Implement size autodetection if one of the width and height
[libav.git] / cmdutils.c
CommitLineData
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1/*
2 * Various utilities for command line tools
3 * Copyright (c) 2000-2003 Fabrice Bellard
4 *
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5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
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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,
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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
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22#include <string.h>
23#include <stdlib.h>
24#include <errno.h>
7c84b8bc 25#include <math.h>
0f4e8165 26
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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 32#include "libavformat/avformat.h"
2cd39dbf 33#ifdef CONFIG_AVFILTER
245976da 34#include "libavfilter/avfilter.h"
2cd39dbf 35#endif
245976da 36#include "libavdevice/avdevice.h"
db6d50c7 37#include "libswscale/swscale.h"
2cd39dbf 38#ifdef CONFIG_POSTPROC
1981deaf 39#include "libpostproc/postprocess.h"
2cd39dbf 40#endif
245976da 41#include "libavutil/avstring.h"
85663ef3 42#include "libavcodec/opt.h"
01310af2 43#include "cmdutils.h"
86074ed1 44#include "version.h"
0b705fa4 45#ifdef CONFIG_NETWORK
245976da 46#include "libavformat/network.h"
0b705fa4 47#endif
01310af2 48
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49#undef exit
50
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51const char **opt_names;
52static int opt_name_count;
53AVCodecContext *avctx_opts[CODEC_TYPE_NB];
54AVFormatContext *avformat_opts;
55struct SwsContext *sws_opts;
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56
57double parse_number_or_die(const char *context, const char *numstr, int type, double min, double max)
58{
59 char *tail;
60 const char *error;
61 double d = strtod(numstr, &tail);
62 if (*tail)
63 error= "Expected number for %s but found: %s\n";
64 else if (d < min || d > max)
65 error= "The value for %s was %s which is not within %f - %f\n";
66 else if(type == OPT_INT64 && (int64_t)d != d)
67 error= "Expected int64 for %s but found %s\n";
68 else
69 return d;
70 fprintf(stderr, error, context, numstr, min, max);
71 exit(1);
72}
73
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74int64_t parse_time_or_die(const char *context, const char *timestr, int is_duration)
75{
76 int64_t us = parse_date(timestr, is_duration);
77 if (us == INT64_MIN) {
78 fprintf(stderr, "Invalid %s specification for %s: %s\n",
79 is_duration ? "duration" : "date", context, timestr);
80 exit(1);
81 }
82 return us;
83}
84
02d504a7 85void show_help_options(const OptionDef *options, const char *msg, int mask, int value)
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86{
87 const OptionDef *po;
02d504a7 88 int first;
01310af2 89
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90 first = 1;
91 for(po = options; po->name != NULL; po++) {
92 char buf[64];
93 if ((po->flags & mask) == value) {
94 if (first) {
95 printf("%s", msg);
96 first = 0;
97 }
f7d78f36 98 av_strlcpy(buf, po->name, sizeof(buf));
02d504a7 99 if (po->flags & HAS_ARG) {
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100 av_strlcat(buf, " ", sizeof(buf));
101 av_strlcat(buf, po->argname, sizeof(buf));
01310af2 102 }
02d504a7 103 printf("-%-17s %s\n", buf, po->help);
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104 }
105 }
106}
107
fccfc475 108static const OptionDef* find_option(const OptionDef *po, const char *name){
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109 while (po->name != NULL) {
110 if (!strcmp(name, po->name))
111 break;
112 po++;
113 }
114 return po;
115}
116
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117void parse_options(int argc, char **argv, const OptionDef *options,
118 void (* parse_arg_function)(const char*))
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119{
120 const char *opt, *arg;
b0d7bc1e 121 int optindex, handleoptions=1;
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122 const OptionDef *po;
123
124 /* parse options */
125 optindex = 1;
126 while (optindex < argc) {
127 opt = argv[optindex++];
115329f1 128
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129 if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
130 if (opt[1] == '-' && opt[2] == '\0') {
131 handleoptions = 0;
132 continue;
133 }
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134 po= find_option(options, opt + 1);
135 if (!po->name)
136 po= find_option(options, "default");
01310af2 137 if (!po->name) {
8bbf6db9 138unknown_opt:
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139 fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], opt);
140 exit(1);
141 }
142 arg = NULL;
143 if (po->flags & HAS_ARG) {
144 arg = argv[optindex++];
145 if (!arg) {
146 fprintf(stderr, "%s: missing argument for option '%s'\n", argv[0], opt);
147 exit(1);
148 }
149 }
150 if (po->flags & OPT_STRING) {
151 char *str;
02d504a7 152 str = av_strdup(arg);
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153 *po->u.str_arg = str;
154 } else if (po->flags & OPT_BOOL) {
155 *po->u.int_arg = 1;
26d4f26b 156 } else if (po->flags & OPT_INT) {
7c84b8bc 157 *po->u.int_arg = parse_number_or_die(opt+1, arg, OPT_INT64, INT_MIN, INT_MAX);
ffdf9a1f 158 } else if (po->flags & OPT_INT64) {
7c84b8bc 159 *po->u.int64_arg = parse_number_or_die(opt+1, arg, OPT_INT64, INT64_MIN, INT64_MAX);
1f631450 160 } else if (po->flags & OPT_FLOAT) {
1f3d74d3 161 *po->u.float_arg = parse_number_or_die(opt+1, arg, OPT_FLOAT, -1.0/0.0, 1.0/0.0);
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162 } else if (po->flags & OPT_FUNC2) {
163 if(po->u.func2_arg(opt+1, arg)<0)
164 goto unknown_opt;
01310af2 165 } else {
bb270c08 166 po->u.func_arg(arg);
01310af2 167 }
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168 if(po->flags & OPT_EXIT)
169 exit(0);
01310af2 170 } else {
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171 if (parse_arg_function)
172 parse_arg_function(opt);
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173 }
174 }
175}
176
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177int opt_default(const char *opt, const char *arg){
178 int type;
5c3383e5 179 int ret= 0;
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180 const AVOption *o= NULL;
181 int opt_types[]={AV_OPT_FLAG_VIDEO_PARAM, AV_OPT_FLAG_AUDIO_PARAM, 0, AV_OPT_FLAG_SUBTITLE_PARAM, 0};
182
5c3383e5 183 for(type=0; type<CODEC_TYPE_NB && ret>= 0; type++){
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184 const AVOption *o2 = av_find_opt(avctx_opts[0], opt, NULL, opt_types[type], opt_types[type]);
185 if(o2)
5c3383e5 186 ret = av_set_string3(avctx_opts[type], opt, arg, 1, &o);
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187 }
188 if(!o)
5c3383e5 189 ret = av_set_string3(avformat_opts, opt, arg, 1, &o);
85663ef3 190 if(!o)
5c3383e5 191 ret = av_set_string3(sws_opts, opt, arg, 1, &o);
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192 if(!o){
193 if(opt[0] == 'a')
5c3383e5 194 ret = av_set_string3(avctx_opts[CODEC_TYPE_AUDIO], opt+1, arg, 1, &o);
85663ef3 195 else if(opt[0] == 'v')
5c3383e5 196 ret = av_set_string3(avctx_opts[CODEC_TYPE_VIDEO], opt+1, arg, 1, &o);
85663ef3 197 else if(opt[0] == 's')
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198 ret = av_set_string3(avctx_opts[CODEC_TYPE_SUBTITLE], opt+1, arg, 1, &o);
199 }
200 if (o && ret < 0) {
201 fprintf(stderr, "Invalid value '%s' for option '%s'\n", arg, opt);
202 exit(1);
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203 }
204 if(!o)
205 return -1;
206
207// av_log(NULL, AV_LOG_ERROR, "%s:%s: %f 0x%0X\n", opt, arg, av_get_double(avctx_opts, opt, NULL), (int)av_get_int(avctx_opts, opt, NULL));
208
209 //FIXME we should always use avctx_opts, ... for storing options so there will not be any need to keep track of what i set over this
210 opt_names= av_realloc(opt_names, sizeof(void*)*(opt_name_count+1));
211 opt_names[opt_name_count++]= o->name;
212
213 if(avctx_opts[0]->debug || avformat_opts->debug)
214 av_log_set_level(AV_LOG_DEBUG);
215 return 0;
216}
217
218void set_context_opts(void *ctx, void *opts_ctx, int flags)
219{
220 int i;
221 for(i=0; i<opt_name_count; i++){
222 char buf[256];
223 const AVOption *opt;
224 const char *str= av_get_string(opts_ctx, opt_names[i], &opt, buf, sizeof(buf));
225 /* if an option with name opt_names[i] is present in opts_ctx then str is non-NULL */
226 if(str && ((opt->flags & flags) == flags))
227 av_set_string2(ctx, opt_names[i], str, 1);
228 }
229}
230
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231void print_error(const char *filename, int err)
232{
233 switch(err) {
234 case AVERROR_NUMEXPECTED:
235 fprintf(stderr, "%s: Incorrect image filename syntax.\n"
236 "Use '%%d' to specify the image number:\n"
237 " for img1.jpg, img2.jpg, ..., use 'img%%d.jpg';\n"
115329f1 238 " for img001.jpg, img002.jpg, ..., use 'img%%03d.jpg'.\n",
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239 filename);
240 break;
241 case AVERROR_INVALIDDATA:
242 fprintf(stderr, "%s: Error while parsing header\n", filename);
243 break;
244 case AVERROR_NOFMT:
245 fprintf(stderr, "%s: Unknown format\n", filename);
246 break;
6f3e0b21 247 case AVERROR(EIO):
d9526386 248 fprintf(stderr, "%s: I/O error occurred\n"
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DB
249 "Usually that means that input file is truncated and/or corrupted.\n",
250 filename);
45ce5ddb 251 break;
769e10f0 252 case AVERROR(ENOMEM):
d9526386 253 fprintf(stderr, "%s: memory allocation error occurred\n", filename);
45ce5ddb 254 break;
24fddf48 255 case AVERROR(ENOENT):
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256 fprintf(stderr, "%s: no such file or directory\n", filename);
257 break;
0b705fa4 258#ifdef CONFIG_NETWORK
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259 case AVERROR(FF_NETERROR(EPROTONOSUPPORT)):
260 fprintf(stderr, "%s: Unsupported network protocol\n", filename);
261 break;
0b705fa4 262#endif
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263 default:
264 fprintf(stderr, "%s: Error while opening file\n", filename);
265 break;
266 }
267}
f35917b2 268
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269#define PRINT_LIB_VERSION(outstream,libname,LIBNAME,indent) \
270 version= libname##_version(); \
271 fprintf(outstream, "%slib%-10s %2d.%2d.%2d / %2d.%2d.%2d\n", indent? " " : "", #libname, \
272 LIB##LIBNAME##_VERSION_MAJOR, LIB##LIBNAME##_VERSION_MINOR, LIB##LIBNAME##_VERSION_MICRO, \
273 version >> 16, version >> 8 & 0xff, version & 0xff);
274
88b77ef1 275static void print_all_lib_versions(FILE* outstream, int indent)
9a109272
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276{
277 unsigned int version;
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278 PRINT_LIB_VERSION(outstream, avutil, AVUTIL, indent);
279 PRINT_LIB_VERSION(outstream, avcodec, AVCODEC, indent);
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280 PRINT_LIB_VERSION(outstream, avformat, AVFORMAT, indent);
281 PRINT_LIB_VERSION(outstream, avdevice, AVDEVICE, indent);
a14b362f 282#ifdef CONFIG_AVFILTER
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283 PRINT_LIB_VERSION(outstream, avfilter, AVFILTER, indent);
284#endif
a14b362f 285#ifdef CONFIG_SWSCALE
e9df66a7 286 PRINT_LIB_VERSION(outstream, swscale, SWSCALE, indent);
db6d50c7 287#endif
a14b362f 288#ifdef CONFIG_POSTPROC
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289 PRINT_LIB_VERSION(outstream, postproc, POSTPROC, indent);
290#endif
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291}
292
ea9c581f 293void show_banner(void)
86074ed1 294{
69c12fbb 295 fprintf(stderr, "%s version " FFMPEG_VERSION ", Copyright (c) %d-2008 Fabrice Bellard, et al.\n",
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296 program_name, program_birth_year);
297 fprintf(stderr, " configuration: " FFMPEG_CONFIGURATION "\n");
9a109272 298 print_all_lib_versions(stderr, 1);
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299 fprintf(stderr, " built on " __DATE__ " " __TIME__);
300#ifdef __GNUC__
301 fprintf(stderr, ", gcc: " __VERSION__ "\n");
302#else
303 fprintf(stderr, ", using a non-gcc compiler\n");
304#endif
305}
306
64555bd9 307void show_version(void) {
86074ed1 308 printf("%s " FFMPEG_VERSION "\n", program_name);
9a109272 309 print_all_lib_versions(stdout, 0);
86074ed1
SS
310}
311
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312void show_license(void)
313{
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DB
314#ifdef CONFIG_NONFREE
315 printf(
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316 "This version of %s has nonfree parts compiled in.\n"
317 "Therefore it is not legally redistributable.\n",
318 program_name
7ead693b
DB
319 );
320#elif CONFIG_GPL
f35917b2 321 printf(
304ba23a 322 "%s is free software; you can redistribute it and/or modify\n"
f35917b2
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323 "it under the terms of the GNU General Public License as published by\n"
324 "the Free Software Foundation; either version 2 of the License, or\n"
325 "(at your option) any later version.\n"
326 "\n"
304ba23a 327 "%s is distributed in the hope that it will be useful,\n"
f35917b2
SS
328 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
329 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
330 "GNU General Public License for more details.\n"
331 "\n"
332 "You should have received a copy of the GNU General Public License\n"
304ba23a
SS
333 "along with %s; if not, write to the Free Software\n"
334 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
335 program_name, program_name, program_name
f35917b2
SS
336 );
337#else
338 printf(
304ba23a 339 "%s is free software; you can redistribute it and/or\n"
f35917b2
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340 "modify it under the terms of the GNU Lesser General Public\n"
341 "License as published by the Free Software Foundation; either\n"
342 "version 2.1 of the License, or (at your option) any later version.\n"
343 "\n"
304ba23a 344 "%s is distributed in the hope that it will be useful,\n"
f35917b2
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345 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
346 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
347 "Lesser General Public License for more details.\n"
348 "\n"
349 "You should have received a copy of the GNU Lesser General Public\n"
304ba23a
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350 "License along with %s; if not, write to the Free Software\n"
351 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
352 program_name, program_name, program_name
f35917b2
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353 );
354#endif
355}
ba9880c1
SS
356
357void show_formats(void)
358{
359 AVInputFormat *ifmt=NULL;
360 AVOutputFormat *ofmt=NULL;
361 URLProtocol *up=NULL;
362 AVCodec *p=NULL, *p2;
363 AVBitStreamFilter *bsf=NULL;
364 const char *last_name;
365
366 printf("File formats:\n");
367 last_name= "000";
368 for(;;){
369 int decode=0;
370 int encode=0;
371 const char *name=NULL;
372 const char *long_name=NULL;
373
374 while((ofmt= av_oformat_next(ofmt))) {
375 if((name == NULL || strcmp(ofmt->name, name)<0) &&
376 strcmp(ofmt->name, last_name)>0){
377 name= ofmt->name;
378 long_name= ofmt->long_name;
379 encode=1;
380 }
381 }
382 while((ifmt= av_iformat_next(ifmt))) {
383 if((name == NULL || strcmp(ifmt->name, name)<0) &&
384 strcmp(ifmt->name, last_name)>0){
385 name= ifmt->name;
386 long_name= ifmt->long_name;
387 encode=0;
388 }
389 if(name && strcmp(ifmt->name, name)==0)
390 decode=1;
391 }
392 if(name==NULL)
393 break;
394 last_name= name;
395
396 printf(
397 " %s%s %-15s %s\n",
398 decode ? "D":" ",
399 encode ? "E":" ",
400 name,
401 long_name ? long_name:" ");
402 }
403 printf("\n");
404
405 printf("Codecs:\n");
406 last_name= "000";
407 for(;;){
408 int decode=0;
409 int encode=0;
410 int cap=0;
411 const char *type_str;
412
413 p2=NULL;
414 while((p= av_codec_next(p))) {
415 if((p2==NULL || strcmp(p->name, p2->name)<0) &&
416 strcmp(p->name, last_name)>0){
417 p2= p;
418 decode= encode= cap=0;
419 }
420 if(p2 && strcmp(p->name, p2->name)==0){
421 if(p->decode) decode=1;
422 if(p->encode) encode=1;
423 cap |= p->capabilities;
424 }
425 }
426 if(p2==NULL)
427 break;
428 last_name= p2->name;
429
430 switch(p2->type) {
431 case CODEC_TYPE_VIDEO:
432 type_str = "V";
433 break;
434 case CODEC_TYPE_AUDIO:
435 type_str = "A";
436 break;
437 case CODEC_TYPE_SUBTITLE:
438 type_str = "S";
439 break;
440 default:
441 type_str = "?";
442 break;
443 }
444 printf(
445 " %s%s%s%s%s%s %-15s %s",
446 decode ? "D": (/*p2->decoder ? "d":*/" "),
447 encode ? "E":" ",
448 type_str,
449 cap & CODEC_CAP_DRAW_HORIZ_BAND ? "S":" ",
450 cap & CODEC_CAP_DR1 ? "D":" ",
451 cap & CODEC_CAP_TRUNCATED ? "T":" ",
452 p2->name,
453 p2->long_name ? p2->long_name : "");
454 /* if(p2->decoder && decode==0)
455 printf(" use %s for decoding", p2->decoder->name);*/
456 printf("\n");
457 }
458 printf("\n");
459
460 printf("Bitstream filters:\n");
461 while((bsf = av_bitstream_filter_next(bsf)))
462 printf(" %s", bsf->name);
463 printf("\n");
464
465 printf("Supported file protocols:\n");
466 while((up = av_protocol_next(up)))
467 printf(" %s:", up->name);
468 printf("\n");
469
470 printf("Frame size, frame rate abbreviations:\n ntsc pal qntsc qpal sntsc spal film ntsc-film sqcif qcif cif 4cif\n");
471 printf("\n");
472 printf(
473"Note, the names of encoders and decoders do not always match, so there are\n"
474"several cases where the above table shows encoder only or decoder only entries\n"
475"even though both encoding and decoding are supported. For example, the h263\n"
476"decoder corresponds to the h263 and h263p encoders, for file formats it is even\n"
477"worse.\n");
478}