这是一个老问题,但我相信我有更好的答案。
您不必将视频写入硬盘,也不能将整个视频保存在 RAM 中(我认为它是一个大文件)。
您可以使用 PHP AWS SDK 和 Google 客户端库缓冲来自 S3 的文件并将其即时发送到 YouTube。使用 registerStreamWrapper 方法将 S3 注册为文件系统并使用 YouTube API 的可断点上传。然后您所要做的就是使用 fread 从 S3 读取块并将它们发送到 YouTube。这样您甚至可以限制 RAM 使用。
我假设您从 Google_Video 类创建了视频对象(代码中的 $video)。这是一个完整的代码。
<?php
require_once 'path/to/libraries/aws/vendor/autoload.php';
require_once 'path/to/libraries/google-client-lib/autoload.php';
use Aws\S3\S3Client;
$chunkSizeBytes = 2 * 1024 * 1024; // 2 mb
$streamName = 's3://bucketname/video.mp4';
$s3client = S3Client::factory(array(
'key' => S3_ACCESS_KEY,
'secret' => S3_SECRET_KEY,
'region' => 'eu-west-1' // if you need to set.
));
$s3client->registerStreamWrapper();
$client = new Google_Client();
$client->setClientId(YOUTUBE_CLIENT_ID);
$client->setClientSecret(YOUTUBE_CLIENT_SECRET);
$client->setAccessToken(YOUTUBE_TOKEN);
$youtube = new Google_YoutubeService($client);
$media = new Google_MediaFileUpload('video/*', null, true, $chunkSizeBytes);
$filesize = filesize($streamName); // use it as a reguler file.
$media->setFileSize($filesize);
$insertResponse = $youtube->videos->insert("status,snippet", $video, array('mediaUpload' => $media));
$uploadStatus = false;
$handle = fopen($streamName, "r");
$totalReceived = 0;
$chunkBuffer = '';
while (!$uploadStatus && !feof($handle)) {
$chunk = fread($handle, $chunkSizeBytes);
$chunkBuffer .= $chunk;
$chunkBufferSize = strlen($chunkBuffer);
if($chunkBufferSize > $chunkSizeBytes) {
$fullChunk = substr($chunkBuffer, 0, $chunkSizeBytes);
$leapChunk = substr($chunkBuffer, $chunkSizeBytes);
$uploadStatus = $media->nextChunk($insertResponse, $fullChunk);
$totalSend += strlen($fullChunk);
$chunkBuffer = $leapChunk;
echo PHP_EOL.'Status: '.($totalReceived).' / '.$filesize.' (%'.(($totalReceived / $filesize) * 100).')'.PHP_EOL;
}
$totalReceived += strlen($chunk);
}
$extraChunkLen = strlen($chunkBuffer);
$uploadStatus = $media->nextChunk($insertResponse, $chunkBuffer);
$totalSend += strlen($chunkBuffer);
fclose($handle);