1 /*****************************************************************************
2 * common.c: h264 library
3 *****************************************************************************
4 * Copyright (C) 2003-2008 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.
22 *****************************************************************************/
33 static void x264_log_default( void *, int, const char *, va_list );
35 /****************************************************************************
37 ****************************************************************************/
38 void x264_param_default( x264_param_t *param )
41 memset( param, 0, sizeof( x264_param_t ) );
44 param->cpu = x264_cpu_detect();
45 param->i_threads = X264_THREADS_AUTO;
46 param->b_deterministic = 1;
47 param->i_sync_lookahead = X264_SYNC_LOOKAHEAD_AUTO;
49 /* Video properties */
50 param->i_csp = X264_CSP_I420;
53 param->vui.i_sar_width = 0;
54 param->vui.i_sar_height= 0;
55 param->vui.i_overscan = 0; /* undef */
56 param->vui.i_vidformat = 5; /* undef */
57 param->vui.b_fullrange = 0; /* off */
58 param->vui.i_colorprim = 2; /* undef */
59 param->vui.i_transfer = 2; /* undef */
60 param->vui.i_colmatrix = 2; /* undef */
61 param->vui.i_chroma_loc= 0; /* left center */
62 param->i_fps_num = 25;
64 param->i_level_idc = -1;
65 param->i_slice_max_size = 0;
66 param->i_slice_max_mbs = 0;
67 param->i_slice_count = 0;
69 /* Encoder parameters */
70 param->i_frame_reference = 3;
71 param->i_keyint_max = 250;
72 param->i_keyint_min = X264_KEYINT_MIN_AUTO;
74 param->i_scenecut_threshold = 40;
75 param->i_bframe_adaptive = X264_B_ADAPT_FAST;
76 param->i_bframe_bias = 0;
77 param->i_bframe_pyramid = X264_B_PYRAMID_NORMAL;
78 param->b_interlaced = 0;
79 param->b_constrained_intra = 0;
81 param->b_deblocking_filter = 1;
82 param->i_deblocking_filter_alphac0 = 0;
83 param->i_deblocking_filter_beta = 0;
86 param->i_cabac_init_idc = 0;
88 param->rc.i_rc_method = X264_RC_CRF;
89 param->rc.i_bitrate = 0;
90 param->rc.f_rate_tolerance = 1.0;
91 param->rc.i_vbv_max_bitrate = 0;
92 param->rc.i_vbv_buffer_size = 0;
93 param->rc.f_vbv_buffer_init = 0.9;
94 param->rc.i_qp_constant = 23;
95 param->rc.f_rf_constant = 23;
96 param->rc.i_qp_min = 10;
97 param->rc.i_qp_max = 51;
98 param->rc.i_qp_step = 4;
99 param->rc.f_ip_factor = 1.4;
100 param->rc.f_pb_factor = 1.3;
101 param->rc.i_aq_mode = X264_AQ_VARIANCE;
102 param->rc.f_aq_strength = 1.0;
103 param->rc.i_lookahead = 40;
105 param->rc.b_stat_write = 0;
106 param->rc.psz_stat_out = "x264_2pass.log";
107 param->rc.b_stat_read = 0;
108 param->rc.psz_stat_in = "x264_2pass.log";
109 param->rc.f_qcompress = 0.6;
110 param->rc.f_qblur = 0.5;
111 param->rc.f_complexity_blur = 20;
112 param->rc.i_zones = 0;
113 param->rc.b_mb_tree = 1;
116 param->pf_log = x264_log_default;
117 param->p_log_private = NULL;
118 param->i_log_level = X264_LOG_INFO;
121 param->analyse.intra = X264_ANALYSE_I4x4 | X264_ANALYSE_I8x8;
122 param->analyse.inter = X264_ANALYSE_I4x4 | X264_ANALYSE_I8x8
123 | X264_ANALYSE_PSUB16x16 | X264_ANALYSE_BSUB16x16;
124 param->analyse.i_direct_mv_pred = X264_DIRECT_PRED_SPATIAL;
125 param->analyse.i_me_method = X264_ME_HEX;
126 param->analyse.f_psy_rd = 1.0;
127 param->analyse.b_psy = 1;
128 param->analyse.f_psy_trellis = 0;
129 param->analyse.i_me_range = 16;
130 param->analyse.i_subpel_refine = 7;
131 param->analyse.b_mixed_references = 1;
132 param->analyse.b_chroma_me = 1;
133 param->analyse.i_mv_range_thread = -1;
134 param->analyse.i_mv_range = -1; // set from level_idc
135 param->analyse.i_chroma_qp_offset = 0;
136 param->analyse.b_fast_pskip = 1;
137 param->analyse.b_weighted_bipred = 1;
138 param->analyse.i_weighted_pred = X264_WEIGHTP_SMART;
139 param->analyse.b_dct_decimate = 1;
140 param->analyse.b_transform_8x8 = 1;
141 param->analyse.i_trellis = 1;
142 param->analyse.i_luma_deadzone[0] = 21;
143 param->analyse.i_luma_deadzone[1] = 11;
144 param->analyse.b_psnr = 0;
145 param->analyse.b_ssim = 0;
147 param->i_cqm_preset = X264_CQM_FLAT;
148 memset( param->cqm_4iy, 16, sizeof( param->cqm_4iy ) );
149 memset( param->cqm_4ic, 16, sizeof( param->cqm_4ic ) );
150 memset( param->cqm_4py, 16, sizeof( param->cqm_4py ) );
151 memset( param->cqm_4pc, 16, sizeof( param->cqm_4pc ) );
152 memset( param->cqm_8iy, 16, sizeof( param->cqm_8iy ) );
153 memset( param->cqm_8py, 16, sizeof( param->cqm_8py ) );
155 param->b_repeat_headers = 1;
158 param->b_vfr_input = 1;
159 param->b_dts_compress = 0;
160 param->i_nal_hrd = X264_NAL_HRD_NONE;
162 param->b_pic_struct = 0;
165 static int x264_param_apply_preset( x264_param_t *param, const char *preset )
167 if( !strcasecmp( preset, "ultrafast" ) )
169 param->i_frame_reference = 1;
170 param->i_scenecut_threshold = 0;
171 param->b_deblocking_filter = 0;
174 param->analyse.intra = 0;
175 param->analyse.inter = 0;
176 param->analyse.b_transform_8x8 = 0;
177 param->analyse.i_me_method = X264_ME_DIA;
178 param->analyse.i_subpel_refine = 0;
179 param->rc.i_aq_mode = 0;
180 param->analyse.b_mixed_references = 0;
181 param->analyse.i_trellis = 0;
182 param->i_bframe_adaptive = X264_B_ADAPT_NONE;
183 param->rc.b_mb_tree = 0;
184 param->analyse.i_weighted_pred = X264_WEIGHTP_NONE;
186 else if( !strcasecmp( preset, "superfast" ) )
188 param->analyse.inter = X264_ANALYSE_I8x8|X264_ANALYSE_I4x4;
189 param->analyse.i_me_method = X264_ME_DIA;
190 param->analyse.i_subpel_refine = 1;
191 param->i_frame_reference = 1;
192 param->analyse.b_mixed_references = 0;
193 param->analyse.i_trellis = 0;
194 param->rc.b_mb_tree = 0;
195 param->analyse.i_weighted_pred = X264_WEIGHTP_NONE;
197 else if( !strcasecmp( preset, "veryfast" ) )
199 param->analyse.i_me_method = X264_ME_HEX;
200 param->analyse.i_subpel_refine = 2;
201 param->i_frame_reference = 1;
202 param->analyse.b_mixed_references = 0;
203 param->analyse.i_trellis = 0;
204 param->rc.b_mb_tree = 0;
205 param->analyse.i_weighted_pred = X264_WEIGHTP_NONE;
207 else if( !strcasecmp( preset, "faster" ) )
209 param->analyse.b_mixed_references = 0;
210 param->i_frame_reference = 2;
211 param->analyse.i_subpel_refine = 4;
212 param->analyse.i_weighted_pred = X264_WEIGHTP_BLIND;
213 param->rc.i_lookahead = 20;
215 else if( !strcasecmp( preset, "fast" ) )
217 param->i_frame_reference = 2;
218 param->analyse.i_subpel_refine = 6;
219 param->rc.i_lookahead = 30;
221 else if( !strcasecmp( preset, "medium" ) )
223 /* Default is medium */
225 else if( !strcasecmp( preset, "slow" ) )
227 param->analyse.i_me_method = X264_ME_UMH;
228 param->analyse.i_subpel_refine = 8;
229 param->i_frame_reference = 5;
230 param->i_bframe_adaptive = X264_B_ADAPT_TRELLIS;
231 param->analyse.i_direct_mv_pred = X264_DIRECT_PRED_AUTO;
232 param->rc.i_lookahead = 50;
234 else if( !strcasecmp( preset, "slower" ) )
236 param->analyse.i_me_method = X264_ME_UMH;
237 param->analyse.i_subpel_refine = 9;
238 param->i_frame_reference = 8;
239 param->i_bframe_adaptive = X264_B_ADAPT_TRELLIS;
240 param->analyse.i_direct_mv_pred = X264_DIRECT_PRED_AUTO;
241 param->analyse.inter |= X264_ANALYSE_PSUB8x8;
242 param->analyse.i_trellis = 2;
243 param->rc.i_lookahead = 60;
245 else if( !strcasecmp( preset, "veryslow" ) )
247 param->analyse.i_me_method = X264_ME_UMH;
248 param->analyse.i_subpel_refine = 10;
249 param->analyse.i_me_range = 24;
250 param->i_frame_reference = 16;
251 param->i_bframe_adaptive = X264_B_ADAPT_TRELLIS;
252 param->analyse.i_direct_mv_pred = X264_DIRECT_PRED_AUTO;
253 param->analyse.inter |= X264_ANALYSE_PSUB8x8;
254 param->analyse.i_trellis = 2;
256 param->rc.i_lookahead = 60;
258 else if( !strcasecmp( preset, "placebo" ) )
260 param->analyse.i_me_method = X264_ME_TESA;
261 param->analyse.i_subpel_refine = 10;
262 param->analyse.i_me_range = 24;
263 param->i_frame_reference = 16;
264 param->i_bframe_adaptive = X264_B_ADAPT_TRELLIS;
265 param->analyse.i_direct_mv_pred = X264_DIRECT_PRED_AUTO;
266 param->analyse.inter |= X264_ANALYSE_PSUB8x8;
267 param->analyse.b_fast_pskip = 0;
268 param->analyse.i_trellis = 2;
269 param->i_bframe = 16;
270 param->rc.i_lookahead = 60;
274 x264_log( NULL, X264_LOG_ERROR, "invalid preset '%s'\n", preset );
280 static int x264_param_apply_tune( x264_param_t *param, const char *tune )
282 char *tmp = x264_malloc( strlen( tune ) );
285 tmp = strcpy( tmp, tune );
286 char *s = strtok( tmp, ",./-+" );
287 int psy_tuning_used = 0;
290 if( !strncasecmp( s, "film", 4 ) )
292 if( psy_tuning_used++ ) goto psy_failure;
293 param->i_deblocking_filter_alphac0 = -1;
294 param->i_deblocking_filter_beta = -1;
295 param->analyse.f_psy_trellis = 0.15;
297 else if( !strncasecmp( s, "animation", 9 ) )
299 if( psy_tuning_used++ ) goto psy_failure;
300 param->i_frame_reference = param->i_frame_reference > 1 ? param->i_frame_reference*2 : 1;
301 param->i_deblocking_filter_alphac0 = 1;
302 param->i_deblocking_filter_beta = 1;
303 param->analyse.f_psy_rd = 0.4;
304 param->rc.f_aq_strength = 0.6;
305 param->i_bframe += 2;
307 else if( !strncasecmp( s, "grain", 5 ) )
309 if( psy_tuning_used++ ) goto psy_failure;
310 param->i_deblocking_filter_alphac0 = -2;
311 param->i_deblocking_filter_beta = -2;
312 param->analyse.f_psy_trellis = 0.25;
313 param->analyse.b_dct_decimate = 0;
314 param->rc.f_pb_factor = 1.1;
315 param->rc.f_ip_factor = 1.1;
316 param->rc.f_aq_strength = 0.5;
317 param->analyse.i_luma_deadzone[0] = 6;
318 param->analyse.i_luma_deadzone[1] = 6;
319 param->rc.f_qcompress = 0.8;
321 else if( !strncasecmp( s, "stillimage", 5 ) )
323 if( psy_tuning_used++ ) goto psy_failure;
324 param->i_deblocking_filter_alphac0 = -3;
325 param->i_deblocking_filter_beta = -3;
326 param->analyse.f_psy_rd = 2.0;
327 param->analyse.f_psy_trellis = 0.7;
328 param->rc.f_aq_strength = 1.2;
330 else if( !strncasecmp( s, "psnr", 4 ) )
332 if( psy_tuning_used++ ) goto psy_failure;
333 param->rc.i_aq_mode = X264_AQ_NONE;
334 param->analyse.b_psy = 0;
336 else if( !strncasecmp( s, "ssim", 4 ) )
338 if( psy_tuning_used++ ) goto psy_failure;
339 param->rc.i_aq_mode = X264_AQ_AUTOVARIANCE;
340 param->analyse.b_psy = 0;
342 else if( !strncasecmp( s, "fastdecode", 10 ) )
344 param->b_deblocking_filter = 0;
346 param->analyse.b_weighted_bipred = 0;
347 param->analyse.i_weighted_pred = X264_WEIGHTP_NONE;
349 else if( !strncasecmp( s, "zerolatency", 11 ) )
351 param->rc.i_lookahead = 0;
352 param->i_sync_lookahead = 0;
354 param->b_sliced_threads = 1;
355 param->b_vfr_input = 0;
357 else if( !strncasecmp( s, "touhou", 6 ) )
359 if( psy_tuning_used++ ) goto psy_failure;
360 param->i_frame_reference = param->i_frame_reference > 1 ? param->i_frame_reference*2 : 1;
361 param->i_deblocking_filter_alphac0 = -1;
362 param->i_deblocking_filter_beta = -1;
363 param->analyse.f_psy_trellis = 0.2;
364 param->rc.f_aq_strength = 1.3;
365 if( param->analyse.inter & X264_ANALYSE_PSUB16x16 )
366 param->analyse.inter |= X264_ANALYSE_PSUB8x8;
370 x264_log( NULL, X264_LOG_ERROR, "invalid tune '%s'\n", s );
377 x264_log( NULL, X264_LOG_WARNING, "only 1 psy tuning can be used: ignoring tune %s\n", s );
379 s = strtok( NULL, ",./-+" );
385 int x264_param_default_preset( x264_param_t *param, const char *preset, const char *tune )
387 x264_param_default( param );
389 if( preset && x264_param_apply_preset( param, preset ) < 0 )
391 if( tune && x264_param_apply_tune( param, tune ) < 0 )
396 void x264_param_apply_fastfirstpass( x264_param_t *param )
398 /* Set faster options in case of turbo firstpass. */
399 if( param->rc.b_stat_write && !param->rc.b_stat_read )
401 param->i_frame_reference = 1;
402 param->analyse.b_transform_8x8 = 0;
403 param->analyse.inter = 0;
404 param->analyse.i_me_method = X264_ME_DIA;
405 param->analyse.i_subpel_refine = X264_MIN( 2, param->analyse.i_subpel_refine );
406 param->analyse.i_trellis = 0;
407 param->analyse.b_fast_pskip = 1;
411 int x264_param_apply_profile( x264_param_t *param, const char *profile )
416 if( !strcasecmp( profile, "baseline" ) )
418 param->analyse.b_transform_8x8 = 0;
420 param->i_cqm_preset = X264_CQM_FLAT;
422 param->analyse.i_weighted_pred = X264_WEIGHTP_NONE;
423 if( param->b_interlaced )
425 x264_log( NULL, X264_LOG_ERROR, "baseline profile doesn't support interlacing\n" );
429 else if( !strcasecmp( profile, "main" ) )
431 param->analyse.b_transform_8x8 = 0;
432 param->i_cqm_preset = X264_CQM_FLAT;
434 else if( !strcasecmp( profile, "high" ) )
440 x264_log( NULL, X264_LOG_ERROR, "invalid profile: %s\n", profile );
443 if( (param->rc.i_rc_method == X264_RC_CQP && param->rc.i_qp_constant == 0) ||
444 (param->rc.i_rc_method == X264_RC_CRF && param->rc.f_rf_constant == 0) )
446 x264_log( NULL, X264_LOG_ERROR, "%s profile doesn't support lossless\n", profile );
452 static int parse_enum( const char *arg, const char * const *names, int *dst )
454 for( int i = 0; names[i]; i++ )
455 if( !strcmp( arg, names[i] ) )
463 static int parse_cqm( const char *str, uint8_t *cqm, int length )
468 if( !sscanf( str, "%d", &coef ) || coef < 1 || coef > 255 )
471 } while( i < length && (str = strchr( str, ',' )) && str++ );
472 return (i == length) ? 0 : -1;
475 static int x264_atobool( const char *str, int *b_error )
477 if( !strcmp(str, "1") ||
478 !strcmp(str, "true") ||
479 !strcmp(str, "yes") )
481 if( !strcmp(str, "0") ||
482 !strcmp(str, "false") ||
489 static int x264_atoi( const char *str, int *b_error )
492 int v = strtol( str, &end, 0 );
493 if( end == str || *end != '\0' )
498 static double x264_atof( const char *str, int *b_error )
501 double v = strtod( str, &end );
502 if( end == str || *end != '\0' )
507 #define atobool(str) ( name_was_bool = 1, x264_atobool( str, &b_error ) )
508 #define atoi(str) x264_atoi( str, &b_error )
509 #define atof(str) x264_atof( str, &b_error )
511 int x264_param_parse( x264_param_t *p, const char *name, const char *value )
513 char *name_buf = NULL;
516 int value_was_null = !value;
520 return X264_PARAM_BAD_NAME;
524 if( value[0] == '=' )
527 if( strchr( name, '_' ) ) // s/_/-/g
530 name_buf = strdup(name);
531 while( (c = strchr( name_buf, '_' )) )
536 if( (!strncmp( name, "no-", 3 ) && (i = 3)) ||
537 (!strncmp( name, "no", 2 ) && (i = 2)) )
540 value = atobool(value) ? "false" : "true";
544 #define OPT(STR) else if( !strcmp( name, STR ) )
545 #define OPT2(STR0, STR1) else if( !strcmp( name, STR0 ) || !strcmp( name, STR1 ) )
549 p->cpu = isdigit(value[0]) ? atoi(value) :
550 !strcmp(value, "auto") || atobool(value) ? x264_cpu_detect() : 0;
553 char *buf = strdup(value);
554 char *tok, UNUSED *saveptr=NULL, *init;
557 for( init=buf; (tok=strtok_r(init, ",", &saveptr)); init=NULL )
559 for( i=0; x264_cpu_names[i].flags && strcasecmp(tok, x264_cpu_names[i].name); i++ );
560 p->cpu |= x264_cpu_names[i].flags;
561 if( !x264_cpu_names[i].flags )
569 if( !strcmp(value, "auto") )
570 p->i_threads = X264_THREADS_AUTO;
572 p->i_threads = atoi(value);
574 OPT("sliced-threads")
575 p->b_sliced_threads = atobool(value);
576 OPT("sync-lookahead")
578 if( !strcmp(value, "auto") )
579 p->i_sync_lookahead = X264_SYNC_LOOKAHEAD_AUTO;
581 p->i_sync_lookahead = atoi(value);
583 OPT2("deterministic", "n-deterministic")
584 p->b_deterministic = atobool(value);
585 OPT2("level", "level-idc")
587 if( atof(value) < 6 )
588 p->i_level_idc = (int)(10*atof(value)+.5);
590 p->i_level_idc = atoi(value);
594 b_error = ( 2 != sscanf( value, "%d:%d", &p->vui.i_sar_width, &p->vui.i_sar_height ) &&
595 2 != sscanf( value, "%d/%d", &p->vui.i_sar_width, &p->vui.i_sar_height ) );
598 b_error |= parse_enum( value, x264_overscan_names, &p->vui.i_overscan );
600 b_error |= parse_enum( value, x264_vidformat_names, &p->vui.i_vidformat );
602 b_error |= parse_enum( value, x264_fullrange_names, &p->vui.b_fullrange );
604 b_error |= parse_enum( value, x264_colorprim_names, &p->vui.i_colorprim );
606 b_error |= parse_enum( value, x264_transfer_names, &p->vui.i_transfer );
608 b_error |= parse_enum( value, x264_colmatrix_names, &p->vui.i_colmatrix );
611 p->vui.i_chroma_loc = atoi(value);
612 b_error = ( p->vui.i_chroma_loc < 0 || p->vui.i_chroma_loc > 5 );
616 if( sscanf( value, "%u/%u", &p->i_fps_num, &p->i_fps_den ) == 2 )
620 float fps = atof(value);
621 p->i_fps_num = (int)(fps * 1000 + .5);
625 OPT2("ref", "frameref")
626 p->i_frame_reference = atoi(value);
629 p->i_keyint_max = atoi(value);
630 if( p->i_keyint_min > p->i_keyint_max )
631 p->i_keyint_min = p->i_keyint_max;
633 OPT2("min-keyint", "keyint-min")
635 p->i_keyint_min = atoi(value);
636 if( p->i_keyint_max < p->i_keyint_min )
637 p->i_keyint_max = p->i_keyint_min;
641 p->i_scenecut_threshold = atobool(value);
642 if( b_error || p->i_scenecut_threshold )
645 p->i_scenecut_threshold = atoi(value);
649 p->b_intra_refresh = atobool(value);
651 p->i_bframe = atoi(value);
654 p->i_bframe_adaptive = atobool(value);
658 p->i_bframe_adaptive = atoi(value);
662 p->i_bframe_bias = atoi(value);
665 b_error |= parse_enum( value, x264_b_pyramid_names, &p->i_bframe_pyramid );
669 p->i_bframe_pyramid = atoi(value);
673 p->b_deblocking_filter = !atobool(value);
674 OPT2("filter", "deblock")
676 if( 2 == sscanf( value, "%d:%d", &p->i_deblocking_filter_alphac0, &p->i_deblocking_filter_beta ) ||
677 2 == sscanf( value, "%d,%d", &p->i_deblocking_filter_alphac0, &p->i_deblocking_filter_beta ) )
679 p->b_deblocking_filter = 1;
681 else if( sscanf( value, "%d", &p->i_deblocking_filter_alphac0 ) )
683 p->b_deblocking_filter = 1;
684 p->i_deblocking_filter_beta = p->i_deblocking_filter_alphac0;
687 p->b_deblocking_filter = atobool(value);
689 OPT("slice-max-size")
690 p->i_slice_max_size = atoi(value);
692 p->i_slice_max_mbs = atoi(value);
694 p->i_slice_count = atoi(value);
696 p->b_cabac = atobool(value);
698 p->i_cabac_init_idc = atoi(value);
700 p->b_interlaced = atobool(value);
702 p->b_interlaced = p->b_tff = atobool(value);
705 p->b_interlaced = atobool(value);
706 p->b_tff = !p->b_interlaced;
708 OPT("constrained-intra")
709 p->b_constrained_intra = atobool(value);
712 if( strstr( value, "flat" ) )
713 p->i_cqm_preset = X264_CQM_FLAT;
714 else if( strstr( value, "jvt" ) )
715 p->i_cqm_preset = X264_CQM_JVT;
717 p->psz_cqm_file = strdup(value);
720 p->psz_cqm_file = strdup(value);
723 p->i_cqm_preset = X264_CQM_CUSTOM;
724 b_error |= parse_cqm( value, p->cqm_4iy, 16 );
725 b_error |= parse_cqm( value, p->cqm_4ic, 16 );
726 b_error |= parse_cqm( value, p->cqm_4py, 16 );
727 b_error |= parse_cqm( value, p->cqm_4pc, 16 );
731 p->i_cqm_preset = X264_CQM_CUSTOM;
732 b_error |= parse_cqm( value, p->cqm_8iy, 64 );
733 b_error |= parse_cqm( value, p->cqm_8py, 64 );
737 p->i_cqm_preset = X264_CQM_CUSTOM;
738 b_error |= parse_cqm( value, p->cqm_4iy, 16 );
739 b_error |= parse_cqm( value, p->cqm_4ic, 16 );
743 p->i_cqm_preset = X264_CQM_CUSTOM;
744 b_error |= parse_cqm( value, p->cqm_4py, 16 );
745 b_error |= parse_cqm( value, p->cqm_4pc, 16 );
749 p->i_cqm_preset = X264_CQM_CUSTOM;
750 b_error |= parse_cqm( value, p->cqm_4iy, 16 );
754 p->i_cqm_preset = X264_CQM_CUSTOM;
755 b_error |= parse_cqm( value, p->cqm_4ic, 16 );
759 p->i_cqm_preset = X264_CQM_CUSTOM;
760 b_error |= parse_cqm( value, p->cqm_4py, 16 );
764 p->i_cqm_preset = X264_CQM_CUSTOM;
765 b_error |= parse_cqm( value, p->cqm_4pc, 16 );
769 p->i_cqm_preset = X264_CQM_CUSTOM;
770 b_error |= parse_cqm( value, p->cqm_8iy, 64 );
774 p->i_cqm_preset = X264_CQM_CUSTOM;
775 b_error |= parse_cqm( value, p->cqm_8py, 64 );
778 p->i_log_level = atoi(value);
779 #ifdef HAVE_VISUALIZE
781 p->b_visualize = atobool(value);
784 p->psz_dump_yuv = strdup(value);
785 OPT2("analyse", "partitions")
787 p->analyse.inter = 0;
788 if( strstr( value, "none" ) ) p->analyse.inter = 0;
789 if( strstr( value, "all" ) ) p->analyse.inter = ~0;
791 if( strstr( value, "i4x4" ) ) p->analyse.inter |= X264_ANALYSE_I4x4;
792 if( strstr( value, "i8x8" ) ) p->analyse.inter |= X264_ANALYSE_I8x8;
793 if( strstr( value, "p8x8" ) ) p->analyse.inter |= X264_ANALYSE_PSUB16x16;
794 if( strstr( value, "p4x4" ) ) p->analyse.inter |= X264_ANALYSE_PSUB8x8;
795 if( strstr( value, "b8x8" ) ) p->analyse.inter |= X264_ANALYSE_BSUB16x16;
798 p->analyse.b_transform_8x8 = atobool(value);
799 OPT2("weightb", "weight-b")
800 p->analyse.b_weighted_bipred = atobool(value);
802 p->analyse.i_weighted_pred = atoi(value);
803 OPT2("direct", "direct-pred")
804 b_error |= parse_enum( value, x264_direct_pred_names, &p->analyse.i_direct_mv_pred );
805 OPT("chroma-qp-offset")
806 p->analyse.i_chroma_qp_offset = atoi(value);
808 b_error |= parse_enum( value, x264_motion_est_names, &p->analyse.i_me_method );
809 OPT2("merange", "me-range")
810 p->analyse.i_me_range = atoi(value);
811 OPT2("mvrange", "mv-range")
812 p->analyse.i_mv_range = atoi(value);
813 OPT2("mvrange-thread", "mv-range-thread")
814 p->analyse.i_mv_range_thread = atoi(value);
815 OPT2("subme", "subq")
816 p->analyse.i_subpel_refine = atoi(value);
819 if( 2 == sscanf( value, "%f:%f", &p->analyse.f_psy_rd, &p->analyse.f_psy_trellis ) ||
820 2 == sscanf( value, "%f,%f", &p->analyse.f_psy_rd, &p->analyse.f_psy_trellis ) ||
821 2 == sscanf( value, "%f|%f", &p->analyse.f_psy_rd, &p->analyse.f_psy_trellis ))
823 else if( sscanf( value, "%f", &p->analyse.f_psy_rd ) )
825 p->analyse.f_psy_trellis = 0;
829 p->analyse.f_psy_rd = 0;
830 p->analyse.f_psy_trellis = 0;
834 p->analyse.b_psy = atobool(value);
836 p->analyse.b_chroma_me = atobool(value);
838 p->analyse.b_mixed_references = atobool(value);
840 p->analyse.i_trellis = atoi(value);
842 p->analyse.b_fast_pskip = atobool(value);
844 p->analyse.b_dct_decimate = atobool(value);
845 OPT("deadzone-inter")
846 p->analyse.i_luma_deadzone[0] = atoi(value);
847 OPT("deadzone-intra")
848 p->analyse.i_luma_deadzone[1] = atoi(value);
850 p->analyse.i_noise_reduction = atoi(value);
853 p->rc.i_bitrate = atoi(value);
854 p->rc.i_rc_method = X264_RC_ABR;
856 OPT2("qp", "qp_constant")
858 p->rc.i_qp_constant = atoi(value);
859 p->rc.i_rc_method = X264_RC_CQP;
863 p->rc.f_rf_constant = atof(value);
864 p->rc.i_rc_method = X264_RC_CRF;
867 p->rc.f_rf_constant_max = atof(value);
869 p->rc.i_lookahead = atoi(value);
870 OPT2("qpmin", "qp-min")
871 p->rc.i_qp_min = atoi(value);
872 OPT2("qpmax", "qp-max")
873 p->rc.i_qp_max = atoi(value);
874 OPT2("qpstep", "qp-step")
875 p->rc.i_qp_step = atoi(value);
877 p->rc.f_rate_tolerance = !strncmp("inf", value, 3) ? 1e9 : atof(value);
879 p->rc.i_vbv_max_bitrate = atoi(value);
881 p->rc.i_vbv_buffer_size = atoi(value);
883 p->rc.f_vbv_buffer_init = atof(value);
884 OPT2("ipratio", "ip-factor")
885 p->rc.f_ip_factor = atof(value);
886 OPT2("pbratio", "pb-factor")
887 p->rc.f_pb_factor = atof(value);
889 p->rc.i_aq_mode = atoi(value);
891 p->rc.f_aq_strength = atof(value);
894 int pass = x264_clip3( atoi(value), 0, 3 );
895 p->rc.b_stat_write = pass & 1;
896 p->rc.b_stat_read = pass & 2;
900 p->rc.psz_stat_in = strdup(value);
901 p->rc.psz_stat_out = strdup(value);
904 p->rc.f_qcompress = atof(value);
906 p->rc.b_mb_tree = atobool(value);
908 p->rc.f_qblur = atof(value);
909 OPT2("cplxblur", "cplx-blur")
910 p->rc.f_complexity_blur = atof(value);
912 p->rc.psz_zones = strdup(value);
914 p->analyse.b_psnr = atobool(value);
916 p->analyse.b_ssim = atobool(value);
918 p->b_aud = atobool(value);
920 p->i_sps_id = atoi(value);
922 p->b_repeat_headers = !atobool(value);
923 OPT("repeat-headers")
924 p->b_repeat_headers = atobool(value);
926 p->b_annexb = atobool(value);
928 p->b_vfr_input = !atobool(value);
930 b_error |= parse_enum( value, x264_nal_hrd_names, &p->i_nal_hrd );
932 p->b_pic_struct = atobool(value);
934 return X264_PARAM_BAD_NAME;
944 b_error |= value_was_null && !name_was_bool;
945 return b_error ? X264_PARAM_BAD_VALUE : 0;
948 /****************************************************************************
950 ****************************************************************************/
951 void x264_log( x264_t *h, int i_level, const char *psz_fmt, ... )
953 if( !h || i_level <= h->param.i_log_level )
956 va_start( arg, psz_fmt );
958 x264_log_default( NULL, i_level, psz_fmt, arg );
960 h->param.pf_log( h->param.p_log_private, i_level, psz_fmt, arg );
965 static void x264_log_default( void *p_unused, int i_level, const char *psz_fmt, va_list arg )
971 psz_prefix = "error";
973 case X264_LOG_WARNING:
974 psz_prefix = "warning";
980 psz_prefix = "debug";
983 psz_prefix = "unknown";
986 fprintf( stderr, "x264 [%s]: ", psz_prefix );
987 vfprintf( stderr, psz_fmt, arg );
990 /****************************************************************************
991 * x264_picture_alloc:
992 ****************************************************************************/
993 int x264_picture_alloc( x264_picture_t *pic, int i_csp, int i_width, int i_height )
995 pic->i_type = X264_TYPE_AUTO;
997 pic->img.i_csp = i_csp;
998 pic->img.i_plane = 3;
999 pic->img.plane[0] = x264_malloc( 3 * i_width * i_height / 2 );
1000 if( !pic->img.plane[0] )
1002 pic->img.plane[1] = pic->img.plane[0] + i_width * i_height;
1003 pic->img.plane[2] = pic->img.plane[1] + i_width * i_height / 4;
1004 pic->img.i_stride[0] = i_width;
1005 pic->img.i_stride[1] = i_width / 2;
1006 pic->img.i_stride[2] = i_width / 2;
1008 pic->i_pic_struct = PIC_STRUCT_AUTO;
1012 /****************************************************************************
1013 * x264_picture_clean:
1014 ****************************************************************************/
1015 void x264_picture_clean( x264_picture_t *pic )
1017 x264_free( pic->img.plane[0] );
1019 /* just to be safe */
1020 memset( pic, 0, sizeof( x264_picture_t ) );
1023 /****************************************************************************
1025 ****************************************************************************/
1026 int x264_nal_encode( uint8_t *dst, x264_nal_t *nal, int b_annexb, int b_long_startcode )
1028 uint8_t *src = nal->p_payload;
1029 uint8_t *end = nal->p_payload + nal->i_payload;
1030 uint8_t *orig_dst = dst;
1031 int i_count = 0, size;
1035 if( b_long_startcode )
1041 else /* save room for size later */
1045 *dst++ = ( 0x00 << 7 ) | ( nal->i_ref_idc << 5 ) | nal->i_type;
1049 if( i_count == 2 && *src <= 0x03 )
1060 size = (dst - orig_dst) - 4;
1062 /* Write the size header for mp4/etc */
1065 /* Size doesn't include the size of the header we're writing now. */
1066 orig_dst[0] = size>>24;
1067 orig_dst[1] = size>>16;
1068 orig_dst[2] = size>> 8;
1069 orig_dst[3] = size>> 0;
1077 /****************************************************************************
1079 ****************************************************************************/
1080 void *x264_malloc( int i_size )
1082 uint8_t *align_buf = NULL;
1084 /* Mac OS X always returns 16 bytes aligned memory */
1085 align_buf = malloc( i_size );
1086 #elif defined( HAVE_MALLOC_H )
1087 align_buf = memalign( 16, i_size );
1089 uint8_t *buf = malloc( i_size + 15 + sizeof(void **) + sizeof(int) );
1092 align_buf = buf + 15 + sizeof(void **) + sizeof(int);
1093 align_buf -= (intptr_t) align_buf & 15;
1094 *( (void **) ( align_buf - sizeof(void **) ) ) = buf;
1095 *( (int *) ( align_buf - sizeof(void **) - sizeof(int) ) ) = i_size;
1099 x264_log( NULL, X264_LOG_ERROR, "malloc of size %d failed\n", i_size );
1103 /****************************************************************************
1105 ****************************************************************************/
1106 void x264_free( void *p )
1110 #if defined( HAVE_MALLOC_H ) || defined( SYS_MACOSX )
1113 free( *( ( ( void **) p ) - 1 ) );
1118 /****************************************************************************
1119 * x264_reduce_fraction:
1120 ****************************************************************************/
1121 void x264_reduce_fraction( uint32_t *n, uint32_t *d )
1139 /****************************************************************************
1141 ****************************************************************************/
1142 char *x264_slurp_file( const char *filename )
1147 FILE *fh = fopen( filename, "rb" );
1150 b_error |= fseek( fh, 0, SEEK_END ) < 0;
1151 b_error |= ( i_size = ftell( fh ) ) <= 0;
1152 b_error |= fseek( fh, 0, SEEK_SET ) < 0;
1155 buf = x264_malloc( i_size+2 );
1158 b_error |= fread( buf, 1, i_size, fh ) != i_size;
1159 if( buf[i_size-1] != '\n' )
1160 buf[i_size++] = '\n';
1171 /****************************************************************************
1172 * x264_param2string:
1173 ****************************************************************************/
1174 char *x264_param2string( x264_param_t *p, int b_res )
1178 if( p->rc.psz_zones )
1179 len += strlen(p->rc.psz_zones);
1180 buf = s = x264_malloc( len );
1186 s += sprintf( s, "%dx%d ", p->i_width, p->i_height );
1187 s += sprintf( s, "fps=%u/%u ", p->i_fps_num, p->i_fps_den );
1188 s += sprintf( s, "timebase=%u/%u ", p->i_timebase_num, p->i_timebase_den );
1191 s += sprintf( s, "cabac=%d", p->b_cabac );
1192 s += sprintf( s, " ref=%d", p->i_frame_reference );
1193 s += sprintf( s, " deblock=%d:%d:%d", p->b_deblocking_filter,
1194 p->i_deblocking_filter_alphac0, p->i_deblocking_filter_beta );
1195 s += sprintf( s, " analyse=%#x:%#x", p->analyse.intra, p->analyse.inter );
1196 s += sprintf( s, " me=%s", x264_motion_est_names[ p->analyse.i_me_method ] );
1197 s += sprintf( s, " subme=%d", p->analyse.i_subpel_refine );
1198 s += sprintf( s, " psy=%d", p->analyse.b_psy );
1199 if( p->analyse.b_psy )
1200 s += sprintf( s, " psy_rd=%.2f:%.2f", p->analyse.f_psy_rd, p->analyse.f_psy_trellis );
1201 s += sprintf( s, " mixed_ref=%d", p->analyse.b_mixed_references );
1202 s += sprintf( s, " me_range=%d", p->analyse.i_me_range );
1203 s += sprintf( s, " chroma_me=%d", p->analyse.b_chroma_me );
1204 s += sprintf( s, " trellis=%d", p->analyse.i_trellis );
1205 s += sprintf( s, " 8x8dct=%d", p->analyse.b_transform_8x8 );
1206 s += sprintf( s, " cqm=%d", p->i_cqm_preset );
1207 s += sprintf( s, " deadzone=%d,%d", p->analyse.i_luma_deadzone[0], p->analyse.i_luma_deadzone[1] );
1208 s += sprintf( s, " fast_pskip=%d", p->analyse.b_fast_pskip );
1209 s += sprintf( s, " chroma_qp_offset=%d", p->analyse.i_chroma_qp_offset );
1210 s += sprintf( s, " threads=%d", p->i_threads );
1211 s += sprintf( s, " sliced_threads=%d", p->b_sliced_threads );
1212 if( p->i_slice_count )
1213 s += sprintf( s, " slices=%d", p->i_slice_count );
1214 if( p->i_slice_max_size )
1215 s += sprintf( s, " slice_max_size=%d", p->i_slice_max_size );
1216 if( p->i_slice_max_mbs )
1217 s += sprintf( s, " slice_max_mbs=%d", p->i_slice_max_mbs );
1218 s += sprintf( s, " nr=%d", p->analyse.i_noise_reduction );
1219 s += sprintf( s, " decimate=%d", p->analyse.b_dct_decimate );
1220 s += sprintf( s, " interlaced=%s", p->b_interlaced ? p->b_tff ? "tff" : "bff" : "0" );
1222 s += sprintf( s, " constrained_intra=%d", p->b_constrained_intra );
1224 s += sprintf( s, " bframes=%d", p->i_bframe );
1227 s += sprintf( s, " b_pyramid=%d b_adapt=%d b_bias=%d direct=%d weightb=%d",
1228 p->i_bframe_pyramid, p->i_bframe_adaptive, p->i_bframe_bias,
1229 p->analyse.i_direct_mv_pred, p->analyse.b_weighted_bipred );
1231 s += sprintf( s, " weightp=%d", p->analyse.i_weighted_pred > 0 ? p->analyse.i_weighted_pred : 0 );
1233 s += sprintf( s, " keyint=%d keyint_min=%d scenecut=%d intra_refresh=%d",
1234 p->i_keyint_max, p->i_keyint_min, p->i_scenecut_threshold, p->b_intra_refresh );
1236 if( p->rc.b_mb_tree || p->rc.i_vbv_buffer_size )
1237 s += sprintf( s, " rc_lookahead=%d", p->rc.i_lookahead );
1239 s += sprintf( s, " rc=%s mbtree=%d", p->rc.i_rc_method == X264_RC_ABR ?
1240 ( p->rc.b_stat_read ? "2pass" : p->rc.i_vbv_buffer_size == p->rc.i_bitrate ? "cbr" : "abr" )
1241 : p->rc.i_rc_method == X264_RC_CRF ? "crf" : "cqp", p->rc.b_mb_tree );
1242 if( p->rc.i_rc_method == X264_RC_ABR || p->rc.i_rc_method == X264_RC_CRF )
1244 if( p->rc.i_rc_method == X264_RC_CRF )
1245 s += sprintf( s, " crf=%.1f", p->rc.f_rf_constant );
1247 s += sprintf( s, " bitrate=%d ratetol=%.1f",
1248 p->rc.i_bitrate, p->rc.f_rate_tolerance );
1249 s += sprintf( s, " qcomp=%.2f qpmin=%d qpmax=%d qpstep=%d",
1250 p->rc.f_qcompress, p->rc.i_qp_min, p->rc.i_qp_max, p->rc.i_qp_step );
1251 if( p->rc.b_stat_read )
1252 s += sprintf( s, " cplxblur=%.1f qblur=%.1f",
1253 p->rc.f_complexity_blur, p->rc.f_qblur );
1254 if( p->rc.i_vbv_buffer_size )
1256 s += sprintf( s, " vbv_maxrate=%d vbv_bufsize=%d",
1257 p->rc.i_vbv_max_bitrate, p->rc.i_vbv_buffer_size );
1258 if( p->rc.i_rc_method == X264_RC_CRF )
1259 s += sprintf( s, " crf-max=%.1f", p->rc.f_rf_constant_max );
1262 else if( p->rc.i_rc_method == X264_RC_CQP )
1263 s += sprintf( s, " qp=%d", p->rc.i_qp_constant );
1264 if( !(p->rc.i_rc_method == X264_RC_CQP && p->rc.i_qp_constant == 0) )
1266 s += sprintf( s, " ip_ratio=%.2f", p->rc.f_ip_factor );
1267 if( p->i_bframe && !p->rc.b_mb_tree )
1268 s += sprintf( s, " pb_ratio=%.2f", p->rc.f_pb_factor );
1269 s += sprintf( s, " aq=%d", p->rc.i_aq_mode );
1270 if( p->rc.i_aq_mode )
1271 s += sprintf( s, ":%.2f", p->rc.f_aq_strength );
1272 if( p->rc.psz_zones )
1273 s += sprintf( s, " zones=%s", p->rc.psz_zones );
1274 else if( p->rc.i_zones )
1275 s += sprintf( s, " zones" );
1278 if( p->rc.i_vbv_buffer_size )
1279 s += sprintf( s, " nal_hrd=%s", x264_nal_hrd_names[p->i_nal_hrd] );