+
+/** Used to avoid a shortcoming in vim's syntax highlighting. */
+#define EMBRACE(...) { __VA_ARGS__}
+
+/** A nice cup of STFU for Mr gcc. */
+#define do_nothing do {/* nothing */} while (0)
+
+/**
+ * The sample formats supported by paraslash.
+ *
+ * It may be determined by one of the following sources:
+ *
+ * 1. The decoding filter (para_audiod only). In this case, it is always
+ * \p SF_S16_LE which is the canonical format used within decoders.
+ *
+ * 2. The wav header (para_write only).
+ *
+ * 3. The --format option of para_write.
+ */
+#define SAMPLE_FORMATS \
+ SAMPLE_FORMAT(SF_S8, "8 bit signed"), \
+ SAMPLE_FORMAT(SF_U8, "8 bit unsigned"), \
+ SAMPLE_FORMAT(SF_S16_LE, "16 bit signed, little endian"), \
+ SAMPLE_FORMAT(SF_S16_BE, "16 bit signed, big endian"), \
+ SAMPLE_FORMAT(SF_U16_LE, "16 bit unsigned, little endian"), \
+ SAMPLE_FORMAT(SF_U16_BE, "16 bit unsigned, big endian"), \
+
+/** \cond sample_format */
+#define SAMPLE_FORMAT(a, b) a
+enum sample_format {SAMPLE_FORMATS};
+#undef SAMPLE_FORMAT
+#define SAMPLE_FORMAT(a, b) b
+/** \endcond sample_format */
+
+/** Debug loglevel, gets really noisy. */
+#define LL_DEBUG 0
+/** Still noisy, but won't fill your disk. */
+#define LL_INFO 1
+/** Normal, but significant event. */
+#define LL_NOTICE 2
+/** Unexpected event that can be handled. */
+#define LL_WARNING 3
+/** Unhandled error condition. */
+#define LL_ERROR 4
+/** System might be unreliable. */
+#define LL_CRIT 5
+/** Last message before exit. */
+#define LL_EMERG 6
+/** Number of all loglevels. */
+#define NUM_LOGLEVELS 7
+
+/** Log messages with lower priority than that will not be compiled in. */
+#define COMPILE_TIME_LOGLEVEL 0
+
+/** \cond log */
+#if LL_DEBUG >= COMPILE_TIME_LOGLEVEL
+#define PARA_DEBUG_LOG(f,...) para_log(LL_DEBUG, "%s: " f, __FUNCTION__, ## __VA_ARGS__)
+#else
+#define PARA_DEBUG_LOG(...) do {;} while (0)
+#endif
+
+#if LL_INFO >= COMPILE_TIME_LOGLEVEL
+#define PARA_INFO_LOG(f,...) para_log(LL_INFO, "%s: " f, __FUNCTION__, ## __VA_ARGS__)
+#else
+#define PARA_INFO_LOG(...) do {;} while (0)
+#endif
+
+#if LL_NOTICE >= COMPILE_TIME_LOGLEVEL
+#define PARA_NOTICE_LOG(f,...) para_log(LL_NOTICE, "%s: " f, __FUNCTION__, ## __VA_ARGS__)
+#else
+#define PARA_NOTICE_LOG(...) do {;} while (0)
+#endif
+
+#if LL_WARNING >= COMPILE_TIME_LOGLEVEL
+#define PARA_WARNING_LOG(f,...) para_log(LL_WARNING, "%s: " f, __FUNCTION__, ## __VA_ARGS__)
+#else
+#define PARA_WARNING_LOG(...) do {;} while (0)
+#endif
+
+#if LL_ERROR >= COMPILE_TIME_LOGLEVEL
+#define PARA_ERROR_LOG(f,...) para_log(LL_ERROR, "%s: " f, __FUNCTION__, ## __VA_ARGS__)
+#else
+#define PARA_ERROR_LOG(...) do {;} while (0)
+#endif
+
+#if LL_CRIT >= COMPILE_TIME_LOGLEVEL
+#define PARA_CRIT_LOG(f,...) para_log(LL_CRIT, "%s: " f, __FUNCTION__, ## __VA_ARGS__)
+#else
+#define PARA_CRIT_LOG(...) do {;} while (0)
+#endif
+
+#if LL_EMERG >= COMPILE_TIME_LOGLEVEL
+#define PARA_EMERG_LOG(f,...) para_log(LL_EMERG, "%s: " f, __FUNCTION__, ## __VA_ARGS__)
+#else
+#define PARA_EMERG_LOG(...)
+#endif
+/** \endcond log */