displaying 1280x800 video

rect

Hi ,

Untill now i have been video preview project in dvsdk. It has a input and output resolution of 720x480. I give input through dvd player and display the output in monitor using component display. everything works perfectly.But of late i am in need to display 1280x800. I have resized input to 1280x800 using resizer but when i send it to display , there is only noise.I have checked the output from resizer by writing it to a file . its perfect. I have not made any changes other than changing the height and width from 720x480 to 1280x800 while creating the vpbe driver. I know i am missing something. .Can someone through some light on what i am missing .

over 12 years ago

0 Renjith Thomas over 12 years ago

Guru 31670 points

Rect,

Please give specific information regarding the SoC, the display used etc. Are you using an LCD panel? If so, can you describe the interface?

0 rect over 12 years ago in reply to Renjith Thomas

Prodigy 170 points

Hi renjith,

I am using Dm6437 evm board. I give input through DVD player and display it in monitor using component display. i have read somewhere that for analog display resolution cannot be changed. Is it that way. ?

Thanks

Rect

0 Renjith Thomas over 12 years ago in reply to rect

Guru 31670 points

Rect,

Its not just the resizer out put that needs to be changed. The display driver has to be driven at 1280x800. That's the reason why you are not able to see anything proper. Can you upload the snapshot of what is visible on the display?

0 rect over 12 years ago in reply to Renjith Thomas

Prodigy 170 points

Renjith,

Please find attached the screenshot. Is it really possible to change the resolution to 1280x800 for analog display. because i read that timings can be changed only for digital display and for analog we have to use standard NTSC/PAL timing which gives a resolution of 720x480. I am a beginner in display standards and color systems. correct me if am wrong.

0 Renjith Thomas over 12 years ago in reply to rect

Guru 31670 points

Rect,

If you are using NTSC/PAL composite video output then the maximum resolution possible will be 720x480 or 720x576. If you are using component video it can do upto 1080p, I believe.

0 rect over 12 years ago in reply to Renjith Thomas

Prodigy 170 points

Renjith,

I am using component output to display. Can you kindly help me in seeting the output to 1080p.

Rect

0 Renjith Thomas over 12 years ago in reply to rect

Guru 31670 points

Rect,

I have not implemented it before. I need to try out on the board to make it working. It will not be easy to debug it over the forum.

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displaying 1280x800 video