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• Play AAC in SoundManager2 won't start

  27 novembre 2012, par sasa

  I converted audio file MP4 to AAC and then want to play that file in SoundManager2. If I use some software for Windows for convert, everying is fine, audio is playing well. But, on server side when MP4 file is converted to AAC using ffmpeg, file is loaded in SM2, but playing is not started.

  I use this command :

  ffmpeg -i in.mp4 out.aac

  Here is SoundManager2 log :

  -- SoundManager 2: HTML5 support tests (/^(probably|maybe)$/i): mp3: true (preferring flash), mp4: true (preferring flash), ogg: true, wav: true -- soundmanager2.js:1156
  
  -- SoundManager 2 V2.97a.20120916 (AS3/Flash 9) + HTML5 audio, high performance mode, custom (1ms) polling, wmode: transparent, flash debug mode, flashBlock mode -- soundmanager2.js:1156
  
  soundManager::createMovie(): Trying to load /soundmanager/swf/soundmanager2_flash9_debug.swf soundmanager2.js:1156
  
  soundManager::initMovie(): Waiting for ExternalInterface call from Flash... soundmanager2.js:1158
  
  soundManager::externalInterfaceOK() (~0 ms) soundmanager2.js:1158
  
  soundManager::init() soundmanager2.js:1158
  
  soundManager: Attempting JS to Flash call... soundmanager2.js:1158
  
  (Flash): SM2 SWF V2.97a.20120916 (AS3/Flash 9) soundmanager2.js:1158
  
  Flash security sandbox type: remote soundmanager2.js:1158
  
  (Flash): JS to/from Flash OK soundmanager2.js:1158
  
  (Flash): Enabling polling, 1 ms interval soundmanager2.js:1158
  
  -- SoundManager 2 loaded (OK) -- soundmanager2.js:1156
  
  soundManager: Firing 1 onready() item soundmanager2.js:1158
  
  threeSixtyPlayer.init() soundmanager2.js:1158
  
  threeSixtyPlayer.init(): Found 1 relevant items. soundmanager2.js:1158
  
  handleClick() soundmanager2.js:1158
  
  soundManager.createSound(): ui360Sound0 (http://[private url]/out.aac?v=1350309261) soundmanager2.js:1156
  
  soundManager.createSound(): Enabling usePolicyFile for data access soundmanager2.js:1158
  
  SMSound() merged options: {
  
   id: ui360Sound0, 
  
   url: http://[private url]/out.aac?v=1350309261, 
  
   onplay: { pl.removeClass(this._360data.oUIBox,this._360data.className); t... }, 
  
   onstop: { pl.removeClass(this._360data.oUIBox,this._360data.className); t... }, 
  
   onpause: { pl.removeClass(this._360data.oUIBox,this._360data.className); t... }, 
  
   onresume: { pl.removeClass(this._360data.oUIBox,this._360data.className); t... }, 
  
   onfinish: { var nextLink; pl.removeClass(this._360data.oUIBox,this._360data... }, 
  
   onbufferchange: { if (this.isBuffering) { pl.addClass(this._360data.oUIBox,pl.css... }, 
  
   whileloading: { if (this.paused) { self.updatePlaying.apply(this); } }... }, 
  
   whileplaying: { self.updatePlaying.apply(this); this._360data.fps++; }... }, 
  
   useWaveformData: false, 
  
   useEQData: false, 
  
   usePeakData: true, 
  
   autoLoad: false, 
  
   autoPlay: false, 
  
   loops: 1, 
  
   multiShot: true, 
  
   multiShotEvents: false, 
  
   pan: 0, 
  
   stream: true, 
  
   usePolicyFile: true, 
  
   volume: 50, 
  
   useMovieStar: false, 
  
   isMovieStar: false, 
  
   bufferTime: 3
  
  } soundmanager2.js:1158
  
  (Flash): SoundManager2_SMSound_AS3: Got duration: 0, autoPlay: false soundmanager2.js:1158
  
  SMSound.play(): Attempting to load "ui360Sound0" soundmanager2.js:1156
  
  SMSound.load(): http://[private url]/out.aac?v=1350309261 soundmanager2.js:1156
  
  SMSound.play(): "ui360Sound0" is starting to play soundmanager2.js:1158
  
  fanOut: ui360Sound0: http://[private url]/out.aac?v=1350309261 soundmanager2.js:1158
  
  (Flash): start (ui360Sound0): 0 soundmanager2.js:1158
  
  SMSound._onbufferchange(): 1 soundmanager2.js:1158
  
  SMSound._onbufferchange(): 0 soundmanager2.js:1158
  
  SMSound._onload(): "ui360Sound0" loaded. 

  What can be a problem ?

• Writing Live-Multimedia-Application using OpenGL & Co. saving output to disc [closed]

  21 janvier 2013, par user1997286

  I want to write an application that does the following thing :

  • Getting Commands via ArtNET (DMX over Ethernet, a Control Protocol) for each object (called Layer)
  • each Layer could be one of the following : Live Camera Stream, Movie, Image
  • each layer could be translated, rotated or stretched
  • on each layer I can set filters (Like a Kaleidoscope Effect, Blur, Color Correction, etc.)
  • the rsulting video-stream is in the 3d-space
  • I want to display each part of the image on one Projector (in total up to 3 ones) using a TripleHead2GO (3 Projectors display a different region of my DVI-Output). Each Projecector-Image should have own Soft-Edge and Keystone parameters.
  • the resulting image will also be shown on a Preview-Screen with some Information overlay.

  I think all that should be possible with opengl and openal (for the movie audio)

  I think I'll use C++, OpenGL for Graphics, OpenAL for Audio, if needed ffmpeg for Video conversion, Ubuntu/Debian as OS.

  The software is used to do Multimedia-Shows on Concerts including Cameras & Co.

  All that should happen Live (On a FullHD output), Having i7 3770, GLX 670 and 16GB of Ram for at least 8 Layers. (4 Live-Images at once + Some Overlays like the Actors Name and some Logos)

  But now comes the question.

  Is it also Posible to do the following with that setting :

  • Writing the output Image with all the 3d translations to a Movie File (To Master a DVD later) with Audio
  • Mixing Audio from different Inputs & Files (Ambience Mics, Signal from the Sound Mixer, Playbacks from my own application) to more than one Mix (eg. one Mix for the Recording, one Mix for Live)
  • Stream that Output Complete or in Parts (e.g. the left Part of the Image) over the Network (For example, Projector 1 is near the Server, so I connect it using DVI, Projector 2+3 is connected to a Computer that receives the streams for that two projectors (with soft edge on each stream) and Screen 4 is outside the Concert Hall and shows the complete Live-Stream.
  • What GUI-Framework should I use for that ?
  • is it perhaps event performant enough to use Java for that ?
  • is it posible to use that mechanism for just rendering (eg. I have stored the cut points on Disc and saved every single camera stream to change some errors later or cut out some parts)

• Trouble with CoCCA Registry

  7 octobre 2012, par Multimedia Mike — General

  I’ve been rather despondent all week. People who see me daily could readily identify this fact. Unfortunately, the exact reason was difficult to adequately explain. The problems that nerds deal with…

  When A Domain Expires
  As a few people noticed, the multimedia.cx domain and all of it’s subdomains didn’t work this last week. The problem started on Monday, October 1. Whose fault ? Well, fundamentally, I neglected to renew the domain name in time. However, I prefer to place the blame on the .cx domain registrar, CoCCA Registry. You see, they have never developed the technology to email a domain holder with a notice that their domain is about to expire or has already expired.

  This domain is the only one I have ever held so I don’t have a lot of experience in this matter. I wondered if I was crazy for thinking it would be normal for a registrar to send an email or 2 with status updates about your domain. I get the impression from speaking with others that this is indeed normal. I have 3 different email addresses listed under my account at the registrar– 2 at multimedia.cx and a backup gmail account. I checked spam folders after this incident. Then I remembered that I have never received any email notifications from them (although password reset emails show up, so that part thankfully works). Also, their support emails are black holes.

  So, I guess the moral is : be wary of dealing with CoCCA Registry. However, they seem to be the only way to register domains under a wide variety of uncommon country codes.

  By Friday, the domain appeared to have been reinstated, even through the status was officially listed as “renewal-pending” according to the web-based management console. Eventually, as cached DNS results started to time out throughout the day, I started seeing subdomains come back. I excitedly used the ‘dig’ command to count down the seconds until gamemusic.multimedia.cx was accessible on the network I was on (the number after the domain name is the time-to-live or ‘TTL’ value) :

  $ dig +nocmd gamemusic.multimedia.cx +noall +answer
  gamemusic.multimedia.cx. 3      IN      A       174.143.152.251
  $ dig +nocmd gamemusic.multimedia.cx +noall +answer
  gamemusic.multimedia.cx. 2      IN      A       174.143.152.251
  $ dig +nocmd gamemusic.multimedia.cx +noall +answer
  gamemusic.multimedia.cx. 1      IN      A       174.143.152.251
  $ dig +nocmd gamemusic.multimedia.cx +noall +answer
  gamemusic.multimedia.cx. 12962  IN      A       207.45.186.114
  

  Finally, today (Saturday), I received a receipt confirming that the domain has been renewed.

  8 Years Old
  Incidentally, happy eighth birthday to multimedia.cx. It was September, 2004 when I decided to branch out from a simple ISP-based web presence.

  People often ask why I went with the .cx TLD. When I decided I wanted a proper domain name 8 years ago, I found that multimedia.X was already taken for just about every TLD value of X. .cx was a notable exception and was distinctive enough (speaking of .X, though, I see that multimedia.xxx is still up for grabs as of this writing ; I imagine that would come with a whole other set of problems).

  It’s funny that tech nerds often rail against outsourcing too much — email, storage, computing power, web hosting — all to some type of cloud provider under the premise that it could easily be taken away. But this episode teaches me that even having your own domain name is no guarantee of a solid online presence.

  Meanwhile, I have taken proactive steps to avert this same situation from arising again :

  
  
  

  Barring a lack of automated emails from the registrar, I hope a Google Calendar reminder set up a month ahead of expiration will do the trick.