On 01/26/2016 10:55 AM, Paul B Mahol wrote:
On 1/26/16, Mats Peterson <matsp888-at-yahoo....@ffmpeg.org> wrote:
On 01/26/2016 10:42 AM, Mats Peterson wrote:
I discovered a 1 bpp BMP file with a palette called 'test1.bmp' in the
'bmp' directory of the FATE test suite. When converting this file with,
say, "ffmpeg -i test1.bmp test.avi", the output file will use the colors
of the palette in the BMP file, not black & white. Also, the pixel
format used for the file is pal8, not monow. This leads me to believe we
should use pal8 for raw 1 bpp video in AVI in rawdec.c as well, in spite
of Microsoft's use of the word "monochrome". But then again, the pal8 to
yuv420p conversion discrepancies, using 0x10 and 0xEB instead of 0x00
and 0xFF as the output values, will have to get fixed, in order to pass
the FATE test suite. This is nothing urgent, of course.
Mats
I should add that opening this file in Paint in Windows XP will show the
colors properly, not just black & white.
Who still use pal8 today? Only you.
That wasn't very helpful was it? There are loads of old 1 bpp and 8 bpp
files out there.
Mats
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