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/*
* Copyright (C) 2016 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 "MediaTrackCapabilities.h"
#if ENABLE(MEDIA_STREAM)
#include "RealtimeMediaSourceCapabilities.h"
namespace WebCore {
static DoubleRange capabilityDoubleRange(const CapabilityValueOrRange& value)
{
DoubleRange range;
switch (value.type()) {
case CapabilityValueOrRange::Double:
range.min = value.value().asDouble;
range.max = range.min;
break;
case CapabilityValueOrRange::DoubleRange: {
auto min = value.rangeMin().asDouble;
auto max = value.rangeMax().asDouble;
ASSERT(min != std::numeric_limits<double>::min() || max != std::numeric_limits<double>::max());
if (min != std::numeric_limits<double>::min())
range.min = min;
if (max != std::numeric_limits<double>::max())
range.max = max;
break;
}
case CapabilityValueOrRange::Undefined:
case CapabilityValueOrRange::ULong:
case CapabilityValueOrRange::ULongRange:
ASSERT_NOT_REACHED();
break;
}
return range;
}
static LongRange capabilityIntRange(const CapabilityValueOrRange& value)
{
LongRange range;
switch (value.type()) {
case CapabilityValueOrRange::ULong:
range.min = value.value().asInt;
range.max = range.min;
break;
case CapabilityValueOrRange::ULongRange:
range.min = value.rangeMin().asInt;
range.max = value.rangeMax().asInt;
break;
case CapabilityValueOrRange::Undefined:
case CapabilityValueOrRange::Double:
case CapabilityValueOrRange::DoubleRange:
ASSERT_NOT_REACHED();
break;
}
return range;
}
static Vector<String> capabilityStringVector(const Vector<VideoFacingMode>& modes)
{
return modes.map([](auto& mode) {
return RealtimeMediaSourceSettings::facingMode(mode);
});
}
static Vector<bool> capabilityBooleanVector(RealtimeMediaSourceCapabilities::EchoCancellation cancellation)
{
Vector<bool> result;
result.reserveInitialCapacity(2);
result.uncheckedAppend(true);
if (cancellation == RealtimeMediaSourceCapabilities::EchoCancellation::ReadWrite)
result.uncheckedAppend(false);
return result;
}
MediaTrackCapabilities toMediaTrackCapabilities(const RealtimeMediaSourceCapabilities& capabilities, const String& groupId)
{
MediaTrackCapabilities result;
if (capabilities.supportsWidth())
result.width = capabilityIntRange(capabilities.width());
if (capabilities.supportsHeight())
result.height = capabilityIntRange(capabilities.height());
if (capabilities.supportsAspectRatio())
result.aspectRatio = capabilityDoubleRange(capabilities.aspectRatio());
if (capabilities.supportsFrameRate())
result.frameRate = capabilityDoubleRange(capabilities.frameRate());
if (capabilities.supportsFacingMode())
result.facingMode = capabilityStringVector(capabilities.facingMode());
if (capabilities.supportsVolume())
result.volume = capabilityDoubleRange(capabilities.volume());
if (capabilities.supportsSampleRate())
result.sampleRate = capabilityIntRange(capabilities.sampleRate());
if (capabilities.supportsSampleSize())
result.sampleSize = capabilityIntRange(capabilities.sampleSize());
if (capabilities.supportsEchoCancellation())
result.echoCancellation = capabilityBooleanVector(capabilities.echoCancellation());
if (capabilities.supportsDeviceId())
result.deviceId = capabilities.deviceId();
if (capabilities.supportsGroupId())
result.groupId = groupId;
if (capabilities.supportsFocusDistance())
result.focusDistance = capabilityDoubleRange(capabilities.focusDistance());
if (capabilities.supportsZoom())
result.zoom = capabilityDoubleRange(capabilities.zoom());
return result;
}
}
#endif
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