app_confbridge: Add "all" variants of REMB behavior.

When producing a combined REMB value the normal behavior
is to have a REMB value which is unique for each sender
based on all of their receivers. This can result in one
sender having low bitrate while all the rest are high.

This change adds "all" variants which produces a bridge
level REMB value instead. All REMB reports are combined
together into a single REMB value that is the same for
each sender.

ASTERISK-28401

Change-Id: I883e6cc26003b497c8180b346111c79a131ba88c
This commit is contained in:
Joshua Colp
2019-04-30 11:22:44 +00:00
parent 45a9ff8286
commit 80dba268ea
8 changed files with 122 additions and 9 deletions

View File

@@ -1565,6 +1565,12 @@ static struct confbridge_conference *join_conference_bridge(const char *conferen
ast_brige_set_remb_behavior(conference->bridge, AST_BRIDGE_VIDEO_SFU_REMB_LOWEST);
} else if (ast_test_flag(&conference->b_profile, BRIDGE_OPT_REMB_BEHAVIOR_HIGHEST)) {
ast_brige_set_remb_behavior(conference->bridge, AST_BRIDGE_VIDEO_SFU_REMB_HIGHEST);
} else if (ast_test_flag(&conference->b_profile, BRIDGE_OPT_REMB_BEHAVIOR_AVERAGE_ALL)) {
ast_brige_set_remb_behavior(conference->bridge, AST_BRIDGE_VIDEO_SFU_REMB_AVERAGE_ALL);
} else if (ast_test_flag(&conference->b_profile, BRIDGE_OPT_REMB_BEHAVIOR_LOWEST_ALL)) {
ast_brige_set_remb_behavior(conference->bridge, AST_BRIDGE_VIDEO_SFU_REMB_LOWEST_ALL);
} else if (ast_test_flag(&conference->b_profile, BRIDGE_OPT_REMB_BEHAVIOR_HIGHEST_ALL)) {
ast_brige_set_remb_behavior(conference->bridge, AST_BRIDGE_VIDEO_SFU_REMB_HIGHEST_ALL);
}
}

View File

@@ -505,6 +505,18 @@
<enum name="highest">
<para>The highest estimated maximum bitrate is forwarded to the sender.</para>
</enum>
<enum name="average_all">
<para>The average of all estimated maximum bitrates is taken from all
receivers in the bridge and a single value is sent to each sender.</para>
</enum>
<enum name="lowest_all">
<para>The lowest estimated maximum bitrate of all receivers in the bridge
is taken and sent to each sender.</para>
</enum>
<enum name="highest_all">
<para>The highest estimated maximum bitrate of all receivers in the bridge
is taken and sent to each sender.</para>
</enum>
</enumlist>
</description>
</configOption>
@@ -1737,7 +1749,8 @@ static char *handle_cli_confbridge_show_bridge_profile(struct ast_cli_entry *e,
switch (b_profile.flags
& (BRIDGE_OPT_REMB_BEHAVIOR_AVERAGE | BRIDGE_OPT_REMB_BEHAVIOR_LOWEST
| BRIDGE_OPT_REMB_BEHAVIOR_HIGHEST)) {
| BRIDGE_OPT_REMB_BEHAVIOR_HIGHEST | BRIDGE_OPT_REMB_BEHAVIOR_AVERAGE_ALL
| BRIDGE_OPT_REMB_BEHAVIOR_LOWEST_ALL | BRIDGE_OPT_REMB_BEHAVIOR_LOWEST_ALL)) {
case BRIDGE_OPT_REMB_BEHAVIOR_AVERAGE:
ast_cli(a->fd, "REMB Behavior: average\n");
break;
@@ -1747,6 +1760,15 @@ static char *handle_cli_confbridge_show_bridge_profile(struct ast_cli_entry *e,
case BRIDGE_OPT_REMB_BEHAVIOR_HIGHEST:
ast_cli(a->fd, "REMB Behavior: highest\n");
break;
case BRIDGE_OPT_REMB_BEHAVIOR_AVERAGE_ALL:
ast_cli(a->fd, "REMB Behavior: average_all\n");
break;
case BRIDGE_OPT_REMB_BEHAVIOR_LOWEST_ALL:
ast_cli(a->fd, "REMB Behavior: lowest_all\n");
break;
case BRIDGE_OPT_REMB_BEHAVIOR_HIGHEST_ALL:
ast_cli(a->fd, "REMB Behavior: highest_all\n");
break;
default:
ast_assert(0);
break;
@@ -2108,7 +2130,10 @@ static int remb_behavior_handler(const struct aco_option *opt, struct ast_variab
ast_clear_flag(b_profile, BRIDGE_OPT_REMB_BEHAVIOR_AVERAGE |
BRIDGE_OPT_REMB_BEHAVIOR_LOWEST |
BRIDGE_OPT_REMB_BEHAVIOR_HIGHEST);
BRIDGE_OPT_REMB_BEHAVIOR_HIGHEST |
BRIDGE_OPT_REMB_BEHAVIOR_AVERAGE_ALL |
BRIDGE_OPT_REMB_BEHAVIOR_LOWEST_ALL |
BRIDGE_OPT_REMB_BEHAVIOR_HIGHEST_ALL);
if (!strcasecmp(var->value, "average")) {
ast_set_flag(b_profile, BRIDGE_OPT_REMB_BEHAVIOR_AVERAGE);
@@ -2116,6 +2141,12 @@ static int remb_behavior_handler(const struct aco_option *opt, struct ast_variab
ast_set_flag(b_profile, BRIDGE_OPT_REMB_BEHAVIOR_LOWEST);
} else if (!strcasecmp(var->value, "highest")) {
ast_set_flag(b_profile, BRIDGE_OPT_REMB_BEHAVIOR_HIGHEST);
} else if (!strcasecmp(var->value, "average_all")) {
ast_set_flag(b_profile, BRIDGE_OPT_REMB_BEHAVIOR_AVERAGE_ALL);
} else if (!strcasecmp(var->value, "lowest_all")) {
ast_set_flag(b_profile, BRIDGE_OPT_REMB_BEHAVIOR_LOWEST_ALL);
} else if (!strcasecmp(var->value, "highest_all")) {
ast_set_flag(b_profile, BRIDGE_OPT_REMB_BEHAVIOR_HIGHEST_ALL);
} else {
return -1;
}

View File

@@ -82,6 +82,9 @@ enum bridge_profile_flags {
BRIDGE_OPT_REMB_BEHAVIOR_LOWEST = (1 << 9), /*!< The lowest estimated maximum bitrate is sent to the sender */
BRIDGE_OPT_REMB_BEHAVIOR_HIGHEST = (1 << 10), /*!< The highest estimated maximum bitrate is sent to the sender */
BRIDGE_OPT_ENABLE_EVENTS = (1 << 11), /*!< Enable sending events to participants */
BRIDGE_OPT_REMB_BEHAVIOR_AVERAGE_ALL = (1 << 12), /*!< The average of all REMB reports in the entire bridge is sent to each sender */
BRIDGE_OPT_REMB_BEHAVIOR_LOWEST_ALL = (1 << 13), /*!< The lowest estimated maximum bitrate from all receivers is sent to each sender */
BRIDGE_OPT_REMB_BEHAVIOR_HIGHEST_ALL = (1 << 14), /*!< The highest estimated maximum bitrate from all receivers is sent to each sender */
};
enum conf_menu_action_id {