Release notes from flutter_rtmppublisher

Update to null safety

2021-05-13T01:19:42Z

Update the code to use null safety and upgrade the flutter version

Merge in the pull request with the build error

2021-02-27T17:26:59Z

Fix up the error from the pull request

Update IOS

2020-07-10T20:35:39Z

Update IOS to match the android changes.

Fix up IOS to correctly handle recording/streaming independently.
Add in adaptive bit rate to IOS
Add in the stats callback (although less data to return)

Fix OpenGL

2020-07-04T02:15:50Z

Streams correctly in all directions now with openGL. Defaults to openGL being on
in the example app
Changed the way the preview is displayed to do a boxrotation on the preview widget.
Still a race condition here that means sometimes it doesn't update correctly.

Fix android's use of the camera2 api

2020-07-01T01:11:45Z

BREAKING CHANGE: moved the useOpenGL call to the initialiation
of the sytem and not to each call.
Allow the recording/streaming to work independently on
android.
Change how the recroding/streaming happens to avoid issues with
the camera2 api.

Fix android restart

2020-06-09T01:36:48Z

Fix restarting on android. Can stop and restart now and it all works.

Fix streaming on android

2020-06-01T07:55:18Z

No content.

Fix issues with Android

2020-06-01T02:41:13Z

Add in github workflows to test/publish the package
Copy the video encoder from the pedro library and update
to make it not message with sizes for the surface, but
include the rotation to make rotation work without opengl.
Fix up issues with stopping on Android.

Using openGL for better rendering

2020-05-29T02:18:50Z

Fixed up issues with the stopVideoStreaming api.
Added a flag to use an openGL surface on android to allow for
correct rotation when encoding, also sets up to do filters.

Android fixed and working

2020-05-18T20:54:24Z

Android correctly sending video to the rtmp servers.