Simple gst-launch playback on A100?!

[amir7]

I’ve just stated toying with gstreamer and deepstream (ngc container 6.1) on a machine with a A100, and cannot figure what to change in the second cmd below to get it to work like the first:

$ gst-launch-1.0 filesrc location=/path/sample_720p.h264 ! h264parse ! avdec_h264 ! nveglglessink

$ gst-launch-1.0 filesrc location=/path/sample_720p.h264 ! h264parse ! nvv4l2decoder ! nveglglessink
Setting pipeline to PAUSED …
Pipeline is PREROLLING …
Got context from element ‘eglglessink0’: gst.egl.EGLDisplay=context, display=(GstEGLDisplay)NULL;
cuGraphicsGLRegisterBuffer failed with error(219) gst_eglglessink_cuda_init texture = 1
ERROR: from element /GstPipeline:pipeline0/GstH264Parse:h264parse0: Internal data stream error.
Additional debug info:
gstbaseparse.c(3634): gst_base_parse_loop (): /GstPipeline:pipeline0/GstH264Parse:h264parse0:
streaming stopped, reason not-negotiated (-4)
ERROR: pipeline doesn’t want to preroll.
Setting pipeline to NULL …
Freeing pipeline …

[Amycao]

cuGraphicsGLRegisterBuffer failed with error(219) gst_eglglessink_cuda_init texture = 1

A100 is not display card, it’s compute card. you can try to setup virtual display, following Deepstream/FAQ - eLinux.org 5A, but it’s for Tesla series. you can give it a try.

[yingliu]

Hello @amir7 Do you need further support? I think we can close the topic here.

[amir7]

Thanks,
is it possible to run the deepstream examples with this setup by letting the cpu handle the encoding part? If so could you point me to where I can see the code for it?

[Amycao]

You can refer to deepstream-app, which support hardware encoder and software encode, you can set in config.
#encoder type 0=Hardware 1=Software
enc-type=1
create_encode_file_bin in sources/apps/apps-common/src/deepstream_sink_bin.c