152 lines
5.0 KiB
C++
152 lines
5.0 KiB
C++
/*
|
|
* Copyright (C) 2020 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.
|
|
*/
|
|
|
|
#include "config.h"
|
|
#include "RTCRtpTransform.h"
|
|
|
|
#if ENABLE(WEB_RTC)
|
|
|
|
#include "RTCRtpReceiver.h"
|
|
#include "RTCRtpSender.h"
|
|
|
|
namespace WebCore {
|
|
|
|
std::unique_ptr<RTCRtpTransform> RTCRtpTransform::from(std::optional<Internal>&& internal)
|
|
{
|
|
if (!internal)
|
|
return nullptr;
|
|
return makeUnique<RTCRtpTransform>(WTFMove(*internal));
|
|
}
|
|
|
|
RTCRtpTransform::RTCRtpTransform(Internal&& transform)
|
|
: m_transform(WTFMove(transform))
|
|
{
|
|
}
|
|
|
|
RTCRtpTransform::~RTCRtpTransform()
|
|
{
|
|
clearBackend();
|
|
}
|
|
|
|
bool RTCRtpTransform::isAttached() const
|
|
{
|
|
return switchOn(m_transform, [&](const RefPtr<RTCRtpSFrameTransform>& sframeTransform) {
|
|
return sframeTransform->isAttached();
|
|
}, [&](const RefPtr<RTCRtpScriptTransform>& scriptTransform) {
|
|
return scriptTransform->isAttached();
|
|
});
|
|
}
|
|
|
|
void RTCRtpTransform::attachToReceiver(RTCRtpReceiver& receiver, RTCRtpTransform* previousTransform)
|
|
{
|
|
ASSERT(!isAttached());
|
|
|
|
if (previousTransform)
|
|
m_backend = previousTransform->takeBackend();
|
|
else if (auto* backend = receiver.backend())
|
|
m_backend = backend->rtcRtpTransformBackend();
|
|
else
|
|
return;
|
|
|
|
switchOn(m_transform, [&](RefPtr<RTCRtpSFrameTransform>& sframeTransform) {
|
|
sframeTransform->initializeBackendForReceiver(*m_backend);
|
|
}, [&](RefPtr<RTCRtpScriptTransform>& scriptTransform) {
|
|
scriptTransform->initializeBackendForReceiver(*m_backend);
|
|
});
|
|
}
|
|
|
|
void RTCRtpTransform::attachToSender(RTCRtpSender& sender, RTCRtpTransform* previousTransform)
|
|
{
|
|
ASSERT(!isAttached());
|
|
|
|
if (previousTransform)
|
|
m_backend = previousTransform->takeBackend();
|
|
else if (auto* backend = sender.backend())
|
|
m_backend = backend->rtcRtpTransformBackend();
|
|
else
|
|
return;
|
|
|
|
switchOn(m_transform, [&](RefPtr<RTCRtpSFrameTransform>& sframeTransform) {
|
|
sframeTransform->initializeBackendForSender(*m_backend);
|
|
}, [&](RefPtr<RTCRtpScriptTransform>& scriptTransform) {
|
|
scriptTransform->initializeBackendForSender(*m_backend);
|
|
if (previousTransform)
|
|
previousTransform->backendTransferedToNewTransform();
|
|
});
|
|
}
|
|
|
|
void RTCRtpTransform::backendTransferedToNewTransform()
|
|
{
|
|
switchOn(m_transform, [&](RefPtr<RTCRtpSFrameTransform>&) {
|
|
}, [&](RefPtr<RTCRtpScriptTransform>& scriptTransform) {
|
|
scriptTransform->backendTransferedToNewTransform();
|
|
});
|
|
}
|
|
|
|
void RTCRtpTransform::clearBackend()
|
|
{
|
|
if (!m_backend)
|
|
return;
|
|
|
|
switchOn(m_transform, [&](RefPtr<RTCRtpSFrameTransform>& sframeTransform) {
|
|
sframeTransform->willClearBackend(*m_backend);
|
|
}, [&](RefPtr<RTCRtpScriptTransform>& scriptTransform) {
|
|
scriptTransform->willClearBackend(*m_backend);
|
|
});
|
|
|
|
m_backend = nullptr;
|
|
}
|
|
|
|
void RTCRtpTransform::detachFromReceiver(RTCRtpReceiver&)
|
|
{
|
|
clearBackend();
|
|
}
|
|
|
|
void RTCRtpTransform::detachFromSender(RTCRtpSender&)
|
|
{
|
|
clearBackend();
|
|
}
|
|
|
|
bool operator==(const RTCRtpTransform& a, const RTCRtpTransform& b)
|
|
{
|
|
return switchOn(a.m_transform, [&](const RefPtr<RTCRtpSFrameTransform>& sframeTransformA) {
|
|
return switchOn(b.m_transform, [&](const RefPtr<RTCRtpSFrameTransform>& sframeTransformB) {
|
|
return sframeTransformA.get() == sframeTransformB.get();
|
|
}, [&](const RefPtr<RTCRtpScriptTransform>&) {
|
|
return false;
|
|
});
|
|
}, [&](const RefPtr<RTCRtpScriptTransform>& scriptTransformA) {
|
|
return switchOn(b.m_transform, [&](const RefPtr<RTCRtpSFrameTransform>&) {
|
|
return false;
|
|
}, [&](const RefPtr<RTCRtpScriptTransform>& scriptTransformB) {
|
|
return scriptTransformA.get() == scriptTransformB.get();
|
|
});
|
|
});
|
|
}
|
|
|
|
} // namespace WebCore
|
|
|
|
#endif // ENABLE(WEB_RTC)
|