Lack of information on how to use input pipes

[Looki2000]

I'm trying to make video from image and audio numpy arrays instead of reading them from file, and there's not enough information on how to do that.

I only managed to save images as video, but I also need to somehow write audio, and I can't find a way to have multiple pipes.

output_file = "output.mp4"

# video stream
video = (
    ffmpeg
    .input("pipe:", format="rawvideo", pix_fmt="bgr24", s="{}x{}".format(*video_res), r=video_frame_rate)
    .output(output_file, pix_fmt="yuv420p", vcodec="libx264", r=video_frame_rate)
    .overwrite_output()
    .run_async(pipe_stdin=True)
)

# write video frames to video input pipe
for image, duration in zip(images, images_durations):
    for _ in range(duration):
        video.stdin.write(image.tobytes())

[to7m]

You can't pass multiple pipes to a process. Even if you could, for some reason ffmpeg probably wouldn't be compatible with it as it doesn't even allow reading from 2 named pipes. The cleanest way is to have 2 processes: one to an audio file, one to a video file. Then at the end of the script, combine them.