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/*
* Copyright (C) 2017 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 "RTCPacketOptions.h"
#if USE(LIBWEBRTC)
#include "DataReference.h"
#include "WebCoreArgumentCoders.h"
#include <WebCore/LibWebRTCEnumTraits.h>
namespace WebKit {
void RTCPacketOptions::encode(IPC::Encoder& encoder) const
{
encoder << options.dscp;
encoder << safeCast<int32_t>(options.packet_id);
encoder << options.packet_time_params.rtp_sendtime_extension_id;
encoder << static_cast<int64_t>(options.packet_time_params.srtp_auth_tag_len);
if (options.packet_time_params.srtp_auth_tag_len > 0)
encoder << IPC::DataReference(reinterpret_cast<const uint8_t*>(options.packet_time_params.srtp_auth_key.data()), options.packet_time_params.srtp_auth_key.size());
encoder << options.packet_time_params.srtp_packet_index;
}
std::optional<RTCPacketOptions> RTCPacketOptions::decode(IPC::Decoder& decoder)
{
rtc::PacketTimeUpdateParams params;
rtc::PacketOptions options;
rtc::DiffServCodePoint dscp;
if (!decoder.decode(dscp))
return std::nullopt;
options.dscp = dscp;
std::optional<int32_t> packetId;
decoder >> packetId;
if (!packetId)
return std::nullopt;
options.packet_id = packetId.value();
std::optional<int> rtpSendtimeExtensionId;
decoder >> rtpSendtimeExtensionId;
if (!rtpSendtimeExtensionId)
return std::nullopt;
params.rtp_sendtime_extension_id = rtpSendtimeExtensionId.value();
std::optional<int64_t> srtpAuthTagLength;
decoder >> srtpAuthTagLength;
if (!srtpAuthTagLength)
return std::nullopt;
params.srtp_auth_tag_len = srtpAuthTagLength.value();
if (params.srtp_auth_tag_len > 0) {
IPC::DataReference srtpAuthKey;
if (!decoder.decode(srtpAuthKey))
return std::nullopt;
params.srtp_auth_key = std::vector<char>(static_cast<size_t>(srtpAuthKey.size()));
memcpy(params.srtp_auth_key.data(), reinterpret_cast<const char*>(srtpAuthKey.data()), srtpAuthKey.size() * sizeof(char));
}
std::optional<int64_t> srtpPacketIndex;
decoder >> srtpPacketIndex;
if (!srtpPacketIndex)
return std::nullopt;
params.srtp_packet_index = srtpPacketIndex.value();
options.packet_time_params = WTFMove(params);
return RTCPacketOptions { WTFMove(options) };
}
}
#endif // USE(LIBWEBRTC)
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