delta_poc_bottom = 0;
108 sh->i_delta_poc[0] = 0;
109 sh->i_delta_poc[1] = 0;
111 sh->i_redundant_pic_cnt = 0;
113 h->mb.b_direct_auto_write = h->param.analyse.i_direct_mv_pred == X264_DIRECT_PRED_AUTO
115 && ( h->param.rc.b_stat_write || !h->param.rc.b_stat_read );
117 if( !h->mb.b_direct_auto_read && sh->i_type == SLICE_TYPE_B )
119 if( h->fref1[0]->i_poc_l0ref0 == h->fref0[0]->i_poc )
121 if( h->mb.b_direct_auto_write )
122 sh->b_direct_spatial_mv_pred = ( h->stat.i_direct_score[1] > h->stat.i_direct_score[0] );
124 sh->b_direct_spatial_mv_pred = ( param->analyse.i_direct_mv_pred == X264_DIRECT_PRED_SPATIAL );
128 h->mb.b_direct_auto_write = 0;
129 sh->b_direct_spatial_mv_pred = 1;
132 /* else b_direct_spatial_mv_pred was read from the 2pass statsfile */
134 sh->b_num_ref_idx_override = 0;
135 sh->i_num_ref_idx_l0_active = 1;
136 sh->i_num_ref_idx_l1_active = 1;
138 sh->b_ref_pic_list_reordering_l0 = h->b_ref_reorder[0];
139 sh->b_ref_pic_list_reordering_l1 = h->b_ref_reorder[1];
141 /* If the ref list isn't in the default order, construct reordering header */
142 /* List1 reordering isn't needed yet */
143 if( sh->b_ref_pic_list_reordering_l0 )
145 int pred_frame_num = i_frame;
146 for( int i = 0; i < h->i_ref0; i++ )
148 int diff = h->fref0[i]->i_frame_num - pred_frame_num;
149 sh->ref_pic_list_order[0][i].idc = ( diff > 0 );
150 sh->ref_pic_list_order[0][i].arg = (abs(diff) - 1) & ((1 << sps->i_log2_max_frame_num) - 1);
151 pred_frame_num = h->fref0[i]->i_frame_num;
155 sh->i_cabac_init_idc = param->i_cabac_init_idc;
158 sh->i_qp_delta = i_qp - pps->i_pic_init_qp;
159 sh->b_sp_for_swidth = 0;
162 int deblock_thresh = i_qp + 2 * X264_MIN(param->i_deblocking_filter_alphac0, param->i_deblocking_filter_beta);
163 /* If effective qp <= 15, deblocking would have no effect anyway */
164 if( param->b_deblocking_filter && (h->mb.b_variable_qp || 15 < deblock_thresh ) )
165 sh->i_disable_deblocking_filter_idc = param->b_sliced_threads ? 2 : 0;
167 sh->i_disable_deblocking_filter_idc = 1;
168 sh->i_alpha_c0_offset = param->i_deblocking_filter_alphac0 << 1;
169 sh->i_beta_offset = param->i_deblocking_filter_beta << 1;
172 static void x264_slice_header_write( bs_t *s, x264_slice_header_t *sh, int i_nal_ref_idc )
176 assert( sh->i_first_mb % (2*sh->sps->i_mb_width) == 0 );
177 bs_write_ue( s, sh->i_first_mb >> 1 );
180 bs_write_ue( s, sh->i_first_mb );
182 bs_write_ue( s, sh->i_type + 5 ); /* same type things */
183 bs_write_ue( s, sh->i_pps_id );
184 bs_write( s, sh->sps->i_log2_max_frame_num, sh->i_frame_num & ((1<<sh->sps->i_log2_max_frame_num)-1) );
186 if( !sh->sps->b_frame_mbs_only )
188 bs_write1( s, sh->b_field_pic );
189 if( sh->b_field_pic )
190 bs_write1( s, sh->b_bottom_field );
193 if( sh->i_idr_pic_id >= 0 ) /* NAL IDR */
194 bs_write_ue( s, sh->i_idr_pic_id );
196 if( sh->sps->i_poc_type == 0 )
198 bs_write( s, sh->sps->i_log2_max_poc_lsb, sh->i_poc & ((1<<sh->sps->i_log2_max_poc_lsb)-1) );
199 if( sh->pps->b_pic_order && !sh->b_field_pic )
200 bs_write_se( s, sh->i_delta_poc_bottom );
202 else if( sh->sps->i_poc_type == 1 && !sh->sps->b_delta_pic_order_always_zero )
204 bs_write_se( s, sh->i_delta_poc[0] );
205 if( sh->pps->b_pic_order && !sh->b_field_pic )
206 bs_write_se( s, sh->i_delta_poc[1] );
209 if( sh->pps->b_redundant_pic_cnt )
210 bs_write_ue( s, sh->i_redundant_pic_cnt );
212 if( sh->i_type == SLICE_TYPE_B )
213 bs_write1( s, sh->b_direct_spatial_mv_pred );
215 if( sh->i_type == SLICE_TYPE_P || sh->i_type == SLICE_TYPE_SP || sh->i_type == SLICE_TYPE_B )
217 bs_write1( s, sh->b_num_ref_idx_override );
218 if( sh->b_num_ref_idx_override )
220 bs_write_ue( s, sh->i_num_ref_idx_l0_active - 1 );
221 if( sh->i_type == SLICE_TYPE_B )
222 bs_write_ue( s, sh->i_num_ref_idx_l1_active - 1 );
226 /* ref pic list reordering */
227 if( sh->i_type != SLICE_TYPE_I )
229 bs_write1( s, sh->b_ref_pic_list_reordering_l0 );
230 if( sh->b_ref_pic_list_reordering_l0 )
232 for( int i = 0; i < sh->i_num_ref_idx_l0_active; i++ )
234 bs_write_ue( s, sh->ref_pic_list_order[0][i].idc );
235 bs_write_ue( s, sh->ref_pic_list_order[0][i].arg );
240 if( sh->i_type == SLICE_TYPE_B )
242 bs_write1( s, sh->b_ref_pic_list_reordering_l1 );
243 if( sh->b_ref_pic_list_reordering_l1 )
245 for( int i = 0; i < sh->i_num_ref_idx_l1_active; i++ )
247 bs_write_ue( s, sh->ref_pic_list_order[1][i].idc );
248 bs_write_ue( s, sh->ref_pic_list_order[1][i].arg );
254 if( sh->pps->b_weighted_pred && ( sh->i_type == SLICE_TYPE_P || sh->i_type == SLICE_TYPE_SP ) )
256 /* pred_weight_table() */
257 bs_write_ue( s, sh->weight[0][0].i_denom );
258 bs_write_ue( s, sh->weight[0][1].i_denom );
259 for( int i = 0; i < sh->i_num_ref_idx_l0_active; i++ )
261 int luma_weight_l0_flag = !!sh->weight[i][0].weightfn;
262 int chroma_weight_l0_flag = !!sh->weight[i][1].weightfn || !!sh->weight[i][2].weightfn;
263 bs_write1( s, luma_weight_l0_flag );
264 if( luma_weight_l0_flag )
266 bs_write_se( s, sh->weight[i][0].i_scale );
267 bs_write_se( s, sh->weight[i][0].i_offset );
269 bs_write1( s, chroma_weight_l0_flag );
270 if( chroma_weight_l0_flag )
272 for( int j = 1; j < 3; j++ )
274 bs_write_se( s, sh->weight[i][j].i_scale );
275 bs_write_se( s, sh->weight[i][j].i_offset );
280 else if( sh->pps->b_weighted_bipred == 1 && sh->i_type == SLICE_TYPE_B )
285 if( i_nal_ref_idc != 0 )
287 if( sh->i_idr_pic_id >= 0 )
289 bs_write1( s, 0 ); /* no output of prior pics flag */
290 bs_write1( s, 0 ); /* long term reference flag */
294 bs_write1( s, sh->i_mmco_command_count > 0 ); /* adaptive_ref_pic_marking_mode_flag */
295 if( sh->i_mmco_command_count > 0 )
297 for( int i = 0; i < sh->i_mmco_command_count; i++ )
299 bs_write_ue( s, 1 ); /* mark short term ref as unused */
300 bs_write_ue( s, sh->mmco[i].i_difference_of_pic_nums - 1 );
302 bs_write_ue( s, 0 ); /* end command list */
307 if( sh->pps->b_cabac && sh->i_type != SLICE_TYPE_I )
308 bs_write_ue( s, sh->i_cabac_init_idc );
310 bs_write_se( s, sh->i_qp_delta ); /* slice qp delta */
312 if( sh->pps->b_deblocking_filter_control )
314 bs_write_ue( s, sh->i_disable_deblocking_filter_idc );
315 if( sh->i_disable_deblocking_filter_idc != 1 )
317 bs_write_se( s, sh->i_alpha_c0_offset >> 1 );
318 bs_write_se( s, sh->i_beta_offset >> 1 );
323 /* If we are within a reasonable distance of the end of the memory allocated for the bitstream, */
324 /* reallocate, adding an arbitrary amount of space (100 kilobytes). */
325 static int x264_bitstream_check_buffer( x264_t *h )
327 uint8_t *bs_bak = h->out.p_bitstream;
328 if( (h->param.b_cabac && (h->cabac.p_end - h->cabac.p < 2500)) ||
329 (h->out.bs.p_end - h->out.bs.p < 2500) )
331 h->out.i_bitstream += 100000;
332 CHECKED_MALLOC( h->out.p_bitstream, h->out.i_bitstream );
333 h->mc.memcpy_aligned( h->out.p_bitstream, bs_bak, (h->out.i_bitstream - 100000) & ~15 );
334 intptr_t delta = h->out.p_bitstream - bs_bak;
336 h->out.bs.p_start += delta;
337 h->out.bs.p += delta;
338 h->out.bs.p_end = h->out.p_bitstream + h->out.i_bitstream;
340 h->cabac.p_start += delta;
342 h->cabac.p_end = h->out.p_bitstream + h->out.i_bitstream;
344 for( int i = 0; i <= h->out.i_nal; i++ )
345 h->out.nal[i].p_payload += delta;
355 static void x264_encoder_thread_init( x264_t *h )
357 if( h->param.i_sync_lookahead )
358 x264_lower_thread_priority( 10 );
361 /* Misalign mask has to be set separately for each thread. */
362 if( h->param.cpu&X264_CPU_SSE_MISALIGN )
363 x264_cpu_mask_misalign_sse();
368 /****************************************************************************
370 ****************************************************************************
371 ****************************** External API*********************************
372 ****************************************************************************
374 ****************************************************************************/
376 static int x264_validate_parameters( x264_t *h )
380 if( !(x264_cpu_detect() & X264_CPU_SSE) )
382 x264_log( h, X264_LOG_ERROR, "your cpu does not support SSE1, but x264 was compiled with asm support\n");
384 if( !(x264_cpu_detect() & X264_CPU_MMXEXT) )
386 x264_log( h, X264_LOG_ERROR, "your cpu does not support MMXEXT, but x264 was compiled with asm support\n");
388 x264_log( h, X264_LOG_ERROR, "to run x264, recompile without asm support (configure --disable-asm)\n");
392 if( h->param.i_width <= 0 || h->param.i_height <= 0 )
394 x264_log( h, X264_LOG_ERROR, "invalid width x height (%dx%d)\n",
395 h->param.i_width, h->param.i_height );
399 if( h->param.i_width % 2 || h->param.i_height % 2 )
401 x264_log( h, X264_LOG_ERROR, "width or height not divisible by 2 (%dx%d)\n",
402 h->param.i_width, h->param.i_height );
405 int i_csp = h->param.i_csp & X264_CSP_MASK;
406 if( i_csp != X264_CSP_I420 && i_csp != X264_CSP_YV12 )
408 x264_log( h, X264_LOG_ERROR, "invalid CSP (only I420/YV12 supported)\n" );
412 if( h->param.i_threads == X264_THREADS_AUTO )
413 h->param.i_threads = x264_cpu_num_processors() * (h->param.b_sliced_threads?2:3)/2;
414 h->param.i_threads = x264_clip3( h->param.i_threads, 1, X264_THREAD_MAX );
415 if( h->param.i_threads > 1 )
418 x264_log( h, X264_LOG_WARNING, "not compiled with pthread support!\n");
419 h->param.i_threads = 1;
421 /* Avoid absurdly small thread slices as they can reduce performance
422 * and VBV compliance. Capped at an arbitrary 4 rows per thread. */
423 if( h->param.b_sliced_threads )
425 int max_threads = (h->param.i_height+15)/16 / 4;
426 h->param.i_threads = X264_MIN( h->param.i_threads, max_threads );
430 h->param.b_sliced_threads = 0;
431 h->i_thread_frames = h->param.b_sliced_threads ? 1 : h->param.i_threads;
432 if( h->i_thread_frames > 1 )
433 h->param.nalu_process = NULL;
435 if( h->param.b_interlaced )
437 if( h->param.analyse.i_me_method >= X264_ME_ESA )
439 x264_log( h, X264_LOG_WARNING, "interlace + me=esa is not implemented\n" );
440 h->param.analyse.i_me_method = X264_ME_UMH;
442 if( h->param.analyse.i_weighted_pred > 0 )
444 x264_log( h, X264_LOG_WARNING, "interlace + weightp is not implemented\n" );
445 h->param.analyse.i_weighted_pred = X264_WEIGHTP_NONE;
449 /* Detect default ffmpeg settings and terminate with an error. */
452 score += h->param.analyse.i_me_range == 0;
453 score += h->param.rc.i_qp_step == 3;
454 score += h->param.i_keyint_max == 12;
455 score += h->param.rc.i_qp_min == 2;
456 score += h->param.rc.i_qp_max == 31;
457 score += h->param.rc.f_qcompress == 0.5;
458 score += fabs(h->param.rc.f_ip_factor - 1.25) < 0.01;
459 score += fabs(h->param.rc.f_pb_factor - 1.25) < 0.01;
460 score += h->param.analyse.inter == 0 && h->param.analyse.i_subpel_refine == 8;
463 x264_log( h, X264_LOG_ERROR, "broken ffmpeg default settings detected\n" );
464 x264_log( h, X264_LOG_ERROR, "use an encoding preset (vpre)\n" );
469 if( h->param.rc.i_rc_method < 0 || h->param.rc.i_rc_method > 2 )
471 x264_log( h, X264_LOG_ERROR, "no ratecontrol method specified\n" );
474 h->param.rc.f_rf_constant = x264_clip3f( h->param.rc.f_rf_constant, 0, QP_MAX );
475 h->param.rc.i_qp_constant = x264_clip3( h->param.rc.i_qp_constant, 0, QP_MAX );
476 if( h->param.rc.i_rc_method == X264_RC_CRF )
478 h->param.rc.i_qp_constant = h->param.rc.f_rf_constant;
479 h->param.rc.i_bitrate = 0;
481 if( (h->param.rc.i_rc_method == X264_RC_CQP || h->param.rc.i_rc_method == X264_RC_CRF)
482 && h->param.rc.i_qp_constant == 0 )
484 h->mb.b_lossless = 1;
485 h->param.i_cqm_preset = X264_CQM_FLAT;
486 h->param.psz_cqm_file = NULL;
487 h->param.rc.i_rc_method = X264_RC_CQP;
488 h->param.rc.f_ip_factor = 1;
489 h->param.rc.f_pb_factor = 1;
490 h->param.analyse.b_psnr = 0;
491 h->param.analyse.b_ssim = 0;
492 h->param.analyse.i_chroma_qp_offset = 0;
493 h->param.analyse.i_trellis = 0;
494 h->param.analyse.b_fast_pskip = 0;
495 h->param.analyse.i_noise_reduction = 0;
496 h->param.analyse.b_psy = 0;
497 h->param.i_bframe = 0;
498 /* 8x8dct is not useful at all in CAVLC lossless */
499 if( !h->param.b_cabac )
500 h->param.analyse.b_transform_8x8 = 0;
502 if( h->param.rc.i_rc_method == X264_RC_CQP )
504 float qp_p = h->param.rc.i_qp_constant;
505 float qp_i = qp_p - 6*log2f( h->param.rc.f_ip_factor );
506 float qp_b = qp_p + 6*log2f( h->param.rc.f_pb_factor );
507 h->param.rc.i_qp_min = x264_clip3( (int)(X264_MIN3( qp_p, qp_i, qp_b )), 0, QP_MAX );
508 h->param.rc.i_qp_max = x264_clip3( (int)(X264_MAX3( qp_p, qp_i, qp_b ) + .999), 0, QP_MAX );
509 h->param.rc.i_aq_mode = 0;
510 h->param.rc.b_mb_tree = 0;
512 h->param.rc.i_qp_max = x264_clip3( h->param.rc.i_qp_max, 0, QP_MAX );
513 h->param.rc.i_qp_min = x264_clip3( h->param.rc.i_qp_min, 0, h->param.rc.i_qp_max );
514 if( h->param.rc.i_vbv_buffer_size )
516 if( h->param.rc.i_rc_method == X264_RC_CQP )
518 x264_log( h, X264_LOG_WARNING, "VBV is incompatible with constant QP, ignored.\n" );
519 h->param.rc.i_vbv_max_bitrate = 0;
520 h->param.rc.i_vbv_buffer_size = 0;
522 else if( h->param.rc.i_vbv_max_bitrate == 0 )
524 if( h->param.rc.i_rc_method == X264_RC_ABR )
526 x264_log( h, X264_LOG_WARNING, "VBV maxrate unspecified, assuming CBR\n" );
527 h->param.rc.i_vbv_max_bitrate = h->param.rc.i_bitrate;
531 x264_log( h, X264_LOG_WARNING, "VBV bufsize set but maxrate unspecified, ignored\n" );
532 h->param.rc.i_vbv_buffer_size = 0;
535 else if( h->param.rc.i_vbv_max_bitrate < h->param.rc.i_bitrate &&
536 h->param.rc.i_rc_method == X264_RC_ABR )
538 x264_log( h, X264_LOG_WARNING, "max bitrate less than average bitrate, assuming CBR\n" );
539 h->param.rc.i_vbv_max_bitrate = h->param.rc.i_bitrate;
542 else if( h->param.rc.i_vbv_max_bitrate )
544 x264_log( h, X264_LOG_WARNING, "VBV maxrate specified, but no bufsize, ignored\n" );
545 h->param.rc.i_vbv_max_bitrate = 0;
548 if( h->param.b_interlaced && h->param.i_slice_max_size )
550 x264_log( h, X264_LOG_WARNING, "interlaced + slice-max-size is not implemented\n" );
551 h->param.i_slice_max_size = 0;
553 if( h->param.b_interlaced && h->param.i_slice_max_mbs )
555 x264_log( h, X264_LOG_WARNING, "interlaced + slice-max-mbs is not implemented\n" );
556 h->param.i_slice_max_mbs = 0;
558 int max_slices = (h->param.i_height+((16<<h->param.b_interlaced)-1))/(16<<h->param.b_interlaced);
559 if( h->param.b_sliced_threads )
560 h->param.i_slice_count = x264_clip3( h->param.i_threads, 0, max_slices );
563 h->param.i_slice_count = x264_clip3( h->param.i_slice_count, 0, max_slices );
564 h->param.i_slice_max_size = X264_MAX( h->param.i_slice_max_size, 0 );
565 h->param.i_slice_max_mbs = X264_MAX( h->param.i_slice_max_mbs, 0 );
566 if( h->param.i_slice_max_mbs || h->param.i_slice_max_size )
567 h->param.i_slice_count = 0;
570 h->param.i_frame_reference = x264_clip3( h->param.i_frame_reference, 1, 16 );
571 h->param.i_dpb_size = x264_clip3( h->param.i_dpb_size, 1, 16 );
572 h->param.i_keyint_max = x264_clip3( h->param.i_keyint_max, 1, X264_KEYINT_MAX_INFINITE );
573 if( h->param.i_scenecut_threshold < 0 )
574 h->param.i_scenecut_threshold = 0;
575 if( !h->param.analyse.i_subpel_refine && h->param.analyse.i_direct_mv_pred > X264_DIRECT_PRED_SPATIAL )
577 x264_log( h, X264_LOG_WARNING, "subme=0 + direct=temporal is not supported\n" );
578 h->param.analyse.i_direct_mv_pred = X264_DIRECT_PRED_SPATIAL;
580 h->param.i_bframe = x264_clip3( h->param.i_bframe, 0, X264_MIN( X264_BFRAME_MAX, h->param.i_keyint_max-1 ) );
581 h->param.i_open_gop = x264_clip3( h->param.i_open_gop, X264_OPEN_GOP_NONE, X264_OPEN_GOP_BLURAY );
582 if( h->param.i_keyint_max == 1 )
583 h->param.b_intra_refresh = 0;
584 h->param.i_bframe_bias = x264_clip3( h->param.i_bframe_bias, -90, 100 );
585 if( h->param.i_bframe <= 1 )
586 h->param.i_bframe_pyramid = X264_B_PYRAMID_NONE;
587 h->param.i_bframe_pyramid = x264_clip3( h->param.i_bframe_pyramid, X264_B_PYRAMID_NONE, X264_B_PYRAMID_NORMAL );
588 if( !h->param.i_bframe )
590 h->param.i_bframe_adaptive = X264_B_ADAPT_NONE;
591 h->param.analyse.i_direct_mv_pred = 0;
592 h->param.analyse.b_weighted_bipred = 0;
593 h->param.i_open_gop = X264_OPEN_GOP_NONE;
595 if( h->param.b_intra_refresh && h->param.i_bframe_pyramid == X264_B_PYRAMID_NORMAL )
597 x264_log( h, X264_LOG_WARNING, "b-pyramid normal + intra-refresh is not supported\n" );
598 h->param.i_bframe_pyramid = X264_B_PYRAMID_STRICT;
600 if( h->param.b_intra_refresh && (h->param.i_frame_reference > 1 || h->param.i_dpb_size > 1) )
602 x264_log( h, X264_LOG_WARNING, "ref > 1 + intra-refresh is not supported\n" );
603 h->param.i_frame_reference = 1;
604 h->param.i_dpb_size = 1;
606 if( h->param.b_intra_refresh && h->param.i_open_gop )
608 x264_log( h, X264_LOG_WARNING, "intra-refresh is not compatible with open-gop\n" );
609 h->param.i_open_gop = X264_OPEN_GOP_NONE;
611 if( h->param.i_keyint_min == X264_KEYINT_MIN_AUTO )
612 h->param.i_keyint_min = h->param.i_keyint_max / 10;
613 h->param.i_keyint_min = x264_clip3( h->param.i_keyint_min, 1, h->param.i_keyint_max/2+1 );
614 h->param.rc.i_lookahead = x264_clip3( h->param.rc.i_lookahead, 0, X264_LOOKAHEAD_MAX );
616 int maxrate = X264_MAX( h->param.rc.i_vbv_max_bitrate, h->param.rc.i_bitrate );
617 float bufsize = maxrate ? (float)h->param.rc.i_vbv_buffer_size / maxrate : 0;
618 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;
619 h->param.rc.i_lookahead = X264_MIN( h->param.rc.i_lookahead, X264_MAX( h->param.i_keyint_max, bufsize*fps ) );
622 if( !h->param.i_timebase_num || !h->param.i_timebase_den )
624 h->param.i_timebase_num = h->param.i_fps_den;
625 h->param.i_timebase_den = h->param.i_fps_num;
628 h->param.rc.f_qcompress = x264_clip3f( h->param.rc.f_qcompress, 0.0, 1.0 );
629 if( h->param.i_keyint_max == 1 || h->param.rc.f_qcompress == 1 )
630 h->param.rc.b_mb_tree = 0;
631 if( (!h->param.b_intra_refresh && h->param.i_keyint_max != X264_KEYINT_MAX_INFINITE) &&
632 !h->param.rc.i_lookahead && h->param.rc.b_mb_tree )
634 x264_log( h, X264_LOG_WARNING, "lookaheadless mb-tree requires intra refresh or infinite keyint\n" );
635 h->param.rc.b_mb_tree = 0;
637 if( h->param.rc.b_stat_read )
638 h->param.rc.i_lookahead = 0;
640 if( h->param.i_sync_lookahead < 0 )
641 h->param.i_sync_lookahead = h->param.i_bframe + 1;
642 h->param.i_sync_lookahead = X264_MIN( h->param.i_sync_lookahead, X264_LOOKAHEAD_MAX );
643 if( h->param.rc.b_stat_read || h->i_thread_frames == 1 )
644 h->param.i_sync_lookahead = 0;
646 h->param.i_sync_lookahead = 0;
649 h->param.i_deblocking_filter_alphac0 = x264_clip3( h->param.i_deblocking_filter_alphac0, -6, 6 );
650 h->param.i_deblocking_filter_beta = x264_clip3( h->param.i_deblocking_filter_beta, -6, 6 );
651 h->param.analyse.i_luma_deadzone[0] = x264_clip3( h->param.analyse.i_luma_deadzone[0], 0, 32 );
652 h->param.analyse.i_luma_deadzone[1] = x264_clip3( h->param.analyse.i_luma_deadzone[1], 0, 32 );
654 h->param.i_cabac_init_idc = x264_clip3( h->param.i_cabac_init_idc, 0, 2 );
656 if( h->param.i_cqm_preset < X264_CQM_FLAT || h->param.i_cqm_preset > X264_CQM_CUSTOM )
657 h->param.i_cqm_preset = X264_CQM_FLAT;
659 if( h->param.analyse.i_me_method < X264_ME_DIA ||
660 h->param.analyse.i_me_method > X264_ME_TESA )
661 h->param.analyse.i_me_method = X264_ME_HEX;
662 if( h->param.analyse.i_me_range < 4 )
663 h->param.analyse.i_me_range = 4;
664 if( h->param.analyse.i_me_range > 16 && h->param.analyse.i_me_method <= X264_ME_HEX )
665 h->param.analyse.i_me_range = 16;
666 if( h->param.analyse.i_me_method == X264_ME_TESA &&
667 (h->mb.b_lossless || h->param.analyse.i_subpel_refine <= 1) )
668 h->param.analyse.i_me_method = X264_ME_ESA;
669 h->param.analyse.i_subpel_refine = x264_clip3( h->param.analyse.i_subpel_refine, 0, 10 );
670 h->param.analyse.b_mixed_references = h->param.analyse.b_mixed_references && h->param.i_frame_reference > 1;
671 h->param.analyse.inter &= X264_ANALYSE_PSUB16x16|X264_ANALYSE_PSUB8x8|X264_ANALYSE_BSUB16x16|
672 X264_ANALYSE_I4x4|X264_ANALYSE_I8x8;
673 h->param.analyse.intra &= X264_ANALYSE_I4x4|X264_ANALYSE_I8x8;
674 if( !(h->param.analyse.inter & X264_ANALYSE_PSUB16x16) )
675 h->param.analyse.inter &= ~X264_ANALYSE_PSUB8x8;
676 if( !h->param.analyse.b_transform_8x8 )
678 h->param.analyse.inter &= ~X264_ANALYSE_I8x8;
679 h->param.analyse.intra &= ~X264_ANALYSE_I8x8;
681 h->param.analyse.i_chroma_qp_offset = x264_clip3(h->param.analyse.i_chroma_qp_offset, -12, 12);
682 if( !h->param.b_cabac )
683 h->param.analyse.i_trellis = 0;
684 h->param.analyse.i_trellis = x264_clip3( h->param.analyse.i_trellis, 0, 2 );
685 if( !h->param.analyse.b_psy )
687 h->param.analyse.f_psy_rd = 0;
688 h->param.analyse.f_psy_trellis = 0;
690 if( !h->param.analyse.i_trellis )
691 h->param.analyse.f_psy_trellis = 0;
692 h->param.analyse.f_psy_rd = x264_clip3f( h->param.analyse.f_psy_rd, 0, 10 );
693 h->param.analyse.f_psy_trellis = x264_clip3f( h->param.analyse.f_psy_trellis, 0, 10 );
694 if( h->param.analyse.i_subpel_refine < 6 )
695 h->param.analyse.f_psy_rd = 0;
696 h->mb.i_psy_rd = FIX8( h->param.analyse.f_psy_rd );
697 /* Psy RDO increases overall quantizers to improve the quality of luma--this indirectly hurts chroma quality */
698 /* so we lower the chroma QP offset to compensate */
699 /* This can be triggered repeatedly on multiple calls to parameter_validate, but since encoding
700 * uses the pps chroma qp offset not the param chroma qp offset, this is not a problem. */
702 h->param.analyse.i_chroma_qp_offset -= h->param.analyse.f_psy_rd < 0.25 ? 1 : 2;
703 h->mb.i_psy_trellis = FIX8( h->param.analyse.f_psy_trellis / 4 );
704 /* Psy trellis has a similar effect. */
705 if( h->mb.i_psy_trellis )
706 h->param.analyse.i_chroma_qp_offset -= h->param.analyse.f_psy_trellis < 0.25 ? 1 : 2;
707 h->param.analyse.i_chroma_qp_offset = x264_clip3(h->param.analyse.i_chroma_qp_offset, -12, 12);
708 h->param.rc.i_aq_mode = x264_clip3( h->param.rc.i_aq_mode, 0, 2 );
709 h->param.rc.f_aq_strength = x264_clip3f( h->param.rc.f_aq_strength, 0, 3 );
710 if( h->param.rc.f_aq_strength == 0 )
711 h->param.rc.i_aq_mode = 0;
712 /* MB-tree requires AQ to be on, even if the strength is zero. */
713 if( !h->param.rc.i_aq_mode && h->param.rc.b_mb_tree )
715 h->param.rc.i_aq_mode = 1;
716 h->param.rc.f_aq_strength = 0;
718 h->param.analyse.i_noise_reduction = x264_clip3( h->param.analyse.i_noise_reduction, 0, 1<<16 );
719 if( h->param.analyse.i_subpel_refine == 10 && (h->param.analyse.i_trellis != 2 || !h->param.rc.i_aq_mode) )
720 h->param.analyse.i_subpel_refine = 9;
723 const x264_level_t *l = x264_levels;
724 if( h->param.i_level_idc < 0 )
726 int maxrate_bak = h->param.rc.i_vbv_max_bitrate;
727 if( h->param.rc.i_rc_method == X264_RC_ABR && h->param.rc.i_vbv_buffer_size <= 0 )
728 h->param.rc.i_vbv_max_bitrate = h->param.rc.i_bitrate * 2;
729 h->sps = h->sps_array;
730 x264_sps_init( h->sps, h->param.i_sps_id, &h->param );
731 do h->param.i_level_idc = l->level_idc;
732 while( l[1].level_idc && x264_validate_levels( h, 0 ) && l++ );
733 h->param.rc.i_vbv_max_bitrate = maxrate_bak;
737 while( l->level_idc && l->level_idc != h->param.i_level_idc )
739 if( l->level_idc == 0 )
741 x264_log( h, X264_LOG_ERROR, "invalid level_idc: %d\n", h->param.i_level_idc );
745 if( h->param.analyse.i_mv_range <= 0 )
746 h->param.analyse.i_mv_range = l->mv_range >> h->param.b_interlaced;
748 h->param.analyse.i_mv_range = x264_clip3(h->param.analyse.i_mv_range, 32, 512 >> h->param.b_interlaced);
751 h->param.analyse.i_weighted_pred = x264_clip3( h->param.analyse.i_weighted_pred, 0, X264_WEIGHTP_SMART );
752 if( !h->param.analyse.i_weighted_pred && h->param.rc.b_mb_tree && h->param.analyse.b_psy && !h->param.b_interlaced )
753 h->param.analyse.i_weighted_pred = X264_WEIGHTP_FAKE;
755 if( h->i_thread_frames > 1 )
757 int r = h->param.analyse.i_mv_range_thread;
761 // half of the available space is reserved and divided evenly among the threads,
762 // the rest is allocated to whichever thread is far enough ahead to use it.
763 // reserving more space increases quality for some videos, but costs more time
764 // in thread synchronization.
765 int max_range = (h->param.i_height + X264_THREAD_HEIGHT) / h->i_thread_frames - X264_THREAD_HEIGHT;
768 r = X264_MAX( r, h->param.analyse.i_me_range );
769 r = X264_MIN( r, h->param.analyse.i_mv_range );
770 // round up to use the whole mb row
771 r2 = (r & ~15) + ((-X264_THREAD_HEIGHT) & 15);
774 x264_log( h, X264_LOG_DEBUG, "using mv_range_thread = %d\n", r2 );
775 h->param.analyse.i_mv_range_thread = r2;
778 if( h->param.rc.f_qblur < 0 )
779 h->param.rc.f_qblur = 0;
780 if( h->param.rc.f_complexity_blur < 0 )
781 h->param.rc.f_complexity_blur = 0;
783 h->param.i_sps_id &= 31;
785 if( h->param.i_log_level < X264_LOG_INFO )
787 h->param.analyse.b_psnr = 0;
788 h->param.analyse.b_ssim = 0;
791 if( h->param.b_interlaced )
792 h->param.b_pic_struct = 1;
794 if( h->param.i_nal_hrd && !h->param.rc.i_vbv_buffer_size )
796 x264_log( h, X264_LOG_WARNING, "NAL HRD parameters require VBV parameters\n" );
797 h->param.i_nal_hrd = X264_NAL_HRD_NONE;
800 if( h->param.i_nal_hrd == X264_NAL_HRD_CBR &&
801 (h->param.rc.i_bitrate != h->param.rc.i_vbv_max_bitrate || !h->param.rc.i_vbv_max_bitrate) )
803 x264_log( h, X264_LOG_WARNING, "CBR HRD requires constant bitrate\n" );
804 h->param.i_nal_hrd = X264_NAL_HRD_VBR;
807 /* ensure the booleans are 0 or 1 so they can be used in math */
808 #define BOOLIFY(x) h->param.x = !!h->param.x
810 BOOLIFY( b_constrained_intra );
811 BOOLIFY( b_deblocking_filter );
812 BOOLIFY( b_deterministic );
813 BOOLIFY( b_sliced_threads );
814 BOOLIFY( b_interlaced );
815 BOOLIFY( b_intra_refresh );
816 BOOLIFY( b_visualize );
818 BOOLIFY( b_repeat_headers );
820 BOOLIFY( b_vfr_input );
821 BOOLIFY( b_pic_struct );
822 BOOLIFY( b_fake_interlaced );
823 BOOLIFY( analyse.b_transform_8x8 );
824 BOOLIFY( analyse.b_weighted_bipred );
825 BOOLIFY( analyse.b_chroma_me );
826 BOOLIFY( analyse.b_mixed_references );
827 BOOLIFY( analyse.b_fast_pskip );
828 BOOLIFY( analyse.b_dct_decimate );
829 BOOLIFY( analyse.b_psy );
830 BOOLIFY( analyse.b_psnr );
831 BOOLIFY( analyse.b_ssim );
832 BOOLIFY( rc.b_stat_write );
833 BOOLIFY( rc.b_stat_read );
834 BOOLIFY( rc.b_mb_tree );
840 static void mbcmp_init( x264_t *h )
842 int satd = !h->mb.b_lossless && h->param.analyse.i_subpel_refine > 1;
843 memcpy( h->pixf.mbcmp, satd ? h->pixf.satd : h->pixf.sad_aligned, sizeof(h->pixf.mbcmp) );
844 memcpy( h->pixf.mbcmp_unaligned, satd ? h->pixf.satd : h->pixf.sad, sizeof(h->pixf.mbcmp_unaligned) );
845 h->pixf.intra_mbcmp_x3_16x16 = satd ? h->pixf.intra_satd_x3_16x16 : h->pixf.intra_sad_x3_16x16;
846 h->pixf.intra_mbcmp_x3_8x8c = satd ? h->pixf.intra_satd_x3_8x8c : h->pixf.intra_sad_x3_8x8c;
847 h->pixf.intra_mbcmp_x3_8x8 = satd ? h->pixf.intra_sa8d_x3_8x8 : h->pixf.intra_sad_x3_8x8;
848 h->pixf.intra_mbcmp_x3_4x4 = satd ? h->pixf.intra_satd_x3_4x4 : h->pixf.intra_sad_x3_4x4;
849 satd &= h->param.analyse.i_me_method == X264_ME_TESA;
850 memcpy( h->pixf.fpelcmp, satd ? h->pixf.satd : h->pixf.sad, sizeof(h->pixf.fpelcmp) );
851 memcpy( h->pixf.fpelcmp_x3, satd ? h->pixf.satd_x3 : h->pixf.sad_x3, sizeof(h->pixf.fpelcmp_x3) );
852 memcpy( h->pixf.fpelcmp_x4, satd ? h->pixf.satd_x4 : h->pixf.sad_x4, sizeof(h->pixf.fpelcmp_x4) );
855 static void x264_set_aspect_ratio( x264_t *h, x264_param_t *param, int initial )
858 if( param->vui.i_sar_width > 0 && param->vui.i_sar_height > 0 )
860 uint32_t i_w = param->vui.i_sar_width;
861 uint32_t i_h = param->vui.i_sar_height;
862 uint32_t old_w = h->param.vui.i_sar_width;
863 uint32_t old_h = h->param.vui.i_sar_height;
865 x264_reduce_fraction( &i_w, &i_h );
867 while( i_w > 65535 || i_h > 65535 )
873 x264_reduce_fraction( &i_w, &i_h );
875 if( i_w != old_w || i_h != old_h || initial )
877 h->param.vui.i_sar_width = 0;
878 h->param.vui.i_sar_height = 0;
879 if( i_w == 0 || i_h == 0 )
880 x264_log( h, X264_LOG_WARNING, "cannot create valid sample aspect ratio\n" );
883 x264_log( h, initial?X264_LOG_INFO:X264_LOG_DEBUG, "using SAR=%d/%d\n", i_w, i_h );
884 h->param.vui.i_sar_width = i_w;
885 h->param.vui.i_sar_height = i_h;
891 /****************************************************************************
893 ****************************************************************************/
894 x264_t *x264_encoder_open( x264_param_t *param )
898 int qp, i_slicetype_length;
900 CHECKED_MALLOCZERO( h, sizeof(x264_t) );
902 /* Create a copy of param */
903 memcpy( &h->param, param, sizeof(x264_param_t) );
905 if( param->param_free )
906 param->param_free( param );
908 if( x264_validate_parameters( h ) < 0 )
911 if( h->param.psz_cqm_file )
912 if( x264_cqm_parse_file( h, h->param.psz_cqm_file ) < 0 )
915 if( h->param.rc.psz_stat_out )
916 h->param.rc.psz_stat_out = strdup( h->param.rc.psz_stat_out );
917 if( h->param.rc.psz_stat_in )
918 h->param.rc.psz_stat_in = strdup( h->param.rc.psz_stat_in );
920 x264_set_aspect_ratio( h, &h->param, 1 );
922 x264_reduce_fraction( &h->param.i_fps_num, &h->param.i_fps_den );
923 x264_reduce_fraction( &h->param.i_timebase_num, &h->param.i_timebase_den );
929 uint64_t new_timebase_den = h->param.i_timebase_den;
930 if( h->param.b_dts_compress )
932 /* h->i_dts_compress_multiplier == h->frames.i_bframe_delay + 1 */
933 h->i_dts_compress_multiplier = h->param.i_bframe ? (h->param.i_bframe_pyramid ? 3 : 2) : 1;
934 if( h->i_dts_compress_multiplier != 1 )
936 new_timebase_den = h->param.i_timebase_den * h->i_dts_compress_multiplier;
937 x264_log( h, X264_LOG_DEBUG, "DTS compresion changed timebase: %u/%u -> %u/%"PRIu64"\n",
938 h->param.i_timebase_num, h->param.i_timebase_den,
939 h->param.i_timebase_num, new_timebase_den );
943 h->i_dts_compress_multiplier = 1;
945 if( new_timebase_den * 2 > UINT32_MAX )
947 x264_log( h, X264_LOG_ERROR, "Effective timebase denominator %"PRIu64" exceeds H.264 maximum\n", new_timebase_den );
950 h->param.i_timebase_den = new_timebase_den;
952 h->sps = &h->sps_array[0];
953 x264_sps_init( h->sps, h->param.i_sps_id, &h->param );
955 h->pps = &h->pps_array[0];
956 x264_pps_init( h->pps, h->param.i_sps_id, &h->param, h->sps );
958 x264_validate_levels( h, 1 );
960 h->chroma_qp_table = i_chroma_qp_table + 12 + h->pps->i_chroma_qp_index_offset;
962 if( x264_cqm_init( h ) < 0 )
965 h->mb.i_mb_width = h->sps->i_mb_width;
966 h->mb.i_mb_height = h->sps->i_mb_height;
967 h->mb.i_mb_count = h->mb.i_mb_width * h->mb.i_mb_height;
970 if( h->param.i_bframe_adaptive == X264_B_ADAPT_TRELLIS && !h->param.rc.b_stat_read )
971 h->frames.i_delay = X264_MAX(h->param.i_bframe,3)*4;
973 h->frames.i_delay = h->param.i_bframe;
974 if( h->param.rc.b_mb_tree || h->param.rc.i_vbv_buffer_size )
975 h->frames.i_delay = X264_MAX( h->frames.i_delay, h->param.rc.i_lookahead );
976 i_slicetype_length = h->frames.i_delay;
977 h->frames.i_delay += h->i_thread_frames - 1;
978 h->frames.i_delay += h->param.i_sync_lookahead;
979 h->frames.i_delay += h->param.b_vfr_input && (h->param.rc.i_rc_method == X264_RC_ABR || h->param.rc.b_stat_write
980 || h->param.rc.i_vbv_buffer_size);
981 h->frames.i_bframe_delay = h->param.i_bframe ? (h->param.i_bframe_pyramid ? 2 : 1) : 0;
983 h->frames.i_max_ref0 = h->param.i_frame_reference;
984 h->frames.i_max_ref1 = X264_MIN( h->sps->vui.i_num_reorder_frames, h->param.i_frame_reference );
985 h->frames.i_max_dpb = h->sps->vui.i_max_dec_frame_buffering;
986 h->frames.b_have_lowres = !h->param.rc.b_stat_read
987 && ( h->param.rc.i_rc_method == X264_RC_ABR
988 || h->param.rc.i_rc_method == X264_RC_CRF
989 || h->param.i_bframe_adaptive
990 || h->param.i_scenecut_threshold
991 || h->param.rc.b_mb_tree
992 || h->param.analyse.i_weighted_pred == X264_WEIGHTP_SMART );
993 h->frames.b_have_lowres |= h->param.rc.b_stat_read && h->param.rc.i_vbv_buffer_size > 0;
994 h->frames.b_have_sub8x8_esa = !!(h->param.analyse.inter & X264_ANALYSE_PSUB8x8);
996 h->frames.i_last_idr =
997 h->frames.i_last_keyframe = - h->param.i_keyint_max;
998 h->frames.i_input = 0;
999 h->frames.i_largest_pts = h->frames.i_second_largest_pts = -1;
1000 h->frames.i_poc_last_open_gop = -1;
1002 CHECKED_MALLOCZERO( h->frames.unused[0], (h->frames.i_delay + 3) * sizeof(x264_frame_t *) );
1003 /* Allocate room for max refs plus a few extra just in case. */
1004 CHECKED_MALLOCZERO( h->frames.unused[1], (h->i_thread_frames + 20) * sizeof(x264_frame_t *) );
1005 CHECKED_MALLOCZERO( h->frames.current, (h->param.i_sync_lookahead + h->param.i_bframe
1006 + h->i_thread_frames + 3) * sizeof(x264_frame_t *) );
1007 if( h->param.analyse.i_weighted_pred > 0 )
1008 CHECKED_MALLOCZERO( h->frames.blank_unused, h->i_thread_frames * 4 * sizeof(x264_frame_t *) );
1011 h->i_cpb_delay = h->i_coded_fields = h->i_disp_fields = h->i_prev_duration = 0;
1012 h->i_disp_fields_last_frame = -1;
1015 /* init CPU functions */
1016 x264_predict_16x16_init( h->param.cpu, h->predict_16x16 );
1017 x264_predict_8x8c_init( h->param.cpu, h->predict_8x8c );
1018 x264_predict_8x8_init( h->param.cpu, h->predict_8x8, &h->predict_8x8_filter );
1019 x264_predict_4x4_init( h->param.cpu, h->predict_4x4 );
1020 if( !h->param.b_cabac )
1021 x264_init_vlc_tables();
1022 x264_pixel_init( h->param.cpu, &h->pixf );
1023 x264_dct_init( h->param.cpu, &h->dctf );
1024 x264_zigzag_init( h->param.cpu, &h->zigzagf, h->param.b_interlaced );
1025 x264_mc_init( h->param.cpu, &h->mc );
1026 x264_quant_init( h, h->param.cpu, &h->quantf );
1027 x264_deblock_init( h->param.cpu, &h->loopf );
1028 x264_bitstream_init( h->param.cpu, &h->bsf );
1029 x264_dct_init_weights();
1033 p = buf + sprintf( buf, "using cpu capabilities:" );
1034 for( int i = 0; x264_cpu_names[i].flags; i++ )
1036 if( !strcmp(x264_cpu_names[i].name, "SSE2")
1037 && h->param.cpu & (X264_CPU_SSE2_IS_FAST|X264_CPU_SSE2_IS_SLOW) )
1039 if( !strcmp(x264_cpu_names[i].name, "SSE3")
1040 && (h->param.cpu & X264_CPU_SSSE3 || !(h->param.cpu & X264_CPU_CACHELINE_64)) )
1042 if( !strcmp(x264_cpu_names[i].name, "SSE4.1")
1043 && (h->param.cpu & X264_CPU_SSE42) )
1045 if( (h->param.cpu & x264_cpu_names[i].flags) == x264_cpu_names[i].flags
1046 && (!i || x264_cpu_names[i].flags != x264_cpu_names[i-1].flags) )
1047 p += sprintf( p, " %s", x264_cpu_names[i].name );
1050 p += sprintf( p, " none!" );
1051 x264_log( h, X264_LOG_INFO, "%s\n", buf );
1053 for( qp = h->param.rc.i_qp_min; qp <= h->param.rc.i_qp_max; qp++ )
1054 if( x264_analyse_init_costs( h, qp ) )
1056 if( x264_analyse_init_costs( h, X264_LOOKAHEAD_QP ) )
1059 static const uint16_t cost_mv_correct[7] = { 24, 47, 95, 189, 379, 757, 1515 };
1060 /* Checks for known miscompilation issues. */
1061 if( h->cost_mv[x264_lambda_tab[X264_LOOKAHEAD_QP]][2013] != cost_mv_correct[BIT_DEPTH-8] )
1063 x264_log( h, X264_LOG_ERROR, "MV cost test failed: x264 has been miscompiled!\n" );
1067 /* Must be volatile or else GCC will optimize it out. */
1068 volatile int temp = 392;
1069 if( x264_clz( temp ) != 23 )
1071 x264_log( h, X264_LOG_ERROR, "CLZ test failed: x264 has been miscompiled!\n" );
1072 #if ARCH_X86 || ARCH_X86_64
1073 x264_log( h, X264_LOG_ERROR, "Are you attempting to run an SSE4a-targeted build on a CPU that\n" );
1074 x264_log( h, X264_LOG_ERROR, "doesn't support it?\n" );
1080 h->out.i_bitstream = X264_MAX( 1000000, h->param.i_width * h->param.i_height * 4
1081 * ( h->param.rc.i_rc_method == X264_RC_ABR ? pow( 0.95, h->param.rc.i_qp_min )
1082 : pow( 0.95, h->param.rc.i_qp_constant ) * X264_MAX( 1, h->param.rc.f_ip_factor )));
1084 CHECKED_MALLOC( h->nal_buffer, h->out.i_bitstream * 3/2 + 4 );
1085 h->nal_buffer_size = h->out.i_bitstream * 3/2 + 4;
1087 if( h->param.i_threads > 1 &&
1088 x264_threadpool_init( &h->threadpool, h->param.i_threads, (void*)x264_encoder_thread_init, h ) )
1092 for( int i = 1; i < h->param.i_threads + !!h->param.i_sync_lookahead; i++ )
1093 CHECKED_MALLOC( h->thread[i], sizeof(x264_t) );
1095 if( x264_lookahead_init( h, i_slicetype_length ) )
1098 for( int i = 0; i < h->param.i_threads; i++ )
1100 int init_nal_count = h->param.i_slice_count + 3;
1101 int allocate_threadlocal_data = !h->param.b_sliced_threads || !i;
1105 if( allocate_threadlocal_data )
1107 h->thread[i]->fdec = x264_frame_pop_unused( h, 1 );
1108 if( !h->thread[i]->fdec )
1112 h->thread[i]->fdec = h->thread[0]->fdec;
1114 CHECKED_MALLOC( h->thread[i]->out.p_bitstream, h->out.i_bitstream );
1115 /* Start each thread with room for init_nal_count NAL units; it'll realloc later if needed. */
1116 CHECKED_MALLOC( h->thread[i]->out.nal, init_nal_count*sizeof(x264_nal_t) );
1117 h->thread[i]->out.i_nals_allocated = init_nal_count;
1119 if( allocate_threadlocal_data && x264_macroblock_cache_allocate( h->thread[i] ) < 0 )
1123 for( int i = 0; i < h->param.i_threads; i++ )
1124 if( x264_macroblock_thread_allocate( h->thread[i], 0 ) < 0 )
1127 if( x264_ratecontrol_new( h ) < 0 )
1130 if( h->param.i_nal_hrd )
1132 x264_log( h, X264_LOG_DEBUG, "HRD bitrate: %i bits/sec\n", h->sps->vui.hrd.i_bit_rate_unscaled );
1133 x264_log( h, X264_LOG_DEBUG, "CPB size: %i bits\n", h->sps->vui.hrd.i_cpb_size_unscaled );
1136 if( h->param.psz_dump_yuv )
1138 /* create or truncate the reconstructed video file */
1139 FILE *f = fopen( h->param.psz_dump_yuv, "w" );
1142 x264_log( h, X264_LOG_ERROR, "dump_yuv: can't write to %s\n", h->param.psz_dump_yuv );
1145 else if( !x264_is_regular_file( f ) )
1147 x264_log( h, X264_LOG_ERROR, "dump_yuv: incompatible with non-regular file %s\n", h->param.psz_dump_yuv );
1153 const char *profile = h->sps->i_profile_idc == PROFILE_BASELINE ? "Baseline" :
1154 h->sps->i_profile_idc == PROFILE_MAIN ? "Main" :
1155 h->sps->i_profile_idc == PROFILE_HIGH ? "High" :
1156 h->sps->i_profile_idc == PROFILE_HIGH10 ? "High 10" :
1157 "High 4:4:4 Predictive";
1159 if( h->sps->i_profile_idc < PROFILE_HIGH10 )
1161 x264_log( h, X264_LOG_INFO, "profile %s, level %d.%d\n",
1162 profile, h->sps->i_level_idc/10, h->sps->i_level_idc%10 );
1166 x264_log( h, X264_LOG_INFO, "profile %s, level %d.%d, bit depth %d\n",
1167 profile, h->sps->i_level_idc/10, h->sps->i_level_idc%10, BIT_DEPTH );
1176 /****************************************************************************
1177 * x264_encoder_reconfig:
1178 ****************************************************************************/
1179 int x264_encoder_reconfig( x264_t *h, x264_param_t *param )
1181 int rc_reconfig = 0;
1182 h = h->thread[h->thread[0]->i_thread_phase];
1183 x264_set_aspect_ratio( h, param, 0 );
1184 #define COPY(var) h->param.var = param->var
1185 COPY( i_frame_reference ); // but never uses more refs than initially specified
1186 COPY( i_bframe_bias );
1187 if( h->param.i_scenecut_threshold )
1188 COPY( i_scenecut_threshold ); // can't turn it on or off, only vary the threshold
1189 COPY( b_deblocking_filter );
1190 COPY( i_deblocking_filter_alphac0 );
1191 COPY( i_deblocking_filter_beta );
1192 COPY( analyse.inter );
1193 COPY( analyse.intra );
1194 COPY( analyse.i_direct_mv_pred );
1195 /* Scratch buffer prevents me_range from being increased for esa/tesa */
1196 if( h->param.analyse.i_me_method < X264_ME_ESA || param->analyse.i_me_range < h->param.analyse.i_me_range )
1197 COPY( analyse.i_me_range );
1198 COPY( analyse.i_noise_reduction );
1199 /* We can't switch out of subme=0 during encoding. */
1200 if( h->param.analyse.i_subpel_refine )
1201 COPY( analyse.i_subpel_refine );
1202 COPY( analyse.i_trellis );
1203 COPY( analyse.b_chroma_me );
1204 COPY( analyse.b_dct_decimate );
1205 COPY( analyse.b_fast_pskip );
1206 COPY( analyse.b_mixed_references );
1207 COPY( analyse.f_psy_rd );
1208 COPY( analyse.f_psy_trellis );
1209 // can only twiddle these if they were enabled to begin with:
1210 if( h->param.analyse.i_me_method >= X264_ME_ESA || param->analyse.i_me_method < X264_ME_ESA )
1211 COPY( analyse.i_me_method );
1212 if( h->param.analyse.i_me_method >= X264_ME_ESA && !h->frames.b_have_sub8x8_esa )
1213 h->param.analyse.inter &= ~X264_ANALYSE_PSUB8x8;
1214 if( h->pps->b_transform_8x8_mode )
1215 COPY( analyse.b_transform_8x8 );
1216 if( h->frames.i_max_ref1 > 1 )
1217 COPY( i_bframe_pyramid );
1218 COPY( i_slice_max_size );
1219 COPY( i_slice_max_mbs );
1220 COPY( i_slice_count );
1222 /* VBV can't be turned on if it wasn't on to begin with */
1223 if( h->param.rc.i_vbv_max_bitrate > 0 && h->param.rc.i_vbv_buffer_size > 0 &&
1224 param->rc.i_vbv_max_bitrate > 0 && param->rc.i_vbv_buffer_size > 0 )
1226 COPY( rc.i_vbv_max_bitrate );
1227 COPY( rc.i_vbv_buffer_size );
1228 COPY( rc.i_bitrate );
1231 if( h->param.rc.f_rf_constant != param->rc.f_rf_constant )
1233 COPY( rc.f_rf_constant );
1236 if( h->param.rc.f_rf_constant_max != param->rc.f_rf_constant_max )
1238 COPY( rc.f_rf_constant_max );
1246 int ret = x264_validate_parameters( h );
1248 /* Supported reconfiguration options (1-pass only):
1252 * bitrate (CBR only) */
1253 if( !ret && rc_reconfig )
1254 x264_ratecontrol_init_reconfigurable( h, 0 );
1259 /****************************************************************************
1260 * x264_encoder_parameters:
1261 ****************************************************************************/
1262 void x264_encoder_parameters( x264_t *h, x264_param_t *param )
1264 memcpy( param, &h->thread[h->i_thread_phase]->param, sizeof(x264_param_t) );
1267 /* internal usage */
1268 static void x264_nal_start( x264_t *h, int i_type, int i_ref_idc )
1270 x264_nal_t *nal = &h->out.nal[h->out.i_nal];
1272 nal->i_ref_idc = i_ref_idc;
1273 nal->i_type = i_type;
1274 nal->b_long_startcode = 1;
1277 nal->p_payload= &h->out.p_bitstream[bs_pos( &h->out.bs ) / 8];
1280 /* if number of allocated nals is not enough, re-allocate a larger one. */
1281 static int x264_nal_check_buffer( x264_t *h )
1283 if( h->out.i_nal >= h->out.i_nals_allocated )
1285 x264_nal_t *new_out = x264_malloc( sizeof(x264_nal_t) * (h->out.i_nals_allocated*2) );
1288 memcpy( new_out, h->out.nal, sizeof(x264_nal_t) * (h->out.i_nals_allocated) );
1289 x264_free( h->out.nal );
1290 h->out.nal = new_out;
1291 h->out.i_nals_allocated *= 2;
1296 static int x264_nal_end( x264_t *h )
1298 x264_nal_t *nal = &h->out.nal[h->out.i_nal];
1299 nal->i_payload = &h->out.p_bitstream[bs_pos( &h->out.bs ) / 8] - nal->p_payload;
1300 if( h->param.nalu_process )
1301 h->param.nalu_process( h, nal );
1304 return x264_nal_check_buffer( h );
1307 static int x264_encoder_encapsulate_nals( x264_t *h, int start )
1309 int nal_size = 0, previous_nal_size = 0;
1311 if( h->param.nalu_process )
1313 for( int i = start; i < h->out.i_nal; i++ )
1314 nal_size += h->out.nal[i].i_payload;
1318 for( int i = 0; i < start; i++ )
1319 previous_nal_size += h->out.nal[i].i_payload;
1321 for( int i = start; i < h->out.i_nal; i++ )
1322 nal_size += h->out.nal[i].i_payload;
1324 /* Worst-case NAL unit escaping: reallocate the buffer if it's too small. */
1325 if( h->nal_buffer_size < nal_size * 3/2 + h->out.i_nal * 4 )
1327 uint8_t *buf = x264_malloc( nal_size * 2 + h->out.i_nal * 4 );
1330 if( previous_nal_size )
1331 memcpy( buf, h->nal_buffer, previous_nal_size );
1332 x264_free( h->nal_buffer );
1333 h->nal_buffer = buf;
1336 uint8_t *nal_buffer = h->nal_buffer + previous_nal_size;
1338 for( int i = start; i < h->out.i_nal; i++ )
1340 h->out.nal[i].b_long_startcode = !i || h->out.nal[i].i_type == NAL_SPS || h->out.nal[i].i_type == NAL_PPS;
1341 x264_nal_encode( h, nal_buffer, &h->out.nal[i] );
1342 nal_buffer += h->out.nal[i].i_payload;
1347 return nal_buffer - (h->nal_buffer + previous_nal_size);
1350 /****************************************************************************
1351 * x264_encoder_headers:
1352 ****************************************************************************/
1353 int x264_encoder_headers( x264_t *h, x264_nal_t **pp_nal, int *pi_nal )
1356 /* init bitstream context */
1358 bs_init( &h->out.bs, h->out.p_bitstream, h->out.i_bitstream );
1360 /* Write SEI, SPS and PPS. */
1362 /* generate sequence parameters */
1363 x264_nal_start( h, NAL_SPS, NAL_PRIORITY_HIGHEST );
1364 x264_sps_write( &h->out.bs, h->sps );
1365 if( x264_nal_end( h ) )
1368 /* generate picture parameters */
1369 x264_nal_start( h, NAL_PPS, NAL_PRIORITY_HIGHEST );
1370 x264_pps_write( &h->out.bs, h->pps );
1371 if( x264_nal_end( h ) )
1374 /* identify ourselves */
1375 x264_nal_start( h, NAL_SEI, NAL_PRIORITY_DISPOSABLE );
1376 if( x264_sei_version_write( h, &h->out.bs ) )
1378 if( x264_nal_end( h ) )
1381 frame_size = x264_encoder_encapsulate_nals( h, 0 );
1384 *pi_nal = h->out.i_nal;
1385 *pp_nal = &h->out.nal[0];
1391 /* Check to see whether we have chosen a reference list ordering different
1392 * from the standard's default. */
1393 static inline void x264_reference_check_reorder( x264_t *h )
1395 for( int i = 0; i < h->i_ref0 - 1; i++ )
1396 /* P and B-frames use different default orders. */
1397 if( h->sh.i_type == SLICE_TYPE_P ? h->fref0[i]->i_frame_num < h->fref0[i+1]->i_frame_num
1398 : h->fref0[i]->i_poc < h->fref0[i+1]->i_poc )
1400 h->b_ref_reorder[0] = 1;
1405 /* return -1 on failure, else return the index of the new reference frame */
1406 int x264_weighted_reference_duplicate( x264_t *h, int i_ref, const x264_weight_t *w )
1410 x264_frame_t *newframe;
1411 if( i <= 1 ) /* empty list, definitely can't duplicate frame */
1414 newframe = x264_frame_pop_blank_unused( h );
1416 //FIXME: probably don't need to copy everything
1417 *newframe = *h->fref0[i_ref];
1418 newframe->i_reference_count = 1;
1419 newframe->orig = h->fref0[i_ref];
1420 newframe->b_duplicate = 1;
1421 memcpy( h->fenc->weight[j], w, sizeof(h->fenc->weight[i]) );
1423 /* shift the frames to make space for the dupe. */
1424 h->b_ref_reorder[0] = 1;
1425 if( h->i_ref0 < 16 )
1427 h->fref0[15] = NULL;
1428 x264_frame_unshift( &h->fref0[j], newframe );
1433 static void x264_weighted_pred_init( x264_t *h )
1435 /* for now no analysis and set all weights to nothing */
1436 for( int i_ref = 0; i_ref < h->i_ref0; i_ref++ )
1437 h->fenc->weighted[i_ref] = h->fref0[i_ref]->filtered[0];
1439 // FIXME: This only supports weighting of one reference frame
1440 // and duplicates of that frame.
1441 h->fenc->i_lines_weighted = 0;
1443 for( int i_ref = 0; i_ref < (h->i_ref0 << h->sh.b_mbaff); i_ref++ )
1444 for( int i = 0; i < 3; i++ )
1445 h->sh.weight[i_ref][i].weightfn = NULL;
1448 if( h->sh.i_type != SLICE_TYPE_P || h->param.analyse.i_weighted_pred <= 0 )
1451 int i_padv = PADV << h->param.b_interlaced;
1454 int buffer_next = 0;
1455 //FIXME: when chroma support is added, move this into loop
1456 h->sh.weight[0][1].weightfn = h->sh.weight[0][2].weightfn = NULL;
1457 h->sh.weight[0][1].i_denom = h->sh.weight[0][2].i_denom = 0;
1458 for( int j = 0; j < h->i_ref0; j++ )
1460 if( h->fenc->weight[j][0].weightfn )
1462 h->sh.weight[j][0] = h->fenc->weight[j][0];
1463 // if weight is useless, don't write it to stream
1464 if( h->sh.weight[j][0].i_scale == 1<<h->sh.weight[j][0].i_denom && h->sh.weight[j][0].i_offset == 0 )
1465 h->sh.weight[j][0].weightfn = NULL;
1471 h->sh.weight[0][0].i_denom = denom = h->sh.weight[j][0].i_denom;
1472 assert( x264_clip3( denom, 0, 7 ) == denom );
1474 assert( h->sh.weight[j][0].i_denom == denom );
1475 assert( x264_clip3( h->sh.weight[j][0].i_scale, 0, 127 ) == h->sh.weight[j][0].i_scale );
1476 assert( x264_clip3( h->sh.weight[j][0].i_offset, -128, 127 ) == h->sh.weight[j][0].i_offset );
1477 h->fenc->weighted[j] = h->mb.p_weight_buf[buffer_next++] +
1478 h->fenc->i_stride[0] * i_padv + PADH;
1482 //scale full resolution frame
1483 if( h->sh.weight[j][0].weightfn && h->param.i_threads == 1 )
1485 pixel *src = h->fref0[j]->filtered[0] - h->fref0[j]->i_stride[0]*i_padv - PADH;
1486 pixel *dst = h->fenc->weighted[j] - h->fenc->i_stride[0]*i_padv - PADH;
1487 int stride = h->fenc->i_stride[0];
1488 int width = h->fenc->i_width[0] + PADH*2;
1489 int height = h->fenc->i_lines[0] + i_padv*2;
1490 x264_weight_scale_plane( h, dst, stride, src, stride, width, height, &h->sh.weight[j][0] );
1491 h->fenc->i_lines_weighted = height;
1495 h->sh.weight[0][0].i_denom = 0;
1498 static inline void x264_reference_build_list( x264_t *h, int i_poc )
1502 /* build ref list 0/1 */
1503 h->mb.pic.i_fref[0] = h->i_ref0 = 0;
1504 h->mb.pic.i_fref[1] = h->i_ref1 = 0;
1505 if( h->sh.i_type == SLICE_TYPE_I )
1508 for( int i = 0; h->frames.reference[i]; i++ )
1510 if( h->frames.reference[i]->b_corrupt )
1512 if( h->frames.reference[i]->i_poc < i_poc )
1513 h->fref0[h->i_ref0++] = h->frames.reference[i];
1514 else if( h->frames.reference[i]->i_poc > i_poc )
1515 h->fref1[h->i_ref1++] = h->frames.reference[i];
1518 /* Order ref0 from higher to lower poc */
1522 for( int i = 0; i < h->i_ref0 - 1; i++ )
1524 if( h->fref0[i]->i_poc < h->fref0[i+1]->i_poc )
1526 XCHG( x264_frame_t*, h->fref0[i], h->fref0[i+1] );
1533 if( h->sh.i_mmco_remove_from_end )
1534 for( int i = h->i_ref0-1; i >= h->i_ref0 - h->sh.i_mmco_remove_from_end; i-- )
1536 int diff = h->i_frame_num - h->fref0[i]->i_frame_num;
1537 h->sh.mmco[h->sh.i_mmco_command_count].i_poc = h->fref0[i]->i_poc;
1538 h->sh.mmco[h->sh.i_mmco_command_count++].i_difference_of_pic_nums = diff;
1541 /* Order ref1 from lower to higher poc (bubble sort) for B-frame */
1545 for( int i = 0; i < h->i_ref1 - 1; i++ )
1547 if( h->fref1[i]->i_poc > h->fref1[i+1]->i_poc )
1549 XCHG( x264_frame_t*, h->fref1[i], h->fref1[i+1] );
1556 x264_reference_check_reorder( h );
1558 h->i_ref1 = X264_MIN( h->i_ref1, h->frames.i_max_ref1 );
1559 h->i_ref0 = X264_MIN( h->i_ref0, h->frames.i_max_ref0 );
1560 h->i_ref0 = X264_MIN( h->i_ref0, h->param.i_frame_reference ); // if reconfig() has lowered the limit
1562 /* add duplicates */
1563 if( h->fenc->i_type == X264_TYPE_P )
1566 if( h->param.analyse.i_weighted_pred == X264_WEIGHTP_SMART )
1569 w[1].weightfn = w[2].weightfn = NULL;
1570 if( h->param.rc.b_stat_read )
1571 x264_ratecontrol_set_weights( h, h->fenc );
1573 if( !h->fenc->weight[0][0].weightfn )
1575 h->fenc->weight[0][0].i_denom = 0;
1576 SET_WEIGHT( w[0], 1, 1, 0, -1 );
1577 idx = x264_weighted_reference_duplicate( h, 0, w );
1581 if( h->fenc->weight[0][0].i_scale == 1<<h->fenc->weight[0][0].i_denom )
1583 SET_WEIGHT( h->fenc->weight[0][0], 1, 1, 0, h->fenc->weight[0][0].i_offset );
1585 x264_weighted_reference_duplicate( h, 0, weight_none );
1586 if( h->fenc->weight[0][0].i_offset > -128 )
1588 w[0] = h->fenc->weight[0][0];
1590 h->mc.weight_cache( h, &w[0] );
1591 idx = x264_weighted_reference_duplicate( h, 0, w );
1595 else if( h->param.analyse.i_weighted_pred == X264_WEIGHTP_BLIND )
1597 //weighted offset=-1
1599 SET_WEIGHT( w[0], 1, 1, 0, -1 );
1600 h->fenc->weight[0][0].i_denom = 0;
1601 w[1].weightfn = w[2].weightfn = NULL;
1602 idx = x264_weighted_reference_duplicate( h, 0, w );
1604 h->mb.ref_blind_dupe = idx;
1607 assert( h->i_ref0 + h->i_ref1 <= 16 );
1608 h->mb.pic.i_fref[0] = h->i_ref0;
1609 h->mb.pic.i_fref[1] = h->i_ref1;
1612 static void x264_fdec_filter_row( x264_t *h, int mb_y, int b_inloop )
1614 /* mb_y is the mb to be encoded next, not the mb to be filtered here */
1615 int b_hpel = h->fdec->b_kept_as_ref;
1616 int b_deblock = h->sh.i_disable_deblocking_filter_idc != 1;
1617 int b_end = mb_y == h->i_threadslice_end;
1618 int b_measure_quality = 1;
1619 int min_y = mb_y - (1 << h->sh.b_mbaff);
1620 int b_start = min_y == h->i_threadslice_start;
1621 int max_y = b_end ? h->i_threadslice_end : mb_y;
1622 b_deblock &= b_hpel || h->param.psz_dump_yuv;
1623 if( h->param.b_sliced_threads && b_start && min_y && !b_inloop )
1625 b_deblock = 0; /* We already deblocked on the inloop pass. */
1626 b_measure_quality = 0; /* We already measured quality on the inloop pass. */
1628 if( mb_y & h->sh.b_mbaff )
1630 if( min_y < h->i_threadslice_start )
1633 if( !b_end && b_inloop )
1634 for( int j = 0; j <= h->sh.b_mbaff; j++ )
1635 for( int i = 0; i < 3; i++ )
1637 memcpy( h->intra_border_backup[j][i],
1638 h->fdec->plane[i] + ((mb_y*16 >> !!i) + j - 1 - h->sh.b_mbaff) * h->fdec->i_stride[i],
1639 (h->mb.i_mb_width*16 >> !!i) * sizeof(pixel) );
1643 for( int y = min_y; y < max_y; y += (1 << h->sh.b_mbaff) )
1644 x264_frame_deblock_row( h, y );
1648 int end = mb_y == h->mb.i_mb_height;
1649 x264_frame_expand_border( h, h->fdec, min_y, end );
1650 if( h->param.analyse.i_subpel_refine )
1652 x264_frame_filter( h, h->fdec, min_y, end );
1653 x264_frame_expand_border_filtered( h, h->fdec, min_y, end );
1657 if( h->i_thread_frames > 1 && h->fdec->b_kept_as_ref )
1658 x264_frame_cond_broadcast( h->fdec, mb_y*16 + (b_end ? 10000 : -(X264_THREAD_HEIGHT << h->sh.b_mbaff)) );
1660 min_y = min_y*16 - 8 * !b_start;
1661 max_y = b_end ? X264_MIN( h->i_threadslice_end*16 , h->param.i_height ) : mb_y*16 - 8;
1663 if( b_measure_quality )
1665 if( h->param.analyse.b_psnr )
1666 for( int i = 0; i < 3; i++ )
1667 h->stat.frame.i_ssd[i] +=
1668 x264_pixel_ssd_wxh( &h->pixf,
1669 h->fdec->plane[i] + (min_y>>!!i) * h->fdec->i_stride[i], h->fdec->i_stride[i],
1670 h->fenc->plane[i] + (min_y>>!!i) * h->fenc->i_stride[i], h->fenc->i_stride[i],
1671 h->param.i_width >> !!i, (max_y-min_y) >> !!i );
1673 if( h->param.analyse.b_ssim )
1676 /* offset by 2 pixels to avoid alignment of ssim blocks with dct blocks,
1677 * and overlap by 4 */
1678 min_y += b_start ? 2 : -6;
1679 h->stat.frame.f_ssim +=
1680 x264_pixel_ssim_wxh( &h->pixf,
1681 h->fdec->plane[0] + 2+min_y*h->fdec->i_stride[0], h->fdec->i_stride[0],
1682 h->fenc->plane[0] + 2+min_y*h->fenc->i_stride[0], h->fenc->i_stride[0],
1683 h->param.i_width-2, max_y-min_y, h->scratch_buffer );
1688 static inline int x264_reference_update( x264_t *h )
1690 if( !h->fdec->b_kept_as_ref )
1692 if( h->i_thread_frames > 1 )
1694 x264_frame_push_unused( h, h->fdec );
1695 h->fdec = x264_frame_pop_unused( h, 1 );
1702 /* apply mmco from previous frame. */
1703 for( int i = 0; i < h->sh.i_mmco_command_count; i++ )
1704 for( int j = 0; h->frames.reference[j]; j++ )
1705 if( h->frames.reference[j]->i_poc == h->sh.mmco[i].i_poc )
1706 x264_frame_push_unused( h, x264_frame_shift( &h->frames.reference[j] ) );
1708 /* move frame in the buffer */
1709 x264_frame_push( h->frames.reference, h->fdec );
1710 if( h->frames.reference[h->sps->i_num_ref_frames] )
1711 x264_frame_push_unused( h, x264_frame_shift( h->frames.reference ) );
1712 h->fdec = x264_frame_pop_unused( h, 1 );
1718 static inline void x264_reference_reset( x264_t *h )
1720 while( h->frames.reference[0] )
1721 x264_frame_push_unused( h, x264_frame_pop( h->frames.reference ) );
1726 static inline void x264_reference_hierarchy_reset( x264_t *h )
1729 int b_hasdelayframe = 0;
1731 /* look for delay frames -- chain must only contain frames that are disposable */
1732 for( int i = 0; h->frames.current[i] && IS_DISPOSABLE( h->frames.current[i]->i_type ); i++ )
1733 b_hasdelayframe |= h->frames.current[i]->i_coded
1734 != h->frames.current[i]->i_frame + h->sps->vui.i_num_reorder_frames;
1736 /* This function must handle b-pyramid and clear frames for open-gop */
1737 if( h->param.i_bframe_pyramid != X264_B_PYRAMID_STRICT && !b_hasdelayframe && h->frames.i_poc_last_open_gop == -1 )
1740 /* Remove last BREF. There will never be old BREFs in the
1741 * dpb during a BREF decode when pyramid == STRICT */
1742 for( ref = 0; h->frames.reference[ref]; ref++ )
1744 if( ( h->param.i_bframe_pyramid == X264_B_PYRAMID_STRICT
1745 && h->frames.reference[ref]->i_type == X264_TYPE_BREF )
1746 || ( h->frames.reference[ref]->i_poc < h->frames.i_poc_last_open_gop
1747 && h->sh.i_type != SLICE_TYPE_B ) )
1749 int diff = h->i_frame_num - h->frames.reference[ref]->i_frame_num;
1750 h->sh.mmco[h->sh.i_mmco_command_count].i_difference_of_pic_nums = diff;
1751 h->sh.mmco[h->sh.i_mmco_command_count++].i_poc = h->frames.reference[ref]->i_poc;
1752 x264_frame_push_unused( h, x264_frame_shift( &h->frames.reference[ref] ) );
1753 h->b_ref_reorder[0] = 1;
1758 /* Prepare room in the dpb for the delayed display time of the later b-frame's */
1759 if( h->param.i_bframe_pyramid )
1760 h->sh.i_mmco_remove_from_end = X264_MAX( ref + 2 - h->frames.i_max_dpb, 0 );
1763 static inline void x264_slice_init( x264_t *h, int i_nal_type, int i_global_qp )
1765 /* ------------------------ Create slice header ----------------------- */
1766 if( i_nal_type == NAL_SLICE_IDR )
1768 x264_slice_header_init( h, &h->sh, h->sps, h->pps, h->i_idr_pic_id, h->i_frame_num, i_global_qp );
1771 h->i_idr_pic_id = ( h->i_idr_pic_id + 1 ) % 65536;
1775 x264_slice_header_init( h, &h->sh, h->sps, h->pps, -1, h->i_frame_num, i_global_qp );
1777 h->sh.i_num_ref_idx_l0_active = h->i_ref0 <= 0 ? 1 : h->i_ref0;
1778 h->sh.i_num_ref_idx_l1_active = h->i_ref1 <= 0 ? 1 : h->i_ref1;
1779 if( h->sh.i_num_ref_idx_l0_active != h->pps->i_num_ref_idx_l0_default_active ||
1780 (h->sh.i_type == SLICE_TYPE_B && h->sh.i_num_ref_idx_l1_active != h->pps->i_num_ref_idx_l1_default_active) )
1782 h->sh.b_num_ref_idx_override = 1;
1786 h->fdec->i_frame_num = h->sh.i_frame_num;
1788 if( h->sps->i_poc_type == 0 )
1790 h->sh.i_poc = h->fdec->i_poc;
1791 if( h->param.b_interlaced )
1793 h->sh.i_delta_poc_bottom = h->param.b_tff ? 1 : -1;
1794 if( h->sh.i_delta_poc_bottom == -1 )
1795 h->sh.i_poc = h->fdec->i_poc + 1;
1798 h->sh.i_delta_poc_bottom = 0;
1800 else if( h->sps->i_poc_type == 1 )
1802 /* FIXME TODO FIXME */
1806 /* Nothing to do ? */
1809 x264_macroblock_slice_init( h );
1812 static int x264_slice_write( x264_t *h )
1815 int mb_xy, i_mb_x, i_mb_y;
1816 int i_skip_bak = 0; /* Shut up GCC. */
1818 x264_cabac_t cabac_bak;
1819 uint8_t cabac_prevbyte_bak = 0; /* Shut up GCC. */
1820 /* Assume no more than 3 bytes of NALU escaping.
1821 * NALUs other than the first use a 3-byte startcode. */
1822 int overhead_guess = (NALU_OVERHEAD - (h->param.b_annexb && h->out.i_nal)) + 3;
1823 int slice_max_size = h->param.i_slice_max_size > 0 ? (h->param.i_slice_max_size-overhead_guess)*8 : INT_MAX;
1824 int starting_bits = bs_pos(&h->out.bs);
1825 int b_deblock = h->sh.i_disable_deblocking_filter_idc != 1;
1826 int b_hpel = h->fdec->b_kept_as_ref;
1827 b_deblock &= b_hpel || h->param.psz_dump_yuv;
1828 bs_realign( &h->out.bs );
1831 x264_nal_start( h, h->i_nal_type, h->i_nal_ref_idc );
1832 h->out.nal[h->out.i_nal].i_first_mb = h->sh.i_first_mb;
1835 x264_macroblock_thread_init( h );
1837 /* If this isn't the first slice in the threadslice, set the slice QP
1838 * equal to the last QP in the previous slice for more accurate
1839 * CABAC initialization. */
1840 if( h->sh.i_first_mb != h->i_threadslice_start * h->mb.i_mb_width )
1842 h->sh.i_qp = h->mb.i_last_qp;
1843 h->sh.i_qp_delta = h->sh.i_qp - h->pps->i_pic_init_qp;
1846 x264_slice_header_write( &h->out.bs, &h->sh, h->i_nal_ref_idc );
1847 if( h->param.b_cabac )
1849 /* alignment needed */
1850 bs_align_1( &h->out.bs );
1853 x264_cabac_context_init( &h->cabac, h->sh.i_type, x264_clip3( h->sh.i_qp-QP_BD_OFFSET, 0, 51 ), h->sh.i_cabac_init_idc );
1854 x264_cabac_encode_init ( &h->cabac, h->out.bs.p, h->out.bs.p_end );
1856 h->mb.i_last_qp = h->sh.i_qp;
1857 h->mb.i_last_dqp = 0;
1859 i_mb_y = h->sh.i_first_mb / h->mb.i_mb_width;
1860 i_mb_x = h->sh.i_first_mb % h->mb.i_mb_width;
1863 while( (mb_xy = i_mb_x + i_mb_y * h->mb.i_mb_width) <= h->sh.i_last_mb )
1865 int mb_spos = bs_pos(&h->out.bs) + x264_cabac_pos(&h->cabac);
1866 if( h->param.i_slice_max_size > 0 )
1868 /* We don't need the contexts because flushing the CABAC encoder has no context
1869 * dependency and macroblocks are only re-encoded in the case where a slice is
1870 * ended (and thus the content of all contexts are thrown away). */
1871 if( h->param.b_cabac )
1873 memcpy( &cabac_bak, &h->cabac, offsetof(x264_cabac_t, f8_bits_encoded) );
1874 /* x264's CABAC writer modifies the previous byte during carry, so it has to be
1876 cabac_prevbyte_bak = h->cabac.p[-1];
1881 i_skip_bak = i_skip;
1885 if( i_mb_x == 0 && !h->mb.b_reencode_mb )
1886 x264_fdec_filter_row( h, i_mb_y, 1 );
1889 x264_macroblock_cache_load( h, i_mb_x, i_mb_y );
1891 x264_macroblock_analyse( h );
1893 /* encode this macroblock -> be careful it can change the mb type to P_SKIP if needed */
1894 x264_macroblock_encode( h );
1896 if( x264_bitstream_check_buffer( h ) )
1899 if( h->param.b_cabac )
1901 if( mb_xy > h->sh.i_first_mb && !(h->sh.b_mbaff && (i_mb_y&1)) )
1902 x264_cabac_encode_terminal( &h->cabac );
1904 if( IS_SKIP( h->mb.i_type ) )
1905 x264_cabac_mb_skip( h, 1 );
1908 if( h->sh.i_type != SLICE_TYPE_I )
1909 x264_cabac_mb_skip( h, 0 );
1910 x264_macroblock_write_cabac( h, &h->cabac );
1915 if( IS_SKIP( h->mb.i_type ) )
1919 if( h->sh.i_type != SLICE_TYPE_I )
1921 bs_write_ue( &h->out.bs, i_skip ); /* skip run */
1924 x264_macroblock_write_cavlc( h );
1928 int total_bits = bs_pos(&h->out.bs) + x264_cabac_pos(&h->cabac);
1929 int mb_size = total_bits - mb_spos;
1931 /* We'll just re-encode this last macroblock if we go over the max slice size. */
1932 if( total_bits - starting_bits > slice_max_size && !h->mb.b_reencode_mb )
1934 if( mb_xy != h->sh.i_first_mb )
1936 if( h->param.b_cabac )
1938 memcpy( &h->cabac, &cabac_bak, offsetof(x264_cabac_t, f8_bits_encoded) );
1939 h->cabac.p[-1] = cabac_prevbyte_bak;
1944 i_skip = i_skip_bak;
1946 h->mb.b_reencode_mb = 1;
1947 h->sh.i_last_mb = mb_xy-1;
1952 h->sh.i_last_mb = mb_xy;
1953 h->mb.b_reencode_mb = 0;
1957 h->mb.b_reencode_mb = 0;
1960 if( h->param.b_visualize )
1961 x264_visualize_mb( h );
1965 x264_macroblock_cache_save( h );
1967 /* accumulate mb stats */
1968 h->stat.frame.i_mb_count[h->mb.i_type]++;
1970 int b_intra = IS_INTRA( h->mb.i_type );
1971 if( h->param.i_log_level >= X264_LOG_INFO || h->param.rc.b_stat_write )
1973 if( !b_intra && !IS_SKIP( h->mb.i_type ) && !IS_DIRECT( h->mb.i_type ) )
1975 if( h->mb.i_partition != D_8x8 )
1976 h->stat.frame.i_mb_partition[h->mb.i_partition] += 4;
1978 for( int i = 0; i < 4; i++ )
1979 h->stat.frame.i_mb_partition[h->mb.i_sub_partition[i]] ++;
1980 if( h->param.i_frame_reference > 1 )
1981 for( int i_list = 0; i_list <= (h->sh.i_type == SLICE_TYPE_B); i_list++ )
1982 for( int i = 0; i < 4; i++ )
1984 int i_ref = h->mb.cache.ref[i_list][ x264_scan8[4*i] ];
1986 h->stat.frame.i_mb_count_ref[i_list][i_ref] ++;
1991 if( h->param.i_log_level >= X264_LOG_INFO )
1993 if( h->mb.i_cbp_luma | h->mb.i_cbp_chroma )
1995 int cbpsum = (h->mb.i_cbp_luma&1) + ((h->mb.i_cbp_luma>>1)&1)
1996 + ((h->mb.i_cbp_luma>>2)&1) + (h->mb.i_cbp_luma>>3);
1997 h->stat.frame.i_mb_cbp[!b_intra + 0] += cbpsum;
1998 h->stat.frame.i_mb_cbp[!b_intra + 2] += !!h->mb.i_cbp_chroma;
1999 h->stat.frame.i_mb_cbp[!b_intra + 4] += h->mb.i_cbp_chroma >> 1;
2001 if( h->mb.i_cbp_luma && !b_intra )
2003 h->stat.frame.i_mb_count_8x8dct[0] ++;
2004 h->stat.frame.i_mb_count_8x8dct[1] += h->mb.b_transform_8x8;
2006 if( b_intra && h->mb.i_type != I_PCM )
2008 if( h->mb.i_type == I_16x16 )
2009 h->stat.frame.i_mb_pred_mode[0][h->mb.i_intra16x16_pred_mode]++;
2010 else if( h->mb.i_type == I_8x8 )
2011 for( int i = 0; i < 16; i += 4 )
2012 h->stat.frame.i_mb_pred_mode[1][h->mb.cache.intra4x4_pred_mode[x264_scan8[i]]]++;
2013 else //if( h->mb.i_type == I_4x4 )
2014 for( int i = 0; i < 16; i++ )
2015 h->stat.frame.i_mb_pred_mode[2][h->mb.cache.intra4x4_pred_mode[x264_scan8[i]]]++;
2016 h->stat.frame.i_mb_pred_mode[3][x264_mb_pred_mode8x8c_fix[h->mb.i_chroma_pred_mode]]++;
2020 /* calculate deblock strength values (actual deblocking is done per-row along with hpel) */
2023 int mvy_limit = 4 >> h->sh.b_mbaff;
2024 uint8_t (*bs)[4][4] = h->deblock_strength[h->mb.i_mb_y&h->sh.b_mbaff][h->mb.i_mb_x];
2025 x264_macroblock_cache_load_deblock( h );
2026 if( IS_INTRA( h->mb.type[h->mb.i_mb_xy] ) )
2027 memset( bs, 3, 2*4*4*sizeof(uint8_t) );
2029 h->loopf.deblock_strength( h->mb.cache.non_zero_count, h->mb.cache.ref, h->mb.cache.mv,
2030 bs, mvy_limit, h->sh.i_type == SLICE_TYPE_B );
2033 x264_ratecontrol_mb( h, mb_size );
2037 i_mb_x += i_mb_y & 1;
2038 i_mb_y ^= i_mb_x < h->mb.i_mb_width;
2042 if( i_mb_x == h->mb.i_mb_width )
2048 h->out.nal[h->out.i_nal].i_last_mb = h->sh.i_last_mb;
2050 if( h->param.b_cabac )
2052 x264_cabac_encode_flush( h, &h->cabac );
2053 h->out.bs.p = h->cabac.p;
2058 bs_write_ue( &h->out.bs, i_skip ); /* last skip run */
2059 /* rbsp_slice_trailing_bits */
2060 bs_rbsp_trailing( &h->out.bs );
2061 bs_flush( &h->out.bs );
2063 if( x264_nal_end( h ) )
2066 if( h->sh.i_last_mb == (h->i_threadslice_end * h->mb.i_mb_width - 1) )
2068 h->stat.frame.i_misc_bits = bs_pos( &h->out.bs )
2069 + (h->out.i_nal*NALU_OVERHEAD * 8)
2070 - h->stat.frame.i_tex_bits
2071 - h->stat.frame.i_mv_bits;
2072 x264_fdec_filter_row( h, h->i_threadslice_end, 1 );
2078 static void x264_thread_sync_context( x264_t *dst, x264_t *src )
2083 // reference counting
2084 for( x264_frame_t **f = src->frames.reference; *f; f++ )
2085 (*f)->i_reference_count++;
2086 for( x264_frame_t **f = dst->frames.reference; *f; f++ )
2087 x264_frame_push_unused( src, *f );
2088 src->fdec->i_reference_count++;
2089 x264_frame_push_unused( src, dst->fdec );
2091 // copy everything except the per-thread pointers and the constants.
2092 memcpy( &dst->i_frame, &src->i_frame, offsetof(x264_t, mb.type) - offsetof(x264_t, i_frame) );
2093 dst->param = src->param;
2094 dst->stat = src->stat;
2097 static void x264_thread_sync_stat( x264_t *dst, x264_t *src )
2101 memcpy( &dst->stat.i_frame_count, &src->stat.i_frame_count, sizeof(dst->stat) - sizeof(dst->stat.frame) );
2104 static void *x264_slices_write( x264_t *h )
2106 int i_slice_num = 0;
2107 int last_thread_mb = h->sh.i_last_mb;
2110 if( h->param.b_visualize )
2111 if( x264_visualize_init( h ) )
2116 memset( &h->stat.frame, 0, sizeof(h->stat.frame) );
2117 h->mb.b_reencode_mb = 0;
2118 while( h->sh.i_first_mb <= last_thread_mb )
2120 h->sh.i_last_mb = last_thread_mb;
2121 if( h->param.i_slice_max_mbs )
2122 h->sh.i_last_mb = h->sh.i_first_mb + h->param.i_slice_max_mbs - 1;
2123 else if( h->param.i_slice_count && !h->param.b_sliced_threads )
2125 int height = h->mb.i_mb_height >> h->param.b_interlaced;
2126 int width = h->mb.i_mb_width << h->param.b_interlaced;
2128 h->sh.i_last_mb = (height * i_slice_num + h->param.i_slice_count/2) / h->param.i_slice_count * width - 1;
2130 h->sh.i_last_mb = X264_MIN( h->sh.i_last_mb, last_thread_mb );
2131 if( x264_stack_align( x264_slice_write, h ) )
2133 h->sh.i_first_mb = h->sh.i_last_mb + 1;
2137 if( h->param.b_visualize )
2139 x264_visualize_show( h );
2140 x264_visualize_close( h );
2147 static int x264_threaded_slices_write( x264_t *h )
2149 /* set first/last mb and sync contexts */
2150 for( int i = 0; i < h->param.i_threads; i++ )
2152 x264_t *t = h->thread[i];
2155 t->param = h->param;
2156 memcpy( &t->i_frame, &h->i_frame, offsetof(x264_t, rc) - offsetof(x264_t, i_frame) );
2158 int height = h->mb.i_mb_height >> h->param.b_interlaced;
2159 t->i_threadslice_start = ((height * i + h->param.i_slice_count/2) / h->param.i_threads) << h->param.b_interlaced;
2160 t->i_threadslice_end = ((height * (i+1) + h->param.i_slice_count/2) / h->param.i_threads) << h->param.b_interlaced;
2161 t->sh.i_first_mb = t->i_threadslice_start * h->mb.i_mb_width;
2162 t->sh.i_last_mb = t->i_threadslice_end * h->mb.i_mb_width - 1;
2165 x264_stack_align( x264_analyse_weight_frame, h, h->mb.i_mb_height*16 + 16 );
2167 x264_threads_distribute_ratecontrol( h );
2170 for( int i = 0; i < h->param.i_threads; i++ )
2172 x264_threadpool_run( h->threadpool, (void*)x264_slices_write, h->thread[i] );
2173 h->thread[i]->b_thread_active = 1;
2175 for( int i = 0; i < h->param.i_threads; i++ )
2177 h->thread[i]->b_thread_active = 0;
2178 if( (intptr_t)x264_threadpool_wait( h->threadpool, h->thread[i] ) )
2182 /* Go back and fix up the hpel on the borders between slices. */
2183 for( int i = 1; i < h->param.i_threads; i++ )
2185 x264_fdec_filter_row( h->thread[i], h->thread[i]->i_threadslice_start + 1, 0 );
2187 x264_fdec_filter_row( h->thread[i], h->thread[i]->i_threadslice_start + 2, 0 );
2190 x264_threads_merge_ratecontrol( h );
2192 for( int i = 1; i < h->param.i_threads; i++ )
2194 x264_t *t = h->thread[i];
2195 for( int j = 0; j < t->out.i_nal; j++ )
2197 h->out.nal[h->out.i_nal] = t->out.nal[j];
2199 x264_nal_check_buffer( h );
2201 /* All entries in stat.frame are ints except for ssd/ssim. */
2202 for( int j = 0; j < (offsetof(x264_t,stat.frame.i_ssd) - offsetof(x264_t,stat.frame.i_mv_bits)) / sizeof(int); j++ )
2203 ((int*)&h->stat.frame)[j] += ((int*)&t->stat.frame)[j];
2204 for( int j = 0; j < 3; j++ )
2205 h->stat.frame.i_ssd[j] += t->stat.frame.i_ssd[j];
2206 h->stat.frame.f_ssim += t->stat.frame.f_ssim;
2212 void x264_encoder_intra_refresh( x264_t *h )
2214 h = h->thread[h->i_thread_phase];
2215 h->b_queued_intra_refresh = 1;
2218 int x264_encoder_invalidate_reference( x264_t *h, int64_t pts )
2220 if( h->param.i_bframe )
2222 x264_log( h, X264_LOG_ERROR, "x264_encoder_invalidate_reference is not supported with B-frames enabled\n" );
2225 if( h->param.b_intra_refresh )
2227 x264_log( h, X264_LOG_ERROR, "x264_encoder_invalidate_reference is not supported with intra refresh enabled\n" );
2230 h = h->thread[h->i_thread_phase];
2231 h->i_reference_invalidate_pts = pts;
2235 /****************************************************************************
2236 * x264_encoder_encode:
2237 * XXX: i_poc : is the poc of the current given picture
2238 * i_frame : is the number of the frame being coded
2239 * ex: type frame poc
2247 ****************************************************************************/
2248 int x264_encoder_encode( x264_t *h,
2249 x264_nal_t **pp_nal, int *pi_nal,
2250 x264_picture_t *pic_in,
2251 x264_picture_t *pic_out )
2253 x264_t *thread_current, *thread_prev, *thread_oldest;
2254 int i_nal_type, i_nal_ref_idc, i_global_qp;
2255 int overhead = NALU_OVERHEAD;
2257 if( h->i_thread_frames > 1 )
2259 thread_prev = h->thread[ h->i_thread_phase ];
2260 h->i_thread_phase = (h->i_thread_phase + 1) % h->i_thread_frames;
2261 thread_current = h->thread[ h->i_thread_phase ];
2262 thread_oldest = h->thread[ (h->i_thread_phase + 1) % h->i_thread_frames ];
2263 x264_thread_sync_context( thread_current, thread_prev );
2264 x264_thread_sync_ratecontrol( thread_current, thread_prev, thread_oldest );
2273 if( h->i_thread_frames == 1 && h->param.cpu&X264_CPU_SSE_MISALIGN )
2274 x264_cpu_mask_misalign_sse();
2277 // ok to call this before encoding any frames, since the initial values of fdec have b_kept_as_ref=0
2278 if( x264_reference_update( h ) )
2280 h->fdec->i_lines_completed = -1;
2286 /* ------------------- Setup new frame from picture -------------------- */
2287 if( pic_in != NULL )
2289 /* 1: Copy the picture to a frame and move it to a buffer */
2290 x264_frame_t *fenc = x264_frame_pop_unused( h, 0 );
2294 if( x264_frame_copy_picture( h, fenc, pic_in ) < 0 )
2297 if( h->param.i_width != 16 * h->mb.i_mb_width ||
2298 h->param.i_height != 16 * h->mb.i_mb_height )
2299 x264_frame_expand_border_mod16( h, fenc );
2301 fenc->i_frame = h->frames.i_input++;
2303 if( h->frames.i_bframe_delay && fenc->i_frame == h->frames.i_bframe_delay )
2304 h->frames.i_bframe_delay_time = fenc->i_pts;
2306 if( h->param.b_vfr_input && fenc->i_pts <= h->frames.i_largest_pts )
2307 x264_log( h, X264_LOG_WARNING, "non-strictly-monotonic PTS\n" );
2309 h->frames.i_second_largest_pts = h->frames.i_largest_pts;
2310 h->frames.i_largest_pts = fenc->i_pts;
2312 if( (fenc->i_pic_struct < PIC_STRUCT_AUTO) || (fenc->i_pic_struct > PIC_STRUCT_TRIPLE) )
2313 fenc->i_pic_struct = PIC_STRUCT_AUTO;
2315 if( fenc->i_pic_struct == PIC_STRUCT_AUTO )
2317 int b_interlaced = fenc->param ? fenc->param->b_interlaced : h->param.b_interlaced;
2320 int b_tff = fenc->param ? fenc->param->b_tff : h->param.b_tff;
2321 fenc->i_pic_struct = b_tff ? PIC_STRUCT_TOP_BOTTOM : PIC_STRUCT_BOTTOM_TOP;
2324 fenc->i_pic_struct = PIC_STRUCT_PROGRESSIVE;
2327 if( h->param.rc.b_mb_tree && h->param.rc.b_stat_read )
2329 if( x264_macroblock_tree_read( h, fenc, pic_in->prop.quant_offsets ) )
2333 x264_adaptive_quant_frame( h, fenc, pic_in->prop.quant_offsets );
2335 if( pic_in->prop.quant_offsets_free )
2336 pic_in->prop.quant_offsets_free( pic_in->prop.quant_offsets );
2338 if( h->frames.b_have_lowres )
2339 x264_frame_init_lowres( h, fenc );
2341 /* 2: Place the frame into the queue for its slice type decision */
2342 x264_lookahead_put_frame( h, fenc );
2344 if( h->frames.i_input <= h->frames.i_delay + 1 - h->i_thread_frames )
2346 /* Nothing yet to encode, waiting for filling of buffers */
2347 pic_out->i_type = X264_TYPE_AUTO;
2353 /* signal kills for lookahead thread */
2354 x264_pthread_mutex_lock( &h->lookahead->ifbuf.mutex );
2355 h->lookahead->b_exit_thread = 1;
2356 x264_pthread_cond_broadcast( &h->lookahead->ifbuf.cv_fill );
2357 x264_pthread_mutex_unlock( &h->lookahead->ifbuf.mutex );
2361 /* 3: The picture is analyzed in the lookahead */
2362 if( !h->frames.current[0] )
2363 x264_lookahead_get_frames( h );
2365 if( !h->frames.current[0] && x264_lookahead_is_empty( h ) )
2366 return x264_encoder_frame_end( thread_oldest, thread_current, pp_nal, pi_nal, pic_out );
2368 /* ------------------- Get frame to be encoded ------------------------- */
2369 /* 4: get picture to encode */
2370 h->fenc = x264_frame_shift( h->frames.current );
2371 if( h->i_frame == h->i_thread_frames - 1 )
2372 h->i_reordered_pts_delay = h->fenc->i_reordered_pts;
2373 if( h->fenc->param )
2375 x264_encoder_reconfig( h, h->fenc->param );
2376 if( h->fenc->param->param_free )
2377 h->fenc->param->param_free( h->fenc->param );
2380 if( h->i_reference_invalidate_pts )
2382 if( h->i_reference_invalidate_pts >= h->i_last_idr_pts )
2383 for( int i = 0; h->frames.reference[i]; i++ )
2384 if( h->i_reference_invalidate_pts <= h->frames.reference[i]->i_pts )
2385 h->frames.reference[i]->b_corrupt = 1;
2386 h->i_reference_invalidate_pts = 0;
2389 if( !IS_X264_TYPE_I( h->fenc->i_type ) )
2391 int valid_refs_left = 0;
2392 for( int i = 0; h->frames.reference[i]; i++ )
2393 if( !h->frames.reference[i]->b_corrupt )
2395 /* No valid reference frames left: force an IDR. */
2396 if( !valid_refs_left )
2398 h->fenc->b_keyframe = 1;
2399 h->fenc->i_type = X264_TYPE_IDR;
2403 if( h->fenc->b_keyframe )
2405 h->frames.i_last_keyframe = h->fenc->i_frame;
2406 if( h->fenc->i_type == X264_TYPE_IDR )
2409 h->frames.i_last_idr = h->fenc->i_frame;
2412 h->sh.i_mmco_command_count =
2413 h->sh.i_mmco_remove_from_end = 0;
2414 h->b_ref_reorder[0] =
2415 h->b_ref_reorder[1] = 0;
2417 h->fenc->i_poc = 2 * ( h->fenc->i_frame - X264_MAX( h->frames.i_last_idr, 0 ) );
2419 /* ------------------- Setup frame context ----------------------------- */
2420 /* 5: Init data dependent of frame type */
2421 if( h->fenc->i_type == X264_TYPE_IDR )
2423 /* reset ref pictures */
2424 i_nal_type = NAL_SLICE_IDR;
2425 i_nal_ref_idc = NAL_PRIORITY_HIGHEST;
2426 h->sh.i_type = SLICE_TYPE_I;
2427 x264_reference_reset( h );
2428 h->frames.i_poc_last_open_gop = -1;
2430 else if( h->fenc->i_type == X264_TYPE_I )
2432 i_nal_type = NAL_SLICE;
2433 i_nal_ref_idc = NAL_PRIORITY_HIGH; /* Not completely true but for now it is (as all I/P are kept as ref)*/
2434 h->sh.i_type = SLICE_TYPE_I;
2435 x264_reference_hierarchy_reset( h );
2436 if( h->param.i_open_gop )
2437 h->frames.i_poc_last_open_gop = h->fenc->b_keyframe ? h->fenc->i_poc : -1;
2439 else if( h->fenc->i_type == X264_TYPE_P )
2441 i_nal_type = NAL_SLICE;
2442 i_nal_ref_idc = NAL_PRIORITY_HIGH; /* Not completely true but for now it is (as all I/P are kept as ref)*/
2443 h->sh.i_type = SLICE_TYPE_P;
2444 x264_reference_hierarchy_reset( h );
2445 h->frames.i_poc_last_open_gop = -1;
2447 else if( h->fenc->i_type == X264_TYPE_BREF )
2449 i_nal_type = NAL_SLICE;
2450 i_nal_ref_idc = h->param.i_bframe_pyramid == X264_B_PYRAMID_STRICT ? NAL_PRIORITY_LOW : NAL_PRIORITY_HIGH;
2451 h->sh.i_type = SLICE_TYPE_B;
2452 x264_reference_hierarchy_reset( h );
2456 i_nal_type = NAL_SLICE;
2457 i_nal_ref_idc = NAL_PRIORITY_DISPOSABLE;
2458 h->sh.i_type = SLICE_TYPE_B;
2461 h->fdec->i_type = h->fenc->i_type;
2462 h->fdec->i_frame = h->fenc->i_frame;
2463 h->fenc->b_kept_as_ref =
2464 h->fdec->b_kept_as_ref = i_nal_ref_idc != NAL_PRIORITY_DISPOSABLE && h->param.i_keyint_max > 1;
2466 h->fdec->i_pts = h->fenc->i_pts *= h->i_dts_compress_multiplier;
2467 if( h->frames.i_bframe_delay )
2469 int64_t *prev_reordered_pts = thread_current->frames.i_prev_reordered_pts;
2470 if( h->i_frame <= h->frames.i_bframe_delay )
2472 if( h->i_dts_compress_multiplier == 1 )
2473 h->fdec->i_dts = h->fenc->i_reordered_pts - h->frames.i_bframe_delay_time;
2476 /* DTS compression */
2477 if( h->i_frame == 1 )
2478 thread_current->frames.i_init_delta = h->fenc->i_reordered_pts * h->i_dts_compress_multiplier;
2479 h->fdec->i_dts = h->i_frame * thread_current->frames.i_init_delta / h->i_dts_compress_multiplier;
2483 h->fdec->i_dts = prev_reordered_pts[ (h->i_frame - h->frames.i_bframe_delay) % h->frames.i_bframe_delay ];
2484 prev_reordered_pts[ h->i_frame % h->frames.i_bframe_delay ] = h->fenc->i_reordered_pts * h->i_dts_compress_multiplier;
2487 h->fdec->i_dts = h->fenc->i_reordered_pts;
2488 if( h->fenc->i_type == X264_TYPE_IDR )
2489 h->i_last_idr_pts = h->fdec->i_pts;
2491 /* ------------------- Init ----------------------------- */
2492 /* build ref list 0/1 */
2493 x264_reference_build_list( h, h->fdec->i_poc );
2495 /* ---------------------- Write the bitstream -------------------------- */
2496 /* Init bitstream context */
2497 if( h->param.b_sliced_threads )
2499 for( int i = 0; i < h->param.i_threads; i++ )
2501 bs_init( &h->thread[i]->out.bs, h->thread[i]->out.p_bitstream, h->thread[i]->out.i_bitstream );
2502 h->thread[i]->out.i_nal = 0;
2507 bs_init( &h->out.bs, h->out.p_bitstream, h->out.i_bitstream );
2511 if( h->param.b_aud )
2515 if( h->sh.i_type == SLICE_TYPE_I )
2517 else if( h->sh.i_type == SLICE_TYPE_P )
2519 else if( h->sh.i_type == SLICE_TYPE_B )
2524 x264_nal_start( h, NAL_AUD, NAL_PRIORITY_DISPOSABLE );
2525 bs_write( &h->out.bs, 3, pic_type );
2526 bs_rbsp_trailing( &h->out.bs );
2527 if( x264_nal_end( h ) )
2529 overhead += h->out.nal[h->out.i_nal-1].i_payload + NALU_OVERHEAD - (h->param.b_annexb && h->out.i_nal-1);
2532 h->i_nal_type = i_nal_type;
2533 h->i_nal_ref_idc = i_nal_ref_idc;
2535 if( h->param.b_intra_refresh )
2537 if( IS_X264_TYPE_I( h->fenc->i_type ) )
2539 h->fdec->i_frames_since_pir = 0;
2540 h->b_queued_intra_refresh = 0;
2541 /* PIR is currently only supported with ref == 1, so any intra frame effectively refreshes
2542 * the whole frame and counts as an intra refresh. */
2543 h->fdec->f_pir_position = h->mb.i_mb_width;
2545 else if( h->fenc->i_type == X264_TYPE_P )
2547 int pocdiff = (h->fdec->i_poc - h->fref0[0]->i_poc)/2;
2548 float increment = X264_MAX( ((float)h->mb.i_mb_width-1) / h->param.i_keyint_max, 1 );
2549 h->fdec->f_pir_position = h->fref0[0]->f_pir_position;
2550 h->fdec->i_frames_since_pir = h->fref0[0]->i_frames_since_pir + pocdiff;
2551 if( h->fdec->i_frames_since_pir >= h->param.i_keyint_max ||
2552 (h->b_queued_intra_refresh && h->fdec->f_pir_position + 0.5 >= h->mb.i_mb_width) )
2554 h->fdec->f_pir_position = 0;
2555 h->fdec->i_frames_since_pir = 0;
2556 h->b_queued_intra_refresh = 0;
2557 h->fenc->b_keyframe = 1;
2559 h->fdec->i_pir_start_col = h->fdec->f_pir_position+0.5;
2560 h->fdec->f_pir_position += increment * pocdiff;
2561 h->fdec->i_pir_end_col = h->fdec->f_pir_position+0.5;
2565 if( h->fenc->b_keyframe )
2567 /* Write SPS and PPS */
2568 if( h->param.b_repeat_headers )
2570 /* generate sequence parameters */
2571 x264_nal_start( h, NAL_SPS, NAL_PRIORITY_HIGHEST );
2572 x264_sps_write( &h->out.bs, h->sps );
2573 if( x264_nal_end( h ) )
2575 overhead += h->out.nal[h->out.i_nal-1].i_payload + NALU_OVERHEAD;
2577 /* generate picture parameters */
2578 x264_nal_start( h, NAL_PPS, NAL_PRIORITY_HIGHEST );
2579 x264_pps_write( &h->out.bs, h->pps );
2580 if( x264_nal_end( h ) )
2582 overhead += h->out.nal[h->out.i_nal-1].i_payload + NALU_OVERHEAD;
2585 /* buffering period sei is written in x264_encoder_frame_end */
2587 if( h->param.b_repeat_headers && h->fenc->i_frame == 0 )
2589 /* identify ourself */
2590 x264_nal_start( h, NAL_SEI, NAL_PRIORITY_DISPOSABLE );
2591 if( x264_sei_version_write( h, &h->out.bs ) )
2593 if( x264_nal_end( h ) )
2595 overhead += h->out.nal[h->out.i_nal-1].i_payload + NALU_OVERHEAD - (h->param.b_annexb && h->out.i_nal-1);
2598 if( h->fenc->i_type != X264_TYPE_IDR )
2600 int time_to_recovery = h->param.i_open_gop ? 0 : X264_MIN( h->mb.i_mb_width - 1, h->param.i_keyint_max ) + h->param.i_bframe;
2601 x264_nal_start( h, NAL_SEI, NAL_PRIORITY_DISPOSABLE );
2602 x264_sei_recovery_point_write( h, &h->out.bs, time_to_recovery );
2604 overhead += h->out.nal[h->out.i_nal-1].i_payload + NALU_OVERHEAD - (h->param.b_annexb && h->out.i_nal-1);
2608 /* generate sei pic timing */
2609 if( h->sps->vui.b_pic_struct_present || h->sps->vui.b_nal_hrd_parameters_present )
2611 x264_nal_start( h, NAL_SEI, NAL_PRIORITY_DISPOSABLE );
2612 x264_sei_pic_timing_write( h, &h->out.bs );
2613 if( x264_nal_end( h ) )
2615 overhead += h->out.nal[h->out.i_nal-1].i_payload + NALU_OVERHEAD - (h->param.b_annexb && h->out.i_nal-1);
2618 /* Init the rate control */
2619 /* FIXME: Include slice header bit cost. */
2620 x264_ratecontrol_start( h, h->fenc->i_qpplus1, overhead*8 );
2621 i_global_qp = x264_ratecontrol_qp( h );
2623 pic_out->i_qpplus1 =
2624 h->fdec->i_qpplus1 = i_global_qp + 1;
2626 if( h->param.rc.b_stat_read && h->sh.i_type != SLICE_TYPE_I )
2628 x264_reference_build_list_optimal( h );
2629 x264_reference_check_reorder( h );
2633 h->fdec->i_poc_l0ref0 = h->fref0[0]->i_poc;
2635 if( h->sh.i_type == SLICE_TYPE_B )
2636 x264_macroblock_bipred_init( h );
2638 /*------------------------- Weights -------------------------------------*/
2639 x264_weighted_pred_init( h );
2641 /* ------------------------ Create slice header ----------------------- */
2642 x264_slice_init( h, i_nal_type, i_global_qp );
2644 if( i_nal_ref_idc != NAL_PRIORITY_DISPOSABLE )
2648 h->i_threadslice_start = 0;
2649 h->i_threadslice_end = h->mb.i_mb_height;
2650 if( h->i_thread_frames > 1 )
2652 x264_threadpool_run( h->threadpool, (void*)x264_slices_write, h );
2653 h->b_thread_active = 1;
2655 else if( h->param.b_sliced_threads )
2657 if( x264_threaded_slices_write( h ) )
2661 if( (intptr_t)x264_slices_write( h ) )
2664 return x264_encoder_frame_end( thread_oldest, thread_current, pp_nal, pi_nal, pic_out );
2667 static int x264_encoder_frame_end( x264_t *h, x264_t *thread_current,
2668 x264_nal_t **pp_nal, int *pi_nal,
2669 x264_picture_t *pic_out )
2671 char psz_message[80];
2673 if( h->b_thread_active )
2675 h->b_thread_active = 0;
2676 if( (intptr_t)x264_threadpool_wait( h->threadpool, h ) )
2681 pic_out->i_type = X264_TYPE_AUTO;
2686 /* generate sei buffering period and insert it into place */
2687 if( h->fenc->b_keyframe && h->sps->vui.b_nal_hrd_parameters_present )
2689 x264_hrd_fullness( h );
2690 x264_nal_start( h, NAL_SEI, NAL_PRIORITY_DISPOSABLE );
2691 x264_sei_buffering_period_write( h, &h->out.bs );
2692 if( x264_nal_end( h ) )
2694 /* buffering period sei must follow AUD, SPS and PPS and precede all other SEIs */
2696 while( h->out.nal[idx].i_type == NAL_AUD ||
2697 h->out.nal[idx].i_type == NAL_SPS ||
2698 h->out.nal[idx].i_type == NAL_PPS )
2700 x264_nal_t nal_tmp = h->out.nal[h->out.i_nal-1];
2701 memmove( &h->out.nal[idx+1], &h->out.nal[idx], (h->out.i_nal-idx-1)*sizeof(x264_nal_t) );
2702 h->out.nal[idx] = nal_tmp;
2705 int frame_size = x264_encoder_encapsulate_nals( h, 0 );
2707 /* Set output picture properties */
2708 pic_out->i_type = h->fenc->i_type;
2710 pic_out->b_keyframe = h->fenc->b_keyframe;
2712 pic_out->i_pts = h->fdec->i_pts;
2713 pic_out->i_dts = h->fdec->i_dts;
2715 if( pic_out->i_pts < pic_out->i_dts )
2716 x264_log( h, X264_LOG_WARNING, "invalid DTS: PTS is less than DTS\n" );
2718 pic_out->img.i_plane = h->fdec->i_plane;
2719 for( int i = 0; i < 3; i++ )
2721 pic_out->img.i_stride[i] = h->fdec->i_stride[i];
2722 // FIXME This breaks the API when pixel != uint8_t.
2723 pic_out->img.plane[i] = h->fdec->plane[i];
2726 x264_frame_push_unused( thread_current, h->fenc );
2728 /* ---------------------- Update encoder state ------------------------- */
2732 if( x264_ratecontrol_end( h, frame_size * 8, &filler ) < 0 )
2735 pic_out->hrd_timing = h->fenc->hrd_timing;
2740 overhead = (FILLER_OVERHEAD - h->param.b_annexb);
2741 if( h->param.i_slice_max_size && filler > h->param.i_slice_max_size )
2743 int next_size = filler - h->param.i_slice_max_size;
2744 int overflow = X264_MAX( overhead - next_size, 0 );
2745 f = h->param.i_slice_max_size - overhead - overflow;
2748 f = X264_MAX( 0, filler - overhead );
2750 x264_nal_start( h, NAL_FILLER, NAL_PRIORITY_DISPOSABLE );
2751 x264_filler_write( h, &h->out.bs, f );
2752 if( x264_nal_end( h ) )
2754 int total_size = x264_encoder_encapsulate_nals( h, h->out.i_nal-1 );
2755 frame_size += total_size;
2756 filler -= total_size;
2759 /* End bitstream, set output */
2760 *pi_nal = h->out.i_nal;
2761 *pp_nal = h->out.nal;
2765 x264_noise_reduction_update( h );
2767 /* ---------------------- Compute/Print statistics --------------------- */
2768 x264_thread_sync_stat( h, h->thread[0] );
2771 h->stat.i_frame_count[h->sh.i_type]++;
2772 h->stat.i_frame_size[h->sh.i_type] += frame_size;
2773 h->stat.f_frame_qp[h->sh.i_type] += h->fdec->f_qp_avg_aq;
2775 for( int i = 0; i < X264_MBTYPE_MAX; i++ )
2776 h->stat.i_mb_count[h->sh.i_type][i] += h->stat.frame.i_mb_count[i];
2777 for( int i = 0; i < X264_PARTTYPE_MAX; i++ )
2778 h->stat.i_mb_partition[h->sh.i_type][i] += h->stat.frame.i_mb_partition[i];
2779 for( int i = 0; i < 2; i++ )
2780 h->stat.i_mb_count_8x8dct[i] += h->stat.frame.i_mb_count_8x8dct[i];
2781 for( int i = 0; i < 6; i++ )
2782 h->stat.i_mb_cbp[i] += h->stat.frame.i_mb_cbp[i];
2783 for( int i = 0; i < 4; i++ )
2784 for( int j = 0; j < 13; j++ )
2785 h->stat.i_mb_pred_mode[i][j] += h->stat.frame.i_mb_pred_mode[i][j];
2786 if( h->sh.i_type != SLICE_TYPE_I )
2787 for( int i_list = 0; i_list < 2; i_list++ )
2788 for( int i = 0; i < 32; i++ )
2789 h->stat.i_mb_count_ref[h->sh.i_type][i_list][i] += h->stat.frame.i_mb_count_ref[i_list][i];
2790 if( h->sh.i_type == SLICE_TYPE_P )
2792 h->stat.i_consecutive_bframes[h->fdec->i_frame - h->fref0[0]->i_frame - 1]++;
2793 if( h->param.analyse.i_weighted_pred == X264_WEIGHTP_SMART )
2794 for( int i = 0; i < 3; i++ )
2795 for( int j = 0; j < h->i_ref0; j++ )
2796 if( h->sh.weight[0][i].i_denom != 0 )
2798 h->stat.i_wpred[i]++;
2802 if( h->sh.i_type == SLICE_TYPE_B )
2804 h->stat.i_direct_frames[ h->sh.b_direct_spatial_mv_pred ] ++;
2805 if( h->mb.b_direct_auto_write )
2807 //FIXME somewhat arbitrary time constants
2808 if( h->stat.i_direct_score[0] + h->stat.i_direct_score[1] > h->mb.i_mb_count )
2809 for( int i = 0; i < 2; i++ )
2810 h->stat.i_direct_score[i] = h->stat.i_direct_score[i] * 9/10;
2811 for( int i = 0; i < 2; i++ )
2812 h->stat.i_direct_score[i] += h->stat.frame.i_direct_score[i];
2816 psz_message[0] = '\0';
2817 if( h->param.analyse.b_psnr )
2820 h->stat.frame.i_ssd[0],
2821 h->stat.frame.i_ssd[1],
2822 h->stat.frame.i_ssd[2],
2825 h->stat.i_ssd_global[h->sh.i_type] += ssd[0] + ssd[1] + ssd[2];
2826 h->stat.f_psnr_average[h->sh.i_type] += x264_psnr( ssd[0] + ssd[1] + ssd[2], 3 * h->param.i_width * h->param.i_height / 2 );
2827 h->stat.f_psnr_mean_y[h->sh.i_type] += x264_psnr( ssd[0], h->param.i_width * h->param.i_height );
2828 h->stat.f_psnr_mean_u[h->sh.i_type] += x264_psnr( ssd[1], h->param.i_width * h->param.i_height / 4 );
2829 h->stat.f_psnr_mean_v[h->sh.i_type] += x264_psnr( ssd[2], h->param.i_width * h->param.i_height / 4 );
2831 snprintf( psz_message, 80, " PSNR Y:%5.2f U:%5.2f V:%5.2f",
2832 x264_psnr( ssd[0], h->param.i_width * h->param.i_height ),
2833 x264_psnr( ssd[1], h->param.i_width * h->param.i_height / 4),
2834 x264_psnr( ssd[2], h->param.i_width * h->param.i_height / 4) );
2837 if( h->param.analyse.b_ssim )
2839 double ssim_y = h->stat.frame.f_ssim
2840 / (((h->param.i_width-6)>>2) * ((h->param.i_height-6)>>2));
2841 h->stat.f_ssim_mean_y[h->sh.i_type] += ssim_y;
2842 snprintf( psz_message + strlen(psz_message), 80 - strlen(psz_message),
2843 " SSIM Y:%.5f", ssim_y );
2845 psz_message[79] = '\0';
2847 x264_log( h, X264_LOG_DEBUG,
2848 "frame=%4d QP=%.2f NAL=%d Slice:%c Poc:%-3d I:%-4d P:%-4d SKIP:%-4d size=%d bytes%s\n",
2850 h->fdec->f_qp_avg_aq,
2852 h->sh.i_type == SLICE_TYPE_I ? 'I' : (h->sh.i_type == SLICE_TYPE_P ? 'P' : 'B' ),
2854 h->stat.frame.i_mb_count_i,
2855 h->stat.frame.i_mb_count_p,
2856 h->stat.frame.i_mb_count_skip,
2860 // keep stats all in one place
2861 x264_thread_sync_stat( h->thread[0], h );
2862 // for the use of the next frame
2863 x264_thread_sync_stat( thread_current, h );
2865 #ifdef DEBUG_MB_TYPE
2867 static const char mb_chars[] = { 'i', 'i', 'I', 'C', 'P', '8', 'S',
2868 'D', '<', 'X', 'B', 'X', '>', 'B', 'B', 'B', 'B', '8', 'S' };
2869 for( int mb_xy = 0; mb_xy < h->mb.i_mb_width * h->mb.i_mb_height; mb_xy++ )
2871 if( h->mb.type[mb_xy] < X264_MBTYPE_MAX && h->mb.type[mb_xy] >= 0 )
2872 fprintf( stderr, "%c ", mb_chars[ h->mb.type[mb_xy] ] );
2874 fprintf( stderr, "? " );
2876 if( (mb_xy+1) % h->mb.i_mb_width == 0 )
2877 fprintf( stderr, "\n" );
2882 /* Remove duplicates, must be done near the end as breaks h->fref0 array
2883 * by freeing some of its pointers. */
2884 for( int i = 0; i < h->i_ref0; i++ )
2885 if( h->fref0[i] && h->fref0[i]->b_duplicate )
2887 x264_frame_push_blank_unused( h, h->fref0[i] );
2891 if( h->param.psz_dump_yuv )
2892 x264_frame_dump( h );
2897 static void x264_print_intra( int64_t *i_mb_count, double i_count, int b_print_pcm, char *intra )
2899 intra += sprintf( intra, "I16..4%s: %4.1f%% %4.1f%% %4.1f%%",
2900 b_print_pcm ? "..PCM" : "",
2901 i_mb_count[I_16x16]/ i_count,
2902 i_mb_count[I_8x8] / i_count,
2903 i_mb_count[I_4x4] / i_count );
2905 sprintf( intra, " %4.1f%%", i_mb_count[I_PCM] / i_count );
2908 /****************************************************************************
2909 * x264_encoder_close:
2910 ****************************************************************************/
2911 void x264_encoder_close ( x264_t *h )
2913 int64_t i_yuv_size = 3 * h->param.i_width * h->param.i_height / 2;
2914 int64_t i_mb_count_size[2][7] = {{0}};
2916 int b_print_pcm = h->stat.i_mb_count[SLICE_TYPE_I][I_PCM]
2917 || h->stat.i_mb_count[SLICE_TYPE_P][I_PCM]
2918 || h->stat.i_mb_count[SLICE_TYPE_B][I_PCM];
2920 x264_lookahead_delete( h );
2922 if( h->param.i_threads > 1 )
2923 x264_threadpool_delete( h->threadpool );
2924 if( h->i_thread_frames > 1 )
2926 for( int i = 0; i < h->i_thread_frames; i++ )
2927 if( h->thread[i]->b_thread_active )
2929 assert( h->thread[i]->fenc->i_reference_count == 1 );
2930 x264_frame_delete( h->thread[i]->fenc );
2933 x264_t *thread_prev = h->thread[h->i_thread_phase];
2934 x264_thread_sync_ratecontrol( h, thread_prev, h );
2935 x264_thread_sync_ratecontrol( thread_prev, thread_prev, h );
2936 h->i_frame = thread_prev->i_frame + 1 - h->i_thread_frames;
2940 /* Slices used and PSNR */
2941 for( int i = 0; i < 5; i++ )
2943 static const uint8_t slice_order[] = { SLICE_TYPE_I, SLICE_TYPE_SI, SLICE_TYPE_P, SLICE_TYPE_SP, SLICE_TYPE_B };
2944 static const char * const slice_name[] = { "P", "B", "I", "SP", "SI" };
2945 int i_slice = slice_order[i];
2947 if( h->stat.i_frame_count[i_slice] > 0 )
2949 const int i_count = h->stat.i_frame_count[i_slice];
2950 if( h->param.analyse.b_psnr )
2952 x264_log( h, X264_LOG_INFO,
2953 "frame %s:%-5d Avg QP:%5.2f size:%6.0f PSNR Mean Y:%5.2f U:%5.2f V:%5.2f Avg:%5.2f Global:%5.2f\n",
2954 slice_name[i_slice],
2956 h->stat.f_frame_qp[i_slice] / i_count,
2957 (double)h->stat.i_frame_size[i_slice] / i_count,
2958 h->stat.f_psnr_mean_y[i_slice] / i_count, h->stat.f_psnr_mean_u[i_slice] / i_count, h->stat.f_psnr_mean_v[i_slice] / i_count,
2959 h->stat.f_psnr_average[i_slice] / i_count,
2960 x264_psnr( h->stat.i_ssd_global[i_slice], i_count * i_yuv_size ) );
2964 x264_log( h, X264_LOG_INFO,
2965 "frame %s:%-5d Avg QP:%5.2f size:%6.0f\n",
2966 slice_name[i_slice],
2968 h->stat.f_frame_qp[i_slice] / i_count,
2969 (double)h->stat.i_frame_size[i_slice] / i_count );
2973 if( h->param.i_bframe && h->stat.i_frame_count[SLICE_TYPE_P] )
2977 // weight by number of frames (including the P-frame) that are in a sequence of N B-frames
2978 for( int i = 0; i <= h->param.i_bframe; i++ )
2979 den += (i+1) * h->stat.i_consecutive_bframes[i];
2980 for( int i = 0; i <= h->param.i_bframe; i++ )
2981 p += sprintf( p, " %4.1f%%", 100. * (i+1) * h->stat.i_consecutive_bframes[i] / den );
2982 x264_log( h, X264_LOG_INFO, "consecutive B-frames:%s\n", buf );
2985 for( int i_type = 0; i_type < 2; i_type++ )
2986 for( int i = 0; i < X264_PARTTYPE_MAX; i++ )
2988 if( i == D_DIRECT_8x8 ) continue; /* direct is counted as its own type */
2989 i_mb_count_size[i_type][x264_mb_partition_pixel_table[i]] += h->stat.i_mb_partition[i_type][i];
2993 if( h->stat.i_frame_count[SLICE_TYPE_I] > 0 )
2995 int64_t *i_mb_count = h->stat.i_mb_count[SLICE_TYPE_I];
2996 double i_count = h->stat.i_frame_count[SLICE_TYPE_I] * h->mb.i_mb_count / 100.0;
2997 x264_print_intra( i_mb_count, i_count, b_print_pcm, buf );
2998 x264_log( h, X264_LOG_INFO, "mb I %s\n", buf );
3000 if( h->stat.i_frame_count[SLICE_TYPE_P] > 0 )
3002 int64_t *i_mb_count = h->stat.i_mb_count[SLICE_TYPE_P];
3003 double i_count = h->stat.i_frame_count[SLICE_TYPE_P] * h->mb.i_mb_count / 100.0;
3004 int64_t *i_mb_size = i_mb_count_size[SLICE_TYPE_P];
3005 x264_print_intra( i_mb_count, i_count, b_print_pcm, buf );
3006 x264_log( h, X264_LOG_INFO,
3007 "mb P %s P16..4: %4.1f%% %4.1f%% %4.1f%% %4.1f%% %4.1f%% skip:%4.1f%%\n",
3009 i_mb_size[PIXEL_16x16] / (i_count*4),
3010 (i_mb_size[PIXEL_16x8] + i_mb_size[PIXEL_8x16]) / (i_count*4),
3011 i_mb_size[PIXEL_8x8] / (i_count*4),
3012 (i_mb_size[PIXEL_8x4] + i_mb_size[PIXEL_4x8]) / (i_count*4),
3013 i_mb_size[PIXEL_4x4] / (i_count*4),
3014 i_mb_count[P_SKIP] / i_count );
3016 if( h->stat.i_frame_count[SLICE_TYPE_B] > 0 )
3018 int64_t *i_mb_count = h->stat.i_mb_count[SLICE_TYPE_B];
3019 double i_count = h->stat.i_frame_count[SLICE_TYPE_B] * h->mb.i_mb_count / 100.0;
3020 double i_mb_list_count;
3021 int64_t *i_mb_size = i_mb_count_size[SLICE_TYPE_B];
3022 int64_t list_count[3] = {0}; /* 0 == L0, 1 == L1, 2 == BI */
3023 x264_print_intra( i_mb_count, i_count, b_print_pcm, buf );
3024 for( int i = 0; i < X264_PARTTYPE_MAX; i++ )
3025 for( int j = 0; j < 2; j++ )
3027 int l0 = x264_mb_type_list_table[i][0][j];
3028 int l1 = x264_mb_type_list_table[i][1][j];
3030 list_count[l1+l0*l1] += h->stat.i_mb_count[SLICE_TYPE_B][i] * 2;
3032 list_count[0] += h->stat.i_mb_partition[SLICE_TYPE_B][D_L0_8x8];
3033 list_count[1] += h->stat.i_mb_partition[SLICE_TYPE_B][D_L1_8x8];
3034 list_count[2] += h->stat.i_mb_partition[SLICE_TYPE_B][D_BI_8x8];
3035 i_mb_count[B_DIRECT] += (h->stat.i_mb_partition[SLICE_TYPE_B][D_DIRECT_8x8]+2)/4;
3036 i_mb_list_count = (list_count[0] + list_count[1] + list_count[2]) / 100.0;
3037 x264_log( h, X264_LOG_INFO,
3038 "mb B %s B16..8: %4.1f%% %4.1f%% %4.1f%% direct:%4.1f%% skip:%4.1f%% L0:%4.1f%% L1:%4.1f%% BI:%4.1f%%\n",
3040 i_mb_size[PIXEL_16x16] / (i_count*4),
3041 (i_mb_size[PIXEL_16x8] + i_mb_size[PIXEL_8x16]) / (i_count*4),
3042 i_mb_size[PIXEL_8x8] / (i_count*4),
3043 i_mb_count[B_DIRECT] / i_count,
3044 i_mb_count[B_SKIP] / i_count,
3045 list_count[0] / i_mb_list_count,
3046 list_count[1] / i_mb_list_count,
3047 list_count[2] / i_mb_list_count );
3050 x264_ratecontrol_summary( h );
3052 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 )
3054 #define SUM3(p) (p[SLICE_TYPE_I] + p[SLICE_TYPE_P] + p[SLICE_TYPE_B])
3055 #define SUM3b(p,o) (p[SLICE_TYPE_I][o] + p[SLICE_TYPE_P][o] + p[SLICE_TYPE_B][o])
3056 int64_t i_i8x8 = SUM3b( h->stat.i_mb_count, I_8x8 );
3057 int64_t i_intra = i_i8x8 + SUM3b( h->stat.i_mb_count, I_4x4 )
3058 + SUM3b( h->stat.i_mb_count, I_16x16 );
3059 int64_t i_all_intra = i_intra + SUM3b( h->stat.i_mb_count, I_PCM);
3060 const int i_count = h->stat.i_frame_count[SLICE_TYPE_I] +
3061 h->stat.i_frame_count[SLICE_TYPE_P] +
3062 h->stat.i_frame_count[SLICE_TYPE_B];
3063 int64_t i_mb_count = i_count * h->mb.i_mb_count;
3064 float fps = (float) h->param.i_fps_num / h->param.i_fps_den;
3066 /* duration algorithm fails with one frame */
3067 if( !h->param.b_vfr_input || i_count == 1 )
3068 f_bitrate = fps * SUM3(h->stat.i_frame_size) / i_count / 125;
3071 float duration = (float)(2 * h->frames.i_largest_pts - h->frames.i_second_largest_pts) * h->param.i_timebase_num / h->param.i_timebase_den;
3072 f_bitrate = SUM3(h->stat.i_frame_size) / duration / 125;
3075 if( h->pps->b_transform_8x8_mode )
3078 if( h->stat.i_mb_count_8x8dct[0] )
3079 sprintf( buf, " inter:%.1f%%", 100. * h->stat.i_mb_count_8x8dct[1] / h->stat.i_mb_count_8x8dct[0] );
3080 x264_log( h, X264_LOG_INFO, "8x8 transform intra:%.1f%%%s\n", 100. * i_i8x8 / i_intra, buf );
3083 if( (h->param.analyse.i_direct_mv_pred == X264_DIRECT_PRED_AUTO ||
3084 (h->stat.i_direct_frames[0] && h->stat.i_direct_frames[1]))
3085 && h->stat.i_frame_count[SLICE_TYPE_B] )
3087 x264_log( h, X264_LOG_INFO, "direct mvs spatial:%.1f%% temporal:%.1f%%\n",
3088 h->stat.i_direct_frames[1] * 100. / h->stat.i_frame_count[SLICE_TYPE_B],
3089 h->stat.i_direct_frames[0] * 100. / h->stat.i_frame_count[SLICE_TYPE_B] );
3093 if( i_mb_count != i_all_intra )
3094 sprintf( buf, " inter: %.1f%% %.1f%% %.1f%%",
3095 h->stat.i_mb_cbp[1] * 100.0 / ((i_mb_count - i_all_intra)*4),
3096 h->stat.i_mb_cbp[3] * 100.0 / ((i_mb_count - i_all_intra) ),
3097 h->stat.i_mb_cbp[5] * 100.0 / ((i_mb_count - i_all_intra)) );
3098 x264_log( h, X264_LOG_INFO, "coded y,uvDC,uvAC intra: %.1f%% %.1f%% %.1f%%%s\n",
3099 h->stat.i_mb_cbp[0] * 100.0 / (i_all_intra*4),
3100 h->stat.i_mb_cbp[2] * 100.0 / (i_all_intra ),
3101 h->stat.i_mb_cbp[4] * 100.0 / (i_all_intra ), buf );
3103 int64_t fixed_pred_modes[4][9] = {{0}};
3104 int64_t sum_pred_modes[4] = {0};
3105 for( int i = 0; i <= I_PRED_16x16_DC_128; i++ )
3107 fixed_pred_modes[0][x264_mb_pred_mode16x16_fix[i]] += h->stat.i_mb_pred_mode[0][i];
3108 sum_pred_modes[0] += h->stat.i_mb_pred_mode[0][i];
3110 if( sum_pred_modes[0] )
3111 x264_log( h, X264_LOG_INFO, "i16 v,h,dc,p: %2.0f%% %2.0f%% %2.0f%% %2.0f%%\n",
3112 fixed_pred_modes[0][0] * 100.0 / sum_pred_modes[0],
3113 fixed_pred_modes[0][1] * 100.0 / sum_pred_modes[0],
3114 fixed_pred_modes[0][2] * 100.0 / sum_pred_modes[0],
3115 fixed_pred_modes[0][3] * 100.0 / sum_pred_modes[0] );
3116 for( int i = 1; i <= 2; i++ )
3118 for( int j = 0; j <= I_PRED_8x8_DC_128; j++ )
3120 fixed_pred_modes[i][x264_mb_pred_mode4x4_fix(j)] += h->stat.i_mb_pred_mode[i][j];
3121 sum_pred_modes[i] += h->stat.i_mb_pred_mode[i][j];
3123 if( sum_pred_modes[i] )
3124 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,
3125 fixed_pred_modes[i][0] * 100.0 / sum_pred_modes[i],
3126 fixed_pred_modes[i][1] * 100.0 / sum_pred_modes[i],
3127 fixed_pred_modes[i][2] * 100.0 / sum_pred_modes[i],
3128 fixed_pred_modes[i][3] * 100.0 / sum_pred_modes[i],
3129 fixed_pred_modes[i][4] * 100.0 / sum_pred_modes[i],
3130 fixed_pred_modes[i][5] * 100.0 / sum_pred_modes[i],
3131 fixed_pred_modes[i][6] * 100.0 / sum_pred_modes[i],
3132 fixed_pred_modes[i][7] * 100.0 / sum_pred_modes[i],
3133 fixed_pred_modes[i][8] * 100.0 / sum_pred_modes[i] );
3135 for( int i = 0; i <= I_PRED_CHROMA_DC_128; i++ )
3137 fixed_pred_modes[3][x264_mb_pred_mode8x8c_fix[i]] += h->stat.i_mb_pred_mode[3][i];
3138 sum_pred_modes[3] += h->stat.i_mb_pred_mode[3][i];
3140 if( sum_pred_modes[3] )
3141 x264_log( h, X264_LOG_INFO, "i8c dc,h,v,p: %2.0f%% %2.0f%% %2.0f%% %2.0f%%\n",
3142 fixed_pred_modes[3][0] * 100.0 / sum_pred_modes[3],
3143 fixed_pred_modes[3][1] * 100.0 / sum_pred_modes[3],
3144 fixed_pred_modes[3][2] * 100.0 / sum_pred_modes[3],
3145 fixed_pred_modes[3][3] * 100.0 / sum_pred_modes[3] );
3147 if( h->param.analyse.i_weighted_pred == X264_WEIGHTP_SMART && h->stat.i_frame_count[SLICE_TYPE_P] > 0 )
3148 x264_log( h, X264_LOG_INFO, "Weighted P-Frames: Y:%.1f%%\n",
3149 h->stat.i_wpred[0] * 100.0 / h->stat.i_frame_count[SLICE_TYPE_P] );
3151 for( int i_list = 0; i_list < 2; i_list++ )
3152 for( int i_slice = 0; i_slice < 2; i_slice++ )
3157 for( int i = 0; i < 32; i++ )
3158 if( h->stat.i_mb_count_ref[i_slice][i_list][i] )
3160 i_den += h->stat.i_mb_count_ref[i_slice][i_list][i];
3165 for( int i = 0; i <= i_max; i++ )
3166 p += sprintf( p, " %4.1f%%", 100. * h->stat.i_mb_count_ref[i_slice][i_list][i] / i_den );
3167 x264_log( h, X264_LOG_INFO, "ref %c L%d:%s\n", "PB"[i_slice], i_list, buf );
3170 if( h->param.analyse.b_ssim )
3172 float ssim = SUM3( h->stat.f_ssim_mean_y ) / i_count;
3173 x264_log( h, X264_LOG_INFO, "SSIM Mean Y:%.7f (%6.3fdb)\n", ssim, x264_ssim( ssim ) );
3175 if( h->param.analyse.b_psnr )
3177 x264_log( h, X264_LOG_INFO,
3178 "PSNR Mean Y:%6.3f U:%6.3f V:%6.3f Avg:%6.3f Global:%6.3f kb/s:%.2f\n",
3179 SUM3( h->stat.f_psnr_mean_y ) / i_count,
3180 SUM3( h->stat.f_psnr_mean_u ) / i_count,
3181 SUM3( h->stat.f_psnr_mean_v ) / i_count,
3182 SUM3( h->stat.f_psnr_average ) / i_count,
3183 x264_psnr( SUM3( h->stat.i_ssd_global ), i_count * i_yuv_size ),
3187 x264_log( h, X264_LOG_INFO, "kb/s:%.2f\n", f_bitrate );
3191 x264_ratecontrol_delete( h );
3194 if( h->param.rc.psz_stat_out )
3195 free( h->param.rc.psz_stat_out );
3196 if( h->param.rc.psz_stat_in )
3197 free( h->param.rc.psz_stat_in );
3199 x264_cqm_delete( h );
3200 x264_free( h->nal_buffer );
3201 x264_analyse_free_costs( h );
3203 if( h->i_thread_frames > 1)
3204 h = h->thread[h->i_thread_phase];
3207 x264_frame_delete_list( h->frames.unused[0] );
3208 x264_frame_delete_list( h->frames.unused[1] );
3209 x264_frame_delete_list( h->frames.current );
3210 x264_frame_delete_list( h->frames.blank_unused );
3214 for( int i = h->param.i_threads - 1; i >= 0; i-- )
3216 x264_frame_t **frame;
3218 if( !h->param.b_sliced_threads || i == 0 )
3220 for( frame = h->thread[i]->frames.reference; *frame; frame++ )
3222 assert( (*frame)->i_reference_count > 0 );
3223 (*frame)->i_reference_count--;
3224 if( (*frame)->i_reference_count == 0 )
3225 x264_frame_delete( *frame );
3227 frame = &h->thread[i]->fdec;
3228 assert( (*frame)->i_reference_count > 0 );
3229 (*frame)->i_reference_count--;
3230 if( (*frame)->i_reference_count == 0 )
3231 x264_frame_delete( *frame );
3232 x264_macroblock_cache_free( h->thread[i] );
3234 x264_macroblock_thread_free( h->thread[i], 0 );
3235 x264_free( h->thread[i]->out.p_bitstream );
3236 x264_free( h->thread[i]->out.nal);
3237 x264_free( h->thread[i] );
3241 /****************************************************************************
3242 * x264_encoder_delayed_frames:
3243 ****************************************************************************/
3244 int x264_encoder_delayed_frames( x264_t *h )
3246 int delayed_frames = 0;
3247 if( h->i_thread_frames > 1 )
3249 for( int i = 0; i < h->i_thread_frames; i++ )
3250 delayed_frames += h->thread[i]->b_thread_active;
3251 h = h->thread[h->i_thread_phase];
3253 for( int i = 0; h->frames.current[i]; i++ )
3255 x264_pthread_mutex_lock( &h->lookahead->ofbuf.mutex );
3256 x264_pthread_mutex_lock( &h->lookahead->ifbuf.mutex );
3257 x264_pthread_mutex_lock( &h->lookahead->next.mutex );
3258 delayed_frames += h->lookahead->ifbuf.i_size + h->lookahead->next.i_size + h->lookahead->ofbuf.i_size;
3259 x264_pthread_mutex_unlock( &h->lookahead->next.mutex );
3260 x264_pthread_mutex_unlock( &h->lookahead->ifbuf.mutex );
3261 x264_pthread_mutex_unlock( &h->lookahead->ofbuf.mutex );
3262 return delayed_frames;