strange problem: SD playback stutters, but HD ok?
Posted: Tue Feb 12, 2008 11:23 am
I am having a strange playback issue.
My DD1.4i cannot play SD MPEG2 channels smoothly. Frame drops a lot.
The strange thing is, it plays HD MPEG2 channels pretty well. Zero or very few frame drops depending on channel. Very watchable.
I have tried different MPEG2 codecs: PowerDVD, PureVideo, and ffdshow. Also tried different audio codec combinations: Purevideo, ffdshow, microsoft. All behave the same with VMR9.
If I set render mode to VMR, then SD and HD are both smooth. But the interlace artifact is very bad. So picture quality still not satisfatory.
How can SD playback be so bad while HD is mostly ok? They are all MPEG2 channels...
BTW, MPEG4 channels play even better on my system with CoreAVC 1.6.5. Zero or very few frame drops depending on channel.
Has anyone experienced this before? How do I fix SD playback with VMR9?
My DD1.4i cannot play SD MPEG2 channels smoothly. Frame drops a lot.
The strange thing is, it plays HD MPEG2 channels pretty well. Zero or very few frame drops depending on channel. Very watchable.
I have tried different MPEG2 codecs: PowerDVD, PureVideo, and ffdshow. Also tried different audio codec combinations: Purevideo, ffdshow, microsoft. All behave the same with VMR9.
If I set render mode to VMR, then SD and HD are both smooth. But the interlace artifact is very bad. So picture quality still not satisfatory.
How can SD playback be so bad while HD is mostly ok? They are all MPEG2 channels...
BTW, MPEG4 channels play even better on my system with CoreAVC 1.6.5. Zero or very few frame drops depending on channel.
Has anyone experienced this before? How do I fix SD playback with VMR9?