desc!(video; "realvideo2", "Real Video 2"),
desc!(video; "realvideo3", "Real Video 3", CODEC_CAP_REORDER),
desc!(video; "realvideo4", "Real Video 4", CODEC_CAP_REORDER),
+ desc!(video; "realvideo6", "Real Video 6", CODEC_CAP_REORDER),
desc!(video; "clearvideo", "ClearVideo"),
desc!(video; "clearvideo_rm", "ClearVideo"),
desc!(audio; "ra14.4", "RealAudio 14.4"),