Color moving picture coding apparatus, a color video decoding apparatus, a color video encoding method and a color video decoding method

For the first color component, 4: 0: 0 to implementing intra-frame predictive coding when a format or the local decoded image of the first color component contained in the other pictures of the encoded the utilized as a reference picture out the inter-frame predictive coding. The second color component and the third color component, to implement the inter-frame predictive coding by using the local decoded image of the first color component contained in the coded same picture as a reference picture.