/**
* See contract for documentation
*/
public function loadMedia($media)
{
// Set up the basics
$return_files = array('full' => '', 'chunks' => array());
$source_media_path = $media->media_path;
// Extract relevant pieces of the specified media path
$parsed_url = parse_url($source_media_path);
$media_scheme = $parsed_url['scheme'];
$media_host = $parsed_url['host'];
$media_user = array_key_exists('user', $parsed_url) ? $parsed_url['user'] : "";
$media_path = $parsed_url['path'];
$parsed_path = pathinfo($media_path);
$file_type = array_key_exists('extension', $parsed_path) ? $parsed_path['extension'] : "mp3";
// Set up the pieces of the destination file names
$destination_file_base = $this->getFileBase($media);
$destination_directory = env('FPRINT_STORE') . 'media_cache/';
$temp_media_file = $destination_file_base . "." . $file_type;
$temp_media_path = $destination_directory . $temp_media_file;
// If the file doesn't exist, download it
if (file_exists($temp_media_path)) {
$return_files['full'] = $temp_media_file;
} else {
$temp_media_file = $this->loadFile($source_media_path, $destination_directory, $destination_file_base, $file_type);
if ($temp_media_file == "") {
throw new \Exception("Could not download the media: " . $source_media_path);
}
// Save the media path
$return_files['full'] = $temp_media_file;
// Set up PHPVideoToolkit (for use in the next steps)
$config = new \PHPVideoToolkit\Config(array('temp_directory' => '/tmp', 'ffmpeg' => env('FFMPEG_BINARY_PATH'), 'ffprobe' => env('FFPROBE_BINARY_PATH'), 'yamdi' => '', 'qtfaststart' => ''), true);
// Slice down the new media file if it has a listed start / duration
if ($media->duration > 0) {
// Extract the section we care about
$start = new \PHPVideoToolkit\Timecode($media->start);
$end = new \PHPVideoToolkit\Timecode($media->start + $media->duration);
// Process differently based on the file type
switch ($file_type) {
case 'mp3':
case 'wav':
$audio = new \PHPVideoToolkit\Audio($temp_media_path, null, null, false);
$command = $audio->extractSegment($start, $end);
break;
case 'mp4':
$video = new \PHPVideoToolkit\Video($temp_media_path, null, null, false);
$command = $video->extractSegment($start, $end);
break;
}
// We need to save as a separate file then overwrite
$trimmed_media_path = $temp_media_path . "trimmed." . $file_type;
$process = $command->save($trimmed_media_path, null, true);
rename($trimmed_media_path, $temp_media_path);
}
}
// Check if the file parts already exist
$chunk_glob_path = $destination_directory . $destination_file_base . "_*." . $file_type;
$chunk_paths = glob($chunk_glob_path);
// If the chunks already exist use them, otherwise make them.
if (sizeof($chunk_paths) > 0) {
foreach ($chunk_paths as $chunk_path) {
$return_files['chunks'][] = basename($chunk_path);
}
} else {
// Calculate the number of chunks needed
$parser = new \PHPVideoToolkit\MediaParser();
$media_data = $parser->getFileInformation($temp_media_path);
$slice_duration = env('FPRINT_CHUNK_LENGTH');
$duration = $media_data['duration']->total_seconds;
// Perform the actual slicing
// TODO: there is an issue where slices that are too small might cause errors.
// We will need to add logic to detect those and merge them into the previous slice
if ($duration > env('FPRINT_CHUNK_LENGTH') + 60) {
switch ($file_type) {
case 'mp3':
case 'wav':
$audio = new \PHPVideoToolkit\Audio($temp_media_path, null, null, false);
$slices = $audio->split(env('FPRINT_CHUNK_LENGTH'));
break;
case 'mp4':
$video = new \PHPVideoToolkit\Video($temp_media_path, null, null, false);
$slices = $video->split(env('FPRINT_CHUNK_LENGTH'));
break;
}
$process = $slices->save($destination_directory . $destination_file_base . "_%index." . $file_type);
$output = $process->getOutput();
// Get the filenames
foreach ($output as $chunk) {
$return_files['chunks'][] = basename($chunk->getMediaPath());
}
} else {
$copy_path = str_replace("." . $file_type, "_0." . $file_type, $temp_media_path);
copy($temp_media_path, $copy_path);
$return_files['chunks'][] = basename($copy_path);
}
}
return $return_files;
}
<?php
include_once './includes/bootstrap.php';
try {
$audio = new \PHPVideoToolkit\Audio('media/Ballad_of_the_Sneak.mp3', $config);
$process = $audio->getProcess();
$output = $audio->extractSegment(new \PHPVideoToolkit\Timecode(10), new \PHPVideoToolkit\Timecode(20))->save('./output/test-' . time() . '.mp3');
echo '<h1>Executed Command</h1>';
\PHPVideoToolkit\Trace::vars($process->getExecutedCommand());
echo '<hr /><h1>FFmpeg Process Messages</h1>';
\PHPVideoToolkit\Trace::vars($process->getMessages());
echo '<hr /><h1>Buffer Output</h1>';
\PHPVideoToolkit\Trace::vars($process->getBuffer(true));
} catch (\PHPVideoToolkit\FfmpegProcessOutputException $e) {
echo '<h1>Error</h1>';
\PHPVideoToolkit\Trace::vars($e);
$process = $audio->getProcess();
if ($process->isCompleted()) {
echo '<hr /><h2>Executed Command</h2>';
\PHPVideoToolkit\Trace::vars($process->getExecutedCommand());
echo '<hr /><h2>FFmpeg Process Messages</h2>';
\PHPVideoToolkit\Trace::vars($process->getMessages());
echo '<hr /><h2>Buffer Output</h2>';
\PHPVideoToolkit\Trace::vars($process->getBuffer(true));
}
} catch (\PHPVideoToolkit\Exception $e) {
echo '<h1>Error</h1>';
\PHPVideoToolkit\Trace::vars($e);
}