GNOME Bugzilla – Bug 584392
pipeline fails with ffenc_h263
Last modified: 2009-06-04 15:52:19 UTC
gst-launch-0.10 filesrc location=Discovery.avi ! decodebin2 ! ffmpegcolorspace ! videoflip method=0 ! videorate ! videoscale method=1 ! capsfilter caps="video/x-raw-yuv, width=(int)176, height=(int)144, framerate=(fraction)10/1, pixel-aspect-ratio=(fraction)1/1" ! ffmpegcolorspace ! videobox top="-20" bottom="-20" ! ffmpegcolorspace ! ffenc_h263 ! queue ! gppmux ! filesink location=test.3gp This pipeline works fine if I don't set the videobox parameter or if I use another encoder than ffenc_h263 (for example ffenc_h263p)
Since 176x144 is an acceptable H263 dimension, but the videobox modified one (+20 for each) is not, this would seem normal behaviour (ffenc_h263p does not have these restrictions).