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Add FFprobe tool.

Browse Source 
This is a simplified / cleaned-up version of the SourceForge program:
http://sourceforge.net/projects/ffprobe/

Syntax / features may be different, in particular the options
-show_packets and -show_frames are not yet supported in this version.

Originally committed as revision 21936 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Stefano Sabatini 2010-02-21 11:43:01 +00:00
parent f05ef45c8f
commit 336ce917e6
5 changed files with 455 additions and 2 deletions
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1
Changelog
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@ -58,6 +58,7 @@ version <next>:
- Indeo 5 decoder
- RTP depacketization of AMR
- WMAVoice decoder
- FFprobe tool

5
Makefile
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@ -6,6 +6,7 @@ vpath %.texi $(SRC_PATH_BARE)
PROGS-$(CONFIG_FFMPEG) += ffmpeg
PROGS-$(CONFIG_FFPLAY) += ffplay
PROGS-$(CONFIG_FFPROBE) += ffprobe
PROGS-$(CONFIG_FFSERVER) += ffserver
PROGS := $(addsuffix $(EXESUF), $(PROGS-yes))
@ -15,7 +16,7 @@ MANPAGES = $(addprefix doc/, $(addsuffix .1, $(PROGS-yes)))
TOOLS = $(addprefix tools/, $(addsuffix $(EXESUF), cws2fws pktdumper probetest qt-faststart trasher))
HOSTPROGS = $(addprefix tests/, audiogen videogen rotozoom tiny_psnr)
BASENAMES = ffmpeg ffplay ffserver
BASENAMES = ffmpeg ffplay ffprobe ffserver
ALLPROGS = $(addsuffix $(EXESUF), $(BASENAMES))
ALLPROGS_G = $(addsuffix _g$(EXESUF), $(BASENAMES))
ALLMANPAGES = $(addsuffix .1, $(BASENAMES))
@ -87,7 +88,7 @@ cmdutils.o cmdutils.d: version.h
alltools: $(TOOLS)
documentation: $(addprefix doc/, developer.html faq.html ffmpeg-doc.html \
ffplay-doc.html ffserver-doc.html \
ffplay-doc.html ffprobe-doc.html ffserver-doc.html \
general.html libavfilter.html $(ALLMANPAGES))
doc/%.html: doc/%.texi

4
configure vendored
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@ -82,6 +82,7 @@ Configuration options:
--disable-doc do not build documentation
--disable-ffmpeg disable ffmpeg build
--disable-ffplay disable ffplay build
--disable-ffprobe disable ffprobe build
--disable-ffserver disable ffserver build
--disable-avdevice disable libavdevice build
--disable-avcodec disable libavcodec build
@ -890,6 +891,7 @@ CONFIG_LIST="
fastdiv
ffmpeg
ffplay
ffprobe
ffserver
fft
golomb
@ -1398,6 +1400,7 @@ avformat_deps="avcodec"
ffmpeg_deps="avcodec avformat swscale"
ffplay_deps="avcodec avformat swscale sdl"
ffplay_select="rdft"
ffprobe_deps="avcodec avformat"
ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
ffserver_extralibs='$ldl'
@ -1449,6 +1452,7 @@ enable doc
enable fastdiv
enable ffmpeg
enable ffplay
enable ffprobe
enable ffserver
enable mpegaudio_hp
enable network

114
doc/ffprobe-doc.texi Normal file
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@ -0,0 +1,114 @@
\input texinfo @c -*- texinfo -*-
@settitle FFprobe Documentation
@titlepage
@sp 7
@center @titlefont{FFprobe Documentation}
@sp 3
@end titlepage
@chapter Introduction
@c man begin DESCRIPTION
FFprobe gathers information from multimedia streams and prints it in
human- and machine-readable fashion.
For example it can be used to check the format of the container used
by a multimedia stream and the format and type of each media stream
contained in it.
If a filename is specified in input, ffprobe will try to open and
probe the file content. If the file cannot be opened or recognized as
a multimedia file, a positive exit code is returned.
FFprobe may be employed both as a standalone application or in
combination with a textual filter, which may perform more
sophisticated processing, e.g. statistical processing or plotting.
Options are used to list some of the formats supported by ffprobe or
for specifying which information to display, and for setting how
ffprobe will show it.
FFprobe output is designed to be easily parsable by a textual filter,
and consists of one or more sections of the form:
@example
[SECTION]
key1=val1
...
keyN=valN
[/SECTION]
@end example
Metadata tags stored in the container or in the streams are recognized
and printed in the corresponding ``FORMAT'' or ``STREAM'' section, and
are prefixed by the string ``TAG:''.
@c man end
@chapter Invocation
@section Syntax
The generic syntax is:
@example
@c man begin SYNOPSIS
ffprobe [options] [@file{input_file}]
@c man end
@end example
@c man begin OPTIONS
@include fftools-common-opts.texi
@section Main options
@table @option
@item -unit
Show the unit of the displayed values.
@item -prefix
Show a SI prefixes of the displayed values.
Unless ``-byte_binary_prefix'' option is used all the prefix
are decimal.
@item -byte_binary_prefix
Force the use of binary prefixes for byte values.
@item -sexagesimal
Use sexagesimal format HH:MM:SS.MICROSECONDS for time values.
@item -pretty
Prettify the format of the displayed values, it corresponds to the
options ``-unit -prefix -byte_binary_prefix -sexagesimal''.
@item -show_format
Show information about the container format of the input multimedia
stream.
All the container format information is printed within a section with
name ``FORMAT''.
@item -show_streams
Show information about each media stream contained in the input
multimedia stream.
Each media stream information is printed within a dedicated section
with name ``STREAM''.
@end table
@c man end
@ignore
@setfilename ffprobe
@settitle FFprobe media prober
@c man begin SEEALSO
ffmpeg(1), ffplay(1), ffserver(1)
@c man end
@end ignore
@bye

333
ffprobe.c Normal file
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@ -0,0 +1,333 @@
/*
* 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
*/
#undef HAVE_AV_CONFIG_H
#include "libavformat/avformat.h"
#include "libavcodec/avcodec.h"
#include "libavcodec/opt.h"
#include "libavutil/pixdesc.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 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 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) (log2(val)) / 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 *codec_type_string(enum CodecType codec_type)
{
switch (codec_type) {
case CODEC_TYPE_VIDEO: return "video";
case CODEC_TYPE_AUDIO: return "audio";
case CODEC_TYPE_DATA: return "data";
case CODEC_TYPE_SUBTITLE: return "subtitle";
case CODEC_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;
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", codec_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 CODEC_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 CODEC_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("%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));
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, NULL, 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_input_file(const char *filename)
{
if (!strcmp(filename, "-"))
filename = "pipe:";
input_filename = filename;
}
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"
{ "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();
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);
}