wait for one segment by default (#617)

ErsatzTV.Application/FFmpegProfiles/Queries/GetFFmpegSettingsHandler.cs

@@ -46,7 +46,7 @@ namespace ErsatzTV.Application.FFmpegProfiles.Queries
                 PreferredLanguageCode = await preferredLanguageCode.IfNoneAsync("eng"),
                 HlsSegmenterIdleTimeout = await hlsSegmenterIdleTimeout.IfNoneAsync(60),
                 WorkAheadSegmenterLimit = await workAheadSegmenterLimit.IfNoneAsync(1),
-                InitialSegmentCount = await initialSegmentCount.IfNoneAsync(4)
+                InitialSegmentCount = await initialSegmentCount.IfNoneAsync(1)
             };
 
             foreach (int watermarkId in watermark)

ErsatzTV.Application/Streaming/Commands/StartFFmpegSessionHandler.cs

@@ -71,7 +71,7 @@ namespace ErsatzTV.Application.Streaming.Commands
 
             IConfigElementRepository repo = scope.ServiceProvider.GetRequiredService<IConfigElementRepository>();
             int initialSegmentCount = await repo.GetValue<int>(ConfigElementKey.FFmpegInitialSegmentCount)
-                .Map(maybeCount => maybeCount.Match(identity, () => 4));
+                .Map(maybeCount => maybeCount.Match(identity, () => 1));
 
             await WaitForPlaylistSegments(playlistFileName, initialSegmentCount, worker);