gstreamer/docs/gst/gstreamer-decl.txt

<MACRO>
<NAME>COTHREAD_STACKSIZE</NAME>
#define COTHREAD_STACKSIZE 8192
</MACRO>
<MACRO>
<NAME>COTHREAD_MAXTHREADS</NAME>
#define COTHREAD_MAXTHREADS 16
</MACRO>
<MACRO>
<NAME>STACK_SIZE</NAME>
#define STACK_SIZE 0x200000
</MACRO>
<MACRO>
<NAME>CURRENT_STACK_FRAME</NAME>
#define CURRENT_STACK_FRAME  ({ char __csf; &__csf; })
</MACRO>
<STRUCT>
<NAME>cothread_state</NAME>
</STRUCT>
<STRUCT>
<NAME>cothread_context</NAME>
</STRUCT>
<USER_FUNCTION>
<NAME>cothread_func</NAME>
<RETURNS>int </RETURNS>
int argc,char **argv
</USER_FUNCTION>
<MACRO>
<NAME>COTHREAD_STARTED</NAME>
#define COTHREAD_STARTED	0x01
</MACRO>
<STRUCT>
<NAME>cothread_state</NAME>
struct cothread_state {
  cothread_context *ctx;
  int threadnum;

  cothread_func func;
  int argc;
  char **argv;

  int flags;
  int *sp;
  int *pc;
  jmp_buf jmp;
};
</STRUCT>
<STRUCT>
<NAME>cothread_context</NAME>
struct cothread_context {
  cothread_state *threads[COTHREAD_MAXTHREADS];
  int nthreads;
  int current;
};
</STRUCT>
<FUNCTION>
<NAME>cothread_init</NAME>
<RETURNS>cothread_context  *</RETURNS>

</FUNCTION>
<FUNCTION>
<NAME>cothread_create</NAME>
<RETURNS>cothread_state  *</RETURNS>
cothread_context *ctx
</FUNCTION>
<FUNCTION>
<NAME>cothread_setfunc</NAME>
<RETURNS>void  </RETURNS>
cothread_state *thread,cothread_func func,int argc,char **argv
</FUNCTION>
<FUNCTION>
<NAME>cothread_switch</NAME>
<RETURNS>void  </RETURNS>
cothread_state *thread
</FUNCTION>
<FUNCTION>
<NAME>cothread_main</NAME>
<RETURNS>cothread_state  *</RETURNS>
cothread_context *ctx
</FUNCTION>
<FUNCTION>
<NAME>gst_init</NAME>
<RETURNS>void  </RETURNS>
int *argc,char **argv[]
</FUNCTION>
<FUNCTION>
<NAME>gst_main</NAME>
<RETURNS>void  </RETURNS>

</FUNCTION>
<FUNCTION>
<NAME>gst_main_quit</NAME>
<RETURNS>void  </RETURNS>

</FUNCTION>
<MACRO>
<NAME>DEBUG</NAME>
#define DEBUG(format, args...) g_print("DEBUG:(%d) " format, getpid() , ##args)
</MACRO>
<MACRO>
<NAME>DEBUG</NAME>
#define DEBUG(format, args...)
</MACRO>
<VARIABLE>
<NAME>gst_bin_details</NAME>
extern GstElementDetails gst_bin_details;
</VARIABLE>
<MACRO>
<NAME>GST_TYPE_BIN</NAME>
#define GST_TYPE_BIN \
  (gst_bin_get_type())
</MACRO>
<MACRO>
<NAME>GST_BIN</NAME>
#define GST_BIN(obj) \
  (GTK_CHECK_CAST((obj),GST_TYPE_BIN,GstBin))
</MACRO>
<MACRO>
<NAME>GST_BIN_CLASS</NAME>
#define GST_BIN_CLASS(klass) \
  (GTK_CHECK_CLASS_CAST((klass),GST_TYPE_BIN,GstBinClass))
</MACRO>
<MACRO>
<NAME>GST_IS_BIN</NAME>
#define GST_IS_BIN(obj) \
  (GTK_CHECK_TYPE((obj),GST_TYPE_BIN))
</MACRO>
<MACRO>
<NAME>GST_IS_BIN_CLASS</NAME>
#define GST_IS_BIN_CLASS(obj) \
  (GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_BIN))
</MACRO>
<STRUCT>
<NAME>GstBin</NAME>
</STRUCT>
<STRUCT>
<NAME>GstBinClass</NAME>
</STRUCT>
<STRUCT>
<NAME>GstBin</NAME>
struct GstBin {
  GstElement element;

  // our children
  gint numchildren;
  GList *children;

  // iteration state
  gboolean need_cothreads;
  GList *entries;
  gint numentries;

  cothread_context *threadcontext;
  gboolean use_cothreads;
};
</STRUCT>
<STRUCT>
<NAME>GstBinClass</NAME>
struct GstBinClass {
  GstElementClass parent_class;

  void (*object_added) (GstObject *object,GstObject *child);

  /* change the state of elements of the given type */
  gboolean (*change_state_type) (GstBin *bin,
                                 GstElementState state,
                                 GtkType type);

  /* create a plan for the execution of the bin */
  void (*create_plan) (GstBin *bin);

  /* run a full iteration of operation */
  void (*iterate) (GstBin *bin);
};
</STRUCT>
<FUNCTION>
<NAME>gst_bin_get_type</NAME>
<RETURNS>GtkType  </RETURNS>
void
</FUNCTION>
<FUNCTION>
<NAME>gst_bin_new</NAME>
<RETURNS>GstElement  *</RETURNS>
gchar *name
</FUNCTION>
<MACRO>
<NAME>gst_bin_destroy</NAME>
#define gst_bin_destroy(bin) gst_object_destroy(GST_OBJECT(bin))
</MACRO>
<FUNCTION>
<NAME>gst_bin_add</NAME>
<RETURNS>void  </RETURNS>
GstBin *bin,GstElement *element
</FUNCTION>
<FUNCTION>
<NAME>gst_bin_remove</NAME>
<RETURNS>void  </RETURNS>
GstBin *bin,GstElement *element
</FUNCTION>
<FUNCTION>
<NAME>gst_bin_get_by_name</NAME>
<RETURNS>GstElement  *</RETURNS>
GstBin *bin,gchar *name
</FUNCTION>
<FUNCTION>
<NAME>gst_bin_get_list</NAME>
<RETURNS>GList  *</RETURNS>
GstBin *bin
</FUNCTION>
<FUNCTION>
<NAME>gst_bin_set_state_type</NAME>
<RETURNS>gboolean  </RETURNS>
GstBin *bin,GstElementState state,GtkType type
</FUNCTION>
<FUNCTION>
<NAME>gst_bin_iterate</NAME>
<RETURNS>void  </RETURNS>
GstBin *bin
</FUNCTION>
<FUNCTION>
<NAME>gst_bin_create_plan</NAME>
<RETURNS>void  </RETURNS>
GstBin *bin
</FUNCTION>
<FUNCTION>
<NAME>gst_bin_use_cothreads</NAME>
<RETURNS>void  </RETURNS>
GstBin *bin, gboolean enabled
</FUNCTION>
<MACRO>
<NAME>GST_BUFFER</NAME>
#define GST_BUFFER(buf) \
  ((GstBuffer *)(buf))
</MACRO>
<MACRO>
<NAME>GST_BUFFER_FLAGS</NAME>
#define GST_BUFFER_FLAGS(buf) \
  (GST_BUFFER(buf)->flags)
</MACRO>
<MACRO>
<NAME>GST_BUFFER_FLAG_IS_SET</NAME>
#define GST_BUFFER_FLAG_IS_SET(buf,flag) \
  (GST_BUFFER_FLAGS(buf) & (flag))
</MACRO>
<MACRO>
<NAME>GST_BUFFER_FLAG_SET</NAME>
#define GST_BUFFER_FLAG_SET(buf,flag) \
  G_STMT_START{ (GST_BUFFER_FLAGS(buf) |= (flag)); }G_STMT_END
</MACRO>
<MACRO>
<NAME>GST_BUFFER_FLAG_UNSET</NAME>
#define GST_BUFFER_FLAG_UNSET(buf,flag) \
  G_STMT_START{ (GST_BUFFER_FLAGS(buf) &= ~(flag)); }G_STMT_END
</MACRO>
<MACRO>
<NAME>GST_BUFFER_TYPE</NAME>
#define GST_BUFFER_TYPE(buf)		(GST_BUFFER(buf)->type)
</MACRO>
<MACRO>
<NAME>GST_BUFFER_DATA</NAME>
#define GST_BUFFER_DATA(buf)		(GST_BUFFER(buf)->data)
</MACRO>
<MACRO>
<NAME>GST_BUFFER_SIZE</NAME>
#define GST_BUFFER_SIZE(buf)		(GST_BUFFER(buf)->size)
</MACRO>
<MACRO>
<NAME>GST_BUFFER_OFFSET</NAME>
#define GST_BUFFER_OFFSET(buf)		(GST_BUFFER(buf)->offset)
</MACRO>
<MACRO>
<NAME>GST_BUFFER_MAXSIZE</NAME>
#define GST_BUFFER_MAXSIZE(buf)		(GST_BUFFER(buf)->maxsize)
</MACRO>
<MACRO>
<NAME>GST_BUFFER_TIMESTAMP</NAME>
#define GST_BUFFER_TIMESTAMP(buf)	(GST_BUFFER(buf)->timestamp)
</MACRO>
<MACRO>
<NAME>GST_BUFFER_LOCK</NAME>
#define GST_BUFFER_LOCK(buf)	(g_mutex_lock(GST_BUFFER(buf)->lock))
</MACRO>
<MACRO>
<NAME>GST_BUFFER_TRYLOCK</NAME>
#define GST_BUFFER_TRYLOCK(buf)	(g_mutex_trylock(GST_BUFFER(buf)->lock))
</MACRO>
<MACRO>
<NAME>GST_BUFFER_UNLOCK</NAME>
#define GST_BUFFER_UNLOCK(buf)	(g_mutex_unlock(GST_BUFFER(buf)->lock))
</MACRO>
<ENUM>
<NAME>GstBufferFlags</NAME>
typedef enum {
  GST_BUFFER_READONLY		= (1 << 0),
  GST_BUFFER_EOS		= (1 << 1),
  GST_BUFFER_ORIGINAL		= (1 << 2),
  GST_BUFFER_DONTFREE		= (1 << 3),
  GST_BUFFER_FLUSH		= (1 << 4),
} GstBufferFlags;
</ENUM>
<STRUCT>
<NAME>GstBuffer</NAME>
</STRUCT>
<STRUCT>
<NAME>GstBuffer</NAME>
struct GstBuffer {
  /* locking */
  GMutex *lock;

  /* refcounting */
#ifdef HAVE_ATOMIC_H
  atomic_t refcount;
#define GST_BUFFER_REFCOUNT(buf)	(atomic_read(&(GST_BUFFER((buf))->refcount)))
#else
  int refcount;
#define GST_BUFFER_REFCOUNT(buf)	(GST_BUFFER(buf)->refcount)
#endif

  /* data type of this buffer */
  guint16 type;
  /* flags */
  guint16 flags;

  /* pointer to data, its size, and offset in original source if known */
  guchar *data;
  guint32 size;
  guint32 maxsize;
  guint32 offset;

  /* timestamp */
  guint64 timestamp;
  /* max age */
  guint64 maxage;

  /* pointer to metadata, is really lame right now */
  GSList *metas;

  /* subbuffer support, who's my parent? */
  GstBuffer *parent;

  /* this is a pointer to the buffer pool (if any) */
  GstBufferPool *pool;
};
</STRUCT>
<FUNCTION>
<NAME>gst_buffer_new</NAME>
<RETURNS>GstBuffer  *</RETURNS>

</FUNCTION>
<FUNCTION>
<NAME>gst_buffer_new_from_pool</NAME>
<RETURNS>GstBuffer  *</RETURNS>
GstBufferPool *pool
</FUNCTION>
<FUNCTION>
<NAME>gst_buffer_create_sub</NAME>
<RETURNS>GstBuffer  *</RETURNS>
GstBuffer *parent,guint32 offset,guint32 size
</FUNCTION>
<FUNCTION>
<NAME>gst_buffer_append</NAME>
<RETURNS>GstBuffer  *</RETURNS>
GstBuffer *buffer, GstBuffer *append
</FUNCTION>
<FUNCTION>
<NAME>gst_buffer_ref</NAME>
<RETURNS>void  </RETURNS>
GstBuffer *buffer
</FUNCTION>
<FUNCTION>
<NAME>gst_buffer_ref_by_count</NAME>
<RETURNS>void  </RETURNS>
GstBuffer *buffer,int count
</FUNCTION>
<FUNCTION>
<NAME>gst_buffer_unref</NAME>
<RETURNS>void  </RETURNS>
GstBuffer *buffer
</FUNCTION>
<FUNCTION>
<NAME>gst_buffer_destroy</NAME>
<RETURNS>void  </RETURNS>
GstBuffer *buffer
</FUNCTION>
<FUNCTION>
<NAME>gst_buffer_add_meta</NAME>
<RETURNS>void  </RETURNS>
GstBuffer *buffer,GstMeta *meta
</FUNCTION>
<FUNCTION>
<NAME>gst_buffer_get_first_meta</NAME>
<RETURNS>GstMeta  *</RETURNS>
GstBuffer *buffer
</FUNCTION>
<FUNCTION>
<NAME>gst_buffer_get_metas</NAME>
<RETURNS>GSList  *</RETURNS>
GstBuffer *buffer
</FUNCTION>
<FUNCTION>
<NAME>gst_buffer_remove_meta</NAME>
<RETURNS>void  </RETURNS>
GstBuffer *buffer,GstMeta *meta
</FUNCTION>
<TYPEDEF>
<NAME>GstClockTime</NAME>
typedef guint64 GstClockTime;
</TYPEDEF>
<TYPEDEF>
<NAME>GstClockTimeDiff</NAME>
typedef gint64 GstClockTimeDiff;
</TYPEDEF>
<MACRO>
<NAME>GST_CLOCK_DIFF</NAME>
#define GST_CLOCK_DIFF(s, e) (GstClockTimeDiff)((s)-(e))
</MACRO>
<STRUCT>
<NAME>GstClock</NAME>
</STRUCT>
<STRUCT>
<NAME>GstClock</NAME>
struct GstClock {
  gchar *name;
  GstClockTime start_time;
  GstClockTime current_time;
  GstClockTimeDiff adjust;
  gboolean locking;
  GList *sinkobjects;
  gint num, num_locked;
  GMutex *sinkmutex;
  GMutex *lock;
};
</STRUCT>
<FUNCTION>
<NAME>gst_clock_new</NAME>
<RETURNS>GstClock  *</RETURNS>
gchar *name
</FUNCTION>
<FUNCTION>
<NAME>gst_clock_get_system</NAME>
<RETURNS>GstClock  *</RETURNS>
void
</FUNCTION>
<FUNCTION>
<NAME>gst_clock_register</NAME>
<RETURNS>void  </RETURNS>
GstClock *clock, GstObject *obj
</FUNCTION>
<FUNCTION>
<NAME>gst_clock_set</NAME>
<RETURNS>void  </RETURNS>
GstClock *clock, GstClockTime time
</FUNCTION>
<FUNCTION>
<NAME>gst_clock_reset</NAME>
<RETURNS>void  </RETURNS>
GstClock *clock
</FUNCTION>
<FUNCTION>
<NAME>gst_clock_wait</NAME>
<RETURNS>void  </RETURNS>
GstClock *clock, GstClockTime time, GstObject *obj
</FUNCTION>
<FUNCTION>
<NAME>gst_clock_current_diff</NAME>
<RETURNS>GstClockTimeDiff  </RETURNS>
GstClock *clock, GstClockTime time
</FUNCTION>
<MACRO>
<NAME>GST_TYPE_CONNECTION</NAME>
#define GST_TYPE_CONNECTION \
  (gst_connection_get_type())
</MACRO>
<MACRO>
<NAME>GST_CONNECTION</NAME>
#define GST_CONNECTION(obj) \
  (GTK_CHECK_CAST((obj),GST_TYPE_CONNECTION,GstConnection))
</MACRO>
<MACRO>
<NAME>GST_CONNECTION_CLASS</NAME>
#define GST_CONNECTION_CLASS(klass) \
  (GTK_CHECK_CLASS_CAST((klass),GST_TYPE_CONNECTION,GstConnectionClass))
</MACRO>
<MACRO>
<NAME>GST_IS_CONNECTION</NAME>
#define GST_IS_CONNECTION(obj) \
  (GTK_CHECK_TYPE((obj),GST_TYPE_CONNECTION))
</MACRO>
<MACRO>
<NAME>GST_IS_CONNECTION_CLASS</NAME>
#define GST_IS_CONNECTION_CLASS(obj) \
  (GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_CONNECTION)))
</MACRO>
<STRUCT>
<NAME>GstConnection</NAME>
</STRUCT>
<STRUCT>
<NAME>GstConnectionClass</NAME>
</STRUCT>
<STRUCT>
<NAME>GstConnection</NAME>
struct GstConnection {
  GstElement element;
};
</STRUCT>
<STRUCT>
<NAME>GstConnectionClass</NAME>
struct GstConnectionClass {
  GstElementClass parent_class;

  /* push function */
  void (*push) (GstConnection *connection);
};
</STRUCT>
<FUNCTION>
<NAME>gst_connection_get_type</NAME>
<RETURNS>GtkType  </RETURNS>
void
</FUNCTION>
<FUNCTION>
<NAME>gst_connection_new</NAME>
<RETURNS>GstElement  *</RETURNS>
gchar *name
</FUNCTION>
<FUNCTION>
<NAME>gst_connection_push</NAME>
<RETURNS>void  </RETURNS>
GstConnection *connection
</FUNCTION>
<ENUM>
<NAME>GstElementState</NAME>
typedef enum {
  GST_STATE_NONE_PENDING	= -1,
  GST_STATE_NULL	= 0,
  GST_STATE_READY	= 1,
  GST_STATE_PLAYING	= 2,
  GST_STATE_PAUSED	= 3,
} GstElementState;
</ENUM>
<ENUM>
<NAME>GstElementStateReturn</NAME>
typedef enum {
  GST_STATE_FAILURE	= 0,
  GST_STATE_SUCCESS	= 1,
  GST_STATE_ASYNC	= 2,
} GstElementStateReturn;
</ENUM>
<MACRO>
<NAME>GST_STATE</NAME>
#define GST_STATE(obj)			(GST_ELEMENT(obj)->current_state)
</MACRO>
<MACRO>
<NAME>GST_STATE_PENDING</NAME>
#define GST_STATE_PENDING(obj)		(GST_ELEMENT(obj)->pending_state)
</MACRO>
<MACRO>
<NAME>GST_TYPE_ELEMENT</NAME>
#define GST_TYPE_ELEMENT \
  (gst_element_get_type())
</MACRO>
<MACRO>
<NAME>GST_ELEMENT</NAME>
#define GST_ELEMENT(obj) \
  (GTK_CHECK_CAST((obj),GST_TYPE_ELEMENT,GstElement))
</MACRO>
<MACRO>
<NAME>GST_ELEMENT_CLASS</NAME>
#define GST_ELEMENT_CLASS(klass) \
  (GTK_CHECK_CLASS_CAST((klass),GST_TYPE_ELEMENT,GstElementClass))
</MACRO>
<MACRO>
<NAME>GST_IS_ELEMENT</NAME>
#define GST_IS_ELEMENT(obj) \
  (GTK_CHECK_TYPE((obj),GST_TYPE_ELEMENT))
</MACRO>
<MACRO>
<NAME>GST_IS_ELEMENT_CLASS</NAME>
#define GST_IS_ELEMENT_CLASS(obj) \
  (GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_ELEMENT))
</MACRO>
<ENUM>
<NAME>GstElementFlags</NAME>
typedef enum {
  GST_ELEMENT_MULTI_IN		= (1 << 0),
} GstElementFlags;
</ENUM>
<MACRO>
<NAME>GST_ELEMENT_IS_MULTI_IN</NAME>
#define GST_ELEMENT_IS_MULTI_IN(obj)	(GST_FLAGS(obj) & GST_ELEMENT_MULTI_IN)
</MACRO>
<STRUCT>
<NAME>GstElement</NAME>
</STRUCT>
<STRUCT>
<NAME>GstElementClass</NAME>
</STRUCT>
<STRUCT>
<NAME>GstElementDetails</NAME>
</STRUCT>
<STRUCT>
<NAME>GstElementFactory</NAME>
</STRUCT>
<USER_FUNCTION>
<NAME>GstElementLoopFunction</NAME>
<RETURNS>void </RETURNS>
GstElement *element
</USER_FUNCTION>
<STRUCT>
<NAME>GstElement</NAME>
struct GstElement {
  GstObject object;

  gchar *name;

  guint8 current_state;
  guint8 pending_state;

  GstElementLoopFunction loopfunc;
  cothread_state *threadstate;

  guint16 numpads;
  GList *pads;

  GstElement *manager;
};
</STRUCT>
<STRUCT>
<NAME>GstElementClass</NAME>
struct GstElementClass {
  GstObjectClass parent_class;

  /* the elementfactory that created us */
  GstElementFactory *elementfactory;

  /* signal callbacks */
  void (*state_change) (GstElement *element,GstElementState state);
  void (*new_pad) (GstElement *element,GstPad *pad);
  void (*new_ghost_pad) (GstElement *element,GstPad *pad);
  void (*error) (GstElement *element,gchar *error);

  /* events */
//  gboolean (*start) (GstElement *element,GstElementState state);
//  gboolean (*stop) (GstElement *element);

  /* change the element state */
  GstElementStateReturn (*change_state) (GstElement *element);

  /* create or read XML representation of self */
  xmlNodePtr (*save_thyself)(GstElement *element,xmlNodePtr parent);
  void (*restore_thyself)(GstElement *element,xmlNodePtr *self);
};
</STRUCT>
<STRUCT>
<NAME>GstElementDetails</NAME>
struct GstElementDetails {
  gchar *longname;              /* long, english name */
  gchar *class;                 /* type of element, kinda */
  gchar *description;           /* insights of one form or another */
  gchar *version;               /* version of the element */
  gchar *author;                /* who wrote this thing? */
  gchar *copyright;             /* copyright details (year, etc.) */
};
</STRUCT>
<STRUCT>
<NAME>GstElementFactory</NAME>
struct GstElementFactory {
  gchar *name;			/* name of element */
  GtkType type;			/* unique GtkType of element */

  GstElementDetails *details;	/* pointer to details struct */

  GList *src_types;
  GList *sink_types;
};
</STRUCT>
<FUNCTION>
<NAME>gst_element_get_type</NAME>
<RETURNS>GtkType  </RETURNS>
void
</FUNCTION>
<FUNCTION>
<NAME>gst_element_new</NAME>
<RETURNS>GstElement  *</RETURNS>
void
</FUNCTION>
<FUNCTION>
<NAME>gst_element_set_loop_function</NAME>
<RETURNS>void  </RETURNS>
GstElement *element,GstElementLoopFunction loop
</FUNCTION>
<FUNCTION>
<NAME>gst_element_set_name</NAME>
<RETURNS>void  </RETURNS>
GstElement *element,gchar *name
</FUNCTION>
<FUNCTION>
<NAME>gst_element_get_name</NAME>
<RETURNS>gchar  *</RETURNS>
GstElement *element
</FUNCTION>
<FUNCTION>
<NAME>gst_element_set_manager</NAME>
<RETURNS>void  </RETURNS>
GstElement *element,GstElement *manager
</FUNCTION>
<FUNCTION>
<NAME>gst_element_get_manager</NAME>
<RETURNS>GstElement  *</RETURNS>
GstElement *element
</FUNCTION>
<FUNCTION>
<NAME>gst_element_add_pad</NAME>
<RETURNS>void  </RETURNS>
GstElement *element,GstPad *pad
</FUNCTION>
<FUNCTION>
<NAME>gst_element_add_ghost_pad</NAME>
<RETURNS>void  </RETURNS>
GstElement *element,GstPad *pad
</FUNCTION>
<FUNCTION>
<NAME>gst_element_get_pad</NAME>
<RETURNS>GstPad  *</RETURNS>
GstElement *element,gchar *name
</FUNCTION>
<FUNCTION>
<NAME>gst_element_get_pad_list</NAME>
<RETURNS>GList  *</RETURNS>
GstElement *element
</FUNCTION>
<FUNCTION>
<NAME>gst_element_connect</NAME>
<RETURNS>void  </RETURNS>
GstElement *src,gchar *srcpadname,GstElement *dest,gchar *destpadname
</FUNCTION>
<FUNCTION>
<NAME>gst_element_set_state</NAME>
<RETURNS>gint  </RETURNS>
GstElement *element,GstElementState state
</FUNCTION>
<FUNCTION>
<NAME>gst_element_error</NAME>
<RETURNS>void  </RETURNS>
GstElement *element,gchar *error
</FUNCTION>
<FUNCTION>
<NAME>gst_element_get_factory</NAME>
<RETURNS>GstElementFactory  *</RETURNS>
GstElement *element
</FUNCTION>
<MACRO>
<NAME>gst_element_destroy</NAME>
#define gst_element_destroy(element) gst_object_destroy(GST_OBJECT(element))
</MACRO>
<FUNCTION>
<NAME>gst_element_save_thyself</NAME>
<RETURNS>xmlNodePtr  </RETURNS>
GstElement *element,xmlNodePtr parent
</FUNCTION>
<FUNCTION>
<NAME>gst_elementfactory_new</NAME>
<RETURNS>GstElementFactory  *</RETURNS>
gchar *name,GtkType type,GstElementDetails *details
</FUNCTION>
<FUNCTION>
<NAME>gst_elementfactory_register</NAME>
<RETURNS>void  </RETURNS>
GstElementFactory *elementfactory
</FUNCTION>
<FUNCTION>
<NAME>gst_elementfactory_add_src</NAME>
<RETURNS>void  </RETURNS>
GstElementFactory *elementfactory, guint16 id
</FUNCTION>
<FUNCTION>
<NAME>gst_elementfactory_add_sink</NAME>
<RETURNS>void  </RETURNS>
GstElementFactory *elementfactory, guint16 id
</FUNCTION>
<FUNCTION>
<NAME>gst_elementfactory_find</NAME>
<RETURNS>GstElementFactory  *</RETURNS>
gchar *name
</FUNCTION>
<FUNCTION>
<NAME>gst_elementfactory_get_list</NAME>
<RETURNS>GList  *</RETURNS>

</FUNCTION>
<FUNCTION>
<NAME>gst_elementfactory_create</NAME>
<RETURNS>GstElement  *</RETURNS>
GstElementFactory *factory,gchar *name
</FUNCTION>
<FUNCTION>
<NAME>gst_elementfactory_make</NAME>
<RETURNS>GstElement  *</RETURNS>
gchar *factoryname,gchar *name
</FUNCTION>
<FUNCTION>
<NAME>gst_elementfactory_save_thyself</NAME>
<RETURNS>xmlNodePtr  </RETURNS>
GstElementFactory *factory, xmlNodePtr parent
</FUNCTION>
<FUNCTION>
<NAME>gst_elementfactory_load_thyself</NAME>
<RETURNS>GstElementFactory  *</RETURNS>
xmlNodePtr parent
</FUNCTION>
<FUNCTION>
<NAME>gst_element_loopfunc_wrapper</NAME>
<RETURNS>int  </RETURNS>
int argc,char **argv
</FUNCTION>
<MACRO>
<NAME>GST_TYPE_FILTER</NAME>
#define GST_TYPE_FILTER \
  (gst_filter_get_type())
</MACRO>
<MACRO>
<NAME>GST_FILTER</NAME>
#define GST_FILTER(obj) \
  (GTK_CHECK_CAST((obj),GST_TYPE_FILTER,GstFilter))
</MACRO>
<MACRO>
<NAME>GST_FILTER_CLASS</NAME>
#define GST_FILTER_CLASS(klass) \
  (GTK_CHECK_CLASS_CAST((klass),GST_TYPE_FILTER,GstFilterClass))
</MACRO>
<MACRO>
<NAME>GST_IS_FILTER</NAME>
#define GST_IS_FILTER(obj) \
  (GTK_CHECK_TYPE((obj),GST_TYPE_FILTER))
</MACRO>
<MACRO>
<NAME>GST_IS_FILTER_CLASS</NAME>
#define GST_IS_FILTER_CLASS(obj) \
  (GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_FILTER))
</MACRO>
<STRUCT>
<NAME>GstFilter</NAME>
</STRUCT>
<STRUCT>
<NAME>GstFilterClass</NAME>
</STRUCT>
<STRUCT>
<NAME>GstFilter</NAME>
struct GstFilter {
  GstElement element;
};
</STRUCT>
<STRUCT>
<NAME>GstFilterClass</NAME>
struct GstFilterClass {
  GstElementClass parent_class;
};
</STRUCT>
<FUNCTION>
<NAME>gst_filter_get_type</NAME>
<RETURNS>GtkType  </RETURNS>
void
</FUNCTION>
<FUNCTION>
<NAME>gst_filter_new</NAME>
<RETURNS>GstElement  *</RETURNS>
gchar *name
</FUNCTION>
<MACRO>
<NAME>GST_SHOW_INFO</NAME>
#define GST_SHOW_INFO
</MACRO>
<MACRO>
<NAME>gst_info</NAME>
#define gst_info(format,args...) fprintf(stderr,format,##args)
</MACRO>
<MACRO>
<NAME>gst_info</NAME>
#define gst_info(format,args...)
</MACRO>
<MACRO>
<NAME>GST_META</NAME>
#define GST_META(meta) ((GstMeta *)(meta))
</MACRO>
<MACRO>
<NAME>GST_META_FLAGS</NAME>
#define GST_META_FLAGS(buf) \
  (GST_META(buf)->flags)
</MACRO>
<MACRO>
<NAME>GST_META_FLAG_IS_SET</NAME>
#define GST_META_FLAG_IS_SET(meta,flag) \
  (GST_META_FLAGS(meta) & (flag))
</MACRO>
<MACRO>
<NAME>GST_META_FLAG_SET</NAME>
#define GST_META_FLAG_SET(meta,flag) \
  G_STMT_START{ (GST_META_FLAGS(meta) |= (flag)); }G_STMT_END
</MACRO>
<MACRO>
<NAME>GST_META_FLAG_UNSET</NAME>
#define GST_META_FLAG_UNSET(meta,flag) \
  G_STMT_START{ (GST_META_FLAGS(meta) &= ~(flag)); }G_STMT_END
</MACRO>
<ENUM>
<NAME>GstMetaFlags</NAME>
typedef enum {
  GST_META_FREEABLE             = 1 << 0,
} GstMetaFlags;
</ENUM>
<STRUCT>
<NAME>GstMeta</NAME>
</STRUCT>
<STRUCT>
<NAME>GstMeta</NAME>
struct GstMeta {
  /* locking */
  GMutex *lock;

  /* refcounting */
#ifdef HAVE_ATOMIC_H
  atomic_t refcount;
#else
  int refcount;
#endif

  guint16 type;
  guint16 flags;

  void *data;
  guint16 size;
};
</STRUCT>
<FUNCTION>
<NAME>gst_meta_new_size</NAME>
<RETURNS>GstMeta  *</RETURNS>
gint size
</FUNCTION>
<MACRO>
<NAME>gst_meta_new</NAME>
#define gst_meta_new(type) (type *)gst_meta_new_size(sizeof(type))
</MACRO>
<FUNCTION>
<NAME>gst_meta_ref</NAME>
<RETURNS>void  </RETURNS>
GstMeta *meta
</FUNCTION>
<FUNCTION>
<NAME>gst_meta_unref</NAME>
<RETURNS>void  </RETURNS>
GstMeta *meta
</FUNCTION>
<MACRO>
<NAME>GST_TYPE_OBJECT</NAME>
#define GST_TYPE_OBJECT \
  (gst_object_get_type())
</MACRO>
<MACRO>
<NAME>GST_OBJECT</NAME>
#define GST_OBJECT(obj) \
  (GTK_CHECK_CAST((obj),GST_TYPE_OBJECT,GstObject))
</MACRO>
<MACRO>
<NAME>GST_OBJECT_CLASS</NAME>
#define GST_OBJECT_CLASS(klass) \
  (GTK_CHECK_CLASS_CAST((klass),GST_TYPE_OBJECT,GstObjectClass))
</MACRO>
<MACRO>
<NAME>GST_IS_OBJECT</NAME>
#define GST_IS_OBJECT(obj) \
  (GTK_CHECK_TYPE((obj),GST_TYPE_OBJECT))
</MACRO>
<MACRO>
<NAME>GST_IS_OBJECT_CLASS</NAME>
#define GST_IS_OBJECT_CLASS(obj) \
  (GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_OBJECT))
</MACRO>
<STRUCT>
<NAME>GstObject</NAME>
</STRUCT>
<STRUCT>
<NAME>GstObjectClass</NAME>
</STRUCT>
<STRUCT>
<NAME>GstObject</NAME>
struct GstObject {
  GtkObject object;

  /* have to have a refcount for the object */
#ifdef HAVE_ATOMIC_H
  atomic_t refcount;
#else
  int refcount;
#endif

  /* locking for all sorts of things (like the refcount) */
  GMutex *lock;

  /* this objects parent */
  GstObject *parent;
};
</STRUCT>
<STRUCT>
<NAME>GstObjectClass</NAME>
struct GstObjectClass {
  GtkObjectClass parent_class;

  /* signals */
  void (*parent_set) (GstObject *object,GstObject *parent);

  /* functions go here */
};
</STRUCT>
<MACRO>
<NAME>GST_FLAGS</NAME>
#define GST_FLAGS(obj)			GTK_OBJECT_FLAGS(obj)
</MACRO>
<MACRO>
<NAME>GST_FLAG_IS_SET</NAME>
#define GST_FLAG_IS_SET(obj,flag)	(GST_FLAGS (obj) & (flag))
</MACRO>
<MACRO>
<NAME>GST_FLAG_SET</NAME>
#define GST_FLAG_SET(obj,flag)		G_STMT_START{ (GST_FLAGS (obj) |= (flag)); }G_STMT_END
</MACRO>
<MACRO>
<NAME>GST_FLAG_UNSET</NAME>
#define GST_FLAG_UNSET(obj,flag)	G_STMT_START{ (GST_FLAGS (obj) &= ~(flag)); }G_STMT_END
</MACRO>
<MACRO>
<NAME>GST_LOCK</NAME>
#define GST_LOCK(obj)		(g_mutex_lock(GST_OBJECT(obj)->lock))
</MACRO>
<MACRO>
<NAME>GST_TRYLOCK</NAME>
#define GST_TRYLOCK(obj)	(g_mutex_trylock(GST_OBJECT(obj)->lock))
</MACRO>
<MACRO>
<NAME>GST_UNLOCK</NAME>
#define GST_UNLOCK(obj)		(g_mutex_unlock(GST_OBJECT(obj)->lock))
</MACRO>
<FUNCTION>
<NAME>gst_object_get_type</NAME>
<RETURNS>GtkType  </RETURNS>
void
</FUNCTION>
<FUNCTION>
<NAME>gst_object_new</NAME>
<RETURNS>GstObject *</RETURNS>
void
</FUNCTION>
<FUNCTION>
<NAME>gst_object_set_parent</NAME>
<RETURNS>void  </RETURNS>
GstObject *object,GstObject *parent
</FUNCTION>
<FUNCTION>
<NAME>gst_object_get_parent</NAME>
<RETURNS>GstObject  *</RETURNS>
GstObject *object
</FUNCTION>
<FUNCTION>
<NAME>gst_object_unparent</NAME>
<RETURNS>void  </RETURNS>
GstObject *object
</FUNCTION>
<MACRO>
<NAME>gst_object_ref</NAME>
#define gst_object_ref(object) gtk_object_ref(GTK_OBJECT(object));
</MACRO>
<MACRO>
<NAME>gst_object_unref</NAME>
#define gst_object_unref(object) gtk_object_unref(GTK_OBJECT(object));
</MACRO>
<MACRO>
<NAME>gst_object_sink</NAME>
#define gst_object_sink(object) gtk_object_sink(GTK_OBJECT(object));
</MACRO>
<MACRO>
<NAME>gst_object_destroy</NAME>
#define gst_object_destroy(object) gtk_object_destroy(GTK_OBJECT(object))
</MACRO>
<MACRO>
<NAME>GST_TYPE_PAD</NAME>
#define GST_TYPE_PAD                 (gst_pad_get_type())
</MACRO>
<MACRO>
<NAME>GST_PAD</NAME>
#define GST_PAD(obj)                 (GTK_CHECK_CAST((obj),GST_TYPE_PAD,GstPad))
</MACRO>
<MACRO>
<NAME>GST_PAD_CLASS</NAME>
#define GST_PAD_CLASS(klass)         (GTK_CHECK_CLASS_CAST((klass),GST_TYPE_PAD,GstPadClass))
</MACRO>
<MACRO>
<NAME>GST_IS_PAD</NAME>
#define GST_IS_PAD(obj)              (GTK_CHECK_TYPE((obj),GST_TYPE_PAD))
</MACRO>
<MACRO>
<NAME>GST_IS_PAD_CLASS</NAME>
#define GST_IS_PAD_CLASS(obj)        (GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_PAD))
</MACRO>
<MACRO>
<NAME>GST_PAD_CONNECTED</NAME>
#define GST_PAD_CONNECTED(pad) ((pad)->peer != NULL)
</MACRO>
<MACRO>
<NAME>GST_PAD_CAN_PULL</NAME>
#define GST_PAD_CAN_PULL(pad) ((pad)->pullfunc != NULL)
</MACRO>
<STRUCT>
<NAME>GstPad</NAME>
</STRUCT>
<STRUCT>
<NAME>GstPadClass</NAME>
</STRUCT>
<USER_FUNCTION>
<NAME>GstPadChainFunction</NAME>
<RETURNS>void </RETURNS>
GstPad *pad,GstBuffer *buf
</USER_FUNCTION>
<USER_FUNCTION>
<NAME>GstPadPullFunction</NAME>
<RETURNS>void </RETURNS>
GstPad *pad
</USER_FUNCTION>
<USER_FUNCTION>
<NAME>GstPadPushFunction</NAME>
<RETURNS>void </RETURNS>
GstPad *pad
</USER_FUNCTION>
<USER_FUNCTION>
<NAME>GstPadQoSFunction</NAME>
<RETURNS>void </RETURNS>
GstPad *pad, glong qos_message
</USER_FUNCTION>
<ENUM>
<NAME>GstPadDirection</NAME>
typedef enum {
  GST_PAD_UNKNOWN,
  GST_PAD_SRC,
  GST_PAD_SINK,
} GstPadDirection;
</ENUM>
<STRUCT>
<NAME>GstPad</NAME>
struct GstPad {
  GstObject object;

  gchar *name;
  guint16 type;

  GstPadDirection direction;

  GstPad *peer;

  GstBuffer *bufpen;

  GstPadChainFunction chainfunc;
  GstPadPullFunction pullfunc;
  GstPadPushFunction pushfunc;
  GstPadQoSFunction qosfunc;

  GstObject *parent;
  GList *ghostparents;
};
</STRUCT>
<STRUCT>
<NAME>GstPadClass</NAME>
struct GstPadClass {
  GstObjectClass parent_class;
};
</STRUCT>
<FUNCTION>
<NAME>gst_pad_get_type</NAME>
<RETURNS>GtkType  </RETURNS>
void
</FUNCTION>
<FUNCTION>
<NAME>gst_pad_new</NAME>
<RETURNS>GstPad  *</RETURNS>
gchar *name,GstPadDirection direction
</FUNCTION>
<FUNCTION>
<NAME>gst_pad_destroy</NAME>
<RETURNS>void  </RETURNS>
GstPad *pad
</FUNCTION>
<FUNCTION>
<NAME>gst_pad_get_direction</NAME>
<RETURNS>GstPadDirection  </RETURNS>
GstPad *pad
</FUNCTION>
<FUNCTION>
<NAME>gst_pad_set_chain_function</NAME>
<RETURNS>void  </RETURNS>
GstPad *pad,GstPadChainFunction chain
</FUNCTION>
<FUNCTION>
<NAME>gst_pad_set_pull_function</NAME>
<RETURNS>void  </RETURNS>
GstPad *pad, GstPadPullFunction pull
</FUNCTION>
<FUNCTION>
<NAME>gst_pad_set_qos_function</NAME>
<RETURNS>void  </RETURNS>
GstPad *pad, GstPadQoSFunction qos
</FUNCTION>
<FUNCTION>
<NAME>gst_pad_get_type_id</NAME>
<RETURNS>guint16  </RETURNS>
GstPad *pad
</FUNCTION>
<FUNCTION>
<NAME>gst_pad_set_type_id</NAME>
<RETURNS>void  </RETURNS>
GstPad *pad,guint16 id
</FUNCTION>
<FUNCTION>
<NAME>gst_pad_set_name</NAME>
<RETURNS>void  </RETURNS>
GstPad *pad,gchar *name
</FUNCTION>
<FUNCTION>
<NAME>gst_pad_get_name</NAME>
<RETURNS>gchar  *</RETURNS>
GstPad *pad
</FUNCTION>
<MACRO>
<NAME>gst_pad_destroy</NAME>
#define gst_pad_destroy(pad) gst_object_destroy(GST_OBJECT(pad))
</MACRO>
<FUNCTION>
<NAME>gst_pad_set_parent</NAME>
<RETURNS>void  </RETURNS>
GstPad *pad,GstObject *parent
</FUNCTION>
<FUNCTION>
<NAME>gst_pad_add_ghost_parent</NAME>
<RETURNS>void  </RETURNS>
GstPad *pad,GstObject *parent
</FUNCTION>
<FUNCTION>
<NAME>gst_pad_remove_ghost_parent</NAME>
<RETURNS>void  </RETURNS>
GstPad *pad,GstObject *parent
</FUNCTION>
<FUNCTION>
<NAME>gst_pad_get_parent</NAME>
<RETURNS>GstObject  *</RETURNS>
GstPad *pad
</FUNCTION>
<FUNCTION>
<NAME>gst_pad_get_ghost_parents</NAME>
<RETURNS>GList  *</RETURNS>
GstPad *pad
</FUNCTION>
<FUNCTION>
<NAME>gst_pad_get_peer</NAME>
<RETURNS>GstPad  *</RETURNS>
GstPad *pad
</FUNCTION>
<FUNCTION>
<NAME>gst_pad_connect</NAME>
<RETURNS>void  </RETURNS>
GstPad *srcpad,GstPad *sinkpad
</FUNCTION>
<FUNCTION>
<NAME>gst_pad_disconnect</NAME>
<RETURNS>void  </RETURNS>
GstPad *srcpad,GstPad *sinkpad
</FUNCTION>
<FUNCTION>
<NAME>gst_pad_push</NAME>
<RETURNS>void  </RETURNS>
GstPad *pad,GstBuffer *buffer
</FUNCTION>
<FUNCTION>
<NAME>gst_pad_pull</NAME>
<RETURNS>GstBuffer  *</RETURNS>
GstPad *pad
</FUNCTION>
<FUNCTION>
<NAME>gst_pad_handle_qos</NAME>
<RETURNS>void  </RETURNS>
GstPad *pad, glong qos_message
</FUNCTION>
<FUNCTION>
<NAME>gst_pad_save_thyself</NAME>
<RETURNS>xmlNodePtr  </RETURNS>
GstPad *pad,xmlNodePtr parent
</FUNCTION>
<VARIABLE>
<NAME>gst_pipeline_details</NAME>
extern GstElementDetails gst_pipeline_details;
</VARIABLE>
<MACRO>
<NAME>GST_TYPE_PIPELINE</NAME>
#define GST_TYPE_PIPELINE \
  (gst_pipeline_get_type())
</MACRO>
<MACRO>
<NAME>GST_PIPELINE</NAME>
#define GST_PIPELINE(obj) \
  (GTK_CHECK_CAST((obj),GST_TYPE_PIPELINE,GstPipeline))
</MACRO>
<MACRO>
<NAME>GST_PIPELINE_CLASS</NAME>
#define GST_PIPELINE_CLASS(klass) \
  (GTK_CHECK_CLASS_CAST((klass),GST_TYPE_PIPELINE,GstPipelineClass))
</MACRO>
<MACRO>
<NAME>GST_IS_PIPELINE</NAME>
#define GST_IS_PIPELINE(obj) \
  (GTK_CHECK_TYPE((obj),GST_TYPE_PIPELINE))
</MACRO>
<MACRO>
<NAME>GST_IS_PIPELINE_CLASS</NAME>
#define GST_IS_PIPELINE_CLASS(obj) \
  (GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_PIPELINE))
</MACRO>
<STRUCT>
<NAME>GstPipeline</NAME>
</STRUCT>
<STRUCT>
<NAME>GstPipelineClass</NAME>
</STRUCT>
<STRUCT>
<NAME>GstPipeline</NAME>
struct GstPipeline {
  GstBin bin;
};
</STRUCT>
<STRUCT>
<NAME>GstPipelineClass</NAME>
struct GstPipelineClass {
  GstBinClass parent_class;
};
</STRUCT>
<FUNCTION>
<NAME>gst_pipeline_get_type</NAME>
<RETURNS>GtkType  </RETURNS>
void
</FUNCTION>
<FUNCTION>
<NAME>gst_pipeline_new</NAME>
<RETURNS>GstElement  *</RETURNS>
guchar *name
</FUNCTION>
<MACRO>
<NAME>gst_pipeline_destroy</NAME>
#define gst_pipeline_destroy(pipeline) gst_object_destroy(GST_OBJECT(pipeline))
</MACRO>
<FUNCTION>
<NAME>gst_pipeline_autoplug</NAME>
<RETURNS>gboolean  </RETURNS>
GstPipeline *pipeline
</FUNCTION>
<FUNCTION>
<NAME>gst_pipeline_iterate</NAME>
<RETURNS>void  </RETURNS>
GstPipeline *pipeline
</FUNCTION>
<STRUCT>
<NAME>GstPlugin</NAME>
</STRUCT>
<STRUCT>
<NAME>GstPluginElement</NAME>
</STRUCT>
<STRUCT>
<NAME>GstPlugin</NAME>
struct GstPlugin {
  gchar *name;			/* name of the plugin */
  gchar *longname;		/* long name of plugin */
  gchar *filename;		/* filename it came from */

  GList *types;			/* list of types provided */
  GList *elements;		/* list of elements provided */

  gboolean loaded;              /* if the plugin is in memory */
};
</STRUCT>
<USER_FUNCTION>
<NAME>GstPluginInitFunc</NAME>
<RETURNS>GstPlugin *</RETURNS>
GModule *module
</USER_FUNCTION>
<FUNCTION>
<NAME>gst_plugin_new</NAME>
<RETURNS>GstPlugin  *</RETURNS>
gchar *name
</FUNCTION>
<FUNCTION>
<NAME>gst_plugin_set_longname</NAME>
<RETURNS>void  </RETURNS>
GstPlugin *plugin,gchar *longname
</FUNCTION>
<FUNCTION>
<NAME>gst_plugin_load_all</NAME>
<RETURNS>void  </RETURNS>

</FUNCTION>
<FUNCTION>
<NAME>gst_plugin_load</NAME>
<RETURNS>gboolean  </RETURNS>
gchar *name
</FUNCTION>
<FUNCTION>
<NAME>gst_library_load</NAME>
<RETURNS>gboolean  </RETURNS>
gchar *name
</FUNCTION>
<FUNCTION>
<NAME>gst_plugin_load_absolute</NAME>
<RETURNS>gboolean  </RETURNS>
gchar *name
</FUNCTION>
<FUNCTION>
<NAME>gst_plugin_add_factory</NAME>
<RETURNS>void  </RETURNS>
GstPlugin *plugin,GstElementFactory *factory
</FUNCTION>
<FUNCTION>
<NAME>gst_plugin_add_type</NAME>
<RETURNS>void  </RETURNS>
GstPlugin *plugin,GstTypeFactory *factory
</FUNCTION>
<FUNCTION>
<NAME>gst_plugin_find</NAME>
<RETURNS>GstPlugin  *</RETURNS>
const gchar *name
</FUNCTION>
<FUNCTION>
<NAME>gst_plugin_get_list</NAME>
<RETURNS>GList  *</RETURNS>

</FUNCTION>
<FUNCTION>
<NAME>gst_plugin_find_elementfactory</NAME>
<RETURNS>GstElementFactory  *</RETURNS>
gchar *name
</FUNCTION>
<FUNCTION>
<NAME>gst_plugin_load_elementfactory</NAME>
<RETURNS>GstElementFactory  *</RETURNS>
gchar *name
</FUNCTION>
<FUNCTION>
<NAME>gst_plugin_load_typefactory</NAME>
<RETURNS>void  </RETURNS>
gchar *mime
</FUNCTION>
<FUNCTION>
<NAME>gst_plugin_save_thyself</NAME>
<RETURNS>xmlNodePtr  </RETURNS>
xmlNodePtr parent
</FUNCTION>
<FUNCTION>
<NAME>gst_plugin_load_thyself</NAME>
<RETURNS>void  </RETURNS>
xmlNodePtr parent
</FUNCTION>
<MACRO>
<NAME>GST_TYPE_SINK</NAME>
#define GST_TYPE_SINK \
  (gst_sink_get_type())
</MACRO>
<MACRO>
<NAME>GST_SINK</NAME>
#define GST_SINK(obj) \
  (GTK_CHECK_CAST((obj),GST_TYPE_SINK,GstSink))
</MACRO>
<MACRO>
<NAME>GST_SINK_CLASS</NAME>
#define GST_SINK_CLASS(klass) \
  (GTK_CHECK_CLASS_CAST((klass),GST_TYPE_SINK,GstSinkClass))
</MACRO>
<MACRO>
<NAME>GST_IS_SINK</NAME>
#define GST_IS_SINK(obj) \
  (GTK_CHECK_TYPE((obj),GST_TYPE_SINK))
</MACRO>
<MACRO>
<NAME>GST_IS_SINK_CLASS</NAME>
#define GST_IS_SINK_CLASS(obj) \
  (GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_SINK))
</MACRO>
<STRUCT>
<NAME>GstSink</NAME>
</STRUCT>
<STRUCT>
<NAME>GstSinkClass</NAME>
</STRUCT>
<STRUCT>
<NAME>GstSink</NAME>
struct GstSink {
  GstElement element;
};
</STRUCT>
<STRUCT>
<NAME>GstSinkClass</NAME>
struct GstSinkClass {
  GstElementClass parent_class;
};
</STRUCT>
<FUNCTION>
<NAME>gst_sink_get_type</NAME>
<RETURNS>GtkType  </RETURNS>
void
</FUNCTION>
<FUNCTION>
<NAME>gst_sink_new</NAME>
<RETURNS>GstObject  *</RETURNS>
gchar *name
</FUNCTION>
<MACRO>
<NAME>GST_TYPE_SRC</NAME>
#define GST_TYPE_SRC \
  (gst_src_get_type())
</MACRO>
<MACRO>
<NAME>GST_SRC</NAME>
#define GST_SRC(obj) \
  (GTK_CHECK_CAST((obj),GST_TYPE_SRC,GstSrc))
</MACRO>
<MACRO>
<NAME>GST_SRC_CLASS</NAME>
#define GST_SRC_CLASS(klass) \
  (GTK_CHECK_CLASS_CAST((klass),GST_TYPE_SRC,GstSrcClass))
</MACRO>
<MACRO>
<NAME>GST_IS_SRC</NAME>
#define GST_IS_SRC(obj) \
  (GTK_CHECK_TYPE((obj),GST_TYPE_SRC))
</MACRO>
<MACRO>
<NAME>GST_IS_SRC_CLASS</NAME>
#define GST_IS_SRC_CLASS(obj) \
  (GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_SRC))
</MACRO>
<ENUM>
<NAME>GstSrcFlags</NAME>
typedef enum {
  GST_SRC_ASYNC		= 1 << 0,
} GstSrcFlags;
</ENUM>
<MACRO>
<NAME>GST_SRC_FLAGS</NAME>
#define GST_SRC_FLAGS(obj) \
	(GST_SRC(obj)->flags)
</MACRO>
<MACRO>
<NAME>GST_SRC_ASYNC</NAME>
#define GST_SRC_ASYNC(obj) \
  ((GST_SRC_FLAGS(obj) & GST_SRC_ASYNC))
</MACRO>
<STRUCT>
<NAME>GstSrc</NAME>
</STRUCT>
<STRUCT>
<NAME>GstSrcClass</NAME>
</STRUCT>
<STRUCT>
<NAME>GstSrc</NAME>
struct GstSrc {
  GstElement element;
  gint32 flags;
};
</STRUCT>
<STRUCT>
<NAME>GstSrcClass</NAME>
struct GstSrcClass {
  GstElementClass parent_class;

  /* subclass functions */
  void (*push) (GstSrc *src);
  void (*push_region) (GstSrc *src,gulong offset,gulong size);

  /* signals */
  void (*eos) (GstSrc *src);
};
</STRUCT>
<MACRO>
<NAME>GST_SRC_SET_FLAGS</NAME>
#define GST_SRC_SET_FLAGS(src,flag) \
  G_STMT_START{ (GST_SRC_FLAGS (src) |= (flag)); }G_STMT_END
</MACRO>
<MACRO>
<NAME>GST_SRC_UNSET_FLAGS</NAME>
#define GST_SRC_UNSET_FLAGS(src,flag) \
	G_STMT_START{ (GST_SRC_FLAGS (src) &= ~(flag)); }G_STMT_END
</MACRO>
<FUNCTION>
<NAME>gst_src_get_type</NAME>
<RETURNS>GtkType  </RETURNS>
void
</FUNCTION>
<FUNCTION>
<NAME>gst_src_signal_eos</NAME>
<RETURNS>void  </RETURNS>
GstSrc *src
</FUNCTION>
<FUNCTION>
<NAME>gst_src_push</NAME>
<RETURNS>void  </RETURNS>
GstSrc *src
</FUNCTION>
<FUNCTION>
<NAME>gst_src_push_region</NAME>
<RETURNS>void  </RETURNS>
GstSrc *src,gulong offset,gulong size
</FUNCTION>
<MACRO>
<NAME>GST_TYPE_TEE</NAME>
#define GST_TYPE_TEE \
  (gst_tee_get_type())
</MACRO>
<MACRO>
<NAME>GST_TEE</NAME>
#define GST_TEE(obj) \
  (GTK_CHECK_CAST((obj),GST_TYPE_TEE,GstTee))
</MACRO>
<MACRO>
<NAME>GST_TEE_CLASS</NAME>
#define GST_TEE_CLASS(klass) \
  (GTK_CHECK_CLASS_CAST((klass),GST_TYPE_TEE,GstTeeClass))
</MACRO>
<MACRO>
<NAME>GST_IS_TEE</NAME>
#define GST_IS_TEE(obj) \
  (GTK_CHECK_TYPE((obj),GST_TYPE_TEE))
</MACRO>
<MACRO>
<NAME>GST_IS_TEE_CLASS</NAME>
#define GST_IS_TEE_CLASS(obj) \
  (GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_TEE)))
</MACRO>
<STRUCT>
<NAME>GstTee</NAME>
</STRUCT>
<STRUCT>
<NAME>GstTeeClass</NAME>
</STRUCT>
<STRUCT>
<NAME>GstTee</NAME>
struct GstTee {
  GstFilter filter;

  GstPad *sinkpad;

  gint numsrcpads;
  GSList *srcpads;
};
</STRUCT>
<STRUCT>
<NAME>GstTeeClass</NAME>
struct GstTeeClass {
  GstFilterClass parent_class;
};
</STRUCT>
<FUNCTION>
<NAME>gst_tee_get_type</NAME>
<RETURNS>GtkType  </RETURNS>
void
</FUNCTION>
<FUNCTION>
<NAME>gst_tee_new</NAME>
<RETURNS>GstElement  *</RETURNS>
gchar *name
</FUNCTION>
<FUNCTION>
<NAME>gst_tee_chain</NAME>
<RETURNS>void  </RETURNS>
GstPad *pad,GstBuffer *buf
</FUNCTION>
<FUNCTION>
<NAME>gst_tee_new_pad</NAME>
<RETURNS>gchar  *</RETURNS>
GstTee *tee
</FUNCTION>
<VARIABLE>
<NAME>gst_thread_details</NAME>
extern GstElementDetails gst_thread_details;
</VARIABLE>
<ENUM>
<NAME>GstThreadState</NAME>
typedef enum {
  GST_THREAD_CREATE		= (1 << 16),
  GST_THREAD_STATE_SPINNING	= (1 << 17),
  GST_THREAD_STATE_REAPING	= (1 << 18),
} GstThreadState;
</ENUM>
<MACRO>
<NAME>GST_TYPE_THREAD</NAME>
#define GST_TYPE_THREAD \
  (gst_thread_get_type())
</MACRO>
<MACRO>
<NAME>GST_THREAD</NAME>
#define GST_THREAD(obj) \
  (GTK_CHECK_CAST((obj),GST_TYPE_THREAD,GstThread))
</MACRO>
<MACRO>
<NAME>GST_THREAD_CLASS</NAME>
#define GST_THREAD_CLASS(klass) \
  (GTK_CHECK_CLASS_CAST((klass),GST_TYPE_THREAD,GstThreadClass))
</MACRO>
<MACRO>
<NAME>GST_IS_THREAD</NAME>
#define GST_IS_THREAD(obj) \
  (GTK_CHECK_TYPE((obj),GST_TYPE_THREAD))
</MACRO>
<MACRO>
<NAME>GST_IS_THREAD_CLASS</NAME>
#define GST_IS_THREAD_CLASS(obj) \
  (GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_THREAD)))
</MACRO>
<STRUCT>
<NAME>GstThread</NAME>
</STRUCT>
<STRUCT>
<NAME>GstThreadClass</NAME>
</STRUCT>
<STRUCT>
<NAME>GstThread</NAME>
struct GstThread {
  GstBin bin;

  pthread_t thread_id;		/* id of the thread, if any */
  GMutex *lock;			/* thread lock/condititon pair... */
  GCond *cond;			/* used to control the thread */
};
</STRUCT>
<STRUCT>
<NAME>GstThreadClass</NAME>
struct GstThreadClass {
  GstBinClass parent_class;
};
</STRUCT>
<FUNCTION>
<NAME>gst_thread_get_type</NAME>
<RETURNS>GtkType  </RETURNS>
void
</FUNCTION>
<FUNCTION>
<NAME>gst_thread_new</NAME>
<RETURNS>GstElement  *</RETURNS>
guchar *name
</FUNCTION>
<FUNCTION>
<NAME>gst_thread_main_loop</NAME>
<RETURNS>void  *</RETURNS>
void *arg
</FUNCTION>
<FUNCTION>
<NAME>gst_thread_iterate</NAME>
<RETURNS>void  </RETURNS>
GstThread *thread
</FUNCTION>
<FUNCTION>
<NAME>gst_trace_read_tsc</NAME>
<RETURNS>void  </RETURNS>
guint64 *dst
</FUNCTION>
<STRUCT>
<NAME>GstTrace</NAME>
</STRUCT>
<STRUCT>
<NAME>GstTraceEntry</NAME>
</STRUCT>
<STRUCT>
<NAME>GstTrace</NAME>
struct GstTrace {
  /* where this trace is going */
  gchar *filename;
  int fd;

  /* current buffer, size, head offset */
  GstTraceEntry *buf;
  gint bufsize;
  gint bufoffset;
};
</STRUCT>
<STRUCT>
<NAME>GstTraceEntry</NAME>
struct GstTraceEntry {
  guint64 timestamp;
  guint32 sequence;
  guint32 data;
  gchar message[112];
};
</STRUCT>
<FUNCTION>
<NAME>gst_trace_new</NAME>
<RETURNS>GstTrace  *</RETURNS>
guchar *filename,gint size
</FUNCTION>
<FUNCTION>
<NAME>gst_trace_destroy</NAME>
<RETURNS>void  </RETURNS>
GstTrace *trace
</FUNCTION>
<FUNCTION>
<NAME>gst_trace_flush</NAME>
<RETURNS>void  </RETURNS>
GstTrace *trace
</FUNCTION>
<MACRO>
<NAME>gst_trace_get_size</NAME>
#define gst_trace_get_size(trace) ((trace)->bufsize)
</MACRO>
<MACRO>
<NAME>gst_trace_get_offset</NAME>
#define gst_trace_get_offset(trace) ((trace)->bufoffset)
</MACRO>
<MACRO>
<NAME>gst_trace_get_remaining</NAME>
#define gst_trace_get_remaining(trace) ((trace)->bufsize - (trace)->bufoffset)
</MACRO>
<FUNCTION>
<NAME>gst_trace_set_default</NAME>
<RETURNS>void  </RETURNS>
GstTrace *trace
</FUNCTION>
<MACRO>
<NAME>TRACE_ENABLE</NAME>
#define TRACE_ENABLE
</MACRO>
<MACRO>
<NAME>gst_trace_add_entry</NAME>
#define gst_trace_add_entry(trace,seq,data,msg) \
  if (_gst_trace_on) { \
    _gst_trace_add_entry(trace,(guint32)seq,(guint32)data,msg); \
  }
</MACRO>
<MACRO>
<NAME>gst_trace_add_entry</NAME>
#define gst_trace_add_entry(trace,seq,data,msg)
</MACRO>
<USER_FUNCTION>
<NAME>GstTypeFindFunc</NAME>
<RETURNS>gboolean </RETURNS>
GstBuffer *buf,gpointer priv
</USER_FUNCTION>
<STRUCT>
<NAME>GstType</NAME>
</STRUCT>
<STRUCT>
<NAME>GstTypeFactory</NAME>
</STRUCT>
<STRUCT>
<NAME>GstType</NAME>
struct GstType {
  guint16 id;			/* type id (assigned) */

  gchar *mime;			/* MIME type */
  gchar *exts;			/* space-delimited list of extensions */

  GstTypeFindFunc typefindfunc;	/* typefind function */

  GList *srcs;			/* list of src objects for this type */
  GList *sinks;			/* list of sink objects for type */

  GHashTable *converters;       /* a hashtable of factories that can convert
				   from this type to destination type. The
				   factories are indexed by destination type */
};
</STRUCT>
<STRUCT>
<NAME>GstTypeFactory</NAME>
struct GstTypeFactory {
  gchar *mime;
  gchar *exts;
  GstTypeFindFunc typefindfunc;
};
</STRUCT>
<FUNCTION>
<NAME>gst_type_register</NAME>
<RETURNS>guint16  </RETURNS>
GstTypeFactory *factory
</FUNCTION>
<FUNCTION>
<NAME>gst_type_find_by_mime</NAME>
<RETURNS>guint16  </RETURNS>
gchar *mime
</FUNCTION>
<FUNCTION>
<NAME>gst_type_find_by_ext</NAME>
<RETURNS>guint16  </RETURNS>
gchar *ext
</FUNCTION>
<FUNCTION>
<NAME>gst_type_add_src</NAME>
<RETURNS>void  </RETURNS>
guint16 id,GstElementFactory *src
</FUNCTION>
<FUNCTION>
<NAME>gst_type_add_sink</NAME>
<RETURNS>void  </RETURNS>
guint16 id,GstElementFactory *sink
</FUNCTION>
<FUNCTION>
<NAME>gst_type_get_srcs</NAME>
<RETURNS>GList  *</RETURNS>
guint16 id
</FUNCTION>
<FUNCTION>
<NAME>gst_type_get_sinks</NAME>
<RETURNS>GList  *</RETURNS>
guint16 id
</FUNCTION>
<FUNCTION>
<NAME>gst_type_find_by_id</NAME>
<RETURNS>GstType  *</RETURNS>
guint16 id
</FUNCTION>
<FUNCTION>
<NAME>gst_type_get_sink_to_src</NAME>
<RETURNS>GList  *</RETURNS>
guint16 sinkid, guint16 srcid
</FUNCTION>
<FUNCTION>
<NAME>gst_type_get_list</NAME>
<RETURNS>GList  *</RETURNS>

</FUNCTION>
<FUNCTION>
<NAME>gst_type_dump</NAME>
<RETURNS>void  </RETURNS>

</FUNCTION>
<FUNCTION>
<NAME>gst_type_save_thyself</NAME>
<RETURNS>xmlNodePtr  </RETURNS>
GstType *type, xmlNodePtr parent
</FUNCTION>
<FUNCTION>
<NAME>gst_type_load_thyself</NAME>
<RETURNS>guint16  </RETURNS>
xmlNodePtr parent
</FUNCTION>
<FUNCTION>
<NAME>gst_typefactory_save_thyself</NAME>
<RETURNS>xmlNodePtr  </RETURNS>
GstTypeFactory *factory, xmlNodePtr parent
</FUNCTION>
<FUNCTION>
<NAME>gst_typefactory_load_thyself</NAME>
<RETURNS>GstTypeFactory  *</RETURNS>
xmlNodePtr parent
</FUNCTION>
<FUNCTION>
<NAME>gst_util_get_int_arg</NAME>
<RETURNS>gint  </RETURNS>
GtkObject *object,guchar *argname
</FUNCTION>
<FUNCTION>
<NAME>gst_util_get_long_arg</NAME>
<RETURNS>glong  </RETURNS>
GtkObject *object,guchar *argname
</FUNCTION>
<FUNCTION>
<NAME>gst_util_get_float_arg</NAME>
<RETURNS>gfloat  </RETURNS>
GtkObject *object,guchar *argname
</FUNCTION>
<FUNCTION>
<NAME>gst_util_get_double_arg</NAME>
<RETURNS>gdouble  </RETURNS>
GtkObject *object,guchar *argname
</FUNCTION>
<FUNCTION>
<NAME>gst_util_get_string_arg</NAME>
<RETURNS>guchar  *</RETURNS>
GtkObject *object,guchar *argname
</FUNCTION>
<FUNCTION>
<NAME>gst_util_get_pointer_arg</NAME>
<RETURNS>gpointer  </RETURNS>
GtkObject *object,guchar *argname
</FUNCTION>
<FUNCTION>
<NAME>gst_util_get_widget_arg</NAME>
<RETURNS>GtkWidget  *</RETURNS>
GtkObject *object,guchar *argname
</FUNCTION>
<FUNCTION>
<NAME>gst_util_dump_mem</NAME>
<RETURNS>void  </RETURNS>
guchar *mem, guint size
</FUNCTION>
<FUNCTION>
<NAME>gst_xml_write</NAME>
<RETURNS>xmlDocPtr  </RETURNS>
GstElement *element
</FUNCTION>
<MACRO>
<NAME>GST_BUFFER_POOL</NAME>
#define GST_BUFFER_POOL(buf) \
  ((GstBufferPool *)(buf))
</MACRO>
<STRUCT>
<NAME>GstBufferPool</NAME>
</STRUCT>
<USER_FUNCTION>
<NAME>GstBufferPoolCreateFunction</NAME>
<RETURNS>GstBuffer *</RETURNS>
GstBufferPool *pool, gpointer user_data
</USER_FUNCTION>
<USER_FUNCTION>
<NAME>GstBufferPoolDestroyFunction</NAME>
<RETURNS>void </RETURNS>
GstBufferPool *pool, GstBuffer *buffer, gpointer user_data
</USER_FUNCTION>
<STRUCT>
<NAME>GstBufferPool</NAME>
struct GstBufferPool {
  /* will be called when a new buffer is to be created */
  GstBufferPoolCreateFunction new_buffer;
  /* user data to pass with the new_buffer function */
  gpointer new_user_data;

  gpointer destroy_user_data;
  GstBufferPoolDestroyFunction destroy_buffer;
};
</STRUCT>
<FUNCTION>
<NAME>gst_buffer_pool_new</NAME>
<RETURNS>GstBufferPool  *</RETURNS>

</FUNCTION>
<FUNCTION>
<NAME>gst_buffer_pool_new_buffer</NAME>
<RETURNS>GstBuffer  *</RETURNS>
GstBufferPool *pool
</FUNCTION>
<FUNCTION>
<NAME>gst_buffer_pool_destroy_buffer</NAME>
<RETURNS>void  </RETURNS>
GstBufferPool *pool, GstBuffer *buffer
</FUNCTION>
<FUNCTION>
<NAME>gst_buffer_pool_set_create_function</NAME>
<RETURNS>void  </RETURNS>
GstBufferPool *pool, GstBufferPoolCreateFunction create, gpointer user_data
</FUNCTION>
<FUNCTION>
<NAME>gst_buffer_pool_set_destroy_function</NAME>
<RETURNS>void  </RETURNS>
GstBufferPool *pool, GstBufferPoolDestroyFunction destroy, gpointer user_data
</FUNCTION>
<FUNCTION>
<NAME>gst_buffer_pool_destroy</NAME>
<RETURNS>void  </RETURNS>
GstBufferPool *pool
</FUNCTION>
<MACRO>
<NAME>GST_CPU_FLAG_MMX</NAME>
#define  GST_CPU_FLAG_MMX 		(1 << 0)
</MACRO>
<MACRO>
<NAME>GST_CPU_FLAG_SSE</NAME>
#define  GST_CPU_FLAG_SSE 		(1 << 1)
</MACRO>
<FUNCTION>
<NAME>gst_cpu_get_flags</NAME>
<RETURNS>guint32  </RETURNS>

</FUNCTION>
<MACRO>
<NAME>GST_TYPE_ASYNCDISKSRC</NAME>
#define GST_TYPE_ASYNCDISKSRC \
  (gst_asyncdisksrc_get_type())
</MACRO>
<MACRO>
<NAME>GST_ASYNCDISKSRC</NAME>
#define GST_ASYNCDISKSRC(obj) \
  (GTK_CHECK_CAST((obj),GST_TYPE_ASYNCDISKSRC,GstAsyncDiskSrc))
</MACRO>
<MACRO>
<NAME>GST_ASYNCDISKSRC_CLASS</NAME>
#define GST_ASYNCDISKSRC_CLASS(klass) \
  (GTK_CHECK_CLASS_CAST((klass),GST_TYPE_ASYNCDISKSRC,GstAsyncDiskSrcClass))
</MACRO>
<MACRO>
<NAME>GST_IS_ASYNCDISKSRC</NAME>
#define GST_IS_ASYNCDISKSRC(obj) \
  (GTK_CHECK_TYPE((obj),GST_TYPE_ASYNCDISKSRC))
</MACRO>
<MACRO>
<NAME>GST_IS_ASYNCDISKSRC_CLASS</NAME>
#define GST_IS_ASYNCDISKSRC_CLASS(obj) \
  (GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_ASYNCDISKSRC))
</MACRO>
<ENUM>
<NAME>GstAsyncDiskSrcFlags</NAME>
typedef enum {
  GST_ASYNCDISKSRC_OPEN	= (1 << 16),
} GstAsyncDiskSrcFlags;
</ENUM>
<STRUCT>
<NAME>GstAsyncDiskSrc</NAME>
</STRUCT>
<STRUCT>
<NAME>GstAsyncDiskSrcClass</NAME>
</STRUCT>
<STRUCT>
<NAME>GstAsyncDiskSrc</NAME>
struct GstAsyncDiskSrc {
  GstSrc src;
  /* pads */
  GstPad *srcpad;

  /* filename */
  gchar *filename;
  /* fd */
  gint fd;

  /* mapping parameters */
  gulong size;				/* how long is the file? */
  guchar *map;				/* where the file is mapped to */

  /* details for fallback synchronous read */
  gulong curoffset;			/* current offset in file */
  gulong bytes_per_read;		/* bytes per read */

  gulong seq;				/* buffer sequence number */
};
</STRUCT>
<STRUCT>
<NAME>GstAsyncDiskSrcClass</NAME>
struct GstAsyncDiskSrcClass {
  GstSrcClass parent_class;
};
</STRUCT>
<FUNCTION>
<NAME>gst_asyncdisksrc_get_type</NAME>
<RETURNS>GtkType  </RETURNS>
void
</FUNCTION>
<MACRO>
<NAME>GST_TYPE_AUDIOSINK</NAME>
#define GST_TYPE_AUDIOSINK \
  (gst_audiosink_get_type())
</MACRO>
<MACRO>
<NAME>GST_AUDIOSINK</NAME>
#define GST_AUDIOSINK(obj) \
  (GTK_CHECK_CAST((obj),GST_TYPE_AUDIOSINK,GstAudioSink))
</MACRO>
<MACRO>
<NAME>GST_AUDIOSINK_CLASS</NAME>
#define GST_AUDIOSINK_CLASS(klass) \
  (GTK_CHECK_CLASS_CAST((klass),GST_TYPE_AUDIOSINK,GstAudioSinkClass))
</MACRO>
<MACRO>
<NAME>GST_IS_AUDIOSINK</NAME>
#define GST_IS_AUDIOSINK(obj) \
  (GTK_CHECK_TYPE((obj),GST_TYPE_AUDIOSINK))
</MACRO>
<MACRO>
<NAME>GST_IS_AUDIOSINK_CLASS</NAME>
#define GST_IS_AUDIOSINK_CLASS(obj) \
  (GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_AUDIOSINK))
</MACRO>
<ENUM>
<NAME>GstAudioSinkFlags</NAME>
typedef enum {
  GST_AUDIOSINK_OPEN		= (1 << 16),
} GstAudioSinkFlags;
</ENUM>
<STRUCT>
<NAME>GstAudioSink</NAME>
</STRUCT>
<STRUCT>
<NAME>GstAudioSinkClass</NAME>
</STRUCT>
<STRUCT>
<NAME>GstAudioSink</NAME>
struct GstAudioSink {
  GstSink sink;

  GstPad *sinkpad;

  //GstClockTime clocktime;
  GstClock *clock;
  /* soundcard state */
  int fd;
  int caps; /* the capabilities */
  gint format;
  gint channels;
  gint frequency;
  gboolean mute;
};
</STRUCT>
<STRUCT>
<NAME>GstAudioSinkClass</NAME>
struct GstAudioSinkClass {
  GstSinkClass parent_class;

  /* signals */
  void (*handoff) (GstElement *element,GstPad *pad);
};
</STRUCT>
<FUNCTION>
<NAME>gst_audiosink_get_type</NAME>
<RETURNS>GtkType  </RETURNS>
void
</FUNCTION>
<FUNCTION>
<NAME>gst_audiosink_factory_init</NAME>
<RETURNS>gboolean  </RETURNS>
GstElementFactory *factory
</FUNCTION>
<MACRO>
<NAME>GST_TYPE_AUDIOSRC</NAME>
#define GST_TYPE_AUDIOSRC \
  (gst_audiosrc_get_type())
</MACRO>
<MACRO>
<NAME>GST_AUDIOSRC</NAME>
#define GST_AUDIOSRC(obj) \
  (GTK_CHECK_CAST((obj),GST_TYPE_AUDIOSRC,GstAudioSrc))
</MACRO>
<MACRO>
<NAME>GST_AUDIOSRC_CLASS</NAME>
#define GST_AUDIOSRC_CLASS(klass) \
  (GTK_CHECK_CLASS_CAST((klass),GST_TYPE_AUDIOSRC,GstAudioSrcClass))
</MACRO>
<MACRO>
<NAME>GST_IS_AUDIOSRC</NAME>
#define GST_IS_AUDIOSRC(obj) \
  (GTK_CHECK_TYPE((obj),GST_TYPE_AUDIOSRC))
</MACRO>
<MACRO>
<NAME>GST_IS_AUDIOSRC_CLASS</NAME>
#define GST_IS_AUDIOSRC_CLASS(obj) \
  (GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_AUDIOSRC)))
</MACRO>
<ENUM>
<NAME>GstAudioSrcFlags</NAME>
typedef enum {
  GST_AUDIOSRC_OPEN		= (1 < 16),
} GstAudioSrcFlags;
</ENUM>
<STRUCT>
<NAME>GstAudioSrc</NAME>
</STRUCT>
<STRUCT>
<NAME>GstAudioSrcClass</NAME>
</STRUCT>
<STRUCT>
<NAME>GstAudioSrc</NAME>
struct GstAudioSrc {
  GstSrc src;

  /* pads */
  GstPad *srcpad;

  /* sound card */
  gint fd;

  /* audio parameters */
  gint format;
  gint channels;
  gint frequency;

  /* blocking */
  gulong curoffset;
  gulong bytes_per_read;

  gulong seq;

  MetaAudioRaw *meta;
};
</STRUCT>
<STRUCT>
<NAME>GstAudioSrcClass</NAME>
struct GstAudioSrcClass {
  GstSrcClass parent_class;
};
</STRUCT>
<FUNCTION>
<NAME>gst_audiosrc_get_type</NAME>
<RETURNS>GtkType  </RETURNS>
void
</FUNCTION>
<VARIABLE>
<NAME>gst_disksrc_details</NAME>
extern GstElementDetails gst_disksrc_details;
</VARIABLE>
<MACRO>
<NAME>GST_TYPE_DISKSRC</NAME>
#define GST_TYPE_DISKSRC \
  (gst_disksrc_get_type())
</MACRO>
<MACRO>
<NAME>GST_DISKSRC</NAME>
#define GST_DISKSRC(obj) \
  (GTK_CHECK_CAST((obj),GST_TYPE_DISKSRC,GstDiskSrc))
</MACRO>
<MACRO>
<NAME>GST_DISKSRC_CLASS</NAME>
#define GST_DISKSRC_CLASS(klass) \
  (GTK_CHECK_CLASS_CAST((klass),GST_TYPE_DISKSRC,GstDiskSrcClass))
</MACRO>
<MACRO>
<NAME>GST_IS_DISKSRC</NAME>
#define GST_IS_DISKSRC(obj) \
  (GTK_CHECK_TYPE((obj),GST_TYPE_DISKSRC))
</MACRO>
<MACRO>
<NAME>GST_IS_DISKSRC_CLASS</NAME>
#define GST_IS_DISKSRC_CLASS(obj) \
  (GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_DISKSRC))
</MACRO>
<ENUM>
<NAME>GstDiskSrcFlags</NAME>
typedef enum {
  GST_DISKSRC_OPEN		= (1 << 16),
} GstDiskSrcFlags;
</ENUM>
<STRUCT>
<NAME>GstDiskSrc</NAME>
</STRUCT>
<STRUCT>
<NAME>GstDiskSrcClass</NAME>
</STRUCT>
<STRUCT>
<NAME>GstDiskSrc</NAME>
struct GstDiskSrc {
  GstSrc src;
  /* pads */
  GstPad *srcpad;

  /* file state */
  gchar *filename;
  gint fd;

  gulong curoffset;			/* current offset in file */
  gulong bytes_per_read;		/* bytes per read */
  gboolean new_seek;

  gulong seq;				/* buffer sequence number */
  gulong size;				
};
</STRUCT>
<STRUCT>
<NAME>GstDiskSrcClass</NAME>
struct GstDiskSrcClass {
  GstSrcClass parent_class;
};
</STRUCT>
<FUNCTION>
<NAME>gst_disksrc_get_type</NAME>
<RETURNS>GtkType  </RETURNS>
void
</FUNCTION>
<MACRO>
<NAME>GST_TYPE_ESDSINK</NAME>
#define GST_TYPE_ESDSINK \
  (gst_esdsink_get_type())
</MACRO>
<MACRO>
<NAME>GST_ESDSINK</NAME>
#define GST_ESDSINK(obj) \
  (GTK_CHECK_CAST((obj),GST_TYPE_ESDSINK,GstEsdSink))
</MACRO>
<MACRO>
<NAME>GST_ESDSINK_CLASS</NAME>
#define GST_ESDSINK_CLASS(klass) \
  (GTK_CHECK_CLASS_CAST((klass),GST_TYPE_ESDSINK,GstEsdSinkClass))
</MACRO>
<MACRO>
<NAME>GST_IS_ESDSINK</NAME>
#define GST_IS_ESDSINK(obj) \
  (GTK_CHECK_TYPE((obj),GST_TYPE_ESDSINK))
</MACRO>
<MACRO>
<NAME>GST_IS_ESDSINK_CLASS</NAME>
#define GST_IS_ESDSINK_CLASS(obj) \
  (GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_ESDSINK)))
</MACRO>
<STRUCT>
<NAME>GstEsdSink</NAME>
</STRUCT>
<STRUCT>
<NAME>GstEsdSinkClass</NAME>
</STRUCT>
<STRUCT>
<NAME>GstEsdSink</NAME>
struct GstEsdSink {
  GstFilter filter;

  GstPad *sinkpad;

  /* soundcard state */
  
  int fd;
  gint format;
  gint channels;
  gint frequency;
};
</STRUCT>
<STRUCT>
<NAME>GstEsdSinkClass</NAME>
struct GstEsdSinkClass {
  GstFilterClass parent_class;

  /* signals */
  void (*handoff) (GstElement *element,GstPad *pad);
};
</STRUCT>
<FUNCTION>
<NAME>gst_esdsink_get_type</NAME>
<RETURNS>GtkType  </RETURNS>
void
</FUNCTION>
<MACRO>
<NAME>GST_TYPE_FAKESINK</NAME>
#define GST_TYPE_FAKESINK \
  (gst_fakesink_get_type())
</MACRO>
<MACRO>
<NAME>GST_FAKESINK</NAME>
#define GST_FAKESINK(obj) \
  (GTK_CHECK_CAST((obj),GST_TYPE_FAKESINK,GstFakeSink))
</MACRO>
<MACRO>
<NAME>GST_FAKESINK_CLASS</NAME>
#define GST_FAKESINK_CLASS(klass) \
  (GTK_CHECK_CLASS_CAST((klass),GST_TYPE_FAKESINK,GstFakeSinkClass))
</MACRO>
<MACRO>
<NAME>GST_IS_FAKESINK</NAME>
#define GST_IS_FAKESINK(obj) \
  (GTK_CHECK_TYPE((obj),GST_TYPE_FAKESINK))
</MACRO>
<MACRO>
<NAME>GST_IS_FAKESINK_CLASS</NAME>
#define GST_IS_FAKESINK_CLASS(obj) \
  (GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_FAKESINK)))
</MACRO>
<STRUCT>
<NAME>GstFakeSink</NAME>
</STRUCT>
<STRUCT>
<NAME>GstFakeSinkClass</NAME>
</STRUCT>
<STRUCT>
<NAME>GstFakeSink</NAME>
struct GstFakeSink {
  GstSink sink;

  GstPad *sinkpad;
};
</STRUCT>
<STRUCT>
<NAME>GstFakeSinkClass</NAME>
struct GstFakeSinkClass {
  GstSinkClass parent_class;
};
</STRUCT>
<FUNCTION>
<NAME>gst_fakesink_get_type</NAME>
<RETURNS>GtkType  </RETURNS>
void
</FUNCTION>
<MACRO>
<NAME>GST_TYPE_FAKESRC</NAME>
#define GST_TYPE_FAKESRC \
  (gst_fakesrc_get_type())
</MACRO>
<MACRO>
<NAME>GST_FAKESRC</NAME>
#define GST_FAKESRC(obj) \
  (GTK_CHECK_CAST((obj),GST_TYPE_FAKESRC,GstFakeSrc))
</MACRO>
<MACRO>
<NAME>GST_FAKESRC_CLASS</NAME>
#define GST_FAKESRC_CLASS(klass) \
  (GTK_CHECK_CLASS_CAST((klass),GST_TYPE_FAKESRC,GstFakeSrcClass))
</MACRO>
<MACRO>
<NAME>GST_IS_FAKESRC</NAME>
#define GST_IS_FAKESRC(obj) \
  (GTK_CHECK_TYPE((obj),GST_TYPE_FAKESRC))
</MACRO>
<MACRO>
<NAME>GST_IS_FAKESRC_CLASS</NAME>
#define GST_IS_FAKESRC_CLASS(obj) \
  (GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_FAKESRC)))
</MACRO>
<STRUCT>
<NAME>GstFakeSrc</NAME>
</STRUCT>
<STRUCT>
<NAME>GstFakeSrcClass</NAME>
</STRUCT>
<STRUCT>
<NAME>GstFakeSrc</NAME>
struct GstFakeSrc {
  GstSrc src;

  GstPad *srcpad;
};
</STRUCT>
<STRUCT>
<NAME>GstFakeSrcClass</NAME>
struct GstFakeSrcClass {
  GstSrcClass parent_class;
};
</STRUCT>
<FUNCTION>
<NAME>gst_fakesrc_get_type</NAME>
<RETURNS>GtkType  </RETURNS>
void
</FUNCTION>
<MACRO>
<NAME>GST_TYPE_FDSINK</NAME>
#define GST_TYPE_FDSINK \
  (gst_fdsink_get_type())
</MACRO>
<MACRO>
<NAME>GST_FDSINK</NAME>
#define GST_FDSINK(obj) \
  (GTK_CHECK_CAST((obj),GST_TYPE_FDSINK,GstFdSink))
</MACRO>
<MACRO>
<NAME>GST_FDSINK_CLASS</NAME>
#define GST_FDSINK_CLASS(klass) \
  (GTK_CHECK_CLASS_CAST((klass),GST_TYPE_FDSINK,GstFdSinkClass))
</MACRO>
<MACRO>
<NAME>GST_IS_FDSINK</NAME>
#define GST_IS_FDSINK(obj) \
  (GTK_CHECK_TYPE((obj),GST_TYPE_FDSINK))
</MACRO>
<MACRO>
<NAME>GST_IS_FDSINK_CLASS</NAME>
#define GST_IS_FDSINK_CLASS(obj) \
  (GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_FDSINK)))
</MACRO>
<STRUCT>
<NAME>GstFdSink</NAME>
</STRUCT>
<STRUCT>
<NAME>GstFdSinkClass</NAME>
</STRUCT>
<STRUCT>
<NAME>GstFdSink</NAME>
struct GstFdSink {
  GstSink sink;

  GstPad *sinkpad;

  int fd;
};
</STRUCT>
<STRUCT>
<NAME>GstFdSinkClass</NAME>
struct GstFdSinkClass {
  GstSinkClass parent_class;
};
</STRUCT>
<FUNCTION>
<NAME>gst_fdsink_get_type</NAME>
<RETURNS>GtkType  </RETURNS>
void
</FUNCTION>
<MACRO>
<NAME>GST_TYPE_FDSRC</NAME>
#define GST_TYPE_FDSRC \
  (gst_fdsrc_get_type())
</MACRO>
<MACRO>
<NAME>GST_FDSRC</NAME>
#define GST_FDSRC(obj) \
  (GTK_CHECK_CAST((obj),GST_TYPE_FDSRC,GstFdSrc))
</MACRO>
<MACRO>
<NAME>GST_FDSRC_CLASS</NAME>
#define GST_FDSRC_CLASS(klass) \
  (GTK_CHECK_CLASS_CAST((klass),GST_TYPE_FDSRC,GstFdSrcClass))
</MACRO>
<MACRO>
<NAME>GST_IS_FDSRC</NAME>
#define GST_IS_FDSRC(obj) \
  (GTK_CHECK_TYPE((obj),GST_TYPE_FDSRC))
</MACRO>
<MACRO>
<NAME>GST_IS_FDSRC_CLASS</NAME>
#define GST_IS_FDSRC_CLASS(obj) \
  (GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_FDSRC)))
</MACRO>
<STRUCT>
<NAME>GstFdSrc</NAME>
</STRUCT>
<STRUCT>
<NAME>GstFdSrcClass</NAME>
</STRUCT>
<STRUCT>
<NAME>GstFdSrc</NAME>
struct GstFdSrc {
  GstSrc src;
  /* pads */
  GstPad *srcpad;

  /* fd */
  gint fd;

  gulong curoffset;			/* current offset in file */
  gulong bytes_per_read;		/* bytes per read */

  gulong seq;				/* buffer sequence number */
};
</STRUCT>
<STRUCT>
<NAME>GstFdSrcClass</NAME>
struct GstFdSrcClass {
  GstSrcClass parent_class;
};
</STRUCT>
<FUNCTION>
<NAME>gst_fdsrc_get_type</NAME>
<RETURNS>GtkType  </RETURNS>
void
</FUNCTION>
<MACRO>
<NAME>GST_TYPE_HTTPSRC</NAME>
#define GST_TYPE_HTTPSRC \
  (gst_httpsrc_get_type())
</MACRO>
<MACRO>
<NAME>GST_HTTPSRC</NAME>
#define GST_HTTPSRC(obj) \
  (GTK_CHECK_CAST((obj),GST_TYPE_HTTPSRC,GstHttpSrc))
</MACRO>
<MACRO>
<NAME>GST_HTTPSRC_CLASS</NAME>
#define GST_HTTPSRC_CLASS(klass) \
  (GTK_CHECK_CLASS_CAST((klass),GST_TYPE_HTTPSRC,GstHttpSrcClass))
</MACRO>
<MACRO>
<NAME>GST_IS_HTTPSRC</NAME>
#define GST_IS_HTTPSRC(obj) \
  (GTK_CHECK_TYPE((obj),GST_TYPE_HTTPSRC))
</MACRO>
<MACRO>
<NAME>GST_IS_HTTPSRC_CLASS</NAME>
#define GST_IS_HTTPSRC_CLASS(obj) \
  (GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_HTTPSRC)))
</MACRO>
<ENUM>
<NAME>GstHttpSrcFlags</NAME>
typedef enum {
  GST_HTTPSRC_OPEN		= (1 << 16),
} GstHttpSrcFlags;
</ENUM>
<STRUCT>
<NAME>GstHttpSrc</NAME>
</STRUCT>
<STRUCT>
<NAME>GstHttpSrcClass</NAME>
</STRUCT>
<STRUCT>
<NAME>GstHttpSrc</NAME>
struct GstHttpSrc {
  GstSrc src;
  /* pads */
  GstPad *srcpad;

  gchar *url;
  ghttp_request *request;
  int fd;

  gulong curoffset;			/* current offset in file */
  gulong bytes_per_read;		/* bytes per read */
};
</STRUCT>
<STRUCT>
<NAME>GstHttpSrcClass</NAME>
struct GstHttpSrcClass {
  GstSrcClass parent_class;
};
</STRUCT>
<FUNCTION>
<NAME>gst_httpsrc_get_type</NAME>
<RETURNS>GtkType  </RETURNS>
void
</FUNCTION>
<MACRO>
<NAME>GST_TYPE_IDENTITY</NAME>
#define GST_TYPE_IDENTITY \
  (gst_identity_get_type())
</MACRO>
<MACRO>
<NAME>GST_IDENTITY</NAME>
#define GST_IDENTITY(obj) \
  (GTK_CHECK_CAST((obj),GST_TYPE_IDENTITY,GstIdentity))
</MACRO>
<MACRO>
<NAME>GST_IDENTITY_CLASS</NAME>
#define GST_IDENTITY_CLASS(klass) \
  (GTK_CHECK_CLASS_CAST((klass),GST_TYPE_IDENTITY,GstIdentityClass))
</MACRO>
<MACRO>
<NAME>GST_IS_IDENTITY</NAME>
#define GST_IS_IDENTITY(obj) \
  (GTK_CHECK_TYPE((obj),GST_TYPE_IDENTITY))
</MACRO>
<MACRO>
<NAME>GST_IS_IDENTITY_CLASS</NAME>
#define GST_IS_IDENTITY_CLASS(obj) \
  (GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_IDENTITY)))
</MACRO>
<STRUCT>
<NAME>GstIdentity</NAME>
</STRUCT>
<STRUCT>
<NAME>GstIdentityClass</NAME>
</STRUCT>
<STRUCT>
<NAME>GstIdentity</NAME>
struct GstIdentity {
  GstFilter filter;

  GstPad *sinkpad;
  GstPad *srcpad;

  gint control;
};
</STRUCT>
<STRUCT>
<NAME>GstIdentityClass</NAME>
struct GstIdentityClass {
  GstFilterClass parent_class;
};
</STRUCT>
<FUNCTION>
<NAME>gst_identity_get_type</NAME>
<RETURNS>GtkType  </RETURNS>
void
</FUNCTION>
<MACRO>
<NAME>GST_TYPE_QUEUE</NAME>
#define GST_TYPE_QUEUE \
  (gst_queue_get_type())
</MACRO>
<MACRO>
<NAME>GST_QUEUE</NAME>
#define GST_QUEUE(obj) \
  (GTK_CHECK_CAST((obj),GST_TYPE_QUEUE,GstQueue))
</MACRO>
<MACRO>
<NAME>GST_QUEUE_CLASS</NAME>
#define GST_QUEUE_CLASS(klass) \
  (GTK_CHECK_CLASS_CAST((klass),GST_TYPE_QUEUE,GstQueueClass))
</MACRO>
<MACRO>
<NAME>GST_IS_QUEUE</NAME>
#define GST_IS_QUEUE(obj) \
  (GTK_CHECK_TYPE((obj),GST_TYPE_QUEUE))
</MACRO>
<MACRO>
<NAME>GST_IS_QUEUE_CLASS</NAME>
#define GST_IS_QUEUE_CLASS(obj) \
  (GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_QUEUE))
</MACRO>
<STRUCT>
<NAME>GstQueue</NAME>
</STRUCT>
<STRUCT>
<NAME>GstQueueClass</NAME>
</STRUCT>
<STRUCT>
<NAME>GstQueue</NAME>
struct GstQueue {
  GstConnection Connection;

  GstPad *sinkpad;
  GstPad *srcpad;

  /* the queue of buffers we're keeping our grubby hands on */
  GList *queue;
  GList *tail;		/* have to keep track of this myself */

  gint level_buffers;	/* number of buffers queued here */
  gint max_buffers;	/* maximum number of buffers queued here */
  gint level_bytes;	/* number of bytes queued here */
  gint size_buffers;	/* size of queue in buffers */
  gint size_bytes;	/* size of queue in bytes */

  GMutex *emptylock;	/* used when the queue is empty */
  GCond *emptycond;
  GMutex *fulllock;	/* used when the queue is full */
  GCond *fullcond;
};
</STRUCT>
<STRUCT>
<NAME>GstQueueClass</NAME>
struct GstQueueClass {
  GstConnectionClass parent_class;
};
</STRUCT>
<FUNCTION>
<NAME>gst_queue_get_type</NAME>
<RETURNS>GtkType  </RETURNS>
void
</FUNCTION>
<MACRO>
<NAME>GST_TYPE_SINESRC</NAME>
#define GST_TYPE_SINESRC \
  (gst_sinesrc_get_type())
</MACRO>
<MACRO>
<NAME>GST_SINESRC</NAME>
#define GST_SINESRC(obj) \
  (GTK_CHECK_CAST((obj),GST_TYPE_SINESRC,GstSineSrc))
</MACRO>
<MACRO>
<NAME>GST_SINESRC_CLASS</NAME>
#define GST_SINESRC_CLASS(klass) \
  (GTK_CHECK_CLASS_CAST((klass),GST_TYPE_SINESRC,GstSineSrcClass))
</MACRO>
<MACRO>
<NAME>GST_IS_SINESRC</NAME>
#define GST_IS_SINESRC(obj) \
  (GTK_CHECK_TYPE((obj),GST_TYPE_SINESRC))
</MACRO>
<MACRO>
<NAME>GST_IS_SINESRC_CLASS</NAME>
#define GST_IS_SINESRC_CLASS(obj) \
  (GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_SINESRC)))
</MACRO>
<STRUCT>
<NAME>GstSineSrc</NAME>
</STRUCT>
<STRUCT>
<NAME>GstSineSrcClass</NAME>
</STRUCT>
<STRUCT>
<NAME>GstSineSrc</NAME>
struct GstSineSrc {
  GstSrc src;

  /* pads */
  GstPad *srcpad;

  /* parameters */
  gdouble volume;
  gint freq;

  /* audio parameters */
  gint format;
  gint channels;
  gint frequency;

  gulong seq;

  MetaAudioRaw meta;
  gboolean sentmeta;
};
</STRUCT>
<STRUCT>
<NAME>GstSineSrcClass</NAME>
struct GstSineSrcClass {
  GstSrcClass parent_class;
};
</STRUCT>
<FUNCTION>
<NAME>gst_sinesrc_get_type</NAME>
<RETURNS>GtkType  </RETURNS>
void
</FUNCTION>
<MACRO>
<NAME>GST_TYPE_PIPEFILTER</NAME>
#define GST_TYPE_PIPEFILTER \
  (gst_pipefilter_get_type())
</MACRO>
<MACRO>
<NAME>GST_PIPEFILTER</NAME>
#define GST_PIPEFILTER(obj) \
  (GTK_CHECK_CAST((obj),GST_TYPE_PIPEFILTER,GstPipefilter))
</MACRO>
<MACRO>
<NAME>GST_PIPEFILTER_CLASS</NAME>
#define GST_PIPEFILTER_CLASS(klass) \
  (GTK_CHECK_CLASS_CAST((klass),GST_TYPE_PIPEFILTER,GstPipefilterClass))
</MACRO>
<MACRO>
<NAME>GST_IS_PIPEFILTER</NAME>
#define GST_IS_PIPEFILTER(obj) \
  (GTK_CHECK_TYPE((obj),GST_TYPE_PIPEFILTER))
</MACRO>
<MACRO>
<NAME>GST_IS_PIPEFILTER_CLASS</NAME>
#define GST_IS_PIPEFILTER_CLASS(obj) \
  (GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_PIPEFILTER))
</MACRO>
<ENUM>
<NAME>GstPipeFilterFlags</NAME>
typedef enum {
  GST_PIPEFILTER_OPEN		= (1 << 16 ),
} GstPipeFilterFlags;
</ENUM>
<STRUCT>
<NAME>GstPipefilter</NAME>
</STRUCT>
<STRUCT>
<NAME>GstPipefilterClass</NAME>
</STRUCT>
<STRUCT>
<NAME>GstPipefilter</NAME>
struct GstPipefilter {
  GstFilter filter;

  GstPad *sinkpad;
  GstPad *srcpad;

  /* command */
  gchar **command;
  gchar *orig_command;
  /* fd */
  gint fdout[2];
  gint fdin[2];
  pid_t   childpid;

  gulong curoffset;                     /* current offset in file */
  gulong bytes_per_read;                /* bytes per read */

  gulong seq;                           /* buffer sequence number */
};
</STRUCT>
<STRUCT>
<NAME>GstPipefilterClass</NAME>
struct GstPipefilterClass {
  GstFilterClass parent_class;
};
</STRUCT>
<FUNCTION>
<NAME>gst_pipefilter_get_type</NAME>
<RETURNS>GtkType  </RETURNS>
void
</FUNCTION>
<STRUCT>
<NAME>MetaAudioRaw</NAME>
</STRUCT>
<STRUCT>
<NAME>MetaAudioRaw</NAME>
struct MetaAudioRaw {
  GstMeta meta;

  /* formatting information */
  gint format;
  gint channels;
  gint frequency;
  gint bps;
};
</STRUCT>
<STRUCT>
<NAME>MetaAudioSpectrum</NAME>
</STRUCT>
<STRUCT>
<NAME>MetaAudioSpectrum</NAME>
struct MetaAudioSpectrum {
  GstMeta meta;

  /* data representation */
  gint16 bands;			/* how many bands are represented */
  gint8 channels;		/* how many audio channels are there? */
  gboolean interleaved;		/* are the channels interleaved? */

  /* spectrum details */
  gint16 lowfreq;
  gint16 highfreq;
  gint16 steps;
};
</STRUCT>
<STRUCT>
<NAME>MetaVideoRaw</NAME>
</STRUCT>
<STRUCT>
<NAME>MetaDGA</NAME>
</STRUCT>
<STRUCT>
<NAME>MetaOverlay</NAME>
</STRUCT>
<STRUCT>
<NAME>OverlayClip</NAME>
</STRUCT>
<STRUCT>
<NAME>OverlayClip</NAME>
struct OverlayClip {
  int x1, x2, y1, y2;
};
</STRUCT>
<STRUCT>
<NAME>MetaDGA</NAME>
struct MetaDGA {
  // the base address of the screen
  void *base;
  // the dimensions of the screen
  int swidth, sheight;
  // the number of bytes in a line
  int bytes_per_line;
};
</STRUCT>
<STRUCT>
<NAME>MetaOverlay</NAME>
struct MetaOverlay {
  // the position of the window
  int wx, wy;
  // a reference to the object sending overlay change events
  GtkWidget *overlay_element;
  // the number of overlay regions
  int clip_count;
  // the overlay regions of the display window
  struct _OverlayClip overlay_clip[32];

  gint width;
  gint height;
	
  gboolean did_overlay;
  gboolean fully_obscured;
};
</STRUCT>
<STRUCT>
<NAME>MetaVideoRaw</NAME>
struct MetaVideoRaw {
  GstMeta meta;

  /* formatting information */
  GstColorSpaceType format;
  GdkVisual *visual;
  // dimensions of the video buffer
  gint width;
  gint height;
  // a pointer to the overlay info if the sink supports this
  MetaOverlay *overlay_info;
  // a pointer to the DGA info if the sink supports this
  MetaDGA *dga_info;
};
</STRUCT>