Method: Video4Linux2::Camera#frame_capabilities

Defined in:
ext/v4l2/v4l2.c

#frame_capabilities(fmt) ⇒ Object 



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# File 'ext/v4l2/v4l2.c', line 465

static VALUE
rb_camera_get_frame_capabilities(VALUE self, VALUE fmt)
{
  VALUE ret;
  camera_t* ptr;
  int i;
  int j;

  int err;
  struct v4l2_frmsizeenum size;

  VALUE capa;
  VALUE list;
  VALUE rate;

  Check_Type(fmt, T_SYMBOL);

  Data_Get_Struct(self, camera_t, ptr);

  ret = rb_ary_new();

  for (i = 0; ;i++){
    err = camera_get_frame_size(ptr, to_pixfmt(fmt), i, &size);
    if (err) break;

    if (size.type == V4L2_FRMSIZE_TYPE_DISCRETE) {
      capa = rb_obj_alloc(frame_cap_klass);
      rb_ivar_set(capa, id_iv_width, INT2NUM(size.discrete.width));
      rb_ivar_set(capa, id_iv_height, INT2NUM(size.discrete.height));
      rb_ivar_set(capa, id_iv_rate, get_framerate_list(ptr, &size.discrete));

      rb_ary_push(ret, capa);

    } else if (size.type == V4L2_FRMSIZE_TYPE_STEPWISE) {
      make_dummy_capabilities(ptr, ret,
                              size.stepwise.max_width,
                              size.stepwise.max_height);
      break;
    }
  }

  return ret;
}