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MX27 pre-processor colorspace conversion

Question asked by Dilebo on May 15, 2013
Latest reply on May 24, 2013 by Dilebo
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I have program on an i.MX27 working as follow :


RGB565 video stream input ---> RGB565 to YUV420 colorspace conversion ---> H.264 encoding ---> rtp stream


I wrote an algorithm to convert RGB to YUV but it's a bit slow for large resolution and I saw that I could use the pre-processor for the conversion (see section 41.5.5). But I have no idea how to use/configure the pre-processor.


So I'm looking for any tutorial or documentation about how to use the pre-processor on an MX27.


I only found which is about post-processor.


Thank you for any help,