validate config regex

ffplayout-engine/src/utils/mod.rs

@@ -152,11 +152,8 @@ pub fn prepare_output_cmd(
     let re_multi = Regex::new(r"\[[\w:_-]+\]\[[\w:_-]+\]").unwrap();
 
     if let Some(mut filter) = filters.clone() {
-        // Loop over output parameters
-        //
-        // Check if it contains a filtergraph, count its outputs and set correct mapping values.
+        // Check if it contains a filtergraph and set correct output mapping.
         for (i, param) in output_params.iter().enumerate() {
-            // Skip filter command, to concat existing filters with new ones.
             if param != "-filter_complex" {
                 if i > 0 && output_params[i - 1] == "-filter_complex" {
                     output_filter = param.clone();

lib/src/filter/v_drawtext.rs

@@ -1,4 +1,5 @@
 use std::{
+    ffi::OsStr,
     path::Path,
     sync::{Arc, Mutex},
 };
@@ -27,11 +28,16 @@ pub fn filter_node(
     // TODO: in Rust 1.65 use let_chains instead
     if config.text.text_from_filename && node.is_some() {
         let source = node.unwrap_or(&Media::new(0, "", false)).source.clone();
-        let regex: Regex = Regex::new(&config.text.regex).unwrap();
-
-        let text: String = match regex.captures(&source) {
+        let text = match Regex::new(&config.text.regex)
+            .ok()
+            .and_then(|r| r.captures(&source))
+        {
             Some(t) => t[1].to_string(),
-            None => source,
+            None => Path::new(&source)
+                .file_stem()
+                .unwrap_or_else(|| OsStr::new(&source))
+                .to_string_lossy()
+                .to_string(),
         };
 
         let escape = text