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解析 RTP 包时,将 RTP 的扩展部分解析出来

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kunmeng
2025-01-24 11:46:13 +08:00
parent dc22c36964
commit bcb44378a5
2 changed files with 19 additions and 3 deletions
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18
format/rtspv2/demuxer.go
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@@ -35,6 +35,8 @@ func (client *RTSPClient) RTPDemuxer(payloadRAW *[]byte) ([]*av.Packet, bool) {
if client.end-client.offset >= 4*CSRCCnt {
client.offset += 4 * CSRCCnt
}
extensionStart := 0
extensionEnd := 0
if extension && len(content) < 4+client.offset+2+2 {
return nil, false
}
@@ -42,6 +44,8 @@ func (client *RTSPClient) RTPDemuxer(payloadRAW *[]byte) ([]*av.Packet, bool) {
extLen := 4 * int(binary.BigEndian.Uint16(content[4+client.offset+2:]))
client.offset += 4
if client.end-client.offset >= extLen {
extensionStart = client.offset
extensionEnd = client.offset + extLen
client.offset += extLen
}
}
@@ -58,9 +62,19 @@ func (client *RTSPClient) RTPDemuxer(payloadRAW *[]byte) ([]*av.Packet, bool) {
switch int(content[1]) {
case client.videoID:
return client.handleVideo(content)
pck, ok := client.handleVideo(content)
for _, p := range pck {
p.Extension = extension
p.Extensions = content[extensionStart+4 : extensionEnd+4]
}
return pck, ok
case client.audioID:
return client.handleAudio(content)
pck, ok := client.handleAudio(content)
for _, p := range pck {
p.Extension = extension
p.Extensions = content[extensionStart+4 : extensionEnd+4]
}
return pck, ok
}
return nil, false
}