Replaced mediainfo calls by getid3

1 files changed, 130 insertions, 0 deletions

diff --git a/getid3/module.graphic.pcd.php b/getid3/module.graphic.pcd.php
new file mode 100644
index 0000000..60efabd
--- /dev/null
+++ b/getid3/module.graphic.pcd.php
@@ -0,0 +1,130 @@
+<?php
+/////////////////////////////////////////////////////////////////
+/// getID3() by James Heinrich <info@getid3.org>               //
+//  available at http://getid3.sourceforge.net                 //
+//            or http://www.getid3.org                         //
+/////////////////////////////////////////////////////////////////
+// See readme.txt for more details                             //
+/////////////////////////////////////////////////////////////////
+//                                                             //
+// module.graphic.pcd.php                                      //
+// module for analyzing PhotoCD (PCD) Image files              //
+// dependencies: NONE                                          //
+//                                                            ///
+/////////////////////////////////////////////////////////////////
+
+
+class getid3_pcd
+{
+	function getid3_pcd(&$fd, &$ThisFileInfo, $ExtractData=0) {
+		$ThisFileInfo['fileformat']          = 'pcd';
+		$ThisFileInfo['video']['dataformat'] = 'pcd';
+		$ThisFileInfo['video']['lossless']   = false;
+
+
+		fseek($fd, $ThisFileInfo['avdataoffset'] + 72, SEEK_SET);
+
+		$PCDflags = fread($fd, 1);
+		$PCDisVertical = ((ord($PCDflags) & 0x01) ? true : false);
+
+
+		if ($PCDisVertical) {
+			$ThisFileInfo['video']['resolution_x'] = 3072;
+			$ThisFileInfo['video']['resolution_y'] = 2048;
+		} else {
+			$ThisFileInfo['video']['resolution_x'] = 2048;
+			$ThisFileInfo['video']['resolution_y'] = 3072;
+		}
+
+
+		if ($ExtractData > 3) {
+
+			$ThisFileInfo['error'][] = 'Cannot extract PSD image data for detail levels above BASE (3)';
+
+		} elseif ($ExtractData > 0) {
+
+			$PCD_levels[1] = array( 192,  128, 0x02000); // BASE/16
+			$PCD_levels[2] = array( 384,  256, 0x0B800); // BASE/4
+			$PCD_levels[3] = array( 768,  512, 0x30000); // BASE
+			//$PCD_levels[4] = array(1536, 1024,    ??); // BASE*4  - encrypted with Kodak-proprietary compression/encryption
+			//$PCD_levels[5] = array(3072, 2048,    ??); // BASE*16 - encrypted with Kodak-proprietary compression/encryption
+			//$PCD_levels[6] = array(6144, 4096,    ??); // BASE*64 - encrypted with Kodak-proprietary compression/encryption; PhotoCD-Pro only
+
+			list($PCD_width, $PCD_height, $PCD_dataOffset) = $PCD_levels[3];
+
+			fseek($fd, $ThisFileInfo['avdataoffset'] + $PCD_dataOffset, SEEK_SET);
+
+			for ($y = 0; $y < $PCD_height; $y += 2) {
+				// The image-data of these subtypes start at the respective offsets of 02000h, 0b800h and 30000h.
+				// To decode the YcbYr to the more usual RGB-code, three lines of data have to be read, each
+				// consisting of ‘w’ bytes, where ‘w’ is the width of the image-subtype. The first ‘w’ bytes and
+				// the first half of the third ‘w’ bytes contain data for the first RGB-line, the second ‘w’ bytes
+				// and the second half of the third ‘w’ bytes contain data for a second RGB-line.
+
+				$PCD_data_Y1 = fread($fd, $PCD_width);
+				$PCD_data_Y2 = fread($fd, $PCD_width);
+				$PCD_data_Cb = fread($fd, intval(round($PCD_width / 2)));
+				$PCD_data_Cr = fread($fd, intval(round($PCD_width / 2)));
+
+				for ($x = 0; $x < $PCD_width; $x++) {
+					if ($PCDisVertical) {
+						$ThisFileInfo['pcd']['data'][$PCD_width - $x][$y]     = $this->YCbCr2RGB(ord($PCD_data_Y1{$x}), ord($PCD_data_Cb{floor($x / 2)}), ord($PCD_data_Cr{floor($x / 2)}));
+						$ThisFileInfo['pcd']['data'][$PCD_width - $x][$y + 1] = $this->YCbCr2RGB(ord($PCD_data_Y2{$x}), ord($PCD_data_Cb{floor($x / 2)}), ord($PCD_data_Cr{floor($x / 2)}));
+					} else {
+						$ThisFileInfo['pcd']['data'][$y][$x]                  = $this->YCbCr2RGB(ord($PCD_data_Y1{$x}), ord($PCD_data_Cb{floor($x / 2)}), ord($PCD_data_Cr{floor($x / 2)}));
+						$ThisFileInfo['pcd']['data'][$y + 1][$x]              = $this->YCbCr2RGB(ord($PCD_data_Y2{$x}), ord($PCD_data_Cb{floor($x / 2)}), ord($PCD_data_Cr{floor($x / 2)}));
+					}
+				}
+			}
+
+			// Example for plotting extracted data
+			//getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.audio.ac3.php', __FILE__, true);
+			//if ($PCDisVertical) {
+			//	$BMPinfo['resolution_x'] = $PCD_height;
+			//	$BMPinfo['resolution_y'] = $PCD_width;
+			//} else {
+			//	$BMPinfo['resolution_x'] = $PCD_width;
+			//	$BMPinfo['resolution_y'] = $PCD_height;
+			//}
+			//$BMPinfo['bmp']['data'] = $ThisFileInfo['pcd']['data'];
+			//getid3_bmp::PlotBMP($BMPinfo);
+			//exit;
+
+		}
+
+	}
+
+	function YCbCr2RGB($Y, $Cb, $Cr) {
+		static $YCbCr_constants = array();
+		if (empty($YCbCr_constants)) {
+			$YCbCr_constants['red']['Y']    =  0.0054980 * 256;
+			$YCbCr_constants['red']['Cb']   =  0.0000000 * 256;
+			$YCbCr_constants['red']['Cr']   =  0.0051681 * 256;
+			$YCbCr_constants['green']['Y']  =  0.0054980 * 256;
+			$YCbCr_constants['green']['Cb'] = -0.0015446 * 256;
+			$YCbCr_constants['green']['Cr'] = -0.0026325 * 256;
+			$YCbCr_constants['blue']['Y']   =  0.0054980 * 256;
+			$YCbCr_constants['blue']['Cb']  =  0.0079533 * 256;
+			$YCbCr_constants['blue']['Cr']  =  0.0000000 * 256;
+		}
+
+		$RGBcolor = array('red'=>0, 'green'=>0, 'blue'=>0);
+		foreach ($RGBcolor as $rgbname => $dummy) {
+			$RGBcolor[$rgbname] = max(0,
+										min(255,
+											intval(
+												round(
+													($YCbCr_constants[$rgbname]['Y'] * $Y) +
+													($YCbCr_constants[$rgbname]['Cb'] * ($Cb - 156)) +
+													($YCbCr_constants[$rgbname]['Cr'] * ($Cr - 137))
+												)
+											)
+										)
+									);
+		}
+		return (($RGBcolor['red'] * 65536) + ($RGBcolor['green'] * 256) + $RGBcolor['blue']);
+	}
+
+}
+
+?>
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