[osg-users] osgmovie - ffmpeg or Gstreamer

[Andrea Martini]

Hi Filippe,
thank you for your reply.
Well, i tried front slash string for osgMovie parameters:

C:/SVILUPPO/CommonData/Movie/surf360converted.ogg  --texture2D  --interactive --audio

but  _width and _height attribute in GStreamerImageStream::open method, continue to be equal to zero, and so this method returns false.

After that, i tried to call the same pipeline dynamically created in the open method, with gst_launch-1.0:

gst-launch-1.0.exe filesrc location=C:/SVILUPPO/CommonData/Movie/surf360converted.ogg !         decodebin name=deco         deco. ! queue ! videoconvert ! video/x-raw,format=RGB ! appsink name=sink emit-signals=true

I get the following console message:

C:\gstreamer\1.0\x86_64\bin>gst-launch-1.0.exe filesrc location=C:/SVILUPPO/CommonData/Movie/surf360converted.ogg !         decodebin name=deco         deco. ! queue ! videoconvert ! video/x-raw,format=RGB ! appsink name=sink emit-signals=true
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock

and nothing happens. Then i substitued appsink name=sink  with autovideosink,  but in this case i get the following error message:

C:\gstreamer\1.0\x86_64\bin>gst-launch-1.0.exe filesrc location=C:/SVILUPPO/CommonData/Movie/surf360converted.ogg !         decodebin name=deco         deco. ! queue ! videoconvert ! video/x-raw,format=RGB ! autovideosink emit-signals=true

Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
WARNING: from element /GstPipeline:pipeline0/GstDecodeBin:deco: Delayed linking failed.
Additional debug info:
./grammar.y(510): gst_parse_no_more_pads (): /GstPipeline:pipeline0/GstDecodeBin:deco:
failed delayed linking some pad of GstDecodeBin named deco to some pad of GstQueue named queue0
ERROR: from element /GstPipeline:pipeline0/GstDecodeBin:deco/GstOggDemux:oggdemux0: Internal data stream error.
Additional debug info:
gstoggdemux.c(4936): gst_ogg_demux_loop (): /GstPipeline:pipeline0/GstDecodeBin:deco/GstOggDemux:oggdemux0:
streaming stopped, reason not-linked (-1)
ERROR: pipeline doesn't want to preroll.
Setting pipeline to NULL ...
Freeing pipeline ..

And last, i removed   video/x-raw,format=RGB   getting the following command line:

gst-launch-1.0.exe filesrc location=C:/SVILUPPO/CommonData/Movie/surf360converted.ogg !         decodebin name=deco         deco. ! queue ! videoconvert ! autovideosink emit-signals=true


In this case video starts correctly.

So, i tried to change the pipeline in GStreamerImageStream::open with the following:

filesrc location=C:/SVILUPPO/CommonData/Movie/surf360converted.ogg !         decodebin name=deco         deco. ! queue ! videoconvert ! appsink name=sink emit-signals=true
 
But, i continue to get _width and _height equal to zero, and the open method returns false and no video play.



Cheers,
Andrea

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http://forum.openscenegraph.org/viewtopic.php?p=74165#74165