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Hello, I have been working on a php webservice, which receives videos(uploaded) from iphone and upload them to Amazon cloudFront. After uploading videos, I need to generate thumbnails for video from the Amazon link generated. I am using ffmpeg with shell_exec command for it. Here is the code for the same: public function createThumbnail($userId,$fileUrl,$imageName){ //$imageUrl = 'http://184.168.116.177:81/json_api/json/bin/'; if(!is_dir("images/".$userId)){ mkdir("images/".$userId); } // path of installed ffmpeg $ffmpeg = $_SERVER['DOCUMENT_ROOT'] .'bin/ffmpeg'; $cmd = "$ffmpeg -itsoffset -1 -i $fileUrl -vcodec mjpeg -vframes 1 -an -f rawvideo -s 320x240 images/".$userId."/".$imageName; shell_exec($cmd); return "images/".$userId."/".$imageName; } The above code generates the thumbnail, but script does not execute after shell_exec command. So, there is no response sent to iphone end about the thumbnail link. This function works well video is uploaded from web browser of pc. If I comment, shell_exec command, then response is sent to iphone end, but obviousely image is not created. Thanks in advance.
