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channel: Add ability to request an outgoing channel with stream topology.

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This change extends the ast_request functionality by adding another
function and callback to create an outgoing channel with a requested
stream topology. Fallback is provided by either converting the
requested stream topology into a format capabilities structure if
the channel driver does not support streams or by converting the
requested format capabilities into a stream topology if the channel
driver does support streams.

The Dial application has also been updated to request an outgoing
channel with the stream topology of the calling channel.

ASTERISK-26959

Change-Id: Ifa9037a672ac21d42dd7125aa09816dc879a70e6
This commit is contained in:
Joshua Colp
2017-04-24 15:59:44 +00:00
parent dc6654d969
commit 2b22c3c84b
6 changed files with 230 additions and 47 deletions
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59
tests/test_stream.c
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@@ -1773,6 +1773,63 @@ done:
return res;
}
AST_TEST_DEFINE(format_cap_from_stream_topology)
{
RAII_VAR(struct ast_format_cap *, caps, NULL, ao2_cleanup);
RAII_VAR(struct ast_format_cap *, stream_caps, NULL, ao2_cleanup);
struct ast_stream_topology *topology;
switch (cmd) {
case TEST_INIT:
info->name = "format_cap_from_stream_topology";
info->category = "/main/stream/";
info->summary = "stream topology to format capabilities conversion test";
info->description =
"Test that converting a stream topology to format capabilities results in expected formats";
return AST_TEST_NOT_RUN;
case TEST_EXECUTE:
break;
}
caps = ast_format_cap_alloc(AST_FORMAT_CAP_FLAG_DEFAULT);
if (!caps) {
ast_test_status_update(test, "Could not allocate an empty format capabilities structure\n");
return AST_TEST_FAIL;
}
if (ast_format_cap_append(caps, ast_format_ulaw, 0)) {
ast_test_status_update(test, "Failed to append a ulaw format to capabilities for channel nativeformats\n");
return AST_TEST_FAIL;
}
if (ast_format_cap_append(caps, ast_format_h264, 0)) {
ast_test_status_update(test, "Failed to append an h264 format to capabilities for channel nativeformats\n");
return AST_TEST_FAIL;
}
topology = ast_stream_topology_create_from_format_cap(caps);
if (!topology) {
ast_test_status_update(test, "Failed to create a stream topology from format capabilities of ulaw and h264\n");
return AST_TEST_FAIL;
}
stream_caps = ast_format_cap_from_stream_topology(topology);
if (!stream_caps) {
ast_test_status_update(test, "Failed to create a format capabilities from a stream topology\n");
ast_stream_topology_free(topology);
return AST_TEST_FAIL;
}
ast_stream_topology_free(topology);
if (!ast_format_cap_identical(caps, stream_caps)) {
ast_test_status_update(test, "Converting format capabilities into topology and back resulted in different formats\n");
return AST_TEST_FAIL;
}
return AST_TEST_PASS;
}
static int unload_module(void)
{
AST_TEST_UNREGISTER(stream_create);
@@ -1797,6 +1854,7 @@ static int unload_module(void)
AST_TEST_UNREGISTER(stream_topology_change_request_from_channel_non_multistream);
AST_TEST_UNREGISTER(stream_topology_change_request_from_application);
AST_TEST_UNREGISTER(stream_topology_change_request_from_channel);
AST_TEST_UNREGISTER(format_cap_from_stream_topology);
return 0;
}
@@ -1823,6 +1881,7 @@ static int load_module(void)
AST_TEST_REGISTER(stream_topology_change_request_from_channel_non_multistream);
AST_TEST_REGISTER(stream_topology_change_request_from_application);
AST_TEST_REGISTER(stream_topology_change_request_from_channel);
AST_TEST_REGISTER(format_cap_from_stream_topology);
return AST_MODULE_LOAD_SUCCESS;
}