2 * avprobe : Simple Media Prober based on the Libav libraries
3 * Copyright (c) 2007-2010 Stefano Sabatini
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
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"
36 typedef struct InputStream
{
39 AVCodecContext
*dec_ctx
;
42 typedef struct InputFile
{
43 AVFormatContext
*fmt_ctx
;
49 const char program_name
[] = "avprobe";
50 const int program_birth_year
= 2007;
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
;
60 /* key used to print when probe_{int,str}(NULL, ..) is invoked */
61 static const char *header_key
;
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;
69 static const OptionDef
*options
;
72 static const char *input_filename
;
73 static AVInputFormat
*iformat
= NULL
;
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" };
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";
83 static void avprobe_cleanup(int ret
)
85 av_dict_free(&fmt_entries_to_show
);
86 av_dict_free(&stream_entries_to_show
);
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.
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).
98 * Within an array each element can need an unique identifier or an index.
100 * Nesting level is accounted separately.
108 typedef struct PrintElement
{
110 PrintElementType type
;
115 typedef struct PrintContext
{
116 PrintElement
*prefix
;
118 void (*print_header
)(void);
119 void (*print_footer
)(void);
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
);
126 void (*print_integer
) (const char *key
, int64_t value
);
127 void (*print_string
) (const char *key
, const char *value
);
130 static AVIOContext
*probe_out
= NULL
;
131 static PrintContext octx
;
132 #define AVP_INDENT() avio_printf(probe_out, "%*c", octx.level * 2, ' ')
135 * Default format, INI
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
146 static void ini_print_header(void)
148 avio_printf(probe_out
, "# avprobe output\n\n");
150 static void ini_print_footer(void)
152 avio_w8(probe_out
, '\n');
155 static void ini_escape_print(const char *s
)
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;
170 case ':' : avio_w8(probe_out
, '\\');
172 if ((unsigned char)c
< 32)
173 avio_printf(probe_out
, "\\x00%02x", c
& 0xff);
175 avio_w8(probe_out
, c
);
181 static void ini_print_array_header(const char *name
, int 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");
188 ini_escape_print(name
);
189 avio_w8(probe_out
, '=');
193 static void ini_print_array_footer(const char *name
, int plain_values
)
196 avio_printf(probe_out
, "\n");
199 static void ini_print_object_header(const char *name
)
202 PrintElement
*el
= octx
.prefix
+ octx
.level
-1;
205 avio_printf(probe_out
, "\n");
207 avio_printf(probe_out
, "[");
209 for (i
= 1; i
< octx
.level
; i
++) {
210 el
= octx
.prefix
+ i
;
211 avio_printf(probe_out
, "%s.", el
->name
);
213 avio_printf(probe_out
, "%"PRId64
".", el
->index
);
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");
222 static void ini_print_integer(const char *key
, int64_t value
)
225 ini_escape_print(key
);
226 avio_printf(probe_out
, "=%"PRId64
"\n", value
);
228 if (octx
.prefix
[octx
.level
-1].nb_elems
)
229 avio_printf(probe_out
, ",");
230 avio_printf(probe_out
, "%"PRId64
, value
);
235 static void ini_print_string(const char *key
, const char *value
)
237 ini_escape_print(key
);
238 avio_printf(probe_out
, "=");
239 ini_escape_print(value
);
240 avio_w8(probe_out
, '\n');
244 * Alternate format, JSON
247 static void json_print_header(void)
249 avio_printf(probe_out
, "{");
251 static void json_print_footer(void)
253 avio_printf(probe_out
, "}\n");
256 static void json_print_array_header(const char *name
, int plain_values
)
258 if (octx
.prefix
[octx
.level
-1].nb_elems
)
259 avio_printf(probe_out
, ",\n");
261 avio_printf(probe_out
, "\"%s\" : ", name
);
262 avio_printf(probe_out
, "[\n");
265 static void json_print_array_footer(const char *name
, int plain_values
)
267 avio_printf(probe_out
, "\n");
269 avio_printf(probe_out
, "]");
272 static void json_print_object_header(const char *name
)
274 if (octx
.prefix
[octx
.level
-1].nb_elems
)
275 avio_printf(probe_out
, ",\n");
277 if (octx
.prefix
[octx
.level
-1].type
== OBJECT
)
278 avio_printf(probe_out
, "\"%s\" : ", name
);
279 avio_printf(probe_out
, "{\n");
282 static void json_print_object_footer(const char *name
)
284 avio_printf(probe_out
, "\n");
286 avio_printf(probe_out
, "}");
289 static void json_print_integer(const char *key
, int64_t value
)
292 if (octx
.prefix
[octx
.level
-1].nb_elems
)
293 avio_printf(probe_out
, ",\n");
295 avio_printf(probe_out
, "\"%s\" : ", key
);
297 if (octx
.prefix
[octx
.level
-1].nb_elems
)
298 avio_printf(probe_out
, ", ");
302 avio_printf(probe_out
, "%"PRId64
, value
);
305 static void json_escape_print(const char *s
)
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;
318 case '"' : avio_w8(probe_out
, '\\');
320 if ((unsigned char)c
< 32)
321 avio_printf(probe_out
, "\\u00%02x", c
& 0xff);
323 avio_w8(probe_out
, c
);
329 static void json_print_string(const char *key
, const char *value
)
331 if (octx
.prefix
[octx
.level
-1].nb_elems
)
332 avio_printf(probe_out
, ",\n");
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
, '\"');
342 * old-style pseudo-INI
344 static void old_print_object_header(const char *name
)
348 if (!strcmp(name
, "tags"))
351 str
= p
= av_strdup(name
);
359 avio_printf(probe_out
, "[%s]\n", str
);
363 static void old_print_object_footer(const char *name
)
367 if (!strcmp(name
, "tags"))
370 str
= p
= av_strdup(name
);
378 avio_printf(probe_out
, "[/%s]\n", str
);
382 static void old_print_string(const char *key
, const char *value
)
384 if (!strcmp(octx
.prefix
[octx
.level
- 1].name
, "tags"))
385 avio_printf(probe_out
, "TAG:");
386 ini_print_string(key
, value
);
390 * Simple Formatter for single entries.
393 static void show_format_entry_integer(const char *key
, int64_t value
)
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
);
402 static void show_format_entry_string(const char *key
, const char *value
)
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
);
411 static void show_stream_entry_header(const char *key
, int value
)
416 static void show_stream_entry_footer(const char *key
, int value
)
421 static void show_stream_entry_integer(const char *key
, int64_t value
)
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
);
433 static void show_stream_entry_string(const char *key
, const char *value
)
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
);
442 static void probe_group_enter(const char *name
, int type
)
447 av_realloc(octx
.prefix
, sizeof(PrintElement
) * (octx
.level
+ 1));
449 if (!octx
.prefix
|| !name
) {
450 fprintf(stderr
, "Out of memory\n");
455 PrintElement
*parent
= octx
.prefix
+ octx
.level
-1;
456 if (parent
->type
== ARRAY
)
457 count
= parent
->nb_elems
;
461 octx
.prefix
[octx
.level
++] = (PrintElement
){name
, type
, count
, 0};
464 static void probe_group_leave(void)
469 static void probe_header(void)
471 if (octx
.print_header
)
473 probe_group_enter("root", OBJECT
);
476 static void probe_footer(void)
478 if (octx
.print_footer
)
484 static void probe_array_header(const char *name
, int plain_values
)
486 if (octx
.print_array_header
)
487 octx
.print_array_header(name
, plain_values
);
489 probe_group_enter(name
, ARRAY
);
492 static void probe_array_footer(const char *name
, int plain_values
)
495 if (octx
.print_array_footer
)
496 octx
.print_array_footer(name
, plain_values
);
499 static void probe_object_header(const char *name
)
501 if (octx
.print_object_header
)
502 octx
.print_object_header(name
);
504 probe_group_enter(name
, OBJECT
);
507 static void probe_object_footer(const char *name
)
510 if (octx
.print_object_footer
)
511 octx
.print_object_footer(name
);
514 static void probe_int(const char *key
, int64_t value
)
516 octx
.print_integer(key
, value
);
517 octx
.prefix
[octx
.level
-1].nb_elems
++;
520 static void probe_str(const char *key
, const char *value
)
522 octx
.print_string(key
, value
);
523 octx
.prefix
[octx
.level
-1].nb_elems
++;
526 static void probe_dict(AVDictionary
*dict
, const char *name
)
528 AVDictionaryEntry
*entry
= NULL
;
531 probe_object_header(name
);
532 while ((entry
= av_dict_get(dict
, "", entry
, AV_DICT_IGNORE_SUFFIX
))) {
533 probe_str(entry
->key
, entry
->value
);
535 probe_object_footer(name
);
538 static char *value_string(char *buf
, int buf_size
, double val
, const char *unit
)
540 if (unit
== unit_second_str
&& use_value_sexagesimal_format
) {
544 mins
= (int)secs
/ 60;
545 secs
= secs
- 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
;
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
];
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
];
564 snprintf(buf
, buf_size
, "%.*f%s%s",
567 show_value_unit ? unit
: "");
569 snprintf(buf
, buf_size
, "%f%s", val
, show_value_unit ? unit
: "");
575 static char *time_value_string(char *buf
, int buf_size
, int64_t val
,
576 const AVRational
*time_base
)
578 if (val
== AV_NOPTS_VALUE
) {
579 snprintf(buf
, buf_size
, "N/A");
581 value_string(buf
, buf_size
, val
* av_q2d(*time_base
), unit_second_str
);
587 static char *ts_value_string(char *buf
, int buf_size
, int64_t ts
)
589 if (ts
== AV_NOPTS_VALUE
) {
590 snprintf(buf
, buf_size
, "N/A");
592 snprintf(buf
, buf_size
, "%"PRId64
, ts
);
598 static char *rational_string(char *buf
, int buf_size
, const char *sep
,
599 const AVRational
*rat
)
601 snprintf(buf
, buf_size
, "%d%s%d", rat
->num
, sep
, rat
->den
);
605 static char *tag_string(char *buf
, int buf_size
, int tag
)
607 snprintf(buf
, buf_size
, "0x%04x", tag
);
611 static void show_packet(AVFormatContext
*fmt_ctx
, AVPacket
*pkt
)
614 AVStream
*st
= fmt_ctx
->streams
[pkt
->stream_index
];
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
),
627 probe_str("duration_time", time_value_string(val_str
, sizeof(val_str
),
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");
637 static void show_packets(InputFile
*ifile
)
639 AVFormatContext
*fmt_ctx
= ifile
->fmt_ctx
;
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
);
648 probe_array_footer("packets", 0);
651 static void show_stream(InputFile
*ifile
, InputStream
*ist
)
653 AVFormatContext
*fmt_ctx
= ifile
->fmt_ctx
;
654 AVStream
*stream
= ist
->st
;
655 AVCodecParameters
*par
;
656 AVCodecContext
*dec_ctx
;
657 const AVCodecDescriptor
*codec_desc
;
660 AVRational display_aspect_ratio
, *sar
= NULL
;
661 const AVPixFmtDescriptor
*desc
;
663 probe_object_header("stream");
665 probe_int("index", stream
->index
);
667 par
= stream
->codecpar
;
668 dec_ctx
= ist
->dec_ctx
;
669 codec_desc
= avcodec_descriptor_get(par
->codec_id
);
671 probe_str("codec_name", codec_desc
->name
);
672 probe_str("codec_long_name", codec_desc
->long_name
);
674 probe_str("codec_name", "unknown");
677 probe_str("codec_type", media_type_string(par
->codec_type
));
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
),
685 /* print profile, if there is one */
686 profile
= avcodec_profile_name(par
->codec_id
, par
->profile
);
688 probe_str("profile", profile
);
690 switch (par
->codec_type
) {
691 case AVMEDIA_TYPE_VIDEO
:
692 probe_int("width", par
->width
);
693 probe_int("height", par
->height
);
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
);
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
;
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
,
712 probe_str("display_aspect_ratio",
713 rational_string(val_str
, sizeof(val_str
), ":",
714 &display_aspect_ratio
));
716 desc
= av_pix_fmt_desc_get(par
->format
);
717 probe_str("pix_fmt", desc ? desc
->name
: "unknown");
718 probe_int("level", par
->level
);
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
));
727 case AVMEDIA_TYPE_AUDIO
:
728 probe_str("sample_rate",
729 value_string(val_str
, sizeof(val_str
),
732 probe_int("channels", par
->channels
);
733 probe_int("bits_per_sample",
734 av_get_bits_per_sample(par
->codec_id
));
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
));
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
);
760 probe_dict(stream
->metadata
, "tags");
762 if (stream
->nb_side_data
) {
765 probe_object_header("sidedata");
766 for (i
= 0; i
< stream
->nb_side_data
; i
++) {
767 const AVPacketSideData
* sd
= &stream
->side_data
[i
];
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");
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");
791 probe_object_footer("sidedata");
794 probe_object_footer("stream");
797 static void show_format(InputFile
*ifile
)
799 AVFormatContext
*fmt_ctx
= ifile
->fmt_ctx
;
801 int64_t size
= fmt_ctx
->pb ?
avio_size(fmt_ctx
->pb
) : -1;
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
));
815 size
>= 0 ?
value_string(val_str
, sizeof(val_str
),
818 probe_str("bit_rate",
819 value_string(val_str
, sizeof(val_str
),
820 fmt_ctx
->bit_rate
, unit_bit_per_second_str
));
822 probe_dict(fmt_ctx
->metadata
, "tags");
824 probe_object_footer("format");
827 static int open_input_file(InputFile
*ifile
, const char *filename
)
830 AVFormatContext
*fmt_ctx
= NULL
;
831 AVDictionaryEntry
*t
;
833 if ((err
= avformat_open_input(&fmt_ctx
, filename
,
834 iformat
, &format_opts
)) < 0) {
835 print_error(filename
, err
);
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
;
844 /* fill the streams in the format context */
845 if ((err
= avformat_find_stream_info(fmt_ctx
, NULL
)) < 0) {
846 print_error(filename
, err
);
850 av_dump_format(fmt_ctx
, 0, filename
, 0);
852 ifile
->streams
= av_mallocz_array(fmt_ctx
->nb_streams
,
853 sizeof(*ifile
->streams
));
856 ifile
->nb_streams
= fmt_ctx
->nb_streams
;
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
];
866 if (stream
->codecpar
->codec_id
== AV_CODEC_ID_PROBE
) {
867 fprintf(stderr
, "Failed to probe codec for input stream %d\n",
872 codec
= avcodec_find_decoder(stream
->codecpar
->codec_id
);
875 "Unsupported codec with id %d for input stream %d\n",
876 stream
->codecpar
->codec_id
, stream
->index
);
880 ist
->dec_ctx
= avcodec_alloc_context3(codec
);
884 err
= avcodec_parameters_to_context(ist
->dec_ctx
, stream
->codecpar
);
888 err
= avcodec_open2(ist
->dec_ctx
, NULL
, NULL
);
890 fprintf(stderr
, "Error while opening codec for input stream %d\n",
897 ifile
->fmt_ctx
= fmt_ctx
;
901 static void close_input_file(InputFile
*ifile
)
905 /* close decoder for each stream */
906 for (i
= 0; i
< ifile
->nb_streams
; i
++) {
907 InputStream
*ist
= &ifile
->streams
[i
];
909 avcodec_free_context(&ist
->dec_ctx
);
912 av_freep(&ifile
->streams
);
913 ifile
->nb_streams
= 0;
915 avformat_close_input(&ifile
->fmt_ctx
);
918 static int probe_file(const char *filename
)
923 ret
= open_input_file(&ifile
, filename
);
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);
938 show_packets(&ifile
);
940 close_input_file(&ifile
);
944 static void show_usage(void)
946 printf("Simple multimedia streams analyzer\n");
947 printf("usage: %s [OPTIONS] [INPUT_FILE]\n", program_name
);
951 static int opt_format(void *optctx
, const char *opt
, const char *arg
)
953 iformat
= av_find_input_format(arg
);
955 fprintf(stderr
, "Unknown input format: %s\n", arg
);
956 return AVERROR(EINVAL
);
961 static int opt_output_format(void *optctx
, const char *opt
, const char *arg
)
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
;
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
;
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
;
988 octx
.print_string
= old_print_string
;
990 av_log(NULL
, AV_LOG_ERROR
, "Unsupported formatter %s\n", arg
);
991 return AVERROR(EINVAL
);
996 static int opt_show_format_entry(void *optctx
, const char *opt
, const char *arg
)
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
;
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);
1013 static int opt_show_stream_entry(void *optctx
, const char *opt
, const char *arg
)
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
;
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);
1030 static void opt_input_file(void *optctx
, const char *arg
)
1032 if (input_filename
) {
1034 "Argument '%s' provided as input filename, but '%s' was already specified.\n",
1035 arg
, input_filename
);
1038 if (!strcmp(arg
, "-"))
1040 input_filename
= arg
;
1043 void show_help_default(const char *opt
, const char *arg
)
1045 av_log_set_callback(log_callback_help
);
1047 show_help_options(options
, "Main options:", 0, 0, 0);
1049 show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM
);
1052 static int opt_pretty(void *optctx
, const char *opt
, const char *arg
)
1054 show_value_unit
= 1;
1055 use_value_prefix
= 1;
1056 use_byte_value_binary_prefix
= 1;
1057 use_value_sexagesimal_format
= 1;
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", "" },
1087 static int probe_buf_write(void *opaque
, uint8_t *buf
, int buf_size
)
1089 printf("%.*s", buf_size
, buf
);
1093 #define AVP_BUFFSIZE 4096
1095 int main(int argc
, char **argv
)
1098 uint8_t *buffer
= av_malloc(AVP_BUFFSIZE
);
1103 register_exit(avprobe_cleanup
);
1105 options
= real_options
;
1106 parse_loglevel(argc
, argv
, options
);
1108 avformat_network_init();
1111 avdevice_register_all();
1116 octx
.print_header
= ini_print_header
;
1117 octx
.print_footer
= ini_print_footer
;
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
;
1123 octx
.print_integer
= ini_print_integer
;
1124 octx
.print_string
= ini_print_string
;
1126 parse_options(NULL
, argc
, argv
, options
, opt_input_file
);
1128 if (!input_filename
) {
1130 fprintf(stderr
, "You have to specify one input file.\n");
1132 "Use -h to get full help or, even better, run 'man %s'.\n",
1137 probe_out
= avio_alloc_context(buffer
, AVP_BUFFSIZE
, 1, NULL
, NULL
,
1138 probe_buf_write
, NULL
);
1143 ret
= probe_file(input_filename
);
1145 avio_flush(probe_out
);
1146 av_freep(&probe_out
);
1149 avformat_network_deinit();