code: Fix incorrect behavior for encoder::ffmpeg

As we previously relied on an additional function call, we should now merge this call into the constructor.

source/encoders/encoder-ffmpeg.cpp

@@ -1165,15 +1165,7 @@ ffmpeg_manager::ffmpeg_manager() : _factories(), _handlers(), _debug_handler()
 #ifdef ENABLE_ENCODER_FFMPEG_DNXHR
 	register_handler("dnxhd", ::std::make_shared<handler::dnxhd_handler>());
 #endif
-}
-
-ffmpeg_manager::~ffmpeg_manager()
-{
-	_factories.clear();
-}
-
-void ffmpeg_manager::register_encoders()
-{
+
 	// Encoders
 	void* iterator = nullptr;
 	for (const AVCodec* codec = av_codec_iterate(&iterator); codec != nullptr; codec = av_codec_iterate(&iterator)) {
@@ -1191,6 +1183,11 @@ void ffmpeg_manager::register_encoders()
 	}
 }
 
+ffmpeg_manager::~ffmpeg_manager()
+{
+	_factories.clear();
+}
+
 void ffmpeg_manager::register_handler(std::string codec, std::shared_ptr<handler::handler> handler)
 {
 	_handlers.emplace(codec, handler);

source/encoders/encoder-ffmpeg.hpp

@@ -147,19 +147,13 @@ namespace streamfx::encoder::ffmpeg {
 		ffmpeg_manager();
 		~ffmpeg_manager();
 
-		void register_encoders();
-
 		void register_handler(std::string codec, std::shared_ptr<handler::handler> handler);
 
 		std::shared_ptr<handler::handler> get_handler(std::string codec);
 
 		bool has_handler(std::string_view codec);
 
 		public: // Singleton
-		static void initialize();
-
-		static void finalize();
-
 		static std::shared_ptr<ffmpeg_manager> instance();
 	};
 } // namespace streamfx::encoder::ffmpeg