summaryrefslogtreecommitdiff
path: root/ffprobe.c
blob: f0669a475d15eb316d271e108e684576b9ab08f5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
/*
 * FFprobe : Simple Media Prober based on the FFmpeg libraries
 * Copyright (c) 2007-2010 Stefano Sabatini
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include "config.h"

#include "libavformat/avformat.h"
#include "libavcodec/avcodec.h"
#include "libavcodec/opt.h"
#include "libavutil/pixdesc.h"
#include "libavdevice/avdevice.h"
#include "cmdutils.h"

const char program_name[] = "FFprobe";
const int program_birth_year = 2007;

static int do_show_format  = 0;
static int do_show_streams = 0;

static int convert_tags                 = 0;
static int show_value_unit              = 0;
static int use_value_prefix             = 0;
static int use_byte_value_binary_prefix = 0;
static int use_value_sexagesimal_format = 0;

/* globals */
static const OptionDef options[];

/* FFprobe context */
static const char *input_filename;
static AVInputFormat *iformat = NULL;

static const char *binary_unit_prefixes [] = { "", "Ki", "Mi", "Gi", "Ti", "Pi" };
static const char *decimal_unit_prefixes[] = { "", "K" , "M" , "G" , "T" , "P"  };

static const char *unit_second_str          = "s"    ;
static const char *unit_hertz_str           = "Hz"   ;
static const char *unit_byte_str            = "byte" ;
static const char *unit_bit_per_second_str  = "bit/s";

static char *value_string(char *buf, int buf_size, double val, const char *unit)
{
    if (unit == unit_second_str && use_value_sexagesimal_format) {
        double secs;
        int hours, mins;
        secs  = val;
        mins  = (int)secs / 60;
        secs  = secs - mins * 60;
        hours = mins / 60;
        mins %= 60;
        snprintf(buf, buf_size, "%d:%02d:%09.6f", hours, mins, secs);
    } else if (use_value_prefix) {
        const char *prefix_string;
        int index;

        if (unit == unit_byte_str && use_byte_value_binary_prefix) {
            index = (int) (log(val)/log(2)) / 10;
            index = av_clip(index, 0, FF_ARRAY_ELEMS(binary_unit_prefixes) -1);
            val /= pow(2, index*10);
            prefix_string = binary_unit_prefixes[index];
        } else {
            index = (int) (log10(val)) / 3;
            index = av_clip(index, 0, FF_ARRAY_ELEMS(decimal_unit_prefixes) -1);
            val /= pow(10, index*3);
            prefix_string = decimal_unit_prefixes[index];
        }

        snprintf(buf, buf_size, "%.3f %s%s", val, prefix_string, show_value_unit ? unit : "");
    } else {
        snprintf(buf, buf_size, "%f %s", val, show_value_unit ? unit : "");
    }

    return buf;
}

static char *time_value_string(char *buf, int buf_size, int64_t val, const AVRational *time_base)
{
    if (val == AV_NOPTS_VALUE) {
        snprintf(buf, buf_size, "N/A");
    } else {
        value_string(buf, buf_size, val * av_q2d(*time_base), unit_second_str);
    }

    return buf;
}

static const char *media_type_string(enum AVMediaType media_type)
{
    switch (media_type) {
    case AVMEDIA_TYPE_VIDEO:      return "video";
    case AVMEDIA_TYPE_AUDIO:      return "audio";
    case AVMEDIA_TYPE_DATA:       return "data";
    case AVMEDIA_TYPE_SUBTITLE:   return "subtitle";
    case AVMEDIA_TYPE_ATTACHMENT: return "attachment";
    default:                      return "unknown";
    }
}

static void show_stream(AVFormatContext *fmt_ctx, int stream_idx)
{
    AVStream *stream = fmt_ctx->streams[stream_idx];
    AVCodecContext *dec_ctx;
    AVCodec *dec;
    char val_str[128];
    AVMetadataTag *tag = NULL;
    char a, b, c, d;

    printf("[STREAM]\n");

    printf("index=%d\n",        stream->index);

    if ((dec_ctx = stream->codec)) {
        if ((dec = dec_ctx->codec)) {
            printf("codec_name=%s\n",         dec->name);
            printf("codec_long_name=%s\n",    dec->long_name);
        } else {
            printf("codec_name=unknown\n");
        }

        printf("codec_type=%s\n",         media_type_string(dec_ctx->codec_type));
        printf("codec_time_base=%d/%d\n", dec_ctx->time_base.num, dec_ctx->time_base.den);

        /* print AVI/FourCC tag */
        a = dec_ctx->codec_tag     & 0xff;
        b = dec_ctx->codec_tag>>8  & 0xff;
        c = dec_ctx->codec_tag>>16 & 0xff;
        d = dec_ctx->codec_tag>>24 & 0xff;
        printf("codec_tag_string=");
        if (isprint(a)) printf("%c", a); else printf("[%d]", a);
        if (isprint(b)) printf("%c", b); else printf("[%d]", b);
        if (isprint(c)) printf("%c", c); else printf("[%d]", c);
        if (isprint(d)) printf("%c", d); else printf("[%d]", d);
        printf("\ncodec_tag=0x%04x\n", dec_ctx->codec_tag);

        switch (dec_ctx->codec_type) {
        case AVMEDIA_TYPE_VIDEO:
            printf("width=%d\n",                   dec_ctx->width);
            printf("height=%d\n",                  dec_ctx->height);
            printf("has_b_frames=%d\n",            dec_ctx->has_b_frames);
            printf("sample_aspect_ratio=%d:%d\n",  dec_ctx->sample_aspect_ratio.num,
                                                   dec_ctx->sample_aspect_ratio.den);
            printf("display_aspect_ratio=%d:%d\n", dec_ctx->sample_aspect_ratio.num,
                                                   dec_ctx->sample_aspect_ratio.den);
            printf("pix_fmt=%s\n",                 dec_ctx->pix_fmt != PIX_FMT_NONE ?
                   av_pix_fmt_descriptors[dec_ctx->pix_fmt].name : "unknown");
            break;

        case AVMEDIA_TYPE_AUDIO:
            printf("sample_rate=%s\n",             value_string(val_str, sizeof(val_str),
                                                                dec_ctx->sample_rate,
                                                                unit_hertz_str));
            printf("channels=%d\n",                dec_ctx->channels);
            printf("bits_per_sample=%d\n",         av_get_bits_per_sample(dec_ctx->codec_id));
            break;
        }
    } else {
        printf("codec_type=unknown\n");
    }

    if (fmt_ctx->iformat->flags & AVFMT_SHOW_IDS)
        printf("id=0x%x\n", stream->id);
    printf("r_frame_rate=%d/%d\n",         stream->r_frame_rate.num,   stream->r_frame_rate.den);
    printf("avg_frame_rate=%d/%d\n",       stream->avg_frame_rate.num, stream->avg_frame_rate.den);
    printf("time_base=%d/%d\n",            stream->time_base.num,      stream->time_base.den);
    if (stream->language[0])
        printf("language=%s\n",            stream->language);
    printf("start_time=%s\n",   time_value_string(val_str, sizeof(val_str), stream->start_time,
                                                  &stream->time_base));
    printf("duration=%s\n",     time_value_string(val_str, sizeof(val_str), stream->duration,
                                                  &stream->time_base));

    while ((tag = av_metadata_get(stream->metadata, "", tag, AV_METADATA_IGNORE_SUFFIX)))
        printf("TAG:%s=%s\n", tag->key, tag->value);

    printf("[/STREAM]\n");
}

static void show_format(AVFormatContext *fmt_ctx)
{
    AVMetadataTag *tag = NULL;
    char val_str[128];

    printf("[FORMAT]\n");

    printf("filename=%s\n",         fmt_ctx->filename);
    printf("nb_streams=%d\n",       fmt_ctx->nb_streams);
    printf("format_name=%s\n",      fmt_ctx->iformat->name);
    printf("format_long_name=%s\n", fmt_ctx->iformat->long_name);
    printf("start_time=%s\n",       time_value_string(val_str, sizeof(val_str), fmt_ctx->start_time,
                                                      &AV_TIME_BASE_Q));
    printf("duration=%s\n",         time_value_string(val_str, sizeof(val_str), fmt_ctx->duration,
                                                      &AV_TIME_BASE_Q));
    printf("size=%s\n",             value_string(val_str, sizeof(val_str), fmt_ctx->file_size,
                                                 unit_byte_str));
    printf("bit_rate=%s\n",         value_string(val_str, sizeof(val_str), fmt_ctx->bit_rate,
                                                 unit_bit_per_second_str));

    if (convert_tags)
        av_metadata_conv(fmt_ctx, NULL, fmt_ctx->iformat->metadata_conv);
    while ((tag = av_metadata_get(fmt_ctx->metadata, "", tag, AV_METADATA_IGNORE_SUFFIX)))
        printf("TAG:%s=%s\n", tag->key, tag->value);

    printf("[/FORMAT]\n");
}

static int open_input_file(AVFormatContext **fmt_ctx_ptr, const char *filename)
{
    int err, i;
    AVFormatContext *fmt_ctx;

    fmt_ctx = avformat_alloc_context();

    if ((err = av_open_input_file(&fmt_ctx, filename, iformat, 0, NULL)) < 0) {
        print_error(filename, err);
        return err;
    }

    /* fill the streams in the format context */
    if ((err = av_find_stream_info(fmt_ctx)) < 0) {
        print_error(filename, err);
        return err;
    }

    dump_format(fmt_ctx, 0, filename, 0);

    /* bind a decoder to each input stream */
    for (i = 0; i < fmt_ctx->nb_streams; i++) {
        AVStream *stream = fmt_ctx->streams[i];
        AVCodec *codec;

        if (!(codec = avcodec_find_decoder(stream->codec->codec_id))) {
            fprintf(stderr, "Unsupported codec (id=%d) for input stream %d\n",
                    stream->codec->codec_id, stream->index);
        } else if (avcodec_open(stream->codec, codec) < 0) {
            fprintf(stderr, "Error while opening codec for input stream %d\n",
                    stream->index);
        }
    }

    *fmt_ctx_ptr = fmt_ctx;
    return 0;
}

static int probe_file(const char *filename)
{
    AVFormatContext *fmt_ctx;
    int ret, i;

    if ((ret = open_input_file(&fmt_ctx, filename)))
        return ret;

    if (do_show_streams)
        for (i = 0; i < fmt_ctx->nb_streams; i++)
            show_stream(fmt_ctx, i);

    if (do_show_format)
        show_format(fmt_ctx);

    av_close_input_file(fmt_ctx);
    return 0;
}

static void show_usage(void)
{
    printf("Simple multimedia streams analyzer\n");
    printf("usage: ffprobe [OPTIONS] [INPUT_FILE]\n");
    printf("\n");
}

static void opt_format(const char *arg)
{
    iformat = av_find_input_format(arg);
    if (!iformat) {
        fprintf(stderr, "Unknown input format: %s\n", arg);
        exit(1);
    }
}

static void opt_input_file(const char *arg)
{
    if (input_filename) {
        fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
                arg, input_filename);
        exit(1);
    }
    if (!strcmp(arg, "-"))
        arg = "pipe:";
    input_filename = arg;
}

static void show_help(void)
{
    show_usage();
    show_help_options(options, "Main options:\n", 0, 0);
    printf("\n");
}

static void opt_pretty(void)
{
    show_value_unit              = 1;
    use_value_prefix             = 1;
    use_byte_value_binary_prefix = 1;
    use_value_sexagesimal_format = 1;
}

static const OptionDef options[] = {
#include "cmdutils_common_opts.h"
    { "convert_tags", OPT_BOOL, {(void*)&convert_tags}, "convert tag names to the FFmpeg generic tag names" },
    { "f", HAS_ARG, {(void*)opt_format}, "force format", "format" },
    { "unit", OPT_BOOL, {(void*)&show_value_unit}, "show unit of the displayed values" },
    { "prefix", OPT_BOOL, {(void*)&use_value_prefix}, "use SI prefixes for the displayed values" },
    { "byte_binary_prefix", OPT_BOOL, {(void*)&use_byte_value_binary_prefix},
      "use binary prefixes for byte units" },
    { "sexagesimal", OPT_BOOL,  {(void*)&use_value_sexagesimal_format},
      "use sexagesimal format HOURS:MM:SS.MICROSECONDS for time units" },
    { "pretty", 0, {(void*)&opt_pretty},
      "prettify the format of displayed values, make it more human readable" },
    { "show_format",  OPT_BOOL, {(void*)&do_show_format} , "show format/container info" },
    { "show_streams", OPT_BOOL, {(void*)&do_show_streams}, "show streams info" },
    { NULL, },
};

int main(int argc, char **argv)
{
    av_register_all();
#if CONFIG_AVDEVICE
    avdevice_register_all();
#endif

    show_banner();
    parse_options(argc, argv, options, opt_input_file);

    if (!input_filename) {
        show_usage();
        fprintf(stderr, "You have to specify one input file.\n");
        fprintf(stderr, "Use -h to get full help or, even better, run 'man ffprobe'.\n");
        exit(1);
    }

    return probe_file(input_filename);
}