+/** Return non-zero if the given integer is a valid sample format. \since 5.0 */
+int pa_sample_format_valid(unsigned format) PA_GCC_PURE;
+
+/** Return non-zero if the rate is within the supported range. \since 5.0 */
+int pa_sample_rate_valid(uint32_t rate) PA_GCC_PURE;
+
+/** Return non-zero if the channel count is within the supported range.
+ * \since 5.0 */
+int pa_channels_valid(uint8_t channels) PA_GCC_PURE;
+