Releases · awslabs/amazon-kinesis-video-streams-producer-c

What’s new:

Provision to disable creating stream if previously created or to disallow stream creation using the SDK with the StreamInfo.StreamCaps.allowStreamCreation
New API to create default callback provider for IoT with CURL connection and completion timeouts: createCurlIotCredentialProviderWithTimeAndTimeout , createDefaultCallbacksProviderWithIotCertificateAndTimeouts and createIotAuthCallbacksWithTimeouts
Added support for China (Beijing) region
New API to set up log filtering with File logging callback provider: addFileLoggerWithFilteringPlatformCallbacksProvider

Sample:

New sample to demonstrate offline streaming mode
Existing video only sample modified to allow codec setting to H.264 or H.265 through command line

Bug fixes:

Logging improvements
Added checks for empty credentials to ensure we do not start the state machine unless valid credentials are set
Fixed user agent string to be SDK and version specific

Version bumps:

Platforms tested on:

Release tagged at: 99c1a8c

What’s new:

Added ability to create authentication callbacks based on existing credentials
Added logic to prevent unnecessary calls to curl_easy_pause to pause connection by blocking thread which waits for new data, with exponential back off, for ~600ms. curl_easy_pause incurs a 1s or more penalty on unpause so we avoid this now which in most cases results in a significant decrease in end-to-end latency.

Added public API kinesisVideoStreamSetNalAdaptationFlags to set NALU adaptation flags prior to starting the stream
Added elementaryFrameRate to client metrics to provide consumers an accurate frame rate
Fixed a bug which impacted a scenario where IoT Credentials fail to refresh due to bad network and the state machine would get stuck and unable to self recover.

Known Issues:

We call curl_easy_pause from a non curl thread which is not defined behavior. Alternative is to use a curl provided callback but this incurs an unacceptable amount of latency. The solution is to move to the curl MULTI interface.

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