MPP软件包是否一定需要屏幕，无屏的监控设备可以使用吗？

[dingxm]

在没有屏幕的板子上使用mpp的sample virvi2ven2mux，该用例是摄像头到编码器然后生成mp4的范例，但是看log会调用disp相关的接口，最后segment fault了

I0101 00:12:50.473907 1167 sample_vi2venc2muxer.c:1291] crea te venc channel[0] success!
I0101 00:12:50.474057 1167 sample_vi2venc2muxer.c:1324] set venc framerate: src 20fps, dst 20fps
I0101 00:12:50.474190 1167 VideoEnc_Component.c:3961] vencChn[0] set new framerate:20
E0101 00:12:50.474366 1167 glog_helper.cpp:16] *** Aborted at 770 (unix time) t ry “date -d @770” if you are using GNU date ***
E0101 00:12:50.474948 1167 glog_helper.cpp:16] PC: @ 0x0 (unknown)
[ 760.478099] 5000000.disp supply vcc-pd not found, using dummy regulator
[ 760.485768] 5000000.disp supply vcc-lcd not found, using dummy regulator
[ 760.997136] [DISP] de_fcm_set_para,line:491:
[ 761.001785] fcm lut 0 not find, auto retry after init
[ 761.007858] [DISP] de_fcm_set_para,line:491:
[ 761.012525] fcm lut 0 not find, auto retry after init
Segmentation fault (core dumped)

root@TinaLinux:/mnt/extsd# gdb -c coredump-isp_thread-1142-11-6017
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warning: Can’t open file /dmabuf (deleted) during file-backed mapping note processing
[New LWP 1143]
[New LWP 1144]
[New LWP 1145]
[New LWP 1142]
[New LWP 1146]
Core was generated by `./sample_virvi2venc2muxer -path sample_vi2venc2muxer.conf’.
Program terminated with signal SIGSEGV, Segmentation fault.
–Type for more, q to quit, c to continue without paging–
#0 0xb6f13ce0 in ?? ()
[Current thread is 1 (LWP 1143)]
(gdb)

[junchao82]

我也遇到了同样的问题
看这个贴子
https://bbs.aw-ol.com/topic/3749/sample_vi2venc2muxer-在v851s上崩溃