It's interesting that I am getting the opposite problem. Ie. stutters for wav and not for MP3. It looks like we were optimizing internal buffers for 44.1 kHz. However, 22.05kHz had problems with buffer-time=10000 and latency-time=100. Going back to the defaults 220xkHz worked but 44.1 was sensitive to activity on the system. I'll try the sync fix to see what happens on my device. Dennis ----- Original Message ---- From: Jan Schmidt <thaytan at noraisin.net> To: Raj Swaminathan <rajshyam at gmail.com> Cc: gstreamer-embedded at lists.sourceforge.net Sent: Friday, August 1, 2008 12:08:27 PM Subject: Re: noise and stuttering On Fri, 2008-08-01 at 13:51 -0500, Raj Swaminathan wrote: > > Can u also explain why the async fix helped ? ?It helps because it deactivates the clock-synching in the audiosink, which means that the file plays at the speed it manages to read, decode and output the samples -> that's slower than real-time in this case, which is why you're getting 'stuttering'. Measure how long the file takes to play with 'time' compared to the duration of the file. J. > > On Fri, Aug 1, 2008 at 1:23 PM, Raj Swaminathan <rajshyam at gmail.com> > wrote: > > Hey Dan, > > That worked ... its stuttering .. but keeps playing .... > thanks a ton ! > > osssink: wav file play fine > mp3 files, http links stutter but output sound > when buffer-time=1000 latency-time=100 sync=false > > > Is there any such fix for esdsink ?? > Are there more properties that can be modified to stop the > stuttering ?? > > regards, > raj > > > > > On Fri, Aug 1, 2008 at 12:52 PM, Daniel Charles > <dcharlesm at gmail.com> wrote: > Hi Raj, > > Have you tried sync=false in the osssink? I'm not > sure that this is > within your purposes but in some cases that removes > the glitches. > > Daniel. > > > On Fri, Aug 1, 2008 at 12:41 PM, Raj Swaminathan > <rajshyam at gmail.com> wrote: > > > > Hi everyone, > > > > Im having stuttering and stopping issues with > gstreamer on the OMAP 2430... > > I am using an NFS mounted file system via > ethernet ... > > > > osssink: WAV files play without an issue. > > mp3 files output sound and stop after > a few seconds if i set > > buffer-time=1000 and latency-time=100 > > mp3 files do not output sound without > the settings above. > > streaming music from http links do not > work under any > > setting. > > > > esdsink: WAV files do not play. > > mp3 files play nicely. > > streaming music from http links output > sound and stop after a > > few seconds. > > > > My sources: filesrc, souphttpsrc > > My decoders: wavparse, mad > > > > Ive experimented with placing queues before decoding > and before sending > > audio to the sink. Trying both ways or either/or, do > not impact the output > > signifcantly. > > Can anyone provide some suggestions? > > > > Thanks for your help so far. > > > > regards, > > raj > > > > On Thu, Jul 31, 2008 at 4:42 AM, Jan Schmidt > <thaytan at noraisin.net> wrote: > >> > >> On Wed, 2008-07-30 at 08:50 -0700, Dennis Fleming > wrote: > >> > First off: Thank to you and Zhoa-Lang for getting > back so quickly. > >> > I'm so busy I forgot my manners. > >> > > >> > Testing to find the parameters I have I used > decodebin, but in the > >> > program itself uses playbin with the same effect. > The only variation > >> > is that I set the sink property to alsasink since > that seems the only > >> > way to set buffer-time and latency-time > properties. Also, it seems > >> > counter-intuitive to me that an uncompressed WAV > file should have > >> > problems keeping up while MP3s with the same > sampling frequency and > >> > word size have none. And yet the artifacts are > indicative of dropped > >> > buffers. > >> > >> If the bottleneck is retrieving data from the input > location, then it's > >> entirely feasible. What's your data store? SD card, > NFS? A WAV file > >> might be 10 or more times more data to read and > cause read stalls, where > >> the smaller mp3 can be read in fine and decoded in > memory with no > >> further problems. > >> > >> J. > >> > >> > Dennis > >> > > >> > > >> > ----- Original Message ---- > >> > From: Thijs Vermeir <thijsvermeir at gmail.com> > >> > To: Dennis Fleming <arsantiqua at sbcglobal.net> > >> > Cc: gstreamer-embedded at lists.sourceforge.net > >> > Sent: Tuesday, July 29, 2008 3:59:30 PM > >> > Subject: Re: noise and stuttering > >> > > >> > Hi, > >> > > >> > On Tue, Jul 29, 2008 at 5:43 PM, Dennis Fleming > >> > <arsantiqua at sbcglobal.net> wrote: > >> > > The interesting thing is that uncompressed WAV > files are causing the > >> > problem > >> > > while MP3s were fixed by setting the > buffer-time and latency-time to > >> > values > >> > > smaller than found on a desktop. What would > adding a queue do to > >> > latency > >> > > through the system? > >> > > >> > There is no latency in this case because there > are no live-sources. > >> > [1] > >> > > >> > > Also, I suppose, that I will need to break up > the > >> > > playbin and create a pipeline myself, yes? > >> > > >> > playbin has the queue elements on the correct > location, no changes > >> > needed. > >> > You where already using a custom pipeline, no? > >> > > >> > Gr, > >> > > >> > [1] > >> > > >> > > http://webcvs.freedesktop.org/gstreamer/gstreamer/docs/design/draft-latency.txt?view=markup > >> > > >> > > > >> > > Dennis > >> > > > >> > > ----- Original Message ---- > >> > > From: Thijs Vermeir <thijsvermeir at gmail.com> > >> > > To: Zhao Liang-E3423C <E3423C at motorola.com> > >> > > Cc: Dennis Fleming <arsantiqua at sbcglobal.net>; > >> > > gstreamer-embedded at lists.sourceforge.net > >> > > Sent: Tuesday, July 29, 2008 2:46:42 AM > >> > > Subject: Re: noise and > stuttering > >> > > > >> > > Hi, > >> > > > >> > > On Tue, Jul 29, 2008 at 11:15 AM, Zhao > Liang-E3423C > >> > <E3423C at motorola.com> > >> > > wrote: > >> > >> What's the rootcause of noise and stuttering ? > >> > > > >> > > Now you are using only 1 thread for all the > elements and if the > >> > > filesrc or the decoder is too slow sometimes > >> > > you don't have time to catch up. By adding the > queue you put the > >> > sink > >> > > in another thread and now the filesrc+decoder > can > >> > > do some decoding in advance. > >> > > > >> > > Gr, > >> > > Thijs > >> > > > >> > >> > >> > >> For normal playback, it should not have > issues. If decoder didn't > >> > drop > >> > >> data, I think alsasink did it. > >> > >> By gstaudiosink mechanism, it will drop data > replaced with blank > >> > data when > >> > >> data is late. I guess the rootcause is that. > >> > >> > >> > >> If that, I have no ideas except adding a queue > before alsasink, and > >> > when > >> > >> queue is empty, pause the pipeline, it will > not cause dropout, but > >> > still > >> > >> discontinous. > >> > >> > >> > >> Zhao liang > >> > >> ________________________________ > >> > >> From: > gstreamer-embedded-bounces at lists.sourceforge.net > >> > >> > [mailto:gstreamer-embedded-bounces at lists.sourceforge.net] On Behalf > >> > Of > >> > >> Dennis Fleming > >> > >> Sent: Tuesday, July 29, 2008 4:37 AM > >> > >> To: gstreamer-embedded at lists.sourceforge.net > >> > >> Subject: noise and stuttering > >> > >> > >> > >> I'm trying to create an audio player on an > IMX31 target and I've > >> > found a > >> > >> discrepancy in the output of various formats. > If I send MP3 data I > >> > have > >> > >> to > >> > >> set the buffer-time and latency-time to 10000 > and 100 respectively > >> > to play > >> > >> without severe dropouts. However WAV files > still have drop-out at > >> > a > >> > >> consistent rate (about 1 per 10 sec). Are > there some general > >> > features I'm > >> > >> missing or is there some guidance on the > buffer-time/latency time > >> > that > >> > >> would > >> > >> account for this difference? > >> > >> > >> > >> Linux 2.6.22.19 > >> > >> gstreamer 0.10.17 (open-embedded) > >> > >> gst-launch filesrc location=<file> ! > decodebin ! alsasink > >> > >> buffer-time=10000 > >> > >> latency-time=100 > >> > >> > >> > >> Dennis > >> > >> > >> > >> > >> > > >> > > ------------------------------------------------------------------------- > >> > >> This SF.Net email is sponsored by the Moblin > Your Move Developer's > >> > >> challenge > >> > >> Build the coolest Linux based applications > with Moblin SDK & win > >> > great > >> > >> prizes > >> > >> Grand prize is a trip for two to an Open > Source event anywhere in > >> > the > >> > >> world > >> > >> > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > >> > >> > _______________________________________________ > >> > >> Gstreamer-embedded mailing list > >> > >> Gstreamer-embedded at lists.sourceforge.net > >> > >> > https://lists.sourceforge.net/lists/listinfo/gstreamer-embedded > >> > >> > >> > >> > >> > > > >> > > >> > > >> > > ------------------------------------------------------------------------- > >> > This SF.Net email is sponsored by the Moblin Your > Move Developer's > >> > challenge > >> > Build the coolest Linux based applications with > Moblin SDK & win great > >> > prizes > >> > Grand prize is a trip for two to an Open Source > event anywhere in the > >> > world > >> > > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > >> > _______________________________________________ > Gstreamer-embedded > >> > mailing list > Gstreamer-embedded at lists.sourceforge.net > >> > > https://lists.sourceforge.net/lists/listinfo/gstreamer-embedded > >> -- > >> Jan Schmidt <thaytan at noraisin.net> > >> > >> > >> > ------------------------------------------------------------------------- > >> This SF.Net email is sponsored by the Moblin Your > Move Developer's > >> challenge > >> Build the coolest Linux based applications with > Moblin SDK & win great > >> prizes > >> Grand prize is a trip for two to an Open Source > event anywhere in the > >> world > >> > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > >> _______________________________________________ > >> Gstreamer-embedded mailing list > >> Gstreamer-embedded at lists.sourceforge.net > >> > https://lists.sourceforge.net/lists/listinfo/gstreamer-embedded > > > > > > > ------------------------------------------------------------------------- > > This SF.Net email is sponsored by the Moblin Your > Move Developer's challenge > > Build the coolest Linux based applications with > Moblin SDK & win great > > prizes > > Grand prize is a trip for two to an Open Source > event anywhere in the world > > > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > > _______________________________________________ > > Gstreamer-embedded mailing list > > Gstreamer-embedded at lists.sourceforge.net > > > https://lists.sourceforge.net/lists/listinfo/gstreamer-embedded > > > > > > > > > > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's challenge > Build the coolest Linux based applications with Moblin SDK & win great prizes > Grand prize is a trip for two to an Open Source event anywhere in the world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > _______________________________________________ Gstreamer-embedded mailing list Gstreamer-embedded at lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gstreamer-embedded -- Jan Schmidt <thaytan at noraisin.net> ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Gstreamer-embedded mailing list Gstreamer-embedded at lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gstreamer-embedded -------------- next part -------------- An HTML attachment was scrubbed... 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