NCL Composer is a multiplataform and flexible multimedia authoring tool to create Interactive Digital TV (iDTV) applications in NCL (Nested Context Language).

If you are using or want to reference NCL Composer in an academic work, please use one of the following reference:

- Composer: meeting non-functional aspects of hypermedia authoring environment (R. G. A. Azevedo, E. C. Araújo, B. Lima, L. F. G. Soares, M. F. Moreno), In Multimedia Tools and Applications, Springer US, 2014.

- Composer 3: Ambiente de Autoria Extensível, Adaptável e Multiplataforma (B. S. Lima, R. G. A. Azevedo, M. F. Moreno, L. F. G. Soares), In XVI Simpósio Brasileiro de Sistemas Multimídia e Web (WebMedia 2010), 2010. (I Worshop de TV Digital)

NCL Composer Beta (0.1.1) Intro video

Hi everyone,

we have developed an introductory video to the BETA version (0.1.1) of NCL Composer. The video shows how to create a complete application from scratch. By now, the audio is only in Portuguese.

Latest News

NCL Composer 0.1.7 released

Release 0.1.7 of NCL Composer is out. This new release is a bug fix release. Thus, you will not find a lot of new features, but mainly improved ones.

This version is also a preparation for the next major version 0.2.0, when we will fully support Qt 5.0. Currently, you are able to build the source code with Qt 4.8 or Qt 5.x. However, our currently release binaries is still based on Qt 4.8.

The main issues included in this version are:

  • Bug #622: Link description in WelcomeWidget “Part 8 - NCL Live Editing Commands” should be “Part 9 - NCL Live Editing Commands”
  • Bug #630: Size of properties and outline views are too big for some resolutions.
  • Feature #625: Add build date to About Dialog.
  • Bug #624: Validator: moveUp, moveDown etc. are showing error messages even in correct cases.
  • Bug #631: Structural: When a new connector is add, the structural view does not show the related parameters.
  • Bug #632: Structural: Invalid reference for a connectorParam crash NCL Composer.
  • Feature #468: Structural: Refactory of structural → Remove QnstEntity class.
  • Feature #469: Structural: Refactory of structural → Remove duplicated information between QnstGraphicsEntity and QnstEntity.
  • Feature #626: Layout: Add option to create a new regionBase in dropdown menu to select regionBase.
  • Feature #629: Structural: Add icon to sbtvd:, isdb-ts:, ts: etc. media objects.

Find out more in our Download Section and if you find any problem, please contact us!

NCL Composer 0.1.6 released

Release 0.1.6 of NCL Composer is out. This release mainly includes improvements in the layout view (including a new toolbar) and structural view (including a new minimap for navigation), and also a lot of bug fixes. The main issues included in this version are:

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