Hi Malathi,
On Tue, Oct 9, 2018 at 4:58 PM Malathi Gottam <mgottam@xxxxxxxxxxxxxx> wrote:
>
> For lower resolutions, incase of encoder, the compressed
> frame size is more than half of the corresponding input
> YUV. Keep the size as same as YUV considering worst case.
>
> Signed-off-by: Malathi Gottam <mgottam@xxxxxxxxxxxxxx>
> ---
> drivers/media/platform/qcom/venus/helpers.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/media/platform/qcom/venus/helpers.c b/drivers/media/platform/qcom/venus/helpers.c
> index 2679adb..05c5423 100644
> --- a/drivers/media/platform/qcom/venus/helpers.c
> +++ b/drivers/media/platform/qcom/venus/helpers.c
> @@ -649,7 +649,7 @@ u32 venus_helper_get_framesz(u32 v4l2_fmt, u32 width, u32 height)
> }
>
> if (compressed) {
> - sz = ALIGN(height, 32) * ALIGN(width, 32) * 3 / 2 / 2;
> + sz = ALIGN(height, 32) * ALIGN(width, 32) * 3 / 2;
> return ALIGN(sz, SZ_4K);
> }
Note that the driver should not enforce one particular buffer size for
bitstream buffers unless it's a workaround for broken firmware or
hardware. The userspace should be able to select the desired size.
Best regards,
Tomasz
