Switching between videos with input-selector
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Switching between videos with input-selector
 
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Hello
I am trying to code an application with gst python, to allow switching between different videos. The final aim is to stream videos and switch between differents qualities or bitrate, according to the bandwith. For the moment, I use a local display for the tests. I use 2 playbin2 plugin to play the video easily, and I use 2 bins, one for each playbin, to make treatments on the video, such as videoscale and x264enc. After that, I use a third bin where I put the inputselector to switch between the two streams, and the output (local display here). I made some tests with the inputselector, it works well with just some usual plugins, but with the playbin, I have a problem. You can see in the code that I use ghostpads in order to link the differents bins. But, with all these bins, I have some difficulties to set all the bin state to play at the same time. I try to use a pipeline where I store the two playbins, and then a general pipeline, where I store the first pipeline plus the inputselector bin. If I understand correctly Gstreamer, it would allow me to set the general pipeline state to Play, and so all the pipeline and bins stored in it have the state changed to play, right ? For the moment, I made some test with the get_state functions, and it seems that the playbin play, but the inputselector stays in NULL or PAUSED state, without displaying something... If you have any idea how to deal with such a problem ? How to lauch all the pipeline in the same time ? I join all of the python code. Don't hesitate to ask question if I was not clear :) Thank you in advance, Victor Hery PS : This technic works well when I use the decode plugin (as theoradec for example) instead of playbin, but I have to use h264 decoding videos, and I failed to find a correct line to decode with ffdec_h264. And unfortunately there is a lack of documentation about this plugin on Internet. If you have some ideas about that secific point, I trust I could abandon playbin2 and use this instead. :) ------------------------------------------------------------------------------ This SF.net email is sponsored by Make an app they can't live without Enter the BlackBerry Developer Challenge http://p.sf.net/sfu/RIM-dev2dev _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel |
test.py (5K)
Re: Switching between videos with input-selector
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Re: Switching between videos with input-selector
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Re: Switching between videos with input-selector
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Re: Switching between videos with input-selector
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Re: Switching between videos with input-selector
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Re: Switching between videos with input-selector
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Re: Switching between videos with input-selector
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Ow, I haven't foud this example, it is very interresting !
I will take a closer look, thank you. Perhaps it will help with my problem to synchronize stop time and start time. For information, I think that the problem I spoke about yesterday is because of autovideosink. To be clear, when the first video is launched through inputselector, autovideosink opens a window which has the name of the file playing. And once I switch, this file stop. But, the window's name doesn't change, and there isn't any other window opening. It appears that the switch works, but there is just a problem of displaying, no doubt because of this window's name. I don't know how to deals with the problem, but I will try with an udp diffusion instead of a local display. As there is no window with specific name during a streaming, I hope the problem will disappear by itself. For what interest you Luciana, the block and switch signal works with me. I join a simple code I have made to learn about inputselector. It's quite simple, it allows to switch between videotestsrc plugin and a webcam stream, with a synchronization between two beeps. I hope it could help you how the signals works. Don't hesitate to ask me if anything is not clear in the code, it would me my pleasure to help you :) I use the gstreamer 0.10 version, the one in ubuntu 10.04. Thank you for all your help, Regards Victor Hery Le 20/08/2010 15:12, Andres Gonzalez a écrit : > On 19/08/10 15:30, victor héry wrote: >> I tried without inputselector, and after some adaptations and tests, it >> works well ! >> Now I tests with the input selector. >> Links seems to work, but when I switch between videos, it stops without >> apparents reasons. I am working on it. >> > Have you seen this example? it may help. > > http://cgit.freedesktop.org/gstreamer/gst-python/tree/examples/switch.py > > Regards, > > Andres > > > ------------------------------------------------------------------------------ > This SF.net email is sponsored by > > Make an app they can't live without > Enter the BlackBerry Developer Challenge > http://p.sf.net/sfu/RIM-dev2dev > _______________________________________________ > gstreamer-devel mailing list > [hidden email] > https://lists.sourceforge.net/lists/listinfo/gstreamer-devel ------------------------------------------------------------------------------ This SF.net email is sponsored by Make an app they can't live without Enter the BlackBerry Developer Challenge http://p.sf.net/sfu/RIM-dev2dev _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel |
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