2019-01-28, 11:52
I experienced this behavior with all recent v18 RC builds. I'm now using the 20190126 build. 23.976 to 24 speedup at 60hz still works great with older Leia versions. I still have 20180915, 20180611 and 20180425 in my download folder and they don't have this issue.
Steps to reproduce:
1) Set the monitor/TV refresh rate to 60hz (eg. 1920x1080@60hz)
2) Enable "Sync Playback to Display", and disable "Adjust Display Refresh Rate"
3) Watch any 23.976 content.
4) Toggle on the on screen debug stats (Shift+Ctrl+O) and watch for the "Speed"%. (= 100%, no playback speedup), and notice the periodic micro stuttering.
In older versions, Kodi used to speed up the playback speed, from 23.976fps to 24fps, when your refresh rate is at 60hz, to better match the TV/monitor refresh rate (24 x 2.5 = 60), so the speed% would show "100.100%" when you toggle the debug OSD. In recent Leia RC builds, this adjustment is gone and I'm now experiencing subtle but periodic microstutters (probably not noticeable to everyone) when playing 23.976 content at 60hz. (probably has something to do with proper 3:2 pull down). Just to be clear, 29.97fps content will still be sped up to 30fps at 60hz as usual. It's not like Sync Playback to Display is broken.
So I'm under the impression that this behavior is probably removed on purpose for some good reason but I really hope you can bring it back or at least give us an option to choose if we want to speed up 23.976 to 24 at 60hz. For people who don't care for audio passthrough, or absolutely correct playback speeds, Sync Playback to Display is the best feature ever made. I don't like to see my TV repeatedly change its refresh rates back and forth, for example, when I'm watching some short video clips. In this case, Sync Playback to Display allows me to enjoy super smooth playback of video content at various frame rates (23.976f, 24f, 25f, 29.97f, 30f, 59.94f and 60f) without changing the refresh rate. Though for 25fps content, I have to use an external player (VLC) to slowdown 25fps to 24fps at 60hz for smooth playback. I heard that Kodi used to do Pal slowdown if you enable Sync Playback at 60hz, but not anymore.
It would be great if you can add back 23.976 to 24 speedup, and 25 to 24 slowdown when the refresh rate is at 60hz.
Steps to reproduce:
1) Set the monitor/TV refresh rate to 60hz (eg. 1920x1080@60hz)
2) Enable "Sync Playback to Display", and disable "Adjust Display Refresh Rate"
3) Watch any 23.976 content.
4) Toggle on the on screen debug stats (Shift+Ctrl+O) and watch for the "Speed"%. (= 100%, no playback speedup), and notice the periodic micro stuttering.
In older versions, Kodi used to speed up the playback speed, from 23.976fps to 24fps, when your refresh rate is at 60hz, to better match the TV/monitor refresh rate (24 x 2.5 = 60), so the speed% would show "100.100%" when you toggle the debug OSD. In recent Leia RC builds, this adjustment is gone and I'm now experiencing subtle but periodic microstutters (probably not noticeable to everyone) when playing 23.976 content at 60hz. (probably has something to do with proper 3:2 pull down). Just to be clear, 29.97fps content will still be sped up to 30fps at 60hz as usual. It's not like Sync Playback to Display is broken.
So I'm under the impression that this behavior is probably removed on purpose for some good reason but I really hope you can bring it back or at least give us an option to choose if we want to speed up 23.976 to 24 at 60hz. For people who don't care for audio passthrough, or absolutely correct playback speeds, Sync Playback to Display is the best feature ever made. I don't like to see my TV repeatedly change its refresh rates back and forth, for example, when I'm watching some short video clips. In this case, Sync Playback to Display allows me to enjoy super smooth playback of video content at various frame rates (23.976f, 24f, 25f, 29.97f, 30f, 59.94f and 60f) without changing the refresh rate. Though for 25fps content, I have to use an external player (VLC) to slowdown 25fps to 24fps at 60hz for smooth playback. I heard that Kodi used to do Pal slowdown if you enable Sync Playback at 60hz, but not anymore.
It would be great if you can add back 23.976 to 24 speedup, and 25 to 24 slowdown when the refresh rate is at 60hz.
