diff options
Diffstat (limited to 'chromium/third_party/libjingle/source/talk/session/media/bundlefilter.h')
-rwxr-xr-x | chromium/third_party/libjingle/source/talk/session/media/bundlefilter.h | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/chromium/third_party/libjingle/source/talk/session/media/bundlefilter.h b/chromium/third_party/libjingle/source/talk/session/media/bundlefilter.h new file mode 100755 index 00000000000..34bc3307345 --- /dev/null +++ b/chromium/third_party/libjingle/source/talk/session/media/bundlefilter.h @@ -0,0 +1,80 @@ +/* + * libjingle + * Copyright 2004 Google Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO + * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; + * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR + * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF + * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef TALK_SESSION_MEDIA_BUNDLEFILTER_H_ +#define TALK_SESSION_MEDIA_BUNDLEFILTER_H_ + +#include <set> +#include <vector> + +#include "talk/base/basictypes.h" +#include "talk/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. +// For rtp packets, this is decided based on the payload type. For rtcp packets, +// this is decided based on the sender ssrc values. +class BundleFilter { + public: + BundleFilter(); + ~BundleFilter(); + + // Determines packet belongs to valid cricket::BaseChannel. + bool DemuxPacket(const char* data, size_t len, bool rtcp); + + // Adds the supported payload type. + void AddPayloadType(int payload_type); + + // Adding a valid source to the filter. + bool AddStream(const StreamParams& stream); + + // Removes source from the filter. + bool RemoveStream(uint32 ssrc); + + // Utility methods added for unitest. + // True if |streams_| is not empty. + bool HasStreams() const; + bool FindStream(uint32 ssrc) const; + bool FindPayloadType(int pl_type) const; + void ClearAllPayloadTypes(); + + + private: + std::set<int> payload_types_; + std::vector<StreamParams> streams_; +}; + +} // namespace cricket + +#endif // TALK_SESSION_MEDIA_BUNDLEFILTER_H_ |