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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 01:47:29 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 01:47:29 +0000
commit0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch)
treea31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /dom/media/webrtc/sdp/SipccSdp.cpp
parentInitial commit. (diff)
downloadfirefox-esr-upstream/115.8.0esr.tar.xz
firefox-esr-upstream/115.8.0esr.zip
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/media/webrtc/sdp/SipccSdp.cpp')
-rw-r--r--dom/media/webrtc/sdp/SipccSdp.cpp173
1 files changed, 173 insertions, 0 deletions
diff --git a/dom/media/webrtc/sdp/SipccSdp.cpp b/dom/media/webrtc/sdp/SipccSdp.cpp
new file mode 100644
index 0000000000..7e36f9e930
--- /dev/null
+++ b/dom/media/webrtc/sdp/SipccSdp.cpp
@@ -0,0 +1,173 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "sdp/SipccSdp.h"
+
+#include <cstdlib>
+#include "mozilla/UniquePtr.h"
+#include "mozilla/Assertions.h"
+#include "sdp/SdpParser.h"
+
+#ifdef CRLF
+# undef CRLF
+#endif
+#define CRLF "\r\n"
+
+namespace mozilla {
+
+SipccSdp::SipccSdp(const SipccSdp& aOrig)
+ : mOrigin(aOrig.mOrigin),
+ mBandwidths(aOrig.mBandwidths),
+ mAttributeList(aOrig.mAttributeList, nullptr) {
+ for (const auto& msection : aOrig.mMediaSections) {
+ mMediaSections.emplace_back(
+ new SipccSdpMediaSection(*msection, &mAttributeList));
+ }
+}
+
+Sdp* SipccSdp::Clone() const { return new SipccSdp(*this); }
+
+const SdpOrigin& SipccSdp::GetOrigin() const { return mOrigin; }
+
+uint32_t SipccSdp::GetBandwidth(const std::string& type) const {
+ auto found = mBandwidths.find(type);
+ if (found == mBandwidths.end()) {
+ return 0;
+ }
+ return found->second;
+}
+
+const SdpMediaSection& SipccSdp::GetMediaSection(size_t level) const {
+ if (level > mMediaSections.size()) {
+ MOZ_CRASH();
+ }
+ return *mMediaSections[level];
+}
+
+SdpMediaSection& SipccSdp::GetMediaSection(size_t level) {
+ if (level > mMediaSections.size()) {
+ MOZ_CRASH();
+ }
+ return *mMediaSections[level];
+}
+
+SdpMediaSection& SipccSdp::AddMediaSection(SdpMediaSection::MediaType mediaType,
+ SdpDirectionAttribute::Direction dir,
+ uint16_t port,
+ SdpMediaSection::Protocol protocol,
+ sdp::AddrType addrType,
+ const std::string& addr) {
+ size_t level = mMediaSections.size();
+ SipccSdpMediaSection* media =
+ new SipccSdpMediaSection(level, &mAttributeList);
+ media->mMediaType = mediaType;
+ media->mPort = port;
+ media->mPortCount = 0;
+ media->mProtocol = protocol;
+ media->mConnection = MakeUnique<SdpConnection>(addrType, addr);
+ media->GetAttributeList().SetAttribute(new SdpDirectionAttribute(dir));
+ mMediaSections.emplace_back(media);
+ return *media;
+}
+
+bool SipccSdp::LoadOrigin(sdp_t* sdp, InternalResults& results) {
+ std::string username = sdp_get_owner_username(sdp);
+ uint64_t sessId = strtoull(sdp_get_owner_sessionid(sdp), nullptr, 10);
+ uint64_t sessVer = strtoull(sdp_get_owner_version(sdp), nullptr, 10);
+
+ sdp_nettype_e type = sdp_get_owner_network_type(sdp);
+ if (type != SDP_NT_INTERNET) {
+ results.AddParseError(2, "Unsupported network type");
+ return false;
+ }
+
+ sdp::AddrType addrType;
+ switch (sdp_get_owner_address_type(sdp)) {
+ case SDP_AT_IP4:
+ addrType = sdp::kIPv4;
+ break;
+ case SDP_AT_IP6:
+ addrType = sdp::kIPv6;
+ break;
+ default:
+ results.AddParseError(2, "Unsupported address type");
+ return false;
+ }
+
+ std::string address = sdp_get_owner_address(sdp);
+ mOrigin = SdpOrigin(username, sessId, sessVer, addrType, address);
+ return true;
+}
+
+bool SipccSdp::Load(sdp_t* sdp, InternalResults& results) {
+ // Believe it or not, SDP_SESSION_LEVEL is 0xFFFF
+ if (!mAttributeList.Load(sdp, SDP_SESSION_LEVEL, results)) {
+ return false;
+ }
+
+ if (!LoadOrigin(sdp, results)) {
+ return false;
+ }
+
+ if (!mBandwidths.Load(sdp, SDP_SESSION_LEVEL, results)) {
+ return false;
+ }
+
+ for (int i = 0; i < sdp_get_num_media_lines(sdp); ++i) {
+ // note that we pass a "level" here that is one higher
+ // sipcc counts media sections from 1, using 0xFFFF as the "session"
+ UniquePtr<SipccSdpMediaSection> section(
+ new SipccSdpMediaSection(i, &mAttributeList));
+ if (!section->Load(sdp, i + 1, results)) {
+ return false;
+ }
+ mMediaSections.push_back(std::move(section));
+ }
+ return true;
+}
+
+void SipccSdp::Serialize(std::ostream& os) const {
+ os << "v=0" << CRLF << mOrigin << "s=-" << CRLF;
+
+ // We don't support creating i=, u=, e=, p=
+ // We don't generate c= at the session level (only in media)
+
+ mBandwidths.Serialize(os);
+ os << "t=0 0" << CRLF;
+
+ // We don't support r= or z=
+
+ // attributes
+ os << mAttributeList;
+
+ // media sections
+ for (const auto& msection : mMediaSections) {
+ os << *msection;
+ }
+}
+
+bool SipccSdpBandwidths::Load(sdp_t* sdp, uint16_t level,
+ InternalResults& results) {
+ size_t count = sdp_get_num_bw_lines(sdp, level);
+ for (size_t i = 1; i <= count; ++i) {
+ sdp_bw_modifier_e bwtype = sdp_get_bw_modifier(sdp, level, i);
+ uint32_t bandwidth = sdp_get_bw_value(sdp, level, i);
+ if (bwtype != SDP_BW_MODIFIER_UNSUPPORTED) {
+ const char* typeName = sdp_get_bw_modifier_name(bwtype);
+ (*this)[typeName] = bandwidth;
+ }
+ }
+
+ return true;
+}
+
+void SipccSdpBandwidths::Serialize(std::ostream& os) const {
+ for (auto i = begin(); i != end(); ++i) {
+ os << "b=" << i->first << ":" << i->second << CRLF;
+ }
+}
+
+} // namespace mozilla