2 * ffprobe : Simple Media Prober based on the FFmpeg libraries
3 * Copyright (c) 2007-2010 Stefano Sabatini
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
24 #include "libavformat/avformat.h"
25 #include "libavcodec/avcodec.h"
26 #include "libavutil/avstring.h"
27 #include "libavutil/opt.h"
28 #include "libavutil/pixdesc.h"
29 #include "libavutil/dict.h"
30 #include "libavdevice/avdevice.h"
33 const char program_name[] = "ffprobe";
34 const int program_birth_year = 2007;
36 static int do_show_format = 0;
37 static int do_show_packets = 0;
38 static int do_show_streams = 0;
40 static int show_value_unit = 0;
41 static int use_value_prefix = 0;
42 static int use_byte_value_binary_prefix = 0;
43 static int use_value_sexagesimal_format = 0;
45 static char *print_format;
47 static const OptionDef options[];
50 static const char *input_filename;
51 static AVInputFormat *iformat = NULL;
53 static const char *binary_unit_prefixes [] = { "", "Ki", "Mi", "Gi", "Ti", "Pi" };
54 static const char *decimal_unit_prefixes[] = { "", "K" , "M" , "G" , "T" , "P" };
56 static const char *unit_second_str = "s" ;
57 static const char *unit_hertz_str = "Hz" ;
58 static const char *unit_byte_str = "byte" ;
59 static const char *unit_bit_per_second_str = "bit/s";
61 void exit_program(int ret)
66 static char *value_string(char *buf, int buf_size, double val, const char *unit)
68 if (unit == unit_second_str && use_value_sexagesimal_format) {
72 mins = (int)secs / 60;
73 secs = secs - mins * 60;
76 snprintf(buf, buf_size, "%d:%02d:%09.6f", hours, mins, secs);
77 } else if (use_value_prefix) {
78 const char *prefix_string;
81 if (unit == unit_byte_str && use_byte_value_binary_prefix) {
82 index = (int) (log(val)/log(2)) / 10;
83 index = av_clip(index, 0, FF_ARRAY_ELEMS(binary_unit_prefixes) -1);
84 val /= pow(2, index*10);
85 prefix_string = binary_unit_prefixes[index];
87 index = (int) (log10(val)) / 3;
88 index = av_clip(index, 0, FF_ARRAY_ELEMS(decimal_unit_prefixes) -1);
89 val /= pow(10, index*3);
90 prefix_string = decimal_unit_prefixes[index];
93 snprintf(buf, buf_size, "%.3f%s%s%s", val, prefix_string || show_value_unit ? " " : "",
94 prefix_string, show_value_unit ? unit : "");
96 snprintf(buf, buf_size, "%f%s%s", val, show_value_unit ? " " : "",
97 show_value_unit ? unit : "");
103 static char *time_value_string(char *buf, int buf_size, int64_t val, const AVRational *time_base)
105 if (val == AV_NOPTS_VALUE) {
106 snprintf(buf, buf_size, "N/A");
108 value_string(buf, buf_size, val * av_q2d(*time_base), unit_second_str);
114 static char *ts_value_string (char *buf, int buf_size, int64_t ts)
116 if (ts == AV_NOPTS_VALUE) {
117 snprintf(buf, buf_size, "N/A");
119 snprintf(buf, buf_size, "%"PRId64, ts);
127 typedef struct WriterContext WriterContext;
129 typedef struct Writer {
130 int priv_size; ///< private size for the writer context
133 int (*init) (WriterContext *wctx, const char *args, void *opaque);
134 void (*uninit)(WriterContext *wctx);
136 void (*print_header)(WriterContext *ctx);
137 void (*print_footer)(WriterContext *ctx);
139 void (*print_chapter_header)(WriterContext *wctx, const char *);
140 void (*print_chapter_footer)(WriterContext *wctx, const char *);
141 void (*print_section_header)(WriterContext *wctx, const char *);
142 void (*print_section_footer)(WriterContext *wctx, const char *);
143 void (*print_integer) (WriterContext *wctx, const char *, int);
144 void (*print_string) (WriterContext *wctx, const char *, const char *);
145 void (*show_tags) (WriterContext *wctx, AVDictionary *dict);
148 struct WriterContext {
149 const AVClass *class; ///< class of the writer
150 const Writer *writer; ///< the Writer of which this is an instance
151 char *name; ///< name of this writer instance
152 void *priv; ///< private data for use by the filter
153 unsigned int nb_item; ///< number of the item printed in the given section, starting at 0
154 unsigned int nb_section; ///< number of the section printed in the given section sequence, starting at 0
155 unsigned int nb_chapter; ///< number of the chapter, starting at 0
158 static const char *writer_get_name(void *p)
160 WriterContext *wctx = p;
161 return wctx->writer->name;
164 static const AVClass writer_class = {
168 LIBAVUTIL_VERSION_INT,
171 static void writer_close(WriterContext **wctx)
173 if (*wctx && (*wctx)->writer->uninit)
174 (*wctx)->writer->uninit(*wctx);
176 av_freep(&((*wctx)->priv));
180 static int writer_open(WriterContext **wctx, const Writer *writer,
181 const char *args, void *opaque)
185 if (!(*wctx = av_malloc(sizeof(WriterContext)))) {
186 ret = AVERROR(ENOMEM);
190 if (!((*wctx)->priv = av_mallocz(writer->priv_size))) {
191 ret = AVERROR(ENOMEM);
195 (*wctx)->class = &writer_class;
196 (*wctx)->writer = writer;
197 if ((*wctx)->writer->init)
198 ret = (*wctx)->writer->init(*wctx, args, opaque);
209 static inline void writer_print_header(WriterContext *wctx)
211 if (wctx->writer->print_header)
212 wctx->writer->print_header(wctx);
213 wctx->nb_chapter = 0;
216 static inline void writer_print_footer(WriterContext *wctx)
218 if (wctx->writer->print_footer)
219 wctx->writer->print_footer(wctx);
222 static inline void writer_print_chapter_header(WriterContext *wctx,
225 if (wctx->writer->print_chapter_header)
226 wctx->writer->print_chapter_header(wctx, header);
227 wctx->nb_section = 0;
230 static inline void writer_print_chapter_footer(WriterContext *wctx,
233 if (wctx->writer->print_chapter_footer)
234 wctx->writer->print_chapter_footer(wctx, footer);
238 static inline void writer_print_section_header(WriterContext *wctx,
241 if (wctx->writer->print_section_header)
242 wctx->writer->print_section_header(wctx, header);
246 static inline void writer_print_section_footer(WriterContext *wctx,
249 if (wctx->writer->print_section_footer)
250 wctx->writer->print_section_footer(wctx, footer);
254 static inline void writer_print_integer(WriterContext *wctx,
255 const char *key, int val)
257 wctx->writer->print_integer(wctx, key, val);
261 static inline void writer_print_string(WriterContext *wctx,
262 const char *key, const char *val)
264 wctx->writer->print_string(wctx, key, val);
268 static inline void writer_show_tags(WriterContext *wctx, AVDictionary *dict)
270 wctx->writer->show_tags(wctx, dict);
273 #define MAX_REGISTERED_WRITERS_NB 64
275 static Writer *registered_writers[MAX_REGISTERED_WRITERS_NB + 1];
277 static int writer_register(Writer *writer)
279 static int next_registered_writer_idx = 0;
281 if (next_registered_writer_idx == MAX_REGISTERED_WRITERS_NB)
282 return AVERROR(ENOMEM);
284 registered_writers[next_registered_writer_idx++] = writer;
288 static Writer *writer_get_by_name(const char *name)
292 for (i = 0; registered_writers[i]; i++)
293 if (!strcmp(registered_writers[i]->name, name))
294 return registered_writers[i];
306 static char *fast_asprintf(struct print_buf *pbuf, const char *fmt, ...)
312 len = vsnprintf(NULL, 0, fmt, va);
317 if (pbuf->len < len) {
318 char *p = av_realloc(pbuf->s, len + 1);
326 len = vsnprintf(pbuf->s, len + 1, fmt, va);
338 #define ESCAPE_INIT_BUF_SIZE 256
340 #define ESCAPE_CHECK_SIZE(src, size, max_size) \
341 if (size > max_size) { \
343 snprintf(buf, sizeof(buf), "%s", src); \
344 av_log(log_ctx, AV_LOG_WARNING, \
345 "String '%s...' with is too big\n", buf); \
346 return "FFPROBE_TOO_BIG_STRING"; \
349 #define ESCAPE_REALLOC_BUF(dst_size_p, dst_p, src, size) \
350 if (*dst_size_p < size) { \
351 char *q = av_realloc(*dst_p, size); \
354 snprintf(buf, sizeof(buf), "%s", src); \
355 av_log(log_ctx, AV_LOG_WARNING, \
356 "String '%s...' could not be escaped\n", buf); \
357 return "FFPROBE_THIS_STRING_COULD_NOT_BE_ESCAPED"; \
359 *dst_size_p = size; \
367 static void default_print_footer(WriterContext *wctx)
372 static void default_print_chapter_header(WriterContext *wctx, const char *chapter)
374 if (wctx->nb_chapter)
378 /* lame uppercasing routine, assumes the string is lower case ASCII */
379 static inline char *upcase_string(char *dst, size_t dst_size, const char *src)
382 for (i = 0; src[i] && i < dst_size-1; i++)
388 static void default_print_section_header(WriterContext *wctx, const char *section)
392 if (wctx->nb_section)
394 printf("[%s]\n", upcase_string(buf, sizeof(buf), section));
397 static void default_print_section_footer(WriterContext *wctx, const char *section)
401 printf("[/%s]", upcase_string(buf, sizeof(buf), section));
404 static void default_print_str(WriterContext *wctx, const char *key, const char *value)
406 printf("%s=%s\n", key, value);
409 static void default_print_int(WriterContext *wctx, const char *key, int value)
411 printf("%s=%d\n", key, value);
414 static void default_show_tags(WriterContext *wctx, AVDictionary *dict)
416 AVDictionaryEntry *tag = NULL;
417 while ((tag = av_dict_get(dict, "", tag, AV_DICT_IGNORE_SUFFIX))) {
419 writer_print_string(wctx, tag->key, tag->value);
423 static Writer default_writer = {
425 .print_footer = default_print_footer,
426 .print_chapter_header = default_print_chapter_header,
427 .print_section_header = default_print_section_header,
428 .print_section_footer = default_print_section_footer,
429 .print_integer = default_print_int,
430 .print_string = default_print_str,
431 .show_tags = default_show_tags
437 int multiple_entries; ///< tells if the given chapter requires multiple entries
442 static av_cold int json_init(WriterContext *wctx, const char *args, void *opaque)
444 JSONContext *json = wctx->priv;
446 json->buf_size = ESCAPE_INIT_BUF_SIZE;
447 if (!(json->buf = av_malloc(json->buf_size)))
448 return AVERROR(ENOMEM);
453 static av_cold void json_uninit(WriterContext *wctx)
455 JSONContext *json = wctx->priv;
456 av_freep(&json->buf);
459 static const char *json_escape_str(char **dst, size_t *dst_size, const char *src,
462 static const char json_escape[] = {'"', '\\', '\b', '\f', '\n', '\r', '\t', 0};
463 static const char json_subst[] = {'"', '\\', 'b', 'f', 'n', 'r', 't', 0};
468 // compute the length of the escaped string
469 for (p = src; *p; p++) {
470 ESCAPE_CHECK_SIZE(src, size, SIZE_MAX-6);
471 if (strchr(json_escape, *p)) size += 2; // simple escape
472 else if ((unsigned char)*p < 32) size += 6; // handle non-printable chars
473 else size += 1; // char copy
475 ESCAPE_REALLOC_BUF(dst_size, dst, src, size);
478 for (p = src; *p; p++) {
479 char *s = strchr(json_escape, *p);
482 *q++ = json_subst[s - json_escape];
483 } else if ((unsigned char)*p < 32) {
484 snprintf(q, 7, "\\u00%02x", *p & 0xff);
494 static void json_print_header(WriterContext *wctx)
499 static void json_print_footer(WriterContext *wctx)
504 static void json_print_chapter_header(WriterContext *wctx, const char *chapter)
506 JSONContext *json = wctx->priv;
508 if (wctx->nb_chapter)
510 json->multiple_entries = !strcmp(chapter, "packets") || !strcmp(chapter, "streams");
511 printf("\n \"%s\":%s", json_escape_str(&json->buf, &json->buf_size, chapter, wctx),
512 json->multiple_entries ? " [" : " ");
515 static void json_print_chapter_footer(WriterContext *wctx, const char *chapter)
517 JSONContext *json = wctx->priv;
519 if (json->multiple_entries)
523 static void json_print_section_header(WriterContext *wctx, const char *section)
525 if (wctx->nb_section) printf(",");
529 static void json_print_section_footer(WriterContext *wctx, const char *section)
534 static inline void json_print_item_str(WriterContext *wctx,
535 const char *key, const char *value,
538 JSONContext *json = wctx->priv;
540 printf("%s\"%s\":", indent, json_escape_str(&json->buf, &json->buf_size, key, wctx));
541 printf(" \"%s\"", json_escape_str(&json->buf, &json->buf_size, value, wctx));
546 static void json_print_str(WriterContext *wctx, const char *key, const char *value)
548 if (wctx->nb_item) printf(",\n");
549 json_print_item_str(wctx, key, value, INDENT);
552 static void json_print_int(WriterContext *wctx, const char *key, int value)
554 JSONContext *json = wctx->priv;
556 if (wctx->nb_item) printf(",\n");
557 printf(INDENT "\"%s\": %d",
558 json_escape_str(&json->buf, &json->buf_size, key, wctx), value);
561 static void json_show_tags(WriterContext *wctx, AVDictionary *dict)
563 AVDictionaryEntry *tag = NULL;
567 printf(",\n" INDENT "\"tags\": {\n");
568 while ((tag = av_dict_get(dict, "", tag, AV_DICT_IGNORE_SUFFIX))) {
569 if (is_first) is_first = 0;
571 json_print_item_str(wctx, tag->key, tag->value, INDENT INDENT);
576 static Writer json_writer = {
578 .priv_size = sizeof(JSONContext),
581 .uninit = json_uninit,
582 .print_header = json_print_header,
583 .print_footer = json_print_footer,
584 .print_chapter_header = json_print_chapter_header,
585 .print_chapter_footer = json_print_chapter_footer,
586 .print_section_header = json_print_section_header,
587 .print_section_footer = json_print_section_footer,
588 .print_integer = json_print_int,
589 .print_string = json_print_str,
590 .show_tags = json_show_tags,
593 static void writer_register_all(void)
595 static int initialized;
601 writer_register(&default_writer);
602 writer_register(&json_writer);
605 #define print_fmt(k, f, ...) do { \
606 if (fast_asprintf(&pbuf, f, __VA_ARGS__)) \
607 writer_print_string(w, k, pbuf.s); \
610 #define print_int(k, v) writer_print_integer(w, k, v)
611 #define print_str(k, v) writer_print_string(w, k, v)
612 #define print_section_header(s) writer_print_section_header(w, s)
613 #define print_section_footer(s) writer_print_section_footer(w, s)
614 #define show_tags(metadata) writer_show_tags(w, metadata)
616 static void show_packet(WriterContext *w, AVFormatContext *fmt_ctx, AVPacket *pkt, int packet_idx)
619 AVStream *st = fmt_ctx->streams[pkt->stream_index];
620 struct print_buf pbuf = {.s = NULL};
622 print_section_header("packet");
623 print_str("codec_type", av_x_if_null(av_get_media_type_string(st->codec->codec_type), "unknown"));
624 print_int("stream_index", pkt->stream_index);
625 print_str("pts", ts_value_string (val_str, sizeof(val_str), pkt->pts));
626 print_str("pts_time", time_value_string(val_str, sizeof(val_str), pkt->pts, &st->time_base));
627 print_str("dts", ts_value_string (val_str, sizeof(val_str), pkt->dts));
628 print_str("dts_time", time_value_string(val_str, sizeof(val_str), pkt->dts, &st->time_base));
629 print_str("duration", ts_value_string (val_str, sizeof(val_str), pkt->duration));
630 print_str("duration_time", time_value_string(val_str, sizeof(val_str), pkt->duration, &st->time_base));
631 print_str("size", value_string (val_str, sizeof(val_str), pkt->size, unit_byte_str));
632 print_fmt("pos", "%"PRId64, pkt->pos);
633 print_fmt("flags", "%c", pkt->flags & AV_PKT_FLAG_KEY ? 'K' : '_');
634 print_section_footer("packet");
640 static void show_packets(WriterContext *w, AVFormatContext *fmt_ctx)
645 av_init_packet(&pkt);
647 while (!av_read_frame(fmt_ctx, &pkt))
648 show_packet(w, fmt_ctx, &pkt, i++);
651 static void show_stream(WriterContext *w, AVFormatContext *fmt_ctx, int stream_idx)
653 AVStream *stream = fmt_ctx->streams[stream_idx];
654 AVCodecContext *dec_ctx;
657 AVRational display_aspect_ratio;
658 struct print_buf pbuf = {.s = NULL};
660 print_section_header("stream");
662 print_int("index", stream->index);
664 if ((dec_ctx = stream->codec)) {
665 if ((dec = dec_ctx->codec)) {
666 print_str("codec_name", dec->name);
667 print_str("codec_long_name", dec->long_name);
669 print_str("codec_name", "unknown");
672 print_str("codec_type", av_x_if_null(av_get_media_type_string(dec_ctx->codec_type), "unknown"));
673 print_fmt("codec_time_base", "%d/%d", dec_ctx->time_base.num, dec_ctx->time_base.den);
675 /* print AVI/FourCC tag */
676 av_get_codec_tag_string(val_str, sizeof(val_str), dec_ctx->codec_tag);
677 print_str("codec_tag_string", val_str);
678 print_fmt("codec_tag", "0x%04x", dec_ctx->codec_tag);
680 switch (dec_ctx->codec_type) {
681 case AVMEDIA_TYPE_VIDEO:
682 print_int("width", dec_ctx->width);
683 print_int("height", dec_ctx->height);
684 print_int("has_b_frames", dec_ctx->has_b_frames);
685 if (dec_ctx->sample_aspect_ratio.num) {
686 print_fmt("sample_aspect_ratio", "%d:%d",
687 dec_ctx->sample_aspect_ratio.num,
688 dec_ctx->sample_aspect_ratio.den);
689 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
690 dec_ctx->width * dec_ctx->sample_aspect_ratio.num,
691 dec_ctx->height * dec_ctx->sample_aspect_ratio.den,
693 print_fmt("display_aspect_ratio", "%d:%d",
694 display_aspect_ratio.num,
695 display_aspect_ratio.den);
697 print_str("pix_fmt", av_x_if_null(av_get_pix_fmt_name(dec_ctx->pix_fmt), "unknown"));
698 print_int("level", dec_ctx->level);
701 case AVMEDIA_TYPE_AUDIO:
702 print_str("sample_fmt",
703 av_x_if_null(av_get_sample_fmt_name(dec_ctx->sample_fmt), "unknown"));
704 print_str("sample_rate", value_string(val_str, sizeof(val_str), dec_ctx->sample_rate, unit_hertz_str));
705 print_int("channels", dec_ctx->channels);
706 print_int("bits_per_sample", av_get_bits_per_sample(dec_ctx->codec_id));
710 print_str("codec_type", "unknown");
712 if (dec_ctx->codec && dec_ctx->codec->priv_class) {
713 const AVOption *opt = NULL;
714 while (opt = av_opt_next(dec_ctx->priv_data,opt)) {
716 if (opt->flags) continue;
717 if (av_opt_get(dec_ctx->priv_data, opt->name, 0, &str) >= 0) {
718 print_str(opt->name, str);
724 if (fmt_ctx->iformat->flags & AVFMT_SHOW_IDS)
725 print_fmt("id", "0x%x", stream->id);
726 print_fmt("r_frame_rate", "%d/%d", stream->r_frame_rate.num, stream->r_frame_rate.den);
727 print_fmt("avg_frame_rate", "%d/%d", stream->avg_frame_rate.num, stream->avg_frame_rate.den);
728 print_fmt("time_base", "%d/%d", stream->time_base.num, stream->time_base.den);
729 print_str("start_time", time_value_string(val_str, sizeof(val_str), stream->start_time, &stream->time_base));
730 print_str("duration", time_value_string(val_str, sizeof(val_str), stream->duration, &stream->time_base));
731 if (stream->nb_frames)
732 print_fmt("nb_frames", "%"PRId64, stream->nb_frames);
734 show_tags(stream->metadata);
736 print_section_footer("stream");
741 static void show_streams(WriterContext *w, AVFormatContext *fmt_ctx)
744 for (i = 0; i < fmt_ctx->nb_streams; i++)
745 show_stream(w, fmt_ctx, i);
748 static void show_format(WriterContext *w, AVFormatContext *fmt_ctx)
751 struct print_buf pbuf = {.s = NULL};
753 print_section_header("format");
754 print_str("filename", fmt_ctx->filename);
755 print_int("nb_streams", fmt_ctx->nb_streams);
756 print_str("format_name", fmt_ctx->iformat->name);
757 print_str("format_long_name", fmt_ctx->iformat->long_name);
758 print_str("start_time", time_value_string(val_str, sizeof(val_str), fmt_ctx->start_time, &AV_TIME_BASE_Q));
759 print_str("duration", time_value_string(val_str, sizeof(val_str), fmt_ctx->duration, &AV_TIME_BASE_Q));
760 print_str("size", value_string(val_str, sizeof(val_str), fmt_ctx->file_size, unit_byte_str));
761 print_str("bit_rate", value_string(val_str, sizeof(val_str), fmt_ctx->bit_rate, unit_bit_per_second_str));
762 show_tags(fmt_ctx->metadata);
763 print_section_footer("format");
768 static int open_input_file(AVFormatContext **fmt_ctx_ptr, const char *filename)
771 AVFormatContext *fmt_ctx = NULL;
772 AVDictionaryEntry *t;
774 if ((err = avformat_open_input(&fmt_ctx, filename, iformat, &format_opts)) < 0) {
775 print_error(filename, err);
778 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
779 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
780 return AVERROR_OPTION_NOT_FOUND;
784 /* fill the streams in the format context */
785 if ((err = avformat_find_stream_info(fmt_ctx, NULL)) < 0) {
786 print_error(filename, err);
790 av_dump_format(fmt_ctx, 0, filename, 0);
792 /* bind a decoder to each input stream */
793 for (i = 0; i < fmt_ctx->nb_streams; i++) {
794 AVStream *stream = fmt_ctx->streams[i];
797 if (!(codec = avcodec_find_decoder(stream->codec->codec_id))) {
798 fprintf(stderr, "Unsupported codec with id %d for input stream %d\n",
799 stream->codec->codec_id, stream->index);
800 } else if (avcodec_open2(stream->codec, codec, NULL) < 0) {
801 fprintf(stderr, "Error while opening codec for input stream %d\n",
806 *fmt_ctx_ptr = fmt_ctx;
810 #define PRINT_CHAPTER(name) do { \
811 if (do_show_ ## name) { \
812 writer_print_chapter_header(wctx, #name); \
813 show_ ## name (wctx, fmt_ctx); \
814 writer_print_chapter_footer(wctx, #name); \
818 static int probe_file(const char *filename)
820 AVFormatContext *fmt_ctx;
824 char *w_name = NULL, *w_args = NULL;
827 writer_register_all();
830 print_format = av_strdup("default");
831 w_name = av_strtok(print_format, "=", &buf);
834 w = writer_get_by_name(w_name);
836 av_log(NULL, AV_LOG_ERROR, "Unknown output format with name '%s'\n", w_name);
837 ret = AVERROR(EINVAL);
841 if ((ret = writer_open(&wctx, w, w_args, NULL)) < 0)
843 if ((ret = open_input_file(&fmt_ctx, filename)))
846 writer_print_header(wctx);
847 PRINT_CHAPTER(packets);
848 PRINT_CHAPTER(streams);
849 PRINT_CHAPTER(format);
850 writer_print_footer(wctx);
852 av_close_input_file(fmt_ctx);
856 av_freep(&print_format);
861 static void show_usage(void)
863 printf("Simple multimedia streams analyzer\n");
864 printf("usage: %s [OPTIONS] [INPUT_FILE]\n", program_name);
868 static int opt_format(const char *opt, const char *arg)
870 iformat = av_find_input_format(arg);
872 fprintf(stderr, "Unknown input format: %s\n", arg);
873 return AVERROR(EINVAL);
878 static void opt_input_file(void *optctx, const char *arg)
880 if (input_filename) {
881 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
882 arg, input_filename);
885 if (!strcmp(arg, "-"))
887 input_filename = arg;
890 static int opt_help(const char *opt, const char *arg)
892 av_log_set_callback(log_callback_help);
894 show_help_options(options, "Main options:\n", 0, 0);
897 show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM);
902 static int opt_pretty(const char *opt, const char *arg)
905 use_value_prefix = 1;
906 use_byte_value_binary_prefix = 1;
907 use_value_sexagesimal_format = 1;
911 static const OptionDef options[] = {
912 #include "cmdutils_common_opts.h"
913 { "f", HAS_ARG, {(void*)opt_format}, "force format", "format" },
914 { "unit", OPT_BOOL, {(void*)&show_value_unit}, "show unit of the displayed values" },
915 { "prefix", OPT_BOOL, {(void*)&use_value_prefix}, "use SI prefixes for the displayed values" },
916 { "byte_binary_prefix", OPT_BOOL, {(void*)&use_byte_value_binary_prefix},
917 "use binary prefixes for byte units" },
918 { "sexagesimal", OPT_BOOL, {(void*)&use_value_sexagesimal_format},
919 "use sexagesimal format HOURS:MM:SS.MICROSECONDS for time units" },
920 { "pretty", 0, {(void*)&opt_pretty},
921 "prettify the format of displayed values, make it more human readable" },
922 { "print_format", OPT_STRING | HAS_ARG, {(void*)&print_format}, "set the output printing format (available formats are: default, json)", "format" },
923 { "show_format", OPT_BOOL, {(void*)&do_show_format} , "show format/container info" },
924 { "show_packets", OPT_BOOL, {(void*)&do_show_packets}, "show packets info" },
925 { "show_streams", OPT_BOOL, {(void*)&do_show_streams}, "show streams info" },
926 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
927 { "i", HAS_ARG, {(void *)opt_input_file}, "read specified file", "input_file"},
931 int main(int argc, char **argv)
935 parse_loglevel(argc, argv, options);
939 avdevice_register_all();
943 parse_options(NULL, argc, argv, options, opt_input_file);
945 if (!input_filename) {
947 fprintf(stderr, "You have to specify one input file.\n");
948 fprintf(stderr, "Use -h to get full help or, even better, run 'man %s'.\n", program_name);
952 ret = probe_file(input_filename);