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acbd4ea104
* Handle cases of long mute/rollover of time stamp. There are cases where the track is muted for long enough for timestamp roll over to happen. There are no packets in that window (typically there should be black frames (for video) or silence (for audio)). But, maybe the pause based implementation of mute is causing this. Anyhow, use time since last packet to gauge how much roll over should have happened and use that to update time stamp. There will be really edge cases where this could also fail (for e. g. packet time is affected by propagation delay, so it could theoretically happen that mute/unmute + packet reception could happen exactly around that rollover point and miscalculate, but should be rare). As this happen per packet on receive side, changing time to `UnixNano()` to make it more efficient to check this. * spelling * tests * test util * tests
104 lines
2.6 KiB
Go
104 lines
2.6 KiB
Go
// Copyright 2023 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 testutils
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import (
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"time"
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"github.com/pion/rtp"
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"github.com/pion/webrtc/v3"
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"github.com/livekit/livekit-server/pkg/sfu/buffer"
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)
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// -----------------------------------------------------------
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type TestExtPacketParams struct {
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SetMarker bool
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IsKeyFrame bool
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PayloadType uint8
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SequenceNumber uint16
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SNCycles int
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Timestamp uint32
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TSCycles int
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SSRC uint32
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PayloadSize int
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PaddingSize byte
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ArrivalTime time.Time
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VideoLayer buffer.VideoLayer
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}
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// -----------------------------------------------------------
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func GetTestExtPacket(params *TestExtPacketParams) (*buffer.ExtPacket, error) {
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packet := rtp.Packet{
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Header: rtp.Header{
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Version: 2,
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Padding: params.PaddingSize != 0,
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Marker: params.SetMarker,
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PayloadType: params.PayloadType,
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SequenceNumber: params.SequenceNumber,
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Timestamp: params.Timestamp,
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SSRC: params.SSRC,
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},
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Payload: make([]byte, params.PayloadSize),
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PaddingSize: params.PaddingSize,
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}
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raw, err := packet.Marshal()
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if err != nil {
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return nil, err
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}
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ep := &buffer.ExtPacket{
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VideoLayer: params.VideoLayer,
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ExtSequenceNumber: uint64(params.SNCycles<<16) + uint64(params.SequenceNumber),
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ExtTimestamp: uint64(params.TSCycles<<32) + uint64(params.Timestamp),
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Arrival: params.ArrivalTime.UnixNano(),
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Packet: &packet,
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KeyFrame: params.IsKeyFrame,
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RawPacket: raw,
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}
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return ep, nil
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}
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// --------------------------------------
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func GetTestExtPacketVP8(params *TestExtPacketParams, vp8 *buffer.VP8) (*buffer.ExtPacket, error) {
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ep, err := GetTestExtPacket(params)
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if err != nil {
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return nil, err
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}
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ep.KeyFrame = vp8.IsKeyFrame
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ep.Payload = *vp8
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return ep, nil
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}
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// --------------------------------------
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var TestVP8Codec = webrtc.RTPCodecCapability{
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MimeType: "video/vp8",
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ClockRate: 90000,
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}
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var TestOpusCodec = webrtc.RTPCodecCapability{
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MimeType: "audio/opus",
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ClockRate: 48000,
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}
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// --------------------------------------
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