C++ (Cpp) avctp_send_passthrough示例

示例#1

文件： control.c 项目： LittoCats/OT_4010D

static DBusMessage *volume_down(DBusConnection *conn, DBusMessage *msg,
								void *data)
{
	struct audio_device *device = data;
	struct control *control = device->control;
	DBusMessage *reply;
	int err;

	reply = dbus_message_new_method_return(msg);
	if (!reply)
		return NULL;

	if (control->state != AVCTP_STATE_CONNECTED)
		return g_dbus_create_error(msg,
					ERROR_INTERFACE ".NotConnected",
					"Device not Connected");

	if (!control->target)
		return g_dbus_create_error(msg,
					ERROR_INTERFACE ".NotSupported",
					"AVRCP Target role not supported");

	err = avctp_send_passthrough(control, VOL_DOWN_OP);
	if (err < 0)
		return g_dbus_create_error(msg, ERROR_INTERFACE ".Failed",
							strerror(-err));

	return dbus_message_new_method_return(msg);
}

示例#2

文件： control.c 项目： DaisyPi/sensortag

static DBusMessage *key_pressed(DBusConnection *conn, DBusMessage *msg,
						uint8_t op, void *data)
{
	struct control *control = data;
	int err;

	if (!control->session)
		return btd_error_not_connected(msg);

	if (!control->target)
		return btd_error_not_supported(msg);

	err = avctp_send_passthrough(control->session, op);
	if (err < 0)
		return btd_error_failed(msg, strerror(-err));

	return dbus_message_new_method_return(msg);
}

示例#3

文件： control.c 项目： 520lly/bluez

static DBusMessage *volume_down(DBusConnection *conn, DBusMessage *msg,
								void *data)
{
	struct audio_device *device = data;
	struct control *control = device->control;
	int err;

	if (!control->session)
		return btd_error_not_connected(msg);

	if (!control->target)
		return btd_error_not_supported(msg);

	err = avctp_send_passthrough(control->session, VOL_DOWN_OP);
	if (err < 0)
		return btd_error_failed(msg, strerror(-err));

	return dbus_message_new_method_return(msg);
}