AdminMakeImmerse.php
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<?php
namespace App\Jobs;
use App\Models\Immerse;
use App\Models\VideoTemp;
use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Foundation\Bus\Dispatchable;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Queue\SerializesModels;
use App\Models\AdminMakeVideo;
use Illuminate\Support\Carbon;
use Illuminate\Support\Facades\Log;
use Illuminate\Support\Facades\Storage;
class AdminMakeImmerse implements ShouldQueue
{
use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;
public $adminMakeVideo;
protected $ffmpeg;
protected $ffprobe;
protected $media_info;
protected $output_width;
protected $output_height;
/**
* Create a new job instance.
* @param AdminMakeVideo $adminMakeVideo
* @return void
*/
public function __construct(AdminMakeVideo $adminMakeVideo)
{
$this->adminMakeVideo = $adminMakeVideo;
$this->ffmpeg = env('FFMPEG_CMD');
$this->ffprobe = env('FFPROBE_CMD');
$this->output_width = 720;
$this->output_height = 1280;
}
/**
* Execute the job.
*
* @return void
*/
public function handle()
{
$file = $this->getAbsolutePath($this->adminMakeVideo->video_url);
// 分析视频
$this->media_info = $this->mediaInfo($file);
// 准备素材
$watermark = $this->getAbsolutePath('images/logo.png');
// 组装文字参数
$drawtext = $this->getTextContentString();
// 判断双轨 没有则制作空轨
$is_bgm = $this->adminMakeVideo->temp->bg_music == 1; //是否手动上传背景音
$bgm = $this->getAbsolutePath($this->adminMakeVideo->temp->bgm_url);
if ($this->media_info['format']['nb_streams'] >= 2) { /** 音频视频轨都有 */
if ($is_bgm) {
// 有背景音 融合
$audio = $this->getAbsolutePath($this->getTempPath('.mp3','audio'));
$cmd = $this->ffmpeg .
' -y -i ' . escapeshellarg($file) .
' -y -i ' . escapeshellarg($bgm) .
' -filter_complex amix=inputs=2:duration=first:dropout_transition=2 ' .
'-ar 48000 -ab 64k ' . escapeshellarg($audio);
if (!$this->execCmd($cmd)) return;
$audio_input = ' -i ' . escapeshellarg($audio);
$audio_filter = '2:a';
} else {
// 没有背景音
$audio_input = '';
$audio_filter = '0:a';
}
} elseif ($this->media_info['format']['nb_streams'] == 1) { /** 只有视频轨 */
// 生成一段无声音频
$audio = $this->getAbsolutePath($this->getTempPath('.mp3','audio'));
$cmd = $this->ffmpeg .
' -y -f lavfi -i aevalsrc=0:duration=' . escapeshellarg($this->media_info['format']['duration']) .
' -ar 48000 -ab 64k ' . escapeshellarg($audio);
if (!$this->execCmd($cmd)) return;
if ($is_bgm) {
// 有背景音 融合
$audio_empty = $audio;
$audio = $this->getAbsolutePath($this->getTempPath('.mp3','audio'));
$cmd = $this->ffmpeg .
' -y -i ' . escapeshellarg($audio_empty) .
' -y -i ' . escapeshellarg($bgm) .
' -filter_complex amix=inputs=2:duration=first:dropout_transition=2 ' .
'-ar 48000 -ab 64k ' . escapeshellarg($audio);
if (!$this->execCmd($cmd)) return;
}
$audio_input = ' -i ' . escapeshellarg($audio);
$audio_filter = '2:a';
} else {
/** 音频视频轨都没有 */
Log::channel('daily')->error('视频没有video track, url:' . $file);
return;
}
// 制作封面图
$thumbnail = $this->getTempPath('.jpg','thumbnail');
if ($this->adminMakeVideo->thumbnail == 2){
// 截取中间帧作为视频封面
$frame = ceil($this->media_info['streams'][0]['nb_frames'] / 2);
$cmd = $this->ffmpeg . ' -y ' .
' -i ' . escapeshellarg($file) .
' -filter_complex "[0:v]select=\'eq(n,' . $frame . ')\'[img]" ' .
' -map [img]'.
' -frames:v 1 -s ' . $this->output_width . 'x' . $this->output_height . ' -preset superfast ' .
escapeshellarg($this->getAbsolutePath($thumbnail));
if (!$this->execCmd($cmd)) return ;
}else{
// 手动上传封面
$origin_thumbnail = $this->getAbsolutePath($this->adminMakeVideo->thumbnail_url);
// 将封面分辨率改为指定分辨率
$cmd = $this->ffmpeg . ' -y ' .
' -i ' . escapeshellarg($origin_thumbnail) .
'-s ' . $this->output_width . 'x' . $this->output_height . ' -preset superfast ' .
escapeshellarg($this->getAbsolutePath($thumbnail));
if (!$this->execCmd($cmd)) return ;
}
// 合成视频
$output = $this->getTempPath('.mp4','video');
$cmd = $this->ffmpeg . ' -y '.
' -i ' . escapeshellarg($file).
' -i ' . escapeshellarg($watermark).
$audio_input .
' -filter_complex "[0:v]scale=' . $this->output_width . ':' . $this->output_height . ',' . $drawtext .
' [text];[text]'.
' [1:v]overlay=20:20[v]" ' .
' -map [v] -map '. $audio_filter .
' -c:v libx264 -bt 256k -r 25' .
' -ar 44100 -ac 2 -qmin 30 -qmax 60 -profile:v baseline -preset fast ' .
escapeshellarg($this->getAbsolutePath($output));
if (!$this->execCmd($cmd)) return ;
// 分析视频 入库
$video_info = $this->mediaInfo($this->getAbsolutePath($output));
Immerse::query()->create([
'user_id' => 1,
'title' => '',
'weather' => $this->adminMakeVideo->weather,
'huangli' => $this->adminMakeVideo->huangli,
'content' => $this->adminMakeVideo->feel,
'location' => $this->adminMakeVideo->location,
'longitude' => $this->adminMakeVideo->longitude,
'latitude' => $this->adminMakeVideo->latitude,
'url' => $output,
'type' => $this->adminMakeVideo->type == 1 ? 2 : 1,
'upload_file' => '',
'duration' => $video_info['format']['duration'],
'size' => $video_info['format']['size'],
'origin_video_url' => $this->adminMakeVideo->video_url,
'origin_image_url' => '',
'poem_id' => $this->adminMakeVideo->poem_id,
'temp_id' => $this->adminMakeVideo->temp_id,
'thumbnail' => $thumbnail,
'state' => 1,
'bgm' => $is_bgm ? $bgm : '',
]);
}
public function getAbsolutePath($path)
{
if ($path == '') return '';
return Storage::disk('public')->path($path);
}
public function mediaInfo($file)
{
$cmd = $this->ffprobe . ' -v quiet -print_format json -show_format -show_streams ' . escapeshellarg($file);
$output = $this->execCmd($cmd);
$data = json_decode($output, true);
if (json_last_error() === JSON_ERROR_UTF8) {
$output = mb_convert_encoding($output, "UTF-8");
$data = json_decode($output, true);
}
$this->media_info = $data;
return $data;
}
public function execCmd($cmd)
{
echo $cmd . "\n". "\n";
return shell_exec("{$cmd} 2>&1");
}
public function getTextContentString()
{
$components = $this->adminMakeVideo->temp->components;
$drawtext = '';
// 底部加入文字水印
$text_file = $this->getAbsolutePath($this->getTempPath('.txt','text'));
file_put_contents($text_file, 'Parlando.ink');
$font_file = $this->getAbsolutePath("files/d7300fd8be7ff27fb0a11d1afe717374.otf");
$font_size = $this->calcFontSize(22);
$drawtext .= 'drawtext="'.
'fontfile=' . escapeshellarg($font_file) . ':' .
'textfile=' . escapeshellarg($text_file) . ':' .
'fontsize=' . $font_size . ':' .
'fontcolor=white@0.8:' .
'x=' . escapeshellarg('w-text_w') . ':' .
'y=' . escapeshellarg('h-text_h-1') . ':' .
'", ';
foreach ($components as $component) {
$text_color = $component->text_color ?? 'white';
$text_bg_color = $component->text_bg_color ?? '0xd0cdcc';
$opacity = $component->opacity ? $component->opacity / 100 : 0.5;
$font_file = $this->getAbsolutePath($component->font_file);
$text_bg_box = $component->text_bg_box ?? 0;
$font_size = $this->calcFontSize($component->font_size);
// 文字淡入淡出模式
if ($component->draw == 'fade'){
$contents = []; //
switch ($component->name){
case 'one_poem':
$contents[] = [
"text" => $this->adminMakeVideo->poem2->title . "\n" . $this->adminMakeVideo->poem2->author,
"tag" => "title"
];
foreach ($this->adminMakeVideo->poem2->verses as $item) {
if ($item->content){
if ($item->source){
$contents[] = [
"text" => $this->autoEnter($item->content, $font_size, $this->output_width) . "\n" . $item->source,
"tag" => "source"
];
}else{
$contents[] = [
"text" => $this->autoEnter($item->content, $font_size, $this->output_width),
"tag" => "content"
];
}
}
if ($item->annotate){
$contents[] = [
"text" => $this->autoEnter($item->annotate, $font_size, $this->output_width),
"tag" => "annotate"
];
}
if ($item->spelling){
$contents[] = [
"text" => $this->autoEnter($item->spelling, $font_size, $this->output_width),
"tag" => "spelling"
];
}
if ($item->en){
$contents[] = [
"text" => $this->autoEnter($item->en, $font_size, $this->output_width),
"tag" => "en"
];
}
}
break;
case 'weather':
$contents[] = [
"text" => $this->adminMakeVideo->weather,
"tag" => "weather"
];
break;
case 'date':
$contents[] = [
"text" => Carbon::now()->format('Y年m月d日H时'),
"tag" => "date"
];
break;
case 'feel':
$contents[] = [
"text" => $this->adminMakeVideo->feel ?: '读此一言，仿佛身临其境。',
"tag" => "feel"
];
break;
}
$FID = $FOD = floatval($component->fade_time / 1000);
$round = round($this->media_info['format']['duration'] / count($contents),1);
if ($round < 1) $round = 1;
$sub_text = '';
foreach ($contents as $key => $content){
$DS = $key * $round;
$DE = $DS + $round;
if ($content['tag'] == 'title'){
$arr = explode("\n", $content['text']);
$title = $arr[0] ?? " ";
$author = $arr[1] ?? " ";
// 标题
$text_file = $this->getAbsolutePath($this->getTempPath('.txt','text'));
file_put_contents($text_file, $title);
$sub_text .= 'drawtext="'.
'fontfile=' . escapeshellarg($font_file) . ':' .
'textfile=' . escapeshellarg($text_file) . ':' .
'fontsize=' . $font_size . ':' .
'fontcolor_expr=' . escapeshellarg($text_color . '%{eif\\\\: clip(255*(1*between(t\\, ' . $DS . ' + ' . $FID . '\\, ' . $DE . ' - ' . $FOD . ') + ((t - ' . $DS . ')/' . $FID . ')*between(t\\, ' . $DS . '\\, ' . $DS . ' + ' . $FID . ') + (-(t - ' . $DE . ')/' . $FOD . ')*between(t\\, ' . $DE . ' - ' . $FOD . '\\, ' . $DE . '))\\, 0\\, 255) \\\\: x\\\\: 2 }') . ':' .
'x=' . escapeshellarg(VideoTemp::POSITION_FFMPEG['midMiddle'][0]) . ':' .
'y=' . escapeshellarg(VideoTemp::POSITION_FFMPEG['midMiddle'][1]) . ':' .
'", ';
// 作者
$text_file = $this->getAbsolutePath($this->getTempPath('.txt','text'));
file_put_contents($text_file, $author);
$sub_text .= 'drawtext="'.
'fontfile=' . escapeshellarg($font_file) . ':' .
'textfile=' . escapeshellarg($text_file) . ':' .
'fontsize=' . $font_size / 2 . ':' .
'fontcolor_expr=' . escapeshellarg($text_color . '%{eif\\\\: clip(255*(1*between(t\\, ' . $DS . ' + ' . $FID . '\\, ' . $DE . ' - ' . $FOD . ') + ((t - ' . $DS . ')/' . $FID . ')*between(t\\, ' . $DS . '\\, ' . $DS . ' + ' . $FID . ') + (-(t - ' . $DE . ')/' . $FOD . ')*between(t\\, ' . $DE . ' - ' . $FOD . '\\, ' . $DE . '))\\, 0\\, 255) \\\\: x\\\\: 2 }') . ':' .
'x=' . escapeshellarg(VideoTemp::POSITION_FFMPEG['midMiddle'][0]) . ':' .
'y=' . escapeshellarg(VideoTemp::POSITION_FFMPEG['midMiddle'][1] . '+' . $font_size) . ':' .
'", ';
}elseif($content['tag'] == 'source'){
$arr = explode("\n", $content['text']);
$verse = $arr[0] ?? " ";
$source = $arr[1] ?? " ";
//诗句
$text_file = $this->getAbsolutePath($this->getTempPath('.txt','text'));
file_put_contents($text_file, $verse);
$sub_text .= 'drawtext="'.
'fontfile=' . escapeshellarg($font_file) . ':' .
'textfile=' . escapeshellarg($text_file) . ':' .
'fontsize=' . $font_size . ':' .
'fontcolor_expr=' . escapeshellarg($text_color . '%{eif\\\\: clip(255*(1*between(t\\, ' . $DS . ' + ' . $FID . '\\, ' . $DE . ' - ' . $FOD . ') + ((t - ' . $DS . ')/' . $FID . ')*between(t\\, ' . $DS . '\\, ' . $DS . ' + ' . $FID . ') + (-(t - ' . $DE . ')/' . $FOD . ')*between(t\\, ' . $DE . ' - ' . $FOD . '\\, ' . $DE . '))\\, 0\\, 255) \\\\: x\\\\: 2 }') . ':' .
'x=' . escapeshellarg(VideoTemp::POSITION_FFMPEG[$component->position][0]) . ':' .
'y=' . escapeshellarg(VideoTemp::POSITION_FFMPEG[$component->position][1]) . ':' .
'", ';
// 出处
$text_file = $this->getAbsolutePath($this->getTempPath('.txt','text'));
file_put_contents($text_file, $source);
$sub_text .= 'drawtext="'.
'fontfile=' . escapeshellarg($font_file) . ':' .
'textfile=' . escapeshellarg($text_file) . ':' .
'fontsize=' . $font_size / 2 . ':' .
'fontcolor_expr=' . escapeshellarg($text_color . '%{eif\\\\: clip(255*(1*between(t\\, ' . $DS . ' + ' . $FID . '\\, ' . $DE . ' - ' . $FOD . ') + ((t - ' . $DS . ')/' . $FID . ')*between(t\\, ' . $DS . '\\, ' . $DS . ' + ' . $FID . ') + (-(t - ' . $DE . ')/' . $FOD . ')*between(t\\, ' . $DE . ' - ' . $FOD . '\\, ' . $DE . '))\\, 0\\, 255) \\\\: x\\\\: 2 }') . ':' .
'x=' . escapeshellarg(VideoTemp::POSITION_FFMPEG[$component->position][0]) . ':' .
'y=' . escapeshellarg(VideoTemp::POSITION_FFMPEG[$component->position][1] . '+' . $font_size) . ':' .
'", ';
}else{
$text_file = $this->getAbsolutePath($this->getTempPath('.txt','text'));
file_put_contents($text_file, $content['text']);
$sub_text .= 'drawtext="'.
'fontfile=' . escapeshellarg($font_file) . ':' .
'textfile=' . escapeshellarg($text_file) . ':' .
'fontsize=' . $font_size . ':' .
'fontcolor_expr=' . escapeshellarg($text_color . '%{eif\\\\: clip(255*(1*between(t\\, ' . $DS . ' + ' . $FID . '\\, ' . $DE . ' - ' . $FOD . ') + ((t - ' . $DS . ')/' . $FID . ')*between(t\\, ' . $DS . '\\, ' . $DS . ' + ' . $FID . ') + (-(t - ' . $DE . ')/' . $FOD . ')*between(t\\, ' . $DE . ' - ' . $FOD . '\\, ' . $DE . '))\\, 0\\, 255) \\\\: x\\\\: 2 }') . ':' .
'x=' . escapeshellarg(VideoTemp::POSITION_FFMPEG[$component->position][0]) . ':' .
'y=' . escapeshellarg(VideoTemp::POSITION_FFMPEG[$component->position][1]) . ':' .
'", ';
}
}
$drawtext .= $sub_text;
}
// 文字固定模式
if ($component->draw == 'fix'){
$contents = []; //
switch ($component->name){
case 'one_poem':
$stanzas = '';
$default = $this->adminMakeVideo->poem2->title . "\n" . $this->adminMakeVideo->poem2->author;
$stanzas .= $this->autoCenter($default,$font_size, $this->output_width) .PHP_EOL.PHP_EOL;
foreach ($this->adminMakeVideo->poem2->verses as $item) {
if ($item->content != '') $stanzas .= $this->autoEnter($item->content, $font_size, $this->output_width) . "\n";
}
$contents[] = $stanzas;
break;
case 'weather':
$contents[] = $this->adminMakeVideo->weather;
break;
case 'date':
$contents[] = Carbon::now()->format('Y年m月d日H时');
break;
case 'feel':
$contents[] = $this->adminMakeVideo->feel ?: '读此一言，仿佛身临其境。';
break;
}
$sub_text = '';
foreach ($contents as $key => $content){
$text_file = $this->getAbsolutePath($this->getTempPath('.txt','text'));
file_put_contents($text_file, $content);
$sub_text .= 'drawtext="'.
'fontfile=' . escapeshellarg($font_file) . ':' .
'textfile=' . escapeshellarg($text_file) . ':' .
'fontsize=' . $font_size . ':' .
'fontcolor=' . $text_color . '@' . $opacity . ':' .
'x=' . escapeshellarg(VideoTemp::POSITION_FFMPEG[$component->position][0]) . ':' .
'y=' . escapeshellarg(VideoTemp::POSITION_FFMPEG[$component->position][1]) . ':' .
'box=1:boxborderw='. $text_bg_box . ':' .
'boxcolor=' . $text_bg_color . '@' . $opacity . '", ';
}
$drawtext .= $sub_text;
}
}
return rtrim($drawtext,', ');
}
public function autoEnter($string, $font_width, $video_width)
{
$video_width = $video_width - 1 * $font_width; // 两侧留出空隙
$row_count = floor($video_width / $font_width);
echo $string . "#" . $row_count . PHP_EOL;
$str_len = mb_strlen($string);
if ($str_len > $row_count) {
$tmp = array_chunk(
preg_split("//u", $string, -1, PREG_SPLIT_NO_EMPTY), $row_count);
$new_str = "";
foreach ($tmp as $t) {
$new_str .= join("", $t) . "\n";
}
return $new_str;
}else{
return $string;
}
}
public function autoCenter($string, $font_width, $video_width)
{
$video_width = $video_width - 1 * $font_width; // 两侧留出空隙
$row_count = floor($video_width / $font_width);
$arr = explode("\n", $string);
$title = $arr[0] ?? " ";
$author = $arr[1];
$title_len = mb_strlen($title);
if ($title_len > $row_count) {
$tmp = array_chunk(
preg_split("//u", $string, -1, PREG_SPLIT_NO_EMPTY), $row_count);
$tmp[count($tmp - 1)] = $this->autoStrPad(end($tmp), $row_count * 2, ' ', STR_PAD_BOTH);
$new_title = '';
foreach ($tmp as $t) {
$new_title .= join("", $t) . "\n";
}
} else {
$new_title = $this->autoStrPad($title, $row_count * 2, ' ', STR_PAD_BOTH);
}
$new_author = $this->autoStrPad($author, $row_count * 2, ' ', STR_PAD_BOTH);
return $new_title . PHP_EOL . $new_author;
}
public function autoStrPad($string, $length, $pad_string = "", $pad_type = STR_PAD_BOTH)
{
$mb_disparity_count = (strlen($string) - mb_strlen($string)) / 2;
return str_pad($string,$length+$mb_disparity_count,$pad_string,$pad_type);
}
public function calcFontSize($width)
{
return floor($this->output_width / 360 * $width);
}
/**
* 获取输出临时文件名
* @param string $ext
* @param string $dir
* @return string
*/
public function getTempPath($ext = '.mp4',$dir = 'video')
{
$filename = "/output_" . time() . rand(0, 10000);
$hash_hex = md5($filename);
// 16进制表示的字符串一共32字节，表示16个二进制字节。
// 前16个字符用来第一级求摸，后16个用做第二级
$hash_hex_l1 = substr($hash_hex, 0, 8);
$hash_hex_l2 = substr($hash_hex, 8, 8);
$dir_l1 = hexdec($hash_hex_l1) % 256;
$dir_l2 = hexdec($hash_hex_l2) % 512;
$dir = $dir . '/' . $dir_l1 . '/' . $dir_l2;
if( !Storage::disk('public')->exists($dir)) Storage::disk('public')->makeDirectory($dir);
return $dir . $filename . $ext;
}
}
///usr/local/ffmpeg-amd64-static/ffmpeg -y
// -i '/www/wwwroot/api.parlando.ink/storage/app/public/files/663d081e3044c0d898bc9eb5d0fbf295.mp4'
// -i '/www/wwwroot/api.parlando.ink/storage/app/public/images/logo.png'
// -i '/www/wwwroot/api.parlando.ink/storage/app/public/audio/163/318/output_16844141095724.mp3'
// -filter_complex "[0:v]scale=720:1280,drawtext="fontfile='/www/wwwroot/api.parlando.ink/storage/app/public/files/f756b152d774a107d5ad08b972764551.TTF'
//:textfile='/www/wwwroot/api.parlando.ink/storage/app/public/text/6/444/output_16844141093118.txt'
//:fontsize=48:fontcolor_expr='#F5F5F5%{eif\\: clip(255*(1*between(t\, 0 + 1.5\, 2.5 - 1.5) + ((t - 0)/1.5)*between(t\, 0\, 0 + 1.5) + (-(t - 2.5)/1.5)*between(t\, 2.5 - 1.5\, 2.5))\, 0\, 255) \\: x\\: 2 }':x=(w-text_w)/2:y=(h-text_h)/2:", drawtext="fontfile='/www/wwwroot/api.parlando.ink/storage/app/public/files/f756b152d774a107d5ad08b972764551.TTF':textfile='/www/wwwroot/api.parlando.ink/storage/app/public/text/137/91/output_16844141093024.txt':fontsize=24:fontcolor_expr='#F5F5F5%{eif\\: clip(255*(1*between(t\, 0 + 1.5\, 2.5 - 1.5) + ((t - 0)/1.5)*between(t\, 0\, 0 + 1.5) + (-(t - 2.5)/1.5)*between(t\, 2.5 - 1.5\, 2.5))\, 0\, 255) \\: x\\: 2 }':x=(w-text_w)/2:y=(h-text_h)/2:", drawtext="fontfile='/www/wwwroot/api.parlando.ink/storage/app/public/files/f756b152d774a107d5ad08b972764551.TTF':textfile='/www/wwwroot/api.parlando.ink/storage/app/public/text/38/32/output_16844141099313.txt':fontsize=48:fontcolor_expr='#F5F5F5%{eif\\: clip(255*(1*between(t\, 2.5 + 1.5\, 5 - 1.5) + ((t - 2.5)/1.5)*between(t\, 2.5\, 2.5 + 1.5) + (-(t - 5)/1.5)*between(t\, 5 - 1.5\, 5))\, 0\, 255) \\: x\\: 2 }':x='(w-text_w)/2':y='h-text_h*2-68':", drawtext="fontfile='/www/wwwroot/api.parlando.ink/storage/app/public/files/f756b152d774a107d5ad08b972764551.TTF':textfile='/www/wwwroot/api.parlando.ink/storage/app/public/text/244/134/output_16844141096908.txt':fontsize=48:fontcolor_expr='#F5F5F5%{eif\\: clip(255*(1*between(t\, 5 + 1.5\, 7.5 - 1.5) + ((t - 5)/1.5)*between(t\, 5\, 5 + 1.5) + (-(t - 7.5)/1.5)*between(t\, 7.5 - 1.5\, 7.5))\, 0\, 255) \\: x\\: 2 }':x='(w-text_w)/2':y='h-text_h*2-68':" [text];[text] [1:v]overlay=20:20[v]" -map [v] -map 2:a -c:v libx264 -bt 256k -r 25 -ar 44100 -ac 2 -qmin 30 -qmax 60 -profile:v baseline -preset fast '/www/wwwroot/api.parlando.ink/storage/app/public/video/93/183/output_16844141105696.mp4'