How does a video codec work?

Post by tus88 » Sat, Nov 23, 2019, 7:13 AM UTC

unlinked_dll wrote: post #4

One thing that I wish more folks did with DSP/media tech was to start with concepts instead of diving into details first. Like, "how does a video codec work?" should start with: what is the problem? (reducing the bits per second required for a video stream, since it's big) and how? (don't send superfluous detail, since it's either redundant or imperceptible). Than dive into the details of how color is represented, ho…

Post by alexirae » Sat, Nov 23, 2019, 7:20 AM UTC

Post by greggman2 » Sat, Nov 23, 2019, 8:54 AM UTC

Post by Bnshsysjab » Sat, Nov 23, 2019, 9:08 AM UTC

savoytruffle wrote: post #16

greggman2 wrote: post #15

As much as I like Apple it seems like they are in the back pocket of big media when it comes to this topic. AFAICT Apple only supports h.264 and h.265 meaning 1.3 billion iOS devices have browsers that can't access open standards for video. Yet one more reason why Apple should be required to allow alternate browser engines IMO. Some will claim it's a battery issue but Apple has the resources to add hardware support f…

It sounds like you don't like Apple at all

Post by bujak3000 » Sat, Nov 23, 2019, 9:15 AM UTC

anovikov wrote: post #18

greggman2 wrote: post #15

As much as I like Apple it seems like they are in the back pocket of big media when it comes to this topic. AFAICT Apple only supports h.264 and h.265 meaning 1.3 billion iOS devices have browsers that can't access open standards for video. Yet one more reason why Apple should be required to allow alternate browser engines IMO. Some will claim it's a battery issue but Apple has the resources to add hardware support f…

Not sure what you mean, a stock iPhone plays a VP8 webrtc stream with no issues?