gstvideoencoder error

Fri Oct 26 15:35:57 UTC 2018

Hi,

Is there a way to force libva to use a specific driver?

I am looking at the difference between the success case and the failure case.

What I notice is that in the success case that libva is loading iHD driver.

libva info: VA-API version 1.1.0
libva info: va_getDriverName() returns 0
libva info: User requested driver 'iHD'
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.s

In the failure case libva is loading i965

libva info: VA-API version 1.1.0
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so
libva error: /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so has no function __vaDriverInit_1_

Why is libva choosing i965 driver in one case and iHD in the other?

I do have an environment variable set in both environments as follows.

LIBVA_DRIVER_NAME=iHD

In order to verify libva, I tried to check the output of vainfo in the failing environment but vainfo won't run.

error: can't connect to X server!
error: failed to initialize display

Thanks,
Rand

From: gstreamer-devel [mailto:gstreamer-devel-bounces at lists.freedesktop.org] On Behalf Of Rand Graham
Sent: Thursday, October 25, 2018 4:54 PM
To: Discussion of the development of and with GStreamer <gstreamer-devel at lists.freedesktop.org>
Subject: RE: gstvideoencoder error

Hi,

I am still having problems with this.

Going on the theory that an environment variable was not set, I went ahead and set the GST_PLUGIN_PATH as follows

export GST_PLUGIN_PATH=/usr/lib/x86_64-linux-gnu/gstreamer-1.0/

Now I am seeing strange errors as shown below. Some of the errors seem odd because they seem related to plugins  not used by the pipeline.

>From my interactive shell where I can launch the pipeline I don't have GST_PLUGIN_PATH set and it somehow just works.

I don't have any of these variables set in my shell environment:

https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gst-running.html

Are there any other environment variables that are important to gstreamer?

Errors that gstreamer is reporting when I set GST_PLUGIN_PATH:

(gst-plugin-scanner:6229): GStreamer-WARNING **: Failed to load plugin '/usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstgtksink.so': /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstgtksink.so: undefined symbol: gst_gl_display_wayland_new_with_display
Failed to connect to Mir: Failed to connect to server socket: No such file or directory
Unable to init server: Could not connect: Connection refused

(gst-plugin-scanner:6229): Clutter-CRITICAL **: Unable to initialize Clutter: Could not initialize Gdk

(gst-plugin-scanner:6229): Clutter-Gst-CRITICAL **: Unable to initialize Clutter

(gst-plugin-scanner:6229): GStreamer-WARNING **: Failed to load plugin '/usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstcompositor.so': /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstcompositor.so: undefined symbol: gst_videoaggregator_pad_get_type

(gst-plugin-scanner:6229): GLib-GObject-WARNING **: specified class size for type 'GstMssDemux' is smaller than the parent type's 'GstAdaptiveDemux' class size

(gst-plugin-scanner:6229): GLib-CRITICAL **: g_once_init_leave: assertion 'result != 0' failed

(gst-plugin-scanner:6229): GStreamer-CRITICAL **: gst_element_register: assertion 'g_type_is_a (type, GST_TYPE_ELEMENT)' failed

(gst-plugin-scanner:6229): GLib-GObject-WARNING **: specified class size for type 'GstHLSDemux' is smaller than the parent type's 'GstAdaptiveDemux' class size

(gst-plugin-scanner:6229): GLib-CRITICAL **: g_once_init_leave: assertion 'result != 0' failed

(gst-plugin-scanner:6229): GStreamer-CRITICAL **: gst_element_register: assertion 'g_type_is_a (type, GST_TYPE_ELEMENT)' failed

(gst-plugin-scanner:6229): GStreamer-WARNING **: Failed to load plugin '/usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstopengl.so': /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstopengl.so: undefined symbol: gst_gl_filter_draw_textur

Thanks,
Rand

From: gstreamer-devel [mailto:gstreamer-devel-bounces at lists.freedesktop.org] On Behalf Of Rand Graham
Sent: Friday, October 19, 2018 3:36 PM
To: Discussion of the development of and with GStreamer <gstreamer-devel at lists.freedesktop.org<mailto:gstreamer-devel at lists.freedesktop.org>>
Subject: RE: gstvideoencoder error

Hi all,

I just received this error again on my machine this time.

The case where I receive this error on my machine is when running in a non-interactive environment. That is I am trying to call the gst-launch-1.0 pipeline from a php script using shell_exec.

Can someone tell me what environment variable needs to be set so that mfx264enc will work?

Thanks,
Rand

From: Rand Graham/LGEUS Zenith R&D CSD(rand.graham at lge.com<mailto:rand.graham at lge.com>)
Sent: Thursday, September 06, 2018 4:23 PM
To: 'Discussion of the development of and with GStreamer' <gstreamer-devel at lists.freedesktop.org<mailto:gstreamer-devel at lists.freedesktop.org>>
Subject: gstvideoencoder error

Hello,

I am trying to run a pipe line that works on my machine on a colleague's machine with the same hardware and software set up, using Ubuntu 16.04 and compiling gstreamer from source.

The pipeline works on my machine but not on their machine.

There seems to be a problem with the mfxh264enc plugin.

I am getting the following error

gst-launch-1.0 -v -e mpegtsmux name=m ! hlssink target-duration=5  souphttpsrc location="http://127.0.0.1:8000/routestream/4" ! qtdemux ! h265parse ! mfxhevcdec ! videoconvert ! mfxvpp width=1280 height=720 !  mfxh264enc ! "video/x-h264, stream-format=byte-stream, profile=high" ! m.
Setting pipeline to PAUSED ...
ERROR: Pipeline doesn't want to pause.
ERROR: from element /GstPipeline:pipeline0/GstMfxEncH264:mfxench264-0: Could not initialize supporting library.
Additional debug info:
gstvideoencoder.c(1627): gst_video_encoder_change_state (): /GstPipeline:pipeline0/GstMfxEncH264:mfxench264-0:
Failed to open encoder
Setting pipeline to NULL ...
Freeing pipeline ..

I googled the error message. I found something about not having enough gpu memory. I used lspci to check the gpu information on both machines and lspci reports identical information for the intel GPU that is being used on both machines.

lspci -v -s 0:02.0
00:02.0 VGA compatible controller: Intel Corporation Sky Lake Integrated Graphics (rev 07) (prog-if 00 [VGA controller])
        Subsystem: Intel Corporation Skylake Integrated Graphics
        Flags: bus master, fast devsel, latency 0, IRQ 127
        Memory at d0000000 (64-bit, non-prefetchable) [size=16M]
        Memory at c0000000 (64-bit, prefetchable) [size=256M]
        I/O ports at 1c00 [size=64]
        [virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
        Capabilities: <access denied>
        Kernel driver in use: i915
        Kernel modules: i915

I suspect something is misconfigured but I am not sure what.

I run gnome on my machine but I am trying to run my colleague's system in a headless mode by using ssh to access the command line. I am not sure if that has anything to do with it but that is the main difference between how I am trying to run the pipeline.

Has anybody seen something like this before?

What support library does the x264 encoder need?

Any trouble shooting tips?

Thanks,
Rand

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