gops | A tool to list and diagnose Go | Continuous Deployment library
kandi X-RAY | gops Summary
kandi X-RAY | gops Summary
gops is a command to list and diagnose Go processes currently running on your system.
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QUESTION
I'm pretty new in neo4j and I have troubles to get a well result for my query. I have the next model:
...ANSWER
Answered 2021-Feb-23 at 16:22When you aggregate the nodes, it will not remove duplicates so adding the keyword "distinct" will fix it. Instead of COLLECT(o), use COLLECT(DISTINCT o) as opponents and COLLECT(DISTINCT ops).
QUESTION
I'm trying to live stream the desktop that's captured through Desktop duplication API. H264 encoding works fine, except the fact that the Desktop duplication API delivers frames only when there is a screen change, but video encoders expect the frames to be delivered at a constant frame rate. So, I'm forced to save the previous sample to feed the encoder at a constant rate when there is no screen change triggered. This works, I could see live output at the other end.
One problem though, the encoder produces a large sample equal to the size of a fresh full-screen sample (which is probably a key-frame) at a constant rate. I have also noticed that an I frame (That large sample) is produced exactly once every 1 second (I guess, it could possibly the default GOP size) even when there is no screen change and I'm providing only the sample that I previously created and literally no diff between them except the sample time I'm setting. This is costly for a live stream, I'm not expecting the decoder to be able to seek or join the stream at the midst of the stream (At least, I have control over it), is there a way to get around this by setting a larger GOP?
I tried all the below settings, but nothing seems to be changing.
...ANSWER
Answered 2019-Nov-23 at 22:02The code snippet extracted from Chromium is the way to do it: you have to use ICodecAPI
interface.
Certified Hardware Encoder[...]
The following is the set of required and optional
ICodecAPI
properties for encoders to pass the HCK encoder certification.The following Windows 8 and Windows 8.1
ICodecAPI
properties are required:[...]
CODECAPI_AVEncMPVGOPSize
So you will have the property present in most cases.
Note that you might need to set the property before you start actual streaming.
QUESTION
I am piping frames into FFmpeg at quite a slow rate (1 per second) and I want to stream them out with very low latency.
There are not only sources (for example here and here) that don't mention that I need to set the GOP size (keyint
) to a small value, but there are even sources (like here and here) that explicitly say that I don't have to set the GOP size to a small value.
However, so far the only way I found to reduce the really long start delay is to actually reduce the GOP size to 1.
Anyway, here's my current command line:
...ANSWER
Answered 2017-Jun-10 at 04:16Adding -force_key_frames expr:eq(n,1)
will force a KF on the 2nd frame.
Since your rate is 1 fps, I would suggest an expr of lt(n,5)
. Also, the default keyint is 250
and min-keyint is 40
. So if you want to leave and rejoin the stream, it may take very long to restart. Consider reducing keyint.
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