[libav.git] / ffprobe.c

/*
 * 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;
    AVRational display_aspect_ratio;

    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 */
        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);

        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);
            if (dec_ctx->sample_aspect_ratio.num) {
                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);
            }
            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));
    if (stream->nb_frames)
        printf("nb_frames=%"PRId64"\n",    stream->nb_frames);

    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);
}
Commit	Line	Data
336ce917 SS	1	/*
	2	* FFprobe : Simple Media Prober based on the FFmpeg libraries
	3	* Copyright (c) 2007-2010 Stefano Sabatini
	4	*
	5	* This file is part of FFmpeg.
	6	*
	7	* FFmpeg is free software; you can redistribute it and/or
	8	* modify it under the terms of the GNU Lesser General Public
	9	* License as published by the Free Software Foundation; either
	10	* version 2.1 of the License, or (at your option) any later version.
	11	*
	12	* FFmpeg is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	15	* Lesser General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU Lesser General Public
	18	* License along with FFmpeg; if not, write to the Free Software
	19	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	20	*/
	21
6ce98ea4 SS	22	#include "config.h"
6ce98ea4 SS	23
336ce917 SS	24	#include "libavformat/avformat.h"
	25	#include "libavcodec/avcodec.h"
	26	#include "libavcodec/opt.h"
	27	#include "libavutil/pixdesc.h"
6ce98ea4	28	#include "libavdevice/avdevice.h"
336ce917 SS	29	#include "cmdutils.h"
	30
	31	const char program_name[] = "FFprobe";
	32	const int program_birth_year = 2007;
	33
	34	static int do_show_format = 0;
	35	static int do_show_streams = 0;
	36
4bfe67da	37	static int convert_tags = 0;
336ce917 SS	38	static int show_value_unit = 0;
	39	static int use_value_prefix = 0;
	40	static int use_byte_value_binary_prefix = 0;
	41	static int use_value_sexagesimal_format = 0;
	42
	43	/* globals */
	44	static const OptionDef options[];
	45
	46	/* FFprobe context */
	47	static const char *input_filename;
1be784a2	48	static AVInputFormat *iformat = NULL;
336ce917 SS	49
	50	static const char *binary_unit_prefixes [] = { "", "Ki", "Mi", "Gi", "Ti", "Pi" };
	51	static const char *decimal_unit_prefixes[] = { "", "K" , "M" , "G" , "T" , "P" };
	52
	53	static const char *unit_second_str = "s" ;
	54	static const char *unit_hertz_str = "Hz" ;
	55	static const char *unit_byte_str = "byte" ;
	56	static const char *unit_bit_per_second_str = "bit/s";
	57
	58	static char value_string(char buf, int buf_size, double val, const char *unit)
	59	{
	60	if (unit == unit_second_str && use_value_sexagesimal_format) {
	61	double secs;
	62	int hours, mins;
	63	secs = val;
	64	mins = (int)secs / 60;
	65	secs = secs - mins * 60;
	66	hours = mins / 60;
	67	mins %= 60;
	68	snprintf(buf, buf_size, "%d:%02d:%09.6f", hours, mins, secs);
	69	} else if (use_value_prefix) {
	70	const char *prefix_string;
	71	int index;
	72
	73	if (unit == unit_byte_str && use_byte_value_binary_prefix) {
f1b267dd	74	index = (int) (log(val)/log(2)) / 10;
336ce917 SS	75	index = av_clip(index, 0, FF_ARRAY_ELEMS(binary_unit_prefixes) -1);
	76	val /= pow(2, index*10);
	77	prefix_string = binary_unit_prefixes[index];
	78	} else {
	79	index = (int) (log10(val)) / 3;
	80	index = av_clip(index, 0, FF_ARRAY_ELEMS(decimal_unit_prefixes) -1);
	81	val /= pow(10, index*3);
	82	prefix_string = decimal_unit_prefixes[index];
	83	}
	84
	85	snprintf(buf, buf_size, "%.3f %s%s", val, prefix_string, show_value_unit ? unit : "");
	86	} else {
	87	snprintf(buf, buf_size, "%f %s", val, show_value_unit ? unit : "");
	88	}
	89
	90	return buf;
	91	}
	92
	93	static char time_value_string(char buf, int buf_size, int64_t val, const AVRational *time_base)
	94	{
	95	if (val == AV_NOPTS_VALUE) {
	96	snprintf(buf, buf_size, "N/A");
	97	} else {
	98	value_string(buf, buf_size, val * av_q2d(*time_base), unit_second_str);
	99	}
	100
	101	return buf;
	102	}
	103
72415b2a	104	static const char *media_type_string(enum AVMediaType media_type)
336ce917	105	{
72415b2a SS	106	switch (media_type) {
	107	case AVMEDIA_TYPE_VIDEO: return "video";
	108	case AVMEDIA_TYPE_AUDIO: return "audio";
	109	case AVMEDIA_TYPE_DATA: return "data";
	110	case AVMEDIA_TYPE_SUBTITLE: return "subtitle";
	111	case AVMEDIA_TYPE_ATTACHMENT: return "attachment";
336ce917 SS	112	default: return "unknown";
	113	}
	114	}
	115
	116	static void show_stream(AVFormatContext *fmt_ctx, int stream_idx)
	117	{
	118	AVStream *stream = fmt_ctx->streams[stream_idx];
	119	AVCodecContext *dec_ctx;
	120	AVCodec *dec;
	121	char val_str[128];
efe8bb09	122	AVMetadataTag *tag = NULL;
d21b2278	123	AVRational display_aspect_ratio;
336ce917 SS	124
	125	printf("[STREAM]\n");
	126
	127	printf("index=%d\n", stream->index);
	128
	129	if ((dec_ctx = stream->codec)) {
	130	if ((dec = dec_ctx->codec)) {
	131	printf("codec_name=%s\n", dec->name);
	132	printf("codec_long_name=%s\n", dec->long_name);
	133	} else {
	134	printf("codec_name=unknown\n");
	135	}
	136
72415b2a	137	printf("codec_type=%s\n", media_type_string(dec_ctx->codec_type));
336ce917 SS	138	printf("codec_time_base=%d/%d\n", dec_ctx->time_base.num, dec_ctx->time_base.den);
	139
	140	/* print AVI/FourCC tag */
7e566bbe SS	141	av_get_codec_tag_string(val_str, sizeof(val_str), dec_ctx->codec_tag);
	142	printf("codec_tag_string=%s\n", val_str);
	143	printf("codec_tag=0x%04x\n", dec_ctx->codec_tag);
336ce917 SS	144
336ce917 SS	145	switch (dec_ctx->codec_type) {
72415b2a	146	case AVMEDIA_TYPE_VIDEO:
336ce917 SS	147	printf("width=%d\n", dec_ctx->width);
	148	printf("height=%d\n", dec_ctx->height);
	149	printf("has_b_frames=%d\n", dec_ctx->has_b_frames);
8280e2bd	150	if (dec_ctx->sample_aspect_ratio.num) {
441881b4 SS	151	printf("sample_aspect_ratio=%d:%d\n", dec_ctx->sample_aspect_ratio.num,
	152	dec_ctx->sample_aspect_ratio.den);
	153	av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
	154	dec_ctx->width * dec_ctx->sample_aspect_ratio.num,
	155	dec_ctx->height * dec_ctx->sample_aspect_ratio.den,
	156	1024*1024);
	157	printf("display_aspect_ratio=%d:%d\n", display_aspect_ratio.num,
	158	display_aspect_ratio.den);
8280e2bd	159	}
336ce917 SS	160	printf("pix_fmt=%s\n", dec_ctx->pix_fmt != PIX_FMT_NONE ?
	161	av_pix_fmt_descriptors[dec_ctx->pix_fmt].name : "unknown");
	162	break;
	163
72415b2a	164	case AVMEDIA_TYPE_AUDIO:
336ce917 SS	165	printf("sample_rate=%s\n", value_string(val_str, sizeof(val_str),
	166	dec_ctx->sample_rate,
	167	unit_hertz_str));
	168	printf("channels=%d\n", dec_ctx->channels);
	169	printf("bits_per_sample=%d\n", av_get_bits_per_sample(dec_ctx->codec_id));
	170	break;
	171	}
	172	} else {
	173	printf("codec_type=unknown\n");
	174	}
	175
	176	if (fmt_ctx->iformat->flags & AVFMT_SHOW_IDS)
	177	printf("id=0x%x\n", stream->id);
	178	printf("r_frame_rate=%d/%d\n", stream->r_frame_rate.num, stream->r_frame_rate.den);
	179	printf("avg_frame_rate=%d/%d\n", stream->avg_frame_rate.num, stream->avg_frame_rate.den);
	180	printf("time_base=%d/%d\n", stream->time_base.num, stream->time_base.den);
	181	if (stream->language[0])
	182	printf("language=%s\n", stream->language);
	183	printf("start_time=%s\n", time_value_string(val_str, sizeof(val_str), stream->start_time,
	184	&stream->time_base));
	185	printf("duration=%s\n", time_value_string(val_str, sizeof(val_str), stream->duration,
	186	&stream->time_base));
0a6a282a RK	187	if (stream->nb_frames)
0a6a282a RK	188	printf("nb_frames=%"PRId64"\n", stream->nb_frames);
336ce917 SS	189
336ce917 SS	190	while ((tag = av_metadata_get(stream->metadata, "", tag, AV_METADATA_IGNORE_SUFFIX)))
b6a41853	191	printf("TAG:%s=%s\n", tag->key, tag->value);
336ce917 SS	192
	193	printf("[/STREAM]\n");
	194	}
	195
	196	static void show_format(AVFormatContext *fmt_ctx)
	197	{
	198	AVMetadataTag *tag = NULL;
	199	char val_str[128];
	200
	201	printf("[FORMAT]\n");
	202
	203	printf("filename=%s\n", fmt_ctx->filename);
	204	printf("nb_streams=%d\n", fmt_ctx->nb_streams);
	205	printf("format_name=%s\n", fmt_ctx->iformat->name);
	206	printf("format_long_name=%s\n", fmt_ctx->iformat->long_name);
	207	printf("start_time=%s\n", time_value_string(val_str, sizeof(val_str), fmt_ctx->start_time,
	208	&AV_TIME_BASE_Q));
	209	printf("duration=%s\n", time_value_string(val_str, sizeof(val_str), fmt_ctx->duration,
	210	&AV_TIME_BASE_Q));
	211	printf("size=%s\n", value_string(val_str, sizeof(val_str), fmt_ctx->file_size,
	212	unit_byte_str));
	213	printf("bit_rate=%s\n", value_string(val_str, sizeof(val_str), fmt_ctx->bit_rate,
	214	unit_bit_per_second_str));
	215
4bfe67da SS	216	if (convert_tags)
4bfe67da SS	217	av_metadata_conv(fmt_ctx, NULL, fmt_ctx->iformat->metadata_conv);
336ce917 SS	218	while ((tag = av_metadata_get(fmt_ctx->metadata, "", tag, AV_METADATA_IGNORE_SUFFIX)))
	219	printf("TAG:%s=%s\n", tag->key, tag->value);
	220
	221	printf("[/FORMAT]\n");
	222	}
	223
	224	static int open_input_file(AVFormatContext *fmt_ctx_ptr, const char filename)
	225	{
	226	int err, i;
	227	AVFormatContext *fmt_ctx;
	228
	229	fmt_ctx = avformat_alloc_context();
	230
1be784a2	231	if ((err = av_open_input_file(&fmt_ctx, filename, iformat, 0, NULL)) < 0) {
336ce917 SS	232	print_error(filename, err);
	233	return err;
	234	}
	235
	236	/* fill the streams in the format context */
	237	if ((err = av_find_stream_info(fmt_ctx)) < 0) {
	238	print_error(filename, err);
	239	return err;
	240	}
	241
	242	dump_format(fmt_ctx, 0, filename, 0);
	243
	244	/* bind a decoder to each input stream */
	245	for (i = 0; i < fmt_ctx->nb_streams; i++) {
	246	AVStream *stream = fmt_ctx->streams[i];
	247	AVCodec *codec;
	248
	249	if (!(codec = avcodec_find_decoder(stream->codec->codec_id))) {
	250	fprintf(stderr, "Unsupported codec (id=%d) for input stream %d\n",
	251	stream->codec->codec_id, stream->index);
	252	} else if (avcodec_open(stream->codec, codec) < 0) {
	253	fprintf(stderr, "Error while opening codec for input stream %d\n",
	254	stream->index);
	255	}
	256	}
	257
	258	*fmt_ctx_ptr = fmt_ctx;
	259	return 0;
	260	}
	261
	262	static int probe_file(const char *filename)
	263	{
	264	AVFormatContext *fmt_ctx;
	265	int ret, i;
	266
	267	if ((ret = open_input_file(&fmt_ctx, filename)))
	268	return ret;
	269
	270	if (do_show_streams)
	271	for (i = 0; i < fmt_ctx->nb_streams; i++)
	272	show_stream(fmt_ctx, i);
	273
	274	if (do_show_format)
	275	show_format(fmt_ctx);
	276
	277	av_close_input_file(fmt_ctx);
	278	return 0;
	279	}
	280
	281	static void show_usage(void)
	282	{
	283	printf("Simple multimedia streams analyzer\n");
	284	printf("usage: ffprobe [OPTIONS] [INPUT_FILE]\n");
	285	printf("\n");
	286	}
	287
1be784a2 SS	288	static void opt_format(const char *arg)
	289	{
	290	iformat = av_find_input_format(arg);
	291	if (!iformat) {
	292	fprintf(stderr, "Unknown input format: %s\n", arg);
	293	exit(1);
	294	}
	295	}
	296
912dd63e	297	static void opt_input_file(const char *arg)
336ce917	298	{
c8c0ac6b	299	if (input_filename) {
58621b8d SS	300	fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
58621b8d SS	301	arg, input_filename);
c8c0ac6b RP	302	exit(1);
c8c0ac6b RP	303	}
912dd63e SS	304	if (!strcmp(arg, "-"))
	305	arg = "pipe:";
	306	input_filename = arg;
336ce917 SS	307	}
	308
	309	static void show_help(void)
	310	{
	311	show_usage();
	312	show_help_options(options, "Main options:\n", 0, 0);
	313	printf("\n");
	314	}
	315
	316	static void opt_pretty(void)
	317	{
	318	show_value_unit = 1;
	319	use_value_prefix = 1;
	320	use_byte_value_binary_prefix = 1;
	321	use_value_sexagesimal_format = 1;
	322	}
	323
	324	static const OptionDef options[] = {
	325	#include "cmdutils_common_opts.h"
4bfe67da	326	{ "convert_tags", OPT_BOOL, {(void*)&convert_tags}, "convert tag names to the FFmpeg generic tag names" },
1be784a2	327	{ "f", HAS_ARG, {(void*)opt_format}, "force format", "format" },
818636ec SS	328	{ "unit", OPT_BOOL, {(void*)&show_value_unit}, "show unit of the displayed values" },
818636ec SS	329	{ "prefix", OPT_BOOL, {(void*)&use_value_prefix}, "use SI prefixes for the displayed values" },
336ce917 SS	330	{ "byte_binary_prefix", OPT_BOOL, {(void*)&use_byte_value_binary_prefix},
	331	"use binary prefixes for byte units" },
	332	{ "sexagesimal", OPT_BOOL, {(void*)&use_value_sexagesimal_format},
	333	"use sexagesimal format HOURS:MM:SS.MICROSECONDS for time units" },
	334	{ "pretty", 0, {(void*)&opt_pretty},
	335	"prettify the format of displayed values, make it more human readable" },
	336	{ "show_format", OPT_BOOL, {(void*)&do_show_format} , "show format/container info" },
818636ec	337	{ "show_streams", OPT_BOOL, {(void*)&do_show_streams}, "show streams info" },
336ce917 SS	338	{ NULL, },
	339	};
	340
	341	int main(int argc, char **argv)
	342	{
	343	av_register_all();
6ce98ea4 SS	344	#if CONFIG_AVDEVICE
	345	avdevice_register_all();
	346	#endif
336ce917 SS	347
	348	show_banner();
	349	parse_options(argc, argv, options, opt_input_file);
	350
	351	if (!input_filename) {
	352	show_usage();
	353	fprintf(stderr, "You have to specify one input file.\n");
	354	fprintf(stderr, "Use -h to get full help or, even better, run 'man ffprobe'.\n");
	355	exit(1);
	356	}
	357
	358	return probe_file(input_filename);
	359	}