use tegra_multimedia_api/samples/02_video_dec_cuda sampe. but Get defalut EGL display fail

Autonomous Machines Jetson & Embedded Systems Jetson TX1
1

use tegra_multimedia_api/samples/02_video_dec_cuda sampe. but Get defalut EGL display fail
detail:

if (parse_csv_args(&ctx, argc, argv))
{
    fprintf(stderr, "Error parsing commandline arguments\n");
    return -1;
}

// Get defalut EGL display
ctx.egl_display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
if (ctx.egl_display == EGL_NO_DISPLAY)
{
    fprintf(stderr, "Error while get EGL display connection\n");
    return -1;
}

return of “eglGetDisplay(EGL_DEFAULT_DISPLAY);” is fail。

I have cost somesday to solve this error。 thank anyone to help me.

2

Was this run through ssh? Or locally from a GUI? If ssh, then it needs you to set the DISPLAY environment variable to the correct DISPLAY (usually “export DISPLAY=:0”, but not always). If running from a local GUI, then perhaps EGL support is not installed (run “xdpyinfo” to see extensions to X).

3

Hi zbit, there is no issue on r24.2.1. Are you on r24.2.1? Do you install via Jetpack?

4

I have install jetpak3.0。 and try install jetpak 2.3
Need start some servers，first ？

5

For installing via Jetpack3.0, please refer to

After the system is booted, please do

# ssh Ubuntu@10.19.106.154
$ export DISPLAY=:0
$ cd tegra_multimedia_api/samples/02_video_dec_cuda
$ gst-launch-1.0 nvcamerasrc num-buffers=300 ! 'video/x-raw(memory:NVMM),width=1280,height=720' ! omxh264enc ! 'video/x-h264,stream-format=byte-stream' ! filesink location=a.h264
$ ./video_dec_cuda a.h264 H264

The steps are verified. Please give it a try.