创建mpp解码器实例失败

mpi: mpp version: Without VCS info
hal_h264d_api: Assertion vcodec_type & ((0x00000200) | (0x00000001) | (0x00000002)) failed at hal_h264d_init:104
hal_h264d_api: hal_h264d_init hard mode error, value=0
hal_h264d_api: Assertion 0 failed at hal_h264d_init:154
mpp_device: mpp_device_init failed to find device for coding 7 type 0
mpp_rt: NOT found ion allocator
mpp_rt: found drm allocator
Segmentation fault (核心已转储)

请问这是什么原因导致的？

gdb调试啊，你这样发个段错误连堆栈都没有，谁知道哪里问题，这里看八成是你自己代码段错误了

jefferyzhang 发表于 2019-7-19 16:56
gdb调试啊，你这样发个段错误连堆栈都没有，谁知道哪里问题，这里看八成是你自己代码段错误了 ...

我的代码只有这一句
MppDecoder *dec = MppDecoderCreate(DECODE_TYPE_H264);

开个gdb看下堆栈

jefferyzhang 发表于 2019-7-19 17:02
开个gdb看下堆栈

(gdb) n
mpi: mpp version: Without VCS info
hal_h264d_api: Assertion vcodec_type & ((0x00000200) | (0x00000001) | (0x00000002)) failed at hal_h264d_init:104
hal_h264d_api: hal_h264d_init hard mode error, value=0
hal_h264d_api: Assertion 0 failed at hal_h264d_init:154
mpp_device: mpp_device_init failed to find device for coding 7 type 0
mpp_rt: NOT found ion allocator
mpp_rt: found drm allocator

Program received signal SIGSEGV, Segmentation fault.
0x0000000000000000 in ?? ()
(gdb) bt
#0  0x0000000000000000 in  ()
#1  0x0000007fb5f300a0 in hal_h264d_init () at /usr/lib64/librockchip_mpp.so.1
#2  0x0000007fb5f2f9f8 in mpp_hal_init () at /usr/lib64/librockchip_mpp.so.1
#3  0x0000007fb5ef7d68 in mpp_dec_init () at /usr/lib64/librockchip_mpp.so.1
#4  0x0000007fb5ef07e4 in Mpp::init(MppCtxType, MppCodingType) () at /usr/lib64/librockchip_mpp.so.1
#5  0x0000007fb5ef3340 in mpp_init () at /usr/lib64/librockchip_mpp.so.1
#6  0x0000007fb5ef4070 in MppDecoderCreate(DecodeType) () at /usr/lib64/librockchip_mpp.so.1

拜托了，看看

问题已经转给大佬了。
顺便问下，你这个板子是toybrick复现的么？我们这里复现不出来。
试下dnf clean all; dnf update库更新后再跑。

执行如下命令,看下vpu节点的权限：
ls -l /dev/rkvdec
ls -l /dev/vpu_service

执行如下命令，看下mpp版本号：
rpm -qa|grep mpp


帮忙提供如下信息：
1. 开发板的SN号
2. 内核是否重新编译过？

jefferyzhang 发表于 2019-7-19 17:33
问题已经转给大佬了。
顺便问下，你这个板子是toybrick复现的么？我们这里复现不出来。
试下dnf clean all; ...

是的，toybrick rk3399pro开发板，更新了也还是一样

kiwi 发表于 2019-7-19 17:44
是的，toybrick rk3399pro开发板，更新了也还是一样

你回下上面addy所要的信息

addy 发表于 2019-7-19 17:42
执行如下命令,看下vpu节点的权限：
ls -l /dev/rkvdec
ls -l /dev/vpu_service

[toybrick@localhost ~]$ ls -l /dev/rkvdev
ls: 无法访问'/dev/rkvdev': No such file or directory
[toybrick@localhost ~]$ ls -l /dev/vpu_service
ls: 无法访问'/dev/vpu_service': No such file or directory
[toybrick@localhost ~]$ rpm -qa|grep mpp
librockchip_mpp-devel-1.3.7-10.rockchip.fc28.aarch64
librockchip_mpp-1.3.7-10.rockchip.fc28.aarch64
librockchip_mpp-tests-1.3.7-10.rockchip.fc28.aarch64

1.SN:TDs33101190100363
2.没有重新编译过