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framehooks: Add callback for determining if a hook is consuming frames of a specific type.

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In the past framehooks have had no capability to determine what frame types a hook
is actually interested in consuming. This has meant that code has had to assume they
want all frames, thus preventing native bridging.

This change adds a callback which allows a framehook to be queried for whether it
is consuming a frame of a specific type. The native RTP bridging module has also
been updated to take advantange of this, allowing native bridging to occur when
previously it would not.

ASTERISK-23497 #comment Reported by: Etienne Lessard
ASTERISK-23497 #close

Review: https://reviewboard.asterisk.org/r/3522/


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/12@413681 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Joshua Colp
2014-05-11 02:05:26 +00:00
parent 1ccc4e5b70
commit c7eb0933b2
6 changed files with 171 additions and 95 deletions
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9
bridges/bridge_native_rtp.c
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@@ -288,10 +288,16 @@ static struct ast_frame *native_rtp_framehook(struct ast_channel *chan, struct a
return f;
}
/*! \brief Callback function which informs upstream if we are consuming a frame of a specific type */
static int native_rtp_framehook_consume(void *data, enum ast_frame_type type)
{
return (type == AST_FRAME_CONTROL ? 1 : 0);
}
/*! \brief Internal helper function which checks whether the channels are compatible with our native bridging */
static int native_rtp_bridge_capable(struct ast_channel *chan)
{
return !ast_channel_has_audio_frame_or_monitor(chan);
return !ast_channel_has_hook_requiring_audio(chan);
}
static int native_rtp_bridge_compatible(struct ast_bridge *bridge)
@@ -392,6 +398,7 @@ static int native_rtp_bridge_framehook_attach(struct ast_bridge_channel *bridge_
static struct ast_framehook_interface hook = {
.version = AST_FRAMEHOOK_INTERFACE_VERSION,
.event_cb = native_rtp_framehook,
.consume_cb = native_rtp_framehook_consume,
};
if (!data) {