[Ssc-dev] encrypted camera feedback

[Martin Tzanev]

On Tue, May 12, 2015 at 10:56 AM, Nathan of Guardian
<nathan at guardianproject.info> wrote:
> On Tue, May 12, 2015, at 10:36 AM, Martin Tzanev wrote:
>> I really like using the encrypted camera and switch b/n front and back
>> cameras but it crashes a lot. I sent a lot of crash logs, are you getting
>> them?
>
> Yes, definitely!
>
>> Check this video
>> <https://drive.google.com/file/d/0BzH5srazsTA1UFoyQ1pKZlNSUkk/view?usp=sharing>
>> - skateboarding for metadata :) (frame freezes towards the end but audio
>> continues, i got a few other glitchy videos with encrypted camera) I
>
> That is an AWESOME video. I love when it flips around to you... so
> serious!

focused on not dropping that phone :)

> Yeah, I think the frames get ahead of the audio. Overall, perfect sync
> still needs to be achieved.
>
>> dropped the mkv into https://camera-v.org/ but got "sorry, that's didn't
>> work", tried i few times.
>
> I think because the MKV doesn't have the metadata in it, the camera-v
> process is unhappy. Still working on that...

That's what i thought too but was able to extract a j3m file from the
secure mkv with CameraV-express, see attached. was surprised cuz
previously j3m from secure mkv were 0kb.

>
>> I dropped the j3m file and got this link
>> <https://j3m.camera-v.org/submission/d9a455c8282e0707c301f17a7d00d4031788b6db/>
>> but
>> so far page is blank. I also tried dropping an mkv shot with proofmode
>> but
>> also got "sorry, that's didn't work".
>
> Ugh... well, yeah, I don't know what is going on. I think we need an
> intensive Camera-V.org sprint to wrap it up, because it feels like
> things are close, but still breaking a lot.
>
>> Encrypted camera issues:
>> - if u double-tap (by mistake) it crashes
>
> Hmm, I can't make that happen, but hopefully I can see in the logs. This
> is still camera?

No i only use the video camera and tap to grab a still - double tap
crashes it, i think it interprets it as taking 2 consecutive stills
but can't handle it.

>
>> - if u leave the encrypted camera on (not hit back button), and lock the
>> screen, when u log back in, it's crashed and media is lost
>> <https://drive.google.com/file/d/0BzH5srazsTA1T2I0SkJyclFMX2M/view?usp=sharing>.
>
> Okay.
>
>> It actually seems that it doesn't start importing until u hit back
>> button,
>> like in the old days, so i lost most of what i shot.
>
> Right. If you use external camera, it imports as it goes. I need to
> implement that for encrypted. Will get it done asap.
>
>> - another issue was, that every few times I tapped to take a still while
>> recording video, instead of taking a still it would switch to back facing
>> camera (potentially a security problem if u meant to be anonymous).
>
> ... I guess we need to tune the tap regions some more.

it would happen once every several taps, pretty consistently, and
tapping away from camera switch button.

>
>> - I got a lot of crashes when exporting infographics
>> <https://drive.google.com/file/d/0BzH5srazsTA1QmpoVGdSZnBKY3M/view?usp=sharing>.
>
> Okay. Will see that in the logs.

strangely, this crash did not generate logs

>
>> Another thing is that the app feels laggy, especially on personal devices
>> with more random stuff running. I think i started noticing a slow down
>> since last month (maybe after the major new version that required fresh
>> install) but didn't test on personal devices until now.
>
> Hmm. Maybe it is related to the updates IOCipher. That would be too bad.
> I think also though it could be that we are using more encrypted media
> again. Maybe try a fresh install with only external camera, and see if
> it still feels laggy?

will do

>
>> I wonder if it would make sense to disable orientation change for the app
>> screens (not the cameras, just the home and gallery, etc, screens) cuz it
>> contributes to lagging.
>
> I need to deal with being able to rotate the encrypted camera, so that
> is where the orientation changing came in. I can lock it back down for
> the rest of the UI possibly.
>
>> Shooting with ProofMode is much more stable over all.
>
> Good to hear!
>
>> I will test v175 today and write again later
>
> Actually about to post v176 with fixes for web sharing and dropbox
> improvements.

ok, waiting for it.

>
> --
>   Nathan of Guardian
>   nathan at guardianproject.info



-- 
Martin Tzanev
Video Technology Specialist
WITNESS (witness.org)
Tel: 718-783-2000 x322
martin at witness.org
PGP: 0xCC31292F
Twitter: @Tzanev, @witnessorg
Blog: blog.witness.org/author/martin/
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