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res/ari/resource_bridges: Add the ability to manipulate the video source

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In multi-party bridges, Asterisk currently supports two video modes:
 * Follow the talker, in which the speaker with the most energy is shown
   to all participants but the speaker, and the speaker sees the
   previous video source
 * Explicitly set video sources, in which all participants see a locked
   video source

Prior to this patch, ARI had no ability to manipulate the video source.
This isn't important for two-party bridges, in which Asterisk merely
relays the video between the participants. However, in a multi-party
bridge, it can be advantageous to allow an external application to
manipulate the video source.

This patch provides two new routes to accomplish this:
(1) setVideoSource: POST /bridges/{bridgeId}/videoSource/{channelId}
    Sets a video source to an explicit channel
(2) clearVideoSource: DELETE /bridges/{bridgeId}/videoSource
    Removes any explicit video source, and sets the video mode to talk
    detection

ASTERISK-26595 #close

Change-Id: I98e455d5bffc08ea5e8d6b84ccaf063c714e6621
This commit is contained in:
Matt Jordan
2016-11-08 10:11:41 -06:00
parent a58d359701
commit d23b4af477
15 changed files with 645 additions and 14 deletions
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7
res/stasis/app.c
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@@ -701,6 +701,13 @@ static void sub_bridge_update_handler(void *data,
json = simple_bridge_event("BridgeDestroyed", old_snapshot, tv);
} else if (!old_snapshot) {
json = simple_bridge_event("BridgeCreated", new_snapshot, tv);
} else if (new_snapshot && old_snapshot
&& strcmp(new_snapshot->video_source_id, old_snapshot->video_source_id)) {
json = simple_bridge_event("BridgeVideoSourceChanged", new_snapshot, tv);
if (json && !ast_strlen_zero(old_snapshot->video_source_id)) {
ast_json_object_set(json, "old_video_source_id",
ast_json_string_create(old_snapshot->video_source_id));
}
}
if (json) {