CONTRAST_DEFAULT  205 libavfilter/vf_procamp_vaapi.c       OFFSET(contrast),  AV_OPT_TYPE_FLOAT, { .dbl = CONTRAST_DEFAULT }, CONTRAST_MIN, CONTRAST_MAX, .flags = FLAGS },
CONTRAST_DEFAULT  207 libavfilter/vf_procamp_vaapi.c       OFFSET(contrast),  AV_OPT_TYPE_FLOAT, { .dbl = CONTRAST_DEFAULT }, CONTRAST_MIN, CONTRAST_MAX, .flags = FLAGS },