handling unknown streams gracefully
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handling unknown streams gracefully
 
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hey all,
I have a (python) program that runs through a playlist of audio files. It uses decodebin2 and associated machinery. If a file cannot be decoded, I wish to simply skip it, without complaint. How is this done? ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel |
Re: handling unknown streams gracefully
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IMHO you can write a application and catch the error signals on the Bus, and based on that skip the file.
On Tue, Mar 2, 2010 at 6:48 AM, Jeremiah Rose <[hidden email]> wrote: hey all, -- http://www.linkedin.com/in/kapilagrawal ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel |
Re: handling unknown streams gracefully
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I was hoping for a little more detail, as I've been unable to find any
documentation on the subject (once I've got a thorough understanding, I'd be happy to write some). Which signals are they? I am aware that decodebin emits "unkown-type", but what does it do after it emits the signal? I am blocking and pre-rolling the pipeline, and it seems like the block and preroll happen anyway, without any decoded pads being connected. Is this the correct behaviour? Also, does the failure to typefind cause the pipeline to post any messages? Where can I find more information? thanks, Jez On 2 March 2010 17:25, Kapil Agrawal <[hidden email]> wrote: > IMHO you can write a application and catch the error signals on the Bus, and > based on that skip the file. > > > On Tue, Mar 2, 2010 at 6:48 AM, Jeremiah Rose > <[hidden email]> wrote: >> >> hey all, >> >> I have a (python) program that runs through a playlist of audio files. >> It uses decodebin2 and associated machinery. If a file cannot be >> decoded, I wish to simply skip it, without complaint. How is this >> done? >> >> >> ------------------------------------------------------------------------------ >> Download Intel® Parallel Studio Eval >> Try the new software tools for yourself. Speed compiling, find bugs >> proactively, and fine-tune applications for parallel performance. >> See why Intel Parallel Studio got high marks during beta. >> http://p.sf.net/sfu/intel-sw-dev >> _______________________________________________ >> gstreamer-devel mailing list >> [hidden email] >> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel > > > > -- > http://www.linkedin.com/in/kapilagrawal > > ------------------------------------------------------------------------------ > Download Intel® Parallel Studio Eval > Try the new software tools for yourself. Speed compiling, find bugs > proactively, and fine-tune applications for parallel performance. > See why Intel Parallel Studio got high marks during beta. > http://p.sf.net/sfu/intel-sw-dev > _______________________________________________ > gstreamer-devel mailing list > [hidden email] > https://lists.sourceforge.net/lists/listinfo/gstreamer-devel > > ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel |
Re: handling unknown streams gracefully
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Am 02.03.2010 23:55, schrieb Jeremiah Rose:
> I was hoping for a little more detail, as I've been unable to find any > documentation on the subject (once I've got a thorough understanding, > I'd be happy to write some). > > Which signals are they? > > I am aware that decodebin emits "unkown-type", but what does it do > after it emits the signal? > > I am blocking and pre-rolling the pipeline, and it seems like the > block and preroll happen anyway, without any decoded pads being > connected. Is this the correct behaviour? > > Also, does the failure to typefind cause the pipeline to post any messages? > > Where can I find more information? For python, there is some docs on a berlios project (use google). Using grep on python sources is a good idea too. Anyway the idea is that you grab the GstBus and listen for the message:error signal there. If you get such one, give up on the track and continue with the next one. Stefan > > thanks, > > Jez > > On 2 March 2010 17:25, Kapil Agrawal <[hidden email]> wrote: >> IMHO you can write a application and catch the error signals on the Bus, and >> based on that skip the file. >> >> >> On Tue, Mar 2, 2010 at 6:48 AM, Jeremiah Rose >> <[hidden email]> wrote: >>> >>> hey all, >>> >>> I have a (python) program that runs through a playlist of audio files. >>> It uses decodebin2 and associated machinery. If a file cannot be >>> decoded, I wish to simply skip it, without complaint. How is this >>> done? >>> >>> >>> ------------------------------------------------------------------------------ >>> Download Intel® Parallel Studio Eval >>> Try the new software tools for yourself. Speed compiling, find bugs >>> proactively, and fine-tune applications for parallel performance. >>> See why Intel Parallel Studio got high marks during beta. >>> http://p.sf.net/sfu/intel-sw-dev >>> _______________________________________________ >>> gstreamer-devel mailing list >>> [hidden email] >>> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel >> >> >> >> -- >> http://www.linkedin.com/in/kapilagrawal >> >> ------------------------------------------------------------------------------ >> Download Intel® Parallel Studio Eval >> Try the new software tools for yourself. Speed compiling, find bugs >> proactively, and fine-tune applications for parallel performance. >> See why Intel Parallel Studio got high marks during beta. >> http://p.sf.net/sfu/intel-sw-dev >> _______________________________________________ >> gstreamer-devel mailing list >> [hidden email] >> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel >> >> > > ------------------------------------------------------------------------------ > Download Intel® Parallel Studio Eval > Try the new software tools for yourself. Speed compiling, find bugs > proactively, and fine-tune applications for parallel performance. > See why Intel Parallel Studio got high marks during beta. > http://p.sf.net/sfu/intel-sw-dev > _______________________________________________ > gstreamer-devel mailing list > [hidden email] > https://lists.sourceforge.net/lists/listinfo/gstreamer-devel ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel |
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