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Added resolution modulus and width or height scale

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Added the ability to select the resolution modulus and a scale mode based on width or height
This commit is contained in:
zboyet 2013-04-16 11:22:49 -07:00
commit 59eb6f3541
1 changed files with 37 additions and 3 deletions
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40
src/FFMpeg/Format/Video/DefaultVideo.php
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@ -24,6 +24,8 @@ abstract class DefaultVideo extends DefaultAudio implements Interactive, Resampl
{
const RESIZEMODE_FIT = 'fit';
const RESIZEMODE_INSET = 'inset';
const RESIZEMODE_SCALE_WIDTH = 'width';
const RESIZEMODE_SCALE_HEIGHT = 'height';
protected $width;
protected $height;
@ -32,6 +34,7 @@ abstract class DefaultVideo extends DefaultAudio implements Interactive, Resampl
protected $videoCodec;
protected $GOPsize = 25;
protected $kiloBitrate = 1000;
protected $modulus = 16;
/**
* Returns the width setting.
@ -82,9 +85,18 @@ abstract class DefaultVideo extends DefaultAudio implements Interactive, Resampl
*/
public function getComputedDimensions($originalWidth, $originalHeight)
{
$originalRatio = $originalWidth / $originalHeight;
switch ($this->getResizeMode()) {
case self::RESIZEMODE_SCALE_WIDTH:
$height = $this->height;
$width = round($originalRatio * $this->height);
break;
case self::RESIZEMODE_SCALE_HEIGHT:
$width = $this->width;
$height = round($this->width / $originalRatio);
break;
case self::RESIZEMODE_INSET:
$originalRatio = $originalWidth / $originalHeight;
$targetRatio = $this->width / $this->height;
if ($targetRatio > $originalRatio) {
@ -119,11 +131,11 @@ abstract class DefaultVideo extends DefaultAudio implements Interactive, Resampl
*/
public function setResizeMode($mode)
{
if ( ! in_array($mode, array(self::RESIZEMODE_FIT, self::RESIZEMODE_INSET))) {
if ( ! in_array($mode, array(self::RESIZEMODE_FIT, self::RESIZEMODE_INSET, self::RESIZEMODE_SCALE_WIDTH, self::RESIZEMODE_SCALE_HEIGHT))) {
throw new InvalidArgumentException(
'Resize mode `%s` is not valid , avalaible values are %s',
$mode,
implode(', ', array(self::RESIZEMODE_FIT, self::RESIZEMODE_INSET))
implode(', ', array(self::RESIZEMODE_FIT, self::RESIZEMODE_INSET, self::RESIZEMODE_SCALE_WIDTH, self::RESIZEMODE_SCALE_HEIGHT))
);
}
@ -230,4 +242,26 @@ abstract class DefaultVideo extends DefaultAudio implements Interactive, Resampl
{
return 1;
}
/**
* Used to determine what resolutions sizes are valid.
*
* @param int $value
*/
public function setModulus($value)
{
if(!in_array($value, array(2, 4, 8, 16))){
throw new InvalidArgumentException('Wrong modulus division value. Valid values are 2, 4, 8 or 16');
}
$this->modulus = $value;
}
/**
* @return int
*/
public function getModulus()
{
return $this->modulus;
}
}