Added include and exclude source arguments. Improved stream fetch failure handling and improved logging details.

src/save/save.js

@@ -4,7 +4,7 @@ const fs = require('fs-extra');
 const path = require('path');
 const ffmpeg = require('fluent-ffmpeg');
 
-function save(filepath, streams, item) {
+function save(filepath, streams, item, post) {
     const pathComponents = path.parse(filepath);
 
     // allow for single stream argument