Oops! Typo here…
#2 should read …
Do I need to also modify the
increaseSendBufferTo
and
sysctl net.core.wmem_max = the_maximum_buffer_size_that_you_need
as well to match the receivebuffer ?
From: Shyam Kaundinya <[email protected]>
Date: Tuesday, August 28, 2018 at 8:07 AM
To: "[email protected]" <[email protected]>
Subject: High bit-rate (CBR) 4K streaming over a wireless link ...
Hi
My product involves streaming high bit rate (>15M) 4K video over a high-bit
rate wireless link. I use LIVE555 proxy server on both sides. Based on
reviewing the forum articles, I have made the following changes, to accommodate
the high bit rate and an unreliable link.
1. I replaced all occurances of
increaseReceiveBufferTo
and
sysctl net.core.rmem_max = the_maximum_buffer_size_that_you_need
with a large size value.
Re: the_maximum_buffer_size_that_you_need
What’s a good value to use here for 4K CBR at high-bit rate (>15M) ? 4K max
uncompressed size is = 4096*2160*3=26,542,080. That seems somewhat excessive. I
am not sure if using any other value would just be totally arbitrary. Is there
a guaranteed minimum compression that a H.265 encoder can guarantee
irrespective of what the scene is ? If so, I can arrive at my buffer size based
on that information.
1. Do I need to also modify the
increaseSendBufferTo
and
sysctl net.core.rmem_max = the_maximum_buffer_size_that_you_need
as well to match the receivebuffer ?
1. At times I see significant latency on the Rx side. But when I disconnect
and reconnect the client, it seems to go away. If I leave it running, the
virtual memory used by live keeps on increasing steadily and then live crashes
and exits. Any thoughts on what could cause this behavior ?
Regards
Shyam
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