BTW, with Android 3.0 you can stream the camera directly into an OpenGL texture by using the SurfaceTexture API.
On Mon, Jun 20, 2011 at 8:57 PM, gjs <[email protected]> wrote: > Hi, > > I have done this successfully previously using a FrameLayout - adding > GLSurfaceView, then (Camera Preview) SurfaceView and then other 2d > overlay views - in that order, sound like you are doing the same or > similar. Mine worked ok on HTC Hero with 1.5 & and HTC G1 with 1.6 but > I've not tried since. > > For camera field of view, try outputting Camera.Parameters flatten() > and examine, sometimes you will see parameter details in the string > that do not have an explicit get/set api methods exposed, I don't know > off hand what the details are for HTC Hero with 2.1. > > Regards > > On Jun 21, 1:26 pm, Adam Ratana <[email protected]> wrote: >> Hi Nick, I am in a similar situation, if you happen to get this >> working please let me know if you don't mind. I've done an app which >> uses the canvas API on top of the SurfaceView for this reason, but >> that probably woudln't work or just take way too much time to >> implement if you're dealing with opengl friendly data. >> >> As far as the camera list, what I'm finding is, the amount of phones >> running 2.1 is decreasing, less than 6.5% of my paid users are on 2.1, >> and 15% of free app users are on 2.1, the only reason the app I'm >> doing is 2.1 compatible is because I still haven't updated my Galaxy S >> to 2.2. A lot of apps which do camera related things just support >> 2.2+, it may be something to consider if knowing FOV is super >> important. I also looked for a list but didn't find anything. Right >> now I'm considering letting people just zoom what I'm drawing. >> >> On Jun 20, 7:43 am, Nickw <[email protected]> wrote: >> >> >> >> >> >> >> >> > Hi, >> >> > I'm developing an augmented-reality app in which I wish to overlay >> > real-world data, specifically hiking trails from the OpenStreetMap >> > project, on the phone's camera feed. >> >> > I'm getting this kind-of working, using the camera's SurfaceView >> > stacked on the GLSurfaceView (yes, that way round, as documented by >> > several on the web). However you can't always see both layers and in >> > any case I've seen posts on here suggesting you're not supposed to >> > overlay two SurfaceViews on each other. >> >> > However what I'm struggling to find is an alternative way of doing it. >> > The method which springs to mind is to draw the OpenGL layer without >> > using a GLSurfaceView (e.g. just a regular view) but can that be done? >> > An alternative method is to send the feed to the GLSurfaceView as a >> > texture but this seems a bit of a long winded way of doing it and if >> > there are simpler alternatives, I'd prefer to go that route. >> >> > On another issue related to the same app, on Android 2.1 (and below) >> > there is no way to use the API to find any of the camera field of view >> > parameters, focal length, and so on. The specification for the HTC >> > Hero does not mention any of those parameters, though I've estimated >> > in the field a horizontal field of view of just under 40 degrees. It >> > seems that for 2.1 and below one would have to use some sort of table >> > mapping phone models to parameters, but again googling is drawing >> > blanks. Is anyone aware of a list of models and camera FOV parameters? >> >> > Thanks, >> > Nick > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > -- Romain Guy Android framework engineer [email protected] Note: please don't send private questions to me, as I don't have time to provide private support. All such questions should be posted on public forums, where I and others can see and answer them -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
