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JUCE
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JUCE
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A type of AudioFormatReader that reads from an audio CD. More...
Inherits AudioFormatReader.
Public Types | |
| enum | { framesPerSecond = 75, samplesPerFrame = 44100 / framesPerSecond } |
Public Member Functions | |
| ~AudioCDReader () | |
| Destructor. | |
| bool | readSamples (int **destSamples, int numDestChannels, int startOffsetInDestBuffer, int64 startSampleInFile, int numSamples) |
| Implementation of the AudioFormatReader method. | |
| bool | isCDStillPresent () const |
| Checks whether the CD has been removed from the drive. | |
| int | getNumTracks () const |
| Returns the total number of tracks (audio + data). | |
| int | getPositionOfTrackStart (int trackNum) const |
| Finds the sample offset of the start of a track. | |
| bool | isTrackAudio (int trackNum) const |
| Returns true if a given track is an audio track. | |
| const Array< int > & | getTrackOffsets () const |
| Returns an array of sample offsets for the start of each track, followed by the sample position of the end of the CD. | |
| void | refreshTrackLengths () |
| Refreshes the object's table of contents. | |
| void | enableIndexScanning (bool enabled) |
| Enables scanning for indexes within tracks. | |
| int | getLastIndex () const |
| Returns the index number found during the last read() call. | |
| Array< int > | findIndexesInTrack (const int trackNumber) |
| Scans a track to find the position of any indexes within it. | |
| int | getCDDBId () |
| Returns the CDDB id number for the CD. | |
| void | ejectDisk () |
| Tries to eject the disk. | |
Static Public Member Functions | |
| static StringArray | getAvailableCDNames () |
| Returns a list of names of Audio CDs currently available for reading. | |
| static AudioCDReader * | createReaderForCD (const int index) |
| Tries to create an AudioFormatReader that can read from an Audio CD. | |
A type of AudioFormatReader that reads from an audio CD.
One of these can be used to read a CD as if it's one big audio stream. Use the getPositionOfTrackStart() method to find where the individual tracks are within the stream.
Destructor.
| static StringArray AudioCDReader::getAvailableCDNames | ( | ) | [static] |
Returns a list of names of Audio CDs currently available for reading.
If there's a CD drive but no CD in it, this might return an empty list, or possibly a device that can be opened but which has no tracks, depending on the platform.
| static AudioCDReader* AudioCDReader::createReaderForCD | ( | const int | index | ) | [static] |
Tries to create an AudioFormatReader that can read from an Audio CD.
| index | the index of one of the available CDs - use getAvailableCDNames() to find out how many there are. |
| bool AudioCDReader::readSamples | ( | int ** | destSamples, |
| int | numDestChannels, | ||
| int | startOffsetInDestBuffer, | ||
| int64 | startSampleInFile, | ||
| int | numSamples | ||
| ) | [virtual] |
Implementation of the AudioFormatReader method.
Implements AudioFormatReader.
| bool AudioCDReader::isCDStillPresent | ( | ) | const |
Checks whether the CD has been removed from the drive.
| int AudioCDReader::getNumTracks | ( | ) | const |
Returns the total number of tracks (audio + data).
| int AudioCDReader::getPositionOfTrackStart | ( | int | trackNum | ) | const |
Finds the sample offset of the start of a track.
| trackNum | the track number, where trackNum = 0 is the first track and trackNum = getNumTracks() means the end of the CD. |
| bool AudioCDReader::isTrackAudio | ( | int | trackNum | ) | const |
Returns true if a given track is an audio track.
| trackNum | the track number, where 0 is the first track. |
| const Array<int>& AudioCDReader::getTrackOffsets | ( | ) | const |
Returns an array of sample offsets for the start of each track, followed by the sample position of the end of the CD.
| void AudioCDReader::refreshTrackLengths | ( | ) |
Refreshes the object's table of contents.
If the disc has been ejected and a different one put in since this object was created, this will cause it to update its idea of how many tracks there are, etc.
| void AudioCDReader::enableIndexScanning | ( | bool | enabled | ) |
Enables scanning for indexes within tracks.
| int AudioCDReader::getLastIndex | ( | ) | const |
Returns the index number found during the last read() call.
Index scanning is turned off by default - turn it on with enableIndexScanning().
Then when the read() method is called, if it comes across an index within that block, the index number is stored and returned by this method.
Some devices might not support indexes, of course.
(If you don't know what CD indexes are, it's unlikely you'll ever need them).
| Array<int> AudioCDReader::findIndexesInTrack | ( | const int | trackNumber | ) |
Scans a track to find the position of any indexes within it.
| trackNumber | the track to look in, where 0 is the first track on the disc |
| int AudioCDReader::getCDDBId | ( | ) |
Returns the CDDB id number for the CD.
It's not a great way of identifying a disc, but it's traditional.
| void AudioCDReader::ejectDisk | ( | ) |
Tries to eject the disk.
Ejecting the disk might not actually be possible, e.g. if some other process is using it.
