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PostPosted: Mon Jan 07, 2008 3:58 am 
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Joined: Thu Jun 23, 2005 1:20 am
Posts: 148
Hi *

As subject line says, I want to encode SD (720x576 interlaced, 4-6Mb/s) content to non-interlaced H264. Container can be avi.

Currently I was able to achieve quite good quality with latest mencoder SVN & following settings (here only video part):

VIDEO_FirstPass="-ovc x264 -x264encopts pass=1:bitrate=1200:cabac:deblock:frameref=3:bframes=2:b_adapt:qp_step=4:weight_b:chroma_me"

VIDEO_SecndPass="-ovc x264 -x264encopts pass=2:bitrate=1200:cabac:deblock:frameref=3:bframes=2:b_adapt:qp_step=4:weight_b:chroma_me"

Issue is interlacing. Converted content is still interlaced. Playing it on VLC with deinterlace ON gives really nice picture, however with deinterlace OFF it has classical "interlace" distortions on fast moving parts :-(

I was trying add video filters like i.e. "-vf yadif=3,mcdeint" but result was:
-content start to be deinterlaced
-all movements are visibly "vibrant"
-video & audio are out of sync & video is much slower

Can somebody hint me how to improve my mencoder parameters to have proper interlacing & keep good quality ?

Also maybe this thread might be good place to share other ppl optimal SD->H264 mencoder parameters...

thanx in advance


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