support setting album art codec in transcode configs, set to png for g726 in mkv

src/utils/transcoder/presets/g726.rs

@@ -14,6 +14,7 @@ pub fn add_presets(preset_categories: &mut Vec<PresetCategory>) {
 				sample_rate: Some("8000".to_string()),
 				channels: Some("1".to_string()),
 				bitrate: Some(format!("{}k", bitrate).to_string()),
+				album_art_codec: Some("h264".to_string()),
 				..TranscodeConfig::default()
 			},
 		})

src/utils/transcoder/progress_monitor.rs

@@ -102,7 +102,13 @@ pub fn progress_monitor(
 
 			match res.kind {
 				EventKind::Modify(_) => {
-					let mut file = fs::File::open(&file_path).unwrap();
+					let file = fs::File::open(&file_path);
+					let mut file = match file {
+						Ok(f) => f,
+						Err(_e) => {
+							break 'outer;
+						}
+					};
 					file.seek(SeekFrom::Start(pos)).unwrap();
 
 					pos = file.metadata().unwrap().len();

src/utils/transcoder/transcoder.rs

@@ -43,6 +43,27 @@ pub fn transcode(
 		command_args.extend(vec!["-b:a".to_string(), bitrate.to_string()]);
 	}
 
+	if let Some(album_art_codec) = &config.album_art_codec {
+		println!("{}", album_art_codec);
+		command_args.extend(vec!["-c:v".to_string(), album_art_codec.to_string()]);
+
+		if config.album_art_height.is_some() && config.album_art_width.is_some() {
+			let mut height: i16 = config.album_art_height.unwrap() as i16;
+			if height == 0 {
+				height = -1;
+			}
+
+			let mut width = config.album_art_width.unwrap() as i16;
+			if width == 0 {
+				width = -1;
+			}
+
+			command_args.extend(vec!["-vf".to_string(), format!("scale={}:{}", width, height)]);
+			println!("{:#?}", command_args);
+		}
+
+	}
+
 	command_args.push(dest);
 
 	let mut progress_thread: Option<JoinHandle<()>> = None;
@@ -72,7 +93,7 @@ pub fn transcode(
 	}
 
 	if let Some(thread) = progress_thread {
-		fs::remove_file(progress_file.unwrap())?;
+		let _ = fs::remove_file(progress_file.unwrap());
 		thread.join().expect("thread couldn't join");
 	}
 

src/utils/transcoder/types.rs

@@ -24,6 +24,9 @@ pub struct TranscodeConfig {
 	pub quality: Option<String>,
 	pub sample_rate: Option<String>,
 	pub channels: Option<String>,
+	pub album_art_codec: Option<String>,
+	pub album_art_height: Option<u16>,
+	pub album_art_width: Option<u16>,
 }
 
 impl TranscodeConfig {