背景:
我在 Laravel 5.3
我正在使用 youtube-dl
下载 YouTube 视频,使用 Symfony
Process
:
$command = '/usr/local/bin/youtube-dl -o '.$new_file_path.' '.$youtube_id;
$process = new Process($command);
$process->setTimeout(null);
$process->run();
Process
运行后,我将下载的文件放在预期位置。现在我可以将它存储到 S3,如下所示:
\Storage::disk('s3')->putFile($s3_location, new File($new_file_path));
问题
如您所见,我正在将文件下载到本地存储,然后上传到 S3。如果我能直接写到 S3 就太好了。特别是因为两个组件都支持流式传输——Process 类可以流式输出输出,而 S3 Storage 可以存储流,如下所示:
// Process class supports streamed output
// https://symfony.com/doc/current/components/process.html
// note the '-' after '-o' parameter - it asks youtube-dl to give a stream output, which can be piped in a shell
$process = new Process('/usr/local/bin/youtube-dl -o - '.$youtube_id;);
$process->start();
foreach ($process as $type => $data) {
if ($process::OUT === $type) {
echo "\nRead from stdout: ".$data;
} else { // $process::ERR === $type
echo "\nRead from stderr: ".$data;
}
}
还有,
// S3 Storage supports streams
// https://laravel.com/docs/5.3/filesystem#storing-files
Storage::put('file.jpg', $resource);
我的问题是 - 有没有办法将 Process
类的流式输出包装为 Resource/Stream 对象,并将其传递给 S3 存储?
最佳答案
更正:脚本实际上上传了所有可用的 block ,因为 file_get_contents
将继续到达 EOF
您需要确保有足够的可用内存,因为脚本不会处理可用内存的总大小与视频总大小的关系。
请注意我没有实际测试这个,因为我没有 s3 帐户,如果有任何问题请告诉我以更正答案。
// create ramdrive
// bash $ mkdir /mnt/ram_disk
// bash $ mount -t tmpfs -o size=1024m new_ram_disk /mnt/ram_disk
$array_of_youtube_ids = ['abc001', 'abc002' , 'abc003'];
$storage_path = '/mnt/ram_disk/';
// start all downloads
$index = 0;
foreach ($array_of_youtube_ids as $id){
$youtube_dls$index] = new YouTubeDlAsync($storage_path.$id, $id);
$youtube_dls[$index]->start();
$index ++;
}
// upload all downloads
$index = 0;
foreach ($array_of_youtube_ids as $id){
$s3uploads[$index] = new UploadToS3($storage_path.$id, $resource);
$s3uploads[$index]->start();
$index ++;
}
// Wait for all downloads to finish
foreach ($youtube_dls as $youtube_dl)
$youtube_dl->join();
// Wait for all uploads to finish
foreach ($s3uploads as $s3upload)
$s3upload->join();
class YouTubeDlAsync extends Thread {
public function __construct($new_file_path, $youtube_id) {
$command = '/usr/local/bin/youtube-dl -o '.$new_file_path.' '.$youtube_id;
exec($command);
}
}
class UploadToS3 extends Thread {
public function __construct($new_file_path, $resource) {
Storage::put(file_get_contents('file.jpg'), $resource);
}
}
关于php - 使用 Laravel 将 youtube-dl 输出流式传输到 S3,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/54366889/