video: driver: Enable low latency mode for CBR rc type

Enable low latency mode for CBR rc type.

Change-Id: I80230e5d2acab94820b1401ffa6e6fe372398397
Signed-off-by: Akshata Sahukar <asahukar@codeaurora.org>

driver/vidc/src/msm_vidc_control.c

@@ -1863,6 +1863,36 @@ int msm_vidc_adjust_blur_resolution(void *instance, struct v4l2_ctrl *ctrl)
 	return 0;
 }
 
+int msm_vidc_adjust_lowlatency_mode(void *instance, struct v4l2_ctrl *ctrl)
+{
+	struct msm_vidc_inst_capability *capability;
+	s32 adjusted_value;
+	struct msm_vidc_inst *inst = (struct msm_vidc_inst *) instance;
+	s32 rc_type = -1;
+
+	if (!inst || !inst->capabilities) {
+		d_vpr_e("%s: invalid params\n", __func__);
+		return -EINVAL;
+	}
+	capability = inst->capabilities;
+
+	adjusted_value = ctrl ? ctrl->val :
+		capability->cap[LOWLATENCY_MODE].value;
+
+	if (msm_vidc_get_parent_value(inst, LOWLATENCY_MODE, BITRATE_MODE,
+		&rc_type, __func__))
+		return -EINVAL;
+
+	if (rc_type == HFI_RC_CBR_CFR ||
+		rc_type == HFI_RC_CBR_VFR)
+		adjusted_value = 1;
+
+	msm_vidc_update_cap_value(inst, LOWLATENCY_MODE,
+		adjusted_value, __func__);
+
+	return 0;
+}
+
 int msm_vidc_adjust_session_priority(void *instance, struct v4l2_ctrl *ctrl)
 {
 	int rc = 0;