Kostya's Boring Codec World

Today I’d like to talk about how opensource projects are supported by “community” on example of FFmpeg/Libav.

Obviously I’ve chosen this example because I know some facts about internal politics and the fact libavcodec is de facto multimedia decoding standard used on every platform and by most multimedia processing tools out there.

What good did it bring to the project(s)? Some fame but that’s probably it—the largest users don’t even bother to acknowledge in public that they use it (cough, BaidUTube, cough). There’s an enormous amount of code (that serves as a good compiler suite too) but it’s maintained mostly by volunteers and people who have to use it at work (as they were hired because they worked on it in the first place). That’s it: the best material gain is an employment because you’ve showed off your skills or you can take occasional consulting work with varying quality of tasks and pay. Some people are paid to improve or write new decoder. Some are hired to work on improving protocol support and hardly paid at all (true story). Some simply sigh at yet another “please implement this for my app” mail. That’s good but where are the money to pay for task the project itself (e.g. refactor old horrible code, add tests, implement new feature or fix some old problem)?

There was an attempt to set up a foundation to gather money and use them for the project but it didn’t work well even before the split and got completely derailed after; and of course it was not a good idea to set it up in the USA since IRS refused to recognize it as non-profit organisation as other open-source projects have experienced (including X.org). The best part is how much money it could raise—I don’t remember the actual sum but it was relatively low like less than $20,000 (please correct me if I’m wrong) and it came mostly from caught (L)GPL violators IIRC.

Let’s take a successful opensource project that uses libavcodec, that would be VLC. For example, last VideoLAN Developer Days definitely costed tens and tens of thousands ${proper_currency} — for accommodating about hundred of people, reimbursing (at least some of) their travel costs, food etc etc; the event was sponsored by the largest Internet advertising company, the largest French advertising company and the largest French VideoLAN advertising company. I remember talks that they could even employ one developer full-time. And would VLC be any useful without libavcodec? And while they probably are the biggest opensource supporter of FFmpeg (they host their Git repository after all) and their developers write some code time from time they hardly do anything else—there is a bounty program but it’s a complete joke since it lists mostly done tasks nobody will claim reward for (and despite me pointing them to that fact nothing has been done). And obviously it doesn’t have tasks that would be beneficial for FFmpeg/Libav but not for VLC directly.

Let’s take a look at some commercial user. All those video hosting sites are available mostly because there’s enough bandwidth to stream video and because there is free code to support most of the formats uploaded by users so they don’t have to bother about details. And that free code is… (no points for guessing). And the biggest video hosting site was mentioned above. They don’t provide any support nor even acknowledge that they use certain opensource projects. Of course one can point to Baidu Summer of Code program but it’s for involving students into opensource (and probably finding fresh meat for themselves) and it doesn’t work that good for projects—you mostly have students willing to get money and/or credit for résumé. They tend to do the task and disappear completely. I’m sure that projects would prefer to have financial freedom instead to sponsor specific tasks that could be undertaken by anyone (not just students) and last whatever time is needed (not just summer). If the project gets some support from large companies it’s usually because a developer from that project working in that company convinced the management to do so.

Even worse is the situation with distributions because they tend to demand free technical support from you: fixing your own bugs, fixing other projects that use your code and such. What do you get in return? Nothing. The recent Debian and Xscreensaver messup is not some special example, it’s too typical.

It’s funny how the best sponsor for Libav might be Lu_minem.it—a small Italian company whose founder is Libav developer and thus knows what the project needs.

How do I fit into all of this? I was FFmpeg and then Libav developer, later a multimedia related work has found me because of my work on decoders (I’d been trying to find a good job myself but failed and had to accept the best offer I got). I was around core developers of the projects and thus could learn the facts written above. What have I got beside developing experience, acquaintances and pessimistic outlook on life? BSoC 2006-2009 participation (where I managed to finish only one project in time really despite the formal passing of it) plus some smaller sum of money for rewriting a component of swscale to make it LGPL. And some free dinners from VideoLAN foundation. So I’m fine but seeing that the project cannot afford paying a developer for some internal project (like writing a new RealMedia demuxer) is still very sad.

This entry was posted on Friday, April 22nd, 2016 at 2:54 pm and is filed under Useless Rants. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.