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by dvdeurse
30 Oct 2009 13:44
Forum: VLC stream-output (sout)
Topic: RC3 H264 encoding quality worse than 0.86i with low bitrates
Replies: 64
Views: 16038

Re: RC3 H264 encoding quality worse than 0.86i with low bitrates

J-B has worked regarding this matter, and if you could test 1.0.3-rc version regarding this matter, it would be great (seems ok for me with quick test, but I don't really use windows or do encoding on windows side at all). I did a quick test (same parameters as discussed here before) and the qualit...
by dvdeurse
23 Oct 2009 08:44
Forum: VLC stream-output (sout)
Topic: RC3 H264 encoding quality worse than 0.86i with low bitrates
Replies: 64
Views: 16038

Re: RC3 H264 encoding quality worse than 0.86i with low bitrates

There have been people complaining about windows side quality on x264 before, and we're checking that possible crosscompile bug. But as VLC doesn't have that many windows developers, it takes littlebit time (and as 1.0.2 is coming out soon (Tm), it takes time too).
Any progress on this problem?
by dvdeurse
21 Sep 2009 14:17
Forum: VLC stream-output (sout)
Topic: RC3 H264 encoding quality worse than 0.86i with low bitrates
Replies: 64
Views: 16038

Re: RC3 H264 encoding quality worse than 0.86i with low bitrates

Is there anyone that can confirm these problems with the windows version of VLC 1.01?
by dvdeurse
18 Sep 2009 08:50
Forum: VLC stream-output (sout)
Topic: RC3 H264 encoding quality worse than 0.86i with low bitrates
Replies: 64
Views: 16038

Re: RC3 H264 encoding quality worse than 0.86i with low bitrates

I did also the test (i.e., same VLC parameters as described above) with the linux version of VLC (1.0.1). Surprisingly, the linux version does not have this problem: http://multimedialab.elis.ugent.be/users/dvdeurse/vlc_101_linux.jpg . Maybe something goes wrong during the cross-compilation to Windo...
by dvdeurse
17 Sep 2009 14:34
Forum: VLC stream-output (sout)
Topic: RC3 H264 encoding quality worse than 0.86i with low bitrates
Replies: 64
Views: 16038

Re: RC3 H264 encoding quality worse than 0.86i with low bitrates

Same result (i.e., bad quality) with the nightly trunk build (trunk-20090916-2205): http://multimedialab.elis.ugent.be/user ... _trunk.jpg
by dvdeurse
17 Sep 2009 12:47
Forum: VLC stream-output (sout)
Topic: RC3 H264 encoding quality worse than 0.86i with low bitrates
Replies: 64
Views: 16038

Re: RC3 H264 encoding quality worse than 0.86i with low bitrates

Did you use same parameters with vlc also eg #transcode{venc=x264{keyint=32,bframes=0,ref=1,aq-mode=0},vb=500} ? Yes I did: vlc.exe -vvv -Idummy --reset-config dshow:// :dshow-vdev="Osprey-5X0 Video Device 2" :dshow-adev="none" :dshow-size="768x432" :dshow-fps=25 :dsho...
by dvdeurse
16 Sep 2009 14:47
Forum: VLC stream-output (sout)
Topic: RC3 H264 encoding quality worse than 0.86i with low bitrates
Replies: 64
Views: 16038

Re: RC3 H264 encoding quality worse than 0.86i with low bitrates

Did you test that x264 stand-alone encode dated same as vlc 1.0.1 release? as x264 has fixed some bugs/got improvements meanwhile. So could you try nightly build trunk and compare it to current x264 stand-alone encoder instead. Here is a new comparison: http://multimedialab.elis.ugent.be/users/dvde...
by dvdeurse
14 Sep 2009 17:02
Forum: VLC stream-output (sout)
Topic: RC3 H264 encoding quality worse than 0.86i with low bitrates
Replies: 64
Views: 16038

Re: RC3 H264 encoding quality worse than 0.86i with low bitrates

I don't think that the right aq-mode setting solves this problem. Even after disabling aq-mode, I still get the problem mentioned in this thread. The configuration I've used is as follows: * VLC 1.0.1 and VLC 0.9.8i (both Windows versions) * capture stream from a direct show filter * transcode this ...

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