diff --git a/.gitignore b/.gitignore
index c24fc096..82916075 100644
--- a/.gitignore
+++ b/.gitignore
@@ -59,3 +59,4 @@ test/queue_timer
 test/rawmidi
 test/seq
 test/timer
+test/lsb/midi_event
diff --git a/configure.in b/configure.in
index 4e5e7578..cb2877b4 100644
--- a/configure.in
+++ b/configure.in
@@ -594,8 +594,9 @@ AC_OUTPUT(Makefile doc/Makefile doc/pictures/Makefile doc/doxygen.cfg \
 	  src/conf/cards/Makefile \
 	  src/conf/pcm/Makefile \
 	  modules/Makefile modules/mixer/Makefile modules/mixer/simple/Makefile \
-	  alsalisp/Makefile aserver/Makefile test/Makefile utils/Makefile \
-          utils/alsa-lib.spec utils/alsa.pc)
+	  alsalisp/Makefile aserver/Makefile \
+	  test/Makefile test/lsb/Makefile \
+	  utils/Makefile utils/alsa-lib.spec utils/alsa.pc)
 
 dnl Create asoundlib.h dynamically according to configure options
 echo "Creating asoundlib.h..."
diff --git a/src/seq/seq_midi_event.c b/src/seq/seq_midi_event.c
index 53d05725..ddaac5ab 100644
--- a/src/seq/seq_midi_event.c
+++ b/src/seq/seq_midi_event.c
@@ -129,12 +129,23 @@ static const struct extra_event_list_t {
 #endif /* DOC_HIDDEN */
 
 /**
- * \brief Initialize MIDI event parser
- * \param bufsize buffer size for MIDI message
- * \param rdev allocated MIDI event parser
- * \return 0 on success otherwise a negative error code
+ * \brief Creates a MIDI event parser.
+ * \param[in] bufsize Size of the buffer used for encoding; this should be
+ *                    large enough to hold the largest MIDI message to be
+ *                    encoded.
+ * \param[out] rdev The new MIDI event parser.
+ * \return Zero on success, otherwise a negative error code.
  *
- * Allocates and initializes MIDI event parser.
+ * This function creates and initializes a MIDI parser object that can be used
+ * to convert a MIDI byte stream to sequencer events (encoding) and/or to
+ * convert sequencer events to a MIDI byte stream (decoding).
+ *
+ * \par Errors:
+ * <dl>
+ * <dt>-ENOMEM<dd>Out of memory.
+ *
+ * \par Conforming to:
+ * LSB 3.2
  */
 int snd_midi_event_new(size_t bufsize, snd_midi_event_t **rdev)
 {
@@ -159,11 +170,13 @@ int snd_midi_event_new(size_t bufsize, snd_midi_event_t **rdev)
 }
 
 /**
- * \brief Free MIDI event parser
- * \param dev MIDI event parser
- * \return 0 on success otherwise a negative error code
+ * \brief Frees a MIDI event parser.
+ * \param dev MIDI event parser.
  *
- * Frees MIDI event parser.
+ * Frees a MIDI event parser.
+ *
+ * \par Conforming to:
+ * LSB 3.2
  */
 void snd_midi_event_free(snd_midi_event_t *dev)
 {
@@ -174,11 +187,15 @@ void snd_midi_event_free(snd_midi_event_t *dev)
 }
 
 /**
- * \brief Enable/disable MIDI command merging
- * \param dev MIDI event parser
- * \param on 0 - enable MIDI command merging, 1 - always pass the command
+ * \brief Enables/disables MIDI command merging.
+ * \param dev MIDI event parser.
+ * \param on 0 to enable MIDI command merging,
+ *           1 to always write the command byte.
  *
- * Enable/disable MIDI command merging
+ * This function enables or disables MIDI command merging (running status).
+ *
+ * When MIDI command merging is not disabled, #snd_midi_event_decode is allowed
+ * to omit any status byte that is identical to the previous status byte.
  */
 void snd_midi_event_no_status(snd_midi_event_t *dev, int on)
 {
@@ -196,11 +213,15 @@ inline static void reset_encode(snd_midi_event_t *dev)
 }
 
 /**
- * \brief Reset MIDI encode parser
- * \param dev MIDI event parser
- * \return 0 on success otherwise a negative error code
+ * \brief Resets MIDI encode parser.
+ * \param dev MIDI event parser.
  *
- * Resets MIDI encode parser
+ * This function resets the MIDI encoder of the parser \a dev.
+ * Any partially encoded MIDI message is dropped,
+ * and running status state is cleared.
+ *
+ * \par Conforming to:
+ * LSB 3.2
  */
 void snd_midi_event_reset_encode(snd_midi_event_t *dev)
 {
@@ -208,11 +229,15 @@ void snd_midi_event_reset_encode(snd_midi_event_t *dev)
 }
 
 /**
- * \brief Reset MIDI decode parser
- * \param dev MIDI event parser
- * \return 0 on success otherwise a negative error code
+ * \brief Resets MIDI decode parser.
+ * \param dev MIDI event parser.
  *
- * Resets MIDI decode parser
+ * This function resets the MIDI decoder of the parser \a dev.
+ * The next decoded message does not use running status from before the call to
+ * \a snd_midi_event_reset_decode.
+ *
+ * \par Conforming to:
+ * LSB 3.2
  */
 void snd_midi_event_reset_decode(snd_midi_event_t *dev)
 {
@@ -220,11 +245,14 @@ void snd_midi_event_reset_decode(snd_midi_event_t *dev)
 }
 
 /**
- * \brief Initializes MIDI parsers
- * \param dev MIDI event parser
- * \return 0 on success otherwise a negative error code
+ * \brief Resets MIDI encode/decode parsers.
+ * \param dev MIDI event parser.
  *
- * Initializes MIDI parsers (both encode and decode)
+ * This function resets both encoder and decoder of the MIDI event parser.
+ * \sa snd_midi_event_reset_encode, snd_midi_event_reset_decode
+ *
+ * \par Conforming to:
+ * LSB 3.2
  */
 void snd_midi_event_init(snd_midi_event_t *dev)
 {
@@ -233,12 +261,21 @@ void snd_midi_event_init(snd_midi_event_t *dev)
 }
 
 /**
- * \brief Resize MIDI message (event) buffer
- * \param dev MIDI event parser
- * \param bufsize new requested buffer size
- * \return 0 on success otherwise a negative error code
+ * \brief Resizes the MIDI message encoding buffer.
+ * \param dev MIDI event parser.
+ * \param bufsize The new buffer size.
+ * \return Zero on success, otherwise a negative error code.
  *
- * Resizes MIDI message (event) buffer.
+ * This function resizes the buffer that is used to hold partially encoded MIDI
+ * messages.
+ *
+ * If there is a partially encoded message in the buffer, it is dropped.
+ *
+ * \par Errors:
+ * <dl>
+ * <dt>-ENOMEM<dd>Out of memory.
+ *
+ * \sa snd_midi_event_encode, snd_midi_event_reset_encode
  */
 int snd_midi_event_resize_buffer(snd_midi_event_t *dev, size_t bufsize)
 {
@@ -258,16 +295,67 @@ int snd_midi_event_resize_buffer(snd_midi_event_t *dev, size_t bufsize)
 }
 
 /**
- * \brief Read bytes and encode to sequencer event if finished
- * \param dev MIDI event parser
- * \param buf MIDI byte stream
- * \param count count of bytes of MIDI byte stream to encode
- * \param ev Result - sequencer event
- * \return count of encoded bytes otherwise a negative error code
+ * \brief Encodes bytes to sequencer event.
+ * \param[in] dev MIDI event parser.
+ * \param[in] buf Buffer containing bytes of a raw MIDI stream.
+ * \param[in] count Number of bytes in \a buf.
+ * \param[out] ev Sequencer event.
+ * \return The number of bytes consumed, or a negative error code.
  *
- * Read bytes and encode to sequencer event if finished.
- * If complete sequencer event is available, ev->type is not
- * equal to #SND_SEQ_EVENT_NONE.
+ * This function tries to use up to \a count bytes from the beginning of the
+ * buffer to encode a sequencer event.  If a complete MIDI message has been
+ * encoded, the sequencer event is written to \a ev; otherwise, \a ev->type is
+ * set to #SND_SEQ_EVENT_NONE, and further bytes are required to complete
+ * a message.
+ *
+ * The buffer in \a dev is used to hold any bytes of a not-yet-complete MIDI
+ * message.  If a System Exclusive message is larger than the buffer, the
+ * message is split into multiple parts, and a sequencer event is returned at
+ * the end of each part.
+ *
+ * Any bytes that are not part of a valid MIDI message are silently ignored,
+ * i.e., they are consumed without signaling an error.
+ *
+ * When this function returns a system exclusive sequencer event (\a ev->type
+ * is #SND_SEQ_EVENT_SYSEX), the data pointer (\a ev->data.ext.ptr) points into
+ * the MIDI event parser's buffer.  Therefore, the sequencer event can only be
+ * used as long as that buffer remains valid, i.e., until the next call to
+ * #snd_midi_event_encode, #snd_midi_event_encode_byte,
+ * #snd_midi_event_resize_buffer, #snd_midi_event_init,
+ * #snd_midi_event_reset_encode, or #snd_midi_event_free for that MIDI event
+ * parser.
+ *
+ * This function can generate any sequencer event that corresponds to a MIDI
+ * message, i.e.:
+ * - #SND_SEQ_EVENT_NOTEOFF
+ * - #SND_SEQ_EVENT_NOTEON
+ * - #SND_SEQ_EVENT_KEYPRESS
+ * - #SND_SEQ_EVENT_CONTROLLER
+ * - #SND_SEQ_EVENT_PGMCHANGE
+ * - #SND_SEQ_EVENT_CHANPRESS
+ * - #SND_SEQ_EVENT_PITCHBEND
+ * - #SND_SEQ_EVENT_SYSEX
+ * - #SND_SEQ_EVENT_QFRAME
+ * - #SND_SEQ_EVENT_SONGPOS
+ * - #SND_SEQ_EVENT_SONGSEL
+ * - #SND_SEQ_EVENT_TUNE_REQUEST
+ * - #SND_SEQ_EVENT_CLOCK
+ * - #SND_SEQ_EVENT_START
+ * - #SND_SEQ_EVENT_CONTINUE
+ * - #SND_SEQ_EVENT_STOP
+ * - #SND_SEQ_EVENT_SENSING
+ * - #SND_SEQ_EVENT_RESET
+ * .
+ * Some implementations may also be able to generate the following events
+ * for a sequence of controller change messages:
+ * - #SND_SEQ_EVENT_CONTROL14
+ * - #SND_SEQ_EVENT_NONREGPARAM
+ * - #SND_SEQ_EVENT_REGPARAM
+ *
+ * \par Conforming to:
+ * LSB 3.2
+ *
+ * \sa snd_midi_event_new, snd_midi_event_reset_encode, snd_midi_event_encode_byte
  */
 long snd_midi_event_encode(snd_midi_event_t *dev, const unsigned char *buf, long count, snd_seq_event_t *ev)
 {
@@ -289,13 +377,23 @@ long snd_midi_event_encode(snd_midi_event_t *dev, const unsigned char *buf, long
 }
 
 /**
- * \brief Read one byte and encode to sequencer event if finished
- * \param dev MIDI event parser
- * \param c a byte of MIDI stream
- * \param ev Result - sequencer event
- * \return 1 - sequencer event is completed, 0 - next byte is required for completion, otherwise a negative error code
+ * \brief Encodes byte to sequencer event.
+ * \param[in] dev MIDI event parser.
+ * \param[in] c A byte of a raw MIDI stream.
+ * \param[out] ev Sequencer event.
+ * \return 1 if a sequenver event has been completed, 0 if more bytes are
+ *         required to complete an event, or a negative error code.
  *
- * Read byte and encode to sequencer event if finished.
+ * This function tries to use the byte \a c to encode a sequencer event.  If
+ * a complete MIDI message has been encoded, the sequencer event is written to
+ * \a ev; otherwise, further bytes are required to complete a message.
+ *
+ * See also the description of #snd_midi_event_encode.
+ *
+ * \par Conforming to:
+ * LSB 3.2
+ *
+ * \sa snd_midi_event_new, snd_midi_event_reset_encode, snd_midi_event_encode
  */
 int snd_midi_event_encode_byte(snd_midi_event_t *dev, int c, snd_seq_event_t *ev)
 {
@@ -405,14 +503,56 @@ static void songpos_event(snd_midi_event_t *dev, snd_seq_event_t *ev)
 }
 
 /**
- * \brief Decode sequencer event to MIDI byte stream
- * \param dev MIDI event parser
- * \param buf Result - MIDI byte stream
- * \param count Available bytes in MIDI byte stream
- * \param ev Event to decode
- * \return count of decoded bytes otherwise a negative error code
+ * \brief Decodes sequencer event to MIDI byte stream.
+ * \param[in] dev MIDI event parser.
+ * \param[out] buf Buffer for the resulting MIDI byte stream.
+ * \param[in] count Number of bytes in \a buf.
+ * \param[in] ev The sequencer event to decode.
+ * \return The number of bytes written to \a buf, or a negative error code.
  *
- * Decode sequencer event to MIDI byte stream.
+ * This function tries to decode the sequencer event into one or more MIDI
+ * messages, and writes the raw MIDI byte(s) into \a buf.
+ *
+ * The generated MIDI messages may use running status, unless disabled with
+ * #snd_midi_event_no_status.
+ *
+ * The required buffer size for a sequencer event it as most 12 bytes, except
+ * for System Exclusive events (\a ev->type == #SND_SEQ_EVENT_SYSEX) which can
+ * have any length (as specified by \a ev->data.ext.len).
+ *
+ * The following sequencer events correspond to MIDI messages:
+ * - #SND_SEQ_EVENT_NOTEOFF
+ * - #SND_SEQ_EVENT_NOTEON
+ * - #SND_SEQ_EVENT_KEYPRESS
+ * - #SND_SEQ_EVENT_CONTROLLER
+ * - #SND_SEQ_EVENT_PGMCHANGE
+ * - #SND_SEQ_EVENT_CHANPRESS
+ * - #SND_SEQ_EVENT_PITCHBEND
+ * - #SND_SEQ_EVENT_SYSEX
+ * - #SND_SEQ_EVENT_QFRAME
+ * - #SND_SEQ_EVENT_SONGPOS
+ * - #SND_SEQ_EVENT_SONGSEL
+ * - #SND_SEQ_EVENT_TUNE_REQUEST
+ * - #SND_SEQ_EVENT_CLOCK
+ * - #SND_SEQ_EVENT_START
+ * - #SND_SEQ_EVENT_CONTINUE
+ * - #SND_SEQ_EVENT_STOP
+ * - #SND_SEQ_EVENT_SENSING
+ * - #SND_SEQ_EVENT_RESET
+ * - #SND_SEQ_EVENT_CONTROL14
+ * - #SND_SEQ_EVENT_NONREGPARAM
+ * - #SND_SEQ_EVENT_REGPARAM
+ *
+ * \par Errors:
+ * <dl>
+ * <dt>-EINVAL<dd>\a ev is not a valid sequencer event.
+ * <dt>-ENOENT<dd>The sequencer event does not correspond to one or more MIDI messages.
+ * <dt>-ENOMEM<dd>The MIDI message(s) would not fit into \a count bytes.
+ *
+ * \par Conforming to:
+ * LSB 3.2
+ *
+ * \sa snd_midi_event_reset_decode, snd_midi_event_no_status
  */
 long snd_midi_event_decode(snd_midi_event_t *dev, unsigned char *buf, long count, const snd_seq_event_t *ev)
 {
diff --git a/test/Makefile.am b/test/Makefile.am
index 2d7e92b0..ae524a4d 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -1,3 +1,5 @@
+SUBDIRS=. lsb
+
 check_PROGRAMS=control pcm pcm_min latency seq \
 	       playmidi1 timer rawmidi midiloop \
 	       oldapi queue_timer namehint client_event_filter
diff --git a/test/lsb/Makefile.am b/test/lsb/Makefile.am
new file mode 100644
index 00000000..8d2c1bde
--- /dev/null
+++ b/test/lsb/Makefile.am
@@ -0,0 +1,6 @@
+TESTS = midi_event
+check_PROGRAMS = $(TESTS)
+noinst_HEADERS = test.h
+
+AM_CFLAGS = -Wall -pipe
+LDADD = ../../src/libasound.la
diff --git a/test/lsb/midi_event.c b/test/lsb/midi_event.c
new file mode 100644
index 00000000..3a4d7fa1
--- /dev/null
+++ b/test/lsb/midi_event.c
@@ -0,0 +1,362 @@
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <regex.h>
+#include "test.h"
+
+/*
+ * Checks whether the regular expression matches the entire MIDI data, printed
+ * as hex.
+ */
+static int midi_matches_regex(unsigned char *midi, int count, const char *regex)
+{
+	char *text;
+	regex_t re;
+	regmatch_t match;
+	int i;
+
+	text = malloc(2 * count + 1);
+	if (!text)
+		return 0;
+	for (i = 0; i < count; ++i)
+		sprintf(text + 2 * i, "%02x", midi[i]);
+	if (regcomp(&re, regex, REG_EXTENDED) != 0) {
+		free(text);
+		return 0;
+	}
+	i = regexec(&re, text, 1, &match, 0);
+	i = i == 0 && match.rm_so == 0 && match.rm_eo == strlen(text);
+	regfree(&re);
+	free(text);
+	return i;
+}
+
+static void test_decode(void)
+{
+	snd_midi_event_t *midi_event;
+	snd_seq_event_t ev;
+	unsigned char buf[50];
+	int count;
+
+	ALSA_CHECK(snd_midi_event_new(256 /* ? */, &midi_event));
+
+#define DECODE() snd_midi_event_decode(midi_event, buf, sizeof(buf), &ev)
+#define BUF_MATCHES(str) midi_matches_regex(buf, count, str)
+#define DECODES_TO(str) ((count = DECODE()), BUF_MATCHES(str))
+
+	snd_seq_ev_clear(&ev);
+
+	snd_seq_ev_set_fixed(&ev);
+	ev.type = SND_SEQ_EVENT_NONE;
+	TEST_CHECK(DECODE() == -ENOENT);
+
+	snd_seq_ev_set_noteoff(&ev, 1, 2, 3);
+	TEST_CHECK(DECODES_TO("810203"));
+
+	snd_seq_ev_set_noteon(&ev, 4, 5, 6);
+	TEST_CHECK(DECODES_TO("940506"));
+
+	snd_seq_ev_set_keypress(&ev, 7, 8, 9);
+	TEST_CHECK(DECODES_TO("a70809"));
+
+	snd_seq_ev_set_controller(&ev, 10, 11, 12);
+	TEST_CHECK(DECODES_TO("ba0b0c"));
+
+	snd_seq_ev_set_pgmchange(&ev, 13, 14);
+	TEST_CHECK(DECODES_TO("cd0e"));
+
+	snd_seq_ev_set_chanpress(&ev, 15, 16);
+	TEST_CHECK(DECODES_TO("df10"));
+
+	snd_seq_ev_set_pitchbend(&ev, 1, 0x222);
+	TEST_CHECK(DECODES_TO("e12244"));
+
+	snd_seq_ev_set_sysex(&ev, 6, "\xf0\x7e\x7f\x06\x01\xf7");
+	TEST_CHECK(DECODES_TO("f07e7f0601f7"));
+
+	snd_seq_ev_set_fixed(&ev);
+	ev.type = SND_SEQ_EVENT_QFRAME;
+	ev.data.control.value = 3;
+	TEST_CHECK(DECODES_TO("f103"));
+
+	ev.type = SND_SEQ_EVENT_SONGPOS;
+	ev.data.control.value = 0x444;
+	TEST_CHECK(DECODES_TO("f24408"));
+
+	ev.type = SND_SEQ_EVENT_SONGSEL;
+	ev.data.control.value = 5;
+	TEST_CHECK(DECODES_TO("f305"));
+
+	ev.type = SND_SEQ_EVENT_TUNE_REQUEST;
+	TEST_CHECK(DECODES_TO("f6"));
+
+	ev.type = SND_SEQ_EVENT_CLOCK;
+	TEST_CHECK(DECODES_TO("f8"));
+
+	ev.type = SND_SEQ_EVENT_START;
+	TEST_CHECK(DECODES_TO("fa"));
+
+	ev.type = SND_SEQ_EVENT_CONTINUE;
+	TEST_CHECK(DECODES_TO("fb"));
+
+	ev.type = SND_SEQ_EVENT_STOP;
+	TEST_CHECK(DECODES_TO("fc"));
+
+	ev.type = SND_SEQ_EVENT_SENSING;
+	TEST_CHECK(DECODES_TO("fe"));
+
+	ev.type = SND_SEQ_EVENT_RESET;
+	TEST_CHECK(DECODES_TO("ff"));
+
+	ev.type = SND_SEQ_EVENT_CONTROL14;
+	ev.data.control.channel = 6;
+	ev.data.control.param = 7;
+	ev.data.control.value = 0x888;
+	/*
+	 * This regular expression catches all allowed combinations of LSB/MSB
+	 * order and running status.
+	 */
+	TEST_CHECK(DECODES_TO("b6(0711(b6)?2708|2708(b6)?0711)"));
+
+	ev.type = SND_SEQ_EVENT_NONREGPARAM;
+	ev.data.control.channel = 9;
+	ev.data.control.param = 0xaaa;
+	ev.data.control.value = 0xbbb;
+	TEST_CHECK(DECODES_TO("b9(622a(b9)?6315|6315(b9)?622a)(b9)?(0617(b9)?263b|263b(b9)?0617)"));
+
+	ev.type = SND_SEQ_EVENT_REGPARAM;
+	ev.data.control.channel = 12;
+	ev.data.control.param = 0xddd;
+	ev.data.control.value = 0xeee;
+	TEST_CHECK(DECODES_TO("bc(645d(bc)?651b|651b(bc)?645d)(bc)?(061d(bc)?266e|266e(bc)?061d)"));
+
+	/* no running status after SysEx */
+	snd_seq_ev_set_pgmchange(&ev, 0, 0x11);
+	TEST_CHECK(DECODES_TO("c011"));
+	snd_seq_ev_set_sysex(&ev, 6, "\xf0\x7e\x7f\x09\x02\xf7");
+	TEST_CHECK(DECODES_TO("f07e7f0902f7"));
+	snd_seq_ev_set_pgmchange(&ev, 0, 0x11);
+	TEST_CHECK(DECODES_TO("c011"));
+
+	/* no running status for non-realtime common messages */
+	ev.type = SND_SEQ_EVENT_QFRAME;
+	ev.data.control.value = 0x11;
+	TEST_CHECK(DECODES_TO("f111"));
+	TEST_CHECK(DECODES_TO("f111"));
+
+	snd_midi_event_free(midi_event);
+}
+
+static void test_reset_decode(void)
+{
+	snd_midi_event_t *midi_event;
+	snd_seq_event_t ev;
+	unsigned char buf[50];
+	int count;
+
+	ALSA_CHECK(snd_midi_event_new(256 /* ? */, &midi_event));
+
+	snd_seq_ev_clear(&ev);
+
+	snd_seq_ev_set_noteon(&ev, 1, 2, 3);
+	TEST_CHECK(DECODES_TO("910203"));
+
+	snd_midi_event_reset_decode(midi_event);
+
+	TEST_CHECK(DECODES_TO("910203"));
+
+	snd_midi_event_free(midi_event);
+}
+
+static void test_encode(void)
+{
+	snd_midi_event_t *midi_event;
+	snd_seq_event_t ev;
+
+	ALSA_CHECK(snd_midi_event_new(256, &midi_event));
+
+#define ENCODE(str) snd_midi_event_encode(midi_event, \
+					  (const unsigned char *)str, \
+					  sizeof(str) - 1, &ev)
+	TEST_CHECK(ENCODE("\x81\x02\x03") == 3);
+	TEST_CHECK(ev.type == SND_SEQ_EVENT_NOTEOFF);
+	TEST_CHECK((ev.flags & SND_SEQ_EVENT_LENGTH_MASK) == SND_SEQ_EVENT_LENGTH_FIXED);
+	TEST_CHECK(ev.data.note.channel == 1);
+	TEST_CHECK(ev.data.note.note == 2);
+	TEST_CHECK(ev.data.note.velocity == 3);
+
+	TEST_CHECK(ENCODE("\x94\x05\x06") == 3);
+	TEST_CHECK(ev.type == SND_SEQ_EVENT_NOTEON);
+	TEST_CHECK(ev.data.note.channel == 4);
+	TEST_CHECK(ev.data.note.note == 5);
+	TEST_CHECK(ev.data.note.velocity == 6);
+
+	TEST_CHECK(ENCODE("\xa7\x08\x09") == 3);
+	TEST_CHECK(ev.type == SND_SEQ_EVENT_KEYPRESS);
+	TEST_CHECK(ev.data.note.channel == 7);
+	TEST_CHECK(ev.data.note.note == 8);
+	TEST_CHECK(ev.data.note.velocity == 9);
+
+	TEST_CHECK(ENCODE("\xba\x0b\x0c") == 3);
+	TEST_CHECK(ev.type == SND_SEQ_EVENT_CONTROLLER);
+	TEST_CHECK(ev.data.control.channel == 10);
+	TEST_CHECK(ev.data.control.param == 11);
+	TEST_CHECK(ev.data.control.value == 12);
+
+	TEST_CHECK(ENCODE("\xcd\x0e") == 2);
+	TEST_CHECK(ev.type == SND_SEQ_EVENT_PGMCHANGE);
+	TEST_CHECK(ev.data.control.channel == 13);
+	TEST_CHECK(ev.data.control.value == 14);
+
+	TEST_CHECK(ENCODE("\xdf\x10") == 2);
+	TEST_CHECK(ev.type == SND_SEQ_EVENT_CHANPRESS);
+	TEST_CHECK(ev.data.control.channel == 15);
+	TEST_CHECK(ev.data.control.value == 16);
+
+	TEST_CHECK(ENCODE("\xe1\x22\x33") == 3);
+	TEST_CHECK(ev.type == SND_SEQ_EVENT_PITCHBEND);
+	TEST_CHECK(ev.data.control.channel == 1);
+	TEST_CHECK(ev.data.control.value == -1630);
+
+	TEST_CHECK(ENCODE("\xf0\x7f\x7f\x04\x01\x7f\x7f\xf7") == 8);
+	TEST_CHECK(ev.type == SND_SEQ_EVENT_SYSEX);
+	TEST_CHECK((ev.flags & SND_SEQ_EVENT_LENGTH_MASK) == SND_SEQ_EVENT_LENGTH_VARIABLE);
+	TEST_CHECK(ev.data.ext.len == 8);
+	TEST_CHECK(!memcmp(ev.data.ext.ptr, "\xf0\x7f\x7f\x04\x01\x7f\x7f\xf7", 8));
+
+	TEST_CHECK(ENCODE("\xf1\x04") == 2);
+	TEST_CHECK(ev.type == SND_SEQ_EVENT_QFRAME);
+	TEST_CHECK(ev.data.control.value == 4);
+
+	TEST_CHECK(ENCODE("\xf2\x55\x66") == 3);
+	TEST_CHECK(ev.type == SND_SEQ_EVENT_SONGPOS);
+	TEST_CHECK(ev.data.control.value == 13141);
+
+	TEST_CHECK(ENCODE("\xf3\x07") == 2);
+	TEST_CHECK(ev.type == SND_SEQ_EVENT_SONGSEL);
+	TEST_CHECK(ev.data.control.value == 7);
+
+	TEST_CHECK(ENCODE("\xf6") == 1);
+	TEST_CHECK(ev.type == SND_SEQ_EVENT_TUNE_REQUEST);
+
+	TEST_CHECK(ENCODE("\xf8") == 1);
+	TEST_CHECK(ev.type == SND_SEQ_EVENT_CLOCK);
+
+	TEST_CHECK(ENCODE("\xfa") == 1);
+	TEST_CHECK(ev.type == SND_SEQ_EVENT_START);
+
+	TEST_CHECK(ENCODE("\xfb") == 1);
+	TEST_CHECK(ev.type == SND_SEQ_EVENT_CONTINUE);
+
+	TEST_CHECK(ENCODE("\xfc") == 1);
+	TEST_CHECK(ev.type == SND_SEQ_EVENT_STOP);
+
+	TEST_CHECK(ENCODE("\xfe") == 1);
+	TEST_CHECK(ev.type == SND_SEQ_EVENT_SENSING);
+
+	TEST_CHECK(ENCODE("\xff") == 1);
+	TEST_CHECK(ev.type == SND_SEQ_EVENT_RESET);
+
+	TEST_CHECK(ENCODE("\xc1\xf8") == 2);
+	TEST_CHECK(ev.type == SND_SEQ_EVENT_CLOCK);
+	TEST_CHECK(ENCODE("\x22") == 1);
+	TEST_CHECK(ev.type == SND_SEQ_EVENT_PGMCHANGE);
+	TEST_CHECK(ev.data.control.channel == 1);
+	TEST_CHECK(ev.data.control.value == 0x22);
+	TEST_CHECK(ENCODE("\xf8") == 1);
+	TEST_CHECK(ev.type == SND_SEQ_EVENT_CLOCK);
+	TEST_CHECK(ENCODE("\x33") == 1);
+	TEST_CHECK(ev.type == SND_SEQ_EVENT_PGMCHANGE);
+	TEST_CHECK(ev.data.control.channel == 1);
+	TEST_CHECK(ev.data.control.value == 0x33);
+
+	TEST_CHECK(ENCODE("\xc1\xf6") == 2);
+	TEST_CHECK(ev.type == SND_SEQ_EVENT_TUNE_REQUEST);
+	TEST_CHECK(ENCODE("\x44\x44") == 2);
+	TEST_CHECK(ev.type == SND_SEQ_EVENT_NONE);
+
+	snd_midi_event_free(midi_event);
+}
+
+static void test_reset_encode(void)
+{
+	snd_midi_event_t *midi_event;
+	snd_seq_event_t ev;
+
+	ALSA_CHECK(snd_midi_event_new(256, &midi_event));
+
+	TEST_CHECK(ENCODE("\x91\x02") == 2);
+	TEST_CHECK(ev.type == SND_SEQ_EVENT_NONE);
+
+	snd_midi_event_reset_encode(midi_event);
+
+	TEST_CHECK(ENCODE("\x03") == 1);
+	TEST_CHECK(ev.type == SND_SEQ_EVENT_NONE);
+
+	snd_midi_event_free(midi_event);
+}
+
+static void test_init(void)
+{
+	snd_midi_event_t *midi_event;
+	snd_seq_event_t ev;
+	unsigned char buf[50];
+	int count;
+
+	ALSA_CHECK(snd_midi_event_new(256, &midi_event));
+
+	snd_seq_ev_set_noteon(&ev, 1, 2, 3);
+	TEST_CHECK(DECODES_TO("910203"));
+
+	TEST_CHECK(ENCODE("\x94\x05") == 2);
+	TEST_CHECK(ev.type == SND_SEQ_EVENT_NONE);
+
+	snd_midi_event_init(midi_event);
+
+	snd_seq_ev_set_noteon(&ev, 1, 2, 3);
+	TEST_CHECK(DECODES_TO("910203"));
+
+	TEST_CHECK(ENCODE("\x06") == 1);
+	TEST_CHECK(ev.type == SND_SEQ_EVENT_NONE);
+
+	snd_midi_event_free(midi_event);
+}
+
+static void test_encode_byte(void)
+{
+	snd_midi_event_t *midi_event;
+	snd_seq_event_t ev;
+
+	ALSA_CHECK(snd_midi_event_new(256, &midi_event));
+
+#define ENCODE_BYTE(c) snd_midi_event_encode_byte(midi_event, c, &ev)
+	TEST_CHECK(ENCODE_BYTE(0x81) == 0);
+	TEST_CHECK(ENCODE_BYTE(0x02) == 0);
+	TEST_CHECK(ENCODE_BYTE(0x03) == 1);
+	TEST_CHECK(ev.type == SND_SEQ_EVENT_NOTEOFF);
+	TEST_CHECK((ev.flags & SND_SEQ_EVENT_LENGTH_MASK) == SND_SEQ_EVENT_LENGTH_FIXED);
+	TEST_CHECK(ev.data.note.channel == 1);
+	TEST_CHECK(ev.data.note.note == 2);
+	TEST_CHECK(ev.data.note.velocity == 3);
+	TEST_CHECK(ENCODE_BYTE(0x04) == 0);
+	TEST_CHECK(ENCODE_BYTE(0xf8) == 1);
+	TEST_CHECK(ev.type == SND_SEQ_EVENT_CLOCK);
+	TEST_CHECK(ENCODE_BYTE(0x05) == 1);
+	TEST_CHECK(ev.type == SND_SEQ_EVENT_NOTEOFF);
+	TEST_CHECK(ev.data.note.channel == 1);
+	TEST_CHECK(ev.data.note.note == 4);
+	TEST_CHECK(ev.data.note.velocity == 5);
+
+	snd_midi_event_free(midi_event);
+}
+
+int main(void)
+{
+	test_decode();
+	test_reset_decode();
+	test_encode();
+	test_reset_encode();
+	test_encode_byte();
+	test_init();
+	return TEST_EXIT_CODE();
+}
diff --git a/test/lsb/test.h b/test/lsb/test.h
new file mode 100644
index 00000000..ff697c58
--- /dev/null
+++ b/test/lsb/test.h
@@ -0,0 +1,29 @@
+#ifndef TEST_H_INCLUDED
+#define TEST_H_INCLUDED
+
+#include <stdio.h>
+#include <alsa/asoundlib.h>
+
+/* XXX this variable definition does not belong in a header file */
+static int any_test_failed;
+
+#define TEST_CHECK(cond) do \
+		if (!(cond)) { \
+			fprintf(stderr, "%s:%d: test failed: %s\n", __FILE__, __LINE__, #cond); \
+			any_test_failed = 1; \
+		} \
+	while (0)
+
+#define ALSA_CHECK(fn) ({ \
+		int err = fn; \
+		if (err < 0) { \
+			fprintf(stderr, "%s:%d: ALSA function call failed (%s): %s\n", \
+				__FILE__, __LINE__, snd_strerror(err), #fn); \
+			any_test_failed = 1; \
+		} \
+		err; \
+	})
+
+#define TEST_EXIT_CODE() any_test_failed
+
+#endif