[Bug 725033] New: Please enable lossless h264 encoding with x264enc

GStreamer (bugzilla.gnome.org) bugzilla at gnome.org
Sun Feb 23 16:22:20 PST 2014


https://bugzilla.gnome.org/show_bug.cgi?id=725033
  GStreamer | gst-plugins-ugly | 1.2.3

           Summary: Please enable lossless h264 encoding with x264enc
    Classification: Platform
           Product: GStreamer
           Version: 1.2.3
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: Normal
         Component: gst-plugins-ugly
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: e996505 at drdrb.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


Setting the lower limit for the "quantizer" option to 0 instead of 1 and then
encoding with "pass=qual quantizer=0" leads to a successful lossless encoding
for me.

At least for quality based encoding, quantizer is equivalent to the --crf
option, about which the help says:
"--crf <float>           Quality-based VBR (0-51) [23.0]"

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