| /* |
| * Copyright (C) 2020 Apple Inc. |
| * |
| * 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. AND ITS CONTRIBUTORS ``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 ITS 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(WEB_RTC) && USE(LIBWEBRTC) |
| |
| #include "LibWebRTCMacros.h" |
| #include "RTCRtpTransformBackend.h" |
| #include <webrtc/api/scoped_refptr.h> |
| #include <wtf/Lock.h> |
| |
| ALLOW_UNUSED_PARAMETERS_BEGIN |
| ALLOW_DEPRECATED_DECLARATIONS_BEGIN |
| |
| #include <webrtc/api/frame_transformer_interface.h> |
| |
| ALLOW_DEPRECATED_DECLARATIONS_END |
| ALLOW_UNUSED_PARAMETERS_END |
| |
| namespace WebCore { |
| |
| class LibWebRTCRtpTransformBackend : public RTCRtpTransformBackend, public webrtc::FrameTransformerInterface { |
| protected: |
| LibWebRTCRtpTransformBackend(MediaType, Side); |
| void setInputCallback(Callback&&); |
| |
| protected: |
| MediaType mediaType() const final { return m_mediaType; } |
| |
| private: |
| void setOutputCallback(rtc::scoped_refptr<webrtc::TransformedFrameCallback>&&); |
| |
| // RTCRtpTransformBackend |
| void processTransformedFrame(RTCRtpTransformableFrame&) final; |
| void clearTransformableFrameCallback() final; |
| Side side() const final { return m_side; } |
| |
| // webrtc::FrameTransformerInterface |
| void Transform(std::unique_ptr<webrtc::TransformableFrameInterface>) final; |
| void RegisterTransformedFrameCallback(rtc::scoped_refptr<webrtc::TransformedFrameCallback>) final; |
| void RegisterTransformedFrameSinkCallback(rtc::scoped_refptr<webrtc::TransformedFrameCallback>, uint32_t ssrc) final; |
| void UnregisterTransformedFrameCallback() final; |
| void UnregisterTransformedFrameSinkCallback(uint32_t ssrc) final; |
| void AddRef() const final { ref(); } |
| rtc::RefCountReleaseStatus Release() const final; |
| |
| MediaType m_mediaType; |
| Side m_side; |
| |
| Lock m_inputCallbackLock; |
| Callback m_inputCallback WTF_GUARDED_BY_LOCK(m_inputCallbackLock); |
| |
| Lock m_outputCallbackLock; |
| rtc::scoped_refptr<webrtc::TransformedFrameCallback> m_outputCallback WTF_GUARDED_BY_LOCK(m_outputCallbackLock); |
| }; |
| |
| inline LibWebRTCRtpTransformBackend::LibWebRTCRtpTransformBackend(MediaType mediaType, Side side) |
| : m_mediaType(mediaType) |
| , m_side(side) |
| { |
| } |
| |
| inline rtc::RefCountReleaseStatus LibWebRTCRtpTransformBackend::Release() const |
| { |
| deref(); |
| return rtc::RefCountReleaseStatus::kOtherRefsRemained; |
| } |
| |
| } // namespace WebCore |
| |
| #endif // ENABLE(WEB_RTC) && USE(LIBWEBRTC) |