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Today's Topics:
1. Re: RTSP stream and CPU utilization (David Powell)
----------------------------------------------------------------------
Message: 1
Date: Fri, 23 Nov 2018 18:20:31 -0600
From: David Powell <[email protected]>
To: Motion discussion list <[email protected]>,
[email protected]
Subject: Re: [Motion-user] RTSP stream and CPU utilization
Message-ID: <[email protected]>
Content-Type: text/plain; charset="utf-8"; Format="flowed"
Yes, I did. I also tried it without a userid and password.? Oddly
enough, I have the RTSP stream URL in the motion camera config file
without a userid and password and it works fine.
David
On 11/23/18 5:16 PM, [email protected] wrote:
> I'm assuming that the password "instar" is not the one you used and
> that you would have changed the password to your own value.
>
> On Fri, Nov 23, 2018 at 3:08 PM David Powell <[email protected]
> <mailto:[email protected]>> wrote:
>
> Actually, it will also do the single snapshot as well.
>
> On 11/23/18 4:14 PM, David Powell wrote:
>>
>> Yea, I saw that. I don't know where he came up with those, but I
>> contacted the manufacturer and they said RTSP was all it would do.
>>
>> David
>>
>> On 11/23/18 2:10 PM, [email protected]
>> <mailto:[email protected]> wrote:
>>> A person on Amazon listed these URL's as usable for the camera:
>>>
>>> rtsp : / / admin:instar@IP-Address:RTSP-Port/11 - VLC Stream
>>>
>>> http : / / admin:instar@IP-Address:Port/iphone/11 - Quicktime Stream
>>>
>>> http :/ / IP-Address:Port/tmpfs/snap.jpg?usr=admin&pwd=instar -
>>> Snapshot (720p / 1280x720 Pixel)
>>>
>>> http : / / IP-Address:Port/tmpfs/auto.jpg?usr=admin&pwd=instar -
>>> Snapshot (352p or 176p)
>>>
>>> http : / /
>>>
>>> IP-Address:Port/cgi-bin/hi3510/mjpegstream.cgi?-chn=11&-usr=admin&-pwd=instar
>>> - MJPEG Stream
>>>
>>>
>>> On Fri, Nov 23, 2018 at 11:48 AM David Powell
>>> <[email protected] <mailto:[email protected]>> wrote:
>>>
>>> Thanks for the insight.? And thanks to Harlan for the tip on
>>> /mediainfo/ - that's going to come in handy.
>>>
>>> I looked at the settings on the camera and the frame rate
>>> was set to 30 fps.? Also, the media profile was set to
>>> highprofile.? I changed the frame rate to 15 and the profile
>>> to "baseline". None of that lowered the CPU utilization.
>>>
>>> That camera actually has two streams, a primary and a
>>> secondary. The secondary has a 640x352 resolution.? I set it
>>> to 15 fps and switched to that stream, and it did make a big
>>> difference; brought it down to about 125%. The picture is
>>> not as good of course, but I think I can live with that.
>>>
>>> Still, 125% is 2.5x the other three cameras combined, plus
>>> overhead.? It seems to me that I should still be able to do
>>> /something/ to bring it down under 100%.? I can't believe
>>> that an RTSP stream takes that much more computational
>>> power. I want to add 4 more similar cameras once I figure
>>> this out.? This is the one that I'm playing with:
>>>
>>>
>>> https://www.amazon.com/Security-Surveillance-Detection-Waterproof-4sdot/dp/B073TSN6YD/ref=sr_1_4
>>>
>>> If you know of any similarly-priced cameras that support
>>> MJPEG I'd like a pointer to them!
>>>
>>> David
>>>
>>>
>>>
>>> On 11/23/18 11:26 AM, Colin Law wrote:
>>>> On Fri, 23 Nov 2018 at 17:13, David Powell<[email protected]>
>>>> <mailto:[email protected]> wrote:
>>>>> The resolution of the MJPEG ones are all 640x480. The RTSP one
>>>>> is 720p.
>>>>>
>>>>> I have framerate set to 15 in motion.conf. The individual camera
>>>>> config files do not have that setting.
>>>> The MJPEG cameras are 307200 pixels, the RTSP is 921600 which is
>>>> equivalent to all the others put together. Also the RTSP is
>>>> probably
>>>> providing the data at 25 or 30 frames/sec and the processor has to
>>>> decode all of those even though you only want 15/sec in motion
>>>> Mjpeg
>>>> is a sequence of individual pictures so unwanted ones can just be
>>>> thrown away. So yes, there is a lot more processing to be done for
>>>> the RTSP camera before it even gets as far as motion. You may be
>>>> able
>>>> to slow down the frame rate in the camera, and also possibly the
>>>> resolution if you don't need it all.
>>>>
>>>>> David
>>>>>
>>>>> On 11/23/18 10:54 AM, Colin Law wrote:
>>>>>
>>>>> On Fri, 23 Nov 2018 at 16:53, Colin Law<[email protected]>
>>>>> <mailto:[email protected]> wrote:
>>>>>
>>>>> On Fri, 23 Nov 2018 at 16:43, David Powell<[email protected]>
>>>>> <mailto:[email protected]> wrote:
>>>>>
>>>>> I have 3 IP cameras configured in Motion running on a Raspberry
>>>>> Pi (Ubuntu). These cameras all use MJPEG streams and the CPU utilization
>>>>> on the Pi hovers around 50%.
>>>>>
>>>>> I added another camera which doesn't support MJPEG, but does
>>>>> support RTSP. Adding this one RTSP camera ran the CPU utilization up to
>>>>> around 200% (I believe this Pi has a quad-core CPU). Is this typical for
>>>>> RTSP? Is there any way to reduce the load for this protocol? I want to
>>>>> add several more cameras but cheap wireless outdoor IP cameras that
>>>>> support MJPEG seem to be hard to come by nowadays.
>>>>>
>>>>> What is the resolution of the mjpeg cameras and what is the rtsp
>>>>> one?
>>>>>
>>>>> Also what is frame rate of both?
>>>>>
>>>>> Colin
>>>>>
>>>>> David
>>>>>
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>>>>>
>>>>>
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