https://bugs.kde.org/show_bug.cgi?id=494097
Bug ID: 494097
Summary: Exported h264_nvenc and hevc_nvenc a little bit
desynced with Windows codecs
Classification: Applications
Product: kdenlive
Version: unspecified
Platform: Other
OS: Microsoft Windows
Status: REPORTED
Severity: normal
Priority: NOR
Component: Rendering & Export
Assignee: j...@kdenlive.org
Reporter: prezi...@gmail.com
Target Milestone: ---
Exported h264_nvenc and hevc_nvenc video when played with Windows codecs (WMP,
Movies...) shows a video that is just a little bit late behind sound
(desynced), I could say even that it is hard to notice but it is visible. Same
video works perfect with VLC or K-Lite Codec Pack or when imported in any other
video editor just with Windows h264 and with hevc video extension plays
desynced as I explained. On the other hand video editor Shotcut render
hevc_nvenc that plays normaly with Windows codecs and video players and it is
based on MLT and ffmpeg just as Kdenlive so I guess that Kdenlive developers
could fix this so that exported hevc_nvenc and h264_nvenc plays normaly
(synced) with Windows mp4 codec and HEVC video extension trough WMP or Movies.
I tried to change audio codecs and bitrate and almost all settings available
but I could not make it work just noticed that video is a little closer to
sound when I m using just libx264 or libx265 without nvenc acceleration but it
is much slower rendering. I need just hevc_nvenc to export video in sync with
Microsoft HEVC video extension just for better compatibility with others, it
would not be a problem for me becose I can always use VLC or some other player
and open source codecs to watch it. h264_nvenc is not a problem becose I use it
just for sending to Youtube and it's servers render normaly sent video exported
with h264_nvenc and Kdenlive
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