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;
48 param->i_sync_lookahead = X264_SYNC_LOOKAHEAD_AUTO;
50 /* Video properties */
51 param->i_csp = X264_CSP_I420;
54 param->vui.i_sar_width = 0;
55 param->vui.i_sar_height= 0;
56 param->vui.i_overscan = 0; /* undef */
57 param->vui.i_vidformat = 5; /* undef */
58 param->vui.b_fullrange = 0; /* off */
59 param->vui.i_colorprim = 2; /* undef */
60 param->vui.i_transfer = 2; /* undef */
61 param->vui.i_colmatrix = 2; /* undef */
62 param->vui.i_chroma_loc= 0; /* left center */
63 param->i_fps_num = 25;
65 param->i_level_idc = -1;
66 param->i_slice_max_size = 0;
67 param->i_slice_max_mbs = 0;
68 param->i_slice_count = 0;
70 /* Encoder parameters */
71 param->i_frame_reference = 3;
72 param->i_keyint_max = 250;
73 param->i_keyint_min = 25;
75 param->i_scenecut_threshold = 40;
76 param->i_bframe_adaptive = X264_B_ADAPT_FAST;
77 param->i_bframe_bias = 0;
78 param->i_bframe_pyramid = 0;
79 param->b_interlaced = 0;
80 param->b_constrained_intra = 0;
82 param->b_deblocking_filter = 1;
83 param->i_deblocking_filter_alphac0 = 0;
84 param->i_deblocking_filter_beta = 0;
87 param->i_cabac_init_idc = 0;
89 param->rc.i_rc_method = X264_RC_CRF;
90 param->rc.i_bitrate = 0;
91 param->rc.f_rate_tolerance = 1.0;
92 param->rc.i_vbv_max_bitrate = 0;
93 param->rc.i_vbv_buffer_size = 0;
94 param->rc.f_vbv_buffer_init = 0.9;
95 param->rc.i_qp_constant = 23;
96 param->rc.f_rf_constant = 23;
97 param->rc.i_qp_min = 10;
98 param->rc.i_qp_max = 51;
99 param->rc.i_qp_step = 4;
100 param->rc.f_ip_factor = 1.4;
101 param->rc.f_pb_factor = 1.3;
102 param->rc.i_aq_mode = X264_AQ_VARIANCE;
103 param->rc.f_aq_strength = 1.0;
104 param->rc.i_lookahead = 40;
106 param->rc.b_stat_write = 0;
107 param->rc.psz_stat_out = "x264_2pass.log";
108 param->rc.b_stat_read = 0;
109 param->rc.psz_stat_in = "x264_2pass.log";
110 param->rc.f_qcompress = 0.6;
111 param->rc.f_qblur = 0.5;
112 param->rc.f_complexity_blur = 20;
113 param->rc.i_zones = 0;
114 param->rc.b_mb_tree = 1;
117 param->pf_log = x264_log_default;
118 param->p_log_private = NULL;
119 param->i_log_level = X264_LOG_INFO;
122 param->analyse.intra = X264_ANALYSE_I4x4 | X264_ANALYSE_I8x8;
123 param->analyse.inter = X264_ANALYSE_I4x4 | X264_ANALYSE_I8x8
124 | X264_ANALYSE_PSUB16x16 | X264_ANALYSE_BSUB16x16;
125 param->analyse.i_direct_mv_pred = X264_DIRECT_PRED_SPATIAL;
126 param->analyse.i_me_method = X264_ME_HEX;
127 param->analyse.f_psy_rd = 1.0;
128 param->analyse.b_psy = 1;
129 param->analyse.f_psy_trellis = 0;
130 param->analyse.i_me_range = 16;
131 param->analyse.i_subpel_refine = 7;
132 param->analyse.b_mixed_references = 1;
133 param->analyse.b_chroma_me = 1;
134 param->analyse.i_mv_range_thread = -1;
135 param->analyse.i_mv_range = -1; // set from level_idc
136 param->analyse.i_chroma_qp_offset = 0;
137 param->analyse.b_fast_pskip = 1;
138 param->analyse.b_weighted_bipred = 1;
139 param->analyse.i_weighted_pred = X264_WEIGHTP_SMART;
140 param->analyse.b_dct_decimate = 1;
141 param->analyse.b_transform_8x8 = 1;
142 param->analyse.i_trellis = 1;
143 param->analyse.i_luma_deadzone[0] = 21;
144 param->analyse.i_luma_deadzone[1] = 11;
145 param->analyse.b_psnr = 0;
146 param->analyse.b_ssim = 0;
148 param->i_cqm_preset = X264_CQM_FLAT;
149 memset( param->cqm_4iy, 16, 16 );
150 memset( param->cqm_4ic, 16, 16 );
151 memset( param->cqm_4py, 16, 16 );
152 memset( param->cqm_4pc, 16, 16 );
153 memset( param->cqm_8iy, 16, 64 );
154 memset( param->cqm_8py, 16, 64 );
156 param->b_repeat_headers = 1;
159 param->b_vfr_input = 1;
160 param->b_dts_compress = 0;
163 static int parse_enum( const char *arg, const char * const *names, int *dst )
166 for( i = 0; names[i]; i++ )
167 if( !strcmp( arg, names[i] ) )
175 static int parse_cqm( const char *str, uint8_t *cqm, int length )
180 if( !sscanf( str, "%d", &coef ) || coef < 1 || coef > 255 )
183 } while( i < length && (str = strchr( str, ',' )) && str++ );
184 return (i == length) ? 0 : -1;
187 static int x264_atobool( const char *str, int *b_error )
189 if( !strcmp(str, "1") ||
190 !strcmp(str, "true") ||
191 !strcmp(str, "yes") )
193 if( !strcmp(str, "0") ||
194 !strcmp(str, "false") ||
201 static int x264_atoi( const char *str, int *b_error )
204 int v = strtol( str, &end, 0 );
205 if( end == str || *end != '\0' )
210 static double x264_atof( const char *str, int *b_error )
213 double v = strtod( str, &end );
214 if( end == str || *end != '\0' )
219 #define atobool(str) ( name_was_bool = 1, x264_atobool( str, &b_error ) )
220 #define atoi(str) x264_atoi( str, &b_error )
221 #define atof(str) x264_atof( str, &b_error )
223 int x264_param_parse( x264_param_t *p, const char *name, const char *value )
225 char *name_buf = NULL;
228 int value_was_null = !value;
232 return X264_PARAM_BAD_NAME;
236 if( value[0] == '=' )
239 if( strchr( name, '_' ) ) // s/_/-/g
242 name_buf = strdup(name);
243 while( (p = strchr( name_buf, '_' )) )
248 if( (!strncmp( name, "no-", 3 ) && (i = 3)) ||
249 (!strncmp( name, "no", 2 ) && (i = 2)) )
252 value = atobool(value) ? "false" : "true";
256 #define OPT(STR) else if( !strcmp( name, STR ) )
257 #define OPT2(STR0, STR1) else if( !strcmp( name, STR0 ) || !strcmp( name, STR1 ) )
261 p->cpu = isdigit(value[0]) ? atoi(value) :
262 !strcmp(value, "auto") || atobool(value) ? x264_cpu_detect() : 0;
265 char *buf = strdup(value);
266 char *tok, UNUSED *saveptr, *init;
269 for( init=buf; (tok=strtok_r(init, ",", &saveptr)); init=NULL )
271 for( i=0; x264_cpu_names[i].flags && strcasecmp(tok, x264_cpu_names[i].name); i++ );
272 p->cpu |= x264_cpu_names[i].flags;
273 if( !x264_cpu_names[i].flags )
281 if( !strcmp(value, "auto") )
282 p->i_threads = X264_THREADS_AUTO;
284 p->i_threads = atoi(value);
286 OPT("sliced-threads")
287 p->b_sliced_threads = atobool(value);
288 OPT("sync-lookahead")
290 if( !strcmp(value, "auto") )
291 p->i_sync_lookahead = X264_SYNC_LOOKAHEAD_AUTO;
293 p->i_sync_lookahead = atoi(value);
295 OPT2("deterministic", "n-deterministic")
296 p->b_deterministic = atobool(value);
297 OPT2("level", "level-idc")
299 if( atof(value) < 6 )
300 p->i_level_idc = (int)(10*atof(value)+.5);
302 p->i_level_idc = atoi(value);
306 b_error = ( 2 != sscanf( value, "%d:%d", &p->vui.i_sar_width, &p->vui.i_sar_height ) &&
307 2 != sscanf( value, "%d/%d", &p->vui.i_sar_width, &p->vui.i_sar_height ) );
310 b_error |= parse_enum( value, x264_overscan_names, &p->vui.i_overscan );
312 b_error |= parse_enum( value, x264_vidformat_names, &p->vui.i_vidformat );
314 b_error |= parse_enum( value, x264_fullrange_names, &p->vui.b_fullrange );
316 b_error |= parse_enum( value, x264_colorprim_names, &p->vui.i_colorprim );
318 b_error |= parse_enum( value, x264_transfer_names, &p->vui.i_transfer );
320 b_error |= parse_enum( value, x264_colmatrix_names, &p->vui.i_colmatrix );
323 p->vui.i_chroma_loc = atoi(value);
324 b_error = ( p->vui.i_chroma_loc < 0 || p->vui.i_chroma_loc > 5 );
328 if( sscanf( value, "%d/%d", &p->i_fps_num, &p->i_fps_den ) == 2 )
332 float fps = atof(value);
333 p->i_fps_num = (int)(fps * 1000 + .5);
337 OPT2("ref", "frameref")
338 p->i_frame_reference = atoi(value);
341 p->i_keyint_max = atoi(value);
342 if( p->i_keyint_min > p->i_keyint_max )
343 p->i_keyint_min = p->i_keyint_max;
345 OPT2("min-keyint", "keyint-min")
347 p->i_keyint_min = atoi(value);
348 if( p->i_keyint_max < p->i_keyint_min )
349 p->i_keyint_max = p->i_keyint_min;
353 p->i_scenecut_threshold = atobool(value);
354 if( b_error || p->i_scenecut_threshold )
357 p->i_scenecut_threshold = atoi(value);
361 p->b_intra_refresh = atobool(value);
363 p->i_bframe = atoi(value);
366 p->i_bframe_adaptive = atobool(value);
370 p->i_bframe_adaptive = atoi(value);
374 p->i_bframe_bias = atoi(value);
376 b_error |= parse_enum( value, x264_b_pyramid_names, &p->i_bframe_pyramid );
378 p->b_deblocking_filter = !atobool(value);
379 OPT2("filter", "deblock")
381 if( 2 == sscanf( value, "%d:%d", &p->i_deblocking_filter_alphac0, &p->i_deblocking_filter_beta ) ||
382 2 == sscanf( value, "%d,%d", &p->i_deblocking_filter_alphac0, &p->i_deblocking_filter_beta ) )
384 p->b_deblocking_filter = 1;
386 else if( sscanf( value, "%d", &p->i_deblocking_filter_alphac0 ) )
388 p->b_deblocking_filter = 1;
389 p->i_deblocking_filter_beta = p->i_deblocking_filter_alphac0;
392 p->b_deblocking_filter = atobool(value);
394 OPT("slice-max-size")
395 p->i_slice_max_size = atoi(value);
397 p->i_slice_max_mbs = atoi(value);
399 p->i_slice_count = atoi(value);
401 p->b_cabac = atobool(value);
403 p->i_cabac_init_idc = atoi(value);
405 p->b_interlaced = atobool(value);
406 OPT("constrained-intra")
407 p->b_constrained_intra = atobool(value);
410 if( strstr( value, "flat" ) )
411 p->i_cqm_preset = X264_CQM_FLAT;
412 else if( strstr( value, "jvt" ) )
413 p->i_cqm_preset = X264_CQM_JVT;
415 p->psz_cqm_file = strdup(value);
418 p->psz_cqm_file = strdup(value);
421 p->i_cqm_preset = X264_CQM_CUSTOM;
422 b_error |= parse_cqm( value, p->cqm_4iy, 16 );
423 b_error |= parse_cqm( value, p->cqm_4ic, 16 );
424 b_error |= parse_cqm( value, p->cqm_4py, 16 );
425 b_error |= parse_cqm( value, p->cqm_4pc, 16 );
429 p->i_cqm_preset = X264_CQM_CUSTOM;
430 b_error |= parse_cqm( value, p->cqm_8iy, 64 );
431 b_error |= parse_cqm( value, p->cqm_8py, 64 );
435 p->i_cqm_preset = X264_CQM_CUSTOM;
436 b_error |= parse_cqm( value, p->cqm_4iy, 16 );
437 b_error |= parse_cqm( value, p->cqm_4ic, 16 );
441 p->i_cqm_preset = X264_CQM_CUSTOM;
442 b_error |= parse_cqm( value, p->cqm_4py, 16 );
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_4iy, 16 );
452 p->i_cqm_preset = X264_CQM_CUSTOM;
453 b_error |= parse_cqm( value, p->cqm_4ic, 16 );
457 p->i_cqm_preset = X264_CQM_CUSTOM;
458 b_error |= parse_cqm( value, p->cqm_4py, 16 );
462 p->i_cqm_preset = X264_CQM_CUSTOM;
463 b_error |= parse_cqm( value, p->cqm_4pc, 16 );
467 p->i_cqm_preset = X264_CQM_CUSTOM;
468 b_error |= parse_cqm( value, p->cqm_8iy, 64 );
472 p->i_cqm_preset = X264_CQM_CUSTOM;
473 b_error |= parse_cqm( value, p->cqm_8py, 64 );
476 p->i_log_level = atoi(value);
479 p->b_visualize = atobool(value);
482 p->psz_dump_yuv = strdup(value);
483 OPT2("analyse", "partitions")
485 p->analyse.inter = 0;
486 if( strstr( value, "none" ) ) p->analyse.inter = 0;
487 if( strstr( value, "all" ) ) p->analyse.inter = ~0;
489 if( strstr( value, "i4x4" ) ) p->analyse.inter |= X264_ANALYSE_I4x4;
490 if( strstr( value, "i8x8" ) ) p->analyse.inter |= X264_ANALYSE_I8x8;
491 if( strstr( value, "p8x8" ) ) p->analyse.inter |= X264_ANALYSE_PSUB16x16;
492 if( strstr( value, "p4x4" ) ) p->analyse.inter |= X264_ANALYSE_PSUB8x8;
493 if( strstr( value, "b8x8" ) ) p->analyse.inter |= X264_ANALYSE_BSUB16x16;
496 p->analyse.b_transform_8x8 = atobool(value);
497 OPT2("weightb", "weight-b")
498 p->analyse.b_weighted_bipred = atobool(value);
500 p->analyse.i_weighted_pred = atoi(value);
501 OPT2("direct", "direct-pred")
502 b_error |= parse_enum( value, x264_direct_pred_names, &p->analyse.i_direct_mv_pred );
503 OPT("chroma-qp-offset")
504 p->analyse.i_chroma_qp_offset = atoi(value);
506 b_error |= parse_enum( value, x264_motion_est_names, &p->analyse.i_me_method );
507 OPT2("merange", "me-range")
508 p->analyse.i_me_range = atoi(value);
509 OPT2("mvrange", "mv-range")
510 p->analyse.i_mv_range = atoi(value);
511 OPT2("mvrange-thread", "mv-range-thread")
512 p->analyse.i_mv_range_thread = atoi(value);
513 OPT2("subme", "subq")
514 p->analyse.i_subpel_refine = atoi(value);
517 if( 2 == sscanf( value, "%f:%f", &p->analyse.f_psy_rd, &p->analyse.f_psy_trellis ) ||
518 2 == sscanf( value, "%f,%f", &p->analyse.f_psy_rd, &p->analyse.f_psy_trellis ) )
520 else if( sscanf( value, "%f", &p->analyse.f_psy_rd ) )
522 p->analyse.f_psy_trellis = 0;
526 p->analyse.f_psy_rd = 0;
527 p->analyse.f_psy_trellis = 0;
531 p->analyse.b_psy = atobool(value);
533 p->analyse.b_chroma_me = atobool(value);
535 p->analyse.b_mixed_references = atobool(value);
537 p->analyse.i_trellis = atoi(value);
539 p->analyse.b_fast_pskip = atobool(value);
541 p->analyse.b_dct_decimate = atobool(value);
542 OPT("deadzone-inter")
543 p->analyse.i_luma_deadzone[0] = atoi(value);
544 OPT("deadzone-intra")
545 p->analyse.i_luma_deadzone[1] = atoi(value);
547 p->analyse.i_noise_reduction = atoi(value);
550 p->rc.i_bitrate = atoi(value);
551 p->rc.i_rc_method = X264_RC_ABR;
553 OPT2("qp", "qp_constant")
555 p->rc.i_qp_constant = atoi(value);
556 p->rc.i_rc_method = X264_RC_CQP;
560 p->rc.f_rf_constant = atof(value);
561 p->rc.i_rc_method = X264_RC_CRF;
564 p->rc.i_lookahead = atoi(value);
565 OPT2("qpmin", "qp-min")
566 p->rc.i_qp_min = atoi(value);
567 OPT2("qpmax", "qp-max")
568 p->rc.i_qp_max = atoi(value);
569 OPT2("qpstep", "qp-step")
570 p->rc.i_qp_step = atoi(value);
572 p->rc.f_rate_tolerance = !strncmp("inf", value, 3) ? 1e9 : atof(value);
574 p->rc.i_vbv_max_bitrate = atoi(value);
576 p->rc.i_vbv_buffer_size = atoi(value);
578 p->rc.f_vbv_buffer_init = atof(value);
579 OPT2("ipratio", "ip-factor")
580 p->rc.f_ip_factor = atof(value);
581 OPT2("pbratio", "pb-factor")
582 p->rc.f_pb_factor = atof(value);
584 p->rc.i_aq_mode = atoi(value);
586 p->rc.f_aq_strength = atof(value);
589 int i = x264_clip3( atoi(value), 0, 3 );
590 p->rc.b_stat_write = i & 1;
591 p->rc.b_stat_read = i & 2;
595 p->rc.psz_stat_in = strdup(value);
596 p->rc.psz_stat_out = strdup(value);
599 p->rc.f_qcompress = atof(value);
601 p->rc.b_mb_tree = atobool(value);
603 p->rc.f_qblur = atof(value);
604 OPT2("cplxblur", "cplx-blur")
605 p->rc.f_complexity_blur = atof(value);
607 p->rc.psz_zones = strdup(value);
609 p->analyse.b_psnr = atobool(value);
611 p->analyse.b_ssim = atobool(value);
613 p->b_aud = atobool(value);
615 p->i_sps_id = atoi(value);
617 p->b_repeat_headers = !atobool(value);
618 OPT("repeat-headers")
619 p->b_repeat_headers = atobool(value);
621 p->b_annexb = atobool(value);
623 p->b_vfr_input = !atobool(value);
625 return X264_PARAM_BAD_NAME;
635 b_error |= value_was_null && !name_was_bool;
636 return b_error ? X264_PARAM_BAD_VALUE : 0;
639 /****************************************************************************
641 ****************************************************************************/
642 void x264_log( x264_t *h, int i_level, const char *psz_fmt, ... )
644 if( !h || i_level <= h->param.i_log_level )
647 va_start( arg, psz_fmt );
649 x264_log_default( NULL, i_level, psz_fmt, arg );
651 h->param.pf_log( h->param.p_log_private, i_level, psz_fmt, arg );
656 static void x264_log_default( void *p_unused, int i_level, const char *psz_fmt, va_list arg )
662 psz_prefix = "error";
664 case X264_LOG_WARNING:
665 psz_prefix = "warning";
671 psz_prefix = "debug";
674 psz_prefix = "unknown";
677 fprintf( stderr, "x264 [%s]: ", psz_prefix );
678 vfprintf( stderr, psz_fmt, arg );
681 /****************************************************************************
682 * x264_picture_alloc:
683 ****************************************************************************/
684 int x264_picture_alloc( x264_picture_t *pic, int i_csp, int i_width, int i_height )
686 pic->i_type = X264_TYPE_AUTO;
688 pic->img.i_csp = i_csp;
689 pic->img.i_plane = 3;
690 pic->img.plane[0] = x264_malloc( 3 * i_width * i_height / 2 );
691 if( !pic->img.plane[0] )
693 pic->img.plane[1] = pic->img.plane[0] + i_width * i_height;
694 pic->img.plane[2] = pic->img.plane[1] + i_width * i_height / 4;
695 pic->img.i_stride[0] = i_width;
696 pic->img.i_stride[1] = i_width / 2;
697 pic->img.i_stride[2] = i_width / 2;
702 /****************************************************************************
703 * x264_picture_clean:
704 ****************************************************************************/
705 void x264_picture_clean( x264_picture_t *pic )
707 x264_free( pic->img.plane[0] );
709 /* just to be safe */
710 memset( pic, 0, sizeof( x264_picture_t ) );
713 /****************************************************************************
715 ****************************************************************************/
716 int x264_nal_encode( uint8_t *dst, int b_annexb, x264_nal_t *nal )
718 uint8_t *src = nal->p_payload;
719 uint8_t *end = nal->p_payload + nal->i_payload;
720 uint8_t *orig_dst = dst;
721 int i_count = 0, size;
723 /* long nal start code (we always use long ones) */
731 else /* save room for size later */
735 *dst++ = ( 0x00 << 7 ) | ( nal->i_ref_idc << 5 ) | nal->i_type;
739 if( i_count == 2 && *src <= 0x03 )
750 size = (dst - orig_dst) - 4;
752 /* Write the size header for mp4/etc */
755 /* Size doesn't include the size of the header we're writing now. */
756 orig_dst[0] = size>>24;
757 orig_dst[1] = size>>16;
758 orig_dst[2] = size>> 8;
759 orig_dst[3] = size>> 0;
767 /****************************************************************************
769 ****************************************************************************/
770 void *x264_malloc( int i_size )
772 uint8_t *align_buf = NULL;
774 /* Mac OS X always returns 16 bytes aligned memory */
775 align_buf = malloc( i_size );
776 #elif defined( HAVE_MALLOC_H )
777 align_buf = memalign( 16, i_size );
779 uint8_t *buf = malloc( i_size + 15 + sizeof(void **) + sizeof(int) );
782 align_buf = buf + 15 + sizeof(void **) + sizeof(int);
783 align_buf -= (intptr_t) align_buf & 15;
784 *( (void **) ( align_buf - sizeof(void **) ) ) = buf;
785 *( (int *) ( align_buf - sizeof(void **) - sizeof(int) ) ) = i_size;
789 x264_log( NULL, X264_LOG_ERROR, "malloc of size %d failed\n", i_size );
793 /****************************************************************************
795 ****************************************************************************/
796 void x264_free( void *p )
800 #if defined( HAVE_MALLOC_H ) || defined( SYS_MACOSX )
803 free( *( ( ( void **) p ) - 1 ) );
808 /****************************************************************************
809 * x264_reduce_fraction:
810 ****************************************************************************/
811 void x264_reduce_fraction( int *n, int *d )
829 /****************************************************************************
831 ****************************************************************************/
832 char *x264_slurp_file( const char *filename )
837 FILE *fh = fopen( filename, "rb" );
840 b_error |= fseek( fh, 0, SEEK_END ) < 0;
841 b_error |= ( i_size = ftell( fh ) ) <= 0;
842 b_error |= fseek( fh, 0, SEEK_SET ) < 0;
845 buf = x264_malloc( i_size+2 );
848 b_error |= fread( buf, 1, i_size, fh ) != i_size;
849 if( buf[i_size-1] != '\n' )
850 buf[i_size++] = '\n';
861 /****************************************************************************
863 ****************************************************************************/
864 char *x264_param2string( x264_param_t *p, int b_res )
868 if( p->rc.psz_zones )
869 len += strlen(p->rc.psz_zones);
870 buf = s = x264_malloc( len );
876 s += sprintf( s, "%dx%d ", p->i_width, p->i_height );
877 s += sprintf( s, "fps=%d/%d ", p->i_fps_num, p->i_fps_den );
880 s += sprintf( s, "cabac=%d", p->b_cabac );
881 s += sprintf( s, " ref=%d", p->i_frame_reference );
882 s += sprintf( s, " deblock=%d:%d:%d", p->b_deblocking_filter,
883 p->i_deblocking_filter_alphac0, p->i_deblocking_filter_beta );
884 s += sprintf( s, " analyse=%#x:%#x", p->analyse.intra, p->analyse.inter );
885 s += sprintf( s, " me=%s", x264_motion_est_names[ p->analyse.i_me_method ] );
886 s += sprintf( s, " subme=%d", p->analyse.i_subpel_refine );
887 s += sprintf( s, " psy=%d", p->analyse.b_psy );
888 if( p->analyse.b_psy )
889 s += sprintf( s, " psy_rd=%.1f:%.1f", p->analyse.f_psy_rd, p->analyse.f_psy_trellis );
890 s += sprintf( s, " mixed_ref=%d", p->analyse.b_mixed_references );
891 s += sprintf( s, " me_range=%d", p->analyse.i_me_range );
892 s += sprintf( s, " chroma_me=%d", p->analyse.b_chroma_me );
893 s += sprintf( s, " trellis=%d", p->analyse.i_trellis );
894 s += sprintf( s, " 8x8dct=%d", p->analyse.b_transform_8x8 );
895 s += sprintf( s, " cqm=%d", p->i_cqm_preset );
896 s += sprintf( s, " deadzone=%d,%d", p->analyse.i_luma_deadzone[0], p->analyse.i_luma_deadzone[1] );
897 s += sprintf( s, " fast_pskip=%d", p->analyse.b_fast_pskip );
898 s += sprintf( s, " chroma_qp_offset=%d", p->analyse.i_chroma_qp_offset );
899 s += sprintf( s, " threads=%d", p->i_threads );
900 s += sprintf( s, " sliced_threads=%d", p->b_sliced_threads );
901 if( p->i_slice_count )
902 s += sprintf( s, " slices=%d", p->i_slice_count );
903 if( p->i_slice_max_size )
904 s += sprintf( s, " slice_max_size=%d", p->i_slice_max_size );
905 if( p->i_slice_max_mbs )
906 s += sprintf( s, " slice_max_mbs=%d", p->i_slice_max_mbs );
907 s += sprintf( s, " nr=%d", p->analyse.i_noise_reduction );
908 s += sprintf( s, " decimate=%d", p->analyse.b_dct_decimate );
909 s += sprintf( s, " mbaff=%d", p->b_interlaced );
910 s += sprintf( s, " constrained_intra=%d", p->b_constrained_intra );
912 s += sprintf( s, " bframes=%d", p->i_bframe );
915 s += sprintf( s, " b_pyramid=%d b_adapt=%d b_bias=%d direct=%d wpredb=%d",
916 p->i_bframe_pyramid, p->i_bframe_adaptive, p->i_bframe_bias,
917 p->analyse.i_direct_mv_pred, p->analyse.b_weighted_bipred );
919 s += sprintf( s, " wpredp=%d", p->analyse.i_weighted_pred > 0 ? p->analyse.i_weighted_pred : 0 );
921 s += sprintf( s, " keyint=%d keyint_min=%d scenecut=%d intra_refresh=%d",
922 p->i_keyint_max, p->i_keyint_min, p->i_scenecut_threshold, p->b_intra_refresh );
924 if( p->rc.b_mb_tree || p->rc.i_vbv_buffer_size )
925 s += sprintf( s, " rc_lookahead=%d", p->rc.i_lookahead );
927 s += sprintf( s, " rc=%s mbtree=%d", p->rc.i_rc_method == X264_RC_ABR ?
928 ( p->rc.b_stat_read ? "2pass" : p->rc.i_vbv_buffer_size ? "cbr" : "abr" )
929 : p->rc.i_rc_method == X264_RC_CRF ? "crf" : "cqp", p->rc.b_mb_tree );
930 if( p->rc.i_rc_method == X264_RC_ABR || p->rc.i_rc_method == X264_RC_CRF )
932 if( p->rc.i_rc_method == X264_RC_CRF )
933 s += sprintf( s, " crf=%.1f", p->rc.f_rf_constant );
935 s += sprintf( s, " bitrate=%d ratetol=%.1f",
936 p->rc.i_bitrate, p->rc.f_rate_tolerance );
937 s += sprintf( s, " qcomp=%.2f qpmin=%d qpmax=%d qpstep=%d",
938 p->rc.f_qcompress, p->rc.i_qp_min, p->rc.i_qp_max, p->rc.i_qp_step );
939 if( p->rc.b_stat_read )
940 s += sprintf( s, " cplxblur=%.1f qblur=%.1f",
941 p->rc.f_complexity_blur, p->rc.f_qblur );
942 if( p->rc.i_vbv_buffer_size )
943 s += sprintf( s, " vbv_maxrate=%d vbv_bufsize=%d",
944 p->rc.i_vbv_max_bitrate, p->rc.i_vbv_buffer_size );
946 else if( p->rc.i_rc_method == X264_RC_CQP )
947 s += sprintf( s, " qp=%d", p->rc.i_qp_constant );
948 if( !(p->rc.i_rc_method == X264_RC_CQP && p->rc.i_qp_constant == 0) )
950 s += sprintf( s, " ip_ratio=%.2f", p->rc.f_ip_factor );
951 if( p->i_bframe && !p->rc.b_mb_tree )
952 s += sprintf( s, " pb_ratio=%.2f", p->rc.f_pb_factor );
953 s += sprintf( s, " aq=%d", p->rc.i_aq_mode );
954 if( p->rc.i_aq_mode )
955 s += sprintf( s, ":%.2f", p->rc.f_aq_strength );
956 if( p->rc.psz_zones )
957 s += sprintf( s, " zones=%s", p->rc.psz_zones );
958 else if( p->rc.i_zones )
959 s += sprintf( s, " zones" );