jon_dahl

20 ms·

151.
by jon_dahl 15y ago
This only works if Dave's capacity for responding to email is greater than the amount of email he actually gets. What happens if Dave never wants to spend more than 16 hours per day on email (a reasonable assumption), and his total incoming
152.
by jon_dahl 15y ago
Isn't this ultimately up to the congestion control algorithm that is used alongside of UDP? Aspera and UDT, for example, have tunable congestion control that can be more or less greedy. I'm not a protocol hacker, so hopefully one will weigh
153.
by jon_dahl 15y ago
This automated approach is fine, but only if you don't try to pretend it's personal. SlideRocket does this really well - sign up for SlideRocket and watch the helpful emails roll in. Not too many, and always with a good tone and good conten
154.
by jon_dahl 15y ago
Definitely - this is important as a control. Every test was done using the same core settings (codecs, profiles, resolution, frame rate, bitrates, two-pass encoding). Beyond that, CloudHarmony used the default settings at each provider. We'
155.
by jon_dahl 15y ago
Here you go: ffmpeg rules. Zencoder, Panda, and Encoding.com use it. Sorenson doesn't. That's part of the reason why our video quality > Sorenson. Also here: http://zencoder.com/opensource . Big shout outs to x264, libavcodec, gpac, me
156.
by jon_dahl 15y ago
Sure, it could be a scam. But for what it's worth, it's not - we absolutely didn't cheat. Cheating in a benchmark might work some places, but it certainly doesn't work for a company that sells to hackers. If you want to verify the results y
157.
Benchmarking cloud video encoding: Zencoder, Encoding.com, Sorenson, & Panda(blog.cloudharmony.com)
43 points by jon_dahl 15y ago|25 comments
158.
by jon_dahl 15y ago
YC companies definitely hire non-engineers. But often the first few hires will be engineers; at Zencoder, we were 7 engineers and 1 business/office manager before we hired for sales/marketing. We're currently looking for a marketing manager
159.
H.264 encoding: CPU vs GPU - a critical comparison(behardware.com)
4 points by jon_dahl 15y ago|0 comments
160.
by jon_dahl 15y ago
It took me two or three tries, but now I put 2-6 up there with the first book. I think the reason people have trouble with 2-6 is that they're ultimately a reversal or deconstruction of the Hero myth. The first book is a fairly typical "Ris
161.
by jon_dahl 15y ago
Zencoder, based in San Francisco. We process millions of videos in the cloud, for large and small customers, via awesome APIs. We're looking for Sales, Marketing, and Engineering interns. * Engineering interns should know Ruby/Rails with a
162.
by jon_dahl 15y ago
Tools like mencoder, On2 Flix Engine, and GStreamer are alternatives, but they share a lot of code with ffmpeg (including the ubiquitous libavcodec). If you want to avoid this altogether, you have a few options, though none of them are as s
163.
by jon_dahl 15y ago
Sorry for the slow response. For the most part, it's not tricks, at lest for now - more like using the best available software for resampling, channel mapping, etc. We don't (for instance) automatically mess with normalization/gain, though
164.
by jon_dahl 15y ago
Yep, unfortunately we can't right now. Maybe down the road?
165.
by jon_dahl 15y ago
It sounds a bit better outside of Flash, actually. Flash prefers 22050 or 44100 audio and doesn't do a great job of resampling others up to 44100 (which I think is what happens behind the scenes). Give it a listen in Chrome or some such and
166.
by jon_dahl 15y ago
Sure. FLAC is great, and it's on our roadmap. We're in a funny place right now where both higher bitrate and lower bitrate video/audio are becoming increasingly important. Low bitrate because of mobile video and adaptive bitrate streaming,
167.
by jon_dahl 15y ago
I'd say this is well known with anyone working with open source video tools. And yet it's still in use all over the place, sadly.
168.
by jon_dahl 15y ago
Yep, we didn't write our own encoder - we evaluated and licensed a third party encoder. Article edited to make this more clear. The problem (at this point at least) is that our software licensing agreement with the third party includes conf
169.
by jon_dahl 15y ago
Yes - iTunes uses Quicktime, and Quicktime has one of the better AAC encoders. Unfortunately, it's not easily executable (or licensable) on Linux.
170.
Major improvements to audio at Zencoder, and why this matters(blog.zencoder.com)
63 points by jon_dahl 15y ago|23 comments
171.
by jon_dahl 15y ago
I don't think you have to be invited. Though it's probably hard to get a meeting, just like it is with any VC. Google Ventures is fairly similar to traditional venture capital, but with more support provided to portfolio companies. Andreess
172.
by jon_dahl 15y ago
San Francisco, CA - Zencoder Zencoder is putting video infrastructure in the cloud. We're growing, our customers love us, and we have the best technology in the industry. Always interested in hearing from awesome people, but we're especiall
173.
Comparing HTML5 video players (mediacore.com)
11 points by jon_dahl 15y ago|0 comments
174.
by jon_dahl 15y ago
If he has a board seat, then yes, he should have some say here. But it's really unlikely that he has a board seat. An early stage investor has very little authority over what a startup does. At best, they may have some advisory influence wi
175.
by jon_dahl 15y ago
I'll be moving from Minneapolis to SF soon. Before spending significant time in the Bay Area, I thought that the noise/saturation/and "meh" were a problem, but my experience was different. It's a very supportive environment, with a lot of s
176.
by jon_dahl 15y ago
We considered that at one point. The problem: if we slow down our encoding, we make more money. If we optimize, we make less money. We want to align our incentives with our customers, and we're focused on being as fast as possible. That sai
177.
by jon_dahl 16y ago
Nothing at first, though we do validate that frame_rate is <= 300. We'd maybe even applaud you as the first user to try this. (Then we'd ask you to stop.) A FPS-based pricing change is on our radar, though. In both directions: low frame
178.
Raising money in the 21st century, or: Why Zencoder raised $2M(zencoder.com)
33 points by jon_dahl 16y ago|5 comments
179.
by jon_dahl 16y ago
Probably because the parent was a detailed, well-researched answer, and your request for clarification didn't explain what sort of clarification you were looking for. The second one, on the other hand, was downvoted for asking why you were
180.
Be honest with your employees(sachin.posterous.com)
6 points by jon_dahl 16y ago|0 comments

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