Method apply_waveform

src/Clip.cpp:1400–1426

Apply apply_waveform image to the source frame (if any)

// Apply apply_waveform image to the source frame (if any)
void Clip::apply_waveform(std::shared_ptr<Frame> frame, QSize timeline_size) {

	if (!Waveform()) {
		// Exit if no waveform is needed
		return;
	}

	// Get image from clip
	std::shared_ptr<QImage> source_image = frame->GetImage();

	// Debug output
	ZmqLogger::Instance()->AppendDebugMethod("Clip::apply_waveform (Generate Waveform Image)",
			"frame->number", frame->number,
			"Waveform()", Waveform(),
			"width", timeline_size.width(),
			"height", timeline_size.height());

	// Get the color of the waveform
	int red = wave_color.red.GetInt(frame->number);
	int green = wave_color.green.GetInt(frame->number);
	int blue = wave_color.blue.GetInt(frame->number);
	int alpha = wave_color.alpha.GetInt(frame->number);

	// Generate Waveform Dynamically (the size of the timeline)
	source_image = frame->GetWaveform(timeline_size.width(), timeline_size.height(), red, green, blue, alpha);
	frame->AddImage(source_image);
}

// Scale a source size to a target size (given a specific scale-type)
QSize Clip::scale_size(QSize source_size, ScaleType source_scale, int target_width, int target_height) {