#190: QT - add support for QT TIFF 2bpp color mode
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Reporter: ami_stuff | Owner:
Type: defect | Status: new
Priority: normal | Component: undetermined
Version: unspecified | Resolution:
Keywords: | Blocked By:
Blocking: | Reproduced: 0
Analyzed: 0 |
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Comment (by ami_stuff):
I have tried to support TIFF 2/4bpp without compression, but I don't know
what to do with files with inverted FillOrder (I have no 2/4bpp samples)
and it seems I would need to multiply with a different value to compute
grayscale for 2bpp/4bpp as well.
{{{
/* make default grayscale pal */
pal = (uint32_t *) s->picture.data[1];
for (i = 0; i < 256; i++)
pal[i] = i * 0x010101;
}}}
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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/190#comment:3>
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