VP8 Encode for MX6Q-SABRE+Android4.3

[yuuki]

Dear all,

We run Android4.3(NXP's BSP) on MX6Q-SABRE board.

And We want to encode Camera image with VP8.

However, VPU of i.MX6 does not support VP8 Encode.

In Android4.3, VP8 is encoded by software.

In this case the CPU load is very high.

We have some questions.

(1) Is the VP8 software Encoder using the NEON of CortexA9?

(2) Can the CPU load be reduced by using NEON, if it is not used?

(3) Is there the method to accelerate VP8 Encoding by HW (except NEON)?

Best Regards,

Yuuki

[igorpadykov · Accepted solution]

Hi Yuuki

- as vp8 encoder is generic encoder provided by google,

I am afraid it is not using neon

- yes, neon can give 60-150% performance increase according to paper estimations on p.4

http://www.xilinx.com/Attachment/53775/Neon_Introduction_for_Avnet_training.pdf

one can look at webmproject/libvpx :

https://github.com/webmproject/libvpx/tree/master/vp8/encoder/arm/neon

- I am not aware of such methods

Best regards

igor

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