OpenShot Library | libopenshot-audio
0.2.0
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Public Member Functions | |
WavAudioFormatWriter (OutputStream *const out, const double rate, const AudioChannelSet &channelLayoutToUse, const unsigned int bits, const StringPairArray &metadataValues) | |
bool | write (const int **data, int numSamples) override |
Writes a set of samples to the audio stream. More... | |
bool | flush () override |
Some formats may support a flush operation that makes sure the file is in a valid state before carrying on. More... | |
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virtual | ~AudioFormatWriter () |
Destructor. | |
const String & | getFormatName () const noexcept |
Returns a description of what type of format this is. More... | |
bool | writeFromAudioReader (AudioFormatReader &reader, int64 startSample, int64 numSamplesToRead) |
Reads a section of samples from an AudioFormatReader, and writes these to the output. More... | |
bool | writeFromAudioSource (AudioSource &source, int numSamplesToRead, int samplesPerBlock=2048) |
Reads some samples from an AudioSource, and writes these to the output. More... | |
bool | writeFromAudioSampleBuffer (const AudioBuffer< float > &source, int startSample, int numSamples) |
Writes some samples from an AudioBuffer. | |
bool | writeFromFloatArrays (const float *const *channels, int numChannels, int numSamples) |
Writes some samples from a set of float data channels. | |
double | getSampleRate () const noexcept |
Returns the sample rate being used. | |
int | getNumChannels () const noexcept |
Returns the number of channels being written. | |
int | getBitsPerSample () const noexcept |
Returns the bit-depth of the data being written. | |
bool | isFloatingPoint () const noexcept |
Returns true if it's a floating-point format, false if it's fixed-point. | |
Additional Inherited Members | |
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AudioFormatWriter (OutputStream *destStream, const String &formatName, double sampleRate, unsigned int numberOfChannels, unsigned int bitsPerSample) | |
Creates an AudioFormatWriter object. More... | |
AudioFormatWriter (OutputStream *destStream, const String &formatName, double sampleRate, const AudioChannelSet &audioChannelLayout, unsigned int bitsPerSample) | |
Creates an AudioFormatWriter object. More... | |
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double | sampleRate |
The sample rate of the stream. | |
unsigned int | numChannels |
The number of channels being written to the stream. | |
unsigned int | bitsPerSample |
The bit depth of the file. | |
bool | usesFloatingPointData |
True if it's a floating-point format, false if it's fixed-point. | |
AudioChannelSet | channelLayout |
The audio channel layout that the writer should use. | |
OutputStream * | output |
The output stream for use by subclasses. | |
Definition at line 1290 of file juce_WavAudioFormat.cpp.
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inlineoverridevirtual |
Writes a set of samples to the audio stream.
Note that if you're trying to write the contents of an AudioBuffer, you can use writeFromAudioSampleBuffer().
samplesToWrite | an array of arrays containing the sample data for each channel to write. This is a zero-terminated array of arrays, and can contain a different number of channels than the actual stream uses, and the writer should do its best to cope with this. If the format is fixed-point, each channel will be formatted as an array of signed integers using the full 32-bit range -0x80000000 to 0x7fffffff, regardless of the source's bit-depth. If it is a floating-point format, you should treat the arrays as arrays of floats, and just cast it to an (int**) to pass it into the method. |
numSamples | the number of samples to write |
Implements juce::AudioFormatWriter.
Definition at line 1328 of file juce_WavAudioFormat.cpp.
References juce::AudioFormatReader::bitsPerSample, juce::AudioFormatReader::lengthInSamples, and juce::AudioFormatReader::numChannels.
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inlineoverridevirtual |
Some formats may support a flush operation that makes sure the file is in a valid state before carrying on.
If supported, this means that by calling flush periodically when writing data to a large file, then it should still be left in a readable state if your program crashes. It goes without saying that this method must be called from the same thread that's calling write()! If the format supports flushing and the operation succeeds, this returns true.
Reimplemented from juce::AudioFormatWriter.
Definition at line 1363 of file juce_WavAudioFormat.cpp.