Bug 471156 (1.5X, clip, monitor, playback, project, speed) - 1.5X playback speed plays at 1X speed
Summary: 1.5X playback speed plays at 1X speed
Status: CONFIRMED
Alias: 1.5X, clip, monitor, playback, project, speed
Product: kdenlive
Classification: Applications
Component: Timeline & Editing (show other bugs)
Version: 24.05.1
Platform: Neon Linux
: HI normal
Target Milestone: ---
Assignee: Jean-Baptiste Mardelle
URL:
Keywords: triaged
: 455563 (view as bug list)
Depends on: 455563
Blocks:
  Show dependency treegraph
 
Reported: 2023-06-17 13:32 UTC by tocamgar
Modified: 2025-01-30 15:50 UTC (History)
6 users (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:


Attachments
Clip monitor 1.5X speed forward plays at 1X speed (28 bytes, text/plain)
2023-06-17 13:32 UTC, tocamgar
Details

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Description tocamgar 2023-06-17 13:32:51 UTC
Created attachment 159745 [details]
Clip monitor 1.5X speed forward plays at 1X speed

SUMMARY
When I try to play a video at 1.5X accelerated speed I can't get it even though the interface shows me that the video is playing at that speed (1.5X)
1.5X is the only speed that fails. The other speeds (2X, 3X, 5.5X and 10X) work correctly at their respective speeds.

STEPS TO REPRODUCE
1. Load a video to play it on clip monitor or project monitor
2. press the play button or space  bar key to start playback
3. press the forward button or L key to increase the playback speed to 1.5X
4. press the forward button or L key to increase the playback speed to 2X

OBSERVED RESULT
1.5X speed plays video at 1x speed.
2X speed plays video at 2X speed as expected.

EXPECTED RESULT
1.5X speed should play video at 1.5x speed.

SOFTWARE/OS VERSIONS
Windows: 11

ADDITIONAL INFORMATION
Comment 1 emohr 2023-06-22 18:15:22 UTC
Thank you for reporting. Yes, I can confirm this behavior. 1.5x times speed is the same as 1x speed.
Comment 2 emohr 2023-06-22 18:32:09 UTC
*** Bug 455563 has been marked as a duplicate of this bug. ***
Comment 3 Nicolás Maquiavelo 2024-01-08 23:42:56 UTC
I have this trouble to, I'm using:

Operating System: KDE neon 5.27
KDE Plasma Version: 5.27.10
KDE Frameworks Version: 5.113.0
Qt Version: 5.15.11
Kernel Version: 6.2.0-39-generic (64-bit)
Graphics Platform: X11
Processors: 4 × Intel® Core™ i3-4150 CPU @ 3.50GHz
Memory: 14.6 GiB of RAM
Graphics Processor: Mesa Intel® HD Graphics 4400
Manufacturer: Gigabyte Technology Co., Ltd.
Product Name: H81M-HD2
Kdenlive: Versión 23.08.4
Comment 4 emohr 2024-01-09 17:24:43 UTC
With this fix I could load your project without crash. Please check with the daily build if it is opening on your end as well without crash: https://invent.kde.org/multimedia/kdenlive/-/jobs/1494939/artifacts/download
Comment 5 tocamgar 2024-01-09 22:17:41 UTC
This comment is out of context
Comment 6 tocamgar 2024-01-09 22:18:01 UTC
(In reply to emohr from comment #4)
> With this fix I could load your project without crash. Please check with the
> daily build if it is opening on your end as well without crash:
> https://invent.kde.org/multimedia/kdenlive/-/jobs/1494939/artifacts/download

This comment is out of context
Comment 7 emohr 2024-01-10 16:34:32 UTC
Thanks. This comment was ment for bug no 472849.
Comment 8 Nicolás Maquiavelo 2024-02-29 16:01:16 UTC
Playback speed at 1.5x still fail in Kdenlive 24.02.0 

Operating System: KDE neon 6.0
KDE Plasma Version: 6.0.0
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2
Kernel Version: 6.5.0-21-generic (64-bit)
Graphics Platform: Wayland
Processors: 4 × Intel® Core™ i3-4150 CPU @ 3.50GHz
Memory: 14.6 GiB of RAM
Graphics Processor: Mesa Intel® HD Graphics 4400
Manufacturer: Gigabyte Technology Co., Ltd.
Product Name: H81M-HD2
Kdenlive:  24.02.0
Comment 9 Nicolás Maquiavelo 2024-06-18 20:31:32 UTC
Playback 1.5x speed still fail in Kdenlive 24.05.0
Comment 10 Nicolás Maquiavelo 2024-06-18 20:45:14 UTC
Playback 1.5x speed still fail in Kdenlive 24.05.0
Operating System: KDE neon 6.0
KDE Plasma Version: 6.1.0
KDE Frameworks Version: 6.3.0
Qt Version: 6.7.0
Kernel Version: 6.5.0-41-generic (64-bit)
Graphics Platform: Wayland
Processors: 4 × Intel® Core™ i3-4150 CPU @ 3.50GHz
Memory: 14.6 GiB of RAM
Graphics Processor: AMD TURKS
Manufacturer: Gigabyte Technology Co., Ltd.
Product Name: H81M-HD2
Comment 11 Nicolás Maquiavelo 2024-06-26 17:05:35 UTC
Playback 1.5x speed still fail in Kdenlive 24.05.1
Comment 12 kde.wriggly909 2025-01-30 15:38:20 UTC
Can confirm, i never had 1.5x working on windows 11. In addition 2x has bad cracking sound no matter what combination of audio backend & driver.