| /********** |
| This library is free software; you can redistribute it and/or modify it under |
| the terms of the GNU Lesser General Public License as published by the |
| Free Software Foundation; either version 2.1 of the License, or (at your |
| option) any later version. (See <http://www.gnu.org/copyleft/lesser.html>.) |
| |
| This library is distributed in the hope that it will be useful, but WITHOUT |
| ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
| FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for |
| more details. |
| |
| You should have received a copy of the GNU Lesser General Public License |
| along with this library; if not, write to the Free Software Foundation, Inc., |
| 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| **********/ |
| // "liveMedia" |
| // Copyright (c) 1996-2015 Live Networks, Inc. All rights reserved. |
| // RTP sink for MPEG-4 audio, using LATM multiplexing (RFC 3016) |
| // (Note that the initial 'size' field is assumed to be present at the start of |
| // each frame.) |
| // C++ header |
| |
| #ifndef _MPEG4_LATM_AUDIO_RTP_SINK_HH |
| #define _MPEG4_LATM_AUDIO_RTP_SINK_HH |
| |
| #ifndef _AUDIO_RTP_SINK_HH |
| #include "AudioRTPSink.hh" |
| #endif |
| |
| class MPEG4LATMAudioRTPSink: public AudioRTPSink { |
| public: |
| static MPEG4LATMAudioRTPSink* createNew(UsageEnvironment& env, |
| Groupsock* RTPgs, |
| unsigned char rtpPayloadFormat, |
| u_int32_t rtpTimestampFrequency, |
| char const* streamMuxConfigString, |
| unsigned numChannels, |
| Boolean allowMultipleFramesPerPacket = False); |
| |
| protected: |
| MPEG4LATMAudioRTPSink(UsageEnvironment& env, Groupsock* RTPgs, |
| unsigned char rtpPayloadFormat, |
| u_int32_t rtpTimestampFrequency, |
| char const* streamMuxConfigString, |
| unsigned numChannels, |
| Boolean allowMultipleFramesPerPacket); |
| // called only by createNew() |
| |
| virtual ~MPEG4LATMAudioRTPSink(); |
| |
| private: // redefined virtual functions: |
| virtual void doSpecialFrameHandling(unsigned fragmentationOffset, |
| unsigned char* frameStart, |
| unsigned numBytesInFrame, |
| struct timeval framePresentationTime, |
| unsigned numRemainingBytes); |
| virtual Boolean |
| frameCanAppearAfterPacketStart(unsigned char const* frameStart, |
| unsigned numBytesInFrame) const; |
| |
| virtual char const* auxSDPLine(); // for the "a=fmtp:" SDP line |
| |
| private: |
| char const* fStreamMuxConfigString; |
| char* fFmtpSDPLine; |
| Boolean fAllowMultipleFramesPerPacket; |
| }; |
| |
| #endif |