After an evaluation, GNOME has moved from Bugzilla to GitLab. Learn more about GitLab.
No new issues can be reported in GNOME Bugzilla anymore.
To report an issue in a GNOME project, go to GNOME GitLab.
Do not go to GNOME Gitlab for: Bluefish, Doxygen, GnuCash, GStreamer, java-gnome, LDTP, NetworkManager, Tomboy.
Bug 596571 - [qtdemux] parse support for clean aperture
[qtdemux] parse support for clean aperture
Status: RESOLVED OBSOLETE
Product: GStreamer
Classification: Platform
Component: gst-plugins-good
git master
Other Linux
: Normal enhancement
: git master
Assigned To: GStreamer Maintainers
GStreamer Maintainers
Depends on:
Blocks:
 
 
Reported: 2009-09-28 08:40 UTC by Philippe Normand
Modified: 2018-11-03 14:40 UTC
See Also:
GNOME target: ---
GNOME version: ---


Description Philippe Normand 2009-09-28 08:40:06 UTC 
The mov file in https://bugzilla.gnome.org/show_bug.cgi?id=596319 has clean aperture data too. It doesn't seem to be correctly parsed by qtdemux.

Extract of qtdump:

     clean aperture (clap)
       cleanApertureWidthN 41472
       cleanApertureWidthD 59
       cleanApertureHeightN 576
       cleanApertureHeightD 1
       horizOffN 0
       horizOffD 1
       vertOffN 0
       vertOffD 1
Comment 1 David Schleef 2009-09-29 03:19:28 UTC 
Aaaahh!  The 54:59 pixel aspect ratio strikes again!

More seriously, we don't handle clean apertures at all in GStreamer, sadly.  Since they're really only used in SD video, I recommend doing a manual videocrop to 704 width and videoscale to 640x480 (NTSC) or 768x576 (PAL) before you do any additional format conversion or encoding.
Comment 2 Edward Hervey 2013-07-18 05:22:08 UTC 
Couldn't this be solved by providing crop meta (in the same way it needs to be done in bug #694068 ) ?
Comment 3 GStreamer system administrator 2018-11-03 14:40:05 UTC 
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/issues/16.