[gstreamer-bugs] [Bug 639506] XvQueryImageAttributes width/height parameters are not taken into account

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=639506
  GStreamer | gst-plugins-base | 0.10.x

--- Comment #8 from Kaz <kaz.balos+gnomebugzilla at gmail.com> 2011-01-17 08:57:08 UTC ---
Thank you for explanation - I have tested QueryImageAttributes with standard
strides and finally I got the same layout for gstreamer and mplayer. I found
that QueryImageAttributes is called by XvCreateImage in libxv - so it is called
indirectly. Gstreamer also does not ignore values in QueryImageAttributes, as 
when I do not change the width/height, pithes (YUV) and offsets in
XVQueryImageAttributes, I get from gstreamer/totem an error "Failed to create
output buffer" i.e. in case they are not aligned to standard strides like
640x470, 318x235, 318x235 (instead of 640x470, 320x235, 320x235, which work).
Nevertheless, I'll implement it with standard strides and instead of copying
the image data I'll probably truncate the movie width.

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