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 "libavutil/eval.h"
40 #include "libavcodec/opt.h"
41 #include "libavcore/avcore.h"
45 #include "libavformat/network.h"
47 #if HAVE_SYS_RESOURCE_H
48 #include <sys/resource.h>
51 const char **opt_names;
52 static int opt_name_count;
53 AVCodecContext *avcodec_opts[AVMEDIA_TYPE_NB];
54 AVFormatContext *avformat_opts;
55 struct SwsContext *sws_opts;
57 const int this_year = 2010;
59 double parse_number_or_die(const char *context, const char *numstr, int type, double min, double max)
63 double d = av_strtod(numstr, &tail);
65 error= "Expected number for %s but found: %s\n";
66 else if (d < min || d > max)
67 error= "The value for %s was %s which is not within %f - %f\n";
68 else if(type == OPT_INT64 && (int64_t)d != d)
69 error= "Expected int64 for %s but found %s\n";
72 fprintf(stderr, error, context, numstr, min, max);
76 int64_t parse_time_or_die(const char *context, const char *timestr, int is_duration)
78 int64_t us = parse_date(timestr, is_duration);
79 if (us == INT64_MIN) {
80 fprintf(stderr, "Invalid %s specification for %s: %s\n",
81 is_duration ? "duration" : "date", context, timestr);
87 void show_help_options(const OptionDef *options, const char *msg, int mask, int value)
93 for(po = options; po->name != NULL; po++) {
95 if ((po->flags & mask) == value) {
100 av_strlcpy(buf, po->name, sizeof(buf));
101 if (po->flags & HAS_ARG) {
102 av_strlcat(buf, " ", sizeof(buf));
103 av_strlcat(buf, po->argname, sizeof(buf));
105 printf("-%-17s %s\n", buf, po->help);
110 static const OptionDef* find_option(const OptionDef *po, const char *name){
111 while (po->name != NULL) {
112 if (!strcmp(name, po->name))
119 void parse_options(int argc, char **argv, const OptionDef *options,
120 void (* parse_arg_function)(const char*))
122 const char *opt, *arg;
123 int optindex, handleoptions=1;
128 while (optindex < argc) {
129 opt = argv[optindex++];
131 if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
133 if (opt[1] == '-' && opt[2] == '\0') {
138 po= find_option(options, opt);
139 if (!po->name && opt[0] == 'n' && opt[1] == 'o') {
140 /* handle 'no' bool option */
141 po = find_option(options, opt + 2);
142 if (!(po->name && (po->flags & OPT_BOOL)))
147 po= find_option(options, "default");
150 fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], opt);
154 if (po->flags & HAS_ARG) {
155 arg = argv[optindex++];
157 fprintf(stderr, "%s: missing argument for option '%s'\n", argv[0], opt);
161 if (po->flags & OPT_STRING) {
163 str = av_strdup(arg);
164 *po->u.str_arg = str;
165 } else if (po->flags & OPT_BOOL) {
166 *po->u.int_arg = bool_val;
167 } else if (po->flags & OPT_INT) {
168 *po->u.int_arg = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
169 } else if (po->flags & OPT_INT64) {
170 *po->u.int64_arg = parse_number_or_die(opt, arg, OPT_INT64, INT64_MIN, INT64_MAX);
171 } else if (po->flags & OPT_FLOAT) {
172 *po->u.float_arg = parse_number_or_die(opt, arg, OPT_FLOAT, -1.0/0.0, 1.0/0.0);
173 } else if (po->flags & OPT_FUNC2) {
174 if (po->u.func2_arg(opt, arg) < 0) {
175 fprintf(stderr, "%s: failed to set value '%s' for option '%s'\n", argv[0], arg, opt);
181 if(po->flags & OPT_EXIT)
184 if (parse_arg_function)
185 parse_arg_function(opt);
190 int opt_default(const char *opt, const char *arg){
193 const AVOption *o= NULL;
194 int opt_types[]={AV_OPT_FLAG_VIDEO_PARAM, AV_OPT_FLAG_AUDIO_PARAM, 0, AV_OPT_FLAG_SUBTITLE_PARAM, 0};
196 for(type=0; type<AVMEDIA_TYPE_NB && ret>= 0; type++){
197 const AVOption *o2 = av_find_opt(avcodec_opts[0], opt, NULL, opt_types[type], opt_types[type]);
199 ret = av_set_string3(avcodec_opts[type], opt, arg, 1, &o);
202 ret = av_set_string3(avformat_opts, opt, arg, 1, &o);
204 ret = av_set_string3(sws_opts, opt, arg, 1, &o);
207 ret = av_set_string3(avcodec_opts[AVMEDIA_TYPE_AUDIO], opt+1, arg, 1, &o);
208 else if(opt[0] == 'v')
209 ret = av_set_string3(avcodec_opts[AVMEDIA_TYPE_VIDEO], opt+1, arg, 1, &o);
210 else if(opt[0] == 's')
211 ret = av_set_string3(avcodec_opts[AVMEDIA_TYPE_SUBTITLE], opt+1, arg, 1, &o);
214 fprintf(stderr, "Invalid value '%s' for option '%s'\n", arg, opt);
218 fprintf(stderr, "Unrecognized option '%s'\n", opt);
222 // 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));
224 //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
225 opt_names= av_realloc(opt_names, sizeof(void*)*(opt_name_count+1));
226 opt_names[opt_name_count++]= o->name;
228 if(avcodec_opts[0]->debug || avformat_opts->debug)
229 av_log_set_level(AV_LOG_DEBUG);
233 int opt_loglevel(const char *opt, const char *arg)
235 const struct { const char *name; int level; } log_levels[] = {
236 { "quiet" , AV_LOG_QUIET },
237 { "panic" , AV_LOG_PANIC },
238 { "fatal" , AV_LOG_FATAL },
239 { "error" , AV_LOG_ERROR },
240 { "warning", AV_LOG_WARNING },
241 { "info" , AV_LOG_INFO },
242 { "verbose", AV_LOG_VERBOSE },
243 { "debug" , AV_LOG_DEBUG },
249 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) {
250 if (!strcmp(log_levels[i].name, arg)) {
251 av_log_set_level(log_levels[i].level);
256 level = strtol(arg, &tail, 10);
258 fprintf(stderr, "Invalid loglevel \"%s\". "
259 "Possible levels are numbers or:\n", arg);
260 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++)
261 fprintf(stderr, "\"%s\"\n", log_levels[i].name);
264 av_log_set_level(level);
268 int opt_timelimit(const char *opt, const char *arg)
271 int lim = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
272 struct rlimit rl = { lim, lim + 1 };
273 if (setrlimit(RLIMIT_CPU, &rl))
276 fprintf(stderr, "Warning: -%s not implemented on this OS\n", opt);
281 void set_context_opts(void *ctx, void *opts_ctx, int flags)
284 for(i=0; i<opt_name_count; i++){
287 const char *str= av_get_string(opts_ctx, opt_names[i], &opt, buf, sizeof(buf));
288 /* if an option with name opt_names[i] is present in opts_ctx then str is non-NULL */
289 if(str && ((opt->flags & flags) == flags))
290 av_set_string3(ctx, opt_names[i], str, 1, NULL);
294 void print_error(const char *filename, int err)
297 const char *errbuf_ptr = errbuf;
299 if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
300 errbuf_ptr = strerror(AVUNERROR(err));
301 fprintf(stderr, "%s: %s\n", filename, errbuf_ptr);
304 static int warned_cfg = 0;
307 #define SHOW_VERSION 2
308 #define SHOW_CONFIG 4
310 #define PRINT_LIB_INFO(outstream,libname,LIBNAME,flags) \
311 if (CONFIG_##LIBNAME) { \
312 if (flags & SHOW_VERSION) { \
313 unsigned int version = libname##_version(); \
314 fprintf(outstream, "%slib%-10s %2d.%2d.%2d / %2d.%2d.%2d\n", \
315 flags & INDENT? " " : "", #libname, \
316 LIB##LIBNAME##_VERSION_MAJOR, \
317 LIB##LIBNAME##_VERSION_MINOR, \
318 LIB##LIBNAME##_VERSION_MICRO, \
319 version >> 16, version >> 8 & 0xff, version & 0xff); \
321 if (flags & SHOW_CONFIG) { \
322 const char *cfg = libname##_configuration(); \
323 if (strcmp(FFMPEG_CONFIGURATION, cfg)) { \
326 "%sWARNING: library configuration mismatch\n", \
327 flags & INDENT? " " : ""); \
330 fprintf(stderr, "%s%-11s configuration: %s\n", \
331 flags & INDENT? " " : "", #libname, cfg); \
336 static void print_all_libs_info(FILE* outstream, int flags)
338 PRINT_LIB_INFO(outstream, avutil, AVUTIL, flags);
339 PRINT_LIB_INFO(outstream, avcore, AVCORE, flags);
340 PRINT_LIB_INFO(outstream, avcodec, AVCODEC, flags);
341 PRINT_LIB_INFO(outstream, avformat, AVFORMAT, flags);
342 PRINT_LIB_INFO(outstream, avdevice, AVDEVICE, flags);
343 PRINT_LIB_INFO(outstream, avfilter, AVFILTER, flags);
344 PRINT_LIB_INFO(outstream, swscale, SWSCALE, flags);
345 PRINT_LIB_INFO(outstream, postproc, POSTPROC, flags);
348 void show_banner(void)
350 fprintf(stderr, "%s version " FFMPEG_VERSION ", Copyright (c) %d-%d the FFmpeg developers\n",
351 program_name, program_birth_year, this_year);
352 fprintf(stderr, " built on %s %s with %s %s\n",
353 __DATE__, __TIME__, CC_TYPE, CC_VERSION);
354 fprintf(stderr, " configuration: " FFMPEG_CONFIGURATION "\n");
355 print_all_libs_info(stderr, INDENT|SHOW_CONFIG);
356 print_all_libs_info(stderr, INDENT|SHOW_VERSION);
359 void show_version(void) {
360 printf("%s " FFMPEG_VERSION "\n", program_name);
361 print_all_libs_info(stdout, SHOW_VERSION);
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';