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.\" $Id: epinfo.1,v 1.6 1999/04/28 08:40:45 crosser Exp $
.\"
.\" Copyright (c) 1997-1999 Eugene G. Crosser
.\" Copyright (c) 1998,1999 Bruce D. Lightner (DOS/Windows support)
.\"
.\" You may distribute and/or use for any purpose modified or unmodified
.\" copies of this software if you preserve the copyright notice above.
.\"
.\" THIS SOFTWARE IS PROVIDED AS IS AND COME WITH NO WARRANTY OF ANY
.\" KIND, EITHER EXPRESSED OR IMPLIED. IN NO EVENT WILL THE
.\" COPYRIGHT HOLDER BE LIABLE FOR ANY DAMAGES RESULTING FROM THE
.\" USE OF THIS SOFTWARE.
.\"
.\" $Log: epinfo.1,v $
.\" Revision 1.6 1999/04/28 08:40:45 crosser
.\" remove extra section
.\"
.\" Revision 1.5 1999/03/21 20:22:09 crosser
.\" sync format desc with actual program
.\"
.\" Revision 1.4 1999/03/13 13:10:13 crosser
.\" reflect 3.00 changes
.\"
.\" Revision 1.3 1999/03/06 10:24:16 crosser
.\" support Exif
.\"
.\" Revision 1.2 1998/10/18 13:18:27 crosser
.\" Put RCS logs and I.D. into the source
.\"
.\" Revision 1.1 1997/08/17 08:59:54 crosser
.\" Initial revision
.\"
.TH EPINFO 1 "24 May 1997" "PhotoPC manipulation tool" "User Commands"
.SH NAME
epinfo \- extract technical information from digital camera generated files
.SH SYNOPSIS
epinfo [-h] [-V] [-z] [-r] [-t] [-f fmt] [-T <TagName>] <filename> ...
.SH DESCRIPTION
This command extracts the contents of TIFF directory of Exif files or
APP12 marker from JFIF files, parses it and optionaly finds specific
data inside it. If used without
.BR -T ", "-r " and "-t
options, dumps the complete block data in human readable format. With
.B -r
and
.B -t
options, renames and changes timestamp of the files.
.PP
.SH "OPTIONS"
.TP 0.5i
.B -h
This option produces a help screen of all options and commands.
.TP 0.5i
.B -V
This option prints software revision information.
.TP 0.5i
.B -z
This option sets no time-zone processing mode. Use this option if the
camera's clock is set up shifted by the local timezone offset (as it is
when you set it manually to the local time).
.TP 0.5i
.B -r
Rename files, generating new name based on the time of snapshot and
.B -f
option value.
.TP 0.5i
.B -t
Set timestamp of the files to the time of snapshots.
.TP 0.5i
.B -f timeformat
This option allows to specify the format for automatically generated
image file names; the value is used as the format string for strftime(3)
function. By default, names of the format "MMDD_NNN.jpg" are generated,
where MM is a month, DD is a day, and NNN is a count starting from 001.
A good starting point for the timeformat value could be
"%Y_%m_%d-%H_%M_%S.jpg". If the format string contains context "%%XXXd"
where XXX are digits, it is taken for the count, i.e. if the file with
such name is present, next count is tried. If the format string does
not contain "%%XXXd" part, the count field, if necessary, is appended at
the end of the name.
A few single-character formats are used as shortcuts. "x" makes the
name of seconds since the epoch in hexadecimal format (8 characters +
".jpg"), "d" - the same in decimal format (10 characters), "1" stands
for default format "%m%d_%%03d.jpg", "2" stands for "%y%m%d%%02d.jpg",
"3" stands for "%Y_%m_%d-%H_%M_%S.jpg" and 4 stands for
"%Y/%m/%d/%H_%M_%S.jpg". The program attempts to create intermediate
directories is necessary (and possible).
.TP 0.5i
.B -T <TagName>
Output the value of this keyword in the information block. Note that
keywords are case sensitive. TagName
.I DateTime
has special meaning: if the file is
.IR Exif ",
it just prints the value of DateTime tag, and if the format is old
.IR APP12 ",
it outputs the value of
.I TimeDate
tag in the same format as Exif
.IR DateTime ".
.SH ARGUMENTS
.TP 0.5i
.B <filename> ...
List of filenames to process.
.SH EXAMPLES
% epinfo -f3 -rt pic00001.jpg
% epinfo -T FNumber 0512_003.jpg
.SH OTHER NOTES
The latest version of this tool can be found at
ftp://ftp.average.org/pub/photopc/; see also WWW page at
http://www.average.org/digicam/.
Trademarks are properties of their respective owners.
.SH COPYRIGHT
The program is copyrighted by Eugene G. Crosser <crosser@average.org>
and freely distributable. See README file for details.
.SH SEE ALSO
photopc(1)
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