accessing a camera on Android

joao machado 00jmsmachado at gmail.com
Wed May 27 13:40:38 PDT 2015


Hi all,

Let me just ask something somehow related with this post.

If I use an MK808 with an web cam I can't use video4linux to acess the
stream? or the previous suggestion was in the context of using the device
camera with the plugin.

Thanks in advance,
Joao.

On Wed, May 27, 2015 at 8:58 PM, Chuck Crisler <ccrisler at mutualink.net>
wrote:

> No, I haven't selected a Windows tablet yet. My goal is to learn Java and
> mobile programming, starting with Android (because I own an Android phone),
> then Windows/Windows tablet and Linux/Java, with an emphasis on multimedia.
> GStreamer is the best multimedia platform around (that I know of) and is
> (somewhat) portable across those platforms. As a personal goal I am working
> to develop a video conferencing app that runs on those platforms, simply
> because I am familiar with GStreamer and have worked in video conferencing
> for many years. This is a personal/professional development project.
>
> I had already thought of the appsrc approach. My only concern is whether
> or not Android allows me access to the image buffers. I have an app that
> displays from a camera now, so I have the structure and the correct
> callback, but haven't checked to verify access to the actual buffer -
> tonight's project. Android seems to be rather paranoid and restricts access
> to many things, either to make development *VERY* easy (once you figure it
> out) or for security.
>
> As far a writing a 'proper' source element...well I spent many years
> working on lower level Windows video (DX and DirectShow). So I may take
> that on along with first attempting to finish the camera work you began. I
> really want to use the same basic pipeline on all of the systems. And, of
> course, contributing to GStreamer would be another asset on my resume.
>
> Thank you for the guidance.
>
> Chuck
>
> On Wed, May 27, 2015 at 3:32 PM, Sebastian Dröge <
> sebastian at centricular.com> wrote:
>
>> On Mi, 2015-05-27 at 14:46 -0400, Chuck Crisler wrote:
>> > Thank you. That leaves me completely bewildered, which is better than
>> > pursuing the wrong direction. :-) Back to my original question, how do I
>> > use GStreamer to access the cameras on Android? It seemed that the
>> > conversation that Tim pointed to only discussed development strategies.
>> Has
>> > either been incorporated into the Android 1.4.5 binaries? Or is this an
>> > 'opportunity' for some development work? :-)
>>
>> I started merging this, just have to find some time to finish it. It's
>> mostly boring shuffling around of code, not really development work.
>>
>> Note: the code is there (see links in the bug report), just has to be
>> integrated properly and cleaned up a bit
>>
>> > This is now causing me to wonder about accessing a camera with GStreamer
>> > from a Windows tablet. Does that work?
>>
>> What Windows tablet, and do you already have GStreamer running there? ;)
>> But same answer as what Nicolas replied, appsrc... or write a proper
>> source element.
>> --
>> Sebastian Dröge, Centricular Ltd · http://www.centricular.com
>>
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>>
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