<?php
// 安装：composer require vits-php/tts
use VITS\TTSGenerator;class DigitalHuman {private $tts;public function __construct() {$this->tts = new TTSGenerator(['model_path' => '/models/nene_jp.pth', // 日语主播模型'config_path' => '/models/nene_jp.json']);}public function speak(string $text, string $outputFile): void {// 情感参数（0:中性, 1:高兴, -1:悲伤）$emotion = $this->detectEmotion($text);// 生成语音$audio = $this->tts->generate($text, ['speaker_id' => 0,'speed' => 1.1,'emotion' => $emotion,'pitch' => $emotion > 0 ? 5 : 0]);file_put_contents($outputFile, $audio);}private function detectEmotion(string $text): int {// 情感分析简化版$positive = ['优惠', '惊喜', '限时', '恭喜'];$negative = ['抱歉', '退货', '故障', '赔偿'];foreach ($positive as $word) {if (strpos($text, $word) !== false) return 1;}foreach ($negative as $word) {if (strpos($text, $word) !== false) return -1;}return 0;}
}// 使用示例（电商直播场景）
$human = new DigitalHuman();
$human->speak("今日限时优惠！iPhone15直降500元！", '/live/audio/offer.mp3');

<?php
// 安装：composer require arkit-php/blendshapes
use ArkitPHP\BlendShapeController;class ExpressionDriver {private $controller;private $currentExpression = 'neutral';public function __construct() {$this->controller = new BlendShapeController();$this->controller->loadModel('/models/face_rig.glb');}public function updateExpression(string $text): void {$targetExpression = $this->mapTextToExpression($text);// 平滑过渡（避免表情突变）$this->controller->morphTo($this->currentExpression, $targetExpression,0.3  // 过渡时间300ms);$this->currentExpression = $targetExpression;}private function mapTextToExpression(string $text): string {$keywords = ['happy' => ['优惠', '恭喜', '中奖', '感谢'],'angry' => ['投诉', '欺诈', '假货', '赔偿'],'surprised' => ['惊爆价', '仅限今天', '史无前例']];foreach ($keywords as $exp => $words) {foreach ($words as $word) {if (strpos($text, $word) !== false) return $exp;}}return 'neutral';}public function getCurrentFaceData(): array {return $this->controller->getBlendShapeWeights();}
}// 使用示例（实时更新表情）
$driver = new ExpressionDriver();
$driver->updateExpression("天啊！这款面膜买一送一！");
$faceData = $driver->getCurrentFaceData();
// 输出：['mouthSmile'=>0.8, 'eyeWide'=>0.6, ...]

<?php
// 安装：composer require php-ffmpeg/php-ffmpeg
use FFMpeg\FFMpeg;
use FFMpeg\Format\Video\X264;class LiveStreamer {private $ffmpeg;public function __construct() {$this->ffmpeg = FFMpeg::create(['ffmpeg.binaries'  => '/usr/bin/ffmpeg','ffprobe.binaries' => '/usr/bin/ffprobe']);}public function startLive(array $sources, string $rtmpUrl): void {// 创建合成视频流$video = $this->ffmpeg->openAdvanced($sources);// 设置输出格式$format = new X264('aac');$format->setPasses(1);// 配置推流参数$video->filters()->custom('[0:v]scale=1280:720[v]') // 缩放视频->custom('[1:a]volume=1.5[a]');   // 增强音频$video->map(['[v]', '[a]'], $format)->save($rtmpUrl, true); // 推流到RTMP服务器// 保持推流进程while (true) {sleep(1);if (file_exists('/stop_live.flag')) break;}}
}// 使用示例（抖音直播）
$streamer = new LiveStreamer();
$streamer->startLive(['/live/video/human.mp4',  // 数字人视频'/live/audio/current.mp3'  // 实时语音],'rtmp://push.douyin.com/live/your_stream_key'
);

// GPU任务调度器
class GPUPool {private $servers = ['gpu01' => '192.168.1.101:5000','gpu02' => '192.168.1.102:5000'];public function dispatchTask(string $type, $data): string {// 按类型选择服务器$server = ($type === 'render') ? 'gpu02' : 'gpu01';// 调用GRPC服务$client = new GrpcClient($this->servers[$server]);return $client->process($data);}
}

# Nginx流量控制
map $http_user_agent $limit_rate {"~*iPhone"     "1500k"; # 移动端限流default        "5000k";
}server {location /live {limit_rate $limit_rate;proxy_pass http://stream_backend;}
}

// Redis集群会话同步
$redis->cluster(['192.168.1.10:7000','192.168.1.11:7000'
]);$sessionId = 'user_12345';
$redis->setex($sessionId, 3600, json_encode($dialogState));

class LipSyncer {public function align(string $audioFile, array $visemes): array {// 1. 提取音频音素$phonemes = $this->extractPhonemes($audioFile);// 2. 生成时间轴$timeline = [];$start = 0.0;foreach ($phonemes as $ph) {$duration = $ph['end'] - $ph['start'];$timeline[] = ['start' => $start,'end' => $start + $duration,'viseme' => $this->mapPhonemeToViseme($ph['type'])];$start += $duration;}// 3. 平滑过渡处理return $this->smoothTransitions($timeline);}private function mapPhonemeToViseme(string $phoneme): string {$mapping = ['a' => 'viseme_aa', 'i' => 'viseme_I','u' => 'viseme_U', 'p' => 'viseme_P'// 完整映射需补充...];return $mapping[$phoneme] ?? 'viseme_sil';}
}

// 基于Swoole的弹性调度
$server = new Swoole\Http\Server('0.0.0.0', 9501);$server->on('request', function ($req, $res) {$gpu = GPUPool::getAvailableNode(); // 获取空闲GPU// 设置超时保护Swoole\Timer::after(5000, function() {if (!isset($result)) {$res->status(503);$res->end('System busy');}});// 异步处理go(function() use ($gpu, $req) {$result = $gpu->render($req->post['data']);$res->end($result);});
});

class UniversalStreamer {private $platforms = ['douyin' => ['rtmp' => 'rtmp://push.douyin.com/live/','resolution' => '720p'],'taobao' => ['rtmp' => 'rtmp://push.taobao.com/live/','resolution' => '540p']];public function streamTo(string $platform, string $source): void {$config = $this->platforms[$platform];$ffmpeg = FFMpeg::create();$video = $ffmpeg->open($source);// 动态调整分辨率$video->filters()->resize(new FFMpeg\Coordinate\Dimension($config['resolution'] === '720p' ? 1280 : 960,$config['resolution'] === '720p' ? 720 : 540));$format = new X264();$video->save($format, $config['rtmp'] . $this->getStreamKey());}
}