- let all video players respect the SoundEnabled setting.

Fixes #164.

source/core/gamecontrol.h

@@ -82,7 +82,7 @@ extern int nomusic;
 extern bool nosound;
 inline bool MusicEnabled()
 {
-	return !nomusic;
+	return mus_enabled && !nomusic;
 }
 
 inline bool SoundEnabled()

source/core/movie/playmve.cpp

@@ -110,10 +110,10 @@ static bool StreamCallbackFunc(SoundStream* stream, void* buff, int len, void* u
     return true;
 }
 
-InterplayDecoder::InterplayDecoder()
+InterplayDecoder::InterplayDecoder(bool soundenabled)
 {
     bIsPlaying = false;
-    bAudioStarted = false;
+    bAudioStarted = !soundenabled;  // This prevents the stream from getting created
 
     nWidth  = 0;
     nHeight = 0;

source/core/movie/playmve.h

@@ -98,7 +98,7 @@ public:
         kAudioBlocks    = 20 // alloc a lot of blocks - need to store lots of audio data before video frames start.
     };
 
-    InterplayDecoder();
+    InterplayDecoder(bool soundenabled);
     ~InterplayDecoder();
 
     bool Open(FileReader &fr);

source/core/screenjob.cpp

@@ -194,7 +194,7 @@ class DMvePlayer : public DScreenJob
 public:
 	bool isvalid() { return !failed; }
 
-	DMvePlayer(FileReader& fr)
+	DMvePlayer(FileReader& fr) : decoder(SoundEnabled())
 	{
 		failed = !decoder.Open(fr);
 	}
@@ -302,7 +302,7 @@ public:
 					int sound = animSnd[i].soundnum;
 					if (sound == -1)
 						soundEngine->StopAllChannels();
-					else
+					else if (SoundEnabled())
 						soundEngine->StartSound(SOURCE_None, nullptr, nullptr, CHAN_AUTO, CHANF_UI, sound, 1.f, ATTN_NONE);
 				}
 			}