Camera3: Add ZSL stream support
Bug: 8563838
Change-Id: I2feda142ff5172aba17ade5c8d502f9bb5d5b766
diff --git a/services/camera/libcameraservice/camera3/Camera3ZslStream.cpp b/services/camera/libcameraservice/camera3/Camera3ZslStream.cpp
index e8a5ca6..0345d5b 100644
--- a/services/camera/libcameraservice/camera3/Camera3ZslStream.cpp
+++ b/services/camera/libcameraservice/camera3/Camera3ZslStream.cpp
@@ -18,70 +18,652 @@
#define ATRACE_TAG ATRACE_TAG_CAMERA
//#define LOG_NDEBUG 0
+// This is needed for stdint.h to define INT64_MAX in C++
+#define __STDC_LIMIT_MACROS
+
#include <utils/Log.h>
#include <utils/Trace.h>
#include "Camera3ZslStream.h"
+#ifndef container_of
+#define container_of(ptr, type, member) \
+ (type *)((char*)(ptr) - offsetof(type, member))
+#endif
+
+typedef android::RingBufferConsumer::PinnedBufferItem PinnedBufferItem;
+
namespace android {
namespace camera3 {
+namespace {
+struct TimestampFinder : public RingBufferConsumer::RingBufferComparator {
+ typedef RingBufferConsumer::BufferInfo BufferInfo;
+
+ enum {
+ SELECT_I1 = -1,
+ SELECT_I2 = 1,
+ SELECT_NEITHER = 0,
+ };
+
+ TimestampFinder(nsecs_t timestamp) : mTimestamp(timestamp) {}
+ ~TimestampFinder() {}
+
+ template <typename T>
+ static void swap(T& a, T& b) {
+ T tmp = a;
+ a = b;
+ b = tmp;
+ }
+
+ /**
+ * Try to find the best candidate for a ZSL buffer.
+ * Match priority from best to worst:
+ * 1) Timestamps match.
+ * 2) Timestamp is closest to the needle (and lower).
+ * 3) Timestamp is closest to the needle (and higher).
+ *
+ */
+ virtual int compare(const BufferInfo *i1,
+ const BufferInfo *i2) const {
+ // Try to select non-null object first.
+ if (i1 == NULL) {
+ return SELECT_I2;
+ } else if (i2 == NULL) {
+ return SELECT_I1;
+ }
+
+ // Best result: timestamp is identical
+ if (i1->mTimestamp == mTimestamp) {
+ return SELECT_I1;
+ } else if (i2->mTimestamp == mTimestamp) {
+ return SELECT_I2;
+ }
+
+ const BufferInfo* infoPtrs[2] = {
+ i1,
+ i2
+ };
+ int infoSelectors[2] = {
+ SELECT_I1,
+ SELECT_I2
+ };
+
+ // Order i1,i2 so that always i1.timestamp < i2.timestamp
+ if (i1->mTimestamp > i2->mTimestamp) {
+ swap(infoPtrs[0], infoPtrs[1]);
+ swap(infoSelectors[0], infoSelectors[1]);
+ }
+
+ // Second best: closest (lower) timestamp
+ if (infoPtrs[1]->mTimestamp < mTimestamp) {
+ return infoSelectors[1];
+ } else if (infoPtrs[0]->mTimestamp < mTimestamp) {
+ return infoSelectors[0];
+ }
+
+ // Worst: closest (higher) timestamp
+ return infoSelectors[0];
+
+ /**
+ * The above cases should cover all the possibilities,
+ * and we get an 'empty' result only if the ring buffer
+ * was empty itself
+ */
+ }
+
+ const nsecs_t mTimestamp;
+}; // struct TimestampFinder
+} // namespace anonymous
+
Camera3ZslStream::Camera3ZslStream(int id, uint32_t width, uint32_t height,
int depth) :
Camera3Stream(id, CAMERA3_STREAM_BIDIRECTIONAL, width, height, 0,
HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED),
- mDepth(depth) {
+ mDepth(depth),
+ mProducer(new RingBufferConsumer(GRALLOC_USAGE_HW_CAMERA_ZSL,
+ depth)),
+ mConsumer(new Surface(mProducer->getProducerInterface())),
+ //mTransform(0),
+ mTotalBufferCount(0),
+ mDequeuedBufferCount(0),
+ mFrameCount(0),
+ mLastTimestamp(0),
+ mCombinedFence(new Fence()) {
+}
+
+Camera3ZslStream::~Camera3ZslStream() {
+ disconnectLocked();
}
status_t Camera3ZslStream::getBufferLocked(camera3_stream_buffer *buffer) {
- (void) buffer;
- ALOGE("%s: Not implemented", __FUNCTION__);
- return INVALID_OPERATION;
+ // same as output stream code
+ ATRACE_CALL();
+ status_t res;
+
+ // Allow dequeue during IN_[RE]CONFIG for registration
+ if (mState != STATE_CONFIGURED &&
+ mState != STATE_IN_CONFIG && mState != STATE_IN_RECONFIG) {
+ ALOGE("%s: Stream %d: Can't get buffers in unconfigured state %d",
+ __FUNCTION__, mId, mState);
+ return INVALID_OPERATION;
+ }
+
+ // Only limit dequeue amount when fully configured
+ if (mState == STATE_CONFIGURED &&
+ mDequeuedBufferCount == camera3_stream::max_buffers) {
+ ALOGE("%s: Stream %d: Already dequeued maximum number of simultaneous"
+ " buffers (%d)", __FUNCTION__, mId,
+ camera3_stream::max_buffers);
+ return INVALID_OPERATION;
+ }
+
+ ANativeWindowBuffer* anb;
+ int fenceFd;
+
+ res = mConsumer->dequeueBuffer(mConsumer.get(), &anb, &fenceFd);
+ if (res != OK) {
+ ALOGE("%s: Stream %d: Can't dequeue next output buffer: %s (%d)",
+ __FUNCTION__, mId, strerror(-res), res);
+ return res;
+ }
+
+ // Handing out a raw pointer to this object. Increment internal refcount.
+ incStrong(this);
+ buffer->stream = this;
+ buffer->buffer = &(anb->handle);
+ buffer->acquire_fence = fenceFd;
+ buffer->release_fence = -1;
+ buffer->status = CAMERA3_BUFFER_STATUS_OK;
+
+ mDequeuedBufferCount++;
+
+ return OK;
}
status_t Camera3ZslStream::returnBufferLocked(
const camera3_stream_buffer &buffer,
nsecs_t timestamp) {
- (void) buffer;
- (void) timestamp;
- ALOGE("%s: Not implemented", __FUNCTION__);
- return INVALID_OPERATION;
+ // same as output stream code
+ ATRACE_CALL();
+ status_t res;
+
+ // returnBuffer may be called from a raw pointer, not a sp<>, and we'll be
+ // decrementing the internal refcount next. In case this is the last ref, we
+ // might get destructed on the decStrong(), so keep an sp around until the
+ // end of the call - otherwise have to sprinkle the decStrong on all exit
+ // points.
+ sp<Camera3ZslStream> keepAlive(this);
+ decStrong(this);
+
+ // Allow buffers to be returned in the error state, to allow for disconnect
+ // and in the in-config states for registration
+ if (mState == STATE_CONSTRUCTED) {
+ ALOGE("%s: Stream %d: Can't return buffers in unconfigured state %d",
+ __FUNCTION__, mId, mState);
+ return INVALID_OPERATION;
+ }
+ if (mDequeuedBufferCount == 0) {
+ ALOGE("%s: Stream %d: No buffers outstanding to return", __FUNCTION__,
+ mId);
+ return INVALID_OPERATION;
+ }
+ if (buffer.status == CAMERA3_BUFFER_STATUS_ERROR) {
+ res = mConsumer->cancelBuffer(mConsumer.get(),
+ container_of(buffer.buffer, ANativeWindowBuffer, handle),
+ buffer.release_fence);
+ if (res != OK) {
+ ALOGE("%s: Stream %d: Error cancelling buffer to native window:"
+ " %s (%d)", __FUNCTION__, mId, strerror(-res), res);
+ return res;
+ }
+ } else {
+ res = native_window_set_buffers_timestamp(mConsumer.get(), timestamp);
+ if (res != OK) {
+ ALOGE("%s: Stream %d: Error setting timestamp: %s (%d)",
+ __FUNCTION__, mId, strerror(-res), res);
+ return res;
+ }
+
+ sp<Fence> releaseFence = new Fence(buffer.release_fence);
+ int anwReleaseFence = releaseFence->dup();
+
+ res = mConsumer->queueBuffer(mConsumer.get(),
+ container_of(buffer.buffer, ANativeWindowBuffer, handle),
+ anwReleaseFence);
+ if (res != OK) {
+ ALOGE("%s: Stream %d: Error queueing buffer to native window: %s (%d)",
+ __FUNCTION__, mId, strerror(-res), res);
+ close(anwReleaseFence);
+ return res;
+ }
+
+ mCombinedFence = Fence::merge(mName, mCombinedFence, releaseFence);
+ }
+
+ mDequeuedBufferCount--;
+ mBufferReturnedSignal.signal();
+ mLastTimestamp = timestamp;
+
+ return OK;
}
bool Camera3ZslStream::hasOutstandingBuffersLocked() const {
- ALOGE("%s: Not implemented", __FUNCTION__);
+ // same as output stream
+ nsecs_t signalTime = mCombinedFence->getSignalTime();
+ ALOGV("%s: Stream %d: Has %d outstanding buffers,"
+ " buffer signal time is %lld",
+ __FUNCTION__, mId, mDequeuedBufferCount, signalTime);
+ if (mDequeuedBufferCount > 0 || signalTime == INT64_MAX) {
+ return true;
+ }
return false;
}
status_t Camera3ZslStream::waitUntilIdle(nsecs_t timeout) {
- (void) timeout;
- ALOGE("%s: Not implemented", __FUNCTION__);
- return INVALID_OPERATION;
+ // same as output stream
+ status_t res;
+ {
+ Mutex::Autolock l(mLock);
+ while (mDequeuedBufferCount > 0) {
+ if (timeout != TIMEOUT_NEVER) {
+ nsecs_t startTime = systemTime();
+ res = mBufferReturnedSignal.waitRelative(mLock, timeout);
+ if (res == TIMED_OUT) {
+ return res;
+ } else if (res != OK) {
+ ALOGE("%s: Error waiting for outstanding buffers: %s (%d)",
+ __FUNCTION__, strerror(-res), res);
+ return res;
+ }
+ nsecs_t deltaTime = systemTime() - startTime;
+ if (timeout <= deltaTime) {
+ timeout = 0;
+ } else {
+ timeout -= deltaTime;
+ }
+ } else {
+ res = mBufferReturnedSignal.wait(mLock);
+ if (res != OK) {
+ ALOGE("%s: Error waiting for outstanding buffers: %s (%d)",
+ __FUNCTION__, strerror(-res), res);
+ return res;
+ }
+ }
+ }
+ }
+
+ // No lock
+
+ unsigned int timeoutMs;
+ if (timeout == TIMEOUT_NEVER) {
+ timeoutMs = Fence::TIMEOUT_NEVER;
+ } else if (timeout == 0) {
+ timeoutMs = 0;
+ } else {
+ // Round up to wait at least 1 ms
+ timeoutMs = (timeout + 999999) / 1000000;
+ }
+
+ return mCombinedFence->wait(timeoutMs);
+}
+
+status_t Camera3ZslStream::configureQueueLocked() {
+ status_t res;
+
+ switch (mState) {
+ case STATE_IN_RECONFIG:
+ res = disconnectLocked();
+ if (res != OK) {
+ return res;
+ }
+ break;
+ case STATE_IN_CONFIG:
+ // OK
+ break;
+ default:
+ ALOGE("%s: Bad state: %d", __FUNCTION__, mState);
+ return INVALID_OPERATION;
+ }
+
+ // Configure consumer-side ANativeWindow interface
+ res = native_window_api_connect(mConsumer.get(),
+ NATIVE_WINDOW_API_CAMERA);
+ if (res != OK) {
+ ALOGE("%s: Unable to connect to native window for stream %d",
+ __FUNCTION__, mId);
+ return res;
+ }
+
+ res = native_window_set_usage(mConsumer.get(), camera3_stream::usage);
+ if (res != OK) {
+ ALOGE("%s: Unable to configure usage %08x for stream %d",
+ __FUNCTION__, camera3_stream::usage, mId);
+ return res;
+ }
+
+ res = native_window_set_scaling_mode(mConsumer.get(),
+ NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW);
+ if (res != OK) {
+ ALOGE("%s: Unable to configure stream scaling: %s (%d)",
+ __FUNCTION__, strerror(-res), res);
+ return res;
+ }
+
+ if (mMaxSize == 0) {
+ // For buffers of known size
+ res = native_window_set_buffers_geometry(mConsumer.get(),
+ camera3_stream::width, camera3_stream::height,
+ camera3_stream::format);
+ } else {
+ // For buffers with bounded size
+ res = native_window_set_buffers_geometry(mConsumer.get(),
+ mMaxSize, 1,
+ camera3_stream::format);
+ }
+ if (res != OK) {
+ ALOGE("%s: Unable to configure stream buffer geometry"
+ " %d x %d, format %x for stream %d",
+ __FUNCTION__, camera3_stream::width, camera3_stream::height,
+ camera3_stream::format, mId);
+ return res;
+ }
+
+ int maxConsumerBuffers;
+ res = mConsumer->query(mConsumer.get(),
+ NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS, &maxConsumerBuffers);
+ if (res != OK) {
+ ALOGE("%s: Unable to query consumer undequeued"
+ " buffer count for stream %d", __FUNCTION__, mId);
+ return res;
+ }
+
+ ALOGV("%s: Consumer wants %d buffers", __FUNCTION__,
+ maxConsumerBuffers);
+
+ mTotalBufferCount = maxConsumerBuffers + camera3_stream::max_buffers;
+ mDequeuedBufferCount = 0;
+ mFrameCount = 0;
+ mLastTimestamp = 0;
+
+ res = native_window_set_buffer_count(mConsumer.get(),
+ mTotalBufferCount);
+ if (res != OK) {
+ ALOGE("%s: Unable to set buffer count for stream %d",
+ __FUNCTION__, mId);
+ return res;
+ }
+
+ return OK;
+}
+
+size_t Camera3ZslStream::getBufferCountLocked() {
+ return mTotalBufferCount;
}
status_t Camera3ZslStream::disconnectLocked() {
- ALOGE("%s: Not implemented", __FUNCTION__);
- return INVALID_OPERATION;
+ status_t res;
+
+ switch (mState) {
+ case STATE_IN_RECONFIG:
+ case STATE_CONFIGURED:
+ // OK
+ break;
+ default:
+ // No connection, nothing to do
+ return OK;
+ }
+
+ if (mDequeuedBufferCount > 0) {
+ ALOGE("%s: Can't disconnect with %d buffers still dequeued!",
+ __FUNCTION__, mDequeuedBufferCount);
+ return INVALID_OPERATION;
+ }
+
+ res = native_window_api_disconnect(mConsumer.get(), NATIVE_WINDOW_API_CAMERA);
+
+ /**
+ * This is not an error. if client calling process dies, the window will
+ * also die and all calls to it will return DEAD_OBJECT, thus it's already
+ * "disconnected"
+ */
+ if (res == DEAD_OBJECT) {
+ ALOGW("%s: While disconnecting stream %d from native window, the"
+ " native window died from under us", __FUNCTION__, mId);
+ }
+ else if (res != OK) {
+ ALOGE("%s: Unable to disconnect stream %d from native window (error %d %s)",
+ __FUNCTION__, mId, res, strerror(-res));
+ mState = STATE_ERROR;
+ return res;
+ }
+
+ mState = (mState == STATE_IN_RECONFIG) ? STATE_IN_CONFIG : STATE_CONSTRUCTED;
+ return OK;
}
-status_t Camera3ZslStream::getInputBuffer(camera3_stream_buffer *buffer,
- nsecs_t timestamp) {
- (void) buffer;
- (void) timestamp;
- ALOGE("%s: Not implemented", __FUNCTION__);
- return INVALID_OPERATION;
+status_t Camera3ZslStream::getInputBufferLocked(camera3_stream_buffer *buffer) {
+ ATRACE_CALL();
+
+ // TODO: potentially register from inputBufferLocked
+ // this should be ok, registerBuffersLocked only calls getBuffer for now
+ // register in output mode instead of input mode for ZSL streams.
+ if (mState == STATE_IN_CONFIG || mState == STATE_IN_RECONFIG) {
+ ALOGE("%s: Stream %d: Buffer registration for input streams"
+ " not implemented (state %d)",
+ __FUNCTION__, mId, mState);
+ return INVALID_OPERATION;
+ }
+
+ // Allow dequeue during IN_[RE]CONFIG for registration
+ if (mState != STATE_CONFIGURED &&
+ mState != STATE_IN_CONFIG && mState != STATE_IN_RECONFIG) {
+ ALOGE("%s: Stream %d: Can't get buffers in unconfigured state %d",
+ __FUNCTION__, mId, mState);
+ return INVALID_OPERATION;
+ }
+
+ // Only limit dequeue amount when fully configured
+ if (mState == STATE_CONFIGURED &&
+ mDequeuedBufferCount == camera3_stream::max_buffers) {
+ ALOGE("%s: Stream %d: Already dequeued maximum number of simultaneous"
+ " buffers (%d)", __FUNCTION__, mId,
+ camera3_stream::max_buffers);
+ return INVALID_OPERATION;
+ }
+
+ ANativeWindowBuffer* anb;
+ int fenceFd;
+
+ assert(mProducer != 0);
+
+ sp<PinnedBufferItem> bufferItem;
+ {
+ List<sp<RingBufferConsumer::PinnedBufferItem> >::iterator it, end;
+ it = mInputBufferQueue.begin();
+ end = mInputBufferQueue.end();
+
+ // Need to call enqueueInputBufferByTimestamp as a prerequisite
+ if (it == end) {
+ ALOGE("%s: Stream %d: No input buffer was queued",
+ __FUNCTION__, mId);
+ return INVALID_OPERATION;
+ }
+ bufferItem = *it;
+ mInputBufferQueue.erase(it);
+ }
+
+ anb = bufferItem->getBufferItem().mGraphicBuffer->getNativeBuffer();
+ assert(anb != NULL);
+ fenceFd = bufferItem->getBufferItem().mFence->dup();
+
+ /**
+ * FenceFD now owned by HAL except in case of error,
+ * in which case we reassign it to acquire_fence
+ */
+
+ // Handing out a raw pointer to this object. Increment internal refcount.
+ incStrong(this);
+ buffer->stream = this;
+ buffer->buffer = &(anb->handle);
+ buffer->acquire_fence = fenceFd;
+ buffer->release_fence = -1;
+ buffer->status = CAMERA3_BUFFER_STATUS_OK;
+
+ mDequeuedBufferCount++;
+
+ mBuffersInFlight.push_back(bufferItem);
+
+ return OK;
}
-status_t Camera3ZslStream::returnInputBuffer(const camera3_stream_buffer &buffer) {
- (void) buffer;
- ALOGE("%s: Not implemented", __FUNCTION__);
- return INVALID_OPERATION;
+status_t Camera3ZslStream::returnInputBufferLocked(
+ const camera3_stream_buffer &buffer) {
+ ATRACE_CALL();
+
+ // returnBuffer may be called from a raw pointer, not a sp<>, and we'll be
+ // decrementing the internal refcount next. In case this is the last ref, we
+ // might get destructed on the decStrong(), so keep an sp around until the
+ // end of the call - otherwise have to sprinkle the decStrong on all exit
+ // points.
+ sp<Camera3ZslStream> keepAlive(this);
+ decStrong(this);
+
+ // Allow buffers to be returned in the error state, to allow for disconnect
+ // and in the in-config states for registration
+ if (mState == STATE_CONSTRUCTED) {
+ ALOGE("%s: Stream %d: Can't return buffers in unconfigured state %d",
+ __FUNCTION__, mId, mState);
+ return INVALID_OPERATION;
+ }
+ if (mDequeuedBufferCount == 0) {
+ ALOGE("%s: Stream %d: No buffers outstanding to return", __FUNCTION__,
+ mId);
+ return INVALID_OPERATION;
+ }
+
+ bool bufferFound = false;
+ sp<PinnedBufferItem> bufferItem;
+ {
+ // Find the buffer we are returning
+ Vector<sp<PinnedBufferItem> >::iterator it, end;
+ for (it = mBuffersInFlight.begin(), end = mBuffersInFlight.end();
+ it != end;
+ ++it) {
+
+ const sp<PinnedBufferItem>& tmp = *it;
+ ANativeWindowBuffer *anb =
+ tmp->getBufferItem().mGraphicBuffer->getNativeBuffer();
+ if (anb != NULL && &(anb->handle) == buffer.buffer) {
+ bufferFound = true;
+ bufferItem = tmp;
+ mBuffersInFlight.erase(it);
+ mDequeuedBufferCount--;
+ }
+ }
+ }
+ if (!bufferFound) {
+ ALOGE("%s: Stream %d: Can't return buffer that wasn't sent to HAL",
+ __FUNCTION__, mId);
+ return INVALID_OPERATION;
+ }
+
+ int releaseFenceFd = buffer.release_fence;
+
+ if (buffer.status == CAMERA3_BUFFER_STATUS_ERROR) {
+ if (buffer.release_fence != -1) {
+ ALOGE("%s: Stream %d: HAL should not set release_fence(%d) when "
+ "there is an error", __FUNCTION__, mId, buffer.release_fence);
+ close(buffer.release_fence);
+ }
+
+ /**
+ * Reassign release fence as the acquire fence incase of error
+ */
+ releaseFenceFd = buffer.acquire_fence;
+ }
+
+ /**
+ * Unconditionally return buffer to the buffer queue.
+ * - Fwk takes over the release_fence ownership
+ */
+ sp<Fence> releaseFence = new Fence(releaseFenceFd);
+ bufferItem->getBufferItem().mFence = releaseFence;
+ bufferItem.clear(); // dropping last reference unpins buffer
+
+ mCombinedFence = Fence::merge(mName, mCombinedFence, releaseFence);
+
+ mBufferReturnedSignal.signal();
+
+ return OK;
+
}
void Camera3ZslStream::dump(int fd, const Vector<String16> &args) const {
- (void) fd;
(void) args;
- ALOGE("%s: Not implemented", __FUNCTION__);
+
+ String8 lines;
+ lines.appendFormat(" Stream[%d]: ZSL\n", mId);
+ lines.appendFormat(" State: %d\n", mState);
+ lines.appendFormat(" Dims: %d x %d, format 0x%x\n",
+ camera3_stream::width, camera3_stream::height,
+ camera3_stream::format);
+ lines.appendFormat(" Usage: %d, max HAL buffers: %d\n",
+ camera3_stream::usage, camera3_stream::max_buffers);
+ lines.appendFormat(" Frames produced: %d, last timestamp: %lld ns\n",
+ mFrameCount, mLastTimestamp);
+ lines.appendFormat(" Total buffers: %d, currently dequeued: %d\n",
+ mTotalBufferCount, mDequeuedBufferCount);
+ lines.appendFormat(" Input buffers pending: %d, in flight %d\n",
+ mInputBufferQueue.size(), mBuffersInFlight.size());
+ write(fd, lines.string(), lines.size());
+}
+
+status_t Camera3ZslStream::enqueueInputBufferByTimestamp(
+ nsecs_t timestamp,
+ nsecs_t* actualTimestamp) {
+
+ Mutex::Autolock l(mLock);
+
+ TimestampFinder timestampFinder = TimestampFinder(timestamp);
+
+ sp<RingBufferConsumer::PinnedBufferItem> pinnedBuffer =
+ mProducer->pinSelectedBuffer(timestampFinder,
+ /*waitForFence*/false);
+
+ if (pinnedBuffer == 0) {
+ ALOGE("%s: No ZSL buffers were available yet", __FUNCTION__);
+ return NO_BUFFER_AVAILABLE;
+ }
+
+ nsecs_t actual = pinnedBuffer->getBufferItem().mTimestamp;
+
+ if (actual != timestamp) {
+ ALOGW("%s: ZSL buffer candidate search didn't find an exact match --"
+ " requested timestamp = %lld, actual timestamp = %lld",
+ __FUNCTION__, timestamp, actual);
+ }
+
+ mInputBufferQueue.push_back(pinnedBuffer);
+
+ if (actualTimestamp != NULL) {
+ *actualTimestamp = actual;
+ }
+
+ return OK;
+}
+
+status_t Camera3ZslStream::clearInputRingBuffer() {
+ Mutex::Autolock l(mLock);
+
+ mInputBufferQueue.clear();
+
+ return mProducer->clear();
+}
+
+status_t Camera3ZslStream::setTransform(int /*transform*/) {
+ ALOGV("%s: Not implemented", __FUNCTION__);
+ return INVALID_OPERATION;
}
}; // namespace camera3