1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef SEEK_TARGET_H
#define SEEK_TARGET_H
#include "TimeUnits.h"
namespace mozilla {
enum class MediaDecoderEventVisibility : int8_t {
Observable,
Suppressed
};
// Stores the seek target; the time to seek to, and whether an Accurate,
// "Fast" (nearest keyframe), or "Video Only" (no audio seek) seek was
// requested.
struct SeekTarget {
enum Type {
Invalid,
PrevSyncPoint,
Accurate,
NextFrame,
};
SeekTarget()
: mTime(media::TimeUnit::Invalid())
, mType(SeekTarget::Invalid)
, mVideoOnly(false)
{
}
SeekTarget(int64_t aTimeUsecs,
Type aType,
bool aVideoOnly = false)
: mTime(media::TimeUnit::FromMicroseconds(aTimeUsecs))
, mType(aType)
, mVideoOnly(aVideoOnly)
{
}
SeekTarget(const media::TimeUnit& aTime,
Type aType,
bool aVideoOnly = false)
: mTime(aTime)
, mType(aType)
, mVideoOnly(aVideoOnly)
{
}
SeekTarget(const SeekTarget& aOther)
: mTime(aOther.mTime)
, mType(aOther.mType)
, mVideoOnly(aOther.mVideoOnly)
{
}
bool IsValid() const {
return mType != SeekTarget::Invalid;
}
void Reset() {
mTime = media::TimeUnit::Invalid();
mType = SeekTarget::Invalid;
mVideoOnly = false;
}
media::TimeUnit GetTime() const {
NS_ASSERTION(mTime.IsValid(), "Invalid SeekTarget");
return mTime;
}
void SetTime(const media::TimeUnit& aTime) {
NS_ASSERTION(aTime.IsValid(), "Invalid SeekTarget destination");
mTime = aTime;
}
void SetType(Type aType) {
mType = aType;
}
void SetVideoOnly(bool aVideoOnly) {
mVideoOnly = aVideoOnly;
}
bool IsFast() const {
return mType == SeekTarget::Type::PrevSyncPoint;
}
bool IsAccurate() const {
return mType == SeekTarget::Type::Accurate;
}
bool IsNextFrame() const {
return mType == SeekTarget::Type::NextFrame;
}
bool IsVideoOnly() const {
return mVideoOnly;
}
private:
// Seek target time.
media::TimeUnit mTime;
// Whether we should seek "Fast", or "Accurate".
// "Fast" seeks to the seek point preceding mTime, whereas
// "Accurate" seeks as close as possible to mTime.
Type mType;
bool mVideoOnly;
};
} // namespace mozilla
#endif /* SEEK_TARGET_H */
|
