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app_confbridge/bridge_softmix: Add ability to force estimated bitrate

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app_confbridge now has the ability to set the estimated bitrate on an
SFU bridge.  To use it, set a bridge profile's remb_behavior to "force"
and set remb_estimated_bitrate to a rate in bits per second.  The
remb_estimated_bitrate parameter is ignored if remb_behavior is something
other than "force".

Change-Id: Idce6464ff014a37ea3b82944452e56cc4d75ab0a
This commit is contained in:
George Joseph
2020-09-24 12:46:15 -06:00
committed by Friendly Automation
parent 374d18cb97
commit 3b0a53f257
8 changed files with 70 additions and 3 deletions
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10
bridges/bridge_softmix.c
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@@ -1396,6 +1396,7 @@ static void remb_collect_report_all(struct ast_bridge *bridge, struct softmix_br
case AST_BRIDGE_VIDEO_SFU_REMB_AVERAGE:
case AST_BRIDGE_VIDEO_SFU_REMB_LOWEST:
case AST_BRIDGE_VIDEO_SFU_REMB_HIGHEST:
case AST_BRIDGE_VIDEO_SFU_REMB_FORCE:
/* These will never actually get hit due to being handled by remb_collect_report below */
break;
}
@@ -1417,6 +1418,12 @@ static void remb_collect_report(struct ast_bridge *bridge, struct ast_bridge_cha
/* We evenly divide the available maximum bitrate across the video sources
* to this receiver so each source gets an equal slice.
*/
if (bridge->softmix.video_mode.mode_data.sfu_data.remb_behavior == AST_BRIDGE_VIDEO_SFU_REMB_FORCE) {
softmix_data->bitrate = bridge->softmix.video_mode.mode_data.sfu_data.estimated_bitrate;
return;
}
bitrate = (sc->remb.br_mantissa << sc->remb.br_exp) / AST_VECTOR_SIZE(&sc->video_sources);
/* If this receiver has no bitrate yet ignore it */
@@ -1462,6 +1469,9 @@ static void remb_collect_report(struct ast_bridge *bridge, struct ast_bridge_cha
case AST_BRIDGE_VIDEO_SFU_REMB_HIGHEST_ALL:
/* These will never actually get hit due to being handled by remb_collect_report_all above */
break;
case AST_BRIDGE_VIDEO_SFU_REMB_FORCE:
/* Don't do anything, we've already forced it */
break;
}
}