Replaced mediainfo calls by getid3

1 files changed, 295 insertions, 0 deletions

diff --git a/getid3/write.real.php b/getid3/write.real.php
new file mode 100644
index 0000000..1e0240c
--- /dev/null
+++ b/getid3/write.real.php
@@ -0,0 +1,295 @@
+<?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                             //
+/////////////////////////////////////////////////////////////////
+//                                                             //
+// write.real.php                                              //
+// module for writing RealAudio/RealVideo tags                 //
+// dependencies: module.tag.real.php                           //
+//                                                            ///
+/////////////////////////////////////////////////////////////////
+
+class getid3_write_real
+{
+	var $filename;
+	var $tag_data     = array();
+	var $warnings     = array(); // any non-critical errors will be stored here
+	var $errors       = array(); // any critical errors will be stored here
+	var $paddedlength = 512;     // minimum length of CONT tag in bytes
+
+	function getid3_write_real() {
+		return true;
+	}
+
+	function WriteReal() {
+		// File MUST be writeable - CHMOD(646) at least
+		if (is_writeable($this->filename)) {
+			if ($fp_source = @fopen($this->filename, 'r+b')) {
+
+				// Initialize getID3 engine
+				$getID3 = new getID3;
+				$OldThisFileInfo = $getID3->analyze($this->filename);
+				if (empty($OldThisFileInfo['real']['chunks']) && !empty($OldThisFileInfo['real']['old_ra_header'])) {
+					$this->errors[] = 'Cannot write Real tags on old-style file format';
+					fclose($fp_source);
+					return false;
+				}
+
+				if (empty($OldThisFileInfo['real']['chunks'])) {
+					$this->errors[] = 'Cannot write Real tags because cannot find DATA chunk in file';
+					fclose($fp_source);
+					return false;
+				}
+				foreach ($OldThisFileInfo['real']['chunks'] as $chunknumber => $chunkarray) {
+					$oldChunkInfo[$chunkarray['name']] = $chunkarray;
+				}
+				if (!empty($oldChunkInfo['CONT']['length'])) {
+					$this->paddedlength = max($oldChunkInfo['CONT']['length'], $this->paddedlength);
+				}
+
+				$new_CONT_tag_data = $this->GenerateCONTchunk();
+				$new_PROP_tag_data = $this->GeneratePROPchunk($OldThisFileInfo['real']['chunks'], $new_CONT_tag_data);
+				$new__RMF_tag_data = $this->GenerateRMFchunk($OldThisFileInfo['real']['chunks']);
+
+				if (@$oldChunkInfo['.RMF']['length'] == strlen($new__RMF_tag_data)) {
+					fseek($fp_source, $oldChunkInfo['.RMF']['offset'], SEEK_SET);
+					fwrite($fp_source, $new__RMF_tag_data);
+				} else {
+					$this->errors[] = 'new .RMF tag ('.strlen($new__RMF_tag_data).' bytes) different length than old .RMF tag ('.$oldChunkInfo['.RMF']['length'].' bytes)';
+					fclose($fp_source);
+					return false;
+				}
+
+				if (@$oldChunkInfo['PROP']['length'] == strlen($new_PROP_tag_data)) {
+					fseek($fp_source, $oldChunkInfo['PROP']['offset'], SEEK_SET);
+					fwrite($fp_source, $new_PROP_tag_data);
+				} else {
+					$this->errors[] = 'new PROP tag ('.strlen($new_PROP_tag_data).' bytes) different length than old PROP tag ('.$oldChunkInfo['PROP']['length'].' bytes)';
+					fclose($fp_source);
+					return false;
+				}
+
+				if (@$oldChunkInfo['CONT']['length'] == strlen($new_CONT_tag_data)) {
+
+					// new data length is same as old data length - just overwrite
+					fseek($fp_source, $oldChunkInfo['CONT']['offset'], SEEK_SET);
+					fwrite($fp_source, $new_CONT_tag_data);
+					fclose($fp_source);
+					return true;
+
+				} else {
+
+					if (empty($oldChunkInfo['CONT'])) {
+						// no existing CONT chunk
+						$BeforeOffset = $oldChunkInfo['DATA']['offset'];
+						$AfterOffset  = $oldChunkInfo['DATA']['offset'];
+					} else {
+						// new data is longer than old data
+						$BeforeOffset = $oldChunkInfo['CONT']['offset'];
+						$AfterOffset  = $oldChunkInfo['CONT']['offset'] + $oldChunkInfo['CONT']['length'];
+					}
+					if ($tempfilename = tempnam('*', 'getID3')) {
+						ob_start();
+						if ($fp_temp = fopen($tempfilename, 'wb')) {
+
+							rewind($fp_source);
+							fwrite($fp_temp, fread($fp_source, $BeforeOffset));
+							fwrite($fp_temp, $new_CONT_tag_data);
+							fseek($fp_source, $AfterOffset, SEEK_SET);
+							while ($buffer = fread($fp_source, GETID3_FREAD_BUFFER_SIZE)) {
+								fwrite($fp_temp, $buffer, strlen($buffer));
+							}
+							fclose($fp_temp);
+
+							if (copy($tempfilename, $this->filename)) {
+								unlink($tempfilename);
+								fclose($fp_source);
+								return true;
+							}
+							unlink($tempfilename);
+							$this->errors[] = 'FAILED: copy('.$tempfilename.', '.$this->filename.') - '.strip_tags(ob_get_contents());
+
+						} else {
+
+							$this->errors[] = 'Could not open '.$tempfilename.' mode "wb" - '.strip_tags(ob_get_contents());
+
+						}
+						ob_end_clean();
+					}
+					fclose($fp_source);
+					return false;
+
+				}
+
+
+			} else {
+				$this->errors[] = 'Could not open '.$this->filename.' mode "r+b"';
+				return false;
+			}
+		}
+		$this->errors[] = 'File is not writeable: '.$this->filename;
+		return false;
+	}
+
+	function GenerateRMFchunk(&$chunks) {
+		$oldCONTexists = false;
+		foreach ($chunks as $key => $chunk) {
+			$chunkNameKeys[$chunk['name']] = $key;
+			if ($chunk['name'] == 'CONT') {
+				$oldCONTexists = true;
+			}
+		}
+		$newHeadersCount = $chunks[$chunkNameKeys['.RMF']]['headers_count'] + ($oldCONTexists ? 0 : 1);
+
+		$RMFchunk  = "\x00\x00"; // object version
+		$RMFchunk .= getid3_lib::BigEndian2String($chunks[$chunkNameKeys['.RMF']]['file_version'], 4);
+		$RMFchunk .= getid3_lib::BigEndian2String($newHeadersCount,                                4);
+
+		$RMFchunk  = '.RMF'.getid3_lib::BigEndian2String(strlen($RMFchunk) + 8, 4).$RMFchunk; // .RMF chunk identifier + chunk length
+		return $RMFchunk;
+	}
+
+	function GeneratePROPchunk(&$chunks, &$new_CONT_tag_data) {
+		$old_CONT_length = 0;
+		$old_DATA_offset = 0;
+		$old_INDX_offset = 0;
+		foreach ($chunks as $key => $chunk) {
+			$chunkNameKeys[$chunk['name']] = $key;
+			if ($chunk['name'] == 'CONT') {
+				$old_CONT_length = $chunk['length'];
+			} elseif ($chunk['name'] == 'DATA') {
+				if (!$old_DATA_offset) {
+					$old_DATA_offset = $chunk['offset'];
+				}
+			} elseif ($chunk['name'] == 'INDX') {
+				if (!$old_INDX_offset) {
+					$old_INDX_offset = $chunk['offset'];
+				}
+			}
+		}
+		$CONTdelta = strlen($new_CONT_tag_data) - $old_CONT_length;
+
+		$PROPchunk  = "\x00\x00"; // object version
+		$PROPchunk .= getid3_lib::BigEndian2String($chunks[$chunkNameKeys['PROP']]['max_bit_rate'],    4);
+		$PROPchunk .= getid3_lib::BigEndian2String($chunks[$chunkNameKeys['PROP']]['avg_bit_rate'],    4);
+		$PROPchunk .= getid3_lib::BigEndian2String($chunks[$chunkNameKeys['PROP']]['max_packet_size'], 4);
+		$PROPchunk .= getid3_lib::BigEndian2String($chunks[$chunkNameKeys['PROP']]['avg_packet_size'], 4);
+		$PROPchunk .= getid3_lib::BigEndian2String($chunks[$chunkNameKeys['PROP']]['num_packets'],     4);
+		$PROPchunk .= getid3_lib::BigEndian2String($chunks[$chunkNameKeys['PROP']]['duration'],        4);
+		$PROPchunk .= getid3_lib::BigEndian2String($chunks[$chunkNameKeys['PROP']]['preroll'],         4);
+		$PROPchunk .= getid3_lib::BigEndian2String(max(0, $old_INDX_offset + $CONTdelta),              4);
+		$PROPchunk .= getid3_lib::BigEndian2String(max(0, $old_DATA_offset + $CONTdelta),              4);
+		$PROPchunk .= getid3_lib::BigEndian2String($chunks[$chunkNameKeys['PROP']]['num_streams'],     2);
+		$PROPchunk .= getid3_lib::BigEndian2String($chunks[$chunkNameKeys['PROP']]['flags_raw'],       2);
+
+		$PROPchunk  = 'PROP'.getid3_lib::BigEndian2String(strlen($PROPchunk) + 8, 4).$PROPchunk; // PROP chunk identifier + chunk length
+		return $PROPchunk;
+	}
+
+	function GenerateCONTchunk() {
+		foreach ($this->tag_data as $key => $value) {
+			// limit each value to 0xFFFF bytes
+			$this->tag_data[$key] = substr($value, 0, 65535);
+		}
+
+		$CONTchunk  = "\x00\x00"; // object version
+
+		$CONTchunk .= getid3_lib::BigEndian2String(strlen(@$this->tag_data['title']), 2);
+		$CONTchunk .= @$this->tag_data['title'];
+
+		$CONTchunk .= getid3_lib::BigEndian2String(strlen(@$this->tag_data['artist']), 2);
+		$CONTchunk .= @$this->tag_data['artist'];
+
+		$CONTchunk .= getid3_lib::BigEndian2String(strlen(@$this->tag_data['copyright']), 2);
+		$CONTchunk .= @$this->tag_data['copyright'];
+
+		$CONTchunk .= getid3_lib::BigEndian2String(strlen(@$this->tag_data['comment']), 2);
+		$CONTchunk .= @$this->tag_data['comment'];
+
+		if ($this->paddedlength > (strlen($CONTchunk) + 8)) {
+			$CONTchunk .= str_repeat("\x00", $this->paddedlength - strlen($CONTchunk) - 8);
+		}
+
+		$CONTchunk  = 'CONT'.getid3_lib::BigEndian2String(strlen($CONTchunk) + 8, 4).$CONTchunk; // CONT chunk identifier + chunk length
+
+		return $CONTchunk;
+	}
+
+	function RemoveReal() {
+		// File MUST be writeable - CHMOD(646) at least
+		if (is_writeable($this->filename)) {
+			if ($fp_source = @fopen($this->filename, 'r+b')) {
+
+				// Initialize getID3 engine
+				$getID3 = new getID3;
+				$OldThisFileInfo = $getID3->analyze($this->filename);
+				if (empty($OldThisFileInfo['real']['chunks']) && !empty($OldThisFileInfo['real']['old_ra_header'])) {
+					$this->errors[] = 'Cannot remove Real tags from old-style file format';
+					fclose($fp_source);
+					return false;
+				}
+
+				if (empty($OldThisFileInfo['real']['chunks'])) {
+					$this->errors[] = 'Cannot remove Real tags because cannot find DATA chunk in file';
+					fclose($fp_source);
+					return false;
+				}
+				foreach ($OldThisFileInfo['real']['chunks'] as $chunknumber => $chunkarray) {
+					$oldChunkInfo[$chunkarray['name']] = $chunkarray;
+				}
+
+				if (empty($oldChunkInfo['CONT'])) {
+					// no existing CONT chunk
+					fclose($fp_source);
+					return true;
+				}
+
+				$BeforeOffset = $oldChunkInfo['CONT']['offset'];
+				$AfterOffset  = $oldChunkInfo['CONT']['offset'] + $oldChunkInfo['CONT']['length'];
+				if ($tempfilename = tempnam('*', 'getID3')) {
+					ob_start();
+					if ($fp_temp = fopen($tempfilename, 'wb')) {
+
+						rewind($fp_source);
+						fwrite($fp_temp, fread($fp_source, $BeforeOffset));
+						fseek($fp_source, $AfterOffset, SEEK_SET);
+						while ($buffer = fread($fp_source, GETID3_FREAD_BUFFER_SIZE)) {
+							fwrite($fp_temp, $buffer, strlen($buffer));
+						}
+						fclose($fp_temp);
+
+						if (copy($tempfilename, $this->filename)) {
+							unlink($tempfilename);
+							fclose($fp_source);
+							return true;
+						}
+						unlink($tempfilename);
+						$this->errors[] = 'FAILED: copy('.$tempfilename.', '.$this->filename.') - '.strip_tags(ob_get_contents());
+
+					} else {
+
+						$this->errors[] = 'Could not open '.$tempfilename.' mode "wb" - '.strip_tags(ob_get_contents());
+
+					}
+					ob_end_clean();
+				}
+				fclose($fp_source);
+				return false;
+
+
+			} else {
+				$this->errors[] = 'Could not open '.$this->filename.' mode "r+b"';
+				return false;
+			}
+		}
+		$this->errors[] = 'File is not writeable: '.$this->filename;
+		return false;
+	}
+
+}
+
+?>
\ No newline at end of file