[THINK TANK] 720p encoding on nexus. DONE NEXUS ONE FTW

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charnsingh_online

Retired Recognized Developer

Feb 2, 2009

1,170

849

Amritsar

• Apr 29, 2010

• #1

GOT 720p clearing up the hack a bit and will release it most probably tomorrow


sorry for the confusin

http://www.megaupload.com/?d=RP7LCIU4

here is the image

 

Last edited: Jun 8, 2010

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SabrWolf

Senior Member

Jan 21, 2010

55

116

• Apr 29, 2010

• #2

now thats the kinda stuff im talking about !

lets get some effort on this, gonna start digging thru the source now..

 

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insomnia

Senior Member

Feb 16, 2006

272

58

Chula Vista

• Apr 29, 2010

• #3

it would be awesome if we can get this working !!!!!!!!!!!

 

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Eclair~

Senior Member

Dec 21, 2009

1,183

30

• Apr 29, 2010

• #4

Everytime there is a new post, I check this thread, sadly its just motivational comments. If this happens though, we will have one more thing that makes the Nexus and even better phone.

 

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coolbho3000

Retired Senior Recognized Developer

Dec 26, 2008

897

785

• Apr 29, 2010

• #5

Btw guys, the sensor is definitely capable of it. Like mentioned by the OP, it's just the encoding that is holding this up.

 

Geniusdog254

Retired Recognized Developer

Jan 2, 2009

1,110

169

St. Louis

• Apr 29, 2010

• #6

coolbho3000 said:

Btw guys, the sensor is definitely capable of it. Like mentioned by the OP, it's just the encoding that is holding this up.

Click to expand...

Click to collapse

What is the problem with the encoding to start with? I would much prefer to use the h264 codec to record video to start with, why does using it crash the camera app?

 

dsixda

Inactive Recognized Developer

Nov 1, 2007

9,586

5,323

Ottawa

• Apr 29, 2010

• #7

I think it would be better if we could get a constant bit rate for the video recorder instead, just like on the Milestone/Droid, rather than the frame skipping in indoor light conditions.

I also hope one day we can get a better audio format rather than 8kHz AMR in our video recordings :-(

But this is a good initiative anyway..

 

hypersonicx

Senior Member

Apr 11, 2007

741

105

Nashville

• Apr 30, 2010

• #8

dsixda said:

I think it would be better if we could get a constant bit rate for the video recorder instead, just like on the Milestone/Droid, rather than the frame skipping in indoor light conditions.

I also hope one day we can get a better audio format rather than 8kHz AMR in our video recordings :-(

But this is a good initiative anyway..

Click to expand...

Click to collapse

Thats exactly what I'm looking for in terms of fps. Made a thread requesting someone add the ability to records at constant 30fps and from my testing the framerate only drops when recording indoors or in low light conditions. The indoor lighting slows everything down but out side it records perfectly and smooth. If we can get that fixed by an android pro that would be great.

As for 720p I still think thats a hardware limitation somewhere in the lense or motherboard. If it was hardware possible, how come google didnt include that from the start?

 

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crabnebula

Senior Member

Apr 20, 2010

102

24

Montreal

• Apr 30, 2010

• #9

dsixda said:

I also hope one day we can get a better audio format rather than 8kHz AMR in our video recordings :-(

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Click to collapse

Just want to second this. The audio quality is pathetic and makes it useless for recording voice. It is one thing I miss from the iPhone. I'd assume that changing the audio codec and bitrate wouldn't be too hard for a good dev (which I certainly am not).

 

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vr24

Senior Member

Nov 29, 2007

408

0

• Apr 30, 2010

• #10

Records VERY well in ideal outside conditions, shot this the other day:
http://www.youtube.com/watch?v=gPh9NQAiBPA

Haven't tried low light, but that is using MoDaCo A21 Desire ROM.

 

dsixda

Inactive Recognized Developer

Nov 1, 2007

9,586

5,323

Ottawa

• Apr 30, 2010

• #11

vr24 said:

Records VERY well in ideal outside conditions, shot this the other day:
http://www.youtube.com/watch?v=gPh9NQAiBPA

Haven't tried low light, but that is using MoDaCo A21 Desire ROM.

Click to expand...

Click to collapse

Yes I know it works well in outdoor lighting - the point was that it skips frames indoors.

 

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lch920619x

Senior Member

Feb 26, 2010

495

364

Singapore

• Apr 30, 2010

• #12

From my experience of playing DSLR
the skipping in dim environment is probably because of insufficient CPU performance. When the light is dim, slower shutter speed and higher iso is required to obtain proper exposure, thus increase the noise. More cpu resource is needed to perform noise reduction. Then if the cpu is not strong enough, it skipps
If you take photos you know when you use high ISO and noise reduction at the same time, speed and the maximum frames of continuous shooting is usually affected.
So from my view, if we cannot improve the algorithm of encoder to achieve higher efficiency(which I think is quite difficult), then force disabling the noise reduction might be a way to solve this, although the video will be noisy...

just guessing...

 

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charnsingh_online

Retired Recognized Developer

Feb 2, 2009

1,170

849

Amritsar

• Apr 30, 2010

• #13

along with this i was also working on 30fps and 44khz sound. the max fps i could get indoor was 26, couldnt test outdoor. i am testin the sound now. Hey and 30fps is a go but 44khz sound causes fc, will check the logs. Uploading a 26.176fps video recorded on my N1. IT STILL skips some frames but the limit is lifted from 24fps stock android

 

Last edited: Apr 30, 2010

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MaxiJavi

Senior Member

Feb 26, 2010

206

11

• Apr 30, 2010

• #14

Great ...

I will try it out

BUT

Your screen shot says 720 x 480 ??

That is not 720p ... http://en.wikipedia.org/wiki/720p

The 720 refers to the height, not the lines

What you have is what is commonly referred to as DVD resolution (although really only for NTSC, as PAL is higher).

 

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MaxiJavi

Senior Member

Feb 26, 2010

206

11

• Apr 30, 2010

• #15

Incidentally ...

The Desire camera on the Nexus One can record at 800x480, but the I think it does it at 15 FPS and crap audio. 720x480 at 25-30 FPS with half decent audio would be very cool

 

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charnsingh_online

Retired Recognized Developer

Feb 2, 2009

1,170

849

Amritsar

• Apr 30, 2010

• #16

Yes currently only 720x480. First trying to get decent video at this resolution. Then will move to increasing resolutions.

 

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lch920619x

Senior Member

Feb 26, 2010

495

364

Singapore

• Apr 30, 2010

• #17

wow
480p to 720 p is a big jump
it's 2.67X data to process...

 

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charnsingh_online

Retired Recognized Developer

Feb 2, 2009

1,170

849

Amritsar

• Apr 30, 2010

• #18

Nexus has the capability to do that, try recording a video on ur phone and see how fast it processes a 480p video. IDC if it takes a bit more time to process and if it can decode it it should be able to encode it. 528mhz magic 32a can record 640x480 so it should be possible for nexus with a far far better processor to atleast to 720p

 

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charnsingh_online

Retired Recognized Developer

Feb 2, 2009

1,170

849

Amritsar

• Apr 30, 2010

• #19

anybody have the exact specifications of the nexus one processor, info about GPU and stuff, the problem on 720p is the excess load on processor which makes it hang and reboot

 

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y2whisper

Senior Member

Aug 17, 2006

2,483

275

Toronto

Nvidia Shield TV & TV Pro (2019)

Samsung Galaxy Note 20 Ultra

• Apr 30, 2010

• #20

charnsingh_online said:

anybody have the exact specifications of the nexus one processor, info about GPU and stuff, the problem on 720p is the excess load on processor which makes it hang and reboot

Click to expand...

Click to collapse

This is what i could find in terms of info

http://xdaforums.com/showthread.php?t=576627

http://www.edn.com/info/CA6631784.html?industryid=48661

Not sure if it helps.

I also get the FCs with H264 but not with H263.