Method getNextAudioBlock

src/AudioBufferSource.cpp:31–74

Get the next block of audio samples

// Get the next block of audio samples
void AudioBufferSource::getNextAudioBlock (const juce::AudioSourceChannelInfo& info)
{
	int buffer_samples = buffer->getNumSamples();
	int buffer_channels = buffer->getNumChannels();

	if (info.numSamples > 0) {
		int start = position;
		int number_to_copy = 0;

		// Determine how many samples to copy
		if (start + info.numSamples <= buffer_samples)
		{
			// copy the full amount requested
			number_to_copy = info.numSamples;
		}
		else if (start > buffer_samples)
		{
			// copy nothing
			number_to_copy = 0;
		}
		else if (buffer_samples - start > 0)
		{
			// only copy what is left in the buffer
			number_to_copy = buffer_samples - start;
		}
		else
		{
			// copy nothing
			number_to_copy = 0;
		}

		// Determine if any samples need to be copied
		if (number_to_copy > 0)
		{
			// Loop through each channel and copy some samples
			for (int channel = 0; channel < buffer_channels; channel++)
				info.buffer->copyFrom(channel, info.startSample, *buffer, channel, start, number_to_copy);

			// Update the position of this audio source
			position += number_to_copy;
		}

	}
}

// Prepare to play this audio source
void AudioBufferSource::prepareToPlay(int, double) { }