![]() ![]() While these were interesting to me and more than a handful of people at the time they were published, I was never fully satisfied to leave the series of postings where they were. ![]() Tech Flashback: Digital Video at 1.2Mbit/s – Developments in Video Compression.Video Compression: x264 CRF Generational Loss Testing.Video Codec Tests: x264 CRF vs enc_qsv CQ vs x265 CRF in Handbrake 0.10.5.Video Compression Testing: x264 vs x265 CRF in Handbrake 0.10.5.In the past, I’ve published a few posts about the topic of video encoding, including: Given just how much of our modern lives revolve around the visual aspect of video, be it in videoconferencing, live-streaming, broadcasting and video-on-demand services, advances in codecs have pushed the barriers in terms of quality and resolution for the limited amount of bandwidth we have available or can economically afford to devote for such services. Given information theory, this couldn’t continue on infinitely, but I was surprised to see that strides continue to be made in the field. I’ve seen just how newer encoding schemes got ever-more complex, frequently stressing out CPUs, but also halving the amount of bitrate necessary for the same “quality” (subjectively speaking). ![]() Even in my primary school years, I wondered just how a computer could store such “instructions” on how to modify an image – after all, a computer has no concept of objects, no concept of the scene … all it knows is a 2D array of numerical values that represent a pixel. a P-frame) as that would be a more compact representation rather than a stream of images. an I-frame) and notating all the changes made to it (i.e. From my younger years, I recall video compression being explained to me in terms of storing a reference image (i.e. If you would ask me what I find most impressive growing up, it would be watching the proliferation of multimedia on computers and the advances in video encoding. ![]()
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