apodob a5e772f91f Move SubtitleDecoder to common
This CL moves SubtitleDecoder and all its dependencies
to common in order to enable using it in extractor
module while implementing SubtitleExtractor.

PiperOrigin-RevId: 388979021
2021-08-06 16:00:03 +01:00
..
2021-08-06 16:00:03 +01:00