gramps
881addb5b4
- IMediaFrameSource gains bool Looping. - MediaVideoSource ctor takes Func<IDecodeProcess> processFactory instead of a single IDecodeProcess: a System.Diagnostics.Process can't be re-Start()ed, so each loop pass creates a fresh decoder. Decode wrapped in do-while(Looping): restart on natural EOF instead of raising Completed. - Production wiring (MainViewModel media factory): passes the process factory AND FfmpegFrameRateProbe -- closes the slice-2b gap where production had no probe and therefore no pacing. - Tests: loop test (single frame re-emits across passes, Completed only when loop cleared); fakes updated for the new interface member. Media tests 12/12, build 0 warnings. Wiring Source.MediaIsLooping into the flag needs a manager-level per-path loop provider -> lands with the UI-picker (acquisition) slice. Derivative reference: looping media by restarting decode on EOF, standard in playback/overlay tooling (OBS media source repeat).
27 lines
1.0 KiB
C#
27 lines
1.0 KiB
C#
namespace ytLive.Services;
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/// <summary>
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/// TASK 21: a media file decoder exposed to <see cref="MediaVideoSourceManager"/>.
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/// Mirrors <c>IScreenCaptureSource</c>/<c>ICameraFrameSource</c> so the manager
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/// (and tests) treat a local video file like any other frame source: start/stop
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/// and a per-frame <see cref="FrameAvailable"/> event consumers coalesce.
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/// </summary>
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public interface IMediaFrameSource : IDisposable
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{
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string Key { get; }
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/// <summary>When true, the decoder restarts from the beginning on natural EOF
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/// instead of raising <see cref="Completed"/> (used for BRB/starting-soon loops).</summary>
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bool Looping { get; set; }
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/// <summary>Raised (on a worker thread) for each decoded frame.</summary>
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event Action<VideoFrame>? FrameAvailable;
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/// <summary>Raised when the file finishes decoding (natural EOF) — not raised
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/// while <see cref="Looping"/> is true.</summary>
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event Action? Completed;
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Task StartAsync(CancellationToken cancellationToken = default);
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Task StopAsync();
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}
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