problem with pa_stream_make_writeable_size(
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problem with pa_stream_make_writeable_size(
 
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Hello Everyone,
So I've built an application based on gstreamer that's been working well so far. I've recently run into an issue that I don't understand. I'm hoping someone here will know what I should look at. So I read from an IP camera via rtspsrc. It sends video in MP4 format and Audio in AAC. We're running a beta with our client and recently after installing it on location I've run into issues with one location. After 5-9 seconds I get pa_stream_make_writeable_size() failed connection terminated this causes the stream to pause if I'm recording, but not if I'm just viewing. After taking a look I found the following differences. The cameras that worked were set to have audio at 96Kbps vs 16Kbps. I only noticed when I compared the caps that each pad-added pad from the decoder had. The one that has the problem was: application/x-rtp, media=(string)audio, payload=(int)97, clock-rate=(int)16000, encoding-name=(string)MPEG4-GENERIC, encoding-params=(string)2, streamtype=(string)5, profile-level-id=(string)15, mode=(string)AAC-hbr, config=(string)1410, sizelength=(string)13, indexlength=(string)3, indexdeltalength=(string)3, ctsdeltalength=(string)0, dtsdeltalength=(string)0, a-charset=(string)Shift_JIS, a-etag=(string)1234567890, clock-base=(uint)0, seqnum-base=(uint)0, npt-start=(guint64)0, play-speed=(double)1, play-scale=(double)1; and the one that worked: application/x-rtp, media=(string)audio, payload=(int)97, clock-rate=(int)44100, encoding-name=(string)MPEG4-GENERIC, encoding-params=(string)2, streamtype=(string)5, profile-level-id=(string)15, mode=(string)AAC-hbr, config=(string)1210, sizelength=(string)13, indexlength=(string)3, indexdeltalength=(string)3, ctsdeltalength=(string)0, dtsdeltalength=(string)0, a-charset=(string)Shift_JIS, a-etag=(string)1234567890, clock-base=(uint)0, seqnum-base=(uint)0, npt-start=(guint64)0, play-speed=(double)1, play-scale=(double)1; A diff of the two was what tipped me off to the difference between the two cameras: @@ -1,13 +1,13 @@ Structure application/x-rtp, media=(string)audio, payload=(int)97, -clock-rate=(int)16000, +clock-rate=(int)44100, encoding-name=(string)MPEG4-GENERIC, encoding-params=(string)2, streamtype=(string)5, profile-level-id=(string)15, mode=(string)AAC-hbr, -config=(string)1410, +config=(string)1210, sizelength=(string)13, indexlength=(string)3, indexdeltalength=(string)3, Once I changed the settings on the camera it started working again, lowering the bitrate causes the error again. So I'm at a total loss as to what the error I get about pa_stream_make_writeable_size() has to do with the audio bitrate. I'm *really* hoping someone could shed some light on this so I can understand what the issue is and how to work around it. -- Nathanael d. Noblet ------------------------------------------------------------------------------ Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsight-sfd2d _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel |
Re: problem with pa_stream_make_writeable_size(
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> So I read from an IP camera via rtspsrc. It sends video in MP4 format
> and Audio in AAC. We're running a beta with our client and recently > after installing it on location I've run into issues with one location. > After 5-9 seconds I get > > pa_stream_make_writeable_size() failed connection terminated This is an issue in the connection with PulseAudio. Since it's PCM at that point, I don't think it's an issue with the bitrate of the AAC payload. Can you try and capture the pulseaudio log (pulseaudio -vvvv 2> log.txt). Don't send the log, which can be pretty long, just a link on something like pastebin. -Pierre ------------------------------------------------------------------------------ Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsight-sfd2d _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel |
Re: problem with pa_stream_make_writeable_size(
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On 01/26/2011 10:21 AM, pl bossart wrote:
>> So I read from an IP camera via rtspsrc. It sends video in MP4 format >> and Audio in AAC. We're running a beta with our client and recently >> after installing it on location I've run into issues with one location. >> After 5-9 seconds I get >> >> pa_stream_make_writeable_size() failed connection terminated > > This is an issue in the connection with PulseAudio. Since it's PCM at > that point, I don't think it's an issue with the bitrate of the AAC > payload. > Can you try and capture the pulseaudio log (pulseaudio -vvvv 2> > log.txt). Don't send the log, which can be pretty long, just a link on > something like pastebin. Yeah I can't seem to figure out what it could be either. I do have SELinux rules in place, however the messages don't stop when SELinux is disabled. Also in testing, my x86_64 box doesn't exhibit the same behaviour *nearly* as often/reliably as the little netbooks do. In anycase, here's the output from a pulseaudio session where I did get this message.... http://fpaste.org/j0Jo/ I don't see anything obvious but with that many lines I really didn't have a clue what to look for at all. Ask for whatever output you need and I'll do my best to make it happen. Since you feel it is permissions based I'll also explain that my app is setgid in the areas that are starting the gstreamer threads. So it is quite possible that for one reason or another gstreamer/pulse interaction is having issues, however they do go away with higher bitrates which is really odd to me... Perhaps the bitrates/clock-rate cause a change request or something that doesn't happen when they are higher but I'm really at a loss. I may try to debug using gdb to see if I can get a bt... Thanks for the help thus far, I'd really like to understand what is going on... -- Nathanael d. Noblet ------------------------------------------------------------------------------ Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsight-sfd2d _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel |
Re: problem with pa_stream_make_writeable_size(
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On 2011-01-27 07:55, Nathanael D. Noblet wrote:
> On 01/26/2011 10:21 AM, pl bossart wrote: >>> So I read from an IP camera via rtspsrc. It sends video in MP4 format >>> and Audio in AAC. We're running a beta with our client and recently >>> after installing it on location I've run into issues with one location. >>> After 5-9 seconds I get >>> >>> pa_stream_make_writeable_size() failed connection terminated >> >> This is an issue in the connection with PulseAudio. Since it's PCM at >> that point, I don't think it's an issue with the bitrate of the AAC >> payload. >> Can you try and capture the pulseaudio log (pulseaudio -vvvv 2> >> log.txt). Don't send the log, which can be pretty long, just a link on >> something like pastebin. > > Yeah I can't seem to figure out what it could be either. I do have > SELinux rules in place, however the messages don't stop when SELinux is > disabled. Also in testing, my x86_64 box doesn't exhibit the same > behaviour *nearly* as often/reliably as the little netbooks do. In > anycase, here's the output from a pulseaudio session where I did get > this message.... > > http://fpaste.org/j0Jo/ > > > I don't see anything obvious but with that many lines I really didn't > have a clue what to look for at all. Ask for whatever output you need > and I'll do my best to make it happen. > > Since you feel it is permissions based I'll also explain that my app is > setgid in the areas that are starting the gstreamer threads. So it is > quite possible that for one reason or another gstreamer/pulse > interaction is having issues, however they do go away with higher > bitrates which is really odd to me... Perhaps the bitrates/clock-rate > cause a change request or something that doesn't happen when they are > higher but I'm really at a loss. I may try to debug using gdb to see if > I can get a bt... > > Thanks for the help thus far, I'd really like to understand what is > going on... PulseAudio eats too much CPU in RT-prio time and ends up getting killed by the kernel. One way to counteract this is for gstreamer to send few big packets instead of many small ones, so soes the patch I posted here recently help to resolve this symptom? See http://gstreamer-devel.966125.n4.nabble.com/attachment/3207515/0/default-buffer-size.patch -- David Henningsson, Canonical Ltd. http://launchpad.net/~diwic ------------------------------------------------------------------------------ Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsight-sfd2d _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel |
Re: problem with pa_stream_make_writeable_size(
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On 01/27/2011 03:36 AM, David Henningsson wrote:
>> Thanks for the help thus far, I'd really like to understand what is >> going on... > > PulseAudio eats too much CPU in RT-prio time and ends up getting killed > by the kernel. One way to counteract this is for gstreamer to send few > big packets instead of many small ones, so soes the patch I posted here > recently help to resolve this symptom? > > See > http://gstreamer-devel.966125.n4.nabble.com/attachment/3207515/0/default-buffer-size.patch I don't think pulse is dying as I've killed pulse manually and the error message I get is different, however I will patch my copy with the above and let you know if it helps at all. -- Nathanael d. Noblet ------------------------------------------------------------------------------ Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsight-sfd2d _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel |
Re: problem with pa_stream_make_writeable_size(
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In reply to this post by David Henningsson
On 01/27/2011 03:36 AM, David Henningsson wrote:
> PulseAudio eats too much CPU in RT-prio time and ends up getting killed > by the kernel. One way to counteract this is for gstreamer to send few > big packets instead of many small ones, so soes the patch I posted here > recently help to resolve this symptom? > > See > http://gstreamer-devel.966125.n4.nabble.com/attachment/3207515/0/default-buffer-size.patch This does indeed fix it. Patching the latest release with that patch, and upgrading to it I don't see the error anymore, downgrading and its back. So is there a bug someplace I can voice my experience thus far? ------------------------------------------------------------------------------ Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsight-sfd2d _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel |
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