[SOLVED] H264 seek artifacts (pause) after framerate changed

*nix specific usage questions
dg1727
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[SOLVED] H264 seek artifacts (pause) after framerate changed

Postby dg1727 » 11 Jan 2012 21:41

Hello,

I am using VLC 1.1.12 "The Luggage" on Ubuntu 11.04 Natty on x86 (32-bit).

I have a file which is H.264 video and AAC audio in an MKV container. When I pause VLC, then drag (seek) the track slider back and forth, there are blocky artifacts in the video, and sometimes the video goes to inverse-video (areas that are supposed to be almost black turn light-gray, etc.). These artifacts do not happen when I drag the track slider in play mode instead of in pause mode.

The video was made by using Avidemux 2.5.6 to process an FLV file. I set Avidemux to "copy" mode (rather than transcoding) for both the video and audio streams, and I used Avidemux's "Video > Frame Rate" menu option to adjust the frame rate.

The seek artifacts in VLC don't happen with the input FLV file, neither in pause mode nor in play mode.

I have uploaded the files to the FTP samples server. They are:
10.flv
10 (frame rate is only change).txt
10 (frame rate is only change).mkv

Thanks for your attention.

Edit: added [SOLVED] to the subject line
Last edited by dg1727 on 12 Jan 2012 21:16, edited 1 time in total.

TypX
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Re: H.264 seek artifacts (pause mode) after framerate is cha

Postby TypX » 12 Jan 2012 01:52

seek in mkv is broken in 1.1 you should try 1.2

dg1727
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Re: H.264 seek artifacts (pause mode) after framerate is cha

Postby dg1727 » 12 Jan 2012 19:52

Thanks, TypX. In Avidemux, I did the video processing again, but using MP4 as the container instead of MKV, and now the seek in VLC seems to work OK.

I am sure I will upgrade to VLC 1.2 later. Thanks again.

dg1727
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[SOLVED] H264 seek artifacts (pause) after framerate changed

Postby dg1727 » 12 Jan 2012 19:54

Trying to add [SOLVED] to the subject line.


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