ogg 0.5.1 · OCaml Package

type t

type callbacks = {

read : int -> string * int;
seek : (int -> int) option;
tell : (unit -> int) option;

}

type track =

| Audio_track of string * nativeint
| Video_track of string * nativeint

type standard_tracks = {

mutable audio_track : track option;
mutable video_track : track option;

}

type metadata = string * (string * string) list

type audio_info = {

channels : int;
sample_rate : int;

}

type audio_data = float array array

type video_plane =
  (int, Bigarray.int8_unsigned_elt, Bigarray.c_layout) Bigarray.Array1.t

type video_format =

| Yuvj_420
| Yuvj_422
| Yuvj_444

type video_info = {

fps_numerator : int;
fps_denominator : int;
width : int;
height : int;

}

type video_data = {

format : video_format;
frame_width : int;
frame_height : int;
y_stride : int;
uv_stride : int;
y : video_plane;
u : video_plane;
v : video_plane;

}

exception Invalid_stream

exception Not_available

exception End_of_stream

val init : ?log:(string -> unit) -> callbacks -> t

val init_from_file : ?log:(string -> unit) -> string -> t * Unix.file_descr

val init_from_fd : ?log:(string -> unit) -> Unix.file_descr -> t

val get_ogg_sync : t -> Ogg.Sync.t

val reset : t -> unit

val abort : t -> unit

val eos : t -> bool

val get_tracks : t -> track list

val get_standard_tracks : t -> standard_tracks

val update_standard_tracks : t -> standard_tracks -> unit

val drop_track : t -> track -> unit

val audio_info : t -> track -> audio_info * metadata

val video_info : t -> track -> video_info * metadata

val sample_rate : t -> track -> int * int

val get_track_position : t -> track -> float

val get_position : t -> float

val can_seek : t -> bool

val seek : ?relative:bool -> t -> float -> float

val decode_audio : t -> track -> (audio_data -> unit) -> unit

val decode_video : t -> track -> (video_data -> unit) -> unit

type (!'a, !'b) decoder = {

name : string;
info : unit -> 'a * metadata;
decode : ('b -> unit) -> unit;
restart : Ogg.Stream.stream -> unit;
samples_of_granulepos : Int64.t -> Int64.t;

}

type decoders =

| Video of (video_info, video_data) decoder
| Audio of (audio_info, audio_data) decoder
| Unknown

type register_decoder =
  (Ogg.Stream.packet -> bool) * (Ogg.Stream.stream -> decoders)

val ogg_decoders : (string, register_decoder) Hashtbl.t

package ogg