<?php
$inputFile = '/www/image/video/20250401/305c5a1dec71aa2b5f2de1403f8da74f.mp4';
$watermarkImage = '/www/image/logo/logo.png';
$outputFile = '/www/image/video/20250401/output.mp4';

// 修改 FFmpeg 命令，添加 scale 滤镜调整水印大小
$command = "ffmpeg -i /video/20250402/1c1410e5b048da786988f32782efa8ad.mp4 -i /www/image/logo/logo.png -filter_complex '[1:v]scale=200:-1[wm];[0:v][wm]overlay=W-w-10:10' -c:a copy /www/image/video/20250402/798d02eaab121b5787afa9a9f1bf9aa1.mp4";
exec($command, $output, $returnVar);

if ($returnVar === 0) {
    echo "水印添加成功！";
} else {
    echo "处理失败：" . implode("\n", $output);
}