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webrtc: mark streams as active on renegotiation as well.

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Otherwise when bundling, only the changed streams would be considered as
to whether the bundled transport needs to be blocked as all streams are
inactive.

Scenario is one transceiver changes direction to inactive and as that is
the only change in transciever direction, the entire bundled transport would
be blocked even if there are other active transceivers inside the same bundled
transport that are still active.

Fix by always checking the activeness of a stream regardless of if the
transceiverr has changed direction.
This commit is contained in:
Matthew Waters 2020-03-25 14:46:15 +11:00
parent c3a9d2dc64
commit 319a5e5779
1 changed files with 17 additions and 14 deletions
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31
ext/webrtc/gstwebrtcbin.c
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@ -3794,8 +3794,24 @@ _update_transceiver_from_sdp_media (GstWebRTCBin * webrtc,
}
}
if (new_dir == GST_WEBRTC_RTP_TRANSCEIVER_DIRECTION_INACTIVE) {
if (!bundled) {
/* Not a bundled stream means this entire transport is inactive,
* so set the receive state to BLOCK below */
stream->active = FALSE;
receive_state = RECEIVE_STATE_BLOCK;
}
} else {
/* If this transceiver is active for sending or receiving,
* we still need receive at least RTCP, so need to unblock
* the receive bin below. */
GST_LOG_OBJECT (webrtc, "marking stream %p as active", stream);
receive_state = RECEIVE_STATE_PASS;
stream->active = TRUE;
}
if (new_dir != prev_dir) {
GST_TRACE_OBJECT (webrtc, "transceiver direction change");
GST_DEBUG_OBJECT (webrtc, "transceiver direction change");
if (new_dir == GST_WEBRTC_RTP_TRANSCEIVER_DIRECTION_INACTIVE) {
GstWebRTCBinPad *pad;
@ -3814,20 +3830,7 @@ _update_transceiver_from_sdp_media (GstWebRTCBin * webrtc,
gst_object_unref (pad);
}
if (!bundled) {
/* Not a bundled stream means this entire transport is inactive,
* so set the receive state to BLOCK below */
stream->active = FALSE;
receive_state = RECEIVE_STATE_BLOCK;
}
/* XXX: send eos event up the sink pad as well? */
} else {
/* If this transceiver is active for sending or receiving,
* we still need receive at least RTCP, so need to unblock
* the receive bin below. */
receive_state = RECEIVE_STATE_PASS;
stream->active = TRUE;
}
if (new_dir == GST_WEBRTC_RTP_TRANSCEIVER_DIRECTION_SENDONLY ||