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Adobe To Open Real-Time Messaging Protocol
synodinos writes "Adobe has
announced plans
to publish the Real-Time Messaging Protocol specification, which is
designed for high-performance transmission of audio, video, and data between
Adobe Flash Platform technologies. This move that has followed the opening of
the AMF spec has been
received with varying degrees of enthusiasm from the RIA community."
..."Abobe"?!
Seems that someone confused their b with their d. It happens a lot with kids in preschool and kindergarten.
I knew that the Slashdot readership was getting younger, but I didn't realize HOW young!
Javascript + Nintendo DSi = DSiCade
Which proves two things:
GP doesn't know WTF they're talking about... ...but they're right. PDF is an open standard, implemented by other vendors in a way that sucks, yet Acrobat still sucks.
In fact, Adobe has never really been known for performance. For another fun test, take a Flash video, download the FLV, and play it in any other player. Compare CPU usage.
Last I tried this, in Flash, it was over 50% of a core. In VLC, or mplayer, or pretty much anything else -- despite the fact that this is FLV, which is presumably designed for Flash -- and it's less than 1%.
Don't thank God, thank a doctor!
Not really.
First, it's got the same problem as any other proprietary application which opens specs -- there's only one implementation, and that implementation is proprietary. Most specs at least include a reference implementation.
More importantly, how long have the specs been open? Last I checked, they were only open for developing anything but a client/viewer.
Don't thank God, thank a doctor!
Search on google for: gnash clean room
What you will find is that Adobe made it difficult to legally work on an open source viewer, and that the specs that exist are either (1) leaked, and therefore it is questionable whether you can legally use them, or (2) from a clean room reverse engineering.
From: http://lwn.net/Articles/270056/
Gnash development has been done using a Clean room reverse engineering technique. By agreeing to the license for the Adobe (formerly Shockwave) Flash player, a developer gives up the right to develop a competing product.
From: http://www.gnashdev.org/?q=node/30
Rob: The Adobe EULA for Flash forbids anyone who has installed their Flash tools or plugin from working on Flash technologies. This has had a chilling effect on the development of free Flash players, since a developer must either choose to decide that Adobe won't sue them over this, or to do what Gnash does, which is a slow and inefficient, clean room, reverse engineering project.
Adobe has declined to comment on this issue, since the confusion benefits their lockin of the market. Although Adobe has said they support Open Source projects, and donated Tamarin to Mozilla, we'd love to see a public statement that Gnash developers won't be subject to a lawsuit. It's very difficult to find developers that have never installed the Adobe software ever, which is what we've been doing to maintain our clean room approach.
From: http://www.openmedianow.org/?q=node/21
Savoye suggests that, "Most of this documentation, if we really wanted it, has already leaked out on the Internet years ago."
On windows, try Foxit Reader. If you must stick with acrobat reader, disable all the plug-ins you don't need. They massively increase the loading time.
Not a sentence!
HTTPHeaders can be as useful as anything else.
It will list the full URL of every html, image, css, js, and flv requested from the server for the current page.
Simply copy the flv URL and paste stright back into the browser ... instant save-as prompt and your done :-)
I'm dyslexic you intense clog!
Slashdot's rate-of-post filter: Preventing you from posting too many great ideas at once.
Um, RTMP is not a chat protocol. It is a protocol for stateful connections with multiplexed streams for downloading large amounts of media with real-time responses and quality of service requirements. It is what the Flash Player uses to download audio and video from servers. See Wikipedia. Next time, look up the topic before spouting off.
I've written code that deals with PDF, both in terms of parsing and rendering it, as well as generating it. PDF is a great format. It certainly doesn't have the difficulties associated with, for instance, PostScript. Adobe's products might have poor performance but this is not due to the file format, which is NOT proprietary but actually quite well-documented.
I have no idea what sorts of crazy things happen inside Adobe's code. Suffice it to say, none of that is mandated by the PDF format.