Initila Import

src/FFMpeg/FFMpeg.php

@@ -0,0 +1,132 @@
+<?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';
+    }
+
+}