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basecamerasrc: document callbacks

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Note for each callback:
- when it is called,
- whether it is mandatory or optional.
This commit is contained in:
Raluca Elena Podiuc 2011-07-26 04:42:49 +03:00 committed by Thiago Santos
parent c189ba3496
commit 5aa37ebdc8
1 changed files with 10 additions and 7 deletions
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17
gst-libs/gst/basecamerabinsrc/gstbasecamerasrc.h
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@ -92,7 +92,7 @@ struct _GstBaseCameraSrc
/** /**
* GstBaseCameraSrcClass: * GstBaseCameraSrcClass:
* @construct_pipeline: construct pipeline must be implemented by derived class * @construct_pipeline: construct pipeline
* @setup_pipeline: configure pipeline for the chosen settings * @setup_pipeline: configure pipeline for the chosen settings
* @set_zoom: set the zoom * @set_zoom: set the zoom
* @set_mode: set the mode * @set_mode: set the mode
@ -101,29 +101,32 @@ struct _GstBaseCameraSrcClass
{ {
GstBinClass parent; GstBinClass parent;
/* construct pipeline must be implemented by derived class */ /* Construct pipeline. (called in GST_STATE_CHANGE_NULL_TO_READY) Optional. */
gboolean (*construct_pipeline) (GstBaseCameraSrc *self); gboolean (*construct_pipeline) (GstBaseCameraSrc *self);
/* optional */ /* (called in GST_STATE_CHANGE_READY_TO_PAUSED). Optional. */
gboolean (*setup_pipeline) (GstBaseCameraSrc *self); gboolean (*setup_pipeline) (GstBaseCameraSrc *self);
/* set the zoom */ /* Set the zoom. If set, called when changing 'zoom' property. Optional. */
void (*set_zoom) (GstBaseCameraSrc *self, gfloat zoom); void (*set_zoom) (GstBaseCameraSrc *self, gfloat zoom);
/* set the mode */ /* Set the mode. If set, called when changing 'mode' property. Optional. */
gboolean (*set_mode) (GstBaseCameraSrc *self, gboolean (*set_mode) (GstBaseCameraSrc *self,
GstCameraBinMode mode); GstCameraBinMode mode);
/* set preview caps */ /* Set preview caps. If set, called called when setting new 'preview-caps'. Optional. */
gboolean (*set_preview) (GstBaseCameraSrc *self, gboolean (*set_preview) (GstBaseCameraSrc *self,
GstCaps *preview_caps); GstCaps *preview_caps);
/* */ /* unused */
GstCaps * (*get_allowed_input_caps) (GstBaseCameraSrc * self); GstCaps * (*get_allowed_input_caps) (GstBaseCameraSrc * self);
void (*private_start_capture) (GstBaseCameraSrc * src); void (*private_start_capture) (GstBaseCameraSrc * src);
void (*private_stop_capture) (GstBaseCameraSrc * src); void (*private_stop_capture) (GstBaseCameraSrc * src);
/* Called by the handler for 'start-capture'. Mandatory. */
gboolean (*start_capture) (GstBaseCameraSrc * src); gboolean (*start_capture) (GstBaseCameraSrc * src);
/* Called by the handler for 'stop-capture'. Mandatory. */
void (*stop_capture) (GstBaseCameraSrc * src); void (*stop_capture) (GstBaseCameraSrc * src);
gpointer _gst_reserved[GST_PADDING_LARGE]; gpointer _gst_reserved[GST_PADDING_LARGE];