text: /*
   *  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.
   */
  
  #ifndef WEBRTC_PC_BUNDLEFILTER_H_
  #define WEBRTC_PC_BUNDLEFILTER_H_
  
  #include <stdint.h>
  
  #include <set>
  #include <vector>
  
  #include "webrtc/base/basictypes.h"
  #include "webrtc/media/base/streamparams.h"
  
  namespace cricket {
  
  // In case of single RTP session and single transport channel, all session
  // (or media) channels share a common transport channel. Hence they all get
  // SignalReadPacket when packet received on transport channel. This requires
  // cricket::BaseChannel to know all the valid sources, else media channel
  // will decode invalid packets.
  //
  // This class determines whether a packet is destined for cricket::BaseChannel.
  // This is only to be used for RTP packets as RTCP packets are not filtered.
  // For RTP packets, this is decided based on the payload type.
  class BundleFilter {
   public:
    BundleFilter();
    ~BundleFilter();
  
    // Determines if a RTP packet belongs to valid cricket::BaseChannel.
    bool DemuxPacket(const uint8_t* data, size_t len);
  
    // Adds the supported payload type.
    void AddPayloadType(int payload_type);
  
    // Public for unittests.
    bool FindPayloadType(int pl_type) const;
    void ClearAllPayloadTypes();
  
   private:
    std::set<int> payload_types_;
  };
  
  }  // namespace cricket
  
  #endif  // WEBRTC_PC_BUNDLEFILTER_H_
  