[gst-devel] Help for dshowaudiosrc
Julien Isorce
julien.isorce at gmail.com
Wed Mar 18 18:39:11 CET 2009
it's a bug in the original dshowaudiosrc,
as you can see in around line 360 of
http://cgit.freedesktop.org/gstreamer/gst-plugins-bad/tree/sys/dshowsrcwrapper/gstdshowaudiosrc.c
there is no PROP_DEVICE_NAME case in the switch.
static void
gst_dshowaudiosrc_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstDshowAudioSrc *src = GST_DSHOWAUDIOSRC (object);
switch (prop_id) {
case PROP_DEVICE:
{
if (src->device) {
g_free (src->device);
src->device = NULL;
}
if (g_value_get_string (value)) {
src->device = g_strdup (g_value_get_string (value));
}
break;
}
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
The fix is in the patch.
2009/3/18 <cammille at polytech.unice.fr>
> In the sound properties on WIndows, my device to capture the sound is
> named : "Realtek HD Audio Input"
>
> So I try :
> gst-launch-0.10.exe dshowaudiosrc device-name="Realtek HD Audio Input" !
> audioconvert ! vorbisenc ! oggmux ! filesink location=bar.ogg
>
> But I have an error which is :
> ** (gst-launch-0.10:77172): WARNING **:
> ..\..\sys\dshowsrcwrapper\gstdshowaudios
> rc.c:378: invalid property id 2 for "device-name" of type `GParamString'
> in `Gst
> DshowAudioSrc'
>
>
>
> > 2009/3/18 <cammille at polytech.unice.fr>
> >
> >> I would prefer to not recompile dshowaudiosrc if it's possible.
> >> My microphone is not muted. So I don't understand why it didn't work.
> >> With
> >> the windows magnetophone I can register my voice. Very strange...
> >
> >
> > Maybe how are not using the device you are excepting to use. In panel
> > configuration, sound, you can see if you have several audio devices. If
> > yes,
> > you have to set device name on dshowaudiosrc. (check the volume too)
> >
> >
> >> I don't find any information about property probe.. so I don't know how
> >> to
> >> use it.
> >
> >
> > gst doc.
> >
> >
> >>
> >> > Hi,
> >> >
> >> > 2 solutions.
> >> >
> >> > ****The first one (user) is to click on volume icone from task bar
> >> then
> >> > Options->properties then select "Enregistrement" ("Recording") then
> >> select
> >> > microphone then OK then unmute microphone.
> >> >
> >> > ****The second solution (using code), is to recompile dshowaudiosrc
> >> using
> >> > this patch:
> >> > http://bugzilla.gnome.org/show_bug.cgi?id=517203 (just see the last
> >> post)
> >> >
> >> > Then the following code could be used to list, select and configure
> >> the
> >> > input channel of your choise (S/PDIF, lineIn, Mic etc..)
> >> >
> >> > ----------------------------- list audio input
> >> ------------------------
> >> > vector<string> listAudioInputs(const string audioDeviceName)
> >> > GstElement* audiodevicesrc = create_element("dshowaudiosrc",
> >> > "audiodevicesrc");
> >> > g_object_set(G_OBJECT(audiodevicesrc), "device-name",
> >> > audioDeviceName.c_str(), NULL);
> >> >
> >> > GstPad* pad = gst_element_get_static_pad (audiodevicesrc, "src");
> >> > gst_pad_get_caps (pad);
> >> > if (pad)
> >> > gst_object_unref(pad);
> >> >
> >> > vector<string> l_inputs;
> >> > GstMixer *mixer = GST_MIXER (audiodevicesrc);
> >> > const GList* list = gst_mixer_list_tracks (mixer);
> >> >
> >> > for (const GList* item = list; item != NULL; item = item->next)
> >> > {
> >> > GstMixerTrack *track = (GstMixerTrack*)item->data;
> >> > l_inputs.push_back(string(track->label));
> >> > }
> >> >
> >> > if (audiodevicesrc)
> >> > {
> >> > gst_element_set_state (audiodevicesrc, GST_STATE_NULL);
> >> > gst_object_unref(GST_OBJECT (audiodevicesrc));
> >> > }
> >> >
> >> > return l_inputs;
> >> > }
> >> >
> >>
> ------------------------------------------------------------------------------------------------------
> >> >
> >> > ---------------------------- select record input and set volume
> >> > -------------------------------------
> >> > void setAudioInput(const string audioInput, int volumePercentOfMax)
> >> > {
> >> > GstMixer *mixer = GST_MIXER (audiodevicesrc);
> >> > GstMixerTrack *track = NULL;
> >> > const GList* list = gst_mixer_list_tracks (mixer);
> >> > for (const GList* item = list; item != NULL; item = item->next)
> >> > {
> >> > GstMixerTrack *track_next = (GstMixerTrack*)item->data;
> >> > if (audioInput == std::string(track_next->label))
> >> > track = track_next;
> >> > else
> >> > //mute other audio inputs
> >> > gst_mixer_set_mute(mixer, track_next, TRUE);
> >> > }
> >> > if (track)
> >> > {
> >> > vector<gint> volumes(m_audioNbChannels, (gint)(volumePercentOfMax
> >> *
> >> > track->max_volume / 100.0));
> >> > gst_mixer_set_record (mixer, track, TRUE);
> >> > gst_mixer_set_volume (mixer, track, &volumes[0]);
> >> >
> >> > }
> >> > }
> >> >
> >> >
> >>
> ------------------------------------------------------------------------------------------------------
> >> >
> >> > They are some bad things in this code but the idea is there.
> >> >
> >> > You can also use property probe on dshowaudiosrc to list all the audio
> >> > device names installed on your system.
> >> >
> >> > J.
> >> >
> >> >
> >> > 2009/3/18 <cammille at polytech.unice.fr>
> >> >
> >> >> Hello,
> >> >>
> >> >> I'm trying to use dshowaudiosrc on Windows but I have some problems.
> >> >>
> >> >> For example, I try :
> >> >>
> >> >> gst-launch-0.10.exe dshowaudiosrc ! audioconvert ! vorbisenc ! oggmux
> >> !
> >> >> filesink location=foo.ogg
> >> >>
> >> >> And hen I talk in my micro the file foo.ogg is empty.
> >> >> I already verified if my micro functions correctly. It does.
> >> >>
> >> >> If I try :
> >> >> gst-launch-0.10.exe audiotestsrc ! audioconvert ! vorbisenc ! oggmux
> >> !
> >> >> filesink location=foo.ogg it works !
> >> >>
> >> >>
> >> >> Where is the problem ?
> >> >>
> >> >>
> >> >>
> >> >>
> >> >>
> >> >>
> >>
> ------------------------------------------------------------------------------
> >> >> Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM)
> >> are
> >> >> powering Web 2.0 with engaging, cross-platform capabilities. Quickly
> >> and
> >> >> easily build your RIAs with Flex Builder, the Eclipse(TM)based
> >> >> development
> >> >> software that enables intelligent coding and step-through debugging.
> >> >> Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com
> >> >> _______________________________________________
> >> >> gstreamer-devel mailing list
> >> >> gstreamer-devel at lists.sourceforge.net
> >> >> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
> >> >>
> >> >
> >>
> ------------------------------------------------------------------------------
> >> > Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM)
> >> are
> >> > powering Web 2.0 with engaging, cross-platform capabilities. Quickly
> >> and
> >> > easily build your RIAs with Flex Builder, the Eclipse(TM)based
> >> development
> >> > software that enables intelligent coding and step-through debugging.
> >> > Download the free 60 day trial.
> >> >
> >>
> http://p.sf.net/sfu/www-adobe-com_______________________________________________
> >> > gstreamer-devel mailing list
> >> > gstreamer-devel at lists.sourceforge.net
> >> > https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
> >> >
> >>
> >>
> >>
> >>
> >>
> ------------------------------------------------------------------------------
> >> Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are
> >> powering Web 2.0 with engaging, cross-platform capabilities. Quickly and
> >> easily build your RIAs with Flex Builder, the Eclipse(TM)based
> >> development
> >> software that enables intelligent coding and step-through debugging.
> >> Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com
> >> _______________________________________________
> >> gstreamer-devel mailing list
> >> gstreamer-devel at lists.sourceforge.net
> >> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
> >>
> >
> ------------------------------------------------------------------------------
> > Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are
> > powering Web 2.0 with engaging, cross-platform capabilities. Quickly and
> > easily build your RIAs with Flex Builder, the Eclipse(TM)based
> development
> > software that enables intelligent coding and step-through debugging.
> > Download the free 60 day trial.
> >
> http://p.sf.net/sfu/www-adobe-com_______________________________________________
> > gstreamer-devel mailing list
> > gstreamer-devel at lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
> >
>
>
>
>
> ------------------------------------------------------------------------------
> Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are
> powering Web 2.0 with engaging, cross-platform capabilities. Quickly and
> easily build your RIAs with Flex Builder, the Eclipse(TM)based development
> software that enables intelligent coding and step-through debugging.
> Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>
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