Create a static constructor for libav initialization.

README.md

@@ -12,16 +12,15 @@ official CMA and also offer some features missing in the original one.
 
 #### Implemented features missing in OpenCMA (Yifan Lu CLI application)
 * Metadata for PSP savedatas.
-* Basic metadata for single songs (album, artist, title).
-* Basic metadata for videos (duration, dimensions).
-* Basic metadata for photos (dimensions).
+* Basic metadata for single songs (album, artist, title, cover art).
+* Basic metadata for videos (duration, dimensions, thumbnail).
+* Basic metadata for photos (dimensions, thumbnails).
 * Easy wireless pairing (show PIN to the user when a Vita is detected).
 * Ability to restart the connection if the Vita is reconnected (on test).
-* Ability to change the connection mode (usb/wireless) on the fly (on test).
 
 #### TODO:
 * Fix remaining bugs with thread synchronizations.
-* Implement thumbnails for videos and album art for music.
+* Remove wireless/usb switch and allow both to run.
 * Folder categories for music/videos.
 * SQLite backend for database.
 * Fix wireless streaming for music/videos.
@@ -40,7 +39,7 @@ using the wireless streaming feature.
 
 * [VitaMTP](https://github.com/yifanlu/VitaMTP)
 
-* [MediaInfo](http://mediaarea.net/en/MediaInfo)
+* [Libav](http://www.libav.org/)
 
 
 #### Where do I get the source code?

avdecoder.cpp

@@ -4,6 +4,8 @@
 #include <QFile>
 #include <QSettings>
 
+AVDecoder::AvInit init;
+
 AVDecoder::AVDecoder() :
     pFormatCtx(NULL)
 {
@@ -16,14 +18,8 @@ AVDecoder::~AVDecoder()
     }
 }
 
-void AVDecoder::init()
-{
-    av_register_all();
-}
-
 bool AVDecoder::open(const QString filename)
 {
-
     if(avformat_open_input(&pFormatCtx, QFile::encodeName(filename).constData(), NULL, NULL) != 0) {
         return false;
     }

avdecoder.h

@@ -24,7 +24,16 @@ public:
     void getVideoMetadata(metadata_t &metadata);
     void close();
 
-    static void init();
+    class AvInit
+    {
+    public:
+         AvInit()
+         {
+             av_register_all();
+         }
+    };
+
+    static AvInit init;
 
 private:
     void AVFrameToQImage(AVFrame &frame, QImage &image, int width, int height);

cmaclient.cpp

@@ -40,7 +40,6 @@ CmaClient::CmaClient(QObject *parent) :
     BaseWorker(parent)
 {
     this_object = this;
-    AVDecoder::init();
 }
 
 int CmaClient::deviceRegistered(const char *deviceid)