Initila Import

src/FFMpeg/AdapterInterface.php

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+<?php
+
+namespace FFMpeg;
+
+interface AdapterInterface
+{
+
+    public static function load(\Monolog\Logger $logger);
+
+}

src/FFMpeg/Binary.php

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+<?php
+
+namespace FFMpeg;
+
+abstract class Binary implements AdapterInterface
+{
+
+    protected $binary;
+
+    /**
+     *
+     * @var \Monolog\Logger
+     */
+    protected $logger;
+
+    public function __construct($binary, $logger = null)
+    {
+        $this->binary = $binary;
+
+        if ( ! $logger)
+        {
+            $logger = new \Monolog\Logger('default');
+            $logger->pushHandler(new \Monolog\Handler\NullHandler());
+        }
+
+        $this->logger = $logger;
+    }
+
+    public static function load(\Monolog\Logger $logger = null)
+    {
+        if ('' === $binary = self::autodetect(static::getBinaryName()))
+        {
+            throw new \Exception('Binary not found');
+        }
+
+        return new static($binary, $logger);
+    }
+
+    protected static function run($command, $bypass_errors = false)
+    {
+        $process = new \Symfony\Component\Process\Process($command);
+        $process->run();
+
+        if ( ! $process->isSuccessful() && ! $bypass_errors)
+        {
+            throw new Exception\RuntimeException('Failed to execute ' . $command);
+        }
+
+        $result = $process->getOutput();
+        unset($process);
+
+        return $result;
+    }
+
+    /**
+     * Autodetect the presence of a binary
+     *
+     * @param   string      $binaryName
+     * @return  string
+     */
+    protected static function autodetect($binaryName)
+    {
+        return trim(self::run(sprintf('which %s', escapeshellarg($binaryName)), true));
+    }
+
+    protected static function getBinaryName()
+    {
+        throw new Exception('Should be implemented');
+    }
+
+}

src/FFMpeg/FFMpeg.php

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+<?php
+
+namespace FFMpeg;
+
+class FFMpeg extends Binary
+{
+
+    protected $pathfile;
+
+    public function open($pathfile)
+    {
+        if ( ! file_exists($pathfile))
+        {
+            $this->logger->addError(sprintf('Request to open %s failed', $pathfile));
+            throw new \InvalidArgumentException(sprintf('File %s does not exists', $pathfile));
+        }
+
+        $this->logger->addInfo(sprintf('FFmpeg opens %s', $pathfile));
+
+        $this->pathfile = $pathfile;
+    }
+
+    public function extractImage($time, $output, $width, $height)
+    {
+        if ( ! $this->pathfile)
+        {
+            throw new \RuntimeException('No file open');
+        }
+
+        $cmd = $this->binary
+          . ' -i ' . escapeshellarg($this->pathfile)
+          . ' -vframes 1 -ss ' . $time
+          . ' -f image2 ' . escapeshellarg($output);
+
+        $this->logger->addInfo(sprintf('Executing command %s', $cmd));
+
+        $process = new \Symfony\Component\Process\Process($cmd);
+        $process->run();
+
+        if ( ! $process->isSuccessful())
+        {
+            $this->logger->addError(sprintf('Command failed :: %s', $process->getErrorOutput()));
+
+            if (file_exists($output) && is_writable($output))
+            {
+                unlink($output);
+            }
+
+            throw new \RuntimeException('Failed to extract image');
+        }
+
+        $this->logger->addInfo('Command run with success');
+
+        return true;
+    }
+
+    public function encode(Format\Format $format, $outputPathfile, $threads = 1)
+    {
+        if ( ! $this->pathfile)
+        {
+            throw new \RuntimeException('No file open');
+        }
+
+        $threads = max(min($threads, 64), 1);
+
+        $cmd_part1 = $this->binary
+          . ' -y -i '
+          . escapeshellarg($this->pathfile) . ' '
+          . $format->getExtraParams() . ' ';
+
+        $cmd_part2 = ' -s ' . $format->getWidth() . 'x' . $format->getHeight()
+          . ' -r ' . $format->getFrameRate()
+          . ' -vcodec ' . $format->getVideoCodec()
+          . ' -b ' . $format->getKiloBitrate() . 'k -g 25 -bf 3'
+          . ' -threads ' . $threads
+          . ' -refs 6 -b_strategy 1 -coder 1 -qmin 10 -qmax 51 '
+          . ' -sc_threshold 40 -flags +loop -cmp +chroma'
+          . ' -me_range 16 -subq 7 -i_qfactor 0.71 -qcomp 0.6 -qdiff 4 '
+          . ' -trellis 1 -qscale 1 '
+          . '-acodec ' . $format->getAudioCodec() . ' -ab 92k ';
+
+
+        $tmpFile = new \SplFileInfo(tempnam(sys_get_temp_dir(), 'temp') . '.' . pathinfo($outputPathfile, PATHINFO_EXTENSION));
+
+        $passes = array();
+
+        $passes[] = $cmd_part1 . ' -pass 1 ' . $cmd_part2
+          . ' -an ' . escapeshellarg($tmpFile->getPathname());
+
+        $passes[] = $cmd_part1 . ' -pass 2 ' . $cmd_part2
+          . ' -ac 2 -ar 44100 ' . escapeshellarg($outputPathfile);
+
+        foreach ($passes as $pass)
+        {
+            $process = new \Symfony\Component\Process\Process($pass);
+
+            try
+            {
+                $process->run();
+            }
+            catch (\Exception $e)
+            {
+                break;
+            }
+        }
+
+        $this->cleanupTemporaryFile($tmpFile->getPathname());
+        $this->cleanupTemporaryFile(getcwd() . '/ffmpeg2pass-0.log');
+        $this->cleanupTemporaryFile(getcwd() . '/ffmpeg2pass-0.log.mbtree');
+
+        if ($process instanceof \Symfony\Component\Process\Process && ! $process->isSuccessful())
+        {
+            throw new \RuntimeException(sprintf('Encoding failed : %s', $process->getErrorOutput()));
+        }
+
+        return true;
+    }
+
+    protected function cleanupTemporaryFile($pathfile)
+    {
+        if (file_exists($pathfile) && is_writable($pathfile))
+        {
+            unlink($pathfile);
+        }
+    }
+
+    protected static function getBinaryName()
+    {
+        return 'ffmpeg';
+    }
+
+}

src/FFMpeg/FFProbe.php

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+<?php
+
+namespace FFMpeg;
+
+class FFProbe extends Binary
+{
+
+    public function probeFormat($pathfile)
+    {
+        if ( ! is_file($pathfile))
+        {
+
+            throw new \RuntimeException($pathfile);
+        }
+
+        $cmd = $this->binary . ' ' . $pathfile . ' -show_format';
+
+        return $this->executeProbe($cmd);
+    }
+
+    public function probeStreams($pathfile)
+    {
+        if ( ! is_file($pathfile))
+        {
+            throw new \RuntimeException($pathfile);
+        }
+
+        $cmd = $this->binary . ' ' . $pathfile . ' -show_streams';
+
+        return $this->executeProbe($cmd);
+    }
+
+    protected function executeProbe($command)
+    {
+        $process = new \Symfony\Component\Process\Process($command);
+
+        $process->run();
+
+        if ( ! $process->isSuccessful())
+        {
+            throw new \RuntimeException('Failed to probe');
+        }
+
+        return $process->getOutput();
+    }
+
+    protected static function getBinaryName()
+    {
+        return 'ffprobe';
+    }
+
+}

src/FFMpeg/Format/DefaultFormat.php

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+<?php
+
+namespace FFMpeg\Format;
+
+abstract class DefaultFormat implements Format
+{
+
+    protected $width;
+    protected $height;
+    protected $frameRate       = 25;
+    protected $audioCodec;
+    protected $audioSampleRate = 44100;
+    protected $videoCodec;
+    protected $kiloBitrate     = 1000;
+    protected $GOPsize         = 25;
+
+    public function __construct($width, $height)
+    {
+        $this->setDimensions($width, $height);
+    }
+
+    public function getExtraParams()
+    {
+
+    }
+
+    public function getWidth()
+    {
+        return $this->width;
+    }
+
+    public function getHeight()
+    {
+        return $this->height;
+    }
+
+    public function setDimensions($width, $height)
+    {
+        if ($width < 1)
+        {
+            throw new \InvalidArgumentException('Wrong width value');
+        }
+        if ($height < 1)
+        {
+            throw new \InvalidArgumentException('Wrong height value');
+        }
+
+        $this->width = $this->getMultiple($width, 16);
+        $this->height = $this->getMultiple($height, 16);
+
+        return;
+    }
+
+    public function getFrameRate()
+    {
+        return $this->frameRate;
+    }
+
+    public function setFrameRate($frameRate)
+    {
+        if ($frameRate < 1)
+        {
+            throw new \InvalidArgumentException('Wrong framerate value');
+        }
+
+        $this->frameRate = (int) $frameRate;
+    }
+
+    public function getAudioCodec()
+    {
+        return $this->audioCodec;
+    }
+
+    public function setAudioCodec($audioCodec)
+    {
+        if ( ! in_array($audioCodec, $this->getAvailableAudioCodecs()))
+        {
+            throw new \InvalidArgumentException('Wrong audiocodec value');
+        }
+
+        $this->audioCodec = $audioCodec;
+    }
+
+    public function getAudioSampleRate()
+    {
+        return $this->audioSampleRate;
+    }
+
+    public function setAudioSampleRate($audioSampleRate)
+    {
+        if ($audioSampleRate < 1)
+        {
+            throw new \InvalidArgumentException('Wrong audio sample rate value');
+        }
+
+        $this->audioSampleRate = (int) $audioSampleRate;
+    }
+
+    public function getVideoCodec()
+    {
+        return $this->videoCodec;
+    }
+
+    public function setVideoCodec($videoCodec)
+    {
+        if ( ! in_array($videoCodec, $this->getAvailableVideoCodecs()))
+        {
+            throw new \InvalidArgumentException('Wrong videocodec value');
+        }
+
+        $this->videoCodec = $videoCodec;
+    }
+
+    public function getKiloBitrate()
+    {
+        return $this->kiloBitrate;
+    }
+
+    public function setKiloBitrate($kiloBitrate)
+    {
+        if ($kiloBitrate < 1)
+        {
+            throw new \InvalidArgumentException('Wrong kiloBitrate value');
+        }
+
+        $this->kiloBitrate = (int) $kiloBitrate;
+    }
+
+    public function getGOPsize()
+    {
+        return $this->GOPsize;
+    }
+
+    public function setGOPsize($GOPsize)
+    {
+        $this->GOPsize = (int) $GOPsize;
+    }
+
+    protected function getMultiple($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;
+    }
+
+    abstract protected function getAvailableAudioCodecs();
+
+    abstract protected function getAvailableVideoCodecs();
+
+}

src/FFMpeg/Format/Format.php

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+<?php
+
+namespace FFMpeg\Format;
+
+interface Format
+{
+
+    public function getExtraParams();
+
+    public function getWidth();
+
+    public function getHeight();
+
+    public function getFrameRate();
+
+    public function getAudioCodec();
+
+    public function getAudioSampleRate();
+
+    public function getVideoCodec();
+
+    public function getKiloBitrate();
+
+    public function getGOPSize();
+
+}

src/FFMpeg/Format/Ogg.php

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+<?php
+
+namespace FFMpeg\Format;
+
+class Ogg extends DefaultFormat
+{
+
+    protected $audioCodec = 'libvorbis';
+    protected $videoCodec = 'libtheora';
+
+    protected function getAvailableAudioCodecs()
+    {
+        return array('libvorbis');
+    }
+
+    protected function getAvailableVideoCodecs()
+    {
+        return array('libtheora');
+    }
+
+}

src/FFMpeg/Format/WebM.php

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+<?php
+
+namespace FFMpeg\Format;
+
+class WebM extends DefaultFormat
+{
+
+    protected $audioCodec = 'libvorbis';
+    protected $videoCodec = 'libvpx';
+
+    public function getExtraParams()
+    {
+        return '-f webm';
+    }
+
+    protected function getAvailableAudioCodecs()
+    {
+        return array('libvorbis');
+    }
+
+    protected function getAvailableVideoCodecs()
+    {
+        return array('libvpx');
+    }
+
+}

src/FFMpeg/Format/X264.php

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+<?php
+
+namespace FFMpeg\Format;
+
+class X264 extends DefaultFormat
+{
+
+    protected $audioCodec = 'libmp3lame';
+    protected $videoCodec = 'libx264';
+
+    protected function getAvailableAudioCodecs()
+    {
+        return array('libvo_aacenc', 'libfaac', 'libmp3lame');
+    }
+
+    protected function getAvailableVideoCodecs()
+    {
+        return array('libx264');
+    }
+
+}