Add SDP translator and PJMEDIA implementation.

This creates the following:
* Asterisk's internal representation of an SDP
* An API for translating SDPs from one format to another
* An implementation of a translator for PJMEDIA

Change-Id: Ie2ecd3cbebe76756577be9b133e84d2ee356d46b

1 files changed, 577 insertions, 0 deletions

diff --git a/res/res_sdp_translator_pjmedia.c b/res/res_sdp_translator_pjmedia.c
new file mode 100644
index 000000000..141b97617
--- /dev/null
+++ b/res/res_sdp_translator_pjmedia.c
@@ -0,0 +1,577 @@
+/*
+ * Asterisk -- An open source telephony toolkit.
+ *
+ * Copyright (C) 2017, Digium, Inc.
+ *
+ * Mark Michelson <mmichelson@digium.com>
+ *
+ * See http://www.asterisk.org for more information about
+ * the Asterisk project. Please do not directly contact
+ * any of the maintainers of this project for assistance;
+ * the project provides a web site, mailing lists and IRC
+ * channels for your use.
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License Version 2. See the LICENSE file
+ * at the top of the source tree.
+ */
+
+#include "asterisk.h"
+#include "asterisk/sdp_translator.h"
+#include "asterisk/sdp_options.h"
+#include "asterisk/sdp_priv.h"
+#include "asterisk/vector.h"
+#include "asterisk/netsock2.h"
+#include "asterisk/utils.h"
+#include "asterisk/config.h"
+#include "asterisk/test.h"
+#include "asterisk/module.h"
+#ifdef HAVE_PJPROJECT
+#include <pjlib.h>
+#include <pjmedia.h>
+#endif
+
+/*** MODULEINFO
+	<depend>pjproject</depend>
+	<support_level>core</support_level>
+ ***/
+
+static pj_caching_pool sdp_caching_pool;
+
+
+static void *pjmedia_new(void)
+{
+	pj_pool_t *pool;
+
+	pool = pj_pool_create(&sdp_caching_pool.factory, "pjmedia sdp translator", 1024, 1024, NULL);
+
+	return pool;
+}
+
+static void pjmedia_free(void *translator_priv)
+{
+	pj_pool_t *pool = translator_priv;
+
+	pj_pool_release(pool);
+}
+
+static void copy_pj_str(char *dest, const pj_str_t *src, size_t size)
+{
+	memcpy(dest, pj_strbuf(src), size);
+	dest[size] = '\0';
+}
+
+static void dup_pj_str(char **dest, const pj_str_t *src)
+{
+	*dest = ast_malloc(pj_strlen(src) + 1);
+	copy_pj_str(*dest, src, pj_strlen(src));
+}
+
+static void pjmedia_copy_o_line(struct ast_sdp *new_sdp, struct pjmedia_sdp_session * pjmedia_sdp)
+{
+	dup_pj_str(&new_sdp->o_line.user, &pjmedia_sdp->origin.user);
+	new_sdp->o_line.id = pjmedia_sdp->origin.id;
+	new_sdp->o_line.version = pjmedia_sdp->origin.version;
+	dup_pj_str(&new_sdp->o_line.family, &pjmedia_sdp->origin.addr_type);
+	dup_pj_str(&new_sdp->o_line.addr, &pjmedia_sdp->origin.addr);
+}
+
+static void pjmedia_copy_s_line(struct ast_sdp *new_sdp, struct pjmedia_sdp_session *pjmedia_sdp)
+{
+	dup_pj_str(&new_sdp->s_line, &pjmedia_sdp->name);
+}
+
+static void pjmedia_copy_t_line(struct ast_sdp_t_line *new_t_line, struct pjmedia_sdp_session *pjmedia_sdp)
+{
+	new_t_line->start = pjmedia_sdp->time.start;
+	new_t_line->end = pjmedia_sdp->time.stop;
+}
+
+static void pjmedia_copy_c_line(struct ast_sdp_c_line *new_c_line, struct pjmedia_sdp_conn *conn)
+{
+	/* It's perfectly reasonable for a c line not to be present, especially within a media description */
+	if (!conn) {
+		return;
+	}
+
+	dup_pj_str(&new_c_line->family, &conn->addr_type);
+	dup_pj_str(&new_c_line->addr, &conn->addr);
+}
+
+static void pjmedia_copy_m_line(struct ast_sdp_m_line *new_m_line, struct pjmedia_sdp_media *pjmedia_m_line)
+{
+	int i;
+
+	dup_pj_str(&new_m_line->type, &pjmedia_m_line->desc.media);
+	new_m_line->port = pjmedia_m_line->desc.port;
+	new_m_line->port_count = pjmedia_m_line->desc.port_count;
+	dup_pj_str(&new_m_line->profile, &pjmedia_m_line->desc.transport);
+	pjmedia_copy_c_line(&new_m_line->c_line, pjmedia_m_line->conn);
+
+	AST_VECTOR_INIT(&new_m_line->payloads, pjmedia_m_line->desc.fmt_count);
+	for (i = 0; i < pjmedia_m_line->desc.fmt_count; ++i) {
+		++new_m_line->payloads.current;
+		dup_pj_str(AST_VECTOR_GET_ADDR(&new_m_line->payloads, i), &pjmedia_m_line->desc.fmt[i]);
+	}
+}
+
+static void pjmedia_copy_a_lines(struct ast_sdp_a_line_vector *new_a_lines, pjmedia_sdp_attr **attr, unsigned int attr_count)
+{
+	int i;
+
+	AST_VECTOR_INIT(new_a_lines, attr_count);
+
+	for (i = 0; i < attr_count; ++i) {
+		struct ast_sdp_a_line *a_line;
+
+		++new_a_lines->current;
+		a_line = AST_VECTOR_GET_ADDR(new_a_lines, i);
+		dup_pj_str(&a_line->name, &attr[i]->name);
+		dup_pj_str(&a_line->value, &attr[i]->value);
+	}
+}
+
+static void pjmedia_copy_m_lines(struct ast_sdp *new_sdp, struct pjmedia_sdp_session *pjmedia_sdp)
+{
+	int i;
+
+	AST_VECTOR_INIT(&new_sdp->m_lines, pjmedia_sdp->media_count);
+
+	for (i = 0; i < pjmedia_sdp->media_count; ++i) {
+		++new_sdp->m_lines.current;
+
+		pjmedia_copy_m_line(AST_VECTOR_GET_ADDR(&new_sdp->m_lines, i), pjmedia_sdp->media[i]);
+		pjmedia_copy_a_lines(&AST_VECTOR_GET_ADDR(&new_sdp->m_lines, i)->a_lines, pjmedia_sdp->media[i]->attr, pjmedia_sdp->media[i]->attr_count);
+	}
+}
+
+static struct ast_sdp *pjmedia_to_sdp(void *in, void *translator_priv)
+{
+	struct pjmedia_sdp_session *pjmedia_sdp = in;
+
+	struct ast_sdp *new_sdp = ast_sdp_alloc();
+
+	pjmedia_copy_o_line(new_sdp, pjmedia_sdp);
+	pjmedia_copy_s_line(new_sdp, pjmedia_sdp);
+	pjmedia_copy_t_line(&new_sdp->t_line, pjmedia_sdp);
+	pjmedia_copy_c_line(&new_sdp->c_line, pjmedia_sdp->conn);
+	pjmedia_copy_a_lines(&new_sdp->a_lines, pjmedia_sdp->attr, pjmedia_sdp->attr_count);
+	pjmedia_copy_m_lines(new_sdp, pjmedia_sdp);
+
+	return new_sdp;
+}
+
+static void copy_o_line_pjmedia(pj_pool_t *pool, pjmedia_sdp_session *pjmedia_sdp, struct ast_sdp *sdp)
+{
+	pjmedia_sdp->origin.id = sdp->o_line.id;
+	pjmedia_sdp->origin.version = sdp->o_line.version;
+	pj_strdup2(pool, &pjmedia_sdp->origin.user, sdp->o_line.user);
+	pj_strdup2(pool, &pjmedia_sdp->origin.addr_type, sdp->o_line.family);
+	pj_strdup2(pool, &pjmedia_sdp->origin.addr, sdp->o_line.addr);
+	pj_strdup2(pool, &pjmedia_sdp->origin.net_type, "IN");
+}
+
+static void copy_s_line_pjmedia(pj_pool_t *pool, pjmedia_sdp_session *pjmedia_sdp, struct ast_sdp *sdp)
+{
+	pj_strdup2(pool, &pjmedia_sdp->name, sdp->s_line);
+}
+
+static void copy_t_line_pjmedia(pj_pool_t *pool, pjmedia_sdp_session *pjmedia_sdp, struct ast_sdp_t_line *t_line)
+{
+	pjmedia_sdp->time.start = t_line->start;
+	pjmedia_sdp->time.stop = t_line->end;
+}
+
+static void copy_c_line_pjmedia(pj_pool_t *pool, pjmedia_sdp_conn **conn, struct ast_sdp_c_line *c_line)
+{
+	pjmedia_sdp_conn *local_conn;
+	local_conn = PJ_POOL_ZALLOC_T(pool, pjmedia_sdp_conn);
+	pj_strdup2(pool, &local_conn->addr_type, c_line->family);
+	pj_strdup2(pool, &local_conn->addr, c_line->addr);
+	pj_strdup2(pool, &local_conn->net_type, "IN");
+
+	*conn = local_conn;
+}
+
+static void copy_a_lines_pjmedia(pj_pool_t *pool, pjmedia_sdp_session *pjmedia_sdp, struct ast_sdp_a_line_vector *a_lines)
+{
+	int i;
+
+	for (i = 0; i < AST_VECTOR_SIZE(a_lines); ++i) {
+		pjmedia_sdp_attr *attr;
+		pj_str_t value;
+
+		pj_strdup2(pool, &value, AST_VECTOR_GET(a_lines, i).value);
+		attr = pjmedia_sdp_attr_create(pool, AST_VECTOR_GET(a_lines, i).name, &value);
+		pjmedia_sdp_session_add_attr(pjmedia_sdp, attr);
+	}
+}
+
+static void copy_a_lines_pjmedia_media(pj_pool_t *pool, pjmedia_sdp_media *media, struct ast_sdp_a_line_vector *a_lines)
+{
+	int i;
+
+	for (i = 0; i < AST_VECTOR_SIZE(a_lines); ++i) {
+		pjmedia_sdp_attr *attr;
+		pj_str_t value;
+
+		pj_strdup2(pool, &value, AST_VECTOR_GET(a_lines, i).value);
+		attr = pjmedia_sdp_attr_create(pool, AST_VECTOR_GET(a_lines, i).name, &value);
+		pjmedia_sdp_media_add_attr(media, attr);
+	}
+}
+
+static void copy_m_line_pjmedia(pj_pool_t *pool, pjmedia_sdp_media *media, struct ast_sdp_m_line *m_line)
+{
+	int i;
+
+	media->desc.port = m_line->port;
+	media->desc.port_count = m_line->port_count;
+	pj_strdup2(pool, &media->desc.transport, m_line->profile);
+	pj_strdup2(pool, &media->desc.media, m_line->type);
+
+	for (i = 0; i < AST_VECTOR_SIZE(&m_line->payloads); ++i) {
+		pj_strdup2(pool, &media->desc.fmt[i], AST_VECTOR_GET(&m_line->payloads, i));
+		++media->desc.fmt_count;
+	}
+	if (m_line->c_line.addr) {
+		copy_c_line_pjmedia(pool, &media->conn, &m_line->c_line);
+	}
+	copy_a_lines_pjmedia_media(pool, media, &m_line->a_lines);
+}
+
+static void copy_m_lines_pjmedia(pj_pool_t *pool, pjmedia_sdp_session *pjmedia_sdp, struct ast_sdp *sdp)
+{
+	int i;
+
+	for (i = 0; i < AST_VECTOR_SIZE(&sdp->m_lines); ++i) {
+		pjmedia_sdp_media *media;
+
+		media = PJ_POOL_ZALLOC_T(pool, pjmedia_sdp_media);
+		copy_m_line_pjmedia(pool, media, AST_VECTOR_GET_ADDR(&sdp->m_lines, i));
+		pjmedia_sdp->media[pjmedia_sdp->media_count] = media;
+		++pjmedia_sdp->media_count;
+	}
+}
+
+static void *sdp_to_pjmedia(struct ast_sdp *sdp, void *translator_priv)
+{
+	pj_pool_t *pool = translator_priv;
+	pjmedia_sdp_session *pjmedia_sdp;
+
+	pjmedia_sdp = PJ_POOL_ZALLOC_T(pool, pjmedia_sdp_session);
+	copy_o_line_pjmedia(pool, pjmedia_sdp, sdp);
+	copy_s_line_pjmedia(pool, pjmedia_sdp, sdp);
+	copy_t_line_pjmedia(pool, pjmedia_sdp, &sdp->t_line);
+	copy_c_line_pjmedia(pool, &pjmedia_sdp->conn, &sdp->c_line);
+	copy_a_lines_pjmedia(pool, pjmedia_sdp, &sdp->a_lines);
+	copy_m_lines_pjmedia(pool, pjmedia_sdp, sdp);
+	return pjmedia_sdp;
+}
+
+static struct ast_sdp_translator_ops pjmedia_translator = {
+	.repr = AST_SDP_REPR_PJMEDIA,
+	.translator_new = pjmedia_new,
+	.translator_free = pjmedia_free,
+	.to_sdp = pjmedia_to_sdp,
+	.from_sdp = sdp_to_pjmedia,
+};
+
+#ifdef TEST_FRAMEWORK
+
+static int verify_s_line(char *s_line, char *expected)
+{
+	return strcmp(s_line, expected) == 0;
+}
+
+static int verify_c_line(struct ast_sdp_c_line *c_line, char *family, char *addr)
+{
+	return strcmp(c_line->family, family) == 0 && strcmp(c_line->addr, addr) == 0;
+}
+
+static int verify_t_line(struct ast_sdp_t_line *t_line, uint32_t start, uint32_t end)
+{
+	return t_line->start == start && t_line->end == end;
+}
+
+static int verify_m_line(struct ast_sdp *sdp, int index, char *type, int port, int port_count, char *profile, ...)
+{
+	struct ast_sdp_m_line *m_line;
+	int res;
+	va_list ap;
+	int i;
+
+	m_line = AST_VECTOR_GET_ADDR(&sdp->m_lines, index);
+
+	res = strcmp(m_line->type, type) == 0;
+	res |= m_line->port == port;
+	res |= m_line->port_count == port_count;
+	res |= strcmp(m_line->profile, profile) == 0;
+
+	va_start(ap, profile);
+	for (i = 0; i < AST_VECTOR_SIZE(&m_line->payloads); ++i) {
+		char *payload;
+
+		payload = va_arg(ap, char *);
+		if (!payload) {
+			res = -1;
+			break;
+		}
+		res |= strcmp(AST_VECTOR_GET(&m_line->payloads, i), payload) == 0;
+	}
+	va_end(ap);
+	return res;
+}
+
+static int verify_a_line(struct ast_sdp *sdp, int m_index, int a_index, char *name, char *value)
+{
+	struct ast_sdp_m_line *m_line;
+	struct ast_sdp_a_line *a_line;
+
+	m_line = AST_VECTOR_GET_ADDR(&sdp->m_lines, m_index);
+	a_line = AST_VECTOR_GET_ADDR(&m_line->a_lines, a_index);
+
+	return strcmp(a_line->name, name) == 0 && strcmp(a_line->value, value) == 0;
+}
+
+AST_TEST_DEFINE(pjmedia_to_sdp_test)
+{
+	struct ast_sdp_translator *translator;
+	pj_pool_t *pool;
+	char *sdp_str =
+      "v=0\r\n"
+      "o=alice 2890844526 2890844526 IN IP4 host.atlanta.example.com\r\n"
+      "s= \r\n"
+      "c=IN IP4 host.atlanta.example.com\r\n"
+      "t=0 0\r\n"
+      "m=audio 49170 RTP/AVP 0 8 97\r\n"
+      "a=rtpmap:0 PCMU/8000\r\n"
+      "a=rtpmap:8 PCMA/8000\r\n"
+      "a=rtpmap:97 iLBC/8000\r\n"
+	  "a=sendrecv\r\n"
+      "m=video 51372 RTP/AVP 31 32\r\n"
+      "a=rtpmap:31 H261/90000\r\n"
+      "a=rtpmap:32 MPV/90000\r\n";
+	pjmedia_sdp_session *pjmedia_sdp;
+	struct ast_sdp *sdp = NULL;
+	pj_status_t status;
+	enum ast_test_result_state res = AST_TEST_PASS;
+
+	switch (cmd) {
+	case TEST_INIT:
+		info->name = "pjmedia_to_sdp";
+		info->category = "/main/sdp/";
+		info->summary = "PJMEDIA to SDP unit test";
+		info->description =
+			"Ensures PJMEDIA SDPs are translated correctly";
+		return AST_TEST_NOT_RUN;
+	case TEST_EXECUTE:
+		break;
+	}
+
+	pool = pj_pool_create(&sdp_caching_pool.factory, "pjmedia to sdp test", 1024, 1024, NULL);
+
+	translator = ast_sdp_translator_new(AST_SDP_REPR_PJMEDIA);
+	if (!translator) {
+		ast_test_status_update(test, "Failed to create SDP translator\n");
+		res = AST_TEST_FAIL;
+		goto cleanup;
+	}
+
+	status = pjmedia_sdp_parse(pool, sdp_str, strlen(sdp_str), &pjmedia_sdp);
+	if (status != PJ_SUCCESS) {
+		ast_test_status_update(test, "Error parsing SDP\n");
+		res = AST_TEST_FAIL;
+		goto cleanup;
+	}
+
+	sdp = ast_sdp_translator_to_sdp(translator, pjmedia_sdp);
+
+	if (strcmp(sdp->o_line.user, "alice")) {
+		ast_test_status_update(test, "Unexpected SDP user '%s'\n", sdp->o_line.user);
+		res = AST_TEST_FAIL;
+		goto cleanup;
+	} else if (sdp->o_line.id != 2890844526u) {
+		ast_test_status_update(test, "Unexpected SDP id '%u'\n", sdp->o_line.id);
+		res = AST_TEST_FAIL;
+		goto cleanup;
+	} else if (sdp->o_line.version != 2890844526u) {
+		ast_test_status_update(test, "Unexpected SDP version '%u'\n", sdp->o_line.version);
+		res = AST_TEST_FAIL;
+		goto cleanup;
+	} else if (strcmp(sdp->o_line.family, "IP4")) {
+		ast_test_status_update(test, "Unexpected address family '%s'\n", sdp->o_line.family);
+		res = AST_TEST_FAIL;
+		goto cleanup;
+	} else if (strcmp(sdp->o_line.addr, "host.atlanta.example.com")) {
+		ast_test_status_update(test, "Unexpected address '%s'\n", sdp->o_line.addr);
+		res = AST_TEST_FAIL;
+		goto cleanup;
+	}
+
+	if (!verify_s_line(sdp->s_line, " ")) {
+		ast_test_status_update(test, "Bad s line\n");
+		res = AST_TEST_FAIL;
+		goto cleanup;
+	} else if (!verify_c_line(&sdp->c_line, "IP4", "host.atlanta.example.com")) {
+		ast_test_status_update(test, "Bad c line\n");
+		res = AST_TEST_FAIL;
+		goto cleanup;
+	} else if (!verify_t_line(&sdp->t_line, 0, 0)) {
+		ast_test_status_update(test, "Bad t line\n");
+		res = AST_TEST_FAIL;
+		goto cleanup;
+	}
+
+	if (!verify_m_line(sdp, 0, "audio", 49170, 1, "RTP/AVP", "0", "8", "97", NULL)) {
+		ast_test_status_update(test, "Bad m line 1\n");
+		res = AST_TEST_FAIL;
+		goto cleanup;
+	} else if (!verify_a_line(sdp, 0, 0, "rtpmap", "0 PCMU/8000")) {
+		ast_test_status_update(test, "Bad a line 1\n");
+		res = AST_TEST_FAIL;
+		goto cleanup;
+	} else if (!verify_a_line(sdp, 0, 1, "rtpmap", "8 PCMA/8000")) {
+		ast_test_status_update(test, "Bad a line 2\n");
+		res = AST_TEST_FAIL;
+		goto cleanup;
+	} else if (!verify_a_line(sdp, 0, 2, "rtpmap", "97 iLBC/8000")) {
+		ast_test_status_update(test, "Bad a line 3\n");
+		res = AST_TEST_FAIL;
+		goto cleanup;
+	} else if (!verify_a_line(sdp, 0, 3, "sendrecv", "")) {
+		ast_test_status_update(test, "Bad a line 3\n");
+		res = AST_TEST_FAIL;
+		goto cleanup;
+	} else if (!verify_m_line(sdp, 1, "video", 51372, 1, "RTP/AVP", "31", "32", NULL)) {
+		ast_test_status_update(test, "Bad m line 2\n");
+		res = AST_TEST_FAIL;
+		goto cleanup;
+	} else if (!verify_a_line(sdp, 1, 0, "rtpmap", "31 H261/90000")) {
+		ast_test_status_update(test, "Bad a line 4\n");
+		res = AST_TEST_FAIL;
+		goto cleanup;
+	} else if (!verify_a_line(sdp, 1, 1, "rtpmap", "32 MPV/90000")) {
+		ast_test_status_update(test, "Bad a line 5\n");
+		res = AST_TEST_FAIL;
+		goto cleanup;
+	}
+
+cleanup:
+	ast_sdp_free(sdp);
+	ast_sdp_translator_free(translator);
+	pj_pool_release(pool);
+	return res;
+}
+
+AST_TEST_DEFINE(sdp_to_pjmedia_test)
+{
+	struct ast_sdp_translator *translator;
+	char *sdp_str =
+      "v=0\r\n"
+      "o=alice 2890844526 2890844526 IN IP4 host.atlanta.example.com\r\n"
+      "s= \r\n"
+      "c=IN IP4 host.atlanta.example.com\r\n"
+      "t=0 0\r\n"
+      "m=audio 49170 RTP/AVP 0 8 97\r\n"
+      "a=rtpmap:0 PCMU/8000\r\n"
+      "a=rtpmap:8 PCMA/8000\r\n"
+      "a=rtpmap:97 iLBC/8000\r\n"
+	  "a=sendrecv\r\n"
+      "m=video 51372 RTP/AVP 31 32\r\n"
+      "a=rtpmap:31 H261/90000\r\n"
+      "a=rtpmap:32 MPV/90000\r\n\r\n";
+	pj_pool_t *pool;
+	pjmedia_sdp_session *pjmedia_sdp_orig;
+	pjmedia_sdp_session *pjmedia_sdp_dup;
+	struct ast_sdp *sdp = NULL;
+	pj_status_t status;
+	enum ast_test_result_state res = AST_TEST_PASS;
+
+	switch (cmd) {
+	case TEST_INIT:
+		info->name = "sdp_to_pjmedia";
+		info->category = "/main/sdp/";
+		info->summary = "SDP to PJMEDIA unit test";
+		info->description =
+			"Ensures PJMEDIA SDPs are translated correctly";
+		return AST_TEST_NOT_RUN;
+	case TEST_EXECUTE:
+		break;
+	}
+
+	pool = pj_pool_create(&sdp_caching_pool.factory, "pjmedia to sdp test", 1024, 1024, NULL);
+
+	translator = ast_sdp_translator_new(AST_SDP_REPR_PJMEDIA);
+	if (!translator) {
+		ast_test_status_update(test, "Failed to create SDP translator\n");
+		res = AST_TEST_FAIL;
+		goto cleanup;
+	}
+
+	status = pjmedia_sdp_parse(pool, sdp_str, strlen(sdp_str), &pjmedia_sdp_orig);
+	if (status != PJ_SUCCESS) {
+		ast_test_status_update(test, "Error parsing SDP\n");
+		res = AST_TEST_FAIL;
+		goto cleanup;
+	}
+
+	sdp = ast_sdp_translator_to_sdp(translator, pjmedia_sdp_orig);
+	pjmedia_sdp_dup = ast_sdp_translator_from_sdp(translator, sdp);
+
+	if ((status = pjmedia_sdp_session_cmp(pjmedia_sdp_orig, pjmedia_sdp_dup, 0)) != PJ_SUCCESS) {
+		char buf[2048];
+		char errbuf[256];
+		ast_test_status_update(test, "SDPs aren't equal\n");
+		pjmedia_sdp_print(pjmedia_sdp_orig, buf, sizeof(buf));
+		ast_log(LOG_NOTICE, "Original SDP is %s\n", buf);
+		pjmedia_sdp_print(pjmedia_sdp_dup, buf, sizeof(buf));
+		ast_log(LOG_NOTICE, "New SDP is %s\n", buf);
+		pjmedia_strerror(status, errbuf, sizeof(errbuf));
+		ast_log(LOG_NOTICE, "PJMEDIA says %d: '%s'\n", status, errbuf);
+		res = AST_TEST_FAIL;
+		goto cleanup;
+	}
+
+cleanup:
+	ast_sdp_free(sdp);
+	ast_sdp_translator_free(translator);
+	pj_pool_release(pool);
+	return res;
+}
+
+#endif /* TEST_FRAMEWORK */
+
+static int load_module(void)
+{
+	if (ast_sdp_register_translator(&pjmedia_translator)) {
+		return AST_MODULE_LOAD_DECLINE;
+	}
+	pj_caching_pool_init(&sdp_caching_pool, NULL, 1024 * 1024);
+	AST_TEST_REGISTER(pjmedia_to_sdp_test);
+	AST_TEST_REGISTER(sdp_to_pjmedia_test);
+
+	return AST_MODULE_LOAD_SUCCESS;
+}
+
+static int unload_module(void)
+{
+	ast_sdp_unregister_translator(&pjmedia_translator);
+	pj_caching_pool_destroy(&sdp_caching_pool);
+	AST_TEST_UNREGISTER(pjmedia_to_sdp_test);
+	AST_TEST_REGISTER(sdp_to_pjmedia_test);
+	return 0;
+}
+
+static int reload_module(void)
+{
+	return 0;
+}
+
+AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "PJMEDIA SDP Translator",
+	.support_level = AST_MODULE_SUPPORT_CORE,
+	.load = load_module,
+	.unload = unload_module,
+	.reload = reload_module,
+	.load_pri = AST_MODPRI_CHANNEL_DEPEND,
+);