Negotiate H264 profiles in SDP

webrtc/pc/mediasession.cc

 /*
  *  Copyright 2004 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #include "webrtc/pc/mediasession.h"
 
 #include <algorithm>  // For std::find_if, std::sort.
 #include <functional>
 #include <map>
 #include <memory>
 #include <set>
 #include <unordered_map>
 #include <utility>
 
 #include "webrtc/base/base64.h"
 #include "webrtc/base/helpers.h"
 #include "webrtc/base/logging.h"
 #include "webrtc/base/stringutils.h"
+#include "webrtc/common_video/h264/profile_level_id.h"
 #include "webrtc/media/base/cryptoparams.h"
 #include "webrtc/media/base/mediaconstants.h"
 #include "webrtc/p2p/base/p2pconstants.h"
 #include "webrtc/pc/channelmanager.h"
 #include "webrtc/pc/srtpfilter.h"
 
 namespace {
 const char kInline[] = "inline:";
 
 void GetSupportedCryptoSuiteNames(void (*func)(const rtc::CryptoOptions&,
@@ skipping 736 matching lines @@
     if (FindMatchingCodec(local_codecs, offered_codecs, ours, &theirs)) {
       C negotiated = ours;
       negotiated.IntersectFeedbackParams(theirs);
       if (IsRtxCodec(negotiated)) {
         const auto apt_it =
             theirs.params.find(kCodecParamAssociatedPayloadType);
         // FindMatchingCodec shouldn't return something with no apt value.
         RTC_DCHECK(apt_it != theirs.params.end());
         negotiated.SetParam(kCodecParamAssociatedPayloadType, apt_it->second);
       }
+      if (CodecNamesEq(ours.name.c_str(), kH264CodecName)) {
+        webrtc::H264::GenerateProfileLevelIdForAnswer(
+            ours.params, theirs.params, &negotiated.params);
+      }
       negotiated.id = theirs.id;
       negotiated.name = theirs.name;
       negotiated_codecs->push_back(std::move(negotiated));
     }
   }
   // RFC3264: Although the answerer MAY list the formats in their desired
   // order of preference, it is RECOMMENDED that unless there is a
   // specific reason, the answerer list formats in the same relative order
   // they were present in the offer.
   std::unordered_map<int, int> payload_type_preferences;
@@ skipping 1362 matching lines @@
       GetFirstMediaContentDescription(sdesc, MEDIA_TYPE_VIDEO));
 }
 
 DataContentDescription* GetFirstDataContentDescription(
     SessionDescription* sdesc) {
   return static_cast<DataContentDescription*>(
       GetFirstMediaContentDescription(sdesc, MEDIA_TYPE_DATA));
 }
 
 }  // namespace cricket