[PATCH v2] media: venus: dynamic handling of bitrate

From: Malathi Gottam
Date: Fri Nov 02 2018 - 08:43:25 EST


Any request for a change in bitrate after both planes
are streamed on is handled by setting the target bitrate
property to hardware.

Signed-off-by: Malathi Gottam <mgottam@xxxxxxxxxxxxxx>
---
drivers/media/platform/qcom/venus/venc_ctrls.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)

diff --git a/drivers/media/platform/qcom/venus/venc_ctrls.c b/drivers/media/platform/qcom/venus/venc_ctrls.c
index 45910172..f90a34e 100644
--- a/drivers/media/platform/qcom/venus/venc_ctrls.c
+++ b/drivers/media/platform/qcom/venus/venc_ctrls.c
@@ -79,7 +79,9 @@ 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_bitrate brate;
u32 bframes;
+ u32 ptype;
int ret;

switch (ctrl->id) {
@@ -88,6 +90,19 @@ 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);
break;
case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK:
ctr->bitrate_peak = ctrl->val;
--
1.9.1