linux-kernel - [PATCH] media: venus: add support for key frame

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Date:   Tue,  9 Oct 2018 13:23:54 +0530
From:   Malathi Gottam <mgottam@...eaurora.org>
To:     stanimir.varbanov@...aro.org, hverkuil@...all.nl,
        mchehab@...nel.org
Cc:     linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, acourbot@...omium.org,
        vgarodia@...eaurora.org, mgottam@...eaurora.org
Subject: [PATCH] media: venus: add support for key frame

When client requests for a keyframe, set the property
to hardware to generate the sync frame.

Signed-off-by: Malathi Gottam <mgottam@...eaurora.org>
---
 drivers/media/platform/qcom/venus/venc_ctrls.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/media/platform/qcom/venus/venc_ctrls.c b/drivers/media/platform/qcom/venus/venc_ctrls.c
index 45910172..f332c8e 100644
--- a/drivers/media/platform/qcom/venus/venc_ctrls.c
+++ b/drivers/media/platform/qcom/venus/venc_ctrls.c
@@ -81,6 +81,8 @@ static int venc_op_s_ctrl(struct v4l2_ctrl *ctrl)
 	struct venc_controls *ctr = &inst->controls.enc;
 	u32 bframes;
 	int ret;
+	void *ptr;
+	u32 ptype;
 
 	switch (ctrl->id) {
 	case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
@@ -173,6 +175,14 @@ static int venc_op_s_ctrl(struct v4l2_ctrl *ctrl)
 
 		ctr->num_b_frames = bframes;
 		break;
+	case V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME:
+		ptype = HFI_PROPERTY_CONFIG_VENC_REQUEST_SYNC_FRAME;
+		ret = hfi_session_set_property(inst, ptype, ptr);
+
+		if (ret)
+			return ret;
+
+		break;
 	default:
 		return -EINVAL;
 	}
@@ -309,6 +319,9 @@ int venc_ctrl_init(struct venus_inst *inst)
 	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
 		V4L2_CID_MPEG_VIDEO_H264_I_PERIOD, 0, (1 << 16) - 1, 1, 0);
 
+	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
+			  V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME, 0, 0, 0, 0);
+
 	ret = inst->ctrl_handler.error;
 	if (ret)
 		goto err;
-- 
1.9.1