-
Notifications
You must be signed in to change notification settings - Fork 0
/
x264.c
2027 lines (1890 loc) · 85.9 KB
/
x264.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*****************************************************************************
* x264: top-level x264cli functions
*****************************************************************************
* Copyright (C) 2003-2015 x264 project
*
* Authors: Loren Merritt <lorenm@u.washington.edu>
* Laurent Aimar <fenrir@via.ecp.fr>
* Steven Walters <kemuri9@gmail.com>
* Fiona Glaser <fiona@x264.com>
* Kieran Kunhya <kieran@kunhya.com>
* Henrik Gramner <henrik@gramner.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
*
* This program is also available under a commercial proprietary license.
* For more information, contact us at licensing@x264.com.
*****************************************************************************/
#ifdef _WIN32
/* The following two defines must be located before the inclusion of any system header files. */
#define WINVER 0x0500
#define _WIN32_WINNT 0x0500
#include <windows.h>
#include <io.h> /* _setmode() */
#include <fcntl.h> /* _O_BINARY */
#endif
#include <signal.h>
#define _GNU_SOURCE
#include <getopt.h>
#include "common/common.h"
#include "x264cli.h"
#include "input/input.h"
#include "output/output.h"
#include "filters/filters.h"
#define FAIL_IF_ERROR( cond, ... ) FAIL_IF_ERR( cond, "x264", __VA_ARGS__ )
#if HAVE_LAVF
#undef DECLARE_ALIGNED
#include <libavformat/avformat.h>
#include <libavutil/pixfmt.h>
#include <libavutil/pixdesc.h>
#endif
#if HAVE_SWSCALE
#undef DECLARE_ALIGNED
#include <libswscale/swscale.h>
#endif
#if HAVE_FFMS
#include <ffms.h>
#endif
#ifdef _WIN32
#define CONSOLE_TITLE_SIZE 200
static wchar_t org_console_title[CONSOLE_TITLE_SIZE] = L"";
void x264_cli_set_console_title( const char *title )
{
wchar_t title_utf16[CONSOLE_TITLE_SIZE];
if( utf8_to_utf16( title, title_utf16 ) )
SetConsoleTitleW( title_utf16 );
}
static int utf16_to_ansi( const wchar_t *utf16, char *ansi, int size )
{
int invalid;
return WideCharToMultiByte( CP_ACP, WC_NO_BEST_FIT_CHARS, utf16, -1, ansi, size, NULL, &invalid ) && !invalid;
}
/* Some external libraries doesn't support Unicode in filenames,
* as a workaround we can try to get an ANSI filename instead. */
int x264_ansi_filename( const char *filename, char *ansi_filename, int size, int create_file )
{
wchar_t filename_utf16[MAX_PATH];
if( utf8_to_utf16( filename, filename_utf16 ) )
{
if( create_file )
{
/* Create the file using the Unicode filename if it doesn't already exist. */
FILE *fh = _wfopen( filename_utf16, L"ab" );
if( fh )
fclose( fh );
}
/* Check if the filename already is valid ANSI. */
if( utf16_to_ansi( filename_utf16, ansi_filename, size ) )
return 1;
/* Check for a legacy 8.3 short filename. */
int short_length = GetShortPathNameW( filename_utf16, filename_utf16, MAX_PATH );
if( short_length > 0 && short_length < MAX_PATH )
if( utf16_to_ansi( filename_utf16, ansi_filename, size ) )
return 1;
}
return 0;
}
/* Retrieve command line arguments as UTF-8. */
static int get_argv_utf8( int *argc_ptr, char ***argv_ptr )
{
int ret = 0;
wchar_t **argv_utf16 = CommandLineToArgvW( GetCommandLineW(), argc_ptr );
if( argv_utf16 )
{
int argc = *argc_ptr;
int offset = (argc+1) * sizeof(char*);
int size = offset;
for( int i = 0; i < argc; i++ )
size += WideCharToMultiByte( CP_UTF8, 0, argv_utf16[i], -1, NULL, 0, NULL, NULL );
char **argv = *argv_ptr = malloc( size );
if( argv )
{
for( int i = 0; i < argc; i++ )
{
argv[i] = (char*)argv + offset;
offset += WideCharToMultiByte( CP_UTF8, 0, argv_utf16[i], -1, argv[i], size-offset, NULL, NULL );
}
argv[argc] = NULL;
ret = 1;
}
LocalFree( argv_utf16 );
}
return ret;
}
#endif
/* Ctrl-C handler */
static volatile int b_ctrl_c = 0;
static void sigint_handler( int a )
{
b_ctrl_c = 1;
}
typedef struct {
int b_progress;
int i_seek;
hnd_t hin;
hnd_t hout;
FILE *qpfile;
FILE *tcfile_out;
double timebase_convert_multiplier;
int i_pulldown;
} cli_opt_t;
/* file i/o operation structs */
cli_input_t cli_input;
static cli_output_t cli_output;
/* video filter operation struct */
static cli_vid_filter_t filter;
static const char * const demuxer_names[] =
{
"auto",
"raw",
"y4m",
#if HAVE_AVS
"avs",
#endif
#if HAVE_LAVF
"lavf",
#endif
#if HAVE_FFMS
"ffms",
#endif
0
};
static const char * const muxer_names[] =
{
"auto",
"raw",
"mkv",
"flv",
#if HAVE_GPAC || HAVE_LSMASH
"mp4",
#endif
0
};
static const char * const pulldown_names[] = { "none", "22", "32", "64", "double", "triple", "euro", 0 };
static const char * const log_level_names[] = { "none", "error", "warning", "info", "debug", 0 };
static const char * const output_csp_names[] =
{
#if !X264_CHROMA_FORMAT || X264_CHROMA_FORMAT == X264_CSP_I420
"i420",
#endif
#if !X264_CHROMA_FORMAT || X264_CHROMA_FORMAT == X264_CSP_I422
"i422",
#endif
#if !X264_CHROMA_FORMAT || X264_CHROMA_FORMAT == X264_CSP_I444
"i444", "rgb",
#endif
0
};
static const char * const chroma_format_names[] =
{
[0] = "all",
[X264_CSP_I420] = "i420",
[X264_CSP_I422] = "i422",
[X264_CSP_I444] = "i444"
};
static const char * const range_names[] = { "auto", "tv", "pc", 0 };
typedef struct
{
int mod;
uint8_t pattern[24];
float fps_factor;
} cli_pulldown_t;
enum pulldown_type_e
{
X264_PULLDOWN_22 = 1,
X264_PULLDOWN_32,
X264_PULLDOWN_64,
X264_PULLDOWN_DOUBLE,
X264_PULLDOWN_TRIPLE,
X264_PULLDOWN_EURO
};
#define TB PIC_STRUCT_TOP_BOTTOM
#define BT PIC_STRUCT_BOTTOM_TOP
#define TBT PIC_STRUCT_TOP_BOTTOM_TOP
#define BTB PIC_STRUCT_BOTTOM_TOP_BOTTOM
static const cli_pulldown_t pulldown_values[] =
{
[X264_PULLDOWN_22] = {1, {TB}, 1.0},
[X264_PULLDOWN_32] = {4, {TBT, BT, BTB, TB}, 1.25},
[X264_PULLDOWN_64] = {2, {PIC_STRUCT_DOUBLE, PIC_STRUCT_TRIPLE}, 1.0},
[X264_PULLDOWN_DOUBLE] = {1, {PIC_STRUCT_DOUBLE}, 2.0},
[X264_PULLDOWN_TRIPLE] = {1, {PIC_STRUCT_TRIPLE}, 3.0},
[X264_PULLDOWN_EURO] = {24, {TBT, BT, BT, BT, BT, BT, BT, BT, BT, BT, BT, BT,
BTB, TB, TB, TB, TB, TB, TB, TB, TB, TB, TB, TB}, 25.0/24.0}
};
#undef TB
#undef BT
#undef TBT
#undef BTB
// indexed by pic_struct enum
static const float pulldown_frame_duration[10] = { 0.0, 1, 0.5, 0.5, 1, 1, 1.5, 1.5, 2, 3 };
static void help( x264_param_t *defaults, int longhelp );
static int parse( int argc, char **argv, x264_param_t *param, cli_opt_t *opt );
static int encode( x264_param_t *param, cli_opt_t *opt );
/* logging and printing for within the cli system */
static int cli_log_level;
void x264_cli_log( const char *name, int i_level, const char *fmt, ... )
{
if( i_level > cli_log_level )
return;
char *s_level;
switch( i_level )
{
case X264_LOG_ERROR:
s_level = "error";
break;
case X264_LOG_WARNING:
s_level = "warning";
break;
case X264_LOG_INFO:
s_level = "info";
break;
case X264_LOG_DEBUG:
s_level = "debug";
break;
default:
s_level = "unknown";
break;
}
fprintf( stderr, "%s [%s]: ", name, s_level );
va_list arg;
va_start( arg, fmt );
x264_vfprintf( stderr, fmt, arg );
va_end( arg );
}
void x264_cli_printf( int i_level, const char *fmt, ... )
{
if( i_level > cli_log_level )
return;
va_list arg;
va_start( arg, fmt );
x264_vfprintf( stderr, fmt, arg );
va_end( arg );
}
static void print_version_info( void )
{
#ifdef X264_POINTVER
printf( "x264 "X264_POINTVER"\n" );
#else
printf( "x264 0.%d.X\n", X264_BUILD );
#endif
#if HAVE_SWSCALE
printf( "(libswscale %d.%d.%d)\n", LIBSWSCALE_VERSION_MAJOR, LIBSWSCALE_VERSION_MINOR, LIBSWSCALE_VERSION_MICRO );
#endif
#if HAVE_LAVF
printf( "(libavformat %d.%d.%d)\n", LIBAVFORMAT_VERSION_MAJOR, LIBAVFORMAT_VERSION_MINOR, LIBAVFORMAT_VERSION_MICRO );
#endif
#if HAVE_FFMS
printf( "(ffmpegsource %d.%d.%d.%d)\n", FFMS_VERSION >> 24, (FFMS_VERSION & 0xff0000) >> 16, (FFMS_VERSION & 0xff00) >> 8, FFMS_VERSION & 0xff );
#endif
printf( "built on " __DATE__ ", " );
#ifdef __INTEL_COMPILER
printf( "intel: %.2f (%d)\n", __INTEL_COMPILER / 100.f, __INTEL_COMPILER_BUILD_DATE );
#elif defined(__GNUC__)
printf( "gcc: " __VERSION__ "\n" );
#elif defined(_MSC_FULL_VER)
printf( "msvc: %.2f (%u)\n", _MSC_VER / 100.f, _MSC_FULL_VER );
#else
printf( "using an unknown compiler\n" );
#endif
printf( "x264 configuration: --bit-depth=%d --chroma-format=%s\n", X264_BIT_DEPTH, chroma_format_names[X264_CHROMA_FORMAT] );
printf( "libx264 configuration: --bit-depth=%d --chroma-format=%s\n", x264_bit_depth, chroma_format_names[x264_chroma_format] );
printf( "x264 license: " );
#if HAVE_GPL
printf( "GPL version 2 or later\n" );
#else
printf( "Non-GPL commercial\n" );
#endif
#if HAVE_SWSCALE
const char *license = swscale_license();
printf( "libswscale%s%s license: %s\n", HAVE_LAVF ? "/libavformat" : "", HAVE_FFMS ? "/ffmpegsource" : "" , license );
if( !strcmp( license, "nonfree and unredistributable" ) ||
(!HAVE_GPL && (!strcmp( license, "GPL version 2 or later" )
|| !strcmp( license, "GPL version 3 or later" ))))
printf( "WARNING: This binary is unredistributable!\n" );
#endif
}
int main( int argc, char **argv )
{
x264_param_t param;
cli_opt_t opt = {0};
int ret = 0;
FAIL_IF_ERROR( x264_threading_init(), "unable to initialize threading\n" )
#ifdef _WIN32
FAIL_IF_ERROR( !get_argv_utf8( &argc, &argv ), "unable to convert command line to UTF-8\n" )
GetConsoleTitleW( org_console_title, CONSOLE_TITLE_SIZE );
_setmode( _fileno( stdin ), _O_BINARY );
_setmode( _fileno( stdout ), _O_BINARY );
_setmode( _fileno( stderr ), _O_BINARY );
#endif
/* Parse command line */
if( parse( argc, argv, ¶m, &opt ) < 0 )
ret = -1;
#ifdef _WIN32
/* Restore title; it can be changed by input modules */
SetConsoleTitleW( org_console_title );
#endif
/* Control-C handler */
signal( SIGINT, sigint_handler );
if( !ret )
ret = encode( ¶m, &opt );
/* clean up handles */
if( filter.free )
filter.free( opt.hin );
else if( opt.hin )
cli_input.close_file( opt.hin );
if( opt.hout )
cli_output.close_file( opt.hout, 0, 0 );
if( opt.tcfile_out )
fclose( opt.tcfile_out );
if( opt.qpfile )
fclose( opt.qpfile );
#ifdef _WIN32
SetConsoleTitleW( org_console_title );
free( argv );
#endif
return ret;
}
static char const *strtable_lookup( const char * const table[], int idx )
{
int i = 0; while( table[i] ) i++;
return ( ( idx >= 0 && idx < i ) ? table[ idx ] : "???" );
}
static char *stringify_names( char *buf, const char * const names[] )
{
int i = 0;
char *p = buf;
for( p[0] = 0; names[i]; i++ )
{
p += sprintf( p, "%s", names[i] );
if( names[i+1] )
p += sprintf( p, ", " );
}
return buf;
}
static void print_csp_names( int longhelp )
{
if( longhelp < 2 )
return;
# define INDENT " "
printf( " - valid csps for `raw' demuxer:\n" );
printf( INDENT );
for( int i = X264_CSP_NONE+1; i < X264_CSP_CLI_MAX; i++ )
{
if( x264_cli_csps[i].name )
{
printf( "%s", x264_cli_csps[i].name );
if( i+1 < X264_CSP_CLI_MAX )
printf( ", " );
}
}
#if HAVE_LAVF
printf( "\n" );
printf( " - valid csps for `lavf' demuxer:\n" );
printf( INDENT );
size_t line_len = strlen( INDENT );
for( enum PixelFormat i = AV_PIX_FMT_NONE+1; i < AV_PIX_FMT_NB; i++ )
{
const char *pfname = av_get_pix_fmt_name( i );
if( pfname )
{
size_t name_len = strlen( pfname );
if( line_len + name_len > (80 - strlen( ", " )) )
{
printf( "\n" INDENT );
line_len = strlen( INDENT );
}
printf( "%s", pfname );
line_len += name_len;
if( i+1 < AV_PIX_FMT_NB )
{
printf( ", " );
line_len += 2;
}
}
}
#endif
printf( "\n" );
}
static void help( x264_param_t *defaults, int longhelp )
{
char buf[50];
#define H0 printf
#define H1 if(longhelp>=1) printf
#define H2 if(longhelp==2) printf
H0( "x264 core:%d%s\n"
"Syntax: x264 [options] -o outfile infile\n"
"\n"
"Infile can be raw (in which case resolution is required),\n"
" or YUV4MPEG (*.y4m),\n"
" or Avisynth if compiled with support (%s).\n"
" or libav* formats if compiled with lavf support (%s) or ffms support (%s).\n"
"Outfile type is selected by filename:\n"
" .264 -> Raw bytestream\n"
" .mkv -> Matroska\n"
" .flv -> Flash Video\n"
" .mp4 -> MP4 if compiled with GPAC or L-SMASH support (%s)\n"
"Output bit depth: %d (configured at compile time)\n"
"\n"
"Options:\n"
"\n"
" -h, --help List basic options\n"
" --longhelp List more options\n"
" --fullhelp List all options\n"
"\n",
X264_BUILD, X264_VERSION,
#if HAVE_AVS
"yes",
#else
"no",
#endif
#if HAVE_LAVF
"yes",
#else
"no",
#endif
#if HAVE_FFMS
"yes",
#else
"no",
#endif
#if HAVE_GPAC
"gpac",
#elif HAVE_LSMASH
"lsmash",
#else
"no",
#endif
x264_bit_depth
);
H0( "Example usage:\n" );
H0( "\n" );
H0( " Constant quality mode:\n" );
H0( " x264 --crf 24 -o <output> <input>\n" );
H0( "\n" );
H0( " Two-pass with a bitrate of 1000kbps:\n" );
H0( " x264 --pass 1 --bitrate 1000 -o <output> <input>\n" );
H0( " x264 --pass 2 --bitrate 1000 -o <output> <input>\n" );
H0( "\n" );
H0( " Lossless:\n" );
H0( " x264 --qp 0 -o <output> <input>\n" );
H0( "\n" );
H0( " Maximum PSNR at the cost of speed and visual quality:\n" );
H0( " x264 --preset placebo --tune psnr -o <output> <input>\n" );
H0( "\n" );
H0( " Constant bitrate at 1000kbps with a 2 second-buffer:\n");
H0( " x264 --vbv-bufsize 2000 --bitrate 1000 -o <output> <input>\n" );
H0( "\n" );
H0( "Presets:\n" );
H0( "\n" );
H0( " --profile <string> Force the limits of an H.264 profile\n"
" Overrides all settings.\n" );
H2(
#if X264_CHROMA_FORMAT <= X264_CSP_I420
#if X264_BIT_DEPTH==8
" - baseline:\n"
" --no-8x8dct --bframes 0 --no-cabac\n"
" --cqm flat --weightp 0\n"
" No interlaced.\n"
" No lossless.\n"
" - main:\n"
" --no-8x8dct --cqm flat\n"
" No lossless.\n"
" - high:\n"
" No lossless.\n"
#endif
" - high10:\n"
" No lossless.\n"
" Support for bit depth 8-10.\n"
#endif
#if X264_CHROMA_FORMAT <= X264_CSP_I422
" - high422:\n"
" No lossless.\n"
" Support for bit depth 8-10.\n"
" Support for 4:2:0/4:2:2 chroma subsampling.\n"
#endif
" - high444:\n"
" Support for bit depth 8-10.\n"
" Support for 4:2:0/4:2:2/4:4:4 chroma subsampling.\n" );
else H0(
" - "
#if X264_CHROMA_FORMAT <= X264_CSP_I420
#if X264_BIT_DEPTH==8
"baseline,main,high,"
#endif
"high10,"
#endif
#if X264_CHROMA_FORMAT <= X264_CSP_I422
"high422,"
#endif
"high444\n"
);
H0( " --preset <string> Use a preset to select encoding settings [medium]\n"
" Overridden by user settings.\n" );
H2( " - ultrafast:\n"
" --no-8x8dct --aq-mode 0 --b-adapt 0\n"
" --bframes 0 --no-cabac --no-deblock\n"
" --no-mbtree --me dia --no-mixed-refs\n"
" --partitions none --rc-lookahead 0 --ref 1\n"
" --scenecut 0 --subme 0 --trellis 0\n"
" --no-weightb --weightp 0\n"
" - superfast:\n"
" --no-mbtree --me dia --no-mixed-refs\n"
" --partitions i8x8,i4x4 --rc-lookahead 0\n"
" --ref 1 --subme 1 --trellis 0 --weightp 1\n"
" - veryfast:\n"
" --no-mixed-refs --rc-lookahead 10\n"
" --ref 1 --subme 2 --trellis 0 --weightp 1\n"
" - faster:\n"
" --no-mixed-refs --rc-lookahead 20\n"
" --ref 2 --subme 4 --weightp 1\n"
" - fast:\n"
" --rc-lookahead 30 --ref 2 --subme 6\n"
" --weightp 1\n"
" - medium:\n"
" Default settings apply.\n"
" - slow:\n"
" --b-adapt 2 --direct auto --me umh\n"
" --rc-lookahead 50 --ref 5 --subme 8\n"
" - slower:\n"
" --b-adapt 2 --direct auto --me umh\n"
" --partitions all --rc-lookahead 60\n"
" --ref 8 --subme 9 --trellis 2\n"
" - veryslow:\n"
" --b-adapt 2 --bframes 8 --direct auto\n"
" --me umh --merange 24 --partitions all\n"
" --ref 16 --subme 10 --trellis 2\n"
" --rc-lookahead 60\n"
" - placebo:\n"
" --bframes 16 --b-adapt 2 --direct auto\n"
" --slow-firstpass --no-fast-pskip\n"
" --me tesa --merange 24 --partitions all\n"
" --rc-lookahead 60 --ref 16 --subme 11\n"
" --trellis 2\n" );
else H0( " - ultrafast,superfast,veryfast,faster,fast\n"
" - medium,slow,slower,veryslow,placebo\n" );
H0( " --tune <string> Tune the settings for a particular type of source\n"
" or situation\n"
" Overridden by user settings.\n"
" Multiple tunings are separated by commas.\n"
" Only one psy tuning can be used at a time.\n" );
H2( " - film (psy tuning):\n"
" --deblock -1:-1 --psy-rd <unset>:0.15\n"
" - animation (psy tuning):\n"
" --bframes {+2} --deblock 1:1\n"
" --psy-rd 0.4:<unset> --aq-strength 0.6\n"
" --ref {Double if >1 else 1}\n"
" - grain (psy tuning):\n"
" --aq-strength 0.5 --no-dct-decimate\n"
" --deadzone-inter 6 --deadzone-intra 6\n"
" --deblock -2:-2 --ipratio 1.1 \n"
" --pbratio 1.1 --psy-rd <unset>:0.25\n"
" --qcomp 0.8\n"
" - stillimage (psy tuning):\n"
" --aq-strength 1.2 --deblock -3:-3\n"
" --psy-rd 2.0:0.7\n"
" - psnr (psy tuning):\n"
" --aq-mode 0 --no-psy\n"
" - ssim (psy tuning):\n"
" --aq-mode 2 --no-psy\n"
" - fastdecode:\n"
" --no-cabac --no-deblock --no-weightb\n"
" --weightp 0\n"
" - zerolatency:\n"
" --bframes 0 --force-cfr --no-mbtree\n"
" --sync-lookahead 0 --sliced-threads\n"
" --rc-lookahead 0\n" );
else H0( " - psy tunings: film,animation,grain,\n"
" stillimage,psnr,ssim\n"
" - other tunings: fastdecode,zerolatency\n" );
H2( " --slow-firstpass Don't force these faster settings with --pass 1:\n"
" --no-8x8dct --me dia --partitions none\n"
" --ref 1 --subme {2 if >2 else unchanged}\n"
" --trellis 0 --fast-pskip\n" );
else H1( " --slow-firstpass Don't force faster settings with --pass 1\n" );
H0( "\n" );
H0( "Frame-type options:\n" );
H0( "\n" );
H0( " -I, --keyint <integer or \"infinite\"> Maximum GOP size [%d]\n", defaults->i_keyint_max );
H2( " -i, --min-keyint <integer> Minimum GOP size [auto]\n" );
H2( " --no-scenecut Disable adaptive I-frame decision\n" );
H2( " --scenecut <integer> How aggressively to insert extra I-frames [%d]\n", defaults->i_scenecut_threshold );
H2( " --intra-refresh Use Periodic Intra Refresh instead of IDR frames\n" );
H1( " -b, --bframes <integer> Number of B-frames between I and P [%d]\n", defaults->i_bframe );
H1( " --b-adapt <integer> Adaptive B-frame decision method [%d]\n"
" Higher values may lower threading efficiency.\n"
" - 0: Disabled\n"
" - 1: Fast\n"
" - 2: Optimal (slow with high --bframes)\n", defaults->i_bframe_adaptive );
H2( " --b-bias <integer> Influences how often B-frames are used [%d]\n", defaults->i_bframe_bias );
H1( " --b-pyramid <string> Keep some B-frames as references [%s]\n"
" - none: Disabled\n"
" - strict: Strictly hierarchical pyramid\n"
" - normal: Non-strict (not Blu-ray compatible)\n",
strtable_lookup( x264_b_pyramid_names, defaults->i_bframe_pyramid ) );
H1( " --open-gop Use recovery points to close GOPs\n"
" Only available with b-frames\n" );
H1( " --no-cabac Disable CABAC\n" );
H1( " -r, --ref <integer> Number of reference frames [%d]\n", defaults->i_frame_reference );
H1( " --no-deblock Disable loop filter\n" );
H1( " -f, --deblock <alpha:beta> Loop filter parameters [%d:%d]\n",
defaults->i_deblocking_filter_alphac0, defaults->i_deblocking_filter_beta );
H2( " --slices <integer> Number of slices per frame; forces rectangular\n"
" slices and is overridden by other slicing options\n" );
else H1( " --slices <integer> Number of slices per frame\n" );
H2( " --slices-max <integer> Absolute maximum slices per frame; overrides\n"
" slice-max-size/slice-max-mbs when necessary\n" );
H2( " --slice-max-size <integer> Limit the size of each slice in bytes\n");
H2( " --slice-max-mbs <integer> Limit the size of each slice in macroblocks (max)\n");
H2( " --slice-min-mbs <integer> Limit the size of each slice in macroblocks (min)\n");
H0( " --tff Enable interlaced mode (top field first)\n" );
H0( " --bff Enable interlaced mode (bottom field first)\n" );
H2( " --constrained-intra Enable constrained intra prediction.\n" );
H0( " --pulldown <string> Use soft pulldown to change frame rate\n"
" - none, 22, 32, 64, double, triple, euro (requires cfr input)\n" );
H2( " --fake-interlaced Flag stream as interlaced but encode progressive.\n"
" Makes it possible to encode 25p and 30p Blu-Ray\n"
" streams. Ignored in interlaced mode.\n" );
H2( " --frame-packing <integer> For stereoscopic videos define frame arrangement\n"
" - 0: checkerboard - pixels are alternatively from L and R\n"
" - 1: column alternation - L and R are interlaced by column\n"
" - 2: row alternation - L and R are interlaced by row\n"
" - 3: side by side - L is on the left, R on the right\n"
" - 4: top bottom - L is on top, R on bottom\n"
" - 5: frame alternation - one view per frame\n"
" - 6: mono - 2D frame without any frame packing\n"
" - 7: tile format - L is on top-left, R split across\n" );
H0( "\n" );
H0( "Ratecontrol:\n" );
H0( "\n" );
H1( " -q, --qp <integer> Force constant QP (0-%d, 0=lossless)\n", QP_MAX );
H0( " -B, --bitrate <integer> Set bitrate (kbit/s)\n" );
H0( " --crf <float> Quality-based VBR (%d-51) [%.1f]\n", 51 - QP_MAX_SPEC, defaults->rc.f_rf_constant );
H1( " --rc-lookahead <integer> Number of frames for frametype lookahead [%d]\n", defaults->rc.i_lookahead );
H0( " --vbv-maxrate <integer> Max local bitrate (kbit/s) [%d]\n", defaults->rc.i_vbv_max_bitrate );
H0( " --vbv-bufsize <integer> Set size of the VBV buffer (kbit) [%d]\n", defaults->rc.i_vbv_buffer_size );
H2( " --vbv-init <float> Initial VBV buffer occupancy [%.1f]\n", defaults->rc.f_vbv_buffer_init );
H2( " --crf-max <float> With CRF+VBV, limit RF to this value\n"
" May cause VBV underflows!\n" );
H2( " --qpmin <integer> Set min QP [%d]\n", defaults->rc.i_qp_min );
H2( " --qpmax <integer> Set max QP [%d]\n", defaults->rc.i_qp_max );
H2( " --qpstep <integer> Set max QP step [%d]\n", defaults->rc.i_qp_step );
H2( " --ratetol <float> Tolerance of ABR ratecontrol and VBV [%.1f]\n", defaults->rc.f_rate_tolerance );
H2( " --ipratio <float> QP factor between I and P [%.2f]\n", defaults->rc.f_ip_factor );
H2( " --pbratio <float> QP factor between P and B [%.2f]\n", defaults->rc.f_pb_factor );
H2( " --chroma-qp-offset <integer> QP difference between chroma and luma [%d]\n", defaults->analyse.i_chroma_qp_offset );
H2( " --aq-mode <integer> AQ method [%d]\n"
" - 0: Disabled\n"
" - 1: Variance AQ (complexity mask)\n"
" - 2: Auto-variance AQ\n"
" - 3: Auto-variance AQ with bias to dark scenes\n", defaults->rc.i_aq_mode );
H1( " --aq-strength <float> Reduces blocking and blurring in flat and\n"
" textured areas. [%.1f]\n", defaults->rc.f_aq_strength );
H1( "\n" );
H0( " -p, --pass <integer> Enable multipass ratecontrol\n"
" - 1: First pass, creates stats file\n"
" - 2: Last pass, does not overwrite stats file\n" );
H2( " - 3: Nth pass, overwrites stats file\n" );
H1( " --stats <string> Filename for 2 pass stats [\"%s\"]\n", defaults->rc.psz_stat_out );
H2( " --no-mbtree Disable mb-tree ratecontrol.\n");
H2( " --qcomp <float> QP curve compression [%.2f]\n", defaults->rc.f_qcompress );
H2( " --cplxblur <float> Reduce fluctuations in QP (before curve compression) [%.1f]\n", defaults->rc.f_complexity_blur );
H2( " --qblur <float> Reduce fluctuations in QP (after curve compression) [%.1f]\n", defaults->rc.f_qblur );
H2( " --zones <zone0>/<zone1>/... Tweak the bitrate of regions of the video\n" );
H2( " Each zone is of the form\n"
" <start frame>,<end frame>,<option>\n"
" where <option> is either\n"
" q=<integer> (force QP)\n"
" or b=<float> (bitrate multiplier)\n" );
H2( " --qpfile <string> Force frametypes and QPs for some or all frames\n"
" Format of each line: framenumber frametype QP\n"
" QP is optional (none lets x264 choose). Frametypes: I,i,K,P,B,b.\n"
" K=<I or i> depending on open-gop setting\n"
" QPs are restricted by qpmin/qpmax.\n" );
H1( "\n" );
H1( "Analysis:\n" );
H1( "\n" );
H1( " -A, --partitions <string> Partitions to consider [\"p8x8,b8x8,i8x8,i4x4\"]\n"
" - p8x8, p4x4, b8x8, i8x8, i4x4\n"
" - none, all\n"
" (p4x4 requires p8x8. i8x8 requires --8x8dct.)\n" );
H1( " --direct <string> Direct MV prediction mode [\"%s\"]\n"
" - none, spatial, temporal, auto\n",
strtable_lookup( x264_direct_pred_names, defaults->analyse.i_direct_mv_pred ) );
H2( " --no-weightb Disable weighted prediction for B-frames\n" );
H1( " --weightp <integer> Weighted prediction for P-frames [%d]\n"
" - 0: Disabled\n"
" - 1: Weighted refs\n"
" - 2: Weighted refs + Duplicates\n", defaults->analyse.i_weighted_pred );
H1( " --me <string> Integer pixel motion estimation method [\"%s\"]\n",
strtable_lookup( x264_motion_est_names, defaults->analyse.i_me_method ) );
H2( " - dia: diamond search, radius 1 (fast)\n"
" - hex: hexagonal search, radius 2\n"
" - umh: uneven multi-hexagon search\n"
" - esa: exhaustive search\n"
" - tesa: hadamard exhaustive search (slow)\n" );
else H1( " - dia, hex, umh\n" );
H2( " --merange <integer> Maximum motion vector search range [%d]\n", defaults->analyse.i_me_range );
H2( " --mvrange <integer> Maximum motion vector length [-1 (auto)]\n" );
H2( " --mvrange-thread <int> Minimum buffer between threads [-1 (auto)]\n" );
H1( " -m, --subme <integer> Subpixel motion estimation and mode decision [%d]\n", defaults->analyse.i_subpel_refine );
H2( " - 0: fullpel only (not recommended)\n"
" - 1: SAD mode decision, one qpel iteration\n"
" - 2: SATD mode decision\n"
" - 3-5: Progressively more qpel\n"
" - 6: RD mode decision for I/P-frames\n"
" - 7: RD mode decision for all frames\n"
" - 8: RD refinement for I/P-frames\n"
" - 9: RD refinement for all frames\n"
" - 10: QP-RD - requires trellis=2, aq-mode>0\n"
" - 11: Full RD: disable all early terminations\n" );
else H1( " decision quality: 1=fast, 11=best\n" );
H1( " --psy-rd <float:float> Strength of psychovisual optimization [\"%.1f:%.1f\"]\n"
" #1: RD (requires subme>=6)\n"
" #2: Trellis (requires trellis, experimental)\n",
defaults->analyse.f_psy_rd, defaults->analyse.f_psy_trellis );
H2( " --no-psy Disable all visual optimizations that worsen\n"
" both PSNR and SSIM.\n" );
H2( " --no-mixed-refs Don't decide references on a per partition basis\n" );
H2( " --no-chroma-me Ignore chroma in motion estimation\n" );
H1( " --no-8x8dct Disable adaptive spatial transform size\n" );
H1( " -t, --trellis <integer> Trellis RD quantization. [%d]\n"
" - 0: disabled\n"
" - 1: enabled only on the final encode of a MB\n"
" - 2: enabled on all mode decisions\n", defaults->analyse.i_trellis );
H2( " --no-fast-pskip Disables early SKIP detection on P-frames\n" );
H2( " --no-dct-decimate Disables coefficient thresholding on P-frames\n" );
H1( " --nr <integer> Noise reduction [%d]\n", defaults->analyse.i_noise_reduction );
H2( "\n" );
H2( " --deadzone-inter <int> Set the size of the inter luma quantization deadzone [%d]\n", defaults->analyse.i_luma_deadzone[0] );
H2( " --deadzone-intra <int> Set the size of the intra luma quantization deadzone [%d]\n", defaults->analyse.i_luma_deadzone[1] );
H2( " Deadzones should be in the range 0 - 32.\n" );
H2( " --cqm <string> Preset quant matrices [\"flat\"]\n"
" - jvt, flat\n" );
H1( " --cqmfile <string> Read custom quant matrices from a JM-compatible file\n" );
H2( " Overrides any other --cqm* options.\n" );
H2( " --cqm4 <list> Set all 4x4 quant matrices\n"
" Takes a comma-separated list of 16 integers.\n" );
H2( " --cqm8 <list> Set all 8x8 quant matrices\n"
" Takes a comma-separated list of 64 integers.\n" );
H2( " --cqm4i, --cqm4p, --cqm8i, --cqm8p <list>\n"
" Set both luma and chroma quant matrices\n" );
H2( " --cqm4iy, --cqm4ic, --cqm4py, --cqm4pc <list>\n"
" Set individual quant matrices\n" );
H2( "\n" );
H2( "Video Usability Info (Annex E):\n" );
H2( "The VUI settings are not used by the encoder but are merely suggestions to\n" );
H2( "the playback equipment. See doc/vui.txt for details. Use at your own risk.\n" );
H2( "\n" );
H2( " --overscan <string> Specify crop overscan setting [\"%s\"]\n"
" - undef, show, crop\n",
strtable_lookup( x264_overscan_names, defaults->vui.i_overscan ) );
H2( " --videoformat <string> Specify video format [\"%s\"]\n"
" - component, pal, ntsc, secam, mac, undef\n",
strtable_lookup( x264_vidformat_names, defaults->vui.i_vidformat ) );
H2( " --range <string> Specify color range [\"%s\"]\n"
" - %s\n", range_names[0], stringify_names( buf, range_names ) );
H2( " --colorprim <string> Specify color primaries [\"%s\"]\n"
" - undef, bt709, bt470m, bt470bg, smpte170m,\n"
" smpte240m, film, bt2020\n",
strtable_lookup( x264_colorprim_names, defaults->vui.i_colorprim ) );
H2( " --transfer <string> Specify transfer characteristics [\"%s\"]\n"
" - undef, bt709, bt470m, bt470bg, smpte170m,\n"
" smpte240m, linear, log100, log316,\n"
" iec61966-2-4, bt1361e, iec61966-2-1,\n"
" bt2020-10, bt2020-12\n",
strtable_lookup( x264_transfer_names, defaults->vui.i_transfer ) );
H2( " --colormatrix <string> Specify color matrix setting [\"%s\"]\n"
" - undef, bt709, fcc, bt470bg, smpte170m,\n"
" smpte240m, GBR, YCgCo, bt2020nc, bt2020c\n",
strtable_lookup( x264_colmatrix_names, defaults->vui.i_colmatrix ) );
H2( " --chromaloc <integer> Specify chroma sample location (0 to 5) [%d]\n",
defaults->vui.i_chroma_loc );
H2( " --nal-hrd <string> Signal HRD information (requires vbv-bufsize)\n"
" - none, vbr, cbr (cbr not allowed in .mp4)\n" );
H2( " --filler Force hard-CBR and generate filler (implied by\n"
" --nal-hrd cbr)\n" );
H2( " --pic-struct Force pic_struct in Picture Timing SEI\n" );
H2( " --crop-rect <string> Add 'left,top,right,bottom' to the bitstream-level\n"
" cropping rectangle\n" );
H0( "\n" );
H0( "Input/Output:\n" );
H0( "\n" );
H0( " -o, --output <string> Specify output file\n" );
H1( " --muxer <string> Specify output container format [\"%s\"]\n"
" - %s\n", muxer_names[0], stringify_names( buf, muxer_names ) );
H1( " --demuxer <string> Specify input container format [\"%s\"]\n"
" - %s\n", demuxer_names[0], stringify_names( buf, demuxer_names ) );
H1( " --input-fmt <string> Specify input file format (requires lavf support)\n" );
H1( " --input-csp <string> Specify input colorspace format for raw input\n" );
print_csp_names( longhelp );
H1( " --output-csp <string> Specify output colorspace [\"%s\"]\n"
" - %s\n", output_csp_names[0], stringify_names( buf, output_csp_names ) );
H1( " --input-depth <integer> Specify input bit depth for raw input\n" );
H1( " --input-range <string> Specify input color range [\"%s\"]\n"
" - %s\n", range_names[0], stringify_names( buf, range_names ) );
H1( " --input-res <intxint> Specify input resolution (width x height)\n" );
H1( " --index <string> Filename for input index file\n" );
H0( " --sar width:height Specify Sample Aspect Ratio\n" );
H0( " --fps <float|rational> Specify framerate\n" );
H0( " --seek <integer> First frame to encode\n" );
H0( " --frames <integer> Maximum number of frames to encode\n" );
H0( " --level <string> Specify level (as defined by Annex A)\n" );
H1( " --bluray-compat Enable compatibility hacks for Blu-ray support\n" );
H1( " --avcintra-class <integer> Use compatibility hacks for AVC-Intra class\n"
" - 50, 100, 200\n" );
H1( " --stitchable Don't optimize headers based on video content\n"
" Ensures ability to recombine a segmented encode\n" );
H1( "\n" );
H1( " -v, --verbose Print stats for each frame\n" );
H1( " --no-progress Don't show the progress indicator while encoding\n" );
H0( " --quiet Quiet Mode\n" );
H1( " --log-level <string> Specify the maximum level of logging [\"%s\"]\n"
" - %s\n", strtable_lookup( log_level_names, cli_log_level - X264_LOG_NONE ),
stringify_names( buf, log_level_names ) );
H1( " --psnr Enable PSNR computation\n" );
H1( " --ssim Enable SSIM computation\n" );
H1( " --threads <integer> Force a specific number of threads\n" );
H2( " --lookahead-threads <integer> Force a specific number of lookahead threads\n" );
H2( " --sliced-threads Low-latency but lower-efficiency threading\n" );
H2( " --thread-input Run Avisynth in its own thread\n" );
H2( " --sync-lookahead <integer> Number of buffer frames for threaded lookahead\n" );
H2( " --non-deterministic Slightly improve quality of SMP, at the cost of repeatability\n" );
H2( " --cpu-independent Ensure exact reproducibility across different cpus,\n"
" as opposed to letting them select different algorithms\n" );
H2( " --asm <integer> Override CPU detection\n" );
H2( " --no-asm Disable all CPU optimizations\n" );
H2( " --opencl Enable use of OpenCL\n" );
H2( " --opencl-clbin <string> Specify path of compiled OpenCL kernel cache\n" );
H2( " --opencl-device <integer> Specify OpenCL device ordinal\n" );
H2( " --dump-yuv <string> Save reconstructed frames\n" );
H2( " --sps-id <integer> Set SPS and PPS id numbers [%d]\n", defaults->i_sps_id );
H2( " --aud Use access unit delimiters\n" );
H2( " --force-cfr Force constant framerate timestamp generation\n" );
H2( " --tcfile-in <string> Force timestamp generation with timecode file\n" );
H2( " --tcfile-out <string> Output timecode v2 file from input timestamps\n" );
H2( " --timebase <int/int> Specify timebase numerator and denominator\n"
" <integer> Specify timebase numerator for input timecode file\n"
" or specify timebase denominator for other input\n" );
H2( " --dts-compress Eliminate initial delay with container DTS hack\n" );
H0( "\n" );
H0( "Filtering:\n" );
H0( "\n" );
H0( " --vf, --video-filter <filter0>/<filter1>/... Apply video filtering to the input file\n" );
H0( "\n" );
H0( " Filter options may be specified in <filter>:<option>=<value> format.\n" );
H0( "\n" );
H0( " Available filters:\n" );
x264_register_vid_filters();
x264_vid_filter_help( longhelp );
H0( "\n" );
}
typedef enum
{
OPT_FRAMES = 256,
OPT_SEEK,
OPT_QPFILE,
OPT_THREAD_INPUT,
OPT_QUIET,
OPT_NOPROGRESS,
OPT_LONGHELP,
OPT_PROFILE,
OPT_PRESET,
OPT_TUNE,
OPT_SLOWFIRSTPASS,
OPT_FULLHELP,
OPT_FPS,
OPT_MUXER,
OPT_DEMUXER,
OPT_INDEX,
OPT_INTERLACED,
OPT_TCFILE_IN,
OPT_TCFILE_OUT,
OPT_TIMEBASE,
OPT_PULLDOWN,
OPT_LOG_LEVEL,
OPT_VIDEO_FILTER,
OPT_INPUT_FMT,
OPT_INPUT_RES,
OPT_INPUT_CSP,
OPT_INPUT_DEPTH,
OPT_DTS_COMPRESSION,
OPT_OUTPUT_CSP,
OPT_INPUT_RANGE,
OPT_RANGE
} OptionsOPT;
static char short_options[] = "8A:B:b:f:hI:i:m:o:p:q:r:t:Vvw";
static struct option long_options[] =
{
{ "help", no_argument, NULL, 'h' },
{ "longhelp", no_argument, NULL, OPT_LONGHELP },
{ "fullhelp", no_argument, NULL, OPT_FULLHELP },
{ "version", no_argument, NULL, 'V' },
{ "profile", required_argument, NULL, OPT_PROFILE },
{ "preset", required_argument, NULL, OPT_PRESET },
{ "tune", required_argument, NULL, OPT_TUNE },
{ "slow-firstpass", no_argument, NULL, OPT_SLOWFIRSTPASS },
{ "bitrate", required_argument, NULL, 'B' },
{ "bframes", required_argument, NULL, 'b' },
{ "b-adapt", required_argument, NULL, 0 },
{ "no-b-adapt", no_argument, NULL, 0 },
{ "b-bias", required_argument, NULL, 0 },
{ "b-pyramid", required_argument, NULL, 0 },
{ "open-gop", no_argument, NULL, 0 },
{ "bluray-compat", no_argument, NULL, 0 },
{ "avcintra-class", required_argument, NULL, 0 },
{ "min-keyint", required_argument, NULL, 'i' },