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61 lines
2.6 KiB
Plaintext
61 lines
2.6 KiB
Plaintext
// Copyright 2017 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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module media.mojom;
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import "media/mojo/interfaces/remoting_common.mojom";
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// Interface used by the source to start/stop remoting and send data to the
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// sink.
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interface MirrorServiceRemoter {
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// Starts a remoting session. Always assumes the remoting session will be
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// stared successfully. If any failure happens,
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// MirrorServiceRemotingSource::OnError() will be called.
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Start();
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// Starts remoting the media data streams. This is called after Start() to
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// indicate audio/video bitstream data is ready to be consumed. Returns
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// audio/video stream IDs. A valid stream ID should be greater than 0. When
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// there is no audio/video, or if the data stream is not successfully started,
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// the returned stream ID is -1.
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StartDataStreams(bool has_audio, bool has_video)
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=> (int32 audio_stream_id, int32 video_stream_id);
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// Stops remoting media. Messages in both directions will be dropped after
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// this point as well as any pending or in-transit media bitstream data.
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Stop(RemotingStopReason reason);
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// Sends|message| to the sink. |message| is a serialized protobuf from
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// src/media/remoting/proto.
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SendMessageToSink(array<uint8> message);
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// Estimates the transmission capacity. Returns the result in
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// bytes per second.
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EstimateTransmissionCapacity() => (double rate);
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};
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// Interface used for sending notifications back to the source's control logic,
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// and to pass messages from the sink back to the source.
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interface MirrorServiceRemotingSource {
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// Notifies the source that the sink is now available to start remoting and
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// passes the receiver's metadata. It is up to the source's control logic
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// to decide whether/when to start remoting.
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OnSinkAvailable(RemotingSinkMetadata metadata);
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// Passes a |message| from the sink back to the source. The |message| consists
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// of a serialized protobuf from src/media/remoting/proto. This will only be
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// called after OnStarted() and before OnStopped().
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OnMessageFromSink(array<uint8> message);
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// Notifies the source that remoting has terminated. This may or may not be in
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// response to a MirrorServiceRemoter.Stop() call, as other events (possibly
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// external) may have caused remoting to end.
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OnStopped(RemotingStopReason reason);
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// Notifies the source that a fatal error has occurred. Remoting session will
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// be stopped immediately once this is called.
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// TODO(xjz): Add error codes in future to indicate different errors.
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OnError();
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};
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