jyxjjj/media.html

## media.html
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
    <title>Media</title>
    <link rel="dns-prefetch" href="https://unpkg.com">
    <link rel="preconnect" href="https://unpkg.com">
    <link href="https://unpkg.com/bootstrap@3.4.1/dist/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
    <div>
        <div id="initer">
            请等待初始化...
        </div>
        <div id="inited" style="display: none;">
            <div class="input-group">
                <span class="input-group-addon">原视频所在文件夹(-i)</span>
                <input type="text" class="form-control" name="input" id="input">
            </div>
            <div class="input-group">
                <span class="input-group-addon">输出目标文件夹</span>
                <input type="text" class="form-control" name="output" id="output">
            </div>
            <div class="input-group">
                <span class="input-group-addon">视频开始时间(-ss)</span>
                <input type="text" class="form-control" name="ss" id="ss" placeholder="00:00:03.000" value="00:00:03.000">
            </div>
            <div class="alert alert-info" style="margin-bottom: 0;">
                (移除3秒请输入00:00:03.000)
            </div>
            <div class="input-group">
                <span class="input-group-addon">视频结束时间(-to)</span>
                <input type="text" class="form-control" name="to" id="to">
            </div>
            <div class="alert alert-info" style="margin-bottom: 0;">
                (不统一视频时长或称保留原视频时长请留空)
            </div>
            <div class="input-group">
                重新编码(-c:v libx264 -c:a aac)
                <input type="checkbox" name="recovert" id="recovert">
            </div>
            <div class="alert alert-warning" style="margin-bottom: 0;">
                (如希望保留原视频比特率、帧率、音频比特率、音频采样率，请不要选择重新编码)
            </div>
            <div id="params" style="display: none;">
                <div class="input-group">
                    <span class="">尝试使用NVIDIA GPU加速(-c:v h264_nvenc)</span>
                    <input type="checkbox" name="gpu" id="gpu">
                </div>
                <div class="alert alert-danger" id="noNVIDIA" style="display: none;">
                    您的系统不支持NVIDIA GPU加速
                </div>
                <div class="input-group">
                    <span class="input-group-addon">视频比特率(-b:v)</span>
                    <input type="number" class="form-control" name="vbitrate" id="vbitrate" min="1000" max="10200" step="100">
                </div>
                <div class="alert alert-info" style="margin-bottom: 0;">
                    (1440k请输入1440，2M请输入2048)
                    <br />
                    (常用比特率列表请参考：<a class="alert-link" href="https://support.google.com/youtube/answer/1722171?hl=zh-Hans">Google Youtube Support</a>)
                    <br />
                    (注意：设置更高比特率将保留更高画质，但如果原视频无法达到该比特率，则设置更高比特率没有任何意义，反而会增加文件大小)
                    <br />
                    (如希望让系统自动设置，请输入0)
                </div>
                <div class="input-group">
                    <span class="input-group-addon">视频帧率(-r)</span>
                    <select class="form-control" name="vrate" id="vrate">
                        <option value="23.98">23.98</option>
                        <option value="24">24</option>
                        <option value="30" selected>30</option>
                        <option value="60">60</option>
                    </select>
                </div>
                <div class="input-group">
                    <span class="input-group-addon">音频比特率(-b:a)</span>
                    <select class="form-control" name="abitrate" id="abitrate">
                        <option value="128" selected>128k</option>
                        <option value="192">192k</option>
                        <option value="256">256k</option>
                    </select>
                </div>
                <div class="input-group">
                    <span class="input-group-addon">音频采样率(-ar)</span>
                    <select class="form-control" name="arate" id="arate">
                        <option value="44100" selected>44100Hz</option>
                        <option value="48000">48000Hz</option>
                    </select>
                </div>
            </div>
            <a class="btn btn-primary btn-sm" href="javascript:refreshdemo();">刷新样例</a>
            <a class="btn btn-primary btn-sm" href="javascript:startgenerate();">开始生成</a>
            <div id="stdout1">
                命令样例：<br />
                <code id="stdout1_span">ffmpeg -i '输入文件名' -ss 00:00:03.000 -c:v copy -c:a copy '输出文件名'</code>
            </div>
            <textarea readonly id="stdout2" class="form-control" style="height: 200px;"></textarea>
            <a class="btn btn-primary btn-sm" id="copier" href="javascript:copyresult();">复制输出结果</a>
        </div>
    </div>
    <script src="https://unpkg.com/jquery@3.6.0/dist/jquery.min.js"></script>
    <script src="https://unpkg.com/bootstrap@3.4.1/dist/js/bootstrap.min.js"></script>
    <script>
        let win = nw.Window.get();
        win.height = 920;
        win.width = 1280;
        win.on('close', event => {
            win.close(true);
            App.quit();
        });
        $('#inited').show();
        $('#initer').hide();
        $('#recovert').on('change', () => {
            if ($('#recovert').is(':checked')) {
                $('#params').show();
            } else {
                $('#params').hide();
            }
        });
    </script>
    <script>
        let demo = $('#stdout1_span');
        demo.text("ffmpeg -hide_banner -i \"输入文件名\" -ss 00:00:03.000 -c:v copy -c:a copy \"输出文件名\"");
    </script>
    <script>
        checkNVIDIA = () => {
            let noNVIDIA = $('#noNVIDIA');
            const cp = require('child_process');
            let proc = cp.spawnSync('ffmpeg', [
                '-hide_banner',
                '-encoders',
            ], {
                maxBuffer: 4096 * 4096,
                shell: false,
                windowsHide: true,
            });
            if (proc.stdout.toString().includes('h264_nvenc')) {
                noNVIDIA.hide();
                return true;
            } else {
                noNVIDIA.show();
                return false;
            }
        }
        refreshdemo = () => {
            let ss = $('#ss').val();
            let to = $('#to').val();
            let recovert = $('#recovert').is(':checked');
            let useNVIDIA = $('#gpu').is(':checked');
            let vbitrate = $('#vbitrate').val();
            let vrate = $('#vrate').val();
            let abitrate = $('#abitrate').val();
            let arate = $('#arate').val();
            let cmd = `ffmpeg -hide_banner -i "输入文件名"`;
            ss != '' && (cmd += ` -ss ${ss}`);
            to != '' && (cmd += ` -to ${to}`);
            if (recovert) {
                if (useNVIDIA && checkNVIDIA()) {
                    cmd += ` -c:v h264_nvenc`;
                } else {
                    cmd += ` -c:v libx264`;
                }
                if (vbitrate == '') {
                    vbitrate = 0;
                }
                if (vbitrate != 0) {
                    cmd += ` -b:v ${vbitrate}k`;
                }
                cmd += ` -r ${vrate} -c:a aac -b:a ${abitrate}k -ar ${arate}`;
            } else {
                cmd += ` -c:v copy -c:a copy`;
            }
            cmd += ` "输出文件名"`;
            demo.text(cmd);
        }
        startgenerate = () => {
            refreshdemo();
            const fs = require('fs');
            let input = $('#input').val();
            let output = $('#output').val();
            if (input == '') {
                alert('请输入原视频所在文件夹');
                return;
            }
            if (output == '') {
                alert('请输入输出目标文件夹');
                return;
            }
            let cmd = demo.text();
            input = input.replace(/\\/g, '/');
            output = output.replace(/\\/g, '/');
            // scan input dir
            let files = [];
            let dir = fs.readdirSync(input);
            for (let i = 0; i < dir.length; i++) {
                let file = dir[i];
                // if not dir, push to files
                if (!fs.statSync(`${input}/${file}`).isDirectory()) {
                    console.log(`${input}/${file}`);
                    files.push(file);
                }
            }
            // generate cmd
            let cmds = [];
            for (let i = 0; i < files.length; i++) {
                let file = files[i];
                console.log(file);
                temp = cmd.replace(/输入文件名/g, `${input}/${file}`);
                temp = temp.replace(/输出文件名/g, `${output}/${file}`);
                cmds.push(temp);
            }
            // out put cmd to textarea
            let stdout = $('#stdout2');
            stdout.text('');
            for (let i = 0; i < cmds.length; i++) {
                stdout.text(stdout.text() + cmds[i] + '\n');
            }
        }
        copyresult = () => {
            let stdout = $('#stdout2');
            let clipboard = nw.Clipboard.get();
            clipboard.set(stdout.text(), 'text');
            let copier = $('#copier');
            if (clipboard.get('text') == stdout.text()) {
                copier.text('复制成功');
                setTimeout(() => {
                    copier.text('复制输出结果');
                }, 1000);
            }
        }
    </script>
</body>
</html>

## media.php
<?php

namespace App\Commands;

use Illuminate\Console\Scheduling\Schedule;
use LaravelZero\Framework\Commands\Command;

class BuildCommand extends Command
{
    protected $signature = 'build';
    protected $description = 'Build Media Commands to remove 3 seconds at the video start';

    public function handle(): int
    {
        $input = $this->anticipate('请输入现有媒体文件所在文件夹', []);
        if (!is_dir($input)) {
            $this->error('输入文件夹不存在');
            return self::INVALID;
        }
        $output = $this->anticipate('请输入媒体文件输出目标文件夹', []);
        if (!is_dir($output)) {
            $this->error('输出文件夹不存在');
            return self::INVALID;
        }
        $this->info('本工具暂只支持修改输出文件编码，输入文件的编码将使用默认解码器进行CPU解码');
        $recode = $this->ask('是否重新编码为h264+aac格式？(请输入y或n)', 'y');
        $recode = $recode === 'y';
        if ($recode) {
            $acodec = 'aac';
            $useNvidia = $this->ask('是否尝试使用NVIDIA加速？(请输入y或n)', 'y');
            $useNvidia = $useNvidia === 'y';
            if ($useNvidia) {
                $encoder = $this->getEncoder();
            } else {
                $encoder = 'libx264';
            }
            if ($useNvidia && $encoder === 'libx264') {
                $this->warn('尝试使用NVIDIA加速失败，你的计算机没有安装NVIDIA显卡。');
                $this->info('如果你的计算机已经安装了NVIDIA显卡，请点此联系作者：https://t.me/jyxjjj');
            } else {
                $this->info('成功检测到NVIDIA显卡加速支持');
            }
            $this->info("将使用{$encoder}编码器");
            $vcodec = $encoder;
        } else {
            $vcodec = 'copy';
            $acodec = 'copy';
        }
        if ($vcodec == 'copy') {
            $command = "ffmpeg -hide_banner -i '输入文件名' -ss 00:00:03.00 -c:v copy -c:a copy '输出文件名'";
        } else {
            $vbitrate = $this->anticipate(<<<EOF
请输入输出视频比特率
(请勿输入单位如K、M。但必须使用以K为单位的纯数字。如1440k请输入1440，2M请输入2048)
(常用比特率列表请参考：https://support.google.com/youtube/answer/1722171?hl=zh-Hans)
(注意：设置更高比特率将保留更高画质，但如果原视频无法达到该比特率，则设置更高比特率没有任何意义)
(如希望让系统自动设置，请输入0，如希望保留原视频比特率，请重新运行本命令，且不要选择重新编码)
请输入输出视频比特率
EOF
                , []);
            $abitrate = $this->choice(<<<EOF
请输入输出音频比特率
暂只支持128或192或256
(请勿输入单位如K。但必须使用以K为单位的纯数字。如128k请输入128)
(如希望让系统自动设置，请输入0，如希望保留原音频比特率，请重新运行本命令，且不要选择重新编码)
请输入输出音频比特率
EOF
                , ['0', '128', '192', '256',], 0);
            $vrate = $this->choice(<<<EOF
请输入输出视频帧率
暂只支持30或60
(请勿输入单位如r。但必须使用以r为单位的纯数字。如30帧请输入30)
(如希望让系统自动设置，请输入0，如希望保留原视频帧率，请重新运行本命令，且不要选择重新编码)
请输入输出视频帧率
EOF
                , ['0', '30', '60',], 0);
            $arate = $this->choice(<<<EOF
请输入输出音频采样率
暂只支持44100或48000
(如希望让系统自动设置，请输入0，如希望保留原音频采样率，请重新运行本命令，且不要选择重新编码)
请输入输出音频采样率
EOF
                , ['0', '44100', '48000',], 0);
            $command = "ffmpeg -hide_banner -i '输入文件名' -ss 00:00:03.00 -c:v {$vcodec} ";
            if ($vbitrate != 0) {
                $command .= "-b:v {$vbitrate}k ";
            }
            if ($vrate != 0) {
                $command .= "-r {$vrate} ";
            }
            $command .= "-c:a {$acodec} ";
            if ($abitrate != 0) {
                $command .= "-b:a {$abitrate}k ";
            }
            if ($arate != 0) {
                $command .= "-ar {$arate} ";
            }
            $command .= "'输出文件名'";
        }
        $this->info('完整命令行例子如下：');
        $this->info($command);
        $confirm = $this->confirm('确定要生成此命令吗？', true);
        if ($confirm) {
            $commands = '';
            $this->info('正在生成命令...');
            $files = $this->getAllFiles($input);
            $this->info('共找到' . count($files) . '个文件');
            foreach ($files as $file) {
                $c = str_replace('输入文件名', $file, $command);
                $c = str_replace('输出文件名', str_replace($input, $output, $file), $c);
                $commands .= $c . PHP_EOL;
            }
            $this->info('命令生成完毕');
            $this->line($commands);
        }
        return self::SUCCESS;
    }

    public function schedule(Schedule $schedule)
    {
    }

    private function getEncoder(): string
    {
        $command = 'ffmpeg -hide_banner -encoders';
        $proc = proc_open(
            $command,
            [
                1 => ['pipe', 'w'],
                2 => ['pipe', 'w'],
            ],
            $pipes,
            __DIR__,
            null,
            [
                'suppress_errors' => true,
                'bypass_shell' => true,
                'blocking_pipes' => true,
                'create_process_group' => false,
                'create_new_console' => false,
            ]
        );
        $stdout = stream_get_contents($pipes[1]);
        $stderr = stream_get_contents($pipes[2]);
        fclose($pipes[1]);
        fclose($pipes[2]);
        $status = proc_get_status($proc);
        $exitCode = proc_close($proc);
        $codecs = explode("\n", $stdout);
        // only get all h264 codecs
        $h264Codecs = array_filter($codecs, function ($codec) {
            return str_contains($codec, 'h264');
        });
        // trim
        $h264Codecs = array_map(function ($codec) {
            return trim($codec);
        }, $h264Codecs);
        // get the codecs name at the 2nd column
        $h264Codecs = array_map(function ($codec) {
            return explode(' ', $codec)[1];
        }, $h264Codecs);
        // detect if support nvenc
        $nvenc = in_array('h264_nvenc', $h264Codecs);
        if ($nvenc) {
            return 'h264_nvenc';
        } else {
            return 'libx264';
        }
    }

    private function getAllFiles($dir): array
    {
        $files = [];
        $dirs = array_diff(scandir($dir), ['.', '..']);
        foreach ($dirs as $d) {
            if (!is_dir("{$dir}/{$d}")) {
                $files[] = "{$dir}/{$d}";
                $this->info("发现文件: {$dir}/{$d}");
            } else {
                $this->warn("本工具暂不支持子文件夹，将跳过子文件夹: {$dir}/{$d}");
            }
        }
        return $files;
    }
}
	<html>
	<head>
	<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
	<title>Media</title>
	<link rel="dns-prefetch" href="https://unpkg.com">
	<link rel="preconnect" href="https://unpkg.com">
	<link href="https://unpkg.com/bootstrap@3.4.1/dist/css/bootstrap.min.css" rel="stylesheet">
	</head>
	<body>
	<div>
	<div id="initer">
	请等待初始化...
	</div>
	<div id="inited" style="display: none;">
	<div class="input-group">
	<span class="input-group-addon">原视频所在文件夹(-i)</span>
	<input type="text" class="form-control" name="input" id="input">
	</div>
	<div class="input-group">
	<span class="input-group-addon">输出目标文件夹</span>
	<input type="text" class="form-control" name="output" id="output">
	</div>
	<div class="input-group">
	<span class="input-group-addon">视频开始时间(-ss)</span>
	<input type="text" class="form-control" name="ss" id="ss" placeholder="00:00:03.000" value="00:00:03.000">
	</div>
	<div class="alert alert-info" style="margin-bottom: 0;">
	(移除3秒请输入00:00:03.000)
	</div>
	<div class="input-group">
	<span class="input-group-addon">视频结束时间(-to)</span>
	<input type="text" class="form-control" name="to" id="to">
	</div>
	<div class="alert alert-info" style="margin-bottom: 0;">
	(不统一视频时长或称保留原视频时长请留空)
	</div>
	<div class="input-group">
	重新编码(-c:v libx264 -c:a aac)
	<input type="checkbox" name="recovert" id="recovert">
	</div>
	<div class="alert alert-warning" style="margin-bottom: 0;">
	(如希望保留原视频比特率、帧率、音频比特率、音频采样率，请不要选择重新编码)
	</div>
	<div id="params" style="display: none;">
	<div class="input-group">
	<span class="">尝试使用NVIDIA GPU加速(-c:v h264_nvenc)</span>
	<input type="checkbox" name="gpu" id="gpu">
	</div>
	<div class="alert alert-danger" id="noNVIDIA" style="display: none;">
	您的系统不支持NVIDIA GPU加速
	</div>
	<div class="input-group">
	<span class="input-group-addon">视频比特率(-b:v)</span>
	<input type="number" class="form-control" name="vbitrate" id="vbitrate" min="1000" max="10200" step="100">
	</div>
	<div class="alert alert-info" style="margin-bottom: 0;">
	(1440k请输入1440，2M请输入2048)
	<br />
	(常用比特率列表请参考：<a class="alert-link" href="https://support.google.com/youtube/answer/1722171?hl=zh-Hans">Google Youtube Support</a>)
	<br />
	(注意：设置更高比特率将保留更高画质，但如果原视频无法达到该比特率，则设置更高比特率没有任何意义，反而会增加文件大小)
	<br />
	(如希望让系统自动设置，请输入0)
	</div>
	<div class="input-group">
	<span class="input-group-addon">视频帧率(-r)</span>
	<select class="form-control" name="vrate" id="vrate">
	<option value="23.98">23.98</option>
	<option value="24">24</option>
	<option value="30" selected>30</option>
	<option value="60">60</option>
	</select>
	</div>
	<div class="input-group">
	<span class="input-group-addon">音频比特率(-b:a)</span>
	<select class="form-control" name="abitrate" id="abitrate">
	<option value="128" selected>128k</option>
	<option value="192">192k</option>
	<option value="256">256k</option>
	</select>
	</div>
	<div class="input-group">
	<span class="input-group-addon">音频采样率(-ar)</span>
	<select class="form-control" name="arate" id="arate">
	<option value="44100" selected>44100Hz</option>
	<option value="48000">48000Hz</option>
	</select>
	</div>
	</div>
	<a class="btn btn-primary btn-sm" href="javascript:refreshdemo();">刷新样例</a>
	<a class="btn btn-primary btn-sm" href="javascript:startgenerate();">开始生成</a>
	<div id="stdout1">
	命令样例：<br />
	<code id="stdout1_span">ffmpeg -i '输入文件名' -ss 00:00:03.000 -c:v copy -c:a copy '输出文件名'</code>
	</div>
	<textarea readonly id="stdout2" class="form-control" style="height: 200px;"></textarea>
	<a class="btn btn-primary btn-sm" id="copier" href="javascript:copyresult();">复制输出结果</a>
	</div>
	</div>
	<script src="https://unpkg.com/jquery@3.6.0/dist/jquery.min.js"></script>
	<script src="https://unpkg.com/bootstrap@3.4.1/dist/js/bootstrap.min.js"></script>
	<script>
	let win = nw.Window.get();
	win.height = 920;
	win.width = 1280;
	win.on('close', event => {
	win.close(true);
	App.quit();
	});
	$('#inited').show();
	$('#initer').hide();
	$('#recovert').on('change', () => {
	if ($('#recovert').is(':checked')) {
	$('#params').show();
	} else {
	$('#params').hide();
	}
	});
	</script>
	<script>
	let demo = $('#stdout1_span');
	demo.text("ffmpeg -hide_banner -i \"输入文件名\" -ss 00:00:03.000 -c:v copy -c:a copy \"输出文件名\"");
	</script>
	<script>
	checkNVIDIA = () => {
	let noNVIDIA = $('#noNVIDIA');
	const cp = require('child_process');
	let proc = cp.spawnSync('ffmpeg', [
	'-hide_banner',
	'-encoders',
	], {
	maxBuffer: 4096 * 4096,
	shell: false,
	windowsHide: true,
	});
	if (proc.stdout.toString().includes('h264_nvenc')) {
	noNVIDIA.hide();
	return true;
	} else {
	noNVIDIA.show();
	return false;
	}
	}
	refreshdemo = () => {
	let ss = $('#ss').val();
	let to = $('#to').val();
	let recovert = $('#recovert').is(':checked');
	let useNVIDIA = $('#gpu').is(':checked');
	let vbitrate = $('#vbitrate').val();
	let vrate = $('#vrate').val();
	let abitrate = $('#abitrate').val();
	let arate = $('#arate').val();
	let cmd = `ffmpeg -hide_banner -i "输入文件名"`;
	ss != '' && (cmd += ` -ss ${ss}`);
	to != '' && (cmd += ` -to ${to}`);
	if (recovert) {
	if (useNVIDIA && checkNVIDIA()) {
	cmd += ` -c:v h264_nvenc`;
	} else {
	cmd += ` -c:v libx264`;
	}
	if (vbitrate == '') {
	vbitrate = 0;
	}
	if (vbitrate != 0) {
	cmd += ` -b:v ${vbitrate}k`;
	}
	cmd += ` -r ${vrate} -c:a aac -b:a ${abitrate}k -ar ${arate}`;
	} else {
	cmd += ` -c:v copy -c:a copy`;
	}
	cmd += ` "输出文件名"`;
	demo.text(cmd);
	}
	startgenerate = () => {
	refreshdemo();
	const fs = require('fs');
	let input = $('#input').val();
	let output = $('#output').val();
	if (input == '') {
	alert('请输入原视频所在文件夹');
	return;
	}
	if (output == '') {
	alert('请输入输出目标文件夹');
	return;
	}
	let cmd = demo.text();
	input = input.replace(/\\/g, '/');
	output = output.replace(/\\/g, '/');
	// scan input dir
	let files = [];
	let dir = fs.readdirSync(input);
	for (let i = 0; i < dir.length; i++) {
	let file = dir[i];
	// if not dir, push to files
	if (!fs.statSync(`${input}/${file}`).isDirectory()) {
	console.log(`${input}/${file}`);
	files.push(file);
	}
	}
	// generate cmd
	let cmds = [];
	for (let i = 0; i < files.length; i++) {
	let file = files[i];
	console.log(file);
	temp = cmd.replace(/输入文件名/g, `${input}/${file}`);
	temp = temp.replace(/输出文件名/g, `${output}/${file}`);
	cmds.push(temp);
	}
	// out put cmd to textarea
	let stdout = $('#stdout2');
	stdout.text('');
	for (let i = 0; i < cmds.length; i++) {
	stdout.text(stdout.text() + cmds[i] + '\n');
	}
	}
	copyresult = () => {
	let stdout = $('#stdout2');
	let clipboard = nw.Clipboard.get();
	clipboard.set(stdout.text(), 'text');
	let copier = $('#copier');
	if (clipboard.get('text') == stdout.text()) {
	copier.text('复制成功');
	setTimeout(() => {
	copier.text('复制输出结果');
	}, 1000);
	}
	}
	</script>
	</body>
	</html>
	<?php

	namespace App\Commands;

	use Illuminate\Console\Scheduling\Schedule;
	use LaravelZero\Framework\Commands\Command;

	class BuildCommand extends Command
	{
	protected $signature = 'build';
	protected $description = 'Build Media Commands to remove 3 seconds at the video start';

	public function handle(): int
	{
	$input = $this->anticipate('请输入现有媒体文件所在文件夹', []);
	if (!is_dir($input)) {
	$this->error('输入文件夹不存在');
	return self::INVALID;
	}
	$output = $this->anticipate('请输入媒体文件输出目标文件夹', []);
	if (!is_dir($output)) {
	$this->error('输出文件夹不存在');
	return self::INVALID;
	}
	$this->info('本工具暂只支持修改输出文件编码，输入文件的编码将使用默认解码器进行CPU解码');
	$recode = $this->ask('是否重新编码为h264+aac格式？(请输入y或n)', 'y');
	$recode = $recode === 'y';
	if ($recode) {
	$acodec = 'aac';
	$useNvidia = $this->ask('是否尝试使用NVIDIA加速？(请输入y或n)', 'y');
	$useNvidia = $useNvidia === 'y';
	if ($useNvidia) {
	$encoder = $this->getEncoder();
	} else {
	$encoder = 'libx264';
	}
	if ($useNvidia && $encoder === 'libx264') {
	$this->warn('尝试使用NVIDIA加速失败，你的计算机没有安装NVIDIA显卡。');
	$this->info('如果你的计算机已经安装了NVIDIA显卡，请点此联系作者：https://t.me/jyxjjj');
	} else {
	$this->info('成功检测到NVIDIA显卡加速支持');
	}
	$this->info("将使用{$encoder}编码器");
	$vcodec = $encoder;
	} else {
	$vcodec = 'copy';
	$acodec = 'copy';
	}
	if ($vcodec == 'copy') {
	$command = "ffmpeg -hide_banner -i '输入文件名' -ss 00:00:03.00 -c:v copy -c:a copy '输出文件名'";
	} else {
	$vbitrate = $this->anticipate(<<<EOF
	请输入输出视频比特率
	(请勿输入单位如K、M。但必须使用以K为单位的纯数字。如1440k请输入1440，2M请输入2048)
	(常用比特率列表请参考：https://support.google.com/youtube/answer/1722171?hl=zh-Hans)
	(注意：设置更高比特率将保留更高画质，但如果原视频无法达到该比特率，则设置更高比特率没有任何意义)
	(如希望让系统自动设置，请输入0，如希望保留原视频比特率，请重新运行本命令，且不要选择重新编码)
	请输入输出视频比特率
	EOF
	, []);
	$abitrate = $this->choice(<<<EOF
	请输入输出音频比特率
	暂只支持128或192或256
	(请勿输入单位如K。但必须使用以K为单位的纯数字。如128k请输入128)
	(如希望让系统自动设置，请输入0，如希望保留原音频比特率，请重新运行本命令，且不要选择重新编码)
	请输入输出音频比特率
	EOF
	, ['0', '128', '192', '256',], 0);
	$vrate = $this->choice(<<<EOF
	请输入输出视频帧率
	暂只支持30或60
	(请勿输入单位如r。但必须使用以r为单位的纯数字。如30帧请输入30)
	(如希望让系统自动设置，请输入0，如希望保留原视频帧率，请重新运行本命令，且不要选择重新编码)
	请输入输出视频帧率
	EOF
	, ['0', '30', '60',], 0);
	$arate = $this->choice(<<<EOF
	请输入输出音频采样率
	暂只支持44100或48000
	(如希望让系统自动设置，请输入0，如希望保留原音频采样率，请重新运行本命令，且不要选择重新编码)
	请输入输出音频采样率
	EOF
	, ['0', '44100', '48000',], 0);
	$command = "ffmpeg -hide_banner -i '输入文件名' -ss 00:00:03.00 -c:v {$vcodec} ";
	if ($vbitrate != 0) {
	$command .= "-b:v {$vbitrate}k ";
	}
	if ($vrate != 0) {
	$command .= "-r {$vrate} ";
	}
	$command .= "-c:a {$acodec} ";
	if ($abitrate != 0) {
	$command .= "-b:a {$abitrate}k ";
	}
	if ($arate != 0) {
	$command .= "-ar {$arate} ";
	}
	$command .= "'输出文件名'";
	}
	$this->info('完整命令行例子如下：');
	$this->info($command);
	$confirm = $this->confirm('确定要生成此命令吗？', true);
	if ($confirm) {
	$commands = '';
	$this->info('正在生成命令...');
	$files = $this->getAllFiles($input);
	$this->info('共找到' . count($files) . '个文件');
	foreach ($files as $file) {
	$c = str_replace('输入文件名', $file, $command);
	$c = str_replace('输出文件名', str_replace($input, $output, $file), $c);
	$commands .= $c . PHP_EOL;
	}
	$this->info('命令生成完毕');
	$this->line($commands);
	}
	return self::SUCCESS;
	}

	public function schedule(Schedule $schedule)
	{
	}

	private function getEncoder(): string
	{
	$command = 'ffmpeg -hide_banner -encoders';
	$proc = proc_open(
	$command,
	[
	1 => ['pipe', 'w'],
	2 => ['pipe', 'w'],
	],
	$pipes,
	__DIR__,
	null,
	[
	'suppress_errors' => true,
	'bypass_shell' => true,
	'blocking_pipes' => true,
	'create_process_group' => false,
	'create_new_console' => false,
	]
	);
	$stdout = stream_get_contents($pipes[1]);
	$stderr = stream_get_contents($pipes[2]);
	fclose($pipes[1]);
	fclose($pipes[2]);
	$status = proc_get_status($proc);
	$exitCode = proc_close($proc);
	$codecs = explode("\n", $stdout);
	// only get all h264 codecs
	$h264Codecs = array_filter($codecs, function ($codec) {
	return str_contains($codec, 'h264');
	});
	// trim
	$h264Codecs = array_map(function ($codec) {
	return trim($codec);
	}, $h264Codecs);
	// get the codecs name at the 2nd column
	$h264Codecs = array_map(function ($codec) {
	return explode(' ', $codec)[1];
	}, $h264Codecs);
	// detect if support nvenc
	$nvenc = in_array('h264_nvenc', $h264Codecs);
	if ($nvenc) {
	return 'h264_nvenc';
	} else {
	return 'libx264';
	}
	}

	private function getAllFiles($dir): array
	{
	$files = [];
	$dirs = array_diff(scandir($dir), ['.', '..']);
	foreach ($dirs as $d) {
	if (!is_dir("{$dir}/{$d}")) {
	$files[] = "{$dir}/{$d}";
	$this->info("发现文件: {$dir}/{$d}");
	} else {
	$this->warn("本工具暂不支持子文件夹，将跳过子文件夹: {$dir}/{$d}");
	}
	}
	return $files;
	}
	}