The application is definitely multi-threaded – this screenshot shows the encoder using all the available computing power of my (admittedly rather elderly) quad-core PC. In fact I’m not sure it would be possible to tell which was which if you didn’t already know. In my own completely unscientific test, encoding the same master video to h264 and h265 resulted in a filesize of 82.2MB for h264 and 47.7MB for h265 – and viewed back using VLC there didn’t appear to be any obvious differences between the two files.
h265 takes significantly longer than h264 to encode but the output has a much smaller filesize. Video Mastering Works offers HEVC h265 encoding as well as a long list of other codec options (and an unfortunate proof-reading error).Īnd if you want to try it for yourself now you can: the latest version of TMPGEnc’s Video Mastering Works offers HEVC encoding, a reasonable purchase price of $122 and a free trial download. This is because it aims to be twice as efficient at encoding as h264 – it’s also known as HEVC or High Efficiency Video Codec. It’s early days: there aren’t many devices or software packages that can play h265 content yet, but it’s a very appealing as a format, especially if you’re working in 4K.
H264 video compression is ubiquitous, well-supported and really really old – the standard was agreed in 2003, which means although it’s a workhorse codec for nearly all online video content, technological advances in the intervening years mean it’s now looking a bit underpowered.Īnd with greater-than-HD resolutions gradually gaining popularity for acquisition and finishing, h265 is likely to be the format of choice for the next ten years of video transmission on the web.
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