50 lines
1.8 KiB
HTML
50 lines
1.8 KiB
HTML
<!doctype html>
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<meta charset=utf-8>
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<meta name="timeout" content="long">
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<title>RTCPeerConnection Codecs in subsequent offer</title>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="../third_party/sdp/sdp.js"></script>
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<script>
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'use strict';
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// A test for https://www.rfc-editor.org/rfc/rfc8829.html#name-subsequent-offers
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// The "m=" line and corresponding "a=rtpmap" and "a=fmtp" lines MUST only include
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// media formats that have not been excluded by the codec preferences of the
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// associated transceiver and also MUST include all currently available formats.
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// A VP8-only offer.
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const sdp = `v=0
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o=- 0 3 IN IP4 127.0.0.1
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s=-
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t=0 0
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a=fingerprint:sha-256 A7:24:72:CA:6E:02:55:39:BA:66:DF:6E:CC:4C:D8:B0:1A:BF:1A:56:65:7D:F4:03:AD:7E:77:43:2A:29:EC:93
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m=video 9 RTP/SAVPF 100
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c=IN IP4 0.0.0.0
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a=rtcp-mux
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a=sendrecv
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a=mid:video
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a=rtpmap:100 VP8/90000
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a=setup:actpass
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a=ice-ufrag:ETEn
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a=ice-pwd:OtSK0WpNtpUjkY4+86js7Z/l
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`;
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promise_test(async t => {
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const pc = new RTCPeerConnection();
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t.add_cleanup(() => pc.close());
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await pc.setRemoteDescription({type: 'offer', sdp});
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await pc.setLocalDescription();
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const transceiver = pc.getTransceivers()[0];
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assert_not_equals(transceiver.stopped, true);
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const offer = await pc.createOffer();
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const mediaSection = SDPUtils.getMediaSections(offer.sdp)[0];
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const rtpParameters = SDPUtils.parseRtpParameters(mediaSection);
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const vp8 = rtpParameters.codecs.filter(codec => codec.name === 'VP8');
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const h264 = rtpParameters.codecs.filter(codec => codec.name === 'H264');
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assert_greater_than(vp8.length, 0);
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assert_greater_than(h264.length, 0);
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}, 'A subsequent offer after a VP8-only negotiation includes at least all mandatory to implement codecs');
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</script>
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