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On 2017-02-07 12:31:17, blackzeros wrote:
i also thought it's not for smartphones but it's for them actually.
http://www.sony.net/SonyInfo/News/Press/201702/17-013E/index.html
"Because high-speed shooting data is stored on the DRAM and output at a normal speed, a conventional ISP can be used."
and looks like even if isp doesnt support it it doesnt matter, at least for slow motion...
fhd @ 1000 fps and even
4k@240 fps slow motion can be possible...
It's true, but it all relates to the encoder part, can it cope with such speed or not...
If not, then the phone will only be able to record for few seconds ( as the DRAM will fill up ), and maybe the smartphone might try to use the system RAM also to help. then the ISP will have a hardwork encoding everything...
For example Snapdragon SoC encoder can handle
1080@60fps... that's 16.67 times slower than
1080@1kfps
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Posted: 2017-02-07 14:08:30
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On 2017-02-07 14:08:30, Xajel wrote:
On 2017-02-07 12:31:17, blackzeros wrote:
i also thought it's not for smartphones but it's for them actually.
http://www.sony.net/SonyInfo/News/Press/201702/17-013E/index.html
"Because high-speed shooting data is stored on the DRAM and output at a normal speed, a conventional ISP can be used."
and looks like even if isp doesnt support it it doesnt matter, at least for slow motion...
fhd @ 1000 fps and even
4k@240 fps slow motion can be possible...
It's true, but it all relates to the encoder part, can it cope with such speed or not...
If not, then the phone will only be able to record for few seconds ( as the DRAM will fill up ), and maybe the smartphone might try to use the system RAM also to help. then the ISP will have a hardwork encoding everything...
For example Snapdragon SoC encoder can handle
1080@60fps... that's 16.67 times slower than
1080@1kfps
dram capacity is 1Gigabit according to specs, if we assume
fhd@60fps video's bitrates are like 20-30 mbps , it will fill up in 2-3 seconds, latest sd820 or sd835 can handle
fhd@120 fps, in 3 seconds they can handle 1 seconds of 1000 fps video, so it can be total of 4 seconds, hard to catch a scene in 4-5 seconds , it should be at least 10-15 seconds ,
but if i guess 15-20 second of
720p@1000fps videos can be possible.
also dont forget 1 second of 1000 fps video turn to 64 seconds @15fps super slow motion mode....
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Posted: 2017-02-07 16:43:29
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@blackzeros
Looking at the official video, it's look like it will be close, all those slow motion videos came at a burst of 4 seconds, and knowing that they used 15fps to demonstrate; they actually extended the length twice, the original is 2 seconds of 30fps footage.
I don't know if the DRAM will save the RAW footage or not, because if it will save the RAW footage it will be very hard as RAW is extremely large ( 1000 frames of RAW 1080p = over 6GB ), and if it will save the encoded footage then it will have a lot of data transfer, moving the data from sensor to the ISP/Encoder to encode, then going back to the sensor DRAM which does not make any sense !!
I believe as soon as the DRAM get the data it will directly start to send the data to the ISP, the DRAM is fast enough to have both write and read at the same time at such speed, the camera software might save the temporary data into RAM as the ISP won't have enough time to encode the stream on the fly. it will do this as long as the stream from the sensor to the ISP is continued, but because at such high-speed the DRAM will be filled faster than the ISP link is capable of handling, current smartphones sensors uses the standard MIPI CSI-2 / CSI-3 link, the fastest one which is a 4 lane CSI-3 link can handle up to 2.9GB/s which is way smaller than the RAW footage for
1080p@1000fps ( 1 second = 6.22GB ), so in theory a true 1000fps footage will max out at a 1.5~2.0 seconds.. I'm not an engineer so it's just an estimate of what I know...
The spec. on Sony's website indicate another thing...
in Video mode
4K@60
1080p/720p@240
the strange thing is that this is the continue video mode ( no burst of slow speed in the middle ), why still having
720p@240 while they can have it also at 480fps ? I guess it will be available but not in a continued video mode..
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Posted: 2017-02-08 06:17:30
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XperiaJunkie Posts: > 500
Looks good to me!
more images of the new XA[ This Message was edited by: XperiaJunkie on 2017-02-08 15:14 ]
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Posted: 2017-02-08 16:09:49
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On 2017-02-08 16:09:49, XperiaJunkie wrote:
Looks good to me!
more images of the new XA
[ This Message was edited by: XperiaJunkie on 2017-02-08 15:14 ]
If the rumours about XA(2017) are true,this just proves how blind and strategy lacking Sony is.They're about to release a mid-range product with more RAM than their last year flagship(XZ).
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Posted: 2017-02-08 16:17:38
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XperiaJunkie Posts: > 500
At only €300 or £250 it's a very good price considering the competition especially if the rumoured spec sheet is accurate.
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Posted: 2017-02-08 16:19:38
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It looks long and ugly !
Pls. Sony Change your design !
z2 user here
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Posted: 2017-02-08 16:19:50
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yeah, what happen, xperia phones just get ugly and uglier. Z5P was the peak of their design
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Posted: 2017-02-08 17:06:33
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Keep in mind that's just a mid range device. We don't know what the new flagship will look like
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Posted: 2017-02-08 17:20:19
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Call me special snowflake or whatever but I find the design well thought and elegant for a midrange.
BTW there are the old pics from the leaked vid.GSMarena is losing quality everyday
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Posted: 2017-02-08 18:48:00
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