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 "compat/va_copy.h"
33 #include "libavformat/avformat.h"
34 #include "libavfilter/avfilter.h"
35 #include "libavdevice/avdevice.h"
36 #include "libavresample/avresample.h"
37 #include "libswscale/swscale.h"
38 #include "libswresample/swresample.h"
40 #include "libpostproc/postprocess.h"
42 #include "libavutil/avassert.h"
43 #include "libavutil/avstring.h"
44 #include "libavutil/bprint.h"
45 #include "libavutil/mathematics.h"
46 #include "libavutil/imgutils.h"
47 #include "libavutil/parseutils.h"
48 #include "libavutil/pixdesc.h"
49 #include "libavutil/eval.h"
50 #include "libavutil/dict.h"
51 #include "libavutil/opt.h"
55 #include "libavformat/network.h"
57 #if HAVE_SYS_RESOURCE_H
59 #include <sys/resource.h>
62 static int init_report(const char *env);
64 struct SwsContext *sws_opts;
65 AVDictionary *swr_opts;
66 AVDictionary *format_opts, *codec_opts, *resample_opts;
68 const int this_year = 2013;
70 static FILE *report_file;
76 sws_opts = sws_getContext(16, 16, 0, 16, 16, 0, SWS_BICUBIC,
80 void uninit_opts(void)
83 sws_freeContext(sws_opts);
87 av_dict_free(&swr_opts);
88 av_dict_free(&format_opts);
89 av_dict_free(&codec_opts);
90 av_dict_free(&resample_opts);
93 void log_callback_help(void *ptr, int level, const char *fmt, va_list vl)
95 vfprintf(stdout, fmt, vl);
98 static void log_callback_report(void *ptr, int level, const char *fmt, va_list vl)
102 static int print_prefix = 1;
105 av_log_default_callback(ptr, level, fmt, vl);
106 av_log_format_line(ptr, level, fmt, vl2, line, sizeof(line), &print_prefix);
108 fputs(line, report_file);
112 double parse_number_or_die(const char *context, const char *numstr, int type,
113 double min, double max)
117 double d = av_strtod(numstr, &tail);
119 error = "Expected number for %s but found: %s\n";
120 else if (d < min || d > max)
121 error = "The value for %s was %s which is not within %f - %f\n";
122 else if (type == OPT_INT64 && (int64_t)d != d)
123 error = "Expected int64 for %s but found %s\n";
124 else if (type == OPT_INT && (int)d != d)
125 error = "Expected int for %s but found %s\n";
128 av_log(NULL, AV_LOG_FATAL, error, context, numstr, min, max);
133 int64_t parse_time_or_die(const char *context, const char *timestr,
137 if (av_parse_time(&us, timestr, is_duration) < 0) {
138 av_log(NULL, AV_LOG_FATAL, "Invalid %s specification for %s: %s\n",
139 is_duration ? "duration" : "date", context, timestr);
145 void show_help_options(const OptionDef *options, const char *msg, int req_flags,
146 int rej_flags, int alt_flags)
152 for (po = options; po->name != NULL; po++) {
155 if (((po->flags & req_flags) != req_flags) ||
156 (alt_flags && !(po->flags & alt_flags)) ||
157 (po->flags & rej_flags))
164 av_strlcpy(buf, po->name, sizeof(buf));
166 av_strlcat(buf, " ", sizeof(buf));
167 av_strlcat(buf, po->argname, sizeof(buf));
169 printf("-%-17s %s\n", buf, po->help);
174 void show_help_children(const AVClass *class, int flags)
176 const AVClass *child = NULL;
178 av_opt_show2(&class, NULL, flags, 0);
182 while (child = av_opt_child_class_next(class, child))
183 show_help_children(child, flags);
186 static const OptionDef *find_option(const OptionDef *po, const char *name)
188 const char *p = strchr(name, ':');
189 int len = p ? p - name : strlen(name);
191 while (po->name != NULL) {
192 if (!strncmp(name, po->name, len) && strlen(po->name) == len)
199 #if HAVE_COMMANDLINETOARGVW
201 #include <shellapi.h>
202 /* Will be leaked on exit */
203 static char** win32_argv_utf8 = NULL;
204 static int win32_argc = 0;
207 * Prepare command line arguments for executable.
208 * For Windows - perform wide-char to UTF-8 conversion.
209 * Input arguments should be main() function arguments.
210 * @param argc_ptr Arguments number (including executable)
211 * @param argv_ptr Arguments list.
213 static void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
217 int i, buffsize = 0, offset = 0;
219 if (win32_argv_utf8) {
220 *argc_ptr = win32_argc;
221 *argv_ptr = win32_argv_utf8;
226 argv_w = CommandLineToArgvW(GetCommandLineW(), &win32_argc);
227 if (win32_argc <= 0 || !argv_w)
230 /* determine the UTF-8 buffer size (including NULL-termination symbols) */
231 for (i = 0; i < win32_argc; i++)
232 buffsize += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
233 NULL, 0, NULL, NULL);
235 win32_argv_utf8 = av_mallocz(sizeof(char *) * (win32_argc + 1) + buffsize);
236 argstr_flat = (char *)win32_argv_utf8 + sizeof(char *) * (win32_argc + 1);
237 if (win32_argv_utf8 == NULL) {
242 for (i = 0; i < win32_argc; i++) {
243 win32_argv_utf8[i] = &argstr_flat[offset];
244 offset += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
245 &argstr_flat[offset],
246 buffsize - offset, NULL, NULL);
248 win32_argv_utf8[i] = NULL;
251 *argc_ptr = win32_argc;
252 *argv_ptr = win32_argv_utf8;
255 static inline void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
259 #endif /* HAVE_COMMANDLINETOARGVW */
261 static int write_option(void *optctx, const OptionDef *po, const char *opt,
264 /* new-style options contain an offset into optctx, old-style address of
266 void *dst = po->flags & (OPT_OFFSET | OPT_SPEC) ?
267 (uint8_t *)optctx + po->u.off : po->u.dst_ptr;
270 if (po->flags & OPT_SPEC) {
271 SpecifierOpt **so = dst;
272 char *p = strchr(opt, ':');
274 dstcount = (int *)(so + 1);
275 *so = grow_array(*so, sizeof(**so), dstcount, *dstcount + 1);
276 (*so)[*dstcount - 1].specifier = av_strdup(p ? p + 1 : "");
277 dst = &(*so)[*dstcount - 1].u;
280 if (po->flags & OPT_STRING) {
282 str = av_strdup(arg);
285 } else if (po->flags & OPT_BOOL || po->flags & OPT_INT) {
286 *(int *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
287 } else if (po->flags & OPT_INT64) {
288 *(int64_t *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT64_MIN, INT64_MAX);
289 } else if (po->flags & OPT_TIME) {
290 *(int64_t *)dst = parse_time_or_die(opt, arg, 1);
291 } else if (po->flags & OPT_FLOAT) {
292 *(float *)dst = parse_number_or_die(opt, arg, OPT_FLOAT, -INFINITY, INFINITY);
293 } else if (po->flags & OPT_DOUBLE) {
294 *(double *)dst = parse_number_or_die(opt, arg, OPT_DOUBLE, -INFINITY, INFINITY);
295 } else if (po->u.func_arg) {
296 int ret = po->u.func_arg(optctx, opt, arg);
298 av_log(NULL, AV_LOG_ERROR,
299 "Failed to set value '%s' for option '%s'\n", arg, opt);
303 if (po->flags & OPT_EXIT)
309 int parse_option(void *optctx, const char *opt, const char *arg,
310 const OptionDef *options)
315 po = find_option(options, opt);
316 if (!po->name && opt[0] == 'n' && opt[1] == 'o') {
317 /* handle 'no' bool option */
318 po = find_option(options, opt + 2);
319 if ((po->name && (po->flags & OPT_BOOL)))
321 } else if (po->flags & OPT_BOOL)
325 po = find_option(options, "default");
327 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'\n", opt);
328 return AVERROR(EINVAL);
330 if (po->flags & HAS_ARG && !arg) {
331 av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'\n", opt);
332 return AVERROR(EINVAL);
335 ret = write_option(optctx, po, opt, arg);
339 return !!(po->flags & HAS_ARG);
342 void parse_options(void *optctx, int argc, char **argv, const OptionDef *options,
343 void (*parse_arg_function)(void *, const char*))
346 int optindex, handleoptions = 1, ret;
348 /* perform system-dependent conversions for arguments list */
349 prepare_app_arguments(&argc, &argv);
353 while (optindex < argc) {
354 opt = argv[optindex++];
356 if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
357 if (opt[1] == '-' && opt[2] == '\0') {
363 if ((ret = parse_option(optctx, opt, argv[optindex], options)) < 0)
367 if (parse_arg_function)
368 parse_arg_function(optctx, opt);
373 int parse_optgroup(void *optctx, OptionGroup *g)
377 av_log(NULL, AV_LOG_DEBUG, "Parsing a group of options: %s %s.\n",
378 g->group_def->name, g->arg);
380 for (i = 0; i < g->nb_opts; i++) {
381 Option *o = &g->opts[i];
383 av_log(NULL, AV_LOG_DEBUG, "Applying option %s (%s) with argument %s.\n",
384 o->key, o->opt->help, o->val);
386 ret = write_option(optctx, o->opt, o->key, o->val);
391 av_log(NULL, AV_LOG_DEBUG, "Successfully parsed a group of options.\n");
396 int locate_option(int argc, char **argv, const OptionDef *options,
402 for (i = 1; i < argc; i++) {
403 const char *cur_opt = argv[i];
405 if (*cur_opt++ != '-')
408 po = find_option(options, cur_opt);
409 if (!po->name && cur_opt[0] == 'n' && cur_opt[1] == 'o')
410 po = find_option(options, cur_opt + 2);
412 if ((!po->name && !strcmp(cur_opt, optname)) ||
413 (po->name && !strcmp(optname, po->name)))
416 if (po->flags & HAS_ARG)
422 static void dump_argument(const char *a)
424 const unsigned char *p;
427 if (!((*p >= '+' && *p <= ':') || (*p >= '@' && *p <= 'Z') ||
428 *p == '_' || (*p >= 'a' && *p <= 'z')))
431 fputs(a, report_file);
434 fputc('"', report_file);
435 for (p = a; *p; p++) {
436 if (*p == '\\' || *p == '"' || *p == '$' || *p == '`')
437 fprintf(report_file, "\\%c", *p);
438 else if (*p < ' ' || *p > '~')
439 fprintf(report_file, "\\x%02x", *p);
441 fputc(*p, report_file);
443 fputc('"', report_file);
446 void parse_loglevel(int argc, char **argv, const OptionDef *options)
448 int idx = locate_option(argc, argv, options, "loglevel");
451 idx = locate_option(argc, argv, options, "v");
452 if (idx && argv[idx + 1])
453 opt_loglevel(NULL, "loglevel", argv[idx + 1]);
454 idx = locate_option(argc, argv, options, "report");
455 if ((env = getenv("FFREPORT")) || idx) {
459 fprintf(report_file, "Command line:\n");
460 for (i = 0; i < argc; i++) {
461 dump_argument(argv[i]);
462 fputc(i < argc - 1 ? ' ' : '\n', report_file);
469 #define FLAGS (o->type == AV_OPT_TYPE_FLAGS) ? AV_DICT_APPEND : 0
470 int opt_default(void *optctx, const char *opt, const char *arg)
474 char opt_stripped[128];
476 const AVClass *cc = avcodec_get_class(), *fc = avformat_get_class();
477 #if CONFIG_AVRESAMPLE
478 const AVClass *rc = avresample_get_class();
480 const AVClass *sc, *swr_class;
482 if (!strcmp(opt, "debug") || !strcmp(opt, "fdebug"))
483 av_log_set_level(AV_LOG_DEBUG);
485 if (!(p = strchr(opt, ':')))
486 p = opt + strlen(opt);
487 av_strlcpy(opt_stripped, opt, FFMIN(sizeof(opt_stripped), p - opt + 1));
489 if ((o = av_opt_find(&cc, opt_stripped, NULL, 0,
490 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) ||
491 ((opt[0] == 'v' || opt[0] == 'a' || opt[0] == 's') &&
492 (o = av_opt_find(&cc, opt + 1, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ)))) {
493 av_dict_set(&codec_opts, opt, arg, FLAGS);
496 if ((o = av_opt_find(&fc, opt, NULL, 0,
497 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
498 av_dict_set(&format_opts, opt, arg, FLAGS);
500 av_log(NULL, AV_LOG_VERBOSE, "Routing %s to codec and muxer layer\n", opt);
504 sc = sws_get_class();
505 if (!consumed && av_opt_find(&sc, opt, NULL, 0,
506 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) {
507 // XXX we only support sws_flags, not arbitrary sws options
508 int ret = av_opt_set(sws_opts, opt, arg, 0);
510 av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
516 #if CONFIG_SWRESAMPLE
517 swr_class = swr_get_class();
518 if (!consumed && (o=av_opt_find(&swr_class, opt, NULL, 0,
519 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
520 struct SwrContext *swr = swr_alloc();
521 int ret = av_opt_set(swr, opt, arg, 0);
524 av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
527 av_dict_set(&swr_opts, opt, arg, FLAGS);
531 #if CONFIG_AVRESAMPLE
532 if ((o=av_opt_find(&rc, opt, NULL, 0,
533 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
534 av_dict_set(&resample_opts, opt, arg, FLAGS);
541 return AVERROR_OPTION_NOT_FOUND;
545 * Check whether given option is a group separator.
547 * @return index of the group definition that matched or -1 if none
549 static int match_group_separator(const OptionGroupDef *groups, int nb_groups,
554 for (i = 0; i < nb_groups; i++) {
555 const OptionGroupDef *p = &groups[i];
556 if (p->sep && !strcmp(p->sep, opt))
564 * Finish parsing an option group.
566 * @param group_idx which group definition should this group belong to
567 * @param arg argument of the group delimiting option
569 static void finish_group(OptionParseContext *octx, int group_idx,
572 OptionGroupList *l = &octx->groups[group_idx];
575 GROW_ARRAY(l->groups, l->nb_groups);
576 g = &l->groups[l->nb_groups - 1];
578 *g = octx->cur_group;
580 g->group_def = l->group_def;
582 g->sws_opts = sws_opts;
584 g->swr_opts = swr_opts;
585 g->codec_opts = codec_opts;
586 g->format_opts = format_opts;
587 g->resample_opts = resample_opts;
591 resample_opts = NULL;
598 memset(&octx->cur_group, 0, sizeof(octx->cur_group));
602 * Add an option instance to currently parsed group.
604 static void add_opt(OptionParseContext *octx, const OptionDef *opt,
605 const char *key, const char *val)
607 int global = !(opt->flags & (OPT_PERFILE | OPT_SPEC | OPT_OFFSET));
608 OptionGroup *g = global ? &octx->global_opts : &octx->cur_group;
610 GROW_ARRAY(g->opts, g->nb_opts);
611 g->opts[g->nb_opts - 1].opt = opt;
612 g->opts[g->nb_opts - 1].key = key;
613 g->opts[g->nb_opts - 1].val = val;
616 static void init_parse_context(OptionParseContext *octx,
617 const OptionGroupDef *groups, int nb_groups)
619 static const OptionGroupDef global_group = { "global" };
622 memset(octx, 0, sizeof(*octx));
624 octx->nb_groups = nb_groups;
625 octx->groups = av_mallocz(sizeof(*octx->groups) * octx->nb_groups);
629 for (i = 0; i < octx->nb_groups; i++)
630 octx->groups[i].group_def = &groups[i];
632 octx->global_opts.group_def = &global_group;
633 octx->global_opts.arg = "";
638 void uninit_parse_context(OptionParseContext *octx)
642 for (i = 0; i < octx->nb_groups; i++) {
643 OptionGroupList *l = &octx->groups[i];
645 for (j = 0; j < l->nb_groups; j++) {
646 av_freep(&l->groups[j].opts);
647 av_dict_free(&l->groups[j].codec_opts);
648 av_dict_free(&l->groups[j].format_opts);
649 av_dict_free(&l->groups[j].resample_opts);
651 sws_freeContext(l->groups[j].sws_opts);
653 av_dict_free(&l->groups[j].swr_opts);
655 av_freep(&l->groups);
657 av_freep(&octx->groups);
659 av_freep(&octx->cur_group.opts);
660 av_freep(&octx->global_opts.opts);
665 int split_commandline(OptionParseContext *octx, int argc, char *argv[],
666 const OptionDef *options,
667 const OptionGroupDef *groups, int nb_groups)
672 /* perform system-dependent conversions for arguments list */
673 prepare_app_arguments(&argc, &argv);
675 init_parse_context(octx, groups, nb_groups);
676 av_log(NULL, AV_LOG_DEBUG, "Splitting the commandline.\n");
678 while (optindex < argc) {
679 const char *opt = argv[optindex++], *arg;
683 av_log(NULL, AV_LOG_DEBUG, "Reading option '%s' ...", opt);
685 if (opt[0] == '-' && opt[1] == '-' && !opt[2]) {
689 /* unnamed group separators, e.g. output filename */
690 if (opt[0] != '-' || !opt[1] || dashdash+1 == optindex) {
691 finish_group(octx, 0, opt);
692 av_log(NULL, AV_LOG_DEBUG, " matched as %s.\n", groups[0].name);
697 #define GET_ARG(arg) \
699 arg = argv[optindex++]; \
701 av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'.\n", opt);\
702 return AVERROR(EINVAL); \
706 /* named group separators, e.g. -i */
707 if ((ret = match_group_separator(groups, nb_groups, opt)) >= 0) {
709 finish_group(octx, ret, arg);
710 av_log(NULL, AV_LOG_DEBUG, " matched as %s with argument '%s'.\n",
711 groups[ret].name, arg);
716 po = find_option(options, opt);
718 if (po->flags & OPT_EXIT) {
719 /* optional argument, e.g. -h */
720 arg = argv[optindex++];
721 } else if (po->flags & HAS_ARG) {
727 add_opt(octx, po, opt, arg);
728 av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
729 "argument '%s'.\n", po->name, po->help, arg);
734 if (argv[optindex]) {
735 ret = opt_default(NULL, opt, argv[optindex]);
737 av_log(NULL, AV_LOG_DEBUG, " matched as AVOption '%s' with "
738 "argument '%s'.\n", opt, argv[optindex]);
741 } else if (ret != AVERROR_OPTION_NOT_FOUND) {
742 av_log(NULL, AV_LOG_ERROR, "Error parsing option '%s' "
743 "with argument '%s'.\n", opt, argv[optindex]);
748 /* boolean -nofoo options */
749 if (opt[0] == 'n' && opt[1] == 'o' &&
750 (po = find_option(options, opt + 2)) &&
751 po->name && po->flags & OPT_BOOL) {
752 add_opt(octx, po, opt, "0");
753 av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
754 "argument 0.\n", po->name, po->help);
758 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'.\n", opt);
759 return AVERROR_OPTION_NOT_FOUND;
762 if (octx->cur_group.nb_opts || codec_opts || format_opts || resample_opts)
763 av_log(NULL, AV_LOG_WARNING, "Trailing options were found on the "
766 av_log(NULL, AV_LOG_DEBUG, "Finished splitting the commandline.\n");
771 int opt_loglevel(void *optctx, const char *opt, const char *arg)
773 const struct { const char *name; int level; } log_levels[] = {
774 { "quiet" , AV_LOG_QUIET },
775 { "panic" , AV_LOG_PANIC },
776 { "fatal" , AV_LOG_FATAL },
777 { "error" , AV_LOG_ERROR },
778 { "warning", AV_LOG_WARNING },
779 { "info" , AV_LOG_INFO },
780 { "verbose", AV_LOG_VERBOSE },
781 { "debug" , AV_LOG_DEBUG },
787 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) {
788 if (!strcmp(log_levels[i].name, arg)) {
789 av_log_set_level(log_levels[i].level);
794 level = strtol(arg, &tail, 10);
796 av_log(NULL, AV_LOG_FATAL, "Invalid loglevel \"%s\". "
797 "Possible levels are numbers or:\n", arg);
798 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++)
799 av_log(NULL, AV_LOG_FATAL, "\"%s\"\n", log_levels[i].name);
802 av_log_set_level(level);
806 static void expand_filename_template(AVBPrint *bp, const char *template,
811 while ((c = *(template++))) {
813 if (!(c = *(template++)))
817 av_bprintf(bp, "%s", program_name);
820 av_bprintf(bp, "%04d%02d%02d-%02d%02d%02d",
821 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
822 tm->tm_hour, tm->tm_min, tm->tm_sec);
825 av_bprint_chars(bp, c, 1);
829 av_bprint_chars(bp, c, 1);
834 static int init_report(const char *env)
836 char *filename_template = NULL;
843 if (report_file) /* already opened */
846 tm = localtime(&now);
848 while (env && *env) {
849 if ((ret = av_opt_get_key_value(&env, "=", ":", 0, &key, &val)) < 0) {
851 av_log(NULL, AV_LOG_ERROR,
852 "Failed to parse FFREPORT environment variable: %s\n",
859 if (!strcmp(key, "file")) {
860 av_free(filename_template);
861 filename_template = val;
864 av_log(NULL, AV_LOG_ERROR, "Unknown key '%s' in FFREPORT\n", key);
870 av_bprint_init(&filename, 0, 1);
871 expand_filename_template(&filename,
872 av_x_if_null(filename_template, "%p-%t.log"), tm);
873 av_free(filename_template);
874 if (!av_bprint_is_complete(&filename)) {
875 av_log(NULL, AV_LOG_ERROR, "Out of memory building report file name\n");
876 return AVERROR(ENOMEM);
879 report_file = fopen(filename.str, "w");
881 av_log(NULL, AV_LOG_ERROR, "Failed to open report \"%s\": %s\n",
882 filename.str, strerror(errno));
883 return AVERROR(errno);
885 av_log_set_callback(log_callback_report);
886 av_log(NULL, AV_LOG_INFO,
887 "%s started on %04d-%02d-%02d at %02d:%02d:%02d\n"
888 "Report written to \"%s\"\n",
890 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
891 tm->tm_hour, tm->tm_min, tm->tm_sec,
893 av_log_set_level(FFMAX(av_log_get_level(), AV_LOG_VERBOSE));
894 av_bprint_finalize(&filename, NULL);
898 int opt_report(const char *opt)
900 return init_report(NULL);
903 int opt_max_alloc(void *optctx, const char *opt, const char *arg)
908 max = strtol(arg, &tail, 10);
910 av_log(NULL, AV_LOG_FATAL, "Invalid max_alloc \"%s\".\n", arg);
917 int opt_cpuflags(void *optctx, const char *opt, const char *arg)
920 unsigned flags = av_get_cpu_flags();
922 if ((ret = av_parse_cpu_caps(&flags, arg)) < 0)
925 av_force_cpu_flags(flags);
929 int opt_timelimit(void *optctx, const char *opt, const char *arg)
932 int lim = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
933 struct rlimit rl = { lim, lim + 1 };
934 if (setrlimit(RLIMIT_CPU, &rl))
937 av_log(NULL, AV_LOG_WARNING, "-%s not implemented on this OS\n", opt);
942 void print_error(const char *filename, int err)
945 const char *errbuf_ptr = errbuf;
947 if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
948 errbuf_ptr = strerror(AVUNERROR(err));
949 av_log(NULL, AV_LOG_ERROR, "%s: %s\n", filename, errbuf_ptr);
952 static int warned_cfg = 0;
955 #define SHOW_VERSION 2
956 #define SHOW_CONFIG 4
957 #define SHOW_COPYRIGHT 8
959 #define PRINT_LIB_INFO(libname, LIBNAME, flags, level) \
960 if (CONFIG_##LIBNAME) { \
961 const char *indent = flags & INDENT? " " : ""; \
962 if (flags & SHOW_VERSION) { \
963 unsigned int version = libname##_version(); \
964 av_log(NULL, level, \
965 "%slib%-11s %2d.%3d.%3d / %2d.%3d.%3d\n", \
967 LIB##LIBNAME##_VERSION_MAJOR, \
968 LIB##LIBNAME##_VERSION_MINOR, \
969 LIB##LIBNAME##_VERSION_MICRO, \
970 version >> 16, version >> 8 & 0xff, version & 0xff); \
972 if (flags & SHOW_CONFIG) { \
973 const char *cfg = libname##_configuration(); \
974 if (strcmp(FFMPEG_CONFIGURATION, cfg)) { \
976 av_log(NULL, level, \
977 "%sWARNING: library configuration mismatch\n", \
981 av_log(NULL, level, "%s%-11s configuration: %s\n", \
982 indent, #libname, cfg); \
987 static void print_all_libs_info(int flags, int level)
989 PRINT_LIB_INFO(avutil, AVUTIL, flags, level);
990 PRINT_LIB_INFO(avcodec, AVCODEC, flags, level);
991 PRINT_LIB_INFO(avformat, AVFORMAT, flags, level);
992 PRINT_LIB_INFO(avdevice, AVDEVICE, flags, level);
993 PRINT_LIB_INFO(avfilter, AVFILTER, flags, level);
994 // PRINT_LIB_INFO(avresample, AVRESAMPLE, flags, level);
995 PRINT_LIB_INFO(swscale, SWSCALE, flags, level);
996 PRINT_LIB_INFO(swresample,SWRESAMPLE, flags, level);
998 PRINT_LIB_INFO(postproc, POSTPROC, flags, level);
1002 static void print_program_info(int flags, int level)
1004 const char *indent = flags & INDENT? " " : "";
1006 av_log(NULL, level, "%s version " FFMPEG_VERSION, program_name);
1007 if (flags & SHOW_COPYRIGHT)
1008 av_log(NULL, level, " Copyright (c) %d-%d the FFmpeg developers",
1009 program_birth_year, this_year);
1010 av_log(NULL, level, "\n");
1011 av_log(NULL, level, "%sbuilt on %s %s with %s\n",
1012 indent, __DATE__, __TIME__, CC_IDENT);
1014 av_log(NULL, level, "%sconfiguration: " FFMPEG_CONFIGURATION "\n", indent);
1017 void show_banner(int argc, char **argv, const OptionDef *options)
1019 int idx = locate_option(argc, argv, options, "version");
1023 print_program_info (INDENT|SHOW_COPYRIGHT, AV_LOG_INFO);
1024 print_all_libs_info(INDENT|SHOW_CONFIG, AV_LOG_INFO);
1025 print_all_libs_info(INDENT|SHOW_VERSION, AV_LOG_INFO);
1028 int show_version(void *optctx, const char *opt, const char *arg)
1030 av_log_set_callback(log_callback_help);
1031 print_program_info (0 , AV_LOG_INFO);
1032 print_all_libs_info(SHOW_VERSION, AV_LOG_INFO);
1037 int show_license(void *optctx, const char *opt, const char *arg)
1041 "This version of %s has nonfree parts compiled in.\n"
1042 "Therefore it is not legally redistributable.\n",
1046 "%s is free software; you can redistribute it and/or modify\n"
1047 "it under the terms of the GNU General Public License as published by\n"
1048 "the Free Software Foundation; either version 3 of the License, or\n"
1049 "(at your option) any later version.\n"
1051 "%s is distributed in the hope that it will be useful,\n"
1052 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1053 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1054 "GNU General Public License for more details.\n"
1056 "You should have received a copy of the GNU General Public License\n"
1057 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
1058 program_name, program_name, program_name );
1061 "%s is free software; you can redistribute it and/or modify\n"
1062 "it under the terms of the GNU General Public License as published by\n"
1063 "the Free Software Foundation; either version 2 of the License, or\n"
1064 "(at your option) any later version.\n"
1066 "%s is distributed in the hope that it will be useful,\n"
1067 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1068 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1069 "GNU General Public License for more details.\n"
1071 "You should have received a copy of the GNU General Public License\n"
1072 "along with %s; if not, write to the Free Software\n"
1073 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
1074 program_name, program_name, program_name );
1077 "%s is free software; you can redistribute it and/or modify\n"
1078 "it under the terms of the GNU Lesser General Public License as published by\n"
1079 "the Free Software Foundation; either version 3 of the License, or\n"
1080 "(at your option) any later version.\n"
1082 "%s is distributed in the hope that it will be useful,\n"
1083 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1084 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1085 "GNU Lesser General Public License for more details.\n"
1087 "You should have received a copy of the GNU Lesser General Public License\n"
1088 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
1089 program_name, program_name, program_name );
1092 "%s is free software; you can redistribute it and/or\n"
1093 "modify it under the terms of the GNU Lesser General Public\n"
1094 "License as published by the Free Software Foundation; either\n"
1095 "version 2.1 of the License, or (at your option) any later version.\n"
1097 "%s is distributed in the hope that it will be useful,\n"
1098 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1099 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
1100 "Lesser General Public License for more details.\n"
1102 "You should have received a copy of the GNU Lesser General Public\n"
1103 "License along with %s; if not, write to the Free Software\n"
1104 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
1105 program_name, program_name, program_name );
1111 int show_formats(void *optctx, const char *opt, const char *arg)
1113 AVInputFormat *ifmt = NULL;
1114 AVOutputFormat *ofmt = NULL;
1115 const char *last_name;
1117 printf("File formats:\n"
1118 " D. = Demuxing supported\n"
1119 " .E = Muxing supported\n"
1125 const char *name = NULL;
1126 const char *long_name = NULL;
1128 while ((ofmt = av_oformat_next(ofmt))) {
1129 if ((name == NULL || strcmp(ofmt->name, name) < 0) &&
1130 strcmp(ofmt->name, last_name) > 0) {
1132 long_name = ofmt->long_name;
1136 while ((ifmt = av_iformat_next(ifmt))) {
1137 if ((name == NULL || strcmp(ifmt->name, name) < 0) &&
1138 strcmp(ifmt->name, last_name) > 0) {
1140 long_name = ifmt->long_name;
1143 if (name && strcmp(ifmt->name, name) == 0)
1150 printf(" %s%s %-15s %s\n",
1154 long_name ? long_name:" ");
1159 #define PRINT_CODEC_SUPPORTED(codec, field, type, list_name, term, get_name) \
1160 if (codec->field) { \
1161 const type *p = codec->field; \
1163 printf(" Supported " list_name ":"); \
1164 while (*p != term) { \
1166 printf(" %s", name); \
1172 static void print_codec(const AVCodec *c)
1174 int encoder = av_codec_is_encoder(c);
1176 printf("%s %s [%s]:\n", encoder ? "Encoder" : "Decoder", c->name,
1177 c->long_name ? c->long_name : "");
1179 if (c->type == AVMEDIA_TYPE_VIDEO) {
1180 printf(" Threading capabilities: ");
1181 switch (c->capabilities & (CODEC_CAP_FRAME_THREADS |
1182 CODEC_CAP_SLICE_THREADS)) {
1183 case CODEC_CAP_FRAME_THREADS |
1184 CODEC_CAP_SLICE_THREADS: printf("frame and slice"); break;
1185 case CODEC_CAP_FRAME_THREADS: printf("frame"); break;
1186 case CODEC_CAP_SLICE_THREADS: printf("slice"); break;
1187 default: printf("no"); break;
1192 if (c->supported_framerates) {
1193 const AVRational *fps = c->supported_framerates;
1195 printf(" Supported framerates:");
1197 printf(" %d/%d", fps->num, fps->den);
1202 PRINT_CODEC_SUPPORTED(c, pix_fmts, enum AVPixelFormat, "pixel formats",
1203 AV_PIX_FMT_NONE, GET_PIX_FMT_NAME);
1204 PRINT_CODEC_SUPPORTED(c, supported_samplerates, int, "sample rates", 0,
1205 GET_SAMPLE_RATE_NAME);
1206 PRINT_CODEC_SUPPORTED(c, sample_fmts, enum AVSampleFormat, "sample formats",
1207 AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME);
1208 PRINT_CODEC_SUPPORTED(c, channel_layouts, uint64_t, "channel layouts",
1209 0, GET_CH_LAYOUT_DESC);
1211 if (c->priv_class) {
1212 show_help_children(c->priv_class,
1213 AV_OPT_FLAG_ENCODING_PARAM |
1214 AV_OPT_FLAG_DECODING_PARAM);
1218 static char get_media_type_char(enum AVMediaType type)
1221 case AVMEDIA_TYPE_VIDEO: return 'V';
1222 case AVMEDIA_TYPE_AUDIO: return 'A';
1223 case AVMEDIA_TYPE_DATA: return 'D';
1224 case AVMEDIA_TYPE_SUBTITLE: return 'S';
1225 case AVMEDIA_TYPE_ATTACHMENT:return 'T';
1226 default: return '?';
1230 static const AVCodec *next_codec_for_id(enum AVCodecID id, const AVCodec *prev,
1233 while ((prev = av_codec_next(prev))) {
1234 if (prev->id == id &&
1235 (encoder ? av_codec_is_encoder(prev) : av_codec_is_decoder(prev)))
1241 static int compare_codec_desc(const void *a, const void *b)
1243 const AVCodecDescriptor * const *da = a;
1244 const AVCodecDescriptor * const *db = b;
1246 return (*da)->type != (*db)->type ? (*da)->type - (*db)->type :
1247 strcmp((*da)->name, (*db)->name);
1250 static unsigned get_codecs_sorted(const AVCodecDescriptor ***rcodecs)
1252 const AVCodecDescriptor *desc = NULL;
1253 const AVCodecDescriptor **codecs;
1254 unsigned nb_codecs = 0, i = 0;
1256 while ((desc = avcodec_descriptor_next(desc)))
1258 if (!(codecs = av_calloc(nb_codecs, sizeof(*codecs)))) {
1259 av_log(NULL, AV_LOG_ERROR, "Out of memory\n");
1263 while ((desc = avcodec_descriptor_next(desc)))
1265 av_assert0(i == nb_codecs);
1266 qsort(codecs, nb_codecs, sizeof(*codecs), compare_codec_desc);
1271 static void print_codecs_for_id(enum AVCodecID id, int encoder)
1273 const AVCodec *codec = NULL;
1275 printf(" (%s: ", encoder ? "encoders" : "decoders");
1277 while ((codec = next_codec_for_id(id, codec, encoder)))
1278 printf("%s ", codec->name);
1283 int show_codecs(void *optctx, const char *opt, const char *arg)
1285 const AVCodecDescriptor **codecs;
1286 unsigned i, nb_codecs = get_codecs_sorted(&codecs);
1289 " D..... = Decoding supported\n"
1290 " .E.... = Encoding supported\n"
1291 " ..V... = Video codec\n"
1292 " ..A... = Audio codec\n"
1293 " ..S... = Subtitle codec\n"
1294 " ...I.. = Intra frame-only codec\n"
1295 " ....L. = Lossy compression\n"
1296 " .....S = Lossless compression\n"
1298 for (i = 0; i < nb_codecs; i++) {
1299 const AVCodecDescriptor *desc = codecs[i];
1300 const AVCodec *codec = NULL;
1303 printf(avcodec_find_decoder(desc->id) ? "D" : ".");
1304 printf(avcodec_find_encoder(desc->id) ? "E" : ".");
1306 printf("%c", get_media_type_char(desc->type));
1307 printf((desc->props & AV_CODEC_PROP_INTRA_ONLY) ? "I" : ".");
1308 printf((desc->props & AV_CODEC_PROP_LOSSY) ? "L" : ".");
1309 printf((desc->props & AV_CODEC_PROP_LOSSLESS) ? "S" : ".");
1311 printf(" %-20s %s", desc->name, desc->long_name ? desc->long_name : "");
1313 /* print decoders/encoders when there's more than one or their
1314 * names are different from codec name */
1315 while ((codec = next_codec_for_id(desc->id, codec, 0))) {
1316 if (strcmp(codec->name, desc->name)) {
1317 print_codecs_for_id(desc->id, 0);
1322 while ((codec = next_codec_for_id(desc->id, codec, 1))) {
1323 if (strcmp(codec->name, desc->name)) {
1324 print_codecs_for_id(desc->id, 1);
1335 static void print_codecs(int encoder)
1337 const AVCodecDescriptor **codecs;
1338 unsigned i, nb_codecs = get_codecs_sorted(&codecs);
1343 " S..... = Subtitle\n"
1344 " .F.... = Frame-level multithreading\n"
1345 " ..S... = Slice-level multithreading\n"
1346 " ...X.. = Codec is experimental\n"
1347 " ....B. = Supports draw_horiz_band\n"
1348 " .....D = Supports direct rendering method 1\n"
1350 encoder ? "Encoders" : "Decoders");
1351 for (i = 0; i < nb_codecs; i++) {
1352 const AVCodecDescriptor *desc = codecs[i];
1353 const AVCodec *codec = NULL;
1355 while ((codec = next_codec_for_id(desc->id, codec, encoder))) {
1356 printf(" %c", get_media_type_char(desc->type));
1357 printf((codec->capabilities & CODEC_CAP_FRAME_THREADS) ? "F" : ".");
1358 printf((codec->capabilities & CODEC_CAP_SLICE_THREADS) ? "S" : ".");
1359 printf((codec->capabilities & CODEC_CAP_EXPERIMENTAL) ? "X" : ".");
1360 printf((codec->capabilities & CODEC_CAP_DRAW_HORIZ_BAND)?"B" : ".");
1361 printf((codec->capabilities & CODEC_CAP_DR1) ? "D" : ".");
1363 printf(" %-20s %s", codec->name, codec->long_name ? codec->long_name : "");
1364 if (strcmp(codec->name, desc->name))
1365 printf(" (codec %s)", desc->name);
1373 int show_decoders(void *optctx, const char *opt, const char *arg)
1379 int show_encoders(void *optctx, const char *opt, const char *arg)
1385 int show_bsfs(void *optctx, const char *opt, const char *arg)
1387 AVBitStreamFilter *bsf = NULL;
1389 printf("Bitstream filters:\n");
1390 while ((bsf = av_bitstream_filter_next(bsf)))
1391 printf("%s\n", bsf->name);
1396 int show_protocols(void *optctx, const char *opt, const char *arg)
1398 void *opaque = NULL;
1401 printf("Supported file protocols:\n"
1403 while ((name = avio_enum_protocols(&opaque, 0)))
1404 printf("%s\n", name);
1405 printf("Output:\n");
1406 while ((name = avio_enum_protocols(&opaque, 1)))
1407 printf("%s\n", name);
1411 int show_filters(void *optctx, const char *opt, const char *arg)
1413 AVFilter av_unused(**filter) = NULL;
1414 char descr[64], *descr_cur;
1416 const AVFilterPad *pad;
1418 printf("Filters:\n");
1420 while ((filter = av_filter_next(filter)) && *filter) {
1422 for (i = 0; i < 2; i++) {
1424 *(descr_cur++) = '-';
1425 *(descr_cur++) = '>';
1427 pad = i ? (*filter)->outputs : (*filter)->inputs;
1428 for (j = 0; pad && pad[j].name; j++) {
1429 if (descr_cur >= descr + sizeof(descr) - 4)
1431 *(descr_cur++) = get_media_type_char(pad[j].type);
1434 *(descr_cur++) = '|';
1437 printf("%-16s %-10s %s\n", (*filter)->name, descr, (*filter)->description);
1443 int show_pix_fmts(void *optctx, const char *opt, const char *arg)
1445 const AVPixFmtDescriptor *pix_desc = NULL;
1447 printf("Pixel formats:\n"
1448 "I.... = Supported Input format for conversion\n"
1449 ".O... = Supported Output format for conversion\n"
1450 "..H.. = Hardware accelerated format\n"
1451 "...P. = Paletted format\n"
1452 "....B = Bitstream format\n"
1453 "FLAGS NAME NB_COMPONENTS BITS_PER_PIXEL\n"
1457 # define sws_isSupportedInput(x) 0
1458 # define sws_isSupportedOutput(x) 0
1461 while ((pix_desc = av_pix_fmt_desc_next(pix_desc))) {
1462 enum AVPixelFormat pix_fmt = av_pix_fmt_desc_get_id(pix_desc);
1463 printf("%c%c%c%c%c %-16s %d %2d\n",
1464 sws_isSupportedInput (pix_fmt) ? 'I' : '.',
1465 sws_isSupportedOutput(pix_fmt) ? 'O' : '.',
1466 pix_desc->flags & PIX_FMT_HWACCEL ? 'H' : '.',
1467 pix_desc->flags & PIX_FMT_PAL ? 'P' : '.',
1468 pix_desc->flags & PIX_FMT_BITSTREAM ? 'B' : '.',
1470 pix_desc->nb_components,
1471 av_get_bits_per_pixel(pix_desc));
1476 int show_layouts(void *optctx, const char *opt, const char *arg)
1480 const char *name, *descr;
1482 printf("Individual channels:\n"
1483 "NAME DESCRIPTION\n");
1484 for (i = 0; i < 63; i++) {
1485 name = av_get_channel_name((uint64_t)1 << i);
1488 descr = av_get_channel_description((uint64_t)1 << i);
1489 printf("%-12s%s\n", name, descr);
1491 printf("\nStandard channel layouts:\n"
1492 "NAME DECOMPOSITION\n");
1493 for (i = 0; !av_get_standard_channel_layout(i, &layout, &name); i++) {
1495 printf("%-12s", name);
1496 for (j = 1; j; j <<= 1)
1498 printf("%s%s", (layout & (j - 1)) ? "+" : "", av_get_channel_name(j));
1505 int show_sample_fmts(void *optctx, const char *opt, const char *arg)
1509 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
1510 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
1514 static void show_help_codec(const char *name, int encoder)
1516 const AVCodecDescriptor *desc;
1517 const AVCodec *codec;
1520 av_log(NULL, AV_LOG_ERROR, "No codec name specified.\n");
1524 codec = encoder ? avcodec_find_encoder_by_name(name) :
1525 avcodec_find_decoder_by_name(name);
1529 else if ((desc = avcodec_descriptor_get_by_name(name))) {
1532 while ((codec = next_codec_for_id(desc->id, codec, encoder))) {
1538 av_log(NULL, AV_LOG_ERROR, "Codec '%s' is known to FFmpeg, "
1539 "but no %s for it are available. FFmpeg might need to be "
1540 "recompiled with additional external libraries.\n",
1541 name, encoder ? "encoders" : "decoders");
1544 av_log(NULL, AV_LOG_ERROR, "Codec '%s' is not recognized by FFmpeg.\n",
1549 static void show_help_demuxer(const char *name)
1551 const AVInputFormat *fmt = av_find_input_format(name);
1554 av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
1558 printf("Demuxer %s [%s]:\n", fmt->name, fmt->long_name);
1560 if (fmt->extensions)
1561 printf(" Common extensions: %s.\n", fmt->extensions);
1563 if (fmt->priv_class)
1564 show_help_children(fmt->priv_class, AV_OPT_FLAG_DECODING_PARAM);
1567 static void show_help_muxer(const char *name)
1569 const AVCodecDescriptor *desc;
1570 const AVOutputFormat *fmt = av_guess_format(name, NULL, NULL);
1573 av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
1577 printf("Muxer %s [%s]:\n", fmt->name, fmt->long_name);
1579 if (fmt->extensions)
1580 printf(" Common extensions: %s.\n", fmt->extensions);
1582 printf(" Mime type: %s.\n", fmt->mime_type);
1583 if (fmt->video_codec != AV_CODEC_ID_NONE &&
1584 (desc = avcodec_descriptor_get(fmt->video_codec))) {
1585 printf(" Default video codec: %s.\n", desc->name);
1587 if (fmt->audio_codec != AV_CODEC_ID_NONE &&
1588 (desc = avcodec_descriptor_get(fmt->audio_codec))) {
1589 printf(" Default audio codec: %s.\n", desc->name);
1591 if (fmt->subtitle_codec != AV_CODEC_ID_NONE &&
1592 (desc = avcodec_descriptor_get(fmt->subtitle_codec))) {
1593 printf(" Default subtitle codec: %s.\n", desc->name);
1596 if (fmt->priv_class)
1597 show_help_children(fmt->priv_class, AV_OPT_FLAG_ENCODING_PARAM);
1600 int show_help(void *optctx, const char *opt, const char *arg)
1603 av_log_set_callback(log_callback_help);
1605 topic = av_strdup(arg ? arg : "");
1606 par = strchr(topic, '=');
1611 show_help_default(topic, par);
1612 } else if (!strcmp(topic, "decoder")) {
1613 show_help_codec(par, 0);
1614 } else if (!strcmp(topic, "encoder")) {
1615 show_help_codec(par, 1);
1616 } else if (!strcmp(topic, "demuxer")) {
1617 show_help_demuxer(par);
1618 } else if (!strcmp(topic, "muxer")) {
1619 show_help_muxer(par);
1621 show_help_default(topic, par);
1628 int read_yesno(void)
1631 int yesno = (av_toupper(c) == 'Y');
1633 while (c != '\n' && c != EOF)
1639 int cmdutils_read_file(const char *filename, char **bufptr, size_t *size)
1642 FILE *f = fopen(filename, "rb");
1645 av_log(NULL, AV_LOG_ERROR, "Cannot read file '%s': %s\n", filename,
1647 return AVERROR(errno);
1649 fseek(f, 0, SEEK_END);
1651 fseek(f, 0, SEEK_SET);
1652 if (*size == (size_t)-1) {
1653 av_log(NULL, AV_LOG_ERROR, "IO error: %s\n", strerror(errno));
1655 return AVERROR(errno);
1657 *bufptr = av_malloc(*size + 1);
1659 av_log(NULL, AV_LOG_ERROR, "Could not allocate file buffer\n");
1661 return AVERROR(ENOMEM);
1663 ret = fread(*bufptr, 1, *size, f);
1667 av_log(NULL, AV_LOG_ERROR, "Error while reading file '%s': %s\n",
1668 filename, strerror(errno));
1669 ret = AVERROR(errno);
1674 (*bufptr)[(*size)++] = '\0';
1681 FILE *get_preset_file(char *filename, size_t filename_size,
1682 const char *preset_name, int is_path,
1683 const char *codec_name)
1687 const char *base[3] = { getenv("FFMPEG_DATADIR"),
1692 av_strlcpy(filename, preset_name, filename_size);
1693 f = fopen(filename, "r");
1696 char datadir[MAX_PATH], *ls;
1699 if (GetModuleFileNameA(GetModuleHandleA(NULL), datadir, sizeof(datadir) - 1))
1701 for (ls = datadir; ls < datadir + strlen(datadir); ls++)
1702 if (*ls == '\\') *ls = '/';
1704 if (ls = strrchr(datadir, '/'))
1707 strncat(datadir, "/ffpresets", sizeof(datadir) - 1 - strlen(datadir));
1712 for (i = 0; i < 3 && !f; i++) {
1715 snprintf(filename, filename_size, "%s%s/%s.ffpreset", base[i],
1716 i != 1 ? "" : "/.ffmpeg", preset_name);
1717 f = fopen(filename, "r");
1718 if (!f && codec_name) {
1719 snprintf(filename, filename_size,
1720 "%s%s/%s-%s.ffpreset",
1721 base[i], i != 1 ? "" : "/.ffmpeg", codec_name,
1723 f = fopen(filename, "r");
1731 int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec)
1733 int ret = avformat_match_stream_specifier(s, st, spec);
1735 av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec);
1739 AVDictionary *filter_codec_opts(AVDictionary *opts, enum AVCodecID codec_id,
1740 AVFormatContext *s, AVStream *st, AVCodec *codec)
1742 AVDictionary *ret = NULL;
1743 AVDictionaryEntry *t = NULL;
1744 int flags = s->oformat ? AV_OPT_FLAG_ENCODING_PARAM
1745 : AV_OPT_FLAG_DECODING_PARAM;
1747 const AVClass *cc = avcodec_get_class();
1750 codec = s->oformat ? avcodec_find_encoder(codec_id)
1751 : avcodec_find_decoder(codec_id);
1753 switch (st->codec->codec_type) {
1754 case AVMEDIA_TYPE_VIDEO:
1756 flags |= AV_OPT_FLAG_VIDEO_PARAM;
1758 case AVMEDIA_TYPE_AUDIO:
1760 flags |= AV_OPT_FLAG_AUDIO_PARAM;
1762 case AVMEDIA_TYPE_SUBTITLE:
1764 flags |= AV_OPT_FLAG_SUBTITLE_PARAM;
1768 while (t = av_dict_get(opts, "", t, AV_DICT_IGNORE_SUFFIX)) {
1769 char *p = strchr(t->key, ':');
1771 /* check stream specification in opt name */
1773 switch (check_stream_specifier(s, st, p + 1)) {
1774 case 1: *p = 0; break;
1776 default: return NULL;
1779 if (av_opt_find(&cc, t->key, NULL, flags, AV_OPT_SEARCH_FAKE_OBJ) ||
1780 (codec && codec->priv_class &&
1781 av_opt_find(&codec->priv_class, t->key, NULL, flags,
1782 AV_OPT_SEARCH_FAKE_OBJ)))
1783 av_dict_set(&ret, t->key, t->value, 0);
1784 else if (t->key[0] == prefix &&
1785 av_opt_find(&cc, t->key + 1, NULL, flags,
1786 AV_OPT_SEARCH_FAKE_OBJ))
1787 av_dict_set(&ret, t->key + 1, t->value, 0);
1795 AVDictionary **setup_find_stream_info_opts(AVFormatContext *s,
1796 AVDictionary *codec_opts)
1799 AVDictionary **opts;
1803 opts = av_mallocz(s->nb_streams * sizeof(*opts));
1805 av_log(NULL, AV_LOG_ERROR,
1806 "Could not alloc memory for stream options.\n");
1809 for (i = 0; i < s->nb_streams; i++)
1810 opts[i] = filter_codec_opts(codec_opts, s->streams[i]->codec->codec_id,
1811 s, s->streams[i], NULL);
1815 void *grow_array(void *array, int elem_size, int *size, int new_size)
1817 if (new_size >= INT_MAX / elem_size) {
1818 av_log(NULL, AV_LOG_ERROR, "Array too big.\n");
1821 if (*size < new_size) {
1822 uint8_t *tmp = av_realloc(array, new_size*elem_size);
1824 av_log(NULL, AV_LOG_ERROR, "Could not alloc buffer.\n");
1827 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
1834 static int alloc_buffer(FrameBuffer **pool, AVCodecContext *s, FrameBuffer **pbuf)
1836 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt);
1840 int h_chroma_shift, v_chroma_shift;
1841 int edge = 32; // XXX should be avcodec_get_edge_width(), but that fails on svq1
1842 int w = s->width, h = s->height;
1845 return AVERROR(EINVAL);
1846 pixel_size = desc->comp[0].step_minus1 + 1;
1848 buf = av_mallocz(sizeof(*buf));
1850 return AVERROR(ENOMEM);
1852 avcodec_align_dimensions(s, &w, &h);
1854 if (!(s->flags & CODEC_FLAG_EMU_EDGE)) {
1859 if ((ret = av_image_alloc(buf->base, buf->linesize, w, h,
1860 s->pix_fmt, 32)) < 0) {
1862 av_log(s, AV_LOG_ERROR, "alloc_buffer: av_image_alloc() failed\n");
1866 avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
1867 for (i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) {
1868 const int h_shift = i==0 ? 0 : h_chroma_shift;
1869 const int v_shift = i==0 ? 0 : v_chroma_shift;
1870 if ((s->flags & CODEC_FLAG_EMU_EDGE) || !buf->linesize[i] || !buf->base[i])
1871 buf->data[i] = buf->base[i];
1873 buf->data[i] = buf->base[i] +
1874 FFALIGN((buf->linesize[i]*edge >> v_shift) +
1875 (pixel_size*edge >> h_shift), 32);
1879 buf->pix_fmt = s->pix_fmt;
1886 int codec_get_buffer(AVCodecContext *s, AVFrame *frame)
1888 FrameBuffer **pool = s->opaque;
1892 if(av_image_check_size(s->width, s->height, 0, s) || s->pix_fmt<0) {
1893 av_log(s, AV_LOG_ERROR, "codec_get_buffer: image parameters invalid\n");
1897 if (!*pool && (ret = alloc_buffer(pool, s, pool)) < 0)
1903 if (buf->w != s->width || buf->h != s->height || buf->pix_fmt != s->pix_fmt) {
1904 av_freep(&buf->base[0]);
1906 if ((ret = alloc_buffer(pool, s, &buf)) < 0)
1909 av_assert0(!buf->refcount);
1912 frame->opaque = buf;
1913 frame->type = FF_BUFFER_TYPE_USER;
1914 frame->extended_data = frame->data;
1916 for (i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) {
1917 frame->base[i] = buf->base[i]; // XXX h264.c uses base though it shouldn't
1918 frame->data[i] = buf->data[i];
1919 frame->linesize[i] = buf->linesize[i];
1925 static void unref_buffer(FrameBuffer *buf)
1927 FrameBuffer **pool = buf->pool;
1929 av_assert0(buf->refcount > 0);
1931 if (!buf->refcount) {
1933 for(tmp= *pool; tmp; tmp= tmp->next)
1934 av_assert1(tmp != buf);
1941 void codec_release_buffer(AVCodecContext *s, AVFrame *frame)
1943 FrameBuffer *buf = frame->opaque;
1946 if(frame->type!=FF_BUFFER_TYPE_USER) {
1947 avcodec_default_release_buffer(s, frame);
1951 for (i = 0; i < FF_ARRAY_ELEMS(frame->data); i++)
1952 frame->data[i] = NULL;
1957 void filter_release_buffer(AVFilterBuffer *fb)
1959 FrameBuffer *buf = fb->priv;
1964 void free_buffer_pool(FrameBuffer **pool)
1966 FrameBuffer *buf = *pool;
1969 av_freep(&buf->base[0]);