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GStreamer Base Plugins 0.10 Library Reference Manual | ![]() |
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#include <gst/interfaces/mixer.h> GstMixer; enum GstMixerType; const GList* gst_mixer_list_tracks (GstMixer *mixer); void gst_mixer_get_volume (GstMixer *mixer, GstMixerTrack *track, gint *volumes); void gst_mixer_set_volume (GstMixer *mixer, GstMixerTrack *track, gint *volumes); void gst_mixer_set_mute (GstMixer *mixer, GstMixerTrack *track, gboolean mute); void gst_mixer_set_record (GstMixer *mixer, GstMixerTrack *track, gboolean record); void gst_mixer_set_option (GstMixer *mixer, GstMixerOptions *opts, gchar *value); void gst_mixer_mute_toggled (GstMixer *mixer, GstMixerTrack *track, gboolean mute); void gst_mixer_record_toggled (GstMixer *mixer, GstMixerTrack *track, gboolean record); void gst_mixer_volume_changed (GstMixer *mixer, GstMixerTrack *track, gint *volumes); void gst_mixer_option_changed (GstMixer *mixer, GstMixerOptions *opts, gchar *value); const gchar* gst_mixer_get_option (GstMixer *mixer, GstMixerOptions *opts);
const GList* gst_mixer_list_tracks (GstMixer *mixer);
Returns a list of available tracks for this mixer/element. Note that it is allowed for sink (output) elements to only provide the output tracks in this list. Likewise, for sources (inputs), it is allowed to only provide input elements in this list.
mixer
:mixer
the GstMixer (a GstElement) to get the tracks from.
the GstMixer (a GstElement) to get the tracks from.
GstMixerGstMixerGstElementGstElementReturns :Returns A GList consisting of zero or more GstMixerTracks.
A GList consisting of zero or more GstMixerTracks.
GListGListGstMixerTracksGstMixerTracks
mixer : |
the GstMixer (a GstElement) to get the tracks from. |
Returns : | A GList consisting of zero or more GstMixerTracks. |
void gst_mixer_get_volume (GstMixer *mixer, GstMixerTrack *track, gint *volumes);
mixer
:mixer
track
:track
volumes
:volumes
mixer : |
|
track : |
|
volumes : |
void gst_mixer_set_volume (GstMixer *mixer, GstMixerTrack *track, gint *volumes);
Sets the volume on each channel in a track. Short note about naming: a track is defined as one separate stream owned by the mixer/element, such as 'Line-in' or 'Microphone'. A channel is said to be a mono-stream inside this track. A stereo track thus contains two channels.
mixer
:mixer
The GstMixer (a GstElement) that owns the track.
The GstMixer (a GstElement) that owns the track.
GstMixerGstMixerGstElementGstElementtrack
:track
The GstMixerTrack to set the volume on.
The GstMixerTrack to set the volume on.
GstMixerTrackGstMixerTrackvolumes
:volumes
an array of integers (of size track->num_channels)
that gives the wanted volume for each channel in
this track.
an array of integers (of size track->num_channels)
that gives the wanted volume for each channel in
this track.
mixer : |
The GstMixer (a GstElement) that owns the track. |
track : |
The GstMixerTrack to set the volume on. |
volumes : |
an array of integers (of size track->num_channels) that gives the wanted volume for each channel in this track. |
void gst_mixer_set_mute (GstMixer *mixer, GstMixerTrack *track, gboolean mute);
Mutes or unmutes the given channel. To find out whether a
track is currently muted, use GST_MIXER_TRACK_HAS_FLAG()
.
mixer
:mixer
the GstMixer (a GstElement) that owns the track.
the GstMixer (a GstElement) that owns the track.
GstMixerGstMixerGstElementGstElementtrack
:track
the GstMixerTrack to operate on.
the GstMixerTrack to operate on.
GstMixerTrackGstMixerTrackmute
:mute
a boolean value indicating whether to turn on or off
muting.
a boolean value indicating whether to turn on or off
muting.
mixer : |
the GstMixer (a GstElement) that owns the track. |
track : |
the GstMixerTrack to operate on. |
mute : |
a boolean value indicating whether to turn on or off muting. |
void gst_mixer_set_record (GstMixer *mixer, GstMixerTrack *track, gboolean record);
Enables or disables recording on the given track. Note that
this is only possible on input tracks, not on output tracks
(see GST_MIXER_TRACK_HAS_FLAG()
and the GST_MIXER_TRACK_INPUT
flag).
mixer
:mixer
The GstMixer (a GstElement) that owns the track.
The GstMixer (a GstElement) that owns the track.
GstMixerGstMixerGstElementGstElementtrack
:track
the GstMixerTrack to operate on.
the GstMixerTrack to operate on.
GstMixerTrackGstMixerTrackrecord
:record
a boolean value that indicates whether to turn on
or off recording.
a boolean value that indicates whether to turn on
or off recording.
mixer : |
The GstMixer (a GstElement) that owns the track. |
track : |
the GstMixerTrack to operate on. |
record : |
a boolean value that indicates whether to turn on or off recording. |
void gst_mixer_set_option (GstMixer *mixer, GstMixerOptions *opts, gchar *value);
Sets a name/value option in the mixer to the requested value.
mixer
:mixer
The GstMixer (a GstElement) that owns the optionlist.
The GstMixer (a GstElement) that owns the optionlist.
GstMixerGstMixerGstElementGstElementopts
:opts
The GstMixerOptions that we operate on.
The GstMixerOptions that we operate on.
GstMixerOptionsGstMixerOptionsvalue
:value
The requested new option value.
The requested new option value.
mixer : |
The GstMixer (a GstElement) that owns the optionlist. |
opts : |
The GstMixerOptions that we operate on. |
value : |
The requested new option value. |
void gst_mixer_mute_toggled (GstMixer *mixer, GstMixerTrack *track, gboolean mute);
mixer
:mixer
track
:track
mute
:mute
mixer : |
|
track : |
|
mute : |
void gst_mixer_record_toggled (GstMixer *mixer, GstMixerTrack *track, gboolean record);
mixer
:mixer
track
:track
record
:record
mixer : |
|
track : |
|
record : |
void gst_mixer_volume_changed (GstMixer *mixer, GstMixerTrack *track, gint *volumes);
mixer
:mixer
track
:track
volumes
:volumes
mixer : |
|
track : |
|
volumes : |
void gst_mixer_option_changed (GstMixer *mixer, GstMixerOptions *opts, gchar *value);
mixer
:mixer
opts
:opts
value
:value
mixer : |
|
opts : |
|
value : |
const gchar* gst_mixer_get_option (GstMixer *mixer, GstMixerOptions *opts);
Get the current value of a name/value option in the mixer.
mixer
:mixer
The GstMixer (a GstElement) that owns the optionlist.
The GstMixer (a GstElement) that owns the optionlist.
GstMixerGstMixerGstElementGstElementopts
:opts
The GstMixerOptions that we operate on.
The GstMixerOptions that we operate on.
GstMixerOptionsGstMixerOptionsReturns :Returns current value of the name/value option.
current value of the name/value option.
mixer : |
The GstMixer (a GstElement) that owns the optionlist. |
opts : |
The GstMixerOptions that we operate on. |
Returns : | current value of the name/value option. |