On Fri, 2020-08-21 at 19:36 +0900, Alexandre Courbot wrote:
> vidioc_enum_framesizes() assumes that all encoders support H.264 and VP8,
> which is not necessarily true and requires to duplicate information about
> the supported codecs which is already stored in the platform data.
>
> Fix this by referring to the platform data to find out whether a given
> format is supported. Since the supported sizes are all the same
> regardless of the format, we can then return a copy of a static value if
> the format is supported.
>
Acked-by: Tiffany Lin <tiffany.lin@xxxxxxxxxxxx>
> Signed-off-by: Alexandre Courbot <acourbot@xxxxxxxxxxxx>
> ---
> .../platform/mtk-vcodec/mtk_vcodec_enc.c | 24 ++++++++-----------
> 1 file changed, 10 insertions(+), 14 deletions(-)
>
> diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c
> index 1a981d842c19..f8d4fbe927f9 100644
> --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c
> +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c
> @@ -26,17 +26,9 @@
>
> static void mtk_venc_worker(struct work_struct *work);
>
> -static const struct mtk_codec_framesizes mtk_venc_framesizes[] = {
> - {
> - .fourcc = V4L2_PIX_FMT_H264,
> - .stepwise = { MTK_VENC_MIN_W, MTK_VENC_MAX_W, 16,
> - MTK_VENC_MIN_H, MTK_VENC_MAX_H, 16 },
> - },
> - {
> - .fourcc = V4L2_PIX_FMT_VP8,
> - .stepwise = { MTK_VENC_MIN_W, MTK_VENC_MAX_W, 16,
> - MTK_VENC_MIN_H, MTK_VENC_MAX_H, 16 },
> - },
> +static const struct v4l2_frmsize_stepwise mtk_venc_framesizes = {
> + MTK_VENC_MIN_W, MTK_VENC_MAX_W, 16,
> + MTK_VENC_MIN_H, MTK_VENC_MAX_H, 16,
> };
>
> #define NUM_SUPPORTED_FRAMESIZE ARRAY_SIZE(mtk_venc_framesizes)
> @@ -134,17 +126,21 @@ static int vidioc_enum_fmt(struct v4l2_fmtdesc *f,
> static int vidioc_enum_framesizes(struct file *file, void *fh,
> struct v4l2_frmsizeenum *fsize)
> {
> + const struct mtk_vcodec_enc_pdata *pdata =
> + fh_to_ctx(fh)->dev->venc_pdata;
> int i = 0;
>
> if (fsize->index != 0)
> return -EINVAL;
>
> - for (i = 0; i < NUM_SUPPORTED_FRAMESIZE; ++i) {
> - if (fsize->pixel_format != mtk_venc_framesizes[i].fourcc)
> + for (i = 0; i < pdata->num_capture_formats; ++i) {
> + const struct mtk_video_fmt *fmt = &pdata->capture_formats[i];
> +
> + if (fsize->pixel_format != fmt->fourcc)
> continue;
>
> fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
> - fsize->stepwise = mtk_venc_framesizes[i].stepwise;
> + fsize->stepwise = mtk_venc_framesizes;
> return 0;
> }
>
