Hi, gstreamer-devel:     I have not Mac so I cannot test your problem. I'd like to get one but Mac is expensive in China and seems that scratchbox cannot be installed on Mac. I need a cross-compile environment so now Linux is the prefer OS for me.     Sjoerd, Maybe you should run this pipeline with root privilege? In Linux, we use `sudo' to get root permission. Eric Zhang <div class="gmail_quote">2008/11/13 Sjoerd Op 't Land <<a href="mailto:sjoerd@intercue.nl">sjoerd@intercue.nl</a>> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hello all, Meanwhile I read some more on autoplugging and capfilters, but I still can't seem to get this pipeline to work. To determine whether or not this is a bug, could anyone using a Mac try these pipelines and report on the results? For example, does it work under 10.4? I also mailed with the creator of the plugin, but he wrote: > Please send to the gstreamer-devel mailing list. > > Zaheer And so I did... Thanks in advance for any input, Sjoerd Op 't Land Op 12 nov 2008, om 09:11 heeft Sjoerd Op 't Land het volgende geschreven: <div><div></div><div class="Wj3C7c"> > Hi Eric, > > Thanks for your quick response. In fact my problem is with > osxaudiosrc, so let's focus on that element. In the source code of > osxaudiosrc, I found this "Example launch line" > >   gst-launch -v -m osxaudiosrc ! fakesink > > Which generates (...)osxaudiosrc0: Could not negotiate format. > Apparently, either (a) there is no format that satisfies the pads of > osxaudiosrc and fakesink, or (b) there are multiple formats that > satisfy the pads of osxaudiosrc and fakesink (is this reasoning > correct?). Adding audioconvert ! audioresample does not help: > >   gst-launch -v -m osxaudiosrc ! audioconvert ! audioresample ! > fakesink > > Also results in (...)osxaudiosrc0: Could not negotiate format. Perhaps > I should force the format: > >   gst-launch -v -m osxaudiosrc ! audioconvert ! audioresample ! audio/ > x-raw-float,rate=44100,channels=2,width=32,depth=32 ! fakesink > >   gst-launch -v -m osxaudiosrc ! audio/x-raw- > float,rate=44100,channels=2,width=32,depth=32 ! audioconvert ! > audioresample ! audio/x-raw- > float,rate=44100,channels=2,width=32,depth=32 ! fakesink > > Both result in (...)osxaudiosrc0: Could not negotiate format. For > completeness I added the complete output at the bottom of this e-mail. > > Thanks in advance for any suggestions, > Sjoerd Op 't Land > > Op 12 nov 2008, om 02:29 heeft Eric Zhang het volgende geschreven: > >> Hi, gstreamer-devel: >> >>    Actually, I don't get what your problem is. Maybe this is >> because a language limitation. if you wanna use osxaudiosink, add >> converter or any other filter elements into your pipeline, otherwise >> the not-negotiation error occurs. This is the sample pipeline from >> osxaudiosink's manual: >> >> gst-launch -v filesrc location=sine.ogg ! oggdemux ! vorbisdec ! >> audioconvert ! audioresample ! osxaudiosink >> >>    I think your can read gstreamer developer guide and maybe you >> will figure out the answer yourself while reading it. >> >> Eric Zhang >> >> >> 2008/11/11 Sjoerd Op 't Land <<a href="mailto:sjoerd@intercue.nl">sjoerd@intercue.nl</a>> >> Hello all, >> >> I am new to gstreamer, so please forgive me if the errors encountered >> are due to my inexperience. I am running Mac OS 10.5.5 on a MacBook >> Core 2 Duo and I compiled gstreamer, gst-plugins-base and gst- >> plugins- >> good from cvs (<a href="http://0.10.21.1" target="_blank">0.10.21.1</a>). >> >> To start off, I wanted to create an audio loopthrough. First, I tried >> to get the output to work. With a little modification, I was able to >> produce a sine: >> >>> gst-launch audiotestsrc ! audioconvert ! audio/x-raw- >> float,channels=2,width=32,depth=32 ! osxaudiosink >> >> (My first attempt failed, I don't know whether this is expected >> behaviour: >>> gst-launch audiotestsrc ! osxaudiosink >> Setting pipeline to PAUSED ... >> Pipeline is PREROLLING ... >> ERROR: from element /GstPipeline:pipeline0/ >> GstAudioTestSrc:audiotestsrc0: Internal data flow error. >> Additional debug info: >> gstbasesrc.c(2292): gst_base_src_loop (): /GstPipeline:pipeline0/ >> GstAudioTestSrc:audiotestsrc0: >> streaming task paused, reason not-negotiated (-4) >> ERROR: pipeline doesn't want to preroll. >> Setting pipeline to NULL ... >> FREEING pipeline ...) >> >> The reason I am mailing you, is that I can't seem to get osxaudiosrc >> to function, tried various stream types and convert/resample options. >> The command line suggested in the source code unfortunately does not >> function: >> >>> gst-launch -v -m osxaudiosrc ! fakesink >> Setting pipeline to PAUSED ... >> ERROR: Pipeline doesn't want to pause. >> Got Message from element "fakesink0" (state-changed): >> GstMessageState, >> old-state=(GstState)GST_STATE_NULL, new- >> state=(GstState)GST_STATE_READY, pending- >> state=(GstState)GST_STATE_VOID_PENDING; >> Got Message from element "osxaudiosrc0" (state-changed): >> GstMessageState, old-state=(GstState)GST_STATE_NULL, new- >> state=(GstState)GST_STATE_READY, pending- >> state=(GstState)GST_STATE_VOID_PENDING; >> Got Message from element "pipeline0" (state-changed): >> GstMessageState, >> old-state=(GstState)GST_STATE_NULL, new- >> state=(GstState)GST_STATE_READY, pending- >> state=(GstState)GST_STATE_PAUSED; >> Got Message from element "osxaudiosrc0" (error): GstMessageError, >> gerror=(GstGError)(NULL), debug=(string)"gstbasesrc.c$2484$:\ >> gst_base_src_start\ :\ /GstPipeline:pipeline0/ >> GstOsxAudioSrc:osxaudiosrc0:\012Check\ your\ filtered\ caps\,\ if\ >> any"; >> ERROR: from element /GstPipeline:pipeline0/ >> GstOsxAudioSrc:osxaudiosrc0: Could not negotiate format >> Additional debug info: >> gstbasesrc.c(2484): gst_base_src_start (): /GstPipeline:pipeline0/ >> GstOsxAudioSrc:osxaudiosrc0: >> Check your filtered caps, if any >> Setting pipeline to NULL ... >> FREEING pipeline ... >> >> Thanks in advance for any suggestions. Again, I apologise beforehand >> if this is an error of mine, due to my inexperience with GStreamer. >> >> Best regards, >> Sjoerd Op 't Land > > ========= Output listing 1 ========= > $ gst-launch -v -m osxaudiosrc ! fakesink > Setting pipeline to PAUSED ... > ERROR: Pipeline doesn't want to pause. > Got Message from element "fakesink0" (state-changed): GstMessageState, > old-state=(GstState)GST_STATE_NULL, new- > state=(GstState)GST_STATE_READY, pending- > state=(GstState)GST_STATE_VOID_PENDING; > Got Message from element "osxaudiosrc0" (state-changed): > GstMessageState, old-state=(GstState)GST_STATE_NULL, new- > state=(GstState)GST_STATE_READY, pending- > state=(GstState)GST_STATE_VOID_PENDING; > Got Message from element "pipeline0" (state-changed): GstMessageState, > old-state=(GstState)GST_STATE_NULL, new- > state=(GstState)GST_STATE_READY, pending- > state=(GstState)GST_STATE_PAUSED; > Got Message from element "osxaudiosrc0" (error): GstMessageError, > gerror=(GstGError)(NULL), debug=(string)"gstbasesrc.c$2484$:\ > gst_base_src_start\ :\ /GstPipeline:pipeline0/ > GstOsxAudioSrc:osxaudiosrc0:\012Check\ your\ filtered\ caps\,\ if\ > any"; > ERROR: from element /GstPipeline:pipeline0/ > GstOsxAudioSrc:osxaudiosrc0: Could not negotiate format > Additional debug info: > gstbasesrc.c(2484): gst_base_src_start (): /GstPipeline:pipeline0/ > GstOsxAudioSrc:osxaudiosrc0: > Check your filtered caps, if any > Setting pipeline to NULL ... > FREEING pipeline ... > > ========= Output listing 2 ========= > $ gst-launch -v -m osxaudiosrc ! audioconvert ! audioresample ! > fakesink > Setting pipeline to PAUSED ... > ERROR: Pipeline doesn't want to pause. > Got Message from element "fakesink0" (state-changed): GstMessageState, > old-state=(GstState)GST_STATE_NULL, new- > state=(GstState)GST_STATE_READY, pending- > state=(GstState)GST_STATE_VOID_PENDING; > Got Message from element "audioresample0" (state-changed): > GstMessageState, old-state=(GstState)GST_STATE_NULL, new- > state=(GstState)GST_STATE_READY, pending- > state=(GstState)GST_STATE_VOID_PENDING; > Got Message from element "audioconvert0" (state-changed): > GstMessageState, old-state=(GstState)GST_STATE_NULL, new- > state=(GstState)GST_STATE_READY, pending- > state=(GstState)GST_STATE_VOID_PENDING; > Got Message from element "osxaudiosrc0" (state-changed): > GstMessageState, old-state=(GstState)GST_STATE_NULL, new- > state=(GstState)GST_STATE_READY, pending- > state=(GstState)GST_STATE_VOID_PENDING; > Got Message from element "pipeline0" (state-changed): GstMessageState, > old-state=(GstState)GST_STATE_NULL, new- > state=(GstState)GST_STATE_READY, pending- > state=(GstState)GST_STATE_PAUSED; > Got Message from element "audioresample0" (state-changed): > GstMessageState, old-state=(GstState)GST_STATE_READY, new- > state=(GstState)GST_STATE_PAUSED, pending- > state=(GstState)GST_STATE_VOID_PENDING; > Got Message from element "audioconvert0" (state-changed): > GstMessageState, old-state=(GstState)GST_STATE_READY, new- > state=(GstState)GST_STATE_PAUSED, pending- > state=(GstState)GST_STATE_VOID_PENDING; > Got Message from element "osxaudiosrc0" (error): GstMessageError, > gerror=(GstGError)(NULL), debug=(string)"gstbasesrc.c$2484$:\ > gst_base_src_start\ :\ /GstPipeline:pipeline0/ > GstOsxAudioSrc:osxaudiosrc0:\012Check\ your\ filtered\ caps\,\ if\ > any"; > ERROR: from element /GstPipeline:pipeline0/ > GstOsxAudioSrc:osxaudiosrc0: Could not negotiate format > Additional debug info: > gstbasesrc.c(2484): gst_base_src_start (): /GstPipeline:pipeline0/ > GstOsxAudioSrc:osxaudiosrc0: > Check your filtered caps, if any > Setting pipeline to NULL ... > FREEING pipeline ... > > ========= Output listing 3 ========= > $ gst-launch -v -m osxaudiosrc ! audioconvert ! audioresample ! audio/ > x-raw-float,rate=44100,channels=2,width=32,depth=32 ! fakesink > Setting pipeline to PAUSED ... > ERROR: Pipeline doesn't want to pause. > Got Message from element "fakesink0" (state-changed): GstMessageState, > old-state=(GstState)GST_STATE_NULL, new- > state=(GstState)GST_STATE_READY, pending- > state=(GstState)GST_STATE_VOID_PENDING; > Got Message from element "capsfilter0" (state-changed): > GstMessageState, old-state=(GstState)GST_STATE_NULL, new- > state=(GstState)GST_STATE_READY, pending- > state=(GstState)GST_STATE_VOID_PENDING; > Got Message from element "audioresample0" (state-changed): > GstMessageState, old-state=(GstState)GST_STATE_NULL, new- > state=(GstState)GST_STATE_READY, pending- > state=(GstState)GST_STATE_VOID_PENDING; > Got Message from element "audioconvert0" (state-changed): > GstMessageState, old-state=(GstState)GST_STATE_NULL, new- > state=(GstState)GST_STATE_READY, pending- > state=(GstState)GST_STATE_VOID_PENDING; > Got Message from element "osxaudiosrc0" (state-changed): > GstMessageState, old-state=(GstState)GST_STATE_NULL, new- > state=(GstState)GST_STATE_READY, pending- > state=(GstState)GST_STATE_VOID_PENDING; > Got Message from element "pipeline0" (state-changed): GstMessageState, > old-state=(GstState)GST_STATE_NULL, new- > state=(GstState)GST_STATE_READY, pending- > state=(GstState)GST_STATE_PAUSED; > Got Message from element "capsfilter0" (state-changed): > GstMessageState, old-state=(GstState)GST_STATE_READY, new- > state=(GstState)GST_STATE_PAUSED, pending- > state=(GstState)GST_STATE_VOID_PENDING; > Got Message from element "audioresample0" (state-changed): > GstMessageState, old-state=(GstState)GST_STATE_READY, new- > state=(GstState)GST_STATE_PAUSED, pending- > state=(GstState)GST_STATE_VOID_PENDING; > Got Message from element "audioconvert0" (state-changed): > GstMessageState, old-state=(GstState)GST_STATE_READY, new- > state=(GstState)GST_STATE_PAUSED, pending- > state=(GstState)GST_STATE_VOID_PENDING; > Got Message from element "osxaudiosrc0" (error): GstMessageError, > gerror=(GstGError)(NULL), debug=(string)"gstbasesrc.c$2484$:\ > gst_base_src_start\ :\ /GstPipeline:pipeline0/ > GstOsxAudioSrc:osxaudiosrc0:\012Check\ your\ filtered\ caps\,\ if\ > any"; > ERROR: from element /GstPipeline:pipeline0/ > GstOsxAudioSrc:osxaudiosrc0: Could not negotiate format > Additional debug info: > gstbasesrc.c(2484): gst_base_src_start (): /GstPipeline:pipeline0/ > GstOsxAudioSrc:osxaudiosrc0: > Check your filtered caps, if any > Setting pipeline to NULL ... > FREEING pipeline ... > > ========= Output listing 4 ========= > $ gst-launch -v -m osxaudiosrc ! audio/x-raw- > float,rate=44100,channels=2,width=32,depth=32 ! audioconvert ! > audioresample ! audio/x-raw- > float,rate=44100,channels=2,width=32,depth=32 ! fakesink > Setting pipeline to PAUSED ... > ERROR: Pipeline doesn't want to pause. > Got Message from element "fakesink0" (state-changed): GstMessageState, > old-state=(GstState)GST_STATE_NULL, new- > state=(GstState)GST_STATE_READY, pending- > state=(GstState)GST_STATE_VOID_PENDING; > Got Message from element "capsfilter1" (state-changed): > GstMessageState, old-state=(GstState)GST_STATE_NULL, new- > state=(GstState)GST_STATE_READY, pending- > state=(GstState)GST_STATE_VOID_PENDING; > Got Message from element "audioresample0" (state-changed): > GstMessageState, old-state=(GstState)GST_STATE_NULL, new- > state=(GstState)GST_STATE_READY, pending- > state=(GstState)GST_STATE_VOID_PENDING; > Got Message from element "audioconvert0" (state-changed): > GstMessageState, old-state=(GstState)GST_STATE_NULL, new- > state=(GstState)GST_STATE_READY, pending- > state=(GstState)GST_STATE_VOID_PENDING; > Got Message from element "capsfilter0" (state-changed): > GstMessageState, old-state=(GstState)GST_STATE_NULL, new- > state=(GstState)GST_STATE_READY, pending- > state=(GstState)GST_STATE_VOID_PENDING; > Got Message from element "osxaudiosrc0" (state-changed): > GstMessageState, old-state=(GstState)GST_STATE_NULL, new- > state=(GstState)GST_STATE_READY, pending- > state=(GstState)GST_STATE_VOID_PENDING; > Got Message from element "pipeline0" (state-changed): GstMessageState, > old-state=(GstState)GST_STATE_NULL, new- > state=(GstState)GST_STATE_READY, pending- > state=(GstState)GST_STATE_PAUSED; > Got Message from element "capsfilter1" (state-changed): > GstMessageState, old-state=(GstState)GST_STATE_READY, new- > state=(GstState)GST_STATE_PAUSED, pending- > state=(GstState)GST_STATE_VOID_PENDING; > Got Message from element "audioresample0" (state-changed): > GstMessageState, old-state=(GstState)GST_STATE_READY, new- > state=(GstState)GST_STATE_PAUSED, pending- > state=(GstState)GST_STATE_VOID_PENDING; > Got Message from element "audioconvert0" (state-changed): > GstMessageState, old-state=(GstState)GST_STATE_READY, new- > state=(GstState)GST_STATE_PAUSED, pending- > state=(GstState)GST_STATE_VOID_PENDING; > Got Message from element "capsfilter0" (state-changed): > GstMessageState, old-state=(GstState)GST_STATE_READY, new- > state=(GstState)GST_STATE_PAUSED, pending- > state=(GstState)GST_STATE_VOID_PENDING; > Got Message from element "osxaudiosrc0" (error): GstMessageError, > gerror=(GstGError)(NULL), debug=(string)"gstbasesrc.c$2484$:\ > gst_base_src_start\ :\ /GstPipeline:pipeline0/ > GstOsxAudioSrc:osxaudiosrc0:\012Check\ your\ filtered\ caps\,\ if\ > any"; > ERROR: from element /GstPipeline:pipeline0/ > GstOsxAudioSrc:osxaudiosrc0: Could not negotiate format > Additional debug info: > gstbasesrc.c(2484): gst_base_src_start (): /GstPipeline:pipeline0/ > GstOsxAudioSrc:osxaudiosrc0: > Check your filtered caps, if any > Setting pipeline to NULL ... > FREEING pipeline ... > > > > > ------------------------------------------------------------------------- > 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 > <a href="http://moblin-contest.org/redirect.php?banner_id=100&url=/" target="_blank">http://moblin-contest.org/redirect.php?banner_id=100&url=/</a> > _______________________________________________ > gstreamer-devel mailing list > <a href="mailto:gstreamer-devel@lists.sourceforge.net">gstreamer-devel@lists.sourceforge.net</a> > <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel" target="_blank">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a> > ------------------------------------------------------------------------- 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 <a href="http://moblin-contest.org/redirect.php?banner_id=100&url=/" target="_blank">http://moblin-contest.org/redirect.php?banner_id=100&url=/</a> _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.sourceforge.net">gstreamer-devel@lists.sourceforge.net</a> <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel" target="_blank">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a> </div></div></blockquote></div>