components/mirroring/mojom/session_observer.mojom

// Copyright 2018 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

module mirroring.mojom;

// Errors occurred in a mirroring session.
enum SessionError {
  ANSWER_TIME_OUT,                // ANSWER timeout.
  ANSWER_NOT_OK,                  // Not OK answer response.
  ANSWER_MISMATCHED_CAST_MODE,    // ANSWER cast mode mismatched.
  ANSWER_MISMATCHED_SSRC_LENGTH,  // ANSWER ssrc length mismatched with indexes.
  ANSWER_SELECT_MULTIPLE_AUDIO,   // Multiple audio streams selected by ANSWER.
  ANSWER_SELECT_MULTIPLE_VIDEO,   // Multiple video streams selected by ANSWER.
  ANSWER_SELECT_INVALID_INDEX,    // Invalid index was selected.
  ANSWER_NO_AUDIO_OR_VIDEO,       // ANSWER not select audio or video.
  AUDIO_CAPTURE_ERROR,            // Error occurred in audio capturing.
  VIDEO_CAPTURE_ERROR,            // Error occurred in video capturing.
  RTP_STREAM_ERROR,               // Error reported by RtpStream.
  ENCODING_ERROR,                 // Error occurred in encoding.
  CAST_TRANSPORT_ERROR,           // Error occurred in cast transport.
};

// Observer interface for receiving notifications about significant lifecycle
// events.
interface SessionObserver {
  // Called when error occurred. The session will be stopped.
  OnError(SessionError error);

  // Called when session completes starting.
  DidStart();

  // Called when the session stops.
  DidStop();
};