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255 lines
9.2 KiB
HTML
255 lines
9.2 KiB
HTML
<!doctype html>
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<meta charset=utf-8>
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<title>RTCRtpParameters encodings</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="dictionary-helper.js"></script>
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<script src="RTCRtpParameters-helper.js"></script>
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<script>
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'use strict';
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// Test is based on the following editor draft:
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// https://w3c.github.io/webrtc-pc/archives/20170605/webrtc.html
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// The following helper functions are called from RTCRtpParameters-helper.js:
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// doOfferAnswerExchange
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// validateSenderRtpParameters
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/*
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5.1. RTCPeerConnection Interface Extensions
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partial interface RTCPeerConnection {
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RTCRtpTransceiver addTransceiver((MediaStreamTrack or DOMString) trackOrKind,
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optional RTCRtpTransceiverInit init);
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...
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};
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dictionary RTCRtpTransceiverInit {
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RTCRtpTransceiverDirection direction = "sendrecv";
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sequence<MediaStream> streams;
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sequence<RTCRtpEncodingParameters> sendEncodings;
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};
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5.2. RTCRtpSender Interface
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interface RTCRtpSender {
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Promise<void> setParameters(optional RTCRtpParameters parameters);
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RTCRtpParameters getParameters();
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};
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dictionary RTCRtpParameters {
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DOMString transactionId;
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sequence<RTCRtpEncodingParameters> encodings;
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sequence<RTCRtpHeaderExtensionParameters> headerExtensions;
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RTCRtcpParameters rtcp;
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sequence<RTCRtpCodecParameters> codecs;
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};
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dictionary RTCRtpEncodingParameters {
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boolean active;
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unsigned long maxBitrate;
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[readonly]
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DOMString rid;
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double scaleResolutionDownBy;
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};
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getParameters
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- encodings is set to the value of the [[send encodings]] internal slot.
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*/
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/*
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5.1. addTransceiver
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7. Create an RTCRtpSender with track, streams and sendEncodings and let sender
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be the result.
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5.2. create an RTCRtpSender
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5. Let sender have a [[send encodings]] internal slot, representing a list
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of RTCRtpEncodingParameters dictionaries.
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6. If sendEncodings is given as input to this algorithm, and is non-empty,
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set the [[send encodings]] slot to sendEncodings.
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Otherwise, set it to a list containing a single RTCRtpEncodingParameters
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with active set to true.
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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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const transceiver = pc.addTransceiver('audio');
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await doOfferAnswerExchange(t, pc);
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const param = transceiver.sender.getParameters();
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validateSenderRtpParameters(param);
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const { encodings } = param;
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const encoding = getFirstEncoding(param);
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assert_equals(encoding.active, true);
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}, 'addTransceiver() with undefined sendEncodings should have default encoding parameter with active set to true');
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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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const transceiver = pc.addTransceiver('audio', { sendEncodings: [] });
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await doOfferAnswerExchange(t, pc);
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const param = transceiver.sender.getParameters();
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validateSenderRtpParameters(param);
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const { encodings } = param;
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const encoding = getFirstEncoding(param);
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assert_equals(encoding.active, true);
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}, 'addTransceiver() with empty list sendEncodings should have default encoding parameter with active set to true');
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/*
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5.2. create an RTCRtpSender
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To create an RTCRtpSender with a MediaStreamTrack , track, a list of MediaStream
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objects, streams, and optionally a list of RTCRtpEncodingParameters objects,
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sendEncodings, run the following steps:
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5. Let sender have a [[send encodings]] internal slot, representing a list
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of RTCRtpEncodingParameters dictionaries.
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6. If sendEncodings is given as input to this algorithm, and is non-empty,
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set the [[send encodings]] slot to sendEncodings.
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5.2. getParameters
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- encodings is set to the value of the [[send encodings]] internal slot.
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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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const { sender } = pc.addTransceiver('video', {
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sendEncodings: [{
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active: false,
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maxBitrate: 8,
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maxFramerate: 25,
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rid: 'foo'
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}]
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});
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await doOfferAnswerExchange(t, pc);
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const param = sender.getParameters();
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validateSenderRtpParameters(param);
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const encoding = getFirstEncoding(param);
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assert_equals(encoding.active, false);
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assert_equals(encoding.maxBitrate, 8);
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assert_not_own_property(encoding, "rid", "rid should be removed with a single encoding");
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}, `sender.getParameters() should return sendEncodings set by addTransceiver()`);
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/*
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5.2. setParameters
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3. Let N be the number of RTCRtpEncodingParameters stored in sender's internal
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[[send encodings]] slot.
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7. If parameters.encodings.length is different from N, or if any parameter
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in the parameters argument, marked as a Read-only parameter, has a value
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that is different from the corresponding parameter value returned from
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sender.getParameters(), abort these steps and return a promise rejected
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with a newly created InvalidModificationError. Note that this also applies
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to transactionId.
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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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const { sender } = pc.addTransceiver('audio');
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await doOfferAnswerExchange(t, pc);
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const param = sender.getParameters();
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validateSenderRtpParameters(param);
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const { encodings } = param;
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assert_equals(encodings.length, 1);
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// {} is valid RTCRtpEncodingParameters because all fields are optional
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encodings.push({});
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assert_equals(param.encodings.length, 2);
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return promise_rejects_dom(t, 'InvalidModificationError',
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sender.setParameters(param));
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}, `sender.setParameters() with mismatch number of encodings should reject with InvalidModificationError`);
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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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const { sender } = pc.addTransceiver('audio');
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await doOfferAnswerExchange(t, pc);
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const param = sender.getParameters();
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validateSenderRtpParameters(param);
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param.encodings = undefined;
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return promise_rejects_js(t, TypeError,
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sender.setParameters(param));
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}, `sender.setParameters() with encodings unset should reject with TypeError`);
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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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const { sender } = pc.addTransceiver('video', {
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sendEncodings: [{ rid: 'foo' }, { rid: 'baz' }],
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});
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await doOfferAnswerExchange(t, pc);
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const param = sender.getParameters();
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validateSenderRtpParameters(param);
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const encoding = getFirstEncoding(param);
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assert_equals(encoding.rid, 'foo');
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encoding.rid = 'bar';
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return promise_rejects_dom(t, 'InvalidModificationError',
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sender.setParameters(param));
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}, `setParameters() with modified encoding.rid field should reject with InvalidModificationError`);
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/*
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5.2. setParameters
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8. If the scaleResolutionDownBy parameter in the parameters argument has a
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value less than 1.0, abort these steps and return a promise rejected with
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a newly created RangeError.
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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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const { sender } = pc.addTransceiver('audio');
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await doOfferAnswerExchange(t, pc);
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const param = sender.getParameters();
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validateSenderRtpParameters(param);
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const encoding = getFirstEncoding(param);
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encoding.scaleResolutionDownBy = 0.5;
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return promise_rejects_js(t, RangeError,
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sender.setParameters(param));
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}, `setParameters() with encoding.scaleResolutionDownBy field set to less than 1.0 should reject with RangeError`);
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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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const { sender } = pc.addTransceiver('video');
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await doOfferAnswerExchange(t, pc);
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const param = sender.getParameters();
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validateSenderRtpParameters(param);
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const encoding = getFirstEncoding(param);
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encoding.scaleResolutionDownBy = 1.5;
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return sender.setParameters(param)
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.then(() => {
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const param = sender.getParameters();
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validateSenderRtpParameters(param);
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const encoding = getFirstEncoding(param);
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assert_approx_equals(encoding.scaleResolutionDownBy, 1.5, 0.01);
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});
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}, `setParameters() with encoding.scaleResolutionDownBy field set to greater than 1.0 should succeed`);
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test_modified_encoding('audio', 'active', false, true,
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'setParameters() with modified encoding.active should succeed');
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test_modified_encoding('audio', 'maxBitrate', 10000, 20000,
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'setParameters() with modified encoding.maxBitrate should succeed');
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test_modified_encoding('video', 'scaleResolutionDownBy', 2, 4,
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'setParameters() with modified encoding.scaleResolutionDownBy should succeed');
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</script>
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