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
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
/*
* Copyright (C) 2018 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#if ENABLE(MEDIA_STREAM)
#include "ImageBuffer.h"
#include "RealtimeMediaSource.h"
#include <wtf/Lock.h>
#include <wtf/RunLoop.h>
namespace WebCore {
struct FrameRateRange {
double minimum;
double maximum;
template<class Encoder> void encode(Encoder&) const;
template<class Decoder> static std::optional<FrameRateRange> decode(Decoder&);
};
template<class Encoder>
void FrameRateRange::encode(Encoder& encoder) const
{
encoder << minimum;
encoder << maximum;
}
template <class Decoder>
std::optional<FrameRateRange> FrameRateRange::decode(Decoder& decoder)
{
std::optional<double> minimum;
decoder >> minimum;
if (!minimum)
return std::nullopt;
std::optional<double> maximum;
decoder >> maximum;
if (!maximum)
return std::nullopt;
return FrameRateRange { *minimum, *maximum };
}
struct VideoPresetData {
IntSize size;
Vector<FrameRateRange> frameRateRanges;
template<class Encoder> void encode(Encoder&) const;
template<class Decoder> static std::optional<VideoPresetData> decode(Decoder&);
};
template<class Encoder>
void VideoPresetData::encode(Encoder& encoder) const
{
encoder << size;
encoder << frameRateRanges;
}
template <class Decoder>
std::optional<VideoPresetData> VideoPresetData::decode(Decoder& decoder)
{
std::optional<IntSize> size;
decoder >> size;
if (!size)
return std::nullopt;
std::optional<Vector<FrameRateRange>> frameRateRanges;
decoder >> frameRateRanges;
if (!frameRateRanges)
return std::nullopt;
return VideoPresetData { *size, *frameRateRanges };
}
class VideoPreset : public RefCounted<VideoPreset> {
public:
static Ref<VideoPreset> create(VideoPresetData&& data)
{
return adoptRef(*new VideoPreset(data.size, WTFMove(data.frameRateRanges), Base));
}
enum VideoPresetType {
Base,
AVCapture,
GStreamer
};
IntSize size;
Vector<FrameRateRange> frameRateRanges;
VideoPresetType type;
double maxFrameRate() const;
double minFrameRate() const;
void log()const;
protected:
VideoPreset(IntSize size, Vector<FrameRateRange>&& frameRateRanges, VideoPresetType type)
: size(size)
, frameRateRanges(WTFMove(frameRateRanges))
, type(type)
{
}
};
inline void VideoPreset::log() const
{
WTFLogAlways("VideoPreset of size (%d,%d) and type %d", size.width(), size.height(), type);
for (auto range : frameRateRanges)
WTFLogAlways("VideoPreset frame rate range [%f, %f]", range.minimum, range.maximum);
}
inline double VideoPreset::minFrameRate() const
{
double minFrameRate = std::numeric_limits<double>::max();
for (auto& range : frameRateRanges) {
if (minFrameRate > range.minimum)
minFrameRate = range.minimum;
}
return minFrameRate;
}
inline double VideoPreset::maxFrameRate() const
{
double maxFrameRate = 0;
for (auto& range : frameRateRanges) {
if (maxFrameRate < range.maximum)
maxFrameRate = range.maximum;
}
return maxFrameRate;
}
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::VideoPreset)
static bool isType(const WebCore::VideoPreset& preset) { return preset.type == WebCore::VideoPreset::VideoPresetType::Base; }
SPECIALIZE_TYPE_TRAITS_END()
#endif // ENABLE(MEDIA_STREAM)
|
