Page History

...

Note that stream transcoding on server is enabled when stream published as H264 is played as VP8 and vice versa.

7. iOS Safari 12.1 does not send video frames when picture with certain resolution is published

Symptoms: when H264 stream is published from iOS Safari 12.1, subscriber receives audio packets only, publishers WebRTC statistics also shows audio frames only

Solution: enable VP8 on server side

codecs=opus,...,h264,vp8,...

exclude H264 for publishing or playing on clent side

publishStream = session.createStream({
    ...
    stripCodecs: "h264,H264"
}).on(STREAM_STATUS.PUBLISHING, function (publishStream) {
    ...
});
publishStream.publish();

Note that stream transcoding on server is enabled when stream published as H264 is played as VP8 and vice versa.