| <!doctype html> |
| <meta charset=utf-8> |
| <meta name="timeout" content="long"> |
| <title>RTCRtpSender.prototype.setParameters for generating keyFrames</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="RTCPeerConnection-helper.js"></script> |
| <script src="third_party/sdp/sdp.js"></script> |
| <script src="simulcast/simulcast.js"></script> |
| <script> |
| 'use strict'; |
| |
| // https://w3c.github.io/webrtc-extensions/#rtcrtpsender-setparameters-keyframe |
| |
| async function waitForKeyFrameCount(t, pc, spatialLayer, minimumKeyFrames) { |
| // return after 5 seconds. |
| const startTime = performance.now(); |
| while (true) { |
| const report = await pc.getStats(); |
| const stats = [...report.values()].find(({type, rid}) => type === 'outbound-rtp' && rid === spatialLayer); |
| if (stats && stats.keyFramesEncoded >= minimumKeyFrames) { |
| return stats; |
| } |
| await new Promise(r => t.step_timeout(r, 100)); |
| if (performance.now() > startTime + 5000) { |
| break; |
| } |
| } |
| } |
| |
| promise_test(async t => { |
| const pc1 = new RTCPeerConnection(); |
| t.add_cleanup(() => pc1.close()); |
| const pc2 = new RTCPeerConnection(); |
| t.add_cleanup(() => pc2.close()); |
| // Video must be small enough to reach a key frame of the right size immediately. |
| const stream = await getNoiseStream({video: {width: 320, height: 160}}); |
| t.add_cleanup(() => stream.getTracks().forEach(t => t.stop())); |
| |
| const sender = pc1.addTrack(stream.getTracks()[0], stream); |
| exchangeIceCandidates(pc1, pc2); |
| await exchangeOfferAnswer(pc1, pc2); |
| |
| const rid = undefined; |
| const first_stats = await waitForKeyFrameCount(t, pc1, rid, 1); |
| assert_true(!!first_stats); |
| sender.setParameters(sender.getParameters(), { |
| encodingOptions: [{keyFrame: true}], |
| }); |
| const second_stats = await waitForKeyFrameCount(t, pc1, rid, first_stats.keyFramesEncoded + 1); |
| assert_true(!!second_stats); |
| assert_greater_than(second_stats.keyFramesEncoded, first_stats.keyFramesEncoded); |
| }, `setParameters() second argument can be used to trigger keyFrame generation`); |
| |
| promise_test(async t => { |
| const pc1 = new RTCPeerConnection(); |
| t.add_cleanup(() => pc1.close()); |
| const pc2 = new RTCPeerConnection(); |
| t.add_cleanup(() => pc2.close()); |
| // Video must be small enough to reach a key frame of the right size immediately. |
| const stream = await getNoiseStream({video: {width: 640, height: 360}}); |
| t.add_cleanup(() => stream.getTracks().forEach(t => t.stop())); |
| |
| const rids = ['0', '1']; |
| const {sender} = pc1.addTransceiver(stream.getTracks()[0], { |
| streams: [stream], |
| sendEncodings: [{rid: 0}, {rid: 1}], |
| }); |
| exchangeIceCandidates(pc1, pc2); |
| await pc1.setLocalDescription(); |
| await pc2.setRemoteDescription({type: 'offer', sdp: ridToMid(pc1.localDescription, rids)}); |
| await pc2.setLocalDescription(); |
| await pc1.setRemoteDescription({type: 'answer', sdp: midToRid( |
| pc2.localDescription, |
| pc1.localDescription, |
| rids |
| )}); |
| |
| const first_stats_l0 = await waitForKeyFrameCount(t, pc1, '0', 1); |
| assert_true(!!first_stats_l0); |
| const first_stats_l1 = await waitForKeyFrameCount(t, pc1, '1', 1); |
| assert_true(!!first_stats_l1); |
| |
| // Generate a keyframe on the second layer. This may, depending on the encoder, force |
| // a key frame on the first layer as well. |
| sender.setParameters(sender.getParameters(), { |
| encodingOptions: [{keyFrame: false}, {keyFrame: true}], |
| }); |
| const second_stats_l1 = await waitForKeyFrameCount(t, pc1, '1', first_stats_l1.keyFramesEncoded + 1); |
| assert_true(!!second_stats_l1); |
| assert_greater_than(second_stats_l1.keyFramesEncoded, first_stats_l1.keyFramesEncoded); |
| |
| const second_stats_l0 = await waitForKeyFrameCount(t, pc1, '0', first_stats_l0.keyFramesEncoded); |
| assert_true(!!second_stats_l0); |
| assert_greater_than_equal(second_stats_l0.keyFramesEncoded, first_stats_l0.keyFramesEncoded); |
| }, `setParameters() second argument can be used to trigger keyFrame generation (simulcast)`); |
| </script> |
