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//go:build !js
// +build !js
package webrtc
import (
"strings"
"testing"
"github.com/stretchr/testify/assert"
)
func Test_RTPTransceiver_SetCodecPreferences(t *testing.T) {
me := &MediaEngine{}
api := NewAPI(WithMediaEngine(me))
assert.NoError(t, me.RegisterDefaultCodecs())
me.pushCodecs(me.videoCodecs, RTPCodecTypeVideo)
me.pushCodecs(me.audioCodecs, RTPCodecTypeAudio)
tr := RTPTransceiver{kind: RTPCodecTypeVideo, api: api, codecs: me.videoCodecs}
assert.EqualValues(t, me.videoCodecs, tr.getCodecs())
failTestCases := [][]RTPCodecParameters{
{
{
RTPCodecCapability: RTPCodecCapability{MimeTypeOpus, 48000, 2, "minptime=10;useinbandfec=1", nil},
PayloadType: 111,
},
},
{
{
RTPCodecCapability: RTPCodecCapability{MimeTypeVP8, 90000, 0, "", nil},
PayloadType: 96,
},
{
RTPCodecCapability: RTPCodecCapability{MimeTypeOpus, 48000, 2, "minptime=10;useinbandfec=1", nil},
PayloadType: 111,
},
},
}
for _, testCase := range failTestCases {
assert.ErrorIs(t, tr.SetCodecPreferences(testCase), errRTPTransceiverCodecUnsupported)
}
successTestCases := [][]RTPCodecParameters{
{
{
RTPCodecCapability: RTPCodecCapability{MimeTypeVP8, 90000, 0, "", nil},
PayloadType: 96,
},
},
{
{
RTPCodecCapability: RTPCodecCapability{MimeTypeVP8, 90000, 0, "", nil},
PayloadType: 96,
},
{
RTPCodecCapability: RTPCodecCapability{"video/rtx", 90000, 0, "apt=96", nil},
PayloadType: 97,
},
{
RTPCodecCapability: RTPCodecCapability{MimeTypeVP9, 90000, 0, "profile-id=0", nil},
PayloadType: 98,
},
{
RTPCodecCapability: RTPCodecCapability{"video/rtx", 90000, 0, "apt=98", nil},
PayloadType: 99,
},
},
}
for _, testCase := range successTestCases {
assert.NoError(t, tr.SetCodecPreferences(testCase))
}
assert.NoError(t, tr.SetCodecPreferences(nil))
assert.NotEqual(t, 0, len(tr.getCodecs()))
assert.NoError(t, tr.SetCodecPreferences([]RTPCodecParameters{}))
assert.NotEqual(t, 0, len(tr.getCodecs()))
}
// Assert that SetCodecPreferences properly filters codecs and PayloadTypes are respected
func Test_RTPTransceiver_SetCodecPreferences_PayloadType(t *testing.T) {
testCodec := RTPCodecParameters{
RTPCodecCapability: RTPCodecCapability{"video/testCodec", 90000, 0, "", nil},
PayloadType: 50,
}
m := &MediaEngine{}
assert.NoError(t, m.RegisterDefaultCodecs())
offerPC, err := NewAPI(WithMediaEngine(m)).NewPeerConnection(Configuration{})
assert.NoError(t, err)
assert.NoError(t, m.RegisterCodec(testCodec, RTPCodecTypeVideo))
answerPC, err := NewAPI(WithMediaEngine(m)).NewPeerConnection(Configuration{})
assert.NoError(t, err)
_, err = offerPC.AddTransceiverFromKind(RTPCodecTypeVideo)
assert.NoError(t, err)
answerTransceiver, err := answerPC.AddTransceiverFromKind(RTPCodecTypeVideo)
assert.NoError(t, err)
assert.NoError(t, answerTransceiver.SetCodecPreferences([]RTPCodecParameters{
testCodec,
{
RTPCodecCapability: RTPCodecCapability{MimeTypeVP8, 90000, 0, "", nil},
PayloadType: 51,
},
}))
offer, err := offerPC.CreateOffer(nil)
assert.NoError(t, err)
assert.NoError(t, offerPC.SetLocalDescription(offer))
assert.NoError(t, answerPC.SetRemoteDescription(offer))
answer, err := answerPC.CreateAnswer(nil)
assert.NoError(t, err)
// VP8 with proper PayloadType
assert.NotEqual(t, -1, strings.Index(answer.SDP, "a=rtpmap:51 VP8/90000"))
// testCodec is ignored since offerer doesn't support
assert.Equal(t, -1, strings.Index(answer.SDP, "testCodec"))
closePairNow(t, offerPC, answerPC)
}
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