Hi Serge,
I don't think it's easy. One has to be very careful about the video/audio synchronisation issues when pausing. Also rewind() would behave differently whether the stream is paused or not (when paused, you still want to decode the current frame but not play any sound). Tanguy From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Serge Lages Sent: 23 June 2009 12:53 To: OpenSceneGraph Users Subject: Re: [osg-users] FFmpeg questions Thanks Tanguy for your answer, it explains why I am having troubles... :) Any idea on how difficult it should be to implement the pause feature ? On Tue, Jun 23, 2009 at 12:26 PM, Tanguy Fautre <tang...@aristechnologies.com> wrote: Hi, When the ffmpeg plugin was integrated into osg, the pause feature was not implemented. I'm not sure anyone has implemented it since then, so it's not a surprise it's not working correctly. Tanguy From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Serge Lages Sent: 23 June 2009 11:13 To: OpenSceneGraph Users Subject: Re: [osg-users] FFmpeg questions Hi all, I've made a test with the osgmovie example and I have the same behaviour. Using the ffmpeg plugin (by adding .ffmpeg to my file path), when it starts, everything is OK, my movie is played. But if I pause the movie, then wait 5 seconds and play it again (with the key 'p'), the movie is played too fast during 5 seconds... Anyone can test the osgmovie example on its OS/configuration (with ffmpeg of course) and tell me if you have the same behaviour ? Maybe it's a problem with my version of FFmpeg, or a problem with Windows... I can even send you my movie if you want (send the request by mail), it's a .flv one, but I have also made tests with avi files and I have the same problem. Thanks ! On Fri, Jun 19, 2009 at 10:02 AM, Serge Lages <serge.la...@gmail.com> wrote: Hi Garrett, Thanks for your answer. I've made some tests : - setCullingActive(false) on my node as no effect, still too fast. - I've also tried to let my video always on the screen, but I still start to play it after an action, and it's still too fast during the same time than I waited to play it... On Thu, Jun 18, 2009 at 9:31 PM, Garrett Potts <po...@cfl.rr.com> wrote: Hello Serge: Hmm, sounds like the object is getting culled out and so real time updates is delayed until it comes back into the scene?? I have not looked at the code but, if you are manually putting the object into the scene then try for fun to say setCullingActive(false); just to test this theory out. This way if frustum culling is on or some higher level culling then it will ignore it for that object. Take care Garrett Potts On Jun 18, 2009, at 3:17 PM, Serge Lages wrote: Hi all, I have 2 questions about the ffmpeg plugin : - In the ReaderWriterFFmpeg.cpp file, line 76 a "path" variable is declared using the osgDB::findDataFile function to get the correct file name, but line 83, the old "filename" variable is used instead of "path". This way, the dataPathList is not used to get the video file, is it normal ? - Currently, I load a video and put it on an object which is outside the screen (the video is in pause mode). After an action, this object slide into the screen and the video is played, but first the video is played too fast (maybe 2x or 4x) and after some seconds it comes back to the correct speed. To be more precise, if I wait 5 seconds before making my object slide into the screen and play the video, it will be too fast during 5 seconds, if I wait 2 seconds, it's too fast 2 seconds... Anyone knows what's the problem here ? I'am under WinXP, compile with VS8 and I took my version of FFmpeg here : http://www.openscenegraph.org/downloads/dependencies/FFmpeg/Windows/ffmp eg-r15261.zip My video is a .FLV with an audio stream. Thanks for your help ! -- Serge Lages http://www.tharsis-software.com _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.or g _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.or g -- Serge Lages http://www.tharsis-software.com -- Serge Lages http://www.tharsis-software.com _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.or g -- Serge Lages http://www.tharsis-software.com
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