Hi Colin I changed the sample role from proplist in play_beep( ) below: static void play_beep(pa_core *core) { uint32_t idx; pa_proplist *pl = pa_proplist_new (); pa_proplist_sets(pl, PA_PROP_MEDIA_ROLE, "test"); pa_log ("DBG: %s: %d\n", __func__, __LINE__); pa_scache_play_item(core, "beep", "alsa_output.hw_0_0", PA_VOLUME_NORM, pl, &idx); } Here are the logs for segmentation fault: D: module-augment-properties.c: Looking for .desktop file for gst-launch-0.10 D: memblockq.c: memblockq requested: maxlength=33554432, tlength=0, base=4, prebuf=0, minreq=1 maxrewind=0 D: memblockq.c: memblockq sanitized: maxlength=33554432, tlength=33554432, base=4, prebuf=0, minreq=4 maxrewind=0 I: sink-input.c: Created input 1 "Playback Stream" on alsa_output.hw_0_0 with sample spec s16le 2ch 44100Hz and channel map front-left,front-right I: sink-input.c: media.role = "event" I: sink-input.c: <a href="http://media.name">media.name</a> = "Playback Stream" I: sink-input.c: <a href="http://application.name">application.name</a> = "gst-launch-0.10" I: sink-input.c: native-protocol.peer = "UNIX socket client" I: sink-input.c: native-protocol.version = "16" I: sink-input.c: <a href="http://application.process.id">application.process.id</a> = "2465" I: sink-input.c: application.process.user = "root" I: sink-input.c: application.process.host = "(none)" I: sink-input.c: application.process.binary = "gst-launch-0.10" I: sink-input.c: application.language = "C" I: sink-input.c: window.x11.display = ":0" I: sink-input.c: application.process.machine_id = "(none)" I: sink-input.c: <a href="http://module-stream-restore.id">module-stream-restore.id</a> = "sink-input-by-media-role:event" I: protocol-native.c: Requested tlength=200.00 ms, minreq=10.00 ms D: protocol-native.c: Adjust latency mode enabled, configuring sink latency to half of overall latency. D: memblockq.c: memblockq requested: maxlength=4194304, tlength=19404, base=4, prebuf=0, minreq=1764 maxrewind=0 D: memblockq.c: memblockq sanitized: maxlength=4194304, tlength=19404, base=4, prebuf=0, minreq=1764 maxrewind=0 I: protocol-native.c: Final latency 200.00 ms = 90.00 ms + 2*10.00 ms + 90.00 ms D: alsa-sink.c: Latency set to 90.00ms D: alsa-sink.c: hwbuf_unused=115068 D: alsa-sink.c: setting avail_min=31855 D: core-subscribe.c: Dropped redundant event due to change event. E: module-cork-music-on-phone.c: DBG: play_beep: 62 E: core-scache.c: DBG: pa_scache_play_item: 314 Segmentation fault Best Regards, Himanshu <div class="gmail_quote">On Thu, Jun 9, 2011 at 1:51 AM, Colin Guthrie <<a href="mailto:gmane@colin.guthr.ie">gmane@colin.guthr.ie</a>> wrote: <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">'Twas brillig, and Himanshu Chug at 08/06/11 12:15 did gyre and gimble: <div class="im">> Hi Colin > > Further I tried to implement the BEEP logic for incoming "event" (say > sms) during "phone" call stream is active. > > I tried to load and play sample cache..using pa_scache_add_file() and > pa_scache_play_item() from module-cork-music-on-phone > > The sample gets loaded successfully in pa_init() module function, but > actually the problem I am facing is the media.role of sample is set to > "event" by default, ( I checked from pacmd --> list-samples) , so now my > usecase of mixing BEEP (for "event" e.g sms) with "phone" stream is > failing because the BEEP sample is set to media.role=event which gets > corked while "phone" is active , and currently for some reasons its > giving segmentation fault from pa_scache_play_item() function. > > Any suggestions or alternate on how to mix the BEEP with phone stream? </div>The fifth argument to pa_scache_play_item() is a proplist. Simply create a pa_proplist and inject an entry that sets media.role to something else (e.g. phone or simply a blank string). That should override the default media.role stored with the item itself. I suspect the segv comes from some kind of loop within your module, but it's hard to say without a backtrace. HTHs <div><div></div><div class="h5"> Col -- Colin Guthrie gmane(at)<a href="http://colin.guthr.ie" target="_blank">colin.guthr.ie</a> <a href="http://colin.guthr.ie/" target="_blank">http://colin.guthr.ie/</a> Day Job: Tribalogic Limited [<a href="http://www.tribalogic.net/" target="_blank">http://www.tribalogic.net/</a>] Open Source: Mageia Contributor [<a href="http://www.mageia.org/" target="_blank">http://www.mageia.org/</a>] PulseAudio Hacker [<a href="http://www.pulseaudio.org/" target="_blank">http://www.pulseaudio.org/</a>] Trac Hacker [<a href="http://trac.edgewall.org/" target="_blank">http://trac.edgewall.org/</a>] _______________________________________________ pulseaudio-discuss mailing list <a href="mailto:pulseaudio-discuss@lists.freedesktop.org">pulseaudio-discuss@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/pulseaudio-discuss" target="_blank">http://lists.freedesktop.org/mailman/listinfo/pulseaudio-discuss</a> </div></div></blockquote></div>