Question

我有一个用于流式传输音频文件的网站。主要是MP3和MP3 OGG。几个月以来，我处理自己（PHP）的蒸汽部分（在它之前是apache2）。首先，我使用我的多媒体音频文件的切片二进制响应（用于内存分配）进行正常的200 OK响应。它工作正常，但我的所有音频都有无限期。根据{{3}}问题，我昨天更新了流媒体部分。

现在，我有一个我能想象到的最奇怪的错误。我的代码重构工作得非常好用MP3而不是OGG ...图片或zip下载也适用于上面的类，它们都像以前一样工作正常。

这是我的Stream课程。

<?php
class Stream extends Response
{
    protected $filepath;
    protected $delete;
    protected $range = ['from' => 0, 'to' => null];

    public function __construct($filePath, $delete = false, $range = NULL)
    {
        $this->delete = $delete;
        $finfo = finfo_open(FILEINFO_MIME_TYPE);
        $mimeType = finfo_file($finfo, $filePath);
        $size = filesize($filePath);

        $this->headers['Content-Type'] = $mimeType;
        $this->headers['Content-Length'] = $size;
        $this->headers['Accept-Ranges'] = 'bytes';
        $this->headers['Content-Transfer-Encoding'] = 'binary';
        unset($finfo, $mimeType);

        $this->code = 200;
        $this->range['to'] = $size - 1;

        if ($range !== NULL) {
            if (preg_match('/^bytes=\d*-\d*(,\d*-\d*)*$/i', $range) === false) {
                $this->code = 416;
            } else {
                $ranges = explode(',', substr($range, 6));
                foreach ($ranges as $rangee) {
                    $parts = explode('-', $rangee);
                    $this->range['from'] = intval($parts[0]);
                    $this->range['to'] = intval($parts[1]);

                    if (empty($this->range['to'])) {
                        $this->range['to'] = $size - 1;
                    }
                    if ($this->range['from'] > $this->range['to'] || $this->range['to'] >= $size) {
                        $this->code = 416;
                    }
                }
                $this->code = 206;
            }

        }

        if ($this->code === 416) {
            $this->headers = ['Content-Range' => 'bytes */{' . $size . '}'];
        } elseif ($this->code === 206) {
            $this->headers['Content-Range'] = 'bytes {' . $this->range['from'] . '}-{' . $this->range['to'] . '}/{' . $size . '}';
        }

        $this->filepath = $filePath;
    }

    public function show()
    {
        http_response_code($this->code);

        foreach ($this->headers as $header => $value) {
            header($header . ': ' . $value);
        }

        $file = fopen($this->filepath, 'r');
        fseek($file, $this->range['from']);

        $interval = $this->range['to'] - $this->range['from'];
        $outputBufferInterval = 4 * 1000;

        if ($interval < $outputBufferInterval) {
            $outputBufferInterval = $interval;
        }

        ob_start();
        while ($interval > 0) {
            echo fread($file, $outputBufferInterval);
            $interval -= $outputBufferInterval;
            ob_flush();
        }
        fclose($file);
        ob_end_clean();

        if ($this->delete) {
            unlink($this->filepath);
        }
    }
}

我对HTTP_RANGE感到困惑。谢谢，

HTTP范围，流媒体，音乐和音频

0 个答案: