static void opt_b_frames(const char *arg) { b_frames = atoi(arg); if (b_frames > FF_MAX_B_FRAMES) { fprintf(stderr, "\nCannot have more than %d B frames, increase FF_MAX_B_FRAMES.\n", FF_MAX_B_FRAMES); exit(1); } else if (b_frames < 1) { fprintf(stderr, "\nNumber of B frames must be higher than 0\n"); exit(1); } }