1 /*****************************************************************************
2 * common.c: misc common functions
3 *****************************************************************************
4 * Copyright (C) 2003-2016 x264 project
6 * Authors: Loren Merritt <lorenm@u.washington.edu>
7 * 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., 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 *****************************************************************************/
38 const int x264_bit_depth = BIT_DEPTH;
40 const int x264_chroma_format = X264_CHROMA_FORMAT;
42 static void x264_log_default( void *, int, const char *, va_list );
44 /****************************************************************************
46 ****************************************************************************/
47 void x264_param_default( x264_param_t *param )
50 memset( param, 0, sizeof( x264_param_t ) );
53 param->cpu = x264_cpu_detect();
54 param->i_threads = X264_THREADS_AUTO;
55 param->i_lookahead_threads = X264_THREADS_AUTO;
56 param->b_deterministic = 1;
57 param->i_sync_lookahead = X264_SYNC_LOOKAHEAD_AUTO;
59 /* Video properties */
60 param->i_csp = X264_CHROMA_FORMAT ? X264_CHROMA_FORMAT : X264_CSP_I420;
63 param->vui.i_sar_width = 0;
64 param->vui.i_sar_height= 0;
65 param->vui.i_overscan = 0; /* undef */
66 param->vui.i_vidformat = 5; /* undef */
67 param->vui.b_fullrange = -1; /* default depends on input */
68 param->vui.i_colorprim = 2; /* undef */
69 param->vui.i_transfer = 2; /* undef */
70 param->vui.i_colmatrix = -1; /* default depends on input */
71 param->vui.i_chroma_loc= 0; /* left center */
72 param->i_fps_num = 25;
74 param->i_level_idc = -1;
75 param->i_slice_max_size = 0;
76 param->i_slice_max_mbs = 0;
77 param->i_slice_count = 0;
79 /* Encoder parameters */
80 param->i_frame_reference = 3;
81 param->i_keyint_max = 250;
82 param->i_keyint_min = X264_KEYINT_MIN_AUTO;
84 param->i_scenecut_threshold = 40;
85 param->i_bframe_adaptive = X264_B_ADAPT_FAST;
86 param->i_bframe_bias = 0;
87 param->i_bframe_pyramid = X264_B_PYRAMID_NORMAL;
88 param->b_interlaced = 0;
89 param->b_constrained_intra = 0;
91 param->b_deblocking_filter = 1;
92 param->i_deblocking_filter_alphac0 = 0;
93 param->i_deblocking_filter_beta = 0;
96 param->i_cabac_init_idc = 0;
98 param->rc.i_rc_method = X264_RC_CRF;
99 param->rc.i_bitrate = 0;
100 param->rc.f_rate_tolerance = 1.0;
101 param->rc.i_vbv_max_bitrate = 0;
102 param->rc.i_vbv_buffer_size = 0;
103 param->rc.f_vbv_buffer_init = 0.9;
104 param->rc.i_qp_constant = 23 + QP_BD_OFFSET;
105 param->rc.f_rf_constant = 23;
106 param->rc.i_qp_min = 0;
107 param->rc.i_qp_max = QP_MAX;
108 param->rc.i_qp_step = 4;
109 param->rc.f_ip_factor = 1.4;
110 param->rc.f_pb_factor = 1.3;
111 param->rc.i_aq_mode = X264_AQ_VARIANCE;
112 param->rc.f_aq_strength = 1.0;
113 param->rc.i_lookahead = 40;
115 param->rc.b_stat_write = 0;
116 param->rc.psz_stat_out = "x264_2pass.log";
117 param->rc.b_stat_read = 0;
118 param->rc.psz_stat_in = "x264_2pass.log";
119 param->rc.f_qcompress = 0.6;
120 param->rc.f_qblur = 0.5;
121 param->rc.f_complexity_blur = 20;
122 param->rc.i_zones = 0;
123 param->rc.b_mb_tree = 1;
126 param->sc.f_speed = 0;
127 param->sc.i_buffer_size = 30;
128 param->sc.f_buffer_init = 0.75;
131 param->pf_log = x264_log_default;
132 param->p_log_private = NULL;
133 param->i_log_level = X264_LOG_INFO;
136 param->analyse.intra = X264_ANALYSE_I4x4 | X264_ANALYSE_I8x8;
137 param->analyse.inter = X264_ANALYSE_I4x4 | X264_ANALYSE_I8x8
138 | X264_ANALYSE_PSUB16x16 | X264_ANALYSE_BSUB16x16;
139 param->analyse.i_direct_mv_pred = X264_DIRECT_PRED_SPATIAL;
140 param->analyse.i_me_method = X264_ME_HEX;
141 param->analyse.f_psy_rd = 1.0;
142 param->analyse.b_psy = 1;
143 param->analyse.f_psy_trellis = 0;
144 param->analyse.i_me_range = 16;
145 param->analyse.i_subpel_refine = 7;
146 param->analyse.b_mixed_references = 1;
147 param->analyse.b_chroma_me = 1;
148 param->analyse.i_mv_range_thread = -1;
149 param->analyse.i_mv_range = -1; // set from level_idc
150 param->analyse.i_chroma_qp_offset = 0;
151 param->analyse.b_fast_pskip = 1;
152 param->analyse.b_weighted_bipred = 1;
153 param->analyse.i_weighted_pred = X264_WEIGHTP_SMART;
154 param->analyse.b_dct_decimate = 1;
155 param->analyse.b_transform_8x8 = 1;
156 param->analyse.i_trellis = 1;
157 param->analyse.i_luma_deadzone[0] = 21;
158 param->analyse.i_luma_deadzone[1] = 11;
159 param->analyse.b_psnr = 0;
160 param->analyse.b_ssim = 0;
162 param->i_cqm_preset = X264_CQM_FLAT;
163 memset( param->cqm_4iy, 16, sizeof( param->cqm_4iy ) );
164 memset( param->cqm_4py, 16, sizeof( param->cqm_4py ) );
165 memset( param->cqm_4ic, 16, sizeof( param->cqm_4ic ) );
166 memset( param->cqm_4pc, 16, sizeof( param->cqm_4pc ) );
167 memset( param->cqm_8iy, 16, sizeof( param->cqm_8iy ) );
168 memset( param->cqm_8py, 16, sizeof( param->cqm_8py ) );
169 memset( param->cqm_8ic, 16, sizeof( param->cqm_8ic ) );
170 memset( param->cqm_8pc, 16, sizeof( param->cqm_8pc ) );
172 param->b_repeat_headers = 1;
175 param->b_vfr_input = 1;
176 param->i_nal_hrd = X264_NAL_HRD_NONE;
178 param->b_pic_struct = 0;
179 param->b_fake_interlaced = 0;
180 param->i_frame_packing = -1;
182 param->i_opencl_device = 0;
183 param->opencl_device_id = NULL;
184 param->psz_clbin_file = NULL;
187 static int x264_param_apply_preset( x264_param_t *param, const char *preset )
190 int i = strtol( preset, &end, 10 );
191 if( *end == 0 && i >= 0 && i < sizeof(x264_preset_names)/sizeof(*x264_preset_names)-1 )
192 preset = x264_preset_names[i];
194 if( !strcasecmp( preset, "ultrafast" ) )
196 param->i_frame_reference = 1;
197 param->i_scenecut_threshold = 0;
198 param->b_deblocking_filter = 0;
201 param->analyse.intra = 0;
202 param->analyse.inter = 0;
203 param->analyse.b_transform_8x8 = 0;
204 param->analyse.i_me_method = X264_ME_DIA;
205 param->analyse.i_subpel_refine = 0;
206 param->rc.i_aq_mode = 0;
207 param->analyse.b_mixed_references = 0;
208 param->analyse.i_trellis = 0;
209 param->i_bframe_adaptive = X264_B_ADAPT_NONE;
210 param->rc.b_mb_tree = 0;
211 param->analyse.i_weighted_pred = X264_WEIGHTP_NONE;
212 param->analyse.b_weighted_bipred = 0;
213 param->rc.i_lookahead = 0;
215 else if( !strcasecmp( preset, "superfast" ) )
217 param->analyse.inter = X264_ANALYSE_I8x8|X264_ANALYSE_I4x4;
218 param->analyse.i_me_method = X264_ME_DIA;
219 param->analyse.i_subpel_refine = 1;
220 param->i_frame_reference = 1;
221 param->analyse.b_mixed_references = 0;
222 param->analyse.i_trellis = 0;
223 param->rc.b_mb_tree = 0;
224 param->analyse.i_weighted_pred = X264_WEIGHTP_SIMPLE;
225 param->rc.i_lookahead = 0;
227 else if( !strcasecmp( preset, "veryfast" ) )
229 param->analyse.i_me_method = X264_ME_HEX;
230 param->analyse.i_subpel_refine = 2;
231 param->i_frame_reference = 1;
232 param->analyse.b_mixed_references = 0;
233 param->analyse.i_trellis = 0;
234 param->analyse.i_weighted_pred = X264_WEIGHTP_SIMPLE;
235 param->rc.i_lookahead = 10;
237 else if( !strcasecmp( preset, "faster" ) )
239 param->analyse.b_mixed_references = 0;
240 param->i_frame_reference = 2;
241 param->analyse.i_subpel_refine = 4;
242 param->analyse.i_weighted_pred = X264_WEIGHTP_SIMPLE;
243 param->rc.i_lookahead = 20;
245 else if( !strcasecmp( preset, "fast" ) )
247 param->i_frame_reference = 2;
248 param->analyse.i_subpel_refine = 6;
249 param->analyse.i_weighted_pred = X264_WEIGHTP_SIMPLE;
250 param->rc.i_lookahead = 30;
252 else if( !strcasecmp( preset, "medium" ) )
254 /* Default is medium */
256 else if( !strcasecmp( preset, "slow" ) )
258 param->analyse.i_me_method = X264_ME_UMH;
259 param->analyse.i_subpel_refine = 8;
260 param->i_frame_reference = 5;
261 param->i_bframe_adaptive = X264_B_ADAPT_TRELLIS;
262 param->analyse.i_direct_mv_pred = X264_DIRECT_PRED_AUTO;
263 param->rc.i_lookahead = 50;
265 else if( !strcasecmp( preset, "slower" ) )
267 param->analyse.i_me_method = X264_ME_UMH;
268 param->analyse.i_subpel_refine = 9;
269 param->i_frame_reference = 8;
270 param->i_bframe_adaptive = X264_B_ADAPT_TRELLIS;
271 param->analyse.i_direct_mv_pred = X264_DIRECT_PRED_AUTO;
272 param->analyse.inter |= X264_ANALYSE_PSUB8x8;
273 param->analyse.i_trellis = 2;
274 param->rc.i_lookahead = 60;
276 else if( !strcasecmp( preset, "veryslow" ) )
278 param->analyse.i_me_method = X264_ME_UMH;
279 param->analyse.i_subpel_refine = 10;
280 param->analyse.i_me_range = 24;
281 param->i_frame_reference = 16;
282 param->i_bframe_adaptive = X264_B_ADAPT_TRELLIS;
283 param->analyse.i_direct_mv_pred = X264_DIRECT_PRED_AUTO;
284 param->analyse.inter |= X264_ANALYSE_PSUB8x8;
285 param->analyse.i_trellis = 2;
287 param->rc.i_lookahead = 60;
289 else if( !strcasecmp( preset, "placebo" ) )
291 param->analyse.i_me_method = X264_ME_TESA;
292 param->analyse.i_subpel_refine = 11;
293 param->analyse.i_me_range = 24;
294 param->i_frame_reference = 16;
295 param->i_bframe_adaptive = X264_B_ADAPT_TRELLIS;
296 param->analyse.i_direct_mv_pred = X264_DIRECT_PRED_AUTO;
297 param->analyse.inter |= X264_ANALYSE_PSUB8x8;
298 param->analyse.b_fast_pskip = 0;
299 param->analyse.i_trellis = 2;
300 param->i_bframe = 16;
301 param->rc.i_lookahead = 60;
305 x264_log( NULL, X264_LOG_ERROR, "invalid preset '%s'\n", preset );
311 static int x264_param_apply_tune( x264_param_t *param, const char *tune )
313 char *tmp = x264_malloc( strlen( tune ) + 1 );
316 tmp = strcpy( tmp, tune );
317 char *s = strtok( tmp, ",./-+" );
318 int psy_tuning_used = 0;
321 if( !strncasecmp( s, "film", 4 ) )
323 if( psy_tuning_used++ ) goto psy_failure;
324 param->i_deblocking_filter_alphac0 = -1;
325 param->i_deblocking_filter_beta = -1;
326 param->analyse.f_psy_trellis = 0.15;
328 else if( !strncasecmp( s, "animation", 9 ) )
330 if( psy_tuning_used++ ) goto psy_failure;
331 param->i_frame_reference = param->i_frame_reference > 1 ? param->i_frame_reference*2 : 1;
332 param->i_deblocking_filter_alphac0 = 1;
333 param->i_deblocking_filter_beta = 1;
334 param->analyse.f_psy_rd = 0.4;
335 param->rc.f_aq_strength = 0.6;
336 param->i_bframe += 2;
338 else if( !strncasecmp( s, "grain", 5 ) )
340 if( psy_tuning_used++ ) goto psy_failure;
341 param->i_deblocking_filter_alphac0 = -2;
342 param->i_deblocking_filter_beta = -2;
343 param->analyse.f_psy_trellis = 0.25;
344 param->analyse.b_dct_decimate = 0;
345 param->rc.f_pb_factor = 1.1;
346 param->rc.f_ip_factor = 1.1;
347 param->rc.f_aq_strength = 0.5;
348 param->analyse.i_luma_deadzone[0] = 6;
349 param->analyse.i_luma_deadzone[1] = 6;
350 param->rc.f_qcompress = 0.8;
352 else if( !strncasecmp( s, "stillimage", 10 ) )
354 if( psy_tuning_used++ ) goto psy_failure;
355 param->i_deblocking_filter_alphac0 = -3;
356 param->i_deblocking_filter_beta = -3;
357 param->analyse.f_psy_rd = 2.0;
358 param->analyse.f_psy_trellis = 0.7;
359 param->rc.f_aq_strength = 1.2;
361 else if( !strncasecmp( s, "psnr", 4 ) )
363 if( psy_tuning_used++ ) goto psy_failure;
364 param->rc.i_aq_mode = X264_AQ_NONE;
365 param->analyse.b_psy = 0;
367 else if( !strncasecmp( s, "ssim", 4 ) )
369 if( psy_tuning_used++ ) goto psy_failure;
370 param->rc.i_aq_mode = X264_AQ_AUTOVARIANCE;
371 param->analyse.b_psy = 0;
373 else if( !strncasecmp( s, "fastdecode", 10 ) )
375 param->b_deblocking_filter = 0;
377 param->analyse.b_weighted_bipred = 0;
378 param->analyse.i_weighted_pred = X264_WEIGHTP_NONE;
380 else if( !strncasecmp( s, "zerolatency", 11 ) )
382 param->rc.i_lookahead = 0;
383 param->i_sync_lookahead = 0;
385 param->b_sliced_threads = 1;
386 param->b_vfr_input = 0;
387 param->rc.b_mb_tree = 0;
389 else if( !strncasecmp( s, "touhou", 6 ) )
391 if( psy_tuning_used++ ) goto psy_failure;
392 param->i_frame_reference = param->i_frame_reference > 1 ? param->i_frame_reference*2 : 1;
393 param->i_deblocking_filter_alphac0 = -1;
394 param->i_deblocking_filter_beta = -1;
395 param->analyse.f_psy_trellis = 0.2;
396 param->rc.f_aq_strength = 1.3;
397 if( param->analyse.inter & X264_ANALYSE_PSUB16x16 )
398 param->analyse.inter |= X264_ANALYSE_PSUB8x8;
402 x264_log( NULL, X264_LOG_ERROR, "invalid tune '%s'\n", s );
409 x264_log( NULL, X264_LOG_WARNING, "only 1 psy tuning can be used: ignoring tune %s\n", s );
411 s = strtok( NULL, ",./-+" );
417 int x264_param_default_preset( x264_param_t *param, const char *preset, const char *tune )
419 x264_param_default( param );
421 if( preset && x264_param_apply_preset( param, preset ) < 0 )
423 if( tune && x264_param_apply_tune( param, tune ) < 0 )
428 void x264_param_apply_fastfirstpass( x264_param_t *param )
430 /* Set faster options in case of turbo firstpass. */
431 if( param->rc.b_stat_write && !param->rc.b_stat_read )
433 param->i_frame_reference = 1;
434 param->analyse.b_transform_8x8 = 0;
435 param->analyse.inter = 0;
436 param->analyse.i_me_method = X264_ME_DIA;
437 param->analyse.i_subpel_refine = X264_MIN( 2, param->analyse.i_subpel_refine );
438 param->analyse.i_trellis = 0;
439 param->analyse.b_fast_pskip = 1;
443 static int profile_string_to_int( const char *str )
445 if( !strcasecmp( str, "baseline" ) )
446 return PROFILE_BASELINE;
447 if( !strcasecmp( str, "main" ) )
449 if( !strcasecmp( str, "high" ) )
451 if( !strcasecmp( str, "high10" ) )
452 return PROFILE_HIGH10;
453 if( !strcasecmp( str, "high422" ) )
454 return PROFILE_HIGH422;
455 if( !strcasecmp( str, "high444" ) )
456 return PROFILE_HIGH444_PREDICTIVE;
460 int x264_param_apply_profile( x264_param_t *param, const char *profile )
465 int p = profile_string_to_int( profile );
468 x264_log( NULL, X264_LOG_ERROR, "invalid profile: %s\n", profile );
471 if( p < PROFILE_HIGH444_PREDICTIVE && ((param->rc.i_rc_method == X264_RC_CQP && param->rc.i_qp_constant <= 0) ||
472 (param->rc.i_rc_method == X264_RC_CRF && (int)(param->rc.f_rf_constant + QP_BD_OFFSET) <= 0)) )
474 x264_log( NULL, X264_LOG_ERROR, "%s profile doesn't support lossless\n", profile );
477 if( p < PROFILE_HIGH444_PREDICTIVE && (param->i_csp & X264_CSP_MASK) >= X264_CSP_I444 )
479 x264_log( NULL, X264_LOG_ERROR, "%s profile doesn't support 4:4:4\n", profile );
482 if( p < PROFILE_HIGH422 && (param->i_csp & X264_CSP_MASK) >= X264_CSP_I422 )
484 x264_log( NULL, X264_LOG_ERROR, "%s profile doesn't support 4:2:2\n", profile );
487 if( p < PROFILE_HIGH10 && BIT_DEPTH > 8 )
489 x264_log( NULL, X264_LOG_ERROR, "%s profile doesn't support a bit depth of %d\n", profile, BIT_DEPTH );
493 if( p == PROFILE_BASELINE )
495 param->analyse.b_transform_8x8 = 0;
497 param->i_cqm_preset = X264_CQM_FLAT;
498 param->psz_cqm_file = NULL;
500 param->analyse.i_weighted_pred = X264_WEIGHTP_NONE;
501 if( param->b_interlaced )
503 x264_log( NULL, X264_LOG_ERROR, "baseline profile doesn't support interlacing\n" );
506 if( param->b_fake_interlaced )
508 x264_log( NULL, X264_LOG_ERROR, "baseline profile doesn't support fake interlacing\n" );
512 else if( p == PROFILE_MAIN )
514 param->analyse.b_transform_8x8 = 0;
515 param->i_cqm_preset = X264_CQM_FLAT;
516 param->psz_cqm_file = NULL;
521 static int parse_enum( const char *arg, const char * const *names, int *dst )
523 for( int i = 0; names[i]; i++ )
524 if( !strcasecmp( arg, names[i] ) )
532 static int parse_cqm( const char *str, uint8_t *cqm, int length )
537 if( !sscanf( str, "%d", &coef ) || coef < 1 || coef > 255 )
540 } while( i < length && (str = strchr( str, ',' )) && str++ );
541 return (i == length) ? 0 : -1;
544 static int x264_atobool( const char *str, int *b_error )
546 if( !strcmp(str, "1") ||
547 !strcasecmp(str, "true") ||
548 !strcasecmp(str, "yes") )
550 if( !strcmp(str, "0") ||
551 !strcasecmp(str, "false") ||
552 !strcasecmp(str, "no") )
558 static int x264_atoi( const char *str, int *b_error )
561 int v = strtol( str, &end, 0 );
562 if( end == str || *end != '\0' )
567 static double x264_atof( const char *str, int *b_error )
570 double v = strtod( str, &end );
571 if( end == str || *end != '\0' )
576 #define atobool(str) ( name_was_bool = 1, x264_atobool( str, &b_error ) )
579 #define atoi(str) x264_atoi( str, &b_error )
580 #define atof(str) x264_atof( str, &b_error )
582 int x264_param_parse( x264_param_t *p, const char *name, const char *value )
584 char *name_buf = NULL;
586 int errortype = X264_PARAM_BAD_VALUE;
588 int value_was_null = !value;
591 return X264_PARAM_BAD_NAME;
595 if( value[0] == '=' )
598 if( strchr( name, '_' ) ) // s/_/-/g
601 name_buf = strdup(name);
603 return X264_PARAM_BAD_NAME;
604 while( (c = strchr( name_buf, '_' )) )
609 if( !strncmp( name, "no", 2 ) )
614 value = atobool(value) ? "false" : "true";
618 #define OPT(STR) else if( !strcmp( name, STR ) )
619 #define OPT2(STR0, STR1) else if( !strcmp( name, STR0 ) || !strcmp( name, STR1 ) )
623 p->cpu = isdigit(value[0]) ? atoi(value) :
624 !strcasecmp(value, "auto") || atobool(value) ? x264_cpu_detect() : 0;
627 char *buf = strdup( value );
630 char *tok, UNUSED *saveptr=NULL, *init;
633 for( init=buf; (tok=strtok_r(init, ",", &saveptr)); init=NULL )
636 while( x264_cpu_names[i].flags && strcasecmp(tok, x264_cpu_names[i].name) )
638 p->cpu |= x264_cpu_names[i].flags;
639 if( !x264_cpu_names[i].flags )
643 if( (p->cpu&X264_CPU_SSSE3) && !(p->cpu&X264_CPU_SSE2_IS_SLOW) )
644 p->cpu |= X264_CPU_SSE2_IS_FAST;
650 if( !strcasecmp(value, "auto") )
651 p->i_threads = X264_THREADS_AUTO;
653 p->i_threads = atoi(value);
655 OPT("lookahead-threads")
657 if( !strcasecmp(value, "auto") )
658 p->i_lookahead_threads = X264_THREADS_AUTO;
660 p->i_lookahead_threads = atoi(value);
662 OPT("sliced-threads")
663 p->b_sliced_threads = atobool(value);
664 OPT("sync-lookahead")
666 if( !strcasecmp(value, "auto") )
667 p->i_sync_lookahead = X264_SYNC_LOOKAHEAD_AUTO;
669 p->i_sync_lookahead = atoi(value);
671 OPT2("deterministic", "n-deterministic")
672 p->b_deterministic = atobool(value);
673 OPT("cpu-independent")
674 p->b_cpu_independent = atobool(value);
675 OPT2("level", "level-idc")
677 if( !strcmp(value, "1b") )
679 else if( atof(value) < 6 )
680 p->i_level_idc = (int)(10*atof(value)+.5);
682 p->i_level_idc = atoi(value);
685 p->b_bluray_compat = atobool(value);
686 OPT("avcintra-class")
687 p->i_avcintra_class = atoi(value);
690 b_error = ( 2 != sscanf( value, "%d:%d", &p->vui.i_sar_width, &p->vui.i_sar_height ) &&
691 2 != sscanf( value, "%d/%d", &p->vui.i_sar_width, &p->vui.i_sar_height ) );
694 b_error |= parse_enum( value, x264_overscan_names, &p->vui.i_overscan );
696 b_error |= parse_enum( value, x264_vidformat_names, &p->vui.i_vidformat );
698 b_error |= parse_enum( value, x264_fullrange_names, &p->vui.b_fullrange );
700 b_error |= parse_enum( value, x264_colorprim_names, &p->vui.i_colorprim );
702 b_error |= parse_enum( value, x264_transfer_names, &p->vui.i_transfer );
704 b_error |= parse_enum( value, x264_colmatrix_names, &p->vui.i_colmatrix );
707 p->vui.i_chroma_loc = atoi(value);
708 b_error = ( p->vui.i_chroma_loc < 0 || p->vui.i_chroma_loc > 5 );
712 if( sscanf( value, "%u/%u", &p->i_fps_num, &p->i_fps_den ) != 2 )
714 double fps = atof(value);
715 if( fps > 0.0 && fps <= INT_MAX/1000.0 )
717 p->i_fps_num = (int)(fps * 1000.0 + .5);
722 p->i_fps_num = atoi(value);
727 OPT2("ref", "frameref")
728 p->i_frame_reference = atoi(value);
730 p->i_dpb_size = atoi(value);
733 if( strstr( value, "infinite" ) )
734 p->i_keyint_max = X264_KEYINT_MAX_INFINITE;
736 p->i_keyint_max = atoi(value);
738 OPT2("min-keyint", "keyint-min")
740 p->i_keyint_min = atoi(value);
741 if( p->i_keyint_max < p->i_keyint_min )
742 p->i_keyint_max = p->i_keyint_min;
746 p->i_scenecut_threshold = atobool(value);
747 if( b_error || p->i_scenecut_threshold )
750 p->i_scenecut_threshold = atoi(value);
754 p->b_intra_refresh = atobool(value);
756 p->i_bframe = atoi(value);
759 p->i_bframe_adaptive = atobool(value);
763 p->i_bframe_adaptive = atoi(value);
767 p->i_bframe_bias = atoi(value);
770 b_error |= parse_enum( value, x264_b_pyramid_names, &p->i_bframe_pyramid );
774 p->i_bframe_pyramid = atoi(value);
778 p->b_open_gop = atobool(value);
780 p->b_deblocking_filter = !atobool(value);
781 OPT2("filter", "deblock")
783 if( 2 == sscanf( value, "%d:%d", &p->i_deblocking_filter_alphac0, &p->i_deblocking_filter_beta ) ||
784 2 == sscanf( value, "%d,%d", &p->i_deblocking_filter_alphac0, &p->i_deblocking_filter_beta ) )
786 p->b_deblocking_filter = 1;
788 else if( sscanf( value, "%d", &p->i_deblocking_filter_alphac0 ) )
790 p->b_deblocking_filter = 1;
791 p->i_deblocking_filter_beta = p->i_deblocking_filter_alphac0;
794 p->b_deblocking_filter = atobool(value);
796 OPT("slice-max-size")
797 p->i_slice_max_size = atoi(value);
799 p->i_slice_max_mbs = atoi(value);
801 p->i_slice_min_mbs = atoi(value);
803 p->i_slice_count = atoi(value);
805 p->i_slice_count_max = atoi(value);
807 p->b_cabac = atobool(value);
809 p->i_cabac_init_idc = atoi(value);
811 p->b_interlaced = atobool(value);
813 p->b_interlaced = p->b_tff = atobool(value);
816 p->b_interlaced = atobool(value);
817 p->b_tff = !p->b_interlaced;
819 OPT("constrained-intra")
820 p->b_constrained_intra = atobool(value);
823 if( strstr( value, "flat" ) )
824 p->i_cqm_preset = X264_CQM_FLAT;
825 else if( strstr( value, "jvt" ) )
826 p->i_cqm_preset = X264_CQM_JVT;
828 p->psz_cqm_file = strdup(value);
831 p->psz_cqm_file = strdup(value);
834 p->i_cqm_preset = X264_CQM_CUSTOM;
835 b_error |= parse_cqm( value, p->cqm_4iy, 16 );
836 b_error |= parse_cqm( value, p->cqm_4py, 16 );
837 b_error |= parse_cqm( value, p->cqm_4ic, 16 );
838 b_error |= parse_cqm( value, p->cqm_4pc, 16 );
842 p->i_cqm_preset = X264_CQM_CUSTOM;
843 b_error |= parse_cqm( value, p->cqm_8iy, 64 );
844 b_error |= parse_cqm( value, p->cqm_8py, 64 );
845 b_error |= parse_cqm( value, p->cqm_8ic, 64 );
846 b_error |= parse_cqm( value, p->cqm_8pc, 64 );
850 p->i_cqm_preset = X264_CQM_CUSTOM;
851 b_error |= parse_cqm( value, p->cqm_4iy, 16 );
852 b_error |= parse_cqm( value, p->cqm_4ic, 16 );
856 p->i_cqm_preset = X264_CQM_CUSTOM;
857 b_error |= parse_cqm( value, p->cqm_4py, 16 );
858 b_error |= parse_cqm( value, p->cqm_4pc, 16 );
862 p->i_cqm_preset = X264_CQM_CUSTOM;
863 b_error |= parse_cqm( value, p->cqm_4iy, 16 );
867 p->i_cqm_preset = X264_CQM_CUSTOM;
868 b_error |= parse_cqm( value, p->cqm_4ic, 16 );
872 p->i_cqm_preset = X264_CQM_CUSTOM;
873 b_error |= parse_cqm( value, p->cqm_4py, 16 );
877 p->i_cqm_preset = X264_CQM_CUSTOM;
878 b_error |= parse_cqm( value, p->cqm_4pc, 16 );
882 p->i_cqm_preset = X264_CQM_CUSTOM;
883 b_error |= parse_cqm( value, p->cqm_8iy, 64 );
884 b_error |= parse_cqm( value, p->cqm_8ic, 64 );
888 p->i_cqm_preset = X264_CQM_CUSTOM;
889 b_error |= parse_cqm( value, p->cqm_8py, 64 );
890 b_error |= parse_cqm( value, p->cqm_8pc, 64 );
893 p->i_log_level = atoi(value);
895 p->psz_dump_yuv = strdup(value);
896 OPT2("analyse", "partitions")
898 p->analyse.inter = 0;
899 if( strstr( value, "none" ) ) p->analyse.inter = 0;
900 if( strstr( value, "all" ) ) p->analyse.inter = ~0;
902 if( strstr( value, "i4x4" ) ) p->analyse.inter |= X264_ANALYSE_I4x4;
903 if( strstr( value, "i8x8" ) ) p->analyse.inter |= X264_ANALYSE_I8x8;
904 if( strstr( value, "p8x8" ) ) p->analyse.inter |= X264_ANALYSE_PSUB16x16;
905 if( strstr( value, "p4x4" ) ) p->analyse.inter |= X264_ANALYSE_PSUB8x8;
906 if( strstr( value, "b8x8" ) ) p->analyse.inter |= X264_ANALYSE_BSUB16x16;
909 p->analyse.b_transform_8x8 = atobool(value);
910 OPT2("weightb", "weight-b")
911 p->analyse.b_weighted_bipred = atobool(value);
913 p->analyse.i_weighted_pred = atoi(value);
914 OPT2("direct", "direct-pred")
915 b_error |= parse_enum( value, x264_direct_pred_names, &p->analyse.i_direct_mv_pred );
916 OPT("chroma-qp-offset")
917 p->analyse.i_chroma_qp_offset = atoi(value);
919 b_error |= parse_enum( value, x264_motion_est_names, &p->analyse.i_me_method );
920 OPT2("merange", "me-range")
921 p->analyse.i_me_range = atoi(value);
922 OPT2("mvrange", "mv-range")
923 p->analyse.i_mv_range = atoi(value);
924 OPT2("mvrange-thread", "mv-range-thread")
925 p->analyse.i_mv_range_thread = atoi(value);
926 OPT2("subme", "subq")
927 p->analyse.i_subpel_refine = atoi(value);
930 if( 2 == sscanf( value, "%f:%f", &p->analyse.f_psy_rd, &p->analyse.f_psy_trellis ) ||
931 2 == sscanf( value, "%f,%f", &p->analyse.f_psy_rd, &p->analyse.f_psy_trellis ) ||
932 2 == sscanf( value, "%f|%f", &p->analyse.f_psy_rd, &p->analyse.f_psy_trellis ))
934 else if( sscanf( value, "%f", &p->analyse.f_psy_rd ) )
936 p->analyse.f_psy_trellis = 0;
940 p->analyse.f_psy_rd = 0;
941 p->analyse.f_psy_trellis = 0;
945 p->analyse.b_psy = atobool(value);
947 p->analyse.b_chroma_me = atobool(value);
949 p->analyse.b_mixed_references = atobool(value);
951 p->analyse.i_trellis = atoi(value);
953 p->analyse.b_fast_pskip = atobool(value);
955 p->analyse.b_dct_decimate = atobool(value);
956 OPT("deadzone-inter")
957 p->analyse.i_luma_deadzone[0] = atoi(value);
958 OPT("deadzone-intra")
959 p->analyse.i_luma_deadzone[1] = atoi(value);
961 p->analyse.i_noise_reduction = atoi(value);
964 p->rc.i_bitrate = atoi(value);
965 p->rc.i_rc_method = X264_RC_ABR;
967 OPT2("qp", "qp_constant")
969 p->rc.i_qp_constant = atoi(value);
970 p->rc.i_rc_method = X264_RC_CQP;
974 p->rc.f_rf_constant = atof(value);
975 p->rc.i_rc_method = X264_RC_CRF;
978 p->rc.f_rf_constant_max = atof(value);
980 p->rc.i_lookahead = atoi(value);
981 OPT2("qpmin", "qp-min")
982 p->rc.i_qp_min = atoi(value);
983 OPT2("qpmax", "qp-max")
984 p->rc.i_qp_max = atoi(value);
985 OPT2("qpstep", "qp-step")
986 p->rc.i_qp_step = atoi(value);
988 p->rc.f_rate_tolerance = !strncmp("inf", value, 3) ? 1e9 : atof(value);
990 p->rc.i_vbv_max_bitrate = atoi(value);
992 p->rc.i_vbv_buffer_size = atoi(value);
994 p->rc.f_vbv_buffer_init = atof(value);
995 OPT2("ipratio", "ip-factor")
996 p->rc.f_ip_factor = atof(value);
997 OPT2("pbratio", "pb-factor")
998 p->rc.f_pb_factor = atof(value);
1000 p->rc.i_aq_mode = atoi(value);
1002 p->rc.f_aq_strength = atof(value);
1005 int pass = x264_clip3( atoi(value), 0, 3 );
1006 p->rc.b_stat_write = pass & 1;
1007 p->rc.b_stat_read = pass & 2;
1011 p->rc.psz_stat_in = strdup(value);
1012 p->rc.psz_stat_out = strdup(value);
1015 p->rc.f_qcompress = atof(value);
1017 p->rc.b_mb_tree = atobool(value);
1019 p->rc.f_qblur = atof(value);
1020 OPT2("cplxblur", "cplx-blur")
1021 p->rc.f_complexity_blur = atof(value);
1023 p->rc.psz_zones = strdup(value);
1025 p->sc.f_speed = atof(value);
1026 OPT("speed-bufsize")
1027 p->sc.i_buffer_size = atoi(value);
1029 p->sc.f_buffer_init = atof(value);
1030 OPT("speed-alt-timer")
1031 p->sc.b_alt_timer = atobool(value);
1033 b_error |= sscanf( value, "%u,%u,%u,%u", &p->crop_rect.i_left, &p->crop_rect.i_top,
1034 &p->crop_rect.i_right, &p->crop_rect.i_bottom ) != 4;
1036 p->analyse.b_psnr = atobool(value);
1038 p->analyse.b_ssim = atobool(value);
1040 p->b_aud = atobool(value);
1042 p->i_sps_id = atoi(value);
1043 OPT("global-header")
1044 p->b_repeat_headers = !atobool(value);
1045 OPT("repeat-headers")
1046 p->b_repeat_headers = atobool(value);
1048 p->b_annexb = atobool(value);
1050 p->b_vfr_input = !atobool(value);
1052 b_error |= parse_enum( value, x264_nal_hrd_names, &p->i_nal_hrd );
1054 p->rc.b_filler = atobool(value);
1056 p->b_pic_struct = atobool(value);
1057 OPT("fake-interlaced")
1058 p->b_fake_interlaced = atobool(value);
1059 OPT("frame-packing")
1060 p->i_frame_packing = atoi(value);
1062 p->b_stitchable = atobool(value);
1064 p->b_opencl = atobool( value );
1066 p->psz_clbin_file = strdup( value );
1067 OPT("opencl-device")
1068 p->i_opencl_device = atoi( value );
1072 errortype = X264_PARAM_BAD_NAME;
1083 b_error |= value_was_null && !name_was_bool;
1084 return b_error ? errortype : 0;
1087 /****************************************************************************
1089 ****************************************************************************/
1090 void x264_log( x264_t *h, int i_level, const char *psz_fmt, ... )
1092 if( !h || i_level <= h->param.i_log_level )
1095 va_start( arg, psz_fmt );
1097 x264_log_default( NULL, i_level, psz_fmt, arg );
1099 h->param.pf_log( h->param.p_log_private, i_level, psz_fmt, arg );
1104 static void x264_log_default( void *p_unused, int i_level, const char *psz_fmt, va_list arg )
1109 case X264_LOG_ERROR:
1110 psz_prefix = "error";
1112 case X264_LOG_WARNING:
1113 psz_prefix = "warning";
1116 psz_prefix = "info";
1118 case X264_LOG_DEBUG:
1119 psz_prefix = "debug";
1122 psz_prefix = "unknown";
1125 fprintf( stderr, "x264 [%s]: ", psz_prefix );
1126 x264_vfprintf( stderr, psz_fmt, arg );
1129 /****************************************************************************
1130 * x264_picture_init:
1131 ****************************************************************************/
1132 void x264_picture_init( x264_picture_t *pic )
1134 memset( pic, 0, sizeof( x264_picture_t ) );
1135 pic->i_type = X264_TYPE_AUTO;
1136 pic->i_qpplus1 = X264_QP_AUTO;
1137 pic->i_pic_struct = PIC_STRUCT_AUTO;
1140 /****************************************************************************
1141 * x264_picture_alloc:
1142 ****************************************************************************/
1143 int x264_picture_alloc( x264_picture_t *pic, int i_csp, int i_width, int i_height )
1152 static const x264_csp_tab_t x264_csp_tab[] =
1154 [X264_CSP_I420] = { 3, { 256*1, 256/2, 256/2 }, { 256*1, 256/2, 256/2 } },
1155 [X264_CSP_YV12] = { 3, { 256*1, 256/2, 256/2 }, { 256*1, 256/2, 256/2 } },
1156 [X264_CSP_NV12] = { 2, { 256*1, 256*1 }, { 256*1, 256/2 }, },
1157 [X264_CSP_NV21] = { 2, { 256*1, 256*1 }, { 256*1, 256/2 }, },
1158 [X264_CSP_I422] = { 3, { 256*1, 256/2, 256/2 }, { 256*1, 256*1, 256*1 } },
1159 [X264_CSP_YV16] = { 3, { 256*1, 256/2, 256/2 }, { 256*1, 256*1, 256*1 } },
1160 [X264_CSP_NV16] = { 2, { 256*1, 256*1 }, { 256*1, 256*1 }, },
1161 [X264_CSP_I444] = { 3, { 256*1, 256*1, 256*1 }, { 256*1, 256*1, 256*1 } },
1162 [X264_CSP_YV24] = { 3, { 256*1, 256*1, 256*1 }, { 256*1, 256*1, 256*1 } },
1163 [X264_CSP_BGR] = { 1, { 256*3 }, { 256*1 }, },
1164 [X264_CSP_BGRA] = { 1, { 256*4 }, { 256*1 }, },
1165 [X264_CSP_RGB] = { 1, { 256*3 }, { 256*1 }, },
1168 int csp = i_csp & X264_CSP_MASK;
1169 if( csp <= X264_CSP_NONE || csp >= X264_CSP_MAX || csp == X264_CSP_V210 )
1171 x264_picture_init( pic );
1172 pic->img.i_csp = i_csp;
1173 pic->img.i_plane = x264_csp_tab[csp].planes;
1174 int depth_factor = i_csp & X264_CSP_HIGH_DEPTH ? 2 : 1;
1175 int plane_offset[3] = {0};
1177 for( int i = 0; i < pic->img.i_plane; i++ )
1179 int stride = (((int64_t)i_width * x264_csp_tab[csp].width_fix8[i]) >> 8) * depth_factor;
1180 int plane_size = (((int64_t)i_height * x264_csp_tab[csp].height_fix8[i]) >> 8) * stride;
1181 pic->img.i_stride[i] = stride;
1182 plane_offset[i] = frame_size;
1183 frame_size += plane_size;
1185 pic->img.plane[0] = x264_malloc( frame_size );
1186 if( !pic->img.plane[0] )
1188 for( int i = 1; i < pic->img.i_plane; i++ )
1189 pic->img.plane[i] = pic->img.plane[0] + plane_offset[i];
1193 /****************************************************************************
1194 * x264_picture_clean:
1195 ****************************************************************************/
1196 void x264_picture_clean( x264_picture_t *pic )
1198 x264_free( pic->img.plane[0] );
1200 /* just to be safe */
1201 memset( pic, 0, sizeof( x264_picture_t ) );
1204 /****************************************************************************
1206 ****************************************************************************/
1207 void *x264_malloc( int i_size )
1209 uint8_t *align_buf = NULL;
1212 #define HUGE_PAGE_SIZE 2*1024*1024
1213 #define HUGE_PAGE_THRESHOLD HUGE_PAGE_SIZE*7/8 /* FIXME: Is this optimal? */
1214 /* Attempt to allocate huge pages to reduce TLB misses. */
1215 if( i_size >= HUGE_PAGE_THRESHOLD )
1217 align_buf = memalign( HUGE_PAGE_SIZE, i_size );
1220 /* Round up to the next huge page boundary if we are close enough. */
1221 size_t madv_size = (i_size + HUGE_PAGE_SIZE - HUGE_PAGE_THRESHOLD) & ~(HUGE_PAGE_SIZE-1);
1222 madvise( align_buf, madv_size, MADV_HUGEPAGE );
1226 #undef HUGE_PAGE_SIZE
1227 #undef HUGE_PAGE_THRESHOLD
1229 align_buf = memalign( NATIVE_ALIGN, i_size );
1231 uint8_t *buf = malloc( i_size + (NATIVE_ALIGN-1) + sizeof(void **) );
1234 align_buf = buf + (NATIVE_ALIGN-1) + sizeof(void **);
1235 align_buf -= (intptr_t) align_buf & (NATIVE_ALIGN-1);
1236 *( (void **) ( align_buf - sizeof(void **) ) ) = buf;
1240 x264_log( NULL, X264_LOG_ERROR, "malloc of size %d failed\n", i_size );
1244 /****************************************************************************
1246 ****************************************************************************/
1247 void x264_free( void *p )
1254 free( *( ( ( void **) p ) - 1 ) );
1259 /****************************************************************************
1260 * x264_reduce_fraction:
1261 ****************************************************************************/
1262 #define REDUCE_FRACTION( name, type )\
1263 void name( type *n, type *d )\
1281 REDUCE_FRACTION( x264_reduce_fraction , uint32_t )
1282 REDUCE_FRACTION( x264_reduce_fraction64, uint64_t )
1284 /****************************************************************************
1286 ****************************************************************************/
1287 char *x264_slurp_file( const char *filename )
1292 FILE *fh = x264_fopen( filename, "rb" );
1296 b_error |= fseek( fh, 0, SEEK_END ) < 0;
1297 b_error |= ( i_size = ftell( fh ) ) <= 0;
1298 if( WORD_SIZE == 4 )
1299 b_error |= i_size > INT32_MAX;
1300 b_error |= fseek( fh, 0, SEEK_SET ) < 0;
1304 buf = x264_malloc( i_size+2 );
1308 b_error |= fread( buf, 1, i_size, fh ) != i_size;
1316 if( buf[i_size-1] != '\n' )
1317 buf[i_size++] = '\n';
1326 /****************************************************************************
1327 * x264_param2string:
1328 ****************************************************************************/
1329 char *x264_param2string( x264_param_t *p, int b_res )
1333 if( p->rc.psz_zones )
1334 len += strlen(p->rc.psz_zones);
1335 buf = s = x264_malloc( len );
1341 s += sprintf( s, "%dx%d ", p->i_width, p->i_height );
1342 s += sprintf( s, "fps=%u/%u ", p->i_fps_num, p->i_fps_den );
1343 s += sprintf( s, "timebase=%u/%u ", p->i_timebase_num, p->i_timebase_den );
1344 s += sprintf( s, "bitdepth=%d ", BIT_DEPTH );
1348 s += sprintf( s, "opencl=%d ", p->b_opencl );
1350 // FIXME speedcontrol stuff
1352 s += sprintf( s, "cabac=%d", p->b_cabac );
1353 s += sprintf( s, " ref=%d", p->i_frame_reference );
1354 s += sprintf( s, " deblock=%d:%d:%d", p->b_deblocking_filter,
1355 p->i_deblocking_filter_alphac0, p->i_deblocking_filter_beta );
1356 s += sprintf( s, " analyse=%#x:%#x", p->analyse.intra, p->analyse.inter );
1357 s += sprintf( s, " me=%s", x264_motion_est_names[ p->analyse.i_me_method ] );
1358 s += sprintf( s, " subme=%d", p->analyse.i_subpel_refine );
1359 s += sprintf( s, " psy=%d", p->analyse.b_psy );
1360 if( p->analyse.b_psy )
1361 s += sprintf( s, " psy_rd=%.2f:%.2f", p->analyse.f_psy_rd, p->analyse.f_psy_trellis );
1362 s += sprintf( s, " mixed_ref=%d", p->analyse.b_mixed_references );
1363 s += sprintf( s, " me_range=%d", p->analyse.i_me_range );
1364 s += sprintf( s, " chroma_me=%d", p->analyse.b_chroma_me );
1365 s += sprintf( s, " trellis=%d", p->analyse.i_trellis );
1366 s += sprintf( s, " 8x8dct=%d", p->analyse.b_transform_8x8 );
1367 s += sprintf( s, " cqm=%d", p->i_cqm_preset );
1368 s += sprintf( s, " deadzone=%d,%d", p->analyse.i_luma_deadzone[0], p->analyse.i_luma_deadzone[1] );
1369 s += sprintf( s, " fast_pskip=%d", p->analyse.b_fast_pskip );
1370 s += sprintf( s, " chroma_qp_offset=%d", p->analyse.i_chroma_qp_offset );
1371 s += sprintf( s, " threads=%d", p->i_threads );
1372 s += sprintf( s, " lookahead_threads=%d", p->i_lookahead_threads );
1373 s += sprintf( s, " sliced_threads=%d", p->b_sliced_threads );
1374 if( p->i_slice_count )
1375 s += sprintf( s, " slices=%d", p->i_slice_count );
1376 if( p->i_slice_count_max )
1377 s += sprintf( s, " slices_max=%d", p->i_slice_count_max );
1378 if( p->i_slice_max_size )
1379 s += sprintf( s, " slice_max_size=%d", p->i_slice_max_size );
1380 if( p->i_slice_max_mbs )
1381 s += sprintf( s, " slice_max_mbs=%d", p->i_slice_max_mbs );
1382 if( p->i_slice_min_mbs )
1383 s += sprintf( s, " slice_min_mbs=%d", p->i_slice_min_mbs );
1384 s += sprintf( s, " nr=%d", p->analyse.i_noise_reduction );
1385 s += sprintf( s, " decimate=%d", p->analyse.b_dct_decimate );
1386 s += sprintf( s, " interlaced=%s", p->b_interlaced ? p->b_tff ? "tff" : "bff" : p->b_fake_interlaced ? "fake" : "0" );
1387 s += sprintf( s, " bluray_compat=%d", p->b_bluray_compat );
1388 if( p->b_stitchable )
1389 s += sprintf( s, " stitchable=%d", p->b_stitchable );
1391 s += sprintf( s, " constrained_intra=%d", p->b_constrained_intra );
1393 s += sprintf( s, " bframes=%d", p->i_bframe );
1396 s += sprintf( s, " b_pyramid=%d b_adapt=%d b_bias=%d direct=%d weightb=%d open_gop=%d",
1397 p->i_bframe_pyramid, p->i_bframe_adaptive, p->i_bframe_bias,
1398 p->analyse.i_direct_mv_pred, p->analyse.b_weighted_bipred, p->b_open_gop );
1400 s += sprintf( s, " weightp=%d", p->analyse.i_weighted_pred > 0 ? p->analyse.i_weighted_pred : 0 );
1402 if( p->i_keyint_max == X264_KEYINT_MAX_INFINITE )
1403 s += sprintf( s, " keyint=infinite" );
1405 s += sprintf( s, " keyint=%d", p->i_keyint_max );
1406 s += sprintf( s, " keyint_min=%d scenecut=%d intra_refresh=%d",
1407 p->i_keyint_min, p->i_scenecut_threshold, p->b_intra_refresh );
1409 if( p->rc.b_mb_tree || p->rc.i_vbv_buffer_size )
1410 s += sprintf( s, " rc_lookahead=%d", p->rc.i_lookahead );
1412 s += sprintf( s, " rc=%s mbtree=%d", p->rc.i_rc_method == X264_RC_ABR ?
1413 ( p->rc.b_stat_read ? "2pass" : p->rc.i_vbv_max_bitrate == p->rc.i_bitrate ? "cbr" : "abr" )
1414 : p->rc.i_rc_method == X264_RC_CRF ? "crf" : "cqp", p->rc.b_mb_tree );
1415 if( p->rc.i_rc_method == X264_RC_ABR || p->rc.i_rc_method == X264_RC_CRF )
1417 if( p->rc.i_rc_method == X264_RC_CRF )
1418 s += sprintf( s, " crf=%.1f", p->rc.f_rf_constant );
1420 s += sprintf( s, " bitrate=%d ratetol=%.1f",
1421 p->rc.i_bitrate, p->rc.f_rate_tolerance );
1422 s += sprintf( s, " qcomp=%.2f qpmin=%d qpmax=%d qpstep=%d",
1423 p->rc.f_qcompress, p->rc.i_qp_min, p->rc.i_qp_max, p->rc.i_qp_step );
1424 if( p->rc.b_stat_read )
1425 s += sprintf( s, " cplxblur=%.1f qblur=%.1f",
1426 p->rc.f_complexity_blur, p->rc.f_qblur );
1427 if( p->rc.i_vbv_buffer_size )
1429 s += sprintf( s, " vbv_maxrate=%d vbv_bufsize=%d",
1430 p->rc.i_vbv_max_bitrate, p->rc.i_vbv_buffer_size );
1431 if( p->rc.i_rc_method == X264_RC_CRF )
1432 s += sprintf( s, " crf_max=%.1f", p->rc.f_rf_constant_max );
1435 else if( p->rc.i_rc_method == X264_RC_CQP )
1436 s += sprintf( s, " qp=%d", p->rc.i_qp_constant );
1438 if( p->rc.i_vbv_buffer_size )
1439 s += sprintf( s, " nal_hrd=%s filler=%d", x264_nal_hrd_names[p->i_nal_hrd], p->rc.b_filler );
1440 if( p->crop_rect.i_left | p->crop_rect.i_top | p->crop_rect.i_right | p->crop_rect.i_bottom )
1441 s += sprintf( s, " crop_rect=%u,%u,%u,%u", p->crop_rect.i_left, p->crop_rect.i_top,
1442 p->crop_rect.i_right, p->crop_rect.i_bottom );
1443 if( p->i_frame_packing >= 0 )
1444 s += sprintf( s, " frame-packing=%d", p->i_frame_packing );
1446 if( !(p->rc.i_rc_method == X264_RC_CQP && p->rc.i_qp_constant == 0) )
1448 s += sprintf( s, " ip_ratio=%.2f", p->rc.f_ip_factor );
1449 if( p->i_bframe && !p->rc.b_mb_tree )
1450 s += sprintf( s, " pb_ratio=%.2f", p->rc.f_pb_factor );
1451 s += sprintf( s, " aq=%d", p->rc.i_aq_mode );
1452 if( p->rc.i_aq_mode )
1453 s += sprintf( s, ":%.2f", p->rc.f_aq_strength );
1454 if( p->rc.psz_zones )
1455 s += sprintf( s, " zones=%s", p->rc.psz_zones );
1456 else if( p->rc.i_zones )
1457 s += sprintf( s, " zones" );