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stream: Make ast_stream_topology_create_from_format_cap() allow NULL cap.

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Change-Id: Ie29760c49c25d7022ba2124698283181a0dd5d08
This commit is contained in:
Richard Mudgett
2017-04-20 19:25:10 -05:00
parent d71c6e3bfd
commit 5c1851cbc0
3 changed files with 5 additions and 11 deletions
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2
include/asterisk/stream.h
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@@ -356,7 +356,7 @@ int ast_stream_topology_set_stream(struct ast_stream_topology *topology,
* creates a topology and separates the media types in format_cap into
* separate streams.
*
* \param caps The format capabilities structure
* \param caps The format capabilities structure (NULL creates an empty topology)
*
* \retval non-NULL success
* \retval NULL failure

8
main/channel_internal_api.c
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@@ -852,14 +852,10 @@ void ast_channel_nativeformats_set(struct ast_channel *chan,
return;
}
if ((!ast_channel_is_multistream(chan)) || !value) {
if (!ast_channel_is_multistream(chan) || !value) {
struct ast_stream_topology *new_topology;
if (!value) {
new_topology = ast_stream_topology_alloc();
} else {
new_topology = ast_stream_topology_create_from_format_cap(value);
}
new_topology = ast_stream_topology_create_from_format_cap(value);
ast_channel_internal_set_stream_topology(chan, new_topology);
}
}

6
main/stream.c
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@@ -345,11 +345,9 @@ struct ast_stream_topology *ast_stream_topology_create_from_format_cap(
struct ast_stream_topology *topology;
enum ast_media_type type;
ast_assert(cap != NULL);
topology = ast_stream_topology_alloc();
if (!topology) {
return NULL;
if (!topology || !cap || !ast_format_cap_count(cap)) {
return topology;
}
for (type = AST_MEDIA_TYPE_UNKNOWN + 1; type < AST_MEDIA_TYPE_END; type++) {