/src/mozilla-central/dom/media/TrackID.h
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1 | | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
2 | | /* This Source Code Form is subject to the terms of the Mozilla Public |
3 | | * License, v. 2.0. If a copy of the MPL was not distributed with this file, |
4 | | * You can obtain one at http://mozilla.org/MPL/2.0/. */ |
5 | | |
6 | | #ifndef MOZILLA_TRACK_ID_H_ |
7 | | #define MOZILLA_TRACK_ID_H_ |
8 | | |
9 | | namespace mozilla { |
10 | | |
11 | | /** |
12 | | * Unique ID for track within a StreamTracks. Tracks from different |
13 | | * StreamTrackss may have the same ID; this matters when appending StreamTrackss, |
14 | | * since tracks with the same ID are matched. Only IDs greater than 0 are allowed. |
15 | | */ |
16 | | typedef int32_t TrackID; |
17 | | const TrackID TRACK_NONE = 0; |
18 | | const TrackID TRACK_INVALID = -1; |
19 | | const TrackID TRACK_ANY = -2; |
20 | | |
21 | 0 | inline bool IsTrackIDExplicit(const TrackID& aId) { |
22 | 0 | return aId > TRACK_NONE; |
23 | 0 | } |
24 | | |
25 | | } // namespace mozilla |
26 | | |
27 | | #endif // MOZILLA_TRACK_ID_H_ |