![]() ![]() Vested interests and business modelsīoth H.264 and H.265 standards are owned by ITU-T Video Coding Experts Group. Now, it is worth stating at this stage that both standards (as of today) are still in development and it is likely that this margin will change either growing or getting closer together. Here is a little comparison video between the two compression formats: In addition to compress a video to VP9 it will take double as long when compared with H.265. This means that for an average 100MB H.265 video VP9 would need a file size of 108.4MB to achieve the same quality. Though to summarise as it stands the research indicates that VP9 is 'worse' than H.265 by 8.4% (from a compression efficiency perspective). If you would really like the full and detailed technical evaluation of which is better from a compression perspective between H.265 and VP6 then here is a really expansive white paper that was published in December 2013: H.265 vs VP9 white paper. If a W3C web standard is set then it means that technology vendors have a significant motive in supporting it. HTML5 for example is the most recent emerging standard and a big part of it is video embedding. Relating codecs to web and HTML5Īs web standards develop the big players (Mozilla, Google, Opera, W3C etc.) get together to try to agree on what should and should not be part of it. Their goal again being to drop bandwidth and server resource consumption. In doing this they acquired various compression technologies including their VP6 CODEC. ![]() In 2009 google bought a video compression codec called "On2". H.264 has also become the standard for HD broadcast quality video and is used to broadcast Freeview HD channels in the UK. If we reflect on what we have today, the vast majority of videos on the internet are provided in H.264 and the average Joe's computer/mobile hardware can support this quite easily. In the past this was heavily held back by the average computer processor (I remember in 2006 most computers would struggle running H.264 MPEG4 videos at any resolution about 480p!). What has typically happened is that as a standard develops it gains adoption until it reaches some critical mass of user-ship/compatibility. To cut a long story short companies like Google who deliver tons of online video have a large vested interest in reducing server costs by improving the efficiency of these codecs. You would have codec packs (such as Kazza / K-Lite) that would provide hundreds of codecs to try and solve the problem. Lots of sites were delivering video downloads which would rack up extremely expensive bandwidth bills for popular websites.īack at this point the number of codecs in existence was huge, each camera recorded as something different and each site would choose to deliver video in its own format. Back then server bandwidth allowances and computer CPU performance were pretty low. I first got into dabbling with video compression in around 2004, this was before YouTube and probably just around the time where compact video recording cameras started to become popular. To give you a little bit of context as to how we are arriving at today's debate we first need to take a look at the video compression landscape. This article will discuss the background to the emergence of these technologies, review the business models of the companies supporting them, and make comment on what we think the future will hold for these standards. We are interested in both formats as the battle between the two will (whether you will notice it or not) have an effect on how websites and web applications can/should deliver video content. file size) and requiring as little processing time as possible. Their technical goals are essentially the same: deliver the highest quality of video possible at the lowest bit rate (i.e. H.265 (HEVC) and VP9 (owned by Google) are two competing video compression codecs. H.265 - Video compression business modelsĪ "codec" is a standard plus the technology behind compressing a video and saving it as a file. ![]()
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