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// Copyright 2017 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.
#ifndef MEDIA_REMOTING_TRIGGERS_H_
#define MEDIA_REMOTING_TRIGGERS_H_
namespace media {
namespace remoting {
// Events and conditions that can trigger remoting to start.
//
// NOTE: Never re-number or re-use numbers for different triggers. These are
// used in UMA histograms, and must remain backwards-compatible for all time.
// However, *do* change START_TRIGGER_MAX to one after the greatest value when
// adding new ones. Also, don't forget to update histograms.xml!
enum StartTrigger {
UNKNOWN_START_TRIGGER = 0,
// Local presentation changes.
ENTERED_FULLSCREEN = 1, // The media element became the fullscreen element.
BECAME_DOMINANT_CONTENT = 2, // Element now occupies most of the viewport.
ENABLED_BY_PAGE = 3, // The page re-allowed remote playback.
// User actions, such as connecting to a receiver or pressing play.
SINK_AVAILABLE = 4, // A receiver (sink) became available.
PLAY_COMMAND = 5, // The media element was issued a play command.
// Met requirements for playback of the media.
SUPPORTED_AUDIO_CODEC = 6, // Stream began using a supported audio codec.
SUPPORTED_VIDEO_CODEC = 7, // Stream began using a supported video codec.
SUPPORTED_AUDIO_AND_VIDEO_CODECS = 8, // Both now using a supported codec.
CDM_READY = 9, // The CDM required for decrypting the content became ready.
// Change this to the highest value.
START_TRIGGER_MAX = 9,
};
// Events and conditions that can result in a start failure, or trigger remoting
// to stop.
//
// NOTE: Never re-number or re-use numbers for different triggers. These are
// used in UMA histograms, and must remain backwards-compatible for all time.
// However, *do* change STOP_TRIGGER_MAX to one after the greatest value when
// adding new ones. Also, don't forget to update histograms.xml!
enum StopTrigger {
UNKNOWN_STOP_TRIGGER = 0,
// Normal shutdown triggers.
ROUTE_TERMINATED = 1, // The route to the sink was terminated (user action?).
MEDIA_ELEMENT_DESTROYED = 2, // The media element on the page was destroyed.
EXITED_FULLSCREEN = 3, // The media element is no longer fullscreened.
BECAME_AUXILIARY_CONTENT = 4, // Element no longer occupies the viewport.
DISABLED_BY_PAGE = 5, // The web page blocked remoting during a session.
// Content playback related errors forcing shutdown (or failing start).
START_RACE = 6, // Multiple remoting sessions attempted to start.
UNSUPPORTED_AUDIO_CODEC = 7, // Stream now using an unsupported audio codec.
UNSUPPORTED_VIDEO_CODEC = 8, // Stream now using an unsupported video codec.
UNSUPPORTED_AUDIO_AND_VIDEO_CODECS = 9, // Neither codec is supported.
DECRYPTION_ERROR = 10, // Could not decrypt content or CDM was destroyed.
RECEIVER_INITIALIZE_FAILED = 11, // The receiver reported a failed init.
RECEIVER_PIPELINE_ERROR = 12, // The media pipeline on the receiver error'ed.
// Environmental errors forcing shutdown.
FRAME_DROP_RATE_HIGH = 13, // The receiver was dropping too many frames.
PACING_TOO_SLOWLY = 14, // Play-out was too slow, indicating bottlenecks.
// Communications errors forcing shutdown.
PEERS_OUT_OF_SYNC = 15, // The local state disagrees with the remote.
RPC_INVALID = 16, // An RPC field value is missing or has bad data.
DATA_PIPE_CREATE_ERROR = 17, // Mojo data pipe creation failed (OOM?).
MOJO_PIPE_ERROR = 18, // Mojo message/data pipe operation failed.
// Change this to the highest value.
STOP_TRIGGER_MAX = 18,
};
} // namespace remoting
} // namespace media
#endif // MEDIA_REMOTING_TRIGGERS_H_
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