[gstreamer-bugs] [Bug 164176] [jpegenc/dec] conversion bugs (wrong strides?)

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 http://bugzilla.gnome.org/show_bug.cgi?id=164176
 GStreamer | gst-plugins | Ver: HEAD CVS





------- Additional Comments From Tim-Philipp Müller  2005-02-10 12:42 -------
Created an attachment (id=37306)
 --> (http://bugzilla.gnome.org/attachment.cgi?id=37306&action=view)
stride fixes for jpegdec and jpegenc

I think it makes more sense to first fix jpegdec and jpegenc to use the same
rowstrides and buffer sizes that other GStreamer elements, most notably
ffmpegcolorspace and videotestsrc, use for video/x-raw-yuv,format=I420.

Attached patch does exactly that.

gst-launch-0.8 filesrc blocksize=1000000 location=aay.jpg ! jpegdec !
ffmpegcolorspace ! video/x-raw-rgb ! ffmpegcolorspace ! jpegenc  ! filesink
location=out.jpg

now produces a picture without the bad stripes.

The picture produced still has some artifacts though, as if one of the color
planes is missing or wrong lines get passed to the encoder. I haven't found the
cause of that yet.

Cheers
 -Tim


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