avutil/film_grain_params: fix doxy for ar_coeff_* fields

Signed-off-by: James Almer <jamrial@gmail.com>
4 years ago · 53b4550bdd
parent 0639f5c294
commit 53b4550bdd
1 changed files with 5 additions and 4 deletions
--- a/libavutil/film_grain_params.h
+++ b/libavutil/film_grain_params.h
@ -64,18 +64,19 @@ typedef struct AVFilmGrainAOMParams {
    int scaling_shift;

    /**
-     * Specifies the auto-regression lag. The number of coefficients is given by
-     * 2*ar_coeff_lag(ar_coeff_lag - 1), with an extra one for the chroma.
+     * Specifies the auto-regression lag.
     */
    int ar_coeff_lag;

    /**
-     * Luma auto-regression coefficients.
+     * Luma auto-regression coefficients. The number of coefficients is given by
+     * 2 * ar_coeff_lag * (ar_coeff_lag + 1).
     */
    int8_t ar_coeffs_y[24];

    /**
-     * Chroma auto-regression coefficients.
+     * Chroma auto-regression coefficients. The number of coefficients is given by
+     * 2 * ar_coeff_lag * (ar_coeff_lag + 1) + !!num_y_points.
     */
    int8_t ar_coeffs_uv[2 /* cb, cr */][25];