feat: add audio only option

frontend/EnqueueTask.hx

@@ -5,11 +5,13 @@ class EnqueueTask {
     var url:String;
     var outname:Null<String>;
     var prepend:Bool;
+    var audio_only:Bool;
 
-    public function new(url:String, outname:Null<String>, prepend:Bool) {
+    public function new(url:String, outname:Null<String>, prepend:Bool, audio_only:Bool) {
         this.url = url;
         this.outname = outname;
         this.prepend = prepend;
+        this.audio_only = audio_only;
     }
 
     public function send():Void {

frontend/Index.hx

@@ -27,7 +27,6 @@ function onEnqSubmit(e:Dynamic):Void {
     e.preventDefault();
 
     var url_inp = cast(Browser.document.getElementById("url_inp"), InputElement);
-
     var outname = cast(Browser.document.getElementById("outname_inp"), InputElement).value;
 
     if (url_inp.value.length == 0) {
@@ -38,7 +37,8 @@ function onEnqSubmit(e:Dynamic):Void {
     new EnqueueTask(
         url_inp.value,
         outname.length == 0 ? null : outname,
-        cast(Browser.document.getElementById("prepend_switch"), InputElement).checked
+        cast(Browser.document.getElementById("prepend_switch"), InputElement).checked,
+        cast(Browser.document.getElementById("audio_only_switch"), InputElement).checked
     ).send();
 
     url_inp.value = "";

src/DownloadQueue.zig

@@ -5,6 +5,7 @@ const State = @import("State.zig");
 pub const Task = struct {
     url: []const u8,
     outname: ?[]const u8,
+    audio_only: bool,
 };
 
 state: *State,
@@ -40,6 +41,7 @@ pub fn pushTask(self: *DownloadQueue, task: Task, prepend: bool) !void {
         .outname = blk: {
             break :blk try std.heap.c_allocator.dupe(u8, task.outname orelse break :blk null);
         },
+        .audio_only = task.audio_only,
     } };
 
     self.m.lock();
@@ -105,6 +107,10 @@ fn next(self: *DownloadQueue) !void {
     try argv.append("--format");
     try argv.append("bestvideo[height<=1080]+bestaudio/best[height<=1080]");
 
+    if (task.audio_only) {
+        try argv.append("--extract-audio");
+    }
+
     var outfile_buf: [512]u8 = undefined;
     if (task.outname) |outname| {
         try argv.append("--output");

src/assets/index.css

@@ -64,3 +64,7 @@ button.vid_del_btn:hover {
 ul {
     list-style-type: square;
 }
+
+.audio_only_txt {
+    color: #ff5555;
+}

src/routes.zig

@@ -9,6 +9,10 @@ const inferred_html =
     \\<span class="gray">&lt;inferred&gt;</span>
 ;
 
+const audio_only_prefix_html =
+    \\<span class="audio_only_txt">Audio Only </span>
+;
+
 pub fn routeCb(comptime routeFn: anytype, comptime has_state: bool) *anyopaque {
     return @intToPtr(*anyopaque, @ptrToInt(&struct {
         fn f(
@@ -81,10 +85,14 @@ pub fn indexRoute(
 
         if (state.downloads.active_task) |active| {
             try w.print(
-                \\<p>Active task: <b>{s}</b> -> <b>{s}</b></p>
+                \\<p>Active task: <b>{s}{s}</b> -> <b>{s}</b></p>
                 \\<hr>
             ,
-                .{ active.url, active.outname orelse inferred_html },
+                .{
+                    if (active.audio_only) audio_only_prefix_html else "",
+                    active.url,
+                    active.outname orelse inferred_html,
+                },
             );
         }
 
@@ -94,14 +102,18 @@ pub fn indexRoute(
             );
 
             var task = state.downloads.tasks.last;
-            while (task != null) {
+            while (task) |t| {
                 try w.print(
-                    \\<tr><td>{s}</td><td>{s}</td></tr>
+                    \\<tr><td>{s}{s}</td><td>{s}</td></tr>
                 ,
-                    .{ task.?.data.url, task.?.data.outname orelse inferred_html },
+                    .{
+                        if (t.data.audio_only) audio_only_prefix_html else "",
+                        t.data.url,
+                        t.data.outname orelse inferred_html,
+                    },
                 );
 
-                task = task.?.prev;
+                task = t.prev;
             }
 
             try w.writeAll(
@@ -122,6 +134,7 @@ pub fn indexRoute(
         \\  <input type="text" placeholder="URL" id="url_inp"><br>
         \\  <input type="text" placeholder="output name" id="outname_inp"><br>
         \\  <input type="checkbox" id="prepend_switch">Prepend<br>
+        \\  <input type="checkbox" id="audio_only_switch">Audio Only<br>
         \\  <input type="submit" id="enqueue_btn" value="Enqueue">
         \\</form>
         \\<button id="pause_btn"></button>
@@ -227,6 +240,8 @@ pub fn indexJsonRoute(
 pub const ApiTask = struct {
     url: []const u8,
     outname: ?[]const u8,
+    audio_only: bool = false,
+
     prepend: bool = false,
 };
 
@@ -267,7 +282,7 @@ pub fn vidsRoute(
 
             std.log.info("adding {s} to queue", .{task.url});
             try state.downloads.pushTask(
-                .{ .url = task.url, .outname = task.outname },
+                .{ .url = task.url, .outname = task.outname, .audio_only = task.audio_only },
                 task.prepend,
             );