dan/ffmpeg-mappable-media
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Proper command escaping

Browse source
This commit is contained in:
Romain Neutron 2012-10-08 14:20:59 +02:00
commit 70ba5000c1
5 changed files with 96 additions and 74 deletions
Download patch file Download diff file Expand all files Collapse all files

126
src/FFMpeg/FFMpeg.php
View file

@ -17,6 +17,7 @@ use FFMpeg\Exception\RuntimeException;
use FFMpeg\Format\Audio;
use FFMpeg\Format\Video;
use Symfony\Component\Process\Process;
use Symfony\Component\Process\ProcessBuilder;
/**
* FFMpeg driver
@ -68,7 +69,7 @@ class FFMpeg extends Binary
*/
public function open($pathfile)
{
if ( ! file_exists($pathfile)) {
if (!file_exists($pathfile)) {
$this->logger->addError(sprintf('FFmpeg failed to open %s', $pathfile));
throw new InvalidArgumentException(sprintf('File %s does not exists', $pathfile));
@ -118,18 +119,20 @@ class FFMpeg extends Binary
*/
public function extractImage($time, $output)
{
if ( ! $this->pathfile) {
if (!$this->pathfile) {
throw new LogicException('No file open');
}
$cmd = $this->binary
. ' -i ' . escapeshellarg($this->pathfile)
. ' -vframes 1 -ss ' . $time
. ' -f image2 ' . escapeshellarg($output);
$builder = ProcessBuilder::create(array(
$this->binary,
'-i', $this->pathfile,
'-vframes', '1', '-ss', $time,
'-f', 'image2', $output
));
$this->logger->addInfo(sprintf('FFmpeg executes command %s', $cmd));
$process = $builder->getProcess();
$process = new Process($cmd);
$this->logger->addInfo(sprintf('FFmpeg executes command %s', $process->getCommandline()));
try {
$process->run();
@ -137,7 +140,7 @@ class FFMpeg extends Binary
}
if ( ! $process->isSuccessful()) {
if (!$process->isSuccessful()) {
$this->logger->addError(sprintf('FFmpeg command failed : %s', $process->getErrorOutput()));
$this->cleanupTemporaryFile($output);
@ -161,7 +164,7 @@ class FFMpeg extends Binary
*/
public function encode(Audio $format, $outputPathfile)
{
if ( ! $this->pathfile) {
if (!$this->pathfile) {
throw new LogicException('No file open');
}
@ -188,33 +191,40 @@ class FFMpeg extends Binary
*/
protected function encodeAudio(Audio $format, $outputPathfile)
{
$cmd = $this->binary
. ' -y -i '
. escapeshellarg($this->pathfile)
. ' ' . $format->getExtraParams()
. ' -threads ' . $this->threads
. ' -ab ' . $format->getKiloBitrate() . 'k '
. ' ' . escapeshellarg($outputPathfile);
$builder = ProcessBuilder::create(array(
$this->binary,
'-y', '-i',
$this->pathfile,
'-threads', $this->threads,
'-ab', $format->getKiloBitrate() . 'k ',
));
foreach ($format->getExtraParams() as $parameter) {
$builder->add($parameter);
}
if ($format instanceof Audio\Transcodable) {
$cmd .= ' -acodec ' . $format->getAudioCodec();
$builder->add('-acodec')->add($format->getAudioCodec());
}
if ($format instanceof Audio\Resamplable) {
$cmd .= ' -ac 2 -ar ' . $format->getAudioSampleRate();
$builder->add('-ac')->add(2)->add('-ar')->add($format->getAudioSampleRate());
}
$process = new Process($cmd);
$builder->add($outputPathfile);
$this->logger->addInfo(sprintf('FFmpeg executes command %s', $cmd));
$process = $builder->getProcess();
$this->logger->addInfo(sprintf('FFmpeg executes command %s', $process->getCommandLine()));
echo $process->getCommandLine() . "\n\n";
try {
$process->run();
} catch (\RuntimeException $e) {
}
if ( ! $process->isSuccessful()) {
if (!$process->isSuccessful()) {
$this->logger->addInfo(sprintf('FFmpeg command failed'));
throw new RuntimeException(sprintf('Encoding failed : %s', $process->getErrorOutput()));
}
@ -234,15 +244,17 @@ class FFMpeg extends Binary
*/
protected function encodeVideo(Video $format, $outputPathfile)
{
$cmd_part1 = $this->binary
. ' -y -i '
. escapeshellarg($this->pathfile) . ' '
. $format->getExtraParams() . ' ';
$builder = ProcessBuilder::create(array(
$this->binary, '-y', '-i',
$this->pathfile
));
$cmd_part2 = '';
foreach ($format->getExtraParams() as $parameter) {
$builder->add($parameter);
}
if ($format instanceof Video\Resizable) {
if ( ! $this->prober) {
if (!$this->prober) {
throw new LogicException('You must set a valid prober if you use a resizable format');
}
@ -275,54 +287,62 @@ class FFMpeg extends Binary
$width = $this->getMultiple($dimensions->getWidth(), 16);
$height = $this->getMultiple($dimensions->getHeight(), 16);
$cmd_part2 .= ' -s ' . $width . 'x' . $height;
$builder->add('-s')->add($width . 'x' . $height);
}
}
if ($format instanceof Video\Resamplable) {
$cmd_part2 .= ' -r ' . $format->getFrameRate();
$builder->add('-r')->add($format->getFrameRate());
/**
* @see http://sites.google.com/site/linuxencoding/x264-ffmpeg-mapping
*/
if ($format->supportBFrames()) {
$cmd_part2 .= ' -b_strategy 1 -bf 3 -g ' . $format->getGOPSize();
$builder->add('-b_strategy')
->add('1')
->add('-bf')
->add('3')
->add('-g')
->add($format->getGOPSize());
}
}
if ($format instanceof Video\Transcodable) {
$cmd_part2 .= ' -vcodec ' . $format->getVideoCodec();
$builder->add('-vcodec')->add($format->getVideoCodec());
}
$cmd_part2 .= ' -b ' . $format->getKiloBitrate() . 'k'
. ' -threads ' . $this->threads
. ' -refs 6 -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 '
. ' -ab 92k ';
$builder->add('-b')->add($format->getKiloBitrate() . 'k')
->add('-threads')->add($this->threads)
->add('-refs')->add('6')->add('-coder')->add('1')->add('-qmin')
->add('10')->add('-qmax')->add('51')
->add('-sc_threshold')->add('40')->add('-flags')->add('+loop')
->add('-cmp')->add('+chroma')
->add('-me_range')->add('16')->add('-subq')->add('7')
->add('-i_qfactor')->add('0.71')->add('-qcomp')->add('0.6')
->add('-qdiff')->add('4')
->add('-trellis')->add('1')->add('-qscale')->add('1')
->add('-ab')->add('92k');
if ($format instanceof Audio\Transcodable) {
$cmd_part2 .= '-acodec ' . $format->getAudioCodec();
$builder->add('-acodec')->add($format->getAudioCodec());
}
$tmpFile = new \SplFileInfo(tempnam(sys_get_temp_dir(), 'temp') . '.' . pathinfo($outputPathfile, PATHINFO_EXTENSION));
$passes = array();
$pass1 = $builder;
$pass2 = clone $builder;
$passes[] = $cmd_part1 . ' -pass 1 ' . $cmd_part2
. ' -an ' . escapeshellarg($tmpFile->getPathname());
$passes[] = $pass1
->add('-pass')->add('1')->add('-an')->add($tmpFile->getPathname())
->getProcess();
$passes[] = $pass2
->add('-pass')->add('2')->add('-ac')->add('2')
->add('-ar')->add('44100')->add($outputPathfile)
->getProcess();
$passes[] = $cmd_part1 . ' -pass 2 ' . $cmd_part2
. ' -ac 2 -ar 44100 ' . escapeshellarg($outputPathfile);
foreach ($passes as $process) {
$process = null;
foreach ($passes as $pass) {
$this->logger->addInfo(sprintf('FFmpeg executes command %s', $pass));
$process = new Process($pass);
$this->logger->addInfo(sprintf('FFmpeg executes command %s', $process->getCommandline()));
try {
$process->run();
@ -336,7 +356,7 @@ class FFMpeg extends Binary
$this->cleanupTemporaryFile(getcwd() . '/av2pass-0.log');
$this->cleanupTemporaryFile(getcwd() . '/ffmpeg2pass-0.log.mbtree');
if ( ! $process->isSuccessful()) {
if (!$process->isSuccessful()) {
$this->logger->addInfo(sprintf('FFmpeg command failed'));
throw new RuntimeException(sprintf('Encoding failed : %s', $process->getErrorOutput()));
}

25
src/FFMpeg/FFProbe.php
View file

@ -14,6 +14,7 @@ namespace FFMpeg;
use FFMpeg\Exception\InvalidArgumentException;
use FFMpeg\Exception\RuntimeException;
use Symfony\Component\Process\Process;
use Symfony\Component\Process\ProcessBuilder;
/**
* FFProbe driver
@ -38,9 +39,11 @@ class FFProbe extends Binary
throw new InvalidArgumentException($pathfile);
}
$cmd = $this->binary . ' ' . escapeshellarg($pathfile) . ' -show_format';
$builder = ProcessBuilder::create(array(
$this->binary, $pathfile, '-show_format'
));
$output = $this->executeProbe($cmd);
$output = $this->executeProbe($builder->getProcess());
$ret = array();
@ -84,9 +87,11 @@ class FFProbe extends Binary
throw new InvalidArgumentException($pathfile);
}
$cmd = $this->binary . ' ' . escapeshellarg($pathfile) . ' -show_streams';
$builder = ProcessBuilder::create(array(
$this->binary, $pathfile, '-show_streams'
));
$output = explode("\n", $this->executeProbe($cmd));
$output = explode("\n", $this->executeProbe($builder->getProcess()));
$ret = array();
$n = 0;
@ -123,28 +128,26 @@ class FFProbe extends Binary
/**
*
* @param string $command
* @param Process $process
* @return string
* @throws RuntimeException
*/
protected function executeProbe($command)
protected function executeProbe(Process $process)
{
$this->logger->addInfo(sprintf('FFprobe executes command %s', $command));
$this->logger->addInfo(sprintf('FFprobe executes command %s', $process->getCommandline()));
try {
$process = new Process($command);
$process->run();
} catch (\RuntimeException $e) {
$this->logger->addInfo('FFprobe command failed');
throw new RuntimeException(sprintf('Failed to run the given command %s', $command));
throw new RuntimeException(sprintf('Failed to run the given command %s', $process->getCommandline()));
}
if ( ! $process->isSuccessful()) {
$this->logger->addInfo('FFprobe command failed');
throw new RuntimeException(sprintf('Failed to probe %s', $command));
throw new RuntimeException(sprintf('Failed to probe %s', $process->getCommandline()));
}
$this->logger->addInfo('FFprobe command successful');

5
src/FFMpeg/Format/Audio.php
View file

@ -27,10 +27,9 @@ interface Audio
public function getKiloBitrate();
/**
* Give som extra parameters to add to ffmpeg commandline
* Parameters MUST be escaped
* Return an array of extra parameters to add to ffmpeg commandline
*
* @return string
* @return array()
*/
public function getExtraParams();

2
src/FFMpeg/Format/Audio/DefaultAudio.php
View file

@ -31,7 +31,7 @@ abstract class DefaultAudio implements Resamplable, Interactive
*/
public function getExtraParams()
{
return '';
return array();
}
/**

2
src/FFMpeg/Format/Video/WebM.php
View file

@ -34,7 +34,7 @@ class WebM extends DefaultVideo
*/
public function getExtraParams()
{
return '-f webm';
return array('-f', 'webm');
}
/**