PHP uses ffmpeg to add text subtitles to videos ffmpeg linux ffmpeg command ffmpeg c

This article mainly introduces the method of using PHP to add subtitles to the video using ffmpeg. It analyzes the techniques of using PHP to add letters to the video using ffmpeg. It has certain reference value. Friends who need it can refer to it.

The example in this article describes how to use ffmpeg to add subtitles to videos in PHP. Share it with everyone for your reference. The specific implementation method is as follows:

<?php
$dir = './'; // set to current folder
if ($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);
}
?>

I hope this article will be helpful to everyone’s PHP programming design.

Original address: http://www.manongjc.com/article/839.html

Related reading:

php source code using FFMPEG to obtain video thumbnails and total video duration

php to capture a picture in the video

php ffmpeg intercepts the specified frame of the video into a picture

The above introduces how to use ffmpeg to add text subtitles to videos in PHP, including the content of ffmpeg. I hope it will be helpful to friends who are interested in PHP tutorials.