On 01/26/2016 11:43 AM, Mats Peterson wrote:
Michael, the 'test1.bmp' file in the 'bmp' directory in the FATE test
suite contains a palette with green and blue colors, and when opening it
in Paint in Windows XP, it will be displayed with the colors in the
palette, not just black & white. This leads me to believe we should use
pal8 and not monow for raw 1 bpp video in AVI after all.
Please see the attached "test suite", it contains a README file with
further information.
This patch can't be applied until the raw yuv420p output differences
between using monow and pal8 as the source (output values being 0x10 and
0xEB for pal8, and 0x00 and 0xFF for monow) are solved. Or if you just
rewrite the 1 bpp test in some way.
Mats
From https://en.wikipedia.org/wiki/BMP_file_format#Pixel_format:
"The 1-bit per pixel (1bpp) format supports 2 distinct colors, (for
example: black and white). The pixel values are stored in each bit, with
the first (left-most) pixel in the most-significant bit of the first
byte.[5] Each bit is an index into a table of 2 colors. An unset bit
will refer to the first color table entry, and a set bit will refer to
the last (second) color table entry."
I don't know whether this Wikipedia article has a lot of authority
really, but please note the "for example black and white".
Mats
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