OpenShot Audio Library | OpenShotAudio  0.3.0
juce_AudioFormat.h
1 /*
2  ==============================================================================
3 
4  This file is part of the JUCE library.
5  Copyright (c) 2017 - ROLI Ltd.
6 
7  JUCE is an open source library subject to commercial or open-source
8  licensing.
9 
10  By using JUCE, you agree to the terms of both the JUCE 5 End-User License
11  Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
12  27th April 2017).
13 
14  End User License Agreement: www.juce.com/juce-5-licence
15  Privacy Policy: www.juce.com/juce-5-privacy-policy
16 
17  Or: You may also use this code under the terms of the GPL v3 (see
18  www.gnu.org/licenses).
19 
20  JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
21  EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
22  DISCLAIMED.
23 
24  ==============================================================================
25 */
26 
27 namespace juce
28 {
29 
30 //==============================================================================
39 class JUCE_API AudioFormat
40 {
41 public:
42  //==============================================================================
44  virtual ~AudioFormat();
45 
46  //==============================================================================
50  const String& getFormatName() const;
51 
52  //==============================================================================
58  virtual StringArray getFileExtensions() const;
59 
65  virtual bool canHandleFile (const File& fileToTest);
66 
69 
72 
74  virtual bool canDoStereo() = 0;
75 
77  virtual bool canDoMono() = 0;
78 
80  virtual bool isCompressed();
81 
83  virtual bool isChannelLayoutSupported (const AudioChannelSet& channelSet);
84 
93  virtual StringArray getQualityOptions();
94 
95  //==============================================================================
112  bool deleteStreamIfOpeningFails) = 0;
113 
117  virtual MemoryMappedAudioFormatReader* createMemoryMappedReader (const File& file);
118  virtual MemoryMappedAudioFormatReader* createMemoryMappedReader (FileInputStream* fin);
119 
150  virtual AudioFormatWriter* createWriterFor (OutputStream* streamToWriteTo,
151  double sampleRateToUse,
152  unsigned int numberOfChannels,
153  int bitsPerSample,
154  const StringPairArray& metadataValues,
155  int qualityOptionIndex) = 0;
156 
188  virtual AudioFormatWriter* createWriterFor (OutputStream* streamToWriteTo,
189  double sampleRateToUse,
190  const AudioChannelSet& channelLayout,
191  int bitsPerSample,
192  const StringPairArray& metadataValues,
193  int qualityOptionIndex);
194 
195 protected:
201  AudioFormat (String formatName, StringArray fileExtensions);
202 
209  AudioFormat (StringRef formatName, StringRef fileExtensions);
210 
211 private:
212  //==============================================================================
213  String formatName;
214  StringArray fileExtensions;
215 };
216 
217 } // namespace juce
virtual Array< int > getPossibleBitDepths()=0
virtual bool canDoStereo()=0
virtual bool canDoMono()=0
virtual AudioFormatWriter * createWriterFor(OutputStream *streamToWriteTo, double sampleRateToUse, unsigned int numberOfChannels, int bitsPerSample, const StringPairArray &metadataValues, int qualityOptionIndex)=0
virtual Array< int > getPossibleSampleRates()=0
virtual AudioFormatReader * createReaderFor(InputStream *sourceStream, bool deleteStreamIfOpeningFails)=0