Recherche avancée

Sur d’autres sites (6871)

• Running ffplay video within a jframe

  22 juillet 2013, par Optimus Prime

  I wish to play a video in JFrame. I am already using ffmpeg in my project. As I wish to keep the project light, I am not willing to use other frameworks like JMF or other. I know that I can play video using ffplay. But the problem here is ffplay opens the video in new window when I try

  ffplay output.avi

  I wish to put that video within my JFrame, like a player. How can I do this ?

  Request :
  Please ask for any other clarifications, details, and suggest improvements or comment what you find wrong before downvoting or voting to close the question :). I will change it. I am really new to Java, I tried searching this but could not find any possible solution.

  What I tried ? I couln't find anything related to this, so I don't have any code. I am familiar to how to create frames, and can use runtime to ffplay video. But I got no clue how to put that video within my window :(.

  All suggestions are welcome if you can suggest me other methods to play the video. But I haven't use any frameworks other than ffmpeg. And do not wish to make the application heavier. So it would be more helpful if it can be achieved using ffplay.

• Trolls in trouble

  6 juin 2013, par Mans — Law and liberty

  Life as a patent troll is hopefully set to get more difficult. In a memo describing patent trolls as a “drain on the American economy,” the White House this week outlined a number of steps it is taking to stem this evil tide. Chiming in, the Chief Judge of the Court of Appeals for the Federal Circuit (where patent cases are heard) in a New York Times op-ed laments the toll patent trolling is taking on the industry, and urges judges to use powers already at their disposal to make the practice less attractive. However, while certainly a step in the right direction, these measures all fail to address the more fundamental properties of the patent system allowing trolls to exist in the first place.

  System and method for patent trolling

  Most patent trolling operations comprise the same basic elements :

  1. One or more patents with broad claims.
  2. The patents of (1) acquired by an otherwise non-practising entity (troll).
  3. The entity of (2) filing numerous lawsuits alleging infringement of the patents of (1).
  4. The lawsuits of (3) targeting end users or retailers.
  5. The lawsuits of (3) listing as plaintiffs difficult to trace shell companies.

  The recent legislative actions all take aim at the latter entries in this list. In so doing, they will no doubt cripple the trolls, but the trolls will remain alive, ready to resume their wicked ways once a new loophole is found in the system.

  To kill a patent troll

  As Judge Rader and his co-authors point out in the New York Times, “the problem stems largely from the fact that, [...] trolls have an important strategic advantage over their adversaries : they don’t make anything.” This is the heart of the troll, and this is where the blow should be struck. Our weapon shall be the mightiest judicial sword of all, the Constitution.

  The United States Constitution contains (in Article I, Section 8) the foundation for the patent system (emphasis mine) :

  The Congress shall have Power [...] To promote the Progress of Science and useful Arts, by securing for limited Times to Authors and Inventors the exclusive Right to their respective Writings and Discoveries.

  Patent trolls are typically not inventors. They are merely hoarders of other people’s discarded inventions, and that allowing others to reap the benefits of an inventor’s work would somehow promote progress should be a tough argument. Indeed, it is the dissociation between investment and reward which has allowed the patent trolls to rise and prosper.

  In light of the above, the solution to the troll menace is actually strikingly simple : make patents non-transferable.

  Having the inventor retain the rights to his or her inventions (works for hire still being recognised), would render the establishment of non-practising entities, which most trolls are, virtually impossible. The original purpose of patents, to protect the investment of inventors, would remain unaffected, if not strengthened, by such a change.

  Links

  • Taking on Patent Trolls to Protect American Innovation
  • Fact Sheet : White House Task Force on High-Tech Patent Issues
  • Make Patent Trolls Pay in Court
  • Constitution of the United States

• JavaCV in Android : FFmpegFrameGrabber Class not found exception

  30 septembre 2014, par Sunshinetpu

  I want to create a video from images. So I tried to import JavaCV into Android project with the following guide :
  http://javacv4android.blogspot.com/2014/02/how-to-import-javacv-libraries-to.html
  But I have got error
  FFmpegFrameGrabber Class not found exception
  I don’t know how to fix the problem.
  Can any body help me ?
  Thanks a lot for advices.