Re: [PATCH 2/2] media: iris: add support for vbv delay

[Vikash Garodia]

On 7/30/2026 8:25 PM, Sachin Kumar Garg wrote:
> Add the VBV_DELAY instance capability for the HFI Gen2 encoder,
> exposed to userspace via V4L2_CID_MPEG_VIDEO_VBV_DELAY and mapped to
> HFI_PROP_VBV_DELAY through a new iris_set_vbv_delay(). The property
> is only meaningful for CBR rate-control modes.
>
> Low VBV delay values (34-100 ms) require the encoder to run
> with a single video pipe, so extend iris_set_pipe() to force
> work_route to 1 whenever the configured VBV_DELAY falls in that
> range.
>
> Signed-off-by: Sachin Kumar Garg<sachin.garg@xxxxxxxxxxxxxxxx>
> ---
>   drivers/media/platform/qcom/iris/iris_ctrls.c      | 31 ++++++++++++++++++++++
>   drivers/media/platform/qcom/iris/iris_ctrls.h      |  1 +
>   drivers/media/platform/qcom/iris/iris_hfi_gen2.c   | 12 ++++++++-
>   .../platform/qcom/iris/iris_hfi_gen2_defines.h     |  1 +
>   .../platform/qcom/iris/iris_platform_common.h      |  1 +
>   5 files changed, 45 insertions(+), 1 deletion(-)

Reviewed-by: Vikash Garodia <vikash.garodia@xxxxxxxxxxxxxxxx>