bugfixes

backend/chaturbate_autostart.go

@@ -239,6 +239,39 @@ func chaturbateAbortIfNoOutput(jobID string, maxWait time.Duration, onOutput fun
 	out := strings.TrimSpace(job.Output)
 	wasVisible := !job.Hidden
 
+	// Sichtbare Jobs nicht endlos als "running" stehen lassen,
+	// wenn nach outputProbeMax keine Datei entstanden ist.
+	if wasVisible {
+		if recordCancel != nil {
+			recordCancel()
+		}
+
+		now := time.Now()
+
+		job.Status = JobFailed
+		job.EndedAt = &now
+		job.EndedAtMs = now.UnixMilli()
+		job.Phase = ""
+		job.Progress = 100
+		job.Error = "Kein Output nach Start – ffmpeg konnte keine Datei schreiben"
+		job.PostWorkKey = ""
+		job.PostWork = nil
+
+		jobsMu.Unlock()
+
+		if verboseLogs() {
+			appLogln("❌ [autostart] no output after probe; marking failed:", jobID)
+		}
+
+		_ = publishJobSnapshot(jobID)
+
+		if onNoOutput != nil {
+			onNoOutput()
+		}
+
+		return
+	}
+
 	jobsMu.Unlock()
 
 	if previewCancel != nil {
@@ -290,12 +323,15 @@ func startChaturbateAutoStartWorker(store *ModelStore) {
 	const retryCooldown = 25 * time.Second
 
 	// wie lange wir warten, ob eine echte Datei entsteht
-	const outputProbeMax = 20 * time.Second
+	const outputProbeMax = 60 * time.Second
 
 	queue := make([]autoStartItem, 0, 64)
 	queued := map[string]bool{}
 	lastTry := map[string]time.Time{}
 
+	// verhindert Stop/Resume-Flackern bei kurzen API-Statuswechseln
+	nonPublicSince := map[string]time.Time{}
+
 	scanTicker := time.NewTicker(scanInterval)
 	startTicker := time.NewTicker(startInterval)
 	defer scanTicker.Stop()
@@ -573,6 +609,18 @@ func startChaturbateAutoStartWorker(store *ModelStore) {
 
 				show := chaturbateShowFromSnapshot(showByUser, user)
 				if show != "private" && show != "hidden" && show != "away" {
+					delete(nonPublicSince, user)
+					continue
+				}
+
+				firstSeen, ok := nonPublicSince[user]
+				if !ok {
+					nonPublicSince[user] = now
+					continue
+				}
+
+				// Nicht sofort stoppen. CB/API kann kurz flackern.
+				if now.Sub(firstSeen) < 30*time.Second {
 					continue
 				}
 

backend/main.go

@@ -195,6 +195,50 @@ func publishJobUpsertSnapshot(s jobEventSnapshot) {
 	}
 }
 
+func publishJobSnapshot(jobID string) bool {
+	jobsMu.RLock()
+	job := jobs[jobID]
+	if job == nil {
+		jobsMu.RUnlock()
+		return false
+	}
+
+	var endedAtCopy *time.Time
+	if job.EndedAt != nil {
+		t := *job.EndedAt
+		endedAtCopy = &t
+	}
+
+	var pw *PostWorkKeyStatus
+	if job.PostWork != nil {
+		tmp := *job.PostWork
+		pw = &tmp
+	}
+
+	snap := jobEventSnapshot{
+		ID:              job.ID,
+		SourceURL:       job.SourceURL,
+		Output:          job.Output,
+		Status:          job.Status,
+		StartedAt:       job.StartedAt,
+		StartedAtMs:     job.StartedAtMs,
+		EndedAt:         endedAtCopy,
+		EndedAtMs:       job.EndedAtMs,
+		Error:           job.Error,
+		Phase:           job.Phase,
+		Progress:        job.Progress,
+		SizeBytes:       job.SizeBytes,
+		DurationSeconds: job.DurationSeconds,
+		PreviewState:    job.PreviewState,
+		PostWorkKey:     job.PostWorkKey,
+		PostWork:        pw,
+	}
+	jobsMu.RUnlock()
+
+	publishJobUpsertSnapshot(snap)
+	return true
+}
+
 func jobMatchesModelKey(j *RecordJob, modelKey string) bool {
 	if j == nil {
 		return false

backend/record_stream_cb.go

@@ -188,7 +188,7 @@ func RecordStream(
 
 	updatePreviewFromStream(stream)
 
-	const maxPlaylistRefreshes = 12
+	const maxPlaylistRefreshes = 30
 	refreshes := 0
 	attempt := 0
 	useChunkMerge := strings.EqualFold(filepath.Ext(outputPath), ".ts")
@@ -208,12 +208,21 @@ func RecordStream(
 			mergeAfterRun = true
 		}
 
-		err = handleM3U8Mode(ctx, stream, attemptOut, job, httpCookie, hc.userAgent, pageURL)
+		err = recordHLSPlaylistSegments(ctx, stream, attemptOut, job, httpCookie, hc.userAgent, pageURL)
 
 		if mergeAfterRun && fileExistsNonEmpty(attemptOut) {
 			if aerr := appendFileAndRemove(outputPath, attemptOut); aerr != nil {
 				return appErrorf("retry-chunk merge failed: %w", aerr)
 			}
+
+			if job != nil {
+				if fi, statErr := os.Stat(outputPath); statErr == nil && fi != nil && !fi.IsDir() {
+					jobsMu.Lock()
+					job.SizeBytes = fi.Size()
+					jobsMu.Unlock()
+					_ = publishJobSnapshot(job.ID)
+				}
+			}
 		}
 
 		if err == nil {

backend/record_stream_hls.go

@@ -405,6 +405,416 @@ func appendFileAndRemove(dstPath, srcPath string) error {
 	return nil
 }
 
+func hlsAttrValue(line string, key string) string {
+	line = strings.TrimSpace(line)
+	key = strings.TrimSpace(key)
+	if line == "" || key == "" {
+		return ""
+	}
+
+	needle := key + "="
+	idx := strings.Index(line, needle)
+	if idx < 0 {
+		return ""
+	}
+
+	rest := strings.TrimSpace(line[idx+len(needle):])
+	if rest == "" {
+		return ""
+	}
+
+	if strings.HasPrefix(rest, `"`) {
+		rest = rest[1:]
+		end := strings.IndexByte(rest, '"')
+		if end < 0 {
+			return strings.TrimSpace(rest)
+		}
+		return strings.TrimSpace(rest[:end])
+	}
+
+	if comma := strings.IndexByte(rest, ','); comma >= 0 {
+		rest = rest[:comma]
+	}
+
+	return strings.Trim(strings.TrimSpace(rest), `"`)
+}
+
+func hlsExtXMapURI(playlistText string) string {
+	for _, line := range strings.Split(playlistText, "\n") {
+		line = strings.TrimSpace(line)
+		if strings.HasPrefix(line, "#EXT-X-MAP:") {
+			return hlsAttrValue(line, "URI")
+		}
+	}
+	return ""
+}
+
+func hlsPartURIsFromText(playlistText string) []string {
+	out := make([]string, 0, 16)
+
+	for _, line := range strings.Split(playlistText, "\n") {
+		line = strings.TrimSpace(line)
+		if !strings.HasPrefix(line, "#EXT-X-PART:") {
+			continue
+		}
+
+		uri := hlsAttrValue(line, "URI")
+		if uri != "" {
+			out = append(out, uri)
+		}
+	}
+
+	return out
+}
+
+func hlsMediaSegmentURIsFromText(playlistText string) []string {
+	out := make([]string, 0, 16)
+
+	for _, line := range strings.Split(playlistText, "\n") {
+		line = strings.TrimSpace(line)
+		if line == "" {
+			continue
+		}
+		if strings.HasPrefix(line, "#") {
+			continue
+		}
+
+		out = append(out, line)
+	}
+
+	return out
+}
+
+func hlsRefreshDelay(playlistText string) time.Duration {
+	for _, line := range strings.Split(playlistText, "\n") {
+		line = strings.TrimSpace(line)
+
+		if strings.HasPrefix(line, "#EXT-X-PART-INF:") {
+			raw := hlsAttrValue(line, "PART-TARGET")
+			if f, err := strconv.ParseFloat(raw, 64); err == nil && f > 0 {
+				d := time.Duration(f * float64(time.Second))
+				if d < 500*time.Millisecond {
+					d = 500 * time.Millisecond
+				}
+				if d > 2*time.Second {
+					d = 2 * time.Second
+				}
+				return d
+			}
+		}
+
+		if strings.HasPrefix(line, "#EXT-X-TARGETDURATION:") {
+			raw := strings.TrimSpace(strings.TrimPrefix(line, "#EXT-X-TARGETDURATION:"))
+			if f, err := strconv.ParseFloat(raw, 64); err == nil && f > 0 {
+				d := time.Duration(f * float64(time.Second))
+				if d < 1*time.Second {
+					d = 1 * time.Second
+				}
+				if d > 3*time.Second {
+					d = 3 * time.Second
+				}
+				return d
+			}
+		}
+	}
+
+	return 1 * time.Second
+}
+
+func hlsResolveURI(baseRaw string, refRaw string) (string, error) {
+	baseRaw = strings.TrimSpace(baseRaw)
+	refRaw = strings.TrimSpace(refRaw)
+
+	if refRaw == "" {
+		return "", appErrorf("empty hls uri")
+	}
+
+	ref, err := url.Parse(refRaw)
+	if err != nil {
+		return "", err
+	}
+	if ref.IsAbs() {
+		return ref.String(), nil
+	}
+
+	base, err := url.Parse(baseRaw)
+	if err != nil {
+		return "", err
+	}
+
+	return base.ResolveReference(ref).String(), nil
+}
+
+func hlsGetBytesWithHeaders(
+	ctx context.Context,
+	rawURL string,
+	httpCookie string,
+	userAgent string,
+	referer string,
+) ([]byte, error) {
+	rawURL = strings.TrimSpace(rawURL)
+	if rawURL == "" {
+		return nil, appErrorf("empty hls url")
+	}
+
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, rawURL, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	if strings.TrimSpace(userAgent) != "" {
+		req.Header.Set("User-Agent", strings.TrimSpace(userAgent))
+	}
+	if strings.TrimSpace(httpCookie) != "" {
+		req.Header.Set("Cookie", strings.TrimSpace(httpCookie))
+	}
+	if strings.TrimSpace(referer) != "" {
+		ref := strings.TrimSpace(referer)
+		req.Header.Set("Referer", ref)
+
+		if ru, err := url.Parse(ref); err == nil && ru != nil && ru.Scheme != "" && ru.Host != "" {
+			req.Header.Set("Origin", ru.Scheme+"://"+ru.Host)
+		}
+	}
+
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, appErrorf("HTTP %d: %s", resp.StatusCode, rawURL)
+	}
+
+	return io.ReadAll(resp.Body)
+}
+
+func hlsGetBytesWithHeadersRetry(
+	ctx context.Context,
+	rawURL string,
+	httpCookie string,
+	userAgent string,
+	referer string,
+	attempts int,
+) ([]byte, error) {
+	if attempts < 1 {
+		attempts = 1
+	}
+
+	var lastErr error
+
+	for i := 1; i <= attempts; i++ {
+		b, err := hlsGetBytesWithHeaders(ctx, rawURL, httpCookie, userAgent, referer)
+		if err == nil {
+			return b, nil
+		}
+
+		lastErr = err
+
+		if ctx.Err() != nil {
+			return nil, ctx.Err()
+		}
+
+		if i < attempts {
+			select {
+			case <-ctx.Done():
+				return nil, ctx.Err()
+			case <-time.After(600 * time.Millisecond):
+			}
+		}
+	}
+
+	return nil, lastErr
+}
+
+func writeStreamBytesAndPublish(f *os.File, job *RecordJob, b []byte) error {
+	if len(b) == 0 {
+		return nil
+	}
+
+	if _, err := f.Write(b); err != nil {
+		return err
+	}
+
+	if job != nil {
+		if fi, err := f.Stat(); err == nil && fi != nil && !fi.IsDir() {
+			jobsMu.Lock()
+			job.SizeBytes = fi.Size()
+			jobsMu.Unlock()
+
+			_ = publishJobSnapshot(job.ID)
+		}
+	}
+
+	return nil
+}
+
+func streamLogPrefix(job *RecordJob, referer string, outFile string) string {
+	if s := strings.TrimSpace(hlsErrorModelName(job, referer)); s != "" {
+		return "[" + s + "]"
+	}
+
+	outFile = strings.TrimSpace(outFile)
+	if outFile != "" {
+		stem := strings.TrimSuffix(filepath.Base(outFile), filepath.Ext(outFile))
+		stem = stripHotPrefix(stem)
+
+		if s := strings.TrimSpace(modelNameFromFilename(stem)); s != "" {
+			return "[" + s + "]"
+		}
+		if s := strings.TrimSpace(canonicalAssetIDFromName(stem)); s != "" {
+			return "[" + s + "]"
+		}
+	}
+
+	return "[stream]"
+}
+
+func recordHLSPlaylistSegments(
+	ctx context.Context,
+	stream *selectedHLSStream,
+	outFile string,
+	job *RecordJob,
+	httpCookie string,
+	userAgent string,
+	referer string,
+) error {
+	if stream == nil {
+		return errors.New("stream config nil")
+	}
+
+	logPrefix := streamLogPrefix(job, referer, outFile)
+
+	mediaURL := strings.TrimSpace(stream.VideoURL)
+	if mediaURL == "" {
+		return appErrorf("%s media playlist url empty", logPrefix)
+	}
+
+	outFile = strings.TrimSpace(outFile)
+	if outFile == "" {
+		return appErrorf("%s output path empty", logPrefix)
+	}
+
+	if err := os.MkdirAll(filepath.Dir(outFile), 0o755); err != nil {
+		return appErrorf("%s mkdir failed: %w", logPrefix, err)
+	}
+
+	f, err := os.OpenFile(outFile, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0o644)
+	if err != nil {
+		return appErrorf("%s open output failed: %w", logPrefix, err)
+	}
+	defer f.Close()
+
+	seen := map[string]struct{}{}
+	writtenMaps := map[string]struct{}{}
+
+	lastNewSegmentAt := time.Now()
+
+	if verboseLogs() {
+		appLogln("🎥", logPrefix, "recording media playlist:", mediaURL)
+	}
+
+	for {
+		if err := ctx.Err(); err != nil {
+			return err
+		}
+
+		body, err := hlsGetBytesWithHeaders(ctx, mediaURL, httpCookie, userAgent, referer)
+		if err != nil {
+			return appErrorf("%s get playlist: %w", logPrefix, err)
+		}
+
+		playlistText := string(body)
+
+		if strings.Contains(playlistText, "#EXT-X-STREAM-INF") {
+			return appErrorf("%s expected media playlist, got master playlist", logPrefix)
+		}
+
+		segmentURIs := hlsMediaSegmentURIsFromText(playlistText)
+
+		if len(segmentURIs) == 0 {
+			segmentURIs = hlsPartURIsFromText(playlistText)
+		}
+
+		wroteAny := false
+
+		if len(segmentURIs) > 0 {
+			mapURI := hlsExtXMapURI(playlistText)
+			if mapURI != "" {
+				mapURL, err := hlsResolveURI(mediaURL, mapURI)
+				if err != nil {
+					return appErrorf("%s resolve map uri: %w", logPrefix, err)
+				}
+
+				if _, ok := writtenMaps[mapURL]; !ok {
+					initBytes, err := hlsGetBytesWithHeadersRetry(ctx, mapURL, httpCookie, userAgent, referer, 3)
+					if err != nil {
+						appLogln("⚠️", logPrefix, "init segment failed:", err)
+
+						select {
+						case <-ctx.Done():
+							return ctx.Err()
+						case <-time.After(hlsRefreshDelay(playlistText)):
+						}
+
+						continue
+					}
+
+					if err := writeStreamBytesAndPublish(f, job, initBytes); err != nil {
+						return appErrorf("%s write init: %w", logPrefix, err)
+					}
+
+					writtenMaps[mapURL] = struct{}{}
+					wroteAny = true
+				}
+			}
+		}
+
+		for _, uri := range segmentURIs {
+			uri = strings.TrimSpace(uri)
+			if uri == "" {
+				continue
+			}
+
+			segmentURL, err := hlsResolveURI(mediaURL, uri)
+			if err != nil {
+				appLogln("⚠️", logPrefix, "resolve segment failed:", uri, err)
+				continue
+			}
+
+			if _, ok := seen[segmentURL]; ok {
+				continue
+			}
+
+			segBytes, err := hlsGetBytesWithHeadersRetry(ctx, segmentURL, httpCookie, userAgent, referer, 3)
+			if err != nil {
+				appLogln("⚠️", logPrefix, "segment failed:", filepath.Base(uri), err)
+				continue
+			}
+
+			if err := writeStreamBytesAndPublish(f, job, segBytes); err != nil {
+				return appErrorf("%s write segment: %w", logPrefix, err)
+			}
+
+			seen[segmentURL] = struct{}{}
+			wroteAny = true
+		}
+
+		if wroteAny {
+			lastNewSegmentAt = time.Now()
+		} else if time.Since(lastNewSegmentAt) > 75*time.Second {
+			return io.EOF
+		}
+
+		select {
+		case <-ctx.Done():
+			return ctx.Err()
+		case <-time.After(hlsRefreshDelay(playlistText)):
+		}
+	}
+}
+
 func isExitStatus(err error, code int) bool {
 	var exitErr *exec.ExitError
 	if errors.As(err, &exitErr) {
@@ -429,12 +839,30 @@ func handleM3U8Mode(
 	videoURL := strings.TrimSpace(stream.VideoURL)
 	audioURL := strings.TrimSpace(stream.AudioURL)
 
-	u, err := url.Parse(videoURL)
+	isChaturbate := strings.Contains(strings.ToLower(strings.TrimSpace(referer)), "chaturbate.com")
-	if err != nil || (u.Scheme != "http" && u.Scheme != "https") {
+
-		return appErrorf("ungültige video URL: %q", videoURL)
+	// Wichtig:
+	// Bei Chaturbate die MasterURL NICHT nochmal an ffmpeg geben.
+	// Die Master-Playlist wurde vorher schon in Go geöffnet/parst.
+	// Das erneute Öffnen der llhls.m3u8 führt bei dir häufig zu 403.
+	inputURL := videoURL
+	useSeparateAudioInput := false
+
+	if isChaturbate {
+		// Stabilitäts-Test:
+		// Chaturbate erstmal NICHT mit separatem Audio-Input öffnen.
+		// Wenn danach sofort .ts-Dateien entstehen, war der separate Audio-Input der Blocker.
+		useSeparateAudioInput = false
+	} else if stream.HasSeparateAudio && strings.TrimSpace(stream.MasterURL) != "" {
+		inputURL = strings.TrimSpace(stream.MasterURL)
 	}
 
-	if audioURL != "" {
+	u, err := url.Parse(inputURL)
+	if err != nil || (u.Scheme != "http" && u.Scheme != "https") {
+		return appErrorf("ungültige input URL: %q", inputURL)
+	}
+
+	if useSeparateAudioInput {
 		au, err := url.Parse(audioURL)
 		if err != nil || (au.Scheme != "http" && au.Scheme != "https") {
 			return appErrorf("ungültige audio URL: %q", audioURL)
@@ -471,15 +899,15 @@ func handleM3U8Mode(
 
 	appendInputOptions := func(args []string) []string {
 		args = append(args,
-			"-rw_timeout", "15000000",
+			// 30s statt 15s: CB/CDN hat gelegentlich kurze Hänger.
+			"-rw_timeout", "30000000",
 
-			// HLS-Segmente robuster laden:
-			// kurze Netzwerkhänger / einzelne kaputte Segment-Requests nicht sofort hart abbrechen.
 			"-reconnect", "1",
+			"-reconnect_at_eof", "1",
 			"-reconnect_streamed", "1",
 			"-reconnect_on_network_error", "1",
 			"-reconnect_on_http_error", "403,404,408,429,500,502,503,504",
-			"-reconnect_delay_max", "4",
+			"-reconnect_delay_max", "10",
 		)
 
 		if ua != "" {
@@ -497,7 +925,7 @@ func handleM3U8Mode(
 		return args
 	}
 
-	if audioURL != "" {
+	if useSeparateAudioInput {
 		args = appendInputOptions(args)
 		args = append(args, "-i", videoURL)
 
@@ -514,7 +942,7 @@ func handleM3U8Mode(
 	} else {
 		args = appendInputOptions(args)
 		args = append(args,
-			"-i", videoURL,
+			"-i", inputURL,
 			"-map", "0:v:0",
 			"-map", "0:a:0?",
 			"-dn",
@@ -574,7 +1002,7 @@ func handleM3U8Mode(
 						jobsMu.Unlock()
 
 						last = sz
-						_ = publishJob(job.ID)
+						_ = publishJobSnapshot(job.ID)
 					}
 				}
 			}
@@ -599,7 +1027,7 @@ func handleM3U8Mode(
 			jobsMu.Lock()
 			job.SizeBytes = fi.Size()
 			jobsMu.Unlock()
-			_ = publishJob(job.ID)
+			_ = publishJobSnapshot(job.ID)
 		}
 	}
 

backend/record_stream_mfc.go

@@ -30,7 +30,7 @@ func RecordStreamMFC(
 ) error {
 	mfc := NewMyFreeCams(username)
 
-	const waitPublicMax = 20 * time.Second
+	const waitPublicMax = 90 * time.Second
 	deadline := time.Now().Add(waitPublicMax)
 
 	for {
@@ -51,7 +51,7 @@ func RecordStreamMFC(
 	}
 
 	// ✅ erst jetzt die Video URL holen (weil public)
-	stream, err := mfc.GetSelectedStream(false)
+	stream, err := mfc.GetSelectedStream(ctx, false, hc.userAgent)
 	if err != nil {
 		return appErrorf("mfc get video url: %w", err)
 	}
@@ -134,7 +134,7 @@ func (m *MyFreeCams) GetVideoURL(refresh bool) (string, error) {
 	return m.VideoURL, nil
 }
 
-func (m *MyFreeCams) GetSelectedStream(refresh bool) (*selectedHLSStream, error) {
+func (m *MyFreeCams) GetSelectedStream(ctx context.Context, refresh bool, userAgent string) (*selectedHLSStream, error) {
 	m3u8URL, err := m.GetVideoURL(refresh)
 	if err != nil {
 		return nil, err
@@ -144,10 +144,10 @@ func (m *MyFreeCams) GetSelectedStream(refresh bool) (*selectedHLSStream, error)
 	}
 
 	return getWantedResolutionPlaylistWithHeaders(
-		context.Background(),
+		ctx,
 		m3u8URL,
 		"", // MFC normalerweise ohne Cookies
-		"", // optionaler UA, hier leer lassen oder später ergänzen
+		userAgent,
 		m.GetWebsiteURL(),
 	)
 }
@@ -243,7 +243,7 @@ func runMFC(ctx context.Context, username string, outArg string) error {
 		return appErrorf("Stream ist nicht live (Status: %s)", st)
 	}
 
-	stream, err := mfc.GetSelectedStream(false)
+	stream, err := mfc.GetSelectedStream(ctx, false, "")
 	if err != nil {
 		return err
 	}

backend/tasks_cleanup.go

@@ -24,9 +24,10 @@ type cleanupCandidate struct {
 }
 
 type cleanupResp struct {
-	// Small downloads cleanup
+	// Small / broken downloads cleanup
 	ScannedFiles       int    `json:"scannedFiles"`
 	DeletedFiles       int    `json:"deletedFiles"`
+	DeletedBrokenFiles int    `json:"deletedBrokenFiles"`
 	SkippedFiles       int    `json:"skippedFiles"`
 	DeletedBytes       int64  `json:"deletedBytes"`
 	DeletedBytesHuman  string `json:"deletedBytesHuman"`
@@ -233,7 +234,7 @@ func settingsCleanupHandler(w http.ResponseWriter, r *http.Request) {
 
 			finishCleanupJob(
 				jobID,
-				cleanupProgressText(resp.DeletedFiles, resp.ScannedFiles, resp.DeletedBytes),
+				cleanupProgressText(resp.DeletedFiles, resp.DeletedBrokenFiles, resp.ScannedFiles, resp.DeletedBytes),
 				nil,
 			)
 		}(jobID, ctx, doneAbs, mb)
@@ -265,7 +266,17 @@ func settingsCleanupHandler(w http.ResponseWriter, r *http.Request) {
 	}
 }
 
-func cleanupProgressText(deleted int, total int, freedBytes int64) string {
+func cleanupProgressText(deleted int, broken int, total int, freedBytes int64) string {
+	if broken > 0 {
+		return fmt.Sprintf(
+			"gelöscht: %d/%d · fehlerhaft: %d · freigegeben: %s",
+			deleted,
+			total,
+			broken,
+			formatBytesSI(freedBytes),
+		)
+	}
+
 	return fmt.Sprintf(
 		"gelöscht: %d/%d · freigegeben: %s",
 		deleted,
@@ -274,6 +285,58 @@ func cleanupProgressText(deleted int, total int, freedBytes int64) string {
 	)
 }
 
+func cleanupVideoLooksBroken(ctx context.Context, path string) (bool, string) {
+	path = strings.TrimSpace(path)
+	if path == "" {
+		return false, ""
+	}
+
+	ext := strings.ToLower(filepath.Ext(path))
+	if ext != ".mp4" && ext != ".ts" {
+		return false, ""
+	}
+
+	fi, err := os.Stat(path)
+	if err != nil || fi == nil || fi.IsDir() || fi.Size() <= 0 {
+		return true, "file missing/empty"
+	}
+
+	// Erst ffprobe/duration: wenn keine Dauer lesbar ist, ist die Datei meistens kaputt.
+	dctx, cancel := context.WithTimeout(ctx, 8*time.Second)
+	dur, derr := durationSecondsCached(dctx, path)
+	dctxErr := dctx.Err()
+	cancel()
+
+	if errors.Is(dctxErr, context.DeadlineExceeded) || errors.Is(dctxErr, context.Canceled) {
+		// Timeout beim Prüfen nicht als "kaputt" werten, um keine guten Dateien wegen Last zu löschen.
+		return false, "duration check timeout"
+	}
+
+	if derr != nil || dur <= 0 {
+		if derr != nil {
+			return true, "duration failed: " + derr.Error()
+		}
+		return true, "duration <= 0"
+	}
+
+	// Danach konservative Decode-Prüfung am Ende.
+	// Diese Funktion nutzt du bereits nach dem Remux in recorder.go.
+	vctx, vcancel := context.WithTimeout(ctx, 20*time.Second)
+	verr := validateVideoDecodesNearEnd(vctx, path)
+	vctxErr := vctx.Err()
+	vcancel()
+
+	if errors.Is(vctxErr, context.DeadlineExceeded) || errors.Is(vctxErr, context.Canceled) {
+		return false, "decode check timeout"
+	}
+
+	if verr != nil {
+		return true, "decode failed: " + verr.Error()
+	}
+
+	return false, ""
+}
+
 func cleanupSmallFiles(ctx context.Context, jobID string, doneAbs string, threshold int64, resp *cleanupResp) error {
 	isCandidate := func(name string) bool {
 		low := strings.ToLower(name)
@@ -377,7 +440,7 @@ func cleanupSmallFiles(ctx context.Context, jobID string, doneAbs string, thresh
 		st.Done = 0
 		st.Total = resp.ScannedFiles
 		st.CurrentFile = ""
-		st.Text = cleanupProgressText(resp.DeletedFiles, resp.ScannedFiles, resp.DeletedBytes)
+		st.Text = cleanupProgressText(resp.DeletedFiles, resp.DeletedBrokenFiles, resp.ScannedFiles, resp.DeletedBytes)
 		st.Error = ""
 		st.FinishedAt = nil
 	})
@@ -388,14 +451,34 @@ func cleanupSmallFiles(ctx context.Context, jobID string, doneAbs string, thresh
 			return ctx.Err()
 		default:
 		}
+		deleteReason := ""
+
 		if c.size < threshold {
+			deleteReason = "small"
+		} else {
+			broken, why := cleanupVideoLooksBroken(ctx, c.path)
+			if broken {
+				deleteReason = "broken"
+				appLogln("🧹 cleanup deleting broken video:", filepath.Base(c.path), why)
+			}
+		}
+
+		if deleteReason != "" {
 			base := strings.TrimSuffix(filepath.Base(c.path), filepath.Ext(c.path))
 			id := stripHotPrefix(base)
 
+			// Stoppt ggf. laufende Asset-/Enrich-Tasks für genau diese Datei,
+			// damit Windows-Dateihandles nicht blockieren.
+			releaseFileForMutation(c.name)
+
 			if derr := removeWithRetry(c.path); derr == nil || os.IsNotExist(derr) {
 				resp.DeletedFiles++
 				resp.DeletedBytes += c.size
 
+				if deleteReason == "broken" {
+					resp.DeletedBrokenFiles++
+				}
+
 				if strings.TrimSpace(id) != "" {
 					removeGeneratedForID(id)
 				}
@@ -414,8 +497,8 @@ func cleanupSmallFiles(ctx context.Context, jobID string, doneAbs string, thresh
 			}
 			st.Done = i + 1
 			st.Total = resp.ScannedFiles
-			st.CurrentFile = ""
+			st.CurrentFile = c.name
-			st.Text = cleanupProgressText(resp.DeletedFiles, resp.ScannedFiles, resp.DeletedBytes)
+			st.Text = cleanupProgressText(resp.DeletedFiles, resp.DeletedBrokenFiles, resp.ScannedFiles, resp.DeletedBytes)
 			st.Error = ""
 			st.FinishedAt = nil
 		})

frontend/src/components/ui/RecorderSettings.tsx

@@ -1103,6 +1103,7 @@ export default function RecorderSettings({ onAssetsGenerated }: Props) {
     const ok = window.confirm(
       `Aufräumen:\n` +
         `• Löscht Dateien in "${doneDir}" < ${mb} MB (Ordner "keep" wird übersprungen)\n` +
+        `• Löscht fehlerhafte/defekte MP4/TS-Dateien, wenn sie nicht lesbar sind\n` +
         `• Entfernt verwaiste Previews/Thumbs/Generated-Assets ohne passende Datei\n\n` +
         `Fortfahren?`
     )