Merge pull request #36225 from Jachhj-sc/patch-1

Add check config.php for ffmpeg_path in PreviewManager.php. fix for snap no video preview

config/config.sample.php

@@ -1190,7 +1190,14 @@ $CONFIG = [
 'preview_office_cl_parameters' =>
 	' --headless --nologo --nofirststartwizard --invisible --norestore '.
 	'--convert-to png --outdir ',
-
+	
+/**
+ * custom path for ffmpeg binary
+ * 
+ * Defaults to ``null`` and falls back to searching ``avconv`` and ``ffmpeg`` in the configured ``PATH`` environment
+ */
+'preview_ffmpeg_path' => '/usr/bin/ffmpeg',	
+	
 /**
  * Set the URL of the Imaginary service to send image previews to.
  * Also requires the ``OC\Preview\Imaginary`` provider to be enabled.

lib/private/PreviewManager.php

@@ -417,11 +417,15 @@ class PreviewManager implements IPreview {
 
 		// Video requires avconv or ffmpeg
 		if (in_array(Preview\Movie::class, $this->getEnabledDefaultProvider())) {
-			$movieBinary = $this->binaryFinder->findBinaryPath('avconv');
+			$movieBinary = $this->config->getSystemValue('preview_ffmpeg_path', null);
 			if (!is_string($movieBinary)) {
-				$movieBinary = $this->binaryFinder->findBinaryPath('ffmpeg');
+				$movieBinary = $this->binaryFinder->findBinaryPath('avconv');
+				if (!is_string($movieBinary)) {
+					$movieBinary = $this->binaryFinder->findBinaryPath('ffmpeg');
+				}
 			}
 
+
 			if (is_string($movieBinary)) {
 				$this->registerCoreProvider(Preview\Movie::class, '/video\/.*/', ["movieBinary" => $movieBinary]);
 			}