Create watch_folder_update_sch.sh

[bchah]

This script lets you watch a folder relative to your root media folder for a Scheduled Provider and update a manifest.sch file of your choosing whenever files are added, renamed, or removed. Requires inotify-tools and xmlstarlet.

[getroot]

Thank you for the great PR. Could you please add information about this script to the manual?
https://github.com/AirenSoft/OvenMediaEngine/blob/master/docs/live-source/scheduled-channel.md

[bchah]

Hi @getroot I was writing up the documentation but realized there is an issue with ScheduledChannel that makes use of a watch folder a bit risky. If you update the configuration of a .sch file OME will immediately start playback from the beginning of the updated .sch file.

So even if somebody wanted to just remove a file from the watch folder, it would cause their playlist to start from the beginning again. I have not tested this with the API yet. Do you know if it behaves the same way? i.e. restarts playback anytime a ScheduledChannel is updated?

Here is my idea for how to make changing the .sch file seamless: When a change is detected, the current playing item finishes playback. Then if the same item with matching parameters is found in the new .sch file, playback continues from the next item in the new playlist, rather than from the beginning. If previously playing item is not found in the new playlist, or if the user sends an API call to 'delete' the stream at any time then playback can start directly from the beginning. I hope this makes sense and appreciate that it is not a simple request, but it would make the ScheduledChannel feature a lot more robust.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.