I was investigating an issue where I was capturing an outgoing stream from
my RtspServer, and I noticed there were missing packets when I captured
using tcpdump. I increased the send buffer size using
increaseSendBufferTo, and this helped the issue.
However, I was curious as to what is the difference between
increaseSendBufferTo and setSendBufferSize? (And the appropriate
ReceiveBuffer calls)
(setSendBufferTo does not seem to be called).
On a separate point. can we set the RTSP_PARAM_STRING_MAX to something
larger than 100? I use 256, but is there any reason it cannot be PATH_MAX
(which is OS indepenedent tho I am not sure if this is defined on all
systems). I use a larger size to allow more url parameters on the streams
on my server.
Another thing I have noticed is that there are certain non conforming
devices that can change their RTP payload midstream. To handle this on my
client end I added the abilility to ignore the rtp payload type being
dynamic. I did this by not checking the payload type if the expected type
was set to zero:
--- vendor/liveMedia/MultiFramedRTPSource.cpp
+++ custom/liveMedia/MultiFramedRTPSource.cpp
@@ -263,7 +263,10 @@
bPacket->removePadding(numPaddingBytes);
}
// Check the Payload Type.
- if ((unsigned char)((rtpHdr&0x007F0000)>>16)
+ // Handle a payload type of 0
+ // Which means do not worry about the payload type
+ if (0 != source->rtpPayloadFormat() &&
+ (unsigned char)((rtpHdr&0x007F0000)>>16)
!= source->rtpPayloadFormat()) {
break;
}
Regards,
Stuart
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