基于DM642的视频图像与图形的叠加(支持PAL制和NTSC制)文件列表: 视频图像和图形叠加 ..................\evmdm642_vcapparamsNTSC.c ..................\evmdm642_vcapparamsPAL.c ..................\evmdm642_vdisparamsHD480P.c ..................\evmdm642_vdisparamsHD720P.c ..................\evmdm642_vdisparamsNTSC.c ..................\evmdm642_vdisparamsPAL.c ..................\loopback_main.c ..................\osdcfg_c.c ..................\tskOSD.c ..................\video_loopback.c……