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-rw-r--r--camera/camera2/ICameraDeviceUser.cpp24
-rw-r--r--include/camera/camera2/ICameraDeviceUser.h6
-rw-r--r--include/media/stagefright/MediaSync.h17
-rw-r--r--include/media/stagefright/VideoFrameScheduler.h (renamed from media/libmediaplayerservice/VideoFrameScheduler.h)6
-rw-r--r--media/libmedia/AudioTrackShared.cpp14
-rw-r--r--media/libmediaplayerservice/Android.mk1
-rw-r--r--media/libmediaplayerservice/nuplayer/NuPlayerRenderer.cpp3
-rw-r--r--media/libmediaplayerservice/nuplayer/RTSPSource.cpp54
-rw-r--r--media/libmediaplayerservice/nuplayer/RTSPSource.h3
-rw-r--r--media/libstagefright/Android.mk1
-rw-r--r--media/libstagefright/MediaSync.cpp158
-rw-r--r--media/libstagefright/VideoFrameScheduler.cpp (renamed from media/libmediaplayerservice/VideoFrameScheduler.cpp)20
-rw-r--r--media/libstagefright/codecs/hevcdec/SoftHEVC.cpp12
-rw-r--r--media/libstagefright/codecs/hevcdec/SoftHEVC.h2
-rw-r--r--media/libstagefright/rtsp/MyHandler.h28
-rwxr-xr-xservices/audiopolicy/engineconfigurable/parameter-framework/plugin/Android.mk7
-rw-r--r--services/camera/libcameraservice/api1/Camera2Client.cpp8
-rw-r--r--services/camera/libcameraservice/api1/client2/Parameters.cpp3
-rw-r--r--services/camera/libcameraservice/api2/CameraDeviceClient.cpp32
-rw-r--r--services/camera/libcameraservice/api2/CameraDeviceClient.h3
-rw-r--r--services/camera/libcameraservice/common/CameraDeviceBase.h5
-rw-r--r--services/camera/libcameraservice/device2/Camera2Device.cpp6
-rw-r--r--services/camera/libcameraservice/device2/Camera2Device.h3
-rw-r--r--services/camera/libcameraservice/device3/Camera3Device.cpp31
-rw-r--r--services/camera/libcameraservice/device3/Camera3Device.h2
-rw-r--r--services/camera/libcameraservice/device3/Camera3Stream.cpp55
-rw-r--r--services/camera/libcameraservice/device3/Camera3Stream.h14
-rw-r--r--services/camera/libcameraservice/device3/Camera3StreamInterface.h14
28 files changed, 470 insertions, 62 deletions
diff --git a/camera/camera2/ICameraDeviceUser.cpp b/camera/camera2/ICameraDeviceUser.cpp
index ffe974b..d2dc200 100644
--- a/camera/camera2/ICameraDeviceUser.cpp
+++ b/camera/camera2/ICameraDeviceUser.cpp
@@ -48,7 +48,8 @@ enum {
GET_CAMERA_INFO,
WAIT_UNTIL_IDLE,
FLUSH,
- PREPARE
+ PREPARE,
+ TEAR_DOWN
};
namespace {
@@ -365,6 +366,20 @@ public:
return reply.readInt32();
}
+ virtual status_t tearDown(int streamId)
+ {
+ ALOGV("tearDown");
+ Parcel data, reply;
+
+ data.writeInterfaceToken(ICameraDeviceUser::getInterfaceDescriptor());
+ data.writeInt32(streamId);
+
+ remote()->transact(TEAR_DOWN, data, &reply);
+
+ reply.readExceptionCode();
+ return reply.readInt32();
+ }
+
private:
@@ -570,6 +585,13 @@ status_t BnCameraDeviceUser::onTransact(
reply->writeInt32(prepare(streamId));
return NO_ERROR;
} break;
+ case TEAR_DOWN: {
+ CHECK_INTERFACE(ICameraDeviceUser, data, reply);
+ int streamId = data.readInt32();
+ reply->writeNoException();
+ reply->writeInt32(tearDown(streamId));
+ return NO_ERROR;
+ } break;
default:
return BBinder::onTransact(code, data, reply, flags);
diff --git a/include/camera/camera2/ICameraDeviceUser.h b/include/camera/camera2/ICameraDeviceUser.h
index b3dd140..a7bf8ab 100644
--- a/include/camera/camera2/ICameraDeviceUser.h
+++ b/include/camera/camera2/ICameraDeviceUser.h
@@ -138,6 +138,12 @@ public:
* Preallocate buffers for a given output stream asynchronously.
*/
virtual status_t prepare(int streamId) = 0;
+
+ /**
+ * Free all unused buffers for a given output stream.
+ */
+ virtual status_t tearDown(int streamId) = 0;
+
};
// ----------------------------------------------------------------------------
diff --git a/include/media/stagefright/MediaSync.h b/include/media/stagefright/MediaSync.h
index 1eef211..4b5cd05 100644
--- a/include/media/stagefright/MediaSync.h
+++ b/include/media/stagefright/MediaSync.h
@@ -37,6 +37,7 @@ class GraphicBuffer;
class IGraphicBufferConsumer;
class IGraphicBufferProducer;
struct MediaClock;
+struct VideoFrameScheduler;
// MediaSync manages media playback and its synchronization to a media clock
// source. It can be also used for video-only playback.
@@ -103,6 +104,9 @@ public:
// MediaClock::getMediaTime() and MediaClock::getRealTimeFor().
sp<const MediaClock> getMediaClock();
+ // Flush mediasync
+ void flush();
+
// Set the video frame rate hint - this is used by the video FrameScheduler
status_t setVideoFrameRateHint(float rate);
@@ -131,11 +135,10 @@ protected:
private:
enum {
- kWhatDrainVideo = 'dVid',
+ kWhatDrainVideo = 'dVid',
+ kWhatCheckFrameAvailable = 'cFrA',
};
- static const int MAX_OUTSTANDING_BUFFERS = 2;
-
// This is a thin wrapper class that lets us listen to
// IConsumerListener::onFrameAvailable from mInput.
class InputListener : public BnConsumerListener,
@@ -194,6 +197,8 @@ private:
sp<IGraphicBufferConsumer> mInput;
sp<IGraphicBufferProducer> mOutput;
int mUsageFlagsFromOutput;
+ uint32_t mMaxAcquiredBufferCount; // max acquired buffer count
+ bool mReturnPendingInputFrame; // set while we are pending before acquiring an input frame
sp<AudioTrack> mAudioTrack;
uint32_t mNativeSampleRateInHz;
@@ -202,6 +207,7 @@ private:
int64_t mNextBufferItemMediaUs;
List<BufferItem> mBufferItems;
+ sp<VideoFrameScheduler> mFrameScheduler;
// Keep track of buffers received from |mInput|. This is needed because
// it's possible the consumer of |mOutput| could return a different
@@ -242,8 +248,9 @@ private:
// onBufferReleasedByOutput releases a buffer back to the input.
void onFrameAvailableFromInput();
- // Send |bufferItem| to the output for rendering.
- void renderOneBufferItem_l(const BufferItem &bufferItem);
+ // Send |bufferItem| to the output for rendering. If this is not the only
+ // buffer sent for rendering, check for any dropped frames in |checkInUs| us.
+ void renderOneBufferItem_l(const BufferItem &bufferItem, int64_t checkInUs);
// This implements the onBufferReleased callback from IProducerListener.
// It gets called from an OutputListener.
diff --git a/media/libmediaplayerservice/VideoFrameScheduler.h b/include/media/stagefright/VideoFrameScheduler.h
index b1765c9..9d97dfd 100644
--- a/media/libmediaplayerservice/VideoFrameScheduler.h
+++ b/include/media/stagefright/VideoFrameScheduler.h
@@ -39,6 +39,9 @@ struct VideoFrameScheduler : public RefBase {
// returns the vsync period for the main display
nsecs_t getVsyncPeriod();
+ // returns the current frames-per-second, or 0.f if not primed
+ float getFrameRate();
+
void release();
static const size_t kHistorySize = 8;
@@ -54,8 +57,9 @@ private:
void reset(float fps = -1);
// keep current estimate, but restart phase
void restart();
- // returns period
+ // returns period or 0 if not yet primed
nsecs_t addSample(nsecs_t time);
+ nsecs_t getPeriod() const;
private:
nsecs_t mPeriod;
diff --git a/media/libmedia/AudioTrackShared.cpp b/media/libmedia/AudioTrackShared.cpp
index 1d7aed2..6a51a76 100644
--- a/media/libmedia/AudioTrackShared.cpp
+++ b/media/libmedia/AudioTrackShared.cpp
@@ -374,6 +374,9 @@ void AudioTrackClientProxy::flush()
size_t increment = mFrameCountP2 << 1;
size_t mask = increment - 1;
audio_track_cblk_t* cblk = mCblk;
+ // mFlush is 32 bits concatenated as [ flush_counter ] [ newfront_offset ]
+ // Should newFlush = cblk->u.mStreaming.mRear? Only problem is
+ // if you want to flush twice to the same rear location after a 32 bit wrap.
int32_t newFlush = (cblk->u.mStreaming.mRear & mask) |
((cblk->u.mStreaming.mFlush & ~mask) + increment);
android_atomic_release_store(newFlush, &cblk->u.mStreaming.mFlush);
@@ -613,9 +616,18 @@ status_t ServerProxy::obtainBuffer(Buffer* buffer, bool ackFlush)
front = cblk->u.mStreaming.mFront;
if (flush != mFlush) {
// effectively obtain then release whatever is in the buffer
- size_t mask = (mFrameCountP2 << 1) - 1;
+ const size_t overflowBit = mFrameCountP2 << 1;
+ const size_t mask = overflowBit - 1;
int32_t newFront = (front & ~mask) | (flush & mask);
ssize_t filled = rear - newFront;
+ if (filled >= (ssize_t)overflowBit) {
+ // front and rear offsets span the overflow bit of the p2 mask
+ // so rebasing newFront on the front offset is off by the overflow bit.
+ // adjust newFront to match rear offset.
+ ALOGV("flush wrap: filled %zx >= overflowBit %zx", filled, overflowBit);
+ newFront += overflowBit;
+ filled -= overflowBit;
+ }
// Rather than shutting down on a corrupt flush, just treat it as a full flush
if (!(0 <= filled && (size_t) filled <= mFrameCount)) {
ALOGE("mFlush %#x -> %#x, front %#x, rear %#x, mask %#x, newFront %#x, "
diff --git a/media/libmediaplayerservice/Android.mk b/media/libmediaplayerservice/Android.mk
index 7f0cca2..4d1b587 100644
--- a/media/libmediaplayerservice/Android.mk
+++ b/media/libmediaplayerservice/Android.mk
@@ -21,7 +21,6 @@ LOCAL_SRC_FILES:= \
StagefrightPlayer.cpp \
StagefrightRecorder.cpp \
TestPlayerStub.cpp \
- VideoFrameScheduler.cpp \
LOCAL_SHARED_LIBRARIES := \
libbinder \
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.cpp b/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.cpp
index 13a7d94..767417b 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.cpp
@@ -29,8 +29,7 @@
#include <media/stagefright/MediaErrors.h>
#include <media/stagefright/MetaData.h>
#include <media/stagefright/Utils.h>
-
-#include <VideoFrameScheduler.h>
+#include <media/stagefright/VideoFrameScheduler.h>
#include <inttypes.h>
diff --git a/media/libmediaplayerservice/nuplayer/RTSPSource.cpp b/media/libmediaplayerservice/nuplayer/RTSPSource.cpp
index 5210fc8..58ff113 100644
--- a/media/libmediaplayerservice/nuplayer/RTSPSource.cpp
+++ b/media/libmediaplayerservice/nuplayer/RTSPSource.cpp
@@ -138,7 +138,9 @@ void NuPlayer::RTSPSource::pause() {
}
void NuPlayer::RTSPSource::resume() {
- mHandler->resume();
+ if (mHandler != NULL) {
+ mHandler->resume();
+ }
}
status_t NuPlayer::RTSPSource::feedMoreTSData() {
@@ -295,13 +297,19 @@ status_t NuPlayer::RTSPSource::seekTo(int64_t seekTimeUs) {
sp<AMessage> msg = new AMessage(kWhatPerformSeek, this);
msg->setInt32("generation", ++mSeekGeneration);
msg->setInt64("timeUs", seekTimeUs);
- msg->post(200000ll);
- return OK;
+ sp<AMessage> response;
+ status_t err = msg->postAndAwaitResponse(&response);
+ if (err == OK && response != NULL) {
+ CHECK(response->findInt32("err", &err));
+ }
+
+ return err;
}
void NuPlayer::RTSPSource::performSeek(int64_t seekTimeUs) {
if (mState != CONNECTED) {
+ finishSeek(INVALID_OPERATION);
return;
}
@@ -320,9 +328,11 @@ void NuPlayer::RTSPSource::onMessageReceived(const sp<AMessage> &msg) {
} else if (msg->what() == kWhatPerformSeek) {
int32_t generation;
CHECK(msg->findInt32("generation", &generation));
+ CHECK(msg->senderAwaitsResponse(&mSeekReplyID));
if (generation != mSeekGeneration) {
// obsolete.
+ finishSeek(OK);
return;
}
@@ -368,6 +378,37 @@ void NuPlayer::RTSPSource::onMessageReceived(const sp<AMessage> &msg) {
case MyHandler::kWhatSeekDone:
{
mState = CONNECTED;
+ if (mSeekReplyID != NULL) {
+ // Unblock seekTo here in case we attempted to seek in a live stream
+ finishSeek(OK);
+ }
+ break;
+ }
+
+ case MyHandler::kWhatSeekPaused:
+ {
+ sp<AnotherPacketSource> source = getSource(true /* audio */);
+ if (source != NULL) {
+ source->queueDiscontinuity(ATSParser::DISCONTINUITY_NONE,
+ /* extra */ NULL,
+ /* discard */ true);
+ }
+ source = getSource(false /* video */);
+ if (source != NULL) {
+ source->queueDiscontinuity(ATSParser::DISCONTINUITY_NONE,
+ /* extra */ NULL,
+ /* discard */ true);
+ };
+
+ status_t err = OK;
+ msg->findInt32("err", &err);
+ finishSeek(err);
+
+ if (err == OK) {
+ int64_t timeUs;
+ CHECK(msg->findInt64("time", &timeUs));
+ mHandler->continueSeekAfterPause(timeUs);
+ }
break;
}
@@ -700,5 +741,12 @@ bool NuPlayer::RTSPSource::stopBufferingIfNecessary() {
return true;
}
+void NuPlayer::RTSPSource::finishSeek(status_t err) {
+ CHECK(mSeekReplyID != NULL);
+ sp<AMessage> seekReply = new AMessage;
+ seekReply->setInt32("err", err);
+ seekReply->postReply(mSeekReplyID);
+ mSeekReplyID = NULL;
+}
} // namespace android
diff --git a/media/libmediaplayerservice/nuplayer/RTSPSource.h b/media/libmediaplayerservice/nuplayer/RTSPSource.h
index 5f2cf33..6438a1e 100644
--- a/media/libmediaplayerservice/nuplayer/RTSPSource.h
+++ b/media/libmediaplayerservice/nuplayer/RTSPSource.h
@@ -116,6 +116,8 @@ private:
int64_t mEOSTimeoutAudio;
int64_t mEOSTimeoutVideo;
+ sp<AReplyToken> mSeekReplyID;
+
sp<AnotherPacketSource> getSource(bool audio);
void onConnected();
@@ -131,6 +133,7 @@ private:
void setError(status_t err);
void startBufferingIfNecessary();
bool stopBufferingIfNecessary();
+ void finishSeek(status_t err);
DISALLOW_EVIL_CONSTRUCTORS(RTSPSource);
};
diff --git a/media/libstagefright/Android.mk b/media/libstagefright/Android.mk
index 69128bd..b86c749 100644
--- a/media/libstagefright/Android.mk
+++ b/media/libstagefright/Android.mk
@@ -64,6 +64,7 @@ LOCAL_SRC_FILES:= \
TimedEventQueue.cpp \
Utils.cpp \
VBRISeeker.cpp \
+ VideoFrameScheduler.cpp \
WAVExtractor.cpp \
WVMExtractor.cpp \
XINGSeeker.cpp \
diff --git a/media/libstagefright/MediaSync.cpp b/media/libstagefright/MediaSync.cpp
index 52077a7..0df3ec9 100644
--- a/media/libstagefright/MediaSync.cpp
+++ b/media/libstagefright/MediaSync.cpp
@@ -25,6 +25,7 @@
#include <media/AudioTrack.h>
#include <media/stagefright/MediaClock.h>
#include <media/stagefright/MediaSync.h>
+#include <media/stagefright/VideoFrameScheduler.h>
#include <media/stagefright/foundation/ADebug.h>
#include <media/stagefright/foundation/ALooper.h>
#include <media/stagefright/foundation/AMessage.h>
@@ -50,6 +51,8 @@ MediaSync::MediaSync()
mReleaseCondition(),
mNumOutstandingBuffers(0),
mUsageFlagsFromOutput(0),
+ mMaxAcquiredBufferCount(1),
+ mReturnPendingInputFrame(false),
mNativeSampleRateInHz(0),
mNumFramesWritten(0),
mHasAudio(false),
@@ -121,6 +124,11 @@ status_t MediaSync::setSurface(const sp<IGraphicBufferProducer> &output) {
ALOGE("setSurface: failed to connect (%d)", status);
return status;
}
+
+ if (mFrameScheduler == NULL) {
+ mFrameScheduler = new VideoFrameScheduler();
+ mFrameScheduler->init();
+ }
}
if (mOutput != NULL) {
@@ -209,6 +217,12 @@ status_t MediaSync::createInputSurface(
bufferConsumer->setConsumerUsageBits(mUsageFlagsFromOutput);
*outBufferProducer = bufferProducer;
mInput = bufferConsumer;
+
+ // set undequeued buffer count
+ int minUndequeuedBuffers;
+ mOutput->query(NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS, &minUndequeuedBuffers);
+ mMaxAcquiredBufferCount = minUndequeuedBuffers;
+ bufferConsumer->setMaxAcquiredBufferCount(mMaxAcquiredBufferCount);
}
return status;
}
@@ -232,6 +246,7 @@ void MediaSync::updatePlaybackRate_l(float rate) {
mNextBufferItemMediaUs = -1;
}
mPlaybackRate = rate;
+ // TODO: update frame scheduler with this info
mMediaClock->setPlaybackRate(rate);
onDrainVideo_l();
}
@@ -325,13 +340,44 @@ void MediaSync::setName(const AString &name) {
mInput->setConsumerName(String8(name.c_str()));
}
+void MediaSync::flush() {
+ Mutex::Autolock lock(mMutex);
+ if (mFrameScheduler != NULL) {
+ mFrameScheduler->restart();
+ }
+ while (!mBufferItems.empty()) {
+ BufferItem *bufferItem = &*mBufferItems.begin();
+ returnBufferToInput_l(bufferItem->mGraphicBuffer, bufferItem->mFence);
+ mBufferItems.erase(mBufferItems.begin());
+ }
+ mNextBufferItemMediaUs = -1;
+ mNumFramesWritten = 0;
+ mReturnPendingInputFrame = true;
+ mReleaseCondition.signal();
+ mMediaClock->clearAnchor();
+}
+
status_t MediaSync::setVideoFrameRateHint(float rate) {
- // ignored until we add the FrameScheduler
- return rate >= 0.f ? OK : BAD_VALUE;
+ Mutex::Autolock lock(mMutex);
+ if (rate < 0.f) {
+ return BAD_VALUE;
+ }
+ if (mFrameScheduler != NULL) {
+ mFrameScheduler->init(rate);
+ }
+ return OK;
}
float MediaSync::getVideoFrameRate() {
- // we don't know the frame rate
+ Mutex::Autolock lock(mMutex);
+ if (mFrameScheduler != NULL) {
+ float fps = mFrameScheduler->getFrameRate();
+ if (fps > 0.f) {
+ return fps;
+ }
+ }
+
+ // we don't have or know the frame rate
return -1.f;
}
@@ -470,7 +516,7 @@ int64_t MediaSync::getPlayedOutAudioDurationMedia_l(int64_t nowUs) {
CHECK_EQ(res, (status_t)OK);
numFramesPlayedAt = nowUs;
numFramesPlayedAt += 1000LL * mAudioTrack->latency() / 2; /* XXX */
- //ALOGD("getPosition: %d %lld", numFramesPlayed, numFramesPlayedAt);
+ //ALOGD("getPosition: %d %lld", numFramesPlayed, (long long)numFramesPlayedAt);
}
//can't be negative until 12.4 hrs, test.
@@ -510,18 +556,30 @@ void MediaSync::onDrainVideo_l() {
int64_t itemMediaUs = bufferItem->mTimestamp / 1000;
int64_t itemRealUs = getRealTime(itemMediaUs, nowUs);
- if (itemRealUs <= nowUs) {
+ // adjust video frame PTS based on vsync
+ itemRealUs = mFrameScheduler->schedule(itemRealUs * 1000) / 1000;
+ int64_t oneVsyncUs = (mFrameScheduler->getVsyncPeriod() / 1000);
+ int64_t twoVsyncsUs = oneVsyncUs * 2;
+
+ // post 2 display refreshes before rendering is due
+ if (itemRealUs <= nowUs + twoVsyncsUs) {
+ ALOGV("adjusting PTS from %lld to %lld",
+ (long long)bufferItem->mTimestamp / 1000, (long long)itemRealUs);
+ bufferItem->mTimestamp = itemRealUs * 1000;
+ bufferItem->mIsAutoTimestamp = false;
+
if (mHasAudio) {
if (nowUs - itemRealUs <= kMaxAllowedVideoLateTimeUs) {
- renderOneBufferItem_l(*bufferItem);
+ renderOneBufferItem_l(*bufferItem, nowUs + oneVsyncUs - itemRealUs);
} else {
// too late.
returnBufferToInput_l(
bufferItem->mGraphicBuffer, bufferItem->mFence);
+ mFrameScheduler->restart();
}
} else {
// always render video buffer in video-only mode.
- renderOneBufferItem_l(*bufferItem);
+ renderOneBufferItem_l(*bufferItem, nowUs + oneVsyncUs - itemRealUs);
// smooth out videos >= 10fps
mMediaClock->updateAnchor(
@@ -534,7 +592,7 @@ void MediaSync::onDrainVideo_l() {
if (mNextBufferItemMediaUs == -1
|| mNextBufferItemMediaUs > itemMediaUs) {
sp<AMessage> msg = new AMessage(kWhatDrainVideo, this);
- msg->post(itemRealUs - nowUs);
+ msg->post(itemRealUs - nowUs - twoVsyncsUs);
mNextBufferItemMediaUs = itemMediaUs;
}
break;
@@ -545,10 +603,18 @@ void MediaSync::onDrainVideo_l() {
void MediaSync::onFrameAvailableFromInput() {
Mutex::Autolock lock(mMutex);
+ const static nsecs_t kAcquireWaitTimeout = 2000000000; // 2 seconds
+
+ mReturnPendingInputFrame = false;
+
// If there are too many outstanding buffers, wait until a buffer is
// released back to the input in onBufferReleased.
- while (mNumOutstandingBuffers >= MAX_OUTSTANDING_BUFFERS) {
- mReleaseCondition.wait(mMutex);
+ // NOTE: BufferQueue allows dequeuing maxAcquiredBufferCount + 1 buffers
+ while (mNumOutstandingBuffers > mMaxAcquiredBufferCount
+ && !mIsAbandoned && !mReturnPendingInputFrame) {
+ if (mReleaseCondition.waitRelative(mMutex, kAcquireWaitTimeout) != OK) {
+ ALOGI("still waiting to release a buffer before acquire");
+ }
// If the sync is abandoned while we are waiting, the release
// condition variable will be broadcast, and we should just return
@@ -582,12 +648,21 @@ void MediaSync::onFrameAvailableFromInput() {
if (mBuffersFromInput.indexOfKey(bufferItem.mGraphicBuffer->getId()) >= 0) {
// Something is wrong since this buffer should be at our hands, bail.
+ ALOGE("received buffer multiple times from input");
mInput->consumerDisconnect();
onAbandoned_l(true /* isInput */);
return;
}
mBuffersFromInput.add(bufferItem.mGraphicBuffer->getId(), bufferItem.mGraphicBuffer);
+ // If flush happened while waiting for a buffer to be released, simply return it
+ // TRICKY: do it here after it is detached so that we don't have to cache mGraphicBuffer.
+ if (mReturnPendingInputFrame) {
+ mReturnPendingInputFrame = false;
+ returnBufferToInput_l(bufferItem.mGraphicBuffer, bufferItem.mFence);
+ return;
+ }
+
mBufferItems.push_back(bufferItem);
if (mBufferItems.size() == 1) {
@@ -595,7 +670,7 @@ void MediaSync::onFrameAvailableFromInput() {
}
}
-void MediaSync::renderOneBufferItem_l( const BufferItem &bufferItem) {
+void MediaSync::renderOneBufferItem_l(const BufferItem &bufferItem, int64_t checkInUs) {
IGraphicBufferProducer::QueueBufferInput queueInput(
bufferItem.mTimestamp,
bufferItem.mIsAutoTimestamp,
@@ -635,6 +710,12 @@ void MediaSync::renderOneBufferItem_l( const BufferItem &bufferItem) {
mBuffersSentToOutput.add(bufferItem.mGraphicBuffer->getId(), bufferItem.mGraphicBuffer);
ALOGV("queued buffer %#llx to output", (long long)bufferItem.mGraphicBuffer->getId());
+
+ // If we have already queued more than one buffer, check for any free buffers in case
+ // one of them were dropped - as BQ does not signal onBufferReleased in that case.
+ if (mBuffersSentToOutput.size() > 1) {
+ (new AMessage(kWhatCheckFrameAvailable, this))->post(checkInUs);
+ }
}
void MediaSync::onBufferReleasedByOutput(sp<IGraphicBufferProducer> &output) {
@@ -646,32 +727,38 @@ void MediaSync::onBufferReleasedByOutput(sp<IGraphicBufferProducer> &output) {
sp<GraphicBuffer> buffer;
sp<Fence> fence;
- status_t status = mOutput->detachNextBuffer(&buffer, &fence);
- ALOGE_IF(status != NO_ERROR, "detaching buffer from output failed (%d)", status);
+ status_t status;
+ // NOTE: This is a workaround for a BufferQueue bug where onBufferReleased is
+ // called only for released buffers, but not for buffers that were dropped during
+ // acquire. Dropped buffers can still be detached as they are on the free list.
+ // TODO: remove if released callback happens also for dropped buffers
+ while ((status = mOutput->detachNextBuffer(&buffer, &fence)) != NO_MEMORY) {
+ ALOGE_IF(status != NO_ERROR, "detaching buffer from output failed (%d)", status);
- if (status == NO_INIT) {
- // If the output has been abandoned, we can't do anything else,
- // since buffer is invalid.
- onAbandoned_l(false /* isInput */);
- return;
- }
+ if (status == NO_INIT) {
+ // If the output has been abandoned, we can't do anything else,
+ // since buffer is invalid.
+ onAbandoned_l(false /* isInput */);
+ return;
+ }
- ALOGV("detached buffer %#llx from output", (long long)buffer->getId());
+ ALOGV("detached buffer %#llx from output", (long long)buffer->getId());
- // If we've been abandoned, we can't return the buffer to the input, so just
- // move on.
- if (mIsAbandoned) {
- return;
- }
+ // If we've been abandoned, we can't return the buffer to the input, so just
+ // move on.
+ if (mIsAbandoned) {
+ return;
+ }
- ssize_t ix = mBuffersSentToOutput.indexOfKey(buffer->getId());
- if (ix < 0) {
- // The buffer is unknown, maybe leftover, ignore.
- return;
- }
- mBuffersSentToOutput.removeItemsAt(ix);
+ ssize_t ix = mBuffersSentToOutput.indexOfKey(buffer->getId());
+ if (ix < 0) {
+ // The buffer is unknown, maybe leftover, ignore.
+ return;
+ }
+ mBuffersSentToOutput.removeItemsAt(ix);
- returnBufferToInput_l(buffer, fence);
+ returnBufferToInput_l(buffer, fence);
+ }
}
void MediaSync::returnBufferToInput_l(
@@ -679,6 +766,7 @@ void MediaSync::returnBufferToInput_l(
ssize_t ix = mBuffersFromInput.indexOfKey(buffer->getId());
if (ix < 0) {
// The buffer is unknown, something is wrong, bail.
+ ALOGE("output returned unknown buffer");
mOutput->disconnect(NATIVE_WINDOW_API_MEDIA);
onAbandoned_l(false /* isInput */);
return;
@@ -741,6 +829,12 @@ void MediaSync::onMessageReceived(const sp<AMessage> &msg) {
break;
}
+ case kWhatCheckFrameAvailable:
+ {
+ onBufferReleasedByOutput(mOutput);
+ break;
+ }
+
default:
TRESPASS();
break;
diff --git a/media/libmediaplayerservice/VideoFrameScheduler.cpp b/media/libstagefright/VideoFrameScheduler.cpp
index ce5f5fe..5fe9bf9 100644
--- a/media/libmediaplayerservice/VideoFrameScheduler.cpp
+++ b/media/libstagefright/VideoFrameScheduler.cpp
@@ -28,8 +28,7 @@
#include <media/stagefright/foundation/ADebug.h>
#include <media/stagefright/foundation/AUtils.h>
-
-#include "VideoFrameScheduler.h"
+#include <media/stagefright/VideoFrameScheduler.h>
namespace android {
@@ -56,7 +55,7 @@ static const size_t kMinSamplesToEstimatePeriod = 3;
static const size_t kMaxSamplesToEstimatePeriod = VideoFrameScheduler::kHistorySize;
static const size_t kPrecision = 12;
-static const size_t kErrorThreshold = (1 << (kPrecision * 2)) / 10;
+static const int64_t kErrorThreshold = (1 << (kPrecision * 2)) / 10;
static const int64_t kMultiplesThresholdDiv = 4; // 25%
static const int64_t kReFitThresholdDiv = 100; // 1%
static const nsecs_t kMaxAllowedFrameSkip = kNanosIn1s; // 1 sec
@@ -258,7 +257,8 @@ void VideoFrameScheduler::PLL::prime(size_t numSamplesToUse) {
mPhase = firstTime;
}
}
- ALOGV("priming[%zu] phase:%lld period:%lld", numSamplesToUse, mPhase, mPeriod);
+ ALOGV("priming[%zu] phase:%lld period:%lld",
+ numSamplesToUse, (long long)mPhase, (long long)mPeriod);
}
nsecs_t VideoFrameScheduler::PLL::addSample(nsecs_t time) {
@@ -316,6 +316,10 @@ nsecs_t VideoFrameScheduler::PLL::addSample(nsecs_t time) {
return mPeriod;
}
+nsecs_t VideoFrameScheduler::PLL::getPeriod() const {
+ return mPrimed ? mPeriod : 0;
+}
+
/* ======================================================================= */
/* Frame Scheduler */
/* ======================================================================= */
@@ -382,6 +386,14 @@ nsecs_t VideoFrameScheduler::getVsyncPeriod() {
return kDefaultVsyncPeriod;
}
+float VideoFrameScheduler::getFrameRate() {
+ nsecs_t videoPeriod = mPll.getPeriod();
+ if (videoPeriod > 0) {
+ return 1e9 / videoPeriod;
+ }
+ return 0.f;
+}
+
nsecs_t VideoFrameScheduler::schedule(nsecs_t renderTime) {
nsecs_t origRenderTime = renderTime;
diff --git a/media/libstagefright/codecs/hevcdec/SoftHEVC.cpp b/media/libstagefright/codecs/hevcdec/SoftHEVC.cpp
index 5c05a0e..1db350f 100644
--- a/media/libstagefright/codecs/hevcdec/SoftHEVC.cpp
+++ b/media/libstagefright/codecs/hevcdec/SoftHEVC.cpp
@@ -82,7 +82,10 @@ SoftHEVC::SoftHEVC(
initPorts(
kNumBuffers, max(kMaxOutputBufferSize / kMinCompressionRatio, (size_t)INPUT_BUF_SIZE),
kNumBuffers, CODEC_MIME_TYPE, kMinCompressionRatio);
- CHECK_EQ(initDecoder(), (status_t)OK);
+}
+
+status_t SoftHEVC::init() {
+ return initDecoder();
}
SoftHEVC::~SoftHEVC() {
@@ -766,5 +769,10 @@ void SoftHEVC::onQueueFilled(OMX_U32 portIndex) {
android::SoftOMXComponent *createSoftOMXComponent(const char *name,
const OMX_CALLBACKTYPE *callbacks, OMX_PTR appData,
OMX_COMPONENTTYPE **component) {
- return new android::SoftHEVC(name, callbacks, appData, component);
+ android::SoftHEVC *codec = new android::SoftHEVC(name, callbacks, appData, component);
+ if (codec->init() != android::OK) {
+ android::sp<android::SoftOMXComponent> release = codec;
+ return NULL;
+ }
+ return codec;
}
diff --git a/media/libstagefright/codecs/hevcdec/SoftHEVC.h b/media/libstagefright/codecs/hevcdec/SoftHEVC.h
index a91f528..c6344cf 100644
--- a/media/libstagefright/codecs/hevcdec/SoftHEVC.h
+++ b/media/libstagefright/codecs/hevcdec/SoftHEVC.h
@@ -56,6 +56,8 @@ struct SoftHEVC: public SoftVideoDecoderOMXComponent {
SoftHEVC(const char *name, const OMX_CALLBACKTYPE *callbacks,
OMX_PTR appData, OMX_COMPONENTTYPE **component);
+ status_t init();
+
protected:
virtual ~SoftHEVC();
diff --git a/media/libstagefright/rtsp/MyHandler.h b/media/libstagefright/rtsp/MyHandler.h
index e64a7a1..0d0baf3 100644
--- a/media/libstagefright/rtsp/MyHandler.h
+++ b/media/libstagefright/rtsp/MyHandler.h
@@ -98,6 +98,7 @@ struct MyHandler : public AHandler {
enum {
kWhatConnected = 'conn',
kWhatDisconnected = 'disc',
+ kWhatSeekPaused = 'spau',
kWhatSeekDone = 'sdon',
kWhatAccessUnit = 'accU',
@@ -220,6 +221,12 @@ struct MyHandler : public AHandler {
msg->post();
}
+ void continueSeekAfterPause(int64_t timeUs) {
+ sp<AMessage> msg = new AMessage('see1', this);
+ msg->setInt64("time", timeUs);
+ msg->post();
+ }
+
bool isSeekable() const {
return mSeekable;
}
@@ -1180,7 +1187,7 @@ struct MyHandler : public AHandler {
mCheckPending = true;
++mCheckGeneration;
- sp<AMessage> reply = new AMessage('see1', this);
+ sp<AMessage> reply = new AMessage('see0', this);
reply->setInt64("time", timeUs);
if (mPausing) {
@@ -1203,9 +1210,26 @@ struct MyHandler : public AHandler {
break;
}
- case 'see1':
+ case 'see0':
{
// Session is paused now.
+ status_t err = OK;
+ msg->findInt32("result", &err);
+
+ int64_t timeUs;
+ CHECK(msg->findInt64("time", &timeUs));
+
+ sp<AMessage> notify = mNotify->dup();
+ notify->setInt32("what", kWhatSeekPaused);
+ notify->setInt32("err", err);
+ notify->setInt64("time", timeUs);
+ notify->post();
+ break;
+
+ }
+
+ case 'see1':
+ {
for (size_t i = 0; i < mTracks.size(); ++i) {
TrackInfo *info = &mTracks.editItemAt(i);
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/plugin/Android.mk b/services/audiopolicy/engineconfigurable/parameter-framework/plugin/Android.mk
index 46b2725..a523656 100755
--- a/services/audiopolicy/engineconfigurable/parameter-framework/plugin/Android.mk
+++ b/services/audiopolicy/engineconfigurable/parameter-framework/plugin/Android.mk
@@ -26,13 +26,8 @@ LOCAL_C_INCLUDES := \
LOCAL_SHARED_LIBRARIES := \
libaudiopolicyengineconfigurable \
libparameter \
- libicuuc \
- liblog \
-
-LOCAL_STATIC_LIBRARIES := \
libxmlserializer \
- libpfw_utility \
- libxml2 \
+ liblog \
LOCAL_MODULE_TAGS := optional
LOCAL_MODULE := libpolicy-subsystem
diff --git a/services/camera/libcameraservice/api1/Camera2Client.cpp b/services/camera/libcameraservice/api1/Camera2Client.cpp
index 8e88ca7..36e99dd 100644
--- a/services/camera/libcameraservice/api1/Camera2Client.cpp
+++ b/services/camera/libcameraservice/api1/Camera2Client.cpp
@@ -1973,6 +1973,14 @@ status_t Camera2Client::createJpegStreamL(Parameters &params) {
return res;
}
+ // Ideally we don't need this, but current camera device
+ // status tracking mechanism demands it.
+ res = mDevice->waitUntilDrained();
+ if (res != OK) {
+ ALOGE("%s: Camera %d: Waiting device drain failed: %s (%d)",
+ __FUNCTION__, mCameraId, strerror(-res), res);
+ }
+
res = updateProcessorStream(mJpegProcessor, params);
return res;
}
diff --git a/services/camera/libcameraservice/api1/client2/Parameters.cpp b/services/camera/libcameraservice/api1/client2/Parameters.cpp
index 699de2f..442eb75 100644
--- a/services/camera/libcameraservice/api1/client2/Parameters.cpp
+++ b/services/camera/libcameraservice/api1/client2/Parameters.cpp
@@ -2865,7 +2865,8 @@ int64_t Parameters::getJpegStreamMinFrameDurationNs(Parameters::Size size) {
}
}
}
- ALOGE("%s: cannot find jpeg size %dx%d", size.width, size.height);
+ ALOGE("%s: cannot find min frame duration for jpeg size %dx%d",
+ __FUNCTION__, size.width, size.height);
return -1;
}
diff --git a/services/camera/libcameraservice/api2/CameraDeviceClient.cpp b/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
index 3b83f63..c717a56 100644
--- a/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
+++ b/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
@@ -719,6 +719,38 @@ status_t CameraDeviceClient::prepare(int streamId) {
return res;
}
+status_t CameraDeviceClient::tearDown(int streamId) {
+ ATRACE_CALL();
+ ALOGV("%s", __FUNCTION__);
+
+ status_t res = OK;
+ if ( (res = checkPid(__FUNCTION__) ) != OK) return res;
+
+ Mutex::Autolock icl(mBinderSerializationLock);
+
+ // Guard against trying to prepare non-created streams
+ ssize_t index = NAME_NOT_FOUND;
+ for (size_t i = 0; i < mStreamMap.size(); ++i) {
+ if (streamId == mStreamMap.valueAt(i)) {
+ index = i;
+ break;
+ }
+ }
+
+ if (index == NAME_NOT_FOUND) {
+ ALOGW("%s: Camera %d: Invalid stream ID (%d) specified, no stream "
+ "created yet", __FUNCTION__, mCameraId, streamId);
+ return BAD_VALUE;
+ }
+
+ // Also returns BAD_VALUE if stream ID was not valid or if the stream is in
+ // use
+ res = mDevice->tearDown(streamId);
+
+ return res;
+}
+
+
status_t CameraDeviceClient::dump(int fd, const Vector<String16>& args) {
String8 result;
result.appendFormat("CameraDeviceClient[%d] (%p) dump:\n",
diff --git a/services/camera/libcameraservice/api2/CameraDeviceClient.h b/services/camera/libcameraservice/api2/CameraDeviceClient.h
index 0f485ca..1f8b39d 100644
--- a/services/camera/libcameraservice/api2/CameraDeviceClient.h
+++ b/services/camera/libcameraservice/api2/CameraDeviceClient.h
@@ -111,6 +111,9 @@ public:
// Prepare stream by preallocating its buffers
virtual status_t prepare(int streamId);
+ // Tear down stream resources by freeing its unused buffers
+ virtual status_t tearDown(int streamId);
+
/**
* Interface used by CameraService
*/
diff --git a/services/camera/libcameraservice/common/CameraDeviceBase.h b/services/camera/libcameraservice/common/CameraDeviceBase.h
index 06177e3..cd25949 100644
--- a/services/camera/libcameraservice/common/CameraDeviceBase.h
+++ b/services/camera/libcameraservice/common/CameraDeviceBase.h
@@ -289,6 +289,11 @@ class CameraDeviceBase : public virtual RefBase {
virtual status_t prepare(int streamId) = 0;
/**
+ * Free stream resources by dumping its unused gralloc buffers.
+ */
+ virtual status_t tearDown(int streamId) = 0;
+
+ /**
* Get the HAL device version.
*/
virtual uint32_t getDeviceVersion() = 0;
diff --git a/services/camera/libcameraservice/device2/Camera2Device.cpp b/services/camera/libcameraservice/device2/Camera2Device.cpp
index dfe5565..c9c990c 100644
--- a/services/camera/libcameraservice/device2/Camera2Device.cpp
+++ b/services/camera/libcameraservice/device2/Camera2Device.cpp
@@ -626,6 +626,12 @@ status_t Camera2Device::prepare(int streamId) {
return NO_INIT;
}
+status_t Camera2Device::tearDown(int streamId) {
+ ATRACE_CALL();
+ ALOGE("%s: Camera %d: unimplemented", __FUNCTION__, mId);
+ return NO_INIT;
+}
+
uint32_t Camera2Device::getDeviceVersion() {
ATRACE_CALL();
return mDeviceVersion;
diff --git a/services/camera/libcameraservice/device2/Camera2Device.h b/services/camera/libcameraservice/device2/Camera2Device.h
index c9f3a2c..34c1ded 100644
--- a/services/camera/libcameraservice/device2/Camera2Device.h
+++ b/services/camera/libcameraservice/device2/Camera2Device.h
@@ -85,8 +85,9 @@ class Camera2Device: public CameraDeviceBase {
buffer_handle_t *buffer, wp<BufferReleasedListener> listener);
// Flush implemented as just a wait
virtual status_t flush(int64_t *lastFrameNumber = NULL);
- // Prepare is a no-op
+ // Prepare and tearDown are no-ops
virtual status_t prepare(int streamId);
+ virtual status_t tearDown(int streamId);
virtual uint32_t getDeviceVersion();
virtual ssize_t getJpegBufferSize(uint32_t width, uint32_t height) const;
diff --git a/services/camera/libcameraservice/device3/Camera3Device.cpp b/services/camera/libcameraservice/device3/Camera3Device.cpp
index 9e73b5c..3afbd89 100644
--- a/services/camera/libcameraservice/device3/Camera3Device.cpp
+++ b/services/camera/libcameraservice/device3/Camera3Device.cpp
@@ -1384,6 +1384,37 @@ status_t Camera3Device::prepare(int streamId) {
return mPreparerThread->prepare(stream);
}
+status_t Camera3Device::tearDown(int streamId) {
+ ATRACE_CALL();
+ ALOGV("%s: Camera %d: Tearing down stream %d", __FUNCTION__, mId, streamId);
+ Mutex::Autolock il(mInterfaceLock);
+ Mutex::Autolock l(mLock);
+
+ // Teardown can only be accomplished on devices that don't require register_stream_buffers,
+ // since we cannot call register_stream_buffers except right after configure_streams.
+ if (mHal3Device->common.version < CAMERA_DEVICE_API_VERSION_3_2) {
+ ALOGE("%s: Unable to tear down streams on device HAL v%x",
+ __FUNCTION__, mHal3Device->common.version);
+ return NO_INIT;
+ }
+
+ sp<Camera3StreamInterface> stream;
+ ssize_t outputStreamIdx = mOutputStreams.indexOfKey(streamId);
+ if (outputStreamIdx == NAME_NOT_FOUND) {
+ CLOGE("Stream %d does not exist", streamId);
+ return BAD_VALUE;
+ }
+
+ stream = mOutputStreams.editValueAt(outputStreamIdx);
+
+ if (stream->hasOutstandingBuffers() || mRequestThread->isStreamPending(stream)) {
+ CLOGE("Stream %d is a target of a in-progress request", streamId);
+ return BAD_VALUE;
+ }
+
+ return stream->tearDown();
+}
+
uint32_t Camera3Device::getDeviceVersion() {
ATRACE_CALL();
Mutex::Autolock il(mInterfaceLock);
diff --git a/services/camera/libcameraservice/device3/Camera3Device.h b/services/camera/libcameraservice/device3/Camera3Device.h
index 31b6132..140da98 100644
--- a/services/camera/libcameraservice/device3/Camera3Device.h
+++ b/services/camera/libcameraservice/device3/Camera3Device.h
@@ -141,6 +141,8 @@ class Camera3Device :
virtual status_t prepare(int streamId);
+ virtual status_t tearDown(int streamId);
+
virtual uint32_t getDeviceVersion();
virtual ssize_t getJpegBufferSize(uint32_t width, uint32_t height) const;
diff --git a/services/camera/libcameraservice/device3/Camera3Stream.cpp b/services/camera/libcameraservice/device3/Camera3Stream.cpp
index 4c40bb6..2527fd6 100644
--- a/services/camera/libcameraservice/device3/Camera3Stream.cpp
+++ b/services/camera/libcameraservice/device3/Camera3Stream.cpp
@@ -364,6 +364,61 @@ status_t Camera3Stream::cancelPrepareLocked() {
return res;
}
+status_t Camera3Stream::tearDown() {
+ ATRACE_CALL();
+ Mutex::Autolock l(mLock);
+
+ status_t res = OK;
+
+ // This function should be only called when the stream is configured.
+ if (mState != STATE_CONFIGURED) {
+ ALOGE("%s: Stream %d: Can't tear down stream if stream is not in "
+ "CONFIGURED state %d", __FUNCTION__, mId, mState);
+ return INVALID_OPERATION;
+ }
+
+ // If any buffers have been handed to the HAL, the stream cannot be torn down.
+ if (getHandoutOutputBufferCountLocked() > 0) {
+ ALOGE("%s: Stream %d: Can't tear down a stream that has outstanding buffers",
+ __FUNCTION__, mId);
+ return INVALID_OPERATION;
+ }
+
+ // Free buffers by disconnecting and then reconnecting to the buffer queue
+ // Only unused buffers will be dropped immediately; buffers that have been filled
+ // and are waiting to be acquired by the consumer and buffers that are currently
+ // acquired will be freed once they are released by the consumer.
+
+ res = disconnectLocked();
+ if (res != OK) {
+ if (res == -ENOTCONN) {
+ // queue has been disconnected, nothing left to do, so exit with success
+ return OK;
+ }
+ ALOGE("%s: Stream %d: Unable to disconnect to tear down buffers: %s (%d)",
+ __FUNCTION__, mId, strerror(-res), res);
+ return res;
+ }
+
+ mState = STATE_IN_CONFIG;
+
+ res = configureQueueLocked();
+ if (res != OK) {
+ ALOGE("%s: Unable to configure stream %d queue: %s (%d)",
+ __FUNCTION__, mId, strerror(-res), res);
+ mState = STATE_ERROR;
+ return res;
+ }
+
+ // Reset prepared state, since we've reconnected to the queue and can prepare again.
+ mPrepared = false;
+ mStreamUnpreparable = false;
+
+ mState = STATE_CONFIGURED;
+
+ return OK;
+}
+
status_t Camera3Stream::getBuffer(camera3_stream_buffer *buffer) {
ATRACE_CALL();
Mutex::Autolock l(mLock);
diff --git a/services/camera/libcameraservice/device3/Camera3Stream.h b/services/camera/libcameraservice/device3/Camera3Stream.h
index 0543c66..bab2177 100644
--- a/services/camera/libcameraservice/device3/Camera3Stream.h
+++ b/services/camera/libcameraservice/device3/Camera3Stream.h
@@ -247,6 +247,20 @@ class Camera3Stream :
status_t cancelPrepare();
/**
+ * Tear down memory for this stream. This frees all unused gralloc buffers
+ * allocated for this stream, but leaves it ready for operation afterward.
+ *
+ * May only be called in the CONFIGURED state, and keeps the stream in
+ * the CONFIGURED state.
+ *
+ * Returns:
+ * OK if teardown succeeded.
+ * INVALID_OPERATION if not in the CONFIGURED state
+ * NO_INIT in case of a serious error from the HAL device
+ */
+ status_t tearDown();
+
+ /**
* Fill in the camera3_stream_buffer with the next valid buffer for this
* stream, to hand over to the HAL.
*
diff --git a/services/camera/libcameraservice/device3/Camera3StreamInterface.h b/services/camera/libcameraservice/device3/Camera3StreamInterface.h
index 6c87a45..c086eaf 100644
--- a/services/camera/libcameraservice/device3/Camera3StreamInterface.h
+++ b/services/camera/libcameraservice/device3/Camera3StreamInterface.h
@@ -152,6 +152,20 @@ class Camera3StreamInterface : public virtual RefBase {
virtual status_t cancelPrepare() = 0;
/**
+ * Tear down memory for this stream. This frees all unused gralloc buffers
+ * allocated for this stream, but leaves it ready for operation afterward.
+ *
+ * May only be called in the CONFIGURED state, and keeps the stream in
+ * the CONFIGURED state.
+ *
+ * Returns:
+ * OK if teardown succeeded.
+ * INVALID_OPERATION if not in the CONFIGURED state
+ * NO_INIT in case of a serious error from the HAL device
+ */
+ virtual status_t tearDown() = 0;
+
+ /**
* Fill in the camera3_stream_buffer with the next valid buffer for this
* stream, to hand over to the HAL.
*