[Mesa-dev] VAAPI encoder and OpenGL

[Leo Liu]

+Thong.

On 2020-04-27 8:29 a.m., Daniel Gomez wrote:
> Adding Boyuan Zhang to the thread.
>
> On Mon, 27 Apr 2020 at 14:00, Daniel Gomez <daniel at qtec.com> wrote:
>> Hi guys,
>>
>> We have found a limitation on the usage of the GPU and the encoder
>> when you run it simultaneously in a gstreamer pipeline and we would like to
>> report it and try to find a solution.
>>
>> Besides encoding the video frame, the following gstreamer pipeline shows the
>> usage of the GPU in two ways:
>> 1. OpenGL color conversion.
>> 2. Render to the display using OpenGL.
>>
>> DISPLAY=:0 \
>> GST_DEBUG="*:3,GST_TRACER:7" GST_TRACERS="queuelevel"  \
>> gst-launch-1.0 videotestsrc ! video/x-raw,format=RGBA ! \
>> glupload ! glcolorconvert !  gldownload  ! \
>> queue max-size-bytes=279936000 max-size-time=3000000000 leaky=2 ! \
>> vaapih264enc ! \
>> fakesink \
>> videotestsrc ! video/x-raw ! glimagesink sync=false
>>
>> By running the above pipeline you can see how the encoder queue fills up to the
>> maximum and never consumes the incoming data.
>>
>> Hardware information:
>>
>> AMD Embedded R-Series RX-421BD Radeon R7
>>
>> lspci -v -s 00:01.0
>> 00:01.0 VGA compatible controller: Advanced Micro Devices, Inc.
>> [AMD/ATI] Wani [Radeon R5/R6/R7 Graphics] (rev 84) (prog-if 00 [VGA
>> controller])
>> Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] Wani [Radeon
>> R5/R6/R7 Graphics]
>> Flags: bus master, fast devsel, latency 0, IRQ 53
>> Memory at e0000000 (64-bit, prefetchable) [size=256M]
>> Memory at f2000000 (64-bit, prefetchable) [size=8M]
>> I/O ports at 5000 [size=256]
>> Memory at f2c00000 (32-bit, non-prefetchable) [size=256K]
>> Expansion ROM at 000c0000 [disabled] [size=128K]
>> Capabilities: [48] Vendor Specific Information: Len=08 <?>
>> Capabilities: [50] Power Management version 3
>> Capabilities: [58] Express Root Complex Integrated Endpoint, MSI 00
>> Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
>> Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
>> Capabilities: [270] Secondary PCI Express <?>
>> Capabilities: [2b0] Address Translation Service (ATS)
>> Capabilities: [2c0] Page Request Interface (PRI)
>> Capabilities: [2d0] Process Address Space ID (PASID)
>> Kernel driver in use: amdgpu
>> Kernel modules: amdgpu
>>
>> DISPLAY=:0 glxinfo -B
>> name of display: :0
>> display: :0  screen: 0
>> direct rendering: Yes
>> Extended renderer info (GLX_MESA_query_renderer):
>>      Vendor: X.Org (0x1002)
>>      Device: AMD Radeon R7 Graphics (CARRIZO, DRM 3.36.0,
>> 5.5.0-qtec-standard, LLVM 8.0.0) (0x9874)
>>      Version: 19.0.1
>>      Accelerated: yes
>>      Video memory: 1024MB
>>      Unified memory: no
>>      Preferred profile: core (0x1)
>>      Max core profile version: 4.5
>>      Max compat profile version: 4.5
>>      Max GLES1 profile version: 1.1
>>      Max GLES[23] profile version: 3.2
>> OpenGL vendor string: X.Org
>> OpenGL renderer string: AMD Radeon R7 Graphics (CARRIZO, DRM 3.36.0,
>> 5.5.0-qtec-standard, LLVM 8.0.0)
>> OpenGL core profile version string: 4.5 (Core Profile) Mesa 19.0.1
>> OpenGL core profile shading language version string: 4.50
>> OpenGL core profile context flags: (none)
>> OpenGL core profile profile mask: core profile
>>
>> OpenGL version string: 4.5 (Compatibility Profile) Mesa 19.0.1
>> OpenGL shading language version string: 4.50
>> OpenGL context flags: (none)
>> OpenGL profile mask: compatibility profile
>>
>> OpenGL ES profile version string: OpenGL ES 3.2 Mesa 19.0.1
>> OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20
>>
>> Any idea/suggestion why is this happening?
>>
>> Thanks!
>> Daniel
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