[FFmpeg-trac] #831(avcodec:closed): gif: 1bpp with transparency decodes to black screen
FFmpeg
trac at avcodec.org
Mon Dec 26 05:00:40 CET 2011
#831: gif: 1bpp with transparency decodes to black screen
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Reporter: ami_stuff | Owner:
Type: defect | Status: closed
Priority: normal | Component: avcodec
Version: git-master | Resolution: invalid
Keywords: bmp alpha | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by cehoyos):
Replying to [comment:2 beastd]:
> The patch is IMHO, as you already pointed yourself, not a good idea.
> Some picky readers might not accept the files and if Microsoft ever
decides to extend the format in
> that place the FFmpeg generated files might be invalid or misinterpreted
(rather unlikely but still).
I believe we should produce such samples if ImageMagick, GIMP or Photoshop
read them with transparency, it is possible that this only needs another
BITMAPHEADER version.
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Ticket URL: <http://www.avcodec.org/trac/ffmpeg/ticket/831#comment:3>
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