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Map Date-Time and GPS tags.

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Original commit message from CVS:
Map Date-Time and GPS tags.
This commit is contained in:
Edgard Lima 2008-02-10 04:36:12 +00:00
parent a4c996087e
commit a0254c0e2f
7 changed files with 1150 additions and 140 deletions
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11
ChangeLog
View file

@ -1,3 +1,14 @@
2008-02-10 Edgard Lima <edgard.lima@indt.org.br>
* ext/metadata/TODO:
* ext/metadata/metadata_mapping.htm:
* ext/metadata/metadataexif.c:
* ext/metadata/metadatatags.c:
* ext/metadata/metadatatags.h:
* tests/icles/metadata_editor.c:
Map Date-Time and GPS tags.
2008-02-09 Jan Schmidt <jan.schmidt@sun.com>
* gst/selector/Makefile.am:

27
ext/metadata/TODO
View file

@ -3,7 +3,8 @@ This file contains a list of things to be done as well some open issues (questio
INFO:
1- to see what tags are mapped so far run 'grep -n GST_TAG *.[ch]' into this folder.
1- To see the list of tags current mapped:
http://webcvs.freedesktop.org/gstreamer/gst-plugins-bad/ext/metadata/metadata_mapping.htm?view=co
TODO:
@ -12,6 +13,8 @@ TODO:
3- Review the code (in order to move to gst-plugins-good)
4- Document how the plugin works (atchitecture and interaction beteween modules)
5- Improve the test application (to save also in png and to make it possible to set the metadata elements properties)
6- Implement GDateTime support in GLib to be used by GStreamer (http://bugzilla.gnome.org/show_bug.cgi?id=50076)
7- Use a standard GStreamer Data-Time type to map our Data-time tags
OPEN ISSUES:
@ -23,26 +26,32 @@ OPEN ISSUES:
4- Add GST_TYPE_FRACTION support for GStreamer TAGS
5- currently, in JPEG files, if there is a Photoshop segment, everything inside it but IPTC will be lost. From the point of view of implementation it is easy, but I still don't now how to solve from the point of view of "designing". Anyway I think it is not so important.
6- language is not considered in XMP (How to do it with GStreamer?)
7- Add a helper function that convert from value to string. For example, aperture-size is 2.7 and the app wants to show "f/2.7", 'contrast' is a range and the app wants to show as "Normal", "Soft", "Hard". For the time being it is up to the APP to make this conversion.
7- Add a helper function that convert from value to string. For example,
aperture-size is 2.7 and the app wants to show "f/2.7", 'contrast' is a range
and the app wants to show as "Normal", "Soft", "Hard". For the time being it is
up to the APP to make this conversion.
LINKS IN BUGZILA
1- to move to good
http://bugzilla.gnome.org/show_bug.cgi?id=513182
http://bugzilla.gnome.org/show_bug.cgi?id=513182
2- Proposal of new tags
http://bugzilla.gnome.org/show_bug.cgi?id=482947
http://bugzilla.gnome.org/show_bug.cgi?id=482947
http://bugzilla.gnome.org/show_bug.cgi?id=481169
3- Discussion about the architecture
http://bugzilla.gnome.org/show_bug.cgi?id=486659
http://bugzilla.gnome.org/show_bug.cgi?id=486659
4- Also extraction image width and height and set caps properly
http://bugzilla.gnome.org/show_bug.cgi?id=503616
http://bugzilla.gnome.org/show_bug.cgi?id=503616
KNOWN BUGS
bugs in libexif:
https://sourceforge.net/tracker/?func=detail&atid=112272&aid=1884609&group_id=12272
1- https://sourceforge.net/tracker/?func=detail&atid=112272&aid=1884609&group_id=12272
1- EXIF_TAG_ISO_SPEED_RATINGS should be in EXIF_IFD_EXIF
2- EXIF_TAG_ISO_SPEED_RATINGS is not inserted anyway
a- EXIF_TAG_ISO_SPEED_RATINGS should be in EXIF_IFD_EXIF
b- EXIF_TAG_ISO_SPEED_RATINGS is not inserted anyway
2- EXIF_TAG_FLASH can't be written from the scratch
3- GST_TAG_CAPTURE_COLOR_SPACE can't be written from the scratch

410
ext/metadata/metadata_mapping.htm
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@ -7,7 +7,10 @@
<META NAME="AUTHOR" CONTENT="Edgard Lima">
<META NAME="CREATED" CONTENT="20080131;12581600">
<META NAME="CHANGEDBY" CONTENT="Edgard Lima">
<META NAME="CHANGED" CONTENT="20080207;15491600">
<META NAME="CHANGED" CONTENT="20080210;6205000">
<META NAME="CHANGEDBY" CONTENT="Edgard Lima">
<META NAME="CHANGEDBY" CONTENT="Edgard Lima">
<META NAME="CHANGEDBY" CONTENT="Edgard Lima">
<META NAME="CHANGEDBY" CONTENT="Edgard Lima">
<META NAME="CHANGEDBY" CONTENT="Edgard Lima">
<!-- -->
@ -197,29 +200,32 @@
</TR>
<TR VALIGN=TOP>
<TD WIDTH=13% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
<P CLASS="western" ALIGN=CENTER><FONT COLOR="#ff0000"><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></FONT></P>
</TD>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">GST_TAG_CAPTURE_COLOR_SPACE</FONT></P>
<P CLASS="western" ALIGN=LEFT><FONT COLOR="#ff0000"><FONT SIZE=1 STYLE="font-size: 8pt">GST_TAG_CAPTURE_COLOR_SPACE</FONT></FONT></P>
</TD>
<TD WIDTH=11% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">&quot;capture-color-space&quot;</FONT></P>
<P CLASS="western" ALIGN=LEFT><FONT COLOR="#ff0000"><FONT SIZE=1 STYLE="font-size: 8pt">&quot;capture-color-space&quot;</FONT></FONT></P>
</TD>
<TD WIDTH=11% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">G_TYPE_UINT</FONT></P>
<P CLASS="western" ALIGN=LEFT><FONT COLOR="#ff0000"><FONT SIZE=1 STYLE="font-size: 8pt">G_TYPE_UINT</FONT></FONT></P>
</TD>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">1-
sRGB;<BR>0xFFFF - Uncalibrated</FONT></P>
<P CLASS="western" ALIGN=LEFT><FONT COLOR="#ff0000"><FONT SIZE=1 STYLE="font-size: 8pt">1-
sRGB;<BR>0xFFFF - Uncalibrated</FONT></FONT></P>
</TD>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">EXIF_TAG_COLOR_SPACE</FONT></P>
<P CLASS="western" ALIGN=LEFT STYLE="margin-bottom: 0.5cm"><FONT COLOR="#ff0000"><FONT SIZE=1 STYLE="font-size: 8pt">EXIF_TAG_COLOR_SPACE</FONT></FONT></P>
<P CLASS="western" ALIGN=LEFT><FONT COLOR="#ff0000"><FONT SIZE=1 STYLE="font-size: 8pt">BUG
in libexif. Can't be created in a exif data created from the
scratch</FONT></FONT></P>
</TD>
<TD WIDTH=13% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
<P CLASS="western" ALIGN=CENTER><FONT COLOR="#ff0000"><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></FONT></P>
</TD>
<TD WIDTH=10% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
<P CLASS="western" ALIGN=CENTER><FONT COLOR="#ff0000"><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></FONT></P>
</TD>
</TR>
<TR VALIGN=TOP>
@ -321,7 +327,7 @@
</TD>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">0-
Auto exposure;<BR>1- Manual exposure;<BR>2- Auto bracket (the
Auto exposure;<BR>1- Manual exposure;<BR>2- Auto bracket (the
camera shoots a series of frames of the same scene at different
exposure settings)</FONT></P>
</TD>
@ -602,8 +608,7 @@
</TR>
<TR VALIGN=TOP>
<TD WIDTH=13%>
<P CLASS="western" ALIGN=CENTER><BR>
</P>
<P CLASS="western" ALIGN=CENTER>-</P>
</TD>
<TD WIDTH=14%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">GST_TAG_CAPTURE_ORIENTATION</FONT></P>
@ -782,75 +787,139 @@
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=14%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">GST_TAG_DEVICE_MAKE</FONT></P>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">GST_TAG_DATE_TIME_DIGITIZED</FONT></P>
</TD>
<TD WIDTH=11%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">&quot;device-make&quot;</FONT></P>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">&quot;date-time-digitized&quot;</FONT></P>
</TD>
<TD WIDTH=11%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">G_TYPE_STRING</FONT></P>
</TD>
<TD WIDTH=14%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">Date/Time
of image digitized<BR>formated as <A HREF="http://www.w3.org/TR/1998/NOTE-datetime-19980827">subset
of ISO RFC
8601</A>:<BR>YYYY<BR>YYYY-MM<BR>YYYY-MM-DD<BR>YYYY-MM-DDThh:mmTZD<BR>YYYY-MM-DDThh:mm:ssTZD<BR>YYYY-MM-DDThh:mm:ss.sTZD<BR>where:<BR>YYYY
= four-digit year;<BR>MM = two-digit month (01=January);<BR>DD =
two-digit day of month (01 through 31);<BR>hh = two digits of hour
(00 through 23);<BR>mm = two digits of minute (00 through 59);<BR>ss
= two digits of second (00 through 59);<BR>s = one or more digits
representing a decimal fraction of a second;<BR>TZD = time zone
designator (Z or +hh:mm or -hh:mm)</FONT></P>
</TD>
<TD WIDTH=14%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">EXIF_TAG_DATE_TIME_DIGITIZED</FONT></P>
</TD>
<TD WIDTH=13%>
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=10%>
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
</TR>
<TR VALIGN=TOP>
<TD WIDTH=13% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">GST_TAG_DATE_TIME_MODIFIED</FONT></P>
</TD>
<TD WIDTH=11% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">&quot;date-time-modified&quot;</FONT></P>
</TD>
<TD WIDTH=11% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">G_TYPE_STRING</FONT></P>
</TD>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">Date/Time
of image was last modified<BR>the same format as
GST_TAG_DATE_TIME_DIGITIZED</FONT></P>
</TD>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">EXIF_TAG_DATE_TIME</FONT></P>
</TD>
<TD WIDTH=13% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=10% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
</TR>
<TR VALIGN=TOP>
<TD WIDTH=13%>
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=14%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">GST_TAG_DATE_TIME_ORIGINAL</FONT></P>
</TD>
<TD WIDTH=11%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">&quot;date-time-original&quot;</FONT></P>
</TD>
<TD WIDTH=11%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">G_TYPE_STRING</FONT></P>
</TD>
<TD WIDTH=14%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">Date/Time
of original image taken<BR>the same format as
GST_TAG_DATE_TIME_DIGITIZED</FONT></P>
</TD>
<TD WIDTH=14%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">EXIF_TAG_DATE_TIME_ORIGINAL</FONT></P>
</TD>
<TD WIDTH=13%>
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=10%>
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
</TR>
<TR VALIGN=TOP>
<TD WIDTH=13% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">GST_TAG_DEVICE_MAKE</FONT></P>
</TD>
<TD WIDTH=11% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">&quot;device-make&quot;</FONT></P>
</TD>
<TD WIDTH=11% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">G_TYPE_STRING</FONT></P>
</TD>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">The
manufacturer of the recording equipment</FONT></P>
</TD>
<TD WIDTH=14%>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">EXIF_TAG_MAKE</FONT></P>
</TD>
<TD WIDTH=13%>
<TD WIDTH=13% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=10%>
<TD WIDTH=10% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
</TR>
<TR VALIGN=TOP>
<TD WIDTH=13% BGCOLOR="#e6e6ff">
<TD WIDTH=13%>
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<TD WIDTH=14%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">GST_TAG_DEVICE_MODEL</FONT></P>
</TD>
<TD WIDTH=11% BGCOLOR="#e6e6ff">
<TD WIDTH=11%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">&quot;device-model&quot;</FONT></P>
</TD>
<TD WIDTH=11% BGCOLOR="#e6e6ff">
<TD WIDTH=11%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">G_TYPE_STRING</FONT></P>
</TD>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<TD WIDTH=14%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">The
model name or model number of the equipment</FONT></P>
</TD>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<TD WIDTH=14%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">EXIF_TAG_MODEL</FONT></P>
</TD>
<TD WIDTH=13% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=10% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
</TR>
<TR VALIGN=TOP>
<TD WIDTH=13%>
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=14%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">GST_TAG_IMAGE_HEIGHT</FONT></P>
</TD>
<TD WIDTH=11%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">&quot;image-height&quot;</FONT></P>
</TD>
<TD WIDTH=11%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">G_TYPE_UINT</FONT></P>
</TD>
<TD WIDTH=14%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">Image
height in pixels</FONT></P>
</TD>
<TD WIDTH=14%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">EXIF_TAG_PIXEL_Y_DIMENSION</FONT></P>
</TD>
<TD WIDTH=13%>
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
@ -863,20 +932,20 @@
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">GST_TAG_IMAGE_WIDTH</FONT></P>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">GST_TAG_EXIF_MAKER_NOTE</FONT></P>
</TD>
<TD WIDTH=11% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">&quot;image-width&quot;</FONT></P>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">&quot;exif-maker-note&quot;</FONT></P>
</TD>
<TD WIDTH=11% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">G_TYPE_UINT</FONT></P>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">GST_TYPE_BUFFER</FONT></P>
</TD>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">Image
width in pixels</FONT></P>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">Camera
private data</FONT></P>
</TD>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">EXIF_TAG_PIXEL_X_DIMENSION</FONT></P>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">EXIF_TAG_MAKER_NOTE</FONT></P>
</TD>
<TD WIDTH=13% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
@ -890,163 +959,300 @@
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=14%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">GST_TAG_IMAGE_XRESOLUTION</FONT></P>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">GST_TAG_GPS_ALTITUDE</FONT></P>
</TD>
<TD WIDTH=11%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">&quot;image-xresolution&quot;</FONT></P>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">&quot;gps-altitude&quot;</FONT></P>
</TD>
<TD WIDTH=11%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">GST_TYPE_FRACTION</FONT></P>
</TD>
<TD WIDTH=14%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">Altitude
(positive means abive sea and negative bellow sea)</FONT></P>
</TD>
<TD WIDTH=14%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">EXIF_TAG_GPS_ALTITUDE</FONT></P>
</TD>
<TD WIDTH=13%>
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=10%>
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
</TR>
<TR VALIGN=TOP>
<TD WIDTH=13% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">GST_TAG_GPS_LATITUDE</FONT></P>
</TD>
<TD WIDTH=11% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">&quot;gps-latitude&quot;</FONT></P>
</TD>
<TD WIDTH=11% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">G_TYPE_STRING</FONT></P>
</TD>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">Latitude
in the same format as specified in XMP:<BR>&quot;DDD,MM,SSk&quot;
or &quot;DDD,MM.mmk&quot;<BR>D- degrees<BR>M- minutes<BR>S-
seconds<BR>k- 'N', 'S', 'E', 'W' (North, South, East, West)</FONT></P>
</TD>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">EXIF_TAG_GPS_LATITUDE</FONT></P>
</TD>
<TD WIDTH=13% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=10% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
</TR>
<TR VALIGN=TOP>
<TD WIDTH=13%>
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=14%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">GST_TAG_GPS_LONGITUDE</FONT></P>
</TD>
<TD WIDTH=11%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">&quot;gps-longitude&quot;</FONT></P>
</TD>
<TD WIDTH=11%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">G_TYPE_STRING</FONT></P>
</TD>
<TD WIDTH=14%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">Longitude.
The format is the sames as GST_TAG_GPS_LATITUDE</FONT></P>
</TD>
<TD WIDTH=14%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">EXIF_TAG_GPS_LONGITUDE</FONT></P>
</TD>
<TD WIDTH=13%>
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=10%>
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
</TR>
<TR VALIGN=TOP>
<TD WIDTH=13% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">GST_TAG_IMAGE_HEIGHT</FONT></P>
</TD>
<TD WIDTH=11% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">&quot;image-height&quot;</FONT></P>
</TD>
<TD WIDTH=11% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">G_TYPE_UINT</FONT></P>
</TD>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">Image
height in pixels</FONT></P>
</TD>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">EXIF_TAG_PIXEL_Y_DIMENSION</FONT></P>
</TD>
<TD WIDTH=13% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=10% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
</TR>
<TR VALIGN=TOP>
<TD WIDTH=13%>
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=14%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">GST_TAG_IMAGE_WIDTH</FONT></P>
</TD>
<TD WIDTH=11%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">&quot;image-width&quot;</FONT></P>
</TD>
<TD WIDTH=11%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">G_TYPE_UINT</FONT></P>
</TD>
<TD WIDTH=14%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">Image
width in pixels</FONT></P>
</TD>
<TD WIDTH=14%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">EXIF_TAG_PIXEL_X_DIMENSION</FONT></P>
</TD>
<TD WIDTH=13%>
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=10%>
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
</TR>
<TR VALIGN=TOP>
<TD WIDTH=13% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">GST_TAG_IMAGE_XRESOLUTION</FONT></P>
</TD>
<TD WIDTH=11% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">&quot;image-xresolution&quot;</FONT></P>
</TD>
<TD WIDTH=11% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">GST_TYPE_FRACTION</FONT></P>
</TD>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">Horizontal
resolution in pixels per inch.<BR>Here it is always in inches.<BR>In
EXIF it depends on EXIF_TAG_RESOLUTION_UNIT</FONT></P>
</TD>
<TD WIDTH=14%>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">EXIF_TAG_X_RESOLUTION</FONT></P>
</TD>
<TD WIDTH=13%>
<TD WIDTH=13% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=10%>
<TD WIDTH=10% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
</TR>
<TR VALIGN=TOP>
<TD WIDTH=13% BGCOLOR="#e6e6ff">
<TD WIDTH=13%>
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<TD WIDTH=14%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">GST_TAG_IMAGE_YRESOLUTION</FONT></P>
</TD>
<TD WIDTH=11% BGCOLOR="#e6e6ff">
<TD WIDTH=11%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">&quot;image-yresolution&quot;</FONT></P>
</TD>
<TD WIDTH=11% BGCOLOR="#e6e6ff">
<TD WIDTH=11%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">GST_TYPE_FRACTION</FONT></P>
</TD>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<TD WIDTH=14%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">Vertical
resolution in pixels per inch.<BR>Here it is always in inches.<BR>In
EXIF it depends on EXIF_TAG_RESOLUTION_UNIT</FONT></P>
</TD>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<TD WIDTH=14%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">EXIF_TAG_Y_RESOLUTION</FONT></P>
</TD>
<TD WIDTH=13% BGCOLOR="#e6e6ff">
<TD WIDTH=13%>
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=10% BGCOLOR="#e6e6ff">
<TD WIDTH=10%>
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
</TR>
<TR VALIGN=TOP>
<TD WIDTH=13%>
<TD WIDTH=13% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">GST_TAG_COMPOSER</FONT></P>
</TD>
<TD WIDTH=14%>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=11%>
<TD WIDTH=11% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">&quot;composer&quot;</FONT></P>
</TD>
<TD WIDTH=11%>
<TD WIDTH=11% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">G_TYPE_STRING</FONT></P>
</TD>
<TD WIDTH=14%>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">Name
of the creator of the object, e.g. writer, photographer or graphic
artist.</FONT></P>
</TD>
<TD WIDTH=14%>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=13%>
<TD WIDTH=13% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">IPTC_TAG_BYLINE</FONT></P>
</TD>
<TD WIDTH=10%>
<TD WIDTH=10% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
</TR>
<TR VALIGN=TOP>
<TD WIDTH=13% BGCOLOR="#e6e6ff">
<TD WIDTH=13%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">GST_TAG_COPYRIGHT</FONT></P>
</TD>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<TD WIDTH=14%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=11% BGCOLOR="#e6e6ff">
<TD WIDTH=11%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">&quot;copyright&quot;</FONT></P>
</TD>
<TD WIDTH=11% BGCOLOR="#e6e6ff">
<TD WIDTH=11%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">G_TYPE_STRING</FONT></P>
</TD>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<TD WIDTH=14%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">Any
necessary copyright notice.</FONT></P>
</TD>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<TD WIDTH=14%>
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=13% BGCOLOR="#e6e6ff">
<TD WIDTH=13%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">IPTC_TAG_COPYRIGHT_NOTICE</FONT></P>
</TD>
<TD WIDTH=10% BGCOLOR="#e6e6ff">
<TD WIDTH=10%>
<P CLASS="western" ALIGN=LEFT>“<FONT SIZE=1 STYLE="font-size: 8pt">dc:rights”</FONT></P>
</TD>
</TR>
<TR VALIGN=TOP>
<TD WIDTH=13%>
<TD WIDTH=13% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">GST_TAG_DESCRIPTION</FONT></P>
</TD>
<TD WIDTH=14%>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=11%>
<TD WIDTH=11% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">&quot;description&quot;</FONT></P>
</TD>
<TD WIDTH=11%>
<TD WIDTH=11% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">G_TYPE_STRING</FONT></P>
</TD>
<TD WIDTH=14%>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">A
textual description of the data</FONT></P>
</TD>
<TD WIDTH=14%>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=13%>
<TD WIDTH=13% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">IPTC_TAG_CAPTION</FONT></P>
</TD>
<TD WIDTH=10%>
<TD WIDTH=10% BGCOLOR="#e6e6ff">
<P CLASS="western" ALIGN=LEFT>“<FONT SIZE=1 STYLE="font-size: 8pt">dc:description”</FONT></P>
</TD>
</TR>
<TR VALIGN=TOP>
<TD WIDTH=13% BGCOLOR="#e6e6ff">
<TD WIDTH=13%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">GST_TAG_TITLE</FONT></P>
</TD>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<TD WIDTH=14%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=11% BGCOLOR="#e6e6ff">
<TD WIDTH=11%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">&quot;title&quot;</FONT></P>
</TD>
<TD WIDTH=11% BGCOLOR="#e6e6ff">
<TD WIDTH=11%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">G_TYPE_STRING</FONT></P>
</TD>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<TD WIDTH=14%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">A
shorthand reference for the object.</FONT></P>
</TD>
<TD WIDTH=14% BGCOLOR="#e6e6ff">
<TD WIDTH=14%>
<P CLASS="western" ALIGN=CENTER><FONT SIZE=1 STYLE="font-size: 8pt">-</FONT></P>
</TD>
<TD WIDTH=13% BGCOLOR="#e6e6ff">
<TD WIDTH=13%>
<P CLASS="western" ALIGN=LEFT><FONT SIZE=1 STYLE="font-size: 8pt">IPTC_TAG_OBJECT_NAME</FONT></P>
</TD>
<TD WIDTH=10% BGCOLOR="#e6e6ff">
<TD WIDTH=10%>
<P CLASS="western" ALIGN=LEFT>“<FONT SIZE=1 STYLE="font-size: 8pt">dc:title”</FONT></P>
</TD>
</TR>

720
ext/metadata/metadataexif.c
View file

@ -114,6 +114,7 @@ metadatamux_exif_create_chunk_from_tag_list (guint8 ** buf, guint32 * size,
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <stdio.h>
/*
* enum and types
@ -124,6 +125,9 @@ typedef struct _tag_MEUserData
GstTagList *taglist;
GstTagMergeMode mode;
ExifShort resolution_unit; /* 2- inches (default), 3- cm */
int altitude_ref; /* -1- not specified, 0- above sea, 1- bellow sea */
gchar latitude_ref; /* k- not specified, 'N'- north, 'S'- south */
gchar longitude_ref; /* k- not specified, 'E'- north, 'W'- south */
} MEUserData;
typedef struct _tag_MapIntStr
@ -203,17 +207,29 @@ static MapIntStr mappedTags[] = {
{EXIF_TAG_SOFTWARE, /*ASCII,*/ EXIF_IFD_0,
GST_TAG_CREATOR_TOOL /*G_TYPE_STRING*/},
{EXIF_TAG_DATE_TIME_DIGITIZED, /*ASCII,*/ EXIF_IFD_EXIF,
GST_TAG_DATE_TIME_DIGITIZED /*G_TYPE_STRING*/},
{EXIF_TAG_DATE_TIME, /*ASCII,*/ EXIF_IFD_0,
GST_TAG_DATE_TIME_MODIFIED /*G_TYPE_STRING*/},
{EXIF_TAG_DATE_TIME_ORIGINAL, /*ASCII,*/ EXIF_IFD_EXIF,
GST_TAG_DATE_TIME_ORIGINAL /*G_TYPE_STRING*/},
{EXIF_TAG_MAKE, /*ASCII,*/ EXIF_IFD_0,
GST_TAG_DEVICE_MAKE /*G_TYPE_STRING*/},
{EXIF_TAG_MODEL, /*ASCII,*/ EXIF_IFD_0,
GST_TAG_DEVICE_MODEL /*G_TYPE_STRING*/},
{EXIF_TAG_MAKER_NOTE, /*UNDEFINED(size any)*/ EXIF_IFD_EXIF,
GST_TAG_EXIF_MAKER_NOTE /*GST_TYPE_BUFFER*/},
{EXIF_TAG_PIXEL_Y_DIMENSION, /*LONG,*/ EXIF_IFD_EXIF,
GST_TAG_IMAGE_HEIGHT /*G_TYPE_INT*/}, /* inches */
GST_TAG_IMAGE_HEIGHT /*G_TYPE_INT*/},
{EXIF_TAG_PIXEL_X_DIMENSION, /*LONG,*/ EXIF_IFD_EXIF,
GST_TAG_IMAGE_WIDTH /*G_TYPE_INT*/}, /* inches */
GST_TAG_IMAGE_WIDTH /*G_TYPE_INT*/},
{EXIF_TAG_X_RESOLUTION, /*RATIONAL,*/ EXIF_IFD_0,
GST_TAG_IMAGE_XRESOLUTION /*GST_TYPE_FRACTION*/}, /* inches */
@ -221,10 +237,24 @@ static MapIntStr mappedTags[] = {
{EXIF_TAG_Y_RESOLUTION, /*RATIONAL,*/ EXIF_IFD_0,
GST_TAG_IMAGE_YRESOLUTION /*GST_TYPE_FRACTION*/}, /* inches */
{EXIF_TAG_GPS_ALTITUDE, /*RATIONAL,*/ EXIF_IFD_GPS,
GST_TAG_GPS_ALTITUDE /*GST_TYPE_FRACTION*/},
{EXIF_TAG_GPS_LATITUDE, /*RATIONAL(3),*/ EXIF_IFD_GPS,
GST_TAG_GPS_LATITUDE /*G_TYPE_STRING*/},
{EXIF_TAG_GPS_LONGITUDE, /*RATIONAL(3),*/ EXIF_IFD_GPS,
GST_TAG_GPS_LONGITUDE /*G_TYPE_STRING*/},
{0, EXIF_IFD_COUNT, NULL}
};
/* *INDENT-ON* */
#define IS_NUMBER(n) ('0' <= (n) && (n) <= '9')
#define IS_FRACT_POSITIVE(n,d) \
( ! ( ((n) >> (sizeof(n)*8-1)) ^ ((d) >> (sizeof(d)*8-1)) ) )
#define CHAR_TO_INT(c) ((c) - '0')
/*
* static helper functions declaration
*/
@ -244,10 +274,25 @@ static void
metadataparse_exif_content_foreach_entry_func (ExifEntry * entry,
void *user_data);
static gboolean
metadataparse_handle_unit_tags (ExifEntry * entry, MEUserData * meudata,
const ExifByteOrder byte_order);
static void
metadatamux_exif_for_each_tag_in_list (const GstTagList * list,
const gchar * tag, gpointer user_data);
static gboolean metadataparse_exif_convert_to_datetime (GString * dt);
static gboolean metadatamux_exif_convert_from_datetime (GString * dt);
static gboolean
metadatamux_exif_convert_from_gps (guint8 * data, const char *lt, char *ref);
static gboolean
metadataparse_exif_convert_to_gps (const guint8 * data, GString * lt,
const int exif_tag, const MEUserData * meudata);
/*
* extern functions implementations
*/
@ -274,7 +319,7 @@ metadataparse_exif_tag_list_add (GstTagList * taglist, GstTagMergeMode mode,
const guint8 *buf;
guint32 size;
ExifData *exif = NULL;
MEUserData user_data = { taglist, mode, 2 };
MEUserData user_data = { taglist, mode, 2, -1, 'k', 'k' };
if (adapter == NULL || (size = gst_adapter_available (adapter)) == 0) {
goto done;
@ -457,7 +502,7 @@ metadataparse_exif_data_foreach_content_func (ExifContent * content,
{
ExifIfd ifd = exif_content_get_ifd (content);
if (ifd == EXIF_IFD_0 || ifd == EXIF_IFD_EXIF) {
if (ifd == EXIF_IFD_0 || ifd == EXIF_IFD_EXIF || ifd == EXIF_IFD_GPS) {
GST_LOG ("\n Content %p: %s (ifd=%d)", content, exif_ifd_get_name (ifd),
ifd);
@ -494,23 +539,8 @@ metadataparse_exif_content_foreach_entry_func (ExifEntry * entry,
return;
byte_order = exif_data_get_byte_order (entry->parent->parent);
if (entry->tag == EXIF_TAG_RESOLUTION_UNIT) {
meudata->resolution_unit = exif_get_short (entry->data, byte_order);
if (meudata->resolution_unit == 3) {
/* if [xy]resolution has alredy been add in cm, replace it in inches */
gfloat value;
if (gst_tag_list_get_float (meudata->taglist, GST_TAG_IMAGE_XRESOLUTION,
&value))
gst_tag_list_add (meudata->taglist, GST_TAG_MERGE_REPLACE,
GST_TAG_IMAGE_XRESOLUTION, value * 0.4f, NULL);
if (gst_tag_list_get_float (meudata->taglist, GST_TAG_IMAGE_YRESOLUTION,
&value))
gst_tag_list_add (meudata->taglist, GST_TAG_MERGE_REPLACE,
GST_TAG_IMAGE_YRESOLUTION, value * 0.4f, NULL);
}
if (metadataparse_handle_unit_tags (entry, meudata, byte_order))
goto done;
}
if (!tag)
goto done;
@ -540,6 +570,14 @@ metadataparse_exif_content_foreach_entry_func (ExifEntry * entry,
numerator = (gint) v_rat.numerator;
denominator = (gint) v_rat.denominator;
}
if (meudata->altitude_ref == 1) {
if (entry->tag == EXIF_TAG_GPS_ALTITUDE) {
if (numerator > 0)
numerator = -numerator;
if (denominator < 0)
denominator = -denominator;
}
}
if (meudata->resolution_unit == 3) {
/* converts from cm to inches */
if (entry->tag == EXIF_TAG_X_RESOLUTION
@ -558,12 +596,50 @@ metadataparse_exif_content_foreach_entry_func (ExifEntry * entry,
gst_tag_list_add (meudata->taglist, meudata->mode, tag, numerator,
denominator, NULL);
} else if (type == GST_TYPE_BUFFER) {
GstBuffer *buf = gst_buffer_new_and_alloc (entry->components);
memcpy (GST_BUFFER_DATA (buf), entry->data, entry->components);
gst_tag_list_add (meudata->taglist, meudata->mode, tag, buf, NULL);
gst_buffer_unref (buf);
} else {
switch (type) {
case G_TYPE_STRING:
gst_tag_list_add (meudata->taglist, meudata->mode, tag,
exif_entry_get_value (entry, buf, sizeof (buf)), NULL);
{
const gchar *str = exif_entry_get_value (entry, buf, sizeof (buf));
GString *value = NULL;
if (entry->tag == EXIF_TAG_DATE_TIME_DIGITIZED
|| entry->tag == EXIF_TAG_DATE_TIME
|| entry->tag == EXIF_TAG_DATE_TIME_ORIGINAL) {
value = g_string_new_len (str, 21);
/* 21 is enough memory to hold "YYYY-MM-DDTHH:MM:SSZ" */
if (metadataparse_exif_convert_to_datetime (value)) {
str = value->str;
} else {
GST_ERROR ("Unexpected date & time format for %s", tag);
str = NULL;
}
} else if (entry->tag == EXIF_TAG_GPS_LATITUDE
|| entry->tag == EXIF_TAG_GPS_LONGITUDE) {
value = g_string_new_len (str, 11);
/* 21 is enough memory to hold "DDD:MM:SSk" */
if (metadataparse_exif_convert_to_gps (entry->data, value,
entry->tag, meudata)) {
str = value->str;
} else {
GST_ERROR ("Unexpected date & time format for %s", tag);
str = NULL;
}
}
if (str)
gst_tag_list_add (meudata->taglist, meudata->mode, tag, str, NULL);
if (value)
g_string_free (value, TRUE);
}
break;
case G_TYPE_INT:
/* fall through */
@ -629,6 +705,122 @@ done:
}
/*
* metadataparse_handle_unit_tags:
* @entry: The exif entry that is supposed to have a tag that makes reference
* to other tag
* @meudata: contains references that can be used afterwards and the tag list
* @byte_order: used to read Exif values
*
* This function tries to parse Exif tags that are not mapped to Gst tags
* but makes reference to another Exif-Gst mapped tag. For example,
* 'resolution-unit' that says the units of 'image-xresolution', so proper
* conversion is done or a hint to the conversion is stored to @meudata
* to be used afterwards.
*
* Returns:
* <itemizedlist>
* <listitem><para>%TRUE if the @entry->tag was handled
* </para></listitem>
* <listitem><para>%FALSE if this function does'n handle @entry->tag
* </para></listitem>
* </itemizedlist>
*/
static gboolean
metadataparse_handle_unit_tags (ExifEntry * entry, MEUserData * meudata,
const ExifByteOrder byte_order)
{
gboolean ret = TRUE;
switch (entry->tag) {
case EXIF_TAG_RESOLUTION_UNIT:
meudata->resolution_unit = exif_get_short (entry->data, byte_order);
if (meudata->resolution_unit == 3) {
/* if [xy]resolution has alredy been add in cm, replace it in inches */
gfloat value;
if (gst_tag_list_get_float (meudata->taglist,
GST_TAG_IMAGE_XRESOLUTION, &value)) {
gst_tag_list_add (meudata->taglist, GST_TAG_MERGE_REPLACE,
GST_TAG_IMAGE_XRESOLUTION, value * 0.4f, NULL);
}
if (gst_tag_list_get_float (meudata->taglist,
GST_TAG_IMAGE_YRESOLUTION, &value)) {
gst_tag_list_add (meudata->taglist, GST_TAG_MERGE_REPLACE,
GST_TAG_IMAGE_YRESOLUTION, value * 0.4f, NULL);
}
}
break;
case EXIF_TAG_GPS_ALTITUDE_REF:
meudata->altitude_ref = entry->data[0];
const GValue *value = gst_tag_list_get_value_index (meudata->taglist,
GST_TAG_GPS_ALTITUDE, 0);
if (value) {
gint n, d;
n = gst_value_get_fraction_numerator (value);
d = gst_value_get_fraction_denominator (value);
if (meudata->altitude_ref == 1) { /* bellow sea */
if (IS_FRACT_POSITIVE (n, d)) { /* if n * d > 0 */
gst_tag_list_add (meudata->taglist, GST_TAG_MERGE_REPLACE,
GST_TAG_GPS_ALTITUDE, -n, d, NULL);
}
}
}
break;
case EXIF_TAG_GPS_LATITUDE_REF:
{
gchar *value = NULL;
meudata->latitude_ref = entry->data[0];
if (gst_tag_list_get_string (meudata->taglist, GST_TAG_GPS_LATITUDE,
&value)) {
GString *str = g_string_new (value);
if (str->len == 10) {
str->str[9] = meudata->latitude_ref;
gst_tag_list_add (meudata->taglist, GST_TAG_MERGE_REPLACE,
GST_TAG_GPS_LATITUDE, str->str, NULL);
}
g_string_free (str, TRUE);
}
}
break;
case EXIF_TAG_GPS_LONGITUDE_REF:
{
gchar *value = NULL;
meudata->longitude_ref = entry->data[0];
if (gst_tag_list_get_string (meudata->taglist, GST_TAG_GPS_LONGITUDE,
&value)) {
GString *str = g_string_new (value);
if (str->len == 10) {
str->str[9] = meudata->longitude_ref;
gst_tag_list_add (meudata->taglist, GST_TAG_MERGE_REPLACE,
GST_TAG_GPS_LONGITUDE, str->str, NULL);
}
g_string_free (str, TRUE);
}
}
break;
default:
ret = FALSE;
break;
}
return ret;
}
/*
* metadatamux_exif_for_each_tag_in_list:
* @list: GStreamer tag list from which @tag belongs to
@ -669,6 +861,21 @@ metadatamux_exif_for_each_tag_in_list (const GstTagList * list,
exif_entry_initialize (entry, exif_tag);
}
if (entry->data == NULL) {
if (entry->tag == EXIF_TAG_GPS_ALTITUDE) {
entry->format = EXIF_FORMAT_RATIONAL;
entry->components = 1;
entry->size = exif_format_get_size (entry->format) * entry->components;
entry->data = g_malloc (entry->size);
} else if (entry->tag == EXIF_TAG_GPS_LATITUDE
|| entry->tag == EXIF_TAG_GPS_LONGITUDE) {
entry->format = EXIF_FORMAT_RATIONAL;
entry->components = 3;
entry->size = exif_format_get_size (entry->format) * entry->components;
entry->data = g_malloc (entry->size);
}
}
if (type == GST_TYPE_FRACTION) {
const GValue *gvalue = gst_tag_list_get_value_index (list, tag, 0);
gint numerator = gst_value_get_fraction_numerator (gvalue);
@ -684,9 +891,35 @@ metadatamux_exif_for_each_tag_in_list (const GstTagList * list,
break;
case EXIF_FORMAT_RATIONAL:
{
ExifRational r = { numerator, denominator };
ExifRational r;
exif_set_rational (entry->data, byte_order, r);
if (entry->tag == EXIF_TAG_GPS_ALTITUDE) {
ExifEntry *ref_entry = NULL;
ref_entry = exif_data_get_entry (ed, EXIF_TAG_GPS_ALTITUDE_REF);
if (ref_entry) {
exif_entry_ref (ref_entry);
} else {
ref_entry = exif_entry_new ();
exif_content_add_entry (ed->ifd[EXIF_IFD_GPS], ref_entry);
exif_entry_initialize (ref_entry, EXIF_TAG_GPS_ALTITUDE_REF);
}
if (ref_entry->data == NULL) {
ref_entry->format = EXIF_FORMAT_BYTE;
ref_entry->components = 1;
ref_entry->size = 1;
ref_entry->data = g_malloc (1);
}
/* if n * d > 0 */
if (IS_FRACT_POSITIVE (numerator, denominator)) {
ref_entry->data[0] = 0;
} else {
ref_entry->data[0] = 1;
}
exif_entry_unref (ref_entry);
}
if (entry->tag == EXIF_TAG_X_RESOLUTION ||
entry->tag == EXIF_TAG_Y_RESOLUTION) {
ExifEntry *unit_entry = NULL;
@ -700,11 +933,28 @@ metadatamux_exif_for_each_tag_in_list (const GstTagList * list,
exif_set_short (unit_entry->data, byte_order, 2);
}
}
r.numerator = numerator;
r.denominator = denominator;
if (numerator < 0)
r.numerator = -numerator;
if (denominator < 0)
r.denominator = -denominator;
exif_set_rational (entry->data, byte_order, r);
}
break;
default:
break;
}
} else if (type == GST_TYPE_BUFFER) {
const GValue *val = NULL;
GstBuffer *buf;
val = gst_tag_list_get_value_index (list, tag, 0);
buf = gst_value_get_buffer (val);
entry->components = GST_BUFFER_SIZE (buf);
entry->size = GST_BUFFER_SIZE (buf);
entry->data = g_malloc (entry->size);
memcpy (entry->data, GST_BUFFER_DATA (buf), entry->size);
} else {
switch (type) {
@ -713,10 +963,59 @@ metadatamux_exif_for_each_tag_in_list (const GstTagList * list,
gchar *value = NULL;
if (gst_tag_list_get_string (list, tag, &value)) {
entry->components = strlen (value) + 1;
entry->size =
exif_format_get_size (entry->format) * entry->components;
entry->data = (guint8 *) value;
if (entry->tag == EXIF_TAG_DATE_TIME_DIGITIZED
|| entry->tag == EXIF_TAG_DATE_TIME
|| entry->tag == EXIF_TAG_DATE_TIME_ORIGINAL) {
GString *datetime = g_string_new_len (value,
20); /* enough memory to hold "YYYY:MM:DD HH:MM:SS" */
if (metadatamux_exif_convert_from_datetime (datetime)) {
} else {
GST_ERROR ("Unexpected date & time format for %s", tag);
}
g_free (value);
value = datetime->str;
g_string_free (datetime, FALSE);
} else if (entry->tag == EXIF_TAG_GPS_LATITUDE
|| entry->tag == EXIF_TAG_GPS_LONGITUDE) {
char ref;
if (metadatamux_exif_convert_from_gps (entry->data, value, &ref)) {
ExifEntry *ref_entry = NULL;
const ExifTag ref_tag = entry->tag == EXIF_TAG_GPS_LATITUDE ?
EXIF_TAG_GPS_LATITUDE_REF : EXIF_TAG_GPS_LONGITUDE_REF;
ref_entry = exif_data_get_entry (ed, ref_tag);
if (ref_entry) {
exif_entry_ref (ref_entry);
} else {
ref_entry = exif_entry_new ();
exif_content_add_entry (ed->ifd[EXIF_IFD_GPS], ref_entry);
exif_entry_initialize (ref_entry, ref_tag);
}
if (ref_entry->data == NULL) {
ref_entry->format = EXIF_FORMAT_ASCII;
ref_entry->components = 2;
ref_entry->size = 2;
ref_entry->data = g_malloc (2);
}
ref_entry->data[0] = ref;
ref_entry->data[1] = 0;
exif_entry_unref (ref_entry);
}
/* has already been add and it is not an Exif ASCII type */
g_free (value);
value = NULL;
}
if (value) {
entry->components = strlen (value) + 1;
entry->size =
exif_format_get_size (entry->format) * entry->components;
entry->data = (guint8 *) value;
value = NULL;
}
}
}
break;
@ -767,5 +1066,370 @@ done:
}
/*
* metadataparse_exif_convert_to_datetime:
* @dt: string containing date_time in format "YYYY:MM:DD HH:MM:SS"
*
* This function converts a exif date_and_time string @dt into the format
* specified by http://www.w3.org/TR/1998/NOTE-datetime-19980827, in which a
* subset of ISO RFC 8601 used by XMP.
* @dt->allocated_len must be not less than 21 to hold enough memory
* hold "YYYY:MM:DD HH:MM:SS" without additional allocation
*
* Returns:
* <itemizedlist>
* <listitem><para>#TRUE if succeded
* </para></listitem>
* <listitem><para>#FALSE if failed
* </para></listitem>
* </itemizedlist>
*/
static gboolean
metadataparse_exif_convert_to_datetime (GString * dt)
{
/* "YYYY:MM:DD HH:MM:SS" */
/* 012345678901234567890 */
if (dt->allocated_len < 21)
return FALSE;
dt->str[4] = '-';
dt->str[7] = '-';
dt->str[10] = 'T';
dt->str[19] = 'Z';
dt->str[20] = '\0';
return TRUE;
}
/*
* metadatamux_exif_convert_from_datetime:
* @dt: string containing date_time in format specified by
* http://www.w3.org/TR/1998/NOTE-datetime-19980827
*
* This function converts a date_and_time string @dt as specified by
* http://www.w3.org/TR/1998/NOTE-datetime-19980827, in which a
* subset of ISO RFC 8601 used by XMP, into Exif date_time format.
* @dt->allocated_len must be not less than 20 to hold enough memory
* hold "YYYY:MM:DD HH:MM:SS" without additional allocation
*
* Returns:
* <itemizedlist>
* <listitem><para>#TRUE if succeded
* </para></listitem>
* <listitem><para>#FALSE if failed
* </para></listitem>
* </itemizedlist>
*/
static gboolean
metadatamux_exif_convert_from_datetime (GString * dt)
{
gboolean ret = TRUE;
char *p = dt->str;
if (dt->allocated_len < 20)
goto error;
/* check YYYY */
if (IS_NUMBER (*p))
p++;
else
goto error;
if (IS_NUMBER (*p))
p++;
else
goto error;
if (IS_NUMBER (*p))
p++;
else
goto error;
if (IS_NUMBER (*p))
p++;
else
goto error;
if (*p == '\0') {
sprintf (p, ":01:01 00:00:00");
goto done;
} else if (*p == '-') {
*p++ = ':';
} else
goto error;
/* check MM */
if (IS_NUMBER (*p))
p++;
else
goto error;
if (IS_NUMBER (*p))
p++;
else
goto error;
if (*p == '\0') {
sprintf (p, ":01 00:00:00");
goto done;
} else if (*p == '-') {
*p++ = ':';
} else
goto error;
/* check DD */
if (IS_NUMBER (*p))
p++;
else
goto error;
if (IS_NUMBER (*p))
p++;
else
goto error;
if (*p == '\0') {
sprintf (p, " 00:00:00");
goto done;
} else if (*p == 'T') {
*p++ = ' ';
} else
goto error;
/* check hh */
if (IS_NUMBER (*p))
p++;
else
goto error;
if (IS_NUMBER (*p))
p++;
else
goto error;
if (*p++ != ':')
goto error;
/* check mm */
if (IS_NUMBER (*p))
p++;
else
goto error;
if (IS_NUMBER (*p))
p++;
else
goto error;
if (*p == ':') {
p++;
} else if (*p == 'Z' || *p == '+' || *p == '-') {
/* FIXME: in case of '+' or '-', would it be better to calculate the
* UTC 'Z' date and time? */
sprintf (p, ":00");
goto done;
} else
goto error;
/* check ss */
if (IS_NUMBER (*p))
p++;
else
goto error;
if (IS_NUMBER (*p))
p++;
else
goto error;
*p = '\0';
/* if here, everything is ok */
goto done;
error:
ret = FALSE;
done:
/* FIXME: do we need to check if the date is valid ? */
if (ret)
dt->len = 19;
return ret;
}
/*
* metadatamux_exif_convert_from_gps:
* @data: pointer to an array of 3 ExifRational in which gps will be stored
* @lt: a string containing the gps coordinate formated as "DDD,MM,SSk"
* or "DDD,MM.mmk" (this is the same as specified in XMP).
* @ref: at the end will store the reference ('N', 'S', 'E', 'W')
*
* This function converts from the format "DDD,MM,SSk" or "DDD,MM.mmk"
* (the same as specified in XMP) into Exif coordinates.
* D- degrees, M- minutes, S- seconds, k- 'N', 'S', 'E', 'W'
* (North, South, East, West)
*
* Returns:
* <itemizedlist>
* <listitem><para>%TRUE if converted sucessfull
* </para></listitem>
* <listitem><para>%FALSE if @lt is bad formated
* </para></listitem>
* </itemizedlist>
*/
static gboolean
metadatamux_exif_convert_from_gps (guint8 * data, const char *lt, char *ref)
{
/* "DDD,MM,SSk" or "DDD,MM.mmk" */
/* 0123456789 0123456789 */
gboolean ret = TRUE;
char *p = (char *) lt;
ExifRational *rt = (ExifRational *) data;
if (strlen (lt) != 10)
goto error;
if (lt[6] == ',' || lt[6] == '.') {
if (IS_NUMBER (*p) && IS_NUMBER (*(p + 1)) && IS_NUMBER (*(p + 2))) {
rt->numerator = CHAR_TO_INT (*p) * 100;
p++;
rt->numerator += CHAR_TO_INT (*p) * 10;
p++;
rt->numerator += CHAR_TO_INT (*p);
p++;
rt->denominator = 1;
} else {
goto error;
}
p++;
rt++;
if (IS_NUMBER (*p) && IS_NUMBER (*(p + 1))) {
rt->numerator = CHAR_TO_INT (*p) * 10;
p++;
rt->numerator += CHAR_TO_INT (*p);
p++;
rt->denominator = 1;
} else {
goto error;
}
p++;
rt++;
if (IS_NUMBER (*p) && IS_NUMBER (*(p + 1))) {
rt->numerator = CHAR_TO_INT (*p) * 10;
p++;
rt->numerator += CHAR_TO_INT (*p);
p++;
rt->denominator = 1;
} else {
goto error;
}
} else {
goto error;
}
if (lt[9] != 'N' && lt[9] != 'S' && lt[9] != 'E' && lt[9] != 'W')
goto error;
*ref = lt[9];
goto done;
error:
ret = FALSE;
done:
return ret;
}
/*
* metadatamux_exif_convert_from_gps:
* @data: pointer to an array of 3 ExifRational from which gps will be read
* @lt: at the end this will have the gps coordinate formated as "DDD,MM,SSk"
* or "DDD,MM.mmk" (this is the same as specified in XMP).
* @exif_tag: EXIF_TAG_GPS_LATITUDE or EXIF_TAG_GPS_LONGITUDE
* @meudata: at the end will store the reference ('N', 'S', 'E', 'W')
* in @meudata->latitude_ref or meudata->longitude_ref depending on @exif_tag
*
* This function converts from Exif coordinates to the format "DDD,MM,SSk"
* or "DDD,MM.mmk" (the same as specified in XMP).
* D- degrees, M- minutes, S- seconds, k- 'N', 'S', 'E', 'W'
* (North, South, East, West)
* Precondition: @lt->allocated_len must be at least 11.
*
* Returns:
* <itemizedlist>
* <listitem><para>%TRUE if converted sucessfull
* </para></listitem>
* <listitem><para>%FALSE if error
* </para></listitem>
* </itemizedlist>
*/
static gboolean
metadataparse_exif_convert_to_gps (const guint8 * data, GString * lt,
const int exif_tag, const MEUserData * meudata)
{
ExifRational *rt = (ExifRational *) data;
char *str = lt->str;
gboolean ret = TRUE;
char ref;
if (lt->allocated_len < 11)
goto error;
if (exif_tag == EXIF_TAG_GPS_LATITUDE)
ref = meudata->latitude_ref;
else if (exif_tag == EXIF_TAG_GPS_LONGITUDE)
ref = meudata->longitude_ref;
else
goto error;
/* DDD - degrees */
sprintf (str, "%03u,", rt->numerator / rt->denominator);
rt++;
str += 4;
/* MM - minutes and SS - seconds */
if (rt->numerator % rt->denominator) {
sprintf (str, "%05.02f", (float) rt->numerator / (float) rt->denominator);
str += 5;
*str++ = ref;
*str = '\0';
} else {
sprintf (str, "%02u,", rt->numerator / rt->denominator);
str += 3;
rt++;
sprintf (str, "%02u", rt->numerator / rt->denominator);
str += 2;
*str++ = ref;
*str = '\0';
}
/* if here, everything is ok */
goto done;
error:
ret = FALSE;
done:
/* FIXME: do we need to check if the date is valid ? */
if (ret)
lt->len = 10;
return ret;
}
#endif /* else (ifndef HAVE_EXIF) */

69
ext/metadata/metadatatags.c
View file

@ -364,29 +364,98 @@ metadata_tags_exif_register (void)
"The name of the first known tool used to create the resource."
" Or firmware or driver version of device", NULL);
/* date and time tags */
/* formated as subset of ISO RFC 8601 as described in
* http://www.w3.org/TR/1998/NOTE-datetime-19980827
* which is:
* YYYY
* YYYY-MM
* YYYY-MM-DD
* YYYY-MM-DDThh:mmTZD
* YYYY-MM-DDThh:mm:ssTZD
* YYYY-MM-DDThh:mm:ss.sTZD
* where:
* YYYY = four-digit year
* MM = two-digit month (01=January)
* DD = two-digit day of month (01 through 31)
* hh = two digits of hour (00 through 23)
* mm = two digits of minute (00 through 59)
* ss = two digits of second (00 through 59)
* s = one or more digits representing a decimal fraction of a second
* TZD = time zone designator (Z or +hh:mm or -hh:mm)
*/
gst_tag_register (GST_TAG_DATE_TIME_DIGITIZED, GST_TAG_FLAG_META,
G_TYPE_STRING, GST_TAG_DATE_TIME_DIGITIZED,
"Date/Time of image digitized", NULL);
gst_tag_register (GST_TAG_DATE_TIME_MODIFIED, GST_TAG_FLAG_META,
G_TYPE_STRING, GST_TAG_DATE_TIME_MODIFIED,
"Date/Time of image was last modified", NULL);
gst_tag_register (GST_TAG_DATE_TIME_ORIGINAL, GST_TAG_FLAG_META,
G_TYPE_STRING, GST_TAG_DATE_TIME_ORIGINAL,
"Date/Time of original image taken", NULL);
/* devices tags */
gst_tag_register (GST_TAG_DEVICE_MAKE, GST_TAG_FLAG_META,
G_TYPE_STRING, GST_TAG_DEVICE_MAKE,
"The manufacturer of the recording equipment", NULL);
gst_tag_register (GST_TAG_DEVICE_MODEL, GST_TAG_FLAG_META, G_TYPE_STRING,
GST_TAG_DEVICE_MODEL, "The model name or model number of the equipment",
NULL);
/* exif specific tags */
gst_tag_register (GST_TAG_EXIF_MAKER_NOTE, GST_TAG_FLAG_META,
GST_TYPE_BUFFER, GST_TAG_EXIF_MAKER_NOTE, "Camera private data", NULL);
/* image tags */
gst_tag_register (GST_TAG_IMAGE_HEIGHT, GST_TAG_FLAG_META,
G_TYPE_UINT, GST_TAG_IMAGE_HEIGHT, "Image height in pixels", NULL);
gst_tag_register (GST_TAG_IMAGE_WIDTH, GST_TAG_FLAG_META,
G_TYPE_UINT, GST_TAG_IMAGE_WIDTH, "Image width in pixels", NULL);
gst_tag_register (GST_TAG_IMAGE_XRESOLUTION, GST_TAG_FLAG_META,
GST_TYPE_FRACTION, GST_TAG_IMAGE_XRESOLUTION,
"Horizontal resolution in pixels per inch", NULL);
gst_tag_register (GST_TAG_IMAGE_YRESOLUTION, GST_TAG_FLAG_META,
GST_TYPE_FRACTION, GST_TAG_IMAGE_YRESOLUTION,
"Vertical resolution in pixels per inch", NULL);
/* GPS tags */
/* Altitude:
* positive values means above the sea level
* negative values means under the sea level
*/
gst_tag_register (GST_TAG_GPS_ALTITUDE, GST_TAG_FLAG_META,
GST_TYPE_FRACTION, GST_TAG_GPS_ALTITUDE, "Altitude", NULL);
/* Latitude:
* "DDD,MM,SSk" or "DDD,MM.mmk" fixed size string where:
* D- degrees, M- minutes, S-seconds,
* mm- fraction of minutes, k- N (north) or S (south)
*/
gst_tag_register (GST_TAG_GPS_LATITUDE, GST_TAG_FLAG_META,
G_TYPE_STRING, GST_TAG_GPS_LATITUDE, "Latitude", NULL);
/* Longitude:
* "DDD,MM,SSk" or "DDD,MM.mmk" fixed size string where:
* D- degrees, M- minutes, S-seconds,
* mm- fraction of minutes, k- N (north) or S (south)
*/
gst_tag_register (GST_TAG_GPS_LONGITUDE, GST_TAG_FLAG_META,
G_TYPE_STRING, GST_TAG_GPS_LONGITUDE, "Longitude", NULL);
}
/*

19
ext/metadata/metadatatags.h
View file

@ -102,14 +102,33 @@ typedef enum {
#define GST_TAG_CREATOR_TOOL "creator-tool"
#define GST_TAG_DATE_TIME_DIGITIZED "date-time-digitized"
#define GST_TAG_DATE_TIME_MODIFIED "date-time-modified"
#define GST_TAG_DATE_TIME_ORIGINAL "date-time-original"
#define GST_TAG_DEVICE_MAKE "device-make"
#define GST_TAG_DEVICE_MODEL "device-model"
#define GST_TAG_EXIF_MAKER_NOTE "exif-maker-note"
#define GST_TAG_IMAGE_HEIGHT "image-height"
#define GST_TAG_IMAGE_WIDTH "image-width"
#define GST_TAG_IMAGE_XRESOLUTION "image-xresolution"
#define GST_TAG_IMAGE_YRESOLUTION "image-yresolution"
#define GST_TAG_GPS_ALTITUDE "gps-altitude"
#define GST_TAG_GPS_AREA_INFORMATION ""
#define GST_TAG_GPS_DIFFERENTIAL ""
#define GST_TAG_GPS_DOP ""
#define GST_TAG_GPS_IMAGE_DIRECTION ""
#define GST_TAG_GPS_LATITUDE "gps-latitude"
#define GST_TAG_GPS_LONGITUDE "gps-longitude"
#define GST_TAG_GPS_MEASURE_MODE ""
#define GST_TAG_GPS_PROCESSING_METHOD ""
#define GST_TAG_GPS_SATELLITES ""
#define GST_TAG_GPS_SPEED ""
#define GST_TAG_GPS_TRACK ""
/* *INDENT-ON* */
/*

34
tests/icles/metadata_editor.c
View file

@ -136,6 +136,30 @@ GString *filename = NULL;
* Helper functions
*/
static void
dump_tag_buffer(const char *tag, guint8 * buf, guint32 size)
{
guint32 i;
printf("\nDumping %s (size = %u)\n\n", tag, size);
for(i=0; i<size; ++i) {
if (i % 16 == 0)
printf("%04x:%04x | ", i >> 16, i & 0xFFFF);
printf("%02x", buf[i]);
if (i % 16 != 15)
printf(" ");
else
printf("\n");
}
printf("\n\n");
}
static void
insert_tag_on_tree (const GstTagList * list, const gchar * tag,
gpointer user_data)
@ -150,6 +174,13 @@ insert_tag_on_tree (const GstTagList * list, const gchar * tag,
if (gst_tag_get_type (tag) == G_TYPE_STRING) {
if (!gst_tag_list_get_string_index (list, tag, 0, &str))
g_assert_not_reached ();
} else if ( gst_tag_get_type (tag) == GST_TYPE_BUFFER ) {
const GValue *val = NULL;
GstBuffer *buf;
val = gst_tag_list_get_value_index (list, tag, 0);
buf = gst_value_get_buffer (val);
dump_tag_buffer(tag, GST_BUFFER_DATA(buf), GST_BUFFER_SIZE(buf));
str = g_strdup("It has been printed to stdout");
} else {
str = g_strdup_value_contents (gst_tag_list_get_value_index (list, tag, 0));
}
@ -215,7 +246,8 @@ change_tag_list (GstTagList ** list, const gchar * tag, const gchar * value)
}
break;
default:
g_printerr ("Tags of type '%s' are not supported yet.\n",
g_printerr ("Tags of type '%s' are not supported yet for editing"
" by this application.\n",
g_type_name (type));
break;
}