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Commit 2cec0dfa authored by Ruchit Sharma's avatar Ruchit Sharma Committed by Chien-Yu Chen
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Camera2Client: flush requests in stopPreviewL 

Requests queued in the pipeline have little meaning after the app
calls stopPreview(). Flushing will help improve the switch KPI.

bug 17340914

Change-Id: I899d69aa3b0fd41f028760290a81013297712fed
parent 8ddb0223

services/camera/libcameraservice/api1/Camera2Client.cpp

+9 −0
Original line number Diff line number Diff line
@@ -917,6 +917,15 @@ void Camera2Client::stopPreviewL() { 
                ALOGE("%s: Camera %d: Can't stop streaming: %s (%d)",

                        __FUNCTION__, mCameraId, strerror(-res), res);

            }



            // Flush all in-process captures and buffer in order to stop

            // preview faster.

            res = mDevice->flush();

            if (res != OK) {

                ALOGE("%s: Camera %d: Unable to flush pending requests: %s (%d)",

                        __FUNCTION__, mCameraId, strerror(-res), res);

            }



            res = mDevice->waitUntilDrained();

            if (res != OK) {

                ALOGE("%s: Camera %d: Waiting to stop streaming failed: %s (%d)",