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<html>
<head>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=windows-1252">
<link rel=StyleSheet href="style.css" type="text/css">
<META NAME="keywords" CONTENT="JPEG Metadata Application Segments APP0 APP1 APP2 APP3 APP12 APP13 APP14 EXIF DCF XMP RDF Photoshop IRB IPTC DCMI JFIF">
<title>The PHP JPEG Metadata Toolkit - Documentation</title>
</head>
<body>
<div class="headerbar">
<H1 align="center" style="padding:15">The PHP JPEG Metadata Toolkit - Documentation</H1>
</div>
<a href="index.html">Go to Documentation - Home</a>
<div class="maintext">
<h2>Picture Info Function Reference</h2>
<p>
The "App 12" segment is used by many older digital cameras, and contains
text called "Picture Info"
</p>
<br>
<br>
<table border cellpadding=8 cellspacing=0>
<tr>
<td>Function:</td>
<td colspan=2><b>get_jpeg_App12_Pic_Info</b></td>
</tr>
<tr>
<td>Description:</td>
<td colspan=2>
Retrieves the Picture Info text information from an App12
JPEG segment and returns it as a string. Uses information
supplied by the get_jpeg_header_data function
</td>
<tr>
<tr>
<td>Parameters:</td>
<td width=1%>jpeg_header_data</td>
<td>a JPEG header data array in the same format as from get_jpeg_header_data</td>
</tr>
<tr>
<td rowspan=2>Returns:</td>
<td>App12_Head, App12_Text</td>
<td>The text preceeding the Picture Info (often the camera manufacturer's name), plus the Picture Info Text</td>
</tr>
<tr>
<td>FALSE, FALSE</td>
<td>if an APP 12 Picture Info segment could not be found</td>
</tr>
</table>
<br>
<br>
<br>
<br>
<table border cellpadding=8 cellspacing=0>
<tr>
<td>Function:</td>
<td colspan=2><b>put_jpeg_App12_Pic_Info</b></td>
</tr>
<tr>
<td>Description:</td>
<td colspan=2>
Writes Picture Info text into an App12 JPEG segment. Uses information
supplied by the get_jpeg_header_data function. If no App12 exists
already a new one is created, otherwise it replaces the old one
</td>
<tr>
<tr>
<td rowspan=2>Parameters:</td>
<td width=1%>jpeg_header_data</td>
<td>a JPEG header data array in the same format as from get_jpeg_header_data</td>
</tr>
<tr>
<td width=1%>new_Pic_Info_Text</td>
<td>The Picture Info Text, including any header that is required</td>
</tr>
<tr>
<td rowspan=2>Returns:</td>
<td>jpeg_header_data</td>
<td>the JPEG header array with the new Picture info segment inserted</td>
</tr>
<tr>
<td>FALSE</td>
<td>if an error occured</td>
</tr>
</table>
<br>
<br>
<br>
<br>
<table border cellpadding=8 cellspacing=0>
<tr>
<td>Function:</td>
<td colspan=2><b>Interpret_App12_Pic_Info_to_HTML</b></td>
</tr>
<tr>
<td>Description:</td>
<td colspan=2>
Generates html showing the contents of any JPEG App12 Picture Info segment
</td>
<tr>
<tr>
<td rowspan=1>Parameters:</td>
<td width=1%>jpeg_header_data</td>
<td>the JPEG header data, as retrieved from the get_jpeg_header_data function</td>
</tr>
<tr>
<td rowspan=1>Returns:</td>
<td>output</td>
<td>the HTML</td>
</tr>
</table>
<br>
<br>
</div>
</body>
</html>
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