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<?php
/*
* This file is part of PHP-FFmpeg.
*
* (c) Alchemy <[email protected]>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace FFMpeg\Media;
use Alchemy\BinaryDriver\Exception\ExecutionFailureException;
use FFMpeg\Exception\InvalidArgumentException;
use FFMpeg\Exception\RuntimeException;
use FFMpeg\Filters\Audio\SimpleFilter;
use FFMpeg\Filters\FilterInterface;
use FFMpeg\Filters\Video\ClipFilter;
use FFMpeg\Filters\Video\VideoFilters;
use FFMpeg\Format\AudioInterface;
use FFMpeg\Format\FormatInterface;
use FFMpeg\Format\ProgressableInterface;
use FFMpeg\Format\VideoInterface;
use Spatie\TemporaryDirectory\TemporaryDirectory;
abstract class AbstractVideo extends Audio
{
/**
* FileSystem Manager instance.
*
* @var Manager
*/
protected $fs;
/**
* FileSystem Manager ID.
*
* @var int
*/
protected $fsId;
/**
* {@inheritDoc}
*
* @return VideoFilters
*/
public function filters()
{
return new VideoFilters($this);
}
/**
* {@inheritDoc}
*
* @return Video
*/
public function addFilter(FilterInterface $filter)
{
$this->filters->add($filter);
return $this;
}
/**
* Exports the video in the desired format, applies registered filters.
*
* @param string $outputPathfile
*
* @return Video
*
* @throws RuntimeException
*/
public function save(FormatInterface $format, $outputPathfile)
{
$passes = $this->buildCommand($format, $outputPathfile);
$failure = null;
$totalPasses = $format->getPasses();
foreach ($passes as $pass => $passCommands) {
try {
/** add listeners here */
$listeners = null;
if ($format instanceof ProgressableInterface) {
$filters = clone $this->filters;
$duration = 0;
// check the filters of the video, and if the video has the ClipFilter then
// take the new video duration and send to the
// FFMpeg\Format\ProgressListener\AbstractProgressListener class
foreach ($filters as $filter) {
if ($filter instanceof ClipFilter) {
if (null === $filter->getDuration()) {
continue;
}
$duration = $filter->getDuration()->toSeconds();
break;
}
}
$listeners = $format->createProgressListener($this, $this->ffprobe, $pass + 1, $totalPasses, $duration);
}
$this->driver->command($passCommands, false, $listeners);
} catch (ExecutionFailureException $e) {
$failure = $e;
break;
}
}
$this->fs->delete();
if (null !== $failure) {
throw new RuntimeException('Encoding failed', $failure->getCode(), $failure);
}
return $this;
}
/**
* NOTE: This method is different to the Audio's one, because Video is using passes.
* {@inheritDoc}
*/
public function getFinalCommand(FormatInterface $format, $outputPathfile)
{
$finalCommands = [];
foreach ($this->buildCommand($format, $outputPathfile) as $pass => $passCommands) {
$finalCommands[] = implode(' ', $passCommands);
}
$this->fs->delete();
return $finalCommands;
}
/**
* **NOTE:** This creates passes instead of a single command!
*
* {@inheritDoc}
*
* @return string[][]
*/
protected function buildCommand(FormatInterface $format, $outputPathfile)
{
$commands = $this->basePartOfCommand($format);
$filters = clone $this->filters;
$filters->add(new SimpleFilter($format->getExtraParams(), 10));
if ($this->driver->getConfiguration()->has('ffmpeg.threads')) {
$filters->add(new SimpleFilter(['-threads', $this->driver->getConfiguration()->get('ffmpeg.threads')]));
}
if ($format instanceof VideoInterface) {
if (null !== $format->getVideoCodec()) {
$filters->add(new SimpleFilter(['-vcodec', $format->getVideoCodec()]));
}
}
if ($format instanceof AudioInterface) {
if (null !== $format->getAudioCodec()) {
$filters->add(new SimpleFilter(['-acodec', $format->getAudioCodec()]));
}
}
foreach ($filters as $filter) {
$commands = array_merge($commands, $filter->apply($this, $format));
}
if ($format instanceof VideoInterface) {
if (0 !== $format->getKiloBitrate()) {
$commands[] = '-b:v';
$commands[] = $format->getKiloBitrate().'k';
}
$commands[] = '-refs';
$commands[] = '6';
$commands[] = '-coder';
$commands[] = '1';
$commands[] = '-sc_threshold';
$commands[] = '40';
$commands[] = '-flags';
$commands[] = '+loop';
$commands[] = '-me_range';
$commands[] = '16';
$commands[] = '-subq';
$commands[] = '7';
$commands[] = '-i_qfactor';
$commands[] = '0.71';
$commands[] = '-qcomp';
$commands[] = '0.6';
$commands[] = '-qdiff';
$commands[] = '4';
$commands[] = '-trellis';
$commands[] = '1';
}
if ($format instanceof AudioInterface) {
if (null !== $format->getAudioKiloBitrate()) {
$commands[] = '-b:a';
$commands[] = $format->getAudioKiloBitrate().'k';
}
if (null !== $format->getAudioChannels()) {
$commands[] = '-ac';
$commands[] = $format->getAudioChannels();
}
}
// If the user passed some additional parameters
if ($format instanceof VideoInterface) {
if (null !== $format->getAdditionalParameters()) {
foreach ($format->getAdditionalParameters() as $additionalParameter) {
$commands[] = $additionalParameter;
}
}
}
// Merge Filters into one command
$videoFilterVars = $videoFilterProcesses = [];
for ($i = 0; $i < count($commands); ++$i) {
$command = $commands[$i];
if ('-vf' === $command) {
$commandSplits = explode(';', $commands[$i + 1]);
if (1 == count($commandSplits)) {
$commandSplit = $commandSplits[0];
$command = trim($commandSplit);
if (preg_match("/^\[in\](.*?)\[out\]$/is", $command, $match)) {
$videoFilterProcesses[] = $match[1];
} else {
$videoFilterProcesses[] = $command;
}
} else {
foreach ($commandSplits as $commandSplit) {
$command = trim($commandSplit);
if (preg_match("/^\[[^\]]+\](.*?)\[[^\]]+\]$/is", $command, $match)) {
$videoFilterProcesses[] = $match[1];
} else {
$videoFilterVars[] = $command;
}
}
}
unset($commands[$i]);
unset($commands[$i + 1]);
++$i;
}
}
$videoFilterCommands = $videoFilterVars;
$lastInput = 'in';
foreach ($videoFilterProcesses as $i => $process) {
$command = '['.$lastInput.']';
$command .= $process;
$lastInput = 'p'.$i;
if ($i === (count($videoFilterProcesses) - 1)) {
$command .= '[out]';
} else {
$command .= '['.$lastInput.']';
}
$videoFilterCommands[] = $command;
}
$videoFilterCommand = implode(';', $videoFilterCommands);
if ($videoFilterCommand) {
$commands[] = '-vf';
$commands[] = $videoFilterCommand;
}
$this->fsId = uniqid('ffmpeg-passes');
$this->fs = $this->getTemporaryDirectory()->name($this->fsId)->create();
$passPrefix = $this->fs->path(uniqid('pass-'));
touch($passPrefix);
$passes = [];
$totalPasses = $format->getPasses();
if (!$totalPasses) {
throw new InvalidArgumentException('Pass number should be a positive value.');
}
for ($i = 1; $i <= $totalPasses; ++$i) {
$pass = $commands;
if ($totalPasses > 1) {
$pass[] = '-pass';
$pass[] = $i;
$pass[] = '-passlogfile';
$pass[] = $passPrefix;
}
$pass[] = $outputPathfile;
$passes[] = $pass;
}
return $passes;
}
/**
* Return base part of command.
*
* @return array
*/
protected function basePartOfCommand(FormatInterface $format)
{
$commands = ['-y'];
// If the user passed some initial parameters
if ($format instanceof VideoInterface) {
if (null !== $format->getInitialParameters()) {
foreach ($format->getInitialParameters() as $initialParameter) {
$commands[] = $initialParameter;
}
}
}
$commands[] = '-i';
$commands[] = $this->pathfile;
return $commands;
}
}