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 const av_unused AVClass *rc_class;
478 const AVClass *sc, *swr_class;
480 if (!strcmp(opt, "debug") || !strcmp(opt, "fdebug"))
481 av_log_set_level(AV_LOG_DEBUG);
483 if (!(p = strchr(opt, ':')))
484 p = opt + strlen(opt);
485 av_strlcpy(opt_stripped, opt, FFMIN(sizeof(opt_stripped), p - opt + 1));
487 if ((o = av_opt_find(&cc, opt_stripped, NULL, 0,
488 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) ||
489 ((opt[0] == 'v' || opt[0] == 'a' || opt[0] == 's') &&
490 (o = av_opt_find(&cc, opt + 1, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ)))) {
491 av_dict_set(&codec_opts, opt, arg, FLAGS);
494 if ((o = av_opt_find(&fc, opt, NULL, 0,
495 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
496 av_dict_set(&format_opts, opt, arg, FLAGS);
498 av_log(NULL, AV_LOG_VERBOSE, "Routing %s to codec and muxer layer\n", opt);
502 sc = sws_get_class();
503 if (!consumed && av_opt_find(&sc, opt, NULL, 0,
504 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) {
505 // XXX we only support sws_flags, not arbitrary sws options
506 int ret = av_opt_set(sws_opts, opt, arg, 0);
508 av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
514 #if CONFIG_SWRESAMPLE
515 swr_class = swr_get_class();
516 if (!consumed && (o=av_opt_find(&swr_class, opt, NULL, 0,
517 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
518 struct SwrContext *swr = swr_alloc();
519 int ret = av_opt_set(swr, opt, arg, 0);
522 av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
525 av_dict_set(&swr_opts, opt, arg, FLAGS);
529 #if CONFIG_AVRESAMPLE
530 rc_class = avresample_get_class();
531 if ((o=av_opt_find(&rc_class, opt, NULL, 0,
532 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
533 av_dict_set(&resample_opts, opt, arg, FLAGS);
540 return AVERROR_OPTION_NOT_FOUND;
544 * Check whether given option is a group separator.
546 * @return index of the group definition that matched or -1 if none
548 static int match_group_separator(const OptionGroupDef *groups, int nb_groups,
553 for (i = 0; i < nb_groups; i++) {
554 const OptionGroupDef *p = &groups[i];
555 if (p->sep && !strcmp(p->sep, opt))
563 * Finish parsing an option group.
565 * @param group_idx which group definition should this group belong to
566 * @param arg argument of the group delimiting option
568 static void finish_group(OptionParseContext *octx, int group_idx,
571 OptionGroupList *l = &octx->groups[group_idx];
574 GROW_ARRAY(l->groups, l->nb_groups);
575 g = &l->groups[l->nb_groups - 1];
577 *g = octx->cur_group;
579 g->group_def = l->group_def;
581 g->sws_opts = sws_opts;
583 g->swr_opts = swr_opts;
584 g->codec_opts = codec_opts;
585 g->format_opts = format_opts;
586 g->resample_opts = resample_opts;
590 resample_opts = NULL;
597 memset(&octx->cur_group, 0, sizeof(octx->cur_group));
601 * Add an option instance to currently parsed group.
603 static void add_opt(OptionParseContext *octx, const OptionDef *opt,
604 const char *key, const char *val)
606 int global = !(opt->flags & (OPT_PERFILE | OPT_SPEC | OPT_OFFSET));
607 OptionGroup *g = global ? &octx->global_opts : &octx->cur_group;
609 GROW_ARRAY(g->opts, g->nb_opts);
610 g->opts[g->nb_opts - 1].opt = opt;
611 g->opts[g->nb_opts - 1].key = key;
612 g->opts[g->nb_opts - 1].val = val;
615 static void init_parse_context(OptionParseContext *octx,
616 const OptionGroupDef *groups, int nb_groups)
618 static const OptionGroupDef global_group = { "global" };
621 memset(octx, 0, sizeof(*octx));
623 octx->nb_groups = nb_groups;
624 octx->groups = av_mallocz(sizeof(*octx->groups) * octx->nb_groups);
628 for (i = 0; i < octx->nb_groups; i++)
629 octx->groups[i].group_def = &groups[i];
631 octx->global_opts.group_def = &global_group;
632 octx->global_opts.arg = "";
637 void uninit_parse_context(OptionParseContext *octx)
641 for (i = 0; i < octx->nb_groups; i++) {
642 OptionGroupList *l = &octx->groups[i];
644 for (j = 0; j < l->nb_groups; j++) {
645 av_freep(&l->groups[j].opts);
646 av_dict_free(&l->groups[j].codec_opts);
647 av_dict_free(&l->groups[j].format_opts);
648 av_dict_free(&l->groups[j].resample_opts);
650 sws_freeContext(l->groups[j].sws_opts);
652 av_dict_free(&l->groups[j].swr_opts);
654 av_freep(&l->groups);
656 av_freep(&octx->groups);
658 av_freep(&octx->cur_group.opts);
659 av_freep(&octx->global_opts.opts);
664 int split_commandline(OptionParseContext *octx, int argc, char *argv[],
665 const OptionDef *options,
666 const OptionGroupDef *groups, int nb_groups)
671 /* perform system-dependent conversions for arguments list */
672 prepare_app_arguments(&argc, &argv);
674 init_parse_context(octx, groups, nb_groups);
675 av_log(NULL, AV_LOG_DEBUG, "Splitting the commandline.\n");
677 while (optindex < argc) {
678 const char *opt = argv[optindex++], *arg;
682 av_log(NULL, AV_LOG_DEBUG, "Reading option '%s' ...", opt);
684 if (opt[0] == '-' && opt[1] == '-' && !opt[2]) {
688 /* unnamed group separators, e.g. output filename */
689 if (opt[0] != '-' || !opt[1] || dashdash+1 == optindex) {
690 finish_group(octx, 0, opt);
691 av_log(NULL, AV_LOG_DEBUG, " matched as %s.\n", groups[0].name);
696 #define GET_ARG(arg) \
698 arg = argv[optindex++]; \
700 av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'.\n", opt);\
701 return AVERROR(EINVAL); \
705 /* named group separators, e.g. -i */
706 if ((ret = match_group_separator(groups, nb_groups, opt)) >= 0) {
708 finish_group(octx, ret, arg);
709 av_log(NULL, AV_LOG_DEBUG, " matched as %s with argument '%s'.\n",
710 groups[ret].name, arg);
715 po = find_option(options, opt);
717 if (po->flags & OPT_EXIT) {
718 /* optional argument, e.g. -h */
719 arg = argv[optindex++];
720 } else if (po->flags & HAS_ARG) {
726 add_opt(octx, po, opt, arg);
727 av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
728 "argument '%s'.\n", po->name, po->help, arg);
733 if (argv[optindex]) {
734 ret = opt_default(NULL, opt, argv[optindex]);
736 av_log(NULL, AV_LOG_DEBUG, " matched as AVOption '%s' with "
737 "argument '%s'.\n", opt, argv[optindex]);
740 } else if (ret != AVERROR_OPTION_NOT_FOUND) {
741 av_log(NULL, AV_LOG_ERROR, "Error parsing option '%s' "
742 "with argument '%s'.\n", opt, argv[optindex]);
747 /* boolean -nofoo options */
748 if (opt[0] == 'n' && opt[1] == 'o' &&
749 (po = find_option(options, opt + 2)) &&
750 po->name && po->flags & OPT_BOOL) {
751 add_opt(octx, po, opt, "0");
752 av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
753 "argument 0.\n", po->name, po->help);
757 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'.\n", opt);
758 return AVERROR_OPTION_NOT_FOUND;
761 if (octx->cur_group.nb_opts || codec_opts || format_opts || resample_opts)
762 av_log(NULL, AV_LOG_WARNING, "Trailing options were found on the "
765 av_log(NULL, AV_LOG_DEBUG, "Finished splitting the commandline.\n");
770 int opt_loglevel(void *optctx, const char *opt, const char *arg)
772 const struct { const char *name; int level; } log_levels[] = {
773 { "quiet" , AV_LOG_QUIET },
774 { "panic" , AV_LOG_PANIC },
775 { "fatal" , AV_LOG_FATAL },
776 { "error" , AV_LOG_ERROR },
777 { "warning", AV_LOG_WARNING },
778 { "info" , AV_LOG_INFO },
779 { "verbose", AV_LOG_VERBOSE },
780 { "debug" , AV_LOG_DEBUG },
786 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) {
787 if (!strcmp(log_levels[i].name, arg)) {
788 av_log_set_level(log_levels[i].level);
793 level = strtol(arg, &tail, 10);
795 av_log(NULL, AV_LOG_FATAL, "Invalid loglevel \"%s\". "
796 "Possible levels are numbers or:\n", arg);
797 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++)
798 av_log(NULL, AV_LOG_FATAL, "\"%s\"\n", log_levels[i].name);
801 av_log_set_level(level);
805 static void expand_filename_template(AVBPrint *bp, const char *template,
810 while ((c = *(template++))) {
812 if (!(c = *(template++)))
816 av_bprintf(bp, "%s", program_name);
819 av_bprintf(bp, "%04d%02d%02d-%02d%02d%02d",
820 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
821 tm->tm_hour, tm->tm_min, tm->tm_sec);
824 av_bprint_chars(bp, c, 1);
828 av_bprint_chars(bp, c, 1);
833 static int init_report(const char *env)
835 char *filename_template = NULL;
842 if (report_file) /* already opened */
845 tm = localtime(&now);
847 while (env && *env) {
848 if ((ret = av_opt_get_key_value(&env, "=", ":", 0, &key, &val)) < 0) {
850 av_log(NULL, AV_LOG_ERROR,
851 "Failed to parse FFREPORT environment variable: %s\n",
858 if (!strcmp(key, "file")) {
859 av_free(filename_template);
860 filename_template = val;
863 av_log(NULL, AV_LOG_ERROR, "Unknown key '%s' in FFREPORT\n", key);
869 av_bprint_init(&filename, 0, 1);
870 expand_filename_template(&filename,
871 av_x_if_null(filename_template, "%p-%t.log"), tm);
872 av_free(filename_template);
873 if (!av_bprint_is_complete(&filename)) {
874 av_log(NULL, AV_LOG_ERROR, "Out of memory building report file name\n");
875 return AVERROR(ENOMEM);
878 report_file = fopen(filename.str, "w");
880 av_log(NULL, AV_LOG_ERROR, "Failed to open report \"%s\": %s\n",
881 filename.str, strerror(errno));
882 return AVERROR(errno);
884 av_log_set_callback(log_callback_report);
885 av_log(NULL, AV_LOG_INFO,
886 "%s started on %04d-%02d-%02d at %02d:%02d:%02d\n"
887 "Report written to \"%s\"\n",
889 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
890 tm->tm_hour, tm->tm_min, tm->tm_sec,
892 av_log_set_level(FFMAX(av_log_get_level(), AV_LOG_VERBOSE));
893 av_bprint_finalize(&filename, NULL);
897 int opt_report(const char *opt)
899 return init_report(NULL);
902 int opt_max_alloc(void *optctx, const char *opt, const char *arg)
907 max = strtol(arg, &tail, 10);
909 av_log(NULL, AV_LOG_FATAL, "Invalid max_alloc \"%s\".\n", arg);
916 int opt_cpuflags(void *optctx, const char *opt, const char *arg)
919 unsigned flags = av_get_cpu_flags();
921 if ((ret = av_parse_cpu_caps(&flags, arg)) < 0)
924 av_force_cpu_flags(flags);
928 int opt_timelimit(void *optctx, const char *opt, const char *arg)
931 int lim = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
932 struct rlimit rl = { lim, lim + 1 };
933 if (setrlimit(RLIMIT_CPU, &rl))
936 av_log(NULL, AV_LOG_WARNING, "-%s not implemented on this OS\n", opt);
941 void print_error(const char *filename, int err)
944 const char *errbuf_ptr = errbuf;
946 if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
947 errbuf_ptr = strerror(AVUNERROR(err));
948 av_log(NULL, AV_LOG_ERROR, "%s: %s\n", filename, errbuf_ptr);
951 static int warned_cfg = 0;
954 #define SHOW_VERSION 2
955 #define SHOW_CONFIG 4
956 #define SHOW_COPYRIGHT 8
958 #define PRINT_LIB_INFO(libname, LIBNAME, flags, level) \
959 if (CONFIG_##LIBNAME) { \
960 const char *indent = flags & INDENT? " " : ""; \
961 if (flags & SHOW_VERSION) { \
962 unsigned int version = libname##_version(); \
963 av_log(NULL, level, \
964 "%slib%-11s %2d.%3d.%3d / %2d.%3d.%3d\n", \
966 LIB##LIBNAME##_VERSION_MAJOR, \
967 LIB##LIBNAME##_VERSION_MINOR, \
968 LIB##LIBNAME##_VERSION_MICRO, \
969 version >> 16, version >> 8 & 0xff, version & 0xff); \
971 if (flags & SHOW_CONFIG) { \
972 const char *cfg = libname##_configuration(); \
973 if (strcmp(FFMPEG_CONFIGURATION, cfg)) { \
975 av_log(NULL, level, \
976 "%sWARNING: library configuration mismatch\n", \
980 av_log(NULL, level, "%s%-11s configuration: %s\n", \
981 indent, #libname, cfg); \
986 static void print_all_libs_info(int flags, int level)
988 PRINT_LIB_INFO(avutil, AVUTIL, flags, level);
989 PRINT_LIB_INFO(avcodec, AVCODEC, flags, level);
990 PRINT_LIB_INFO(avformat, AVFORMAT, flags, level);
991 PRINT_LIB_INFO(avdevice, AVDEVICE, flags, level);
992 PRINT_LIB_INFO(avfilter, AVFILTER, flags, level);
993 // PRINT_LIB_INFO(avresample, AVRESAMPLE, flags, level);
994 PRINT_LIB_INFO(swscale, SWSCALE, flags, level);
995 PRINT_LIB_INFO(swresample,SWRESAMPLE, flags, level);
997 PRINT_LIB_INFO(postproc, POSTPROC, flags, level);
1001 static void print_program_info(int flags, int level)
1003 const char *indent = flags & INDENT? " " : "";
1005 av_log(NULL, level, "%s version " FFMPEG_VERSION, program_name);
1006 if (flags & SHOW_COPYRIGHT)
1007 av_log(NULL, level, " Copyright (c) %d-%d the FFmpeg developers",
1008 program_birth_year, this_year);
1009 av_log(NULL, level, "\n");
1010 av_log(NULL, level, "%sbuilt on %s %s with %s\n",
1011 indent, __DATE__, __TIME__, CC_IDENT);
1013 av_log(NULL, level, "%sconfiguration: " FFMPEG_CONFIGURATION "\n", indent);
1016 void show_banner(int argc, char **argv, const OptionDef *options)
1018 int idx = locate_option(argc, argv, options, "version");
1022 print_program_info (INDENT|SHOW_COPYRIGHT, AV_LOG_INFO);
1023 print_all_libs_info(INDENT|SHOW_CONFIG, AV_LOG_INFO);
1024 print_all_libs_info(INDENT|SHOW_VERSION, AV_LOG_INFO);
1027 int show_version(void *optctx, const char *opt, const char *arg)
1029 av_log_set_callback(log_callback_help);
1030 print_program_info (0 , AV_LOG_INFO);
1031 print_all_libs_info(SHOW_VERSION, AV_LOG_INFO);
1036 int show_license(void *optctx, const char *opt, const char *arg)
1040 "This version of %s has nonfree parts compiled in.\n"
1041 "Therefore it is not legally redistributable.\n",
1045 "%s is free software; you can redistribute it and/or modify\n"
1046 "it under the terms of the GNU General Public License as published by\n"
1047 "the Free Software Foundation; either version 3 of the License, or\n"
1048 "(at your option) any later version.\n"
1050 "%s is distributed in the hope that it will be useful,\n"
1051 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1052 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1053 "GNU General Public License for more details.\n"
1055 "You should have received a copy of the GNU General Public License\n"
1056 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
1057 program_name, program_name, program_name );
1060 "%s is free software; you can redistribute it and/or modify\n"
1061 "it under the terms of the GNU General Public License as published by\n"
1062 "the Free Software Foundation; either version 2 of the License, or\n"
1063 "(at your option) any later version.\n"
1065 "%s is distributed in the hope that it will be useful,\n"
1066 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1067 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1068 "GNU General Public License for more details.\n"
1070 "You should have received a copy of the GNU General Public License\n"
1071 "along with %s; if not, write to the Free Software\n"
1072 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
1073 program_name, program_name, program_name );
1076 "%s is free software; you can redistribute it and/or modify\n"
1077 "it under the terms of the GNU Lesser General Public License as published by\n"
1078 "the Free Software Foundation; either version 3 of the License, or\n"
1079 "(at your option) any later version.\n"
1081 "%s is distributed in the hope that it will be useful,\n"
1082 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1083 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1084 "GNU Lesser General Public License for more details.\n"
1086 "You should have received a copy of the GNU Lesser General Public License\n"
1087 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
1088 program_name, program_name, program_name );
1091 "%s is free software; you can redistribute it and/or\n"
1092 "modify it under the terms of the GNU Lesser General Public\n"
1093 "License as published by the Free Software Foundation; either\n"
1094 "version 2.1 of the License, or (at your option) any later version.\n"
1096 "%s is distributed in the hope that it will be useful,\n"
1097 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1098 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
1099 "Lesser General Public License for more details.\n"
1101 "You should have received a copy of the GNU Lesser General Public\n"
1102 "License along with %s; if not, write to the Free Software\n"
1103 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
1104 program_name, program_name, program_name );
1110 int show_formats(void *optctx, const char *opt, const char *arg)
1112 AVInputFormat *ifmt = NULL;
1113 AVOutputFormat *ofmt = NULL;
1114 const char *last_name;
1116 printf("File formats:\n"
1117 " D. = Demuxing supported\n"
1118 " .E = Muxing supported\n"
1124 const char *name = NULL;
1125 const char *long_name = NULL;
1127 while ((ofmt = av_oformat_next(ofmt))) {
1128 if ((name == NULL || strcmp(ofmt->name, name) < 0) &&
1129 strcmp(ofmt->name, last_name) > 0) {
1131 long_name = ofmt->long_name;
1135 while ((ifmt = av_iformat_next(ifmt))) {
1136 if ((name == NULL || strcmp(ifmt->name, name) < 0) &&
1137 strcmp(ifmt->name, last_name) > 0) {
1139 long_name = ifmt->long_name;
1142 if (name && strcmp(ifmt->name, name) == 0)
1149 printf(" %s%s %-15s %s\n",
1153 long_name ? long_name:" ");
1158 #define PRINT_CODEC_SUPPORTED(codec, field, type, list_name, term, get_name) \
1159 if (codec->field) { \
1160 const type *p = codec->field; \
1162 printf(" Supported " list_name ":"); \
1163 while (*p != term) { \
1165 printf(" %s", name); \
1171 static void print_codec(const AVCodec *c)
1173 int encoder = av_codec_is_encoder(c);
1175 printf("%s %s [%s]:\n", encoder ? "Encoder" : "Decoder", c->name,
1176 c->long_name ? c->long_name : "");
1178 if (c->type == AVMEDIA_TYPE_VIDEO) {
1179 printf(" Threading capabilities: ");
1180 switch (c->capabilities & (CODEC_CAP_FRAME_THREADS |
1181 CODEC_CAP_SLICE_THREADS)) {
1182 case CODEC_CAP_FRAME_THREADS |
1183 CODEC_CAP_SLICE_THREADS: printf("frame and slice"); break;
1184 case CODEC_CAP_FRAME_THREADS: printf("frame"); break;
1185 case CODEC_CAP_SLICE_THREADS: printf("slice"); break;
1186 default: printf("no"); break;
1191 if (c->supported_framerates) {
1192 const AVRational *fps = c->supported_framerates;
1194 printf(" Supported framerates:");
1196 printf(" %d/%d", fps->num, fps->den);
1201 PRINT_CODEC_SUPPORTED(c, pix_fmts, enum AVPixelFormat, "pixel formats",
1202 AV_PIX_FMT_NONE, GET_PIX_FMT_NAME);
1203 PRINT_CODEC_SUPPORTED(c, supported_samplerates, int, "sample rates", 0,
1204 GET_SAMPLE_RATE_NAME);
1205 PRINT_CODEC_SUPPORTED(c, sample_fmts, enum AVSampleFormat, "sample formats",
1206 AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME);
1207 PRINT_CODEC_SUPPORTED(c, channel_layouts, uint64_t, "channel layouts",
1208 0, GET_CH_LAYOUT_DESC);
1210 if (c->priv_class) {
1211 show_help_children(c->priv_class,
1212 AV_OPT_FLAG_ENCODING_PARAM |
1213 AV_OPT_FLAG_DECODING_PARAM);
1217 static char get_media_type_char(enum AVMediaType type)
1220 case AVMEDIA_TYPE_VIDEO: return 'V';
1221 case AVMEDIA_TYPE_AUDIO: return 'A';
1222 case AVMEDIA_TYPE_DATA: return 'D';
1223 case AVMEDIA_TYPE_SUBTITLE: return 'S';
1224 case AVMEDIA_TYPE_ATTACHMENT:return 'T';
1225 default: return '?';
1229 static const AVCodec *next_codec_for_id(enum AVCodecID id, const AVCodec *prev,
1232 while ((prev = av_codec_next(prev))) {
1233 if (prev->id == id &&
1234 (encoder ? av_codec_is_encoder(prev) : av_codec_is_decoder(prev)))
1240 static int compare_codec_desc(const void *a, const void *b)
1242 const AVCodecDescriptor * const *da = a;
1243 const AVCodecDescriptor * const *db = b;
1245 return (*da)->type != (*db)->type ? (*da)->type - (*db)->type :
1246 strcmp((*da)->name, (*db)->name);
1249 static unsigned get_codecs_sorted(const AVCodecDescriptor ***rcodecs)
1251 const AVCodecDescriptor *desc = NULL;
1252 const AVCodecDescriptor **codecs;
1253 unsigned nb_codecs = 0, i = 0;
1255 while ((desc = avcodec_descriptor_next(desc)))
1257 if (!(codecs = av_calloc(nb_codecs, sizeof(*codecs)))) {
1258 av_log(NULL, AV_LOG_ERROR, "Out of memory\n");
1262 while ((desc = avcodec_descriptor_next(desc)))
1264 av_assert0(i == nb_codecs);
1265 qsort(codecs, nb_codecs, sizeof(*codecs), compare_codec_desc);
1270 static void print_codecs_for_id(enum AVCodecID id, int encoder)
1272 const AVCodec *codec = NULL;
1274 printf(" (%s: ", encoder ? "encoders" : "decoders");
1276 while ((codec = next_codec_for_id(id, codec, encoder)))
1277 printf("%s ", codec->name);
1282 int show_codecs(void *optctx, const char *opt, const char *arg)
1284 const AVCodecDescriptor **codecs;
1285 unsigned i, nb_codecs = get_codecs_sorted(&codecs);
1288 " D..... = Decoding supported\n"
1289 " .E.... = Encoding supported\n"
1290 " ..V... = Video codec\n"
1291 " ..A... = Audio codec\n"
1292 " ..S... = Subtitle codec\n"
1293 " ...I.. = Intra frame-only codec\n"
1294 " ....L. = Lossy compression\n"
1295 " .....S = Lossless compression\n"
1297 for (i = 0; i < nb_codecs; i++) {
1298 const AVCodecDescriptor *desc = codecs[i];
1299 const AVCodec *codec = NULL;
1302 printf(avcodec_find_decoder(desc->id) ? "D" : ".");
1303 printf(avcodec_find_encoder(desc->id) ? "E" : ".");
1305 printf("%c", get_media_type_char(desc->type));
1306 printf((desc->props & AV_CODEC_PROP_INTRA_ONLY) ? "I" : ".");
1307 printf((desc->props & AV_CODEC_PROP_LOSSY) ? "L" : ".");
1308 printf((desc->props & AV_CODEC_PROP_LOSSLESS) ? "S" : ".");
1310 printf(" %-20s %s", desc->name, desc->long_name ? desc->long_name : "");
1312 /* print decoders/encoders when there's more than one or their
1313 * names are different from codec name */
1314 while ((codec = next_codec_for_id(desc->id, codec, 0))) {
1315 if (strcmp(codec->name, desc->name)) {
1316 print_codecs_for_id(desc->id, 0);
1321 while ((codec = next_codec_for_id(desc->id, codec, 1))) {
1322 if (strcmp(codec->name, desc->name)) {
1323 print_codecs_for_id(desc->id, 1);
1334 static void print_codecs(int encoder)
1336 const AVCodecDescriptor **codecs;
1337 unsigned i, nb_codecs = get_codecs_sorted(&codecs);
1342 " S..... = Subtitle\n"
1343 " .F.... = Frame-level multithreading\n"
1344 " ..S... = Slice-level multithreading\n"
1345 " ...X.. = Codec is experimental\n"
1346 " ....B. = Supports draw_horiz_band\n"
1347 " .....D = Supports direct rendering method 1\n"
1349 encoder ? "Encoders" : "Decoders");
1350 for (i = 0; i < nb_codecs; i++) {
1351 const AVCodecDescriptor *desc = codecs[i];
1352 const AVCodec *codec = NULL;
1354 while ((codec = next_codec_for_id(desc->id, codec, encoder))) {
1355 printf(" %c", get_media_type_char(desc->type));
1356 printf((codec->capabilities & CODEC_CAP_FRAME_THREADS) ? "F" : ".");
1357 printf((codec->capabilities & CODEC_CAP_SLICE_THREADS) ? "S" : ".");
1358 printf((codec->capabilities & CODEC_CAP_EXPERIMENTAL) ? "X" : ".");
1359 printf((codec->capabilities & CODEC_CAP_DRAW_HORIZ_BAND)?"B" : ".");
1360 printf((codec->capabilities & CODEC_CAP_DR1) ? "D" : ".");
1362 printf(" %-20s %s", codec->name, codec->long_name ? codec->long_name : "");
1363 if (strcmp(codec->name, desc->name))
1364 printf(" (codec %s)", desc->name);
1372 int show_decoders(void *optctx, const char *opt, const char *arg)
1378 int show_encoders(void *optctx, const char *opt, const char *arg)
1384 int show_bsfs(void *optctx, const char *opt, const char *arg)
1386 AVBitStreamFilter *bsf = NULL;
1388 printf("Bitstream filters:\n");
1389 while ((bsf = av_bitstream_filter_next(bsf)))
1390 printf("%s\n", bsf->name);
1395 int show_protocols(void *optctx, const char *opt, const char *arg)
1397 void *opaque = NULL;
1400 printf("Supported file protocols:\n"
1402 while ((name = avio_enum_protocols(&opaque, 0)))
1403 printf("%s\n", name);
1404 printf("Output:\n");
1405 while ((name = avio_enum_protocols(&opaque, 1)))
1406 printf("%s\n", name);
1410 int show_filters(void *optctx, const char *opt, const char *arg)
1412 AVFilter av_unused(**filter) = NULL;
1413 char descr[64], *descr_cur;
1415 const AVFilterPad *pad;
1417 printf("Filters:\n");
1419 while ((filter = av_filter_next(filter)) && *filter) {
1421 for (i = 0; i < 2; i++) {
1423 *(descr_cur++) = '-';
1424 *(descr_cur++) = '>';
1426 pad = i ? (*filter)->outputs : (*filter)->inputs;
1427 for (j = 0; pad && pad[j].name; j++) {
1428 if (descr_cur >= descr + sizeof(descr) - 4)
1430 *(descr_cur++) = get_media_type_char(pad[j].type);
1433 *(descr_cur++) = '|';
1436 printf("%-16s %-10s %s\n", (*filter)->name, descr, (*filter)->description);
1442 int show_pix_fmts(void *optctx, const char *opt, const char *arg)
1444 const AVPixFmtDescriptor *pix_desc = NULL;
1446 printf("Pixel formats:\n"
1447 "I.... = Supported Input format for conversion\n"
1448 ".O... = Supported Output format for conversion\n"
1449 "..H.. = Hardware accelerated format\n"
1450 "...P. = Paletted format\n"
1451 "....B = Bitstream format\n"
1452 "FLAGS NAME NB_COMPONENTS BITS_PER_PIXEL\n"
1456 # define sws_isSupportedInput(x) 0
1457 # define sws_isSupportedOutput(x) 0
1460 while ((pix_desc = av_pix_fmt_desc_next(pix_desc))) {
1461 enum AVPixelFormat pix_fmt = av_pix_fmt_desc_get_id(pix_desc);
1462 printf("%c%c%c%c%c %-16s %d %2d\n",
1463 sws_isSupportedInput (pix_fmt) ? 'I' : '.',
1464 sws_isSupportedOutput(pix_fmt) ? 'O' : '.',
1465 pix_desc->flags & PIX_FMT_HWACCEL ? 'H' : '.',
1466 pix_desc->flags & PIX_FMT_PAL ? 'P' : '.',
1467 pix_desc->flags & PIX_FMT_BITSTREAM ? 'B' : '.',
1469 pix_desc->nb_components,
1470 av_get_bits_per_pixel(pix_desc));
1475 int show_layouts(void *optctx, const char *opt, const char *arg)
1479 const char *name, *descr;
1481 printf("Individual channels:\n"
1482 "NAME DESCRIPTION\n");
1483 for (i = 0; i < 63; i++) {
1484 name = av_get_channel_name((uint64_t)1 << i);
1487 descr = av_get_channel_description((uint64_t)1 << i);
1488 printf("%-12s%s\n", name, descr);
1490 printf("\nStandard channel layouts:\n"
1491 "NAME DECOMPOSITION\n");
1492 for (i = 0; !av_get_standard_channel_layout(i, &layout, &name); i++) {
1494 printf("%-12s", name);
1495 for (j = 1; j; j <<= 1)
1497 printf("%s%s", (layout & (j - 1)) ? "+" : "", av_get_channel_name(j));
1504 int show_sample_fmts(void *optctx, const char *opt, const char *arg)
1508 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
1509 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
1513 static void show_help_codec(const char *name, int encoder)
1515 const AVCodecDescriptor *desc;
1516 const AVCodec *codec;
1519 av_log(NULL, AV_LOG_ERROR, "No codec name specified.\n");
1523 codec = encoder ? avcodec_find_encoder_by_name(name) :
1524 avcodec_find_decoder_by_name(name);
1528 else if ((desc = avcodec_descriptor_get_by_name(name))) {
1531 while ((codec = next_codec_for_id(desc->id, codec, encoder))) {
1537 av_log(NULL, AV_LOG_ERROR, "Codec '%s' is known to FFmpeg, "
1538 "but no %s for it are available. FFmpeg might need to be "
1539 "recompiled with additional external libraries.\n",
1540 name, encoder ? "encoders" : "decoders");
1543 av_log(NULL, AV_LOG_ERROR, "Codec '%s' is not recognized by FFmpeg.\n",
1548 static void show_help_demuxer(const char *name)
1550 const AVInputFormat *fmt = av_find_input_format(name);
1553 av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
1557 printf("Demuxer %s [%s]:\n", fmt->name, fmt->long_name);
1559 if (fmt->extensions)
1560 printf(" Common extensions: %s.\n", fmt->extensions);
1562 if (fmt->priv_class)
1563 show_help_children(fmt->priv_class, AV_OPT_FLAG_DECODING_PARAM);
1566 static void show_help_muxer(const char *name)
1568 const AVCodecDescriptor *desc;
1569 const AVOutputFormat *fmt = av_guess_format(name, NULL, NULL);
1572 av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
1576 printf("Muxer %s [%s]:\n", fmt->name, fmt->long_name);
1578 if (fmt->extensions)
1579 printf(" Common extensions: %s.\n", fmt->extensions);
1581 printf(" Mime type: %s.\n", fmt->mime_type);
1582 if (fmt->video_codec != AV_CODEC_ID_NONE &&
1583 (desc = avcodec_descriptor_get(fmt->video_codec))) {
1584 printf(" Default video codec: %s.\n", desc->name);
1586 if (fmt->audio_codec != AV_CODEC_ID_NONE &&
1587 (desc = avcodec_descriptor_get(fmt->audio_codec))) {
1588 printf(" Default audio codec: %s.\n", desc->name);
1590 if (fmt->subtitle_codec != AV_CODEC_ID_NONE &&
1591 (desc = avcodec_descriptor_get(fmt->subtitle_codec))) {
1592 printf(" Default subtitle codec: %s.\n", desc->name);
1595 if (fmt->priv_class)
1596 show_help_children(fmt->priv_class, AV_OPT_FLAG_ENCODING_PARAM);
1599 int show_help(void *optctx, const char *opt, const char *arg)
1602 av_log_set_callback(log_callback_help);
1604 topic = av_strdup(arg ? arg : "");
1605 par = strchr(topic, '=');
1610 show_help_default(topic, par);
1611 } else if (!strcmp(topic, "decoder")) {
1612 show_help_codec(par, 0);
1613 } else if (!strcmp(topic, "encoder")) {
1614 show_help_codec(par, 1);
1615 } else if (!strcmp(topic, "demuxer")) {
1616 show_help_demuxer(par);
1617 } else if (!strcmp(topic, "muxer")) {
1618 show_help_muxer(par);
1620 show_help_default(topic, par);
1627 int read_yesno(void)
1630 int yesno = (toupper(c) == 'Y');
1632 while (c != '\n' && c != EOF)
1638 int cmdutils_read_file(const char *filename, char **bufptr, size_t *size)
1641 FILE *f = fopen(filename, "rb");
1644 av_log(NULL, AV_LOG_ERROR, "Cannot read file '%s': %s\n", filename,
1646 return AVERROR(errno);
1648 fseek(f, 0, SEEK_END);
1650 fseek(f, 0, SEEK_SET);
1651 if (*size == (size_t)-1) {
1652 av_log(NULL, AV_LOG_ERROR, "IO error: %s\n", strerror(errno));
1654 return AVERROR(errno);
1656 *bufptr = av_malloc(*size + 1);
1658 av_log(NULL, AV_LOG_ERROR, "Could not allocate file buffer\n");
1660 return AVERROR(ENOMEM);
1662 ret = fread(*bufptr, 1, *size, f);
1666 av_log(NULL, AV_LOG_ERROR, "Error while reading file '%s': %s\n",
1667 filename, strerror(errno));
1668 ret = AVERROR(errno);
1673 (*bufptr)[(*size)++] = '\0';
1680 FILE *get_preset_file(char *filename, size_t filename_size,
1681 const char *preset_name, int is_path,
1682 const char *codec_name)
1686 const char *base[3] = { getenv("FFMPEG_DATADIR"),
1691 av_strlcpy(filename, preset_name, filename_size);
1692 f = fopen(filename, "r");
1695 char datadir[MAX_PATH], *ls;
1698 if (GetModuleFileNameA(GetModuleHandleA(NULL), datadir, sizeof(datadir) - 1))
1700 for (ls = datadir; ls < datadir + strlen(datadir); ls++)
1701 if (*ls == '\\') *ls = '/';
1703 if (ls = strrchr(datadir, '/'))
1706 strncat(datadir, "/ffpresets", sizeof(datadir) - 1 - strlen(datadir));
1711 for (i = 0; i < 3 && !f; i++) {
1714 snprintf(filename, filename_size, "%s%s/%s.ffpreset", base[i],
1715 i != 1 ? "" : "/.ffmpeg", preset_name);
1716 f = fopen(filename, "r");
1717 if (!f && codec_name) {
1718 snprintf(filename, filename_size,
1719 "%s%s/%s-%s.ffpreset",
1720 base[i], i != 1 ? "" : "/.ffmpeg", codec_name,
1722 f = fopen(filename, "r");
1730 int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec)
1732 int ret = avformat_match_stream_specifier(s, st, spec);
1734 av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec);
1738 AVDictionary *filter_codec_opts(AVDictionary *opts, enum AVCodecID codec_id,
1739 AVFormatContext *s, AVStream *st, AVCodec *codec)
1741 AVDictionary *ret = NULL;
1742 AVDictionaryEntry *t = NULL;
1743 int flags = s->oformat ? AV_OPT_FLAG_ENCODING_PARAM
1744 : AV_OPT_FLAG_DECODING_PARAM;
1746 const AVClass *cc = avcodec_get_class();
1749 codec = s->oformat ? avcodec_find_encoder(codec_id)
1750 : avcodec_find_decoder(codec_id);
1754 switch (codec->type) {
1755 case AVMEDIA_TYPE_VIDEO:
1757 flags |= AV_OPT_FLAG_VIDEO_PARAM;
1759 case AVMEDIA_TYPE_AUDIO:
1761 flags |= AV_OPT_FLAG_AUDIO_PARAM;
1763 case AVMEDIA_TYPE_SUBTITLE:
1765 flags |= AV_OPT_FLAG_SUBTITLE_PARAM;
1769 while (t = av_dict_get(opts, "", t, AV_DICT_IGNORE_SUFFIX)) {
1770 char *p = strchr(t->key, ':');
1772 /* check stream specification in opt name */
1774 switch (check_stream_specifier(s, st, p + 1)) {
1775 case 1: *p = 0; break;
1777 default: return NULL;
1780 if (av_opt_find(&cc, t->key, NULL, flags, AV_OPT_SEARCH_FAKE_OBJ) ||
1781 (codec && codec->priv_class &&
1782 av_opt_find(&codec->priv_class, t->key, NULL, flags,
1783 AV_OPT_SEARCH_FAKE_OBJ)))
1784 av_dict_set(&ret, t->key, t->value, 0);
1785 else if (t->key[0] == prefix &&
1786 av_opt_find(&cc, t->key + 1, NULL, flags,
1787 AV_OPT_SEARCH_FAKE_OBJ))
1788 av_dict_set(&ret, t->key + 1, t->value, 0);
1796 AVDictionary **setup_find_stream_info_opts(AVFormatContext *s,
1797 AVDictionary *codec_opts)
1800 AVDictionary **opts;
1804 opts = av_mallocz(s->nb_streams * sizeof(*opts));
1806 av_log(NULL, AV_LOG_ERROR,
1807 "Could not alloc memory for stream options.\n");
1810 for (i = 0; i < s->nb_streams; i++)
1811 opts[i] = filter_codec_opts(codec_opts, s->streams[i]->codec->codec_id,
1812 s, s->streams[i], NULL);
1816 void *grow_array(void *array, int elem_size, int *size, int new_size)
1818 if (new_size >= INT_MAX / elem_size) {
1819 av_log(NULL, AV_LOG_ERROR, "Array too big.\n");
1822 if (*size < new_size) {
1823 uint8_t *tmp = av_realloc(array, new_size*elem_size);
1825 av_log(NULL, AV_LOG_ERROR, "Could not alloc buffer.\n");
1828 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
1835 static int alloc_buffer(FrameBuffer **pool, AVCodecContext *s, FrameBuffer **pbuf)
1837 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt);
1841 int h_chroma_shift, v_chroma_shift;
1842 int edge = 32; // XXX should be avcodec_get_edge_width(), but that fails on svq1
1843 int w = s->width, h = s->height;
1846 return AVERROR(EINVAL);
1847 pixel_size = desc->comp[0].step_minus1 + 1;
1849 buf = av_mallocz(sizeof(*buf));
1851 return AVERROR(ENOMEM);
1853 avcodec_align_dimensions(s, &w, &h);
1855 if (!(s->flags & CODEC_FLAG_EMU_EDGE)) {
1860 if ((ret = av_image_alloc(buf->base, buf->linesize, w, h,
1861 s->pix_fmt, 32)) < 0) {
1863 av_log(s, AV_LOG_ERROR, "alloc_buffer: av_image_alloc() failed\n");
1867 avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
1868 for (i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) {
1869 const int h_shift = i==0 ? 0 : h_chroma_shift;
1870 const int v_shift = i==0 ? 0 : v_chroma_shift;
1871 if ((s->flags & CODEC_FLAG_EMU_EDGE) || !buf->linesize[i] || !buf->base[i])
1872 buf->data[i] = buf->base[i];
1874 buf->data[i] = buf->base[i] +
1875 FFALIGN((buf->linesize[i]*edge >> v_shift) +
1876 (pixel_size*edge >> h_shift), 32);
1880 buf->pix_fmt = s->pix_fmt;
1887 int codec_get_buffer(AVCodecContext *s, AVFrame *frame)
1889 FrameBuffer **pool = s->opaque;
1893 if(av_image_check_size(s->width, s->height, 0, s) || s->pix_fmt<0) {
1894 av_log(s, AV_LOG_ERROR, "codec_get_buffer: image parameters invalid\n");
1898 if (!*pool && (ret = alloc_buffer(pool, s, pool)) < 0)
1904 if (buf->w != s->width || buf->h != s->height || buf->pix_fmt != s->pix_fmt) {
1905 av_freep(&buf->base[0]);
1907 if ((ret = alloc_buffer(pool, s, &buf)) < 0)
1910 av_assert0(!buf->refcount);
1913 frame->opaque = buf;
1914 frame->type = FF_BUFFER_TYPE_USER;
1915 frame->extended_data = frame->data;
1917 for (i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) {
1918 frame->base[i] = buf->base[i]; // XXX h264.c uses base though it shouldn't
1919 frame->data[i] = buf->data[i];
1920 frame->linesize[i] = buf->linesize[i];
1926 static void unref_buffer(FrameBuffer *buf)
1928 FrameBuffer **pool = buf->pool;
1930 av_assert0(buf->refcount > 0);
1932 if (!buf->refcount) {
1934 for(tmp= *pool; tmp; tmp= tmp->next)
1935 av_assert1(tmp != buf);
1942 void codec_release_buffer(AVCodecContext *s, AVFrame *frame)
1944 FrameBuffer *buf = frame->opaque;
1947 if(frame->type!=FF_BUFFER_TYPE_USER) {
1948 avcodec_default_release_buffer(s, frame);
1952 for (i = 0; i < FF_ARRAY_ELEMS(frame->data); i++)
1953 frame->data[i] = NULL;
1958 void filter_release_buffer(AVFilterBuffer *fb)
1960 FrameBuffer *buf = fb->priv;
1965 void free_buffer_pool(FrameBuffer **pool)
1967 FrameBuffer *buf = *pool;
1970 av_freep(&buf->base[0]);