Merge "LiveSession: Fixed a bug that set invalid metadata key for subtitles."
diff --git a/media/extractors/mpeg2/Android.bp b/media/extractors/mpeg2/Android.bp
index 5e4a592..40314dc 100644
--- a/media/extractors/mpeg2/Android.bp
+++ b/media/extractors/mpeg2/Android.bp
@@ -25,6 +25,10 @@
         "libstagefright_foundation",
     ],
 
+    header_libs: [
+        "libbase_headers",
+    ],
+
     static_libs: [
         "libstagefright_mpeg2support",
         "libutils",
diff --git a/media/extractors/mpeg2/MPEG2TSExtractor.cpp b/media/extractors/mpeg2/MPEG2TSExtractor.cpp
index c83f7ce..9191386 100644
--- a/media/extractors/mpeg2/MPEG2TSExtractor.cpp
+++ b/media/extractors/mpeg2/MPEG2TSExtractor.cpp
@@ -20,6 +20,8 @@
 #include <inttypes.h>
 #include <utils/Log.h>
 
+#include <android-base/macros.h>
+
 #include "MPEG2TSExtractor.h"
 
 #include <media/DataSourceBase.h>
@@ -508,7 +510,7 @@
         case MediaTrack::ReadOptions::SEEK_CLOSEST:
             ALOGW("seekMode not supported: %d; falling back to PREVIOUS_SYNC",
                     seekMode);
-            // fall-through
+            FALLTHROUGH_INTENDED;
         case MediaTrack::ReadOptions::SEEK_PREVIOUS_SYNC:
             if (index == 0) {
                 ALOGW("Previous sync not found; starting from the earliest "
diff --git a/media/libaudioclient/Android.bp b/media/libaudioclient/Android.bp
index 2df37a8..f93d44b 100644
--- a/media/libaudioclient/Android.bp
+++ b/media/libaudioclient/Android.bp
@@ -53,7 +53,10 @@
     export_shared_lib_headers: ["libbinder"],
 
     local_include_dirs: ["include/media", "aidl"],
-    header_libs: ["libaudioclient_headers"],
+    header_libs: [
+        "libaudioclient_headers",
+        "libbase_headers",
+    ],
     export_header_lib_headers: ["libaudioclient_headers"],
 
     // for memory heap analysis
diff --git a/media/libaudioclient/AudioRecord.cpp b/media/libaudioclient/AudioRecord.cpp
index e2de8e7..0aabaf7 100644
--- a/media/libaudioclient/AudioRecord.cpp
+++ b/media/libaudioclient/AudioRecord.cpp
@@ -19,6 +19,7 @@
 #define LOG_TAG "AudioRecord"
 
 #include <inttypes.h>
+#include <android-base/macros.h>
 #include <sys/resource.h>
 
 #include <binder/IPCThreadState.h>
@@ -1446,7 +1447,7 @@
     case NS_WHENEVER:
         // Event driven: call wake() when callback notifications conditions change.
         ns = INT64_MAX;
-        // fall through
+        FALLTHROUGH_INTENDED;
     default:
         LOG_ALWAYS_FATAL_IF(ns < 0, "processAudioBuffer() returned %" PRId64, ns);
         pauseInternal(ns);
diff --git a/media/libaudioclient/AudioTrack.cpp b/media/libaudioclient/AudioTrack.cpp
index 76c9bfb..4881ddc 100644
--- a/media/libaudioclient/AudioTrack.cpp
+++ b/media/libaudioclient/AudioTrack.cpp
@@ -22,6 +22,7 @@
 #include <math.h>
 #include <sys/resource.h>
 
+#include <android-base/macros.h>
 #include <audio_utils/clock.h>
 #include <audio_utils/primitives.h>
 #include <binder/IPCThreadState.h>
@@ -2964,7 +2965,7 @@
         if (mProxy->getStreamEndDone()) {
             return true;
         }
-        // fall through
+        FALLTHROUGH_INTENDED;
     case STATE_ACTIVE:
     case STATE_STOPPING:
         break;
@@ -3083,7 +3084,7 @@
     case NS_WHENEVER:
         // Event driven: call wake() when callback notifications conditions change.
         ns = INT64_MAX;
-        // fall through
+        FALLTHROUGH_INTENDED;
     default:
         LOG_ALWAYS_FATAL_IF(ns < 0, "processAudioBuffer() returned %" PRId64, ns);
         pauseInternal(ns);
diff --git a/media/libaudioclient/AudioTrackShared.cpp b/media/libaudioclient/AudioTrackShared.cpp
index d40f193..01f400d 100644
--- a/media/libaudioclient/AudioTrackShared.cpp
+++ b/media/libaudioclient/AudioTrackShared.cpp
@@ -17,6 +17,7 @@
 #define LOG_TAG "AudioTrackShared"
 //#define LOG_NDEBUG 0
 
+#include <android-base/macros.h>
 #include <private/media/AudioTrackShared.h>
 #include <utils/Log.h>
 
@@ -247,7 +248,7 @@
                 ts = requested;
                 break;
             }
-            // fall through
+            FALLTHROUGH_INTENDED;
         case TIMEOUT_CONTINUE:
             // FIXME we do not retry if requested < 10ms? needs documentation on this state machine
             if (!measure || requested->tv_sec < total.tv_sec ||
@@ -505,7 +506,7 @@
                 ts = requested;
                 break;
             }
-            // fall through
+            FALLTHROUGH_INTENDED;
         case TIMEOUT_CONTINUE:
             // FIXME we do not retry if requested < 10ms? needs documentation on this state machine
             if (requested->tv_sec < total.tv_sec ||
diff --git a/media/libaudioclient/include/media/AudioPolicyHelper.h b/media/libaudioclient/include/media/AudioPolicyHelper.h
index 73ee0a7..fbe9546 100644
--- a/media/libaudioclient/include/media/AudioPolicyHelper.h
+++ b/media/libaudioclient/include/media/AudioPolicyHelper.h
@@ -16,6 +16,7 @@
 #ifndef AUDIO_POLICY_HELPER_H_
 #define AUDIO_POLICY_HELPER_H_
 
+#include <android-base/macros.h>
 #include <system/audio.h>
 
 static inline
@@ -81,7 +82,7 @@
         break;
     case AUDIO_STREAM_ENFORCED_AUDIBLE:
         attr->flags  |= AUDIO_FLAG_AUDIBILITY_ENFORCED;
-        // intended fall through, attributes in common with STREAM_SYSTEM
+        FALLTHROUGH_INTENDED; // attributes in common with STREAM_SYSTEM
     case AUDIO_STREAM_SYSTEM:
         attr->content_type = AUDIO_CONTENT_TYPE_SONIFICATION;
         attr->usage = AUDIO_USAGE_ASSISTANCE_SONIFICATION;
diff --git a/media/libaudioprocessing/tests/Android.mk b/media/libaudioprocessing/tests/Android.mk
index 23e1c3a..8e081a3 100644
--- a/media/libaudioprocessing/tests/Android.mk
+++ b/media/libaudioprocessing/tests/Android.mk
@@ -78,6 +78,8 @@
     liblog \
     libutils \
 
+LOCAL_HEADER_LIBRARIES := libbase_headers
+
 LOCAL_MODULE := test-resampler
 
 LOCAL_MODULE_TAGS := optional
diff --git a/media/libaudioprocessing/tests/test-resampler.cpp b/media/libaudioprocessing/tests/test-resampler.cpp
index fbc9326..f178bde 100644
--- a/media/libaudioprocessing/tests/test-resampler.cpp
+++ b/media/libaudioprocessing/tests/test-resampler.cpp
@@ -27,6 +27,7 @@
 #include <math.h>
 #include <audio_utils/primitives.h>
 #include <audio_utils/sndfile.h>
+#include <android-base/macros.h>
 #include <utils/Vector.h>
 #include <media/AudioBufferProvider.h>
 #include <media/AudioResampler.h>
@@ -87,14 +88,14 @@
                 }
                 return numValues;
             }
-            // fall through
+            FALLTHROUGH_INTENDED;
         case ',':
             if (hadDigit) {
                 hadDigit = false;
                 numValues++;
                 break;
             }
-            // fall through
+            FALLTHROUGH_INTENDED;
         default:
             return -1;
         }
diff --git a/media/libmedia/Android.bp b/media/libmedia/Android.bp
index 1b3a1be..8921b22 100644
--- a/media/libmedia/Android.bp
+++ b/media/libmedia/Android.bp
@@ -3,6 +3,7 @@
     vendor_available: true,
     export_include_dirs: ["include"],
     header_libs:[
+        "libbase_headers",
         "libgui_headers",
         "libstagefright_headers",
         "media_plugin_headers",
diff --git a/media/libmedia/mediarecorder.cpp b/media/libmedia/mediarecorder.cpp
index 721a043..92cfb1c 100644
--- a/media/libmedia/mediarecorder.cpp
+++ b/media/libmedia/mediarecorder.cpp
@@ -20,6 +20,7 @@
 
 #include <inttypes.h>
 
+#include <android-base/macros.h>
 #include <utils/Log.h>
 #include <media/mediarecorder.h>
 #include <binder/IServiceManager.h>
@@ -597,7 +598,8 @@
             if (OK != ret) {
                 return ret;  // No need to continue
             }
-        }  // Intentional fall through
+            FALLTHROUGH_INTENDED;
+        }
         case MEDIA_RECORDER_INITIALIZED:
             ret = close();
             break;
diff --git a/media/libmediaplayer2/nuplayer2/Android.bp b/media/libmediaplayer2/nuplayer2/Android.bp
index 1634f35..c8ddc11 100644
--- a/media/libmediaplayer2/nuplayer2/Android.bp
+++ b/media/libmediaplayer2/nuplayer2/Android.bp
@@ -16,6 +16,7 @@
     ],
 
     header_libs: [
+        "libbase_headers",
         "libmediaplayer2_headers",
         "media_plugin_headers",
     ],
diff --git a/media/libmediaplayer2/nuplayer2/NuPlayer2Driver.cpp b/media/libmediaplayer2/nuplayer2/NuPlayer2Driver.cpp
index 03d17a5..bafa653 100644
--- a/media/libmediaplayer2/nuplayer2/NuPlayer2Driver.cpp
+++ b/media/libmediaplayer2/nuplayer2/NuPlayer2Driver.cpp
@@ -17,6 +17,7 @@
 //#define LOG_NDEBUG 0
 #define LOG_TAG "NuPlayer2Driver"
 #include <inttypes.h>
+#include <android-base/macros.h>
 #include <utils/Log.h>
 #include <cutils/properties.h>
 
@@ -297,8 +298,7 @@
         case STATE_PREPARED:
         {
             mPlayer->start();
-
-            // fall through
+            FALLTHROUGH_INTENDED;
         }
 
         case STATE_RUNNING:
@@ -940,7 +940,7 @@
                     mPlayer->pause();
                     mState = STATE_PAUSED;
                 }
-                // fall through
+                FALLTHROUGH_INTENDED;
             }
 
             case MEDIA2_ERROR:
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDriver.cpp b/media/libmediaplayerservice/nuplayer/NuPlayerDriver.cpp
index 3e5bdd6..f2c8f64 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerDriver.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDriver.cpp
@@ -17,6 +17,7 @@
 //#define LOG_NDEBUG 0
 #define LOG_TAG "NuPlayerDriver"
 #include <inttypes.h>
+#include <android-base/macros.h>
 #include <utils/Log.h>
 #include <cutils/properties.h>
 
@@ -344,7 +345,7 @@
 
             CHECK_EQ(mState, STATE_PREPARED);
 
-            // fall through
+            FALLTHROUGH_INTENDED;
         }
 
         case STATE_PAUSED:
@@ -353,7 +354,7 @@
         {
             mPlayer->start();
 
-            // fall through
+            FALLTHROUGH_INTENDED;
         }
 
         case STATE_RUNNING:
@@ -382,7 +383,7 @@
     switch (mState) {
         case STATE_RUNNING:
             mPlayer->pause();
-            // fall through
+            FALLTHROUGH_INTENDED;
 
         case STATE_PAUSED:
             mState = STATE_STOPPED;
@@ -991,7 +992,7 @@
                 mPlayer->pause();
                 mState = STATE_PAUSED;
             }
-            // fall through
+            FALLTHROUGH_INTENDED;
         }
 
         case MEDIA_ERROR:
diff --git a/media/libstagefright/codecs/vorbis/dec/SoftVorbis.cpp b/media/libstagefright/codecs/vorbis/dec/SoftVorbis.cpp
index 8912f8a..d534f64 100644
--- a/media/libstagefright/codecs/vorbis/dec/SoftVorbis.cpp
+++ b/media/libstagefright/codecs/vorbis/dec/SoftVorbis.cpp
@@ -548,11 +548,21 @@
         // Make sure that the next buffer output does not still
         // depend on fragments from the last one decoded.
 
+        mInputBufferCount = 0;
         mNumFramesOutput = 0;
+        if (mState != NULL) {
+            vorbis_dsp_clear(mState);
+            delete mState;
+            mState = NULL;
+        }
+        if (mVi != NULL) {
+            vorbis_info_clear(mVi);
+            delete mVi;
+            mVi = NULL;
+        }
         mSawInputEos = false;
         mSignalledOutputEos = false;
         mNumFramesLeftOnPage = -1;
-        vorbis_dsp_restart(mState);
     }
 }
 
diff --git a/media/libstagefright/foundation/AString.cpp b/media/libstagefright/foundation/AString.cpp
index c6ef75f..a8adff5 100644
--- a/media/libstagefright/foundation/AString.cpp
+++ b/media/libstagefright/foundation/AString.cpp
@@ -125,12 +125,10 @@
 }
 
 void AString::clear() {
-    if (mData && mData != kEmptyString) {
+    if (mData != kEmptyString) {
         free(mData);
-        mData = NULL;
+        mData = (char *)kEmptyString;
     }
-
-    mData = (char *)kEmptyString;
     mSize = 0;
     mAllocSize = 1;
 }
diff --git a/media/libstagefright/foundation/include/media/stagefright/foundation/ADebug.h b/media/libstagefright/foundation/include/media/stagefright/foundation/ADebug.h
index bac8fa9..a8b88fd 100644
--- a/media/libstagefright/foundation/include/media/stagefright/foundation/ADebug.h
+++ b/media/libstagefright/foundation/include/media/stagefright/foundation/ADebug.h
@@ -63,38 +63,21 @@
             __FILE__ ":" LITERAL_TO_STRING(__LINE__)    \
             " CHECK(" #condition ") failed.")
 
-#define MAKE_COMPARATOR(suffix,op)                          \
-    template<class A, class B>                              \
-    AString Compare_##suffix(const A &a, const B &b) {      \
-        AString res;                                        \
-        if (!(a op b)) {                                    \
-            res.append(a);                                  \
-            res.append(" vs. ");                            \
-            res.append(b);                                  \
-        }                                                   \
-        return res;                                         \
-    }
-
-MAKE_COMPARATOR(EQ,==)
-MAKE_COMPARATOR(NE,!=)
-MAKE_COMPARATOR(LE,<=)
-MAKE_COMPARATOR(GE,>=)
-MAKE_COMPARATOR(LT,<)
-MAKE_COMPARATOR(GT,>)
-
 #ifdef CHECK_OP
 #undef CHECK_OP
 #endif
 
 #define CHECK_OP(x,y,suffix,op)                                         \
     do {                                                                \
-        AString ___res = Compare_##suffix(x, y);                        \
-        if (!___res.empty()) {                                          \
+        const auto &a = x;                                              \
+        const auto &b = y;                                              \
+        if (!(a op b)) {                                                \
             AString ___full =                                           \
                 __FILE__ ":" LITERAL_TO_STRING(__LINE__)                \
                     " CHECK_" #suffix "( " #x "," #y ") failed: ";      \
-            ___full.append(___res);                                     \
-                                                                        \
+            ___full.append(a);                                          \
+            ___full.append(" vs. ");                                    \
+            ___full.append(b);                                          \
             LOG_ALWAYS_FATAL("%s", ___full.c_str());                    \
         }                                                               \
     } while (false)
diff --git a/services/audioflinger/Effects.cpp b/services/audioflinger/Effects.cpp
index a44b758..b3f5efd 100644
--- a/services/audioflinger/Effects.cpp
+++ b/services/audioflinger/Effects.cpp
@@ -248,7 +248,7 @@
     switch (mState) {
     case RESTART:
         reset_l();
-        // FALL THROUGH
+        FALLTHROUGH_INTENDED;
 
     case STARTING:
         // clear auxiliary effect input buffer for next accumulation
diff --git a/services/audioflinger/Threads.cpp b/services/audioflinger/Threads.cpp
index 4ca50d7..c2320bc 100644
--- a/services/audioflinger/Threads.cpp
+++ b/services/audioflinger/Threads.cpp
@@ -4357,7 +4357,7 @@
                     isActive = false;
                     break;
                 }
-                // fall through
+                FALLTHROUGH_INTENDED;
             case TrackBase::STOPPING_2:
             case TrackBase::PAUSED:
             case TrackBase::STOPPED:
diff --git a/services/audioflinger/Tracks.cpp b/services/audioflinger/Tracks.cpp
index a7c4253..6d25fb9 100644
--- a/services/audioflinger/Tracks.cpp
+++ b/services/audioflinger/Tracks.cpp
@@ -842,7 +842,7 @@
 
             // Offloaded track was draining, we need to carry on draining when resumed
             mResumeToStopping = true;
-            // fall through...
+            FALLTHROUGH_INTENDED;
         case ACTIVE:
         case RESUMING:
             mState = PAUSING;
diff --git a/services/audiopolicy/common/managerdefinitions/src/AudioInputDescriptor.cpp b/services/audiopolicy/common/managerdefinitions/src/AudioInputDescriptor.cpp
index 92332fb..1e0640c 100644
--- a/services/audiopolicy/common/managerdefinitions/src/AudioInputDescriptor.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/AudioInputDescriptor.cpp
@@ -313,14 +313,13 @@
 
 sp<AudioInputDescriptor> AudioInputCollection::getInputFromId(audio_port_handle_t id) const
 {
-    sp<AudioInputDescriptor> inputDesc = NULL;
     for (size_t i = 0; i < size(); i++) {
-        inputDesc = valueAt(i);
-        if (inputDesc->getId() == id) {
-            break;
+        const sp<AudioInputDescriptor> inputDescriptor = valueAt(i);
+        if (inputDescriptor->getId() == id) {
+            return inputDescriptor;
         }
     }
-    return inputDesc;
+    return NULL;
 }
 
 uint32_t AudioInputCollection::activeInputsCountOnDevices(audio_devices_t devices) const
diff --git a/services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp b/services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp
index 294a2a6..99b45c8 100644
--- a/services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp
@@ -681,14 +681,13 @@
 
 sp<SwAudioOutputDescriptor> SwAudioOutputCollection::getOutputFromId(audio_port_handle_t id) const
 {
-    sp<SwAudioOutputDescriptor> outputDesc = NULL;
     for (size_t i = 0; i < size(); i++) {
-        outputDesc = valueAt(i);
+        const sp<SwAudioOutputDescriptor> outputDesc = valueAt(i);
         if (outputDesc->getId() == id) {
-            break;
+            return outputDesc;
         }
     }
-    return outputDesc;
+    return NULL;
 }
 
 bool SwAudioOutputCollection::isAnyOutputActive(audio_stream_type_t streamToIgnore) const
diff --git a/services/audiopolicy/enginedefault/Android.mk b/services/audiopolicy/enginedefault/Android.mk
index cbbe306..837d5bb 100644
--- a/services/audiopolicy/enginedefault/Android.mk
+++ b/services/audiopolicy/enginedefault/Android.mk
@@ -34,6 +34,8 @@
 LOCAL_MODULE := libaudiopolicyenginedefault
 LOCAL_MODULE_TAGS := optional
 
+LOCAL_HEADER_LIBRARIES := libbase_headers
+
 LOCAL_STATIC_LIBRARIES := \
     libaudiopolicycomponents \
 
diff --git a/services/audiopolicy/enginedefault/src/Engine.cpp b/services/audiopolicy/enginedefault/src/Engine.cpp
index 267996c..3476419 100644
--- a/services/audiopolicy/enginedefault/src/Engine.cpp
+++ b/services/audiopolicy/enginedefault/src/Engine.cpp
@@ -25,6 +25,7 @@
 #endif
 
 #include "Engine.h"
+#include <android-base/macros.h>
 #include <AudioPolicyManagerObserver.h>
 #include <AudioPort.h>
 #include <IOProfile.h>
@@ -302,7 +303,7 @@
             break;
         }
         // when in call, DTMF and PHONE strategies follow the same rules
-        // FALL THROUGH
+        FALLTHROUGH_INTENDED;
 
     case STRATEGY_PHONE:
         // Force use of only devices on primary output if:
@@ -343,7 +344,7 @@
             device = availableOutputDevicesType & AUDIO_DEVICE_OUT_BLUETOOTH_SCO;
             if (device) break;
             // if SCO device is requested but no SCO device is available, fall back to default case
-            // FALL THROUGH
+            FALLTHROUGH_INTENDED;
 
         default:    // FORCE_NONE
             device = availableOutputDevicesType & AUDIO_DEVICE_OUT_HEARING_AID;
@@ -416,7 +417,7 @@
                     outputDeviceTypesToIgnore);
             break;
         }
-        // FALL THROUGH
+        FALLTHROUGH_INTENDED;
 
     case STRATEGY_ENFORCED_AUDIBLE:
         // strategy STRATEGY_ENFORCED_AUDIBLE uses same routing policy as STRATEGY_SONIFICATION
@@ -466,7 +467,7 @@
             }
         }
         // The second device used for sonification is the same as the device used by media strategy
-        // FALL THROUGH
+        FALLTHROUGH_INTENDED;
 
     case STRATEGY_ACCESSIBILITY:
         if (strategy == STRATEGY_ACCESSIBILITY) {
@@ -496,7 +497,7 @@
             }
         }
         // For other cases, STRATEGY_ACCESSIBILITY behaves like STRATEGY_MEDIA
-        // FALL THROUGH
+        FALLTHROUGH_INTENDED;
 
     // FIXME: STRATEGY_REROUTING follow STRATEGY_MEDIA for now
     case STRATEGY_REROUTING:
@@ -681,7 +682,7 @@
                 device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET;
                 break;
             }
-            // FALL THROUGH
+            FALLTHROUGH_INTENDED;
 
         default:    // FORCE_NONE
             if (availableDeviceTypes & AUDIO_DEVICE_IN_WIRED_HEADSET) {
diff --git a/services/camera/libcameraservice/device3/Camera3Device.cpp b/services/camera/libcameraservice/device3/Camera3Device.cpp
index 0db5642..c85d00f 100644
--- a/services/camera/libcameraservice/device3/Camera3Device.cpp
+++ b/services/camera/libcameraservice/device3/Camera3Device.cpp
@@ -2261,8 +2261,8 @@
                 return NULL;
             }
         }
-        // Check if stream is being prepared
-        if (mInputStream->isPreparing()) {
+        // Check if stream prepare is blocking requests.
+        if (mInputStream->isBlockedByPrepare()) {
             CLOGE("Request references an input stream that's being prepared!");
             return NULL;
         }
@@ -2312,8 +2312,8 @@
                 return NULL;
             }
         }
-        // Check if stream is being prepared
-        if (stream->isPreparing()) {
+        // Check if stream prepare is blocking requests.
+        if (stream->isBlockedByPrepare()) {
             CLOGE("Request references an output stream that's being prepared!");
             return NULL;
         }
@@ -4854,6 +4854,15 @@
                 captureRequest->mOutputStreams.size());
         halRequest->output_buffers = outputBuffers->array();
         std::set<String8> requestedPhysicalCameras;
+
+        sp<Camera3Device> parent = mParent.promote();
+        if (parent == NULL) {
+            // Should not happen, and nowhere to send errors to, so just log it
+            CLOGE("RequestThread: Parent is gone");
+            return INVALID_OPERATION;
+        }
+        nsecs_t waitDuration = kBaseGetBufferWait + parent->getExpectedInFlightDuration();
+
         for (size_t j = 0; j < captureRequest->mOutputStreams.size(); j++) {
             sp<Camera3OutputStreamInterface> outputStream = captureRequest->mOutputStreams.editItemAt(j);
 
@@ -4862,7 +4871,8 @@
                 // Only try to prepare video stream on the first video request.
                 mPrepareVideoStream = false;
 
-                res = outputStream->startPrepare(Camera3StreamInterface::ALLOCATE_PIPELINE_MAX);
+                res = outputStream->startPrepare(Camera3StreamInterface::ALLOCATE_PIPELINE_MAX,
+                        false /*blockRequest*/);
                 while (res == NOT_ENOUGH_DATA) {
                     res = outputStream->prepareNextBuffer();
                 }
@@ -4874,6 +4884,7 @@
             }
 
             res = outputStream->getBuffer(&outputBuffers->editItemAt(j),
+                    waitDuration,
                     captureRequest->mOutputSurfaces[j]);
             if (res != OK) {
                 // Can't get output buffer from gralloc queue - this could be due to
@@ -4900,13 +4911,6 @@
         totalNumBuffers += halRequest->num_output_buffers;
 
         // Log request in the in-flight queue
-        sp<Camera3Device> parent = mParent.promote();
-        if (parent == NULL) {
-            // Should not happen, and nowhere to send errors to, so just log it
-            CLOGE("RequestThread: Parent is gone");
-            return INVALID_OPERATION;
-        }
-
         // If this request list is for constrained high speed recording (not
         // preview), and the current request is not the last one in the batch,
         // do not send callback to the app.
@@ -5533,7 +5537,7 @@
     Mutex::Autolock l(mLock);
     sp<NotificationListener> listener = mListener.promote();
 
-    res = stream->startPrepare(maxCount);
+    res = stream->startPrepare(maxCount, true /*blockRequest*/);
     if (res == OK) {
         // No preparation needed, fire listener right off
         ALOGV("%s: Stream %d already prepared", __FUNCTION__, stream->getId());
@@ -5621,7 +5625,7 @@
 
     auto it = mPendingStreams.begin();
     for (; it != mPendingStreams.end();) {
-        res = it->second->startPrepare(it->first);
+        res = it->second->startPrepare(it->first, true /*blockRequest*/);
         if (res == OK) {
             if (listener != NULL) {
                 listener->notifyPrepared(it->second->getId());
diff --git a/services/camera/libcameraservice/device3/Camera3Device.h b/services/camera/libcameraservice/device3/Camera3Device.h
index ef3cbc4..131d62f 100644
--- a/services/camera/libcameraservice/device3/Camera3Device.h
+++ b/services/camera/libcameraservice/device3/Camera3Device.h
@@ -221,6 +221,7 @@
     static const size_t        kInFlightWarnLimitHighSpeed = 256; // batch size 32 * pipe depth 8
     static const nsecs_t       kDefaultExpectedDuration = 100000000; // 100 ms
     static const nsecs_t       kMinInflightDuration = 5000000000; // 5 s
+    static const nsecs_t       kBaseGetBufferWait = 3000000000; // 3 sec.
     // SCHED_FIFO priority for request submission thread in HFR mode
     static const int           kRequestThreadPriority = 1;
 
diff --git a/services/camera/libcameraservice/device3/Camera3SharedOutputStream.cpp b/services/camera/libcameraservice/device3/Camera3SharedOutputStream.cpp
index 2bb9ff7..fb3ce4c 100644
--- a/services/camera/libcameraservice/device3/Camera3SharedOutputStream.cpp
+++ b/services/camera/libcameraservice/device3/Camera3SharedOutputStream.cpp
@@ -60,9 +60,8 @@
         }
     }
 
-    android::PixelFormat format = isFormatOverridden() ? getOriginalFormat() : getFormat();
     res = mStreamSplitter->connect(initialSurfaces, usage, mUsage, camera3_stream::max_buffers,
-            getWidth(), getHeight(), format, &mConsumer);
+            getWidth(), getHeight(), getFormat(), &mConsumer);
     if (res != OK) {
         ALOGE("%s: Failed to connect to stream splitter: %s(%d)",
                 __FUNCTION__, strerror(-res), res);
diff --git a/services/camera/libcameraservice/device3/Camera3Stream.cpp b/services/camera/libcameraservice/device3/Camera3Stream.cpp
index 1105b75..6870350 100644
--- a/services/camera/libcameraservice/device3/Camera3Stream.cpp
+++ b/services/camera/libcameraservice/device3/Camera3Stream.cpp
@@ -61,6 +61,7 @@
     mOldUsage(0),
     mOldMaxBuffers(0),
     mPrepared(false),
+    mPrepareBlockRequest(true),
     mPreparedBufferIdx(0),
     mLastMaxCount(Camera3StreamInterface::ALLOCATE_PIPELINE_MAX),
     mBufferLimitLatency(kBufferLimitLatencyBinSize),
@@ -327,6 +328,7 @@
     // Reset prepared state, since buffer config has changed, and existing
     // allocations are no longer valid
     mPrepared = false;
+    mPrepareBlockRequest = true;
     mStreamUnpreparable = false;
 
     status_t res;
@@ -381,7 +383,7 @@
     return mStreamUnpreparable;
 }
 
-status_t Camera3Stream::startPrepare(int maxCount) {
+status_t Camera3Stream::startPrepare(int maxCount, bool blockRequest) {
     ATRACE_CALL();
 
     Mutex::Autolock l(mLock);
@@ -413,8 +415,6 @@
         return INVALID_OPERATION;
     }
 
-
-
     size_t pipelineMax = getBufferCountLocked();
     size_t clampedCount = (pipelineMax < static_cast<size_t>(maxCount)) ?
             pipelineMax : static_cast<size_t>(maxCount);
@@ -422,6 +422,7 @@
             pipelineMax : clampedCount;
 
     mPrepared = bufferCount <= mLastMaxCount;
+    mPrepareBlockRequest = blockRequest;
 
     if (mPrepared) return OK;
 
@@ -435,9 +436,9 @@
     return NOT_ENOUGH_DATA;
 }
 
-bool Camera3Stream::isPreparing() const {
+bool Camera3Stream::isBlockedByPrepare() const {
     Mutex::Autolock l(mLock);
-    return mState == STATE_PREPARING;
+    return mState == STATE_PREPARING && mPrepareBlockRequest;
 }
 
 bool Camera3Stream::isAbandoned() const {
@@ -569,6 +570,7 @@
 }
 
 status_t Camera3Stream::getBuffer(camera3_stream_buffer *buffer,
+        nsecs_t waitBufferTimeout,
         const std::vector<size_t>& surface_ids) {
     ATRACE_CALL();
     Mutex::Autolock l(mLock);
@@ -586,13 +588,16 @@
         ALOGV("%s: Already dequeued max output buffers (%d), wait for next returned one.",
                         __FUNCTION__, camera3_stream::max_buffers);
         nsecs_t waitStart = systemTime(SYSTEM_TIME_MONOTONIC);
-        res = mOutputBufferReturnedSignal.waitRelative(mLock, kWaitForBufferDuration);
+        if (waitBufferTimeout < kWaitForBufferDuration) {
+            waitBufferTimeout = kWaitForBufferDuration;
+        }
+        res = mOutputBufferReturnedSignal.waitRelative(mLock, waitBufferTimeout);
         nsecs_t waitEnd = systemTime(SYSTEM_TIME_MONOTONIC);
         mBufferLimitLatency.add(waitStart, waitEnd);
         if (res != OK) {
             if (res == TIMED_OUT) {
                 ALOGE("%s: wait for output buffer return timed out after %lldms (max_buffers %d)",
-                        __FUNCTION__, kWaitForBufferDuration / 1000000LL,
+                        __FUNCTION__, waitBufferTimeout / 1000000LL,
                         camera3_stream::max_buffers);
             }
             return res;
diff --git a/services/camera/libcameraservice/device3/Camera3Stream.h b/services/camera/libcameraservice/device3/Camera3Stream.h
index a60cb56..9c0f4c0 100644
--- a/services/camera/libcameraservice/device3/Camera3Stream.h
+++ b/services/camera/libcameraservice/device3/Camera3Stream.h
@@ -232,6 +232,11 @@
      *
      * This call performs no allocation, so is quick to call.
      *
+     * blockRequest specifies whether prepare will block upcoming capture
+     * request. This flag should only be set to false if the caller guarantees
+     * the whole buffer preparation process is done before capture request
+     * comes in.
+     *
      * Returns:
      *    OK if no more buffers need to be preallocated
      *    NOT_ENOUGH_DATA if calls to prepareNextBuffer are needed to finish
@@ -240,12 +245,12 @@
      *    INVALID_OPERATION if called when not in CONFIGURED state, or a
      *        valid buffer has already been returned to this stream.
      */
-    status_t         startPrepare(int maxCount);
+    status_t         startPrepare(int maxCount, bool blockRequest);
 
     /**
-     * Check if the stream is mid-preparing.
+     * Check if the request on a stream is blocked by prepare.
      */
-    bool             isPreparing() const;
+    bool             isBlockedByPrepare() const;
 
     /**
      * Continue stream buffer preparation by allocating the next
@@ -311,6 +316,7 @@
      *
      */
     status_t         getBuffer(camera3_stream_buffer *buffer,
+            nsecs_t waitBufferTimeout,
             const std::vector<size_t>& surface_ids = std::vector<size_t>());
 
     /**
@@ -533,6 +539,7 @@
     // has been called sufficient number of times, or stream configuration
     // had to register buffers with the HAL
     bool mPrepared;
+    bool mPrepareBlockRequest;
 
     Vector<camera3_stream_buffer_t> mPreparedBuffers;
     size_t mPreparedBufferIdx;
diff --git a/services/camera/libcameraservice/device3/Camera3StreamInterface.h b/services/camera/libcameraservice/device3/Camera3StreamInterface.h
index 9ed7184..3d45c89 100644
--- a/services/camera/libcameraservice/device3/Camera3StreamInterface.h
+++ b/services/camera/libcameraservice/device3/Camera3StreamInterface.h
@@ -160,6 +160,11 @@
      * PREPARING state. Otherwise, returns NOT_ENOUGH_DATA and transitions
      * to PREPARING.
      *
+     * blockRequest specifies whether prepare will block upcoming capture
+     * request. This flag should only be set to false if the caller guarantees
+     * the whole buffer preparation process is done before capture request
+     * comes in.
+     *
      * Returns:
      *    OK if no more buffers need to be preallocated
      *    NOT_ENOUGH_DATA if calls to prepareNextBuffer are needed to finish
@@ -168,12 +173,12 @@
      *    INVALID_OPERATION if called when not in CONFIGURED state, or a
      *        valid buffer has already been returned to this stream.
      */
-    virtual status_t startPrepare(int maxCount) = 0;
+    virtual status_t startPrepare(int maxCount, bool blockRequest) = 0;
 
     /**
-     * Check if the stream is mid-preparing.
+     * Check if the request on a stream is blocked by prepare.
      */
-    virtual bool     isPreparing() const = 0;
+    virtual bool     isBlockedByPrepare() const = 0;
 
     /**
      * Continue stream buffer preparation by allocating the next
@@ -237,6 +242,7 @@
      *
      */
     virtual status_t getBuffer(camera3_stream_buffer *buffer,
+            nsecs_t waitBufferTimeout,
             const std::vector<size_t>& surface_ids = std::vector<size_t>()) = 0;
 
     /**
diff --git a/services/camera/libcameraservice/device3/Camera3StreamSplitter.cpp b/services/camera/libcameraservice/device3/Camera3StreamSplitter.cpp
index 59ac636..a0be608 100644
--- a/services/camera/libcameraservice/device3/Camera3StreamSplitter.cpp
+++ b/services/camera/libcameraservice/device3/Camera3StreamSplitter.cpp
@@ -182,12 +182,19 @@
         return BAD_VALUE;
     }
 
-  status_t res = native_window_set_buffers_dimensions(outputQueue.get(),
+    status_t res = native_window_set_buffers_dimensions(outputQueue.get(),
             mWidth, mHeight);
     if (res != NO_ERROR) {
         SP_LOGE("addOutput: failed to set buffer dimensions (%d)", res);
         return res;
     }
+    res = native_window_set_buffers_format(outputQueue.get(),
+            mFormat);
+    if (res != OK) {
+        ALOGE("%s: Unable to configure stream buffer format %#x for surfaceId %zu",
+                __FUNCTION__, mFormat, surfaceId);
+        return res;
+    }
 
     sp<IGraphicBufferProducer> gbp = outputQueue->getIGraphicBufferProducer();
     // Connect to the buffer producer