diff --git a/README.md b/README.md
index 5ce45d9..66059d1 100644
--- a/README.md
+++ b/README.md
@@ -4,4 +4,10 @@
 
 Micsig provide an Android apk for remote control of their networked scopes. I noticed video compression and delved into reverse engineering the protocol.
 
+Build requirements (Ubuntu):
+`sudo apt install libavcodec-dev libswscale-dev qtcreator qtbase5-dev qt5-qmake qtmultimedia5-dev qtdeclarative5-dev cmake icoutils`
+
+Runtime requirements (Ubuntu):
+`sudo apt install qml-module-qtmultimedia qml-module-qt-labs-settings qml-module-qtquick-layouts qml-module-qtquick-controls qml-module-qtquick-controls2`
+
 ![Screenshot](https://github.com/GothAck/oscope/blob/master/docs/screen-scope.png?raw=true)
diff --git a/cmake/Icons.cmake b/cmake/Icons.cmake
index e26f90f..6c8d877 100644
--- a/cmake/Icons.cmake
+++ b/cmake/Icons.cmake
@@ -4,7 +4,7 @@ function(icons)
   foreach(res IN LISTS ARGN)
     add_custom_target(icon_${res}
         COMMAND mkdir -p icons/hicolor/${res}x${res}
-        COMMAND inkscape -z -e icons/hicolor/${res}x${res}/oscope.png -w ${res} -h ${res} ${CMAKE_CURRENT_SOURCE_DIR}/resources/oscope.svg
+        COMMAND inkscape -z --export-type=png --export-filename=icons/hicolor/${res}x${res}/oscope.png -w ${res} -h ${res} ${CMAKE_CURRENT_SOURCE_DIR}/resources/oscope.svg
         BYPRODUCTS ${CMAKE_CURRENT_BINARY_DIR}/icons/hicolor/${res}x${res}/oscope.png
     )
     list(APPEND icon_targets "icon_${res}")
diff --git a/src/socket.cpp b/src/socket.cpp
index 233dc43..154bef3 100644
--- a/src/socket.cpp
+++ b/src/socket.cpp
@@ -12,9 +12,6 @@ Socket::Socket(Scope *parent) :
     _buffer(new QBuffer(this))
     {
         _buffer->open(QBuffer::WriteOnly);
-        memset(&pic_raw, 0, sizeof(pic_raw));
-
-        avcodec_register_all();
         pkt = av_packet_alloc();
         codec = avcodec_find_decoder(AV_CODEC_ID_H264);
         parser = av_parser_init(codec->id);
@@ -111,6 +108,8 @@ bool Socket::decode() {
         vidFrame->unmap();
         emit frameAvailable(vidFrame);
     }
+
+    return true;
 }
 
 bool Socket::onFrame(QByteArray frame) {
diff --git a/src/socket.hpp b/src/socket.hpp
index a13b083..3285aa5 100644
--- a/src/socket.hpp
+++ b/src/socket.hpp
@@ -54,7 +54,6 @@ private slots:
     AVCodecParserContext *parser = nullptr;
     AVCodecContext *c= nullptr;
     AVFrame *picture = nullptr;
-    AVPicture pic_raw;
     AVPacket *pkt = nullptr;
 
     int num_nals = 0;