Added a module to coalesce adjacent same-speaker segments

internal/builtin/postprocess.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 
 	"gitea.maximumdirect.net/eric/seriatim/internal/autocorrect"
+	"gitea.maximumdirect.net/eric/seriatim/internal/coalesce"
 	"gitea.maximumdirect.net/eric/seriatim/internal/config"
 	"gitea.maximumdirect.net/eric/seriatim/internal/model"
 	"gitea.maximumdirect.net/eric/seriatim/internal/overlap"
@@ -77,7 +78,7 @@ func (resolveOverlaps) Process(ctx context.Context, in model.MergedTranscript, c
 		return model.MergedTranscript{}, nil, err
 	}
 
-	resolved, summary, err := overlap.Resolve(in, cfg.OverlapWordRunGap)
+	resolved, summary, err := overlap.Resolve(in, cfg.OverlapWordRunGap, cfg.WordRunReorderWindow)
 	if err != nil {
 		return model.MergedTranscript{}, nil, err
 	}
@@ -97,6 +98,27 @@ func (resolveOverlaps) Process(ctx context.Context, in model.MergedTranscript, c
 	}, nil
 }
 
+type coalescePostprocessor struct{}
+
+func (coalescePostprocessor) Name() string {
+	return "coalesce"
+}
+
+func (coalescePostprocessor) Process(ctx context.Context, in model.MergedTranscript, cfg config.Config) (model.MergedTranscript, []report.Event, error) {
+	if err := ctx.Err(); err != nil {
+		return model.MergedTranscript{}, nil, err
+	}
+
+	out, summary := coalesce.Apply(in, cfg.CoalesceGap)
+	return out, []report.Event{
+		report.Info(
+			"postprocessing",
+			"coalesce",
+			fmt.Sprintf("merged %d original segment(s) into %d coalesced segment(s)", summary.OriginalSegmentsMerged, summary.CoalescedSegments),
+		),
+	}, nil
+}
+
 type autocorrectPostprocessor struct{}
 
 func (autocorrectPostprocessor) Name() string {

internal/builtin/registry.go

@@ -13,6 +13,7 @@ func NewRegistry() *pipeline.Registry {
 	registry.RegisterMerger(placeholderMerger{})
 	registry.RegisterPostprocessor(detectOverlaps{})
 	registry.RegisterPostprocessor(resolveOverlaps{})
+	registry.RegisterPostprocessor(coalescePostprocessor{})
 	registry.RegisterPostprocessor(assignIDs{})
 	registry.RegisterPostprocessor(noopPostprocessor{name: "validate-output"})
 	registry.RegisterPostprocessor(autocorrectPostprocessor{})