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<!doctype html>
<meta charset=utf-8>
<meta name="timeout" content="long">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="../RTCPeerConnection-helper.js"></script>
<script>
'use strict';
async function pollGetStatsUntil(t, pc, condition, pollingMs = 100) {
while (true) {
const report = await pc.getStats();
for (const stats of report.values()) {
if (condition(report, stats) == true) {
// Condition satisfied, stop polling.
return;
}
}
await new Promise(r => t.step_timeout(r, pollingMs));
}
}
function isRtpWithCodec(report, stats, mimeType) {
if (stats.type != 'outbound-rtp' && stats.type != 'inbound-rtp') {
return false; // Not an RTP stats object.
}
const codec = report.get(stats.codecId);
return codec && codec.mimeType == mimeType;
}
promise_test(async t => {
const sendCodec = RTCRtpSender.getCapabilities('video').codecs.find(
codec => codec.mimeType == 'video/H265');
const recvCodec = RTCRtpReceiver.getCapabilities('video').codecs.find(
codec => codec.mimeType == 'video/H265');
assert_implements_optional(
sendCodec != undefined && recvCodec != undefined,
'H265 not available for sending or receiving. Loopback requires both.');
const pc1 = new RTCPeerConnection();
t.add_cleanup(() => pc1.close());
const pc2 = new RTCPeerConnection();
t.add_cleanup(() => pc2.close());
pc1.onicecandidate = (e) => pc2.addIceCandidate(e.candidate);
pc2.onicecandidate = (e) => pc1.addIceCandidate(e.candidate);
const stream = await getNoiseStream({video:{width:640, height:360}});
const [track] = stream.getVideoTracks();
t.add_cleanup(() => track.stop());
// Negotiate H265.
const transceiver = pc1.addTransceiver(track);
transceiver.setCodecPreferences([sendCodec]);
await pc1.setLocalDescription();
await pc2.setRemoteDescription(pc1.localDescription);
await pc2.setLocalDescription();
await pc1.setRemoteDescription(pc2.localDescription);
// Wait for H265 frames to be encoded and sent.
await pollGetStatsUntil(t, pc1, (report, stats) => {
if (!isRtpWithCodec(report, stats, 'video/H265')) {
return false;
}
assert_equals(stats.type, 'outbound-rtp');
return stats.framesEncoded > 0 && stats.framesSent > 0;
});
// Wait for H265 frames to be received and decoded.
await pollGetStatsUntil(t, pc2, (report, stats) => {
if (!isRtpWithCodec(report, stats, 'video/H265')) {
return false;
}
assert_equals(stats.type, 'inbound-rtp');
return stats.framesReceived > 0 && stats.framesDecoded > 0;
});
}, `Negotiate H265 loopback and verify frames are flowing`);
</script>
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