Thanks for your respone! It's strange that client can play audio, but can't set volume.
I have renamed the \lib\gstreamer-0.10\libgstdirectsoundsink.dll, the result is no audio can play. I have no idea what the problem is. May I verifiy the directsoundsink element have been included? Thanks! 2014-02-24 20:06 GMT+08:00 Marc-André Lureau <mlur...@redhat.com>: > > > ----- Original Message ----- > > Hi all! > > > > I connected Spice server by windows spice client which is complied by > > mingw32, and set the volume. > > > > But the volume didn't change. > > > > the code form: > > > https://gitorious.org/spice-gtk/spice-gtk-elmarco/source/f270119352604755a13fcc87783127c3d96c4f61:gtk/spice-gstaudio.c > > > > create pipe code: > > if (pipeline == NULL) > > pipeline = g_strdup_printf("appsrc is-live=1 do-timestamp=0 caps=\"%s\" > > name=\"appsrc\" ! queue ! " > > "audioconvert ! audioresample ! autoaudiosink name=\"audiosink\"", > > audio_caps); > > SPICE_DEBUG("audio pipeline: %s", pipeline); > > p->playback.pipe = gst_parse_launch(pipeline, &error); > > if (p->playback.pipe == NULL) { > > g_warning("Failed to create pipeline: %s", error->message); > > goto lerr; > > } > > p->playback.src = gst_bin_get_by_name(GST_BIN(p->playback.pipe), > "appsrc"); > > p->playback.sink = gst_bin_get_by_name(GST_BIN(p->playback.pipe), > > "audiosink"); > > > > set volume code: > > GstElement *e; > > if (GST_IS_BIN(p->playback.sink)) > > e = gst_bin_get_by_interface(GST_BIN(p->playback.sink), > > GST_TYPE_STREAM_VOLUME); > > else > > e = g_object_ref(p->playback.sink); > > > > I have debuged the code. when the volume was set, the e returned NULL. > > > > Is it a bug? > > If you don't have a sink, it means you are missing gstreamer plugins. > > On Windows, you need the directsoundsink element (from gst-plugins-good). > It implements the "volume" property. > > cheers >
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