Transparent video read/write support (#145)

* Add support for reading transparent Matroska and implement alpha side data & decode

* Few fixes

* Implement alpha encoding

* Gracefully handle inability to acquire WebGL context, properly clean up WebGL contexts

* Improve touch device detection

* Test test

* Test test #2

* Test test 3

* Test test 4

* Test test 5

* Test test 6

* Test test 7

* Test test 8

* Test test 9

* Test test 10

* Test test 11

* Test test 12

* Test test 13

* Test test 14

* Test test 15

* Test test 16

* Test test 17

* Test test 18

* Test test 19

* Test test 20

* Fix type errors, improve MetadataTags docs

* Do a bunch of docs work

* Test test?

* "Unexpected only modifier 🤓"

* Add InputVideoTrack.canBeTransparent()

* Some clean-up

* Adjust CI to be less spammy in PRs

* Fix broken license headers

.github/workflows/lint.yml

@@ -3,6 +3,7 @@ name: Lint
 on:
   push:
   pull_request:
+    types: [opened, reopened]
 
 jobs:
   lint:
@@ -21,11 +22,11 @@ jobs:
       - name: Install dependencies
         run: npm ci
 
-      - name: Run build
-        run: npm run build
-
       - name: Run TypeScript
         run: npm run check
 
       - name: Run ESLint
         run: npm run lint
+
+      - name: Run build
+        run: npm run build

.github/workflows/test.yml

@@ -3,6 +3,7 @@ name: Test
 on:
   push:
   pull_request:
+    types: [opened, reopened]
 
 jobs:
   test:
@@ -22,4 +23,4 @@ jobs:
         run: npm ci
 
       - name: Run tests
-        run: npm run test
+        run: xvfb-run npm test