Optimize decode_cabac_field_decoding_flag().
[libav.git] / cmdutils.c
CommitLineData
01310af2
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1/*
2 * Various utilities for command line tools
3 * Copyright (c) 2000-2003 Fabrice Bellard
4 *
b78e7197
DB
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
01310af2
FB
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
b78e7197 10 * version 2.1 of the License, or (at your option) any later version.
01310af2 11 *
b78e7197 12 * FFmpeg is distributed in the hope that it will be useful,
01310af2
FB
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
b78e7197 18 * License along with FFmpeg; if not, write to the Free Software
5509bffa 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
01310af2 20 */
364a9607 21
0f4e8165
RB
22#include <string.h>
23#include <stdlib.h>
24#include <errno.h>
7c84b8bc 25#include <math.h>
0f4e8165 26
2cd39dbf
DP
27/* Include only the enabled headers since some compilers (namely, Sun
28 Studio) will not omit unused inline functions and create undefined
29 references to libraries that are not being built. */
30
63d026b1 31#include "config.h"
245976da
DB
32#include "libavformat/avformat.h"
33#include "libavfilter/avfilter.h"
34#include "libavdevice/avdevice.h"
db6d50c7 35#include "libswscale/swscale.h"
1981deaf 36#include "libpostproc/postprocess.h"
245976da 37#include "libavutil/avstring.h"
85663ef3 38#include "libavcodec/opt.h"
01310af2 39#include "cmdutils.h"
86074ed1 40#include "version.h"
da2dc39e 41#if CONFIG_NETWORK
245976da 42#include "libavformat/network.h"
da2dc39e 43#endif
ffcc6e24
MR
44#if HAVE_SYS_RESOURCE_H
45#include <sys/resource.h>
46#endif
01310af2 47
c367d067
MN
48#undef exit
49
85663ef3
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50const char **opt_names;
51static int opt_name_count;
636f1c4c 52AVCodecContext *avcodec_opts[CODEC_TYPE_NB];
85663ef3
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53AVFormatContext *avformat_opts;
54struct SwsContext *sws_opts;
086ab001 55
7a78bc85 56const int this_year = 2010;
ef4c0bb1 57
086ab001
MN
58double parse_number_or_die(const char *context, const char *numstr, int type, double min, double max)
59{
60 char *tail;
61 const char *error;
62 double d = strtod(numstr, &tail);
63 if (*tail)
64 error= "Expected number for %s but found: %s\n";
65 else if (d < min || d > max)
66 error= "The value for %s was %s which is not within %f - %f\n";
67 else if(type == OPT_INT64 && (int64_t)d != d)
68 error= "Expected int64 for %s but found %s\n";
69 else
70 return d;
71 fprintf(stderr, error, context, numstr, min, max);
72 exit(1);
73}
74
7542157d
SS
75int64_t parse_time_or_die(const char *context, const char *timestr, int is_duration)
76{
77 int64_t us = parse_date(timestr, is_duration);
78 if (us == INT64_MIN) {
79 fprintf(stderr, "Invalid %s specification for %s: %s\n",
80 is_duration ? "duration" : "date", context, timestr);
81 exit(1);
82 }
83 return us;
84}
85
02d504a7 86void show_help_options(const OptionDef *options, const char *msg, int mask, int value)
01310af2
FB
87{
88 const OptionDef *po;
02d504a7 89 int first;
01310af2 90
02d504a7
FB
91 first = 1;
92 for(po = options; po->name != NULL; po++) {
93 char buf[64];
94 if ((po->flags & mask) == value) {
95 if (first) {
96 printf("%s", msg);
97 first = 0;
98 }
f7d78f36 99 av_strlcpy(buf, po->name, sizeof(buf));
02d504a7 100 if (po->flags & HAS_ARG) {
f7d78f36
MR
101 av_strlcat(buf, " ", sizeof(buf));
102 av_strlcat(buf, po->argname, sizeof(buf));
01310af2 103 }
02d504a7 104 printf("-%-17s %s\n", buf, po->help);
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105 }
106 }
107}
108
fccfc475 109static const OptionDef* find_option(const OptionDef *po, const char *name){
8bbf6db9
MN
110 while (po->name != NULL) {
111 if (!strcmp(name, po->name))
112 break;
113 po++;
114 }
115 return po;
116}
117
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SS
118void parse_options(int argc, char **argv, const OptionDef *options,
119 void (* parse_arg_function)(const char*))
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FB
120{
121 const char *opt, *arg;
b0d7bc1e 122 int optindex, handleoptions=1;
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123 const OptionDef *po;
124
125 /* parse options */
126 optindex = 1;
127 while (optindex < argc) {
128 opt = argv[optindex++];
115329f1 129
84bf226b 130 if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
b1d6e5e8 131 int bool_val = 1;
3749076c
SS
132 if (opt[1] == '-' && opt[2] == '\0') {
133 handleoptions = 0;
134 continue;
135 }
c3c78324
SS
136 opt++;
137 po= find_option(options, opt);
138 if (!po->name && opt[0] == 'n' && opt[1] == 'o') {
b1d6e5e8 139 /* handle 'no' bool option */
c3c78324 140 po = find_option(options, opt + 2);
b1d6e5e8
BF
141 if (!(po->name && (po->flags & OPT_BOOL)))
142 goto unknown_opt;
143 bool_val = 0;
144 }
8bbf6db9
MN
145 if (!po->name)
146 po= find_option(options, "default");
01310af2 147 if (!po->name) {
8bbf6db9 148unknown_opt:
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FB
149 fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], opt);
150 exit(1);
151 }
152 arg = NULL;
153 if (po->flags & HAS_ARG) {
154 arg = argv[optindex++];
155 if (!arg) {
156 fprintf(stderr, "%s: missing argument for option '%s'\n", argv[0], opt);
157 exit(1);
158 }
159 }
160 if (po->flags & OPT_STRING) {
161 char *str;
02d504a7 162 str = av_strdup(arg);
01310af2
FB
163 *po->u.str_arg = str;
164 } else if (po->flags & OPT_BOOL) {
b1d6e5e8 165 *po->u.int_arg = bool_val;
26d4f26b 166 } else if (po->flags & OPT_INT) {
c3c78324 167 *po->u.int_arg = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
ffdf9a1f 168 } else if (po->flags & OPT_INT64) {
c3c78324 169 *po->u.int64_arg = parse_number_or_die(opt, arg, OPT_INT64, INT64_MIN, INT64_MAX);
1f631450 170 } else if (po->flags & OPT_FLOAT) {
c3c78324 171 *po->u.float_arg = parse_number_or_die(opt, arg, OPT_FLOAT, -1.0/0.0, 1.0/0.0);
8bbf6db9 172 } else if (po->flags & OPT_FUNC2) {
c3c78324 173 if(po->u.func2_arg(opt, arg)<0)
8bbf6db9 174 goto unknown_opt;
01310af2 175 } else {
bb270c08 176 po->u.func_arg(arg);
01310af2 177 }
a0b3bcd9
MN
178 if(po->flags & OPT_EXIT)
179 exit(0);
01310af2 180 } else {
60a9966e
SS
181 if (parse_arg_function)
182 parse_arg_function(opt);
01310af2
FB
183 }
184 }
185}
186
85663ef3
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187int opt_default(const char *opt, const char *arg){
188 int type;
5c3383e5 189 int ret= 0;
85663ef3
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190 const AVOption *o= NULL;
191 int opt_types[]={AV_OPT_FLAG_VIDEO_PARAM, AV_OPT_FLAG_AUDIO_PARAM, 0, AV_OPT_FLAG_SUBTITLE_PARAM, 0};
192
5c3383e5 193 for(type=0; type<CODEC_TYPE_NB && ret>= 0; type++){
636f1c4c 194 const AVOption *o2 = av_find_opt(avcodec_opts[0], opt, NULL, opt_types[type], opt_types[type]);
85663ef3 195 if(o2)
636f1c4c 196 ret = av_set_string3(avcodec_opts[type], opt, arg, 1, &o);
85663ef3
MN
197 }
198 if(!o)
5c3383e5 199 ret = av_set_string3(avformat_opts, opt, arg, 1, &o);
85663ef3 200 if(!o)
5c3383e5 201 ret = av_set_string3(sws_opts, opt, arg, 1, &o);
85663ef3
MN
202 if(!o){
203 if(opt[0] == 'a')
636f1c4c 204 ret = av_set_string3(avcodec_opts[CODEC_TYPE_AUDIO], opt+1, arg, 1, &o);
85663ef3 205 else if(opt[0] == 'v')
636f1c4c 206 ret = av_set_string3(avcodec_opts[CODEC_TYPE_VIDEO], opt+1, arg, 1, &o);
85663ef3 207 else if(opt[0] == 's')
636f1c4c 208 ret = av_set_string3(avcodec_opts[CODEC_TYPE_SUBTITLE], opt+1, arg, 1, &o);
5c3383e5
SS
209 }
210 if (o && ret < 0) {
211 fprintf(stderr, "Invalid value '%s' for option '%s'\n", arg, opt);
212 exit(1);
85663ef3
MN
213 }
214 if(!o)
215 return -1;
216
636f1c4c 217// av_log(NULL, AV_LOG_ERROR, "%s:%s: %f 0x%0X\n", opt, arg, av_get_double(avcodec_opts, opt, NULL), (int)av_get_int(avcodec_opts, opt, NULL));
85663ef3 218
636f1c4c 219 //FIXME we should always use avcodec_opts, ... for storing options so there will not be any need to keep track of what i set over this
85663ef3
MN
220 opt_names= av_realloc(opt_names, sizeof(void*)*(opt_name_count+1));
221 opt_names[opt_name_count++]= o->name;
222
636f1c4c 223 if(avcodec_opts[0]->debug || avformat_opts->debug)
85663ef3
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224 av_log_set_level(AV_LOG_DEBUG);
225 return 0;
226}
227
4c97a6fa
SS
228int opt_loglevel(const char *opt, const char *arg)
229{
da4c2dab 230 const struct { const char *name; int level; } log_levels[] = {
4c97a6fa
SS
231 { "quiet" , AV_LOG_QUIET },
232 { "panic" , AV_LOG_PANIC },
233 { "fatal" , AV_LOG_FATAL },
234 { "error" , AV_LOG_ERROR },
235 { "warning", AV_LOG_WARNING },
236 { "info" , AV_LOG_INFO },
237 { "verbose", AV_LOG_VERBOSE },
238 { "debug" , AV_LOG_DEBUG },
239 };
240 char *tail;
241 int level;
242 int i;
243
244 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) {
245 if (!strcmp(log_levels[i].name, arg)) {
246 av_log_set_level(log_levels[i].level);
247 return 0;
248 }
249 }
250
251 level = strtol(arg, &tail, 10);
252 if (*tail) {
253 fprintf(stderr, "Invalid loglevel \"%s\". "
254 "Possible levels are numbers or:\n", arg);
255 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++)
256 fprintf(stderr, "\"%s\"\n", log_levels[i].name);
257 exit(1);
258 }
259 av_log_set_level(level);
260 return 0;
261}
262
ffcc6e24
MR
263int opt_timelimit(const char *opt, const char *arg)
264{
265#if HAVE_SYS_RESOURCE_H
266 int lim = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
267 struct rlimit rl = { lim, lim + 1 };
268 if (setrlimit(RLIMIT_CPU, &rl))
269 perror("setrlimit");
270#else
271 fprintf(stderr, "Warning: -%s not implemented on this OS\n", opt);
272#endif
273 return 0;
274}
275
85663ef3
MN
276void set_context_opts(void *ctx, void *opts_ctx, int flags)
277{
278 int i;
279 for(i=0; i<opt_name_count; i++){
280 char buf[256];
281 const AVOption *opt;
282 const char *str= av_get_string(opts_ctx, opt_names[i], &opt, buf, sizeof(buf));
283 /* if an option with name opt_names[i] is present in opts_ctx then str is non-NULL */
284 if(str && ((opt->flags & flags) == flags))
f16dd7e6 285 av_set_string3(ctx, opt_names[i], str, 1, NULL);
85663ef3
MN
286 }
287}
288
01310af2
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289void print_error(const char *filename, int err)
290{
291 switch(err) {
292 case AVERROR_NUMEXPECTED:
293 fprintf(stderr, "%s: Incorrect image filename syntax.\n"
294 "Use '%%d' to specify the image number:\n"
295 " for img1.jpg, img2.jpg, ..., use 'img%%d.jpg';\n"
115329f1 296 " for img001.jpg, img002.jpg, ..., use 'img%%03d.jpg'.\n",
01310af2
FB
297 filename);
298 break;
299 case AVERROR_INVALIDDATA:
300 fprintf(stderr, "%s: Error while parsing header\n", filename);
301 break;
302 case AVERROR_NOFMT:
303 fprintf(stderr, "%s: Unknown format\n", filename);
304 break;
6f3e0b21 305 case AVERROR(EIO):
d9526386 306 fprintf(stderr, "%s: I/O error occurred\n"
bb270c08
DB
307 "Usually that means that input file is truncated and/or corrupted.\n",
308 filename);
45ce5ddb 309 break;
769e10f0 310 case AVERROR(ENOMEM):
d9526386 311 fprintf(stderr, "%s: memory allocation error occurred\n", filename);
45ce5ddb 312 break;
24fddf48 313 case AVERROR(ENOENT):
0ba0c8de
BF
314 fprintf(stderr, "%s: no such file or directory\n", filename);
315 break;
b250f9c6 316#if CONFIG_NETWORK
18ec0460
LB
317 case AVERROR(FF_NETERROR(EPROTONOSUPPORT)):
318 fprintf(stderr, "%s: Unsupported network protocol\n", filename);
319 break;
0b705fa4 320#endif
01310af2
FB
321 default:
322 fprintf(stderr, "%s: Error while opening file\n", filename);
323 break;
324 }
325}
f35917b2 326
9a109272
SS
327#define PRINT_LIB_VERSION(outstream,libname,LIBNAME,indent) \
328 version= libname##_version(); \
329 fprintf(outstream, "%slib%-10s %2d.%2d.%2d / %2d.%2d.%2d\n", indent? " " : "", #libname, \
330 LIB##LIBNAME##_VERSION_MAJOR, LIB##LIBNAME##_VERSION_MINOR, LIB##LIBNAME##_VERSION_MICRO, \
331 version >> 16, version >> 8 & 0xff, version & 0xff);
332
88b77ef1 333static void print_all_lib_versions(FILE* outstream, int indent)
9a109272
SS
334{
335 unsigned int version;
e9df66a7
SS
336 PRINT_LIB_VERSION(outstream, avutil, AVUTIL, indent);
337 PRINT_LIB_VERSION(outstream, avcodec, AVCODEC, indent);
9a109272
SS
338 PRINT_LIB_VERSION(outstream, avformat, AVFORMAT, indent);
339 PRINT_LIB_VERSION(outstream, avdevice, AVDEVICE, indent);
b250f9c6 340#if CONFIG_AVFILTER
9a109272
SS
341 PRINT_LIB_VERSION(outstream, avfilter, AVFILTER, indent);
342#endif
e9df66a7 343 PRINT_LIB_VERSION(outstream, swscale, SWSCALE, indent);
b250f9c6 344#if CONFIG_POSTPROC
1981deaf
SS
345 PRINT_LIB_VERSION(outstream, postproc, POSTPROC, indent);
346#endif
9a109272
SS
347}
348
ea9c581f 349void show_banner(void)
86074ed1 350{
ef4c0bb1
SS
351 fprintf(stderr, "%s version " FFMPEG_VERSION ", Copyright (c) %d-%d Fabrice Bellard, et al.\n",
352 program_name, program_birth_year, this_year);
a3d7c197
DB
353 fprintf(stderr, " built on %s %s with %s %s\n",
354 __DATE__, __TIME__, CC_TYPE, CC_VERSION);
5c1f57ff
DB
355 fprintf(stderr, " configuration: " FFMPEG_CONFIGURATION "\n");
356 print_all_lib_versions(stderr, 1);
86074ed1
SS
357}
358
64555bd9 359void show_version(void) {
86074ed1 360 printf("%s " FFMPEG_VERSION "\n", program_name);
9a109272 361 print_all_lib_versions(stdout, 0);
86074ed1
SS
362}
363
f35917b2
SS
364void show_license(void)
365{
7ead693b 366 printf(
3bf28f9d 367#if CONFIG_NONFREE
304ba23a
SS
368 "This version of %s has nonfree parts compiled in.\n"
369 "Therefore it is not legally redistributable.\n",
370 program_name
9cad0e4e
DB
371#elif CONFIG_GPLV3
372 "%s is free software; you can redistribute it and/or modify\n"
373 "it under the terms of the GNU General Public License as published by\n"
374 "the Free Software Foundation; either version 3 of the License, or\n"
375 "(at your option) any later version.\n"
376 "\n"
377 "%s is distributed in the hope that it will be useful,\n"
378 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
379 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
380 "GNU General Public License for more details.\n"
381 "\n"
382 "You should have received a copy of the GNU General Public License\n"
383 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
384 program_name, program_name, program_name
7ead693b 385#elif CONFIG_GPL
304ba23a 386 "%s is free software; you can redistribute it and/or modify\n"
f35917b2
SS
387 "it under the terms of the GNU General Public License as published by\n"
388 "the Free Software Foundation; either version 2 of the License, or\n"
389 "(at your option) any later version.\n"
390 "\n"
304ba23a 391 "%s is distributed in the hope that it will be useful,\n"
f35917b2
SS
392 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
393 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
394 "GNU General Public License for more details.\n"
395 "\n"
396 "You should have received a copy of the GNU General Public License\n"
304ba23a
SS
397 "along with %s; if not, write to the Free Software\n"
398 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
399 program_name, program_name, program_name
9cad0e4e
DB
400#elif CONFIG_LGPLV3
401 "%s is free software; you can redistribute it and/or modify\n"
402 "it under the terms of the GNU Lesser General Public License as published by\n"
403 "the Free Software Foundation; either version 3 of the License, or\n"
404 "(at your option) any later version.\n"
405 "\n"
406 "%s is distributed in the hope that it will be useful,\n"
407 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
408 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
409 "GNU Lesser General Public License for more details.\n"
410 "\n"
411 "You should have received a copy of the GNU Lesser General Public License\n"
412 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
413 program_name, program_name, program_name
f35917b2 414#else
304ba23a 415 "%s is free software; you can redistribute it and/or\n"
f35917b2
SS
416 "modify it under the terms of the GNU Lesser General Public\n"
417 "License as published by the Free Software Foundation; either\n"
418 "version 2.1 of the License, or (at your option) any later version.\n"
419 "\n"
304ba23a 420 "%s is distributed in the hope that it will be useful,\n"
f35917b2
SS
421 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
422 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
423 "Lesser General Public License for more details.\n"
424 "\n"
425 "You should have received a copy of the GNU Lesser General Public\n"
304ba23a
SS
426 "License along with %s; if not, write to the Free Software\n"
427 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
428 program_name, program_name, program_name
f35917b2 429#endif
3bf28f9d 430 );
f35917b2 431}
ba9880c1 432
c5dc6026
SS
433void list_fmts(void (*get_fmt_string)(char *buf, int buf_size, int fmt), int nb_fmts)
434{
435 int i;
436 char fmt_str[128];
437 for (i=-1; i < nb_fmts; i++) {
438 get_fmt_string (fmt_str, sizeof(fmt_str), i);
439 fprintf(stdout, "%s\n", fmt_str);
440 }
441}
442
ba9880c1
SS
443void show_formats(void)
444{
445 AVInputFormat *ifmt=NULL;
446 AVOutputFormat *ofmt=NULL;
ba9880c1
SS
447 const char *last_name;
448
5a8597a0
WZ
449 printf(
450 "File formats:\n"
451 " D. = Demuxing supported\n"
452 " .E = Muxing supported\n"
453 " --\n");
ba9880c1
SS
454 last_name= "000";
455 for(;;){
456 int decode=0;
457 int encode=0;
458 const char *name=NULL;
459 const char *long_name=NULL;
460
461 while((ofmt= av_oformat_next(ofmt))) {
462 if((name == NULL || strcmp(ofmt->name, name)<0) &&
463 strcmp(ofmt->name, last_name)>0){
464 name= ofmt->name;
465 long_name= ofmt->long_name;
466 encode=1;
467 }
468 }
469 while((ifmt= av_iformat_next(ifmt))) {
470 if((name == NULL || strcmp(ifmt->name, name)<0) &&
471 strcmp(ifmt->name, last_name)>0){
472 name= ifmt->name;
473 long_name= ifmt->long_name;
474 encode=0;
475 }
476 if(name && strcmp(ifmt->name, name)==0)
477 decode=1;
478 }
479 if(name==NULL)
480 break;
481 last_name= name;
482
483 printf(
484 " %s%s %-15s %s\n",
485 decode ? "D":" ",
486 encode ? "E":" ",
487 name,
488 long_name ? long_name:" ");
489 }
8447f0bd 490}
ba9880c1 491
8447f0bd
MN
492void show_codecs(void)
493{
494 AVCodec *p=NULL, *p2;
495 const char *last_name;
5a8597a0
WZ
496 printf(
497 "Codecs:\n"
498 " D..... = Decoding supported\n"
499 " .E.... = Encoding supported\n"
500 " ..V... = Video codec\n"
501 " ..A... = Audio codec\n"
502 " ..S... = Subtitle codec\n"
503 " ...S.. = Supports draw_horiz_band\n"
504 " ....D. = Supports direct rendering method 1\n"
505 " .....T = Supports weird frame truncation\n"
506 " ------\n");
ba9880c1
SS
507 last_name= "000";
508 for(;;){
509 int decode=0;
510 int encode=0;
511 int cap=0;
512 const char *type_str;
513
514 p2=NULL;
515 while((p= av_codec_next(p))) {
516 if((p2==NULL || strcmp(p->name, p2->name)<0) &&
517 strcmp(p->name, last_name)>0){
518 p2= p;
519 decode= encode= cap=0;
520 }
521 if(p2 && strcmp(p->name, p2->name)==0){
522 if(p->decode) decode=1;
523 if(p->encode) encode=1;
524 cap |= p->capabilities;
525 }
526 }
527 if(p2==NULL)
528 break;
529 last_name= p2->name;
530
531 switch(p2->type) {
532 case CODEC_TYPE_VIDEO:
533 type_str = "V";
534 break;
535 case CODEC_TYPE_AUDIO:
536 type_str = "A";
537 break;
538 case CODEC_TYPE_SUBTITLE:
539 type_str = "S";
540 break;
541 default:
542 type_str = "?";
543 break;
544 }
545 printf(
546 " %s%s%s%s%s%s %-15s %s",
547 decode ? "D": (/*p2->decoder ? "d":*/" "),
548 encode ? "E":" ",
549 type_str,
550 cap & CODEC_CAP_DRAW_HORIZ_BAND ? "S":" ",
551 cap & CODEC_CAP_DR1 ? "D":" ",
552 cap & CODEC_CAP_TRUNCATED ? "T":" ",
553 p2->name,
554 p2->long_name ? p2->long_name : "");
555 /* if(p2->decoder && decode==0)
556 printf(" use %s for decoding", p2->decoder->name);*/
557 printf("\n");
558 }
559 printf("\n");
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560 printf(
561"Note, the names of encoders and decoders do not always match, so there are\n"
562"several cases where the above table shows encoder only or decoder only entries\n"
563"even though both encoding and decoding are supported. For example, the h263\n"
564"decoder corresponds to the h263 and h263p encoders, for file formats it is even\n"
565"worse.\n");
566}
567
568void show_bsfs(void)
569{
570 AVBitStreamFilter *bsf=NULL;
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571
572 printf("Bitstream filters:\n");
573 while((bsf = av_bitstream_filter_next(bsf)))
2091b27b 574 printf("%s\n", bsf->name);
ba9880c1 575 printf("\n");
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576}
577
578void show_protocols(void)
579{
580 URLProtocol *up=NULL;
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581
582 printf("Supported file protocols:\n");
583 while((up = av_protocol_next(up)))
2cb2d6f0 584 printf("%s\n", up->name);
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585 printf("\n");
586
587 printf("Frame size, frame rate abbreviations:\n ntsc pal qntsc qpal sntsc spal film ntsc-film sqcif qcif cif 4cif\n");
ba9880c1 588}
090b61b2 589
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590void show_filters(void)
591{
78638628 592 AVFilter av_unused(**filter) = NULL;
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593
594 printf("Filters:\n");
663c2edf 595#if CONFIG_AVFILTER
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596 while ((filter = av_filter_next(filter)) && *filter)
597 printf("%-16s %s\n", (*filter)->name, (*filter)->description);
663c2edf 598#endif
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599}
600
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601void show_pix_fmts(void)
602{
603 list_fmts(avcodec_pix_fmt_string, PIX_FMT_NB);
604}
605
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606int read_yesno(void)
607{
608 int c = getchar();
609 int yesno = (toupper(c) == 'Y');
610
611 while (c != '\n' && c != EOF)
612 c = getchar();
613
614 return yesno;
615}