{"guid":"fb46944d-6361-53d8-bd49-45635d35f29d","title":"Grundlagen der Videokompression","subtitle":null,"slug":"rc3-2021-fem-442-grundlagen-der-videokom","link":"https://pretalx.c3voc.de/rc3-2021-fem/talk/UEZNS8/","description":"In diesem Talk möchte ich über die Grundlagen der Videokompression sprechen, und die besonderen Gedankengänge anhand der MPEG-Videokodecs erläutern. Zudem soll es einen kleinen Einblick in den kürzlich verabschiedeten Standard Versatile Video Coding (VVC, H.266) geben.\n\nFragen, die ich beantworten möchte, sind:\n1. Wie funktionieren Videodateien?\n2. Warum ist Videokompression notwendig?\n3. Welche Anwendungsfälle gibt es für Videoaufnahmen?\n4. Wie funktioniert Videokompression? (Skalierung, Farb-Unterabtastung, Bewegungsschätzung, variable Blockgrößen)\n5. Was ist neu in VVC/H.266?\n\nLinksammlung:\n- [Chroma Subsampling](https://en.wikipedia.org/wiki/Chroma_subsampling)\n- [Fraunhofer VVC-Videoencoder](https://github.com/fraunhoferhhi/vvenc)\n- [Homepage des Vortragenden](https://iamjannik.me)","original_language":"deu","persons":["Jannik"],"tags":["rc3-2021-import","442","2021","Medien"],"view_count":917,"promoted":false,"date":"2021-12-28T21:15:00.000+01:00","release_date":"2022-01-04T00:00:00.000+01:00","updated_at":"2026-04-02T16:15:04.410+02:00","length":1168,"duration":1168,"thumb_url":"https://static.media.ccc.de/media/events/rc3/2021/442-fb46944d-6361-53d8-bd49-45635d35f29d.jpg","poster_url":"https://static.media.ccc.de/media/events/rc3/2021/442-fb46944d-6361-53d8-bd49-45635d35f29d_preview.jpg","timeline_url":"https://static.media.ccc.de/media/events/rc3/2021/442-fb46944d-6361-53d8-bd49-45635d35f29d.timeline.jpg","thumbnails_url":"https://static.media.ccc.de/media/events/rc3/2021/442-fb46944d-6361-53d8-bd49-45635d35f29d.thumbnails.vtt","frontend_link":"https://media.ccc.de/v/rc3-2021-fem-442-grundlagen-der-videokom","url":"https://api.media.ccc.de/public/events/fb46944d-6361-53d8-bd49-45635d35f29d","conference_title":"rC3 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