Store original media dimensions as additional header

[lhc/web/wiklou.git] / includes / media / PNGMetadataExtractor.php

diff --git a/includes/media/PNGMetadataExtractor.php b/includes/media/PNGMetadataExtractor.php
index d0517d7..1cb2ec0 100644 (file)
--- a/includes/media/PNGMetadataExtractor.php
+++ b/includes/media/PNGMetadataExtractor.php
@@ -121,6 +121,8 @@ class PNGMetadataExtractor {
                                if ( !$buf || strlen( $buf ) < $chunk_size ) {
                                        throw new Exception( __METHOD__ . ": Read error" );
                                }
+                               $width = unpack( 'N', substr( $buf, 0, 4 ) )[1];
+                               $height = unpack( 'N', substr( $buf, 4, 4 ) )[1];
                                $bitDepth = ord( substr( $buf, 8, 1 ) );
                                // Detect the color type in British English as per the spec
                                // https://www.w3.org/TR/PNG/#11IHDR
@@ -404,6 +406,8 @@ class PNGMetadataExtractor {
                        'text' => $text,
                        'bitDepth' => $bitDepth,
                        'colorType' => $colorType,
+                       'width' => $width,
+                       'height' => $height,
                ];
        }