Method WriteFrame

src/ImageWriter.cpp:85–118

Add a frame to the queue waiting to be encoded.

// Add a frame to the queue waiting to be encoded.
void ImageWriter::WriteFrame(std::shared_ptr<Frame> frame)
{
	// Check for open reader (or throw exception)
	if (!is_open) {
		throw WriterClosed(
			"The ImageWriter is closed. "
			"Call Open() before calling this method.", path);
	}

	// Copy and resize image
	auto qimage = frame->GetImage();
	auto frame_image = openshot::QImage2Magick(qimage);
	frame_image->magick( info.vcodec );
	frame_image->backgroundColor(Magick::Color("none"));
	MAGICK_IMAGE_ALPHA(frame_image, true);
	frame_image->quality(image_quality);
	frame_image->animationDelay(info.video_timebase.ToFloat() * 100);
	frame_image->animationIterations(number_of_loops);

	// Calculate correct DAR (display aspect ratio)
	int new_height = info.height * frame->GetPixelRatio().Reciprocal().ToDouble();

	// Resize image
	Magick::Geometry new_size(info.width, new_height);
	new_size.aspect(true);
	frame_image->resize(new_size);


	// Put resized frame in vector (waiting to be written)
	frames.push_back(*frame_image.get());

	// Keep track of the last frame added
	last_frame = frame;
}

// Write a block of frames from a reader
void ImageWriter::WriteFrame(ReaderBase* reader, int64_t start, int64_t length)