View Source Membrane.RTC.Engine.Support.StaticTrackSender (Membrane RTC Engine v0.23.0)

This is a very simple version of Membrane.RTC.Engine.Endpoint.WebRTC.TrackSender element.

Engine forwards track starting from a keyframe. Therefore, whenever some endpoint requests some track, engine sends keyframe request to the track source.

In case of publishing from a file we are not able to generate keyframe on request. Depending on the value of the option wait_for_keyframe_request? this element will ignore incoming demands and start sending data after receiving first keyframe request or start sending data without waiting for keyframe request. In both cases subsequent keyframe requests are ignored.

Element options

Passed via struct Membrane.RTC.Engine.Support.StaticTrackSender.t/0

track
```
Membrane.RTC.Engine.Track.t()
```
Required
Track this sender will maintain
is_keyframe
```
(Membrane.Buffer.t(), Track.t() -> boolean())
```
Required
Function informing if buffer is a keyframe for this track
wait_for_keyframe_request?
```
boolean()
```
Default value: false
Flag that determines if TrackSender should wait with publishing stream until it receives Membrane.KeyframeRequestEvent

Pads

`:input`

Accepted formats:

Membrane.RTP

Direction:	`:input`
Availability:	`:always`
Flow control:	`:manual`
Demand unit:	`:buffers`

`:output`

Accepted formats:

Membrane.RTP

Direction:	`:output`
Availability:	`:always`
Flow control:	`:manual`
Demand unit:	`nil`

Summary

Types

t()

Struct containing options for Membrane.RTC.Engine.Support.StaticTrackSender

Functions

options()

Returns description of options available for this module

Types

t()

@type t() :: %Membrane.RTC.Engine.Support.StaticTrackSender{
  is_keyframe: (Membrane.Buffer.t(), Membrane.RTC.Engine.Track.t() -> boolean()),
  track: Membrane.RTC.Engine.Track.t(),
  wait_for_keyframe_request?: boolean()
}

Struct containing options for Membrane.RTC.Engine.Support.StaticTrackSender

Functions

options()

@spec options() :: keyword()

Returns description of options available for this module