Schlagwort-Archiv: raw

Video Codecs verstehen (video in english)

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David Kong hat sich die Mühe gemacht und mal eine gute Lecture zum Thema „Codecs“ online gestellt. Was sich erstmal totlangweilig anhört ist eigentlich ein umfassender Blick in die Küche der Bewegtbildköche. Viele der angesprochenen Themen sind gelten auch für das Standbild.

Folgende Themen werden behandelt:

– What a codec is – And how it differs from a container.
– Different types of codecs – And why I frequently use 4 different codecs on a single project.
– Bit Depth – What it means and why it matters.
– Chroma Subsampling – 4:4:4, 4:2:2, and 4:2:0, and when it becomes an issue.
– Spatial Compression and Blocking – One of the most common artefacts you see with normal work.
– Temporal Compression – Long-GOP codecs, inter-frame compression, and ALL-I codecs.
– Lossless vs. Lossy compression – How image compression differs from data compression.
– Bit Rate – How to calculate bit rates and the differences between kbps/kBps/Mbps/MBps.
– Raw – Briefly, the difference between Raw, compressed, and uncompressed video.

https://vimeo.com/104554788