linux-kernel - [PATCH v3 1/2] media: venus: Helper function for dynamically updating bitrate

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Message-Id: <20240814-submit-v3-1-f7d05e3e8560@chromium.org>
Date: Wed, 14 Aug 2024 15:14:04 -0700
From: Fritz Koenig <frkoenig@...omium.org>
To: Stanimir Varbanov <stanimir.k.varbanov@...il.com>, 
 Vikash Garodia <quic_vgarodia@...cinc.com>, 
 Bryan O'Donoghue <bryan.odonoghue@...aro.org>, 
 Mauro Carvalho Chehab <mchehab@...nel.org>, 
 Dikshita Agarwal <quic_dikshita@...cinc.com>
Cc: Nathan Hebert <nhebert@...omium.org>, linux-media@...r.kernel.org, 
 linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Fritz Koenig <frkoenig@...omium.org>
Subject: [PATCH v3 1/2] media: venus: Helper function for dynamically
 updating bitrate

Move the dynamic bitrate updating functionality to a separate function
so that it can be shared.

No functionality changes.

Signed-off-by: Fritz Koenig <frkoenig@...omium.org>
---
 drivers/media/platform/qcom/venus/venc_ctrls.c | 34 +++++++++++++++-----------
 1 file changed, 20 insertions(+), 14 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/venc_ctrls.c b/drivers/media/platform/qcom/venus/venc_ctrls.c
index d9d2a293f3ef..3e1f6f26eddf 100644
--- a/drivers/media/platform/qcom/venus/venc_ctrls.c
+++ b/drivers/media/platform/qcom/venus/venc_ctrls.c
@@ -67,12 +67,28 @@ static int venc_calc_bpframes(u32 gop_size, u32 conseq_b, u32 *bf, u32 *pf)
 	return 0;
 }
 
+static int dynamic_bitrate_update(struct venus_inst *inst, u32 bitrate,
+				  u32 layer_id)
+{
+	int ret = 0;
+
+	mutex_lock(&inst->lock);
+	if (inst->streamon_out && inst->streamon_cap) {
+		u32 ptype = HFI_PROPERTY_CONFIG_VENC_TARGET_BITRATE;
+		struct hfi_bitrate brate = { .bitrate = bitrate, .layer_id = layer_id };
+
+		ret = hfi_session_set_property(inst, ptype, &brate);
+	}
+	mutex_unlock(&inst->lock);
+
+	return ret;
+}
+
 static int venc_op_s_ctrl(struct v4l2_ctrl *ctrl)
 {
 	struct venus_inst *inst = ctrl_to_inst(ctrl);
 	struct venc_controls *ctr = &inst->controls.enc;
 	struct hfi_enable en = { .enable = 1 };
-	struct hfi_bitrate brate;
 	struct hfi_ltr_use ltr_use;
 	struct hfi_ltr_mark ltr_mark;
 	u32 bframes;
@@ -85,19 +101,9 @@ static int venc_op_s_ctrl(struct v4l2_ctrl *ctrl)
 		break;
 	case V4L2_CID_MPEG_VIDEO_BITRATE:
 		ctr->bitrate = ctrl->val;
-		mutex_lock(&inst->lock);
-		if (inst->streamon_out && inst->streamon_cap) {
-			ptype = HFI_PROPERTY_CONFIG_VENC_TARGET_BITRATE;
-			brate.bitrate = ctr->bitrate;
-			brate.layer_id = 0;
-
-			ret = hfi_session_set_property(inst, ptype, &brate);
-			if (ret) {
-				mutex_unlock(&inst->lock);
-				return ret;
-			}
-		}
-		mutex_unlock(&inst->lock);
+		ret = dynamic_bitrate_update(inst, ctr->bitrate, 0);
+		if (ret)
+			return ret;
 		break;
 	case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK:
 		ctr->bitrate_peak = ctrl->val;

-- 
2.46.0.184.g6999bdac58-goog