+
+ /*!
+ * @brief Toggle the mute status of the AVR (if present)
+ * @return The new audio status.
+ */
+ virtual uint8_t AudioToggleMute(void) = 0;
+
+ /*!
+ * @brief Mute the AVR (if present)
+ * @return The new audio status.
+ */
+ virtual uint8_t AudioMute(void) = 0;
+
+ /*!
+ * @brief Mute the AVR (if connected)
+ * @return The new audio status.
+ */
+ virtual uint8_t AudioUnmute(void) = 0;
+
+ /*!
+ * @brief Get the current audio status (if an AVR is connected)
+ * @return The current audio status, or cec_audio_status if unknown.
+ */
+ virtual uint8_t AudioStatus(void) = 0;