[ci] add azure linux deps

diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index ecf4a9d..4982d81 100644 (file)
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -3,7 +3,20 @@ jobs:
 
 - job: linux
   pool:
-    vmImage: 'ubuntu-16.04'
+    vmImage: 'ubuntu-latest'
+  steps:
+  - script: |
+      sudo apt install libavformat-dev
+    displayName: 'deps'
+  - script: |
+      make
+    displayName: 'make'
+    env:
+      CFLAGS: -Werror
+
+- job: linux-nodeps
+  pool:
+    vmImage: 'ubuntu-latest'
   steps:
   - script: |
       make