weee

internal/coverart/coverart.go

@@ -77,7 +77,11 @@ func (s *Store) ExtractEmbedded(ctx context.Context, mediaPath string, streamInd
 		"-map", fmt.Sprintf("0:%d", streamIndex),
 		"-frames:v", "1",
 		"-c:v", "copy",
-		"--", tmp.Name(),
+		// Temporary files deliberately have a neutral .img suffix. Tell
+		// ffmpeg which muxer to use instead of asking it to infer one from
+		// that suffix. ffmpeg does not accept `--` as an end-of-options
+		// marker, so including it here made every embedded-art request fail.
+		"-f", "image2", tmp.Name(),
 	)
 	if out, err := cmd.CombinedOutput(); err != nil {
 		os.Remove(tmp.Name())