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/*
* Copyright (C) 2018 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.
*/
#pragma once
#if ENABLE(MEDIA_STREAM)
#include "ImageBuffer.h"
#include "RealtimeMediaSource.h"
#include <wtf/Lock.h>
#include <wtf/RetainPtr.h>
#include <wtf/RunLoop.h>
OBJC_CLASS AVCaptureDeviceFormat;
namespace WebCore {
struct FrameRateRange {
double minimum;
double maximum;
};
struct VideoPresetData {
IntSize size;
Vector<FrameRateRange> frameRateRanges;
double minZoom { 1 };
double maxZoom { 1 };
};
class VideoPreset {
public:
explicit VideoPreset(VideoPresetData&& data)
: m_data(WTFMove(data))
{
}
VideoPreset(IntSize size, Vector<FrameRateRange>&& frameRateRanges, std::optional<double> minZoom, std::optional<double> maxZoom)
: m_data { size, WTFMove(frameRateRanges), minZoom.value_or(1), maxZoom.value_or(1) }
{
ASSERT(m_data.maxZoom >= m_data.minZoom);
}
IntSize size() const { return m_data.size; }
const Vector<FrameRateRange>& frameRateRanges() const { return m_data.frameRateRanges; }
double minZoom() const { return m_data.minZoom; }
double maxZoom() const { return m_data.maxZoom; }
void sortFrameRateRanges();
#if PLATFORM(COCOA) && USE(AVFOUNDATION)
void setFormat(AVCaptureDeviceFormat* format) { m_format = format; }
AVCaptureDeviceFormat* format() const { return m_format.get(); }
#endif
double maxFrameRate() const;
double minFrameRate() const;
bool isZoomSupported() const { return m_data.minZoom != 1 || m_data.maxZoom != 1; }
void log()const;
protected:
VideoPresetData m_data;
#if PLATFORM(COCOA) && USE(AVFOUNDATION)
RetainPtr<AVCaptureDeviceFormat> m_format;
#endif
};
inline void VideoPreset::log() const
{
WTFLogAlways("VideoPreset of size (%d,%d), zoom is [%f, %f]", m_data.size.width(), m_data.size.height(), m_data.minZoom, m_data.maxZoom);
for (auto range : m_data.frameRateRanges)
WTFLogAlways("VideoPreset frame rate range [%f, %f]", range.minimum, range.maximum);
}
inline double VideoPreset::minFrameRate() const
{
double minFrameRate = std::numeric_limits<double>::max();
for (auto& range : m_data.frameRateRanges) {
if (minFrameRate > range.minimum)
minFrameRate = range.minimum;
}
return minFrameRate;
}
inline double VideoPreset::maxFrameRate() const
{
double maxFrameRate = 0;
for (auto& range : m_data.frameRateRanges) {
if (maxFrameRate < range.maximum)
maxFrameRate = range.maximum;
}
return maxFrameRate;
}
inline void VideoPreset::sortFrameRateRanges()
{
std::sort(m_data.frameRateRanges.begin(), m_data.frameRateRanges.end(),
[&] (const auto& a, const auto& b) -> bool {
return a.minimum < b.minimum;
});
}
} // namespace WebCore
#endif // ENABLE(MEDIA_STREAM)
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