<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <meta name="Generator" content="Microsoft Word 14 (filtered medium)">  <div class="WordSection1"> <p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Wow… Yeah, it was right in front of me the whole time… <o:p></o:p></span></p> <p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p> <p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thanks for catching that for me! Works as expected now!<o:p></o:p></span></p> <p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p> <p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Tim Müller [via GStreamer-devel] [mailto:ml-node+<a href="/user/SendEmail.jtp?type=node&node=4667844&i=0" target="_top" rel="nofollow" link="external">[hidden email]</a>] <br> <b>Sent:</b> July-07-14 4:15 PM<br> <b>To:</b> David Weldon<br> <b>Subject:</b> Re: Interleave with Alsasink Pipeline Problem<o:p></o:p></span></p> <p class="MsoNormal"><o:p> </o:p></p> <p class="MsoNormal">On Mon, 2014-07-07 at 15:50 -0700, adweldon wrote: <br> <br> > In my application, I tried to set the channel-mask by doing the <br> > following below; which never seemed to work. Using your debug trap, I <br> > see now that channel_mask is set to 0x21 for some reason?? Even <br> > hard-coding it to 0x03 still still results in the wrong mask. Perhaps <br> > I'm setting the caps on the pad incorrectly... <br> <br> 0x21 is FRONT_LEFT | REAR_RIGHT, which is what your GValueArray code <br> does. Maybe you meant FRONT_RIGHT ? <br> <br> Regards <br> -Tim <o:p></o:p></p> <div> <p class="MsoNormal"><br> > <br> > Output: <br> > <br> > 0:00:00.705327387 12248 0xccf770 DEBUG GST_EVENT <br> > gstpad.c:5098:gst_pad_send_event_unchecked:<alsasink:sink> have event <br> > type caps event: 0x7f9be4003c70, time 99:99:99.999999999, seq-num 66, <br> > GstEventCaps, caps=(GstCaps)"audio/x-raw\,\ format\=\(string\)S16LE\,\ <br> > layout\=\(string\)interleaved\,\ rate\=\(int\)44100\,\ channels\=\(int <br> > \)2\,\ channel-mask\=\(bitmask\)0x0000000000000021"; <br> > 0:00:00.705378555 12248 0xccf770 DEBUG GST_CAPS <br> > gstutils.c:2852:gst_pad_query_accept_caps:<alsasink:sink> accept caps <br> > of audio/x-raw, format=(string)S16LE, layout=(string)interleaved, <br> > rate=(int)44100, channels=(int)2, <br> > channel-mask=(bitmask)0x0000000000000021 <br> > <br> > <br> > Code Snippet: <br> > <br> > interleave = gst_element_factory_make ("interleave", <br> > "interleave"); <br> > g_assert (interleave != NULL); <br> > <br> > //Create audiochannel position array... Compiled with ignore <br> > warnings flag becuase GValueArray is not supported any longer. <br> > GValueArray *positions = g_value_array_new (2); <br> > GValue val = { 0, }; <br> > g_value_init (&val, GST_TYPE_AUDIO_CHANNEL_POSITION); <br> > g_value_set_enum (&val, GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT); <br> > g_value_array_append (positions, &val); <br> > g_value_reset (&val); <br> > g_value_set_enum (&val, GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT); <br> > g_value_array_append (positions, &val); <br> > g_value_unset (&val); <br> > <br> > g_print ("setting channel positions\n"); <br> > g_object_set(G_OBJECT(interleave), "channel-positions-from-input", <br> > FALSE, NULL); <br> > g_object_set (interleave, "channel-positions", positions, NULL); <br> > <br> > guint64 channel_mask = GST_AUDIO_CHANNEL_POSITION_MASK(FRONT_LEFT) <br> > | GST_AUDIO_CHANNEL_POSITION_MASK(FRONT_RIGHT); <br> > g_print ("channel_mask: 0x%x\n", channel_mask); <br> > <br> > GstCaps *caps = gst_caps_new_simple( <br> > "audio/x-raw", <br> > "rate", G_TYPE_INT, 22000, <br> > "channels", G_TYPE_INT, 2, <br> > "channel-mask", GST_TYPE_BITMASK, channel_mask, <br> > NULL); <br> > <br> > GstPad *srcpad = gst_element_get_static_pad (interleave, "src"); <br> > g_assert(srcpad); <br> > gst_pad_set_caps(srcpad, caps ); <br> > <br> > <br> > <br> > <br> > ______________________________________________________________________ <br> > From: Tim Müller [via GStreamer-devel] [ml-node+[hidden email]] <br> > Sent: Monday, July 07, 2014 2:57 PM <br> > To: David Weldon <br> > Subject: Re: Interleave with Alsasink Pipeline Problem <br> > <br> > <br> > On Mon, 2014-07-07 at 11:04 -0700, adweldon wrote: <br> > <br> > Hi David, <br> > <br> > <br> > > I'm trying to create a fairly simple pipeline using test sources, <br> > the <br> > > interleave element and my alsasink. I'm essentially trying to have <br> > > different test sources interleaved into a multichannel stream, and <br> > played <br> > > out on the alsasink. We are starting with basic two channel stereo <br> > right <br> > > now, so nothing too complicated. <br> > > <br> > > The following pipeline using pulsesink, works: <br> > > gst-launch-1.0 -v interleave name=i ! pulsesink audiotestsrc <br> > name=t1 <br> > > volume=0.2 freq=133 ! queue ! i. audiotestsrc name=t2 volume=0.1 <br> > freq=200 ! <br> > > queue ! i. <br> > > <br> > > Replacing pulsesink with alsasink results in: <br> > > <br> > > WARN basesrc gstbasesrc.c:2933:gst_base_src_loop:<t1> error: <br> > Internal data <br> > > flow error. <br> > > WARN basesrc gstbasesrc.c:2933:gst_base_src_loop:<t1> error: <br> > streaming task <br> > > paused, reason not-negotiated (-4) <br> > > INFO GST_ERROR_SYSTEM <br> > gstelement.c:1834:gst_element_message_full:<t1> <br> > > posting message: Internal data flow error. <br> > > GST_ERROR_SYSTEM gstelement.c:1857:gst_element_message_full:<t1> <br> > posted <br> > > error message: Internal data flow error. <br> > > <br> > > Also: <br> > > WARN alsa conf.c:4694:snd_config_expand: alsalib error: Unknown <br> > parameters <br> > > {AES0 0x02 AES1 0x82 AES2 0x00 AES3 0x02} <br> > > WARN alsa pcm.c:2239:snd_pcm_open_noupdate: alsalib error: Unknown <br> > PCM <br> > > default:{AES0 0x02 AES1 0x82 AES2 0x00 AES3 0x02} <br> > <br> > <br> > <br> > I don't think this warning has anything to do with it. <br> > <br> > > Removing a source, the audio will play... I have created a custom <br> > app that <br> > > does basically the same thing as the launch pipeline, but it results <br> > in the <br> > > same errors. I have also tried playing with channel masks and what <br> > not in <br> > > the app to no avail... <br> > > <br> > > Any help is appreciated, <br> > <br> > The debug log should tell you what the problem is: <br> > <br> > $ GST_DEBUG=*:6 gst-launch-1.0 -v interleave name=i ! alsasink \ <br> > audiotestsrc name=t1 volume=0.2 freq=133 ! queue ! i. \ <br> > audiotestsrc name=t2 volume=0.1 freq=200 ! queue ! i. \ <br> > 2>&1 | grep --max-count=1 -B25 not-negotiated <br> > <br> > Problem appears to be that interleave output audio with 2 <br> > unpositioned <br> > channels (channels=2,channel-mask=0), whereas alsa wants left/right <br> > for <br> > channels=2 (i.e. channels=2,channel-mask=3). pulsesink doesn't seem <br> > to <br> > care that's why it works. <br> > <br> > This makes it work (i.e. forcing a left/right layout on the caps): <br> > <br> > gst-launch-1.0 -v interleave name=i ! capssetter <br> > caps='audio/x-raw,channel-mask=(bitmask)0x03' ! alsasink <br> > audiotestsrc <br> > name=t1 volume=0.2 freq=133 ! queue ! i. audiotestsrc name=t2 <br> > volume=0.1 freq=200 ! queue ! i. <br> > <br> > In code one would do that via interleave's properties I suppose, but <br> > with gst-launch this is the only way. <br> > <br> > Cheers <br> > -Tim <br> > <br> > <br> > <br> > _______________________________________________ <br> > gstreamer-devel mailing list <br> > <a href="/user/SendEmail.jtp?type=node&node=4667823&i=0" target="_top" rel="nofollow" link="external">[hidden email]</a> <br> > <a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_top" rel="nofollow" link="external"> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a><o:p></o:p></p> </div> <p class="MsoNormal" style="margin-bottom:12.0pt"><br> -- <br> Tim Müller, Centricular Ltd - <a href="http://www.centricular.com" target="_top" rel="nofollow" link="external"> http://www.centricular.com</a><br> <br> _______________________________________________ <br> gstreamer-devel mailing list <br> <a href="/user/SendEmail.jtp?type=node&node=4667823&i=1" target="_top" rel="nofollow" link="external">[hidden email]</a> <br> <a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_top" rel="nofollow" link="external">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a><br> <br> <o:p></o:p></p> <div class="MsoNormal" align="center" style="text-align:center"> <hr size="1" width="100%" noshade="" style="color:#CCCCCC" align="center"> </div> <div> <div> <p class="MsoNormal"><b><span style="font-size:9.0pt;font-family:"Tahoma","sans-serif";color:#444444">If you reply to this email, your message will be added to the discussion below:<o:p></o:p></span></b></p> </div> <p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Tahoma","sans-serif";color:#444444"><a href="http://gstreamer-devel.966125.n4.nabble.com/Interleave-with-Alsasink-Pipeline-Problem-tp4667819p4667823.html" target="_top" rel="nofollow" link="external">http://gstreamer-devel.966125.n4.nabble.com/Interleave-with-Alsasink-Pipeline-Problem-tp4667819p4667823.html</a> <o:p></o:p></span></p> </div> <div style="margin-top:4.8pt"> <p class="MsoNormal" style="line-height:18.0pt"><span style="font-size:8.5pt;font-family:"Tahoma","sans-serif";color:#666666">To unsubscribe from Interleave with Alsasink Pipeline Problem, <a href="" target="_top" rel="nofollow" link="external"> click here</a>.<br> <a href="http://gstreamer-devel.966125.n4.nabble.com/template/NamlServlet.jtp?macro=macro_viewer&id=instant_html%21nabble%3Aemail.naml&base=nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.view.web.template.NodeNamespace&breadcrumbs=notify_subscribers%21nabble%3Aemail.naml-instant_emails%21nabble%3Aemail.naml-send_instant_email%21nabble%3Aemail.naml" target="_top" rel="nofollow" link="external"><span style="font-size:7.0pt;font-family:"Times New Roman","serif"">NAML</span></a> <o:p></o:p></span></p> </div> </div> <br/><hr align="left" width="300" /> View this message in context: <a href="http://gstreamer-devel.966125.n4.nabble.com/Interleave-with-Alsasink-Pipeline-Problem-tp4667819p4667844.html">RE: Interleave with Alsasink Pipeline Problem</a><br/> Sent from the <a href="http://gstreamer-devel.966125.n4.nabble.com/">GStreamer-devel mailing list archive</a> at Nabble.com.<br/>