[Bug 758620] New: Increase x264enc bitrate limit > 100Mbps
GStreamer (GNOME Bugzilla)
bugzilla at gnome.org
Tue Nov 24 14:13:40 PST 2015
https://bugzilla.gnome.org/show_bug.cgi?id=758620
Bug ID: 758620
Summary: Increase x264enc bitrate limit > 100Mbps
Classification: Platform
Product: GStreamer
Version: git master
OS: Linux
Status: NEW
Severity: enhancement
Priority: Normal
Component: gst-plugins-ugly
Assignee: gstreamer-bugs at lists.freedesktop.org
Reporter: arjen.veenhuizen at tno.nl
QA Contact: gstreamer-bugs at lists.freedesktop.org
GNOME version: ---
Currently, the x264enc element allows bitrates in the range: Unsigned Integer.
Range: 1 - 102400 Default: 2048
E.g., up to approx. 100Mbps. To my knowledge, libx264, does not impose such
limit and can easily go over 600 Mbps. For our tests we experiment with 4K in
AVC I-only format, for which we need this kind of high bitrates. My suggestion
would be to increase the limits of this property. Currently we have to resort
to libx264/ffmpeg to meet these needs.
Observed behavior when bitrate is set to above 102400: element defaults to 2048
and shows a warning: (gst-launch-1.0:517): GLib-GObject-WARNING **: value
"200000" of type 'guint' is invalid or out of range for property 'bitrate' of
type 'guint'
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