TD-Linux

14 ms·

121.
by TD-Linux 7y ago
It's enabled on Linux on 67+ (currently Beta).
122.
by TD-Linux 7y ago
You could add this to the standard library in the future. There is already the 1d version of this (slices). But you don't need to - it would be perfectly fine to live on its own.
123.
by TD-Linux 7y ago
It's a permanent magnet motor. It's an IPM design so some amount of the torque comes from reluctance, but the majority of the efficiency is from the permanent magnets providing the field rather than having to burn energy through t
124.
by TD-Linux 8y ago
Verilator is only a simulator, once you want to run it on a fpga you use yosys + nextpnr. The icestick is a popular and cheap choice to get started, there is also the TinyFPGA BX and iCEBreaker if you would like a few more features.
125.
by TD-Linux 8y ago
One cool thing you can do with Verilator is use the API to simulate other hardware. For example, here's a Verilog Gameboy being simulated realtime by simulating the display attached to it: https://twitter.com/zephray_we
126.
by TD-Linux 8y ago
The GP shows both avc1 and av01, the latter of which is AV1.
127.
by TD-Linux 8y ago
Firefox Nightly switched to dav1d, which for many users is only going to use a fraction of their CPU. https://code.videolan.org/videolan/dav1d/issues/15#note_2345... It will still be a measurable difference i
128.
by TD-Linux 8y ago
ST fixed their STM32Cube licenses so that most of it is BSD licensed, but yeah I also agree that libopencm3 is great. ST has good datasheets that allow anyone to easily create their own HAL or set things up directly if needed. There's
129.
by TD-Linux 8y ago
The (optional) GPU is a Vivante core, which is great because it's supported by free software drivers and Mesa support. Given the generally good free software support that ST gives, plus the mainline Linux support landing over a year ea
130.
by TD-Linux 8y ago
AV1 also uses the brand new media codec sandboxing feature (RDD process). It has platform specific code, hence why only Windows was ready by 65 (but Mac + Linux should be available soon).
131.
by TD-Linux 8y ago
The site is actually a bit out of date, the ECP5 bit (Project Trellis) and nextpnr are already working: https://github.com/YosysHQ/nextpnr
132.
by TD-Linux 8y ago
You either write an entire separate asm function, or use macro utilities to ifdef portions of the function. See for example: https://git.ffmpeg.org/gitweb/ffmpeg.git/blob/HEAD:/libavcod...
133.
by TD-Linux 8y ago
Nitrokey, the manufacturer of the Librem Key, has a U2F key available for preorder.
134.
by TD-Linux 8y ago
Already done. Check out a-frame: https://aframe.io/ Bonus points for doing it in Firefox Reality or another VR browser.
135.
by TD-Linux 8y ago
Yeah there is, if you go to some of the sites on the home page there's an "enter VR" button, where the site does the equivalent of fullscreen for VR (it enters VR mode and it's much like a VR app).
136.
Firefox Reality Now Available(blog.mozilla.org)
301 points by TD-Linux 8y ago|136 comments
137.
by TD-Linux 8y ago
It's not an Open Source license either, violating criteria 5 and 6 of the definition. https://opensource.org/osd-annotated
138.
by TD-Linux 8y ago
The MIT license has no restriction on applying additional restrictions, without the permission of the contributors. For example, MIT licensed software can be used in proprietary software.
139.
by TD-Linux 8y ago
The article doesn't say that 1 human = 100GB anywhere. It does say a reference genome is ~1GB, which sounds similar to a zipped FASTA. 500k humans would make this 400TB of data. Really not that much, especially compared to the $500 mil
140.
by TD-Linux 8y ago
This article totally failed to justify why compression algorithms are so important for this application. How big is the human genome, how much can we compress it by, and why does this matter? I took a look and zipped FASTA files are about 8
141.
by TD-Linux 8y ago
I'm disappointed this didn't launch with the i7-8809g as was rumored - having an AMD GPU would be far better for a Linux machine.
142.
by TD-Linux 8y ago
Virtually all of the consumed memory is from the reference frames, so it depends on how big your video is. AV1 supports up to 8 reference frames, though if you're memory constrained you could use less. Different encoders produce differ
143.
by TD-Linux 8y ago
I actually had a realtime rav1e demo running, with some modifications. There's nothing inherently less realtime about AV1 than, say H.264.
144.
by TD-Linux 8y ago
AV1 isn't just for 4K, though. Netflix recently showed a demo of 720p AV1 at only 200kbps. It should massively improve the low end - in fact, maybe the low end first because lower resolution streams are the fastest to encode.
145.
by TD-Linux 8y ago
The AI services are accessed through a built in LTE modem. So you can't really filter it even if you wanted to.
146.
by TD-Linux 8y ago
None, so a separate FEC can still be useful. You can use FEC like described in the article with WebRTC: https://tools.ietf.org/html/draft-ietf-rtcweb-fec-08
147.
by TD-Linux 8y ago
fMP4 has an index for each chunk, so you have to buffer the whole thing to create the index on the writing side. However, with DASH you do have the option for WebM as well, which does not need and index and can be streamed. Or really small
148.
by TD-Linux 8y ago
The author of the OP has an article about DAI too: https://prestonbyrne.com/2018/01/11/epicaricacy/ Doesn't seem so hot to me, and what happens when the bot runs out of capital?
149.
by TD-Linux 8y ago
It would also play back flawlessly even without the hardware decoder, because H.264 is so fast to decode nowadays. If AV1 is fast enough it can allow people to use AV1 without buying new hardware.
150.
by TD-Linux 8y ago
FLIF has much better lossless compression than AV1 but much worse lossy compression.

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