[FFmpeg-user] error concealment from ffmpeg/x264 for h264 videos

HardikSharma hardik.sharma22 at yahoo.com
Sat Oct 1 20:08:30 CEST 2011

I attached the .264 encoded stream I used to introduce errors.  

From: Michael Niedermayer [via FFmpeg-users] <ml-node+s933282n3863299h87 at n4.nabble.com>
To: HardikSharma <hardik.sharma22 at yahoo.com>
Sent: Saturday, 1 October 2011 10:19 AM
Subject: Re: error concealment from ffmpeg/x264 for h264 videos

On Fri, Sep 30, 2011 at 10:32:15PM -0700, HardikSharma wrote: 

> Hi guys, 
> I am producing error in h264 stream by dropping 5%, 10% and 20% slices from 
> JM and ffmpeg encoded streams. I calculated PSNR for both and JM is like 
> more then 40% better then ffmpeg. I tried to get JM and ffmpeg to as close 
> as possible in specifications. 
> The bigger concern is in ffmpeg, it even dropped some frames when I 
> introduced error in 264 stream but JM didn't drooped any frame. Am I 
> ignoring any crucial point? or is it suppose to be like this. That's why I 
> want to know what kind of conceal FFmpeg uses so that I can figure out 
> something for this. Please post your suggestions.     Please provide the h264 stream you use so we can reproduce this 

Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB 

It is what and why we do it that matters, not just one of them. 

ffmpeg-user mailing list 
[hidden email] 

 signature.asc (205 bytes) Download Attachment

If you reply to this email, your message will be added to the discussion below:http://ffmpeg-users.933282.n4.nabble.com/error-concealment-from-ffmpeg-x264-for-h264-videos-tp3862185p3863299.html 
To unsubscribe from error concealment from ffmpeg/x264 for h264 videos, click here.

View this message in context: http://ffmpeg-users.933282.n4.nabble.com/error-concealment-from-ffmpeg-x264-for-h264-videos-tp3862185p3863405.html
Sent from the FFmpeg-users mailing list archive at Nabble.com.

More information about the ffmpeg-user mailing list