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;
297 if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
298 errbuf_ptr = strerror(AVUNERROR(err));
299 fprintf(stderr, "%s: %s\n", filename, errbuf_ptr);
302 #define PRINT_LIB_VERSION(outstream,libname,LIBNAME,indent) \
303 if (CONFIG_##LIBNAME) { \
304 unsigned int version = libname##_version(); \
305 fprintf(outstream, "%slib%-10s %2d.%2d.%2d / %2d.%2d.%2d\n", \
306 indent? " " : "", #libname, \
307 LIB##LIBNAME##_VERSION_MAJOR, \
308 LIB##LIBNAME##_VERSION_MINOR, \
309 LIB##LIBNAME##_VERSION_MICRO, \
310 version >> 16, version >> 8 & 0xff, version & 0xff); \
313 static void print_all_lib_versions(FILE* outstream, int indent)
315 PRINT_LIB_VERSION(outstream, avutil, AVUTIL, indent);
316 PRINT_LIB_VERSION(outstream, avcodec, AVCODEC, indent);
317 PRINT_LIB_VERSION(outstream, avformat, AVFORMAT, indent);
318 PRINT_LIB_VERSION(outstream, avdevice, AVDEVICE, indent);
319 PRINT_LIB_VERSION(outstream, avfilter, AVFILTER, indent);
320 PRINT_LIB_VERSION(outstream, swscale, SWSCALE, indent);
321 PRINT_LIB_VERSION(outstream, postproc, POSTPROC, indent);
324 static void maybe_print_config(const char *lib, const char *cfg)
326 static int warned_cfg;
328 if (strcmp(FFMPEG_CONFIGURATION, cfg)) {
330 fprintf(stderr, " WARNING: library configuration mismatch\n");
333 fprintf(stderr, " %-11s configuration: %s\n", lib, cfg);
337 #define PRINT_LIB_CONFIG(lib, tag, cfg) do { \
339 maybe_print_config(tag, cfg); \
342 void show_banner(void)
344 fprintf(stderr, "%s version " FFMPEG_VERSION ", Copyright (c) %d-%d the FFmpeg developers\n",
345 program_name, program_birth_year, this_year);
346 fprintf(stderr, " built on %s %s with %s %s\n",
347 __DATE__, __TIME__, CC_TYPE, CC_VERSION);
348 fprintf(stderr, " configuration: " FFMPEG_CONFIGURATION "\n");
349 PRINT_LIB_CONFIG(AVUTIL, "libavutil", avutil_configuration());
350 PRINT_LIB_CONFIG(AVCODEC, "libavcodec", avcodec_configuration());
351 PRINT_LIB_CONFIG(AVFORMAT, "libavformat", avformat_configuration());
352 PRINT_LIB_CONFIG(AVDEVICE, "libavdevice", avdevice_configuration());
353 PRINT_LIB_CONFIG(AVFILTER, "libavfilter", avfilter_configuration());
354 PRINT_LIB_CONFIG(SWSCALE, "libswscale", swscale_configuration());
355 PRINT_LIB_CONFIG(POSTPROC, "libpostproc", postproc_configuration());
356 print_all_lib_versions(stderr, 1);
359 void show_version(void) {
360 printf("%s " FFMPEG_VERSION "\n", program_name);
361 print_all_lib_versions(stdout, 0);
364 void show_license(void)
368 "This version of %s has nonfree parts compiled in.\n"
369 "Therefore it is not legally redistributable.\n",
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"
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"
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
386 "%s is free software; you can redistribute it and/or modify\n"
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"
391 "%s is distributed in the hope that it will be useful,\n"
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"
396 "You should have received a copy of the GNU General Public License\n"
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
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"
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"
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
415 "%s is free software; you can redistribute it and/or\n"
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"
420 "%s is distributed in the hope that it will be useful,\n"
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"
425 "You should have received a copy of the GNU Lesser General Public\n"
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
433 void list_fmts(void (*get_fmt_string)(char *buf, int buf_size, int fmt), int nb_fmts)
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);
443 void show_formats(void)
445 AVInputFormat *ifmt=NULL;
446 AVOutputFormat *ofmt=NULL;
447 const char *last_name;
451 " D. = Demuxing supported\n"
452 " .E = Muxing supported\n"
458 const char *name=NULL;
459 const char *long_name=NULL;
461 while((ofmt= av_oformat_next(ofmt))) {
462 if((name == NULL || strcmp(ofmt->name, name)<0) &&
463 strcmp(ofmt->name, last_name)>0){
465 long_name= ofmt->long_name;
469 while((ifmt= av_iformat_next(ifmt))) {
470 if((name == NULL || strcmp(ifmt->name, name)<0) &&
471 strcmp(ifmt->name, last_name)>0){
473 long_name= ifmt->long_name;
476 if(name && strcmp(ifmt->name, name)==0)
488 long_name ? long_name:" ");
492 void show_codecs(void)
494 AVCodec *p=NULL, *p2;
495 const char *last_name;
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"
512 const char *type_str;
515 while((p= av_codec_next(p))) {
516 if((p2==NULL || strcmp(p->name, p2->name)<0) &&
517 strcmp(p->name, last_name)>0){
519 decode= encode= cap=0;
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;
532 case AVMEDIA_TYPE_VIDEO:
535 case AVMEDIA_TYPE_AUDIO:
538 case AVMEDIA_TYPE_SUBTITLE:
546 " %s%s%s%s%s%s %-15s %s",
547 decode ? "D": (/*p2->decoder ? "d":*/" "),
550 cap & CODEC_CAP_DRAW_HORIZ_BAND ? "S":" ",
551 cap & CODEC_CAP_DR1 ? "D":" ",
552 cap & CODEC_CAP_TRUNCATED ? "T":" ",
554 p2->long_name ? p2->long_name : "");
555 /* if(p2->decoder && decode==0)
556 printf(" use %s for decoding", p2->decoder->name);*/
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"
570 AVBitStreamFilter *bsf=NULL;
572 printf("Bitstream filters:\n");
573 while((bsf = av_bitstream_filter_next(bsf)))
574 printf("%s\n", bsf->name);
578 void show_protocols(void)
580 URLProtocol *up=NULL;
582 printf("Supported file protocols:\n");
583 while((up = av_protocol_next(up)))
584 printf("%s\n", up->name);
587 void show_filters(void)
589 AVFilter av_unused(**filter) = NULL;
591 printf("Filters:\n");
593 while ((filter = av_filter_next(filter)) && *filter)
594 printf("%-16s %s\n", (*filter)->name, (*filter)->description);
598 void show_pix_fmts(void)
600 enum PixelFormat pix_fmt;
604 "I.... = Supported Input format for conversion\n"
605 ".O... = Supported Output format for conversion\n"
606 "..H.. = Hardware accelerated format\n"
607 "...P. = Paletted format\n"
608 "....B = Bitstream format\n"
609 "FLAGS NAME NB_COMPONENTS BITS_PER_PIXEL\n"
613 # define sws_isSupportedInput(x) 0
614 # define sws_isSupportedOutput(x) 0
617 for (pix_fmt = 0; pix_fmt < PIX_FMT_NB; pix_fmt++) {
618 const AVPixFmtDescriptor *pix_desc = &av_pix_fmt_descriptors[pix_fmt];
619 printf("%c%c%c%c%c %-16s %d %2d\n",
620 sws_isSupportedInput (pix_fmt) ? 'I' : '.',
621 sws_isSupportedOutput(pix_fmt) ? 'O' : '.',
622 pix_desc->flags & PIX_FMT_HWACCEL ? 'H' : '.',
623 pix_desc->flags & PIX_FMT_PAL ? 'P' : '.',
624 pix_desc->flags & PIX_FMT_BITSTREAM ? 'B' : '.',
626 pix_desc->nb_components,
627 av_get_bits_per_pixel(pix_desc));
634 int yesno = (toupper(c) == 'Y');
636 while (c != '\n' && c != EOF)
642 int read_file(const char *filename, char **bufptr, size_t *size)
644 FILE *f = fopen(filename, "rb");
647 fprintf(stderr, "Cannot read file '%s': %s\n", filename, strerror(errno));
648 return AVERROR(errno);
650 fseek(f, 0, SEEK_END);
652 fseek(f, 0, SEEK_SET);
653 *bufptr = av_malloc(*size + 1);
655 fprintf(stderr, "Could not allocate file buffer\n");
657 return AVERROR(ENOMEM);
659 fread(*bufptr, 1, *size, f);
660 (*bufptr)[*size++] = '\0';