--- a/avidemux_core/ADM_coreUtils/src/prefs.cpp
+++ b/avidemux_core/ADM_coreUtils/src/prefs.cpp
@@ -44,8 +44,8 @@
    const char *name2;
    ADM_paramType  type;
    const char *defaultValue;
-   float    min;
-   float    max;
+   double    min;
+   double    max;
 }optionDesc;
 
 #include "prefs2_pref.h"
--- a/avidemux_core/ADM_coreAudio/src/ADM_audioStreamBuffered.cpp
+++ b/avidemux_core/ADM_coreAudio/src/ADM_audioStreamBuffered.cpp
@@ -46,7 +46,7 @@
         // By construction, the error should be minimal
         if(newDts!=ADM_AUDIO_NO_DTS)
         {
-            if( abs(newDts-lastDts)>ADM_MAX_SKEW)
+            if( labs((int64_t)newDts-lastDts)>ADM_MAX_SKEW)
             {
                 printf("[AudioStream] Warning skew in dts =%"PRId64", \n",(int64_t)newDts-(uint64_t)lastDts);
                 printf("[AudioStream] Warning skew lastDts=%s \n",ADM_us2plain(lastDts));
--- a/avidemux_core/ADM_coreVideoCodec/src/ADM_ffmp43.cpp
+++ b/avidemux_core/ADM_coreVideoCodec/src/ADM_ffmp43.cpp
@@ -30,19 +30,19 @@
 #define WRAP_Open_Template(funcz,argz,display,codecid) \
 {\
 AVCodec *codec=funcz(argz);\
-if(!codec) {GUI_Error_HIG("Codec",QT_TR_NOOP("Internal error finding codec"display));ADM_assert(0);} \
+if(!codec) {GUI_Error_HIG("Codec",QT_TR_NOOP("Internal error finding codec" display));ADM_assert(0);} \
   codecId=codecid; \
   _context->workaround_bugs=1*FF_BUG_AUTODETECT +0*FF_BUG_NO_PADDING; \
   _context->error_concealment=3; \
   if (avcodec_open(_context, codec) < 0)  \
                       { \
-                                        printf("[lavc] Decoder init: "display" video decoder failed!\n"); \
-                                        GUI_Error_HIG("Codec","Internal error opening "display); \
+                                        printf("[lavc] Decoder init: " display " video decoder failed!\n"); \
+                                        GUI_Error_HIG("Codec","Internal error opening " display); \
                                         ADM_assert(0); \
                                 } \
                                 else \
                                 { \
-                                        printf("[lavc] Decoder init: "display" video decoder initialized! (%s)\n",codec->long_name); \
+                                        printf("[lavc] Decoder init: " display " video decoder initialized! (%s)\n",codec->long_name); \
                                 } \
 }