Commit 096573e4 authored by Viswanath Boma's avatar Viswanath Boma Committed by Mauro Carvalho Chehab
Browse files

media: venus : Addition of control support - V4L2_CID_MIN_BUFFERS_FOR_OUTPUT 



V4l2 encoder compliance expecting minimum buffers support for
the application to allocate buffers as per the control support values.

Signed-off-by: default avatarViswanath Boma <quic_vboma@quicinc.com>
Signed-off-by: default avatarVikash Garodia <quic_vgarodia@quicinc.com>
Signed-off-by: default avatarStanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@kernel.org>
parent 014a6b27

drivers/media/platform/qcom/venus/venc_ctrls.c

+26 −1
Original line number Diff line number Diff line
@@ -8,6 +8,7 @@ 


#include "core.h"

#include "venc.h"

#include "helpers.h"



#define BITRATE_MIN		32000

#define BITRATE_MAX		160000000
@@ -348,8 +349,29 @@ static int venc_op_s_ctrl(struct v4l2_ctrl *ctrl) 
	return 0;

}



static int venc_op_g_volatile_ctrl(struct v4l2_ctrl *ctrl)

{

	struct venus_inst *inst = ctrl_to_inst(ctrl);

	struct hfi_buffer_requirements bufreq;

	enum hfi_version ver = inst->core->res->hfi_version;

	int ret;



	switch (ctrl->id) {

	case V4L2_CID_MIN_BUFFERS_FOR_OUTPUT:

		ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);

		if (!ret)

			ctrl->val = HFI_BUFREQ_COUNT_MIN(&bufreq, ver);

		break;

	default:

		return -EINVAL;

	}



	return 0;

}



static const struct v4l2_ctrl_ops venc_ctrl_ops = {

	.s_ctrl = venc_op_s_ctrl,

	.g_volatile_ctrl = venc_op_g_volatile_ctrl,

};



int venc_ctrl_init(struct venus_inst *inst)
@@ -360,7 +382,7 @@ int venc_ctrl_init(struct venus_inst *inst) 
		{ 16000, 34500, 3000 }, 15635, 16450, 10000000, 500,

	};



	ret = v4l2_ctrl_handler_init(&inst->ctrl_handler, 58);

	ret = v4l2_ctrl_handler_init(&inst->ctrl_handler, 59);

	if (ret)

		return ret;
@@ -440,6 +462,9 @@ int venc_ctrl_init(struct venus_inst *inst) 
		V4L2_MPEG_VIDEO_VP8_PROFILE_3,

		0, V4L2_MPEG_VIDEO_VP8_PROFILE_0);



	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,

			  V4L2_CID_MIN_BUFFERS_FOR_OUTPUT, 4, 11, 1, 4);



	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,

		V4L2_CID_MPEG_VIDEO_BITRATE, BITRATE_MIN, BITRATE_MAX,

		BITRATE_STEP, BITRATE_DEFAULT);