View Issue Details
|ID||Project||Category||View Status||Date Submitted||Last Update|
|0000209||OpenMPT||[All Projects] User Interface||public||2011-11-19 00:13||2018-09-22 19:08|
|Reporter||Saga Musix||Assigned To||Saga Musix|
|Product Version||OpenMPT 1.20.00.* (old testing)|
|Target Version||OpenMPT 1.27.10.00 / libopenmpt 0.3.12 (upgrade first)||Fixed in Version||OpenMPT 1.27.10.00 / libopenmpt 0.3.12 (upgrade first)|
|Summary||0000209: Sample preview sometimes misses initial frames|
Sometimes, triggering sample playback from the sample tab plays the sample from its loop start point instead of the beginning of the sample. I noticed that this especially happens if there are a lot of NNA channels playing, but I couldn't find a reliable way to reproduce it. Triggering the sample often enough should show the defect after some time.
|Tags||No tags attached.|
|Has the bug occurred in previous versions?||I think yes.|
|Tested code revision (in case you know it)|
Applied a tentative "fix" in r3819: Searching for an available virtual channel backwards instead of forwards to reduce risk of clashing with "real" NNA channels. I have no idea why this works (because in theory, it shouldn't change anything), but it seems to help for now.
Still happening and I still have no clue why.
I attached a sample that can easily be used to reproduce the problem and a recording of what happens. It doesn't even have to be a looped sample, it just seems like the initial frame of sample playback is cut off, although I'm not aware of any render optimizations that could cause this. To reproduce, the sample should be triggered roughly when it's about to end (try hitting a steady ~ 130 BPM beat).
sample cutting.zip (222,378 bytes)
This age-old mystery is now finally solved in r10802. I suspect that libopenmpt_ext will require a similar fix.
|2011-11-19 00:13||Saga Musix||New Issue|
|2014-03-03 21:04||Saga Musix||Note Added: 0001576|
|2014-03-03 21:04||Saga Musix||Status||new => resolved|
|2014-03-03 21:04||Saga Musix||Resolution||open => fixed|
|2014-03-03 21:04||Saga Musix||Fixed in Version||=> OpenMPT 1.23.01.00 (upgrade first)|
|2014-03-03 21:04||Saga Musix||Target Version||=> OpenMPT 1.23.01.00 (upgrade first)|
|2014-03-27 18:35||Saga Musix||Assigned To||=> Saga Musix|
|2014-07-01 16:10||Saga Musix||Note Added: 0001732|
|2014-07-01 16:10||Saga Musix||Status||resolved => assigned|
|2014-07-01 16:10||Saga Musix||Resolution||fixed => reopened|
|2018-09-17 20:33||Saga Musix||File Added: sample cutting.zip|
|2018-09-17 20:33||Saga Musix||Note Added: 0003639|
|2018-09-17 20:35||Saga Musix||Note Edited: 0003639||View Revisions|
|2018-09-17 20:36||Saga Musix||Note Edited: 0003639||View Revisions|
|2018-09-17 20:37||Saga Musix||Note Edited: 0003639||View Revisions|
|2018-09-17 20:45||Saga Musix||Note Edited: 0003639||View Revisions|
|2018-09-18 20:59||Saga Musix||Note Added: 0003640|
|2018-09-18 20:59||Saga Musix||Status||assigned => resolved|
|2018-09-18 20:59||Saga Musix||Resolution||reopened => fixed|
|2018-09-18 20:59||Saga Musix||Fixed in Version||OpenMPT 1.23.01.00 (upgrade first) => OpenMPT 1.28.01.00 (goals)|
|2018-09-18 20:59||Saga Musix||Target Version||OpenMPT 1.23.01.00 (upgrade first) => OpenMPT 1.28.01.00 (goals)|
|2018-09-18 21:31||Saga Musix||Summary||Sample preview sometimes starts from loop point => Sample preview sometimes misses initial frames|
|2018-09-22 19:08||Saga Musix||Fixed in Version||OpenMPT 1.28.01.00 (goals) => OpenMPT 1.27.10.00 / libopenmpt 0.3.12 (upgrade first)|
|2018-09-22 19:08||Saga Musix||Target Version||OpenMPT 1.28.01.00 (goals) => OpenMPT 1.27.10.00 / libopenmpt 0.3.12 (upgrade first)|