当我上传mp4文件时，PHP FFMPEG无法正常工作

Question

To convert video to formats compatible with HTML5 video I wrote the following script:

    $srcFile = "name/of/the/video.mp4";
    $destFile = "/media/video/newfilename";
    $ffmpegPath = "/usr/local/bin/ffmpeg";
    $flvtool2Path = "/usr/local/bin/flvtool2";

    // Create our FFMPEG-PHP class
    $ffmpegObj = new ffmpeg_movie($srcFile);
    // Save our needed variables
    $srcWidth = makeMultipleTwo($ffmpegObj->getFrameWidth());
    $srcHeight = makeMultipleTwo($ffmpegObj->getFrameHeight());
    $srcFPS = $ffmpegObj->getFrameRate();
    $srcAB = intval($ffmpegObj->getAudioBitRate()/1000);
    $srcAR = $ffmpegObj->getAudioSampleRate();
    $srcVB = floor($ffmpegObj->getVideoBitRate()/1000); 


    // Call our convert using exec() to convert to the three file types needed by HTML5
    exec($ffmpegPath . " -i ". $srcFile ." -vcodec libx264 -vpre hq -vpre ipod640 -b ".$srcVB."k -bt 100k -acodec libfaac -ab " . $srcAB . "k -ac 2 -s " . $srcWidth . "x" . $srcHeight . " ".$destFile.".mp4");

    exec($ffmpegPath . " -i ". $srcFile ." -vcodec libvpx -r ".$srcFPS." -b ".$srcVB."k -acodec libvorbis -ab " . $srcAB . " -ac 2 -f webm -g 30 -s " . $srcWidth . "x" . $srcHeight . " ".$destFile.".webm");

    exec($ffmpegPath . " -i ". $srcFile ." -vcodec libtheora -r ".$srcFPS." -b ".$srcVB."k -acodec libvorbis -ab " . $srcAB . "k -ac 2 -s " . $srcWidth . "x" . $srcHeight . " ".$destFile.".ogv");

It is supposed to take any input video type and convert it to mp4, ogv and webm. When I run the script on a .mov file it returns a mp4 and ogv file, but not webm. When I run it on a .mp4 file it returns no converted files at all. Is there something wrong with the way I am converting the files? Any help?

Answer 1

you could run the CMDs in commandline to see whats wrong, or add a variable end of each EXEC in the php code

exec($ffmpegPath . " -i ". $srcFile ." -vcodec libx264 -vpre hq -vpre ipod640 -b ".$srcVB."k -bt 100k -acodec libfaac -ab " . $srcAB . "k -ac 2 -s " . $srcWidth . "x" . $srcHeight . " ".$destFile.".mp4" , $VARIABLE );

var_dump($VARIABLE);

and look what kind of error you get :)