VIDEO: Handle Truemotion dimensions specially

Truemotion uses its own demuxer and seems to follow its own AVI rules. Work around it by coercing the video's dimensions to use the codec's internal dimensions.

image/codecs/codec.cpp

@@ -61,7 +61,7 @@ Codec *createBitmapCodec(uint32 tag, int width, int height, int bitsPerPixel) {
 #ifdef IMAGE_CODECS_TRUEMOTION1_H
 	case MKTAG('D','U','C','K'):
 	case MKTAG('d','u','c','k'):
-		return new TrueMotion1Decoder(width, height);
+		return new TrueMotion1Decoder();
 #endif
 #ifdef USE_MPEG2
 	case MKTAG('m','p','g','2'):