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 *****************************************************************************/
34 static void x264_log_default( void *, int, const char *, va_list );
36 /****************************************************************************
38 ****************************************************************************/
39 void x264_param_default( x264_param_t *param )
42 memset( param, 0, sizeof( x264_param_t ) );
45 param->cpu = x264_cpu_detect();
46 param->i_threads = X264_THREADS_AUTO;
47 param->b_deterministic = 1;
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 = 25;
74 param->i_scenecut_threshold = 40;
75 param->i_bframe_adaptive = X264_B_ADAPT_FAST;
76 param->i_bframe_bias = 0;
77 param->b_bframe_pyramid = 0;
79 param->b_deblocking_filter = 1;
80 param->i_deblocking_filter_alphac0 = 0;
81 param->i_deblocking_filter_beta = 0;
84 param->i_cabac_init_idc = 0;
86 param->rc.i_rc_method = X264_RC_CRF;
87 param->rc.i_bitrate = 0;
88 param->rc.f_rate_tolerance = 1.0;
89 param->rc.i_vbv_max_bitrate = 0;
90 param->rc.i_vbv_buffer_size = 0;
91 param->rc.f_vbv_buffer_init = 0.9;
92 param->rc.i_qp_constant = 23;
93 param->rc.f_rf_constant = 23;
94 param->rc.i_qp_min = 10;
95 param->rc.i_qp_max = 51;
96 param->rc.i_qp_step = 4;
97 param->rc.f_ip_factor = 1.4;
98 param->rc.f_pb_factor = 1.3;
99 param->rc.i_aq_mode = X264_AQ_VARIANCE;
100 param->rc.f_aq_strength = 1.0;
101 param->rc.i_lookahead = 40;
103 param->rc.b_stat_write = 0;
104 param->rc.psz_stat_out = "x264_2pass.log";
105 param->rc.b_stat_read = 0;
106 param->rc.psz_stat_in = "x264_2pass.log";
107 param->rc.f_qcompress = 0.6;
108 param->rc.f_qblur = 0.5;
109 param->rc.f_complexity_blur = 20;
110 param->rc.i_zones = 0;
111 param->rc.b_mb_tree = 1;
114 param->pf_log = x264_log_default;
115 param->p_log_private = NULL;
116 param->i_log_level = X264_LOG_INFO;
119 param->analyse.intra = X264_ANALYSE_I4x4 | X264_ANALYSE_I8x8;
120 param->analyse.inter = X264_ANALYSE_I4x4 | X264_ANALYSE_I8x8
121 | X264_ANALYSE_PSUB16x16 | X264_ANALYSE_BSUB16x16;
122 param->analyse.i_direct_mv_pred = X264_DIRECT_PRED_SPATIAL;
123 param->analyse.i_me_method = X264_ME_HEX;
124 param->analyse.f_psy_rd = 1.0;
125 param->analyse.b_psy = 1;
126 param->analyse.f_psy_trellis = 0;
127 param->analyse.i_me_range = 16;
128 param->analyse.i_subpel_refine = 7;
129 param->analyse.b_mixed_references = 1;
130 param->analyse.b_chroma_me = 1;
131 param->analyse.i_mv_range_thread = -1;
132 param->analyse.i_mv_range = -1; // set from level_idc
133 param->analyse.i_chroma_qp_offset = 0;
134 param->analyse.b_fast_pskip = 1;
135 param->analyse.b_weighted_bipred = 1;
136 param->analyse.b_dct_decimate = 1;
137 param->analyse.b_transform_8x8 = 1;
138 param->analyse.i_trellis = 1;
139 param->analyse.i_luma_deadzone[0] = 21;
140 param->analyse.i_luma_deadzone[1] = 11;
141 param->analyse.b_psnr = 0;
142 param->analyse.b_ssim = 0;
144 param->i_cqm_preset = X264_CQM_FLAT;
145 memset( param->cqm_4iy, 16, 16 );
146 memset( param->cqm_4ic, 16, 16 );
147 memset( param->cqm_4py, 16, 16 );
148 memset( param->cqm_4pc, 16, 16 );
149 memset( param->cqm_8iy, 16, 64 );
150 memset( param->cqm_8py, 16, 64 );
152 param->b_repeat_headers = 1;
156 static int parse_enum( const char *arg, const char * const *names, int *dst )
159 for( i = 0; names[i]; i++ )
160 if( !strcmp( arg, names[i] ) )
168 static int parse_cqm( const char *str, uint8_t *cqm, int length )
173 if( !sscanf( str, "%d", &coef ) || coef < 1 || coef > 255 )
176 } while( i < length && (str = strchr( str, ',' )) && str++ );
177 return (i == length) ? 0 : -1;
180 static int x264_atobool( const char *str, int *b_error )
182 if( !strcmp(str, "1") ||
183 !strcmp(str, "true") ||
184 !strcmp(str, "yes") )
186 if( !strcmp(str, "0") ||
187 !strcmp(str, "false") ||
194 static int x264_atoi( const char *str, int *b_error )
197 int v = strtol( str, &end, 0 );
198 if( end == str || *end != '\0' )
203 static double x264_atof( const char *str, int *b_error )
206 double v = strtod( str, &end );
207 if( end == str || *end != '\0' )
212 #define atobool(str) ( name_was_bool = 1, x264_atobool( str, &b_error ) )
213 #define atoi(str) x264_atoi( str, &b_error )
214 #define atof(str) x264_atof( str, &b_error )
216 int x264_param_parse( x264_param_t *p, const char *name, const char *value )
218 char *name_buf = NULL;
221 int value_was_null = !value;
225 return X264_PARAM_BAD_NAME;
229 if( value[0] == '=' )
232 if( strchr( name, '_' ) ) // s/_/-/g
235 name_buf = strdup(name);
236 while( (p = strchr( name_buf, '_' )) )
241 if( (!strncmp( name, "no-", 3 ) && (i = 3)) ||
242 (!strncmp( name, "no", 2 ) && (i = 2)) )
245 value = atobool(value) ? "false" : "true";
249 #define OPT(STR) else if( !strcmp( name, STR ) )
250 #define OPT2(STR0, STR1) else if( !strcmp( name, STR0 ) || !strcmp( name, STR1 ) )
254 p->cpu = isdigit(value[0]) ? atoi(value) :
255 !strcmp(value, "auto") || atobool(value) ? x264_cpu_detect() : 0;
258 char *buf = strdup(value);
259 char *tok, UNUSED *saveptr, *init;
262 for( init=buf; (tok=strtok_r(init, ",", &saveptr)); init=NULL )
264 for( i=0; x264_cpu_names[i].flags && strcasecmp(tok, x264_cpu_names[i].name); i++ );
265 p->cpu |= x264_cpu_names[i].flags;
266 if( !x264_cpu_names[i].flags )
274 if( !strcmp(value, "auto") )
275 p->i_threads = X264_THREADS_AUTO;
277 p->i_threads = atoi(value);
279 OPT2("deterministic", "n-deterministic")
280 p->b_deterministic = atobool(value);
281 OPT2("level", "level-idc")
283 if( atof(value) < 6 )
284 p->i_level_idc = (int)(10*atof(value)+.5);
286 p->i_level_idc = atoi(value);
290 b_error = ( 2 != sscanf( value, "%d:%d", &p->vui.i_sar_width, &p->vui.i_sar_height ) &&
291 2 != sscanf( value, "%d/%d", &p->vui.i_sar_width, &p->vui.i_sar_height ) );
294 b_error |= parse_enum( value, x264_overscan_names, &p->vui.i_overscan );
296 b_error |= parse_enum( value, x264_vidformat_names, &p->vui.i_vidformat );
298 b_error |= parse_enum( value, x264_fullrange_names, &p->vui.b_fullrange );
300 b_error |= parse_enum( value, x264_colorprim_names, &p->vui.i_colorprim );
302 b_error |= parse_enum( value, x264_transfer_names, &p->vui.i_transfer );
304 b_error |= parse_enum( value, x264_colmatrix_names, &p->vui.i_colmatrix );
307 p->vui.i_chroma_loc = atoi(value);
308 b_error = ( p->vui.i_chroma_loc < 0 || p->vui.i_chroma_loc > 5 );
312 if( sscanf( value, "%d/%d", &p->i_fps_num, &p->i_fps_den ) == 2 )
316 float fps = atof(value);
317 p->i_fps_num = (int)(fps * 1000 + .5);
321 OPT2("ref", "frameref")
322 p->i_frame_reference = atoi(value);
325 p->i_keyint_max = atoi(value);
326 if( p->i_keyint_min > p->i_keyint_max )
327 p->i_keyint_min = p->i_keyint_max;
329 OPT2("min-keyint", "keyint-min")
331 p->i_keyint_min = atoi(value);
332 if( p->i_keyint_max < p->i_keyint_min )
333 p->i_keyint_max = p->i_keyint_min;
337 p->i_scenecut_threshold = atobool(value);
338 if( b_error || p->i_scenecut_threshold )
341 p->i_scenecut_threshold = atoi(value);
345 p->i_bframe = atoi(value);
348 p->i_bframe_adaptive = atobool(value);
352 p->i_bframe_adaptive = atoi(value);
356 p->i_bframe_bias = atoi(value);
358 p->b_bframe_pyramid = atobool(value);
360 p->b_deblocking_filter = !atobool(value);
361 OPT2("filter", "deblock")
363 if( 2 == sscanf( value, "%d:%d", &p->i_deblocking_filter_alphac0, &p->i_deblocking_filter_beta ) ||
364 2 == sscanf( value, "%d,%d", &p->i_deblocking_filter_alphac0, &p->i_deblocking_filter_beta ) )
366 p->b_deblocking_filter = 1;
368 else if( sscanf( value, "%d", &p->i_deblocking_filter_alphac0 ) )
370 p->b_deblocking_filter = 1;
371 p->i_deblocking_filter_beta = p->i_deblocking_filter_alphac0;
374 p->b_deblocking_filter = atobool(value);
376 OPT("slice-max-size")
377 p->i_slice_max_size = atoi(value);
379 p->i_slice_max_mbs = atoi(value);
381 p->i_slice_count = atoi(value);
383 p->b_cabac = atobool(value);
385 p->i_cabac_init_idc = atoi(value);
387 p->b_interlaced = atobool(value);
390 if( strstr( value, "flat" ) )
391 p->i_cqm_preset = X264_CQM_FLAT;
392 else if( strstr( value, "jvt" ) )
393 p->i_cqm_preset = X264_CQM_JVT;
395 p->psz_cqm_file = strdup(value);
398 p->psz_cqm_file = strdup(value);
401 p->i_cqm_preset = X264_CQM_CUSTOM;
402 b_error |= parse_cqm( value, p->cqm_4iy, 16 );
403 b_error |= parse_cqm( value, p->cqm_4ic, 16 );
404 b_error |= parse_cqm( value, p->cqm_4py, 16 );
405 b_error |= parse_cqm( value, p->cqm_4pc, 16 );
409 p->i_cqm_preset = X264_CQM_CUSTOM;
410 b_error |= parse_cqm( value, p->cqm_8iy, 64 );
411 b_error |= parse_cqm( value, p->cqm_8py, 64 );
415 p->i_cqm_preset = X264_CQM_CUSTOM;
416 b_error |= parse_cqm( value, p->cqm_4iy, 16 );
417 b_error |= parse_cqm( value, p->cqm_4ic, 16 );
421 p->i_cqm_preset = X264_CQM_CUSTOM;
422 b_error |= parse_cqm( value, p->cqm_4py, 16 );
423 b_error |= parse_cqm( value, p->cqm_4pc, 16 );
427 p->i_cqm_preset = X264_CQM_CUSTOM;
428 b_error |= parse_cqm( value, p->cqm_4iy, 16 );
432 p->i_cqm_preset = X264_CQM_CUSTOM;
433 b_error |= parse_cqm( value, p->cqm_4ic, 16 );
437 p->i_cqm_preset = X264_CQM_CUSTOM;
438 b_error |= parse_cqm( value, p->cqm_4py, 16 );
442 p->i_cqm_preset = X264_CQM_CUSTOM;
443 b_error |= parse_cqm( value, p->cqm_4pc, 16 );
447 p->i_cqm_preset = X264_CQM_CUSTOM;
448 b_error |= parse_cqm( value, p->cqm_8iy, 64 );
452 p->i_cqm_preset = X264_CQM_CUSTOM;
453 b_error |= parse_cqm( value, p->cqm_8py, 64 );
456 p->i_log_level = atoi(value);
459 p->b_visualize = atobool(value);
462 p->psz_dump_yuv = strdup(value);
463 OPT2("analyse", "partitions")
465 p->analyse.inter = 0;
466 if( strstr( value, "none" ) ) p->analyse.inter = 0;
467 if( strstr( value, "all" ) ) p->analyse.inter = ~0;
469 if( strstr( value, "i4x4" ) ) p->analyse.inter |= X264_ANALYSE_I4x4;
470 if( strstr( value, "i8x8" ) ) p->analyse.inter |= X264_ANALYSE_I8x8;
471 if( strstr( value, "p8x8" ) ) p->analyse.inter |= X264_ANALYSE_PSUB16x16;
472 if( strstr( value, "p4x4" ) ) p->analyse.inter |= X264_ANALYSE_PSUB8x8;
473 if( strstr( value, "b8x8" ) ) p->analyse.inter |= X264_ANALYSE_BSUB16x16;
476 p->analyse.b_transform_8x8 = atobool(value);
477 OPT2("weightb", "weight-b")
478 p->analyse.b_weighted_bipred = atobool(value);
479 OPT2("direct", "direct-pred")
480 b_error |= parse_enum( value, x264_direct_pred_names, &p->analyse.i_direct_mv_pred );
481 OPT("chroma-qp-offset")
482 p->analyse.i_chroma_qp_offset = atoi(value);
484 b_error |= parse_enum( value, x264_motion_est_names, &p->analyse.i_me_method );
485 OPT2("merange", "me-range")
486 p->analyse.i_me_range = atoi(value);
487 OPT2("mvrange", "mv-range")
488 p->analyse.i_mv_range = atoi(value);
489 OPT2("mvrange-thread", "mv-range-thread")
490 p->analyse.i_mv_range_thread = atoi(value);
491 OPT2("subme", "subq")
492 p->analyse.i_subpel_refine = atoi(value);
495 if( 2 == sscanf( value, "%f:%f", &p->analyse.f_psy_rd, &p->analyse.f_psy_trellis ) ||
496 2 == sscanf( value, "%f,%f", &p->analyse.f_psy_rd, &p->analyse.f_psy_trellis ) )
498 else if( sscanf( value, "%f", &p->analyse.f_psy_rd ) )
500 p->analyse.f_psy_trellis = 0;
504 p->analyse.f_psy_rd = 0;
505 p->analyse.f_psy_trellis = 0;
509 p->analyse.b_psy = atobool(value);
511 p->analyse.b_chroma_me = atobool(value);
513 p->analyse.b_mixed_references = atobool(value);
515 p->analyse.i_trellis = atoi(value);
517 p->analyse.b_fast_pskip = atobool(value);
519 p->analyse.b_dct_decimate = atobool(value);
520 OPT("deadzone-inter")
521 p->analyse.i_luma_deadzone[0] = atoi(value);
522 OPT("deadzone-intra")
523 p->analyse.i_luma_deadzone[1] = atoi(value);
525 p->analyse.i_noise_reduction = atoi(value);
528 p->rc.i_bitrate = atoi(value);
529 p->rc.i_rc_method = X264_RC_ABR;
531 OPT2("qp", "qp_constant")
533 p->rc.i_qp_constant = atoi(value);
534 p->rc.i_rc_method = X264_RC_CQP;
538 p->rc.f_rf_constant = atof(value);
539 p->rc.i_rc_method = X264_RC_CRF;
542 p->rc.i_lookahead = atoi(value);
543 OPT2("qpmin", "qp-min")
544 p->rc.i_qp_min = atoi(value);
545 OPT2("qpmax", "qp-max")
546 p->rc.i_qp_max = atoi(value);
547 OPT2("qpstep", "qp-step")
548 p->rc.i_qp_step = atoi(value);
550 p->rc.f_rate_tolerance = !strncmp("inf", value, 3) ? 1e9 : atof(value);
552 p->rc.i_vbv_max_bitrate = atoi(value);
554 p->rc.i_vbv_buffer_size = atoi(value);
556 p->rc.f_vbv_buffer_init = atof(value);
557 OPT2("ipratio", "ip-factor")
558 p->rc.f_ip_factor = atof(value);
559 OPT2("pbratio", "pb-factor")
560 p->rc.f_pb_factor = atof(value);
562 p->rc.i_aq_mode = atoi(value);
564 p->rc.f_aq_strength = atof(value);
567 int i = x264_clip3( atoi(value), 0, 3 );
568 p->rc.b_stat_write = i & 1;
569 p->rc.b_stat_read = i & 2;
573 p->rc.psz_stat_in = strdup(value);
574 p->rc.psz_stat_out = strdup(value);
577 p->rc.f_qcompress = atof(value);
579 p->rc.b_mb_tree = atobool(value);
581 p->rc.f_qblur = atof(value);
582 OPT2("cplxblur", "cplx-blur")
583 p->rc.f_complexity_blur = atof(value);
585 p->rc.psz_zones = strdup(value);
587 p->analyse.b_psnr = atobool(value);
589 p->analyse.b_ssim = atobool(value);
591 p->b_aud = atobool(value);
593 p->i_sps_id = atoi(value);
595 p->b_repeat_headers = !atobool(value);
596 OPT("repeat-headers")
597 p->b_repeat_headers = atobool(value);
599 return X264_PARAM_BAD_NAME;
609 b_error |= value_was_null && !name_was_bool;
610 return b_error ? X264_PARAM_BAD_VALUE : 0;
613 /****************************************************************************
615 ****************************************************************************/
616 void x264_log( x264_t *h, int i_level, const char *psz_fmt, ... )
618 if( !h || i_level <= h->param.i_log_level )
621 va_start( arg, psz_fmt );
623 x264_log_default( NULL, i_level, psz_fmt, arg );
625 h->param.pf_log( h->param.p_log_private, i_level, psz_fmt, arg );
630 static void x264_log_default( void *p_unused, int i_level, const char *psz_fmt, va_list arg )
636 psz_prefix = "error";
638 case X264_LOG_WARNING:
639 psz_prefix = "warning";
645 psz_prefix = "debug";
648 psz_prefix = "unknown";
651 fprintf( stderr, "x264 [%s]: ", psz_prefix );
652 vfprintf( stderr, psz_fmt, arg );
655 /****************************************************************************
656 * x264_picture_alloc:
657 ****************************************************************************/
658 int x264_picture_alloc( x264_picture_t *pic, int i_csp, int i_width, int i_height )
660 pic->i_type = X264_TYPE_AUTO;
662 pic->img.i_csp = i_csp;
663 pic->img.i_plane = 3;
664 pic->img.plane[0] = x264_malloc( 3 * i_width * i_height / 2 );
665 if( !pic->img.plane[0] )
667 pic->img.plane[1] = pic->img.plane[0] + i_width * i_height;
668 pic->img.plane[2] = pic->img.plane[1] + i_width * i_height / 4;
669 pic->img.i_stride[0] = i_width;
670 pic->img.i_stride[1] = i_width / 2;
671 pic->img.i_stride[2] = i_width / 2;
676 /****************************************************************************
677 * x264_picture_clean:
678 ****************************************************************************/
679 void x264_picture_clean( x264_picture_t *pic )
681 x264_free( pic->img.plane[0] );
683 /* just to be safe */
684 memset( pic, 0, sizeof( x264_picture_t ) );
687 /****************************************************************************
689 ****************************************************************************/
690 int x264_nal_encode( void *p_data, int *pi_data, int b_annexeb, x264_nal_t *nal )
692 uint8_t *dst = p_data;
693 uint8_t *src = nal->p_payload;
694 uint8_t *end = &nal->p_payload[nal->i_payload];
697 /* FIXME this code doesn't check overflow */
701 /* long nal start code (we always use long ones)*/
709 *dst++ = ( 0x00 << 7 ) | ( nal->i_ref_idc << 5 ) | nal->i_type;
713 if( i_count == 2 && *src <= 0x03 )
724 *pi_data = dst - (uint8_t*)p_data;
731 /****************************************************************************
733 ****************************************************************************/
734 void *x264_malloc( int i_size )
736 uint8_t *align_buf = NULL;
738 /* Mac OS X always returns 16 bytes aligned memory */
739 align_buf = malloc( i_size );
740 #elif defined( HAVE_MALLOC_H )
741 align_buf = memalign( 16, i_size );
743 uint8_t *buf = malloc( i_size + 15 + sizeof(void **) + sizeof(int) );
746 align_buf = buf + 15 + sizeof(void **) + sizeof(int);
747 align_buf -= (intptr_t) align_buf & 15;
748 *( (void **) ( align_buf - sizeof(void **) ) ) = buf;
749 *( (int *) ( align_buf - sizeof(void **) - sizeof(int) ) ) = i_size;
753 x264_log( NULL, X264_LOG_ERROR, "malloc of size %d failed\n", i_size );
757 /****************************************************************************
759 ****************************************************************************/
760 void x264_free( void *p )
764 #if defined( HAVE_MALLOC_H ) || defined( SYS_MACOSX )
767 free( *( ( ( void **) p ) - 1 ) );
772 /****************************************************************************
773 * x264_reduce_fraction:
774 ****************************************************************************/
775 void x264_reduce_fraction( int *n, int *d )
793 /****************************************************************************
795 ****************************************************************************/
796 char *x264_slurp_file( const char *filename )
801 FILE *fh = fopen( filename, "rb" );
804 b_error |= fseek( fh, 0, SEEK_END ) < 0;
805 b_error |= ( i_size = ftell( fh ) ) <= 0;
806 b_error |= fseek( fh, 0, SEEK_SET ) < 0;
809 buf = x264_malloc( i_size+2 );
812 b_error |= fread( buf, 1, i_size, fh ) != i_size;
813 if( buf[i_size-1] != '\n' )
814 buf[i_size++] = '\n';
825 /****************************************************************************
827 ****************************************************************************/
828 char *x264_param2string( x264_param_t *p, int b_res )
832 if( p->rc.psz_zones )
833 len += strlen(p->rc.psz_zones);
834 buf = s = x264_malloc( len );
840 s += sprintf( s, "%dx%d ", p->i_width, p->i_height );
841 s += sprintf( s, "fps=%d/%d ", p->i_fps_num, p->i_fps_den );
844 s += sprintf( s, "cabac=%d", p->b_cabac );
845 s += sprintf( s, " ref=%d", p->i_frame_reference );
846 s += sprintf( s, " deblock=%d:%d:%d", p->b_deblocking_filter,
847 p->i_deblocking_filter_alphac0, p->i_deblocking_filter_beta );
848 s += sprintf( s, " analyse=%#x:%#x", p->analyse.intra, p->analyse.inter );
849 s += sprintf( s, " me=%s", x264_motion_est_names[ p->analyse.i_me_method ] );
850 s += sprintf( s, " subme=%d", p->analyse.i_subpel_refine );
851 s += sprintf( s, " psy=%d", p->analyse.b_psy );
852 if( p->analyse.b_psy )
853 s += sprintf( s, " psy_rd=%.1f:%.1f", p->analyse.f_psy_rd, p->analyse.f_psy_trellis );
854 s += sprintf( s, " mixed_ref=%d", p->analyse.b_mixed_references );
855 s += sprintf( s, " me_range=%d", p->analyse.i_me_range );
856 s += sprintf( s, " chroma_me=%d", p->analyse.b_chroma_me );
857 s += sprintf( s, " trellis=%d", p->analyse.i_trellis );
858 s += sprintf( s, " 8x8dct=%d", p->analyse.b_transform_8x8 );
859 s += sprintf( s, " cqm=%d", p->i_cqm_preset );
860 s += sprintf( s, " deadzone=%d,%d", p->analyse.i_luma_deadzone[0], p->analyse.i_luma_deadzone[1] );
861 s += sprintf( s, " chroma_qp_offset=%d", p->analyse.i_chroma_qp_offset );
862 s += sprintf( s, " threads=%d", p->i_threads );
863 if( p->i_slice_count )
864 s += sprintf( s, " slices=%d", p->i_slice_count );
865 if( p->i_slice_max_size )
866 s += sprintf( s, " slice_max_size=%d", p->i_slice_max_size );
867 if( p->i_slice_max_mbs )
868 s += sprintf( s, " slice_max_mbs=%d", p->i_slice_max_mbs );
869 s += sprintf( s, " nr=%d", p->analyse.i_noise_reduction );
870 s += sprintf( s, " decimate=%d", p->analyse.b_dct_decimate );
871 s += sprintf( s, " mbaff=%d", p->b_interlaced );
873 s += sprintf( s, " bframes=%d", p->i_bframe );
876 s += sprintf( s, " b_pyramid=%d b_adapt=%d b_bias=%d direct=%d wpredb=%d",
877 p->b_bframe_pyramid, p->i_bframe_adaptive, p->i_bframe_bias,
878 p->analyse.i_direct_mv_pred, p->analyse.b_weighted_bipred );
881 s += sprintf( s, " keyint=%d keyint_min=%d scenecut=%d",
882 p->i_keyint_max, p->i_keyint_min, p->i_scenecut_threshold );
884 if( p->rc.b_mb_tree || p->rc.i_vbv_buffer_size )
885 s += sprintf( s, " rc_lookahead=%d", p->rc.i_lookahead );
887 s += sprintf( s, " rc=%s mbtree=%d", p->rc.i_rc_method == X264_RC_ABR ?
888 ( p->rc.b_stat_read ? "2pass" : p->rc.i_vbv_buffer_size ? "cbr" : "abr" )
889 : p->rc.i_rc_method == X264_RC_CRF ? "crf" : "cqp", p->rc.b_mb_tree );
890 if( p->rc.i_rc_method == X264_RC_ABR || p->rc.i_rc_method == X264_RC_CRF )
892 if( p->rc.i_rc_method == X264_RC_CRF )
893 s += sprintf( s, " crf=%.1f", p->rc.f_rf_constant );
895 s += sprintf( s, " bitrate=%d ratetol=%.1f",
896 p->rc.i_bitrate, p->rc.f_rate_tolerance );
897 s += sprintf( s, " qcomp=%.2f qpmin=%d qpmax=%d qpstep=%d",
898 p->rc.f_qcompress, p->rc.i_qp_min, p->rc.i_qp_max, p->rc.i_qp_step );
899 if( p->rc.b_stat_read )
900 s += sprintf( s, " cplxblur=%.1f qblur=%.1f",
901 p->rc.f_complexity_blur, p->rc.f_qblur );
902 if( p->rc.i_vbv_buffer_size )
903 s += sprintf( s, " vbv_maxrate=%d vbv_bufsize=%d",
904 p->rc.i_vbv_max_bitrate, p->rc.i_vbv_buffer_size );
906 else if( p->rc.i_rc_method == X264_RC_CQP )
907 s += sprintf( s, " qp=%d", p->rc.i_qp_constant );
908 if( !(p->rc.i_rc_method == X264_RC_CQP && p->rc.i_qp_constant == 0) )
910 s += sprintf( s, " ip_ratio=%.2f", p->rc.f_ip_factor );
911 if( p->i_bframe && !p->rc.b_mb_tree )
912 s += sprintf( s, " pb_ratio=%.2f", p->rc.f_pb_factor );
913 s += sprintf( s, " aq=%d", p->rc.i_aq_mode );
914 if( p->rc.i_aq_mode )
915 s += sprintf( s, ":%.2f", p->rc.f_aq_strength );
916 if( p->rc.psz_zones )
917 s += sprintf( s, " zones=%s", p->rc.psz_zones );
918 else if( p->rc.i_zones )
919 s += sprintf( s, " zones" );