1 /*****************************************************************************
2 * set: h264 encoder (SPS and PPS init and write)
3 *****************************************************************************
4 * Copyright (C) 2003-2008 x264 project
6 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
7 * Loren Merritt <lorenm@u.washington.edu>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
22 *****************************************************************************/
26 #include "common/common.h"
29 #define bs_write_ue bs_write_ue_big
31 // Indexed by pic_struct values
32 static const uint8_t num_clock_ts[10] = { 0, 1, 1, 1, 2, 2, 3, 3, 2, 3 };
34 static void transpose( uint8_t *buf, int w )
36 for( int i = 0; i < w; i++ )
37 for( int j = 0; j < i; j++ )
38 XCHG( uint8_t, buf[w*i+j], buf[w*j+i] );
41 static void scaling_list_write( bs_t *s, x264_pps_t *pps, int idx )
43 const int len = idx<4 ? 16 : 64;
44 const uint8_t *zigzag = idx<4 ? x264_zigzag_scan4[0] : x264_zigzag_scan8[0];
45 const uint8_t *list = pps->scaling_list[idx];
46 const uint8_t *def_list = (idx==CQM_4IC) ? pps->scaling_list[CQM_4IY]
47 : (idx==CQM_4PC) ? pps->scaling_list[CQM_4PY]
49 if( !memcmp( list, def_list, len ) )
50 bs_write( s, 1, 0 ); // scaling_list_present_flag
51 else if( !memcmp( list, x264_cqm_jvt[idx], len ) )
53 bs_write( s, 1, 1 ); // scaling_list_present_flag
54 bs_write_se( s, -8 ); // use jvt list
59 bs_write( s, 1, 1 ); // scaling_list_present_flag
61 // try run-length compression of trailing values
62 for( run = len; run > 1; run-- )
63 if( list[zigzag[run-1]] != list[zigzag[run-2]] )
65 if( run < len && len - run < bs_size_se( (int8_t)-list[zigzag[run]] ) )
68 for( int j = 0; j < run; j++ )
69 bs_write_se( s, (int8_t)(list[zigzag[j]] - (j>0 ? list[zigzag[j-1]] : 8)) ); // delta
72 bs_write_se( s, (int8_t)-list[zigzag[run]] );
76 static uint8_t *x264_sei_write_header( bs_t *s, int payload_type )
78 bs_write( s, 8, payload_type );
81 uint8_t *p_start = s->p;
88 static void x264_sei_write( bs_t *s, uint8_t *p_start )
93 p_start[0] = s->p - p_start - 1; // -1 for the length byte
96 bs_rbsp_trailing( s );
99 void x264_sps_init( x264_sps_t *sps, int i_id, x264_param_t *param )
104 sps->b_qpprime_y_zero_transform_bypass = param->rc.i_rc_method == X264_RC_CQP && param->rc.i_qp_constant == 0;
105 if( sps->b_qpprime_y_zero_transform_bypass )
106 sps->i_profile_idc = PROFILE_HIGH444_PREDICTIVE;
107 else if( param->analyse.b_transform_8x8 || param->i_cqm_preset != X264_CQM_FLAT )
108 sps->i_profile_idc = PROFILE_HIGH;
109 else if( param->b_cabac || param->i_bframe > 0 || param->b_interlaced || param->b_fake_interlaced || param->analyse.i_weighted_pred > 0 )
110 sps->i_profile_idc = PROFILE_MAIN;
112 sps->i_profile_idc = PROFILE_BASELINE;
113 sps->i_level_idc = param->i_level_idc;
115 sps->b_constraint_set0 = sps->i_profile_idc == PROFILE_BASELINE;
116 /* x264 doesn't support the features that are in Baseline and not in Main,
117 * namely arbitrary_slice_order and slice_groups. */
118 sps->b_constraint_set1 = sps->i_profile_idc <= PROFILE_MAIN;
119 /* Never set constraint_set2, it is not necessary and not used in real world. */
120 sps->b_constraint_set2 = 0;
122 sps->vui.i_num_reorder_frames = param->i_bframe_pyramid ? 2 : param->i_bframe ? 1 : 0;
123 /* extra slot with pyramid so that we don't have to override the
124 * order of forgetting old pictures */
125 sps->vui.i_max_dec_frame_buffering =
126 sps->i_num_ref_frames = X264_MIN(16, X264_MAX4(param->i_frame_reference, 1 + sps->vui.i_num_reorder_frames,
127 param->i_bframe_pyramid ? 4 : 1, param->i_dpb_size));
128 sps->i_num_ref_frames -= param->i_bframe_pyramid == X264_B_PYRAMID_STRICT;
130 /* number of refs + current frame */
131 max_frame_num = sps->vui.i_max_dec_frame_buffering * (!!param->i_bframe_pyramid+1) + 1;
132 sps->i_log2_max_frame_num = 4;
133 while( (1 << sps->i_log2_max_frame_num) <= max_frame_num )
134 sps->i_log2_max_frame_num++;
137 if( sps->i_poc_type == 0 )
139 int max_delta_poc = (param->i_bframe + 2) * (!!param->i_bframe_pyramid + 1) * 2;
140 sps->i_log2_max_poc_lsb = 4;
141 while( (1 << sps->i_log2_max_poc_lsb) <= max_delta_poc * 2 )
142 sps->i_log2_max_poc_lsb++;
144 else if( sps->i_poc_type == 1 )
149 sps->b_delta_pic_order_always_zero = 1;
150 sps->i_offset_for_non_ref_pic = 0;
151 sps->i_offset_for_top_to_bottom_field = 0;
152 sps->i_num_ref_frames_in_poc_cycle = 0;
154 for( i = 0; i < sps->i_num_ref_frames_in_poc_cycle; i++ )
156 sps->i_offset_for_ref_frame[i] = 0;
162 sps->b_gaps_in_frame_num_value_allowed = 0;
163 sps->i_mb_width = ( param->i_width + 15 ) / 16;
164 sps->i_mb_height= ( param->i_height + 15 ) / 16;
165 sps->b_frame_mbs_only = !(param->b_interlaced || param->b_fake_interlaced);
166 if( !sps->b_frame_mbs_only )
167 sps->i_mb_height = ( sps->i_mb_height + 1 ) & ~1;
168 sps->b_mb_adaptive_frame_field = param->b_interlaced;
169 sps->b_direct8x8_inference = 1;
171 sps->crop.i_left = 0;
173 sps->crop.i_right = sps->i_mb_width*16 - param->i_width;
174 sps->crop.i_bottom = (sps->i_mb_height*16 - param->i_height) >> !sps->b_frame_mbs_only;
175 sps->b_crop = sps->crop.i_left || sps->crop.i_top ||
176 sps->crop.i_right || sps->crop.i_bottom;
178 sps->vui.b_aspect_ratio_info_present = 0;
179 if( param->vui.i_sar_width > 0 && param->vui.i_sar_height > 0 )
181 sps->vui.b_aspect_ratio_info_present = 1;
182 sps->vui.i_sar_width = param->vui.i_sar_width;
183 sps->vui.i_sar_height= param->vui.i_sar_height;
186 sps->vui.b_overscan_info_present = ( param->vui.i_overscan ? 1 : 0 );
187 if( sps->vui.b_overscan_info_present )
188 sps->vui.b_overscan_info = ( param->vui.i_overscan == 2 ? 1 : 0 );
190 sps->vui.b_signal_type_present = 0;
191 sps->vui.i_vidformat = ( param->vui.i_vidformat <= 5 ? param->vui.i_vidformat : 5 );
192 sps->vui.b_fullrange = ( param->vui.b_fullrange ? 1 : 0 );
193 sps->vui.b_color_description_present = 0;
195 sps->vui.i_colorprim = ( param->vui.i_colorprim <= 9 ? param->vui.i_colorprim : 2 );
196 sps->vui.i_transfer = ( param->vui.i_transfer <= 11 ? param->vui.i_transfer : 2 );
197 sps->vui.i_colmatrix = ( param->vui.i_colmatrix <= 9 ? param->vui.i_colmatrix : 2 );
198 if( sps->vui.i_colorprim != 2 ||
199 sps->vui.i_transfer != 2 ||
200 sps->vui.i_colmatrix != 2 )
202 sps->vui.b_color_description_present = 1;
205 if( sps->vui.i_vidformat != 5 ||
206 sps->vui.b_fullrange ||
207 sps->vui.b_color_description_present )
209 sps->vui.b_signal_type_present = 1;
212 /* FIXME: not sufficient for interlaced video */
213 sps->vui.b_chroma_loc_info_present = ( param->vui.i_chroma_loc ? 1 : 0 );
214 if( sps->vui.b_chroma_loc_info_present )
216 sps->vui.i_chroma_loc_top = param->vui.i_chroma_loc;
217 sps->vui.i_chroma_loc_bottom = param->vui.i_chroma_loc;
220 sps->vui.b_timing_info_present = param->i_timebase_num > 0 && param->i_timebase_den > 0;
222 if( sps->vui.b_timing_info_present )
224 sps->vui.i_num_units_in_tick = param->i_timebase_num;
225 sps->vui.i_time_scale = param->i_timebase_den * 2;
226 sps->vui.b_fixed_frame_rate = !param->b_vfr_input;
229 sps->vui.b_vcl_hrd_parameters_present = 0; // we don't support VCL HRD
230 sps->vui.b_nal_hrd_parameters_present = !!param->i_nal_hrd;
231 sps->vui.b_pic_struct_present = param->b_pic_struct;
233 // NOTE: HRD related parts of the SPS are initialised in x264_ratecontrol_init_reconfigurable
235 sps->vui.b_bitstream_restriction = 1;
236 if( sps->vui.b_bitstream_restriction )
238 sps->vui.b_motion_vectors_over_pic_boundaries = 1;
239 sps->vui.i_max_bytes_per_pic_denom = 0;
240 sps->vui.i_max_bits_per_mb_denom = 0;
241 sps->vui.i_log2_max_mv_length_horizontal =
242 sps->vui.i_log2_max_mv_length_vertical = (int)log2f( X264_MAX( 1, param->analyse.i_mv_range*4-1 ) ) + 1;
246 void x264_sps_write( bs_t *s, x264_sps_t *sps )
249 bs_write( s, 8, sps->i_profile_idc );
250 bs_write( s, 1, sps->b_constraint_set0 );
251 bs_write( s, 1, sps->b_constraint_set1 );
252 bs_write( s, 1, sps->b_constraint_set2 );
254 bs_write( s, 5, 0 ); /* reserved */
256 bs_write( s, 8, sps->i_level_idc );
258 bs_write_ue( s, sps->i_id );
260 if( sps->i_profile_idc >= PROFILE_HIGH )
262 bs_write_ue( s, 1 ); // chroma_format_idc = 4:2:0
263 bs_write_ue( s, 0 ); // bit_depth_luma_minus8
264 bs_write_ue( s, 0 ); // bit_depth_chroma_minus8
265 bs_write( s, 1, sps->b_qpprime_y_zero_transform_bypass );
266 bs_write( s, 1, 0 ); // seq_scaling_matrix_present_flag
269 bs_write_ue( s, sps->i_log2_max_frame_num - 4 );
270 bs_write_ue( s, sps->i_poc_type );
271 if( sps->i_poc_type == 0 )
273 bs_write_ue( s, sps->i_log2_max_poc_lsb - 4 );
275 else if( sps->i_poc_type == 1 )
279 bs_write( s, 1, sps->b_delta_pic_order_always_zero );
280 bs_write_se( s, sps->i_offset_for_non_ref_pic );
281 bs_write_se( s, sps->i_offset_for_top_to_bottom_field );
282 bs_write_ue( s, sps->i_num_ref_frames_in_poc_cycle );
284 for( i = 0; i < sps->i_num_ref_frames_in_poc_cycle; i++ )
286 bs_write_se( s, sps->i_offset_for_ref_frame[i] );
289 bs_write_ue( s, sps->i_num_ref_frames );
290 bs_write( s, 1, sps->b_gaps_in_frame_num_value_allowed );
291 bs_write_ue( s, sps->i_mb_width - 1 );
292 if (sps->b_frame_mbs_only)
294 bs_write_ue( s, sps->i_mb_height - 1);
298 bs_write_ue( s, sps->i_mb_height/2 - 1);
300 bs_write( s, 1, sps->b_frame_mbs_only );
301 if( !sps->b_frame_mbs_only )
303 bs_write( s, 1, sps->b_mb_adaptive_frame_field );
305 bs_write( s, 1, sps->b_direct8x8_inference );
307 bs_write( s, 1, sps->b_crop );
310 bs_write_ue( s, sps->crop.i_left / 2 );
311 bs_write_ue( s, sps->crop.i_right / 2 );
312 bs_write_ue( s, sps->crop.i_top / 2 );
313 bs_write_ue( s, sps->crop.i_bottom / 2 );
316 bs_write( s, 1, sps->b_vui );
319 bs_write1( s, sps->vui.b_aspect_ratio_info_present );
320 if( sps->vui.b_aspect_ratio_info_present )
323 static const struct { uint8_t w, h, sar; } sar[] =
325 { 1, 1, 1 }, { 12, 11, 2 }, { 10, 11, 3 }, { 16, 11, 4 },
326 { 40, 33, 5 }, { 24, 11, 6 }, { 20, 11, 7 }, { 32, 11, 8 },
327 { 80, 33, 9 }, { 18, 11, 10}, { 15, 11, 11}, { 64, 33, 12},
328 { 160,99, 13}, { 0, 0, 255 }
330 for( i = 0; sar[i].sar != 255; i++ )
332 if( sar[i].w == sps->vui.i_sar_width &&
333 sar[i].h == sps->vui.i_sar_height )
336 bs_write( s, 8, sar[i].sar );
337 if( sar[i].sar == 255 ) /* aspect_ratio_idc (extended) */
339 bs_write( s, 16, sps->vui.i_sar_width );
340 bs_write( s, 16, sps->vui.i_sar_height );
344 bs_write1( s, sps->vui.b_overscan_info_present );
345 if( sps->vui.b_overscan_info_present )
346 bs_write1( s, sps->vui.b_overscan_info );
348 bs_write1( s, sps->vui.b_signal_type_present );
349 if( sps->vui.b_signal_type_present )
351 bs_write( s, 3, sps->vui.i_vidformat );
352 bs_write1( s, sps->vui.b_fullrange );
353 bs_write1( s, sps->vui.b_color_description_present );
354 if( sps->vui.b_color_description_present )
356 bs_write( s, 8, sps->vui.i_colorprim );
357 bs_write( s, 8, sps->vui.i_transfer );
358 bs_write( s, 8, sps->vui.i_colmatrix );
362 bs_write1( s, sps->vui.b_chroma_loc_info_present );
363 if( sps->vui.b_chroma_loc_info_present )
365 bs_write_ue( s, sps->vui.i_chroma_loc_top );
366 bs_write_ue( s, sps->vui.i_chroma_loc_bottom );
369 bs_write1( s, sps->vui.b_timing_info_present );
370 if( sps->vui.b_timing_info_present )
372 bs_write32( s, sps->vui.i_num_units_in_tick );
373 bs_write32( s, sps->vui.i_time_scale );
374 bs_write1( s, sps->vui.b_fixed_frame_rate );
377 bs_write1( s, sps->vui.b_nal_hrd_parameters_present );
378 if( sps->vui.b_nal_hrd_parameters_present )
380 bs_write_ue( s, sps->vui.hrd.i_cpb_cnt - 1 );
381 bs_write( s, 4, sps->vui.hrd.i_bit_rate_scale );
382 bs_write( s, 4, sps->vui.hrd.i_cpb_size_scale );
384 bs_write_ue( s, sps->vui.hrd.i_bit_rate_value - 1 );
385 bs_write_ue( s, sps->vui.hrd.i_cpb_size_value - 1 );
387 bs_write1( s, sps->vui.hrd.b_cbr_hrd );
389 bs_write( s, 5, sps->vui.hrd.i_initial_cpb_removal_delay_length - 1 );
390 bs_write( s, 5, sps->vui.hrd.i_cpb_removal_delay_length - 1 );
391 bs_write( s, 5, sps->vui.hrd.i_dpb_output_delay_length - 1 );
392 bs_write( s, 5, sps->vui.hrd.i_time_offset_length );
395 bs_write1( s, sps->vui.b_vcl_hrd_parameters_present );
397 if( sps->vui.b_nal_hrd_parameters_present || sps->vui.b_vcl_hrd_parameters_present )
398 bs_write1( s, 0 ); /* low_delay_hrd_flag */
400 bs_write1( s, sps->vui.b_pic_struct_present );
401 bs_write1( s, sps->vui.b_bitstream_restriction );
402 if( sps->vui.b_bitstream_restriction )
404 bs_write1( s, sps->vui.b_motion_vectors_over_pic_boundaries );
405 bs_write_ue( s, sps->vui.i_max_bytes_per_pic_denom );
406 bs_write_ue( s, sps->vui.i_max_bits_per_mb_denom );
407 bs_write_ue( s, sps->vui.i_log2_max_mv_length_horizontal );
408 bs_write_ue( s, sps->vui.i_log2_max_mv_length_vertical );
409 bs_write_ue( s, sps->vui.i_num_reorder_frames );
410 bs_write_ue( s, sps->vui.i_max_dec_frame_buffering );
414 bs_rbsp_trailing( s );
418 void x264_pps_init( x264_pps_t *pps, int i_id, x264_param_t *param, x264_sps_t *sps )
421 pps->i_sps_id = sps->i_id;
422 pps->b_cabac = param->b_cabac;
424 pps->b_pic_order = param->b_interlaced;
425 pps->i_num_slice_groups = 1;
427 pps->i_num_ref_idx_l0_default_active = param->i_frame_reference;
428 pps->i_num_ref_idx_l1_default_active = 1;
430 pps->b_weighted_pred = param->analyse.i_weighted_pred > 0;
431 pps->b_weighted_bipred = param->analyse.b_weighted_bipred ? 2 : 0;
433 pps->i_pic_init_qp = param->rc.i_rc_method == X264_RC_ABR ? 26 : param->rc.i_qp_constant;
434 pps->i_pic_init_qs = 26;
436 pps->i_chroma_qp_index_offset = param->analyse.i_chroma_qp_offset;
437 pps->b_deblocking_filter_control = 1;
438 pps->b_constrained_intra_pred = param->b_constrained_intra;
439 pps->b_redundant_pic_cnt = 0;
441 pps->b_transform_8x8_mode = param->analyse.b_transform_8x8 ? 1 : 0;
443 pps->i_cqm_preset = param->i_cqm_preset;
444 switch( pps->i_cqm_preset )
447 for( int i = 0; i < 6; i++ )
448 pps->scaling_list[i] = x264_cqm_flat16;
451 for( int i = 0; i < 6; i++ )
452 pps->scaling_list[i] = x264_cqm_jvt[i];
454 case X264_CQM_CUSTOM:
455 /* match the transposed DCT & zigzag */
456 transpose( param->cqm_4iy, 4 );
457 transpose( param->cqm_4ic, 4 );
458 transpose( param->cqm_4py, 4 );
459 transpose( param->cqm_4pc, 4 );
460 transpose( param->cqm_8iy, 8 );
461 transpose( param->cqm_8py, 8 );
462 pps->scaling_list[CQM_4IY] = param->cqm_4iy;
463 pps->scaling_list[CQM_4IC] = param->cqm_4ic;
464 pps->scaling_list[CQM_4PY] = param->cqm_4py;
465 pps->scaling_list[CQM_4PC] = param->cqm_4pc;
466 pps->scaling_list[CQM_8IY+4] = param->cqm_8iy;
467 pps->scaling_list[CQM_8PY+4] = param->cqm_8py;
468 for( int i = 0; i < 6; i++ )
469 for( int j = 0; j < (i < 4 ? 16 : 64); j++ )
470 if( pps->scaling_list[i][j] == 0 )
471 pps->scaling_list[i] = x264_cqm_jvt[i];
476 void x264_pps_write( bs_t *s, x264_pps_t *pps )
479 bs_write_ue( s, pps->i_id );
480 bs_write_ue( s, pps->i_sps_id );
482 bs_write( s, 1, pps->b_cabac );
483 bs_write( s, 1, pps->b_pic_order );
484 bs_write_ue( s, pps->i_num_slice_groups - 1 );
486 bs_write_ue( s, pps->i_num_ref_idx_l0_default_active - 1 );
487 bs_write_ue( s, pps->i_num_ref_idx_l1_default_active - 1 );
488 bs_write( s, 1, pps->b_weighted_pred );
489 bs_write( s, 2, pps->b_weighted_bipred );
491 bs_write_se( s, pps->i_pic_init_qp - 26 );
492 bs_write_se( s, pps->i_pic_init_qs - 26 );
493 bs_write_se( s, pps->i_chroma_qp_index_offset );
495 bs_write( s, 1, pps->b_deblocking_filter_control );
496 bs_write( s, 1, pps->b_constrained_intra_pred );
497 bs_write( s, 1, pps->b_redundant_pic_cnt );
499 if( pps->b_transform_8x8_mode || pps->i_cqm_preset != X264_CQM_FLAT )
501 bs_write( s, 1, pps->b_transform_8x8_mode );
502 bs_write( s, 1, (pps->i_cqm_preset != X264_CQM_FLAT) );
503 if( pps->i_cqm_preset != X264_CQM_FLAT )
505 scaling_list_write( s, pps, CQM_4IY );
506 scaling_list_write( s, pps, CQM_4IC );
507 bs_write( s, 1, 0 ); // Cr = Cb
508 scaling_list_write( s, pps, CQM_4PY );
509 scaling_list_write( s, pps, CQM_4PC );
510 bs_write( s, 1, 0 ); // Cr = Cb
511 if( pps->b_transform_8x8_mode )
513 scaling_list_write( s, pps, CQM_8IY+4 );
514 scaling_list_write( s, pps, CQM_8PY+4 );
517 bs_write_se( s, pps->i_chroma_qp_index_offset );
520 bs_rbsp_trailing( s );
524 void x264_sei_recovery_point_write( x264_t *h, bs_t *s, int recovery_frame_cnt )
527 uint8_t *p_start = x264_sei_write_header( s, SEI_RECOVERY_POINT );
529 bs_write_ue( s, recovery_frame_cnt ); // recovery_frame_cnt
530 bs_write( s, 1, 1 ); //exact_match_flag 1
531 bs_write( s, 1, 0 ); //broken_link_flag 0
532 bs_write( s, 2, 0 ); //changing_slice_group 0
534 x264_sei_write( s, p_start );
538 int x264_sei_version_write( x264_t *h, bs_t *s )
541 // random ID number generated according to ISO-11578
542 static const uint8_t uuid[16] =
544 0xdc, 0x45, 0xe9, 0xbd, 0xe6, 0xd9, 0x48, 0xb7,
545 0x96, 0x2c, 0xd8, 0x20, 0xd9, 0x23, 0xee, 0xef
547 char *opts = x264_param2string( &h->param, 0 );
553 CHECKED_MALLOC( version, 200 + strlen( opts ) );
555 sprintf( version, "x264 - core %d%s - H.264/MPEG-4 AVC codec - "
556 "Copyleft 2003-2010 - http://www.videolan.org/x264.html - options: %s",
557 X264_BUILD, X264_VERSION, opts );
558 length = strlen(version)+1+16;
561 bs_write( s, 8, SEI_USER_DATA_UNREGISTERED );
563 for( i = 0; i <= length-255; i += 255 )
564 bs_write( s, 8, 255 );
565 bs_write( s, 8, length-i );
567 for( int j = 0; j < 16; j++ )
568 bs_write( s, 8, uuid[j] );
569 for( int j = 0; j < length-16; j++ )
570 bs_write( s, 8, version[j] );
572 bs_rbsp_trailing( s );
576 x264_free( version );
583 void x264_sei_buffering_period_write( x264_t *h, bs_t *s )
585 x264_sps_t *sps = h->sps;
587 uint8_t *p_start = x264_sei_write_header( s, SEI_BUFFERING_PERIOD );
589 bs_write_ue( s, sps->i_id );
591 if( sps->vui.b_nal_hrd_parameters_present )
593 bs_write( s, sps->vui.hrd.i_initial_cpb_removal_delay_length, h->initial_cpb_removal_delay );
594 bs_write( s, sps->vui.hrd.i_initial_cpb_removal_delay_length, h->initial_cpb_removal_delay_offset );
597 x264_sei_write( s, p_start );
601 void x264_sei_pic_timing_write( x264_t *h, bs_t *s )
603 x264_sps_t *sps = h->sps;
605 uint8_t *p_start = x264_sei_write_header( s, SEI_PIC_TIMING );
607 if( sps->vui.b_nal_hrd_parameters_present || sps->vui.b_vcl_hrd_parameters_present )
609 bs_write( s, sps->vui.hrd.i_cpb_removal_delay_length, h->fenc->i_cpb_delay );
610 bs_write( s, sps->vui.hrd.i_dpb_output_delay_length, h->fenc->i_dpb_output_delay );
613 if( sps->vui.b_pic_struct_present )
615 bs_write( s, 4, h->fenc->i_pic_struct-1 ); // We use index 0 for "Auto"
617 // These clock timestamps are not standardised so we don't set them
618 // They could be time of origin, capture or alternative ideal display
619 for( int i = 0; i < num_clock_ts[h->fenc->i_pic_struct]; i++ )
620 bs_write1( s, 0 ); // clock_timestamp_flag
623 x264_sei_write( s, p_start );
627 void x264_filler_write( x264_t *h, bs_t *s, int filler )
631 for( int i = 0; i < filler; i++ )
632 bs_write( s, 8, 0xff );
634 bs_rbsp_trailing( s );
638 const x264_level_t x264_levels[] =
640 { 10, 1485, 99, 152064, 64, 175, 64, 64, 0, 2, 0, 0, 1 },
641 // {"1b", 1485, 99, 152064, 128, 350, 64, 64, 0, 2, 0, 0, 1 },
642 { 11, 3000, 396, 345600, 192, 500, 128, 64, 0, 2, 0, 0, 1 },
643 { 12, 6000, 396, 912384, 384, 1000, 128, 64, 0, 2, 0, 0, 1 },
644 { 13, 11880, 396, 912384, 768, 2000, 128, 64, 0, 2, 0, 0, 1 },
645 { 20, 11880, 396, 912384, 2000, 2000, 128, 64, 0, 2, 0, 0, 1 },
646 { 21, 19800, 792, 1824768, 4000, 4000, 256, 64, 0, 2, 0, 0, 0 },
647 { 22, 20250, 1620, 3110400, 4000, 4000, 256, 64, 0, 2, 0, 0, 0 },
648 { 30, 40500, 1620, 3110400, 10000, 10000, 256, 32, 22, 2, 0, 1, 0 },
649 { 31, 108000, 3600, 6912000, 14000, 14000, 512, 16, 60, 4, 1, 1, 0 },
650 { 32, 216000, 5120, 7864320, 20000, 20000, 512, 16, 60, 4, 1, 1, 0 },
651 { 40, 245760, 8192, 12582912, 20000, 25000, 512, 16, 60, 4, 1, 1, 0 },
652 { 41, 245760, 8192, 12582912, 50000, 62500, 512, 16, 24, 2, 1, 1, 0 },
653 { 42, 522240, 8704, 13369344, 50000, 62500, 512, 16, 24, 2, 1, 1, 1 },
654 { 50, 589824, 22080, 42393600, 135000, 135000, 512, 16, 24, 2, 1, 1, 1 },
655 { 51, 983040, 36864, 70778880, 240000, 240000, 512, 16, 24, 2, 1, 1, 1 },
662 x264_log( h, X264_LOG_WARNING, __VA_ARGS__ );\
666 int x264_validate_levels( x264_t *h, int verbose )
669 int mbs = h->sps->i_mb_width * h->sps->i_mb_height;
670 int dpb = mbs * 384 * h->sps->vui.i_max_dec_frame_buffering;
671 int cbp_factor = h->sps->i_profile_idc==PROFILE_HIGH ? 5 : 4;
673 const x264_level_t *l = x264_levels;
674 while( l->level_idc != 0 && l->level_idc != h->param.i_level_idc )
677 if( l->frame_size < mbs
678 || l->frame_size*8 < h->sps->i_mb_width * h->sps->i_mb_width
679 || l->frame_size*8 < h->sps->i_mb_height * h->sps->i_mb_height )
680 ERROR( "frame MB size (%dx%d) > level limit (%d)\n",
681 h->sps->i_mb_width, h->sps->i_mb_height, l->frame_size );
683 ERROR( "DPB size (%d frames, %d bytes) > level limit (%d frames, %d bytes)\n",
684 h->sps->vui.i_max_dec_frame_buffering, dpb, (int)(l->dpb / (384*mbs)), l->dpb );
686 #define CHECK( name, limit, val ) \
687 if( (val) > (limit) ) \
688 ERROR( name " (%d) > level limit (%d)\n", (int)(val), (limit) );
690 CHECK( "VBV bitrate", (l->bitrate * cbp_factor) / 4, h->param.rc.i_vbv_max_bitrate );
691 CHECK( "VBV buffer", (l->cpb * cbp_factor) / 4, h->param.rc.i_vbv_buffer_size );
692 CHECK( "MV range", l->mv_range, h->param.analyse.i_mv_range );
693 CHECK( "interlaced", !l->frame_only, h->param.b_interlaced );
694 CHECK( "fake interlaced", !l->frame_only, h->param.b_fake_interlaced );
696 if( h->param.i_fps_den > 0 )
697 CHECK( "MB rate", l->mbps, (int64_t)mbs * h->param.i_fps_num / h->param.i_fps_den );
699 /* TODO check the rest of the limits */