padenot

9 ms·

31.
by padenot 3y ago
https://firefox-source-docs.mozilla.org/contributing/stack_q... . It's then two clicks to diff two arbitrary versions of a particular patch. For complex patch sets that take a few rounds of review, it's nice t
32.
by padenot 3y ago
I use GitHub everyday, and problems, or what I miss from the mozilla stuff are: - git is not as modern as mercurial (no absorb, no evolve, no nice ncurse gui, weird explicit branching model). I've been using both daily for more than te
33.
by padenot 3y ago
It's one command to clone from git or hg at your convenience, one line to install the development dependencies (that figures out the os/distro and does the right thing) and one line to build. Then one line to install the command l
34.
by padenot 4y ago
The mp4 demuxer is indeed in Rust [0], and runs in the content process (= the process in which the web page is loaded). We don't have a h264 decoder in our source tree, we use the platform's decoder (because of patents). It's
35.
by padenot 4y ago
Firefox vendors a subset of ffmpeg, to decode royalty free codecs such as vp8/9, mp3, flac, on all OSes. We're using our own decoders/demuxers for other royalty free codecs for historical reasons. It can also use the system&#
36.
by padenot 4y ago
This is in the works. It's the same codebase as the desktop version, which is written in js. I've tested it on low end Android phones from 2017, it works well, when compared to the native offering, and also on modern high end phon
37.
by padenot 5y ago
I'm not sure how many Windows users RtAudio has, and the kind of machines people are using with it, and their expectations, but in Firefox, the answer is hundreds of millions and "any kind of machine that has existed", such a
38.
by padenot 5y ago
I work on the Web Audio API at Mozilla, here is an article that I wrote that explains what goes wrong here, distilled to the core: implementing a metronome in literate programming in a way that will _never_ glitch: https://blog.p
39.
by padenot 6y ago
Can you give us a couple of these crashes, that you can find in about:crashes (with the date sometimes its easy to find the right one) ? If you send a link to padenot@mozilla.com I can have a look, I'm on the media team at Mozilla (tha
40.
by padenot 6y ago
The above is correct. The CDM is very heavily sandboxed, a signature is used, and therefore it can't really do anything apart from what it's supposed to do (which is very little, taking encoded data, a key, decode media). Source:
41.
by padenot 6y ago
Firefox audio developer here, would you mind giving me a link to a couple of those "spatial audio tools" that don't work in Firefox?
42.
by padenot 6y ago
Would you mind capturing a profile? https://blog.paul.cx/post/profiling-firefox-media-workloads/... explains how. It's very very very simple and quick, there is a video demo and a text explaining what to do,
43.
by padenot 6y ago
Firefox media developer here. It's a bit hard to understand what the problem is, sorry. You can block video and sound auto-play altogether, or just audio, or none, in `about:preferences#privacy`, and choose or check exceptions you&#x27
44.
by padenot 6y ago
It's already enabled and lots of people use it, although it's not compiled in on the mozilla-provided builds (but downstream builders enable it).
45.
by padenot 6y ago
Hi, I work at Mozilla doing audio programming for Firefox, I see in your about page that you have issues with the Web Audio API, ping me (same nick a bit everywhere on the web, and also @mozilla.com) and we'll answer any question or fi
46.
by padenot 6y ago
> Then you could add some sort of ctrl-p style fuzzy search that includes both url and content. Try focusing the URL bar in Firefox and prefixing your query with '%'. https://support.mozilla.org/en-US/kb&#
47.
by padenot 6y ago
It's unlikely that AudioWorklet will fix a video call issue (zoom is alone in using it, because it doesn't use regular WebRTC facilities), but we're aware of performance issues, and they are being addressed. In particular the
48.
by padenot 6y ago
Jitsi doesn't use AudioWorklet as of now (and doesn't need to). We're continuing the work so that jitsi works well in Firefox, there are a few things remaining, but less so than a few weeks back (I'm more on the audio si
49.
by padenot 7y ago
Yes this is what I meant when I said "by the websites themselves".
50.
by padenot 7y ago
Firefox has supported stereo opus for a very long time (four years at least?). We know it works, it's used by medical professionals for their job and they wrote a message a few month thanking us for this feature, that doesn't seem
51.
by padenot 7y ago
This audio processing is trivially deactivable by the websites themselves. Instead of doing: > navigator.mediaDevices.getUserMedia({audio: true}).then(...) to get a stream of the input device, one can do: > navigator.mediaDevices.getU
52.
by padenot 7y ago
This is incorrect. Zoom doesn't use webrtc audio and video channels, only data channels, and has reimplemeted audio and video channels on top of that, doing the decoding in js and probably wasm. They also limit the resolution to 480p f
53.
by padenot 7y ago
We're currently rewriting most of the graphics rendering of Firefox (with what is called the WebRender project). This is the first time Linux users will have hardware accelerated rendering by default, and is a pre-requisite to take rea
54.
by padenot 7y ago
Would you mind filing a bug at [0] with the content of about:support and maybe a link or two where it doesn't work? Happy to have an initial look into this (I work on the media team at Mozilla). [0]: https://bugzilla.mozilla
55.
by padenot 7y ago
You'll be happy to hear that we've recently dramatically improved the audio quality of sped up (and slowed down) videos, here is the ticket for the details: https://bugzilla.mozilla.org/show_bug.cgi?id=1427267 . Th
56.
by padenot 7y ago
Firefox already supports something like this if you go to about:config and flip `privacy.resistFingerprinting` to true. It's not finished/perfect, but changes a lot of things.
57.
by padenot 7y ago
This is not at all the code to embed SpiderMonkey in Firefox, those are the bindings from DOM APIs to the implementation of those APIs in Firefox. Above that, calling into this layer, is another layer that transforms JS calls into C++ calls
58.
by padenot 7y ago
We don't do hardware decoding on Linux for now, because we don't do hardware acceleration for graphics by default on Linux. Web Render might allow doing it properly, since the rendering is not on the CPU anymore.
59.
by padenot 7y ago
Safari does not support vp8 or vp9 when playing youtube, and youtube serves h264 instead. h264 is less efficient in terms of compression ratio (more to download for the same quality), but h264 is decoded in hardware on OSX, and VP8 or VP9 i
60.
by padenot 7y ago
Yes, Nightly is (I'm simplifying a bit but it's generally true) release + a few weeks of patches + different default settings, sometimes experimental things enabled, etc. I'm running Nightly on OSX and I confirm all those imp

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