Ooyala Backlot API based Video Asset Content Replacement

content_replacement.php

<?php
#This is a standalone script for doing Content Replacement in Ooyala Backlot
#This script requires Ooyala API SDK available at https://github.com/ooyala/php-v2-sdk
#1. Clone the SDK Repo from https://github.com/ooyala/php-v2-sdk
#2. Keep the file in the repo
#3. Update API Key, Secret, Embed Code, FileName
#4. Run "php content_replacement.php"

set_time_limit(36000);
ini_set('memory_limit', '50G');
ini_set('display_errors', 'On');
date_default_timezone_set('America/Los_Angeles');

//From https://github.com/ooyala/php-v2-sdk
require_once("OoyalaApi.php");

$api_key = "xxxx12345";  // Put Ooyala API Key
$api_secret = "yyyy23456"; // Put Ooyala API Secret
$embedCode = "abc1234"; // Put Embedcode to be replaced
$fileName = "Sample.mp4"; // File location



//Create API instance.
$OoApi = new OoyalaApi($api_key, $api_secret);

$file = "./$fileName";
$handle = fopen($file, "r");
$content = fread($handle, filesize($file));
$fileSize=filesize($file);
echo "Staring Content Repalcement for embed_code:".$embedCode;
echo "\nReplacement fileSize:".$fileSize;


$chunkSize=10*1024*1024; //Max recommended chunk size is 100 MB for large files
echo "\nChunk Size:".$chunkSize;
$count=0;

$params = array(
	"user_permission" => "admin",
	"limit" => "500",
	"file_size" => $fileSize,
	"chunk_size" => (string)$chunkSize

);

//Set the asset on "replacement" state. (Required prior to get the upload URLs)
echo "\nCalling POST /assets/:embed_code/repalcement";

$replacement_response=$OoApi->post("assets/".$embedCode."/"."replacement",$params); //Execute the change

//Get uploading URLs from Ooyala API.
echo "\nGenerate Uploading URLs. Calling GET /assets/:embed_code/repalcement/uploading_urls";

$urls=$OoApi->get("assets/".$embedCode."/"."replacement/uploading_urls");

$i =0;

echo "\nUploading Chunks";
foreach ($urls as $url) {

  #echo "\n"."url/chunk number: ".$i."     ".date("h:i:sa");;
  echo "\n"."Uploading url/chunk#: ".$i." of ".count($urls)." Timestamp: ".date("h:i:sa");;

  $i=$i+1;
	$first_attempt = true;
	while($need_retry || $first_attempt) {
		$need_retry = false;
		$chunk = file_get_contents($file, NULL, NULL, $count, (string)$chunkSize);

			//--------------------------------------------------------upload file
			$ch = curl_init($url);
			curl_setopt ($ch, CURLOPT_RETURNTRANSFER, true);
			curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
			curl_setopt ($ch, CURLOPT_HTTPHEADER, Array("Content-Type: multipart/mixed"));
			curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "PUT");
			curl_setopt($ch, CURLOPT_POSTFIELDS, $chunk);
			curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
			$postResult = curl_exec($ch);
			echo $postResult;
			//--------------------------------------------------------
			$first_attempt = false;

			// Check if any error occured
		if(!curl_errno($ch))
		{
			$count = $count+$chunkSize;
			echo "\n"."Total file Uploaded so far is: ".$count;
			$info = curl_getinfo($ch);

		 	echo  "\n"."Chunk Upload HTTP response: ".$info['http_code']."\n" ;
		}
		else
		{
			$need_retry = true;
			echo 'Curl error: ' . curl_error($ch).  $info['http_code'] ;

		}
	}
} //foreach ends.

$empty_queryParams = array();

echo "\nAll chunks uploaded successfully";
echo "\nSetting Asset Status to uploaded. Calling PUT /assets/:embed_code/upload_status";
//Change status on API to uploaded.
$requestBody = array(
		"status" => "uploaded"
	);

$OoApi->put("assets/".$embedCode."/"."replacement/upload_status",$requestBody,$empty_queryParams);
echo "\nContent to be replaced is uploaded. Transcoding will be triggered as per the standard process. Check Backlot UI for progress \n"

?>