h/q/d: Add binder-api support to change refresh-rate.
** Now, there are two ways for the clients to request
change in the refresh-rate of the target.
(a) Using metadata of the input-buffer.
(b) Using binder api added as part of this change.
** configureDynRefreshRate binder api provides three
op-modes which can be used as following:
(a) "DISABLE_METADATA_DYN_REFRESH_RATE" can be used by the
clients, to disallow display-hal from honoring refresh-rate
change requests, made by video-clients using the metadata.
For ex: This can be used during streaming use-cases
(Dash-playback, playback at WFD-sink,etc) where the idea
is not to change the refresh-rate, though video-client
requests for it using metadata, as video-clients cannot
distinguish between streaming and non-streaming usecases.
Usage:
adb shell service call display.qservice 18 i32 0 i32 0
(b) "ENABLE_METADATA_DYN_REFRESH_RATE" can be used by the
clients after DISABLE_METADATA_DYN_REFRESH_RATE, to once
again allow display-hal to be able to change refresh-rate
based on requests made by the video-clients using metadata.
For ex: This can be used by clients( Dash-playback,
WFD, etc) once they are done with their use-case.
WFD-framework will also use this when the wfd-session is
paused.
Usage:
adb shell service call display.qservice 18 i32 1 i32 0
(c) "SET_BINDER_DYN_REFRESH_RATE" can be used by the clients
to change the refresh-rate of the target using binder-api,
provided they have disallowed display from honoring the
refresh-rate requests made using metadata.
In other words, changing refresh-rate through this binder
api and using metadata approach cannot co-exist together.
Usage:
adb shell service call display.qservice 18 i32 2 i32 45
-- The refresh-rate set here will correspond to 45fps.
** Added property "persist.metadata_dynfps.disable" that
can be used by OEM's, to disable setting of refresh-rate
using the metadata.
Change-Id: I767fa174dcf1cfd061a578e96cd68af28e7dd36b
diff --git a/libqdutils/display_config.cpp b/libqdutils/display_config.cpp
index 4fdf19e..03a7046 100644
--- a/libqdutils/display_config.cpp
+++ b/libqdutils/display_config.cpp
@@ -152,6 +152,24 @@
return err;
}
+int configureDynRefreshRate(uint32_t op, uint32_t refreshRate) {
+ status_t err = (status_t) FAILED_TRANSACTION;
+ sp<IQService> binder = getBinder();
+ Parcel inParcel, outParcel;
+ inParcel.writeInt32(op);
+ inParcel.writeInt32(refreshRate);
+
+ if(binder != NULL) {
+ err = binder->dispatch(IQService::CONFIGURE_DYN_REFRESH_RATE,
+ &inParcel, &outParcel);
+ }
+
+ if(err)
+ ALOGE("%s: Failed setting op %d err=%d", __FUNCTION__, op, err);
+
+ return err;
+}
+
}; //namespace
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