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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. 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 "LibWebRTCRtpTransceiverBackend.h"
#if ENABLE(WEB_RTC) && USE(LIBWEBRTC)
#include "ContextDestructionObserverInlines.h"
#include "JSDOMPromiseDeferred.h"
#include "LibWebRTCRtpReceiverBackend.h"
#include "LibWebRTCRtpSenderBackend.h"
#include "LibWebRTCUtils.h"
#include "RTCRtpCodecCapability.h"
#include <wtf/TZoneMallocInlines.h>
namespace WebCore {
WTF_MAKE_TZONE_ALLOCATED_IMPL(LibWebRTCRtpTransceiverBackend);
std::unique_ptr<LibWebRTCRtpReceiverBackend> LibWebRTCRtpTransceiverBackend::createReceiverBackend()
{
return makeUnique<LibWebRTCRtpReceiverBackend>(toRef(m_rtcTransceiver->receiver()));
}
std::unique_ptr<LibWebRTCRtpSenderBackend> LibWebRTCRtpTransceiverBackend::createSenderBackend(LibWebRTCPeerConnectionBackend& backend, LibWebRTCRtpSenderBackend::Source&& source)
{
return makeUnique<LibWebRTCRtpSenderBackend>(backend, toRefPtr(m_rtcTransceiver->sender()), WTFMove(source));
}
RTCRtpTransceiverDirection LibWebRTCRtpTransceiverBackend::direction() const
{
return toRTCRtpTransceiverDirection(m_rtcTransceiver->direction());
}
std::optional<RTCRtpTransceiverDirection> LibWebRTCRtpTransceiverBackend::currentDirection() const
{
auto value = m_rtcTransceiver->current_direction();
if (!value)
return std::nullopt;
return toRTCRtpTransceiverDirection(*value);
}
void LibWebRTCRtpTransceiverBackend::setDirection(RTCRtpTransceiverDirection direction)
{
// FIXME: Handle error.
m_rtcTransceiver->SetDirectionWithError(fromRTCRtpTransceiverDirection(direction));
}
String LibWebRTCRtpTransceiverBackend::mid()
{
if (auto mid = m_rtcTransceiver->mid())
return fromStdString(*mid);
return String { };
}
void LibWebRTCRtpTransceiverBackend::stop()
{
m_rtcTransceiver->StopStandard();
}
bool LibWebRTCRtpTransceiverBackend::stopped() const
{
return m_rtcTransceiver->stopped();
}
static inline ExceptionOr<webrtc::RtpCodecCapability> toRtpCodecCapability(const RTCRtpCodecCapability& codec)
{
webrtc::RtpCodecCapability rtcCodec;
if (codec.mimeType.startsWith("video/"_s))
rtcCodec.kind = webrtc::MediaType::VIDEO;
else if (codec.mimeType.startsWith("audio/"_s))
rtcCodec.kind = webrtc::MediaType::AUDIO;
else
return Exception { ExceptionCode::InvalidModificationError, "RTCRtpCodecCapability bad mimeType"_s };
rtcCodec.name = StringView(codec.mimeType).substring(6).utf8().toStdString();
rtcCodec.clock_rate = codec.clockRate;
if (codec.channels)
rtcCodec.num_channels = *codec.channels;
for (auto parameter : StringView(codec.sdpFmtpLine).split(';')) {
auto position = parameter.find('=');
if (position == notFound)
return Exception { ExceptionCode::InvalidModificationError, "RTCRtpCodecCapability sdpFmtLine badly formated"_s };
rtcCodec.parameters.emplace(parameter.left(position).utf8().data(), parameter.substring(position + 1).utf8().data());
}
return rtcCodec;
}
ExceptionOr<void> LibWebRTCRtpTransceiverBackend::setCodecPreferences(const Vector<RTCRtpCodecCapability>& codecs)
{
std::vector<webrtc::RtpCodecCapability> rtcCodecs;
for (auto& codec : codecs) {
auto result = toRtpCodecCapability(codec);
if (result.hasException())
return result.releaseException();
rtcCodecs.push_back(result.releaseReturnValue());
}
auto result = m_rtcTransceiver->SetCodecPreferences(rtcCodecs);
if (!result.ok())
return toException(result);
return { };
}
} // namespace WebCore
#endif // ENABLE(WEB_RTC) && USE(LIBWEBRTC)
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