Fix includes and initialization for GDNative Videodecoder

Fixes warnings and a crash when running the destructor with an
uninitialized pcm pointer.

modules/gdnative/videodecoder/SCsub

@@ -1,8 +1,5 @@
 #!/usr/bin/env python
 
-import os
-import methods
-
 Import('env')
 Import('env_modules')
 

modules/gdnative/videodecoder/register_types.cpp

@@ -28,7 +28,9 @@
 /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
 /*************************************************************************/
 
-#include "class_db.h"
+#include "register_types.h"
+
+#include "core/class_db.h"
 #include "resource_importer_av_gdnative.h"
 #include "video_stream_gdnative.h"
 
@@ -41,5 +43,6 @@ void register_videodecoder_types() {
 #endif
 	ClassDB::register_class<VideoStreamGDNative>();
 }
+
 void unregister_videodecoder_types() {
 }

modules/gdnative/videodecoder/resource_importer_av_gdnative.cpp

@@ -30,8 +30,8 @@
 
 #include "resource_importer_av_gdnative.h"
 
-#include "io/resource_saver.h"
-#include "os/file_access.h"
+#include "core/io/resource_saver.h"
+#include "core/os/file_access.h"
 #include "scene/resources/texture.h"
 
 String ResourceImporterAVGDNative::get_importer_name() const {

modules/gdnative/videodecoder/resource_importer_av_gdnative.h

@@ -31,9 +31,8 @@
 #ifndef RESOURCE_IMPORTER_AV_GDNATIVE_H
 #define RESOURCE_IMPORTER_AV_GDNATIVE_H
 
-#include "video_stream_gdnative.h"
-
 #include "core/io/resource_import.h"
+#include "video_stream_gdnative.h"
 
 class ResourceImporterAVGDNative : public ResourceImporter {
 	GDCLASS(ResourceImporterAVGDNative, ResourceImporter)

modules/gdnative/videodecoder/video_stream_gdnative.cpp

@@ -29,13 +29,16 @@
 /*************************************************************************/
 
 #include "video_stream_gdnative.h"
-#include <project_settings.h>
-#include <servers/audio_server.h>
+
+#include "core/project_settings.h"
+#include "servers/audio_server.h"
 
 VideoDecoderServer *VideoDecoderServer::instance = NULL;
 
 static VideoDecoderServer decoder_server;
 
+const int AUX_BUFFER_SIZE = 1024; // Buffer 1024 samples.
+
 // NOTE: Callbacks for the GDNative libraries.
 extern "C" {
 godot_int GDAPI godot_videodecoder_file_read(void *ptr, uint8_t *buf, int buf_size) {
@@ -184,12 +187,20 @@ void VideoStreamPlaybackGDNative::update_texture() {
 
 VideoStreamPlaybackGDNative::VideoStreamPlaybackGDNative() :
 		texture(Ref<ImageTexture>(memnew(ImageTexture))),
-		time(0),
+		playing(false),
+		paused(false),
 		mix_udata(NULL),
 		mix_callback(NULL),
 		num_channels(-1),
+		time(0),
 		mix_rate(0),
-		playing(false) {}
+		delay_compensation(0),
+		pcm(NULL),
+		pcm_write_idx(0),
+		samples_decoded(0),
+		file(NULL),
+		interface(NULL),
+		data_struct(NULL) {}
 
 VideoStreamPlaybackGDNative::~VideoStreamPlaybackGDNative() {
 	cleanup();
@@ -198,7 +209,8 @@ VideoStreamPlaybackGDNative::~VideoStreamPlaybackGDNative() {
 void VideoStreamPlaybackGDNative::cleanup() {
 	if (data_struct)
 		interface->destructor(data_struct);
-	memfree(pcm);
+	if (pcm)
+		memfree(pcm);
 	pcm = NULL;
 	time = 0;
 	num_channels = -1;

modules/gdnative/videodecoder/video_stream_gdnative.h

@@ -31,15 +31,15 @@
 #ifndef VIDEO_STREAM_GDNATIVE_H
 #define VIDEO_STREAM_GDNATIVE_H
 
-#include <modules/gdnative/gdnative.h>
-#include <os/file_access.h>
-#include <scene/resources/texture.h>
-#include <scene/resources/video_stream.h>
+#include "../gdnative.h"
+#include "core/os/file_access.h"
+#include "scene/resources/texture.h"
+#include "scene/resources/video_stream.h"
 
 struct VideoDecoderGDNative {
+	const godot_videodecoder_interface_gdnative *interface;
 	String plugin_name;
 	Vector<String> supported_extensions;
-	const godot_videodecoder_interface_gdnative *interface;
 
 	VideoDecoderGDNative() :
 			interface(NULL),
@@ -124,7 +124,6 @@ class VideoStreamPlaybackGDNative : public VideoStreamPlayback {
 	int mix_rate;
 	double delay_compensation;
 
-	const int AUX_BUFFER_SIZE = 1024; // Buffer 1024 samples.
 	float *pcm;
 	int pcm_write_idx;
 	int samples_decoded;
@@ -135,10 +134,10 @@ class VideoStreamPlaybackGDNative : public VideoStreamPlayback {
 protected:
 	String file_name;
 
-	FileAccess *file = NULL;
+	FileAccess *file;
 
-	const godot_videodecoder_interface_gdnative *interface = NULL;
-	void *data_struct = NULL;
+	const godot_videodecoder_interface_gdnative *interface;
+	void *data_struct;
 
 public:
 	VideoStreamPlaybackGDNative();