Change MPEG-TS input data handling (timeshift,use-data-from-timeshift,stream-migration-to-another-client)
The current (up to 4.2) timeshift implementation has some obstacles to implement some features like:
- use data from timeshift for recordings (late recordings request, but data are in the timeshift buffers)
- stream migration to another client (device)
The idea is to store the unmodified incoming MPEG-TS stream to disk / memory and then reparse it (feed it again) depending on requests. The initial parser should create files with time indexes and EPG info.
The stream migration might be implemented like named temporary virtual channels.