Revision control
++ // Copyright (C) 2024 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
++
++ #include <QtFFmpegMediaPluginImpl/private/qandroidvideoframefactory_p.h>
++
++ #include <QtMultimedia/qvideoframe.h>
++
++ QT_BEGIN_NAMESPACE
++ namespace {
++ // This is due to a limitation of ImageReader. When limit is reached, we cannot acquire more frames
++ // until we close any of the previous image. That is why, When the limit is reached, we will do
++ // a copy of the frame data and immediately close the image.
++ constexpr int NATIVE_FRAME_LIMIT = 10;
++ }
++
++
++ QVideoFrame QAndroidVideoFrameFactory::createVideoFrame(QtJniTypes::Image frame,
++ QtVideo::Rotation rotation)
++ {
++ const int currentCounter = m_framesCounter.fetch_add(1, std::memory_order_relaxed) + 1;
++
++ auto frameAdapter = std::make_unique<QAndroidVideoFrameBuffer>(
++ frame,
++ shared_from_this(),
++ currentCounter > NATIVE_FRAME_LIMIT ?
++ QAndroidVideoFrameBuffer::MemoryPolicy::Copy
++ : QAndroidVideoFrameBuffer::MemoryPolicy::Reuse,
++ rotation);
++
++ if (!frameAdapter->isParsed())
++ return QVideoFrame{};
++
++ const qint64 currentTimeStamp = frameAdapter->timestamp();
++ QVideoFrame videoFrame(std::move(frameAdapter));
++
++ if (m_lastTimestamp == 0)
++ m_lastTimestamp = currentTimeStamp;
++
++ videoFrame.setStartTime(m_lastTimestamp);
++ videoFrame.setEndTime(currentTimeStamp);
++
++ m_lastTimestamp = currentTimeStamp;
++
++ return videoFrame;
++ }
++
++ void QAndroidVideoFrameFactory::onFrameReleased()
++ {
++ const int currentCounter = m_framesCounter.fetch_sub(1, std::memory_order_relaxed);
++ Q_ASSERT(currentCounter >= 0);
++ }
++
++ QT_END_NAMESPACE