Creating a video from makie png files?

[rkube]

Hi,
I'm trying to create a video from png files that I write with Makie.
the files are of type

❯ file output/frame_00122.png
output/frame_00122.png: PNG image data, 2400 x 1600, 8-bit/color RGBA, non-interlaced

When I try to create a video I get an ArgumentError that the array is not yet supported:

julia> open_video_out("video.mp4", load(joinpath("output", first(imgnames))), framerate=24) do writer
           for i in eachindex(imgnames)
               img = load(joinpath("output", imgnames[i]))
               write(writer, img)
           end
       end
ERROR: ArgumentError: Encoding arrays with eltype ColorTypes.RGBA{FixedPointNumbers.N0f8} not yet supported
Stacktrace:
 [1] VideoIO.VideoWriter(filename::String, ::Type{…}, sz::Tuple{…}; codec_name::Nothing, framerate::Int64, scanline_major::Bool, container_options::@NamedTuple{}, container_private_options::@NamedTuple{}, encoder_options::@NamedTuple{}, encoder_private_options::@NamedTuple{}, swscale_options::@NamedTuple{}, target_pix_fmt::Nothing, pix_fmt_loss_flags::Int64, input_colorspace_details::Nothing, allow_vio_gray_transform::Bool, sws_color_options::@NamedTuple{}, thread_count::Nothing)
   @ VideoIO ~/.julia/packages/VideoIO/bGXs5/src/encoding.jl:265
 [2] VideoWriter
   @ ~/.julia/packages/VideoIO/bGXs5/src/encoding.jl:234 [inlined]
 [3] VideoWriter
   @ ~/.julia/packages/VideoIO/bGXs5/src/encoding.jl:390 [inlined]
 [4] open_video_out
   @ ~/.julia/packages/VideoIO/bGXs5/src/encoding.jl:484 [inlined]
 [5] open_video_out(f::var"#29#30", s::String, args::Matrix{ColorTypes.RGBA{FixedPointNumbers.N0f8}}; kwargs::@Kwargs{framerate::Int64})
   @ VideoIO ~/.julia/packages/VideoIO/bGXs5/src/encoding.jl:487
 [6] top-level scope
   @ REPL[30]:1
Some type information was truncated. Use `show(err)` to see complete types.

Is there a way I can save the png file in a compatible format?