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WebKitDecoder.h
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WebKitDecoder.h
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/*
* Copyright (C) 2020-2021 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. 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
#include <Availability.h>
#include <TargetConditionals.h>
#include "WebKitUtilities.h"
#include "api/video/encoded_image.h"
#include "api/video_codecs/video_decoder_factory.h"
#include "rtc_base/ref_counted_object.h"
typedef struct __CVBuffer* CVPixelBufferRef;
namespace webrtc {
#if (TARGET_OS_OSX || TARGET_OS_MACCATALYST) && TARGET_CPU_X86_64
#define CMBASE_OBJECT_NEEDS_ALIGNMENT 1
#else
#define CMBASE_OBJECT_NEEDS_ALIGNMENT 0
#endif
struct SdpVideoFormat;
class VideoDecoderFactory;
struct WebKitVideoDecoder {
using Value = void*;
Value value { nullptr };
bool isWebRTCVideoDecoder { false };
};
using VideoDecoderCreateCallback = WebKitVideoDecoder(*)(const SdpVideoFormat& format);
using VideoDecoderReleaseCallback = int32_t(*)(WebKitVideoDecoder::Value);
using VideoDecoderDecodeCallback = int32_t(*)(WebKitVideoDecoder::Value, uint32_t timeStamp, const uint8_t*, size_t length, uint16_t width, uint16_t height);
using VideoDecoderRegisterDecodeCompleteCallback = int32_t(*)(WebKitVideoDecoder::Value, void* decodedImageCallback);
void setVideoDecoderCallbacks(VideoDecoderCreateCallback, VideoDecoderReleaseCallback, VideoDecoderDecodeCallback, VideoDecoderRegisterDecodeCompleteCallback);
std::unique_ptr<webrtc::VideoDecoderFactory> createWebKitDecoderFactory(WebKitH265, WebKitVP9, WebKitVP9VTB, WebKitAv1);
void videoDecoderTaskComplete(void* callback, uint32_t timeStamp, uint32_t timeStampRTP, CVPixelBufferRef);
void videoDecoderTaskComplete(void* callback, uint32_t timeStamp, uint32_t timeStampRTP, void*, GetBufferCallback, ReleaseBufferCallback, int width, int height);
using LocalDecoder = void*;
using LocalDecoderCallback = void (^)(CVPixelBufferRef, int64_t timeStamp, int64_t timeStampNs);
void* createLocalH264Decoder(LocalDecoderCallback);
void* createLocalH265Decoder(LocalDecoderCallback);
void* createLocalVP9Decoder(LocalDecoderCallback);
void releaseLocalDecoder(LocalDecoder);
void flushLocalDecoder(LocalDecoder);
int32_t setDecodingFormat(LocalDecoder, const uint8_t*, size_t, uint16_t width, uint16_t height);
int32_t decodeFrame(LocalDecoder, int64_t timeStamp, const uint8_t*, size_t);
void setDecoderFrameSize(LocalDecoder, uint16_t width, uint16_t height);
class WebKitEncodedImageBufferWrapper : public EncodedImageBufferInterface {
public:
static rtc::scoped_refptr<WebKitEncodedImageBufferWrapper> create(uint8_t* data, size_t size) { return rtc::make_ref_counted<WebKitEncodedImageBufferWrapper>(data, size); }
WebKitEncodedImageBufferWrapper(uint8_t* data, size_t size)
: m_data(data)
, m_size(size)
{
}
const uint8_t* data() const final { return m_data; }
uint8_t* data() final { return m_data; }
size_t size() const final { return m_size; }
private:
uint8_t* m_data { nullptr };
size_t m_size { 0 };
};
}