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Diffstat (limited to 'testing/web-platform/tests/webrtc/protocol/simulcast-answer.html')
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diff --git a/testing/web-platform/tests/webrtc/protocol/simulcast-answer.html b/testing/web-platform/tests/webrtc/protocol/simulcast-answer.html new file mode 100644 index 0000000000..5e19bc08ff --- /dev/null +++ b/testing/web-platform/tests/webrtc/protocol/simulcast-answer.html @@ -0,0 +1,101 @@ +<!doctype html> +<meta charset=utf-8> +<title>RTCPeerConnection Simulcast Answer</title> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script> +'use strict'; + +const offer_sdp = `v=0 +o=- 3840232462471583827 2 IN IP4 127.0.0.1 +s=- +t=0 0 +a=group:BUNDLE 0 +a=msid-semantic: WMS +m=video 9 UDP/TLS/RTP/SAVPF 96 +c=IN IP4 0.0.0.0 +a=rtcp:9 IN IP4 0.0.0.0 +a=ice-ufrag:Li6+ +a=ice-pwd:3C05CTZBRQVmGCAq7hVasHlT +a=ice-options:trickle +a=fingerprint:sha-256 5B:D3:8E:66:0E:7D:D3:F3:8E:E6:80:28:19:FC:55:AD:58:5D:B9:3D:A8:DE:45:4A:E7:87:02:F8:3C:0B:3B:B3 +a=setup:actpass +a=mid:0 +a=extmap:4 urn:ietf:params:rtp-hdrext:sdes:rtp-stream-id +a=recvonly +a=rtcp-mux +a=rtpmap:96 VP8/90000 +a=rtcp-fb:96 goog-remb +a=rtcp-fb:96 transport-cc +a=rtcp-fb:96 ccm fir +a=rid:foo recv +a=rid:bar recv +a=rid:baz recv +a=simulcast:recv foo;bar;baz +`; +// Tests for the construction of answers with simulcast according to: +// draft-ietf-mmusic-sdp-simulcast-13 +// draft-ietf-mmusic-rid-15 +promise_test(async t => { + const pc = new RTCPeerConnection(); + t.add_cleanup(() => pc.close()); + const expected_rids = ['foo', 'bar', 'baz']; + + await pc.setRemoteDescription({type: 'offer', sdp: offer_sdp}); + const transceiver = pc.getTransceivers()[0]; + // The created transceiver should be in "recvonly" state. Allow it to send. + transceiver.direction = 'sendonly'; + const answer = await pc.createAnswer(); + const answer_lines = answer.sdp.split('\r\n'); + // Check for a RID line for each layer. + for (const rid of expected_rids) { + const result = answer_lines.find(line => line.startsWith(`a=rid:${rid}`)); + assert_not_equals(result, undefined, `RID attribute for '${rid}' missing.`); + } + + // Check for simulcast attribute with send direction and all RIDs. + const result = answer_lines.find( + line => line.startsWith(`a=simulcast:send ${expected_rids.join(';')}`)); + assert_not_equals(result, undefined, 'Could not find simulcast attribute.'); +}, 'createAnswer() with multiple send encodings should create simulcast answer'); + +promise_test(async t => { + const pc = new RTCPeerConnection(); + t.add_cleanup(() => pc.close()); + const expected_rids = ['foo', 'bar', 'baz']; + + // Try to disable the `bar` encoding in a=simulcast by prefixing it with the + // `~` character. + await pc.setRemoteDescription({type: 'offer', sdp: offer_sdp.replace(/(a=simulcast:.*)bar/, '$1~bar')}); + const transceiver = pc.getTransceivers()[0]; + transceiver.direction = 'sendonly'; + await pc.setLocalDescription(); + + const parameters = pc.getSenders()[0].getParameters(); + const barEncoding = parameters.encodings.find(encoding => encoding.rid === 'bar'); + assert_not_equals(barEncoding, undefined); + assert_not_equals(barEncoding.active, false); +}, 'Using the ~rid SDP syntax in a remote offer does not control the local encodings active flag'); + +promise_test(async t => { + const pc = new RTCPeerConnection(); + t.add_cleanup(() => pc.close()); + const expected_rids = ['foo', 'bar', 'baz']; + + await pc.setRemoteDescription({type: 'offer', sdp: offer_sdp}); + const transceiver = pc.getTransceivers()[0]; + transceiver.direction = 'sendonly'; + await pc.setLocalDescription(); + + // Disabling the encoding should not change the rid to ~rid. + const parameters = pc.getSenders()[0].getParameters(); + parameters.encodings.forEach(e => e.active = false); + await pc.getSenders()[0].setParameters(parameters); + const offer = await pc.createOffer(); + + const offer_lines = offer.sdp.split('\r\n'); + const result = offer_lines.find( + line => line.startsWith(`a=simulcast:send ${expected_rids.join(';')}`)); + assert_not_equals(result, undefined, 'Could not find simulcast attribute.'); +}, 'Disabling encodings locally does not change the SDP'); +</script> |