HI3531 运行官方的sample_vdev 通过HDMI输出.h264流 显示器没反应

/test # ./sample_vdec
_invaild input! for examples:
/**/
usage : ./sample_vdec
index:
0: VDEC(H265 PLAYBACK)-VPSS-VO
1: VDEC(H264 PLAYBACK)-VPSS-VO
2: VDEC(H264 PREVIEW)-VPSS-VOPIP
3: VDEC(JPEG PLAYBACK)-VPSS-VO
intf_sync :
0: VO HDMI
1: VO BT1120
/**/
/test # ./sample_vdec 1 0
_sample_test:press ‘e’ to exit; ‘p’ to pause; ‘r’ to resume; ‘q’ to query; ‘s’ to step; ‘a’ to add; ‘d’ to sub!;
chn 0, stream file:3840x2160_8bit.h264, userbufsize: 12441600

程序卡在这里不动，显示器显示HDMI
希望前辈们可以帮忙答疑解惑，谢谢！