1 /*****************************************************************************
3 *****************************************************************************
4 * Copyright (C) 2003-2010 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.
23 * This program is also available under a commercial proprietary license.
24 * For more information, contact us at licensing@x264.com.
25 *****************************************************************************/
29 #include "common/common.h"
32 #define bs_write_ue bs_write_ue_big
34 // Indexed by pic_struct values
35 static const uint8_t num_clock_ts[10] = { 0, 1, 1, 1, 2, 2, 3, 3, 2, 3 };
37 static void transpose( uint8_t *buf, int w )
39 for( int i = 0; i < w; i++ )
40 for( int j = 0; j < i; j++ )
41 XCHG( uint8_t, buf[w*i+j], buf[w*j+i] );
44 static void scaling_list_write( bs_t *s, x264_pps_t *pps, int idx )
46 const int len = idx<4 ? 16 : 64;
47 const uint8_t *zigzag = idx<4 ? x264_zigzag_scan4[0] : x264_zigzag_scan8[0];
48 const uint8_t *list = pps->scaling_list[idx];
49 const uint8_t *def_list = (idx==CQM_4IC) ? pps->scaling_list[CQM_4IY]
50 : (idx==CQM_4PC) ? pps->scaling_list[CQM_4PY]
52 if( !memcmp( list, def_list, len ) )
53 bs_write( s, 1, 0 ); // scaling_list_present_flag
54 else if( !memcmp( list, x264_cqm_jvt[idx], len ) )
56 bs_write( s, 1, 1 ); // scaling_list_present_flag
57 bs_write_se( s, -8 ); // use jvt list
62 bs_write( s, 1, 1 ); // scaling_list_present_flag
64 // try run-length compression of trailing values
65 for( run = len; run > 1; run-- )
66 if( list[zigzag[run-1]] != list[zigzag[run-2]] )
68 if( run < len && len - run < bs_size_se( (int8_t)-list[zigzag[run]] ) )
71 for( int j = 0; j < run; j++ )
72 bs_write_se( s, (int8_t)(list[zigzag[j]] - (j>0 ? list[zigzag[j-1]] : 8)) ); // delta
75 bs_write_se( s, (int8_t)-list[zigzag[run]] );
79 void x264_sei_write( bs_t *s, uint8_t *payload, int payload_size, int payload_type )
85 for( i = 0; i <= payload_type-255; i += 255 )
86 bs_write( s, 8, 255 );
87 bs_write( s, 8, payload_type-i );
89 for( i = 0; i <= payload_size-255; i += 255 )
90 bs_write( s, 8, 255 );
91 bs_write( s, 8, payload_size-i );
93 for( i = 0; i < payload_size; i++ )
94 bs_write(s, 8, payload[i] );
96 bs_rbsp_trailing( s );
100 void x264_sps_init( x264_sps_t *sps, int i_id, x264_param_t *param )
103 sps->i_mb_width = ( param->i_width + 15 ) / 16;
104 sps->i_mb_height= ( param->i_height + 15 ) / 16;
106 sps->b_qpprime_y_zero_transform_bypass = param->rc.i_rc_method == X264_RC_CQP && param->rc.i_qp_constant == 0;
107 if( sps->b_qpprime_y_zero_transform_bypass )
108 sps->i_profile_idc = PROFILE_HIGH444_PREDICTIVE;
109 else if( BIT_DEPTH > 8 )
110 sps->i_profile_idc = PROFILE_HIGH10;
111 else if( param->analyse.b_transform_8x8 || param->i_cqm_preset != X264_CQM_FLAT )
112 sps->i_profile_idc = PROFILE_HIGH;
113 else if( param->b_cabac || param->i_bframe > 0 || param->b_interlaced || param->b_fake_interlaced || param->analyse.i_weighted_pred > 0 )
114 sps->i_profile_idc = PROFILE_MAIN;
116 sps->i_profile_idc = PROFILE_BASELINE;
118 sps->b_constraint_set0 = sps->i_profile_idc == PROFILE_BASELINE;
119 /* x264 doesn't support the features that are in Baseline and not in Main,
120 * namely arbitrary_slice_order and slice_groups. */
121 sps->b_constraint_set1 = sps->i_profile_idc <= PROFILE_MAIN;
122 /* Never set constraint_set2, it is not necessary and not used in real world. */
123 sps->b_constraint_set2 = 0;
124 sps->b_constraint_set3 = 0;
126 sps->i_level_idc = param->i_level_idc;
127 if( param->i_level_idc == 9 && ( sps->i_profile_idc >= PROFILE_BASELINE && sps->i_profile_idc <= PROFILE_EXTENDED ) )
129 sps->b_constraint_set3 = 1; /* level 1b with Baseline, Main or Extended profile is signalled via constraint_set3 */
130 sps->i_level_idc = 11;
132 /* High 10 Intra profile */
133 if( param->i_keyint_max == 1 && sps->i_profile_idc == PROFILE_HIGH10 )
134 sps->b_constraint_set3 = 1;
136 sps->vui.i_num_reorder_frames = param->i_bframe_pyramid ? 2 : param->i_bframe ? 1 : 0;
137 /* extra slot with pyramid so that we don't have to override the
138 * order of forgetting old pictures */
139 sps->vui.i_max_dec_frame_buffering =
140 sps->i_num_ref_frames = X264_MIN(X264_REF_MAX, X264_MAX4(param->i_frame_reference, 1 + sps->vui.i_num_reorder_frames,
141 param->i_bframe_pyramid ? 4 : 1, param->i_dpb_size));
142 sps->i_num_ref_frames -= param->i_bframe_pyramid == X264_B_PYRAMID_STRICT;
143 if( param->i_keyint_max == 1 )
145 sps->i_num_ref_frames = 0;
146 sps->vui.i_max_dec_frame_buffering = 0;
149 /* number of refs + current frame */
150 int max_frame_num = sps->vui.i_max_dec_frame_buffering * (!!param->i_bframe_pyramid+1) + 1;
151 /* Intra refresh cannot write a recovery time greater than max frame num-1 */
152 if( param->b_intra_refresh )
154 int time_to_recovery = X264_MIN( sps->i_mb_width - 1, param->i_keyint_max ) + param->i_bframe - 1;
155 max_frame_num = X264_MAX( max_frame_num, time_to_recovery+1 );
158 sps->i_log2_max_frame_num = 4;
159 while( (1 << sps->i_log2_max_frame_num) <= max_frame_num )
160 sps->i_log2_max_frame_num++;
162 sps->i_poc_type = param->i_bframe ? 0 : 2;
163 if( sps->i_poc_type == 0 )
165 int max_delta_poc = (param->i_bframe + 2) * (!!param->i_bframe_pyramid + 1) * 2;
166 sps->i_log2_max_poc_lsb = 4;
167 while( (1 << sps->i_log2_max_poc_lsb) <= max_delta_poc * 2 )
168 sps->i_log2_max_poc_lsb++;
170 else if( sps->i_poc_type == 1 )
175 sps->b_delta_pic_order_always_zero = 1;
176 sps->i_offset_for_non_ref_pic = 0;
177 sps->i_offset_for_top_to_bottom_field = 0;
178 sps->i_num_ref_frames_in_poc_cycle = 0;
180 for( i = 0; i < sps->i_num_ref_frames_in_poc_cycle; i++ )
182 sps->i_offset_for_ref_frame[i] = 0;
188 sps->b_gaps_in_frame_num_value_allowed = 0;
189 sps->b_frame_mbs_only = !(param->b_interlaced || param->b_fake_interlaced);
190 if( !sps->b_frame_mbs_only )
191 sps->i_mb_height = ( sps->i_mb_height + 1 ) & ~1;
192 sps->b_mb_adaptive_frame_field = param->b_interlaced;
193 sps->b_direct8x8_inference = 1;
195 sps->crop.i_left = 0;
197 sps->crop.i_right = sps->i_mb_width*16 - param->i_width;
198 sps->crop.i_bottom = (sps->i_mb_height*16 - param->i_height) >> !sps->b_frame_mbs_only;
199 sps->b_crop = sps->crop.i_left || sps->crop.i_top ||
200 sps->crop.i_right || sps->crop.i_bottom;
202 sps->vui.b_aspect_ratio_info_present = 0;
203 if( param->vui.i_sar_width > 0 && param->vui.i_sar_height > 0 )
205 sps->vui.b_aspect_ratio_info_present = 1;
206 sps->vui.i_sar_width = param->vui.i_sar_width;
207 sps->vui.i_sar_height= param->vui.i_sar_height;
210 sps->vui.b_overscan_info_present = ( param->vui.i_overscan ? 1 : 0 );
211 if( sps->vui.b_overscan_info_present )
212 sps->vui.b_overscan_info = ( param->vui.i_overscan == 2 ? 1 : 0 );
214 sps->vui.b_signal_type_present = 0;
215 sps->vui.i_vidformat = ( param->vui.i_vidformat <= 5 ? param->vui.i_vidformat : 5 );
216 sps->vui.b_fullrange = ( param->vui.b_fullrange ? 1 : 0 );
217 sps->vui.b_color_description_present = 0;
219 sps->vui.i_colorprim = ( param->vui.i_colorprim <= 9 ? param->vui.i_colorprim : 2 );
220 sps->vui.i_transfer = ( param->vui.i_transfer <= 11 ? param->vui.i_transfer : 2 );
221 sps->vui.i_colmatrix = ( param->vui.i_colmatrix <= 9 ? param->vui.i_colmatrix : 2 );
222 if( sps->vui.i_colorprim != 2 ||
223 sps->vui.i_transfer != 2 ||
224 sps->vui.i_colmatrix != 2 )
226 sps->vui.b_color_description_present = 1;
229 if( sps->vui.i_vidformat != 5 ||
230 sps->vui.b_fullrange ||
231 sps->vui.b_color_description_present )
233 sps->vui.b_signal_type_present = 1;
236 /* FIXME: not sufficient for interlaced video */
237 sps->vui.b_chroma_loc_info_present = ( param->vui.i_chroma_loc ? 1 : 0 );
238 if( sps->vui.b_chroma_loc_info_present )
240 sps->vui.i_chroma_loc_top = param->vui.i_chroma_loc;
241 sps->vui.i_chroma_loc_bottom = param->vui.i_chroma_loc;
244 sps->vui.b_timing_info_present = param->i_timebase_num > 0 && param->i_timebase_den > 0;
246 if( sps->vui.b_timing_info_present )
248 sps->vui.i_num_units_in_tick = param->i_timebase_num;
249 sps->vui.i_time_scale = param->i_timebase_den * 2;
250 sps->vui.b_fixed_frame_rate = !param->b_vfr_input;
253 sps->vui.b_vcl_hrd_parameters_present = 0; // we don't support VCL HRD
254 sps->vui.b_nal_hrd_parameters_present = !!param->i_nal_hrd;
255 sps->vui.b_pic_struct_present = param->b_pic_struct;
257 // NOTE: HRD related parts of the SPS are initialised in x264_ratecontrol_init_reconfigurable
259 sps->vui.b_bitstream_restriction = 1;
260 if( sps->vui.b_bitstream_restriction )
262 sps->vui.b_motion_vectors_over_pic_boundaries = 1;
263 sps->vui.i_max_bytes_per_pic_denom = 0;
264 sps->vui.i_max_bits_per_mb_denom = 0;
265 sps->vui.i_log2_max_mv_length_horizontal =
266 sps->vui.i_log2_max_mv_length_vertical = (int)log2f( X264_MAX( 1, param->analyse.i_mv_range*4-1 ) ) + 1;
270 void x264_sps_write( bs_t *s, x264_sps_t *sps )
273 bs_write( s, 8, sps->i_profile_idc );
274 bs_write( s, 1, sps->b_constraint_set0 );
275 bs_write( s, 1, sps->b_constraint_set1 );
276 bs_write( s, 1, sps->b_constraint_set2 );
277 bs_write( s, 1, sps->b_constraint_set3 );
279 bs_write( s, 4, 0 ); /* reserved */
281 bs_write( s, 8, sps->i_level_idc );
283 bs_write_ue( s, sps->i_id );
285 if( sps->i_profile_idc >= PROFILE_HIGH )
287 bs_write_ue( s, 1 ); // chroma_format_idc = 4:2:0
288 bs_write_ue( s, BIT_DEPTH-8 ); // bit_depth_luma_minus8
289 bs_write_ue( s, BIT_DEPTH-8 ); // bit_depth_chroma_minus8
290 bs_write( s, 1, sps->b_qpprime_y_zero_transform_bypass );
291 bs_write( s, 1, 0 ); // seq_scaling_matrix_present_flag
294 bs_write_ue( s, sps->i_log2_max_frame_num - 4 );
295 bs_write_ue( s, sps->i_poc_type );
296 if( sps->i_poc_type == 0 )
298 bs_write_ue( s, sps->i_log2_max_poc_lsb - 4 );
300 else if( sps->i_poc_type == 1 )
302 bs_write( s, 1, sps->b_delta_pic_order_always_zero );
303 bs_write_se( s, sps->i_offset_for_non_ref_pic );
304 bs_write_se( s, sps->i_offset_for_top_to_bottom_field );
305 bs_write_ue( s, sps->i_num_ref_frames_in_poc_cycle );
307 for( int i = 0; i < sps->i_num_ref_frames_in_poc_cycle; i++ )
308 bs_write_se( s, sps->i_offset_for_ref_frame[i] );
310 bs_write_ue( s, sps->i_num_ref_frames );
311 bs_write( s, 1, sps->b_gaps_in_frame_num_value_allowed );
312 bs_write_ue( s, sps->i_mb_width - 1 );
313 bs_write_ue( s, (sps->i_mb_height >> !sps->b_frame_mbs_only) - 1);
314 bs_write( s, 1, sps->b_frame_mbs_only );
315 if( !sps->b_frame_mbs_only )
316 bs_write( s, 1, sps->b_mb_adaptive_frame_field );
317 bs_write( s, 1, sps->b_direct8x8_inference );
319 bs_write( s, 1, sps->b_crop );
322 bs_write_ue( s, sps->crop.i_left / 2 );
323 bs_write_ue( s, sps->crop.i_right / 2 );
324 bs_write_ue( s, sps->crop.i_top / 2 );
325 bs_write_ue( s, sps->crop.i_bottom / 2 );
328 bs_write( s, 1, sps->b_vui );
331 bs_write1( s, sps->vui.b_aspect_ratio_info_present );
332 if( sps->vui.b_aspect_ratio_info_present )
335 static const struct { uint8_t w, h, sar; } sar[] =
337 { 1, 1, 1 }, { 12, 11, 2 }, { 10, 11, 3 }, { 16, 11, 4 },
338 { 40, 33, 5 }, { 24, 11, 6 }, { 20, 11, 7 }, { 32, 11, 8 },
339 { 80, 33, 9 }, { 18, 11, 10}, { 15, 11, 11}, { 64, 33, 12},
340 { 160,99, 13}, { 0, 0, 255 }
342 for( i = 0; sar[i].sar != 255; i++ )
344 if( sar[i].w == sps->vui.i_sar_width &&
345 sar[i].h == sps->vui.i_sar_height )
348 bs_write( s, 8, sar[i].sar );
349 if( sar[i].sar == 255 ) /* aspect_ratio_idc (extended) */
351 bs_write( s, 16, sps->vui.i_sar_width );
352 bs_write( s, 16, sps->vui.i_sar_height );
356 bs_write1( s, sps->vui.b_overscan_info_present );
357 if( sps->vui.b_overscan_info_present )
358 bs_write1( s, sps->vui.b_overscan_info );
360 bs_write1( s, sps->vui.b_signal_type_present );
361 if( sps->vui.b_signal_type_present )
363 bs_write( s, 3, sps->vui.i_vidformat );
364 bs_write1( s, sps->vui.b_fullrange );
365 bs_write1( s, sps->vui.b_color_description_present );
366 if( sps->vui.b_color_description_present )
368 bs_write( s, 8, sps->vui.i_colorprim );
369 bs_write( s, 8, sps->vui.i_transfer );
370 bs_write( s, 8, sps->vui.i_colmatrix );
374 bs_write1( s, sps->vui.b_chroma_loc_info_present );
375 if( sps->vui.b_chroma_loc_info_present )
377 bs_write_ue( s, sps->vui.i_chroma_loc_top );
378 bs_write_ue( s, sps->vui.i_chroma_loc_bottom );
381 bs_write1( s, sps->vui.b_timing_info_present );
382 if( sps->vui.b_timing_info_present )
384 bs_write32( s, sps->vui.i_num_units_in_tick );
385 bs_write32( s, sps->vui.i_time_scale );
386 bs_write1( s, sps->vui.b_fixed_frame_rate );
389 bs_write1( s, sps->vui.b_nal_hrd_parameters_present );
390 if( sps->vui.b_nal_hrd_parameters_present )
392 bs_write_ue( s, sps->vui.hrd.i_cpb_cnt - 1 );
393 bs_write( s, 4, sps->vui.hrd.i_bit_rate_scale );
394 bs_write( s, 4, sps->vui.hrd.i_cpb_size_scale );
396 bs_write_ue( s, sps->vui.hrd.i_bit_rate_value - 1 );
397 bs_write_ue( s, sps->vui.hrd.i_cpb_size_value - 1 );
399 bs_write1( s, sps->vui.hrd.b_cbr_hrd );
401 bs_write( s, 5, sps->vui.hrd.i_initial_cpb_removal_delay_length - 1 );
402 bs_write( s, 5, sps->vui.hrd.i_cpb_removal_delay_length - 1 );
403 bs_write( s, 5, sps->vui.hrd.i_dpb_output_delay_length - 1 );
404 bs_write( s, 5, sps->vui.hrd.i_time_offset_length );
407 bs_write1( s, sps->vui.b_vcl_hrd_parameters_present );
409 if( sps->vui.b_nal_hrd_parameters_present || sps->vui.b_vcl_hrd_parameters_present )
410 bs_write1( s, 0 ); /* low_delay_hrd_flag */
412 bs_write1( s, sps->vui.b_pic_struct_present );
413 bs_write1( s, sps->vui.b_bitstream_restriction );
414 if( sps->vui.b_bitstream_restriction )
416 bs_write1( s, sps->vui.b_motion_vectors_over_pic_boundaries );
417 bs_write_ue( s, sps->vui.i_max_bytes_per_pic_denom );
418 bs_write_ue( s, sps->vui.i_max_bits_per_mb_denom );
419 bs_write_ue( s, sps->vui.i_log2_max_mv_length_horizontal );
420 bs_write_ue( s, sps->vui.i_log2_max_mv_length_vertical );
421 bs_write_ue( s, sps->vui.i_num_reorder_frames );
422 bs_write_ue( s, sps->vui.i_max_dec_frame_buffering );
426 bs_rbsp_trailing( s );
430 void x264_pps_init( x264_pps_t *pps, int i_id, x264_param_t *param, x264_sps_t *sps )
433 pps->i_sps_id = sps->i_id;
434 pps->b_cabac = param->b_cabac;
436 pps->b_pic_order = param->b_interlaced;
437 pps->i_num_slice_groups = 1;
439 pps->i_num_ref_idx_l0_default_active = param->i_frame_reference;
440 pps->i_num_ref_idx_l1_default_active = 1;
442 pps->b_weighted_pred = param->analyse.i_weighted_pred > 0;
443 pps->b_weighted_bipred = param->analyse.b_weighted_bipred ? 2 : 0;
445 pps->i_pic_init_qp = param->rc.i_rc_method == X264_RC_ABR ? 26 + QP_BD_OFFSET : param->rc.i_qp_constant;
446 pps->i_pic_init_qs = 26 + QP_BD_OFFSET;
448 pps->i_chroma_qp_index_offset = param->analyse.i_chroma_qp_offset;
449 pps->b_deblocking_filter_control = 1;
450 pps->b_constrained_intra_pred = param->b_constrained_intra;
451 pps->b_redundant_pic_cnt = 0;
453 pps->b_transform_8x8_mode = param->analyse.b_transform_8x8 ? 1 : 0;
455 pps->i_cqm_preset = param->i_cqm_preset;
456 switch( pps->i_cqm_preset )
459 for( int i = 0; i < 6; i++ )
460 pps->scaling_list[i] = x264_cqm_flat16;
463 for( int i = 0; i < 6; i++ )
464 pps->scaling_list[i] = x264_cqm_jvt[i];
466 case X264_CQM_CUSTOM:
467 /* match the transposed DCT & zigzag */
468 transpose( param->cqm_4iy, 4 );
469 transpose( param->cqm_4ic, 4 );
470 transpose( param->cqm_4py, 4 );
471 transpose( param->cqm_4pc, 4 );
472 transpose( param->cqm_8iy, 8 );
473 transpose( param->cqm_8py, 8 );
474 pps->scaling_list[CQM_4IY] = param->cqm_4iy;
475 pps->scaling_list[CQM_4IC] = param->cqm_4ic;
476 pps->scaling_list[CQM_4PY] = param->cqm_4py;
477 pps->scaling_list[CQM_4PC] = param->cqm_4pc;
478 pps->scaling_list[CQM_8IY+4] = param->cqm_8iy;
479 pps->scaling_list[CQM_8PY+4] = param->cqm_8py;
480 for( int i = 0; i < 6; i++ )
481 for( int j = 0; j < (i < 4 ? 16 : 64); j++ )
482 if( pps->scaling_list[i][j] == 0 )
483 pps->scaling_list[i] = x264_cqm_jvt[i];
488 void x264_pps_write( bs_t *s, x264_pps_t *pps )
491 bs_write_ue( s, pps->i_id );
492 bs_write_ue( s, pps->i_sps_id );
494 bs_write( s, 1, pps->b_cabac );
495 bs_write( s, 1, pps->b_pic_order );
496 bs_write_ue( s, pps->i_num_slice_groups - 1 );
498 bs_write_ue( s, pps->i_num_ref_idx_l0_default_active - 1 );
499 bs_write_ue( s, pps->i_num_ref_idx_l1_default_active - 1 );
500 bs_write( s, 1, pps->b_weighted_pred );
501 bs_write( s, 2, pps->b_weighted_bipred );
503 bs_write_se( s, pps->i_pic_init_qp - 26 - QP_BD_OFFSET );
504 bs_write_se( s, pps->i_pic_init_qs - 26 - QP_BD_OFFSET );
505 bs_write_se( s, pps->i_chroma_qp_index_offset );
507 bs_write( s, 1, pps->b_deblocking_filter_control );
508 bs_write( s, 1, pps->b_constrained_intra_pred );
509 bs_write( s, 1, pps->b_redundant_pic_cnt );
511 if( pps->b_transform_8x8_mode || pps->i_cqm_preset != X264_CQM_FLAT )
513 bs_write( s, 1, pps->b_transform_8x8_mode );
514 bs_write( s, 1, (pps->i_cqm_preset != X264_CQM_FLAT) );
515 if( pps->i_cqm_preset != X264_CQM_FLAT )
517 scaling_list_write( s, pps, CQM_4IY );
518 scaling_list_write( s, pps, CQM_4IC );
519 bs_write( s, 1, 0 ); // Cr = Cb
520 scaling_list_write( s, pps, CQM_4PY );
521 scaling_list_write( s, pps, CQM_4PC );
522 bs_write( s, 1, 0 ); // Cr = Cb
523 if( pps->b_transform_8x8_mode )
525 scaling_list_write( s, pps, CQM_8IY+4 );
526 scaling_list_write( s, pps, CQM_8PY+4 );
529 bs_write_se( s, pps->i_chroma_qp_index_offset );
532 bs_rbsp_trailing( s );
536 void x264_sei_recovery_point_write( x264_t *h, bs_t *s, int recovery_frame_cnt )
539 uint8_t tmp_buf[100];
540 bs_init( &q, tmp_buf, 100 );
544 bs_write_ue( &q, recovery_frame_cnt ); // recovery_frame_cnt
545 bs_write( &q, 1, 1 ); //exact_match_flag 1
546 bs_write( &q, 1, 0 ); //broken_link_flag 0
547 bs_write( &q, 2, 0 ); //changing_slice_group 0
552 x264_sei_write( s, tmp_buf, bs_pos( &q ) / 8, SEI_RECOVERY_POINT );
556 int x264_sei_version_write( x264_t *h, bs_t *s )
558 // random ID number generated according to ISO-11578
559 static const uint8_t uuid[16] =
561 0xdc, 0x45, 0xe9, 0xbd, 0xe6, 0xd9, 0x48, 0xb7,
562 0x96, 0x2c, 0xd8, 0x20, 0xd9, 0x23, 0xee, 0xef
564 char *opts = x264_param2string( &h->param, 0 );
570 CHECKED_MALLOC( payload, 200 + strlen( opts ) );
572 memcpy( payload, uuid, 16 );
573 sprintf( payload+16, "x264 - core %d%s - H.264/MPEG-4 AVC codec - "
574 "Copyleft 2003-2010 - http://www.videolan.org/x264.html - options: %s",
575 X264_BUILD, X264_VERSION, opts );
576 length = strlen(payload)+1;
578 x264_sei_write( s, (uint8_t *)payload, length, SEI_USER_DATA_UNREGISTERED );
581 x264_free( payload );
588 void x264_sei_buffering_period_write( x264_t *h, bs_t *s )
590 x264_sps_t *sps = h->sps;
592 uint8_t tmp_buf[100];
593 bs_init( &q, tmp_buf, 100 );
596 bs_write_ue( &q, sps->i_id );
598 if( sps->vui.b_nal_hrd_parameters_present )
600 bs_write( &q, sps->vui.hrd.i_initial_cpb_removal_delay_length, h->initial_cpb_removal_delay );
601 bs_write( &q, sps->vui.hrd.i_initial_cpb_removal_delay_length, h->initial_cpb_removal_delay_offset );
607 x264_sei_write( s, tmp_buf, bs_pos( &q ) / 8, SEI_BUFFERING_PERIOD );
610 void x264_sei_pic_timing_write( x264_t *h, bs_t *s )
612 x264_sps_t *sps = h->sps;
614 uint8_t tmp_buf[100];
615 bs_init( &q, tmp_buf, 100 );
619 if( sps->vui.b_nal_hrd_parameters_present || sps->vui.b_vcl_hrd_parameters_present )
621 bs_write( &q, sps->vui.hrd.i_cpb_removal_delay_length, h->fenc->i_cpb_delay );
622 bs_write( &q, sps->vui.hrd.i_dpb_output_delay_length, h->fenc->i_dpb_output_delay );
625 if( sps->vui.b_pic_struct_present )
627 bs_write( &q, 4, h->fenc->i_pic_struct-1 ); // We use index 0 for "Auto"
629 // These clock timestamps are not standardised so we don't set them
630 // They could be time of origin, capture or alternative ideal display
631 for( int i = 0; i < num_clock_ts[h->fenc->i_pic_struct]; i++ )
632 bs_write1( &q, 0 ); // clock_timestamp_flag
638 x264_sei_write( s, tmp_buf, bs_pos( &q ) / 8, SEI_PIC_TIMING );
641 void x264_filler_write( x264_t *h, bs_t *s, int filler )
645 for( int i = 0; i < filler; i++ )
646 bs_write( s, 8, 0xff );
648 bs_rbsp_trailing( s );
652 const x264_level_t x264_levels[] =
654 { 10, 1485, 99, 152064, 64, 175, 64, 64, 0, 2, 0, 0, 1 },
655 { 9, 1485, 99, 152064, 128, 350, 64, 64, 0, 2, 0, 0, 1 }, /* "1b" */
656 { 11, 3000, 396, 345600, 192, 500, 128, 64, 0, 2, 0, 0, 1 },
657 { 12, 6000, 396, 912384, 384, 1000, 128, 64, 0, 2, 0, 0, 1 },
658 { 13, 11880, 396, 912384, 768, 2000, 128, 64, 0, 2, 0, 0, 1 },
659 { 20, 11880, 396, 912384, 2000, 2000, 128, 64, 0, 2, 0, 0, 1 },
660 { 21, 19800, 792, 1824768, 4000, 4000, 256, 64, 0, 2, 0, 0, 0 },
661 { 22, 20250, 1620, 3110400, 4000, 4000, 256, 64, 0, 2, 0, 0, 0 },
662 { 30, 40500, 1620, 3110400, 10000, 10000, 256, 32, 22, 2, 0, 1, 0 },
663 { 31, 108000, 3600, 6912000, 14000, 14000, 512, 16, 60, 4, 1, 1, 0 },
664 { 32, 216000, 5120, 7864320, 20000, 20000, 512, 16, 60, 4, 1, 1, 0 },
665 { 40, 245760, 8192, 12582912, 20000, 25000, 512, 16, 60, 4, 1, 1, 0 },
666 { 41, 245760, 8192, 12582912, 50000, 62500, 512, 16, 24, 2, 1, 1, 0 },
667 { 42, 522240, 8704, 13369344, 50000, 62500, 512, 16, 24, 2, 1, 1, 1 },
668 { 50, 589824, 22080, 42393600, 135000, 135000, 512, 16, 24, 2, 1, 1, 1 },
669 { 51, 983040, 36864, 70778880, 240000, 240000, 512, 16, 24, 2, 1, 1, 1 },
676 x264_log( h, X264_LOG_WARNING, __VA_ARGS__ );\
680 int x264_validate_levels( x264_t *h, int verbose )
683 int mbs = h->sps->i_mb_width * h->sps->i_mb_height;
684 int dpb = mbs * 384 * h->sps->vui.i_max_dec_frame_buffering;
685 int cbp_factor = h->sps->i_profile_idc==PROFILE_HIGH10 ? 12 :
686 h->sps->i_profile_idc==PROFILE_HIGH ? 5 : 4;
688 const x264_level_t *l = x264_levels;
689 while( l->level_idc != 0 && l->level_idc != h->param.i_level_idc )
692 if( l->frame_size < mbs
693 || l->frame_size*8 < h->sps->i_mb_width * h->sps->i_mb_width
694 || l->frame_size*8 < h->sps->i_mb_height * h->sps->i_mb_height )
695 ERROR( "frame MB size (%dx%d) > level limit (%d)\n",
696 h->sps->i_mb_width, h->sps->i_mb_height, l->frame_size );
698 ERROR( "DPB size (%d frames, %d bytes) > level limit (%d frames, %d bytes)\n",
699 h->sps->vui.i_max_dec_frame_buffering, dpb, (int)(l->dpb / (384*mbs)), l->dpb );
701 #define CHECK( name, limit, val ) \
702 if( (val) > (limit) ) \
703 ERROR( name " (%d) > level limit (%d)\n", (int)(val), (limit) );
705 CHECK( "VBV bitrate", (l->bitrate * cbp_factor) / 4, h->param.rc.i_vbv_max_bitrate );
706 CHECK( "VBV buffer", (l->cpb * cbp_factor) / 4, h->param.rc.i_vbv_buffer_size );
707 CHECK( "MV range", l->mv_range, h->param.analyse.i_mv_range );
708 CHECK( "interlaced", !l->frame_only, h->param.b_interlaced );
709 CHECK( "fake interlaced", !l->frame_only, h->param.b_fake_interlaced );
711 if( h->param.i_fps_den > 0 )
712 CHECK( "MB rate", l->mbps, (int64_t)mbs * h->param.i_fps_num / h->param.i_fps_den );
714 /* TODO check the rest of the limits */