This guarantees that people who use theoraenc without modifying any
properties will end up with a reasonably good quality output.
48 is also the default of the encoder_example application shipped with
libtheora.
#define THEORA_DEF_CENTER TRUE
#define THEORA_DEF_BORDER BORDER_BLACK
#define THEORA_DEF_BITRATE 0
-#define THEORA_DEF_QUALITY 16
+#define THEORA_DEF_QUALITY 48
#define THEORA_DEF_QUICK TRUE
#define THEORA_DEF_KEYFRAME_AUTO TRUE
#define THEORA_DEF_KEYFRAME_FREQ 64