Hi Andy, On Sun, Jun 26, 2016 at 12:25 AM, Andy Furniss <adf.li...@gmail.com> wrote:
> Nayan Deshmukh wrote: > >> Hi Andy, >> >> Thanks for testing the patches. >> >> Please send me the videos and ratios with which there is corruption. >> > > > https://drive.google.com/file/d/0BxP5-S1t9VEEaHZEM203RFpyNEE/view?usp=sharing > > This has no aspect encoded and displayed fullscreen on a 1920x1080 > monitor shows vertical line artifacts over the first 2/3 of the image. > > When I say lines they are not lines as such just that the distortion > on the pendulum shows as it passes over imaginary lines at fixed > points on the screen. > > with mplayer -aspect 4/3 or 16/9 it doesn't. > I tested the videos and found out that the distortion is because of the amount of calculation done in the fragment shader. I tested the video with vl_median_filter and it showed no distortion however, with vl_matrix_filter( which requires more calculations than vl_median_filter) it showed the same distortion. I'll try to make it more efficient. But it still requires a lot of processing for a single pixel as it uses 15 neighbouring pixel. Also I don't see any offsets with the videos, may be I am missing something. If could tell me more about the offsets, I'll try to debug them. Thanks, Nayan. > > That one is 720x576, with a 704x576 like - > > ftp://ftp.tek.com/tv/test/streams/Element/MPEG-Video/625/mobl_080.m2v > > 4/3 still has the vertical "line" artifacts - 16/9 doesn't. > > On other vids there is a hint of horizontal distortion, I'd need time > to cut the one I saw that on - it was subtle on a 1440x1080 16/9 long vid. > > > > >
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