[gst-devel] Help for dshowaudiosrc
cammille at polytech.unice.fr
cammille at polytech.unice.fr
Wed Mar 18 16:55:45 CET 2009
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 ?
>> >>
>> >>
>> >>
>> >>
>> >>
>> >>
>> ------------------------------------------------------------------------------
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>> are
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>> >> Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com
>> >> _______________________________________________
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>> >> 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_______________________________________________
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>> >
>>
>>
>>
>>
>> ------------------------------------------------------------------------------
>> 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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