v3.0.0-beta3

Changes in 3.0.0beta3

• Omxplayer backend has been replaced with vlc player
• Dual display support on Raspberry Pi 4
• Code base migrated from Python 2 to Python 3
• Change of caching mechanism to be compatible with vlc player
• Several minor backend changes

Config changes

• /etc/rpisurv.conf file is obsolete and replaced with config files in /etc/rpisurv folder to support dual display configuration.
• screen config option "autostretch" has been removed. Now it defaults to False.
• freeform_advanced_omxplayer_options is now freeform_advanced_vlc_options
• The advanced global config option "fixed_width" and "fixed_height" have been removed, similar behavior can be achieved with "force_coordinates"
• "cache_next_screen config" option is now "enable_opportunistic_caching_next_screen" to indicate that next-screen caching is automatically disabled if not all the technical constraints are met.
• New stream config option "network_caching_ms" option to fine tune smooth playback versus stream delay
• New stream config option "showontop" to be used together with "force_coordinates" to show a stream on top of another stream.