Buffer clone in Thread

General JUCE discussion
1

Firstly, I copied the four channels of the buffer in the processblock

void QUAD_CorrAudioProcessor::processBlock (juce::AudioBuffer<float>& buffer, juce::MidiBuffer& midiMessages)
{     

    juce::dsp::AudioBlock<float> block(buffer);
    
    auto c1 = block.getSingleChannelBlock(0);
    auto c2 = block.getSingleChannelBlock(1);
    auto c3 = block.getSingleChannelBlock(2);
    auto c4 = block.getSingleChannelBlock(3);

    yuanThread.clonebuffer(c1,c2,c3,c4);

Then I use the clonebuffer function in the thread to retrieve the copied blocks from the processblock and obtain pointers for each of the four channels


void IamgeProcessingThread::clonebuffer(const juce::dsp::AudioBlock<float>& other1, const juce::dsp::AudioBlock<float>& other2, const juce::dsp::AudioBlock<float>& other3, const juce::dsp::AudioBlock<float>& other4)
{

	buffer1.clear();
	buffer2.clear();
	buffer3.clear();
	buffer4.clear();

	juce::dsp::AudioBlock<float> block1(buffer1);
	juce::dsp::AudioBlock<float> block2(buffer2);
	juce::dsp::AudioBlock<float> block3(buffer3);
	juce::dsp::AudioBlock<float> block4(buffer4);
	DBG("copy");
	block1.copyFrom(other1);
	block2.copyFrom(other2);
	block3.copyFrom(other3);
	block4.copyFrom(other4);


}
Unfortunately, it keeps reporting errors
2

At the same time, I also initialized it in the prepareToPlay of PluginProcessor

void IamgeProcessingThread::prepare(double sampleRate, int samplesPerBlock)
{

	buffer1.setSize(1, samplesPerBlock);
	buffer2.setSize(1, samplesPerBlock);
	buffer3.setSize(1, samplesPerBlock);
	buffer4.setSize(1, samplesPerBlock);
}
3

Both of these calling methods are useless

void IamgeProcessingThread::run()
{
	while (true)
	{


		if (threadShouldExit())
			break;
		
	
		
		std::array<const float*, 4> channelsData
		{
			buffer1.getReadPointer(0),
			buffer2.getReadPointer(0),
			buffer3.getReadPointer(0),
			buffer4.getReadPointer(0)
	/*		block1.getChannelPointer(0),
			block2.getChannelPointer(0),
			block3.getChannelPointer(0),
			block4.getChannelPointer(0)*/
		};