HLS video playback (#182)

* HLS video playback Signed-off-by: Adrian Lebioda <adrianlebioda@gmail.com> * Add LibreJS compliance * Locally host hls.js * Notification about HLS under videos that support it Signed-off-by: Adrian Lebioda <adrianlebioda@gmail.com> * Use .contains() instead of .find() == None * Make list of preferences constant * Change headers_keys from Vector into Array * Fix incorrect detecting of # in paths * Remove trailing-slash-appending if statement * Change HLS notification styling Co-authored-by: spikecodes <19519553+spikecodes@users.noreply.github.com>
2021-05-10 01:25:52 +00:00 · 2021-05-10 01:25:52 +00:00 · 928907086c
commit 928907086c
parent dc9fbc1a05
15 changed files with 265 additions and 28 deletions
--- a/src/client.rs
+++ b/src/client.rs
@ -13,10 +13,10 @@ pub async fn proxy(req: Request<Body>, format: &str) -> Result<Response<Body>, S
 		url = url.replace(&format!("{{{}}}", name), value);
 	}

-	stream(&url).await
+	stream(&url, &req).await
 }

-async fn stream(url: &str) -> Result<Response<Body>, String> {
+async fn stream(url: &str, req: &Request<Body>) -> Result<Response<Body>, String> {
 	// First parameter is target URL (mandatory).
 	let url = Uri::from_str(url).map_err(|_| "Couldn't parse URL".to_string())?;

@ -26,8 +26,20 @@ async fn stream(url: &str) -> Result<Response<Body>, String> {
 	// Build the hyper client from the HTTPS connector.
 	let client: client::Client<_, hyper::Body> = client::Client::builder().build(https);

+	let mut builder = Request::get(url);
+
+	// Copy useful headers from original request
+	let headers = req.headers();
+	for &key in &["Range", "If-Modified-Since", "Cache-Control"] {
+		if let Some(value) = headers.get(key) {
+			builder = builder.header(key, value);
+		}
+	}
+
+	let stream_request = builder.body(Body::default()).expect("stream");
+
 	client
-		.get(url)
+		.request(stream_request)
 		.await
 		.map(|mut res| {
 			let mut rm = |key: &str| res.headers_mut().remove(key);
@ -40,6 +52,8 @@ async fn stream(url: &str) -> Result<Response<Body>, String> {
 			rm("x-cdn-client-region");
 			rm("x-cdn-name");
 			rm("x-cdn-server-region");
+			rm("x-reddit-cdn");
+			rm("x-reddit-video-features");

 			res
 		})
--- a/src/main.rs
+++ b/src/main.rs
@ -139,7 +139,7 @@ async fn main() {
 		"Referrer-Policy" => "no-referrer",
 		"X-Content-Type-Options" => "nosniff",
 		"X-Frame-Options" => "DENY",
-		"Content-Security-Policy" => "default-src 'none'; manifest-src 'self'; media-src 'self'; style-src 'self' 'unsafe-inline'; base-uri 'none'; img-src 'self' data:; form-action 'self'; frame-ancestors 'none';"
+		"Content-Security-Policy" => "default-src 'none'; script-src 'self' blob:; manifest-src 'self'; media-src 'self' data: blob: about:; style-src 'self' 'unsafe-inline'; base-uri 'none'; img-src 'self' data:; form-action 'self'; frame-ancestors 'none'; connect-src 'self'; worker-src blob:;"
 	};

 	if let Some(expire_time) = hsts {
@ -158,9 +158,16 @@ async fn main() {
 	app.at("/logo.png").get(|_| pwa_logo().boxed());
 	app.at("/touch-icon-iphone.png").get(|_| iphone_logo().boxed());
 	app.at("/apple-touch-icon.png").get(|_| iphone_logo().boxed());
+	app
+		.at("/playHLSVideo.js")
+		.get(|_| resource(include_str!("../static/playHLSVideo.js"), "text/javascript", false).boxed());
+	app
+		.at("/hls.min.js")
+		.get(|_| resource(include_str!("../static/hls.min.js"), "text/javascript", false).boxed());

 	// Proxy media through Libreddit
 	app.at("/vid/:id/:size").get(|r| proxy(r, "https://v.redd.it/{id}/DASH_{size}").boxed());
+	app.at("/hls/:id/*path").get(|r| proxy(r, "https://v.redd.it/{id}/{path}").boxed());
 	app.at("/img/:id").get(|r| proxy(r, "https://i.redd.it/{id}").boxed());
 	app.at("/thumb/:point/:id").get(|r| proxy(r, "https://{point}.thumbs.redditmedia.com/{id}").boxed());
 	app.at("/emoji/:id/:name").get(|r| proxy(r, "https://emoji.redditmedia.com/{id}/{name}").boxed());
@ -184,6 +191,7 @@ async fn main() {
 	// Configure settings
 	app.at("/settings").get(|r| settings::get(r).boxed()).post(|r| settings::set(r).boxed());
 	app.at("/settings/restore").get(|r| settings::restore(r).boxed());
+	app.at("/settings/update").get(|r| settings::update(r).boxed());

 	// Subreddit services
 	app.at("/r/:sub").get(|r| subreddit::community(r).boxed());
--- a/src/post.rs
+++ b/src/post.rs
@ -106,6 +106,7 @@ async fn parse_post(json: &serde_json::Value) -> Post {
 		media,
 		thumbnail: Media {
 			url: format_url(val(post, "thumbnail").as_str()),
+			alt_url: String::new(),
 			width: post["data"]["thumbnail_width"].as_i64().unwrap_or_default(),
 			height: post["data"]["thumbnail_height"].as_i64().unwrap_or_default(),
 			poster: "".to_string(),
--- a/src/search.rs
+++ b/src/search.rs
@ -31,6 +31,7 @@ struct SearchTemplate {
 	sub: String,
 	params: SearchParams,
 	prefs: Preferences,
+	url: String,
 }

 // SERVICES
@ -56,6 +57,8 @@ pub async fn find(req: Request<Body>) -> Result<Response<Body>, String> {
 		Vec::new()
 	};

+	let url = String::from(req.uri().path_and_query().map_or("", |val| val.as_str()));
+
 	match Post::fetch(&path, String::new()).await {
 		Ok((posts, after)) => template(SearchTemplate {
 			posts,
@ -70,6 +73,7 @@ pub async fn find(req: Request<Body>) -> Result<Response<Body>, String> {
 				restrict_sr: param(&path, "restrict_sr"),
 			},
 			prefs: Preferences::new(req),
+			url,
 		}),
 		Err(msg) => error(req, msg).await,
 	}
--- a/src/settings.rs
+++ b/src/settings.rs
@ -16,6 +16,21 @@ struct SettingsTemplate {
 	prefs: Preferences,
 }

+// CONSTANTS
+
+const PREFS: [&str; 10] = [
+	"theme",
+	"front_page",
+	"layout",
+	"wide",
+	"comment_sort",
+	"post_sort",
+	"show_nsfw",
+	"use_hls",
+	"hide_hls_notification",
+	"subscriptions",
+];
+
 // FUNCTIONS

 // Retrieve cookies from request "Cookie" header
@ -50,9 +65,7 @@ pub async fn set(req: Request<Body>) -> Result<Response<Body>, String> {

 	let mut res = redirect("/settings".to_string());

-	let names = vec!["theme", "front_page", "layout", "wide", "comment_sort", "post_sort", "show_nsfw"];
-
-	for name in names {
+	for &name in &PREFS {
 		match form.get(name) {
 			Some(value) => res.insert_cookie(
 				Cookie::build(name.to_owned(), value.to_owned())
@ -68,8 +81,7 @@ pub async fn set(req: Request<Body>) -> Result<Response<Body>, String> {
 	Ok(res)
 }

-// Set cookies using response "Set-Cookie" header
-pub async fn restore(req: Request<Body>) -> Result<Response<Body>, String> {
+fn set_cookies_method(req: Request<Body>, remove_cookies: bool) -> Response<Body> {
 	// Split the body into parts
 	let (parts, _) = req.into_parts();

@ -85,16 +97,14 @@ pub async fn restore(req: Request<Body>) -> Result<Response<Body>, String> {

 	let form = url::form_urlencoded::parse(query).collect::<HashMap<_, _>>();

-	let names = vec!["theme", "front_page", "layout", "wide", "comment_sort", "post_sort", "show_nsfw", "subscriptions"];
-
 	let path = match form.get("redirect") {
-		Some(value) => format!("/{}/", value),
+		Some(value) => format!("/{}", value.replace("%26", "&").replace("%23", "#")),
 		None => "/".to_string(),
 	};

 	let mut res = redirect(path);

-	for name in names {
+	for &name in &PREFS {
 		match form.get(name) {
 			Some(value) => res.insert_cookie(
 				Cookie::build(name.to_owned(), value.to_owned())
@ -103,9 +113,22 @@ pub async fn restore(req: Request<Body>) -> Result<Response<Body>, String> {
 					.expires(OffsetDateTime::now_utc() + Duration::weeks(52))
 					.finish(),
 			),
-			None => res.remove_cookie(name.to_string()),
+			None => {
+				if remove_cookies {
+					res.remove_cookie(name.to_string())
+				}
+			}
 		};
 	}

-	Ok(res)
+	res
+}
+
+// Set cookies using response "Set-Cookie" header
+pub async fn restore(req: Request<Body>) -> Result<Response<Body>, String> {
+	Ok(set_cookies_method(req, true))
+}
+
+pub async fn update(req: Request<Body>) -> Result<Response<Body>, String> {
+	Ok(set_cookies_method(req, false))
 }
--- a/src/subreddit.rs
+++ b/src/subreddit.rs
@ -16,6 +16,7 @@ struct SubredditTemplate {
 	sort: (String, String),
 	ends: (String, String),
 	prefs: Preferences,
+	url: String,
 }

 #[derive(Template)]
@ -79,12 +80,15 @@ pub async fn community(req: Request<Body>) -> Result<Response<Body>, String> {
 				Subreddit::default()
 			};

+			let url = String::from(req.uri().path_and_query().map_or("", |val| val.as_str()));
+
 			template(SubredditTemplate {
 				sub,
 				posts,
 				sort: (sort, param(&path, "t")),
 				ends: (param(&path, "after"), after),
 				prefs: Preferences::new(req),
+				url,
 			})
 		}
 		Err(msg) => match msg.as_str() {
--- a/src/user.rs
+++ b/src/user.rs
@ -16,6 +16,7 @@ struct UserTemplate {
 	sort: (String, String),
 	ends: (String, String),
 	prefs: Preferences,
+	url: String,
 }

 // FUNCTIONS
@ -33,6 +34,7 @@ pub async fn profile(req: Request<Body>) -> Result<Response<Body>, String> {

 	// Request user posts/comments from Reddit
 	let posts = Post::fetch(&path, "Comment".to_string()).await;
+	let url = String::from(req.uri().path_and_query().map_or("", |val| val.as_str()));

 	match posts {
 		Ok((posts, after)) => {
@ -45,6 +47,7 @@ pub async fn profile(req: Request<Body>) -> Result<Response<Body>, String> {
 				sort: (sort, param(&path, "t")),
 				ends: (param(&path, "after"), after),
 				prefs: Preferences::new(req),
+				url,
 			})
 		}
 		// If there is an error show error page
--- a/src/utils.rs
+++ b/src/utils.rs
@ -75,6 +75,7 @@ pub struct Flags {

 pub struct Media {
 	pub url: String,
+	pub alt_url: String,
 	pub width: i64,
 	pub height: i64,
 	pub poster: String,
@ -85,12 +86,28 @@ impl Media {
 		let mut gallery = Vec::new();

 		// If post is a video, return the video
-		let (post_type, url_val) = if data["preview"]["reddit_video_preview"]["fallback_url"].is_string() {
+		let (post_type, url_val, alt_url_val) = if data["preview"]["reddit_video_preview"]["fallback_url"].is_string() {
 			// Return reddit video
-			("video", &data["preview"]["reddit_video_preview"]["fallback_url"])
+			(
+				if data["preview"]["reddit_video_preview"]["is_gif"].as_bool().unwrap_or(false) {
+					"gif"
+				} else {
+					"video"
+				},
+				&data["preview"]["reddit_video_preview"]["fallback_url"],
+				Some(&data["preview"]["reddit_video_preview"]["hls_url"]),
+			)
 		} else if data["secure_media"]["reddit_video"]["fallback_url"].is_string() {
 			// Return reddit video
-			("video", &data["secure_media"]["reddit_video"]["fallback_url"])
+			(
+				if data["preview"]["reddit_video_preview"]["is_gif"].as_bool().unwrap_or(false) {
+					"gif"
+				} else {
+					"video"
+				},
+				&data["secure_media"]["reddit_video"]["fallback_url"],
+				Some(&data["secure_media"]["reddit_video"]["hls_url"]),
+			)
 		} else if data["post_hint"].as_str().unwrap_or("") == "image" {
 			// Handle images, whether GIFs or pics
 			let preview = &data["preview"]["images"][0];
@ -98,26 +115,26 @@ impl Media {

 			if mp4.is_object() {
 				// Return the mp4 if the media is a gif
-				("gif", &mp4["source"]["url"])
+				("gif", &mp4["source"]["url"], None)
 			} else {
 				// Return the picture if the media is an image
 				if data["domain"] == "i.redd.it" {
-					("image", &data["url"])
+					("image", &data["url"], None)
 				} else {
-					("image", &preview["source"]["url"])
+					("image", &preview["source"]["url"], None)
 				}
 			}
 		} else if data["is_self"].as_bool().unwrap_or_default() {
 			// If type is self, return permalink
-			("self", &data["permalink"])
+			("self", &data["permalink"], None)
 		} else if data["is_gallery"].as_bool().unwrap_or_default() {
 			// If this post contains a gallery of images
 			gallery = GalleryMedia::parse(&data["gallery_data"]["items"], &data["media_metadata"]);

-			("gallery", &data["url"])
+			("gallery", &data["url"], None)
 		} else {
 			// If type can't be determined, return url
-			("link", &data["url"])
+			("link", &data["url"], None)
 		};

 		let source = &data["preview"]["images"][0]["source"];
@ -128,10 +145,13 @@ impl Media {
 			format_url(url_val.as_str().unwrap_or_default())
 		};

+		let alt_url = alt_url_val.map_or(String::new(), |val| format_url(val.as_str().unwrap_or_default()));
+
 		(
 			post_type.to_string(),
 			Self {
 				url,
+				alt_url,
 				width: source["width"].as_i64().unwrap_or_default(),
 				height: source["height"].as_i64().unwrap_or_default(),
 				poster: format_url(source["url"].as_str().unwrap_or_default()),
@ -259,6 +279,7 @@ impl Post {
 				post_type,
 				thumbnail: Media {
 					url: format_url(val(post, "thumbnail").as_str()),
+					alt_url: String::new(),
 					width: data["thumbnail_width"].as_i64().unwrap_or_default(),
 					height: data["thumbnail_height"].as_i64().unwrap_or_default(),
 					poster: "".to_string(),
@ -365,6 +386,8 @@ pub struct Preferences {
 	pub layout: String,
 	pub wide: String,
 	pub show_nsfw: String,
+	pub hide_hls_notification: String,
+	pub use_hls: String,
 	pub comment_sort: String,
 	pub post_sort: String,
 	pub subscriptions: Vec<String>,
@ -379,6 +402,8 @@ impl Preferences {
 			layout: cookie(&req, "layout"),
 			wide: cookie(&req, "wide"),
 			show_nsfw: cookie(&req, "show_nsfw"),
+			use_hls: cookie(&req, "use_hls"),
+			hide_hls_notification: cookie(&req, "hide_hls_notification"),
 			comment_sort: cookie(&req, "comment_sort"),
 			post_sort: cookie(&req, "post_sort"),
 			subscriptions: cookie(&req, "subscriptions").split('+').map(String::from).filter(|s| !s.is_empty()).collect(),
@ -439,8 +464,32 @@ pub fn format_url(url: &str) -> String {
 						.unwrap_or_default()
 				};

+				macro_rules! chain {
+					() => {
+						{
+							String::new()
+						}
+					};
+
+					( $first_fn:expr, $($other_fns:expr), *) => {
+						{
+							let result = $first_fn;
+							if result.is_empty() {
+								chain!($($other_fns,)*)
+							}
+							else
+							{
+								result
+							}
+						}
+					};
+				}
+
 				match domain {
-					"v.redd.it" => capture(r"https://v\.redd\.it/(.*)/DASH_([0-9]{2,4}(\.mp4|$))", "/vid/", 2),
+					"v.redd.it" => chain!(
+						capture(r"https://v\.redd\.it/(.*)/DASH_([0-9]{2,4}(\.mp4|$))", "/vid/", 2),
+						capture(r"https://v\.redd\.it/(.+)/(HLSPlaylist\.m3u8.*)$", "/hls/", 2)
+					),
 					"i.redd.it" => capture(r"https://i\.redd\.it/(.*)", "/img/", 1),
 					"a.thumbs.redditmedia.com" => capture(r"https://a\.thumbs\.redditmedia\.com/(.*)", "/thumb/a/", 1),
 					"b.thumbs.redditmedia.com" => capture(r"https://b\.thumbs\.redditmedia\.com/(.*)", "/thumb/b/", 1),
--- a/static/hls.min.js
+++ b/static/hls.min.js
--- a/static/playHLSVideo.js
+++ b/static/playHLSVideo.js
@ -0,0 +1,77 @@
+// @license http://www.gnu.org/licenses/agpl-3.0.html AGPL-3.0
+(function () {
+    if (Hls.isSupported()) {
+        var videoSources = document.querySelectorAll("video source[type='application/vnd.apple.mpegurl']");
+        videoSources.forEach(function (source) {
+            var playlist = source.src;
+
+            var oldVideo = source.parentNode;
+            var autoplay = oldVideo.classList.contains("hls_autoplay");
+
+            // If HLS is supported natively then don't use hls.js
+            if (oldVideo.canPlayType(source.type)) {
+                if (autoplay) {
+                    oldVideo.play();
+                }
+                return;
+            }
+
+            // Replace video with copy that will have all "source" elements removed
+            var newVideo = oldVideo.cloneNode(true);
+            var allSources = newVideo.querySelectorAll("source");
+            allSources.forEach(function (source) {
+                source.remove();
+            });
+
+            // Empty source to enable play event
+            newVideo.src = "about:blank";
+
+            oldVideo.parentNode.replaceChild(newVideo, oldVideo);
+
+            function initializeHls() {
+                newVideo.removeEventListener('play', initializeHls);
+
+                var hls = new Hls({ autoStartLoad: false });
+                hls.loadSource(playlist);
+                hls.attachMedia(newVideo);
+                hls.on(Hls.Events.MANIFEST_PARSED, function () {
+                    hls.loadLevel = hls.levels.length - 1;
+                    hls.startLoad();
+                    newVideo.play();
+                });
+
+                hls.on(Hls.Events.ERROR, function (event, data) {
+                    var errorType = data.type;
+                    var errorFatal = data.fatal;
+                    if (errorFatal) {
+                        switch (errorType) {
+                            case Hls.ErrorType.NETWORK_ERROR:
+                                hls.startLoad();
+                                break;
+                            case Hls.ErrorType.MEDIA_ERROR:
+                                hls.recoverMediaError();
+                                break;
+                            default:
+                                hls.destroy();
+                                break;
+                        }
+                    }
+
+                    console.error("HLS error", data);
+                });
+            }
+
+            newVideo.addEventListener('play', initializeHls);
+
+            if (autoplay) {
+                newVideo.play();
+            }
+        });
+    } else {
+        var videos = document.querySelectorAll("video.hls_autoplay");
+        videos.forEach(function (video) {
+            video.setAttribute("autoplay", "");
+        });
+    }
+})();
+// @license-end
--- a/static/style.css
+++ b/static/style.css
@ -664,6 +664,7 @@ a.search_subreddit:hover {
 			"post_score post_title  post_thumbnail" 1fr
 			"post_score post_media  post_thumbnail" auto
 			"post_score post_body   post_thumbnail" auto
+			"post_score post_notification post_thumbnail" auto
 			"post_score post_footer post_thumbnail" auto
 			/ minmax(40px, auto) minmax(0, 1fr) fit-content(min(20%, 152px));
 }
@ -706,6 +707,17 @@ a.search_subreddit:hover {
 	grid-area: post_title;
 }

+.post_notification {
+	grid-area: post_notification;
+	margin: 5px 15px;
+	text-align: center;
+	font-size: 12px;
+}
+
+.post_notification a {
+	text-decoration: underline;
+}
+
 .post_flair {
 	background: var(--accent);
 	color: var(--background);
@ -1256,6 +1268,7 @@ td, th {
 				"post_title  post_title  post_thumbnail" 1fr
 				"post_media  post_media  post_thumbnail" auto
 				"post_body   post_body   post_thumbnail" auto
+				"post_notification post_notification post_thumbnail" auto
 				"post_score  post_footer post_thumbnail" auto
 				/ auto 1fr fit-content(min(20%, 152px));
 	}
--- a/templates/post.html
+++ b/templates/post.html
@ -68,7 +68,17 @@
 				</svg>
 			</a>
 			{% else if post.post_type == "video" || post.post_type == "gif" %}
+			{% if prefs.use_hls == "on" && !post.media.alt_url.is_empty() %}
+			<script src="/hls.min.js"></script>
+			<video class="post_media_video short hls_autoplay" width="{{ post.media.width }}" height="{{ post.media.height }}" poster="{{ post.media.poster }}" controls preload="none">
+				<source src="{{ post.media.alt_url }}" type="application/vnd.apple.mpegurl" />
+				<source src="{{ post.media.url }}" type="video/mp4" />
+			</video>
+			<script src="/playHLSVideo.js"></script>
+			{% else %}
 			<video class="post_media_video" src="{{ post.media.url }}" controls autoplay loop><a href={{ post.media.url }}>Video</a></video>
+			{% call utils::render_hls_notification(post.permalink[1..]) %}
+			{% endif %}
 			{% else if post.post_type == "gallery" %}
 			<div class="gallery">
 			{% for image in post.gallery -%}
--- a/templates/settings.html
+++ b/templates/settings.html
@ -52,6 +52,14 @@
 				<label for="show_nsfw">Show NSFW posts:</label>
 				<input type="checkbox" name="show_nsfw" {% if prefs.show_nsfw == "on" %}checked{% endif %}>
 			</div>
+			<div id="use_hls">
+				<label for="use_hls">Use HLS for videos</label>
+				<input type="checkbox" name="use_hls" {% if prefs.use_hls == "on" %}checked{% endif %}>
+			</div>
+			<div id="hide_hls_notification">
+				<label for="hide_hls_notification">Hide notification about possible HLS usage</label>
+				<input type="checkbox" name="hide_hls_notification" {% if prefs.hide_hls_notification == "on" %}checked{% endif %}>
+			</div>
 			<input id="save" type="submit" value="Save">
 		</div>
 	</form>
@ -68,10 +76,10 @@
 			{% endfor %}
 		</div>
 	{% endif %}
-	
+
 	<div id="settings_note">
 		<p><b>Note:</b> settings and subscriptions are saved in browser cookies. Clearing your cookies will reset them.</p><br>
-		<p>You can restore your current settings and subscriptions after clearing your cookies using <a href="/settings/restore/?theme={{ prefs.theme }}&front_page={{ prefs.front_page }}&layout={{ prefs.layout }}&wide={{ prefs.wide }}&comment_sort={{ prefs.comment_sort }}&show_nsfw={{ prefs.show_nsfw }}&subscriptions={{ prefs.subscriptions.join("%2B") }}">this link</a>.</p>
+		<p>You can restore your current settings and subscriptions after clearing your cookies using <a href="/settings/restore/?theme={{ prefs.theme }}&front_page={{ prefs.front_page }}&layout={{ prefs.layout }}&wide={{ prefs.wide }}&comment_sort={{ prefs.comment_sort }}&show_nsfw={{ prefs.show_nsfw }}&use_hls={{ prefs.use_hls }}&hide_hls_notification={{ prefs.hide_hls_notification }}&subscriptions={{ prefs.subscriptions.join("%2B") }}">this link</a>.</p>
 	</div>
 </div>

--- a/templates/subreddit.html
+++ b/templates/subreddit.html
@ -52,6 +52,10 @@
 			{% call utils::post_in_list(post) %}
 			{% endif %}
 			{% endfor %}
+			{% if prefs.use_hls == "on" %}
+			<script src="/hls.min.js"></script>
+			<script src="/playHLSVideo.js"></script>
+			{% endif %}
 			</div>

 			<footer>
--- a/templates/utils.html
+++ b/templates/utils.html
@ -55,8 +55,14 @@
 {% endif %}
 {%- endmacro %}

+{% macro render_hls_notification(redirect_url) -%}
+{% if post.post_type == "video" && !post.media.alt_url.is_empty() && prefs.hide_hls_notification != "on" %}
+<div class="post_notification"><p><a href="/settings/update/?use_hls=on&redirect={{ redirect_url }}">Enable HSL</a> to view with audio, or <a href="/settings/update/?hide_hls_notification=on&redirect={{ redirect_url }}">disable this notification</a></p></div>
+{% endif %}
+{%- endmacro %}
+
 {% macro post_in_list(post) -%}
-<div class="post {% if post.flags.stickied %}stickied{% endif %}">	
+<div class="post {% if post.flags.stickied %}stickied{% endif %}" id="{{ post.id }}">
 	<p class="post_header">
 		{% let community -%}
 		{% if post.community.starts_with("u_") -%}
@ -95,7 +101,15 @@
 	{% else if (prefs.layout.is_empty() || prefs.layout == "card") && post.post_type == "gif" %}
 	<video class="post_media_video short" src="{{ post.media.url }}" width="{{ post.media.width }}" height="{{ post.media.height }}" controls loop autoplay><a href={{ post.media.url }}>Video</a></video>
 	{% else if (prefs.layout.is_empty() || prefs.layout == "card") && post.post_type == "video" %}
+	{% if prefs.use_hls == "on" && !post.media.alt_url.is_empty() %}
+	<video class="post_media_video short" width="{{ post.media.width }}" height="{{ post.media.height }}" poster="{{ post.media.poster }}" controls preload="none">
+		<source src="{{ post.media.alt_url }}" type="application/vnd.apple.mpegurl" />
+		<source src="{{ post.media.url }}" type="video/mp4" />
+	</video>
+	{% else %}
 	<video class="post_media_video short" src="{{ post.media.url }}" width="{{ post.media.width }}" height="{{ post.media.height }}" poster="{{ post.media.poster }}" preload="none" controls autoplay><a href={{ post.media.url }}>Video</a></video>
+	{% call render_hls_notification(format!("{}%23{}", &self.url[1..].replace("&", "%26"), post.id)) %}
+	{% endif %}
 	{% else if post.post_type != "self" %}
 	<a class="post_thumbnail {% if post.thumbnail.url.is_empty() %}no_thumbnail{% endif %}" href="{% if post.post_type == "link" %}{{ post.media.url }}{% else %}{{ post.permalink }}{% endif %}">
 		{% if post.thumbnail.url.is_empty() %}