* update faq

Author: lxowalle

docs/doc/en/faq.md

@@ -253,3 +253,11 @@ except:
     continue
 ```
 
+## VI_VENC_GetStream failed with 0xc0078012 during program runtime
+This issue occurs because the program did not exit properly last time, causing the VENC module resources to not be released. As a result, the application cannot obtain the VENC resources when it starts again. The current solutions are:
+
+1. Restart the system.
+
+2. Turn off the MaixVision preview view or switch to the PNG stream.
+
+Since this is a legacy issue at the underlying framework level, it can currently only be resolved at the application level. Efforts should be made to ensure that the program exits normally.

docs/doc/zh/faq.md

@@ -242,3 +242,10 @@ except:
     time.sleep_ms(10)
     continue
 ```
+
+## 程序运行时出现 CVI_VENC_GetStream failed with 0xc0078012
+
+这是因为上次程序没有正常退出，导致venc模块资源没有释放，再次启动应用就拿不到venc的资源了。 目前解决方法是：
+1. 重启系统
+2. 关掉maixvision的预览视图，或者切换到png流
+由于这是底层框架上遗留的问题，目前只能从应用层解决，尽量保证程序正常的退出