Re: BUG: Converting GIF to PNG fails with SIGSEGV

Jan Kandziora <[email protected]> Thu, 17 Jul 2008 19:09:08 +0200
Newsgroups gmane.comp.video.graphicsmagick.bugs
Message-ID <[email protected]>
Am Donnerstag, 17. Juli 2008 18:28 schrieb Bob Friesenhahn:
> gm convert -debug coder pixel_black.gif a.png
>
[jan@janskiste ~]$ gm convert -debug coder pixel_black.gif a.png
19:07:45 0:01 0.000u 5774 constitute.c/GmReadImage/5997/Coder:
  Invoking "GIF" decoder (CompuServe graphics interchange format)
19:07:45 0:01 0.000u 5774 constitute.c/GmReadImage/6005/Coder:
  Returned from "GIF" decoder: monochrome=False grayscale=False 
class=PseudoClass colorspace=RGB
19:07:45 0:01 0.000u 5774 constitute.c/GmWriteImage/6532/Coder:
  Invoking "PNG" encoder (Portable Network Graphics): monochrome=True 
grayscale=True class=PseudoClass colorspace=RGB
19:07:45 0:01 0.000u 5774 png.c/WritePNGImage/7345/Coder:
  enter WritePNGImage()
19:07:45 0:01 0.000u 5774 png.c/WriteOnePNGImage/5989/Coder:
    enter WriteOnePNGImage()
19:07:45 0:01 0.000u 5774 png.c/WriteOnePNGImage/6085/Coder:
      width=1
19:07:45 0:01 0.000u 5774 png.c/WriteOnePNGImage/6087/Coder:
      height=1
19:07:45 0:01 0.000u 5774 png.c/WriteOnePNGImage/6089/Coder:
      image->depth=8
19:07:45 0:01 0.000u 5774 png.c/WriteOnePNGImage/6100/Coder:
      ping_info->bit_depth=8
19:07:45 0:01 0.000u 5774 png.c/WriteOnePNGImage/6178/Coder:
      Setting up bKGD chunk
19:07:45 0:01 0.000u 5774 png.c/WriteOnePNGImage/6376/Coder:
      Tentative PNG color type: Gray+Alpha (4)
19:07:45 0:01 0.000u 5774 png.c/WriteOnePNGImage/6380/Coder:
      image_info->type: 0
19:07:45 0:01 0.000u 5774 png.c/WriteOnePNGImage/6382/Coder:
      image->depth: 8
19:07:45 0:01 0.000u 5774 png.c/WriteOnePNGImage/6384/Coder:
      ping_info->bit_depth: 8
Segmentation fault
[jan@janskiste ~]$

Kind regards

	Jan
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