1 /*****************************************************************************
2 * set: h264 encoder (SPS and PPS init and write)
3 *****************************************************************************
4 * Copyright (C) 2003 Laurent Aimar
5 * $Id: set.c,v 1.1 2004/06/03 19:27:08 fenrir Exp $
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
36 #include "common/common.h"
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 int *zigzag = idx<4 ? x264_zigzag_scan4 : x264_zigzag_scan8;
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( 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 void x264_sps_init( x264_sps_t *sps, int i_id, x264_param_t *param )
80 sps->b_qpprime_y_zero_transform_bypass = !param->rc.b_cbr && param->rc.i_qp_constant == 0;
81 if( sps->b_qpprime_y_zero_transform_bypass )
82 sps->i_profile_idc = PROFILE_HIGH444;
83 else if( param->analyse.b_transform_8x8 || param->i_cqm_preset != X264_CQM_FLAT )
84 sps->i_profile_idc = PROFILE_HIGH;
85 else if( param->b_cabac || param->i_bframe > 0 )
86 sps->i_profile_idc = PROFILE_MAIN;
88 sps->i_profile_idc = PROFILE_BASELINE;
89 sps->i_level_idc = param->i_level_idc;
91 sps->b_constraint_set0 = 0;
92 sps->b_constraint_set1 = 0;
93 sps->b_constraint_set2 = 0;
95 sps->i_log2_max_frame_num = 4; /* at least 4 */
96 while( (1 << sps->i_log2_max_frame_num) <= param->i_keyint_max )
98 sps->i_log2_max_frame_num++;
100 sps->i_log2_max_frame_num++; /* just in case */
103 if( sps->i_poc_type == 0 )
105 sps->i_log2_max_poc_lsb = sps->i_log2_max_frame_num + 1; /* max poc = 2*frame_num */
107 else if( sps->i_poc_type == 1 )
112 sps->b_delta_pic_order_always_zero = 1;
113 sps->i_offset_for_non_ref_pic = 0;
114 sps->i_offset_for_top_to_bottom_field = 0;
115 sps->i_num_ref_frames_in_poc_cycle = 0;
117 for( i = 0; i < sps->i_num_ref_frames_in_poc_cycle; i++ )
119 sps->i_offset_for_ref_frame[i] = 0;
123 sps->vui.i_num_reorder_frames = param->b_bframe_pyramid ? 2 : param->i_bframe ? 1 : 0;
124 /* extra slot with pyramid so that we don't have to override the
125 * order of forgetting old pictures */
126 sps->vui.i_max_dec_frame_buffering =
127 sps->i_num_ref_frames = X264_MIN(16, param->i_frame_reference + sps->vui.i_num_reorder_frames + param->b_bframe_pyramid);
129 sps->b_gaps_in_frame_num_value_allowed = 0;
130 sps->i_mb_width = ( param->i_width + 15 ) / 16;
131 sps->i_mb_height= ( param->i_height + 15 )/ 16;
132 sps->b_frame_mbs_only = 1;
133 sps->b_mb_adaptive_frame_field = 0;
134 sps->b_direct8x8_inference = 0;
135 if( sps->b_frame_mbs_only == 0 ||
136 !(param->analyse.inter & X264_ANALYSE_PSUB8x8) )
138 sps->b_direct8x8_inference = 1;
141 sps->crop.i_left = 0;
143 sps->crop.i_right = (- param->i_width) & 15;
144 sps->crop.i_bottom = (- param->i_height) & 15;
145 sps->b_crop = sps->crop.i_left || sps->crop.i_top ||
146 sps->crop.i_right || sps->crop.i_bottom;
149 sps->vui.b_aspect_ratio_info_present = 0;
151 if( param->vui.i_sar_width > 0 && param->vui.i_sar_height > 0 )
153 sps->vui.b_aspect_ratio_info_present = 1;
154 sps->vui.i_sar_width = param->vui.i_sar_width;
155 sps->vui.i_sar_height= param->vui.i_sar_height;
157 sps->b_vui |= sps->vui.b_aspect_ratio_info_present;
159 sps->vui.b_overscan_info_present = ( param->vui.i_overscan ? 1 : 0 );
160 if( sps->vui.b_overscan_info_present )
161 sps->vui.b_overscan_info = ( param->vui.i_overscan == 2 ? 1 : 0 );
162 sps->b_vui |= sps->vui.b_overscan_info_present;
164 sps->vui.b_signal_type_present = 0;
165 sps->vui.i_vidformat = ( param->vui.i_vidformat <= 5 ? param->vui.i_vidformat : 5 );
166 sps->vui.b_fullrange = ( param->vui.b_fullrange ? 1 : 0 );
167 sps->vui.b_color_description_present = 0;
169 sps->vui.i_colorprim = ( param->vui.i_colorprim <= 9 ? param->vui.i_colorprim : 2 );
170 sps->vui.i_transfer = ( param->vui.i_transfer <= 11 ? param->vui.i_transfer : 2 );
171 sps->vui.i_colmatrix = ( param->vui.i_colmatrix <= 9 ? param->vui.i_colmatrix : 2 );
172 if( sps->vui.i_colorprim != 2 ||
173 sps->vui.i_transfer != 2 ||
174 sps->vui.i_colmatrix != 2 )
176 sps->vui.b_color_description_present = 1;
179 if( sps->vui.i_vidformat != 5 ||
180 sps->vui.b_fullrange ||
181 sps->vui.b_color_description_present )
183 sps->vui.b_signal_type_present = 1;
185 sps->b_vui |= sps->vui.b_signal_type_present;
187 /* FIXME: not sufficient for interlaced video */
188 sps->vui.b_chroma_loc_info_present = ( param->vui.i_chroma_loc ? 1 : 0 );
189 if( sps->vui.b_chroma_loc_info_present )
191 sps->vui.i_chroma_loc_top = param->vui.i_chroma_loc;
192 sps->vui.i_chroma_loc_bottom = param->vui.i_chroma_loc;
194 sps->b_vui |= sps->vui.b_chroma_loc_info_present;
196 sps->vui.b_timing_info_present = 0;
197 if( param->i_fps_num > 0 && param->i_fps_den > 0)
199 sps->vui.b_timing_info_present = 1;
200 /* The standard is confusing me, but this seems to work best
201 with other encoders */
202 sps->vui.i_num_units_in_tick = param->i_fps_den;
203 sps->vui.i_time_scale = param->i_fps_num;
204 sps->vui.b_fixed_frame_rate = 1;
206 sps->b_vui |= sps->vui.b_timing_info_present;
208 sps->vui.b_bitstream_restriction = param->i_bframe > 0;
209 if( sps->vui.b_bitstream_restriction )
211 sps->vui.b_motion_vectors_over_pic_boundaries = 1;
212 sps->vui.i_max_bytes_per_pic_denom = 0;
213 sps->vui.i_max_bits_per_mb_denom = 0;
214 sps->vui.i_log2_max_mv_length_horizontal =
215 sps->vui.i_log2_max_mv_length_vertical = (int)(log(param->analyse.i_mv_range*4-1)/log(2)) + 1;
217 sps->b_vui |= sps->vui.b_bitstream_restriction;
221 void x264_sps_write( bs_t *s, x264_sps_t *sps )
223 bs_write( s, 8, sps->i_profile_idc );
224 bs_write( s, 1, sps->b_constraint_set0 );
225 bs_write( s, 1, sps->b_constraint_set1 );
226 bs_write( s, 1, sps->b_constraint_set2 );
228 bs_write( s, 5, 0 ); /* reserved */
230 bs_write( s, 8, sps->i_level_idc );
232 bs_write_ue( s, sps->i_id );
234 if( sps->i_profile_idc >= PROFILE_HIGH )
236 bs_write_ue( s, 1 ); // chroma_format_idc = 4:2:0
237 bs_write_ue( s, 0 ); // bit_depth_luma_minus8
238 bs_write_ue( s, 0 ); // bit_depth_chroma_minus8
239 bs_write( s, 1, sps->b_qpprime_y_zero_transform_bypass );
240 bs_write( s, 1, 0 ); // seq_scaling_matrix_present_flag
243 bs_write_ue( s, sps->i_log2_max_frame_num - 4 );
244 bs_write_ue( s, sps->i_poc_type );
245 if( sps->i_poc_type == 0 )
247 bs_write_ue( s, sps->i_log2_max_poc_lsb - 4 );
249 else if( sps->i_poc_type == 1 )
253 bs_write( s, 1, sps->b_delta_pic_order_always_zero );
254 bs_write_se( s, sps->i_offset_for_non_ref_pic );
255 bs_write_se( s, sps->i_offset_for_top_to_bottom_field );
256 bs_write_ue( s, sps->i_num_ref_frames_in_poc_cycle );
258 for( i = 0; i < sps->i_num_ref_frames_in_poc_cycle; i++ )
260 bs_write_se( s, sps->i_offset_for_ref_frame[i] );
263 bs_write_ue( s, sps->i_num_ref_frames );
264 bs_write( s, 1, sps->b_gaps_in_frame_num_value_allowed );
265 bs_write_ue( s, sps->i_mb_width - 1 );
266 bs_write_ue( s, sps->i_mb_height - 1);
267 bs_write( s, 1, sps->b_frame_mbs_only );
268 if( !sps->b_frame_mbs_only )
270 bs_write( s, 1, sps->b_mb_adaptive_frame_field );
272 bs_write( s, 1, sps->b_direct8x8_inference );
274 bs_write( s, 1, sps->b_crop );
277 bs_write_ue( s, sps->crop.i_left / 2 );
278 bs_write_ue( s, sps->crop.i_right / 2 );
279 bs_write_ue( s, sps->crop.i_top / 2 );
280 bs_write_ue( s, sps->crop.i_bottom / 2 );
283 bs_write( s, 1, sps->b_vui );
286 bs_write1( s, sps->vui.b_aspect_ratio_info_present );
287 if( sps->vui.b_aspect_ratio_info_present )
290 static const struct { int w, h; int sar; } sar[] =
292 { 1, 1, 1 }, { 12, 11, 2 }, { 10, 11, 3 }, { 16, 11, 4 },
293 { 40, 33, 5 }, { 24, 11, 6 }, { 20, 11, 7 }, { 32, 11, 8 },
294 { 80, 33, 9 }, { 18, 11, 10}, { 15, 11, 11}, { 64, 33, 12},
295 { 160,99, 13}, { 0, 0, -1 }
297 for( i = 0; sar[i].sar != -1; i++ )
299 if( sar[i].w == sps->vui.i_sar_width &&
300 sar[i].h == sps->vui.i_sar_height )
303 if( sar[i].sar != -1 )
305 bs_write( s, 8, sar[i].sar );
309 bs_write( s, 8, 255); /* aspect_ratio_idc (extented) */
310 bs_write( s, 16, sps->vui.i_sar_width );
311 bs_write( s, 16, sps->vui.i_sar_height );
315 bs_write1( s, sps->vui.b_overscan_info_present );
316 if( sps->vui.b_overscan_info_present )
317 bs_write1( s, sps->vui.b_overscan_info );
319 bs_write1( s, sps->vui.b_signal_type_present );
320 if( sps->vui.b_signal_type_present )
322 bs_write( s, 3, sps->vui.i_vidformat );
323 bs_write1( s, sps->vui.b_fullrange );
324 bs_write1( s, sps->vui.b_color_description_present );
325 if( sps->vui.b_color_description_present )
327 bs_write( s, 8, sps->vui.i_colorprim );
328 bs_write( s, 8, sps->vui.i_transfer );
329 bs_write( s, 8, sps->vui.i_colmatrix );
333 bs_write1( s, sps->vui.b_chroma_loc_info_present );
334 if( sps->vui.b_chroma_loc_info_present )
336 bs_write_ue( s, sps->vui.i_chroma_loc_top );
337 bs_write_ue( s, sps->vui.i_chroma_loc_bottom );
340 bs_write1( s, sps->vui.b_timing_info_present );
341 if( sps->vui.b_timing_info_present )
343 bs_write( s, 32, sps->vui.i_num_units_in_tick );
344 bs_write( s, 32, sps->vui.i_time_scale );
345 bs_write1( s, sps->vui.b_fixed_frame_rate );
348 bs_write1( s, 0 ); /* nal_hrd_parameters_present_flag */
349 bs_write1( s, 0 ); /* vcl_hrd_parameters_present_flag */
350 bs_write1( s, 0 ); /* pic_struct_present_flag */
351 bs_write1( s, sps->vui.b_bitstream_restriction );
352 if( sps->vui.b_bitstream_restriction )
354 bs_write1( s, sps->vui.b_motion_vectors_over_pic_boundaries );
355 bs_write_ue( s, sps->vui.i_max_bytes_per_pic_denom );
356 bs_write_ue( s, sps->vui.i_max_bits_per_mb_denom );
357 bs_write_ue( s, sps->vui.i_log2_max_mv_length_horizontal );
358 bs_write_ue( s, sps->vui.i_log2_max_mv_length_vertical );
359 bs_write_ue( s, sps->vui.i_num_reorder_frames );
360 bs_write_ue( s, sps->vui.i_max_dec_frame_buffering );
364 bs_rbsp_trailing( s );
367 void x264_pps_init( x264_pps_t *pps, int i_id, x264_param_t *param, x264_sps_t *sps )
372 pps->i_sps_id = sps->i_id;
373 pps->b_cabac = param->b_cabac;
375 pps->b_pic_order = 0;
376 pps->i_num_slice_groups = 1;
378 pps->i_num_ref_idx_l0_active = 1;
379 pps->i_num_ref_idx_l1_active = 1;
381 pps->b_weighted_pred = 0;
382 pps->b_weighted_bipred = param->analyse.b_weighted_bipred ? 2 : 0;
384 pps->i_pic_init_qp = param->rc.b_cbr ? 26 : param->rc.i_qp_constant;
385 pps->i_pic_init_qs = 26;
387 pps->i_chroma_qp_index_offset = param->analyse.i_chroma_qp_offset;
388 pps->b_deblocking_filter_control = 1;
389 pps->b_constrained_intra_pred = 0;
390 pps->b_redundant_pic_cnt = 0;
392 pps->b_transform_8x8_mode = param->analyse.b_transform_8x8 ? 1 : 0;
394 pps->i_cqm_preset = param->i_cqm_preset;
395 switch( pps->i_cqm_preset )
398 for( i = 0; i < 6; i++ )
399 pps->scaling_list[i] = x264_cqm_flat16;
402 for( i = 0; i < 6; i++ )
403 pps->scaling_list[i] = x264_cqm_jvt[i];
405 case X264_CQM_CUSTOM:
406 pps->scaling_list[CQM_4IY] = param->cqm_4iy;
407 pps->scaling_list[CQM_4IC] = param->cqm_4ic;
408 pps->scaling_list[CQM_4PY] = param->cqm_4py;
409 pps->scaling_list[CQM_4PC] = param->cqm_4pc;
410 pps->scaling_list[CQM_8IY+4] = param->cqm_8iy;
411 pps->scaling_list[CQM_8PY+4] = param->cqm_8py;
412 for( i = 0; i < 6; i++ )
413 for( j = 0; j < (i<4?16:64); j++ )
414 if( pps->scaling_list[i][j] == 0 )
415 pps->scaling_list[i] = x264_cqm_jvt[i];
420 void x264_pps_write( bs_t *s, x264_pps_t *pps )
422 bs_write_ue( s, pps->i_id );
423 bs_write_ue( s, pps->i_sps_id );
425 bs_write( s, 1, pps->b_cabac );
426 bs_write( s, 1, pps->b_pic_order );
427 bs_write_ue( s, pps->i_num_slice_groups - 1 );
429 bs_write_ue( s, pps->i_num_ref_idx_l0_active - 1 );
430 bs_write_ue( s, pps->i_num_ref_idx_l1_active - 1 );
431 bs_write( s, 1, pps->b_weighted_pred );
432 bs_write( s, 2, pps->b_weighted_bipred );
434 bs_write_se( s, pps->i_pic_init_qp - 26 );
435 bs_write_se( s, pps->i_pic_init_qs - 26 );
436 bs_write_se( s, pps->i_chroma_qp_index_offset );
438 bs_write( s, 1, pps->b_deblocking_filter_control );
439 bs_write( s, 1, pps->b_constrained_intra_pred );
440 bs_write( s, 1, pps->b_redundant_pic_cnt );
442 if( pps->b_transform_8x8_mode || pps->i_cqm_preset != X264_CQM_FLAT )
444 bs_write( s, 1, pps->b_transform_8x8_mode );
445 bs_write( s, 1, (pps->i_cqm_preset != X264_CQM_FLAT) );
446 if( pps->i_cqm_preset != X264_CQM_FLAT )
448 scaling_list_write( s, pps, CQM_4IY );
449 scaling_list_write( s, pps, CQM_4IC );
450 bs_write( s, 1, 0 ); // Cr = Cb
451 scaling_list_write( s, pps, CQM_4PY );
452 scaling_list_write( s, pps, CQM_4PC );
453 bs_write( s, 1, 0 ); // Cr = Cb
454 if( pps->b_transform_8x8_mode )
456 scaling_list_write( s, pps, CQM_8IY+4 );
457 scaling_list_write( s, pps, CQM_8PY+4 );
460 bs_write_se( s, pps->i_chroma_qp_index_offset );
463 bs_rbsp_trailing( s );
466 void x264_sei_version_write( x264_t *h, bs_t *s )
469 // random ID number generated according to ISO-11578
470 const uint8_t uuid[16] = {
471 0xdc, 0x45, 0xe9, 0xbd, 0xe6, 0xd9, 0x48, 0xb7,
472 0x96, 0x2c, 0xd8, 0x20, 0xd9, 0x23, 0xee, 0xef
476 char *opts = x264_param2string( &h->param, 0 );
478 sprintf( version, "x264 - core %d%s - H.264/MPEG-4 AVC codec - "
479 "Copyleft 2005 - http://www.videolan.org/x264.html - options: %s",
480 X264_BUILD, X264_VERSION, opts );
482 length = strlen(version)+1+16;
484 bs_write( s, 8, 0x5 ); // payload_type = user_data_unregistered
486 for( i = 0; i <= length-255; i += 255 )
487 bs_write( s, 8, 255 );
488 bs_write( s, 8, length-i );
490 for( i = 0; i < 16; i++ )
491 bs_write( s, 8, uuid[i] );
492 for( i = 0; i < length-16; i++ )
493 bs_write( s, 8, version[i] );
495 bs_rbsp_trailing( s );
498 const x264_level_t x264_levels[] =
500 { 10, 1485, 99, 152064, 64, 175, 64, 64, 0, 0, 0, 1 },
501 // {"1b", 1485, 99, 152064, 128, 350, 64, 64, 0, 0, 0, 1 },
502 { 11, 3000, 396, 345600, 192, 500, 128, 64, 0, 0, 0, 1 },
503 { 12, 6000, 396, 912384, 384, 1000, 128, 64, 0, 0, 0, 1 },
504 { 13, 11880, 396, 912384, 768, 2000, 128, 64, 0, 0, 0, 1 },
505 { 20, 11880, 396, 912384, 2000, 2000, 128, 64, 0, 0, 0, 1 },
506 { 21, 19800, 792, 1824768, 4000, 4000, 256, 64, 0, 0, 0, 0 },
507 { 22, 20250, 1620, 3110400, 4000, 4000, 256, 64, 0, 0, 0, 0 },
508 { 30, 40500, 1620, 3110400, 10000, 10000, 256, 32, 22, 0, 1, 0 },
509 { 31, 108000, 3600, 6912000, 14000, 14000, 512, 16, 60, 1, 1, 0 },
510 { 32, 216000, 5120, 7864320, 20000, 20000, 512, 16, 60, 1, 1, 0 },
511 { 40, 245760, 8192, 12582912, 20000, 25000, 512, 16, 60, 1, 1, 0 },
512 { 41, 245760, 8192, 12582912, 50000, 62500, 512, 16, 24, 1, 1, 0 },
513 { 42, 522240, 8704, 13369344, 50000, 62500, 512, 16, 24, 1, 1, 1 },
514 { 50, 589824, 22080, 42393600, 135000, 135000, 512, 16, 24, 1, 1, 1 },
515 { 51, 983040, 36864, 70778880, 240000, 240000, 512, 16, 24, 1, 1, 1 },
519 void x264_validate_levels( x264_t *h )
523 const x264_level_t *l = x264_levels;
524 while( l->level_idc != 0 && l->level_idc != h->param.i_level_idc )
527 mbs = h->sps->i_mb_width * h->sps->i_mb_height;
528 if( l->frame_size < mbs
529 || l->frame_size*8 < h->sps->i_mb_width * h->sps->i_mb_width
530 || l->frame_size*8 < h->sps->i_mb_height * h->sps->i_mb_height )
531 x264_log( h, X264_LOG_WARNING, "frame MB size (%dx%d) > level limit (%d)\n",
532 h->sps->i_mb_width, h->sps->i_mb_height, l->frame_size );
534 #define CHECK( name, limit, val ) \
535 if( (val) > (limit) ) \
536 x264_log( h, X264_LOG_WARNING, name " (%d) > level limit (%d)\n", (int)(val), (limit) );
538 CHECK( "DPB size", l->dpb, mbs * 384 * h->sps->i_num_ref_frames );
539 CHECK( "VBV bitrate", l->bitrate, h->param.rc.i_vbv_max_bitrate );
540 CHECK( "VBV buffer", l->cpb, h->param.rc.i_vbv_buffer_size );
541 CHECK( "MV range", l->mv_range, h->param.analyse.i_mv_range );
543 if( h->param.i_fps_den > 0 )
544 CHECK( "MB rate", l->mbps, (int64_t)mbs * h->param.i_fps_num / h->param.i_fps_den );
546 /* TODO check the rest of the limits */