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Questions tagged [tegra]

Tegra is a family of systems-on-chip (SoC) for mobile devices, designed and sold to device manufacturers by NVIDIA, including one or more ARM CPU cores, a specially-designed NVIDIA GPU, among other components.

Tegra SoCs are usually found in mobile phones and tablets. See NVIDIA's Tegra site for specs, and some examples of products powered with Tegra processors. So far there have been three iterations of the Tegra family, named numerically.

This tag is very likely to be found in conjunction with , and sometimes .

121 questions
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Gstreamer videoconvert color conversion wrong?

I'm launching a gst-launch-1.0 that captures camera images with nvgstcamera. The images are encoded to VP9 video. The video is tee'd to a filesink that saves the video in a webm container and to a VP9 decoder that pipes the images into an…
Laurenz
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Delay in X11VNC response

I have been trying to write a simple VNC viewer which requests for framebuffer updates every 30ms on a nvidia Tegra K1 board. // Data to be sent to the X11VNC server for requesting updates for 800x480 region. unsigned char updateReqBuffer[] =…
Nithyesh
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Unable to open gstreamer pipeline using opencv VideoCapture on Jetson TK1

I wrote a program that reads frames from a gstreamer pipeline, processes them with opencv libraries and then writes back to the gstreamer pipeline. Code snippet: cv::VideoCapture cap("v4l2src ! video/x-raw, framerate=30/1, width=640, height=480,…
j0e1in
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Assigning and Managing Specific Threads under Constraints

Forgive me for I am not an expert in multi-threading by any means and need some assistance. So just some given knowledge before I get to my question: Pre-Knowledge Developing C++ code on the Jetson TK1 Jetson has 4 CPU cores (quad-core CPU ARMv7…
John-Michael Burke
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opencv4tegra: issues compiling sample stereo_match.cpp

I am having considerable difficulty compiling a standard opencv sample with opencv4tegra - installed as instructed by the nvidia wiki for the Jetson TK1. Out of frustration I built opencv from the 2.4.10.1 source and I installed it directly into…
hhony
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Decode and stream h264 over udp with GStreamer

I'm trying to decode a video from h264 and reencode it to transfer to a client trhough udp: On the transmitter side: gst-launch-1.0 -v filesrc location=/home/ubuntu/Videos/test.mp4 ! qtdemux name=demux ! h264parse ! omxh264dec ! nvvidconv !…
Francois M.
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Android Renderscript displays corrupted buffer

I am developing a simple Renderscript application that does basic image manipulation. It runs fine on my Nexus 5, but not on my Shield Tablet. I have an Allocation (RGB8888) of the same size as a SurfaceView, usage is Allocation.USAGE_SCRIPT. I have…
David Crouse
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resident warps per SM in (GK20a GPU) tegra k1

How many resident warps are present per SM in (GK20a GPU) tegra k1? As per documents I got following information In tegra k1 there is 1 SMX and 192 cores/multiprocessor Maximum number of threads per multiprocessor: 2048 Maximum number of threads…
user3864436
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Combining texture memory Unified Memory in CUDA 6

I am writing a CUDA application for Jetson TK1 using CUDA 6. I have got the impression from Mark Harris in his blog post Jetson TK1: Mobile Embedded Supercomputer Takes CUDA Everywhere that the memory of the Tegra K1 is physically unified. I have…
mattiasthenils
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Tegra3 -- High latency with hardware decoding

Hardware:Nexus 7 OS Version: Android 4.1.2 Problem: I use OpenMAX IL to decode H.264 video stream(640x480). Between I give a raw H.264 frame and I receive a YUV frame, it is about 2~4 seconds. The YUV frame is correct. Question: Is it really need…
Du J.Nan
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Missing alpha channel in DXT5 texture on android device

I'm porting mobile game to Android and want to use compressed textures in OpenGL the same way I did on iOS with PVR textures. I've managed to convert my textures from PNG to DXT and run the game on Galaxy Tab 10.1 with Nvidia Tegra 2…
RomanVlasov
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Is the OES_framebuffer_object extension broken on Tegra based devices?

We port some OpenGL ES 1.x code which use FBO extension (GL_OES_framebuffer_object) to Android and got the problems with Tegra based devices (Tegra 2, Tegra 3). The problem is that while devices report GL_OES_framebuffer_object extension in the list…
Alexey Kryshen
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Flushing the L2 cache on ARM (Tegra 3) unexpectedly increases performance

In this scenario: I receive of about 1MB over the network into a buffer over TCP in a separate thread. Decompression on this buffer results in about 2MB of data. Two calls to the same dynamically linked library function of which I own the…
Cat Zimmermann
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Add two big endian values on little endian machine

I am currently facing a problem of which I have no idea how to avoid it.. I try to process data which can be either in big endian or little endian. This is not really a problem because it always starts with a header so I can check which endian mode…
Tobias
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fwidth() tegra 3 glsl

This is result of this program rendering few quads on Tegra 3 device : #extension GL_OES_standard_derivatives : enable precision mediump float; uniform sampler2D sampler2d; …
ZZZ
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