ext/gdk_pixbuf/pixbufscale.*: to ensure rowstrides are calculated the same way as ffmpegcolorspace.
ext/gdk_pixbuf/pixbufscale.*: to ensure rowstrides are calculated the same way as ffmpegcolorspace.

Original commit message from CVS:
* ext/gdk_pixbuf/pixbufscale.c: (gst_pixbufscale_link),
(pixbufscale_scale), (gst_pixbufscale_chain):
* ext/gdk_pixbuf/pixbufscale.h:
Incorporate changes from Tim-Philipp Mueller <t.i.m@orange.net>
to ensure rowstrides are calculated the same way as
ffmpegcolorspace.
Use gst_buffer_stamp instead of copying timestamps manually, so
that we pick up duration and offset also.

Lachann/gst-plugins-ugly,knuesel/gst-plugins-ugly,reynaldo-samsung/gst-plugins-ugly,Distrotech/gst-plugins-ugly,ylatuya/gst-plugins-ugly,fluendo/gst-plugins-ugly,ylatuya/gst-plugins-ugly,PPCDroid/external-gst-plugins-ugly,shelsonjava/gst-plugins-ugly,jpakkane/gstreamer-plugins-ugly,knuesel/gst-plugins-ugly,matsu/gst-plugins-ugly,GrokImageCompression/gst-plugins-ugly,freedesktop-unofficial-mirror/gstreamer-sdk__gst-plugins-ugly,alessandrod/gst-plugins-ugly,matsu/gst-plugins-ugly,fluendo/gst-plugins-ugly,sebras/gst-plugins-ugly,shelsonjava/gst-plugins-ugly,jar1karp/gst-plugins-ugly,Kurento/gst-plugins-ugly,Distrotech/gst-plugins-ugly,fluendo/gst-plugins-ugly,jar1karp/gst-plugins-ugly,alessandrod/gst-plugins-ugly,jpakkane/gstreamer-plugins-ugly,knuesel/gst-plugins-ugly,Lachann/gst-plugins-ugly,shelsonjava/gst-plugins-ugly,sebras/gst-plugins-ugly,ylatuya/gst-plugins-ugly,jahrome/gst-plugins-ugly,StreamUtils/gst-plugins-ugly,ahmedammar/platform_external_gst_plugins_ugly,jahrome/gst-plugins-ugly,krieger-od/gst-plugins-ugly,cablelabs/gst-plugins-ugly,GStreamer/gst-plugins-ugly,Distrotech/gst-plugins-ugly,collects/gst-plugins-ugly,jar1karp/gst-plugins-ugly,GrokImageCompression/gst-plugins-ugly,reynaldo-samsung/gst-plugins-ugly,freedesktop-unofficial-mirror/gstreamer__gst-plugins-ugly,cablelabs/gst-plugins-ugly,surround-io/gst-plugins-ugly,krieger-od/gst-plugins-ugly,collects/gst-plugins-ugly,Distrotech/gst-plugins-ugly,Lachann/gst-plugins-ugly,StreamUtils/gst-plugins-ugly,matsu/gst-plugins-ugly,PPCDroid/external-gst-plugins-ugly,collects/gst-plugins-ugly,sebras/gst-plugins-ugly,collects/gst-plugins-ugly,prajnashi/gst-plugins-ugly,krieger-od/gst-plugins-ugly,PPCDroid/external-gst-plugins-ugly,Kurento/gst-plugins-ugly,Kurento/gst-plugins-ugly,cablelabs/gst-plugins-ugly,freedesktop-unofficial-mirror/gstreamer-sdk__gst-plugins-ugly,prajnashi/gst-plugins-ugly,freedesktop-unofficial-mirror/gstreamer__gst-plugins-ugly,prajnashi/gst-plugins-ugly,krieger-od/gst-plugins-ugly,alessandrod/gst-plugins-ugly,StreamUtils/gst-plugins-ugly,Distrotech/gst-plugins-ugly,matsu/gst-plugins-ugly,ahmedammar/platform_external_gst_plugins_ugly,surround-io/gst-plugins-ugly,jahrome/gst-plugins-ugly,ahmedammar/platform_external_gst_plugins_ugly,freedesktop-unofficial-mirror/gstreamer-sdk__gst-plugins-ugly,surround-io/gst-plugins-ugly,freedesktop-unofficial-mirror/gstreamer__gst-plugins-ugly,reynaldo-samsung/gst-plugins-ugly,GrokImageCompression/gst-plugins-ugly,GStreamer/gst-plugins-ugly,jpakkane/gstreamer-plugins-ugly,GStreamer/gst-plugins-ugly