Changes in this update:
**Enhancements**
* Added support for [Bluetooth Interface 2.0](https://developer.amazon.com/docs/alexa/alexa-voice-service/bluetooth.html). This interface adds support for multiple simultaneous connections to Bluetooth peripherals.
* Added support for [Audio Focus Manager Library (AFML) Multi Activity](https://developer.amazon.com/docs/alexa/avs-device-sdk/sdk-interaction-model.html). This interface enhances the behavior of a device so it can handle more than one Activity per Channel.
* Added the `obfuscatePrivateData` logging method to help remove certain data from logs.
* Updated `MediaPlayerObserverInterface` to include metadata about playback states.
* Added SDK extension point. You can integrate CMake projects into the SDK without cloning those projects into a subdirectory.
**Bug fixes**
* Fixed Mac/OSX issue that caused an unresponsive Sample App when not connected to the internet.
* Fixed issue that prevented sample app from exiting various states.
* Fixed `UIManager` issue that caused an error in the logs when the device with built without the wake word enabled.
* Fixed volume issue that caused timers to ascend in volume when setting up ascending alarms.
* Fixed alert volume issue that caused any changes to the alert volume to notify observers.
* Fixed EQ issue where changes to the EQ band levels didn't notify observers.
* Fixed Bluetooth bug that caused short notification sounds from a connected phone to stop audio playback on the device.
**Known Issues**
* Build errors can occur on the Raspberry Pi due to incorrect linking of the atomic library. A suggested workaround is to add the following `set(CMAKE_CXX_LINK_FLAGS "${CMAKE_CXX_LINK_FLAGS} -latomic")` to the top most CMake file.
* The WebVTT dependency required for `captions` isn't supported for Windows/Android.
* Exiting from the setting option takes you back to the Options Menu directly. It doesn't provide a message to indicate that you're back in the main menu.
* Failing Unit Tests and AIP Unit tests are disabled on Windows
* `AudioInputProcessor` unit tests don't build on Windows when with the `-DCMAKE_BUILD_TYPE=DEBUG` cmake parameter.
* Music playback history isn't displayed in the Alexa app for certain account and device types.
* When using Gnu Compiler Collection 8+ (GCC 8+), `-Wclass-memaccess` triggers warnings. You can ignore these, they don't cause the build to fail.
* Android error `libDefaultClient.so not found` might occur. Resolve this by upgrading to ADB version 1.0.40.
* If a device loses a network connection, the lost connection status isn't returned though local TTS.
* ACL encounters issues if it receives audio attachments but doesn't consume them.
* Media streamed through Bluetooth might abruptly stop. To restart playback, resume the media in the source application or toggle next/previous.
* If a connected Bluetooth device is inactive, the Alexa app might indicates that audio is playing.
* The Bluetooth agent assumes that the Bluetooth adapter is always connected to a power source. Disconnecting from a power source during operation isn't yet supported.
* When using some products, interrupted Bluetooth playback might not resume if other content is locally streamed.
* `make integration` isn't available for Android. To run Android integration tests, manually upload the test binary and input file and run ADB.
* Alexa might truncate the beginning of speech when responding to text-to-speech (TTS) user events. This only impacts Raspberry Pi devices running Android Things with HDMI output audio.
* A reminder TTS message doesn't play if the sample app restarts and loses a network connection. Instead, the default alarm tone plays twice.
* `ServerDisconnectIntegratonTest` tests are disabled until they are updated to reflect new service behavior.
* The `DirectiveSequencerTest.test_handleBlockingThenImmediatelyThenNonBockingOnSameDialogId` test fails intermittently.
Changes in this update:
**Enhancements**
* `AuthDelegate` and `AuthServer.py` have been replaced by `CBLAUthDelegate`, which provides a more straightforward path to authorization.
* Added a new configuration property called [`cblAuthDelegate`](https://github.com/alexa/avs-device-sdk/blob/master/Integration/AlexaClientSDKConfig.json#L2). This object specifies parameters for `CBLAuthDelegate`.
* Added a new configuration property called [`miscDatabase`](https://github.com/alexa/avs-device-sdk/blob/master/Integration/AlexaClientSDKConfig.json#L34), which is a generic key/value database to be used by various components.
* Added a new configuration property called [`dcfDelegate`](https://github.com/alexa/avs-device-sdk/blob/master/Integration/AlexaClientSDKConfig.json#L17) This object specifies parameters for `DCFDelegate`. Within this object, values were added for the 'endpoint' and `overridenDcfPublishMessageBody`. 'endpoint' is the endpoint to connect to in order to send device capabilities. `overridenDcfPublishMessageBody`is the message that will get sent out to the Capabilities API. Note: values within the `dcfDelegate` object will only work in `DEBUG` builds.
* Added a new configuration property called [`deviceInfo`](https://github.com/alexa/avs-device-sdk/blob/master/Integration/AlexaClientSDKConfig.json#L9) which specifies device-identifying information for use by the Device Capability Framework (DCF), and for authorization (CBLAuthDelegate).
* Updated the Directive Sequencer to support wildcard directive handlers. This allows a handler for a given AVS interface to register at the namespace level, rather than specifying the names of all directives within that namespace.
* Updated the Raspberry Pi installation script to include `alsasink` in the configuration file.
* Added `audioSink` as a configuration option. This allows users to override the audio sink element used in `Gstreamer`.
* Added an interface for monitoring internet connection status: `InternetConnectionMonitorInterface.h`.
* The Alexa Communications Library (ACL) is no longer required to wait until authorization has succeeded before attempting to connect to AVS. Instead, `HTTP2Transport` handles waiting for authorization to complete.
* Added the Device Capabilities Framework (DCF) delegate. Device capabilities can now be sent for each capability interface using DCF publish messages.
* The sample app has been updated to send DCF publish messages, which will automatically occur when the sample app starts. Note: a DCF publish message must be successfully sent in order for communication with AVS to occur.
* The SDK now supports HTTP PUT messages.
* Added support for opt-arg style arguments and multiple configuration files. Now, the sample app can be invoked by either of these commands: `SampleApp <configfile> <debuglevel>` OR `SampleApp -C file1 -C file2 ... -L loglevel`.
**Bug Fixes**
* Issues [447](https://github.com/alexa/avs-device-sdk/issues/447) and [553](https://github.com/alexa/avs-device-sdk/issues/553) Fixed the `AttachmentRenderSource`'s handling of `BLOCKING` `AttachmentReaders`.
* Updated the `Logger` implementation to be more resilient to `nullptr` string inputs.
* Fixed a `TimeUtils` utility-related compile issue.
* Fixed a bug in which alerts failed to activate if the system was restarted without network connection.
* Fixed Android 64-bit build failure issue.
**Known Issues**
* The `ACL` may encounter issues if audio attachments are received but not consumed.
* `SpeechSynthesizerState` currently uses `GAINING_FOCUS` and `LOSING_FOCUS` as a workaround for handling intermediate state. These states may be removed in a future release.
* Some ERROR messages may be printed during start-up event if initialization proceeds normally and successfully.
* If an unrecoverable authorization error or an unrecoverable DCF error is encountered, the sample app may crash on shutdown.
* If a non-CBL `clientId` is included in the `deviceInfo` section of `AlexaClientSDKConfig.json`, the error will be reported as an unrecoverable authorization error, rather than a more specific error.
Changes in this update
* **Enhancements**
* Updated MediaPlayer to solve stability issues
* All capability agents were refined to work with the updated MediaPlayer
* Added the TemplateRuntime capability agent
* Added the SpeakerManager capability agent
* Added a configuration option ("sampleApp":"endpoint") that allows the endpoint that SampleApp connects to to be specified without changing code or rebuilding
* Added very verbose capture of libcurl debug information
* Added an observer interface to observer audio state changes from AudioPlayer
* Added support for StreamMetadataExtracted Event. Stream tags found in the stream are represented in JSON and sent to AVS
* Added to the SampleApp a simple GuiRenderer as an observer to the TemplateRuntime Capability Agent
* Moved shared libcurl functionality to AVSCommon/Utils
* Added a CMake option to exclude tests from the "make all" build. Use "cmake <absolute-path-to-source>
-DACSDK_EXCLUDE_TEST_FROM_ALL=ON" to enable it. When this option is enabled "make unit" and "make integration" still could be used to build and run the tests
* **Bug fixes**:
* Previously scheduled alerts now play following a restart
* General stability fixes
* Bug fix for CertifiedSender blocking forever if the network goes down while it's trying to send a message to AVS
* Fixes for known issue of Alerts integration tests fail: AlertsTest.UserLongUnrelatedBargeInOnActiveTimer and AlertsTest.handleOneTimerWithVocalStop
* Attempting to end a tap-to-talk interaction with the tap-to-talk button wouldn't work
* SharedDataStream could encounter a race condition due to a combination of a blocking Reader and a Writer closing before writing any data
* Bug-fix for the ordering of notifications within alerts scheduling. This fixes the issue where a local-stop on an alert would also stop a subsequent alert if it were to begin without delay
* **Known Issues**
* Capability agent for Notifications is not included in this release
* Inconsistent playback behavior when resuming content ("Alexa, pause." / "Alexa, resume."). Specifically, handling playback offsets, which causes the content to play from the start. This behavior is also occasionally seen with "Next" /
"Previous".
* `ACL`'s asynchronous receipt of audio attachments may manage resources poorly in scenarios where attachments are received but not consumed.
Changes in this update
- Added a getConfiguration() method to DirectiveHandlerInterface to register Capability Agents with Directive Sequencer.
- Fix race condition with reading attachments before a writer exists.
- Use of new Logging abstraction layer in modules - ADSL,AFML,ContextManager,AuthDelegate,AIP,KWD,Mediaplayer.
- Added ACL stream processing with Pause and redrive.
- Removed the dependency of ACL Library on Authdelegate.
- Added and interface to allow ACL to Add/Remove ConnectionStatusObserverInterface.
- Fixed compile errors in KittAi, DirectiveHandler and compiler warnings in AIP test.
- Corrected formatting on the files.
- Fixes for the following Github issues
- https://github.com/alexa/alexa-client-sdk/issues/21
- https://github.com/alexa/alexa-client-sdk/issues/25
Changes in this update:
- Added the CapabilityAgent base class that is used to build capability agent
implementations.
- Added the ContextManager class that allows multiple Capability Agents to
store and access state. These events include context, which is used to
communicate the state of each capability agent to AVS:
- Recognize
- PlayCommandIssued
- PauseCommandIssued
- NextCommandIssued
- PreviousCommandIssued
- SynchronizeState
- ExceptionEncountered
- Implemented the SharedDataStream (SDS) to asynchronously communicate data
between a local reader and writer.
- Added AudioInputProcessor (AIP), an implementation of a SpeechRecognizer
capability agent.
- Added the WakeWord Detector (WWD), which recognizes keywords in audio streams.
v0.3 implements a wrapper for KITT.ai.
- Added a new implementation of AttachmentManager and associated classes for use
with SDS.
- Updated the ACL to support asynchronously sending audio to AVS.
Alexandre Mendonca
Caleigh Minshall
Marco Visaya
Andken
Mradula Nayak
Ken Cecka