--- a/hedgewars/uVideoRec.pas	Tue Nov 10 18:16:35 2015 +0100
+++ b/hedgewars/uVideoRec.pas	Tue Nov 10 20:43:13 2015 +0100
@@ -1,6 +1,6 @@
 (*
  * Hedgewars, a free turn based strategy game
- * Copyright (c) 2004-2013 Andrey Korotaev <unC0Rr@gmail.com>
+ * Copyright (c) 2004-2015 Andrey Korotaev <unC0Rr@gmail.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -13,7 +13,7 @@
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  *)
 
 
@@ -48,17 +48,17 @@
 procedure freeModule;
 
 implementation
-uses uVariables, uUtils, GLunit, SDLh, SysUtils, uIO, uMisc, uTypes;
+uses uVariables, uUtils, GLunit, SDLh, SysUtils, uIO, uMisc, uTypes, uDebug;
 
 type TAddFileLogRaw = procedure (s: pchar); cdecl;
 const AvwrapperLibName = 'libavwrapper';
 
-procedure AVWrapper_Init(
+function AVWrapper_Init(
               AddLog: TAddFileLogRaw;
               filename, desc, soundFile, format, vcodec, acodec: PChar;
-              width, height, framerateNum, framerateDen, vquality: LongInt); cdecl; external AvwrapperLibName;
-procedure AVWrapper_Close; cdecl; external AvwrapperLibName;
-procedure AVWrapper_WriteFrame( pY, pCb, pCr: PByte ); cdecl; external AvwrapperLibName;
+              width, height, framerateNum, framerateDen, vquality: LongInt): LongInt; cdecl; external AvwrapperLibName;
+function AVWrapper_Close: LongInt; cdecl; external AvwrapperLibName;
+function AVWrapper_WriteFrame( pY, pCb, pCr: PByte ): LongInt; cdecl; external AvwrapperLibName;
 
 type TFrame = record
                   realTicks: LongWord;
@@ -109,14 +109,16 @@
     filename:= UserPathPrefix + '/VideoTemp/' + RecPrefix;
     soundFilePath:= UserPathPrefix + '/VideoTemp/' + RecPrefix + '.sw';
 
-    AVWrapper_Init(@AddFileLogRaw
+    TryDo(AVWrapper_Init(@AddFileLogRaw
         , PChar(ansistring(filename))
         , PChar(ansistring(desc))
         , PChar(ansistring(soundFilePath))
         , PChar(ansistring(cAVFormat))
         , PChar(ansistring(cVideoCodec))
         , PChar(ansistring(cAudioCodec))
-        , cScreenWidth, cScreenHeight, cVideoFramerateNum, cVideoFramerateDen, cVideoQuality);
+        , cScreenWidth, cScreenHeight, cVideoFramerateNum, cVideoFramerateDen, cVideoQuality) >= 0,
+        'AVWrapper_Init failed',
+        true);
 
     numPixels:= cScreenWidth*cScreenHeight;
     YCbCr_Planes[0]:= GetMem(numPixels);
@@ -150,7 +152,8 @@
     FreeMem(YCbCr_Planes[2], numPixels div 4);
     FreeMem(RGB_Buffer, 4*numPixels);
     Close(cameraFile);
-    AVWrapper_Close();
+    if AVWrapper_Close() < 0 then
+        halt(-1);
     Erase(cameraFile);
     DeleteFile(soundFilePath);
     SendIPC(_S'v'); // inform frontend that we finished
@@ -185,7 +188,8 @@
             YCbCr_Planes[2][y*(cScreenWidth div 2) + x]:= Byte(128 + (( 7196*r - 6026*g - 1170*b) shr 16));
         end;
 
-    AVWrapper_WriteFrame(YCbCr_Planes[0], YCbCr_Planes[1], YCbCr_Planes[2]);
+    if AVWrapper_WriteFrame(YCbCr_Planes[0], YCbCr_Planes[1], YCbCr_Planes[2]) < 0 then
+        halt(-1);
 
     // inform frontend that we have encoded new frame
     s[0]:= #3;
@@ -235,7 +239,7 @@
     thumbpath:= '/VideoTemp/' + RecPrefix;
     AddFileLog('Saving thumbnail ' + thumbpath);
     k:= max(max(cScreenWidth, cScreenHeight) div 400, 1); // here 400 is minimum size of thumbnail
-    MakeScreenshot(thumbpath, k);
+    MakeScreenshot(thumbpath, k, 0);
     thumbnailSaved:= true;
 end;