Fix mplayer build error with png by disabling png support
Fix mplayer build error with png by disabling png support

gasinger/sagetv,gasinger/sagetv,google/sagetv,JREkiwi/sagetv,JREkiwi/sagetv,google/sagetv,google/sagetv,jusjoken/sagetv,google/sagetv,JREkiwi/sagetv,jusjoken/sagetv,JREkiwi/sagetv,gasinger/sagetv,jusjoken/sagetv,jusjoken/sagetv,gasinger/sagetv