PHP通过ffmpeg给视频增加字幕显示
时间：2021-07-01 10:21:17
帮助过：55人阅读
- $dir = './'; // set to current folder
- if ($handle = opendir($dir)) {
- while(false!== ($file = readdir($handle))) {
- if ( is_file($dir.$file) ){
- if (preg_match("'\.(avi)$'", $file) ){
- $sub_file = str_ireplace(".avi", ".srt", $dir.$file);
- $idx_file = str_ireplace(".avi", ".idx", $dir.$file);
- $thumb_file = str_ireplace(".avi", ".jpg", $dir.$file);
- $out_file = str_ireplace(".avi", ".mp4", $dir.$file);
- flv_convert_get_thumb($dir.$file, $sub_file, $idx_file, $thumb_file, $out_file);
- }
- else{
- continue;
- }
- }
- }
- closedir($handle);
- }
- //flv_convert_get_thumb('input.avi', 'input.srt', 'output.jpg', 'output.ogm');
- // code provided and updated by steve of phpsnaps ! thanks
- // accepts:
- // 1: the input video file
- // 2: path to thumb jpg
- // 3: path to transcoded mpeg?
- function flv_convert_get_thumb($in, $in_sub, $in_idx, $out_thumb, $out_vid){
- // get thumbnail
- $cmd = 'ffmpeg -v 0 -y -i '.$in.' -vframes 1 -ss 250 -vcodec mjpeg -f rawvideo -s 286x160 -aspect 16:9 '.$out_thumb;
- $res = shell_exec($cmd);
- // $res is the output of the command
- // transcode video
- $cmd = 'mencoder '.$in.' -o '.$out_vid.' -sub '.$in_sub.' -subfont-text-scale 3.0 -subpos 99 -af volume=10 -aspect 16:9 -of avi -noodml -ovc x264 -x264encop$
- $res = shell_exec($cmd);
- }
- ?>
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PHP, ffmpeg
