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https://github.com/livekit/livekit.git
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ad1f508680
* Add support for "abs-capture-time" extension. Currently, it is just passed through from publisher -> subscriber side. TODO: Need to store in sequencer and restore for retransmission. * abs-capture-time in retransmissions * clean up * fix test * more test fixes * more test fixes * more test fixes * log only when size is non-zero * log on both sides for debugging * add marshal/unmarshal * normalize abs capture time to SFU clock * comment out adding abs-capture-time from registered extensions
87 lines
3.1 KiB
Go
87 lines
3.1 KiB
Go
// Copyright 2024 LiveKit, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package buffer
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import (
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"math/rand"
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"testing"
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"github.com/stretchr/testify/require"
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dd "github.com/livekit/livekit-server/pkg/sfu/rtpextension/dependencydescriptor"
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)
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func TestFrameIntegrityChecker(t *testing.T) {
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fc := NewFrameIntegrityChecker(100, 1000)
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// first frame out of order
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fc.AddPacket(10, 10, &dd.DependencyDescriptor{})
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require.False(t, fc.FrameIntegrity(10))
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fc.AddPacket(9, 10, &dd.DependencyDescriptor{FirstPacketInFrame: true})
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require.False(t, fc.FrameIntegrity(10))
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fc.AddPacket(11, 10, &dd.DependencyDescriptor{LastPacketInFrame: true})
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require.True(t, fc.FrameIntegrity(10))
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// single packet frame
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fc.AddPacket(100, 100, &dd.DependencyDescriptor{FirstPacketInFrame: true, LastPacketInFrame: true})
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require.True(t, fc.FrameIntegrity(100))
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require.False(t, fc.FrameIntegrity(101))
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require.False(t, fc.FrameIntegrity(99))
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// frame too old than first frame
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fc.AddPacket(99, 99, &dd.DependencyDescriptor{FirstPacketInFrame: true, LastPacketInFrame: true})
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// multiple packet frame, out of order
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fc.AddPacket(2001, 2001, &dd.DependencyDescriptor{})
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require.False(t, fc.FrameIntegrity(2001))
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require.False(t, fc.FrameIntegrity(1999))
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// out of frame count(100)
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require.False(t, fc.FrameIntegrity(100))
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require.False(t, fc.FrameIntegrity(1900))
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fc.AddPacket(2000, 2001, &dd.DependencyDescriptor{FirstPacketInFrame: true})
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require.False(t, fc.FrameIntegrity(2001))
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fc.AddPacket(2002, 2001, &dd.DependencyDescriptor{LastPacketInFrame: true})
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require.True(t, fc.FrameIntegrity(2001))
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// duplicate packet
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fc.AddPacket(2001, 2001, &dd.DependencyDescriptor{})
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require.True(t, fc.FrameIntegrity(2001))
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// frame too old
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fc.AddPacket(900, 1900, &dd.DependencyDescriptor{FirstPacketInFrame: true, LastPacketInFrame: true})
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require.False(t, fc.FrameIntegrity(1900))
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for frame := uint64(2002); frame < 2102; frame++ {
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// large frame (1000 packets) out of order / retransmitted
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firstFrame := uint64(3000 + (frame-2002)*1000)
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lastFrame := uint64(3999 + (frame-2002)*1000)
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frames := make([]uint64, 0, lastFrame-firstFrame+1)
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for i := firstFrame; i <= lastFrame; i++ {
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frames = append(frames, i)
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}
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require.False(t, fc.FrameIntegrity(frame))
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rand.Seed(int64(frame))
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rand.Shuffle(len(frames), func(i, j int) { frames[i], frames[j] = frames[j], frames[i] })
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for i, f := range frames {
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fc.AddPacket(f, frame, &dd.DependencyDescriptor{
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FirstPacketInFrame: f == firstFrame,
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LastPacketInFrame: f == lastFrame,
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})
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require.Equal(t, i == len(frames)-1, fc.FrameIntegrity(frame), i)
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}
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require.True(t, fc.FrameIntegrity(frame))
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}
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}
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