Negotiate H264 profiles in SDP

webrtc/media/base/codec.h

 /*
  *  Copyright (c) 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.
  */
 
 #ifndef WEBRTC_MEDIA_BASE_CODEC_H_
 #define WEBRTC_MEDIA_BASE_CODEC_H_
 
 #include <map>
 #include <set>
 #include <string>
 #include <vector>
 
 #include "webrtc/api/rtpparameters.h"
 #include "webrtc/common_types.h"
 #include "webrtc/media/base/mediaconstants.h"
 
 namespace cricket {
 
 typedef std::map<std::string, std::string> CodecParameterMap;
 
-extern const int kMaxPayloadId;
-
 class FeedbackParam {
  public:
   FeedbackParam(const std::string& id, const std::string& param)
       : id_(id),
         param_(param) {
   }
   explicit FeedbackParam(const std::string& id)
       : id_(id),
         param_(kParamValueEmpty) {
   }
@@ skipping 108 matching lines @@
   // Creates a codec with the given parameters.
   VideoCodec(int id, const std::string& name);
   // Creates a codec with the given name and empty id.
   explicit VideoCodec(const std::string& name);
   // Creates an empty codec.
   VideoCodec();
   VideoCodec(const VideoCodec& c);
   VideoCodec(VideoCodec&& c);
   virtual ~VideoCodec() = default;
 
+  // Indicates if this video codec is the same as the other video codec, e.g. if
+  // they are both VP8 or VP9, or if they are both H264 with the same H264
+  // profile. H264 levels however are not compared.
+  bool Matches(const VideoCodec& codec) const;
+
   std::string ToString() const;
 
   VideoCodec& operator=(const VideoCodec& c);
   VideoCodec& operator=(VideoCodec&& c);
 
   bool operator==(const VideoCodec& c) const;
 
   bool operator!=(const VideoCodec& c) const {
     return !(*this == c);
   }
@@ skipping 39 matching lines @@
   }
   return nullptr;
 }
 
 bool CodecNamesEq(const std::string& name1, const std::string& name2);
 bool CodecNamesEq(const char* name1, const char* name2);
 webrtc::VideoCodecType CodecTypeFromName(const std::string& name);
 bool HasNack(const Codec& codec);
 bool HasRemb(const Codec& codec);
 bool HasTransportCc(const Codec& codec);
-bool IsCodecSupported(const std::vector<VideoCodec>& supported_codecs,
-                      const VideoCodec& codec);
+// Returns the first codec in |supported_codecs| that matches |codec|, or
+// nullptr if no codec matches.
+const VideoCodec* FindMatchingCodec(
+    const std::vector<VideoCodec>& supported_codecs,
+    const VideoCodec& codec);
 
 }  // namespace cricket
 
 #endif  // WEBRTC_MEDIA_BASE_CODEC_H_