Initial implementation of BMediaEncoder

* People interested, please review!
* This is based on the patch from Fredrik Moden which was based on
the Oleg Krysenkov one.
* The original patch has been reworked by myself.
* Adapted the code to work with the new PluginManager API which
differently than before doesn't need to contact the media_server.

headers/os/media/MediaEncoder.h

@@ -8,6 +8,15 @@
 
 #include <MediaFormats.h>
 
+namespace BPrivate {
+	namespace media {
+		class Encoder;
+		class EncoderPlugin;
+	}
+}
+
+using namespace BPrivate::media;
+
 
 class BMediaEncoder {
 public:
@@ -65,6 +74,8 @@ private:
 			BMediaEncoder&		operator=(const BMediaEncoder& other);
 
 private:
+			status_t			_AttachToEncoder();
+
 	static	status_t			write_chunk(void* classPtr,
 									const void* buffer, size_t size,
 									media_encode_info* info);
@@ -73,7 +84,7 @@ private:
 			void				ReleaseEncoder();
 
 			uint32				_reserved_was_fEncoderMgr;
-			uint32				_reserved_was_fEncoder;
+			Encoder*			fEncoder;
 
 			int32				fEncoderID;
 			bool				fFormatValid;
@@ -84,7 +95,7 @@ private:
 };
 
 
-class BMediaBufferEncoder: public BMediaEncoder {
+class BMediaBufferEncoder : public BMediaEncoder {
 public:
 								BMediaBufferEncoder();
 								BMediaBufferEncoder(

headers/private/media/EncoderPlugin.h

@@ -1,5 +1,5 @@
 /*
- * Copyright 2009, Haiku Inc. All rights reserved.
+ * Copyright 2009-2015, Haiku Inc. All rights reserved.
  * Distributed under the terms of the MIT license.
  */
 #ifndef _ENCODER_PLUGIN_H
@@ -122,6 +122,9 @@ public:
 	virtual	Encoder*			NewEncoder(
 									const media_codec_info& codecInfo) = 0;
 
+	virtual	Encoder*			NewEncoder(
+									const media_format& format) = 0;
+
 	virtual	status_t			RegisterNextEncoder(int32* cookie,
 									media_codec_info* codecInfo,
 									media_format_family* formatFamily,

headers/private/media/PluginManager.h

@@ -1,6 +1,8 @@
-/* 
+/*
+ * Copyright 2015, Dario Casalinuovo. All rights reserved.
+ * Copyright 2012, Fredrik Modéen. All rights reserved.
  * Copyright 2004-2007, Marcus Overhagen. All rights reserved.
- * Distributed under the terms of the OpenBeOS License.
+ * Distributed under the terms of the MIT License.
  */
 #ifndef _PLUGIN_MANAGER_H
 #define _PLUGIN_MANAGER_H
@@ -51,6 +53,10 @@ public:
 			status_t			CreateEncoder(Encoder** encoder,
 									const media_codec_info* codecInfo,
 									uint32 flags);
+
+			status_t			CreateEncoder(Encoder** encoder,
+									const media_format& format);
+
 			void				DestroyEncoder(Encoder* encoder);
 	
 private: