ffprobe.c 14.5 KB
Newer Older
Stefano Sabatini's avatar
Stefano Sabatini committed
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
/*
 * 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
 */

22 23
#include "config.h"

Stefano Sabatini's avatar
Stefano Sabatini committed
24 25 26 27
#include "libavformat/avformat.h"
#include "libavcodec/avcodec.h"
#include "libavcodec/opt.h"
#include "libavutil/pixdesc.h"
28
#include "libavdevice/avdevice.h"
Stefano Sabatini's avatar
Stefano Sabatini committed
29 30 31 32 33 34
#include "cmdutils.h"

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

static int do_show_format  = 0;
35
static int do_show_packets = 0;
Stefano Sabatini's avatar
Stefano Sabatini committed
36 37 38 39 40 41 42 43 44 45 46 47
static int do_show_streams = 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;
48
static AVInputFormat *iformat = NULL;
Stefano Sabatini's avatar
Stefano Sabatini committed
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

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) {
74
            index = (int) (log(val)/log(2)) / 10;
Stefano Sabatini's avatar
Stefano Sabatini committed
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
            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;
}

104 105 106 107 108 109 110 111 112 113 114
static char *ts_value_string (char *buf, int buf_size, int64_t ts)
{
    if (ts == AV_NOPTS_VALUE) {
        snprintf(buf, buf_size, "N/A");
    } else {
        snprintf(buf, buf_size, "%"PRId64, ts);
    }

    return buf;
}

115
static const char *media_type_string(enum AVMediaType media_type)
Stefano Sabatini's avatar
Stefano Sabatini committed
116
{
117 118 119 120 121 122
    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";
Stefano Sabatini's avatar
Stefano Sabatini committed
123 124 125 126
    default:                      return "unknown";
    }
}

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
static void show_packet(AVFormatContext *fmt_ctx, AVPacket *pkt)
{
    char val_str[128];
    AVStream *st = fmt_ctx->streams[pkt->stream_index];

    printf("[PACKET]\n");
    printf("codec_type=%s\n"   , media_type_string(st->codec->codec_type));
    printf("stream_index=%d\n" , pkt->stream_index);
    printf("pts=%s\n"          , ts_value_string  (val_str, sizeof(val_str), pkt->pts));
    printf("pts_time=%s\n"     , time_value_string(val_str, sizeof(val_str), pkt->pts, &st->time_base));
    printf("dts=%s\n"          , ts_value_string  (val_str, sizeof(val_str), pkt->dts));
    printf("dts_time=%s\n"     , time_value_string(val_str, sizeof(val_str), pkt->dts, &st->time_base));
    printf("duration=%s\n"     , ts_value_string  (val_str, sizeof(val_str), pkt->duration));
    printf("duration_time=%s\n", time_value_string(val_str, sizeof(val_str), pkt->duration, &st->time_base));
    printf("size=%s\n"         , value_string     (val_str, sizeof(val_str), pkt->size, unit_byte_str));
    printf("pos=%"PRId64"\n"   , pkt->pos);
    printf("flags=%c\n"        , pkt->flags & AV_PKT_FLAG_KEY ? 'K' : '_');
    printf("[/PACKET]\n");
}

static void show_packets(AVFormatContext *fmt_ctx)
{
    AVPacket pkt;

    av_init_packet(&pkt);

    while (!av_read_frame(fmt_ctx, &pkt))
        show_packet(fmt_ctx, &pkt);
}

Stefano Sabatini's avatar
Stefano Sabatini committed
157 158 159 160 161 162
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];
163
    AVMetadataTag *tag = NULL;
164
    AVRational display_aspect_ratio;
Stefano Sabatini's avatar
Stefano Sabatini committed
165 166 167 168 169 170 171 172 173 174 175 176 177

    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");
        }

178
        printf("codec_type=%s\n",         media_type_string(dec_ctx->codec_type));
Stefano Sabatini's avatar
Stefano Sabatini committed
179 180 181
        printf("codec_time_base=%d/%d\n", dec_ctx->time_base.num, dec_ctx->time_base.den);

        /* print AVI/FourCC tag */
182 183 184
        av_get_codec_tag_string(val_str, sizeof(val_str), dec_ctx->codec_tag);
        printf("codec_tag_string=%s\n", val_str);
        printf("codec_tag=0x%04x\n", dec_ctx->codec_tag);
Stefano Sabatini's avatar
Stefano Sabatini committed
185 186

        switch (dec_ctx->codec_type) {
187
        case AVMEDIA_TYPE_VIDEO:
Stefano Sabatini's avatar
Stefano Sabatini committed
188 189 190
            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);
191
            if (dec_ctx->sample_aspect_ratio.num) {
192 193 194 195 196 197 198 199
                printf("sample_aspect_ratio=%d:%d\n", dec_ctx->sample_aspect_ratio.num,
                                                      dec_ctx->sample_aspect_ratio.den);
                av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
                          dec_ctx->width  * dec_ctx->sample_aspect_ratio.num,
                          dec_ctx->height * dec_ctx->sample_aspect_ratio.den,
                          1024*1024);
                printf("display_aspect_ratio=%d:%d\n", display_aspect_ratio.num,
                                                       display_aspect_ratio.den);
200
            }
Stefano Sabatini's avatar
Stefano Sabatini committed
201 202 203 204
            printf("pix_fmt=%s\n",                 dec_ctx->pix_fmt != PIX_FMT_NONE ?
                   av_pix_fmt_descriptors[dec_ctx->pix_fmt].name : "unknown");
            break;

205
        case AVMEDIA_TYPE_AUDIO:
Stefano Sabatini's avatar
Stefano Sabatini committed
206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225
            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);
    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));
226 227
    if (stream->nb_frames)
        printf("nb_frames=%"PRId64"\n",    stream->nb_frames);
Stefano Sabatini's avatar
Stefano Sabatini committed
228 229

    while ((tag = av_metadata_get(stream->metadata, "", tag, AV_METADATA_IGNORE_SUFFIX)))
230
        printf("TAG:%s=%s\n", tag->key, tag->value);
Stefano Sabatini's avatar
Stefano Sabatini committed
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

    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));

    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();
267
    set_context_opts(fmt_ctx, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
Stefano Sabatini's avatar
Stefano Sabatini committed
268

269
    if ((err = av_open_input_file(&fmt_ctx, filename, iformat, 0, NULL)) < 0) {
Stefano Sabatini's avatar
Stefano Sabatini committed
270 271 272 273 274 275 276 277 278 279
        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;
    }

280
    av_dump_format(fmt_ctx, 0, filename, 0);
Stefano Sabatini's avatar
Stefano Sabatini committed
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

    /* 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;

308 309 310
    if (do_show_packets)
        show_packets(fmt_ctx);

Stefano Sabatini's avatar
Stefano Sabatini committed
311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328
    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");
}

329 330 331 332 333 334 335 336 337
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);
    }
}

338
static void opt_input_file(const char *arg)
Stefano Sabatini's avatar
Stefano Sabatini committed
339
{
340
    if (input_filename) {
341 342
        fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
                arg, input_filename);
343 344
        exit(1);
    }
345 346 347
    if (!strcmp(arg, "-"))
        arg = "pipe:";
    input_filename = arg;
Stefano Sabatini's avatar
Stefano Sabatini committed
348 349 350 351
}

static void show_help(void)
{
352
    av_log_set_callback(log_callback_help);
Stefano Sabatini's avatar
Stefano Sabatini committed
353 354 355
    show_usage();
    show_help_options(options, "Main options:\n", 0, 0);
    printf("\n");
356 357
    av_opt_show2(avformat_opts, NULL,
                 AV_OPT_FLAG_DECODING_PARAM, 0);
Stefano Sabatini's avatar
Stefano Sabatini committed
358 359 360 361 362 363 364 365 366 367 368 369
}

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"
370
    { "f", HAS_ARG, {(void*)opt_format}, "force format", "format" },
371 372
    { "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" },
Stefano Sabatini's avatar
Stefano Sabatini committed
373 374 375 376 377 378 379
    { "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" },
380
    { "show_packets", OPT_BOOL, {(void*)&do_show_packets}, "show packets info" },
381
    { "show_streams", OPT_BOOL, {(void*)&do_show_streams}, "show streams info" },
382
    { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
Stefano Sabatini's avatar
Stefano Sabatini committed
383 384 385 386 387
    { NULL, },
};

int main(int argc, char **argv)
{
388 389
    int ret;

Stefano Sabatini's avatar
Stefano Sabatini committed
390
    av_register_all();
391 392 393
#if CONFIG_AVDEVICE
    avdevice_register_all();
#endif
Stefano Sabatini's avatar
Stefano Sabatini committed
394

395 396
    avformat_opts = avformat_alloc_context();

Stefano Sabatini's avatar
Stefano Sabatini committed
397 398 399 400 401 402 403 404 405 406
    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);
    }

407 408 409 410 411
    ret = probe_file(input_filename);

    av_free(avformat_opts);

    return ret;
Stefano Sabatini's avatar
Stefano Sabatini committed
412
}