[mythtv-users] OSD glitch - starts as 4:3 and corrects to 16:9
xanium4332 at googlemail.com
Sat May 26 12:34:25 UTC 2007
On 26/05/07, Dave <dave at 0bits.com> wrote:
> i posted a while ago about the OSD resizing and how in SDTV i get ugly
> fonts, but the responses still seem unsatisfying to me. So can someone
> clarify or correct the following:
> If i understand it correctly, the way it has been designed is that the
> OSD is injected/multiplexed into a dummy video stream of the size of the
> TV transmission and then resized to the default X11 screen size thus
> giving you ridiculously awful OSD when watching or switching to SDTV.
> Even at DVD quality TV transmission (720x576) i'm getting jaggy OSD
> fonts. So for example on my Sony Bravia at WideXGA (1360x768) and X11
> running at the same size, then the OSD is created at 720x576 or some
> other even lower SDTV resolution and injected on a dummy Nupple Video
> stream at that size and then resized to fill the X11 screen.
> Can someone explain why this design ? Why isn't the OSD multiplexed onto
> the video stream at the X11 size so it is always a fixed known size and
> not being resized at the TV stream size and then resized again to fill
> the X11 size ? I'm 100% sure there is a reason why the developers chose
> this method, but it is plain dog ugly. Is there some technical reasons
> someone could explain or is the OSD subsystem in serious need of redesign
> Also are other peoples channel names also being truncated or clipped due
> to long names ? For example "National Geographic" doesn't show correctly
> neither in the OSD nor the "browse" mode EPG. I generally get "ational
> Ge" which isn't quite as informative.
The solution is in the mythtv-vid branch. The OSD is layered afterwards,
keeping it at the maximum resolution all the time. It's done using OpenGL
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