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HLS converter: skip packets that are part of frames sent before initialization of the converter (#374)

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This commit is contained in:
aler9 2021-05-14 23:19:46 +02:00
parent bb995ad2fe
commit 07765f0a63
3 changed files with 25 additions and 4 deletions
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2
go.mod
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@ -5,7 +5,7 @@ go 1.15
require (
github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 // indirect
github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d // indirect
github.com/aler9/gortsplib v0.0.0-20210513074841-4ef801b9e015
github.com/aler9/gortsplib v0.0.0-20210514205337-76fab391dc85
github.com/asticode/go-astits v0.0.0-00010101000000-000000000000
github.com/davecgh/go-spew v1.1.1 // indirect
github.com/fsnotify/fsnotify v1.4.9

4
go.sum
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@ -4,8 +4,8 @@ github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d h1:UQZhZ2O0vMHr2c
github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk541a8SKzHPHnH3zbiI+7dagKZ0cgpgrD7Fyho=
github.com/aler9/go-astits v0.0.0-20210423195926-582b09ed7c04 h1:CXgQLsU4uxWAmsXNOjGLbj0A+0IlRcpZpMgI13fmVwo=
github.com/aler9/go-astits v0.0.0-20210423195926-582b09ed7c04/go.mod h1:DkOWmBNQpnr9mv24KfZjq4JawCFX1FCqjLVGvO0DygQ=
github.com/aler9/gortsplib v0.0.0-20210513074841-4ef801b9e015 h1:IivP6Fx5QipZ2fB7we4y78qJRSuHu+JLMvZyVMOviqE=
github.com/aler9/gortsplib v0.0.0-20210513074841-4ef801b9e015/go.mod h1:zVCg+TQX445hh1pC5QgAuuBvvXZMWLY1XYz626dGFqY=
github.com/aler9/gortsplib v0.0.0-20210514205337-76fab391dc85 h1:OFulQt+GaeWy+mjPspkh4OBiGpGPVK4JPWVU12wqsQ8=
github.com/aler9/gortsplib v0.0.0-20210514205337-76fab391dc85/go.mod h1:zVCg+TQX445hh1pC5QgAuuBvvXZMWLY1XYz626dGFqY=
github.com/aler9/rtmp v0.0.0-20210403095203-3be4a5535927 h1:95mXJ5fUCYpBRdSOnLAQAdJHHKxxxJrVCiaqDi965YQ=
github.com/aler9/rtmp v0.0.0-20210403095203-3be4a5535927/go.mod h1:vzuE21rowz+lT1NGsWbreIvYulgBpCGnQyeTyFblUHc=
github.com/asticode/go-astikit v0.20.0 h1:+7N+J4E4lWx2QOkRdOf6DafWJMv6O4RRfgClwQokrH8=

23
internal/hlsconverter/converter.go
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@ -17,6 +17,7 @@ import (
"github.com/aler9/gortsplib/pkg/ringbuffer"
"github.com/aler9/gortsplib/pkg/rtpaac"
"github.com/aler9/gortsplib/pkg/rtph264"
"github.com/pion/rtp"
"github.com/aler9/rtsp-simple-server/internal/h264"
"github.com/aler9/rtsp-simple-server/internal/logger"
@ -337,6 +338,7 @@ func (c *Converter) runInner(innerCtx context.Context) error {
startPCR := time.Now()
var videoBuf [][]byte
videoDTSEst := h264.NewDTSEstimator()
videoInitialized := false
audioAUCount := 0
for {
@ -347,7 +349,26 @@ func (c *Converter) runInner(innerCtx context.Context) error {
pair := data.(trackIDPayloadPair)
if videoTrack != nil && pair.trackID == videoTrack.ID {
nalus, pts, err := h264Decoder.Decode(pair.buf)
var pkt rtp.Packet
err := pkt.Unmarshal(pair.buf)
if err != nil {
c.log(logger.Warn, "unable to decode RTP packet: %v", err)
continue
}
// skip packets that are part of frames sent before
// the initialization of the converter
if !videoInitialized {
typ := pkt.Payload[0] & 0x1F
start := pkt.Payload[1] >> 7
if typ == 28 && start != 1 { // FU-A
continue
}
videoInitialized = true
}
nalus, pts, err := h264Decoder.DecodeRTP(&pkt)
if err != nil {
if err != rtph264.ErrMorePacketsNeeded {
c.log(logger.Warn, "unable to decode video track: %v", err)