Tiles are stored in sequence from left-to-right, top to bottom. Tile arrangementĨx8 tiles (shown in red) are grouped into larger tiles (shown in blue) which are 128x128 unless they fall off the edge of the frame. The line table contains every possible combination of pixels for a line. Every horizontal line in a tile ultimately references a line table index. Layers are divided into 1200 tiles that are 8 pixels high and 8 pixels wide. The data for each layer is compressed individually to get the compressed size for a given frame layer (and this calculate the offsets for any given frame) you need to first parse the KMI. Layer images are 320 pixels high and 240 pixels wide, although under normal circumstances the outer edges can't be drawn on since the app puts a border around the bottom screen. KMC (Frame Data) Offsetįrames are stored in playback sequence, and split into separate images for layer A, layer B, and layer C. Thumbnails are 80px x 64px, with a black line at the bottom which is normally cropped out when displayed. This section starts with a CRC32 checksum followed by the Flipnote's thumbnail stored as JPEG image data. Unsure, possibly indicates something with layer depth? If you're dealing with DSi Library notes, bear in mind there's some weird quirks with the metadata in them that you may need to handle. The decoded filename can be unpacked to get the author ID, creation timestamp and modified timestamp.

The last byte of an author ID seems to always be null, and isn't included as part of the string.įilenames are base32-encoded using a custom alphabet sequence cwmfjordvegbalksnthpyxquiz012345. Author IDs are usually formatted as lowercase hex strings with dashes like xxxx-xxxx-xxxx-xxxxxx. Īuthor names are null-padded UTF-16 LE strings.

Timestamps are stored as the number of seconds since midnight. The first 3 chars of the section magic identify the section type, and the last char seems to be used for flags of some kind but the meaning of these isn't known. Variants of the format are also used for folder icons and comments. The last 256 bytes of a KWZ is an SHA-256 RSA-2048 signature over the whole file.

The body of the file is structured into sections, with each section beginning with an 8-byte header. The KWZ format is used to store Flipnote animations.

Get flipnote studio 3d after march 31