2 * Various utilities for command line tools
3 * Copyright (c) 2000-2003 Fabrice Bellard
5 * This file is part of Libav.
7 * Libav 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 * Libav 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 Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
27 /* Include only the enabled headers since some compilers (namely, Sun
28 Studio) will not omit unused inline functions and create undefined
29 references to libraries that are not being built. */
32 #include "libavformat/avformat.h"
33 #include "libavfilter/avfilter.h"
34 #include "libavdevice/avdevice.h"
35 #include "libavresample/avresample.h"
36 #include "libswscale/swscale.h"
37 #include "libavutil/avassert.h"
38 #include "libavutil/avstring.h"
39 #include "libavutil/mathematics.h"
40 #include "libavutil/imgutils.h"
41 #include "libavutil/parseutils.h"
42 #include "libavutil/pixdesc.h"
43 #include "libavutil/eval.h"
44 #include "libavutil/dict.h"
45 #include "libavutil/opt.h"
49 #include "libavformat/network.h"
51 #if HAVE_SYS_RESOURCE_H
52 #include <sys/resource.h>
55 struct SwsContext *sws_opts;
56 AVDictionary *format_opts, *codec_opts;
58 static const int this_year = 2012;
63 sws_opts = sws_getContext(16, 16, 0, 16, 16, 0, SWS_BICUBIC,
68 void uninit_opts(void)
71 sws_freeContext(sws_opts);
74 av_dict_free(&format_opts);
75 av_dict_free(&codec_opts);
78 void log_callback_help(void *ptr, int level, const char *fmt, va_list vl)
80 vfprintf(stdout, fmt, vl);
83 double parse_number_or_die(const char *context, const char *numstr, int type,
84 double min, double max)
88 double d = av_strtod(numstr, &tail);
90 error = "Expected number for %s but found: %s\n";
91 else if (d < min || d > max)
92 error = "The value for %s was %s which is not within %f - %f\n";
93 else if (type == OPT_INT64 && (int64_t)d != d)
94 error = "Expected int64 for %s but found %s\n";
95 else if (type == OPT_INT && (int)d != d)
96 error = "Expected int for %s but found %s\n";
99 av_log(NULL, AV_LOG_FATAL, error, context, numstr, min, max);
104 int64_t parse_time_or_die(const char *context, const char *timestr,
108 if (av_parse_time(&us, timestr, is_duration) < 0) {
109 av_log(NULL, AV_LOG_FATAL, "Invalid %s specification for %s: %s\n",
110 is_duration ? "duration" : "date", context, timestr);
116 void show_help_options(const OptionDef *options, const char *msg, int mask,
123 for (po = options; po->name != NULL; po++) {
125 if ((po->flags & mask) == value) {
130 av_strlcpy(buf, po->name, sizeof(buf));
131 if (po->flags & HAS_ARG) {
132 av_strlcat(buf, " ", sizeof(buf));
133 av_strlcat(buf, po->argname, sizeof(buf));
135 printf("-%-17s %s\n", buf, po->help);
141 void show_help_children(const AVClass *class, int flags)
143 const AVClass *child = NULL;
144 av_opt_show2(&class, NULL, flags, 0);
147 while (child = av_opt_child_class_next(class, child))
148 show_help_children(child, flags);
151 static const OptionDef *find_option(const OptionDef *po, const char *name)
153 const char *p = strchr(name, ':');
154 int len = p ? p - name : strlen(name);
156 while (po->name != NULL) {
157 if (!strncmp(name, po->name, len) && strlen(po->name) == len)
164 #if defined(_WIN32) && !defined(__MINGW32CE__)
166 #include <shellapi.h>
167 /* Will be leaked on exit */
168 static char** win32_argv_utf8 = NULL;
169 static int win32_argc = 0;
172 * Prepare command line arguments for executable.
173 * For Windows - perform wide-char to UTF-8 conversion.
174 * Input arguments should be main() function arguments.
175 * @param argc_ptr Arguments number (including executable)
176 * @param argv_ptr Arguments list.
178 static void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
182 int i, buffsize = 0, offset = 0;
184 if (win32_argv_utf8) {
185 *argc_ptr = win32_argc;
186 *argv_ptr = win32_argv_utf8;
191 argv_w = CommandLineToArgvW(GetCommandLineW(), &win32_argc);
192 if (win32_argc <= 0 || !argv_w)
195 /* determine the UTF-8 buffer size (including NULL-termination symbols) */
196 for (i = 0; i < win32_argc; i++)
197 buffsize += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
198 NULL, 0, NULL, NULL);
200 win32_argv_utf8 = av_mallocz(sizeof(char *) * (win32_argc + 1) + buffsize);
201 argstr_flat = (char *)win32_argv_utf8 + sizeof(char *) * (win32_argc + 1);
202 if (win32_argv_utf8 == NULL) {
207 for (i = 0; i < win32_argc; i++) {
208 win32_argv_utf8[i] = &argstr_flat[offset];
209 offset += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
210 &argstr_flat[offset],
211 buffsize - offset, NULL, NULL);
213 win32_argv_utf8[i] = NULL;
216 *argc_ptr = win32_argc;
217 *argv_ptr = win32_argv_utf8;
220 static inline void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
224 #endif /* WIN32 && !__MINGW32CE__ */
226 int parse_option(void *optctx, const char *opt, const char *arg,
227 const OptionDef *options)
234 po = find_option(options, opt);
235 if (!po->name && opt[0] == 'n' && opt[1] == 'o') {
236 /* handle 'no' bool option */
237 po = find_option(options, opt + 2);
238 if ((po->name && (po->flags & OPT_BOOL)))
242 po = find_option(options, "default");
244 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'\n", opt);
245 return AVERROR(EINVAL);
247 if (po->flags & HAS_ARG && !arg) {
248 av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'\n", opt);
249 return AVERROR(EINVAL);
252 /* new-style options contain an offset into optctx, old-style address of
254 dst = po->flags & (OPT_OFFSET | OPT_SPEC) ? (uint8_t *)optctx + po->u.off
257 if (po->flags & OPT_SPEC) {
258 SpecifierOpt **so = dst;
259 char *p = strchr(opt, ':');
261 dstcount = (int *)(so + 1);
262 *so = grow_array(*so, sizeof(**so), dstcount, *dstcount + 1);
263 (*so)[*dstcount - 1].specifier = av_strdup(p ? p + 1 : "");
264 dst = &(*so)[*dstcount - 1].u;
267 if (po->flags & OPT_STRING) {
269 str = av_strdup(arg);
271 } else if (po->flags & OPT_BOOL) {
272 *(int *)dst = bool_val;
273 } else if (po->flags & OPT_INT) {
274 *(int *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
275 } else if (po->flags & OPT_INT64) {
276 *(int64_t *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT64_MIN, INT64_MAX);
277 } else if (po->flags & OPT_TIME) {
278 *(int64_t *)dst = parse_time_or_die(opt, arg, 1);
279 } else if (po->flags & OPT_FLOAT) {
280 *(float *)dst = parse_number_or_die(opt, arg, OPT_FLOAT, -INFINITY, INFINITY);
281 } else if (po->flags & OPT_DOUBLE) {
282 *(double *)dst = parse_number_or_die(opt, arg, OPT_DOUBLE, -INFINITY, INFINITY);
283 } else if (po->u.func_arg) {
284 int ret = po->flags & OPT_FUNC2 ? po->u.func2_arg(optctx, opt, arg)
285 : po->u.func_arg(opt, arg);
287 av_log(NULL, AV_LOG_ERROR,
288 "Failed to set value '%s' for option '%s'\n", arg, opt);
292 if (po->flags & OPT_EXIT)
294 return !!(po->flags & HAS_ARG);
297 void parse_options(void *optctx, int argc, char **argv, const OptionDef *options,
298 void (*parse_arg_function)(void *, const char*))
301 int optindex, handleoptions = 1, ret;
303 /* perform system-dependent conversions for arguments list */
304 prepare_app_arguments(&argc, &argv);
308 while (optindex < argc) {
309 opt = argv[optindex++];
311 if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
312 if (opt[1] == '-' && opt[2] == '\0') {
318 if ((ret = parse_option(optctx, opt, argv[optindex], options)) < 0)
322 if (parse_arg_function)
323 parse_arg_function(optctx, opt);
328 int locate_option(int argc, char **argv, const OptionDef *options,
334 for (i = 1; i < argc; i++) {
335 const char *cur_opt = argv[i];
337 if (*cur_opt++ != '-')
340 po = find_option(options, cur_opt);
341 if (!po->name && cur_opt[0] == 'n' && cur_opt[1] == 'o')
342 po = find_option(options, cur_opt + 2);
344 if ((!po->name && !strcmp(cur_opt, optname)) ||
345 (po->name && !strcmp(optname, po->name)))
348 if (!po || po->flags & HAS_ARG)
354 void parse_loglevel(int argc, char **argv, const OptionDef *options)
356 int idx = locate_option(argc, argv, options, "loglevel");
358 idx = locate_option(argc, argv, options, "v");
359 if (idx && argv[idx + 1])
360 opt_loglevel("loglevel", argv[idx + 1]);
363 #define FLAGS (o->type == AV_OPT_TYPE_FLAGS) ? AV_DICT_APPEND : 0
364 int opt_default(const char *opt, const char *arg)
367 char opt_stripped[128];
369 const AVClass *cc = avcodec_get_class(), *fc = avformat_get_class(), *sc = sws_get_class();
371 if (!(p = strchr(opt, ':')))
372 p = opt + strlen(opt);
373 av_strlcpy(opt_stripped, opt, FFMIN(sizeof(opt_stripped), p - opt + 1));
375 if ((o = av_opt_find(&cc, opt_stripped, NULL, 0,
376 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) ||
377 ((opt[0] == 'v' || opt[0] == 'a' || opt[0] == 's') &&
378 (o = av_opt_find(&cc, opt + 1, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ))))
379 av_dict_set(&codec_opts, opt, arg, FLAGS);
380 else if ((o = av_opt_find(&fc, opt, NULL, 0,
381 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)))
382 av_dict_set(&format_opts, opt, arg, FLAGS);
383 else if ((o = av_opt_find(&sc, opt, NULL, 0,
384 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
385 // XXX we only support sws_flags, not arbitrary sws options
386 int ret = av_opt_set(sws_opts, opt, arg, 0);
388 av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
395 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'\n", opt);
396 return AVERROR_OPTION_NOT_FOUND;
399 int opt_loglevel(const char *opt, const char *arg)
401 const struct { const char *name; int level; } log_levels[] = {
402 { "quiet" , AV_LOG_QUIET },
403 { "panic" , AV_LOG_PANIC },
404 { "fatal" , AV_LOG_FATAL },
405 { "error" , AV_LOG_ERROR },
406 { "warning", AV_LOG_WARNING },
407 { "info" , AV_LOG_INFO },
408 { "verbose", AV_LOG_VERBOSE },
409 { "debug" , AV_LOG_DEBUG },
415 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) {
416 if (!strcmp(log_levels[i].name, arg)) {
417 av_log_set_level(log_levels[i].level);
422 level = strtol(arg, &tail, 10);
424 av_log(NULL, AV_LOG_FATAL, "Invalid loglevel \"%s\". "
425 "Possible levels are numbers or:\n", arg);
426 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++)
427 av_log(NULL, AV_LOG_FATAL, "\"%s\"\n", log_levels[i].name);
430 av_log_set_level(level);
434 int opt_timelimit(const char *opt, const char *arg)
437 int lim = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
438 struct rlimit rl = { lim, lim + 1 };
439 if (setrlimit(RLIMIT_CPU, &rl))
442 av_log(NULL, AV_LOG_WARNING, "-%s not implemented on this OS\n", opt);
447 void print_error(const char *filename, int err)
450 const char *errbuf_ptr = errbuf;
452 if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
453 errbuf_ptr = strerror(AVUNERROR(err));
454 av_log(NULL, AV_LOG_ERROR, "%s: %s\n", filename, errbuf_ptr);
457 static int warned_cfg = 0;
460 #define SHOW_VERSION 2
461 #define SHOW_CONFIG 4
463 #define PRINT_LIB_INFO(libname, LIBNAME, flags, level) \
464 if (CONFIG_##LIBNAME) { \
465 const char *indent = flags & INDENT? " " : ""; \
466 if (flags & SHOW_VERSION) { \
467 unsigned int version = libname##_version(); \
468 av_log(NULL, level, \
469 "%slib%-10s %2d.%3d.%2d / %2d.%3d.%2d\n", \
471 LIB##LIBNAME##_VERSION_MAJOR, \
472 LIB##LIBNAME##_VERSION_MINOR, \
473 LIB##LIBNAME##_VERSION_MICRO, \
474 version >> 16, version >> 8 & 0xff, version & 0xff); \
476 if (flags & SHOW_CONFIG) { \
477 const char *cfg = libname##_configuration(); \
478 if (strcmp(LIBAV_CONFIGURATION, cfg)) { \
480 av_log(NULL, level, \
481 "%sWARNING: library configuration mismatch\n", \
485 av_log(NULL, level, "%s%-11s configuration: %s\n", \
486 indent, #libname, cfg); \
491 static void print_all_libs_info(int flags, int level)
493 PRINT_LIB_INFO(avutil, AVUTIL, flags, level);
494 PRINT_LIB_INFO(avcodec, AVCODEC, flags, level);
495 PRINT_LIB_INFO(avformat, AVFORMAT, flags, level);
496 PRINT_LIB_INFO(avdevice, AVDEVICE, flags, level);
497 PRINT_LIB_INFO(avfilter, AVFILTER, flags, level);
498 PRINT_LIB_INFO(avresample, AVRESAMPLE, flags, level);
499 PRINT_LIB_INFO(swscale, SWSCALE, flags, level);
502 void show_banner(void)
504 av_log(NULL, AV_LOG_INFO,
505 "%s version " LIBAV_VERSION ", Copyright (c) %d-%d the Libav developers\n",
506 program_name, program_birth_year, this_year);
507 av_log(NULL, AV_LOG_INFO, " built on %s %s with %s\n",
508 __DATE__, __TIME__, CC_IDENT);
509 av_log(NULL, AV_LOG_VERBOSE, " configuration: " LIBAV_CONFIGURATION "\n");
510 print_all_libs_info(INDENT|SHOW_CONFIG, AV_LOG_VERBOSE);
511 print_all_libs_info(INDENT|SHOW_VERSION, AV_LOG_VERBOSE);
514 int show_version(const char *opt, const char *arg)
516 av_log_set_callback(log_callback_help);
517 printf("%s " LIBAV_VERSION "\n", program_name);
518 print_all_libs_info(SHOW_VERSION, AV_LOG_INFO);
523 int show_license(const char *opt, const char *arg)
527 "This version of %s has nonfree parts compiled in.\n"
528 "Therefore it is not legally redistributable.\n",
531 "%s is free software; you can redistribute it and/or modify\n"
532 "it under the terms of the GNU General Public License as published by\n"
533 "the Free Software Foundation; either version 3 of the License, or\n"
534 "(at your option) any later version.\n"
536 "%s is distributed in the hope that it will be useful,\n"
537 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
538 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
539 "GNU General Public License for more details.\n"
541 "You should have received a copy of the GNU General Public License\n"
542 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
543 program_name, program_name, program_name
545 "%s is free software; you can redistribute it and/or modify\n"
546 "it under the terms of the GNU General Public License as published by\n"
547 "the Free Software Foundation; either version 2 of the License, or\n"
548 "(at your option) any later version.\n"
550 "%s is distributed in the hope that it will be useful,\n"
551 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
552 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
553 "GNU General Public License for more details.\n"
555 "You should have received a copy of the GNU General Public License\n"
556 "along with %s; if not, write to the Free Software\n"
557 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
558 program_name, program_name, program_name
560 "%s is free software; you can redistribute it and/or modify\n"
561 "it under the terms of the GNU Lesser General Public License as published by\n"
562 "the Free Software Foundation; either version 3 of the License, or\n"
563 "(at your option) any later version.\n"
565 "%s is distributed in the hope that it will be useful,\n"
566 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
567 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
568 "GNU Lesser General Public License for more details.\n"
570 "You should have received a copy of the GNU Lesser General Public License\n"
571 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
572 program_name, program_name, program_name
574 "%s is free software; you can redistribute it and/or\n"
575 "modify it under the terms of the GNU Lesser General Public\n"
576 "License as published by the Free Software Foundation; either\n"
577 "version 2.1 of the License, or (at your option) any later version.\n"
579 "%s is distributed in the hope that it will be useful,\n"
580 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
581 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
582 "Lesser General Public License for more details.\n"
584 "You should have received a copy of the GNU Lesser General Public\n"
585 "License along with %s; if not, write to the Free Software\n"
586 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
587 program_name, program_name, program_name
594 int show_formats(const char *opt, const char *arg)
596 AVInputFormat *ifmt = NULL;
597 AVOutputFormat *ofmt = NULL;
598 const char *last_name;
600 printf("File formats:\n"
601 " D. = Demuxing supported\n"
602 " .E = Muxing supported\n"
608 const char *name = NULL;
609 const char *long_name = NULL;
611 while ((ofmt = av_oformat_next(ofmt))) {
612 if ((name == NULL || strcmp(ofmt->name, name) < 0) &&
613 strcmp(ofmt->name, last_name) > 0) {
615 long_name = ofmt->long_name;
619 while ((ifmt = av_iformat_next(ifmt))) {
620 if ((name == NULL || strcmp(ifmt->name, name) < 0) &&
621 strcmp(ifmt->name, last_name) > 0) {
623 long_name = ifmt->long_name;
626 if (name && strcmp(ifmt->name, name) == 0)
633 printf(" %s%s %-15s %s\n",
637 long_name ? long_name:" ");
642 static char get_media_type_char(enum AVMediaType type)
645 case AVMEDIA_TYPE_VIDEO: return 'V';
646 case AVMEDIA_TYPE_AUDIO: return 'A';
647 case AVMEDIA_TYPE_SUBTITLE: return 'S';
652 static const AVCodec *next_codec_for_id(enum AVCodecID id, const AVCodec *prev,
655 while ((prev = av_codec_next(prev))) {
656 if (prev->id == id &&
657 (encoder ? av_codec_is_encoder(prev) : av_codec_is_decoder(prev)))
663 static void print_codecs_for_id(enum AVCodecID id, int encoder)
665 const AVCodec *codec = NULL;
667 printf(" (%s: ", encoder ? "encoders" : "decoders");
669 while ((codec = next_codec_for_id(id, codec, encoder)))
670 printf("%s ", codec->name);
675 int show_codecs(const char *opt, const char *arg)
677 const AVCodecDescriptor *desc = NULL;
680 " D... = Decoding supported\n"
681 " .E.. = Encoding supported\n"
682 " ..V. = Video codec\n"
683 " ..A. = Audio codec\n"
684 " ..S. = Subtitle codec\n"
685 " ...I = Intra frame-only codec\n"
687 while ((desc = avcodec_descriptor_next(desc))) {
688 const AVCodec *codec = NULL;
690 printf(avcodec_find_decoder(desc->id) ? "D" : ".");
691 printf(avcodec_find_encoder(desc->id) ? "E" : ".");
693 printf("%c", get_media_type_char(desc->type));
694 printf((desc->props & AV_CODEC_PROP_INTRA_ONLY) ? "I" : ".");
696 printf(" %-20s %s", desc->name, desc->long_name ? desc->long_name : "");
698 /* print decoders/encoders when there's more than one or their
699 * names are different from codec name */
700 while ((codec = next_codec_for_id(desc->id, codec, 0))) {
701 if (strcmp(codec->name, desc->name)) {
702 print_codecs_for_id(desc->id, 0);
707 while ((codec = next_codec_for_id(desc->id, codec, 1))) {
708 if (strcmp(codec->name, desc->name)) {
709 print_codecs_for_id(desc->id, 1);
719 static void print_codecs(int encoder)
721 const AVCodecDescriptor *desc = NULL;
727 " .F.. = Frame-level multithreading\n"
728 " ..S. = Slice-level multithreading\n"
729 " ...X = Codec is experimental\n"
731 encoder ? "Encoders" : "Decoders");
732 while ((desc = avcodec_descriptor_next(desc))) {
733 const AVCodec *codec = NULL;
735 while ((codec = next_codec_for_id(desc->id, codec, encoder))) {
736 printf("%c", get_media_type_char(desc->type));
737 printf((codec->capabilities & CODEC_CAP_FRAME_THREADS) ? "F" : ".");
738 printf((codec->capabilities & CODEC_CAP_SLICE_THREADS) ? "S" : ".");
739 printf((codec->capabilities & CODEC_CAP_EXPERIMENTAL) ? "X" : ".");
741 printf(" %-20s %s", codec->name, codec->long_name ? codec->long_name : "");
742 if (strcmp(codec->name, desc->name))
743 printf(" (codec %s)", desc->name);
750 int show_decoders(const char *opt, const char *arg)
756 int show_encoders(const char *opt, const char *arg)
762 int show_bsfs(const char *opt, const char *arg)
764 AVBitStreamFilter *bsf = NULL;
766 printf("Bitstream filters:\n");
767 while ((bsf = av_bitstream_filter_next(bsf)))
768 printf("%s\n", bsf->name);
773 int show_protocols(const char *opt, const char *arg)
778 printf("Supported file protocols:\n"
780 while ((name = avio_enum_protocols(&opaque, 0)))
781 printf("%s\n", name);
783 while ((name = avio_enum_protocols(&opaque, 1)))
784 printf("%s\n", name);
788 int show_filters(const char *opt, const char *arg)
790 AVFilter av_unused(**filter) = NULL;
792 printf("Filters:\n");
794 while ((filter = av_filter_next(filter)) && *filter)
795 printf("%-16s %s\n", (*filter)->name, (*filter)->description);
800 int show_pix_fmts(const char *opt, const char *arg)
802 enum PixelFormat pix_fmt;
804 printf("Pixel formats:\n"
805 "I.... = Supported Input format for conversion\n"
806 ".O... = Supported Output format for conversion\n"
807 "..H.. = Hardware accelerated format\n"
808 "...P. = Paletted format\n"
809 "....B = Bitstream format\n"
810 "FLAGS NAME NB_COMPONENTS BITS_PER_PIXEL\n"
814 # define sws_isSupportedInput(x) 0
815 # define sws_isSupportedOutput(x) 0
818 for (pix_fmt = 0; pix_fmt < PIX_FMT_NB; pix_fmt++) {
819 const AVPixFmtDescriptor *pix_desc = &av_pix_fmt_descriptors[pix_fmt];
820 printf("%c%c%c%c%c %-16s %d %2d\n",
821 sws_isSupportedInput (pix_fmt) ? 'I' : '.',
822 sws_isSupportedOutput(pix_fmt) ? 'O' : '.',
823 pix_desc->flags & PIX_FMT_HWACCEL ? 'H' : '.',
824 pix_desc->flags & PIX_FMT_PAL ? 'P' : '.',
825 pix_desc->flags & PIX_FMT_BITSTREAM ? 'B' : '.',
827 pix_desc->nb_components,
828 av_get_bits_per_pixel(pix_desc));
833 int show_sample_fmts(const char *opt, const char *arg)
837 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
838 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
845 int yesno = (toupper(c) == 'Y');
847 while (c != '\n' && c != EOF)
853 int cmdutils_read_file(const char *filename, char **bufptr, size_t *size)
856 FILE *f = fopen(filename, "rb");
859 av_log(NULL, AV_LOG_ERROR, "Cannot read file '%s': %s\n", filename,
861 return AVERROR(errno);
863 fseek(f, 0, SEEK_END);
865 fseek(f, 0, SEEK_SET);
866 *bufptr = av_malloc(*size + 1);
868 av_log(NULL, AV_LOG_ERROR, "Could not allocate file buffer\n");
870 return AVERROR(ENOMEM);
872 ret = fread(*bufptr, 1, *size, f);
876 av_log(NULL, AV_LOG_ERROR, "Error while reading file '%s': %s\n",
877 filename, strerror(errno));
878 ret = AVERROR(errno);
883 (*bufptr)[*size++] = '\0';
890 void init_pts_correction(PtsCorrectionContext *ctx)
892 ctx->num_faulty_pts = ctx->num_faulty_dts = 0;
893 ctx->last_pts = ctx->last_dts = INT64_MIN;
896 int64_t guess_correct_pts(PtsCorrectionContext *ctx, int64_t reordered_pts,
899 int64_t pts = AV_NOPTS_VALUE;
901 if (dts != AV_NOPTS_VALUE) {
902 ctx->num_faulty_dts += dts <= ctx->last_dts;
905 if (reordered_pts != AV_NOPTS_VALUE) {
906 ctx->num_faulty_pts += reordered_pts <= ctx->last_pts;
907 ctx->last_pts = reordered_pts;
909 if ((ctx->num_faulty_pts<=ctx->num_faulty_dts || dts == AV_NOPTS_VALUE)
910 && reordered_pts != AV_NOPTS_VALUE)
918 FILE *get_preset_file(char *filename, size_t filename_size,
919 const char *preset_name, int is_path,
920 const char *codec_name)
924 const char *base[3] = { getenv("AVCONV_DATADIR"),
929 av_strlcpy(filename, preset_name, filename_size);
930 f = fopen(filename, "r");
932 for (i = 0; i < 3 && !f; i++) {
935 snprintf(filename, filename_size, "%s%s/%s.avpreset", base[i],
936 i != 1 ? "" : "/.avconv", preset_name);
937 f = fopen(filename, "r");
938 if (!f && codec_name) {
939 snprintf(filename, filename_size,
940 "%s%s/%s-%s.avpreset",
941 base[i], i != 1 ? "" : "/.avconv", codec_name,
943 f = fopen(filename, "r");
951 int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec)
953 if (*spec <= '9' && *spec >= '0') /* opt:index */
954 return strtol(spec, NULL, 0) == st->index;
955 else if (*spec == 'v' || *spec == 'a' || *spec == 's' || *spec == 'd' ||
956 *spec == 't') { /* opt:[vasdt] */
957 enum AVMediaType type;
960 case 'v': type = AVMEDIA_TYPE_VIDEO; break;
961 case 'a': type = AVMEDIA_TYPE_AUDIO; break;
962 case 's': type = AVMEDIA_TYPE_SUBTITLE; break;
963 case 'd': type = AVMEDIA_TYPE_DATA; break;
964 case 't': type = AVMEDIA_TYPE_ATTACHMENT; break;
965 default: av_assert0(0);
967 if (type != st->codec->codec_type)
969 if (*spec++ == ':') { /* possibly followed by :index */
970 int i, index = strtol(spec, NULL, 0);
971 for (i = 0; i < s->nb_streams; i++)
972 if (s->streams[i]->codec->codec_type == type && index-- == 0)
973 return i == st->index;
977 } else if (*spec == 'p' && *(spec + 1) == ':') {
981 prog_id = strtol(spec, &endptr, 0);
982 for (i = 0; i < s->nb_programs; i++) {
983 if (s->programs[i]->id != prog_id)
986 if (*endptr++ == ':') {
987 int stream_idx = strtol(endptr, NULL, 0);
988 return stream_idx >= 0 &&
989 stream_idx < s->programs[i]->nb_stream_indexes &&
990 st->index == s->programs[i]->stream_index[stream_idx];
993 for (j = 0; j < s->programs[i]->nb_stream_indexes; j++)
994 if (st->index == s->programs[i]->stream_index[j])
998 } else if (!*spec) /* empty specifier, matches everything */
1001 av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec);
1002 return AVERROR(EINVAL);
1005 AVDictionary *filter_codec_opts(AVDictionary *opts, enum AVCodecID codec_id,
1006 AVFormatContext *s, AVStream *st, AVCodec *codec)
1008 AVDictionary *ret = NULL;
1009 AVDictionaryEntry *t = NULL;
1010 int flags = s->oformat ? AV_OPT_FLAG_ENCODING_PARAM
1011 : AV_OPT_FLAG_DECODING_PARAM;
1013 const AVClass *cc = avcodec_get_class();
1016 codec = s->oformat ? avcodec_find_encoder(codec_id)
1017 : avcodec_find_decoder(codec_id);
1021 switch (codec->type) {
1022 case AVMEDIA_TYPE_VIDEO:
1024 flags |= AV_OPT_FLAG_VIDEO_PARAM;
1026 case AVMEDIA_TYPE_AUDIO:
1028 flags |= AV_OPT_FLAG_AUDIO_PARAM;
1030 case AVMEDIA_TYPE_SUBTITLE:
1032 flags |= AV_OPT_FLAG_SUBTITLE_PARAM;
1036 while (t = av_dict_get(opts, "", t, AV_DICT_IGNORE_SUFFIX)) {
1037 char *p = strchr(t->key, ':');
1039 /* check stream specification in opt name */
1041 switch (check_stream_specifier(s, st, p + 1)) {
1042 case 1: *p = 0; break;
1044 default: return NULL;
1047 if (av_opt_find(&cc, t->key, NULL, flags, AV_OPT_SEARCH_FAKE_OBJ) ||
1048 (codec && codec->priv_class &&
1049 av_opt_find(&codec->priv_class, t->key, NULL, flags,
1050 AV_OPT_SEARCH_FAKE_OBJ)))
1051 av_dict_set(&ret, t->key, t->value, 0);
1052 else if (t->key[0] == prefix &&
1053 av_opt_find(&cc, t->key + 1, NULL, flags,
1054 AV_OPT_SEARCH_FAKE_OBJ))
1055 av_dict_set(&ret, t->key + 1, t->value, 0);
1063 AVDictionary **setup_find_stream_info_opts(AVFormatContext *s,
1064 AVDictionary *codec_opts)
1067 AVDictionary **opts;
1071 opts = av_mallocz(s->nb_streams * sizeof(*opts));
1073 av_log(NULL, AV_LOG_ERROR,
1074 "Could not alloc memory for stream options.\n");
1077 for (i = 0; i < s->nb_streams; i++)
1078 opts[i] = filter_codec_opts(codec_opts, s->streams[i]->codec->codec_id,
1079 s, s->streams[i], NULL);
1083 void *grow_array(void *array, int elem_size, int *size, int new_size)
1085 if (new_size >= INT_MAX / elem_size) {
1086 av_log(NULL, AV_LOG_ERROR, "Array too big.\n");
1089 if (*size < new_size) {
1090 uint8_t *tmp = av_realloc(array, new_size*elem_size);
1092 av_log(NULL, AV_LOG_ERROR, "Could not alloc buffer.\n");
1095 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
1102 static int alloc_buffer(FrameBuffer **pool, AVCodecContext *s, FrameBuffer **pbuf)
1104 FrameBuffer *buf = av_mallocz(sizeof(*buf));
1106 const int pixel_size = av_pix_fmt_descriptors[s->pix_fmt].comp[0].step_minus1+1;
1107 int h_chroma_shift, v_chroma_shift;
1108 int edge = 32; // XXX should be avcodec_get_edge_width(), but that fails on svq1
1109 int w = s->width, h = s->height;
1112 return AVERROR(ENOMEM);
1114 if (!(s->flags & CODEC_FLAG_EMU_EDGE)) {
1119 avcodec_align_dimensions(s, &w, &h);
1120 if ((ret = av_image_alloc(buf->base, buf->linesize, w, h,
1121 s->pix_fmt, 32)) < 0) {
1125 /* XXX this shouldn't be needed, but some tests break without this line
1126 * those decoders are buggy and need to be fixed.
1127 * the following tests fail:
1128 * cdgraphics, ansi, aasc, fraps-v1, qtrle-1bit
1130 memset(buf->base[0], 128, ret);
1132 avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
1133 for (i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) {
1134 const int h_shift = i==0 ? 0 : h_chroma_shift;
1135 const int v_shift = i==0 ? 0 : v_chroma_shift;
1136 if (s->flags & CODEC_FLAG_EMU_EDGE)
1137 buf->data[i] = buf->base[i];
1139 buf->data[i] = buf->base[i] +
1140 FFALIGN((buf->linesize[i]*edge >> v_shift) +
1141 (pixel_size*edge >> h_shift), 32);
1145 buf->pix_fmt = s->pix_fmt;
1152 int codec_get_buffer(AVCodecContext *s, AVFrame *frame)
1154 FrameBuffer **pool = s->opaque;
1158 if (!*pool && (ret = alloc_buffer(pool, s, pool)) < 0)
1164 if (buf->w != s->width || buf->h != s->height || buf->pix_fmt != s->pix_fmt) {
1165 av_freep(&buf->base[0]);
1167 if ((ret = alloc_buffer(pool, s, &buf)) < 0)
1172 frame->opaque = buf;
1173 frame->type = FF_BUFFER_TYPE_USER;
1174 frame->extended_data = frame->data;
1175 frame->pkt_pts = s->pkt ? s->pkt->pts : AV_NOPTS_VALUE;
1176 frame->width = buf->w;
1177 frame->height = buf->h;
1178 frame->format = buf->pix_fmt;
1179 frame->sample_aspect_ratio = s->sample_aspect_ratio;
1181 for (i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) {
1182 frame->base[i] = buf->base[i]; // XXX h264.c uses base though it shouldn't
1183 frame->data[i] = buf->data[i];
1184 frame->linesize[i] = buf->linesize[i];
1190 static void unref_buffer(FrameBuffer *buf)
1192 FrameBuffer **pool = buf->pool;
1194 av_assert0(buf->refcount);
1196 if (!buf->refcount) {
1202 void codec_release_buffer(AVCodecContext *s, AVFrame *frame)
1204 FrameBuffer *buf = frame->opaque;
1207 for (i = 0; i < FF_ARRAY_ELEMS(frame->data); i++)
1208 frame->data[i] = NULL;
1213 void filter_release_buffer(AVFilterBuffer *fb)
1215 FrameBuffer *buf = fb->priv;
1220 void free_buffer_pool(FrameBuffer **pool)
1222 FrameBuffer *buf = *pool;
1225 av_freep(&buf->base[0]);