ConnectStreamPlaybackUtil¶

class kanzi::connect::ConnectStreamPlaybackUtil : public StreamPlaybackUtil ¶

Subclassed by StreamPlaybackUtil_openh264

Unnamed Group

unsigned int getWidth() override¶

See: kanzi::connect::StreamPlaybackUtil

unsigned int getHeight() override¶

Gets height of video frame.

Return: Height of video frame.

void onRendering() override¶: notify frame consumed

Public Functions

~ConnectStreamPlaybackUtil() override¶: Destructor.

const string &getAuxData() const¶: Get the optional data from encoder or stream provider.

void startDecoderThread()¶: Perform decoding on a dedicated thread. Deriving class should call this function after it has initialized the infra for decoding.

void stopDecoderThread()¶: Perform decoding on main thread. Releases Decoder thread if it exists.

Public Static Functions

shared_ptr<ConnectStreamPlaybackUtil> create(Domain &domain, const string &streamId, FrameReceiverSharedPtr host)¶

Create new stream playback util.

By default the class is using either zlib or zstd compression engine for decoding frames.

Return

New playback util on success, otherwise empty pointer.

Parameters

domain: Kanzi::Domain that is used for obtaining Connect server connection
streamId: Identifier of the stream to listen.
onProcessSampleTask: Callback to Kanzi to invalidate and re-render node hosting the playback util
bufferFactory: Instance of framebuffer provider to be used.

class FpsCounter¶

A helper class that can be used to measure events per second.

When an instance of this class is created, the time measurement is automatically started. To count event and to count per second average call countUp().

Public Functions

FpsCounter()¶: Constructor. Implicitly calls start() method.

void countUp()¶: Counts frames and calculates average fps.

int getFps()¶: Get current average frames per second number.

bool haveNewValue() const¶

void restart()¶: Starts to track the time. Can be used to restart the time measurement.