camera2: Fix video snapshot for HAL 2.* devices.
Bug: 15408128
- Lazily destroy ZSL stream when ZslProcessor is updated, or
when the camera client is disconnected, allowing HAL 2.*
devices that rely on the ZSL stream to capture video snapshots
to function correctly.
Change-Id: Ia5cf14c62acda4d9c640440dc5b8e0796dc0b3fa
diff --git a/services/camera/libcameraservice/Android.mk b/services/camera/libcameraservice/Android.mk
index 9d6ab23..e184d97 100644
--- a/services/camera/libcameraservice/Android.mk
+++ b/services/camera/libcameraservice/Android.mk
@@ -34,6 +34,7 @@
api1/client2/JpegProcessor.cpp \
api1/client2/CallbackProcessor.cpp \
api1/client2/ZslProcessor.cpp \
+ api1/client2/ZslProcessorInterface.cpp \
api1/client2/BurstCapture.cpp \
api1/client2/JpegCompressor.cpp \
api1/client2/CaptureSequencer.cpp \
diff --git a/services/camera/libcameraservice/api1/Camera2Client.cpp b/services/camera/libcameraservice/api1/Camera2Client.cpp
index bc40971..40c8e5d 100644
--- a/services/camera/libcameraservice/api1/Camera2Client.cpp
+++ b/services/camera/libcameraservice/api1/Camera2Client.cpp
@@ -434,6 +434,9 @@
mCallbackProcessor->deleteStream();
mZslProcessor->deleteStream();
+ // Remove all ZSL stream state before disconnect; needed to work around b/15408128.
+ mZslProcessor->disconnect();
+
ALOGV("Camera %d: Disconnecting device", mCameraId);
mDevice->disconnect();
diff --git a/services/camera/libcameraservice/api1/client2/ZslProcessor.cpp b/services/camera/libcameraservice/api1/client2/ZslProcessor.cpp
index 8fb876e..bb72206 100644
--- a/services/camera/libcameraservice/api1/client2/ZslProcessor.cpp
+++ b/services/camera/libcameraservice/api1/client2/ZslProcessor.cpp
@@ -48,6 +48,7 @@
mDevice(client->getCameraDevice()),
mSequencer(sequencer),
mId(client->getCameraId()),
+ mDeleted(false),
mZslBufferAvailable(false),
mZslStreamId(NO_STREAM),
mZslReprocessStreamId(NO_STREAM),
@@ -62,7 +63,7 @@
ZslProcessor::~ZslProcessor() {
ALOGV("%s: Exit", __FUNCTION__);
- deleteStream();
+ disconnect();
}
void ZslProcessor::onFrameAvailable() {
@@ -153,7 +154,7 @@
mId, strerror(-res), res);
return res;
}
- if (currentWidth != (uint32_t)params.fastInfo.arrayWidth ||
+ if (mDeleted || currentWidth != (uint32_t)params.fastInfo.arrayWidth ||
currentHeight != (uint32_t)params.fastInfo.arrayHeight) {
res = device->deleteReprocessStream(mZslReprocessStreamId);
if (res != OK) {
@@ -175,6 +176,8 @@
}
}
+ mDeleted = false;
+
if (mZslStreamId == NO_STREAM) {
// Create stream for HAL production
// TODO: Sort out better way to select resolution for ZSL
@@ -209,6 +212,14 @@
status_t ZslProcessor::deleteStream() {
ATRACE_CALL();
+ Mutex::Autolock l(mInputMutex);
+ // WAR(b/15408128): do not delete stream unless client is being disconnected.
+ mDeleted = true;
+ return OK;
+}
+
+status_t ZslProcessor::disconnect() {
+ ATRACE_CALL();
status_t res;
Mutex::Autolock l(mInputMutex);
diff --git a/services/camera/libcameraservice/api1/client2/ZslProcessor.h b/services/camera/libcameraservice/api1/client2/ZslProcessor.h
index f4cf0c8..b6533cf 100644
--- a/services/camera/libcameraservice/api1/client2/ZslProcessor.h
+++ b/services/camera/libcameraservice/api1/client2/ZslProcessor.h
@@ -67,6 +67,7 @@
status_t updateStream(const Parameters ¶ms);
status_t deleteStream();
+ status_t disconnect();
int getStreamId() const;
status_t pushToReprocess(int32_t requestId);
@@ -86,6 +87,8 @@
wp<CaptureSequencer> mSequencer;
int mId;
+ bool mDeleted;
+
mutable Mutex mInputMutex;
bool mZslBufferAvailable;
Condition mZslBufferAvailableSignal;
diff --git a/services/camera/libcameraservice/api1/client2/ZslProcessorInterface.cpp b/services/camera/libcameraservice/api1/client2/ZslProcessorInterface.cpp
new file mode 100644
index 0000000..9efeaba
--- /dev/null
+++ b/services/camera/libcameraservice/api1/client2/ZslProcessorInterface.cpp
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "ZslProcessorInterface.h"
+
+namespace android {
+namespace camera2 {
+
+status_t ZslProcessorInterface::disconnect() {
+ return OK;
+}
+
+}; //namespace camera2
+}; //namespace android
+
diff --git a/services/camera/libcameraservice/api1/client2/ZslProcessorInterface.h b/services/camera/libcameraservice/api1/client2/ZslProcessorInterface.h
index 183c0c2..9e266e7 100644
--- a/services/camera/libcameraservice/api1/client2/ZslProcessorInterface.h
+++ b/services/camera/libcameraservice/api1/client2/ZslProcessorInterface.h
@@ -19,6 +19,8 @@
#include <utils/Errors.h>
#include <utils/RefBase.h>
+#include <utils/String16.h>
+#include <utils/Vector.h>
namespace android {
namespace camera2 {
@@ -37,6 +39,9 @@
// Delete the underlying CameraDevice streams
virtual status_t deleteStream() = 0;
+ // Clear any additional state necessary before the CameraDevice is disconnected
+ virtual status_t disconnect();
+
/**
* Submits a ZSL capture request (id = requestId)
*