schema_version: 0.1
type: producer
identifier: decklink
title: Blackmagic Design DeckLink Capture
version: 1
copyright: Copytight (C) 2011 Daniel R. Dennedy
license: LGPL
language: en
creator: Dan Dennedy
tags:
  - Audio
  - Video
description: >
  Capture video and audio using Blackmagic Design DeckLink SDI or Intensity
  HDMI cards.
notes: >
  Please ensure that you use a MLT profile that is compatible with a broadcast
  standard which the card you are using supports. If you must use an interlaced
  profile but wish to deinterlace or scale the input, then you must use the
  consumer producer, e.g.:
  melt -profile square_pal consumer:decklink: profile=dv_pal
bugs:
  - It is incompatible with the yadif deinterlacer.
  - Transport controls such as seeking has no affect.
  - External deck control is not implemented.
  - Only 8-bit Y'CbCr is supported at this time.
parameters:
  - identifier: argument
    title: Card
    type: integer
    default: 0
    minimum: 0
    widget: spinner

  - identifier: channels
    title: Audio channels
    type: integer
    default: 2
    minimum: 2
    maximum: 16
    widget: spinner

  - identifier: buffer
    title: Maximum buffer
    description: >
      There is a queue of frames between this plugin and its consumer.
      If the consumer has a little, intermittent delay then it reduces the
      risk of dropping a frame. However, this provides a maximum number of
      frames that can be buffered to prevent consuming memory unbounded in
      the case of frequent or sustained delays.
    type: integer
    default: 25
    minimum: 0
    unit: frames
    widget: spinner

  - identifier: prefill
    title: Initial buffer
    description: Initially fill the buffer with a number of frames.
    type: integer
    default: 25
    minimum: 0
    unit: frames
    widget: spinner