ffmpeg video recording files as ogg

composer.json

@@ -12,7 +12,8 @@
 	],
 	"require": {
 		"php": "^8.1 || ^8.2 || ^8.3",
-		"bamarni/composer-bin-plugin": "^1.8"
+		"bamarni/composer-bin-plugin": "^1.8",
+		"php-ffmpeg/php-ffmpeg": "^1.1"
 	},
 	"scripts": {
 		"lint": "find . -name \\*.php -not -path './vendor*' -print0 | xargs -0 -n1 php -l",

lib/Service/OpenAiAPIService.php

@@ -28,6 +28,8 @@
 use OCP\TaskProcessing\ShapeEnumValue;
 use Psr\Log\LoggerInterface;
 use RuntimeException;
+use FFMpeg\FFMpeg;
+use FFMpeg\Format\Audio\Opus;
 
 /**
  * Service to make requests to OpenAI/LocalAI REST API
@@ -602,13 +604,42 @@ public function transcribeFile(
 		bool $translate = false,
 		string $model = Application::DEFAULT_MODEL_ID,
 	): string {
+
+		$inputFilePath = '/mnt/ncdata' . $file->getPath();
+		$tempFilePath = preg_replace('/\.webm$/', '.ogg', $inputFilePath);
+
+		if (str_ends_with($file->getName(), '.webm')) {
+			try {
+				$ffmpeg = FFMpeg::create();
+				$audio = $ffmpeg->open($inputFilePath);
+
+				$format = new Opus();
+				$format->setAudioChannels(1)
+					   ->setAudioKiloBitrate(12)
+					   ->setApplication('voip');
+
+				$audio->save($format, $tempFilePath);
+
+				$fileContent = file_get_contents($tempFilePath);
+			} catch (\Exception $e) {
+				$this->logger->error('FFmpeg encoding failed for file: ' . $inputFilePath . '. Error: ' . $e->getMessage());
+				throw new Exception($this->l10n->t('Could not encode audio file.'), Http::STATUS_INTERNAL_SERVER_ERROR);
+			}
+		} else {
+			$fileContent = $file->getContent();
+		}
+
 		try {
-			$transcriptionResponse = $this->transcribe($userId, $file->getContent(), $translate, $model);
+			$transcriptionResponse = $this->transcribe($userId, $fileContent, $translate, $model);
 		} catch (NotPermittedException|LockedException|GenericFileException $e) {
 			$this->logger->warning('Could not read audio file: ' . $file->getPath() . '. Error: ' . $e->getMessage(), ['app' => Application::APP_ID]);
 			throw new Exception($this->l10n->t('Could not read audio file.'), Http::STATUS_INTERNAL_SERVER_ERROR);
 		}
-
+
+		if (file_exists($tempFilePath)) {
+			unlink($tempFilePath);
+		}
+
 		return $transcriptionResponse;
 	}