ubuntu:video
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ubuntu:video [2023/06/06 23:12] – peter | ubuntu:video [2023/06/19 07:11] (current) – peter | ||
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====== Video ====== | ====== Video ====== | ||
- | Almost all the video is compressed. | + | See [[ffmpeg: |
- | Raw, uncompressed video is just too big and would waste too much bandwidth. | + | ---- |
- | Common compression: | + | [[Ubuntu:Video:About Video|About Video]] |
- | * MPEG-1: Used for Video CDs | + | [[Ubuntu:Video:Install h.264 decoder|Install h.264 decoder]] |
- | * MP3: Part of the MPEG-1 standard, ubiquitous today | + | |
- | * MPEG-2/ | + | |
- | * MPEG-4 Part 10/H.264: Used in Blu-ray | + | |
- | * MPEG-H/ | + | |
- | + | ||
- | After H.264 came H.265. It also has a few other names, most commonly High Efficiency Video Coding (HEVC) or MPEG-H. | + | |
- | + | ||
- | H.265 doubles the data compression ratio compared to H.264 and can support resolutions up to 8192×4320. | + | |
- | + | ||
- | This means that video at the same quality needs only half of the bandwidth (or file size). | + | |
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===== Conversion ===== | ===== Conversion ===== | ||
- | [[Ubuntu: | + | See: |
- | [[Ubuntu: | + | ---- |
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- | ---- | ||
===== Encoding ===== | ===== Encoding ===== |
ubuntu/video.1686093158.txt.gz · Last modified: 2023/06/06 23:12 by peter