3 * Copyright 2004 Google Inc.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
8 * 1. Redistributions of source code must retain the above copyright notice,
9 * this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation
12 * and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 #ifndef TALK_SESSION_MEDIA_BUNDLEFILTER_H_
29 #define TALK_SESSION_MEDIA_BUNDLEFILTER_H_
34 #include "talk/media/base/streamparams.h"
35 #include "webrtc/base/basictypes.h"
39 // In case of single RTP session and single transport channel, all session
40 // ( or media) channels share a common transport channel. Hence they all get
41 // SignalReadPacket when packet received on transport channel. This requires
42 // cricket::BaseChannel to know all the valid sources, else media channel
43 // will decode invalid packets.
45 // This class determines whether a packet is destined for cricket::BaseChannel.
46 // For rtp packets, this is decided based on the payload type. For rtcp packets,
47 // this is decided based on the sender ssrc values.
53 // Determines packet belongs to valid cricket::BaseChannel.
54 bool DemuxPacket(const char* data, size_t len, bool rtcp);
56 // Adds the supported payload type.
57 void AddPayloadType(int payload_type);
59 // Adding a valid source to the filter.
60 bool AddStream(const StreamParams& stream);
62 // Removes source from the filter.
63 bool RemoveStream(uint32 ssrc);
65 // Utility methods added for unitest.
66 // True if |streams_| is not empty.
67 bool HasStreams() const;
68 bool FindStream(uint32 ssrc) const;
69 bool FindPayloadType(int pl_type) const;
70 void ClearAllPayloadTypes();
74 std::set<int> payload_types_;
75 std::vector<StreamParams> streams_;
78 } // namespace cricket
80 #endif // TALK_SESSION_MEDIA_BUNDLEFILTER_H_