linux-kernel - Re: [PATCH] drivers: meson: vdec: add VP9 support to GXM

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Date:   Thu, 10 Feb 2022 10:34:53 +0100
From:   Neil Armstrong <narmstrong@...libre.com>
To:     Christian Hewitt <christianshewitt@...il.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Kevin Hilman <khilman@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        linux-media@...r.kernel.org, linux-amlogic@...ts.infradead.org,
        devel@...verdev.osuosl.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drivers: meson: vdec: add VP9 support to GXM

On 09/02/2022 16:31, Christian Hewitt wrote:
> VP9 support for GXM appears to have been missed from the original
> codec submission [0] but it works well, so let's add support.
> 
> [0] https://github.com/torvalds/linux/commit/00c43088aa680989407b6afbda295f67b3f123f1
> 
> Signed-off-by: Christian Hewitt <christianshewitt@...il.com>
> ---
> Tested with LibreELEC 11 nightly 'AMLGX' dev images for Khadas VIM2
> and WeTek Core2 GXM devices which can be found here [1]. The images
> combine Linux 5.16.y [2] with Kodi v20 [3] and FFmpeg 4.4 [4] which
> notably includes many V4L2 refinements for stability and usability.
> 
> [1] https://test.libreelec.tv/
> [2] https://github.com/chewitt/linux/commits/amlogic-5.16.y
> [3] https://github.com/xbmc/xbmc/
> [4] https://github.com/jc-kynesim/rpi-ffmpeg/commits/dev/4.4/rpi_import_1
> 
>   drivers/staging/media/meson/vdec/vdec_platform.c | 12 ++++++++++++
>   1 file changed, 12 insertions(+)
> 
> diff --git a/drivers/staging/media/meson/vdec/vdec_platform.c b/drivers/staging/media/meson/vdec/vdec_platform.c
> index eabbebab2da2..88c9d72e1c83 100644
> --- a/drivers/staging/media/meson/vdec/vdec_platform.c
> +++ b/drivers/staging/media/meson/vdec/vdec_platform.c
> @@ -103,6 +103,18 @@ static const struct amvdec_format vdec_formats_gxl[] = {
>   
>   static const struct amvdec_format vdec_formats_gxm[] = {
>   	{
> +		.pixfmt = V4L2_PIX_FMT_VP9,
> +		.min_buffers = 16,
> +		.max_buffers = 24,
> +		.max_width = 3840,
> +		.max_height = 2160,
> +		.vdec_ops = &vdec_hevc_ops,
> +		.codec_ops = &codec_vp9_ops,
> +		.firmware_path = "meson/vdec/gxl_vp9.bin",
> +		.pixfmts_cap = { V4L2_PIX_FMT_NV12M, 0 },
> +		.flags = V4L2_FMT_FLAG_COMPRESSED |
> +			 V4L2_FMT_FLAG_DYN_RESOLUTION,
> +	}, {
>   		.pixfmt = V4L2_PIX_FMT_H264,
>   		.min_buffers = 2,
>   		.max_buffers = 24,


Acked-by: Neil Armstrong <narmstrong@...libre.com>