video compression

Compressed Video Format

Summary

A good compressed video is one that is encoded and compressed using a technique where the file size is reduced without losing its original quality. Different formats use different algorithms for file compression.

Key Points

Selecting the right compression format depends on file requirements and playback device.
Top 5 commonly used formats for video compression:

1. **H.264 (MPEG-4 AVC)** - Offers high-quality files at lower bit rates. - Compatible with many players and devices. - Suitable for Blu-ray disc playback. 2. **DivX** - Developed by DivX, LLC. - Shrinks video files into small size while maintaining high quality. - Uses 3 codecs. 3. **MP4** - Universal format compatible with most players and devices. - Compresses videos into smaller file size while keeping decent quality. - Compatible with almost all versions of MPEG-4 and H.264. 4. **AVI** - Multimedia container format offering high-quality compressed files. - Supports multiple audio and video files. - Supports a wide range of codecs. 5. **WMV** - Developed by Microsoft as part of the Windows Media Framework. - Ideal for file compression to send large files over email and other sources with file size limitations. - May result in loss of quality.

HEVC Compression Results

Overview

HEVC compression was tested on two videos, with the first being 8 megs and the second 1.6 megs after compression.

Steps

Rendered the second video at 352x288 resolution.

Notes

The first video is very clean and full screen with detailed quality but has a delay on playback.
The decision was made to use the lower resolution for illustration of the idea but not for any detail.

Posting Videos on Forumla Site

Overview

A 14 meg video was posted on the plasma build post.

Steps

Video was posted on the forum at https://forumla.us/community/older-cnc-table-retrofit/conversion-to-myplasma-cnc/#post-192