[Libav-user] Frames corruption when seeking...

wm4 nfxjfg at googlemail.com
Thu Jun 5 10:32:15 CEST 2014


On Thu, 5 Jun 2014 15:09:12 +1000
Jean-Yves Avenard <jyavenard at gmail.com> wrote:

> On 5 June 2014 13:27, Jean-Yves Avenard <jyavenard at gmail.com> wrote:
> 
> >
> > What I do notice however is while myth displays part of the previous
> > frames (from before the seek) after; xbmc will not display anything
> > for several seconds after a seek (you only get audio).
> 
> I get the exact same behaviour with mplayer when using the ffmpeg demuxer.
> if I start mplayer with:
> mplayer -vo  vdpau -vc ffvc1vdpau -demuxer lavf
> 
> After a seek, there's plenty of:
> [vc1 @ 0x7f0ce2c8b6c0]warning: first frame is no keyframe
> V:  89.5   0/  0  1%  3%  0.0% 0 0
> [vc1 @ 0x7f0ce2c8b6c0]warning: first frame is no keyframe
> V: 111.1   0/  0  1%  3%  0.0% 0 0
> [vc1 @ 0x7f0ce2c8b6c0]warning: first frame is no keyframe
> V: 121.7   0/  0  1%  2%  0.0% 0 0
> [vc1 @ 0x7f0ce2c8b6c0]warning: first frame is no keyframe
> V: 132.4   0/  0  0%  3%  0.0% 0 0
> [vc1 @ 0x7f0ce2c8b6c0]warning: first frame is no keyframe
> V: 143.5   0/  0  1%  4%  0.0% 0 0
> [vc1 @ 0x7f0ce2c8b6c0]warning: first frame is no keyframe
> V: 154.3   0/  0  1%  2%  0.0% 0 0
> [vc1 @ 0x7f0ce2c8b6c0]warning: first frame is no keyframe
> V: 246.1   0/  0  1%  1%  0.0% 0 0
> 
> This is a mpegts file

Might be a similar problem as with mpeg2 interlaced content? At least
vc1 in mkv seems to work fine here.


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