[Bug 797161] New: rtph264pay/depay: Breaks decoding of high-bitrate streams

["GStreamer" (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=797161

Bug ID: 797161
Summary: rtph264pay/depay: Breaks decoding of high-bitrate
streams
Classification: Platform
Product: GStreamer
Version: unspecified
OS: Linux
Status: NEW
Severity: normal
Priority: Normal
Component: gst-plugins-good
Assignee: gstreamer-***@lists.freedesktop.org
Reporter: ***@coaxion.net
QA Contact: gstreamer-***@lists.freedesktop.org
GNOME version: ---

See below

gst-launch-1.0 videotestsrc ! capsfilter
caps=video/x-raw,width=1800,height=1600 ! x264enc ! rtph264pay ! rtph264depay !
queue ! decodebin ! videoconvert ! autovideosink

Lower resolution or not going through RTP makes it work fine.

["GStreamer" (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=797161

Tim-Philipp Müller <***@zen.co.uk> changed:

What |Removed |Added
----------------------------------------------------------------------------
CC| |***@zen.co.uk

--- Comment #1 from Tim-Philipp Müller <***@zen.co.uk> ---
Nothing to do with rtph264pay/depay it seems:

gst-launch-1.0 videotestsrc ! capsfilter
caps=video/x-raw,width=1800,height=1600 ! x264enc !
'video/x-h264,stream-format=(string)avc, alignment=(string)au, level=(string)5,
profile=(string)constrained-baseline, width=(int)1800, height=(int)1600,
pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)30/1,
interlace-mode=(string)progressive, colorimetry=(string)bt709,
chroma-site=(string)mpeg2, multiview-mode=(string)mono,
multiview-flags=(GstVideoMultiviewFlagsSet)0:ffffffff:/right-view-first/left-flipped/left-flopped/right-flipped/right-flopped/half-aspect/mixed-mono'
! queue ! decodebin ! videoconvert ! autovideosink sync=false -v

["GStreamer" (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=797161

Nicolas Dufresne (ndufresne) <***@ndufresne.ca> changed:

What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |NEEDINFO
CC| |***@ndufresne.ca
Component|gst-plugins-good |gst-plugins-ugly
Summary|rtph264pay/depay: Breaks |x264enc: High resolution
|decoding of high-bitrate |with default settings (cbr
|streams |and 2Mb/s) produces broken
| |stream

--- Comment #2 from Nicolas Dufresne (ndufresne) <***@ndufresne.ca> ---
It you increase the bitrate, or change the default pass from cbr to quant the
problem goes away. vaapih264enc uses Constant Quantizer (QP) as a default, so
that dummy usage works. Do you think we should change x264enc pass default to
quant ?

["GStreamer" (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=797161

GStreamer system administrator <***@gstreamer.net> changed:

What |Removed |Added
----------------------------------------------------------------------------
Status|NEEDINFO |RESOLVED
Resolution|--- |OBSOLETE

--- Comment #3 from GStreamer system administrator <***@gstreamer.net> ---
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