diff options
Diffstat (limited to 'sys/v4l2/gstv4l2object.h')
| -rw-r--r-- | sys/v4l2/gstv4l2object.h | 39 |
1 files changed, 38 insertions, 1 deletions
diff --git a/sys/v4l2/gstv4l2object.h b/sys/v4l2/gstv4l2object.h index 88d4eeeb6..4aac3a518 100644 --- a/sys/v4l2/gstv4l2object.h +++ b/sys/v4l2/gstv4l2object.h @@ -51,6 +51,16 @@ #include <gst/interfaces/propertyprobe.h> + +/* size of v4l2 buffer pool in streaming case */ +#define GST_V4L2_MAX_BUFFERS 16 +#define GST_V4L2_MIN_BUFFERS 1 + +/* max frame width/height */ +#define GST_V4L2_MAX_SIZE (1<<15) /* 2^15 == 32768 */ + + + G_BEGIN_DECLS #define GST_V4L2_OBJECT(obj) (GstV4l2Object *)(obj) @@ -77,6 +87,8 @@ struct _GstV4l2Object { /* the video buffer (mmap()'ed) */ guint8 **buffer; + enum v4l2_buf_type type; /* V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_BUF_TYPE_VIDEO_OUTPUT */ + /* the video device's capabilities */ struct v4l2_capability vcap; @@ -87,6 +99,8 @@ struct _GstV4l2Object { struct v4l2_input vinput; /* lists... */ + GSList *formats; /* list of available capture formats */ + GList *colors; GList *norms; GList *channels; @@ -121,13 +135,16 @@ GType gst_v4l2_object_get_type (void); /* create/destroy */ GstV4l2Object * gst_v4l2_object_new (GstElement * element, + enum v4l2_buf_type type, + char *default_device, GstV4l2GetInOutFunction get_in_out_func, GstV4l2SetInOutFunction set_in_out_func, GstV4l2UpdateFpsFunction update_fps_func); void gst_v4l2_object_destroy (GstV4l2Object * v4l2object); /* properties */ -void gst_v4l2_object_install_properties_helper (GObjectClass *gobject_class); + +void gst_v4l2_object_install_properties_helper (GObjectClass *gobject_class, const char *default_device); gboolean gst_v4l2_object_set_property_helper (GstV4l2Object *v4l2object, guint prop_id, const GValue * value, @@ -152,6 +169,26 @@ GValueArray* gst_v4l2_probe_get_values (GstPropertyProbe * probe, guint pro const GParamSpec * pspec, GList ** klass_devices); +GstCaps* gst_v4l2_object_probe_caps_for_format (GstV4l2Object *v4l2object, guint32 pixelformat, + const GstStructure * template); + +gboolean gst_v4l2_object_get_caps_info (GstV4l2Object *v4l2object, GstCaps *caps, + struct v4l2_fmtdesc **format, gint *w, gint *h, + guint *fps_n, guint *fps_d, guint *size); + + +GSList* gst_v4l2_object_get_format_list (GstV4l2Object *v4l2object); + +GstCaps* gst_v4l2_object_get_all_caps (void); + +GstStructure* gst_v4l2_object_v4l2fourcc_to_structure (guint32 fourcc); + +gboolean gst_v4l2_object_set_format (GstV4l2Object *v4l2object, guint32 pixelformat, guint32 width, guint32 height); + +gboolean gst_v4l2_object_start_streaming (GstV4l2Object *v4l2object); +gboolean gst_v4l2_object_stop_streaming (GstV4l2Object *v4l2object); + + #define GST_IMPLEMENT_V4L2_PROBE_METHODS(Type_Class, interface_as_function) \ \ static void \ |