source/modules/juce_audio_formats/format/juce_AudioFormat.cpp

   1 /*
   2   ==============================================================================
   3
   4    This file is part of the JUCE library.
   5    Copyright (c) 2022 - Raw Material Software Limited
   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 7 End-User License
  11    Agreement and JUCE Privacy Policy.
  12
  13    End User License Agreement: www.juce.com/juce-7-licence
  14    Privacy Policy: www.juce.com/juce-privacy-policy
  15
  16    Or: You may also use this code under the terms of the GPL v3 (see
  17    www.gnu.org/licenses).
  18
  19    JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
  20    EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
  21    DISCLAIMED.
  22
  23   ==============================================================================
  24 */
  25
  26 namespace juce
  27 {
  28
  29 AudioFormat::AudioFormat (String name, StringArray extensions)
  30    : formatName (name), fileExtensions (extensions)
  31 {
  32 }
  33
  34 AudioFormat::AudioFormat (StringRef name, StringRef extensions)
  35    : formatName (name.text), fileExtensions (StringArray::fromTokens (extensions, false))
  36 {
  37 }
  38
  39 AudioFormat::~AudioFormat()
  40 {
  41 }
  42
  43 bool AudioFormat::canHandleFile (const File& f)
  44 {
  45     for (auto& e : getFileExtensions())
  46         if (f.hasFileExtension (e))
  47             return true;
  48
  49     return false;
  50 }
  51
  52 const String& AudioFormat::getFormatName() const                { return formatName; }
  53 StringArray AudioFormat::getFileExtensions() const              { return fileExtensions; }
  54 bool AudioFormat::isCompressed()                                { return false; }
  55 StringArray AudioFormat::getQualityOptions()                    { return {}; }
  56
  57 MemoryMappedAudioFormatReader* AudioFormat::createMemoryMappedReader (const File&)
  58 {
  59     return nullptr;
  60 }
  61
  62 MemoryMappedAudioFormatReader* AudioFormat::createMemoryMappedReader (FileInputStream* fin)
  63 {
  64     delete fin;
  65     return nullptr;
  66 }
  67
  68 bool AudioFormat::isChannelLayoutSupported (const AudioChannelSet& channelSet)
  69 {
  70     if (channelSet == AudioChannelSet::mono())      return canDoMono();
  71     if (channelSet == AudioChannelSet::stereo())    return canDoStereo();
  72
  73     return false;
  74 }
  75
  76 AudioFormatWriter* AudioFormat::createWriterFor (OutputStream* streamToWriteTo,
  77                                                  double sampleRateToUse,
  78                                                  const AudioChannelSet& channelLayout,
  79                                                  int bitsPerSample,
  80                                                  const StringPairArray& metadataValues,
  81                                                  int qualityOptionIndex)
  82 {
  83     if (isChannelLayoutSupported (channelLayout))
  84         return createWriterFor (streamToWriteTo, sampleRateToUse,
  85                                 static_cast<unsigned int> (channelLayout.size()),
  86                                 bitsPerSample, metadataValues, qualityOptionIndex);
  87
  88     return nullptr;
  89 }
  90
  91 } // namespace juce