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Today's Topics:
1. Re: RTSP stream and CPU utilization (prismb...@gmail.com)
2. Re: RTSP stream and CPU utilization (David Powell)
----------------------------------------------------------------------
Message: 1
Date: Fri, 23 Nov 2018 14:21:53 -0800
From: prismb...@gmail.com
To: Motion discussion list <motion-user@lists.sourceforge.net>
Subject: Re: [Motion-user] RTSP stream and CPU utilization
Message-ID:
<cagd+p+bknofcq2hlsws+p94hgcuvp_bd5_ocyp-g7x2_nde...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
I have RTSP cameras from sony and they can do both HTTP and RTSP URL's. I
suspect the comment from the manufacturer is misinformed. I would at least
try the MJPEG url...
On Fri, Nov 23, 2018 at 2:15 PM David Powell <da...@depowell.com> 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, prismb...@gmail.com 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 <da...@depowell.com> 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 <da...@depowell.com>
>> <da...@depowell.com> 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 <clan...@gmail.com>
>> <clan...@gmail.com> wrote:
>>
>> On Fri, 23 Nov 2018 at 16:43, David Powell <da...@depowell.com>
>> <da...@depowell.com> 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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>>
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>
>
>
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Message: 2
Date: Fri, 23 Nov 2018 16:33:22 -0600
From: David Powell <da...@depowell.com>
To: Motion discussion list <motion-user@lists.sourceforge.net>
Subject: Re: [Motion-user] RTSP stream and CPU utilization
Message-ID: <83e5e43e-2f11-e131-a6b3-1948bddec...@depowell.com>
Content-Type: text/plain; charset="utf-8"; Format="flowed"
Oh, believe me, I've tried it and every permutation of it I could think
of.? I'm not sure if the manufacturers are all trying to get away from
MJPEG or not, but it seems silly to me to have a network camera that you
can't view live in a stock browser.
David
On 11/23/18 4:21 PM, prismb...@gmail.com wrote:
> I have RTSP cameras from sony and they can do both HTTP and RTSP
> URL's. I suspect the comment from the manufacturer is misinformed. I
> would at least try the MJPEG url...
>
> On Fri, Nov 23, 2018 at 2:15 PM David Powell <da...@depowell.com
> <mailto:da...@depowell.com>> 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, prismb...@gmail.com
> <mailto:prismb...@gmail.com> 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 <da...@depowell.com
>> <mailto:da...@depowell.com>> 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<da...@depowell.com>
>>> <mailto:da...@depowell.com> 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<clan...@gmail.com>
>>>> <mailto:clan...@gmail.com> wrote:
>>>>
>>>> On Fri, 23 Nov 2018 at 16:43, David Powell<da...@depowell.com>
>>>> <mailto:da...@depowell.com> 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
>>>>
>>>> _______________________________________________
>>>> Motion-user mailing list
>>>> Motion-user@lists.sourceforge.net
>>>> <mailto:Motion-user@lists.sourceforge.net>
>>>> https://lists.sourceforge.net/lists/listinfo/motion-user
>>>> https://motion-project.github.io/
>>>>
>>>> Unsubscribe:https://lists.sourceforge.net/lists/options/motion-user
>>>>
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>>>>
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>>>>
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>>>>
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>>> _______________________________________________
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