dvbsub: cosmetics: Group all debug code together
[libav.git] / avprobe.c
1 /*
2 * avprobe : Simple Media Prober based on the Libav libraries
3 * Copyright (c) 2007-2010 Stefano Sabatini
4 *
5 * This file is part of Libav.
6 *
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.
11 *
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.
16 *
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
20 */
21
22 #include "config.h"
23
24 #include "libavformat/avformat.h"
25 #include "libavcodec/avcodec.h"
26 #include "libavutil/avstring.h"
27 #include "libavutil/display.h"
28 #include "libavutil/opt.h"
29 #include "libavutil/pixdesc.h"
30 #include "libavutil/stereo3d.h"
31 #include "libavutil/dict.h"
32 #include "libavutil/libm.h"
33 #include "libavdevice/avdevice.h"
34 #include "cmdutils.h"
35
36 typedef struct InputStream {
37 AVStream *st;
38
39 AVCodecContext *dec_ctx;
40 } InputStream;
41
42 typedef struct InputFile {
43 AVFormatContext *fmt_ctx;
44
45 InputStream *streams;
46 int nb_streams;
47 } InputFile;
48
49 const char program_name[] = "avprobe";
50 const int program_birth_year = 2007;
51
52 static int do_show_format = 0;
53 static AVDictionary *fmt_entries_to_show = NULL;
54 static int nb_fmt_entries_to_show;
55 static int do_show_packets = 0;
56 static int do_show_streams = 0;
57 static AVDictionary *stream_entries_to_show = NULL;
58 static int nb_stream_entries_to_show;
59
60 /* key used to print when probe_{int,str}(NULL, ..) is invoked */
61 static const char *header_key;
62
63 static int show_value_unit = 0;
64 static int use_value_prefix = 0;
65 static int use_byte_value_binary_prefix = 0;
66 static int use_value_sexagesimal_format = 0;
67
68 /* globals */
69 static const OptionDef *options;
70
71 /* avprobe context */
72 static const char *input_filename;
73 static AVInputFormat *iformat = NULL;
74
75 static const char *const binary_unit_prefixes [] = { "", "Ki", "Mi", "Gi", "Ti", "Pi" };
76 static const char *const decimal_unit_prefixes[] = { "", "K" , "M" , "G" , "T" , "P" };
77
78 static const char unit_second_str[] = "s" ;
79 static const char unit_hertz_str[] = "Hz" ;
80 static const char unit_byte_str[] = "byte" ;
81 static const char unit_bit_per_second_str[] = "bit/s";
82
83 static void avprobe_cleanup(int ret)
84 {
85 av_dict_free(&fmt_entries_to_show);
86 av_dict_free(&stream_entries_to_show);
87 }
88
89 /*
90 * The output is structured in array and objects that might contain items
91 * Array could require the objects within to not be named.
92 * Object could require the items within to be named.
93 *
94 * For flat representation the name of each section is saved on prefix so it
95 * can be rendered in order to represent nested structures (e.g. array of
96 * objects for the packets list).
97 *
98 * Within an array each element can need an unique identifier or an index.
99 *
100 * Nesting level is accounted separately.
101 */
102
103 typedef enum {
104 ARRAY,
105 OBJECT
106 } PrintElementType;
107
108 typedef struct PrintElement {
109 const char *name;
110 PrintElementType type;
111 int64_t index;
112 int64_t nb_elems;
113 } PrintElement;
114
115 typedef struct PrintContext {
116 PrintElement *prefix;
117 int level;
118 void (*print_header)(void);
119 void (*print_footer)(void);
120
121 void (*print_array_header) (const char *name, int plain_values);
122 void (*print_array_footer) (const char *name, int plain_values);
123 void (*print_object_header)(const char *name);
124 void (*print_object_footer)(const char *name);
125
126 void (*print_integer) (const char *key, int64_t value);
127 void (*print_string) (const char *key, const char *value);
128 } PrintContext;
129
130 static AVIOContext *probe_out = NULL;
131 static PrintContext octx;
132 #define AVP_INDENT() avio_printf(probe_out, "%*c", octx.level * 2, ' ')
133
134 /*
135 * Default format, INI
136 *
137 * - all key and values are utf8
138 * - '.' is the subgroup separator
139 * - newlines and the following characters are escaped
140 * - '\' is the escape character
141 * - '#' is the comment
142 * - '=' is the key/value separators
143 * - ':' is not used but usually parsed as key/value separator
144 */
145
146 static void ini_print_header(void)
147 {
148 avio_printf(probe_out, "# avprobe output\n\n");
149 }
150 static void ini_print_footer(void)
151 {
152 avio_w8(probe_out, '\n');
153 }
154
155 static void ini_escape_print(const char *s)
156 {
157 int i = 0;
158 char c = 0;
159
160 while (c = s[i++]) {
161 switch (c) {
162 case '\r': avio_printf(probe_out, "%s", "\\r"); break;
163 case '\n': avio_printf(probe_out, "%s", "\\n"); break;
164 case '\f': avio_printf(probe_out, "%s", "\\f"); break;
165 case '\b': avio_printf(probe_out, "%s", "\\b"); break;
166 case '\t': avio_printf(probe_out, "%s", "\\t"); break;
167 case '\\':
168 case '#' :
169 case '=' :
170 case ':' : avio_w8(probe_out, '\\');
171 default:
172 if ((unsigned char)c < 32)
173 avio_printf(probe_out, "\\x00%02x", c & 0xff);
174 else
175 avio_w8(probe_out, c);
176 break;
177 }
178 }
179 }
180
181 static void ini_print_array_header(const char *name, int plain_values)
182 {
183 if (!plain_values) {
184 /* Add a new line if we create a new full group */
185 if (octx.prefix[octx.level -1].nb_elems)
186 avio_printf(probe_out, "\n");
187 } else {
188 ini_escape_print(name);
189 avio_w8(probe_out, '=');
190 }
191 }
192
193 static void ini_print_array_footer(const char *name, int plain_values)
194 {
195 if (plain_values)
196 avio_printf(probe_out, "\n");
197 }
198
199 static void ini_print_object_header(const char *name)
200 {
201 int i;
202 PrintElement *el = octx.prefix + octx.level -1;
203
204 if (el->nb_elems)
205 avio_printf(probe_out, "\n");
206
207 avio_printf(probe_out, "[");
208
209 for (i = 1; i < octx.level; i++) {
210 el = octx.prefix + i;
211 avio_printf(probe_out, "%s.", el->name);
212 if (el->index >= 0)
213 avio_printf(probe_out, "%"PRId64".", el->index);
214 }
215
216 avio_printf(probe_out, "%s", name);
217 if (el->type == ARRAY)
218 avio_printf(probe_out, ".%"PRId64"", el->nb_elems);
219 avio_printf(probe_out, "]\n");
220 }
221
222 static void ini_print_integer(const char *key, int64_t value)
223 {
224 if (key) {
225 ini_escape_print(key);
226 avio_printf(probe_out, "=%"PRId64"\n", value);
227 } else {
228 if (octx.prefix[octx.level -1].nb_elems)
229 avio_printf(probe_out, ",");
230 avio_printf(probe_out, "%"PRId64, value);
231 }
232 }
233
234
235 static void ini_print_string(const char *key, const char *value)
236 {
237 ini_escape_print(key);
238 avio_printf(probe_out, "=");
239 ini_escape_print(value);
240 avio_w8(probe_out, '\n');
241 }
242
243 /*
244 * Alternate format, JSON
245 */
246
247 static void json_print_header(void)
248 {
249 avio_printf(probe_out, "{");
250 }
251 static void json_print_footer(void)
252 {
253 avio_printf(probe_out, "}\n");
254 }
255
256 static void json_print_array_header(const char *name, int plain_values)
257 {
258 if (octx.prefix[octx.level -1].nb_elems)
259 avio_printf(probe_out, ",\n");
260 AVP_INDENT();
261 avio_printf(probe_out, "\"%s\" : ", name);
262 avio_printf(probe_out, "[\n");
263 }
264
265 static void json_print_array_footer(const char *name, int plain_values)
266 {
267 avio_printf(probe_out, "\n");
268 AVP_INDENT();
269 avio_printf(probe_out, "]");
270 }
271
272 static void json_print_object_header(const char *name)
273 {
274 if (octx.prefix[octx.level -1].nb_elems)
275 avio_printf(probe_out, ",\n");
276 AVP_INDENT();
277 if (octx.prefix[octx.level -1].type == OBJECT)
278 avio_printf(probe_out, "\"%s\" : ", name);
279 avio_printf(probe_out, "{\n");
280 }
281
282 static void json_print_object_footer(const char *name)
283 {
284 avio_printf(probe_out, "\n");
285 AVP_INDENT();
286 avio_printf(probe_out, "}");
287 }
288
289 static void json_print_integer(const char *key, int64_t value)
290 {
291 if (key) {
292 if (octx.prefix[octx.level -1].nb_elems)
293 avio_printf(probe_out, ",\n");
294 AVP_INDENT();
295 avio_printf(probe_out, "\"%s\" : ", key);
296 } else {
297 if (octx.prefix[octx.level -1].nb_elems)
298 avio_printf(probe_out, ", ");
299 else
300 AVP_INDENT();
301 }
302 avio_printf(probe_out, "%"PRId64, value);
303 }
304
305 static void json_escape_print(const char *s)
306 {
307 int i = 0;
308 char c = 0;
309
310 while (c = s[i++]) {
311 switch (c) {
312 case '\r': avio_printf(probe_out, "%s", "\\r"); break;
313 case '\n': avio_printf(probe_out, "%s", "\\n"); break;
314 case '\f': avio_printf(probe_out, "%s", "\\f"); break;
315 case '\b': avio_printf(probe_out, "%s", "\\b"); break;
316 case '\t': avio_printf(probe_out, "%s", "\\t"); break;
317 case '\\':
318 case '"' : avio_w8(probe_out, '\\');
319 default:
320 if ((unsigned char)c < 32)
321 avio_printf(probe_out, "\\u00%02x", c & 0xff);
322 else
323 avio_w8(probe_out, c);
324 break;
325 }
326 }
327 }
328
329 static void json_print_string(const char *key, const char *value)
330 {
331 if (octx.prefix[octx.level -1].nb_elems)
332 avio_printf(probe_out, ",\n");
333 AVP_INDENT();
334 avio_w8(probe_out, '\"');
335 json_escape_print(key);
336 avio_printf(probe_out, "\" : \"");
337 json_escape_print(value);
338 avio_w8(probe_out, '\"');
339 }
340
341 /*
342 * old-style pseudo-INI
343 */
344 static void old_print_object_header(const char *name)
345 {
346 char *str, *p;
347
348 if (!strcmp(name, "tags"))
349 return;
350
351 str = p = av_strdup(name);
352 if (!str)
353 return;
354 while (*p) {
355 *p = av_toupper(*p);
356 p++;
357 }
358
359 avio_printf(probe_out, "[%s]\n", str);
360 av_freep(&str);
361 }
362
363 static void old_print_object_footer(const char *name)
364 {
365 char *str, *p;
366
367 if (!strcmp(name, "tags"))
368 return;
369
370 str = p = av_strdup(name);
371 if (!str)
372 return;
373 while (*p) {
374 *p = av_toupper(*p);
375 p++;
376 }
377
378 avio_printf(probe_out, "[/%s]\n", str);
379 av_freep(&str);
380 }
381
382 static void old_print_string(const char *key, const char *value)
383 {
384 if (!strcmp(octx.prefix[octx.level - 1].name, "tags"))
385 avio_printf(probe_out, "TAG:");
386 ini_print_string(key, value);
387 }
388
389 /*
390 * Simple Formatter for single entries.
391 */
392
393 static void show_format_entry_integer(const char *key, int64_t value)
394 {
395 if (key && av_dict_get(fmt_entries_to_show, key, NULL, 0)) {
396 if (nb_fmt_entries_to_show > 1)
397 avio_printf(probe_out, "%s=", key);
398 avio_printf(probe_out, "%"PRId64"\n", value);
399 }
400 }
401
402 static void show_format_entry_string(const char *key, const char *value)
403 {
404 if (key && av_dict_get(fmt_entries_to_show, key, NULL, 0)) {
405 if (nb_fmt_entries_to_show > 1)
406 avio_printf(probe_out, "%s=", key);
407 avio_printf(probe_out, "%s\n", value);
408 }
409 }
410
411 static void show_stream_entry_header(const char *key, int value)
412 {
413 header_key = key;
414 }
415
416 static void show_stream_entry_footer(const char *key, int value)
417 {
418 header_key = NULL;
419 }
420
421 static void show_stream_entry_integer(const char *key, int64_t value)
422 {
423 if (!key)
424 key = header_key;
425
426 if (key && av_dict_get(stream_entries_to_show, key, NULL, 0)) {
427 if (nb_stream_entries_to_show > 1)
428 avio_printf(probe_out, "%s=", key);
429 avio_printf(probe_out, "%"PRId64"\n", value);
430 }
431 }
432
433 static void show_stream_entry_string(const char *key, const char *value)
434 {
435 if (key && av_dict_get(stream_entries_to_show, key, NULL, 0)) {
436 if (nb_stream_entries_to_show > 1)
437 avio_printf(probe_out, "%s=", key);
438 avio_printf(probe_out, "%s\n", value);
439 }
440 }
441
442 static void probe_group_enter(const char *name, int type)
443 {
444 int64_t count = -1;
445
446 octx.prefix =
447 av_realloc(octx.prefix, sizeof(PrintElement) * (octx.level + 1));
448
449 if (!octx.prefix || !name) {
450 fprintf(stderr, "Out of memory\n");
451 exit_program(1);
452 }
453
454 if (octx.level) {
455 PrintElement *parent = octx.prefix + octx.level -1;
456 if (parent->type == ARRAY)
457 count = parent->nb_elems;
458 parent->nb_elems++;
459 }
460
461 octx.prefix[octx.level++] = (PrintElement){name, type, count, 0};
462 }
463
464 static void probe_group_leave(void)
465 {
466 --octx.level;
467 }
468
469 static void probe_header(void)
470 {
471 if (octx.print_header)
472 octx.print_header();
473 probe_group_enter("root", OBJECT);
474 }
475
476 static void probe_footer(void)
477 {
478 if (octx.print_footer)
479 octx.print_footer();
480 probe_group_leave();
481 }
482
483
484 static void probe_array_header(const char *name, int plain_values)
485 {
486 if (octx.print_array_header)
487 octx.print_array_header(name, plain_values);
488
489 probe_group_enter(name, ARRAY);
490 }
491
492 static void probe_array_footer(const char *name, int plain_values)
493 {
494 probe_group_leave();
495 if (octx.print_array_footer)
496 octx.print_array_footer(name, plain_values);
497 }
498
499 static void probe_object_header(const char *name)
500 {
501 if (octx.print_object_header)
502 octx.print_object_header(name);
503
504 probe_group_enter(name, OBJECT);
505 }
506
507 static void probe_object_footer(const char *name)
508 {
509 probe_group_leave();
510 if (octx.print_object_footer)
511 octx.print_object_footer(name);
512 }
513
514 static void probe_int(const char *key, int64_t value)
515 {
516 octx.print_integer(key, value);
517 octx.prefix[octx.level -1].nb_elems++;
518 }
519
520 static void probe_str(const char *key, const char *value)
521 {
522 octx.print_string(key, value);
523 octx.prefix[octx.level -1].nb_elems++;
524 }
525
526 static void probe_dict(AVDictionary *dict, const char *name)
527 {
528 AVDictionaryEntry *entry = NULL;
529 if (!dict)
530 return;
531 probe_object_header(name);
532 while ((entry = av_dict_get(dict, "", entry, AV_DICT_IGNORE_SUFFIX))) {
533 probe_str(entry->key, entry->value);
534 }
535 probe_object_footer(name);
536 }
537
538 static char *value_string(char *buf, int buf_size, double val, const char *unit)
539 {
540 if (unit == unit_second_str && use_value_sexagesimal_format) {
541 double secs;
542 int hours, mins;
543 secs = val;
544 mins = (int)secs / 60;
545 secs = secs - mins * 60;
546 hours = mins / 60;
547 mins %= 60;
548 snprintf(buf, buf_size, "%d:%02d:%09.6f", hours, mins, secs);
549 } else if (use_value_prefix) {
550 const char *prefix_string;
551 int index;
552
553 if (unit == unit_byte_str && use_byte_value_binary_prefix) {
554 index = (int) log2(val) / 10;
555 index = av_clip(index, 0, FF_ARRAY_ELEMS(binary_unit_prefixes) - 1);
556 val /= pow(2, index * 10);
557 prefix_string = binary_unit_prefixes[index];
558 } else {
559 index = (int) (log10(val)) / 3;
560 index = av_clip(index, 0, FF_ARRAY_ELEMS(decimal_unit_prefixes) - 1);
561 val /= pow(10, index * 3);
562 prefix_string = decimal_unit_prefixes[index];
563 }
564 snprintf(buf, buf_size, "%.*f%s%s",
565 index ? 3 : 0, val,
566 prefix_string,
567 show_value_unit ? unit : "");
568 } else {
569 snprintf(buf, buf_size, "%f%s", val, show_value_unit ? unit : "");
570 }
571
572 return buf;
573 }
574
575 static char *time_value_string(char *buf, int buf_size, int64_t val,
576 const AVRational *time_base)
577 {
578 if (val == AV_NOPTS_VALUE) {
579 snprintf(buf, buf_size, "N/A");
580 } else {
581 value_string(buf, buf_size, val * av_q2d(*time_base), unit_second_str);
582 }
583
584 return buf;
585 }
586
587 static char *ts_value_string(char *buf, int buf_size, int64_t ts)
588 {
589 if (ts == AV_NOPTS_VALUE) {
590 snprintf(buf, buf_size, "N/A");
591 } else {
592 snprintf(buf, buf_size, "%"PRId64, ts);
593 }
594
595 return buf;
596 }
597
598 static char *rational_string(char *buf, int buf_size, const char *sep,
599 const AVRational *rat)
600 {
601 snprintf(buf, buf_size, "%d%s%d", rat->num, sep, rat->den);
602 return buf;
603 }
604
605 static char *tag_string(char *buf, int buf_size, int tag)
606 {
607 snprintf(buf, buf_size, "0x%04x", tag);
608 return buf;
609 }
610
611 static void show_packet(AVFormatContext *fmt_ctx, AVPacket *pkt)
612 {
613 char val_str[128];
614 AVStream *st = fmt_ctx->streams[pkt->stream_index];
615
616 probe_object_header("packet");
617 probe_str("codec_type", media_type_string(st->codecpar->codec_type));
618 probe_int("stream_index", pkt->stream_index);
619 probe_str("pts", ts_value_string(val_str, sizeof(val_str), pkt->pts));
620 probe_str("pts_time", time_value_string(val_str, sizeof(val_str),
621 pkt->pts, &st->time_base));
622 probe_str("dts", ts_value_string(val_str, sizeof(val_str), pkt->dts));
623 probe_str("dts_time", time_value_string(val_str, sizeof(val_str),
624 pkt->dts, &st->time_base));
625 probe_str("duration", ts_value_string(val_str, sizeof(val_str),
626 pkt->duration));
627 probe_str("duration_time", time_value_string(val_str, sizeof(val_str),
628 pkt->duration,
629 &st->time_base));
630 probe_str("size", value_string(val_str, sizeof(val_str),
631 pkt->size, unit_byte_str));
632 probe_int("pos", pkt->pos);
633 probe_str("flags", pkt->flags & AV_PKT_FLAG_KEY ? "K" : "_");
634 probe_object_footer("packet");
635 }
636
637 static void show_packets(InputFile *ifile)
638 {
639 AVFormatContext *fmt_ctx = ifile->fmt_ctx;
640 AVPacket pkt;
641
642 av_init_packet(&pkt);
643 probe_array_header("packets", 0);
644 while (!av_read_frame(fmt_ctx, &pkt)) {
645 show_packet(fmt_ctx, &pkt);
646 av_packet_unref(&pkt);
647 }
648 probe_array_footer("packets", 0);
649 }
650
651 static void show_stream(InputFile *ifile, InputStream *ist)
652 {
653 AVFormatContext *fmt_ctx = ifile->fmt_ctx;
654 AVStream *stream = ist->st;
655 AVCodecParameters *par;
656 AVCodecContext *dec_ctx;
657 const AVCodecDescriptor *codec_desc;
658 const char *profile;
659 char val_str[128];
660 AVRational display_aspect_ratio, *sar = NULL;
661 const AVPixFmtDescriptor *desc;
662
663 probe_object_header("stream");
664
665 probe_int("index", stream->index);
666
667 par = stream->codecpar;
668 dec_ctx = ist->dec_ctx;
669 codec_desc = avcodec_descriptor_get(par->codec_id);
670 if (codec_desc) {
671 probe_str("codec_name", codec_desc->name);
672 probe_str("codec_long_name", codec_desc->long_name);
673 } else {
674 probe_str("codec_name", "unknown");
675 }
676
677 probe_str("codec_type", media_type_string(par->codec_type));
678
679 /* print AVI/FourCC tag */
680 av_get_codec_tag_string(val_str, sizeof(val_str), par->codec_tag);
681 probe_str("codec_tag_string", val_str);
682 probe_str("codec_tag", tag_string(val_str, sizeof(val_str),
683 par->codec_tag));
684
685 /* print profile, if there is one */
686 profile = avcodec_profile_name(par->codec_id, par->profile);
687 if (profile)
688 probe_str("profile", profile);
689
690 switch (par->codec_type) {
691 case AVMEDIA_TYPE_VIDEO:
692 probe_int("width", par->width);
693 probe_int("height", par->height);
694 if (dec_ctx) {
695 probe_int("coded_width", dec_ctx->coded_width);
696 probe_int("coded_height", dec_ctx->coded_height);
697 probe_int("has_b_frames", dec_ctx->has_b_frames);
698 }
699 if (dec_ctx && dec_ctx->sample_aspect_ratio.num)
700 sar = &dec_ctx->sample_aspect_ratio;
701 else if (par->sample_aspect_ratio.num)
702 sar = &par->sample_aspect_ratio;
703 else if (stream->sample_aspect_ratio.num)
704 sar = &stream->sample_aspect_ratio;
705
706 if (sar) {
707 probe_str("sample_aspect_ratio",
708 rational_string(val_str, sizeof(val_str), ":", sar));
709 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
710 par->width * sar->num, par->height * sar->den,
711 1024*1024);
712 probe_str("display_aspect_ratio",
713 rational_string(val_str, sizeof(val_str), ":",
714 &display_aspect_ratio));
715 }
716 desc = av_pix_fmt_desc_get(par->format);
717 probe_str("pix_fmt", desc ? desc->name : "unknown");
718 probe_int("level", par->level);
719
720 probe_str("color_range", av_color_range_name (par->color_range));
721 probe_str("color_space", av_color_space_name (par->color_space));
722 probe_str("color_trc", av_color_transfer_name (par->color_trc));
723 probe_str("color_pri", av_color_primaries_name(par->color_primaries));
724 probe_str("chroma_loc", av_chroma_location_name (par->chroma_location));
725 break;
726
727 case AVMEDIA_TYPE_AUDIO:
728 probe_str("sample_rate",
729 value_string(val_str, sizeof(val_str),
730 par->sample_rate,
731 unit_hertz_str));
732 probe_int("channels", par->channels);
733 probe_int("bits_per_sample",
734 av_get_bits_per_sample(par->codec_id));
735 break;
736 }
737
738 if (fmt_ctx->iformat->flags & AVFMT_SHOW_IDS)
739 probe_int("id", stream->id);
740 probe_str("avg_frame_rate",
741 rational_string(val_str, sizeof(val_str), "/",
742 &stream->avg_frame_rate));
743
744 if (par->bit_rate)
745 probe_str("bit_rate",
746 value_string(val_str, sizeof(val_str),
747 par->bit_rate, unit_bit_per_second_str));
748 probe_str("time_base",
749 rational_string(val_str, sizeof(val_str), "/",
750 &stream->time_base));
751 probe_str("start_time",
752 time_value_string(val_str, sizeof(val_str),
753 stream->start_time, &stream->time_base));
754 probe_str("duration",
755 time_value_string(val_str, sizeof(val_str),
756 stream->duration, &stream->time_base));
757 if (stream->nb_frames)
758 probe_int("nb_frames", stream->nb_frames);
759
760 probe_dict(stream->metadata, "tags");
761
762 if (stream->nb_side_data) {
763 int i, j;
764
765 probe_object_header("sidedata");
766 for (i = 0; i < stream->nb_side_data; i++) {
767 const AVPacketSideData* sd = &stream->side_data[i];
768 AVStereo3D *stereo;
769
770 switch (sd->type) {
771 case AV_PKT_DATA_DISPLAYMATRIX:
772 probe_object_header("displaymatrix");
773 probe_array_header("matrix", 1);
774 for (j = 0; j < 9; j++)
775 probe_int(NULL, ((int32_t *)sd->data)[j]);
776 probe_array_footer("matrix", 1);
777 probe_int("rotation",
778 av_display_rotation_get((int32_t *)sd->data));
779 probe_object_footer("displaymatrix");
780 break;
781 case AV_PKT_DATA_STEREO3D:
782 stereo = (AVStereo3D *)sd->data;
783 probe_object_header("stereo3d");
784 probe_str("type", av_stereo3d_type_name(stereo->type));
785 probe_int("inverted",
786 !!(stereo->flags & AV_STEREO3D_FLAG_INVERT));
787 probe_object_footer("stereo3d");
788 break;
789 }
790 }
791 probe_object_footer("sidedata");
792 }
793
794 probe_object_footer("stream");
795 }
796
797 static void show_format(InputFile *ifile)
798 {
799 AVFormatContext *fmt_ctx = ifile->fmt_ctx;
800 char val_str[128];
801 int64_t size = fmt_ctx->pb ? avio_size(fmt_ctx->pb) : -1;
802
803 probe_object_header("format");
804 probe_str("filename", fmt_ctx->filename);
805 probe_int("nb_streams", fmt_ctx->nb_streams);
806 probe_str("format_name", fmt_ctx->iformat->name);
807 probe_str("format_long_name", fmt_ctx->iformat->long_name);
808 probe_str("start_time",
809 time_value_string(val_str, sizeof(val_str),
810 fmt_ctx->start_time, &AV_TIME_BASE_Q));
811 probe_str("duration",
812 time_value_string(val_str, sizeof(val_str),
813 fmt_ctx->duration, &AV_TIME_BASE_Q));
814 probe_str("size",
815 size >= 0 ? value_string(val_str, sizeof(val_str),
816 size, unit_byte_str)
817 : "unknown");
818 probe_str("bit_rate",
819 value_string(val_str, sizeof(val_str),
820 fmt_ctx->bit_rate, unit_bit_per_second_str));
821
822 probe_dict(fmt_ctx->metadata, "tags");
823
824 probe_object_footer("format");
825 }
826
827 static int open_input_file(InputFile *ifile, const char *filename)
828 {
829 int err, i;
830 AVFormatContext *fmt_ctx = NULL;
831 AVDictionaryEntry *t;
832
833 if ((err = avformat_open_input(&fmt_ctx, filename,
834 iformat, &format_opts)) < 0) {
835 print_error(filename, err);
836 return err;
837 }
838 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
839 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
840 return AVERROR_OPTION_NOT_FOUND;
841 }
842
843
844 /* fill the streams in the format context */
845 if ((err = avformat_find_stream_info(fmt_ctx, NULL)) < 0) {
846 print_error(filename, err);
847 return err;
848 }
849
850 av_dump_format(fmt_ctx, 0, filename, 0);
851
852 ifile->streams = av_mallocz_array(fmt_ctx->nb_streams,
853 sizeof(*ifile->streams));
854 if (!ifile->streams)
855 exit(1);
856 ifile->nb_streams = fmt_ctx->nb_streams;
857
858 /* bind a decoder to each input stream */
859 for (i = 0; i < fmt_ctx->nb_streams; i++) {
860 InputStream *ist = &ifile->streams[i];
861 AVStream *stream = fmt_ctx->streams[i];
862 AVCodec *codec;
863
864 ist->st = stream;
865
866 if (stream->codecpar->codec_id == AV_CODEC_ID_PROBE) {
867 fprintf(stderr, "Failed to probe codec for input stream %d\n",
868 stream->index);
869 continue;
870 }
871
872 codec = avcodec_find_decoder(stream->codecpar->codec_id);
873 if (!codec) {
874 fprintf(stderr,
875 "Unsupported codec with id %d for input stream %d\n",
876 stream->codecpar->codec_id, stream->index);
877 continue;
878 }
879
880 ist->dec_ctx = avcodec_alloc_context3(codec);
881 if (!ist->dec_ctx)
882 exit(1);
883
884 err = avcodec_parameters_to_context(ist->dec_ctx, stream->codecpar);
885 if (err < 0)
886 exit(1);
887
888 err = avcodec_open2(ist->dec_ctx, NULL, NULL);
889 if (err < 0) {
890 fprintf(stderr, "Error while opening codec for input stream %d\n",
891 stream->index);
892 exit(1);
893
894 }
895 }
896
897 ifile->fmt_ctx = fmt_ctx;
898 return 0;
899 }
900
901 static void close_input_file(InputFile *ifile)
902 {
903 int i;
904
905 /* close decoder for each stream */
906 for (i = 0; i < ifile->nb_streams; i++) {
907 InputStream *ist = &ifile->streams[i];
908
909 avcodec_free_context(&ist->dec_ctx);
910 }
911
912 av_freep(&ifile->streams);
913 ifile->nb_streams = 0;
914
915 avformat_close_input(&ifile->fmt_ctx);
916 }
917
918 static int probe_file(const char *filename)
919 {
920 InputFile ifile;
921 int ret, i;
922
923 ret = open_input_file(&ifile, filename);
924 if (ret < 0)
925 return ret;
926
927 if (do_show_format)
928 show_format(&ifile);
929
930 if (do_show_streams) {
931 probe_array_header("streams", 0);
932 for (i = 0; i < ifile.nb_streams; i++)
933 show_stream(&ifile, &ifile.streams[i]);
934 probe_array_footer("streams", 0);
935 }
936
937 if (do_show_packets)
938 show_packets(&ifile);
939
940 close_input_file(&ifile);
941 return 0;
942 }
943
944 static void show_usage(void)
945 {
946 printf("Simple multimedia streams analyzer\n");
947 printf("usage: %s [OPTIONS] [INPUT_FILE]\n", program_name);
948 printf("\n");
949 }
950
951 static int opt_format(void *optctx, const char *opt, const char *arg)
952 {
953 iformat = av_find_input_format(arg);
954 if (!iformat) {
955 fprintf(stderr, "Unknown input format: %s\n", arg);
956 return AVERROR(EINVAL);
957 }
958 return 0;
959 }
960
961 static int opt_output_format(void *optctx, const char *opt, const char *arg)
962 {
963
964 if (!strcmp(arg, "json")) {
965 octx.print_header = json_print_header;
966 octx.print_footer = json_print_footer;
967 octx.print_array_header = json_print_array_header;
968 octx.print_array_footer = json_print_array_footer;
969 octx.print_object_header = json_print_object_header;
970 octx.print_object_footer = json_print_object_footer;
971
972 octx.print_integer = json_print_integer;
973 octx.print_string = json_print_string;
974 } else if (!strcmp(arg, "ini")) {
975 octx.print_header = ini_print_header;
976 octx.print_footer = ini_print_footer;
977 octx.print_array_header = ini_print_array_header;
978 octx.print_array_footer = ini_print_array_footer;
979 octx.print_object_header = ini_print_object_header;
980
981 octx.print_integer = ini_print_integer;
982 octx.print_string = ini_print_string;
983 } else if (!strcmp(arg, "old")) {
984 octx.print_header = NULL;
985 octx.print_object_header = old_print_object_header;
986 octx.print_object_footer = old_print_object_footer;
987
988 octx.print_string = old_print_string;
989 } else {
990 av_log(NULL, AV_LOG_ERROR, "Unsupported formatter %s\n", arg);
991 return AVERROR(EINVAL);
992 }
993 return 0;
994 }
995
996 static int opt_show_format_entry(void *optctx, const char *opt, const char *arg)
997 {
998 do_show_format = 1;
999 nb_fmt_entries_to_show++;
1000 octx.print_header = NULL;
1001 octx.print_footer = NULL;
1002 octx.print_array_header = NULL;
1003 octx.print_array_footer = NULL;
1004 octx.print_object_header = NULL;
1005 octx.print_object_footer = NULL;
1006
1007 octx.print_integer = show_format_entry_integer;
1008 octx.print_string = show_format_entry_string;
1009 av_dict_set(&fmt_entries_to_show, arg, "", 0);
1010 return 0;
1011 }
1012
1013 static int opt_show_stream_entry(void *optctx, const char *opt, const char *arg)
1014 {
1015 do_show_streams = 1;
1016 nb_stream_entries_to_show++;
1017 octx.print_header = NULL;
1018 octx.print_footer = NULL;
1019 octx.print_array_header = show_stream_entry_header;
1020 octx.print_array_footer = show_stream_entry_footer;
1021 octx.print_object_header = NULL;
1022 octx.print_object_footer = NULL;
1023
1024 octx.print_integer = show_stream_entry_integer;
1025 octx.print_string = show_stream_entry_string;
1026 av_dict_set(&stream_entries_to_show, arg, "", 0);
1027 return 0;
1028 }
1029
1030 static void opt_input_file(void *optctx, const char *arg)
1031 {
1032 if (input_filename) {
1033 fprintf(stderr,
1034 "Argument '%s' provided as input filename, but '%s' was already specified.\n",
1035 arg, input_filename);
1036 exit_program(1);
1037 }
1038 if (!strcmp(arg, "-"))
1039 arg = "pipe:";
1040 input_filename = arg;
1041 }
1042
1043 void show_help_default(const char *opt, const char *arg)
1044 {
1045 av_log_set_callback(log_callback_help);
1046 show_usage();
1047 show_help_options(options, "Main options:", 0, 0, 0);
1048 printf("\n");
1049 show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM);
1050 }
1051
1052 static int opt_pretty(void *optctx, const char *opt, const char *arg)
1053 {
1054 show_value_unit = 1;
1055 use_value_prefix = 1;
1056 use_byte_value_binary_prefix = 1;
1057 use_value_sexagesimal_format = 1;
1058 return 0;
1059 }
1060
1061 static const OptionDef real_options[] = {
1062 #include "cmdutils_common_opts.h"
1063 { "f", HAS_ARG, {.func_arg = opt_format}, "force format", "format" },
1064 { "of", HAS_ARG, {.func_arg = opt_output_format}, "output the document either as ini or json", "output_format" },
1065 { "unit", OPT_BOOL, {&show_value_unit},
1066 "show unit of the displayed values" },
1067 { "prefix", OPT_BOOL, {&use_value_prefix},
1068 "use SI prefixes for the displayed values" },
1069 { "byte_binary_prefix", OPT_BOOL, {&use_byte_value_binary_prefix},
1070 "use binary prefixes for byte units" },
1071 { "sexagesimal", OPT_BOOL, {&use_value_sexagesimal_format},
1072 "use sexagesimal format HOURS:MM:SS.MICROSECONDS for time units" },
1073 { "pretty", 0, {.func_arg = opt_pretty},
1074 "prettify the format of displayed values, make it more human readable" },
1075 { "show_format", OPT_BOOL, {&do_show_format} , "show format/container info" },
1076 { "show_format_entry", HAS_ARG, {.func_arg = opt_show_format_entry},
1077 "show a particular entry from the format/container info", "entry" },
1078 { "show_packets", OPT_BOOL, {&do_show_packets}, "show packets info" },
1079 { "show_streams", OPT_BOOL, {&do_show_streams}, "show streams info" },
1080 { "show_stream_entry", HAS_ARG, {.func_arg = opt_show_stream_entry},
1081 "show a particular entry from all streams", "entry" },
1082 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {.func_arg = opt_default},
1083 "generic catch all option", "" },
1084 { NULL, },
1085 };
1086
1087 static int probe_buf_write(void *opaque, uint8_t *buf, int buf_size)
1088 {
1089 printf("%.*s", buf_size, buf);
1090 return 0;
1091 }
1092
1093 #define AVP_BUFFSIZE 4096
1094
1095 int main(int argc, char **argv)
1096 {
1097 int ret;
1098 uint8_t *buffer = av_malloc(AVP_BUFFSIZE);
1099
1100 if (!buffer)
1101 exit(1);
1102
1103 register_exit(avprobe_cleanup);
1104
1105 options = real_options;
1106 parse_loglevel(argc, argv, options);
1107 av_register_all();
1108 avformat_network_init();
1109 init_opts();
1110 #if CONFIG_AVDEVICE
1111 avdevice_register_all();
1112 #endif
1113
1114 show_banner();
1115
1116 octx.print_header = ini_print_header;
1117 octx.print_footer = ini_print_footer;
1118
1119 octx.print_array_header = ini_print_array_header;
1120 octx.print_array_footer = ini_print_array_footer;
1121 octx.print_object_header = ini_print_object_header;
1122
1123 octx.print_integer = ini_print_integer;
1124 octx.print_string = ini_print_string;
1125
1126 parse_options(NULL, argc, argv, options, opt_input_file);
1127
1128 if (!input_filename) {
1129 show_usage();
1130 fprintf(stderr, "You have to specify one input file.\n");
1131 fprintf(stderr,
1132 "Use -h to get full help or, even better, run 'man %s'.\n",
1133 program_name);
1134 exit_program(1);
1135 }
1136
1137 probe_out = avio_alloc_context(buffer, AVP_BUFFSIZE, 1, NULL, NULL,
1138 probe_buf_write, NULL);
1139 if (!probe_out)
1140 exit_program(1);
1141
1142 probe_header();
1143 ret = probe_file(input_filename);
1144 probe_footer();
1145 avio_flush(probe_out);
1146 av_freep(&probe_out);
1147 av_freep(&buffer);
1148 uninit_opts();
1149 avformat_network_deinit();
1150
1151 return ret;
1152 }