Merge branch 'master' of https://github.com/rosenbjerg/FFMpegCore

Former-commit-id: f2dae96a03

.github/workflows/ci.yml

@@ -0,0 +1,16 @@
+name: CI
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+    - name: Setup .NET Core
+      uses: actions/setup-dotnet@v1
+      with:
+        dotnet-version: 3.1.101
+    - name: Build with dotnet
+      run: dotnet build
+    - name: Test with dotnet
+      run: dotnet test

.travis.yml

@@ -1,6 +1,6 @@
 language: csharp
 mono: none
-dotnet: 2.1.300
+dotnet: 3.1
 os:
   - linux
   - osx