index.php
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$video_path = 'path/to/example_preview/input.mp4'; $dur = shell_exec("ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 '$video_path'"); $seconds = round($dur); $thumb_0 = gmdate('H:i:s', $seconds / 8); $thumb_1 = gmdate('H:i:s', $seconds / 4); $thumb_2 = gmdate('H:i:s', $seconds / 2 + $seconds / 8); $thumb_3 = gmdate('H:i:s', $seconds / 2 + $seconds / 4); $path_clip = 'path/to/example_preview/; $preview_list = fopen($path_clip . 'list.txt', "w"); $preview_array = []; for ($i=0; $i <= 3; $i++) { $thumb = ${'thumb_'.$i}; shell_exec("ffmpeg -i '$video_path' -an -ss $thumb -t 2 -vf 'scale=320:180:force_original_aspect_ratio=decrease,pad=320:180:(ow-iw)/2:(oh-ih)/2,setsar=1' -y $path_clip/$i.p.mp4"); $output = $path_clip . $i.'.p.mp4'; if (file_exists($output)) { fwrite($preview_list, "file '". $output . "'\n"); array_push($preview_array, $output); } } fclose($preview_list); shell_exec("ffmpeg -f concat -safe 0 -i $path_clip/list.txt -y $path_clip/preview.mp4"); if (!empty($preview_array)) { foreach ($preview_array as $v) { unlink($v); } } // remove preview list unlink($path_clip . 'list.txt'); |
