H.264 is Magic (2016)
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H.264 is Magic (2016)
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Re: H.264 is Magic (2016)
#2The article starts off with talking about "raw" video containing 3 bytes for every pixel.
However, most video is YUV, which is typically 1.5 bytes/pixel.
Re: H.264 is Magic (2016)
#3See also H.265:
* https://en.wikipedia.org/wiki/High_Efficiency_Video_Coding
And now even H.266:
* https://en.wikipedia.org/wiki/Versatile_Video_Coding
Also, at what point will AV1 become "mainstream"? How prevalent is it? Still seems that hardware decoding (never mind encoding) support is still only so-so.
Re: H.264 is Magic (2016)
#4Scoooped: https://news.ycombinator.com/item?id=30686148 ;) ;p xx ;p
Re: H.264 is Magic (2016)
#5Missing 2016 in the title.
Re: H.264 is Magic (2016)
#6The article starts off with talking about "raw" video containing 3 bytes for every pixel. However, most video is YUV, which is typically 1.5 bytes/pixel. https://en.wikipedia.org/wiki/YUV
Well, if we're being pedantic here, raw RGB video as would be displayed on a RGB monitor does indeed take 3 bytes per pixel. Technically, YUV is either an optimization or a backwards compatibility measure, and hence the adjective "raw" does not apply to it.
Re: H.264 is Magic (2016)
#7The article starts off with talking about "raw" video containing 3 bytes for every pixel. However, most video is YUV, which is typically 1.5 bytes/pixel. https://en.wikipedia.org/wiki/YUV
If you actually read the rest of the article, the author covers this in the section about chroma subsampling.
Re: H.264 is Magic (2016)
#8Scoooped: https://news.ycombinator.com/item?id=30686148 ;) ;p xx ;p
Timing is everything.
Re: H.264 is Magic (2016)
#9See also H.265: * https://en.wikipedia.org/wiki/High_Efficiency_Video_Coding And now even H.266: * https://en.wikipedia.org/wiki/Versatile_Video_Coding Also, at what point will AV1 become "mainstream"? How prevalent is it? Still seems that hardware decoding (never mind encoding) support is still only so-so.
Yeah, in this era of mobile device dominance i think hardware decoding is key. Suspect Apple will add it then suddenly the Android SoC folks will suddenly consider it a priority and not before.
Re: H.264 is Magic (2016)
#10Fabrice Bellard's BPG image format uses H.265's keyframe compressor: https://bellard.org/bpg/
Here is a side-by-side visual comparison: http://xooyoozoo.github.io/yolo-octo-bugfixes/#ballet-exerci...
Amazing.
I ported his BPG decoder to Android ARM for a pornographic app. See my comment history for details. It reduced data transfer by more than 60%.