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GStreamer Base Plugins 0.10 Library Reference Manual | ![]() |
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#include <gst/interfaces/tuner.h> GstTuner; const GList* gst_tuner_list_channels (GstTuner *tuner); GstTunerChannel* gst_tuner_get_channel (GstTuner *tuner); void gst_tuner_set_channel (GstTuner *tuner, GstTunerChannel *channel); const GList* gst_tuner_list_norms (GstTuner *tuner); GstTunerNorm* gst_tuner_get_norm (GstTuner *tuner); void gst_tuner_set_norm (GstTuner *tuner, GstTunerNorm *norm); gulong gst_tuner_get_frequency (GstTuner *tuner, GstTunerChannel *channel); void gst_tuner_set_frequency (GstTuner *tuner, GstTunerChannel *channel, gulong frequency); gint gst_tuner_signal_strength (GstTuner *tuner, GstTunerChannel *channel); GstTunerNorm* gst_tuner_find_norm_by_name (GstTuner *tuner, gchar *norm); GstTunerChannel* gst_tuner_find_channel_by_name (GstTuner *tuner, gchar *channel); void gst_tuner_channel_changed (GstTuner *tuner, GstTunerChannel *channel); void gst_tuner_norm_changed (GstTuner *tuner, GstTunerNorm *norm); void gst_tuner_frequency_changed (GstTuner *tuner, GstTunerChannel *channel, gulong frequency); void gst_tuner_signal_changed (GstTuner *tuner, GstTunerChannel *channel, gint signal);
"channel-changed" : Run Last "frequency-changed" : Run Last "norm-changed" : Run Last "signal-changed" : Run Last
const GList* gst_tuner_list_channels (GstTuner *tuner);
Retrieve a list of channels (e.g. 'composite', 's-video', ...) from the given tuner object.
tuner : |
the GstTuner (a GstElement) to get the channels from. |
Returns : | a list of channels available on this tuner. |
GstTunerChannel* gst_tuner_get_channel (GstTuner *tuner);
tuner : |
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Returns : |
void gst_tuner_set_channel (GstTuner *tuner, GstTunerChannel *channel);
Tunes the object to the given channel.
tuner : |
the GstTuner (a GstElement) that owns the channel. |
channel : |
the channel to tune to. |
GstTunerNorm* gst_tuner_get_norm (GstTuner *tuner);
Get the current video norm from the given tuner object for the currently selected channel.
tuner : |
the GstTuner (a GstElement) to get the current norm from. |
Returns : | the current norm. |
void gst_tuner_set_norm (GstTuner *tuner, GstTunerNorm *norm);
Changes the video norm on this tuner to the given norm.
tuner : |
the GstTuner (a GstElement) to set the norm on. |
norm : |
the norm to use for the current channel. |
gulong gst_tuner_get_frequency (GstTuner *tuner, GstTunerChannel *channel);
Retrieve the current frequency from the given channel. The same
applies as for set_frequency()
: check the flag.
tuner : |
the GstTuner (a GstElement) that owns the given channel. |
channel : |
the GstTunerChannel to retrieve the frequency from. |
Returns : | the current frequency, or 0 on error. |
void gst_tuner_set_frequency (GstTuner *tuner, GstTunerChannel *channel, gulong frequency);
Sets a tuning frequency on the given tuner/channel. Note that this
requires the given channel to be a "tuning" channel, which can be
checked using GST_TUNER_CHANNEL_HAS_FLAG()
, with the proper flag
being GST_TUNER_CHANNEL_FREQUENCY.
tuner : |
the Gsttuner (a GstElement) that owns the given channel. |
channel : |
the GstTunerChannel to set the frequency on. |
frequency : |
the frequency to tune in to. |
gint gst_tuner_signal_strength (GstTuner *tuner, GstTunerChannel *channel);
tuner : |
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channel : |
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Returns : |
GstTunerNorm* gst_tuner_find_norm_by_name (GstTuner *tuner, gchar *norm);
tuner : |
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norm : |
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Returns : |
GstTunerChannel* gst_tuner_find_channel_by_name (GstTuner *tuner, gchar *channel);
tuner : |
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channel : |
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Returns : |
void gst_tuner_channel_changed (GstTuner *tuner, GstTunerChannel *channel);
tuner : |
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channel : |
void gst_tuner_norm_changed (GstTuner *tuner, GstTunerNorm *norm);
tuner : |
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norm : |
void gst_tuner_frequency_changed (GstTuner *tuner, GstTunerChannel *channel, gulong frequency);
tuner : |
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channel : |
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frequency : |
void gst_tuner_signal_changed (GstTuner *tuner, GstTunerChannel *channel, gint signal);
tuner : |
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channel : |
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signal : |
void user_function (GstTuner *gsttuner, GstTunerChannel *arg1, gpointer user_data) : Run Last
gsttuner : |
the object which received the signal. |
arg1 : |
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user_data : |
user data set when the signal handler was connected. |
void user_function (GstTuner *gsttuner, GstTunerChannel *arg1, gulong arg2, gpointer user_data) : Run Last
gsttuner : |
the object which received the signal. |
arg1 : |
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arg2 : |
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user_data : |
user data set when the signal handler was connected. |
void user_function (GstTuner *gsttuner, GstTunerNorm *arg1, gpointer user_data) : Run Last
gsttuner : |
the object which received the signal. |
arg1 : |
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user_data : |
user data set when the signal handler was connected. |
void user_function (GstTuner *gsttuner, GstTunerChannel *arg1, gint arg2, gpointer user_data) : Run Last
gsttuner : |
the object which received the signal. |
arg1 : |
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arg2 : |
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user_data : |
user data set when the signal handler was connected. |