MediaEngineConfigurationFactory.cpp [plain text]
#include "config.h"
#include "MediaEngineConfigurationFactory.h"
#include "MediaCapabilitiesDecodingInfo.h"
#include "MediaCapabilitiesEncodingInfo.h"
#include "MediaDecodingConfiguration.h"
#include "MediaEncodingConfiguration.h"
#include "MediaEngineConfigurationFactoryMock.h"
#include <wtf/Algorithms.h>
#include <wtf/NeverDestroyed.h>
#include <wtf/Vector.h>
#if PLATFORM(COCOA)
#include "MediaEngineConfigurationFactoryCocoa.h"
#endif
#if USE(GSTREAMER)
#include "MediaEngineConfigurationFactoryGStreamer.h"
#endif
namespace WebCore {
static bool& mockEnabled()
{
static bool enabled;
return enabled;
}
struct MediaEngineFactory {
void(*createDecodingConfiguration)(MediaDecodingConfiguration&&, MediaEngineConfigurationFactory::DecodingConfigurationCallback&&);
void(*createEncodingConfiguration)(MediaEncodingConfiguration&&, MediaEngineConfigurationFactory::EncodingConfigurationCallback&&);
};
using FactoryVector = Vector<MediaEngineFactory>;
static const FactoryVector& factories()
{
static NeverDestroyed<FactoryVector> factories = makeNeverDestroyed(FactoryVector({
#if PLATFORM(COCOA)
{ &createMediaPlayerDecodingConfigurationCocoa, nullptr },
#endif
#if USE(GSTREAMER)
{ &createMediaPlayerDecodingConfigurationGStreamer, nullptr },
#endif
}));
return factories;
}
bool MediaEngineConfigurationFactory::hasDecodingConfigurationFactory()
{
return mockEnabled() || WTF::anyOf(factories(), [] (auto& factory) { return factory.createDecodingConfiguration; });
}
bool MediaEngineConfigurationFactory::hasEncodingConfigurationFactory()
{
return mockEnabled() || WTF::anyOf(factories(), [] (auto& factory) { return factory.createEncodingConfiguration; });
}
void MediaEngineConfigurationFactory::createDecodingConfiguration(MediaDecodingConfiguration&& config, MediaEngineConfigurationFactory::DecodingConfigurationCallback&& callback)
{
if (mockEnabled()) {
MediaEngineConfigurationFactoryMock::createDecodingConfiguration(WTFMove(config), WTFMove(callback));
return;
}
auto factoryCallback = [] (auto factoryCallback, auto nextFactory, auto&& config, auto&& callback) mutable {
if (nextFactory == factories().end()) {
callback({{ }, WTFMove(config)});
return;
}
auto& factory = *nextFactory;
if (!factory.createDecodingConfiguration) {
callback({{ }, WTFMove(config)});
return;
}
factory.createDecodingConfiguration(WTFMove(config), [factoryCallback, nextFactory, config, callback = WTFMove(callback)] (auto&& info) mutable {
if (info.supported) {
callback(WTFMove(info));
return;
}
factoryCallback(factoryCallback, ++nextFactory, WTFMove(info.supportedConfiguration), WTFMove(callback));
});
};
factoryCallback(factoryCallback, factories().begin(), config, WTFMove(callback));
}
void MediaEngineConfigurationFactory::createEncodingConfiguration(MediaEncodingConfiguration&& config, MediaEngineConfigurationFactory::EncodingConfigurationCallback&& callback)
{
if (mockEnabled()) {
MediaEngineConfigurationFactoryMock::createEncodingConfiguration(WTFMove(config), WTFMove(callback));
return;
}
auto factoryCallback = [] (auto factoryCallback, auto nextFactory, auto&& config, auto&& callback) mutable {
if (nextFactory == factories().end()) {
callback({ });
return;
}
auto& factory = *nextFactory;
if (!factory.createEncodingConfiguration) {
callback({ });
return;
}
factory.createEncodingConfiguration(WTFMove(config), [factoryCallback, nextFactory, callback = WTFMove(callback)] (auto&& info) mutable {
if (info.supported) {
callback(WTFMove(info));
return;
}
factoryCallback(factoryCallback, ++nextFactory, WTFMove(info.supportedConfiguration), WTFMove(callback));
});
};
factoryCallback(factoryCallback, factories().begin(), WTFMove(config), WTFMove(callback));
}
void MediaEngineConfigurationFactory::enableMock()
{
mockEnabled() = true;
}
void MediaEngineConfigurationFactory::disableMock()
{
mockEnabled() = false;
}
}