gregorybesson / PlaygroundCore

        return $target;

    }

    public function mergeMp3ToMp4($audioSource, $videoSource, $target)

    {

        $this->serviceLocator->setShared('playgroundcore_phpvideotoolkit', false);

        $this->serviceLocator->get('playgroundcore_phpvideotoolkit')

           ->addCommand('-i', $videoSource)

           ->addCommand('-i', $audioSource, true)

           ->setOutputPath($target)

           ->execute();

        return $target;

    }

    public function convertMp4ToOgv($videoSource, $target)

    {

        return $target;

    }

    public function convertMp4ToOgv($videoSource, $target)

    {

        $this->serviceLocator->setShared('playgroundcore_phpvideotoolkit', false);

        $this->serviceLocator->get('playgroundcore_phpvideotoolkit')

            ->addCommand('-i', $videoSource)

            ->setOutputPath($target)

            ->execute();

        return $target;

    }

    /**

     * ffmpeg -i sound.avi -vn -ar 44100 -ac 2 -ab 192 -f mp3 out.mp3

        return $target;

    }

    public function mergeMp4($videoSource, $target)

    {

        // don't want this service to be a singleton. I have to reset the ffmpeg parameters for each call.

        $this->serviceLocator->setShared('playgroundcore_phpvideotoolkit', false);

        $this->serviceLocator->get('playgroundcore_phpvideotoolkit')

            ->addPreInputCommand('-y')

            ->addCommand('-i', $videoSource)

            ->setOutputPath($target)

            ->execute();

        return $target;

    }

    /*

    *  this method takes an image (with alpha) or a mov video (the format to keep alpha channel) and overlay this layer

    *

    * ffmpeg -i title.wav -af "volume=4" titleok.wav

    */

    public function increaseVolumeSound($source, $level, $target)

    {

        $this->serviceLocator->setShared('playgroundcore_phpvideotoolkit', false);

        $this->serviceLocator->get('playgroundcore_phpvideotoolkit')

            ->addPreInputCommand('-y')

            ->addCommand('-i', $source, true)

            ->addCommand('-af', 'volume='.$level)

            ->setOutputPath($target)

            ->execute();

        return $target;

    }

    /*

    *  this method creates an audio file of $duration seconds with no sound

    *  on a background video.

    *  ffmpeg -y -filter_complex 'aevalsrc=0:d=1.6' silence.wav

    */

    public function createNullSound($duration = 1, $target)

    {

        $this->serviceLocator->setShared('playgroundcore_phpvideotoolkit', false);

        $this->serviceLocator->get('playgroundcore_phpvideotoolkit')

            ->addPreInputCommand('-y')

            ->addCommand('-filter_complex', 'aevalsrc=0:d='.$duration)

            ->setOutputPath($target)

            ->execute();

        return $target;

    }

    /**

    * This method concatenate an array of sounds