[Bug 106919] Stuttering when trying to decode stream encoded with omx

[Bug 106919] Stuttering when trying to decode stream encoded with omx

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=106919

            Bug ID: 106919
           Summary: Stuttering when trying to decode stream encoded with
                    omx
           Product: Mesa
           Version: 18.0
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: ricardo.ribalda@gmail.com
        QA Contact: dri-devel@lists.freedesktop.org

We have the following configuration:

With this configuration:
Mesa 18.1.1 AMD Radeon R7 Graphics (CARRIZO, DRM 3.25.0, 4.17.0, LLVM 6.0.1)

When we decode with OMX a video that was previously encoded with OMX, the video
seems to roll back a second once in a while (Please take a look to the videos,
it is hard to explain what is happening).

We are accessing libmesa-omx with libomx-bellagio 0.9.3 and gstreamer 1.12.4

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[Bug 106919] Stuttering when trying to decode stream encoded with omx

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https://bugs.freedesktop.org/show_bug.cgi?id=106919

--- Comment #1 from Ricardo Ribalda <ricardo.ribalda@gmail.com> ---
Created attachment 140154
  --> https://bugs.freedesktop.org/attachment.cgi?id=140154&action=edit
Original file encoded with omx (one keyframe per second)

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[Bug 106919] Stuttering when trying to decode stream encoded with omx

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=106919

--- Comment #2 from Ricardo Ribalda <ricardo.ribalda@gmail.com> ---
Created attachment 140156
  --> https://bugs.freedesktop.org/attachment.cgi?id=140156&action=edit
Sluttering (how do I see the video with omx decode)

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[Bug 106919] Stuttering when trying to decode stream encoded with omx

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=106919

Julien Isorce <julien.isorce@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |boyuan.zhang@amd.com,
                   |                            |leoxsliu@gmail.com

--- Comment #3 from Julien Isorce <julien.isorce@gmail.com> ---
Is it a regression ? Was it working for you before on the same or other config
?

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[Bug 106919] Stuttering when trying to decode stream encoded with omx

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=106919

--- Comment #4 from Ricardo Ribalda <ricardo.ribalda@gmail.com> ---
I do not know. It is the first time that I use this configuration: omx for
encoding and decoding.

The only thing that I know for sure is that the effect gets worse and worse if
I increase the frequency of key frames.

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[Bug 106919] Stuttering when trying to decode stream encoded with omx

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=106919

--- Comment #5 from Julien Isorce <julien.isorce@gmail.com> ---
Can you try gstreamer-vaapi ? to compare with another hw decoder. And with sw
decoders in gstreamer it works ? And other players ?
I am trying to determine if the issue is only in the omx decoder.

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[Bug 106919] Stuttering when trying to decode stream encoded with omx

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https://bugs.freedesktop.org/show_bug.cgi?id=106919

--- Comment #6 from Ricardo Ribalda <ricardo.ribalda@gmail.com> ---
I tried this combinations with gstreamer:

sw encoding + sw decoding (libva): works

sw encoding + omx decoding: works

omx encoding + sw decoding (libva): works

omx encoding + omx decoding : fails


I havent tried vaapi yet. I can try to give it a try tomorrow and report
results

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[Bug 106919] Stuttering when trying to decode stream encoded with omx

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=106919

--- Comment #7 from Ricardo Ribalda <ricardo.ribalda@gmail.com> ---
BTW: Are you aware of anyway that I can validate that a video is properly
encoded, besides playing it?

Thanks!

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[Bug 106919] Stuttering when trying to decode stream encoded with omx

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https://bugs.freedesktop.org/show_bug.cgi?id=106919

--- Comment #8 from Ricardo Ribalda <ricardo.ribalda@gmail.com> ---
We are trying with vappi and we cannot reproduce the bug. This is the pipeline
that we are using:

gst-launch-1.0 videotestsrc ! video/x-raw,width=800,height=600,framerate=60/1 !
timeoverlay  ! videoconvert ! vaapih264enc ! video/x-h264,profile=main !
h264parse ! vaapih264dec ! vaapisink sync=0 --gst-debug=*:3


To sumarise

ENC -> DEC : Result

sw    -> sw    : OK
sw    -> omx   : OK
sw    -> vappi : OK
omx   -> sw    : OK
omx   -> omx   : FAIL
omx   -> vappi : OK
vappi -> sw    : OK
vappi -> omx   : OK
vaapi -> vappi : OK

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[Bug 106919] Stuttering when trying to decode stream encoded with omx

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https://bugs.freedesktop.org/show_bug.cgi?id=106919

GitLab Migration User <gitlab-migration@fdo.invalid> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |MOVED

--- Comment #9 from GitLab Migration User <gitlab-migration@fdo.invalid> ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance: https://gitlab.freedesktop.org/mesa/mesa/issues/1315.

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