[FFmpeg-user] generating jpgs and sound at the same time problem with specific inputs

[Kostas Psimoulis]

Is there a way to skip analyzing duration and still get the information about the audio stream ? I don't really need to know the duration because it's a live stream, the duration is unlimited. I think what is happening it's because there is no information in the metadata, it's trying to probe in order to get some information and there is not enough time to generate the jpgs. What about if I do ffprobe first and I already know the information about the video and audio codec, can I specify them in ffmpeg and still use analyzeduration 0 ? Or find another way that I can set a different number to analyzeduration and still be able to generate jpgs

> From: rondinos at hotmail.com
> To: ffmpeg-user at ffmpeg.org
> Date: Tue, 26 Feb 2013 05:49:45 +0000
> Subject: Re: [FFmpeg-user] generating jpgs and sound at the same time problem with specific inputs
> 
> 
> Hello, I am just replying to the e-mail, I don't know why the line breaks are not displayed correctly. I don't think it hangs, I think it's just takes too long to timeout. I am guessing it's trying to analyze the duration but it doesn't have enough information to do it. Perhaps I can try to do an strace if that will be helpful.
> 
> > To: ffmpeg-user at ffmpeg.org
> > From: cehoyos at ag.or.at
> > Date: Tue, 26 Feb 2013 00:17:38 +0000
> > Subject: Re: [FFmpeg-user] generating jpgs and sound at the same time	problem with specific inputs
> > 
> > Kostas Psimoulis <rondinos <at> hotmail.com> writes:
> > 
> > > Thank you for the response Carl. I noticed that whenever 
> > > I use analyzeduration != 0 ffmpeg can sit there and
> > > wait over 20 mins with no response.
> > 
> > Do I understand you correctly that the following line just 
> > hangs?
> > $ ffmpeg -i 'rtmp://192.168.0.15:1935/live/Cam1/flv:s_Cam1?tcp live=1'
> > 
> > Can you provide a backtrace?
> > 
> > Please do not top-post here, Carl Eugen
> > 
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