Alessandro Ros
2 years ago
committed by
GitHub
17 changed files with 49 additions and 271 deletions
@ -1,112 +0,0 @@
@@ -1,112 +0,0 @@
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package formatprocessor |
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import ( |
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"fmt" |
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"time" |
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"github.com/bluenviron/gortsplib/v4/pkg/format" |
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"github.com/bluenviron/gortsplib/v4/pkg/format/rtpmpeg4audiolatm" |
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"github.com/pion/rtp" |
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"github.com/bluenviron/mediamtx/internal/unit" |
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) |
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type formatProcessorMPEG4AudioLATM struct { |
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udpMaxPayloadSize int |
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format *format.MPEG4AudioLATM |
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encoder *rtpmpeg4audiolatm.Encoder |
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decoder *rtpmpeg4audiolatm.Decoder |
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} |
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func newMPEG4AudioLATM( |
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udpMaxPayloadSize int, |
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forma *format.MPEG4AudioLATM, |
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generateRTPPackets bool, |
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) (*formatProcessorMPEG4AudioLATM, error) { |
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t := &formatProcessorMPEG4AudioLATM{ |
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udpMaxPayloadSize: udpMaxPayloadSize, |
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format: forma, |
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} |
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if generateRTPPackets { |
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err := t.createEncoder() |
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if err != nil { |
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return nil, err |
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} |
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} |
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return t, nil |
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} |
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func (t *formatProcessorMPEG4AudioLATM) createEncoder() error { |
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t.encoder = &rtpmpeg4audiolatm.Encoder{ |
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PayloadType: t.format.PayloadTyp, |
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} |
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return t.encoder.Init() |
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} |
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func (t *formatProcessorMPEG4AudioLATM) ProcessUnit(uu unit.Unit) error { //nolint:dupl
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u := uu.(*unit.MPEG4AudioLATM) |
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pkts, err := t.encoder.Encode(u.AU) |
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if err != nil { |
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return err |
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} |
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ts := uint32(multiplyAndDivide(u.PTS, time.Duration(t.format.ClockRate()), time.Second)) |
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for _, pkt := range pkts { |
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pkt.Timestamp += ts |
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} |
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u.RTPPackets = pkts |
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return nil |
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} |
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func (t *formatProcessorMPEG4AudioLATM) ProcessRTPPacket( //nolint:dupl
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pkt *rtp.Packet, |
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ntp time.Time, |
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pts time.Duration, |
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hasNonRTSPReaders bool, |
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) (Unit, error) { |
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u := &unit.MPEG4AudioLATM{ |
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Base: unit.Base{ |
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RTPPackets: []*rtp.Packet{pkt}, |
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NTP: ntp, |
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PTS: pts, |
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}, |
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} |
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// remove padding
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pkt.Header.Padding = false |
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pkt.PaddingSize = 0 |
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if pkt.MarshalSize() > t.udpMaxPayloadSize { |
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return nil, fmt.Errorf("payload size (%d) is greater than maximum allowed (%d)", |
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pkt.MarshalSize(), t.udpMaxPayloadSize) |
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} |
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// decode from RTP
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if hasNonRTSPReaders || t.decoder != nil { |
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if t.decoder == nil { |
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var err error |
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t.decoder, err = t.format.CreateDecoder() |
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if err != nil { |
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return nil, err |
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} |
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} |
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au, err := t.decoder.Decode(pkt) |
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if err != nil { |
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if err == rtpmpeg4audiolatm.ErrMorePacketsNeeded { |
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return u, nil |
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} |
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return nil, err |
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} |
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u.AU = au |
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} |
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// route packet as is
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return u, nil |
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} |
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@ -0,0 +1,7 @@
@@ -0,0 +1,7 @@
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package unit |
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// MPEG4Audio is a MPEG-4 Audio data unit.
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type MPEG4Audio struct { |
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Base |
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AUs [][]byte |
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} |
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@ -1,7 +0,0 @@
@@ -1,7 +0,0 @@
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package unit |
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// MPEG4AudioGeneric is a MPEG-4 Audio data unit.
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type MPEG4AudioGeneric struct { |
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Base |
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AUs [][]byte |
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} |
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