Re: H.264 seek artifacts (pause mode) in long video but not short one

[email protected]
Newsgroups gmane.comp.video.videolan.vlc.general
Message-ID <[email protected]>
On Sun, 08 Jan 2012 16:02:04 -0500 [email protected] wrote:
>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 concatenate some FLV 
>
>files.  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 files, 
>neither in pause mode nor in play mode.  
>
>Does this sound like any known issue in VLC?  
>
>I will be glad to upload one of the input FLV's, as well as the 
>output MKV, to the VLC FTP samples server, but I would like 
>someone to confirm first that this is the recommended way to 
>troubleshoot (maybe there is some other obvious solution).  
>
>Also please ask me for any other info that may help in 
>troubleshooting the seek artifacts.  
>
>Thanks in advance for help.  

The same artifacts happen in VLC if all I do in Avidemux is change 
the frame rate, without appending any files.  

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.  

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