1/*
2 * Copyright (C) 2018 Igalia S.L.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following
12 * disclaimer in the documentation and/or other materials provided
13 * with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#include "config.h"
29#include "MediaEngineConfigurationFactory.h"
30
31#include "MediaCapabilitiesDecodingInfo.h"
32#include "MediaCapabilitiesEncodingInfo.h"
33#include "MediaDecodingConfiguration.h"
34#include "MediaEncodingConfiguration.h"
35#include "MediaEngineConfigurationFactoryMock.h"
36#include <wtf/NeverDestroyed.h>
37#include <wtf/Vector.h>
38
39#if PLATFORM(COCOA)
40#include "MediaEngineConfigurationFactoryCocoa.h"
41#endif
42
43#if USE(GSTREAMER)
44#include "MediaEngineConfigurationFactoryGStreamer.h"
45#endif
46
47namespace WebCore {
48
49static bool& mockEnabled()
50{
51 static bool enabled;
52 return enabled;
53}
54
55struct MediaEngineFactory {
56 void(*createDecodingConfiguration)(MediaDecodingConfiguration&&, MediaEngineConfigurationFactory::DecodingConfigurationCallback&&);
57 void(*createEncodingConfiguration)(MediaEncodingConfiguration&&, MediaEngineConfigurationFactory::EncodingConfigurationCallback&&);
58};
59
60using FactoryVector = Vector<MediaEngineFactory>;
61static const FactoryVector& factories()
62{
63 static NeverDestroyed<FactoryVector> factories = makeNeverDestroyed(FactoryVector({
64#if PLATFORM(COCOA)
65 { &createMediaPlayerDecodingConfigurationCocoa, nullptr },
66#endif
67#if USE(GSTREAMER)
68 { &createMediaPlayerDecodingConfigurationGStreamer, nullptr },
69#endif
70 }));
71 return factories;
72}
73
74void MediaEngineConfigurationFactory::createDecodingConfiguration(MediaDecodingConfiguration&& config, MediaEngineConfigurationFactory::DecodingConfigurationCallback&& callback)
75{
76 if (mockEnabled()) {
77 MediaEngineConfigurationFactoryMock::createDecodingConfiguration(WTFMove(config), WTFMove(callback));
78 return;
79 }
80
81 auto factoryCallback = [] (auto factoryCallback, auto nextFactory, auto&& config, auto&& callback) mutable {
82 if (nextFactory == factories().end()) {
83 callback({{ }, WTFMove(config)});
84 return;
85 }
86
87 auto& factory = *nextFactory;
88 if (!factory.createDecodingConfiguration) {
89 callback({{ }, WTFMove(config)});
90 return;
91 }
92
93 factory.createDecodingConfiguration(WTFMove(config), [factoryCallback, nextFactory, config, callback = WTFMove(callback)] (auto&& info) mutable {
94 if (info.supported) {
95 callback(WTFMove(info));
96 return;
97 }
98
99 factoryCallback(factoryCallback, ++nextFactory, WTFMove(info.supportedConfiguration), WTFMove(callback));
100 });
101 };
102 factoryCallback(factoryCallback, factories().begin(), config, WTFMove(callback));
103}
104
105void MediaEngineConfigurationFactory::createEncodingConfiguration(MediaEncodingConfiguration&& config, MediaEngineConfigurationFactory::EncodingConfigurationCallback&& callback)
106{
107 if (mockEnabled()) {
108 MediaEngineConfigurationFactoryMock::createEncodingConfiguration(WTFMove(config), WTFMove(callback));
109 return;
110 }
111
112 auto factoryCallback = [] (auto factoryCallback, auto nextFactory, auto&& config, auto&& callback) mutable {
113 if (nextFactory == factories().end()) {
114 callback({ });
115 return;
116 }
117
118 auto& factory = *nextFactory;
119 if (!factory.createEncodingConfiguration) {
120 callback({ });
121 return;
122 }
123
124 factory.createEncodingConfiguration(WTFMove(config), [factoryCallback, nextFactory, callback = WTFMove(callback)] (auto&& info) mutable {
125 if (info.supported) {
126 callback(WTFMove(info));
127 return;
128 }
129
130 factoryCallback(factoryCallback, ++nextFactory, WTFMove(info.supportedConfiguration), WTFMove(callback));
131 });
132 };
133 factoryCallback(factoryCallback, factories().begin(), WTFMove(config), WTFMove(callback));
134}
135
136void MediaEngineConfigurationFactory::enableMock()
137{
138 mockEnabled() = true;
139}
140
141void MediaEngineConfigurationFactory::disableMock()
142{
143 mockEnabled() = false;
144}
145
146}
147