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Add resize mode, move getMultiple method to FFMpeg

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This commit is contained in:
grosroro 2012-05-28 19:46:49 +02:00
commit fc7529822f
6 changed files with 185 additions and 62 deletions
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72
src/FFMpeg/Format/DefaultVideo.php
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@ -20,9 +20,11 @@ use FFMpeg\Exception\InvalidArgumentException;
*/
abstract class DefaultVideo extends DefaultAudio implements Video
{
protected $width;
protected $height;
protected $frameRate = 25;
protected $resizeMode = self::RESIZEMODE_FIT;
protected $videoCodec;
protected $GOPsize = 25;
protected $kiloBitrate = 1000;
@ -59,12 +61,42 @@ abstract class DefaultVideo extends DefaultAudio implements Video
throw new InvalidArgumentException('Wrong height value');
}
$this->width = $this->getMultiple($width, 16);
$this->height = $this->getMultiple($height, 16);
$this->width = $width;
$this->height = $height;
return $this;
}
/**
* Set the resize mode
*
* @param string $mode The mode, one of the self::RESIZEMODE_* constants
*
* @throws InvalidArgumentException
*/
public function setResizeMode($mode)
{
if ( ! in_array($mode, array(self::RESIZEMODE_FIT, self::RESIZEMODE_INSET))) {
throw new InvalidArgumentException(
'Resize mode `%s` is not valid , avalaible values are %s',
$mode,
implode(', ', array(self::RESIZEMODE_FIT, self::RESIZEMODE_INSET))
);
}
$this->resizeMode = $mode;
return $this;
}
/**
* {@inheritdoc}
*/
public function getResizeMode()
{
return $this->resizeMode;
}
/**
* {@inheritdoc}
*/
@ -145,40 +177,4 @@ abstract class DefaultVideo extends DefaultAudio implements Video
return $this;
}
/**
* Returns the nearest multiple for a value
*
* @param integer $value
* @param integer $multiple
* @return integer
*/
protected function getMultiple($value, $multiple)
{
$modulo = $value % $multiple;
$ret = (int) $multiple;
$halfDistance = $multiple / 2;
if ($modulo <= $halfDistance)
$bound = 'bottom';
else
$bound = 'top';
switch ($bound) {
default:
case 'top':
$ret = $value + $multiple - $modulo;
break;
case 'bottom':
$ret = $value - $modulo;
break;
}
if ($ret < $multiple) {
$ret = (int) $multiple;
}
return (int) $ret;
}
}