2 * Various utilities for command line tools
3 * Copyright (c) 2000-2003 Fabrice Bellard
5 * This file is part of FFmpeg.
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.
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.
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
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. */
32 #include "libavformat/avformat.h"
33 #include "libavfilter/avfilter.h"
34 #include "libavdevice/avdevice.h"
35 #include "libswscale/swscale.h"
36 #include "libpostproc/postprocess.h"
37 #include "libavutil/avstring.h"
38 #include "libavutil/pixdesc.h"
39 #include "libavcodec/opt.h"
43 #include "libavformat/network.h"
45 #if HAVE_SYS_RESOURCE_H
46 #include <sys/resource.h>
49 const char **opt_names;
50 static int opt_name_count;
51 AVCodecContext *avcodec_opts[AVMEDIA_TYPE_NB];
52 AVFormatContext *avformat_opts;
53 struct SwsContext *sws_opts;
55 const int this_year = 2010;
57 double parse_number_or_die(const char *context, const char *numstr, int type, double min, double max)
61 double d = strtod(numstr, &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";
70 fprintf(stderr, error, context, numstr, min, max);
74 int64_t parse_time_or_die(const char *context, const char *timestr, int is_duration)
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);
85 void show_help_options(const OptionDef *options, const char *msg, int mask, int value)
91 for(po = options; po->name != NULL; po++) {
93 if ((po->flags & mask) == value) {
98 av_strlcpy(buf, po->name, sizeof(buf));
99 if (po->flags & HAS_ARG) {
100 av_strlcat(buf, " ", sizeof(buf));
101 av_strlcat(buf, po->argname, sizeof(buf));
103 printf("-%-17s %s\n", buf, po->help);
108 static const OptionDef* find_option(const OptionDef *po, const char *name){
109 while (po->name != NULL) {
110 if (!strcmp(name, po->name))
117 void parse_options(int argc, char **argv, const OptionDef *options,
118 void (* parse_arg_function)(const char*))
120 const char *opt, *arg;
121 int optindex, handleoptions=1;
126 while (optindex < argc) {
127 opt = argv[optindex++];
129 if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
131 if (opt[1] == '-' && opt[2] == '\0') {
136 po= find_option(options, opt);
137 if (!po->name && opt[0] == 'n' && opt[1] == 'o') {
138 /* handle 'no' bool option */
139 po = find_option(options, opt + 2);
140 if (!(po->name && (po->flags & OPT_BOOL)))
145 po= find_option(options, "default");
148 fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], opt);
152 if (po->flags & HAS_ARG) {
153 arg = argv[optindex++];
155 fprintf(stderr, "%s: missing argument for option '%s'\n", argv[0], opt);
159 if (po->flags & OPT_STRING) {
161 str = av_strdup(arg);
162 *po->u.str_arg = str;
163 } else if (po->flags & OPT_BOOL) {
164 *po->u.int_arg = bool_val;
165 } else if (po->flags & OPT_INT) {
166 *po->u.int_arg = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
167 } else if (po->flags & OPT_INT64) {
168 *po->u.int64_arg = parse_number_or_die(opt, arg, OPT_INT64, INT64_MIN, INT64_MAX);
169 } else if (po->flags & OPT_FLOAT) {
170 *po->u.float_arg = parse_number_or_die(opt, arg, OPT_FLOAT, -1.0/0.0, 1.0/0.0);
171 } else if (po->flags & OPT_FUNC2) {
172 if (po->u.func2_arg(opt, arg) < 0) {
173 fprintf(stderr, "%s: failed to set value '%s' for option '%s'\n", argv[0], arg, opt);
179 if(po->flags & OPT_EXIT)
182 if (parse_arg_function)
183 parse_arg_function(opt);
188 int opt_default(const char *opt, const char *arg){
191 const AVOption *o= NULL;
192 int opt_types[]={AV_OPT_FLAG_VIDEO_PARAM, AV_OPT_FLAG_AUDIO_PARAM, 0, AV_OPT_FLAG_SUBTITLE_PARAM, 0};
194 for(type=0; type<AVMEDIA_TYPE_NB && ret>= 0; type++){
195 const AVOption *o2 = av_find_opt(avcodec_opts[0], opt, NULL, opt_types[type], opt_types[type]);
197 ret = av_set_string3(avcodec_opts[type], opt, arg, 1, &o);
200 ret = av_set_string3(avformat_opts, opt, arg, 1, &o);
202 ret = av_set_string3(sws_opts, opt, arg, 1, &o);
205 ret = av_set_string3(avcodec_opts[AVMEDIA_TYPE_AUDIO], opt+1, arg, 1, &o);
206 else if(opt[0] == 'v')
207 ret = av_set_string3(avcodec_opts[AVMEDIA_TYPE_VIDEO], opt+1, arg, 1, &o);
208 else if(opt[0] == 's')
209 ret = av_set_string3(avcodec_opts[AVMEDIA_TYPE_SUBTITLE], opt+1, arg, 1, &o);
212 fprintf(stderr, "Invalid value '%s' for option '%s'\n", arg, opt);
216 fprintf(stderr, "Unrecognized option '%s'\n", opt);
220 // 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));
222 //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
223 opt_names= av_realloc(opt_names, sizeof(void*)*(opt_name_count+1));
224 opt_names[opt_name_count++]= o->name;
226 if(avcodec_opts[0]->debug || avformat_opts->debug)
227 av_log_set_level(AV_LOG_DEBUG);
231 int opt_loglevel(const char *opt, const char *arg)
233 const struct { const char *name; int level; } log_levels[] = {
234 { "quiet" , AV_LOG_QUIET },
235 { "panic" , AV_LOG_PANIC },
236 { "fatal" , AV_LOG_FATAL },
237 { "error" , AV_LOG_ERROR },
238 { "warning", AV_LOG_WARNING },
239 { "info" , AV_LOG_INFO },
240 { "verbose", AV_LOG_VERBOSE },
241 { "debug" , AV_LOG_DEBUG },
247 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) {
248 if (!strcmp(log_levels[i].name, arg)) {
249 av_log_set_level(log_levels[i].level);
254 level = strtol(arg, &tail, 10);
256 fprintf(stderr, "Invalid loglevel \"%s\". "
257 "Possible levels are numbers or:\n", arg);
258 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++)
259 fprintf(stderr, "\"%s\"\n", log_levels[i].name);
262 av_log_set_level(level);
266 int opt_timelimit(const char *opt, const char *arg)
269 int lim = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
270 struct rlimit rl = { lim, lim + 1 };
271 if (setrlimit(RLIMIT_CPU, &rl))
274 fprintf(stderr, "Warning: -%s not implemented on this OS\n", opt);
279 void set_context_opts(void *ctx, void *opts_ctx, int flags)
282 for(i=0; i<opt_name_count; i++){
285 const char *str= av_get_string(opts_ctx, opt_names[i], &opt, buf, sizeof(buf));
286 /* if an option with name opt_names[i] is present in opts_ctx then str is non-NULL */
287 if(str && ((opt->flags & flags) == flags))
288 av_set_string3(ctx, opt_names[i], str, 1, NULL);
292 void print_error(const char *filename, int err)
295 const char *errbuf_ptr = errbuf;
299 case FF_NETERROR(EPROTONOSUPPORT):
300 fprintf(stderr, "%s: Unsupported network protocol\n", filename);
304 if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
305 errbuf_ptr = strerror(AVUNERROR(err));
306 fprintf(stderr, "%s: %s\n", filename, errbuf_ptr);
310 #define PRINT_LIB_VERSION(outstream,libname,LIBNAME,indent) \
311 if (CONFIG_##LIBNAME) { \
312 unsigned int version = libname##_version(); \
313 fprintf(outstream, "%slib%-10s %2d.%2d.%2d / %2d.%2d.%2d\n", \
314 indent? " " : "", #libname, \
315 LIB##LIBNAME##_VERSION_MAJOR, \
316 LIB##LIBNAME##_VERSION_MINOR, \
317 LIB##LIBNAME##_VERSION_MICRO, \
318 version >> 16, version >> 8 & 0xff, version & 0xff); \
321 static void print_all_lib_versions(FILE* outstream, int indent)
323 PRINT_LIB_VERSION(outstream, avutil, AVUTIL, indent);
324 PRINT_LIB_VERSION(outstream, avcodec, AVCODEC, indent);
325 PRINT_LIB_VERSION(outstream, avformat, AVFORMAT, indent);
326 PRINT_LIB_VERSION(outstream, avdevice, AVDEVICE, indent);
327 PRINT_LIB_VERSION(outstream, avfilter, AVFILTER, indent);
328 PRINT_LIB_VERSION(outstream, swscale, SWSCALE, indent);
329 PRINT_LIB_VERSION(outstream, postproc, POSTPROC, indent);
332 static void maybe_print_config(const char *lib, const char *cfg)
334 static int warned_cfg;
336 if (strcmp(FFMPEG_CONFIGURATION, cfg)) {
338 fprintf(stderr, " WARNING: library configuration mismatch\n");
341 fprintf(stderr, " %-11s configuration: %s\n", lib, cfg);
345 #define PRINT_LIB_CONFIG(lib, tag, cfg) do { \
347 maybe_print_config(tag, cfg); \
350 void show_banner(void)
352 fprintf(stderr, "%s version " FFMPEG_VERSION ", Copyright (c) %d-%d the FFmpeg developers\n",
353 program_name, program_birth_year, this_year);
354 fprintf(stderr, " built on %s %s with %s %s\n",
355 __DATE__, __TIME__, CC_TYPE, CC_VERSION);
356 fprintf(stderr, " configuration: " FFMPEG_CONFIGURATION "\n");
357 PRINT_LIB_CONFIG(AVUTIL, "libavutil", avutil_configuration());
358 PRINT_LIB_CONFIG(AVCODEC, "libavcodec", avcodec_configuration());
359 PRINT_LIB_CONFIG(AVFORMAT, "libavformat", avformat_configuration());
360 PRINT_LIB_CONFIG(AVDEVICE, "libavdevice", avdevice_configuration());
361 PRINT_LIB_CONFIG(AVFILTER, "libavfilter", avfilter_configuration());
362 PRINT_LIB_CONFIG(SWSCALE, "libswscale", swscale_configuration());
363 PRINT_LIB_CONFIG(POSTPROC, "libpostproc", postproc_configuration());
364 print_all_lib_versions(stderr, 1);
367 void show_version(void) {
368 printf("%s " FFMPEG_VERSION "\n", program_name);
369 print_all_lib_versions(stdout, 0);
372 void show_license(void)
376 "This version of %s has nonfree parts compiled in.\n"
377 "Therefore it is not legally redistributable.\n",
380 "%s is free software; you can redistribute it and/or modify\n"
381 "it under the terms of the GNU General Public License as published by\n"
382 "the Free Software Foundation; either version 3 of the License, or\n"
383 "(at your option) any later version.\n"
385 "%s is distributed in the hope that it will be useful,\n"
386 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
387 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
388 "GNU General Public License for more details.\n"
390 "You should have received a copy of the GNU General Public License\n"
391 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
392 program_name, program_name, program_name
394 "%s is free software; you can redistribute it and/or modify\n"
395 "it under the terms of the GNU General Public License as published by\n"
396 "the Free Software Foundation; either version 2 of the License, or\n"
397 "(at your option) any later version.\n"
399 "%s is distributed in the hope that it will be useful,\n"
400 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
401 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
402 "GNU General Public License for more details.\n"
404 "You should have received a copy of the GNU General Public License\n"
405 "along with %s; if not, write to the Free Software\n"
406 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
407 program_name, program_name, program_name
409 "%s is free software; you can redistribute it and/or modify\n"
410 "it under the terms of the GNU Lesser General Public License as published by\n"
411 "the Free Software Foundation; either version 3 of the License, or\n"
412 "(at your option) any later version.\n"
414 "%s is distributed in the hope that it will be useful,\n"
415 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
416 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
417 "GNU Lesser General Public License for more details.\n"
419 "You should have received a copy of the GNU Lesser General Public License\n"
420 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
421 program_name, program_name, program_name
423 "%s is free software; you can redistribute it and/or\n"
424 "modify it under the terms of the GNU Lesser General Public\n"
425 "License as published by the Free Software Foundation; either\n"
426 "version 2.1 of the License, or (at your option) any later version.\n"
428 "%s is distributed in the hope that it will be useful,\n"
429 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
430 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
431 "Lesser General Public License for more details.\n"
433 "You should have received a copy of the GNU Lesser General Public\n"
434 "License along with %s; if not, write to the Free Software\n"
435 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
436 program_name, program_name, program_name
441 void list_fmts(void (*get_fmt_string)(char *buf, int buf_size, int fmt), int nb_fmts)
445 for (i=-1; i < nb_fmts; i++) {
446 get_fmt_string (fmt_str, sizeof(fmt_str), i);
447 fprintf(stdout, "%s\n", fmt_str);
451 void show_formats(void)
453 AVInputFormat *ifmt=NULL;
454 AVOutputFormat *ofmt=NULL;
455 const char *last_name;
459 " D. = Demuxing supported\n"
460 " .E = Muxing supported\n"
466 const char *name=NULL;
467 const char *long_name=NULL;
469 while((ofmt= av_oformat_next(ofmt))) {
470 if((name == NULL || strcmp(ofmt->name, name)<0) &&
471 strcmp(ofmt->name, last_name)>0){
473 long_name= ofmt->long_name;
477 while((ifmt= av_iformat_next(ifmt))) {
478 if((name == NULL || strcmp(ifmt->name, name)<0) &&
479 strcmp(ifmt->name, last_name)>0){
481 long_name= ifmt->long_name;
484 if(name && strcmp(ifmt->name, name)==0)
496 long_name ? long_name:" ");
500 void show_codecs(void)
502 AVCodec *p=NULL, *p2;
503 const char *last_name;
506 " D..... = Decoding supported\n"
507 " .E.... = Encoding supported\n"
508 " ..V... = Video codec\n"
509 " ..A... = Audio codec\n"
510 " ..S... = Subtitle codec\n"
511 " ...S.. = Supports draw_horiz_band\n"
512 " ....D. = Supports direct rendering method 1\n"
513 " .....T = Supports weird frame truncation\n"
520 const char *type_str;
523 while((p= av_codec_next(p))) {
524 if((p2==NULL || strcmp(p->name, p2->name)<0) &&
525 strcmp(p->name, last_name)>0){
527 decode= encode= cap=0;
529 if(p2 && strcmp(p->name, p2->name)==0){
530 if(p->decode) decode=1;
531 if(p->encode) encode=1;
532 cap |= p->capabilities;
540 case AVMEDIA_TYPE_VIDEO:
543 case AVMEDIA_TYPE_AUDIO:
546 case AVMEDIA_TYPE_SUBTITLE:
554 " %s%s%s%s%s%s %-15s %s",
555 decode ? "D": (/*p2->decoder ? "d":*/" "),
558 cap & CODEC_CAP_DRAW_HORIZ_BAND ? "S":" ",
559 cap & CODEC_CAP_DR1 ? "D":" ",
560 cap & CODEC_CAP_TRUNCATED ? "T":" ",
562 p2->long_name ? p2->long_name : "");
563 /* if(p2->decoder && decode==0)
564 printf(" use %s for decoding", p2->decoder->name);*/
569 "Note, the names of encoders and decoders do not always match, so there are\n"
570 "several cases where the above table shows encoder only or decoder only entries\n"
571 "even though both encoding and decoding are supported. For example, the h263\n"
572 "decoder corresponds to the h263 and h263p encoders, for file formats it is even\n"
578 AVBitStreamFilter *bsf=NULL;
580 printf("Bitstream filters:\n");
581 while((bsf = av_bitstream_filter_next(bsf)))
582 printf("%s\n", bsf->name);
586 void show_protocols(void)
588 URLProtocol *up=NULL;
590 printf("Supported file protocols:\n");
591 while((up = av_protocol_next(up)))
592 printf("%s\n", up->name);
595 void show_filters(void)
597 AVFilter av_unused(**filter) = NULL;
599 printf("Filters:\n");
601 while ((filter = av_filter_next(filter)) && *filter)
602 printf("%-16s %s\n", (*filter)->name, (*filter)->description);
606 void show_pix_fmts(void)
608 enum PixelFormat pix_fmt;
612 "I.... = Supported Input format for conversion\n"
613 ".O... = Supported Output format for conversion\n"
614 "..H.. = Hardware accelerated format\n"
615 "...P. = Paletted format\n"
616 "....B = Bitstream format\n"
617 "FLAGS NAME NB_COMPONENTS BITS_PER_PIXEL\n"
620 for (pix_fmt = 0; pix_fmt < PIX_FMT_NB; pix_fmt++) {
621 const AVPixFmtDescriptor *pix_desc = &av_pix_fmt_descriptors[pix_fmt];
622 printf("%c%c%c%c%c %-16s %d %2d\n",
623 sws_isSupportedInput (pix_fmt) ? 'I' : '.',
624 sws_isSupportedOutput(pix_fmt) ? 'O' : '.',
625 pix_desc->flags & PIX_FMT_HWACCEL ? 'H' : '.',
626 pix_desc->flags & PIX_FMT_PAL ? 'P' : '.',
627 pix_desc->flags & PIX_FMT_BITSTREAM ? 'B' : '.',
629 pix_desc->nb_components,
630 av_get_bits_per_pixel(pix_desc));
637 int yesno = (toupper(c) == 'Y');
639 while (c != '\n' && c != EOF)
645 int read_file(const char *filename, char **bufptr, size_t *size)
647 FILE *f = fopen(filename, "r");
650 fprintf(stderr, "Cannot read file '%s': %s\n", filename, strerror(errno));
651 return AVERROR(errno);
653 fseek(f, 0, SEEK_END);
655 fseek(f, 0, SEEK_SET);
656 *bufptr = av_malloc(*size + 1);
658 fprintf(stderr, "Could not allocate file buffer\n");
660 return AVERROR(ENOMEM);
662 fread(*bufptr, 1, *size, f);
663 (*bufptr)[*size++] = '\0';