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Merge pull request #1886 from nextcloud/bugfix/1852/black-screen-or-single-videoframe-for-audiocalls

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Use Transceivers instead of constraints to discard received video tracks
This commit is contained in:
Marcel Hibbe 2022-03-30 15:25:55 +02:00 committed by GitHub
commit 3e941edc24
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2 changed files with 43 additions and 2 deletions
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17
app/src/main/java/com/nextcloud/talk/adapters/ParticipantsAdapter.java
View File

@ -19,6 +19,7 @@ import com.nextcloud.talk.activities.CallActivity;
import com.nextcloud.talk.utils.DisplayUtils;
import org.webrtc.MediaStream;
import org.webrtc.MediaStreamTrack;
import org.webrtc.RendererCommon;
import org.webrtc.SurfaceViewRenderer;
import org.webrtc.VideoTrack;
@ -140,7 +141,21 @@ public class ParticipantsAdapter extends BaseAdapter {
}
private boolean hasVideoStream(ParticipantDisplayItem participantDisplayItem, MediaStream mediaStream) {
return mediaStream != null && mediaStream.videoTracks != null && mediaStream.videoTracks.size() > 0 && participantDisplayItem.isStreamEnabled();
if (!participantDisplayItem.isStreamEnabled()) {
return false;
}
if (mediaStream == null || mediaStream.videoTracks == null) {
return false;
}
for (VideoTrack t : mediaStream.videoTracks) {
if (MediaStreamTrack.State.LIVE == t.state()) {
return true;
}
}
return false;
}
private int scaleGridViewItemHeight() {

28
app/src/main/java/com/nextcloud/talk/webrtc/PeerConnectionWrapper.java
View File

@ -44,9 +44,11 @@ import org.webrtc.DataChannel;
import org.webrtc.IceCandidate;
import org.webrtc.MediaConstraints;
import org.webrtc.MediaStream;
import org.webrtc.MediaStreamTrack;
import org.webrtc.PeerConnection;
import org.webrtc.PeerConnectionFactory;
import org.webrtc.RtpReceiver;
import org.webrtc.RtpTransceiver;
import org.webrtc.SdpObserver;
import org.webrtc.SessionDescription;
import org.webrtc.VideoTrack;
@ -256,6 +258,15 @@ public class PeerConnectionWrapper {
return isMCUPublisher;
}
private boolean shouldReceiveVideo() {
for (MediaConstraints.KeyValuePair keyValuePair : mediaConstraints.mandatory) {
if ("OfferToReceiveVideo".equals(keyValuePair.getKey())) {
return !Boolean.parseBoolean(keyValuePair.getValue());
}
}
return false;
}
private class MagicDataChannelObserver implements DataChannel.Observer {
@Override
@ -444,7 +455,22 @@ public class PeerConnectionWrapper {
public void onSetSuccess() {
if (peerConnection != null) {
if (peerConnection.getLocalDescription() == null) {
peerConnection.createAnswer(magicSdpObserver, mediaConstraints);
if (shouldReceiveVideo()) {
for (RtpTransceiver t : peerConnection.getTransceivers()) {
if (t.getMediaType().equals(MediaStreamTrack.MediaType.MEDIA_TYPE_VIDEO)) {
t.stop();
}
}
Log.d(TAG, "Stop all Transceivers for MEDIA_TYPE_VIDEO.");
}
/*
Passed 'MediaConstraints' will be ignored by WebRTC when using UNIFIED PLAN.
See for details: https://docs.google.com/document/d/1PPHWV6108znP1tk_rkCnyagH9FK205hHeE9k5mhUzOg/edit#heading=h.9dcmkavg608r
*/
peerConnection.createAnswer(magicSdpObserver, new MediaConstraints());
}
if (peerConnection.getRemoteDescription() != null) {