1/**********
2This library is free software; you can redistribute it and/or modify it under
3the terms of the GNU Lesser General Public License as published by the
4Free Software Foundation; either version 3 of the License, or (at your
5option) any later version. (See <http://www.gnu.org/copyleft/lesser.html>.)
6
7This library is distributed in the hope that it will be useful, but WITHOUT
8ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
9FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
10more details.
11
12You should have received a copy of the GNU Lesser General Public License
13along with this library; if not, write to the Free Software Foundation, Inc.,
1451 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
15**********/
16// "liveMedia"
17// Copyright (c) 1996-2020 Live Networks, Inc. All rights reserved.
18// A source object for AAC audio files in ADTS format
19// C++ header
20
21#ifndef _ADTS_AUDIO_FILE_SOURCE_HH
22#define _ADTS_AUDIO_FILE_SOURCE_HH
23
24#ifndef _FRAMED_FILE_SOURCE_HH
25#include "FramedFileSource.hh"
26#endif
27
28class ADTSAudioFileSource: public FramedFileSource {
29public:
30 static ADTSAudioFileSource* createNew(UsageEnvironment& env,
31 char const* fileName);
32
33 unsigned samplingFrequency() const { return fSamplingFrequency; }
34 unsigned numChannels() const { return fNumChannels; }
35 char const* configStr() const { return fConfigStr; }
36 // returns the 'AudioSpecificConfig' for this stream (in ASCII form)
37
38private:
39 ADTSAudioFileSource(UsageEnvironment& env, FILE* fid, u_int8_t profile,
40 u_int8_t samplingFrequencyIndex, u_int8_t channelConfiguration);
41 // called only by createNew()
42
43 virtual ~ADTSAudioFileSource();
44
45private:
46 // redefined virtual functions:
47 virtual void doGetNextFrame();
48
49private:
50 unsigned fSamplingFrequency;
51 unsigned fNumChannels;
52 unsigned fuSecsPerFrame;
53 char fConfigStr[5];
54};
55
56#endif
57