PNGMetadataExtractor Class Reference

PNG frame counter. More...

List of all members.

Static Public Member Functions
static	getMetadata ($filename)
Public Attributes
const	MAX_CHUNK_SIZE = 3145728
const	VERSION = 1
Static Public Attributes
static	$CRC_size
static	$png_sig
static	$text_chunks
Static Private Member Functions
static	read ($fh, $size)
	Read a chunk, checking to make sure its not too big.

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Detailed Description

PNG frame counter.

Definition at line 17 of file PNGMetadataExtractor.php.

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Member Function Documentation

static PNGMetadataExtractor::getMetadata

(

$

filename

)

[static]

Definition at line 25 of file PNGMetadataExtractor.php.

References $t, read(), wfDebug(), wfRestoreWarnings(), wfSuppressWarnings(), and wfTimestamp().

Referenced by BitmapMetadataHandler\PNG(), PNGMetadataExtractorTest\testPngNativeText(), PNGMetadataExtractorTest\testPngNativeTextNonAscii(), and PNGMetadataExtractorTest\testPngNativetZtxt().

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static PNGMetadataExtractor::read	(	$	fh,
		$	size
	)		[static, private]

Read a chunk, checking to make sure its not too big.

Parameters:

$fh	resource The file handle
$size	Integer size in bytes.

Exceptions:

Exception

if too big.

Returns:

String The chunk.

Definition at line 404 of file PNGMetadataExtractor.php.

References $size.

Referenced by getMetadata().

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Member Data Documentation

PNGMetadataExtractor::$CRC_size [static]

Definition at line 19 of file PNGMetadataExtractor.php.

PNGMetadataExtractor::$png_sig [static]

Definition at line 18 of file PNGMetadataExtractor.php.

PNGMetadataExtractor::$text_chunks [static]

Definition at line 20 of file PNGMetadataExtractor.php.

const PNGMetadataExtractor::MAX_CHUNK_SIZE = 3145728

Definition at line 23 of file PNGMetadataExtractor.php.

const PNGMetadataExtractor::VERSION = 1

Definition at line 22 of file PNGMetadataExtractor.php.

Referenced by PNGHandler\isMetadataValid(), and BitmapMetadataHandler\PNG().

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The documentation for this class was generated from the following file:

• includes/media/PNGMetadataExtractor.php