guijemont/gststabilizer

An attempt to make GStreamer elements that allow to stabilize shaky video streams

gststabilizer's Issues

numpy float128

Hi again,
This datatype (used in flow_revert.py:OpticalFlowRevert.init:L57) seems not to exist.

Moreover self._reference_transform is downcasted latter on to float64 (L79, after appling the transform). So using float128 seems useless, isn't?

Best regards,

Returned array's size error

Hi,
trying to apply the GstSatbilizer plugin to a bunch of jpg images, I got the following error:
ERREUR : de l'élément /GstPipeline:pipeline0/flow_finder+OpticalFlowFinder:flow_finder+opticalflowfinder0 : total size of new array must be unchanged
Information de débogage supplémentaire :
/home/fab/Boulot/test/PP_stab/GstStabilizer/python/flow_finder.py(96): _chain (): /GstPipeline:pipeline0/flow_finder+OpticalFlowFinder:flow_finder+opticalflowfinder0:
<type 'exceptions.ValueError'>: total size of new array must be unchanged

Any hint?

Complete verbose session
$ gst-launch -v multifilesrc location="im/%d.JPG" index=1 num-buffers=40 caps="image/jpeg,framerate=(fraction)6/1" ! jpegdec ! tee name=tee tee. ! ffmpegcolorspace ! opticalflowfinder ! opticalflowrevert name=mux tee. ! ffmpegcolorspace ! mux. mux. !
ffmpegcolorspace ! jpegenc ! multifilesink location="im_out/%d.JPG"

Définition du pipeline à PAUSED...
/GstPipeline:pipeline0/GstMultiFileSrc:multifilesrc0.GstPad:src: caps = image/jpeg, depth=(int)24, bpp=(int)24, endianness=(int)4321, red_mask=(int)16711680, green_mask=(int)65280, blue_mask=(int)255, width=(int)1, height=(int)1, framerate=(fraction)6/1, sof-marker=(int)0
Le pipeline est en phase de PREROLL...
/GstPipeline:pipeline0/GstMultiFileSrc:multifilesrc0.GstPad:src: caps = image/jpeg, framerate=(fraction)6/1
/GstPipeline:pipeline0/GstJpegDec:jpegdec0.GstPad:sink: caps = image/jpeg, framerate=(fraction)6/1
/GstPipeline:pipeline0/GstJpegDec:jpegdec0.GstPad:src: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)2250, height=(int)1500, framerate=(fraction)6/1
/GstPipeline:pipeline0/GstTee:tee: alloc-pad = (GstPad) src1
/GstPipeline:pipeline0/GstTee:tee.GstPad:sink: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)2250, height=(int)1500, framerate=(fraction)6/1
/GstPipeline:pipeline0/GstTee:tee.GstPad:src1: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)2250, height=(int)1500, framerate=(fraction)6/1
/GstPipeline:pipeline0/GstTee:tee.GstPad:src0: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)2250, height=(int)1500, framerate=(fraction)6/1
/GstPipeline:pipeline0/GstTee:tee.GstPad:sink: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)2250, height=(int)1500, framerate=(fraction)6/1
/GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp1.GstPad:src: caps = video/x-raw-rgb, depth=(int)24, width=(int)2250, height=(int)1500, framerate=(fraction)6/1, bpp=(int)24, endianness=(int)4321, red_mask=(int)16711680, green_mask=(int)65280, blue_mask=(int)255
/GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp1.GstPad:sink: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)2250, height=(int)1500, framerate=(fraction)6/1
/GstPipeline:pipeline0/flow_revert+OpticalFlowRevert:mux.GstPad:mainsink: caps = video/x-raw-rgb, depth=(int)24, width=(int)2250, height=(int)1500, framerate=(fraction)6/1, bpp=(int)24, endianness=(int)4321, red_mask=(int)16711680, green_mask=(int)65280, blue_mask=(int)255
/GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp0.GstPad:src: caps = video/x-raw-gray, depth=(int)8, width=(int)2250, height=(int)1500, framerate=(fraction)6/1, bpp=(int)8
/GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp0.GstPad:sink: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)2250, height=(int)1500, framerate=(fraction)6/1
/GstPipeline:pipeline0/flow_finder+OpticalFlowFinder:flow_finder+opticalflowfinder0.GstPad:sink: caps = video/x-raw-gray, depth=(int)8, width=(int)2250, height=(int)1500, framerate=(fraction)6/1, bpp=(int)8
ERREUR : de l'élément /GstPipeline:pipeline0/flow_finder+OpticalFlowFinder:flow_finder+opticalflowfinder0 : total size of new array must be unchanged
Information de débogage supplémentaire :
/home/fab/Boulot/test/PP_stab/GstStabilizer/python/flow_finder.py(96): _chain (): /GstPipeline:pipeline0/flow_finder+OpticalFlowFinder:flow_finder+opticalflowfinder0:
<type 'exceptions.ValueError'>: total size of new array must be unchanged
ERREUR : le pipeline refuse de passer en phase de préparation.
Définition du pipeline à NULL...
/GstPipeline:pipeline0/flow_revert+OpticalFlowRevert:mux.GstPad:mainsink: caps = NULL
/GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp1.GstPad:src: caps = NULL
/GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp1.GstPad:sink: caps = NULL
/GstPipeline:pipeline0/flow_finder+OpticalFlowFinder:flow_finder+opticalflowfinder0.GstPad:sink: caps = NULL
/GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp0.GstPad:src: caps = NULL
/GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp0.GstPad:sink: caps = NULL
/GstPipeline:pipeline0/GstTee:tee.GstPad:src1: caps = NULL
/GstPipeline:pipeline0/GstTee:tee.GstPad:src0: caps = NULL
/GstPipeline:pipeline0/GstTee:tee.GstPad:sink: caps = NULL
/GstPipeline:pipeline0/GstJpegDec:jpegdec0.GstPad:src: caps = NULL
/GstPipeline:pipeline0/GstJpegDec:jpegdec0.GstPad:sink: caps = NULL
/GstPipeline:pipeline0/GstMultiFileSrc:multifilesrc0.GstPad:src: caps = NULL
Libération du pipeline...

Use vstab

Vstab[1] is a library specifically designed for image stabilisation.
MLT seems to be using it with success[2]
[1] http://vstab.sourceforge.net/
[2] http://libregraphicsworld.org/blog/entry/mlt-0-7-6-released-with-video-stabilization-filters