ffmpeg-avcodec 1.1.3 · OCaml Package

This module contains decoders and encoders for audio, video and subtitle codecs.

type ('media, 'mode) codec

type 'media params

type 'media decoder

type 'media encoder

type encode = [

| `Encoder

]

type decode = [

| `Decoder

]

Constants

val flag_qscale : int

val params : 'media encoder -> 'media params

Get the params of a given encoder

val time_base : 'media encoder -> Avutil.rational

Get the time base of a given encoder.

val name : (_, _) codec -> string

Get the name of a given codec.

type capability = [

| `Draw_horiz_band
| `Dr1
| `Truncated
| `Delay
| `Small_last_frame
| `Subframes
| `Experimental
| `Channel_conf
| `Frame_threads
| `Slice_threads
| `Param_change
| `Other_threads
| `Auto_threads
| `Variable_frame_size
| `Avoid_probing
| `Intra_only
| `Lossless
| `Hardware
| `Hybrid
| `Encoder_reordered_opaque
| `Encoder_flush

]

Codec capabilities.

val capabilities : ([< `Audio | `Video ], encode) codec -> capability list

Get the encoding capabilities for this codec.

type hw_config_method = [

| `Hw_device_ctx
| `Hw_frames_ctx
| `Internal
| `Ad_hoc

]

Codec hardware config method.

type hw_config = {

pixel_format : Avutil.Pixel_format.t;
methods : hw_config_method list;
device_type : Avutil.HwContext.device_type;

}

Hardward config for the given codec.

val hw_configs : ([< `Audio | `Video ], _) codec -> hw_config list

Get the codec's hardward configs.

module Packet : sig ... end

Packet.

module Audio : sig ... end

Audio codecs.

module Video : sig ... end

Video codecs.

module Subtitle : sig ... end

Subtitle codecs.

val decode : 
  'media decoder ->
  ('media Avutil.frame -> unit) ->
  'media Packet.t ->
  unit

Avcodec.decode decoder f packet applies function f to the decoded frames frome the packet according to the decoder configuration.

Raise Error if the decoding failed.

val flush_decoder : 'media decoder -> ('media Avutil.frame -> unit) -> unit

Avcodec.flush_decoder decoder f applies function f to the decoded frames frome the buffered packets in the decoder.

Raise Error if the decoding failed.

val encode : 
  'media encoder ->
  ('media Packet.t -> unit) ->
  'media Avutil.frame ->
  unit

Avcodec.encode encoder f frame applies function f to the encoded packets from the frame according to the encoder configuration.

Raise Error if the encoding failed.

val flush_encoder : 'media encoder -> ('media Packet.t -> unit) -> unit

Avcodec.flush_encoder encoder applies function f to the encoded packets from the buffered frames in the encoder.

Raise Error if the encoding failed.

package ffmpeg-avcodec

Constants