Tag Archives: encoding review

So, there I was downloading videos from YouTube to include in a PowerPoint for a training course I was producing. Unfortunately, my download tool, wondershare’s excellent video converter, downloaded separate audio and video streams, the video in an MP4 wrapper and the audio as an MP3 file. So I had to mux the two to input them into PowerPoint. A …

All codecs and encoding tools have a configuration option that controls the quality/encoding time tradeoff. With x264 (and x265) the preset controls that tradeoff. When choosing a preset you should consider 3 criteria: Overall quality – the overall quality produced by that preset Low frame quality – the quality of the lowest frame produced by that preset, which indicates the …

Many producers distribute the same encoding ladder to all viewers. However, sending a 1080p stream to smartphone viewers may be a waste of bandwidth as both SSIMPLUS and VMAF scores reveal that lower resolution, lower-bandwidth videos deliver similar quality at a lower cost. This tutorial, from my course Computing and Using Video Quality Metrics, shows you the tests I performed …