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megapixels
mirror of https://git.sr.ht/~martijnbraam/megapixels
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process_pipeline: Store a default whitelevel in the DNG file 

This helps unpacked 10-bit formats, as otherwise applications
assume the image to be 16-bit because of TIFFTAG_BITSPERSAMPLE.
This commit is contained in:
Sebastian Krzyszkowiak 2021-06-19 19:42:32 +02:00
parent 05d6c3fa6d
commit c03fade3cd
No known key found for this signature in database
GPG Key ID: E8F235CF3BDBC3FF
3 changed files with 27 additions and 2 deletions
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22
src/camera.c
View File

@ -122,6 +122,28 @@ mp_pixel_format_bits_per_pixel(MPPixelFormat pixel_format)
}
}
uint32_t
mp_pixel_format_pixel_depth(MPPixelFormat pixel_format)
{
g_return_val_if_fail(pixel_format < MP_PIXEL_FMT_MAX, 0);
switch (pixel_format) {
case MP_PIXEL_FMT_BGGR8:
case MP_PIXEL_FMT_GBRG8:
case MP_PIXEL_FMT_GRBG8:
case MP_PIXEL_FMT_RGGB8:
case MP_PIXEL_FMT_UYVY:
case MP_PIXEL_FMT_YUYV:
return 8;
case MP_PIXEL_FMT_GBRG10P:
case MP_PIXEL_FMT_GRBG10P:
case MP_PIXEL_FMT_RGGB10P:
case MP_PIXEL_FMT_BGGR10P:
return 10;
default:
return 0;
}
}
uint32_t
mp_pixel_format_width_to_bytes(MPPixelFormat pixel_format, uint32_t width)
{

1
src/camera.h
View File

@ -30,6 +30,7 @@ uint32_t mp_pixel_format_to_v4l_pixel_format(MPPixelFormat pixel_format);
uint32_t mp_pixel_format_to_v4l_bus_code(MPPixelFormat pixel_format);
uint32_t mp_pixel_format_bits_per_pixel(MPPixelFormat pixel_format);
uint32_t mp_pixel_format_pixel_depth(MPPixelFormat pixel_format);
uint32_t mp_pixel_format_width_to_bytes(MPPixelFormat pixel_format, uint32_t width);
uint32_t mp_pixel_format_width_to_colors(MPPixelFormat pixel_format, uint32_t width);
uint32_t mp_pixel_format_height_to_colors(MPPixelFormat pixel_format,

6
src/process_pipeline.c
View File

@ -427,9 +427,11 @@ process_image_for_capture(const uint8_t *image, int count)
TIFFSetField(tif, TIFFTAG_CFAPATTERN, 4, "\002\001\001\000"); // BGGR
#endif
printf("TIFF version %d\n", TIFFLIB_VERSION);
if (camera->whitelevel) {
TIFFSetField(tif, TIFFTAG_WHITELEVEL, 1, &camera->whitelevel);
int whitelevel = camera->whitelevel;
if (!whitelevel) {
whitelevel = (1 << mp_pixel_format_pixel_depth(mode.pixel_format)) - 1;
}
TIFFSetField(tif, TIFFTAG_WHITELEVEL, 1, &whitelevel);
if (camera->blacklevel) {
const float blacklevel = camera->blacklevel;
TIFFSetField(tif, TIFFTAG_BLACKLEVEL, 1, &blacklevel);