Why is it that I set the size of rcvbuf but the actual m_pRcvBuffer->capacity() size doesn't change it is always 25599

[yuchengmao]

[ethouris]

Do you check the result of srt_setsockopt/srt_setsockflag?

[maxsharabayko]

You probably want getAvailSize(). Capacity is capacity, it does not change.

[ethouris]

Ok, to clear things up about the terminology: "Capacity" is the total size of the memory allocated by the buffer, and it encloses the used and unused space. Used space in the buffer is "size" and unused - "avail".

[yuchengmao]

I found that it seems to be limited by this parameter (SRTO_FC) to the rcvbuf max value

[yuchengmao]

[yuchengmao]

Since I set the latency very large, it took a long time to release the packets in the buffer, so the rcvbuf was not enough

[ethouris]

Latency doesn't influence the buffer capacity. If it too small in particular circumstances, it should be adjusted. Whether it is, it depends not only on latency, but also bitrate, for which there is no corresponding option in SRT.

[maxsharabayko]

Please refer to the Configuration Guidelines.
See also #700.