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This filter is a video filter, not a frame filter

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This commit is contained in:
Romain Biard 2017-01-11 10:17:21 -03:00
commit 3aa13c09d3
4 changed files with 122 additions and 129 deletions
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114
src/FFMpeg/Filters/Frame/ExtractMultipleFramesFilter.php
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@ -1,114 +0,0 @@
<?php
/*
* This file is part of PHP-FFmpeg.
*
* (c) Alchemy <dev.team@alchemy.fr>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace FFMpeg\Filters\Frame;
use FFMpeg\Exception\RuntimeException;
use FFMpeg\Media\Frame;
class ExtractMultipleFramesFilter extends AbstractMediaType implements FrameFilterInterface
{
/** will extract a frame every second */
const FRAMERATE_EVERY_SEC = '1/1';
/** will extract a frame every 2 seconds */
const FRAMERATE_EVERY_2SEC = '1/2';
/** will extract a frame every 5 seconds */
const FRAMERATE_EVERY_5SEC = '1/5';
/** will extract a frame every 10 seconds */
const FRAMERATE_EVERY_10SEC = '1/10';
/** will extract a frame every 30 seconds */
const FRAMERATE_EVERY_10SEC = '1/30';
/** will extract a frame every minute */
const FRAMERATE_EVERY_10SEC = '1/60';
{
/** @var integer */
private $priority;
private $frameRate;
private $destinationFolder;
public function __construct($frameRate = self::FRAMERATE_EVERY_SEC, $destinationFolder = __DIR__, $priority = 0)
{
$this->priority = $priority;
$this->frameRate = $frameRate;
$this->destinationFolder = $destinationFolder;
}
/**
* {@inheritdoc}
*/
public function getPriority()
{
return $this->priority;
}
/**
* {@inheritdoc}
*/
public function getFrameRate()
{
return $this->frameRate;
}
/**
* {@inheritdoc}
*/
public function getDestinationFolder()
{
return $this->destinationFolder;
}
/**
* {@inheritdoc}
*/
public function apply(Frame $frame)
{
$dimensions = null;
$commands = array();
foreach ($frame->getVideo()->getStreams() as $stream) {
if ($stream->isVideo()) {
try {
// Get the duration of the video
$duration = $this->getFormat()->get('duration');
// Get the number of frames per second we have to extract.
if(preg_match('/(\d+)(?:\s*)([\+\-\*\/])(?:\s*)(\d+)/', $this->frameRate, $matches) !== FALSE){
$operator = $matches[2];
switch($operator){
case '/':
$nbFramesPerSecond = $matches[1] / $matches[3];
break;
default:
throw new InvalidArgumentException('The frame rate is not a proper division: ' . $this->frameRate);
break;
}
}
// Set the number of digits to use in the exported filenames
$nbDigitsInFileNames = ceil( $duration * $nbFramesPerSecond );
// Set the parameters
$commands[] = '-vf';
$commands[] = 'fps=' . $this->frameRate;
$commands[] = $this->destinationFolder . 'frame-%0'.$nbDigitsInFileNames.'d.jpg';
break;
}
catch (RuntimeException $e) {
}
}
}
return $commands;
}
}

15
src/FFMpeg/Filters/Frame/FrameFilters.php
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@ -36,19 +36,4 @@ class FrameFilters
return $this;
}
/**
* Fixes the display ratio of the output frame.
*
* In case the sample ratio and display ratio are different, image may be
* anamorphozed. This filter fixes this by specifying the output size.
*
* @return FrameFilters
*/
public function extractMultipleFrames($frameRate = ExtractMultipleFramesFilter::FRAMERATE_EVERY_2SEC, $destinationFolder = __DIR__)
{
$this->frame->addFilter(new ExtractMultipleFramesFilter($frameRate, $destinationFolder));
return $this;
}
}

109
src/FFMpeg/Filters/Video/ExtractMultipleFramesFilter.php Normal file
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@ -0,0 +1,109 @@
<?php
/*
* This file is part of PHP-FFmpeg.
*
* (c) Strime <romain@strime.io>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace FFMpeg\Filters\Video;
use FFMpeg\Exception\InvalidArgumentException;
class ExtractMultipleFramesFilter implements VideoFilterInterface
{
/** will extract a frame every second */
const FRAMERATE_EVERY_SEC = '1/1';
/** will extract a frame every 2 seconds */
const FRAMERATE_EVERY_2SEC = '1/2';
/** will extract a frame every 5 seconds */
const FRAMERATE_EVERY_5SEC = '1/5';
/** will extract a frame every 10 seconds */
const FRAMERATE_EVERY_10SEC = '1/10';
/** will extract a frame every 30 seconds */
const FRAMERATE_EVERY_10SEC = '1/30';
/** will extract a frame every minute */
const FRAMERATE_EVERY_10SEC = '1/60';
{
/** @var integer */
private $priority;
private $frameRate;
private $destinationFolder;
public function __construct($frameRate = self::FRAMERATE_EVERY_SEC, $destinationFolder = __DIR__, $priority = 0)
{
$this->priority = $priority;
$this->frameRate = $frameRate;
$this->destinationFolder = $destinationFolder;
}
/**
* {@inheritdoc}
*/
public function getPriority()
{
return $this->priority;
}
/**
* {@inheritdoc}
*/
public function getFrameRate()
{
return $this->frameRate;
}
/**
* {@inheritdoc}
*/
public function getDestinationFolder()
{
return $this->destinationFolder;
}
/**
* {@inheritdoc}
*/
public function apply(Video $video, VideoInterface $format)
{
$dimensions = null;
$commands = array();
try {
// Get the duration of the video
$duration = $this->getFormat()->get('duration');
// Get the number of frames per second we have to extract.
if(preg_match('/(\d+)(?:\s*)([\+\-\*\/])(?:\s*)(\d+)/', $this->frameRate, $matches) !== FALSE){
$operator = $matches[2];
switch($operator){
case '/':
$nbFramesPerSecond = $matches[1] / $matches[3];
break;
default:
throw new InvalidArgumentException('The frame rate is not a proper division: ' . $this->frameRate);
break;
}
}
// Set the number of digits to use in the exported filenames
$nbDigitsInFileNames = ceil( $duration * $nbFramesPerSecond );
// Set the parameters
$commands[] = '-vf';
$commands[] = 'fps=' . $this->frameRate;
$commands[] = $this->destinationFolder . 'frame-%0'.$nbDigitsInFileNames.'d.jpg';
break;
}
catch (RuntimeException $e) {
throw new RuntimeException('An error occured while extracting the frames: ' . $e->getCode() . ' The message: '$e->getMessage());
}
return $commands;
}
}

13
src/FFMpeg/Filters/Video/VideoFilters.php
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@ -132,4 +132,17 @@ class VideoFilters extends AudioFilters
return $this;
}
/**
* @param string $frameRate
* @param string $destinationFolder
*
* @return $this
*/
public function extractMultipleFrames($frameRate = ExtractMultipleFramesFilter::FRAMERATE_EVERY_2SEC, $destinationFolder = __DIR__)
{
$this->frame->addFilter(new ExtractMultipleFramesFilter($frameRate, $destinationFolder));
return $this;
}
}