Color Image Not Firing On Frame Event

[NickHardeman]

Hello,

I am adapting code from the ColorReaderEvent in the cpp-api folder. Seems pretty straight forward. But the on_frame_ready function is not being called. I am calling initialize() first, starting the color stream and then calling astra_temp_update();
Is there something that I am missing?

The depth stream works properly.
I am able to view the live color stream using an app like Photo Booth

I am on OSX 10.8 and XCode 5.1.1.

Some sample code
astra::Astra::initialize(); streamset = make_unique<astra::StreamSet>(); reader = make_unique<astra::StreamReader>(streamset->create_reader()); reader->stream<astra::ColorStream>().start(); reader.addListener(listener); // listener extends astra::FrameReadyListener and implements on_frame_ready(astra::StreamReader& reader, astra::Frame& frame) override

and then calling astra_temp_update(); every frame.

[josh]

Based upon your comment that you can view the live color stream in Photo Booth, I am guessing that you have an Astra Pro sensor, which exposes the color stream via UVC (like a standard webcam). This is in contrast to Astra and other OpenNI-like cameras which only expose color via an SDK.

See threads like:

Is it possible to use OpenNI with the Astra Pro?

Regarding OpenNI 2 - Astra (for both depth and color) and Astra Pro (just depth, no color) have drivers for OpenNI 2.2+ The proximity sensor, however, is a safety feature that is (at the moment) not directly user controllable that turns off the IR projector when something is detected to be too close to the front of the device. The lack of support for color streams in OpenNI2 with the Astra Pro is due to the non-trivial changes required to OpenNI 2 to enable support of the higher resolution UVC…

Compatibility Astra Pro and OpenNI2

Hi Antony, You can open the depth stream of Astra Pro with OpenNI and use lit like normal. The color stream of Astra Pro is only accessible through the UVC (webcam) interface, which OpenNI doesn’t support. We are working on better Astra Pro color support for the Astra SDK, but it isn’t ready yet. As for skeleton tracking, we are working on our own skeleton tracking (#1 priority right now) and will update when we can share news!

What's the difference between Astra, Astra S, Astra Pro

Hi, Tiago, Orbbec Astra is a general purpose 3D sensor that could fit various applications. Orbbec Astra S is specially calibrated for short range 3D scanning. Orbbec Astra Pro is similar to Astra in depth but has a high quality UVC RGB camera. This camera can stream 720P RGB stream @ 30 FPS. The UVC camera can also be used as a webcam. You may want to use it in immersive products that need to show high quality RGB video. The applications of these camera I mentioned are not locked at all. Yo…

for more on the UVC color camera and differences between Astra and Astra Pro.

Also, some sample code about accessing Astra Pro color:

Orbbec Astra Pro RGB-D Viewer - Open Source

Hello, Orbbec friends! I apologize for not releasing the code earlier. Some of our customers reported that they have difficulty accessing the RGB stream of our Astra Pro cameras. Now I am sharing the code that enables you access RGB-D via OpenNI below. Hopefully it will help in your future work. https://www.dropbox.com/sh/sjd55ic4s9i97fm/AAAbiCl6v-yAIbnQJAYH50Ksa?dl=0 Note: OpenNI 2 - based; Works on Astra/Astra Pro series Default resolution: VGA Enjoy!

We will be releasing an update to the Astra SDK that supports the Astra Pro color stream through the same API, but we’re trying to get a release of our skeleton tracking done first. See also: [Sticky] Astra SDK resources & updates

[NickHardeman]

Aha! Thank you for the tips.

[ujval]

Hello, Orbbec friends!
The links Not Working in above description is not working.