Method SetVideoOptions

src/ImageWriter.cpp:36–76

Set video export options

// Set video export options
void ImageWriter::SetVideoOptions(
    std::string format, Fraction fps, int width, int height,
    int quality, int loops, bool combine)
{
    // Set frames per second (if provided)
    info.fps = fps;

    // Set image magic properties
    image_quality = quality;
    number_of_loops = loops;
    combine_frames = combine;
    info.vcodec = format;

    // Set the timebase (inverse of fps)
    info.video_timebase = fps.Reciprocal();

    info.width = std::max(1, width);
    info.height = std::max(1, height);

    info.video_bit_rate = quality;

    // Calculate the DAR (display aspect ratio)
    Fraction size(
        info.width * info.pixel_ratio.num,
        info.height * info.pixel_ratio.den);

    // Reduce size fraction
    size.Reduce();

    // Set the ratio based on the reduced fraction
    info.display_ratio = size;

    ZmqLogger::Instance()->AppendDebugMethod(
        "ImageWriter::SetVideoOptions (" + format + ")",
        "width", width,
        "height", height,
        "size.num", size.num,
        "size.den", size.den,
        "fps.num", fps.num,
        "fps.den", fps.den);
}

// Open the writer
void ImageWriter::Open()