Fix memleak on some OSes in case network initialization fails. See
[libav.git] / cmdutils.c
1 /*
2 * Various utilities for command line tools
3 * Copyright (c) 2000-2003 Fabrice Bellard
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
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
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include <string.h>
23 #include <stdlib.h>
24 #include <errno.h>
25 #include <math.h>
26
27 #include "config.h"
28 #include "libavformat/avformat.h"
29 #include "libavfilter/avfilter.h"
30 #include "libavdevice/avdevice.h"
31 #include "libavutil/avstring.h"
32 #include "cmdutils.h"
33 #include "version.h"
34 #ifdef CONFIG_NETWORK
35 #include "libavformat/network.h"
36 #endif
37
38 #undef exit
39
40
41 double parse_number_or_die(const char *context, const char *numstr, int type, double min, double max)
42 {
43 char *tail;
44 const char *error;
45 double d = strtod(numstr, &tail);
46 if (*tail)
47 error= "Expected number for %s but found: %s\n";
48 else if (d < min || d > max)
49 error= "The value for %s was %s which is not within %f - %f\n";
50 else if(type == OPT_INT64 && (int64_t)d != d)
51 error= "Expected int64 for %s but found %s\n";
52 else
53 return d;
54 fprintf(stderr, error, context, numstr, min, max);
55 exit(1);
56 }
57
58 int64_t parse_time_or_die(const char *context, const char *timestr, int is_duration)
59 {
60 int64_t us = parse_date(timestr, is_duration);
61 if (us == INT64_MIN) {
62 fprintf(stderr, "Invalid %s specification for %s: %s\n",
63 is_duration ? "duration" : "date", context, timestr);
64 exit(1);
65 }
66 return us;
67 }
68
69 void show_help_options(const OptionDef *options, const char *msg, int mask, int value)
70 {
71 const OptionDef *po;
72 int first;
73
74 first = 1;
75 for(po = options; po->name != NULL; po++) {
76 char buf[64];
77 if ((po->flags & mask) == value) {
78 if (first) {
79 printf("%s", msg);
80 first = 0;
81 }
82 av_strlcpy(buf, po->name, sizeof(buf));
83 if (po->flags & HAS_ARG) {
84 av_strlcat(buf, " ", sizeof(buf));
85 av_strlcat(buf, po->argname, sizeof(buf));
86 }
87 printf("-%-17s %s\n", buf, po->help);
88 }
89 }
90 }
91
92 static const OptionDef* find_option(const OptionDef *po, const char *name){
93 while (po->name != NULL) {
94 if (!strcmp(name, po->name))
95 break;
96 po++;
97 }
98 return po;
99 }
100
101 void parse_options(int argc, char **argv, const OptionDef *options,
102 void (* parse_arg_function)(const char*))
103 {
104 const char *opt, *arg;
105 int optindex, handleoptions=1;
106 const OptionDef *po;
107
108 /* parse options */
109 optindex = 1;
110 while (optindex < argc) {
111 opt = argv[optindex++];
112
113 if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
114 if (opt[1] == '-' && opt[2] == '\0') {
115 handleoptions = 0;
116 continue;
117 }
118 po= find_option(options, opt + 1);
119 if (!po->name)
120 po= find_option(options, "default");
121 if (!po->name) {
122 unknown_opt:
123 fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], opt);
124 exit(1);
125 }
126 arg = NULL;
127 if (po->flags & HAS_ARG) {
128 arg = argv[optindex++];
129 if (!arg) {
130 fprintf(stderr, "%s: missing argument for option '%s'\n", argv[0], opt);
131 exit(1);
132 }
133 }
134 if (po->flags & OPT_STRING) {
135 char *str;
136 str = av_strdup(arg);
137 *po->u.str_arg = str;
138 } else if (po->flags & OPT_BOOL) {
139 *po->u.int_arg = 1;
140 } else if (po->flags & OPT_INT) {
141 *po->u.int_arg = parse_number_or_die(opt+1, arg, OPT_INT64, INT_MIN, INT_MAX);
142 } else if (po->flags & OPT_INT64) {
143 *po->u.int64_arg = parse_number_or_die(opt+1, arg, OPT_INT64, INT64_MIN, INT64_MAX);
144 } else if (po->flags & OPT_FLOAT) {
145 *po->u.float_arg = parse_number_or_die(opt+1, arg, OPT_FLOAT, -1.0/0.0, 1.0/0.0);
146 } else if (po->flags & OPT_FUNC2) {
147 if(po->u.func2_arg(opt+1, arg)<0)
148 goto unknown_opt;
149 } else {
150 po->u.func_arg(arg);
151 }
152 if(po->flags & OPT_EXIT)
153 exit(0);
154 } else {
155 if (parse_arg_function)
156 parse_arg_function(opt);
157 }
158 }
159 }
160
161 void print_error(const char *filename, int err)
162 {
163 switch(err) {
164 case AVERROR_NUMEXPECTED:
165 fprintf(stderr, "%s: Incorrect image filename syntax.\n"
166 "Use '%%d' to specify the image number:\n"
167 " for img1.jpg, img2.jpg, ..., use 'img%%d.jpg';\n"
168 " for img001.jpg, img002.jpg, ..., use 'img%%03d.jpg'.\n",
169 filename);
170 break;
171 case AVERROR_INVALIDDATA:
172 fprintf(stderr, "%s: Error while parsing header\n", filename);
173 break;
174 case AVERROR_NOFMT:
175 fprintf(stderr, "%s: Unknown format\n", filename);
176 break;
177 case AVERROR(EIO):
178 fprintf(stderr, "%s: I/O error occurred\n"
179 "Usually that means that input file is truncated and/or corrupted.\n",
180 filename);
181 break;
182 case AVERROR(ENOMEM):
183 fprintf(stderr, "%s: memory allocation error occurred\n", filename);
184 break;
185 case AVERROR(ENOENT):
186 fprintf(stderr, "%s: no such file or directory\n", filename);
187 break;
188 #ifdef CONFIG_NETWORK
189 case AVERROR(FF_NETERROR(EPROTONOSUPPORT)):
190 fprintf(stderr, "%s: Unsupported network protocol\n", filename);
191 break;
192 #endif
193 default:
194 fprintf(stderr, "%s: Error while opening file\n", filename);
195 break;
196 }
197 }
198
199 #define PRINT_LIB_VERSION(outstream,libname,LIBNAME,indent) \
200 version= libname##_version(); \
201 fprintf(outstream, "%slib%-10s %2d.%2d.%2d / %2d.%2d.%2d\n", indent? " " : "", #libname, \
202 LIB##LIBNAME##_VERSION_MAJOR, LIB##LIBNAME##_VERSION_MINOR, LIB##LIBNAME##_VERSION_MICRO, \
203 version >> 16, version >> 8 & 0xff, version & 0xff);
204
205 void print_all_lib_versions(FILE* outstream, int indent)
206 {
207 unsigned int version;
208 PRINT_LIB_VERSION(outstream, avutil, AVUTIL, indent);
209 PRINT_LIB_VERSION(outstream, avcodec, AVCODEC, indent);
210 PRINT_LIB_VERSION(outstream, avformat, AVFORMAT, indent);
211 PRINT_LIB_VERSION(outstream, avdevice, AVDEVICE, indent);
212 #if ENABLE_AVFILTER
213 PRINT_LIB_VERSION(outstream, avfilter, AVFILTER, indent);
214 #endif
215 }
216
217 void show_banner(void)
218 {
219 fprintf(stderr, "%s version " FFMPEG_VERSION ", Copyright (c) %d-2008 Fabrice Bellard, et al.\n",
220 program_name, program_birth_year);
221 fprintf(stderr, " configuration: " FFMPEG_CONFIGURATION "\n");
222 print_all_lib_versions(stderr, 1);
223 fprintf(stderr, " built on " __DATE__ " " __TIME__);
224 #ifdef __GNUC__
225 fprintf(stderr, ", gcc: " __VERSION__ "\n");
226 #else
227 fprintf(stderr, ", using a non-gcc compiler\n");
228 #endif
229 }
230
231 void show_version(void) {
232 printf("%s " FFMPEG_VERSION "\n", program_name);
233 print_all_lib_versions(stdout, 0);
234 }
235
236 void show_license(void)
237 {
238 #ifdef CONFIG_NONFREE
239 printf(
240 "This version of %s has nonfree parts compiled in.\n"
241 "Therefore it is not legally redistributable.\n",
242 program_name
243 );
244 #elif CONFIG_GPL
245 printf(
246 "%s is free software; you can redistribute it and/or modify\n"
247 "it under the terms of the GNU General Public License as published by\n"
248 "the Free Software Foundation; either version 2 of the License, or\n"
249 "(at your option) any later version.\n"
250 "\n"
251 "%s is distributed in the hope that it will be useful,\n"
252 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
253 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
254 "GNU General Public License for more details.\n"
255 "\n"
256 "You should have received a copy of the GNU General Public License\n"
257 "along with %s; if not, write to the Free Software\n"
258 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
259 program_name, program_name, program_name
260 );
261 #else
262 printf(
263 "%s is free software; you can redistribute it and/or\n"
264 "modify it under the terms of the GNU Lesser General Public\n"
265 "License as published by the Free Software Foundation; either\n"
266 "version 2.1 of the License, or (at your option) any later version.\n"
267 "\n"
268 "%s is distributed in the hope that it will be useful,\n"
269 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
270 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
271 "Lesser General Public License for more details.\n"
272 "\n"
273 "You should have received a copy of the GNU Lesser General Public\n"
274 "License along with %s; if not, write to the Free Software\n"
275 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
276 program_name, program_name, program_name
277 );
278 #endif
279 }
280
281 void show_formats(void)
282 {
283 AVInputFormat *ifmt=NULL;
284 AVOutputFormat *ofmt=NULL;
285 URLProtocol *up=NULL;
286 AVCodec *p=NULL, *p2;
287 AVBitStreamFilter *bsf=NULL;
288 const char *last_name;
289
290 printf("File formats:\n");
291 last_name= "000";
292 for(;;){
293 int decode=0;
294 int encode=0;
295 const char *name=NULL;
296 const char *long_name=NULL;
297
298 while((ofmt= av_oformat_next(ofmt))) {
299 if((name == NULL || strcmp(ofmt->name, name)<0) &&
300 strcmp(ofmt->name, last_name)>0){
301 name= ofmt->name;
302 long_name= ofmt->long_name;
303 encode=1;
304 }
305 }
306 while((ifmt= av_iformat_next(ifmt))) {
307 if((name == NULL || strcmp(ifmt->name, name)<0) &&
308 strcmp(ifmt->name, last_name)>0){
309 name= ifmt->name;
310 long_name= ifmt->long_name;
311 encode=0;
312 }
313 if(name && strcmp(ifmt->name, name)==0)
314 decode=1;
315 }
316 if(name==NULL)
317 break;
318 last_name= name;
319
320 printf(
321 " %s%s %-15s %s\n",
322 decode ? "D":" ",
323 encode ? "E":" ",
324 name,
325 long_name ? long_name:" ");
326 }
327 printf("\n");
328
329 printf("Codecs:\n");
330 last_name= "000";
331 for(;;){
332 int decode=0;
333 int encode=0;
334 int cap=0;
335 const char *type_str;
336
337 p2=NULL;
338 while((p= av_codec_next(p))) {
339 if((p2==NULL || strcmp(p->name, p2->name)<0) &&
340 strcmp(p->name, last_name)>0){
341 p2= p;
342 decode= encode= cap=0;
343 }
344 if(p2 && strcmp(p->name, p2->name)==0){
345 if(p->decode) decode=1;
346 if(p->encode) encode=1;
347 cap |= p->capabilities;
348 }
349 }
350 if(p2==NULL)
351 break;
352 last_name= p2->name;
353
354 switch(p2->type) {
355 case CODEC_TYPE_VIDEO:
356 type_str = "V";
357 break;
358 case CODEC_TYPE_AUDIO:
359 type_str = "A";
360 break;
361 case CODEC_TYPE_SUBTITLE:
362 type_str = "S";
363 break;
364 default:
365 type_str = "?";
366 break;
367 }
368 printf(
369 " %s%s%s%s%s%s %-15s %s",
370 decode ? "D": (/*p2->decoder ? "d":*/" "),
371 encode ? "E":" ",
372 type_str,
373 cap & CODEC_CAP_DRAW_HORIZ_BAND ? "S":" ",
374 cap & CODEC_CAP_DR1 ? "D":" ",
375 cap & CODEC_CAP_TRUNCATED ? "T":" ",
376 p2->name,
377 p2->long_name ? p2->long_name : "");
378 /* if(p2->decoder && decode==0)
379 printf(" use %s for decoding", p2->decoder->name);*/
380 printf("\n");
381 }
382 printf("\n");
383
384 printf("Bitstream filters:\n");
385 while((bsf = av_bitstream_filter_next(bsf)))
386 printf(" %s", bsf->name);
387 printf("\n");
388
389 printf("Supported file protocols:\n");
390 while((up = av_protocol_next(up)))
391 printf(" %s:", up->name);
392 printf("\n");
393
394 printf("Frame size, frame rate abbreviations:\n ntsc pal qntsc qpal sntsc spal film ntsc-film sqcif qcif cif 4cif\n");
395 printf("\n");
396 printf(
397 "Note, the names of encoders and decoders do not always match, so there are\n"
398 "several cases where the above table shows encoder only or decoder only entries\n"
399 "even though both encoding and decoding are supported. For example, the h263\n"
400 "decoder corresponds to the h263 and h263p encoders, for file formats it is even\n"
401 "worse.\n");
402 }