commit abe5ea1b0bdca448713ecd0fb06e3a64d81822ea
author Shuzhen Wang <shuzhenwang@google.com> Thu Dec 15 22:38:07 2022 -0800
committer Shuzhen Wang <shuzhenwang@google.com> Mon Jan 09 20:22:55 2023 -0800
tree 721d6d22d8cc606e57bd6b32e2c2ee1e8d6a1a26
parent bae7e457c296aa8a64826aa355e784a78419d521

Camera: Add adb shell cmd to override stream use case

Adding ability to override stream use cases using adb makes testing
3P apps' stream use case behavior easier. 3P apps don't need to make code
change.

Example:

adb shell cmd media.camera set-stream-use-case-override STILL_CAPTURE \
PREVIEW_VIDEO_STILL
adb shell cmd media.camera clear-stream-use-case-override

Test: Run social media app after set-stream-use-case-override
Bug: 262286032
Change-Id: Ibed4fcb7b1983461f060ca8fc452e2ebbf9cfc81
Merged-In: Ibed4fcb7b1983461f060ca8fc452e2ebbf9cfc81

services/camera/libcameraservice/device3/Camera3Device.cpp

diff --git a/services/camera/libcameraservice/device3/Camera3Device.cpp b/services/camera/libcameraservice/device3/Camera3Device.cpp
index f10d41b..1309369 100644
--- a/services/camera/libcameraservice/device3/Camera3Device.cpp
+++ b/services/camera/libcameraservice/device3/Camera3Device.cpp
@@ -2337,6 +2337,9 @@
         tryRemoveFakeStreamLocked();
     }
 
+    // Override stream use case based on "adb shell command"
+    overrideStreamUseCaseLocked();
+
     // Start configuring the streams
     ALOGV("%s: Camera %s: Starting stream configuration", __FUNCTION__, mId.string());
 
@@ -4120,6 +4123,19 @@
     return OK;
 }
 
+void Camera3Device::setStreamUseCaseOverrides(
+        const std::vector<int64_t>& useCaseOverrides) {
+    Mutex::Autolock il(mInterfaceLock);
+    Mutex::Autolock l(mLock);
+    mStreamUseCaseOverrides = useCaseOverrides;
+}
+
+void Camera3Device::clearStreamUseCaseOverrides() {
+    Mutex::Autolock il(mInterfaceLock);
+    Mutex::Autolock l(mLock);
+    mStreamUseCaseOverrides.clear();
+}
+
 void Camera3Device::RequestThread::cleanUpFailedRequests(bool sendRequestError) {
     if (mNextRequests.empty()) {
         return;
@@ -5233,4 +5249,55 @@
     return mInjectionMethods->stopInjection();
 }
 
+void Camera3Device::overrideStreamUseCaseLocked() {
+    if (mStreamUseCaseOverrides.size() == 0) {
+        return;
+    }
+
+    // Start from an array of indexes in mStreamUseCaseOverrides, and sort them
+    // based first on size, and second on formats of [JPEG, RAW, YUV, PRIV].
+    std::vector<int> outputStreamsIndices(mOutputStreams.size());
+    for (size_t i = 0; i < outputStreamsIndices.size(); i++) {
+        outputStreamsIndices[i] = i;
+    }
+
+    std::sort(outputStreamsIndices.begin(), outputStreamsIndices.end(),
+            [&](int a, int b) -> bool {
+
+                auto formatScore = [](int format) {
+                    switch (format) {
+                    case HAL_PIXEL_FORMAT_BLOB:
+                        return 4;
+                    case HAL_PIXEL_FORMAT_RAW16:
+                    case HAL_PIXEL_FORMAT_RAW10:
+                    case HAL_PIXEL_FORMAT_RAW12:
+                        return 3;
+                    case HAL_PIXEL_FORMAT_YCBCR_420_888:
+                        return 2;
+                    case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED:
+                        return 1;
+                    default:
+                        return 0;
+                    }
+                };
+
+                int sizeA = mOutputStreams[a]->getWidth() * mOutputStreams[a]->getHeight();
+                int sizeB = mOutputStreams[a]->getWidth() * mOutputStreams[a]->getHeight();
+                int formatAScore = formatScore(mOutputStreams[a]->getFormat());
+                int formatBScore = formatScore(mOutputStreams[b]->getFormat());
+                if (sizeA > sizeB ||
+                        (sizeA == sizeB && formatAScore >= formatBScore)) {
+                    return true;
+                } else {
+                    return false;
+                }
+            });
+
+    size_t overlapSize = std::min(mStreamUseCaseOverrides.size(), mOutputStreams.size());
+    for (size_t i = 0; i < mOutputStreams.size(); i++) {
+        mOutputStreams[outputStreamsIndices[i]]->setStreamUseCase(
+                mStreamUseCaseOverrides[std::min(i, overlapSize-1)]);
+    }
+}
+
 }; // namespace android