Chelsio Communications Chelsio T5 Betriebsanweisung PDF herunterladen (Seite 209)

100

101

Chapter XIV. UDP Segmentation Offload and Pacing

Chelsio T5/T4 Unified Wire For Linux Page 209

Here:

 sockfd : The file descriptor of the UDP socket

 &fs / &cl : Pointer to the framesize and class variables

 sizeof(fs) / sizeof(cl) : The size of the variables

v. Now, compile the application.

4.1.1. UDP offload functionality for RTP data

In case of RTP data, the video server application sends the initial sequence number and the

RTP payload. The USO engine segments the payload data, increments the sequence number

and sends out the data.

In order to use the UDP offload functionality for RTP data, make the following additions to the

steps mentioned above:

1. In step (ii), declare and initialize a new variable in the application:

int rtp_header_size=16;

Here, rtp_header_size is the RTP header size in bytes that the application sends.

2. In step (iii), define a new macro, UDP_RTPHEADERLEN used for setting RTP header

length with the value 292.

# define UDP_RTPHEADERLEN 292

3. In step (iv), define a new socket option:

setsockopt (sockfd,17,UDP_RTPHEADERLEN,&rtp_header_size,

sizeof(rtp_header_size));

Here,

 &rtp_header_size : pointer to the RTP header length variable

 sizeof(rtp_header_size) : the size of the RTP header length variable

1 2 ... 204 205 206 207 208 209 210 211 212 213 214 ... 459 460

Kommentare zu diesen Handbüchern

Keine Kommentare

Chelsio Communications Chelsio T5 Betriebsanweisung Seite 209

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Software Chelsio Communications Chelsio T5