ActivityPub Viewer

A small tool to view real-world ActivityPub objects as JSON! Enter a URL or username from Mastodon or a similar service below, and we'll send a request with the right Accept header to the server to view the underlying object.

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{ "@context": [ "https://www.w3.org/ns/activitystreams", { "ostatus": "http://ostatus.org#", "atomUri": "ostatus:atomUri", "inReplyToAtomUri": "ostatus:inReplyToAtomUri", "conversation": "ostatus:conversation", "sensitive": "as:sensitive", "toot": "http://joinmastodon.org/ns#", "votersCount": "toot:votersCount", "Hashtag": "as:Hashtag" } ], "id": "https://digitalcourage.social/users/nielso/statuses/114472405777432597/replies", "type": "Collection", "first": { "id": "https://digitalcourage.social/users/nielso/statuses/114472405777432597/replies?page=true", "type": "CollectionPage", "next": "https://digitalcourage.social/users/nielso/statuses/114472405777432597/replies?only_other_accounts=true&page=true", "partOf": "https://digitalcourage.social/users/nielso/statuses/114472405777432597/replies", "items": [ { "id": "https://digitalcourage.social/users/nielso/statuses/114472441716745671", "type": "Note", "summary": null, "inReplyTo": "https://digitalcourage.social/users/nielso/statuses/114472405777432597", "published": "2025-05-08T13:27:21Z", "url": "https://digitalcourage.social/@nielso/114472441716745671", "attributedTo": "https://digitalcourage.social/users/nielso", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://digitalcourage.social/users/nielso/followers" ], "sensitive": false, "atomUri": "https://digitalcourage.social/users/nielso/statuses/114472441716745671", "inReplyToAtomUri": "https://digitalcourage.social/users/nielso/statuses/114472405777432597", "conversation": "tag:digitalcourage.social,2025-05-08:objectId=102866636:objectType=Conversation", "content": "<p>A little <a href=\"https://digitalcourage.social/tags/Livestreaming\" class=\"mention hashtag\" rel=\"tag\">#<span>Livestreaming</span></a> and <a href=\"https://digitalcourage.social/tags/Video\" class=\"mention hashtag\" rel=\"tag\">#<span>Video</span></a>🧵 (3/x)</p><p>More software video <a href=\"https://digitalcourage.social/tags/encoding\" class=\"mention hashtag\" rel=\"tag\">#<span>encoding</span></a> in <a href=\"https://digitalcourage.social/tags/OBS\" class=\"mention hashtag\" rel=\"tag\">#<span>OBS</span></a> on <a href=\"https://digitalcourage.social/tags/Linux\" class=\"mention hashtag\" rel=\"tag\">#<span>Linux</span></a>: So AOM-AV1 at 8mbps and the highest <a href=\"https://digitalcourage.social/tags/CPU\" class=\"mention hashtag\" rel=\"tag\">#<span>CPU</span></a>-eating setting works on my studio <a href=\"https://digitalcourage.social/tags/Intel\" class=\"mention hashtag\" rel=\"tag\">#<span>Intel</span></a> <a href=\"https://digitalcourage.social/tags/Xeon\" class=\"mention hashtag\" rel=\"tag\">#<span>Xeon</span></a> – at ~33% CPU consumption</p><p>However, to my eyes it looks equally bad as <a href=\"https://digitalcourage.social/tags/libx264\" class=\"mention hashtag\" rel=\"tag\">#<span>libx264</span></a> in the “slow” setting at ~44% CPU.</p><p>SVT-AV1 eats ~51% of my 16 CPU cores at 8mbps in its medium setting and also doesn&#39;t look better.</p><p>So what&#39;s actually happening? Turns out there is a caveat: All testing video data had been encoded with MJPEG already before.</p><p>Because this is what most USB-UVC frame grabbers and webcams actually do. Otherwise FullHD 30fps would not fit through USB2 connections.</p><p>(to be continued)</p>", "contentMap": { "de": "<p>A little <a href=\"https://digitalcourage.social/tags/Livestreaming\" class=\"mention hashtag\" rel=\"tag\">#<span>Livestreaming</span></a> and <a href=\"https://digitalcourage.social/tags/Video\" class=\"mention hashtag\" rel=\"tag\">#<span>Video</span></a>🧵 (3/x)</p><p>More software video <a href=\"https://digitalcourage.social/tags/encoding\" class=\"mention hashtag\" rel=\"tag\">#<span>encoding</span></a> in <a href=\"https://digitalcourage.social/tags/OBS\" class=\"mention hashtag\" rel=\"tag\">#<span>OBS</span></a> on <a href=\"https://digitalcourage.social/tags/Linux\" class=\"mention hashtag\" rel=\"tag\">#<span>Linux</span></a>: So AOM-AV1 at 8mbps and the highest <a href=\"https://digitalcourage.social/tags/CPU\" class=\"mention hashtag\" rel=\"tag\">#<span>CPU</span></a>-eating setting works on my studio <a href=\"https://digitalcourage.social/tags/Intel\" class=\"mention hashtag\" rel=\"tag\">#<span>Intel</span></a> <a href=\"https://digitalcourage.social/tags/Xeon\" class=\"mention hashtag\" rel=\"tag\">#<span>Xeon</span></a> – at ~33% CPU consumption</p><p>However, to my eyes it looks equally bad as <a href=\"https://digitalcourage.social/tags/libx264\" class=\"mention hashtag\" rel=\"tag\">#<span>libx264</span></a> in the “slow” setting at ~44% CPU.</p><p>SVT-AV1 eats ~51% of my 16 CPU cores at 8mbps in its medium setting and also doesn&#39;t look better.</p><p>So what&#39;s actually happening? Turns out there is a caveat: All testing video data had been encoded with MJPEG already before.</p><p>Because this is what most USB-UVC frame grabbers and webcams actually do. Otherwise FullHD 30fps would not fit through USB2 connections.</p><p>(to be continued)</p>" }, "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://digitalcourage.social/tags/livestreaming", "name": "#livestreaming" }, { "type": "Hashtag", "href": "https://digitalcourage.social/tags/video", "name": "#video" }, { "type": "Hashtag", "href": "https://digitalcourage.social/tags/encoding", "name": "#encoding" }, { "type": "Hashtag", "href": "https://digitalcourage.social/tags/obs", "name": "#obs" }, { "type": "Hashtag", "href": "https://digitalcourage.social/tags/linux", "name": "#linux" }, { "type": "Hashtag", "href": "https://digitalcourage.social/tags/cpu", "name": "#cpu" }, { "type": "Hashtag", "href": "https://digitalcourage.social/tags/intel", "name": "#intel" }, { "type": "Hashtag", "href": "https://digitalcourage.social/tags/xeon", "name": "#xeon" }, { "type": "Hashtag", "href": "https://digitalcourage.social/tags/libx264", "name": "#libx264" } ], "replies": { "id": "https://digitalcourage.social/users/nielso/statuses/114472441716745671/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://digitalcourage.social/users/nielso/statuses/114472441716745671/replies?min_id=114472483194642290&page=true", "partOf": "https://digitalcourage.social/users/nielso/statuses/114472441716745671/replies", "items": [ "https://digitalcourage.social/users/nielso/statuses/114472483194642290" ] } }, "likes": { "id": "https://digitalcourage.social/users/nielso/statuses/114472441716745671/likes", "type": "Collection", "totalItems": 2 }, "shares": { "id": "https://digitalcourage.social/users/nielso/statuses/114472441716745671/shares", "type": "Collection", "totalItems": 0 } } ] } }