PHP upload video files to database - php

Question

I am working on a school project that let users upload video files to a server. Server will compress the video using ffmpeg and store the file in upload folder. Other users will be able to stream the uploaded videos.
My question is how do i retrieve the video that ffmpeg generated and store the link in the database?
i am using this code but it only retrieve path of the original video.
$filePath = dirname(__FILE__);
partial code of Upload.php
$target_dir = "upload/"; //where you want to upload the files to
$target_file = $target_dir.basename($_FILES['file']['name']);
$fileType = pathinfo($target_file, PATHINFO_EXTENSION);
$newFileName = $target_dir.sha1(pathinfo(basename($_FILES['file']['name']), PATHINFO_FILENAME)).'-'.time().'.'.$fileType;
move_uploaded_file($_FILES['file']['tmp_name'], $newFileName);
$unique_id = rand(1000000,9999999);
shell_exec("C:\\ffmpeg\\bin\\ffmpeg.exe -i ".$newFileName." -vcodec libx264 -crf 20 \"upload\\{$newFileName}\" > logfile.txt 2>&1");
/// save information into database
$username = "root";
$password = "";
$hostname = "localhost";
$dbname = "test_database";
//connect to the database
$dbc = mysqli_connect($hostname, $username, $password, $dbname) or die ("could not connect to the database");
//execute the SQL query and return records
$result = mysqli_query($dbc, "INSERT INTO `viewvideo` (`vID`, 'video_id`, `video_link`) VALUES ('', '".$unique_id."', '".$newFileName."')");
if(!$result){echo mysqli_error($dbc); }
echo $result;
/*
declare in the order variable
$result = mysqli_query($dbc, $sql); //order executes
if($result){
echo("<br>Input data is succeed");
} else{
echo("<br>Input data is fail");
}
*/
//close the connection
mysqli_close($dbc);
output

Answer 1

Remember to move the uploaded file to a directory of your choice. A way to prevent files overwriting each other is creating a new name for it. Do this when the upload is a success.
Properly uploading & adding the video to the database
$target_dir = "video/"; //where you want to upload the files to
$target_file = $target_dir.basename($_FILES['file']['name']);
$fileType = pathinfo($target_file, PATHINFO_EXTENSION);
$newFileName = $target_dir.sha1(pathinfo(basename($_FILES['file']['name']), PATHINFO_FILENAME)).'-'.time().'.'.$fileType;
move_uploaded_file($_FILES['file']['tmp_name'], $newFileName);
After that you'll have to create a table & insert two core things; a unique/token generated ID for the video and the $newFileName path.
You can either use a function which generates a token/id which includes alpha-numeric characters or something simple as this
$unique_id = rand(1000000,9999999);
Lets consider you have a table videos with 3 columns; vID, video_id & video_link
vID should be an auto incrementing INT. video_id would be a INT and the video_link a TEXT type.
After that it's SQL.
$result = mysqli_query($db_connection, "INSERT INTO `videos` (`vID`, video_id`, `video_link`) VALUES ('', '".$unique_id."', '".$newFileName."'");
if(!$result){echo mysqli_error($db_connection); }
Retrieving it would be something like this. Be sure to add this on another page. Let's consider stream.php as the page's name for streaming the video.
if(isset($_GET['id'])){
$id = trim($_GET['id']);
//check if it exists
$result = mysqli_query($db_connection , "SELECT `video_id`, `video_link` FROM `videos` WHERE `video_id`='".$id."'");
$count = mysqli_num_rows($result);
//does it exist?
if($count>0){
//exists, so fetch it in an associative array
$video_arr = mysqli_fetch_assoc($result);
//this way you can use the column names to call out its values.
//If you want the link to the video to embed it;
echo "Video Link: ".$video_arr['video_link'];
}else{
//does not exist
}
}
And finally, creating a link to it: http://your-website.com/stream.php?id=video id here