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Today's Topics:
1. Re: RTSP stream and CPU utilization (David Powell)
----------------------------------------------------------------------
Message: 1
Date: Sat, 24 Nov 2018 11:09:47 -0600
From: David Powell <[email protected]>
To: Motion discussion list <[email protected]>
Subject: Re: [Motion-user] RTSP stream and CPU utilization
Message-ID: <[email protected]>
Content-Type: text/plain; charset="utf-8"; Format="flowed"
That's a good idea, I hadn't thought to check that.
Just did, and can't find any firmware on their web site, old or new.
Must be a really new company - the /FAQ/ and /service/ pages are both empty.
David
On 11/24/18 9:09 AM, [email protected] wrote:
>
> The camera's firmware is up to date?
>
> On Fri, Nov 23, 2018 at 4:20 PM David Powell <[email protected]
> <mailto:[email protected]>> wrote:
>
> 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]
> <mailto:[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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