* @param num_steps The maximum number of steps. One step is already a good compromise between time and quality.
* @param closest_cb Return the closest codebook to each point. Must be allocated.
* @param rand_state A random number generator state. Should be already initialized by av_lfg_init().
+ * @return < 0 in case of error, 0 otherwise
*/
-void ff_do_elbg(int *points, int dim, int numpoints, int *codebook,
- int numCB, int num_steps, int *closest_cb,
- AVLFG *rand_state);
+int ff_do_elbg(int *points, int dim, int numpoints, int *codebook,
+ int numCB, int num_steps, int *closest_cb,
+ AVLFG *rand_state);
/**
* Initialize the **codebook vector for the elbg algorithm. If you have already
* If numpoints < 8*numCB this function fills **codebook with random numbers.
* If not, it calls ff_do_elbg for a (smaller) random sample of the points in
* **points. Get the same parameters as ff_do_elbg.
+ * @return < 0 in case of error, 0 otherwise
*/
-void ff_init_elbg(int *points, int dim, int numpoints, int *codebook,
- int numCB, int num_steps, int *closest_cb,
- AVLFG *rand_state);
+int ff_init_elbg(int *points, int dim, int numpoints, int *codebook,
+ int numCB, int num_steps, int *closest_cb,
+ AVLFG *rand_state);
#endif /* AVCODEC_ELBG_H */