topic i.MX8MQLite emulation in i.MX Processors

i.MX8MQLite emulation

torus1000 — Tue, 18 Jun 2019 08:27:14 GMT

Hi,

I would like to emulate and evaluate i.MX8MQLite performance with MCIMX8M-EVK.

How can I disable VPU?

I checked defconfig but nothing found.
https://source.codeaurora.org/external/imx/linux-imx/tree/arch/arm64/configs/defconfig?h=imx_4.14.98_2.0.0_ga

For instance, is it OK to play video with software decoder plugin instead of VPU plugin?

Can anybody help me?

Re: i.MX8MQLite emulation

joanxie — Wed, 19 Jun 2019 07:26:21 GMT

you don't need to disable vpu, if you need use software decoding, you can use libav(open source), but I don't know why you use software deocoding since imx8M has hardware decoding?

for how to install the libav, pls refer to the steps as below:

The following steps show how to install gstreamer1.0-libav into a rootfs image.
1. Add the following lines into the configuration file conf/local.conf.
IMAGE_INSTALL_append = " gstreamer1.0-libav"
LICENSE_FLAGS_WHITELIST = "commercial"
2. Build gstreamer1.0-libav.
$ bitbake gstreamer1.0-libav
3. Build the rootfs image.
$ bitbake
$ <image_name>