/**********
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This library is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License as published by the
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Free Software Foundation; either version 3 of the License, or (at your
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option) any later version. (See <http://www.gnu.org/copyleft/lesser.html>.)
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This library is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
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more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this library; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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**********/
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// "liveMedia"
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// Copyright (c) 1996-2017 Live Networks, Inc. All rights reserved.
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// A 'ServerMediaSubsession' object that creates new, unicast, "RTPSink"s
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// on demand, from an WAV audio file.
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// C++ header
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#ifndef _WAV_AUDIO_FILE_SERVER_MEDIA_SUBSESSION_HH
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#define _WAV_AUDIO_FILE_SERVER_MEDIA_SUBSESSION_HH
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#ifndef _FILE_SERVER_MEDIA_SUBSESSION_HH
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#include "FileServerMediaSubsession.hh"
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#endif
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class WAVAudioFileServerMediaSubsession: public FileServerMediaSubsession{
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public:
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static WAVAudioFileServerMediaSubsession*
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createNew(UsageEnvironment& env, char const* fileName, Boolean reuseFirstSource,
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Boolean convertToULaw = False);
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// If "convertToULaw" is True, 16-bit audio streams are converted to
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// 8-bit u-law audio prior to streaming.
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protected:
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WAVAudioFileServerMediaSubsession(UsageEnvironment& env, char const* fileName,
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Boolean reuseFirstSource, Boolean convertToULaw);
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// called only by createNew();
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virtual ~WAVAudioFileServerMediaSubsession();
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protected: // redefined virtual functions
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virtual void seekStreamSource(FramedSource* inputSource, double& seekNPT, double streamDuration, u_int64_t& numBytes);
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virtual void setStreamSourceScale(FramedSource* inputSource, float scale);
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virtual void setStreamSourceDuration(FramedSource* inputSource, double streamDuration, u_int64_t& numBytes);
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virtual FramedSource* createNewStreamSource(unsigned clientSessionId,
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unsigned& estBitrate);
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virtual RTPSink* createNewRTPSink(Groupsock* rtpGroupsock,
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unsigned char rtpPayloadTypeIfDynamic,
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FramedSource* inputSource);
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virtual void testScaleFactor(float& scale);
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virtual float duration() const;
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protected:
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Boolean fConvertToULaw;
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// The following parameters of the input stream are set after
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// "createNewStreamSource" is called:
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unsigned char fAudioFormat;
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unsigned char fBitsPerSample;
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unsigned fSamplingFrequency;
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unsigned fNumChannels;
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float fFileDuration;
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};
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#endif
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