private function createIntermediaries()
{
//generate intermediary file
$ts = time() . rand(0, 1000);
$soxClass = "Media\\Driver\\Drivers\\SoxShell";
if (!$soxClass::installed()) {
throw new \Exception("Sox needs to be installed");
}
//Convert everything to 48k, so we upscale and downscale
//This is on purpose.
//Transform into a wav file
foreach ($this->getDrivers() as $driver) {
if ($this->extension == "wav" && $driver == "AsteriskShell") {
continue;
//just dont allow it
}
$class = "Media\\Driver\\Drivers\\" . $driver;
if ($class::installed() && $class::isCodecSupported($this->extension, "in")) {
$d = new $class($this->track, $this->extension, $this->mime, 48000, 1, 16);
$d->convert($this->tempDir . "/temp." . $ts . ".wav", "wav", "audio/x-wav");
$intermediary['wav']['path'] = $this->tempDir . "/temp." . $ts . ".wav";
$intermediary['wav']['extension'] = "wav";
$intermediary['wav']['mime'] = "audio/x-wav";
break;
}
}
if (!isset($intermediary['wav']['path']) || !file_exists($intermediary['wav']['path'])) {
throw new \Exception(sprintf(_("Unable to find an intermediary converter for %s"), $this->track));
}
//Asterisk 11 should support sln48 but it doesnt, it says it does but then complains
//It might be a bug, regardless this is fixed in 13 people should just use it
$ver = \FreePBX::Config()->get("ASTVERSION");
if (version_compare_freepbx($ver, "13.0", "ge") && \Media\Driver\Drivers\AsteriskShell::isCodecSupported("sln48", "in")) {
$type = "sln48";
$samplerate = 48000;
} elseif (\Media\Driver\Drivers\AsteriskShell::isCodecSupported("sln16", "in")) {
$type = "sln16";
$samplerate = 16000;
} else {
$type = "wav16";
$samplerate = 16000;
}
$nt = \notifications::create();
if (version_compare_freepbx($ver, "13.0", "ge") && !\Media\Driver\Drivers\AsteriskShell::isCodecSupported("sln48", "in")) {
//something is wacky here
$nt->add_warning("FRAMEWORK", "UNSUPPORTED_SLN48", _("The file format sln48 is not supported on your system"), _("The file format sln48 is not supported by Asterisk when it should be. Audio conversion quality will be limited to 16k instead of 48k"));
} else {
$nt->delete("FRAMEWORK", "UNSUPPORTED_SLN48");
}
//Now transform into a raw audio file
$d = new $soxClass($intermediary['wav']['path'], $intermediary['wav']['extension'], $intermediary['wav']['mime'], $samplerate, 1, 16);
$d->convert($this->tempDir . "/temp." . $ts . "." . $type, $type, "audio/x-raw");
$intermediary['sln']['path'] = $this->tempDir . "/temp." . $ts . "." . $type;
$intermediary['sln']['extension'] = $type;
$intermediary['sln']['mime'] = "audio/x-raw";
if (empty($intermediary)) {
throw new \Exception("No Driver found for " . $this->extension);
}
if (!file_exists($intermediary['wav']['path']) || !file_exists($intermediary['sln']['path'])) {
throw new \Exception("Intermediary files could not be created");
}
return $intermediary;
}
/**
* Get all supported formats
* @return array Array of supported audio formats
*/
public static function getSupportedFormats()
{
$formats = array("out" => array(), "in" => array());
if (Driver\Drivers\AsteriskShell::installed()) {
$formats = Driver\Drivers\AsteriskShell::supportedCodecs($formats);
}
if (Driver\Drivers\SoxShell::installed()) {
$formats = Driver\Drivers\SoxShell::supportedCodecs($formats);
}
if (Driver\Drivers\Mpg123Shell::installed()) {
$formats = Driver\Drivers\Mpg123Shell::supportedCodecs($formats);
}
if (Driver\Drivers\FfmpegShell::installed()) {
$formats = Driver\Drivers\FfmpegShell::supportedCodecs($formats);
}
if (Driver\Drivers\LameShell::installed()) {
$formats = Driver\Drivers\LameShell::supportedCodecs($formats);
}
return $formats;
}
/**
* Get all supported formats
* @return array Array of supported audio formats
*/
public static function getSupportedFormats($driver = null)
{
$formats = array("out" => array(), "in" => array());
if (empty($driver)) {
if (Driver\Drivers\AsteriskShell::installed()) {
$formats = Driver\Drivers\AsteriskShell::supportedCodecs($formats);
}
if (Driver\Drivers\SoxShell::installed()) {
$formats = Driver\Drivers\SoxShell::supportedCodecs($formats);
}
if (Driver\Drivers\Mpg123Shell::installed()) {
$formats = Driver\Drivers\Mpg123Shell::supportedCodecs($formats);
}
if (Driver\Drivers\FfmpegShell::installed()) {
$formats = Driver\Drivers\FfmpegShell::supportedCodecs($formats);
}
if (Driver\Drivers\LameShell::installed()) {
$formats = Driver\Drivers\LameShell::supportedCodecs($formats);
}
} else {
$class = 'Media\\Driver\\Drivers\\' . $driver;
if (class_exists($class) && $class::installed()) {
$formats = $class::supportedCodecs($formats);
} elseif (!class_exists($class)) {
throw new \Exception("Driver not avalible");
} else {
//not installed...
}
}
return $formats;
}