Always use our own exception tree

src/av/AvInfo.cpp

@@ -36,7 +36,7 @@ static std::string averror_to_string(int error)
 }
 
 MediaFileException::MediaFileException(int avError)
-: LmsException("MediaFileException: " + averror_to_string(avError))
+: AvException("MediaFileException: " + averror_to_string(avError))
 {
 }
 

src/av/AvInfo.hpp

@@ -57,7 +57,13 @@ struct StreamInfo
 	std::size_t     bitrate;
 };
 
-class MediaFileException : public LmsException
+class AvException : public LmsException
+{
+	public:
+		AvException(const std::string& msg) : LmsException(msg) {}
+};
+
+class MediaFileException : public AvException
 {
 	public:
 		MediaFileException(int avError);

src/av/AvTranscoder.cpp

@@ -52,7 +52,7 @@ std::string encodingToMimetype(Encoding encoding)
 			return encodingInfo.mimetype;
 	}
 
-	throw std::logic_error("encoding_to_mimetype failed!");
+	throw AvException("Invalid encoding");
 }
 
 int encodingToInt(Encoding encoding)
@@ -63,7 +63,7 @@ int encodingToInt(Encoding encoding)
 			return encodingInfo.id;
 	}
 
-	throw std::logic_error("encoding_to_int failed!");
+	throw AvException("Invalid encoding");
 }
 
 Encoding encodingFromInt(int encodingId)
@@ -74,7 +74,7 @@ Encoding encodingFromInt(int encodingId)
 			return encodingInfo.encoding;
 	}
 
-	throw std::logic_error("encoding_from_int failed!");
+	throw AvException("Invalid encodingId");
 }
 
 // TODO, parametrize?
@@ -104,7 +104,7 @@ Transcoder::init()
 	if (!avConvPath.empty())
 		LMS_LOG(TRANSCODE, INFO) << "Using transcoder " << avConvPath.string();
 	else
-		throw std::runtime_error("Cannot find any transcoder binary!");
+		throw AvException("Cannot find any transcoder binary!");
 }
 
 Transcoder::Transcoder(boost::filesystem::path filePath, TranscodeParameters parameters)