[Webkit-unassigned] [Bug 245852] [GStreamer] Freezing and crashing caused by scrubbing streaming video content

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=245852

gumbercules12 at protonmail.com changed:

           What    |Removed                     |Added
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                 CC|                            |gumbercules12 at protonmail.co
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--- Comment #32 from gumbercules12 at protonmail.com ---
Created attachment 470425

  --> https://bugs.webkit.org/attachment.cgi?id=470425&action=review

Phub, Rumble, YouTube all glitching

gst-inspect-1.0 va outputs:
Plugin Details:
  Name                     va
  Description              VA-API codecs plugin
  Filename                 /lib/x86_64-linux-gnu/gstreamer-1.0/libgstva.so
  Version                  1.22.10
  License                  LGPL
  Source module            gst-plugins-bad
  Documentation            https://gstreamer.freedesktop.org/documentation/va/
  Source release date      2024-02-13
  Binary package           GStreamer Bad Plugins (Debian)
  Origin URL               https://tracker.debian.org/pkg/gst-plugins-bad1.0

  vah264dec: VA-API H.264 Decoder
  vah264lpenc: VA-API H.264 Low Power Encoder
  vah265dec: VA-API H.265 Decoder
  vajpegdec: VA-API JPEG Decoder
  vampeg2dec: VA-API Mpeg2 Decoder
  vavp8dec: VA-API VP8 Decoder
  vavp9dec: VA-API VP9 Decoder

The attached log is produced using the same command as erusan, output has a bunch of zeroes and slashes in it...is that the garbage making these logs useless?

GST_DEBUG="3,webkit*:6" GST_DEBUG_FILE="$HOME/gst.log" GST_DEBUG_NO_COLOR=1 WEBKIT_DISABLE_SANDBOX_THIS_IS_DANGEROUS=1 GST_PLUGIN_FEATURE_RANK=vah264dec:max,vah264lpenc:max,vah265dec:max,vajpegdec:max,vampeg2dec:max,vavp8dec:max,vavp9dec:max epiphany-browser

Behavior was:
Opening private phub window, audio is distorted.
Seeking around in rumble video, eventually the player froze, then clicking on it made it resume the audio (but no video played).
Seeking around in a YouTube video made the video eventually fastword to the end at lightning speed.

Will try this on a different machine to see if processor is involved (although initial reporter was using AMD).

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