| Soares Chen | 172fe9d | 2017-07-18 09:30:18 | [diff] [blame] | 1 | <!doctype html> |
| 2 | <meta charset=utf-8> |
| Soares Chen | 5c1f143 | 2017-07-27 03:19:29 | [diff] [blame] | 3 | <title>RTCRtpParameters degradationPreference</title> |
| Soares Chen | 172fe9d | 2017-07-18 09:30:18 | [diff] [blame] | 4 | <script src="/resources/testharness.js"></script> |
| 5 | <script src="/resources/testharnessreport.js"></script> |
| 6 | <script src="dictionary-helper.js"></script> |
| 7 | <script src="RTCRtpParameters-helper.js"></script> |
| 8 | <script> |
| 9 | 'use strict'; |
| 10 | |
| 11 | // Test is based on the following editor draft: |
| 12 | // https://w3c.github.io/webrtc-pc/archives/20170605/webrtc.html |
| 13 | |
| 14 | // The following helper functions are called from RTCRtpParameters-helper.js: |
| 15 | // validateSenderRtpParameters |
| 16 | |
| 17 | /* |
| 18 | 5.2. RTCRtpSender Interface |
| 19 | interface RTCRtpSender { |
| 20 | Promise<void> setParameters(optional RTCRtpParameters parameters); |
| 21 | RTCRtpParameters getParameters(); |
| 22 | }; |
| 23 | |
| 24 | dictionary RTCRtpParameters { |
| 25 | DOMString transactionId; |
| 26 | sequence<RTCRtpEncodingParameters> encodings; |
| 27 | sequence<RTCRtpHeaderExtensionParameters> headerExtensions; |
| 28 | RTCRtcpParameters rtcp; |
| 29 | sequence<RTCRtpCodecParameters> codecs; |
| 30 | RTCDegradationPreference degradationPreference; |
| 31 | }; |
| 32 | |
| 33 | enum RTCDegradationPreference { |
| 34 | "maintain-framerate", |
| 35 | "maintain-resolution", |
| 36 | "balanced" |
| 37 | }; |
| 38 | |
| 39 | - degradationPreference is set to the last value passed into setParameters, |
| 40 | or the default value of "balanced" if setParameters hasn't been called. |
| 41 | */ |
| 42 | |
| 43 | promise_test(t => { |
| 44 | const pc = new RTCPeerConnection(); |
| 45 | const { sender } = pc.addTransceiver('audio'); |
| 46 | |
| 47 | const param = sender.getParameters(); |
| 48 | validateSenderRtpParameters(param); |
| 49 | |
| Soares Chen | 5c1f143 | 2017-07-27 03:19:29 | [diff] [blame] | 50 | assert_equals(param.degradationPreference, 'balanced', |
| 51 | 'Expect initial param.degradationPreference to be balanced'); |
| Soares Chen | 172fe9d | 2017-07-18 09:30:18 | [diff] [blame] | 52 | |
| Soares Chen | 5c1f143 | 2017-07-27 03:19:29 | [diff] [blame] | 53 | param.degradationPreference = 'maintain-framerate'; |
| Soares Chen | 172fe9d | 2017-07-18 09:30:18 | [diff] [blame] | 54 | |
| 55 | return pc.setParameters(param) |
| 56 | .then(() => { |
| 57 | const param = sender.getParameters(); |
| 58 | validateSenderRtpParameters(param); |
| 59 | |
| Soares Chen | 5c1f143 | 2017-07-27 03:19:29 | [diff] [blame] | 60 | assert_equals(param.degradationPreference, 'maintain-framerate'); |
| Soares Chen | 172fe9d | 2017-07-18 09:30:18 | [diff] [blame] | 61 | }); |
| Soares Chen | 5c1f143 | 2017-07-27 03:19:29 | [diff] [blame] | 62 | }, 'setParameters with degradationPreference set should succeed'); |
| Soares Chen | 172fe9d | 2017-07-18 09:30:18 | [diff] [blame] | 63 | |
| 64 | promise_test(t => { |
| 65 | const pc = new RTCPeerConnection(); |
| 66 | const { sender } = pc.addTransceiver('audio'); |
| 67 | |
| 68 | const param = sender.getParameters(); |
| 69 | validateSenderRtpParameters(param); |
| 70 | |
| Soares Chen | 5c1f143 | 2017-07-27 03:19:29 | [diff] [blame] | 71 | assert_equals(param.degradationPreference, 'balanced', |
| 72 | 'Expect initial param.degradationPreference to be balanced'); |
| Soares Chen | 172fe9d | 2017-07-18 09:30:18 | [diff] [blame] | 73 | |
| Soares Chen | 5c1f143 | 2017-07-27 03:19:29 | [diff] [blame] | 74 | param.degradationPreference = undefined; |
| Soares Chen | 172fe9d | 2017-07-18 09:30:18 | [diff] [blame] | 75 | |
| 76 | return pc.setParameters(param) |
| 77 | .then(() => { |
| 78 | const param = sender.getParameters(); |
| 79 | validateSenderRtpParameters(param); |
| 80 | |
| Soares Chen | 5c1f143 | 2017-07-27 03:19:29 | [diff] [blame] | 81 | assert_equals(param.degradationPreference, undefined); |
| Soares Chen | 172fe9d | 2017-07-18 09:30:18 | [diff] [blame] | 82 | }); |
| Soares Chen | 5c1f143 | 2017-07-27 03:19:29 | [diff] [blame] | 83 | }, 'setParameters with degradationPreference unset should succeed'); |
| Soares Chen | 172fe9d | 2017-07-18 09:30:18 | [diff] [blame] | 84 | |
| 85 | </script> |
