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• Started Programming Young

  6 septembre 2011, par Multimedia Mike — Programming

  I have some of the strangest memories of my struggles to jump into computer programming.

  Back To BASIC
  I remember doing some Logo programming on Apple II computers at school in 5th grade (1987 timeframe). But that was mostly driving turtle graphics. Then I remember doing some TRS-80 BASIC in 7th grade, circa 1989. Emboldened by what very little I had learned in perhaps the week or 2 we took in a science class to do this, I tried a little GW-BASIC on my family’s “IBM-PC compatible” computer (they were still called that back then). I still remember what my first program consisted of. Even back then I was interested in manipulating graphics and color on a computer screen. Thus :

  10 color 1
  20 print "This is color 1"
  30 color 2
  40 print "This is color 2"
  ...
  

  And so on through 15 colors. Hey, it did the job– it demonstrated the 15 different colors you could set in text mode.

  What’s FOR For ?
  That 7th grade computer unit in science class wasn’t very thick on computer science details. I recall working with a lab partner to transcribe code listings into a computer (and also saving my work to a storage cassette). We also developed form processing programs that would print instructions to input text followed by an “INPUT I$” statement to obtain the user’s output.

  I remember there was some situation where we needed a brief delay between input and printing. The teacher told us to use a construct of the form :

  10 FOR I = 1 TO 20000
  20 NEXT I
  

  We had to calibrate the number based on our empirical assessment of how long it lasted but I recall that the number couldn’t be much higher than about 32000, for reasons that would become clearer much later.

  Imagine my confusion when I would read and try to comprehend BASIC program code I would find in magazines. I would of course see that FOR..NEXT construct all over the place but obviously not in the context of introducing deliberate execution delays. Indeed, my understanding of one of the fundamental building blocks of computer programming — iteration — was completely skewed because of this early lesson.

  Refactoring
  Somewhere along the line, I figured out that the FOR..NEXT could be used to do the same thing a bunch of times, possibly with different values. A few years after I had written that color program, I found it again and realized that I could write it as :

  10 for I = 1 to 15
  20 color I
  30 print I
  40 next I
  

  It still took me a few more years to sort out the meaning of WHILE..WEND, though.

• Online video editing server for streaming content

  23 février 2014, par netCreate

  I'm looking for software that will enable me to make online video editing for streaming content.
  I do have background with FFmpeg (as video multiplying), MLT framework and Red5 as streaming server.

  Now what I need to do is to be able to stream online content and modify it - add layers and effects online.

  I know how to do this thing offline with Kdenlive or generate MLT scripts. I want to be able to to this online.

  What should I do to enable online editing ?

• Online Server with Local Storage + FFMPEG

  25 mars 2014, par user2876479

  I'm making a website that uses videos from local hard disk as well as online.

  The website will be online and all the infos are pulled from online server & online database. But videos are pulled from local harddisk if found locally, otherwise pulled from online server. Is this possible ?

  BTW, planning to host it in hostgator with normal account.

  Also, I'm converting high res videos into low res with ffmpeg using exec.

  Does anybody using this website has to install local server like wamp and ffmpeg in their local system to get all these features ?

  SORRY I'M NEW TO WEB DEVELOPMENT. MY QUESTIONS MAY BE FUNNY. BUT I'M LEARNING.