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 av_noreturn exit_program(int ret)
67 union { double d; int i; } val;
71 static char *value_string(char *buf, int buf_size, struct unit_value uv)
76 if (uv.unit == unit_second_str) {
83 if (uv.unit == unit_second_str && use_value_sexagesimal_format) {
87 mins = (int)secs / 60;
88 secs = secs - mins * 60;
91 snprintf(buf, buf_size, "%d:%02d:%09.6f", hours, mins, secs);
92 } else if (use_value_prefix) {
93 const char *prefix_string;
96 if (uv.unit == unit_byte_str && use_byte_value_binary_prefix) {
97 index = (int) (log(vald)/log(2)) / 10;
98 index = av_clip(index, 0, FF_ARRAY_ELEMS(binary_unit_prefixes) -1);
99 vald /= pow(2, index*10);
100 prefix_string = binary_unit_prefixes[index];
102 index = (int) (log10(vald)) / 3;
103 index = av_clip(index, 0, FF_ARRAY_ELEMS(decimal_unit_prefixes) -1);
104 vald /= pow(10, index*3);
105 prefix_string = decimal_unit_prefixes[index];
108 if (show_float || vald != (int)vald) l = snprintf(buf, buf_size, "%.3f", vald);
109 else l = snprintf(buf, buf_size, "%d", (int)vald);
110 snprintf(buf+l, buf_size-l, "%s%s%s", prefix_string || show_value_unit ? " " : "",
111 prefix_string, show_value_unit ? uv.unit : "");
115 if (show_float) l = snprintf(buf, buf_size, "%.3f", vald);
116 else l = snprintf(buf, buf_size, "%d", (int)vald);
117 snprintf(buf+l, buf_size-l, "%s%s", show_value_unit ? " " : "",
118 show_value_unit ? uv.unit : "");
126 typedef struct WriterContext WriterContext;
128 #define WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS 1
130 typedef struct Writer {
131 int priv_size; ///< private size for the writer context
134 int (*init) (WriterContext *wctx, const char *args, void *opaque);
135 void (*uninit)(WriterContext *wctx);
137 void (*print_header)(WriterContext *ctx);
138 void (*print_footer)(WriterContext *ctx);
140 void (*print_chapter_header)(WriterContext *wctx, const char *);
141 void (*print_chapter_footer)(WriterContext *wctx, const char *);
142 void (*print_section_header)(WriterContext *wctx, const char *);
143 void (*print_section_footer)(WriterContext *wctx, const char *);
144 void (*print_integer) (WriterContext *wctx, const char *, long long int);
145 void (*print_string) (WriterContext *wctx, const char *, const char *);
146 void (*show_tags) (WriterContext *wctx, AVDictionary *dict);
147 int flags; ///< a combination or WRITER_FLAG_*
150 struct WriterContext {
151 const AVClass *class; ///< class of the writer
152 const Writer *writer; ///< the Writer of which this is an instance
153 char *name; ///< name of this writer instance
154 void *priv; ///< private data for use by the filter
155 unsigned int nb_item; ///< number of the item printed in the given section, starting at 0
156 unsigned int nb_section; ///< number of the section printed in the given section sequence, starting at 0
157 unsigned int nb_chapter; ///< number of the chapter, starting at 0
160 static const char *writer_get_name(void *p)
162 WriterContext *wctx = p;
163 return wctx->writer->name;
166 static const AVClass writer_class = {
170 LIBAVUTIL_VERSION_INT,
173 static void writer_close(WriterContext **wctx)
175 if (*wctx && (*wctx)->writer->uninit)
176 (*wctx)->writer->uninit(*wctx);
178 av_freep(&((*wctx)->priv));
182 static int writer_open(WriterContext **wctx, const Writer *writer,
183 const char *args, void *opaque)
187 if (!(*wctx = av_malloc(sizeof(WriterContext)))) {
188 ret = AVERROR(ENOMEM);
192 if (!((*wctx)->priv = av_mallocz(writer->priv_size))) {
193 ret = AVERROR(ENOMEM);
197 (*wctx)->class = &writer_class;
198 (*wctx)->writer = writer;
199 if ((*wctx)->writer->init)
200 ret = (*wctx)->writer->init(*wctx, args, opaque);
211 static inline void writer_print_header(WriterContext *wctx)
213 if (wctx->writer->print_header)
214 wctx->writer->print_header(wctx);
215 wctx->nb_chapter = 0;
218 static inline void writer_print_footer(WriterContext *wctx)
220 if (wctx->writer->print_footer)
221 wctx->writer->print_footer(wctx);
224 static inline void writer_print_chapter_header(WriterContext *wctx,
227 if (wctx->writer->print_chapter_header)
228 wctx->writer->print_chapter_header(wctx, header);
229 wctx->nb_section = 0;
232 static inline void writer_print_chapter_footer(WriterContext *wctx,
235 if (wctx->writer->print_chapter_footer)
236 wctx->writer->print_chapter_footer(wctx, footer);
240 static inline void writer_print_section_header(WriterContext *wctx,
243 if (wctx->writer->print_section_header)
244 wctx->writer->print_section_header(wctx, header);
248 static inline void writer_print_section_footer(WriterContext *wctx,
251 if (wctx->writer->print_section_footer)
252 wctx->writer->print_section_footer(wctx, footer);
256 static inline void writer_print_integer(WriterContext *wctx,
257 const char *key, long long int val)
259 wctx->writer->print_integer(wctx, key, val);
263 static inline void writer_print_string(WriterContext *wctx,
264 const char *key, const char *val, int opt)
266 if (opt && !(wctx->writer->flags & WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS))
268 wctx->writer->print_string(wctx, key, val);
272 static void writer_print_time(WriterContext *wctx, const char *key,
273 int64_t ts, const AVRational *time_base)
277 if (ts == AV_NOPTS_VALUE) {
278 writer_print_string(wctx, key, "N/A", 1);
280 double d = ts * av_q2d(*time_base);
281 value_string(buf, sizeof(buf), (struct unit_value){.val.d=d, .unit=unit_second_str});
282 writer_print_string(wctx, key, buf, 0);
286 static void writer_print_ts(WriterContext *wctx, const char *key, int64_t ts)
288 if (ts == AV_NOPTS_VALUE) {
289 writer_print_string(wctx, key, "N/A", 1);
291 writer_print_integer(wctx, key, ts);
295 static inline void writer_show_tags(WriterContext *wctx, AVDictionary *dict)
297 wctx->writer->show_tags(wctx, dict);
300 #define MAX_REGISTERED_WRITERS_NB 64
302 static const Writer *registered_writers[MAX_REGISTERED_WRITERS_NB + 1];
304 static int writer_register(const Writer *writer)
306 static int next_registered_writer_idx = 0;
308 if (next_registered_writer_idx == MAX_REGISTERED_WRITERS_NB)
309 return AVERROR(ENOMEM);
311 registered_writers[next_registered_writer_idx++] = writer;
315 static const Writer *writer_get_by_name(const char *name)
319 for (i = 0; registered_writers[i]; i++)
320 if (!strcmp(registered_writers[i]->name, name))
321 return registered_writers[i];
333 static char *fast_asprintf(struct print_buf *pbuf, const char *fmt, ...)
339 len = vsnprintf(NULL, 0, fmt, va);
344 if (pbuf->len < len) {
345 char *p = av_realloc(pbuf->s, len + 1);
353 len = vsnprintf(pbuf->s, len + 1, fmt, va);
365 #define ESCAPE_INIT_BUF_SIZE 256
367 #define ESCAPE_CHECK_SIZE(src, size, max_size) \
368 if (size > max_size) { \
370 snprintf(buf, sizeof(buf), "%s", src); \
371 av_log(log_ctx, AV_LOG_WARNING, \
372 "String '%s...' with is too big\n", buf); \
373 return "FFPROBE_TOO_BIG_STRING"; \
376 #define ESCAPE_REALLOC_BUF(dst_size_p, dst_p, src, size) \
377 if (*dst_size_p < size) { \
378 char *q = av_realloc(*dst_p, size); \
381 snprintf(buf, sizeof(buf), "%s", src); \
382 av_log(log_ctx, AV_LOG_WARNING, \
383 "String '%s...' could not be escaped\n", buf); \
384 return "FFPROBE_THIS_STRING_COULD_NOT_BE_ESCAPED"; \
386 *dst_size_p = size; \
394 static void default_print_footer(WriterContext *wctx)
399 static void default_print_chapter_header(WriterContext *wctx, const char *chapter)
401 if (wctx->nb_chapter)
405 /* lame uppercasing routine, assumes the string is lower case ASCII */
406 static inline char *upcase_string(char *dst, size_t dst_size, const char *src)
409 for (i = 0; src[i] && i < dst_size-1; i++)
415 static void default_print_section_header(WriterContext *wctx, const char *section)
419 if (wctx->nb_section)
421 printf("[%s]\n", upcase_string(buf, sizeof(buf), section));
424 static void default_print_section_footer(WriterContext *wctx, const char *section)
428 printf("[/%s]", upcase_string(buf, sizeof(buf), section));
431 static void default_print_str(WriterContext *wctx, const char *key, const char *value)
433 printf("%s=%s\n", key, value);
436 static void default_print_int(WriterContext *wctx, const char *key, long long int value)
438 printf("%s=%lld\n", key, value);
441 static void default_show_tags(WriterContext *wctx, AVDictionary *dict)
443 AVDictionaryEntry *tag = NULL;
444 while ((tag = av_dict_get(dict, "", tag, AV_DICT_IGNORE_SUFFIX))) {
446 writer_print_string(wctx, tag->key, tag->value, 0);
450 static const Writer default_writer = {
452 .print_footer = default_print_footer,
453 .print_chapter_header = default_print_chapter_header,
454 .print_section_header = default_print_section_header,
455 .print_section_footer = default_print_section_footer,
456 .print_integer = default_print_int,
457 .print_string = default_print_str,
458 .show_tags = default_show_tags,
459 .flags = WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS,
465 * Escape \n, \r, \\ and sep characters contained in s, and print the
468 static const char *c_escape_str(char **dst, size_t *dst_size,
469 const char *src, const char sep, void *log_ctx)
475 /* precompute size */
476 for (p = src; *p; p++, size++) {
477 ESCAPE_CHECK_SIZE(src, size, SIZE_MAX-2);
478 if (*p == '\n' || *p == '\r' || *p == '\\')
482 ESCAPE_REALLOC_BUF(dst_size, dst, src, size);
485 for (p = src; *p; p++) {
487 case '\n': *q++ = '\\'; *q++ = 'n'; break;
488 case '\r': *q++ = '\\'; *q++ = 'r'; break;
489 case '\\': *q++ = '\\'; *q++ = '\\'; break;
501 * Quote fields containing special characters, check RFC4180.
503 static const char *csv_escape_str(char **dst, size_t *dst_size,
504 const char *src, const char sep, void *log_ctx)
511 /* precompute size */
512 for (p = src; *p; p++, size++) {
513 ESCAPE_CHECK_SIZE(src, size, SIZE_MAX-4);
514 if (*p == '"' || *p == sep || *p == '\n' || *p == '\r')
523 ESCAPE_REALLOC_BUF(dst_size, dst, src, size);
541 static const char *none_escape_str(char **dst, size_t *dst_size,
542 const char *src, const char sep, void *log_ctx)
547 typedef struct CompactContext {
548 const AVClass *class;
554 char *escape_mode_str;
555 const char * (*escape_str)(char **dst, size_t *dst_size,
556 const char *src, const char sep, void *log_ctx);
559 #define OFFSET(x) offsetof(CompactContext, x)
561 static const AVOption compact_options[]= {
562 {"item_sep", "set item separator", OFFSET(item_sep_str), AV_OPT_TYPE_STRING, {.str="|"}, CHAR_MIN, CHAR_MAX },
563 {"s", "set item separator", OFFSET(item_sep_str), AV_OPT_TYPE_STRING, {.str="|"}, CHAR_MIN, CHAR_MAX },
564 {"nokey", "force no key printing", OFFSET(nokey), AV_OPT_TYPE_INT, {.dbl=0}, 0, 1 },
565 {"nk", "force no key printing", OFFSET(nokey), AV_OPT_TYPE_INT, {.dbl=0}, 0, 1 },
566 {"escape", "set escape mode", OFFSET(escape_mode_str), AV_OPT_TYPE_STRING, {.str="c"}, CHAR_MIN, CHAR_MAX },
567 {"e", "set escape mode", OFFSET(escape_mode_str), AV_OPT_TYPE_STRING, {.str="c"}, CHAR_MIN, CHAR_MAX },
571 static const char *compact_get_name(void *ctx)
576 static const AVClass compact_class = {
582 static av_cold int compact_init(WriterContext *wctx, const char *args, void *opaque)
584 CompactContext *compact = wctx->priv;
587 compact->class = &compact_class;
588 av_opt_set_defaults(compact);
591 (err = (av_set_options_string(compact, args, "=", ":"))) < 0) {
592 av_log(wctx, AV_LOG_ERROR, "Error parsing options string: '%s'\n", args);
595 if (strlen(compact->item_sep_str) != 1) {
596 av_log(wctx, AV_LOG_ERROR, "Item separator '%s' specified, but must contain a single character\n",
597 compact->item_sep_str);
598 return AVERROR(EINVAL);
600 compact->item_sep = compact->item_sep_str[0];
602 compact->buf_size = ESCAPE_INIT_BUF_SIZE;
603 if (!(compact->buf = av_malloc(compact->buf_size)))
604 return AVERROR(ENOMEM);
606 if (!strcmp(compact->escape_mode_str, "none")) compact->escape_str = none_escape_str;
607 else if (!strcmp(compact->escape_mode_str, "c" )) compact->escape_str = c_escape_str;
608 else if (!strcmp(compact->escape_mode_str, "csv" )) compact->escape_str = csv_escape_str;
610 av_log(wctx, AV_LOG_ERROR, "Unknown escape mode '%s'\n", compact->escape_mode_str);
611 return AVERROR(EINVAL);
617 static av_cold void compact_uninit(WriterContext *wctx)
619 CompactContext *compact = wctx->priv;
621 av_freep(&compact->item_sep_str);
622 av_freep(&compact->buf);
623 av_freep(&compact->escape_mode_str);
626 static void compact_print_section_header(WriterContext *wctx, const char *section)
628 CompactContext *compact = wctx->priv;
630 printf("%s%c", section, compact->item_sep);
633 static void compact_print_section_footer(WriterContext *wctx, const char *section)
638 static void compact_print_str(WriterContext *wctx, const char *key, const char *value)
640 CompactContext *compact = wctx->priv;
642 if (wctx->nb_item) printf("%c", compact->item_sep);
645 printf("%s", compact->escape_str(&compact->buf, &compact->buf_size,
646 value, compact->item_sep, wctx));
649 static void compact_print_int(WriterContext *wctx, const char *key, long long int value)
651 CompactContext *compact = wctx->priv;
653 if (wctx->nb_item) printf("%c", compact->item_sep);
656 printf("%lld", value);
659 static void compact_show_tags(WriterContext *wctx, AVDictionary *dict)
661 CompactContext *compact = wctx->priv;
662 AVDictionaryEntry *tag = NULL;
664 while ((tag = av_dict_get(dict, "", tag, AV_DICT_IGNORE_SUFFIX))) {
665 if (wctx->nb_item) printf("%c", compact->item_sep);
667 printf("tag:%s=", compact->escape_str(&compact->buf, &compact->buf_size,
668 tag->key, compact->item_sep, wctx));
669 printf("%s", compact->escape_str(&compact->buf, &compact->buf_size,
670 tag->value, compact->item_sep, wctx));
674 static const Writer compact_writer = {
676 .priv_size = sizeof(CompactContext),
677 .init = compact_init,
678 .uninit = compact_uninit,
679 .print_section_header = compact_print_section_header,
680 .print_section_footer = compact_print_section_footer,
681 .print_integer = compact_print_int,
682 .print_string = compact_print_str,
683 .show_tags = compact_show_tags,
684 .flags = WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS,
689 static av_cold int csv_init(WriterContext *wctx, const char *args, void *opaque)
691 return compact_init(wctx, "item_sep=,:nokey=1:escape=csv", opaque);
694 static const Writer csv_writer = {
696 .priv_size = sizeof(CompactContext),
698 .uninit = compact_uninit,
699 .print_section_header = compact_print_section_header,
700 .print_section_footer = compact_print_section_footer,
701 .print_integer = compact_print_int,
702 .print_string = compact_print_str,
703 .show_tags = compact_show_tags,
704 .flags = WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS,
710 int multiple_entries; ///< tells if the given chapter requires multiple entries
715 static av_cold int json_init(WriterContext *wctx, const char *args, void *opaque)
717 JSONContext *json = wctx->priv;
719 json->buf_size = ESCAPE_INIT_BUF_SIZE;
720 if (!(json->buf = av_malloc(json->buf_size)))
721 return AVERROR(ENOMEM);
726 static av_cold void json_uninit(WriterContext *wctx)
728 JSONContext *json = wctx->priv;
729 av_freep(&json->buf);
732 static const char *json_escape_str(char **dst, size_t *dst_size, const char *src,
735 static const char json_escape[] = {'"', '\\', '\b', '\f', '\n', '\r', '\t', 0};
736 static const char json_subst[] = {'"', '\\', 'b', 'f', 'n', 'r', 't', 0};
741 // compute the length of the escaped string
742 for (p = src; *p; p++) {
743 ESCAPE_CHECK_SIZE(src, size, SIZE_MAX-6);
744 if (strchr(json_escape, *p)) size += 2; // simple escape
745 else if ((unsigned char)*p < 32) size += 6; // handle non-printable chars
746 else size += 1; // char copy
748 ESCAPE_REALLOC_BUF(dst_size, dst, src, size);
751 for (p = src; *p; p++) {
752 char *s = strchr(json_escape, *p);
755 *q++ = json_subst[s - json_escape];
756 } else if ((unsigned char)*p < 32) {
757 snprintf(q, 7, "\\u00%02x", *p & 0xff);
767 static void json_print_header(WriterContext *wctx)
772 static void json_print_footer(WriterContext *wctx)
777 static void json_print_chapter_header(WriterContext *wctx, const char *chapter)
779 JSONContext *json = wctx->priv;
781 if (wctx->nb_chapter)
783 json->multiple_entries = !strcmp(chapter, "packets") || !strcmp(chapter, "streams");
784 printf("\n \"%s\":%s", json_escape_str(&json->buf, &json->buf_size, chapter, wctx),
785 json->multiple_entries ? " [" : " ");
788 static void json_print_chapter_footer(WriterContext *wctx, const char *chapter)
790 JSONContext *json = wctx->priv;
792 if (json->multiple_entries)
796 static void json_print_section_header(WriterContext *wctx, const char *section)
798 if (wctx->nb_section) printf(",");
802 static void json_print_section_footer(WriterContext *wctx, const char *section)
807 static inline void json_print_item_str(WriterContext *wctx,
808 const char *key, const char *value,
811 JSONContext *json = wctx->priv;
813 printf("%s\"%s\":", indent, json_escape_str(&json->buf, &json->buf_size, key, wctx));
814 printf(" \"%s\"", json_escape_str(&json->buf, &json->buf_size, value, wctx));
819 static void json_print_str(WriterContext *wctx, const char *key, const char *value)
821 if (wctx->nb_item) printf(",\n");
822 json_print_item_str(wctx, key, value, INDENT);
825 static void json_print_int(WriterContext *wctx, const char *key, long long int value)
827 JSONContext *json = wctx->priv;
829 if (wctx->nb_item) printf(",\n");
830 printf(INDENT "\"%s\": %lld",
831 json_escape_str(&json->buf, &json->buf_size, key, wctx), value);
834 static void json_show_tags(WriterContext *wctx, AVDictionary *dict)
836 AVDictionaryEntry *tag = NULL;
840 printf(",\n" INDENT "\"tags\": {\n");
841 while ((tag = av_dict_get(dict, "", tag, AV_DICT_IGNORE_SUFFIX))) {
842 if (is_first) is_first = 0;
844 json_print_item_str(wctx, tag->key, tag->value, INDENT INDENT);
849 static const Writer json_writer = {
851 .priv_size = sizeof(JSONContext),
853 .uninit = json_uninit,
854 .print_header = json_print_header,
855 .print_footer = json_print_footer,
856 .print_chapter_header = json_print_chapter_header,
857 .print_chapter_footer = json_print_chapter_footer,
858 .print_section_header = json_print_section_header,
859 .print_section_footer = json_print_section_footer,
860 .print_integer = json_print_int,
861 .print_string = json_print_str,
862 .show_tags = json_show_tags,
865 static void writer_register_all(void)
867 static int initialized;
873 writer_register(&default_writer);
874 writer_register(&compact_writer);
875 writer_register(&csv_writer);
876 writer_register(&json_writer);
879 #define print_fmt(k, f, ...) do { \
880 if (fast_asprintf(&pbuf, f, __VA_ARGS__)) \
881 writer_print_string(w, k, pbuf.s, 0); \
884 #define print_fmt_opt(k, f, ...) do { \
885 if (fast_asprintf(&pbuf, f, __VA_ARGS__)) \
886 writer_print_string(w, k, pbuf.s, 1); \
889 #define print_int(k, v) writer_print_integer(w, k, v)
890 #define print_str(k, v) writer_print_string(w, k, v, 0)
891 #define print_str_opt(k, v) writer_print_string(w, k, v, 1)
892 #define print_time(k, v, tb) writer_print_time(w, k, v, tb)
893 #define print_ts(k, v) writer_print_ts(w, k, v)
894 #define print_val(k, v, u) writer_print_string(w, k, \
895 value_string(val_str, sizeof(val_str), (struct unit_value){.val.i = v, .unit=u}), 0)
896 #define print_section_header(s) writer_print_section_header(w, s)
897 #define print_section_footer(s) writer_print_section_footer(w, s)
898 #define show_tags(metadata) writer_show_tags(w, metadata)
900 static void show_packet(WriterContext *w, AVFormatContext *fmt_ctx, AVPacket *pkt, int packet_idx)
903 AVStream *st = fmt_ctx->streams[pkt->stream_index];
904 struct print_buf pbuf = {.s = NULL};
907 print_section_header("packet");
908 s = av_get_media_type_string(st->codec->codec_type);
909 if (s) print_str ("codec_type", s);
910 else print_str_opt("codec_type", "unknown");
911 print_int("stream_index", pkt->stream_index);
912 print_ts ("pts", pkt->pts);
913 print_time("pts_time", pkt->pts, &st->time_base);
914 print_ts ("dts", pkt->dts);
915 print_time("dts_time", pkt->dts, &st->time_base);
916 print_ts ("duration", pkt->duration);
917 print_time("duration_time", pkt->duration, &st->time_base);
918 print_val("size", pkt->size, unit_byte_str);
919 if (pkt->pos != -1) print_fmt ("pos", "%"PRId64, pkt->pos);
920 else print_str_opt("pos", "N/A");
921 print_fmt("flags", "%c", pkt->flags & AV_PKT_FLAG_KEY ? 'K' : '_');
922 print_section_footer("packet");
928 static void show_packets(WriterContext *w, AVFormatContext *fmt_ctx)
933 av_init_packet(&pkt);
935 while (!av_read_frame(fmt_ctx, &pkt))
936 show_packet(w, fmt_ctx, &pkt, i++);
939 static void show_stream(WriterContext *w, AVFormatContext *fmt_ctx, int stream_idx)
941 AVStream *stream = fmt_ctx->streams[stream_idx];
942 AVCodecContext *dec_ctx;
946 AVRational display_aspect_ratio;
947 struct print_buf pbuf = {.s = NULL};
949 print_section_header("stream");
951 print_int("index", stream->index);
953 if ((dec_ctx = stream->codec)) {
954 if ((dec = dec_ctx->codec)) {
955 print_str("codec_name", dec->name);
956 print_str("codec_long_name", dec->long_name);
958 print_str_opt("codec_name", "unknown");
959 print_str_opt("codec_long_name", "unknown");
962 s = av_get_media_type_string(dec_ctx->codec_type);
963 if (s) print_str ("codec_type", s);
964 else print_str_opt("codec_type", "unknown");
965 print_fmt("codec_time_base", "%d/%d", dec_ctx->time_base.num, dec_ctx->time_base.den);
967 /* print AVI/FourCC tag */
968 av_get_codec_tag_string(val_str, sizeof(val_str), dec_ctx->codec_tag);
969 print_str("codec_tag_string", val_str);
970 print_fmt("codec_tag", "0x%04x", dec_ctx->codec_tag);
972 switch (dec_ctx->codec_type) {
973 case AVMEDIA_TYPE_VIDEO:
974 print_int("width", dec_ctx->width);
975 print_int("height", dec_ctx->height);
976 print_int("has_b_frames", dec_ctx->has_b_frames);
977 if (dec_ctx->sample_aspect_ratio.num) {
978 print_fmt("sample_aspect_ratio", "%d:%d",
979 dec_ctx->sample_aspect_ratio.num,
980 dec_ctx->sample_aspect_ratio.den);
981 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
982 dec_ctx->width * dec_ctx->sample_aspect_ratio.num,
983 dec_ctx->height * dec_ctx->sample_aspect_ratio.den,
985 print_fmt("display_aspect_ratio", "%d:%d",
986 display_aspect_ratio.num,
987 display_aspect_ratio.den);
989 print_str_opt("sample_aspect_ratio", "N/A");
990 print_str_opt("display_aspect_ratio", "N/A");
992 s = av_get_pix_fmt_name(dec_ctx->pix_fmt);
993 if (s) print_str ("pix_fmt", s);
994 else print_str_opt("pix_fmt", "unknown");
995 print_int("level", dec_ctx->level);
996 if (dec_ctx->timecode_frame_start >= 0) {
997 uint32_t tc = dec_ctx->timecode_frame_start;
998 print_fmt("timecode", "%02d:%02d:%02d%c%02d",
999 tc>>19 & 0x1f, // hours
1000 tc>>13 & 0x3f, // minutes
1001 tc>>6 & 0x3f, // seconds
1002 tc & 1<<24 ? ';' : ':', // drop
1003 tc & 0x3f); // frames
1005 print_str_opt("timecode", "N/A");
1009 case AVMEDIA_TYPE_AUDIO:
1010 s = av_get_sample_fmt_name(dec_ctx->sample_fmt);
1011 if (s) print_str ("sample_fmt", s);
1012 else print_str_opt("sample_fmt", "unknown");
1013 print_val("sample_rate", dec_ctx->sample_rate, unit_hertz_str);
1014 print_int("channels", dec_ctx->channels);
1015 print_int("bits_per_sample", av_get_bits_per_sample(dec_ctx->codec_id));
1019 print_str_opt("codec_type", "unknown");
1021 if (dec_ctx->codec && dec_ctx->codec->priv_class) {
1022 const AVOption *opt = NULL;
1023 while (opt = av_opt_next(dec_ctx->priv_data,opt)) {
1025 if (opt->flags) continue;
1026 if (av_opt_get(dec_ctx->priv_data, opt->name, 0, &str) >= 0) {
1027 print_str(opt->name, str);
1033 if (fmt_ctx->iformat->flags & AVFMT_SHOW_IDS) print_fmt ("id", "0x%x", stream->id);
1034 else print_str_opt("id", "N/A");
1035 print_fmt("r_frame_rate", "%d/%d", stream->r_frame_rate.num, stream->r_frame_rate.den);
1036 print_fmt("avg_frame_rate", "%d/%d", stream->avg_frame_rate.num, stream->avg_frame_rate.den);
1037 print_fmt("time_base", "%d/%d", stream->time_base.num, stream->time_base.den);
1038 print_time("start_time", stream->start_time, &stream->time_base);
1039 print_time("duration", stream->duration, &stream->time_base);
1040 if (stream->nb_frames) print_fmt ("nb_frames", "%"PRId64, stream->nb_frames);
1041 else print_str_opt("nb_frames", "N/A");
1042 show_tags(stream->metadata);
1044 print_section_footer("stream");
1049 static void show_streams(WriterContext *w, AVFormatContext *fmt_ctx)
1052 for (i = 0; i < fmt_ctx->nb_streams; i++)
1053 show_stream(w, fmt_ctx, i);
1056 static void show_format(WriterContext *w, AVFormatContext *fmt_ctx)
1059 int64_t size = avio_size(fmt_ctx->pb);
1060 struct print_buf pbuf = {.s = NULL};
1062 print_section_header("format");
1063 print_str("filename", fmt_ctx->filename);
1064 print_int("nb_streams", fmt_ctx->nb_streams);
1065 print_str("format_name", fmt_ctx->iformat->name);
1066 print_str("format_long_name", fmt_ctx->iformat->long_name);
1067 print_time("start_time", fmt_ctx->start_time, &AV_TIME_BASE_Q);
1068 print_time("duration", fmt_ctx->duration, &AV_TIME_BASE_Q);
1069 if (size >= 0) print_val ("size", size, unit_byte_str);
1070 else print_str_opt("size", "N/A");
1071 if (fmt_ctx->bit_rate > 0) print_val ("bit_rate", fmt_ctx->bit_rate, unit_bit_per_second_str);
1072 else print_str_opt("bit_rate", "N/A");
1073 show_tags(fmt_ctx->metadata);
1074 print_section_footer("format");
1079 static int open_input_file(AVFormatContext **fmt_ctx_ptr, const char *filename)
1082 AVFormatContext *fmt_ctx = NULL;
1083 AVDictionaryEntry *t;
1085 if ((err = avformat_open_input(&fmt_ctx, filename, iformat, &format_opts)) < 0) {
1086 print_error(filename, err);
1089 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
1090 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
1091 return AVERROR_OPTION_NOT_FOUND;
1095 /* fill the streams in the format context */
1096 if ((err = avformat_find_stream_info(fmt_ctx, NULL)) < 0) {
1097 print_error(filename, err);
1101 av_dump_format(fmt_ctx, 0, filename, 0);
1103 /* bind a decoder to each input stream */
1104 for (i = 0; i < fmt_ctx->nb_streams; i++) {
1105 AVStream *stream = fmt_ctx->streams[i];
1108 if (!(codec = avcodec_find_decoder(stream->codec->codec_id))) {
1109 fprintf(stderr, "Unsupported codec with id %d for input stream %d\n",
1110 stream->codec->codec_id, stream->index);
1111 } else if (avcodec_open2(stream->codec, codec, NULL) < 0) {
1112 fprintf(stderr, "Error while opening codec for input stream %d\n",
1117 *fmt_ctx_ptr = fmt_ctx;
1121 #define PRINT_CHAPTER(name) do { \
1122 if (do_show_ ## name) { \
1123 writer_print_chapter_header(wctx, #name); \
1124 show_ ## name (wctx, fmt_ctx); \
1125 writer_print_chapter_footer(wctx, #name); \
1129 static int probe_file(const char *filename)
1131 AVFormatContext *fmt_ctx;
1135 char *w_name = NULL, *w_args = NULL;
1136 WriterContext *wctx;
1138 writer_register_all();
1141 print_format = av_strdup("default");
1142 w_name = av_strtok(print_format, "=", &buf);
1145 w = writer_get_by_name(w_name);
1147 av_log(NULL, AV_LOG_ERROR, "Unknown output format with name '%s'\n", w_name);
1148 ret = AVERROR(EINVAL);
1152 if ((ret = writer_open(&wctx, w, w_args, NULL)) < 0)
1154 if ((ret = open_input_file(&fmt_ctx, filename)))
1157 writer_print_header(wctx);
1158 PRINT_CHAPTER(packets);
1159 PRINT_CHAPTER(streams);
1160 PRINT_CHAPTER(format);
1161 writer_print_footer(wctx);
1163 avformat_close_input(&fmt_ctx);
1164 writer_close(&wctx);
1167 av_freep(&print_format);
1172 static void show_usage(void)
1174 printf("Simple multimedia streams analyzer\n");
1175 printf("usage: %s [OPTIONS] [INPUT_FILE]\n", program_name);
1179 static int opt_format(const char *opt, const char *arg)
1181 iformat = av_find_input_format(arg);
1183 fprintf(stderr, "Unknown input format: %s\n", arg);
1184 return AVERROR(EINVAL);
1189 static void opt_input_file(void *optctx, const char *arg)
1191 if (input_filename) {
1192 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
1193 arg, input_filename);
1196 if (!strcmp(arg, "-"))
1198 input_filename = arg;
1201 static int opt_help(const char *opt, const char *arg)
1203 av_log_set_callback(log_callback_help);
1205 show_help_options(options, "Main options:\n", 0, 0);
1208 show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM);
1213 static int opt_pretty(const char *opt, const char *arg)
1215 show_value_unit = 1;
1216 use_value_prefix = 1;
1217 use_byte_value_binary_prefix = 1;
1218 use_value_sexagesimal_format = 1;
1222 static const OptionDef options[] = {
1223 #include "cmdutils_common_opts.h"
1224 { "f", HAS_ARG, {(void*)opt_format}, "force format", "format" },
1225 { "unit", OPT_BOOL, {(void*)&show_value_unit}, "show unit of the displayed values" },
1226 { "prefix", OPT_BOOL, {(void*)&use_value_prefix}, "use SI prefixes for the displayed values" },
1227 { "byte_binary_prefix", OPT_BOOL, {(void*)&use_byte_value_binary_prefix},
1228 "use binary prefixes for byte units" },
1229 { "sexagesimal", OPT_BOOL, {(void*)&use_value_sexagesimal_format},
1230 "use sexagesimal format HOURS:MM:SS.MICROSECONDS for time units" },
1231 { "pretty", 0, {(void*)&opt_pretty},
1232 "prettify the format of displayed values, make it more human readable" },
1233 { "print_format", OPT_STRING | HAS_ARG, {(void*)&print_format},
1234 "set the output printing format (available formats are: default, compact, csv, json)", "format" },
1235 { "show_format", OPT_BOOL, {(void*)&do_show_format} , "show format/container info" },
1236 { "show_packets", OPT_BOOL, {(void*)&do_show_packets}, "show packets info" },
1237 { "show_streams", OPT_BOOL, {(void*)&do_show_streams}, "show streams info" },
1238 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
1239 { "i", HAS_ARG, {(void *)opt_input_file}, "read specified file", "input_file"},
1243 int main(int argc, char **argv)
1247 parse_loglevel(argc, argv, options);
1249 avformat_network_init();
1252 avdevice_register_all();
1256 parse_options(NULL, argc, argv, options, opt_input_file);
1258 if (!input_filename) {
1260 fprintf(stderr, "You have to specify one input file.\n");
1261 fprintf(stderr, "Use -h to get full help or, even better, run 'man %s'.\n", program_name);
1265 ret = probe_file(input_filename);
1267 avformat_network_deinit();