function getid3_flv(&$fd, &$ThisFileInfo, $ReturnAllTagData = false)
{
//$start_time = microtime(true);
fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET);
$FLVdataLength = $ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset'];
$FLVheader = fread($fd, 5);
$ThisFileInfo['fileformat'] = 'flv';
$ThisFileInfo['flv']['header']['signature'] = substr($FLVheader, 0, 3);
$ThisFileInfo['flv']['header']['version'] = getid3_lib::BigEndian2Int(substr($FLVheader, 3, 1));
$TypeFlags = getid3_lib::BigEndian2Int(substr($FLVheader, 4, 1));
if ($ThisFileInfo['flv']['header']['signature'] != 'FLV') {
$ThisFileInfo['error'][] = 'Expecting "FLV" at offset ' . $ThisFileInfo['avdataoffset'] . ', found "' . $ThisFileInfo['flv']['header']['signature'] . '"';
unset($ThisFileInfo['flv']);
unset($ThisFileInfo['fileformat']);
return false;
}
$ThisFileInfo['flv']['header']['hasAudio'] = (bool) ($TypeFlags & 0x4);
$ThisFileInfo['flv']['header']['hasVideo'] = (bool) ($TypeFlags & 0x1);
$FrameSizeDataLength = getid3_lib::BigEndian2Int(fread($fd, 4));
$FLVheaderFrameLength = 9;
if ($FrameSizeDataLength > $FLVheaderFrameLength) {
fseek($fd, $FrameSizeDataLength - $FLVheaderFrameLength, SEEK_CUR);
}
//echo __LINE__.'='.number_format(microtime(true) - $start_time, 3).'<br>';
$Duration = 0;
$found_video = false;
$found_audio = false;
$found_meta = false;
while (ftell($fd) + 16 < $ThisFileInfo['avdataend']) {
$ThisTagHeader = fread($fd, 16);
$PreviousTagLength = getid3_lib::BigEndian2Int(substr($ThisTagHeader, 0, 4));
$TagType = getid3_lib::BigEndian2Int(substr($ThisTagHeader, 4, 1));
$DataLength = getid3_lib::BigEndian2Int(substr($ThisTagHeader, 5, 3));
$Timestamp = getid3_lib::BigEndian2Int(substr($ThisTagHeader, 8, 3));
$LastHeaderByte = getid3_lib::BigEndian2Int(substr($ThisTagHeader, 15, 1));
$NextOffset = ftell($fd) - 1 + $DataLength;
if ($Timestamp > $Duration) {
$Duration = $Timestamp;
}
//echo __LINE__.'['.ftell($fd).']=('.$TagType.')='.number_format(microtime(true) - $start_time, 3).'<br>';
switch ($TagType) {
case GETID3_FLV_TAG_AUDIO:
if (!$found_audio) {
$found_audio = true;
$ThisFileInfo['flv']['audio']['audioFormat'] = $LastHeaderByte & 0x7;
$ThisFileInfo['flv']['audio']['audioRate'] = ($LastHeaderByte & 0x30) / 0x10;
$ThisFileInfo['flv']['audio']['audioSampleSize'] = ($LastHeaderByte & 0x40) / 0x40;
$ThisFileInfo['flv']['audio']['audioType'] = ($LastHeaderByte & 0x80) / 0x80;
}
break;
case GETID3_FLV_TAG_VIDEO:
if (!$found_video) {
$found_video = true;
$ThisFileInfo['flv']['video']['videoCodec'] = $LastHeaderByte & 0x7;
$FLVvideoHeader = fread($fd, 11);
if ($ThisFileInfo['flv']['video']['videoCodec'] != GETID3_FLV_VIDEO_VP6) {
$PictureSizeType = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 3, 2)) >> 7;
$PictureSizeType = $PictureSizeType & 0x7;
$ThisFileInfo['flv']['header']['videoSizeType'] = $PictureSizeType;
switch ($PictureSizeType) {
case 0:
//$PictureSizeEnc = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 5, 2));
//$PictureSizeEnc <<= 1;
//$ThisFileInfo['video']['resolution_x'] = ($PictureSizeEnc & 0xFF00) >> 8;
//$PictureSizeEnc = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 6, 2));
//$PictureSizeEnc <<= 1;
//$ThisFileInfo['video']['resolution_y'] = ($PictureSizeEnc & 0xFF00) >> 8;
$PictureSizeEnc['x'] = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 4, 2));
$PictureSizeEnc['y'] = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 5, 2));
$PictureSizeEnc['x'] >>= 7;
$PictureSizeEnc['y'] >>= 7;
$ThisFileInfo['video']['resolution_x'] = $PictureSizeEnc['x'] & 0xff;
$ThisFileInfo['video']['resolution_y'] = $PictureSizeEnc['y'] & 0xff;
break;
case 1:
$PictureSizeEnc['x'] = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 4, 3));
$PictureSizeEnc['y'] = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 6, 3));
$PictureSizeEnc['x'] >>= 7;
$PictureSizeEnc['y'] >>= 7;
$ThisFileInfo['video']['resolution_x'] = $PictureSizeEnc['x'] & 0xffff;
$ThisFileInfo['video']['resolution_y'] = $PictureSizeEnc['y'] & 0xffff;
break;
case 2:
$ThisFileInfo['video']['resolution_x'] = 352;
$ThisFileInfo['video']['resolution_y'] = 288;
break;
case 3:
$ThisFileInfo['video']['resolution_x'] = 176;
$ThisFileInfo['video']['resolution_y'] = 144;
break;
case 4:
$ThisFileInfo['video']['resolution_x'] = 128;
$ThisFileInfo['video']['resolution_y'] = 96;
break;
case 5:
$ThisFileInfo['video']['resolution_x'] = 320;
$ThisFileInfo['video']['resolution_y'] = 240;
break;
case 6:
$ThisFileInfo['video']['resolution_x'] = 160;
$ThisFileInfo['video']['resolution_y'] = 120;
break;
default:
$ThisFileInfo['video']['resolution_x'] = 0;
$ThisFileInfo['video']['resolution_y'] = 0;
break;
}
}
}
break;
// Meta tag
// Meta tag
case GETID3_FLV_TAG_META:
if (!$found_meta) {
$found_meta = true;
fseek($fd, -1, SEEK_CUR);
$bData = fread($fd, $DataLength);
$b = new AMFStream($bData);
// $reader = new AMFReader(new AMFStream(fread($fd, $DataLength)));
$reader = new AMFReader($b);
$eventName = $reader->readData();
$ThisFileInfo['meta'][$eventName] = $reader->readData();
unset($reader);
$ThisFileInfo['video']['frame_rate'] = @$ThisFileInfo['meta']['onMetaData']['framerate'];
$ThisFileInfo['video']['resolution_x'] = @$ThisFileInfo['meta']['onMetaData']['width'];
$ThisFileInfo['video']['resolution_y'] = @$ThisFileInfo['meta']['onMetaData']['height'];
}
break;
default:
// noop
break;
}
fseek($fd, $NextOffset, SEEK_SET);
}
if ($ThisFileInfo['playtime_seconds'] = $Duration / 1000) {
$ThisFileInfo['bitrate'] = ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) / $ThisFileInfo['playtime_seconds'];
}
if ($ThisFileInfo['flv']['header']['hasAudio']) {
$ThisFileInfo['audio']['codec'] = $this->FLVaudioFormat($ThisFileInfo['flv']['audio']['audioFormat']);
$ThisFileInfo['audio']['sample_rate'] = $this->FLVaudioRate($ThisFileInfo['flv']['audio']['audioRate']);
$ThisFileInfo['audio']['bits_per_sample'] = $this->FLVaudioBitDepth($ThisFileInfo['flv']['audio']['audioSampleSize']);
$ThisFileInfo['audio']['channels'] = $ThisFileInfo['flv']['audio']['audioType'] + 1;
// 0=mono,1=stereo
$ThisFileInfo['audio']['lossless'] = $ThisFileInfo['flv']['audio']['audioFormat'] ? false : true;
// 0=uncompressed
$ThisFileInfo['audio']['dataformat'] = 'flv';
}
if (@$ThisFileInfo['flv']['header']['hasVideo']) {
$ThisFileInfo['video']['codec'] = $this->FLVvideoCodec($ThisFileInfo['flv']['video']['videoCodec']);
$ThisFileInfo['video']['dataformat'] = 'flv';
$ThisFileInfo['video']['lossless'] = false;
}
return true;
}
public function Analyze()
{
$info =& $this->getid3->info;
fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
$FLVdataLength = $info['avdataend'] - $info['avdataoffset'];
$FLVheader = fread($this->getid3->fp, 5);
$info['fileformat'] = 'flv';
$info['flv']['header']['signature'] = substr($FLVheader, 0, 3);
$info['flv']['header']['version'] = getid3_lib::BigEndian2Int(substr($FLVheader, 3, 1));
$TypeFlags = getid3_lib::BigEndian2Int(substr($FLVheader, 4, 1));
$magic = 'FLV';
if ($info['flv']['header']['signature'] != $magic) {
$info['error'][] = 'Expecting "' . getid3_lib::PrintHexBytes($magic) . '" at offset ' . $info['avdataoffset'] . ', found "' . getid3_lib::PrintHexBytes($info['flv']['header']['signature']) . '"';
unset($info['flv']);
unset($info['fileformat']);
return false;
}
$info['flv']['header']['hasAudio'] = (bool) ($TypeFlags & 0x4);
$info['flv']['header']['hasVideo'] = (bool) ($TypeFlags & 0x1);
$FrameSizeDataLength = getid3_lib::BigEndian2Int(fread($this->getid3->fp, 4));
$FLVheaderFrameLength = 9;
if ($FrameSizeDataLength > $FLVheaderFrameLength) {
fseek($this->getid3->fp, $FrameSizeDataLength - $FLVheaderFrameLength, SEEK_CUR);
}
$Duration = 0;
$found_video = false;
$found_audio = false;
$found_meta = false;
$found_valid_meta_playtime = false;
$tagParseCount = 0;
$info['flv']['framecount'] = array('total' => 0, 'audio' => 0, 'video' => 0);
$flv_framecount =& $info['flv']['framecount'];
while (ftell($this->getid3->fp) + 16 < $info['avdataend'] && ($tagParseCount++ <= $this->max_frames || !$found_valid_meta_playtime)) {
$ThisTagHeader = fread($this->getid3->fp, 16);
$PreviousTagLength = getid3_lib::BigEndian2Int(substr($ThisTagHeader, 0, 4));
$TagType = getid3_lib::BigEndian2Int(substr($ThisTagHeader, 4, 1));
$DataLength = getid3_lib::BigEndian2Int(substr($ThisTagHeader, 5, 3));
$Timestamp = getid3_lib::BigEndian2Int(substr($ThisTagHeader, 8, 3));
$LastHeaderByte = getid3_lib::BigEndian2Int(substr($ThisTagHeader, 15, 1));
$NextOffset = ftell($this->getid3->fp) - 1 + $DataLength;
if ($Timestamp > $Duration) {
$Duration = $Timestamp;
}
$flv_framecount['total']++;
switch ($TagType) {
case GETID3_FLV_TAG_AUDIO:
$flv_framecount['audio']++;
if (!$found_audio) {
$found_audio = true;
$info['flv']['audio']['audioFormat'] = $LastHeaderByte >> 4 & 0xf;
$info['flv']['audio']['audioRate'] = $LastHeaderByte >> 2 & 0x3;
$info['flv']['audio']['audioSampleSize'] = $LastHeaderByte >> 1 & 0x1;
$info['flv']['audio']['audioType'] = $LastHeaderByte & 0x1;
}
break;
case GETID3_FLV_TAG_VIDEO:
$flv_framecount['video']++;
if (!$found_video) {
$found_video = true;
$info['flv']['video']['videoCodec'] = $LastHeaderByte & 0x7;
$FLVvideoHeader = fread($this->getid3->fp, 11);
if ($info['flv']['video']['videoCodec'] == GETID3_FLV_VIDEO_H264) {
// this code block contributed by: moysevichØgmail*com
$AVCPacketType = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 0, 1));
if ($AVCPacketType == H264_AVC_SEQUENCE_HEADER) {
// read AVCDecoderConfigurationRecord
$configurationVersion = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 4, 1));
$AVCProfileIndication = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 5, 1));
$profile_compatibility = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 6, 1));
$lengthSizeMinusOne = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 7, 1));
$numOfSequenceParameterSets = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 8, 1));
if (($numOfSequenceParameterSets & 0x1f) != 0) {
// there is at least one SequenceParameterSet
// read size of the first SequenceParameterSet
//$spsSize = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 9, 2));
$spsSize = getid3_lib::LittleEndian2Int(substr($FLVvideoHeader, 9, 2));
// read the first SequenceParameterSet
$sps = fread($this->getid3->fp, $spsSize);
if (strlen($sps) == $spsSize) {
// make sure that whole SequenceParameterSet was red
$spsReader = new AVCSequenceParameterSetReader($sps);
$spsReader->readData();
$info['video']['resolution_x'] = $spsReader->getWidth();
$info['video']['resolution_y'] = $spsReader->getHeight();
}
}
}
// end: moysevichØgmail*com
} elseif ($info['flv']['video']['videoCodec'] == GETID3_FLV_VIDEO_H263) {
$PictureSizeType = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 3, 2)) >> 7;
$PictureSizeType = $PictureSizeType & 0x7;
$info['flv']['header']['videoSizeType'] = $PictureSizeType;
switch ($PictureSizeType) {
case 0:
//$PictureSizeEnc = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 5, 2));
//$PictureSizeEnc <<= 1;
//$info['video']['resolution_x'] = ($PictureSizeEnc & 0xFF00) >> 8;
//$PictureSizeEnc = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 6, 2));
//$PictureSizeEnc <<= 1;
//$info['video']['resolution_y'] = ($PictureSizeEnc & 0xFF00) >> 8;
$PictureSizeEnc['x'] = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 4, 2));
$PictureSizeEnc['y'] = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 5, 2));
$PictureSizeEnc['x'] >>= 7;
$PictureSizeEnc['y'] >>= 7;
$info['video']['resolution_x'] = $PictureSizeEnc['x'] & 0xff;
$info['video']['resolution_y'] = $PictureSizeEnc['y'] & 0xff;
break;
case 1:
$PictureSizeEnc['x'] = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 4, 3));
$PictureSizeEnc['y'] = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 6, 3));
$PictureSizeEnc['x'] >>= 7;
$PictureSizeEnc['y'] >>= 7;
$info['video']['resolution_x'] = $PictureSizeEnc['x'] & 0xffff;
$info['video']['resolution_y'] = $PictureSizeEnc['y'] & 0xffff;
break;
case 2:
$info['video']['resolution_x'] = 352;
$info['video']['resolution_y'] = 288;
break;
case 3:
$info['video']['resolution_x'] = 176;
$info['video']['resolution_y'] = 144;
break;
case 4:
$info['video']['resolution_x'] = 128;
$info['video']['resolution_y'] = 96;
break;
case 5:
$info['video']['resolution_x'] = 320;
$info['video']['resolution_y'] = 240;
break;
case 6:
$info['video']['resolution_x'] = 160;
$info['video']['resolution_y'] = 120;
break;
default:
$info['video']['resolution_x'] = 0;
$info['video']['resolution_y'] = 0;
break;
}
}
$info['video']['pixel_aspect_ratio'] = $info['video']['resolution_x'] / $info['video']['resolution_y'];
}
break;
// Meta tag
// Meta tag
case GETID3_FLV_TAG_META:
if (!$found_meta) {
$found_meta = true;
fseek($this->getid3->fp, -1, SEEK_CUR);
$datachunk = fread($this->getid3->fp, $DataLength);
$AMFstream = new AMFStream($datachunk);
$reader = new AMFReader($AMFstream);
$eventName = $reader->readData();
$info['flv']['meta'][$eventName] = $reader->readData();
unset($reader);
$copykeys = array('framerate' => 'frame_rate', 'width' => 'resolution_x', 'height' => 'resolution_y', 'audiodatarate' => 'bitrate', 'videodatarate' => 'bitrate');
foreach ($copykeys as $sourcekey => $destkey) {
if (isset($info['flv']['meta']['onMetaData'][$sourcekey])) {
switch ($sourcekey) {
case 'width':
case 'height':
$info['video'][$destkey] = intval(round($info['flv']['meta']['onMetaData'][$sourcekey]));
break;
case 'audiodatarate':
$info['audio'][$destkey] = getid3_lib::CastAsInt(round($info['flv']['meta']['onMetaData'][$sourcekey] * 1000));
break;
case 'videodatarate':
case 'frame_rate':
default:
$info['video'][$destkey] = $info['flv']['meta']['onMetaData'][$sourcekey];
break;
}
}
}
if (!empty($info['flv']['meta']['onMetaData']['duration'])) {
$found_valid_meta_playtime = true;
}
}
break;
default:
// noop
break;
}
fseek($this->getid3->fp, $NextOffset, SEEK_SET);
}
$info['playtime_seconds'] = $Duration / 1000;
if ($info['playtime_seconds'] > 0) {
$info['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / $info['playtime_seconds'];
}
if ($info['flv']['header']['hasAudio']) {
$info['audio']['codec'] = $this->FLVaudioFormat($info['flv']['audio']['audioFormat']);
$info['audio']['sample_rate'] = $this->FLVaudioRate($info['flv']['audio']['audioRate']);
$info['audio']['bits_per_sample'] = $this->FLVaudioBitDepth($info['flv']['audio']['audioSampleSize']);
$info['audio']['channels'] = $info['flv']['audio']['audioType'] + 1;
// 0=mono,1=stereo
$info['audio']['lossless'] = $info['flv']['audio']['audioFormat'] ? false : true;
// 0=uncompressed
$info['audio']['dataformat'] = 'flv';
}
if (!empty($info['flv']['header']['hasVideo'])) {
$info['video']['codec'] = $this->FLVvideoCodec($info['flv']['video']['videoCodec']);
$info['video']['dataformat'] = 'flv';
$info['video']['lossless'] = false;
}
// Set information from meta
if (!empty($info['flv']['meta']['onMetaData']['duration'])) {
$info['playtime_seconds'] = $info['flv']['meta']['onMetaData']['duration'];
$info['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / $info['playtime_seconds'];
}
if (isset($info['flv']['meta']['onMetaData']['audiocodecid'])) {
$info['audio']['codec'] = $this->FLVaudioFormat($info['flv']['meta']['onMetaData']['audiocodecid']);
}
if (isset($info['flv']['meta']['onMetaData']['videocodecid'])) {
$info['video']['codec'] = $this->FLVvideoCodec($info['flv']['meta']['onMetaData']['videocodecid']);
}
return true;
}
public function Analyze()
{
$info =& $this->getid3->info;
$info['flv'] = array();
$info_flv =& $info['flv'];
fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
$flv_data_length = $info['avdataend'] - $info['avdataoffset'];
$flv_header = fread($this->getid3->fp, 5);
$info['fileformat'] = 'flv';
$info_flv['header']['signature'] = substr($flv_header, 0, 3);
$info_flv['header']['version'] = getid3_lib::BigEndian2Int(substr($flv_header, 3, 1));
$type_flags = getid3_lib::BigEndian2Int(substr($flv_header, 4, 1));
$info_flv['header']['hasAudio'] = (bool) ($type_flags & 0x4);
$info_flv['header']['hasVideo'] = (bool) ($type_flags & 0x1);
$frame_size_data_length = getid3_lib::BigEndian2Int(fread($this->getid3->fp, 4));
$flv_header_frame_length = 9;
if ($frame_size_data_length > $flv_header_frame_length) {
fseek($this->getid3->fp, $frame_size_data_length - $flv_header_frame_length, SEEK_CUR);
}
$duration = 0;
while (ftell($this->getid3->fp) + 1 < $info['avdataend']) {
$this_tag_header = fread($this->getid3->fp, 16);
$previous_tag_length = getid3_lib::BigEndian2Int(substr($this_tag_header, 0, 4));
$tag_type = getid3_lib::BigEndian2Int(substr($this_tag_header, 4, 1));
$data_length = getid3_lib::BigEndian2Int(substr($this_tag_header, 5, 3));
$timestamp = getid3_lib::BigEndian2Int(substr($this_tag_header, 8, 3));
$last_header_byte = getid3_lib::BigEndian2Int(substr($this_tag_header, 15, 1));
$next_offset = ftell($this->getid3->fp) - 1 + $data_length;
switch ($tag_type) {
case getid3_flv::TAG_AUDIO:
if (!isset($info_flv['audio']['audioFormat'])) {
$info_flv['audio']['audioFormat'] = $last_header_byte & 0x7;
$info_flv['audio']['audioRate'] = ($last_header_byte & 0x30) / 0x10;
$info_flv['audio']['audioSampleSize'] = ($last_header_byte & 0x40) / 0x40;
$info_flv['audio']['audioType'] = ($last_header_byte & 0x80) / 0x80;
}
break;
case getid3_flv::TAG_VIDEO:
if (!isset($info_flv['video']['videoCodec'])) {
$info_flv['video']['videoCodec'] = $last_header_byte & 0x7;
$flv_video_header = fread($this->getid3->fp, 11);
if ($info['flv']['video']['videoCodec'] == getid3_flv::VIDEO_H264) {
// this code block contributed by: moysevichØgmail*com
$AVCPacketType = getid3_lib::BigEndian2Int(substr($flv_video_header, 0, 1));
if ($AVCPacketType == AVCSequenceParameterSetReader::H264_AVC_SEQUENCE_HEADER) {
// read AVCDecoderConfigurationRecord
$configurationVersion = getid3_lib::BigEndian2Int(substr($flv_video_header, 4, 1));
$AVCProfileIndication = getid3_lib::BigEndian2Int(substr($flv_video_header, 5, 1));
$profile_compatibility = getid3_lib::BigEndian2Int(substr($flv_video_header, 6, 1));
$lengthSizeMinusOne = getid3_lib::BigEndian2Int(substr($flv_video_header, 7, 1));
$numOfSequenceParameterSets = getid3_lib::BigEndian2Int(substr($flv_video_header, 8, 1));
if (($numOfSequenceParameterSets & 0x1f) != 0) {
// there is at least one SequenceParameterSet
// read size of the first SequenceParameterSet
//$spsSize = getid3_lib::BigEndian2Int(substr($flv_video_header, 9, 2));
$spsSize = getid3_lib::LittleEndian2Int(substr($flv_video_header, 9, 2));
// read the first SequenceParameterSet
$sps = fread($this->getid3->fp, $spsSize);
if (strlen($sps) == $spsSize) {
// make sure that whole SequenceParameterSet was red
$spsReader = new AVCSequenceParameterSetReader($sps);
$spsReader->readData();
$info['video']['resolution_x'] = $spsReader->getWidth();
$info['video']['resolution_y'] = $spsReader->getHeight();
}
}
}
// end: moysevichØgmail*com
} elseif ($info_flv['video']['videoCodec'] == getid3_flv::VIDEO_H263) {
$picture_size_type = getid3_lib::BigEndian2Int(substr($flv_video_header, 3, 2)) >> 7;
$picture_size_type = $picture_size_type & 0x7;
$info_flv['header']['videoSizeType'] = $picture_size_type;
switch ($picture_size_type) {
case 0:
$picture_size_enc = getid3_lib::BigEndian2Int(substr($flv_video_header, 5, 2));
$picture_size_enc <<= 1;
$info['video']['resolution_x'] = ($picture_size_enc & 0xff00) >> 8;
$picture_size_enc = getid3_lib::BigEndian2Int(substr($flv_video_header, 6, 2));
$picture_size_enc <<= 1;
$info['video']['resolution_y'] = ($picture_size_enc & 0xff00) >> 8;
break;
case 1:
$picture_size_enc = getid3_lib::BigEndian2Int(substr($flv_video_header, 5, 4));
$picture_size_enc <<= 1;
$info['video']['resolution_x'] = ($picture_size_enc & 0xffff0000) >> 16;
$picture_size_enc = getid3_lib::BigEndian2Int(substr($flv_video_header, 7, 4));
$picture_size_enc <<= 1;
$info['video']['resolution_y'] = ($picture_size_enc & 0xffff0000) >> 16;
break;
case 2:
$info['video']['resolution_x'] = 352;
$info['video']['resolution_y'] = 288;
break;
case 3:
$info['video']['resolution_x'] = 176;
$info['video']['resolution_y'] = 144;
break;
case 4:
$info['video']['resolution_x'] = 128;
$info['video']['resolution_y'] = 96;
break;
case 5:
$info['video']['resolution_x'] = 320;
$info['video']['resolution_y'] = 240;
break;
case 6:
$info['video']['resolution_x'] = 160;
$info['video']['resolution_y'] = 120;
break;
default:
$info['video']['resolution_x'] = 0;
$info['video']['resolution_y'] = 0;
break;
}
}
$info['video']['pixel_aspect_ratio'] = $info['video']['resolution_x'] / $info['video']['resolution_y'];
}
break;
// Meta tag
// Meta tag
case getid3_flv::TAG_META:
fseek($this->getid3->fp, -1, SEEK_CUR);
$reader = new AMFReader(new AMFStream(fread($this->getid3->fp, $data_length)));
$event_name = $reader->readData();
$info['flv']['meta'][$event_name] = $reader->readData();
unset($reader);
$copykeys = array('framerate' => 'frame_rate', 'width' => 'resolution_x', 'height' => 'resolution_y', 'audiodatarate' => 'bitrate', 'videodatarate' => 'bitrate');
foreach ($copykeys as $sourcekey => $destkey) {
if (isset($info['flv']['meta']['onMetaData'][$sourcekey])) {
switch ($sourcekey) {
case 'width':
case 'height':
$info['video'][$destkey] = intval(round($info['flv']['meta']['onMetaData'][$sourcekey]));
break;
case 'audiodatarate':
$info['audio'][$destkey] = $info['flv']['meta']['onMetaData'][$sourcekey];
break;
case 'videodatarate':
case 'frame_rate':
default:
$info['video'][$destkey] = $info['flv']['meta']['onMetaData'][$sourcekey];
break;
}
}
}
break;
default:
// noop
break;
}
if ($timestamp > $duration) {
$duration = $timestamp;
}
fseek($this->getid3->fp, $next_offset, SEEK_SET);
}
if ($info['playtime_seconds'] = $duration / 1000) {
$info['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) / $info['playtime_seconds'];
}
if ($info_flv['header']['hasAudio']) {
$info['audio']['codec'] = $this->FLVaudioFormat($info_flv['audio']['audioFormat']);
$info['audio']['sample_rate'] = $this->FLVaudioRate($info_flv['audio']['audioRate']);
$info['audio']['bits_per_sample'] = $this->FLVaudioBitDepth($info_flv['audio']['audioSampleSize']);
$info['audio']['channels'] = $info_flv['audio']['audioType'] + 1;
// 0=mono,1=stereo
$info['audio']['lossless'] = $info_flv['audio']['audioFormat'] ? false : true;
// 0=uncompressed
$info['audio']['dataformat'] = 'flv';
}
if (@$info_flv['header']['hasVideo']) {
$info['video']['codec'] = $this->FLVvideoCodec($info_flv['video']['videoCodec']);
$info['video']['dataformat'] = 'flv';
$info['video']['lossless'] = false;
}
// Set information from meta
if (isset($info['flv']['meta']['onMetaData']['duration'])) {
$info['playtime_seconds'] = $info['flv']['meta']['onMetaData']['duration'];
}
if (isset($info['flv']['meta']['onMetaData']['audiocodecid'])) {
$info['audio']['codec'] = $this->FLVaudioFormat($info['flv']['meta']['onMetaData']['audiocodecid']);
}
if (isset($info['flv']['meta']['onMetaData']['videocodecid'])) {
$info['video']['codec'] = $this->FLVvideoCodec($info['flv']['meta']['onMetaData']['videocodecid']);
}
return true;
}
public function Analyze()
{
$info =& $this->getid3->info;
$info['flv'] = array();
$info_flv =& $info['flv'];
fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
$flv_data_length = $info['avdataend'] - $info['avdataoffset'];
$flv_header = fread($this->getid3->fp, 5);
$info['fileformat'] = 'flv';
$info_flv['header']['signature'] = substr($flv_header, 0, 3);
$info_flv['header']['version'] = getid3_lib::BigEndian2Int(substr($flv_header, 3, 1));
$type_flags = getid3_lib::BigEndian2Int(substr($flv_header, 4, 1));
$info_flv['header']['hasAudio'] = (bool) ($type_flags & 0x4);
$info_flv['header']['hasVideo'] = (bool) ($type_flags & 0x1);
$frame_size_data_length = getid3_lib::BigEndian2Int(fread($this->getid3->fp, 4));
$flv_header_frame_length = 9;
if ($frame_size_data_length > $flv_header_frame_length) {
fseek($this->getid3->fp, $frame_size_data_length - $flv_header_frame_length, SEEK_CUR);
}
$duration = 0;
while (ftell($this->getid3->fp) + 1 < $info['avdataend']) {
$this_tag_header = fread($this->getid3->fp, 16);
$previous_tag_length = getid3_lib::BigEndian2Int(substr($this_tag_header, 0, 4));
$tag_type = getid3_lib::BigEndian2Int(substr($this_tag_header, 4, 1));
$data_length = getid3_lib::BigEndian2Int(substr($this_tag_header, 5, 3));
$timestamp = getid3_lib::BigEndian2Int(substr($this_tag_header, 8, 3));
$last_header_byte = getid3_lib::BigEndian2Int(substr($this_tag_header, 15, 1));
$next_offset = ftell($this->getid3->fp) - 1 + $data_length;
switch ($tag_type) {
case getid3_flv::TAG_AUDIO:
if (!isset($info_flv['audio']['audioFormat'])) {
$info_flv['audio']['audioFormat'] = $last_header_byte & 0x7;
$info_flv['audio']['audioRate'] = ($last_header_byte & 0x30) / 0x10;
$info_flv['audio']['audioSampleSize'] = ($last_header_byte & 0x40) / 0x40;
$info_flv['audio']['audioType'] = ($last_header_byte & 0x80) / 0x80;
}
break;
case getid3_flv::TAG_VIDEO:
if (!isset($info_flv['video']['videoCodec'])) {
$info_flv['video']['videoCodec'] = $last_header_byte & 0x7;
$flv_video_header = fread($this->getid3->fp, 11);
if ($info_flv['video']['videoCodec'] != getid3_flv::VIDEO_VP6) {
$picture_size_type = getid3_lib::BigEndian2Int(substr($flv_video_header, 3, 2)) >> 7;
$picture_size_type = $picture_size_type & 0x7;
$info_flv['header']['videoSizeType'] = $picture_size_type;
switch ($picture_size_type) {
case 0:
$picture_size_enc = getid3_lib::BigEndian2Int(substr($flv_video_header, 5, 2));
$picture_size_enc <<= 1;
$info['video']['resolution_x'] = ($picture_size_enc & 0xff00) >> 8;
$picture_size_enc = getid3_lib::BigEndian2Int(substr($flv_video_header, 6, 2));
$picture_size_enc <<= 1;
$info['video']['resolution_y'] = ($picture_size_enc & 0xff00) >> 8;
break;
case 1:
$picture_size_enc = getid3_lib::BigEndian2Int(substr($flv_video_header, 5, 4));
$picture_size_enc <<= 1;
$info['video']['resolution_x'] = ($picture_size_enc & 0xffff0000) >> 16;
$picture_size_enc = getid3_lib::BigEndian2Int(substr($flv_video_header, 7, 4));
$picture_size_enc <<= 1;
$info['video']['resolution_y'] = ($picture_size_enc & 0xffff0000) >> 16;
break;
case 2:
$info['video']['resolution_x'] = 352;
$info['video']['resolution_y'] = 288;
break;
case 3:
$info['video']['resolution_x'] = 176;
$info['video']['resolution_y'] = 144;
break;
case 4:
$info['video']['resolution_x'] = 128;
$info['video']['resolution_y'] = 96;
break;
case 5:
$info['video']['resolution_x'] = 320;
$info['video']['resolution_y'] = 240;
break;
case 6:
$info['video']['resolution_x'] = 160;
$info['video']['resolution_y'] = 120;
break;
default:
$info['video']['resolution_x'] = 0;
$info['video']['resolution_y'] = 0;
break;
}
}
}
break;
// Meta tag
// Meta tag
case getid3_flv::TAG_META:
fseek($this->getid3->fp, -1, SEEK_CUR);
$reader = new AMFReader(new AMFStream(fread($this->getid3->fp, $data_length)));
$event_name = $reader->readData();
$info['meta'][$event_name] = $reader->readData();
unset($reader);
$info['video']['frame_rate'] = @$info['meta']['onMetaData']['framerate'];
$info['video']['resolution_x'] = @$info['meta']['onMetaData']['width'];
$info['video']['resolution_y'] = @$info['meta']['onMetaData']['height'];
break;
default:
// noop
break;
}
if ($timestamp > $duration) {
$duration = $timestamp;
}
fseek($this->getid3->fp, $next_offset, SEEK_SET);
}
if ($info['playtime_seconds'] = $duration / 1000) {
$info['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) / $info['playtime_seconds'];
}
if ($info_flv['header']['hasAudio']) {
$info['audio']['codec'] = $this->FLVaudioFormat($info_flv['audio']['audioFormat']);
$info['audio']['sample_rate'] = $this->FLVaudioRate($info_flv['audio']['audioRate']);
$info['audio']['bits_per_sample'] = $this->FLVaudioBitDepth($info_flv['audio']['audioSampleSize']);
$info['audio']['channels'] = $info_flv['audio']['audioType'] + 1;
// 0=mono,1=stereo
$info['audio']['lossless'] = $info_flv['audio']['audioFormat'] ? false : true;
// 0=uncompressed
$info['audio']['dataformat'] = 'flv';
}
if (@$info_flv['header']['hasVideo']) {
$info['video']['codec'] = $this->FLVvideoCodec($info_flv['video']['videoCodec']);
$info['video']['dataformat'] = 'flv';
$info['video']['lossless'] = false;
}
return true;
}
function getid3_flv(&$fd, &$ThisFileInfo, $ReturnAllTagData = false)
{
fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET);
$FLVfileData = fread($fd, $ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']);
$FLVmagic = substr($FLVfileData, 0, 3);
if ($FLVmagic != 'FLV') {
$ThisFileInfo['error'][] = 'Expecting "FLV" at offset ' . $ThisFileInfo['avdataoffset'] . ', found "' . $ThisFileInfo['flv']['header']['signature'] . '"';
unset($ThisFileInfo['flv']);
unset($ThisFileInfo['fileformat']);
return false;
}
$ThisFileInfo['flv']['header']['signature'] = $FLVmagic;
$ThisFileInfo['flv']['header']['version'] = ord($FLVfileData[3]);
$ThisFileInfo['fileformat'] = 'flv';
$TypeFlags = ord($FLVfileData[4]);
$ThisFileInfo['flv']['header']['hasAudio'] = (bool) ($TypeFlags & 4);
$ThisFileInfo['flv']['header']['hasVideo'] = (bool) ($TypeFlags & 1);
$FrameSizeDataLength = getid3_lib::BigEndian2Int(substr($FLVfileData, 5, 4));
// FLV tags
$CurrentOffset = $FrameSizeDataLength;
$FLVdataLength = strlen($FLVfileData);
$Duration = 0;
$SoundFormat = null;
$VideoFormat = null;
while ($CurrentOffset < $FLVdataLength) {
// previous tag size
$PreviousTagLength = getid3_lib::BigEndian2Int(substr($FLVfileData, $CurrentOffset, 4));
$CurrentOffset += 4;
$TagType = ord(substr($FLVfileData, $CurrentOffset, 1));
$DataLength = getid3_lib::BigEndian2Int(substr($FLVfileData, $CurrentOffset + 1, 3));
$Timestamp = getid3_lib::BigEndian2Int(substr($FLVfileData, $CurrentOffset + 4, 3));
switch ($TagType) {
case GETID3_FLV_TAG_AUDIO:
if (is_null($SoundFormat)) {
$SoundInfo = ord(substr($FLVfileData, $CurrentOffset + 11, 1));
$SoundFormat = $SoundInfo & 0x7;
$ThisFileInfo['flv']['audio']['audioFormat'] = $SoundFormat;
$ThisFileInfo['flv']['audio']['audioRate'] = ($SoundInfo & 0x30) / 0x10;
$ThisFileInfo['flv']['audio']['audioSampleSize'] = ($SoundInfo & 0x40) / 0x40;
$ThisFileInfo['flv']['audio']['audioType'] = ($SoundInfo & 0x80) / 0x80;
}
break;
case GETID3_FLV_TAG_VIDEO:
if (is_null($VideoFormat)) {
$VideoInfo = ord(substr($FLVfileData, $CurrentOffset + 11, 1));
$VideoFormat = $VideoInfo & 0x7;
$ThisFileInfo['flv']['video']['videoCodec'] = $VideoFormat;
if ($VideoFormat != GETID3_FLV_VIDEO_VP6) {
$PictureSizeType = getid3_lib::BigEndian2Int(substr($FLVfileData, $CurrentOffset + 15, 2)) >> 7;
$PictureSizeType = $PictureSizeType & 0x7;
$ThisFileInfo['flv']['header']['videoSizeType'] = $PictureSizeType;
switch ($PictureSizeType) {
case 0:
$PictureSizeEnc = getid3_lib::BigEndian2Int(substr($FLVfileData, $CurrentOffset + 16, 2));
$PictureSizeEnc <<= 1;
$ThisFileInfo['video']['resolution_x'] = ($PictureSizeEnc & 0xff00) >> 8;
$PictureSizeEnc = getid3_lib::BigEndian2Int(substr($FLVfileData, $CurrentOffset + 17, 2));
$PictureSizeEnc <<= 1;
$ThisFileInfo['video']['resolution_y'] = ($PictureSizeEnc & 0xff00) >> 8;
break;
case 1:
$PictureSizeEnc = getid3_lib::BigEndian2Int(substr($FLVfileData, $CurrentOffset + 16, 4));
$PictureSizeEnc <<= 1;
$ThisFileInfo['video']['resolution_x'] = ($PictureSizeEnc & 0xffff0000) >> 16;
$PictureSizeEnc = getid3_lib::BigEndian2Int(substr($FLVfileData, $CurrentOffset + 18, 4));
$PictureSizeEnc <<= 1;
$ThisFileInfo['video']['resolution_y'] = ($PictureSizeEnc & 0xffff0000) >> 16;
break;
case 2:
$ThisFileInfo['video']['resolution_x'] = 352;
$ThisFileInfo['video']['resolution_y'] = 288;
break;
case 3:
$ThisFileInfo['video']['resolution_x'] = 176;
$ThisFileInfo['video']['resolution_y'] = 144;
break;
case 4:
$ThisFileInfo['video']['resolution_x'] = 128;
$ThisFileInfo['video']['resolution_y'] = 96;
break;
case 5:
$ThisFileInfo['video']['resolution_x'] = 320;
$ThisFileInfo['video']['resolution_y'] = 240;
break;
case 6:
$ThisFileInfo['video']['resolution_x'] = 160;
$ThisFileInfo['video']['resolution_y'] = 120;
break;
default:
$ThisFileInfo['video']['resolution_x'] = 0;
$ThisFileInfo['video']['resolution_y'] = 0;
break;
}
}
}
break;
// Meta tag
// Meta tag
case GETID3_FLV_TAG_META:
$reader = new AMFReader(new AMFStream(substr($FLVfileData, $CurrentOffset + 11, $DataLength)));
$eventName = $reader->readData();
$ThisFileInfo['meta'][$eventName] = $reader->readData();
unset($reader);
$ThisFileInfo['video']['frame_rate'] = $ThisFileInfo['meta']['onMetaData']['framerate'];
$ThisFileInfo['video']['resolution_x'] = $ThisFileInfo['meta']['onMetaData']['width'];
$ThisFileInfo['video']['resolution_y'] = $ThisFileInfo['meta']['onMetaData']['height'];
break;
default:
// noop
break;
}
if ($Timestamp > $Duration) {
$Duration = $Timestamp;
}
$CurrentOffset += $DataLength + 11;
}
$ThisFileInfo['playtime_seconds'] = $Duration / 1000;
$ThisFileInfo['bitrate'] = ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) / $ThisFileInfo['playtime_seconds'];
if ($ThisFileInfo['flv']['header']['hasAudio']) {
$ThisFileInfo['audio']['codec'] = $this->FLVaudioFormat($ThisFileInfo['flv']['audio']['audioFormat']);
$ThisFileInfo['audio']['sample_rate'] = $this->FLVaudioRate($ThisFileInfo['flv']['audio']['audioRate']);
$ThisFileInfo['audio']['bits_per_sample'] = $this->FLVaudioBitDepth($ThisFileInfo['flv']['audio']['audioSampleSize']);
$ThisFileInfo['audio']['channels'] = $ThisFileInfo['flv']['audio']['audioType'] + 1;
// 0=mono,1=stereo
$ThisFileInfo['audio']['lossless'] = $ThisFileInfo['flv']['audio']['audioFormat'] ? false : true;
// 0=uncompressed
$ThisFileInfo['audio']['dataformat'] = 'flv';
}
if (@$ThisFileInfo['flv']['header']['hasVideo']) {
$ThisFileInfo['video']['codec'] = $this->FLVvideoCodec($ThisFileInfo['flv']['video']['videoCodec']);
$ThisFileInfo['video']['dataformat'] = 'flv';
$ThisFileInfo['video']['lossless'] = false;
}
return true;
}