| <!DOCTYPE html> |
| <html> |
| <head> |
| <title>RTCPeerConnection RTP payload types</title> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| </head> |
| <body> |
| <script> |
| |
| // Test that when creating an offer we do not run out of valid payload types. |
| // This uses the deprecated RTP datachannels which means an extra payload |
| // type is allocated. |
| const legacy_datachannel_constraint = { |
| optional: [{ RtpDataChannels: true }] |
| } |
| |
| promise_test(async t => { |
| const pc1 = new RTCPeerConnection(null, legacy_datachannel_constraint); |
| t.add_cleanup(() => pc1.close()); |
| |
| const offer = await pc1.createOffer({offerToReceiveAudio: true, offerToReceiveVideo: true}); |
| |
| // Extract all payload types from the m= lines. |
| const payloadTypes = offer.sdp.split('\n') |
| .map(line => line.trim()) |
| .filter(line => line.startsWith('m=')) |
| .map(line => line.split(' ').slice(3).join(' ')) |
| .join(' ') |
| .split(' ') |
| .map(payloadType => parseInt(payloadType, 10)); |
| |
| // The list of allowed payload types is taken from here |
| // https://www.iana.org/assignments/rtp-parameters/rtp-parameters.xhtml#rtp-parameters-1. |
| const forbiddenPayloadTypes = payloadTypes |
| .filter(payloadType => { |
| if (payloadType >= 96 && payloadType <= 127) { |
| return false; |
| } |
| if (payloadType >= 72 && payloadType < 96) { |
| return true; |
| } |
| if (payloadType >= 35 && payloadType < 72) { |
| return false; |
| } |
| // TODO: Check against static payload type list. |
| return false; |
| }); |
| assert_equals(forbiddenPayloadTypes.length, 0) |
| }, 'createOffer with the maximum set of codecs and RTP datachannels does not generate invalid payload types'); |
| </script> |
| </body> |
| </html> |
