1 /*****************************************************************************
2 * common.c: h264 library
3 *****************************************************************************
4 * Copyright (C) 2003 Laurent Aimar
5 * $Id: common.c,v 1.1 2004/06/03 19:27:06 fenrir Exp $
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
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();
46 param->b_deterministic = 1;
48 /* Video properties */
49 param->i_csp = X264_CSP_I420;
52 param->vui.i_sar_width = 0;
53 param->vui.i_sar_height= 0;
54 param->vui.i_overscan = 0; /* undef */
55 param->vui.i_vidformat = 5; /* undef */
56 param->vui.b_fullrange = 0; /* off */
57 param->vui.i_colorprim = 2; /* undef */
58 param->vui.i_transfer = 2; /* undef */
59 param->vui.i_colmatrix = 2; /* undef */
60 param->vui.i_chroma_loc= 0; /* left center */
61 param->i_fps_num = 25;
63 param->i_level_idc = 51; /* as close to "unrestricted" as we can get */
65 /* Encoder parameters */
66 param->i_frame_reference = 1;
67 param->i_keyint_max = 250;
68 param->i_keyint_min = 25;
70 param->i_scenecut_threshold = 40;
71 param->b_bframe_adaptive = 1;
72 param->i_bframe_bias = 0;
73 param->b_bframe_pyramid = 0;
75 param->b_deblocking_filter = 1;
76 param->i_deblocking_filter_alphac0 = 0;
77 param->i_deblocking_filter_beta = 0;
80 param->i_cabac_init_idc = 0;
82 param->rc.i_rc_method = X264_RC_NONE;
83 param->rc.i_bitrate = 0;
84 param->rc.f_rate_tolerance = 1.0;
85 param->rc.i_vbv_max_bitrate = 0;
86 param->rc.i_vbv_buffer_size = 0;
87 param->rc.f_vbv_buffer_init = 0.9;
88 param->rc.i_qp_constant = 26;
89 param->rc.f_rf_constant = 0;
90 param->rc.i_qp_min = 10;
91 param->rc.i_qp_max = 51;
92 param->rc.i_qp_step = 4;
93 param->rc.f_ip_factor = 1.4;
94 param->rc.f_pb_factor = 1.3;
96 param->rc.b_stat_write = 0;
97 param->rc.psz_stat_out = "x264_2pass.log";
98 param->rc.b_stat_read = 0;
99 param->rc.psz_stat_in = "x264_2pass.log";
100 param->rc.psz_rc_eq = "blurCplx^(1-qComp)";
101 param->rc.f_qcompress = 0.6;
102 param->rc.f_qblur = 0.5;
103 param->rc.f_complexity_blur = 20;
104 param->rc.i_zones = 0;
107 param->pf_log = x264_log_default;
108 param->p_log_private = NULL;
109 param->i_log_level = X264_LOG_INFO;
112 param->analyse.intra = X264_ANALYSE_I4x4 | X264_ANALYSE_I8x8;
113 param->analyse.inter = X264_ANALYSE_I4x4 | X264_ANALYSE_I8x8
114 | X264_ANALYSE_PSUB16x16 | X264_ANALYSE_BSUB16x16;
115 param->analyse.i_direct_mv_pred = X264_DIRECT_PRED_SPATIAL;
116 param->analyse.i_me_method = X264_ME_HEX;
117 param->analyse.i_me_range = 16;
118 param->analyse.i_subpel_refine = 5;
119 param->analyse.b_chroma_me = 1;
120 param->analyse.i_mv_range_thread = -1;
121 param->analyse.i_mv_range = -1; // set from level_idc
122 param->analyse.i_direct_8x8_inference = -1; // set from level_idc
123 param->analyse.i_chroma_qp_offset = 0;
124 param->analyse.b_fast_pskip = 1;
125 param->analyse.b_dct_decimate = 1;
126 param->analyse.i_luma_deadzone[0] = 21;
127 param->analyse.i_luma_deadzone[1] = 11;
128 param->analyse.b_psnr = 1;
129 param->analyse.b_ssim = 1;
131 param->i_cqm_preset = X264_CQM_FLAT;
132 memset( param->cqm_4iy, 16, 16 );
133 memset( param->cqm_4ic, 16, 16 );
134 memset( param->cqm_4py, 16, 16 );
135 memset( param->cqm_4pc, 16, 16 );
136 memset( param->cqm_8iy, 16, 64 );
137 memset( param->cqm_8py, 16, 64 );
139 param->b_repeat_headers = 1;
143 static int parse_enum( const char *arg, const char * const *names, int *dst )
146 for( i = 0; names[i]; i++ )
147 if( !strcmp( arg, names[i] ) )
155 static int parse_cqm( const char *str, uint8_t *cqm, int length )
160 if( !sscanf( str, "%d", &coef ) || coef < 1 || coef > 255 )
163 } while( i < length && (str = strchr( str, ',' )) && str++ );
164 return (i == length) ? 0 : -1;
167 static int x264_atobool( const char *str, int *b_error )
169 if( !strcmp(str, "1") ||
170 !strcmp(str, "true") ||
171 !strcmp(str, "yes") )
173 if( !strcmp(str, "0") ||
174 !strcmp(str, "false") ||
181 static int x264_atoi( const char *str, int *b_error )
184 int v = strtol( str, &end, 0 );
185 if( end == str || *end != '\0' )
190 static double x264_atof( const char *str, int *b_error )
193 double v = strtod( str, &end );
194 if( end == str || *end != '\0' )
199 #define atobool(str) ( name_was_bool = 1, x264_atobool( str, &b_error ) )
200 #define atoi(str) x264_atoi( str, &b_error )
201 #define atof(str) x264_atof( str, &b_error )
203 int x264_param_parse( x264_param_t *p, const char *name, const char *value )
205 char *name_buf = NULL;
208 int value_was_null = !value;
212 return X264_PARAM_BAD_NAME;
216 if( value[0] == '=' )
219 if( strchr( name, '_' ) ) // s/_/-/g
222 name_buf = strdup(name);
223 while( (p = strchr( name_buf, '_' )) )
228 if( (!strncmp( name, "no-", 3 ) && (i = 3)) ||
229 (!strncmp( name, "no", 2 ) && (i = 2)) )
232 value = atobool(value) ? "false" : "true";
236 #define OPT(STR) else if( !strcmp( name, STR ) )
237 #define OPT2(STR0, STR1) else if( !strcmp( name, STR0 ) || !strcmp( name, STR1 ) )
240 p->cpu = atobool(value) ? x264_cpu_detect() : 0;
243 if( !strcmp(value, "auto") )
246 p->i_threads = atoi(value);
248 OPT2("deterministic", "n-deterministic")
249 p->b_deterministic = atobool(value);
250 OPT2("level", "level-idc")
252 if( atof(value) < 6 )
253 p->i_level_idc = (int)(10*atof(value)+.5);
255 p->i_level_idc = atoi(value);
259 b_error = ( 2 != sscanf( value, "%d:%d", &p->vui.i_sar_width, &p->vui.i_sar_height ) &&
260 2 != sscanf( value, "%d/%d", &p->vui.i_sar_width, &p->vui.i_sar_height ) );
263 b_error |= parse_enum( value, x264_overscan_names, &p->vui.i_overscan );
265 b_error |= parse_enum( value, x264_vidformat_names, &p->vui.i_vidformat );
267 b_error |= parse_enum( value, x264_fullrange_names, &p->vui.b_fullrange );
269 b_error |= parse_enum( value, x264_colorprim_names, &p->vui.i_colorprim );
271 b_error |= parse_enum( value, x264_transfer_names, &p->vui.i_transfer );
273 b_error |= parse_enum( value, x264_colmatrix_names, &p->vui.i_colmatrix );
276 p->vui.i_chroma_loc = atoi(value);
277 b_error = ( p->vui.i_chroma_loc < 0 || p->vui.i_chroma_loc > 5 );
281 if( sscanf( value, "%d/%d", &p->i_fps_num, &p->i_fps_den ) == 2 )
285 float fps = atof(value);
286 p->i_fps_num = (int)(fps * 1000 + .5);
290 OPT2("ref", "frameref")
291 p->i_frame_reference = atoi(value);
294 p->i_keyint_max = atoi(value);
295 if( p->i_keyint_min > p->i_keyint_max )
296 p->i_keyint_min = p->i_keyint_max;
298 OPT2("min-keyint", "keyint-min")
300 p->i_keyint_min = atoi(value);
301 if( p->i_keyint_max < p->i_keyint_min )
302 p->i_keyint_max = p->i_keyint_min;
305 p->i_scenecut_threshold = atoi(value);
307 p->b_pre_scenecut = atobool(value);
309 p->i_bframe = atoi(value);
311 p->b_bframe_adaptive = atobool(value);
313 p->i_bframe_bias = atoi(value);
315 p->b_bframe_pyramid = atobool(value);
317 p->b_deblocking_filter = !atobool(value);
318 OPT2("filter", "deblock")
320 if( 2 == sscanf( value, "%d:%d", &p->i_deblocking_filter_alphac0, &p->i_deblocking_filter_beta ) ||
321 2 == sscanf( value, "%d,%d", &p->i_deblocking_filter_alphac0, &p->i_deblocking_filter_beta ) )
323 p->b_deblocking_filter = 1;
325 else if( sscanf( value, "%d", &p->i_deblocking_filter_alphac0 ) )
327 p->b_deblocking_filter = 1;
328 p->i_deblocking_filter_beta = p->i_deblocking_filter_alphac0;
331 p->b_deblocking_filter = atobool(value);
334 p->b_cabac = atobool(value);
336 p->i_cabac_init_idc = atoi(value);
338 p->b_interlaced = atobool(value);
341 if( strstr( value, "flat" ) )
342 p->i_cqm_preset = X264_CQM_FLAT;
343 else if( strstr( value, "jvt" ) )
344 p->i_cqm_preset = X264_CQM_JVT;
346 p->psz_cqm_file = strdup(value);
349 p->psz_cqm_file = strdup(value);
352 p->i_cqm_preset = X264_CQM_CUSTOM;
353 b_error |= parse_cqm( value, p->cqm_4iy, 16 );
354 b_error |= parse_cqm( value, p->cqm_4ic, 16 );
355 b_error |= parse_cqm( value, p->cqm_4py, 16 );
356 b_error |= parse_cqm( value, p->cqm_4pc, 16 );
360 p->i_cqm_preset = X264_CQM_CUSTOM;
361 b_error |= parse_cqm( value, p->cqm_8iy, 64 );
362 b_error |= parse_cqm( value, p->cqm_8py, 64 );
366 p->i_cqm_preset = X264_CQM_CUSTOM;
367 b_error |= parse_cqm( value, p->cqm_4iy, 16 );
368 b_error |= parse_cqm( value, p->cqm_4ic, 16 );
372 p->i_cqm_preset = X264_CQM_CUSTOM;
373 b_error |= parse_cqm( value, p->cqm_4py, 16 );
374 b_error |= parse_cqm( value, p->cqm_4pc, 16 );
378 p->i_cqm_preset = X264_CQM_CUSTOM;
379 b_error |= parse_cqm( value, p->cqm_4iy, 16 );
383 p->i_cqm_preset = X264_CQM_CUSTOM;
384 b_error |= parse_cqm( value, p->cqm_4ic, 16 );
388 p->i_cqm_preset = X264_CQM_CUSTOM;
389 b_error |= parse_cqm( value, p->cqm_4py, 16 );
393 p->i_cqm_preset = X264_CQM_CUSTOM;
394 b_error |= parse_cqm( value, p->cqm_4pc, 16 );
398 p->i_cqm_preset = X264_CQM_CUSTOM;
399 b_error |= parse_cqm( value, p->cqm_8iy, 64 );
403 p->i_cqm_preset = X264_CQM_CUSTOM;
404 b_error |= parse_cqm( value, p->cqm_8py, 64 );
407 p->i_log_level = atoi(value);
410 p->b_visualize = atobool(value);
412 OPT2("analyse", "partitions")
414 p->analyse.inter = 0;
415 if( strstr( value, "none" ) ) p->analyse.inter = 0;
416 if( strstr( value, "all" ) ) p->analyse.inter = ~0;
418 if( strstr( value, "i4x4" ) ) p->analyse.inter |= X264_ANALYSE_I4x4;
419 if( strstr( value, "i8x8" ) ) p->analyse.inter |= X264_ANALYSE_I8x8;
420 if( strstr( value, "p8x8" ) ) p->analyse.inter |= X264_ANALYSE_PSUB16x16;
421 if( strstr( value, "p4x4" ) ) p->analyse.inter |= X264_ANALYSE_PSUB8x8;
422 if( strstr( value, "b8x8" ) ) p->analyse.inter |= X264_ANALYSE_BSUB16x16;
425 p->analyse.b_transform_8x8 = atobool(value);
426 OPT2("weightb", "weight-b")
427 p->analyse.b_weighted_bipred = atobool(value);
428 OPT2("direct", "direct-pred")
429 b_error |= parse_enum( value, x264_direct_pred_names, &p->analyse.i_direct_mv_pred );
431 p->analyse.i_direct_8x8_inference = atoi(value);
432 OPT("chroma-qp-offset")
433 p->analyse.i_chroma_qp_offset = atoi(value);
435 b_error |= parse_enum( value, x264_motion_est_names, &p->analyse.i_me_method );
436 OPT2("merange", "me-range")
437 p->analyse.i_me_range = atoi(value);
438 OPT2("mvrange", "mv-range")
439 p->analyse.i_mv_range = atoi(value);
440 OPT2("mvrange-thread", "mv-range-thread")
441 p->analyse.i_mv_range_thread = atoi(value);
442 OPT2("subme", "subq")
443 p->analyse.i_subpel_refine = atoi(value);
445 p->analyse.b_bidir_me = atobool(value);
447 p->analyse.b_chroma_me = atobool(value);
448 OPT2("b-rdo", "brdo")
449 p->analyse.b_bframe_rdo = atobool(value);
451 p->analyse.b_mixed_references = atobool(value);
453 p->analyse.i_trellis = atoi(value);
455 p->analyse.b_fast_pskip = atobool(value);
457 p->analyse.b_dct_decimate = atobool(value);
458 OPT("deadzone-inter")
459 p->analyse.i_luma_deadzone[0] = atoi(value);
460 OPT("deadzone-intra")
461 p->analyse.i_luma_deadzone[1] = atoi(value);
463 p->analyse.i_noise_reduction = atoi(value);
466 p->rc.i_bitrate = atoi(value);
467 p->rc.i_rc_method = X264_RC_ABR;
469 OPT2("qp", "qp_constant")
471 p->rc.i_qp_constant = atoi(value);
472 p->rc.i_rc_method = X264_RC_CQP;
476 p->rc.f_rf_constant = atof(value);
477 p->rc.i_rc_method = X264_RC_CRF;
479 OPT2("qpmin", "qp-min")
480 p->rc.i_qp_min = atoi(value);
481 OPT2("qpmax", "qp-max")
482 p->rc.i_qp_max = atoi(value);
483 OPT2("qpstep", "qp-step")
484 p->rc.i_qp_step = atoi(value);
486 p->rc.f_rate_tolerance = !strncmp("inf", value, 3) ? 1e9 : atof(value);
488 p->rc.i_vbv_max_bitrate = atoi(value);
490 p->rc.i_vbv_buffer_size = atoi(value);
492 p->rc.f_vbv_buffer_init = atof(value);
493 OPT2("ipratio", "ip-factor")
494 p->rc.f_ip_factor = atof(value);
495 OPT2("pbratio", "pb-factor")
496 p->rc.f_pb_factor = atof(value);
499 int i = x264_clip3( atoi(value), 0, 3 );
500 p->rc.b_stat_write = i & 1;
501 p->rc.b_stat_read = i & 2;
505 p->rc.psz_stat_in = strdup(value);
506 p->rc.psz_stat_out = strdup(value);
509 p->rc.psz_rc_eq = strdup(value);
511 p->rc.f_qcompress = atof(value);
513 p->rc.f_qblur = atof(value);
514 OPT2("cplxblur", "cplx-blur")
515 p->rc.f_complexity_blur = atof(value);
517 p->rc.psz_zones = strdup(value);
519 p->analyse.b_psnr = atobool(value);
521 p->analyse.b_ssim = atobool(value);
523 p->b_aud = atobool(value);
525 p->i_sps_id = atoi(value);
527 p->b_repeat_headers = !atobool(value);
528 OPT("repeat-headers")
529 p->b_repeat_headers = atobool(value);
531 return X264_PARAM_BAD_NAME;
541 b_error |= value_was_null && !name_was_bool;
542 return b_error ? X264_PARAM_BAD_VALUE : 0;
545 /****************************************************************************
547 ****************************************************************************/
548 void x264_log( x264_t *h, int i_level, const char *psz_fmt, ... )
550 if( i_level <= h->param.i_log_level )
553 va_start( arg, psz_fmt );
554 h->param.pf_log( h->param.p_log_private, i_level, psz_fmt, arg );
559 static void x264_log_default( void *p_unused, int i_level, const char *psz_fmt, va_list arg )
565 psz_prefix = "error";
567 case X264_LOG_WARNING:
568 psz_prefix = "warning";
574 psz_prefix = "debug";
577 psz_prefix = "unknown";
580 fprintf( stderr, "x264 [%s]: ", psz_prefix );
581 vfprintf( stderr, psz_fmt, arg );
584 /****************************************************************************
585 * x264_picture_alloc:
586 ****************************************************************************/
587 void x264_picture_alloc( x264_picture_t *pic, int i_csp, int i_width, int i_height )
589 pic->i_type = X264_TYPE_AUTO;
591 pic->img.i_csp = i_csp;
592 pic->img.i_plane = 3;
593 pic->img.plane[0] = x264_malloc( 3 * i_width * i_height / 2 );
594 pic->img.plane[1] = pic->img.plane[0] + i_width * i_height;
595 pic->img.plane[2] = pic->img.plane[1] + i_width * i_height / 4;
596 pic->img.i_stride[0] = i_width;
597 pic->img.i_stride[1] = i_width / 2;
598 pic->img.i_stride[2] = i_width / 2;
601 /****************************************************************************
602 * x264_picture_clean:
603 ****************************************************************************/
604 void x264_picture_clean( x264_picture_t *pic )
606 x264_free( pic->img.plane[0] );
608 /* just to be safe */
609 memset( pic, 0, sizeof( x264_picture_t ) );
612 /****************************************************************************
614 ****************************************************************************/
615 int x264_nal_encode( void *p_data, int *pi_data, int b_annexeb, x264_nal_t *nal )
617 uint8_t *dst = p_data;
618 uint8_t *src = nal->p_payload;
619 uint8_t *end = &nal->p_payload[nal->i_payload];
623 /* FIXME this code doesn't check overflow */
627 /* long nal start code (we always use long ones)*/
635 *dst++ = ( 0x00 << 7 ) | ( nal->i_ref_idc << 5 ) | nal->i_type;
639 if( i_count == 2 && *src <= 0x03 )
654 *pi_data = dst - (uint8_t*)p_data;
659 /****************************************************************************
661 ****************************************************************************/
662 int x264_nal_decode( x264_nal_t *nal, void *p_data, int i_data )
664 uint8_t *src = p_data;
665 uint8_t *end = &src[i_data];
666 uint8_t *dst = nal->p_payload;
668 nal->i_type = src[0]&0x1f;
669 nal->i_ref_idc = (src[0] >> 5)&0x03;
675 if( src < end - 3 && src[0] == 0x00 && src[1] == 0x00 && src[2] == 0x03 )
686 nal->i_payload = dst - (uint8_t*)p_data;
692 /****************************************************************************
694 ****************************************************************************/
695 void *x264_malloc( int i_size )
698 /* Mac OS X always returns 16 bytes aligned memory */
699 return malloc( i_size );
700 #elif defined( HAVE_MALLOC_H )
701 return memalign( 16, i_size );
705 buf = (uint8_t *) malloc( i_size + 15 + sizeof( void ** ) +
707 align_buf = buf + 15 + sizeof( void ** ) + sizeof( int );
708 align_buf -= (long) align_buf & 15;
709 *( (void **) ( align_buf - sizeof( void ** ) ) ) = buf;
710 *( (int *) ( align_buf - sizeof( void ** ) - sizeof( int ) ) ) = i_size;
715 /****************************************************************************
717 ****************************************************************************/
718 void x264_free( void *p )
722 #if defined( HAVE_MALLOC_H ) || defined( SYS_MACOSX )
725 free( *( ( ( void **) p ) - 1 ) );
730 /****************************************************************************
732 ****************************************************************************/
733 void *x264_realloc( void *p, int i_size )
736 return realloc( p, i_size );
742 i_old_size = *( (int*) ( (uint8_t*) p ) - sizeof( void ** ) -
745 p_new = x264_malloc( i_size );
746 if( i_old_size > 0 && i_size > 0 )
748 memcpy( p_new, p, ( i_old_size < i_size ) ? i_old_size : i_size );
755 /****************************************************************************
756 * x264_reduce_fraction:
757 ****************************************************************************/
758 void x264_reduce_fraction( int *n, int *d )
776 /****************************************************************************
778 ****************************************************************************/
779 char *x264_slurp_file( const char *filename )
784 FILE *fh = fopen( filename, "rb" );
787 b_error |= fseek( fh, 0, SEEK_END ) < 0;
788 b_error |= ( i_size = ftell( fh ) ) <= 0;
789 b_error |= fseek( fh, 0, SEEK_SET ) < 0;
792 buf = x264_malloc( i_size+2 );
795 b_error |= fread( buf, 1, i_size, fh ) != i_size;
796 if( buf[i_size-1] != '\n' )
797 buf[i_size++] = '\n';
808 /****************************************************************************
810 ****************************************************************************/
811 char *x264_param2string( x264_param_t *p, int b_res )
815 if( p->rc.psz_zones )
816 len += strlen(p->rc.psz_zones);
817 buf = s = x264_malloc( len );
821 s += sprintf( s, "%dx%d ", p->i_width, p->i_height );
822 s += sprintf( s, "fps=%d/%d ", p->i_fps_num, p->i_fps_den );
825 s += sprintf( s, "cabac=%d", p->b_cabac );
826 s += sprintf( s, " ref=%d", p->i_frame_reference );
827 s += sprintf( s, " deblock=%d:%d:%d", p->b_deblocking_filter,
828 p->i_deblocking_filter_alphac0, p->i_deblocking_filter_beta );
829 s += sprintf( s, " analyse=%#x:%#x", p->analyse.intra, p->analyse.inter );
830 s += sprintf( s, " me=%s", x264_motion_est_names[ p->analyse.i_me_method ] );
831 s += sprintf( s, " subme=%d", p->analyse.i_subpel_refine );
832 s += sprintf( s, " brdo=%d", p->analyse.b_bframe_rdo );
833 s += sprintf( s, " mixed_ref=%d", p->analyse.b_mixed_references );
834 s += sprintf( s, " me_range=%d", p->analyse.i_me_range );
835 s += sprintf( s, " chroma_me=%d", p->analyse.b_chroma_me );
836 s += sprintf( s, " trellis=%d", p->analyse.i_trellis );
837 s += sprintf( s, " 8x8dct=%d", p->analyse.b_transform_8x8 );
838 s += sprintf( s, " cqm=%d", p->i_cqm_preset );
839 s += sprintf( s, " deadzone=%d,%d", p->analyse.i_luma_deadzone[0], p->analyse.i_luma_deadzone[1] );
840 s += sprintf( s, " chroma_qp_offset=%d", p->analyse.i_chroma_qp_offset );
841 s += sprintf( s, " threads=%d", p->i_threads );
842 s += sprintf( s, " nr=%d", p->analyse.i_noise_reduction );
843 s += sprintf( s, " decimate=%d", p->analyse.b_dct_decimate );
844 s += sprintf( s, " mbaff=%d", p->b_interlaced );
846 s += sprintf( s, " bframes=%d", p->i_bframe );
849 s += sprintf( s, " b_pyramid=%d b_adapt=%d b_bias=%d direct=%d wpredb=%d bime=%d",
850 p->b_bframe_pyramid, p->b_bframe_adaptive, p->i_bframe_bias,
851 p->analyse.i_direct_mv_pred, p->analyse.b_weighted_bipred,
852 p->analyse.b_bidir_me );
855 s += sprintf( s, " keyint=%d keyint_min=%d scenecut=%d%s",
856 p->i_keyint_max, p->i_keyint_min, p->i_scenecut_threshold,
857 p->b_pre_scenecut ? "(pre)" : "" );
859 s += sprintf( s, " rc=%s", p->rc.i_rc_method == X264_RC_ABR ?
860 ( p->rc.b_stat_read ? "2pass" : p->rc.i_vbv_buffer_size ? "cbr" : "abr" )
861 : p->rc.i_rc_method == X264_RC_CRF ? "crf" : "cqp" );
862 if( p->rc.i_rc_method == X264_RC_ABR || p->rc.i_rc_method == X264_RC_CRF )
864 if( p->rc.i_rc_method == X264_RC_CRF )
865 s += sprintf( s, " crf=%.1f", p->rc.f_rf_constant );
867 s += sprintf( s, " bitrate=%d ratetol=%.1f",
868 p->rc.i_bitrate, p->rc.f_rate_tolerance );
869 s += sprintf( s, " rceq='%s' qcomp=%.2f qpmin=%d qpmax=%d qpstep=%d",
870 p->rc.psz_rc_eq, p->rc.f_qcompress,
871 p->rc.i_qp_min, p->rc.i_qp_max, p->rc.i_qp_step );
872 if( p->rc.b_stat_read )
873 s += sprintf( s, " cplxblur=%.1f qblur=%.1f",
874 p->rc.f_complexity_blur, p->rc.f_qblur );
875 if( p->rc.i_vbv_buffer_size )
876 s += sprintf( s, " vbv_maxrate=%d vbv_bufsize=%d",
877 p->rc.i_vbv_max_bitrate, p->rc.i_vbv_buffer_size );
879 else if( p->rc.i_rc_method == X264_RC_CQP )
880 s += sprintf( s, " qp=%d", p->rc.i_qp_constant );
881 if( !(p->rc.i_rc_method == X264_RC_CQP && p->rc.i_qp_constant == 0) )
883 s += sprintf( s, " ip_ratio=%.2f", p->rc.f_ip_factor );
885 s += sprintf( s, " pb_ratio=%.2f", p->rc.f_pb_factor );
886 if( p->rc.psz_zones )
887 s += sprintf( s, " zones=%s", p->rc.psz_zones );
888 else if( p->rc.i_zones )
889 s += sprintf( s, " zones" );