Changes in this update:
Enhancements
Added Android SDK support, which includes new implementations of the MediaPlayer, audio recorder, and logger.
Added the InteractionModel interface, which enables Alexa Routines.
Optional configuration changes have been introduced. Now a network interface can be specified to connect to the SDK via curl.
Build options can be configured to support Android.
Added GUI 1.1 support. The PlaybackController has been extended to support new control functionality, and the System interface has been updated to support SoftwareInfo.
Bug Fixes
Installation script execution time has been reduced. Now a single branch clone is used, such as the master branch.
Issue 846 - Fixed a bug where audio stuttered on slow network connections.
Removed the SpeakerManager constructor check for non-zero speakers.
Issue 891 - Resolved incorrect offset in the PlaybackFinished event.
Issue 727 - Fixed an issue where the sample app behaved erratically upon network disconnection/reconnection.
Issue 910 - Fixed a GCC 8+ compilation issue. Note: issues related to -Wclass-memaccess will still trigger warnings, but won't fail compilation.
Issue 871 Issue 880 - Fixed compiler warnings.
Fixed a bug where Ted Talks would not stream via TuneIn.
Fixed an issue where the PryonLiteKeywordDetector would not restart.
Fixed an issue where PlaybackStutterStarted and PlaybackStutterFinished events were not being sent due to a missing Gstreamer queue element.
Fixed a bug where the CapabilitiesDelegate database was not being cleared upon logout.
Fixed in issue that caused the following compiler warning “class has virtual functions but non-virtual destructor”.
Fixed a bug where BlueZDeviceManager was not properly destroyed.
Fixed a bug that occurred when the initializer list was converted to std::unordered_set.
Fixed a build error that occurred when building with BUILD_TESTING=Off.
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.
* The Alexa app doesn't always indicate when a device is successfully connected via Bluetooth.
* Connecting a product to streaming media via Bluetooth will sometimes stop media playback within the source application. Resuming playback through the source application or toggling next/previous will correct playback.
* When a source device is streaming silence via Bluetooth, the Alexa companion app indicates that audio content is streaming.
* The Bluetooth agent assumes that the Bluetooth adapter is always connected to a power source. Disconnecting from a power source during operation is not yet supported.
* On some products, interrupted Bluetooth playback may not resume if other content is locally streamed.
* On Raspberry Pi, when streaming audio via Bluetooth, sometimes the audio stream stutters.
* These CapabilitiesDelegateTest tests have been temporarily disabled to prevent build errors for the Android build: CapabilitiesDelegateTest.withCapabilitiesHappyCase, CapabilitiesDelegateTest.republish, CapabilitiesDelegateTest.testClearData.
* make integration is currently not available for Android. In order to run integration tests on Android, you'll need to manually upload the test binary file along with the any input file. At that point, the adb can be used to run the integration tests.
* On Raspberry Pi running Android Things with HDMI output audio, beginning of speech is truncated when Alexa responds to user TTS.
* Spotify does not completely shut down when the sample app quits.
Changes in this update:
Enhancements
* Added the Bluetooth interface, which manages the Bluetooth connection between Alexa-enabled products and peer devices. This release supports A2DP-SINK and AVRCP profiles. Note: Bluetooth is optional and is currently limited to Raspberry Pi and Linux platforms.
* Added new Bluetooth dependencies for Linux and Raspberry Pi.
* Device Capability Framework (DCF) renamed to Capabilities.
* Updated the non-CBL client ID error message to be more specific.
* Updated the sample app to enter a limited interaction mode after an unrecoverable error.
Bug Fixes
* Issue 597 - Fixed a bug where the sample app did not respond to locale change settings.
* Fixed issue where GStreamer 1.14 MediaPlayerTest failed on Windows.
* Fixed an issue where a segmentation fault was triggered after unrecoverable error handling.
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.
* The Alexa app doesn't always indicate when a device is successfully connected via Bluetooth.
* Connecting a product to streaming media via Bluetooth will sometimes stop media playback within the source application. Resuming playback through the source application or toggling next/previous will correct playback.
* When streaming silence via Bluetooth, the Alexa companion app will sometimes indicate that media content is streaming.
* The Bluetooth agent assumes that the Bluetooth adapter is always connected to a power source. Disconnecting from a power source during operation is not yet supported.
* On some products, interrupted Bluetooth playback may not resume if other content is locally streamed.
* When streaming content via Bluetooth, under certain conditions playback will fail to resume and the sample app hangs on exit. This is due to a conflict between the GStreamer pipeline and the Bluetooth agent.
* On Raspberry Pi, when streaming audio via Bluetooth, sometimes the audio stream stutters.
* On Raspberry Pi, BlueALSA must be terminated each time the device boots. See Raspberry Pi Quick Start Guide for more information.
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**
* Added the `ExternalMediaPlayer` Capability Agent. This allows playback from music providers that control their own playback queue. Example: Spotify.
* Added support for AU and NZ to the `SampleApp`.
* Firmware version can now be sent to Alexa via the `SoftwareInfo` event. The firmware version is specified in the config file under the `sampleApp` object as an integer value named [`firmwareVersion`](https://github.com/alexa/avs-device-sdk/blob/master/Integration/AlexaClientSDKConfig.json#L52).
* The new `f` command was added to the `SampleApp` which allows the firmware version to be updated at run-time.
* Optional configuration changes have been introduced. Now a [default log level](https://github.com/alexa/avs-device-sdk/blob/master/Integration/AlexaClientSDKConfig.json#L93) can be set for `ACSDK_LOG_MODULE` components, globally or individually. This value is specified under a new root level configuration object called `logger`, and the value itself is named `logLevel`. This allows you to limit the degree of logging to that default value, such as `ERROR`or `INFO`.
**Bug Fixes**
* Fixed bug where `AudioPlayer` progress reports were not being sent, or were being sent incorrectly.
* [Issue 408](https://github.com/alexa/avs-device-sdk/issues/408) - Irrelevant code related to `UrlSource` was removed from the `GStreamer-based MediaPlayer` implementation.
* The `TZ` variable no longer needs to be set to `UTC` when building the `SampleApp`.
* Fixed a bug where `CurlEasyHandleWrapper` logged unwanted data on failure conditions.
* Fixed a bug to improve `SIGPIPE` handling.
* Fixed a bug where the filename and classname were mismatched. Changed `UrlToAttachmentConverter.h` to `UrlContentToAttachmentConverter.h`,and `UrlToAttachmentConverter.cpp` to `UrlContentToAttachmentConverter.cpp`
**Known Issues**
* The `ACL` may encounter issues if audio attachments are received but not consumed.
* Display Cards for Kindle don't render.
* If using the GStreamer-based `MediaPlayer` implementation, after muting and un-muting an audio item, the next item in the queue will begin playing rather than continuing playback of the originally muted audio item.
* `SpeechSynthesizerState` currently uses `GAINING_FOCUS` and `LOSING_FOCUS` as a workaround for handling intermediate state. These states may be removed in a future release.
* Music playback doesn't immediately stop when a user barges-in on iHeartRadio.
- Changes in this update:
- Better GStreamer error reporting. MediaPlayer used to only report `MEDIA_ERROR_UNKNOWN`, now reports more specific errors as defined in `ErrorType.h`.
- Codebase has been formatted for easier reading.
- `DirectiveRouter::removeDirectiveHandler()` signature changed and now returns a bool indicating if given handler should be successfully removed or not.
- Cleanup of raw and shared pointers in the creation of `Transport` objects.
- `HTTP2Stream`s now have IDs assigned as they are acquired as opposed to created, making associated logs easier to interpret.
- `AlertsCapabilityAgent` has been refactored.
- Alert management has been factored out into an `AlertScheduler` class.
- Creation of Reminder (implements Alert) class.
- Added new capability agent for `PlaybackController` with unit tests.
- Added Settings interface with unit tests.
- Return type of `getOffsetInMilliseconds()` changed from `int64_t` to `std::chronology::milliseconds`.
- Added `AudioPlayer` unit tests.
- Added teardown for all Integration tests except Alerts.
- Implemented PlaylistParser.
- Bug fixes:
- AIP getting stuck in `LISTENING` or `THINKING` and refusing user input on network outage.
- SampleApp crashing if running for 5 minutes after network disconnect.
- Issue where on repeated user barge-ins, `AudioPlayer` would not pause. Specifically, the third attempt to “Play iHeartRadio” would not result in currently-playing music pausing.
- Utterances being ignored after particularly long TTS.
- GStreamer errors cropping up on SampleApp exit as a result of accessing the pipeline before it’s been setup.
- Crashing when playing one URL after another.
- Buffer overrun in Alerts Renderer.
- [SampleApp crashing when issuing "Alexa skip" command with iHeartRadio.](https://github.com/alexa/avs-device-sdk/issues/153)
- [`HTTP2Transport` network thread triggering a join on itself.](https://github.com/alexa/avs-device-sdk/issues/127)
- [`HTTP2Stream` request handling truncating exception messages.](https://github.com/alexa/avs-device-sdk/issues/67)
- [`AudioPlayer` was attempting an incorrect state transition from `STOPPED` to `PLAYING` through a `playbackResumed`.](https://github.com/alexa/avs-device-sdk/issues/138)
Changes in this update
- Added a fix to the sample app so that the StateSynchronization event is the first that gets sent to AVS.
- Added a POST_CONNECTED enum to ConnectionStatusObserver.
- StateSychronizer now automatically sends a StateSynchronization event when it receives a notification that ACL is CONNECTED.
- Added make install for installing the AVS Device SDK.
- Added an optional make networkIntegration for integration tests for slow network (only on Linux platforms).
- Added shutdown management which fully cleans up SDK objects during teardown.
- Fixed an issue with AudioPlayer barge-in which was preventing subsequent audio from playing.
- Changed Mediaplayer buffering to reduce stuttering.
- Known Issues:
- Connection loss during listening keeps the app in that state even after connection is regained. Pressing ‘s’ unsticks the state.
- Play/Pause media restarts it from the beginning.
- SpeechSynthesizer shows wrong UX state during a burst of Speaks.
- Quitting the sample app while AudioPlayer is playing something causes a segmentation fault.
- AudioPlayer sending PlaybackPaused during flash briefing.
- Long Delay playing live stations on iHeartRadio.
- Teardown warnings at the end of integration tests.
Changes in this update
- Added `AudioPlayer` capability agent.
- Supports iHeartRadio.
- `StateSynchronizer` has been updated to better enforce that `System.SynchronizeState`is the first Event sent on a connection to AVS.
- Additional tests have been added to `ACL`.
- The `Sample App` has been updated with several small fixes and improvements.
- `ADSL` was updated such that all directives are now blocked while the handling of previous `SpeechSynthesizer.Speak`
directives complete. Because any directive may now be blocked, the `preHandleDirective() / handleDirective()` path
is now used for handling all directives.
- Fixes for the following GitHub issues:
- https://github.com/alexa/alexa-client-sdk/issues/44.
- A bug causing `ACL` to not send a ping to AVS every 5 minutes, leading to periodic server disconnects, was fixed.
- Subtle race condition issues were addressed in the `Executor` class, resolving some intermittent crashes.
Aurelio Akira Mello Matsui
Federico Rozenberg
Marco Visaya
Celina G. Val
avramson
Mradula Nayak