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/*
* Copyright (C) 2022 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.
*/
#include "config.h"
#include "LibWebRTCVPXVideoDecoder.h"
#if ENABLE(WEB_CODECS) && USE(LIBWEBRTC) && PLATFORM(COCOA)
#include "LibWebRTCDav1dDecoder.h"
#include "Logging.h"
#include "VideoFrameLibWebRTC.h"
#include <wtf/FastMalloc.h>
#include <wtf/NeverDestroyed.h>
#include <wtf/ThreadSafeRefCounted.h>
#include <wtf/WorkQueue.h>
#include <wtf/text/StringConcatenateNumbers.h>
ALLOW_UNUSED_PARAMETERS_BEGIN
ALLOW_COMMA_BEGIN
#include <webrtc/modules/video_coding/codecs/vp8/include/vp8.h>
#include <webrtc/modules/video_coding/codecs/vp9/include/vp9.h>
#include <webrtc/sdk/WebKit/WebKitDecoder.h>
#include <webrtc/system_wrappers/include/cpu_info.h>
ALLOW_COMMA_END
ALLOW_UNUSED_PARAMETERS_END
#include "CoreVideoSoftLink.h"
namespace WebCore {
static WorkQueue& vpxDecoderQueue()
{
static NeverDestroyed<Ref<WorkQueue>> queue(WorkQueue::create("VPx VideoDecoder Queue"));
return queue.get();
}
class LibWebRTCVPXInternalVideoDecoder : public ThreadSafeRefCounted<LibWebRTCVPXInternalVideoDecoder> , public webrtc::DecodedImageCallback {
public:
static Ref<LibWebRTCVPXInternalVideoDecoder> create(LibWebRTCVPXVideoDecoder::Type type, VideoDecoder::OutputCallback&& outputCallback, VideoDecoder::PostTaskCallback&& postTaskCallback) { return adoptRef(*new LibWebRTCVPXInternalVideoDecoder(type, WTFMove(outputCallback), WTFMove(postTaskCallback))); }
~LibWebRTCVPXInternalVideoDecoder() = default;
void postTask(Function<void()>&& task) { m_postTaskCallback(WTFMove(task)); }
void decode(std::span<const uint8_t>, bool isKeyFrame, int64_t timestamp, std::optional<uint64_t> duration, VideoDecoder::DecodeCallback&&);
void close() { m_isClosed = true; }
private:
LibWebRTCVPXInternalVideoDecoder(LibWebRTCVPXVideoDecoder::Type, VideoDecoder::OutputCallback&&, VideoDecoder::PostTaskCallback&&);
int32_t Decoded(webrtc::VideoFrame&) final;
VideoDecoder::OutputCallback m_outputCallback;
VideoDecoder::PostTaskCallback m_postTaskCallback;
UniqueRef<webrtc::VideoDecoder> m_internalDecoder;
int64_t m_timestamp { 0 };
std::optional<uint64_t> m_duration;
bool m_isClosed { false };
};
void LibWebRTCVPXVideoDecoder::create(Type type, CreateCallback&& callback, OutputCallback&& outputCallback, PostTaskCallback&& postTaskCallback)
{
auto decoder = makeUniqueRef<LibWebRTCVPXVideoDecoder>(type, WTFMove(outputCallback), WTFMove(postTaskCallback));
vpxDecoderQueue().dispatch([callback = WTFMove(callback), decoder = WTFMove(decoder)]() mutable {
auto internalDecoder = decoder->m_internalDecoder;
internalDecoder->postTask([callback = WTFMove(callback), decoder = WTFMove(decoder)]() mutable {
callback(UniqueRef<VideoDecoder> { WTFMove(decoder) });
});
});
}
LibWebRTCVPXVideoDecoder::LibWebRTCVPXVideoDecoder(Type type, OutputCallback&& outputCallback, PostTaskCallback&& postTaskCallback)
: m_internalDecoder(LibWebRTCVPXInternalVideoDecoder::create(type, WTFMove(outputCallback), WTFMove(postTaskCallback)))
{
}
LibWebRTCVPXVideoDecoder::~LibWebRTCVPXVideoDecoder()
{
}
void LibWebRTCVPXVideoDecoder::decode(EncodedFrame&& frame, DecodeCallback&& callback)
{
vpxDecoderQueue().dispatch([value = Vector<uint8_t> { frame.data }, isKeyFrame = frame.isKeyFrame, timestamp = frame.timestamp, duration = frame.duration, decoder = m_internalDecoder, callback = WTFMove(callback)]() mutable {
decoder->decode({ value.data(), value.size() }, isKeyFrame, timestamp, duration, WTFMove(callback));
});
}
void LibWebRTCVPXVideoDecoder::flush(Function<void()>&& callback)
{
vpxDecoderQueue().dispatch([decoder = m_internalDecoder, callback = WTFMove(callback)]() mutable {
decoder->postTask(WTFMove(callback));
});
}
void LibWebRTCVPXVideoDecoder::reset()
{
m_internalDecoder->close();
}
void LibWebRTCVPXVideoDecoder::close()
{
m_internalDecoder->close();
}
void LibWebRTCVPXInternalVideoDecoder::decode(std::span<const uint8_t> data, bool isKeyFrame, int64_t timestamp, std::optional<uint64_t> duration, VideoDecoder::DecodeCallback&& callback)
{
m_timestamp = timestamp;
m_duration = duration;
webrtc::EncodedImage image;
image.SetEncodedData(webrtc::WebKitEncodedImageBufferWrapper::create(const_cast<uint8_t*>(data.data()), data.size()));
image._frameType = isKeyFrame ? webrtc::VideoFrameType::kVideoFrameKey : webrtc::VideoFrameType::kVideoFrameDelta;
auto error = m_internalDecoder->Decode(image, false, 0);
m_postTaskCallback([protectedThis = Ref { *this }, error, callback = WTFMove(callback)]() mutable {
if (protectedThis->m_isClosed)
return;
if (error)
protectedThis->m_outputCallback(makeUnexpected(makeString("VPx decoding failed with error ", error)));
callback({ });
});
}
static UniqueRef<webrtc::VideoDecoder> createInternalDecoder(LibWebRTCVPXVideoDecoder::Type type)
{
switch (type) {
case LibWebRTCVPXVideoDecoder::Type::VP8:
return makeUniqueRefFromNonNullUniquePtr(webrtc::VP8Decoder::Create());
case LibWebRTCVPXVideoDecoder::Type::VP9:
return makeUniqueRefFromNonNullUniquePtr(webrtc::VP9Decoder::Create());
case LibWebRTCVPXVideoDecoder::Type::AV1:
return createLibWebRTCDav1dDecoder();
}
}
LibWebRTCVPXInternalVideoDecoder::LibWebRTCVPXInternalVideoDecoder(LibWebRTCVPXVideoDecoder::Type type, VideoDecoder::OutputCallback&& outputCallback, VideoDecoder::PostTaskCallback&& postTaskCallback)
: m_outputCallback(WTFMove(outputCallback))
, m_postTaskCallback(WTFMove(postTaskCallback))
, m_internalDecoder(createInternalDecoder(type))
{
m_internalDecoder->RegisterDecodeCompleteCallback(this);
webrtc::VideoDecoder::Settings settings;
settings.set_number_of_cores(webrtc::CpuInfo::DetectNumberOfCores());
m_internalDecoder->Configure(settings);
}
int32_t LibWebRTCVPXInternalVideoDecoder::Decoded(webrtc::VideoFrame& frame)
{
m_postTaskCallback([protectedThis = Ref { *this }, colorSpace = VideoFrameLibWebRTC::colorSpaceFromFrame(frame), buffer = frame.video_frame_buffer(), timestamp = m_timestamp, duration = m_duration]() mutable {
if (protectedThis->m_isClosed)
return;
auto videoFrame = VideoFrameLibWebRTC::create({ }, false, VideoFrame::Rotation::None, WTFMove(colorSpace), WTFMove(buffer), [](auto& buffer) {
return adoptCF(webrtc::createPixelBufferFromFrameBuffer(buffer, [](size_t width, size_t height, webrtc::BufferType bufferType) -> CVPixelBufferRef {
OSType pixelBufferType;
switch (bufferType) {
case webrtc::BufferType::I420:
pixelBufferType = kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange;
break;
case webrtc::BufferType::I010:
pixelBufferType = kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange;
break;
default:
return nullptr;
}
CVPixelBufferRef pixelBuffer = nullptr;
auto status = CVPixelBufferCreate(kCFAllocatorDefault, width, height, pixelBufferType, nullptr, &pixelBuffer);
if (status != kCVReturnSuccess) {
RELEASE_LOG_ERROR(Media, "Failed creating a pixel buffer for converting a VPX frame with error %d", status);
return nullptr;
}
return pixelBuffer;
}));
});
protectedThis->m_outputCallback(VideoDecoder::DecodedFrame { WTFMove(videoFrame), timestamp, duration });
});
return 0;
}
}
#endif // ENABLE(WEB_CODECS) && USE(LIBWEBRTC)
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