protected int encode(byte[] rawData, int offSet) {
int temp = offSet;
rawData[offSet++] = ((byte) ((this.ssrc & 0xFF000000) >> 24));
rawData[offSet++] = ((byte) ((this.ssrc & 0x00FF0000) >> 16));
rawData[offSet++] = ((byte) ((this.ssrc & 0x0000FF00) >> 8));
rawData[offSet++] = ((byte) ((this.ssrc & 0x000000FF)));
for (RtcpSdesItem rtcpSdesItem : rtcpSdesItems) {
if (rtcpSdesItem != null) {
offSet = rtcpSdesItem.encode(rawData, offSet);
} else {
break;
}
}
// This is End
rawData[offSet++] = 0x00;
int remainder = (offSet - temp) % 4;
if (remainder != 0) {
int pad = 4 - remainder;
for (int i = 0; i < pad; i++) {
rawData[offSet++] = 0x00;
}
}
return offSet;
}
public String getCname() {
for (RtcpSdesItem item : this.rtcpSdesItems) {
if (RtcpSdesItem.RTCP_SDES_CNAME == item.getType()) {
return item.getText();
}
}
return "";
}
@Override
public String toString() {
StringBuilder builder = new StringBuilder("SDES CHUNK:\n");
builder.append("ssrc= ").append(this.ssrc).append(", ");
builder.append("item count= ").append(this.itemCount);
for (RtcpSdesItem item : this.rtcpSdesItems) {
builder.append("\n").append(item.toString());
}
return builder.toString();
}
protected int decode(byte[] rawData, int offSet) {
this.ssrc |= rawData[offSet++] & 0xFF;
this.ssrc <<= 8;
this.ssrc |= rawData[offSet++] & 0xFF;
this.ssrc <<= 8;
this.ssrc |= rawData[offSet++] & 0xFF;
this.ssrc <<= 8;
this.ssrc |= rawData[offSet++] & 0xFF;
while (true) {
RtcpSdesItem sdesItem = new RtcpSdesItem();
offSet = sdesItem.decode(rawData, offSet);
addRtcpSdesItem(sdesItem);
if (RtcpSdesItem.RTCP_SDES_END == sdesItem.getType()) {
break;
}
}
return offSet;
}
