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Overlay & Video encoding problem in i.MX53

Question asked by Nandkishor Biradar on Mar 16, 2014
Latest reply on Jun 16, 2014 by Yixing Kong

Hi all,

 

     I am working on a project which involves,

 

          1. Capture the video from the camera in a I420 (YUV 4:2:0 interlaced) format.

          2. De-interlace the video & overlay it.

          3. Display the output video.

          4. Simultaneously encode it in H.264 format & save it in a file.

 

I am able to achieve the first three points, by modifying the "mxc_ipudev_test, to capture the video from the camera.

The input buffer & output buffer is allocated internally by IPU V3 lib. Output format is RGBP.

 

Now I want to encode the video simultaneously. I have some queries,
1. How to convert the RGBP to YUV 420 format? As VPU supports YUV 4:2:0 format.
2. What is the efficient method to pass the frame from IPU to VPU?

 

Kishore.

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