PHP requestUtils::handleRangeRequest方法代码示例

 public function execute()
 {
     requestUtils::handleConditionalGet();
     $flavorId = $this->getRequestParameter("flavorId");
     $shouldProxy = $this->getRequestParameter("forceproxy", false);
     $ks = $this->getRequestParameter("ks");
     $fileParam = $this->getRequestParameter("file");
     $referrer = base64_decode($this->getRequestParameter("referrer"));
     if (!is_string($referrer)) {
         // base64_decode can return binary data
         $referrer = '';
     }
     $flavorAsset = flavorAssetPeer::retrieveById($flavorId);
     if (is_null($flavorAsset)) {
         KExternalErrors::dieError(KExternalErrors::FLAVOR_NOT_FOUND);
     }
     $entry = entryPeer::retrieveByPK($flavorAsset->getEntryId());
     if (is_null($entry)) {
         KExternalErrors::dieError(KExternalErrors::ENTRY_NOT_FOUND);
     }
     myPartnerUtils::blockInactivePartner($flavorAsset->getPartnerId());
     myPartnerUtils::enforceDelivery($flavorAsset->getPartnerId());
     //disabled enforce cdn because of rtmp delivery
     //requestUtils::enforceCdnDelivery($flavorAsset->getPartnerId());
     $syncKey = $flavorAsset->getSyncKey(flavorAsset::FILE_SYNC_FLAVOR_ASSET_SUB_TYPE_ASSET);
     if (!kFileSyncUtils::file_exists($syncKey, false)) {
         list($fileSync, $local) = kFileSyncUtils::getReadyFileSyncForKey($syncKey, true, false);
         if (is_null($fileSync)) {
             KalturaLog::log("Error - no FileSync for flavor [" . $flavorAsset->getId() . "]");
             KExternalErrors::dieError(KExternalErrors::FILE_NOT_FOUND);
         }
         // always dump remote urls so they will be cached by the cdn transparently
         $remoteUrl = kDataCenterMgr::getRedirectExternalUrl($fileSync);
         kFile::dumpUrl($remoteUrl, true, true);
     }
     $path = kFileSyncUtils::getReadyLocalFilePathForKey($syncKey);
     $flvWrapper = new myFlvHandler($path);
     $isFlv = $flvWrapper->isFlv();
     $clipFrom = $this->getRequestParameter("clipFrom", 0);
     // milliseconds
     $clipTo = $this->getRequestParameter("clipTo", 2147483647);
     // milliseconds
     if ($clipTo == 0) {
         $clipTo = 2147483647;
     }
     if (is_dir($path) && $fileParam) {
         $path .= "/{$fileParam}";
         //echo "path($path),file($fileParam)";
         kFile::dumpFile($path, null, null);
         die;
     } else {
         if (!$isFlv) {
             $limit_file_size = 0;
             if ($clipTo != 2147483647) {
                 $mediaInfo = mediaInfoPeer::retrieveByFlavorAssetId($flavorAsset->getId());
                 if ($mediaInfo && ($mediaInfo->getVideoDuration() || $mediaInfo->getAudioDuration() || $mediaInfo->getContainerDuration())) {
                     $duration = $mediaInfo->getVideoDuration() ? $mediaInfo->getVideoDuration() : ($mediaInfo->getAudioDuration() ? $mediaInfo->getAudioDuration() : $mediaInfo->getContainerDuration());
                     $limit_file_size = floor(@filesize($path) * ($clipTo / $duration));
                 }
             }
             kFile::dumpFile($path, null, null, $limit_file_size);
             die;
         }
     }
     $audioOnly = $this->getRequestParameter("audioOnly");
     // milliseconds
     if ($audioOnly === '0') {
         // audioOnly was explicitly set to 0 - don't attempt to make further automatic investigations
     } elseif ($flvWrapper->getFirstVideoTimestamp() < 0) {
         $audioOnly = true;
     }
     $seekFrom = $this->getRequestParameter("seekFrom", -1);
     if ($seekFrom <= 0) {
         $seekFrom = -1;
     }
     $seekFromBytes = $this->getRequestParameter("seekFromBytes", -1);
     if ($seekFromBytes <= 0) {
         $seekFromBytes = -1;
     }
     $bytes = 0;
     if ($seekFrom !== -1 && $seekFrom !== 0) {
         list($bytes, $duration, $firstTagByte, $toByte) = $flvWrapper->clip(0, -1, $audioOnly);
         list($bytes, $duration, $fromByte, $toByte, $seekFromTimestamp) = $flvWrapper->clip($seekFrom, -1, $audioOnly);
         $seekFromBytes = myFlvHandler::FLV_HEADER_SIZE + $flvWrapper->getMetadataSize($audioOnly) + $fromByte - $firstTagByte;
     } else {
         list($bytes, $duration, $fromByte, $toByte, $fromTs, $cuepointPos) = myFlvStaticHandler::clip($path, $clipFrom, $clipTo, $audioOnly);
     }
     $metadataSize = $flvWrapper->getMetadataSize($audioOnly);
     $dataOffset = $metadataSize + myFlvHandler::getHeaderSize();
     $totalLength = $dataOffset + $bytes;
     list($bytes, $duration, $fromByte, $toByte, $fromTs, $cuepointPos) = myFlvStaticHandler::clip($path, $clipFrom, $clipTo, $audioOnly);
     list($rangeFrom, $rangeTo, $rangeLength) = requestUtils::handleRangeRequest($totalLength);
     if ($totalLength < 1000) {
         // (actually $total_length is probably 13 or 143 - header + empty metadata tag) probably a bad flv maybe only the header - dont cache
         requestUtils::sendCdnHeaders("flv", $rangeLength, 0);
     } else {
         requestUtils::sendCdnHeaders("flv", $rangeLength);
     }
     header('Content-Disposition: attachment; filename="video.flv"');
     // dont inject cuepoint into the stream
//.........这里部分代码省略.........

<?php

list($range_from, $range_to, $range_length) = requestUtils::handleRangeRequest($total_length);
if ($total_length < 1000) {
    // (actually $total_length is probably 13 or 143 - header + empty metadata tag) probably a bad flv maybe only the header - dont cache
    requestUtils::sendCdnHeaders("flv", $range_length, 0);
} else {
    requestUtils::sendCdnHeaders("flv", $range_length);
}
header('Content-Disposition: attachment; filename="video.flv"');
if ($flv_wrapper == null) {
    die;
}
$chunk_size = 1 * 1024 * 1024;
$uri = $_SERVER["REQUEST_URI"];
$startTime = microtime(true);
KalturaLog::info("flvclipperSuccess: start dump range:{$range_length}, total:{$total_length}, {$startTime}, {$chunk_size}, {$from_byte}, {$to_byte}, {$audio_only}, {$dump_from_byte}, {$range_from}, {$range_to}, {$cuepoint_time}, {$cuepoint_pos}, {$uri}");
$flv_wrapper->dump($chunk_size, $from_byte, $to_byte, $audio_only, $dump_from_byte, $range_from, $range_to, $cuepoint_time, $cuepoint_pos);
$endTime = microtime(true);
$diffTime = $endTime - $startTime;
KalturaLog::info("flvclipperSuccess: end dump range:{$range_length}, total:{$total_length}, {$diffTime}, {$endTime}, {$chunk_size}, {$from_byte}, {$to_byte}, {$audio_only}, {$dump_from_byte}, {$range_from}, {$range_to}, {$cuepoint_time}, {$cuepoint_pos}, {$uri}");
die;
// prevent symfony from sending its headers and filling our logs with warnings

//.........这里部分代码省略.........
     // milliseconds
     if (is_null($clipTo)) {
         $clipTo = $this->getRequestParameter("clipTo", self::NO_CLIP_TO);
     }
     // milliseconds
     if ($clipTo == 0) {
         $clipTo = self::NO_CLIP_TO;
     }
     if (!is_numeric($clipTo) || $clipTo < 0) {
         KExternalErrors::dieError(KExternalErrors::BAD_QUERY, 'clipTo must be a positive number');
     }
     $seekFrom = $this->getRequestParameter("seekFrom", -1);
     if ($seekFrom <= 0) {
         $seekFrom = -1;
     }
     $seekFromBytes = $this->getRequestParameter("seekFromBytes", -1);
     if ($seekFromBytes <= 0) {
         $seekFromBytes = -1;
     }
     if ($fileParam && is_dir($path)) {
         $path .= "/{$fileParam}";
         kFileUtils::dumpFile($path, null, null);
         KExternalErrors::dieGracefully();
     } else {
         if (!$isFlv || $clipTo == self::NO_CLIP_TO && $seekFrom < 0 && $seekFromBytes < 0) {
             $limit_file_size = 0;
             if ($clipTo != self::NO_CLIP_TO) {
                 if (strtolower($flavorAsset->getFileExt()) == 'mp4' && PermissionPeer::isValidForPartner(PermissionName::FEATURE_ACCURATE_SERVE_CLIPPING, $flavorAsset->getPartnerId())) {
                     $contentPath = myContentStorage::getFSContentRootPath();
                     $tempClipName = $version . '_' . $clipTo . '.mp4';
                     $tempClipPath = $contentPath . myContentStorage::getGeneralEntityPath("entry/tempclip", $flavorAsset->getIntId(), $flavorAsset->getId(), $tempClipName);
                     if (!file_exists($tempClipPath)) {
                         kFile::fullMkdir($tempClipPath);
                         $clipToSec = round($clipTo / 1000, 3);
                         $cmdLine = kConf::get("bin_path_ffmpeg") . " -i {$path} -vcodec copy -acodec copy -f mp4 -t {$clipToSec} -y {$tempClipPath} 2>&1";
                         KalturaLog::log("Executing {$cmdLine}");
                         $output = array();
                         $return_value = "";
                         exec($cmdLine, $output, $return_value);
                         KalturaLog::log("ffmpeg returned {$return_value}, output:" . implode("\n", $output));
                     }
                     if (file_exists($tempClipPath)) {
                         KalturaLog::log("Dumping {$tempClipPath}");
                         kFileUtils::dumpFile($tempClipPath);
                     } else {
                         KalturaLog::err('Failed to clip the file using ffmpeg, falling back to rough clipping');
                     }
                 }
                 $mediaInfo = mediaInfoPeer::retrieveByFlavorAssetId($flavorAsset->getId());
                 if ($mediaInfo && ($mediaInfo->getVideoDuration() || $mediaInfo->getAudioDuration() || $mediaInfo->getContainerDuration())) {
                     $duration = $mediaInfo->getVideoDuration() ? $mediaInfo->getVideoDuration() : ($mediaInfo->getAudioDuration() ? $mediaInfo->getAudioDuration() : $mediaInfo->getContainerDuration());
                     $limit_file_size = floor(@kFile::fileSize($path) * ($clipTo / $duration) * 1.2);
                 }
             }
             $renderer = kFileUtils::getDumpFileRenderer($path, null, null, $limit_file_size);
             if (!$fileName) {
                 $this->storeCache($renderer, $flavorAsset->getPartnerId());
             }
             $renderer->output();
             KExternalErrors::dieGracefully();
         }
     }
     $audioOnly = $this->getRequestParameter("audioOnly");
     // milliseconds
     if ($audioOnly === '0') {
         // audioOnly was explicitly set to 0 - don't attempt to make further automatic investigations
     } elseif ($flvWrapper->getFirstVideoTimestamp() < 0) {
         $audioOnly = true;
     }
     $bytes = 0;
     if ($seekFrom !== -1 && $seekFrom !== 0) {
         list($bytes, $duration, $firstTagByte, $toByte) = $flvWrapper->clip(0, -1, $audioOnly);
         list($bytes, $duration, $fromByte, $toByte, $seekFromTimestamp) = $flvWrapper->clip($seekFrom, -1, $audioOnly);
         $seekFromBytes = myFlvHandler::FLV_HEADER_SIZE + $flvWrapper->getMetadataSize($audioOnly) + $fromByte - $firstTagByte;
     } else {
         list($bytes, $duration, $fromByte, $toByte, $fromTs, $cuepointPos) = myFlvStaticHandler::clip($path, $clipFrom, $clipTo, $audioOnly);
     }
     $metadataSize = $flvWrapper->getMetadataSize($audioOnly);
     $dataOffset = $metadataSize + myFlvHandler::getHeaderSize();
     $totalLength = $dataOffset + $bytes;
     list($bytes, $duration, $fromByte, $toByte, $fromTs, $cuepointPos) = myFlvStaticHandler::clip($path, $clipFrom, $clipTo, $audioOnly);
     list($rangeFrom, $rangeTo, $rangeLength) = requestUtils::handleRangeRequest($totalLength);
     if ($totalLength < 1000) {
         // (actually $total_length is probably 13 or 143 - header + empty metadata tag) probably a bad flv maybe only the header - dont cache
         requestUtils::sendCdnHeaders("flv", $rangeLength, 0);
     } else {
         requestUtils::sendCdnHeaders("flv", $rangeLength);
     }
     // dont inject cuepoint into the stream
     $cuepointTime = 0;
     $cuepointPos = 0;
     try {
         Propel::close();
     } catch (Exception $e) {
         $this->logMessage("serveFlavor: error closing db {$e}");
     }
     header("Content-Type: video/x-flv");
     $flvWrapper->dump(self::CHUNK_SIZE, $fromByte, $toByte, $audioOnly, $seekFromBytes, $rangeFrom, $rangeTo, $cuepointTime, $cuepointPos);
     KExternalErrors::dieGracefully();
 }