[gstreamer-bugs] [Bug 602834] New: [ffmpegcolorspace] does un-necessary conversion from RGB to ARGB
GStreamer (bugzilla.gnome.org)
bugzilla at gnome.org
Tue Nov 24 06:53:30 PST 2009
https://bugzilla.gnome.org/show_bug.cgi?id=602834
GStreamer | gst-plugins-base | git
Summary: [ffmpegcolorspace] does un-necessary conversion from
RGB to ARGB
Classification: Desktop
Product: GStreamer
Version: git
OS/Version: Linux
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: gst-plugins-base
AssignedTo: gstreamer-bugs at lists.sourceforge.net
ReportedBy: phil at base-art.net
QAContact: gstreamer-bugs at lists.sourceforge.net
GNOME target: ---
GNOME version: ---
It looks like ffmpegcolorspace converts from RGB to ARGB even if downstream
elements support both. This example shows it:
gst-launch -v videotestsrc num-buffers=1 ! "video/x-raw-yuv" ! ffmpegcolorspace
!
"video/x-raw-rgb,bpp=(int)32,depth=(int)24,endianness=(int)4321,width=(int)320,height=(int)240,framerate=(fraction)30/1;video/x-raw-rgb,bpp=(int)32,depth=(int)24,endianness=(int)4321,width=(int)320,height=(int)240,framerate=(fraction)30/1,red_mask=(int)65280,green_mask=(int)16711680,blue_mask=(int)-16777216,alpha_mask=(int)255"
! fakesink
fakesink gets these caps: caps = video/x-raw-rgb, bpp=(int)32, depth=(int)24,
endianness=(int)4321, width=(int)320, height=(int)240,
framerate=(fraction)30/1, red_mask=(int)65280, green_mask=(int)16711680,
blue_mask=(int)-16777216
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