Ergebnis der Suchanfrage

• Forum: Multimedia

  AW: extract frames from png animations

   
    by Cosmin, 20. Mär 2016
  @FarAndBeyond
  
  That function seems to do ONLY png decompression of a frame received through its parameters.
  But what I didn't find is how that frame is assembled from fdAT and IDAT chunks.
  
  I also tried that library in Lazarus but couldn't make it work.
  
  @Luckie
  
  The reason my code isn't working is not because is buggy, is because is not finished. And is not finished because I can't find...
• Forum: Multimedia

  AW: extract frames from png animations

   
    by Cosmin, 20. Mär 2016
  Just to see what I'm trying to do.
  
  Here is a test application: https://drive.google.com/open?id=0ByKxAD_t9uvLVWZFYVlFQ1BzVlU
  
  And here are some test files:
  
  https://drive.google.com/open?id=0ByKxAD_t9uvLWVZKcXdmb00zSmc
  https://drive.google.com/open?id=0ByKxAD_t9uvLRU9COFFmTUtjS1k
  https://drive.google.com/open?id=0ByKxAD_t9uvLZVRUa2tGZEYybGs
• Forum: Multimedia

  AW: extract frames from png animations

   
    by Cosmin, 20. Mär 2016
  Correct. And the 3 streams too.
  The code is just in "getting results" stage, so the nonreleasing used memory did not seem so important since in this moment I use the code only for tests in Delphi.
  But thank you.
  
  
  
  You could be right, although this code seems simple to me + breaking the code into small procedures affects the overall speed.
  
  
  @FarAndBeyond
• Forum: Multimedia

  AW: extract frames from png animations

   
    by Cosmin, 19. Mär 2016
  Thank you :)
  
  
  
  Didn't mentioned it because it's very old, very complex and I couldn't install it in Delphi XE8.
  I tried it this morning to manually "trace" how apngs are loaded (in the pas files). After a few hours, tired and hungry, I gave up :(
  
  
  
  Exactly about them I was talking about.
• Forum: Multimedia

  extract frames from png animations

   
    by Cosmin, 19. Mär 2016
  Hi.
  
  Sorry in advance for using english language.
  
  Delphi version: XE8 update 1
  OS: Windows 8.1 x64
  
  I'm trying to build a code for extracting png frames from apng (png animation) files (preferably in a memory stream).
  I found some examples on internet, but none in Delphi/Pascal language. Plus they weren't very well commented.