Hi Jeffy,
On Fri, May 25, 2018 at 05:52:57PM +0800, JeffyChen wrote:
> On 05/25/2018 02:10 PM, Tomasz Figa wrote:
> > On Thu, May 24, 2018 at 9:18 PM Baruch Siach <baruch at tkos.co.il> wrote:
> > > It looks like only v2 supports h.264 encoding. Does the v2 plugin work
> > > with the rk3288?
> >
> > Hmm, looks like I missed the part about h264 in your original message (only
> > noticed encoding). We didn't have a need to encode h264 on rk3288 devices.
> > The need showed up only later when we were working on rk3399. This made
> > both the driver and plugin for rk3288 lack h264 support.
> >
> > AFAICT the hardware programming interface differs between rk3288 and
> > rk3399, so v2 might not work, but maybe you just need to reshuffle some
> > registers.
> >
> > It's also possible that Rockchip has some code for it. Jeffy, do you know
> > if there is h264 driver code and plugin for rk3288 available somewhere
> > (based on the driver developed for Chrome OS 3.14 kernel)?
>
> well, i do saw a h264e driver for rk3288 in cros kernel:
> chromiumos/src/third_party/kernel/local/drivers/media/platform/rockchip-vpu#
> ls rk3288_vpu_hw_h264e.c
>
> and the related struct defined in v2 plugin:
> libv4l-rockchip_v2/libvepu/common/rk_venc.h:120:struct
> rk3288_h264e_reg_params {
Thanks for the reference.
I'm trying to build the v4l plugin stand alone. But in the repo I only see a
Makefile.am file. I guess it integrates with the higher level build system of
CromiumOS.
Do you have any idea how to build this v4l plugin code stand-alone?
Thanks,
baruch
--
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