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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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Raspberry Pi - Introducing: Raspberry Pi 5 (www.raspberrypi.com)

submitted 1 year ago by [email protected] to c/[email protected]

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[–] Kushan 3 points 1 year ago (1 children)

Are you sure they said it'll decode 4k h264 smoothly? I'm seeing them saying 1080p is good, but not 4k.

Here's a quote from the article you linked, emphasis mine:

RPi5 can software decode AV1, H264, VC1, VP9, and more at 1080p with ease. In our testing with YouTube and inputstream.adaptive a surprising amount of 4K media also plays.

Note that it's unclear from this quote what Codec the Youtube stream was using, but remember that Youtube is quite low bitrate even at 4k. The implication here is that 1080p h264 is good and low bitrate 4k stuff might be okay, but it will struggle beyond that. Keep in mind that it's not any worse than RPi 4 in that area, but I don't think it's going to be much better either.

[–] [email protected] 3 points 1 year ago

You quoted those two sentences, but skipped the three sentences right before them:

BCM2712 supports HEVC 4K60 hardware decoding. It no longer supports H264 in hardware. This might sound odd but it removes the RPi4’s 1080p restriction on H264 decoding and the 4K H264 test media we have has played.

To my eyes this implies it works fine for 4K h264. The sentences you quote from are sort of a "furthermore, at 1080p it can handle these more complex codecs as well" to my initial reading.

I'm not saying you're wrong, just explaining why I parsed this paragraph a bit differently.