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enum bas_type {
BAS_FUBK,
BAS_CONVERGENCE,
BAS_BLACK,
BAS_BLUE,
BAS_RED,
BAS_MAGENTA,
BAS_GREEN,
BAS_CYAN,
BAS_YELLOW,
BAS_WHITE,
BAS_EBU,
BAS_VCR,
BAS_IMAGE,
};
typedef struct bas {
double samplerate;
enum bas_type type;
int fbas; /* if color shall be added */
double circle_radius; /* radius of circle in grid units */
int color_bar; /* show only color bar on all lines */
int grid_only; /* show only the grid */
const char *station_id; /* text to display as station id */
int grid_width; /* width of the grid (convergence test) */
double color_phase; /* current phase of color carrier */
int v_polarity; /* polarity of V color vector */
unsigned short *img; /* image data, if it should be used */
int img_width, img_height; /* size of image */
iir_filter_t lp_y, lp_u, lp_v; /* low pass filters */
} bas_t;
void bas_init(bas_t *bas, double samplerate, enum bas_type type, int fbas, double circle_radius, int color_bar, int grid_only, const char *station_id, int grid_width, unsigned short *img, int width, int height);
int bas_generate(bas_t *bas, sample_t *sample);
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