using System;

namespace Matroska.Models;

/// <summary>
/// http://matroska.sourceforge.net/technical/specs/index.html#simpleblock_structure
/// </summary>
public sealed class SimpleBlock : Block
{
	private const byte KeyFrameBit = 0b10000000;
	private const byte DiscardableBit = 0b00000001;
	/// <summary>
	/// Keyframe, set when the Block contains only keyframes
	/// </summary>
	public bool IsKeyFrame { get; private set; }

	/// <summary>
	/// Discardable, the frames of the Block can be discarded during playing if needed
	/// </summary>
	public bool IsDiscardable { get; private set; }

	public override void Parse(Span<byte> span)
	{
		base.Parse(span);

		IsKeyFrame = (Flags & KeyFrameBit) == KeyFrameBit;
		IsDiscardable = (Flags & DiscardableBit) == DiscardableBit;
	}
}