AudioFormatManager Class Reference

List of all members.

Detailed Description

A class for keeping a list of available audio formats, and for deciding which one to use to open a given file.

You can either use this class as a singleton object, or create instances of it yourself. Once created, use its registerFormat() method to tell it which formats it should use.

See also:
AudioFormat


Public Member Functions

 AudioFormatManager ()
 Creates an empty format manager.
 ~AudioFormatManager ()
 Destructor.
 juce_DeclareSingleton (AudioFormatManager, false)
void registerFormat (AudioFormat *newFormat, const bool makeThisTheDefaultFormat)
 Adds a format to the manager's list of available file types.
void registerBasicFormats ()
 Handy method to make it easy to register the formats that come with Juce.
void clearFormats ()
 Clears the list of known formats.
int getNumKnownFormats () const
 Returns the number of currently registered file formats.
AudioFormat * getKnownFormat (const int index) const
 Returns one of the registered file formats.
AudioFormat * findFormatForFileExtension (const String &fileExtension) const
 Looks for which of the known formats is listed as being for a given file extension.
AudioFormat * getDefaultFormat () const
 Returns the format which has been set as the default one.
const String getWildcardForAllFormats () const
 Returns a set of wildcards for file-matching that contains the extensions for all known formats.
AudioFormatReader * createReaderFor (const File &audioFile)
 Searches through the known formats to try to create a suitable reader for this file.
AudioFormatReader * createReaderFor (InputStream *audioFileStream)
 Searches through the known formats to try to create a suitable reader for this stream.

Constructor & Destructor Documentation

AudioFormatManager::AudioFormatManager (   ) 
 

Creates an empty format manager.

Before it'll be any use, you'll need to call registerFormat() with all the formats you want it to be able to recognise.

AudioFormatManager::~AudioFormatManager (   ) 
 

Destructor.

Member Function Documentation

AudioFormatManager::juce_DeclareSingleton (  AudioFormatManager  ,
false 
) 
 

void AudioFormatManager::registerFormat (  AudioFormat *  newFormat,
const bool  makeThisTheDefaultFormat
) 
 

Adds a format to the manager's list of available file types.

The object passed-in will be deleted by this object, so don't keep a pointer to it!

If makeThisTheDefaultFormat is true, then the getDefaultFormat() method will return this one when called.

void AudioFormatManager::registerBasicFormats (   ) 
 

Handy method to make it easy to register the formats that come with Juce.

Currently, this will add WAV and AIFF to the list.

void AudioFormatManager::clearFormats (   ) 
 

Clears the list of known formats.

int AudioFormatManager::getNumKnownFormats (   )  const
 

Returns the number of currently registered file formats.

AudioFormat* AudioFormatManager::getKnownFormat (  const int  index  )  const
 

Returns one of the registered file formats.

AudioFormat* AudioFormatManager::findFormatForFileExtension (  const String &  fileExtension  )  const
 

Looks for which of the known formats is listed as being for a given file extension.

The extension may have a dot before it, so e.g. ".wav" or "wav" are both ok.

AudioFormat* AudioFormatManager::getDefaultFormat (   )  const
 

Returns the format which has been set as the default one.

You can set a format as being the default when it is registered. It's useful when you want to write to a file, because the best format may change between platforms, e.g. AIFF is preferred on the Mac, WAV on Windows.

If none has been set as the default, this method will just return the first one in the list.

const String AudioFormatManager::getWildcardForAllFormats (   )  const
 

Returns a set of wildcards for file-matching that contains the extensions for all known formats.

E.g. if might return "*.wav;*.aiff" if it just knows about wavs and aiffs.

AudioFormatReader* AudioFormatManager::createReaderFor (  const File &  audioFile  ) 
 

Searches through the known formats to try to create a suitable reader for this file.

If none of the registered formats can open the file, it'll return 0. If it returns a reader, it's the caller's responsibility to delete the reader.

AudioFormatReader* AudioFormatManager::createReaderFor (  InputStream *  audioFileStream  ) 
 

Searches through the known formats to try to create a suitable reader for this stream.

The stream object that is passed-in will be deleted by this method or by the reader that is returned, so the caller should not keep any references to it.

The stream that is passed-in must be capable of being repositioned so that all the formats can have a go at opening it.

If none of the registered formats can open the stream, it'll return 0. If it returns a reader, it's the caller's responsibility to delete the reader.

The documentation for this class was generated from the following file: