[gstreamer-bugs] [Bug 496127] New: 4:2:2 support for deinterlacing

[GStreamer (bugzilla.gnome.org)]

If you have any questions why you received this email, please see the text at
the end of this email. Replies to this email are NOT read, please see the text
at the end of this email. You can add comments to this bug at:
  http://bugzilla.gnome.org/show_bug.cgi?id=496127

  GStreamer | gst-ffmpeg | Ver: HEAD CVS
           Summary: 4:2:2 support for deinterlacing
           Product: GStreamer
           Version: HEAD CVS
          Platform: Other
        OS/Version: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-ffmpeg
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: bouvigne at mp3-tech.org
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: Unspecified
   GNOME milestone: Unspecified


Right now, both ffdeinterlace and postproc_ffmpegdeint only handle 4:2:0 input.

If input is 4:2:2, the only option is to convert colorspace before. However,
there is no interlacing information carried within the current Gstreamer, so
the 4:2:2->4:2:0 convertion would be done on interlaced content, without being
aware of this. This is likely to produce serious chroma artifacts.

Considering that the avpicture_deinterlace ffmpeg function is supporting 4:2:2
(and higher) as input, extending the caps abilities of the ffdeinterlace  and
postproc_ffmpegdeint would allow to correctly deinterlace 4:2:2 content, which
is not possible right now.


-- 
See http://bugzilla.gnome.org/page.cgi?id=email.html for more info about why you received
this email, why you can't respond via email, how to stop receiving
emails (or reduce the number you receive), and how to contact someone
if you are having problems with the system.

You can add comments to this bug at http://bugzilla.gnome.org/show_bug.cgi?id=496127.