Enum DVDTitleAppMode

Namespace

VisioForge.Core.Types.MediaInfo

Assembly

VisioForge.Core.dll

Specifies the application mode or special features enabled for a DVD title.

public enum DVDTitleAppMode

Fields

NotSpecified = 0

The title has no special application mode specified.

This is the default mode for standard DVD video titles. The title contains regular video content without any special interactive features or processing requirements. Most commercial movies and TV shows use this mode.

In NotSpecified mode: - Standard audio tracks play without modification - Subpictures display as normal subtitles or overlays - No special UI elements are required - Standard DVD navigation commands apply

Karaoke = 1

The title is authored for karaoke applications with special audio and subtitle features.

Karaoke mode indicates that the DVD title contains karaoke content with special features: - Multiple audio channels (typically 5: L, R, melody, vocal 1, vocal 2) - Synchronized lyrics displayed through subpicture streams - Channel mixing capabilities to remove or adjust vocals - Optional scoring and pitch detection features

DVD karaoke titles often include: - Multiplex audio allowing users to toggle lead vocals on/off - Guide melodies on separate channels - Colored or highlighted lyrics synchronized to the music - Multiple language versions of the same songs - Special effects like echo or reverb settings

Players detecting karaoke mode should: - Enable audio channel mixing controls - Ensure proper subpicture timing for lyrics - Display karaoke-specific UI elements - Support special karaoke navigation features

Other = 3

The title uses a special application mode other than karaoke.

Other application modes may include: - Educational content with interactive quizzes - Gaming features with DVD-based games - Special audio modes (like DVD-Audio compatibility) - Custom interactive applications - Specialized content like music video compilations with enhanced features

When Other mode is specified, the DVD player should: - Check for additional metadata about the specific application type - Be prepared to handle non-standard navigation commands - Support any special features indicated in the disc's capability flags - Potentially load custom UI elements or processing modules

The specific behavior for Other mode depends on additional information provided in the DVD's IFO files and may require player-specific support for proprietary features.

Remarks

DVD titles can be authored with special application modes that enable enhanced interactive features beyond standard video playback. The most common special mode is karaoke, which provides synchronized lyrics display and often includes features for vocal removal or scoring.

The application mode affects how the DVD player processes and presents the content: - Audio channel mixing for karaoke (removing or lowering vocal tracks) - Special subpicture handling for synchronized lyrics - Interactive features like scoring or pitch detection - Modified menu systems optimized for the application type

Understanding the application mode is important for DVD players to: - Enable appropriate audio processing features - Display correct UI elements for the mode - Handle special navigation commands - Process mode-specific data tracks