Regarding input resolution of i.MX6 IPU-VDIC

samuel-park · ‎01-25-2015

Dear,

I checked input resolution of IPU-VDIC which is de-interlacer in i.MX6Duallite

The specification is shown below from reference manual.

• Input for de-interlacing: three consecutive fields

• Source

• The most recent field may come from the CSI or from system memory

• The other two fields are read from memory

• Field size: Supports up to 1080p

• Pixel format: YUV 4:2:2/4:2:0, 8 bits/value

• Typical video sources - SDTV: 480i30 (720x480 at 30 fps) or 576i25 (720x576

at 25 fps) and HDTV: 1080i30 (1920x1080 at 30 fps)

I also checked the below document.

FTF-CON-F0119- A Deep Dive into Image Processing for i.MX 6 Application Processors

This say as below.

• Resolution: field size up to 968x1024 for i.MX6 and 720x1024 in i.MX5 pixels. Larger frames are processed in stripes (split mode).

Reference manual and FTF-CON-F0119 document occurs in difference.

1. Could you please let me know the reason?

2. Can VDIC of IPU receive 1080i30 as input?

Thanks in advance.

Best regards.

igorpadykov · ‎01-26-2015

Hi Samuel

field size up to 968x1024 for i.MX6

and for 1080i30 one can use split mode.

Best regards

igor

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samuel-park · ‎01-26-2015

Dear igor

Thank you for your response.

I got a 1080i20fps as result of VPU Encoder with 1080i30 video stream input.

The video image quality is very low. What's wrong?

if the performance is correct. How about using VDIC of IPU to convert interlaced image to progressive image?

Is it correct that split mode support to divide an original image into split multiple images to convert it?

Thanks.

Best regards.

igorpadykov · ‎01-27-2015

Hi Samuel

I think you can create new threads for that.

Usually one thread is created for one problem.

Thanks !

igor