解析 RTP 包时,将 RTP 的扩展部分解析出来

av/av.go

@@ -191,7 +191,7 @@ const avCodecTypeMagic = 233333
 // CodecData is some important bytes for initializing audio/video decoder,
 // can be converted to VideoCodecData or AudioCodecData using:
 //
-//     codecdata.(AudioCodecData) or codecdata.(VideoCodecData)
+//	codecdata.(AudioCodecData) or codecdata.(VideoCodecData)
 //
 // for H264, CodecData is AVCDecoderConfigure bytes, includes SPS/PPS.
 type CodecData interface {
@@ -255,6 +255,8 @@ type Packet struct {
 	Time            time.Duration // packet decode time
 	Duration        time.Duration //packet duration
 	Data            []byte        // packet data
+	Extension       bool
+	Extensions      []byte
 }
 
 // Raw audio frame.