Update go to 1.15, update dependencies and remove unused dependencies (…

…danielpaulus#63)

* update go to 1.15 and other deps

* update dockerfile to go1.15

* go mod tidy

Gstreamer AppSource Implementation for AV playback on the desktop (da…

…nielpaulus#36)

* extract video pipeline into separate method, run go fmt

* added an example of a failure

* use a waveparser, works with an oggmux, just not hearing anything with an audiosink

* added vorbis hack, and now it works

* added queues to the video pipeline

* works

* use vtdec to bring down cpu usage

* add comments

* add fix for NSThread mainloop problem

* minor clean ups, add mac os only compile flag

* minor clean ups, add mac os only compile flag

* add linux adapter

* set sync to false for faster playback

* minor fixes

Merge pull request danielpaulus#31 from danielpaulus/fixFrameExtractor

Fix zlp bug