Edit HD video on a slow computer with an intermediate codec en

By Johnny on Tuesday 4 May 2010 22:45 - Comments (9)
Category: video, Views: 13.263

This article intended for those interested in editing High Definition video and setting up a workflow for that. the article assumes the reader has a technical background. It covers the various aspects involved in choosing an intermediate codec and how to transcode video files. All examples here are done on Mac OS X but the principles can be applied on any operating system with similar applications and codecs.

Introduction

We have reached a point in time that consumer cameras can capture HD video. However, editing HD video it is still a source of much confusion and frustration for many people who want to ejoy the benefits of HD but run into problems with large files that their computer can't seem to play or edit.

My new camera shoots video at full HD, which means an image resolution of 1920 by 1080 pixels at 60 frames per second. Using uncompressed video would cause the memory card to fill very fast, so fast in fact that even the fastest memory cards would not be able to keep up.

To compensate for the limited amount of storage speed and space the video (and audio) is compressed. There are many different video compression algorithms in existence, they all have different properties.

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