https://bugs.kde.org/show_bug.cgi?id=442802
Bug ID: 442802
Summary: Severe playback stutter in videos >30fps with audio
Product: digikam
Version: 7.3.0
Platform: Microsoft Windows
OS: Microsoft Windows
Status: REPORTED
Severity: normal
Priority: NOR
Component: Preview-Video
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
SUMMARY
Severe playback stutter in videos >30fps, but only if an audio track is
present.
Observed in MP4 h264 & h265 video files with AAC audio.
- Stutter not present in 60fps video files without audio
- Stutter not present in 30fps videos with audio (AAC)
STEPS TO REPRODUCE
1. Preview 60fps h264/h265 AAC video files
2.
3.
OBSERVED RESULT
Severe playback stutter
- Video plays for 0.5s, stops for 0.5s, plays for 0.5s, etc.
- Some videos play too fast for approx 0.5s, stop for 0.5s, play too fast for
0.5s, etc
Seems almost like the audio isn't being synced with the video framerate?
EXPECTED RESULT
Smooth video playback
SOFTWARE/OS VERSIONS
Windows: Windows 10 Pro 64-bit (10.0, Build 19042)
(19041.vb_release.191206-1406)
macOS:
Linux/KDE Plasma:
(available in About System)
KDE Plasma Version:
KDE Frameworks Version: 5.80.0
Qt Version: 5.15.2
ADDITIONAL INFORMATION
- Tested with stereo audio
- appears across a range of audio bit rates.
- Have also observed in 60fps .MOV (mpeg4) files with pcm_s16le audio
HARDWARE
CPU = i7-10700k
RAM = 64GB
GPU = GTX1070
--
You are receiving this mail because:
You are watching all bug changes.
