V4L2_CID_MPEG_VIDEO_MPEG4_B_FRAME_QP
case V4L2_CID_MPEG_VIDEO_MPEG4_B_FRAME_QP:
.id = V4L2_CID_MPEG_VIDEO_MPEG4_B_FRAME_QP,
case V4L2_CID_MPEG_VIDEO_MPEG4_B_FRAME_QP: return "MPEG4 B-Frame QP Value";