ctx->paletted = 1;
avctx->pix_fmt = AV_PIX_FMT_PAL8;
break;
+ case MKTAG('G', '1', ' ', ' '):
+ ctx->compressed = 0;
+ avctx->pix_fmt = AV_PIX_FMT_MONOBLACK;
+ break;
case MKTAG('D', 'X', '1', '0'):
/* DirectX 10 extra header */
dxgi = bytestream2_get_le32(gbc);