Capabilities

Supported MIME Types

Get supported properties

This is not something that a user of rialto-gstreamer needs to be concerned about (it is done automatically). This API is to query if a specified set of properties are supported on the RialtoServer. This enables RialtoGstreamer to determine the set of properties to present, and support, for the user of rialto-gstreamer. This will happen upon creation of a pipeline (when a sink is created).

Output Control

Set Video Window Size & Position

API for setting the position and size of the video output window for a pipeline session.

Quality of Service

The notifyQos() callback is used to notify clients of dropped audio/video data in the server side pipeline.

Volume

API for setting and getting the volume for a pipeline session.

Stats

API for obtaining the number of "rendered frames" and "dropped frames"

GstStructure *stats{nullptr};
g_object_get(sink, "stats", &stats, nullptr);
if (stats)
{
    guint64 renderedVideoFrames;
    guint64 droppedVideoFrames;
    if (gst_structure_get_uint64(stats, "rendered", &renderedVideoFrames) &&
        gst_structure_get_uint64(stats, "dropped", &droppedVideoFrames))
    {
        std::cout << "renderedVideoFrames " << renderedVideoFrames << std::endl;
        std::cout << "droppedVideoFrames " << droppedVideoFrames << std::endl;
    }
    gst_structure_free(stats);
}

Immediate Output

API for setting and getting the "immediate-output" property (used for low-latency output)

gboolean immediateOutput;
# NOTE: The "immediate-output" property will only be available if it's supported by the hardware
g_object_get(videoSink, "immediate-output", &immediateOutput, nullptr);
if (immediateOutput) ...

gboolean immediateOutput{TRUE}; // The desired setting
# NOTE: The "immediate-output" property will only be available if it's supported by the hardware
g_object_set(videoSink, "immediate-output", immediateOutput, nullptr);

Mute

API for setting and getting the mute setting for a pipeline session.

Process Audio Gap

API for processing audio gap for a pipeline session. Functionality used to avoid audio pops during transitions.