在PHP中从视频创建缩略图的更好方法是什么？ [英] What is the better way to create thumbnails from video in PHP?

问题描述

我正在创建一个视频广播网站，我需要知道如何从视频中创建缩略图。请帮忙。任何建议或参考将受到高度赞赏

I am creating a video broadcasting site, in which i need to know how to create thumbnails from the video. Please Help. Any Suggestions or References will be highly appreciated

推荐答案

这是一个从视频中间抓取一个帧的片段。这是我躺在的旧代码，所以我相信它可以简化。请务必调整第1行中的ffmpeg路径以匹配安装位置。

Here's a snippet to grab a frame from the middle of a video. It is old code I have lying around, so I'm sure it could be simplified. Be sure to adjust the ffmpeg path in line 1 to match the location of your install.

$output = shell_exec("/usr/local/bin/ffmpeg -i {$path}");
preg_match('/Duration: ([0-9]{2}):([0-9]{2}):([^ ,])+/', $output, $matches);
$time = str_replace("Duration: ", "", $matches[0]);
$time_breakdown = explode(":", $time);
$total_seconds = round(($time_breakdown[0]*60*60) + ($time_breakdown[1]*60) + $time_breakdown[2]);
shell_exec("/usr/local/bin/ffmpeg -y  -i {$input_filepath} -f mjpeg -vframes 1 -ss " . ($total_seconds / 2) . " -s {$w}x{$h} {$output_filepath}";

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