The Gif module

type gif_extension = 
  | GifComment of string list
  | GifGraphics of string list
  | GifPlaintext of string list
  | GifApplication of string list
  | GifOtherExt of int * string list

type gif_frame =
  { frame_left: int;
    frame_top: int;
    frame_bitmap: Index8.t;
    mutable frame_extensions: gif_extension list;
    frame_delay: int }

type gif_sequence =
  { screen_width: int;
    screen_height: int;
    screen_colormap: Color.map;
    frames: gif_frame list;
    loops: int }

val check_header : string -> Image.header

Checks the file header

val load : string -> Image.load_option list -> gif_sequence

Loads a gif image sequence

val load_first : string -> Image.load_option list -> Image.t

Loads the first frame of a gif image sequence.

val save : string -> Image.save_option list -> gif_sequence -> unit

Saves a gif image sequence

val save_image : string -> Image.save_option list -> Image.t -> unit

Saves an image as a gif file with only one frame

Below they are all low level interfaces

type in_channel

type out_channel

type screen_info =
  { s_width: int;
    s_height: int;
    s_color_resolution: int;
    s_back_ground_color: int;
    s_colormap: Color.rgb array }

type record_type =
    Undefined
  | Screen_desc
  | Image_desc
  | Extension
  | Terminate

type gif_desc =
  { desc_left: int;
    desc_top: int;
    desc_width: int;
    desc_height: int;
    desc_interlace: bool;
    desc_colormap: Color.rgb array }

val dGifOpenFileName : string -> screen_info * in_channel

val dGifCloseFile : in_channel -> unit

val dGifGetRecordType : in_channel -> record_type

val dGifGetImageDesc : in_channel -> gif_desc

val dGifGetLine : in_channel -> string

val dGifGetExtension : in_channel -> int * string list

val eGifOpenFileName : string -> out_channel

val eGifCloseFile : out_channel -> unit

val eGifPutScreenDesc : out_channel ->screen_info -> unit

val eGifPutImageDesc : out_channel -> gif_desc -> unit

val eGifPutLine : out_channel -> string -> unit

val eGifPutExtension : out_channel -> int * string list -> unit

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