Этап 2

Minint.Core/Services/IGifExporter.cs

@@ -0,0 +1,13 @@
+namespace Minint.Core.Services;
+
+public interface IGifExporter
+{
+    /// <summary>
+    /// Exports multiple frames as an animated GIF.
+    /// </summary>
+    /// <param name="stream">Output stream.</param>
+    /// <param name="frames">Sequence of (ARGB pixels, delay in ms) per frame.</param>
+    /// <param name="width">Frame width.</param>
+    /// <param name="height">Frame height.</param>
+    void Export(Stream stream, IReadOnlyList<(uint[] Pixels, uint DelayMs)> frames, int width, int height);
+}