Le lundi 27 juin 2022 à 19:23 +0800, Chen-Yu Tsai a écrit :
> This partially reverts commit b018be06f3c7 ("media: mediatek: vcodec:
> Read max resolution from dec_capability"). In this commit, the maximum
> resolution ended up being a function of both the firmware capability and
> the current set format.
>
> However, frame size enumeration for output (coded) formats should not
> depend on the format set, but should return supported resolutions for
> the format requested by userspace.
>
> Fix this so that the driver returns the supported resolutions correctly,
> even if the instance only has default settings, or if the output format
> is currently set to VP8F, which does not support 4K.
>
> Fixes: b018be06f3c7 ("media: mediatek: vcodec: Read max resolution from dec_capability")
> Signed-off-by: Chen-Yu Tsai <wenst@xxxxxxxxxxxx>
> ---
> drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.c | 2 --
> .../platform/mediatek/vcodec/mtk_vcodec_dec_stateless.c | 7 +++++++
> 2 files changed, 7 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.c b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.c
> index 5d6fdf18c3a6..fcb4b8131c49 100644
> --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.c
> +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.c
> @@ -595,8 +595,6 @@ static int vidioc_enum_framesizes(struct file *file, void *priv,
> fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
> fsize->stepwise = dec_pdata->vdec_framesizes[i].stepwise;
>
> - fsize->stepwise.max_width = ctx->max_width;
> - fsize->stepwise.max_height = ctx->max_height;
> mtk_v4l2_debug(1, "%x, %d %d %d %d %d %d",
> ctx->dev->dec_capability,
> fsize->stepwise.min_width,
> diff --git a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_stateless.c b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_stateless.c
> index 16d55785d84b..9a4d3e3658aa 100644
> --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_stateless.c
> +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_stateless.c
> @@ -360,6 +360,13 @@ static void mtk_vcodec_add_formats(unsigned int fourcc,
>
> mtk_vdec_framesizes[count_framesizes].fourcc = fourcc;
> mtk_vdec_framesizes[count_framesizes].stepwise = stepwise_fhd;
While at it, can you constify stepwise_fhd, it is scary to think that someone
could modify it and cause big headache.
> + if (!(ctx->dev->dec_capability & VCODEC_CAPABILITY_4K_DISABLED) &&
> + fourcc != V4L2_PIX_FMT_VP8_FRAME) {
> + mtk_vdec_framesizes[count_framesizes].stepwise.max_width =
> + VCODEC_DEC_4K_CODED_WIDTH;
> + mtk_vdec_framesizes[count_framesizes].stepwise.max_height =
> + VCODEC_DEC_4K_CODED_HEIGHT;
> + }
> num_framesizes++;
> break;
> case V4L2_PIX_FMT_MM21:
