check if output is paused before attempting record split/chapter.

add note to changelog about supported file format for record chapter.

CHANGELOG.md

@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added
 
 -   record split and record chapter commands, see [RecordCmd](https://github.com/onyx-and-iris/gobs-cli?tab=readme-ov-file#recordcmd)
+    -   As of OBS 30.2.0, the only file format supporting *record chapter* is Hybrid MP4.
 
 # [0.12.1] - 2025-06-21
 

record.go

@@ -204,6 +204,9 @@ func (cmd *RecordSplitCmd) Run(ctx *context) error {
 	if !status.OutputActive {
 		return fmt.Errorf("recording is not in progress")
 	}
+	if status.OutputPaused {
+		return fmt.Errorf("recording is paused, cannot split")
+	}
 
 	_, err = ctx.Client.Record.SplitRecordFile()
 	if err != nil {
@@ -229,6 +232,9 @@ func (cmd *RecordChapterCmd) Run(ctx *context) error {
 	if !status.OutputActive {
 		return fmt.Errorf("recording is not in progress")
 	}
+	if status.OutputPaused {
+		return fmt.Errorf("recording is paused, cannot create chapter")
+	}
 
 	var params *record.CreateRecordChapterParams
 	if cmd.ChapterName == "" {