Making a video with opencv and ffmpeg. How to find the right color format?

Question

I have a webcam video recorder program built with python, opencv and ffmpeg

It works ok except that the color of the video is more blue than the reality. The problem see

Answer 1

The libx264 codec is able to process BGR images. No need to use any conversion to YCbCr. NO need to give a spcific pix_ftm to ffmpeg. I was using RGB and it was causing the blueish effect on the video.

The solution was simply to use the original image retuned by the camera without any conversion. :)

I tried this in my previous investigation and it was crashing the app. The solution is to copy the frame returned by the camera.

    frame = opencv.QueryFrame(camera)
    if not frame:
        return None, None

    # RGB : use this one for displaying on the screen
    im_rgb = opencv.CreateImage(self.size,  opencv.IPL_DEPTH_8U, 3)
    opencv.CvtColor(frame, im_rgb, opencv.CV_BGR2RGB)

    # BGR : Use this one for the video
    im_bgr = opencv.CreateImage(self.size,  opencv.IPL_DEPTH_8U, 3)
    opencv.Copy(frame, im_bgr)

    return im_rgb, im_bgr