"h", ///< height of the rendered box
"w", ///< width of the rendered box
"t",
+ "max",
NULL
};
VAR_H,
VAR_W,
VAR_T,
+ VAR_MAX,
VARS_NB
};
for (i = 0; i <= NUM_EXPR_EVALS; i++) {
/* evaluate expressions, fail on last iteration */
+ var_values[VAR_MAX] = inlink->w;
if ((ret = av_expr_parse_and_eval(&res, (expr = s->x_expr),
var_names, var_values,
NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0 && i == NUM_EXPR_EVALS)
goto fail;
s->x = var_values[VAR_X] = res;
+ var_values[VAR_MAX] = inlink->h;
if ((ret = av_expr_parse_and_eval(&res, (expr = s->y_expr),
var_names, var_values,
NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0 && i == NUM_EXPR_EVALS)
goto fail;
s->y = var_values[VAR_Y] = res;
+ var_values[VAR_MAX] = inlink->w - s->x;
if ((ret = av_expr_parse_and_eval(&res, (expr = s->w_expr),
var_names, var_values,
NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0 && i == NUM_EXPR_EVALS)
goto fail;
s->w = var_values[VAR_W] = res;
+ var_values[VAR_MAX] = inlink->h - s->y;
if ((ret = av_expr_parse_and_eval(&res, (expr = s->h_expr),
var_names, var_values,
NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0 && i == NUM_EXPR_EVALS)
goto fail;
s->h = var_values[VAR_H] = res;
+ var_values[VAR_MAX] = INT_MAX;
if ((ret = av_expr_parse_and_eval(&res, (expr = s->t_expr),
var_names, var_values,
NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0 && i == NUM_EXPR_EVALS)