* @GST_QUERY_SEGMENT: segment start/stop positions
* @GST_QUERY_CONVERT: convert values between formats
* @GST_QUERY_FORMATS: query supported formats for convert
+ * @GST_QUERY_BUFFERING: query available media for efficient seeking. Since
+ * 0.10.20.
+ * @GST_QUERY_CUSTOM: a custom application or element defined query. Since
+ * 0.10.22.
+ * @GST_QUERY_URI: query the URI of the source or sink. Since 0.10.22.
*
* Standard predefined Query types
*/
GST_QUERY_POSITION,
GST_QUERY_DURATION,
GST_QUERY_LATENCY,
- GST_QUERY_JITTER, /* not in draft-query, necessary? */
+ GST_QUERY_JITTER, /* not in draft-query, necessary? */
GST_QUERY_RATE,
GST_QUERY_SEEKING,
GST_QUERY_SEGMENT,
GST_QUERY_CONVERT,
- GST_QUERY_FORMATS
+ GST_QUERY_FORMATS,
+ GST_QUERY_BUFFERING,
+ GST_QUERY_CUSTOM,
+ GST_QUERY_URI
} GstQueryType;
/**
- * GST_QUERY_TYPE_RATE_DEN:
+ * GstBufferingMode:
+ * @GST_BUFFERING_STREAM: a small amount of data is buffered
+ * @GST_BUFFERING_DOWNLOAD: the stream is being downloaded
+ * @GST_BUFFERING_TIMESHIFT: the stream is being downloaded in a ringbuffer
+ * @GST_BUFFERING_LIVE: the stream is a live stream
*
- * Rates are relative to this value
+ * The different types of buffering methods.
*/
-#define GST_QUERY_TYPE_RATE_DEN G_GINT64_CONSTANT (1000000)
+typedef enum {
+ GST_BUFFERING_STREAM,
+ GST_BUFFERING_DOWNLOAD,
+ GST_BUFFERING_TIMESHIFT,
+ GST_BUFFERING_LIVE
+} GstBufferingMode;
typedef struct _GstQueryTypeDefinition GstQueryTypeDefinition;
typedef struct _GstQuery GstQuery;
struct _GstQueryTypeDefinition
{
GstQueryType value;
- gchar *nick;
- gchar *description;
+ const gchar *nick;
+ const gchar *description;
GQuark quark;
};
-#define GST_TYPE_QUERY (gst_query_get_type())
+#define GST_TYPE_QUERY (gst_query_get_type())
#define GST_IS_QUERY(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_QUERY))
#define GST_IS_QUERY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_QUERY))
#define GST_QUERY_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_QUERY, GstQueryClass))
#define GST_QUERY(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_QUERY, GstQuery))
+#define GST_QUERY_CAST(obj) ((GstQuery*)(obj)) /* only since 0.10.23 */
#define GST_QUERY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_QUERY, GstQueryClass))
+
/**
* GST_QUERY_TYPE:
* @query: the query to query
GstStructure *structure;
- /*< private > */
+ /*< private >*/
gpointer _gst_reserved;
};
struct _GstQueryClass {
GstMiniObjectClass mini_object_class;
- /*< private > */
+ /*< private >*/
gpointer _gst_reserved[GST_PADDING];
};
-void _gst_query_initialize (void);
-
const gchar* gst_query_type_get_name (GstQueryType query);
GQuark gst_query_type_to_quark (GstQueryType query);
-GType gst_query_get_type (void);
+GType gst_query_get_type (void);
/* register a new query */
GstQueryType gst_query_type_register (const gchar *nick,
* @q: a #GstQuery to increase the refcount of.
*
* Increases the refcount of the given query by one.
+ *
+ * Returns: @q
*/
-#define gst_query_ref(q) GST_QUERY (gst_mini_object_ref (GST_MINI_OBJECT (q)))
+#ifdef _FOOL_GTK_DOC_
+G_INLINE_FUNC GstQuery * gst_query_ref (GstQuery * q);
+#endif
+
+static inline GstQuery *
+gst_query_ref (GstQuery * q)
+{
+ return GST_QUERY_CAST (gst_mini_object_ref (GST_MINI_OBJECT_CAST (q)));
+}
+
/**
* gst_query_unref:
* @q: a #GstQuery to decrease the refcount of.
* Decreases the refcount of the query. If the refcount reaches 0, the query
* will be freed.
*/
-#define gst_query_unref(q) gst_mini_object_unref (GST_MINI_OBJECT (q))
+#ifdef _FOOL_GTK_DOC_
+G_INLINE_FUNC void gst_query_unref (GstQuery * q);
+#endif
+
+static inline void
+gst_query_unref (GstQuery * q)
+{
+ gst_mini_object_unref (GST_MINI_OBJECT_CAST (q));
+}
/* copy query */
/**
* gst_query_copy:
* @q: a #GstQuery to copy.
*
- * Copies the given query using the copy function of the parent #GstData
- * structure.
+ * Copies the given query using the copy function of the parent #GstStructure.
+ *
+ * Returns: a new copy of @q.
*/
-#define gst_query_copy(q) GST_QUERY (gst_mini_object_copy (GST_MINI_OBJECT (q)))
+#ifdef _FOOL_GTK_DOC_
+G_INLINE_FUNC GstQuery * gst_query_copy (const GstQuery * q);
+#endif
+
+static inline GstQuery *
+gst_query_copy (const GstQuery * q)
+{
+ return GST_QUERY_CAST (gst_mini_object_copy (GST_MINI_OBJECT_CAST (q)));
+}
+
/**
* gst_query_make_writable:
* @q: a #GstQuery to make writable
*
* Makes a writable query from the given query.
*/
-#define gst_query_make_writable(q) GST_QUERY (gst_mini_object_make_writable (GST_MINI_OBJECT (q)))
+#define gst_query_make_writable(q) GST_QUERY_CAST (gst_mini_object_make_writable (GST_MINI_OBJECT_CAST (q)))
/* position query */
-GstQuery* gst_query_new_position (GstFormat format);
-void gst_query_set_position (GstQuery *query, GstFormat format, gint64 cur);
-void gst_query_parse_position (GstQuery *query, GstFormat *format, gint64 *cur);
+GstQuery* gst_query_new_position (GstFormat format);
+void gst_query_set_position (GstQuery *query, GstFormat format, gint64 cur);
+void gst_query_parse_position (GstQuery *query, GstFormat *format, gint64 *cur);
/* duration query */
-GstQuery* gst_query_new_duration (GstFormat format);
-void gst_query_set_duration (GstQuery *query, GstFormat format, gint64 duration);
-void gst_query_parse_duration (GstQuery *query, GstFormat *format, gint64 *duration);
+GstQuery* gst_query_new_duration (GstFormat format);
+void gst_query_set_duration (GstQuery *query, GstFormat format, gint64 duration);
+void gst_query_parse_duration (GstQuery *query, GstFormat *format, gint64 *duration);
+
+/* latency query */
+GstQuery* gst_query_new_latency (void);
+void gst_query_set_latency (GstQuery *query, gboolean live, GstClockTime min_latency,
+ GstClockTime max_latency);
+void gst_query_parse_latency (GstQuery *query, gboolean *live, GstClockTime *min_latency,
+ GstClockTime *max_latency);
/* convert query */
-GstQuery* gst_query_new_convert (GstFormat src_format, gint64 value, GstFormat dest_format);
-void gst_query_set_convert (GstQuery *query, GstFormat src_format, gint64 src_value,
- GstFormat dest_format, gint64 dest_value);
-void gst_query_parse_convert (GstQuery *query, GstFormat *src_format, gint64 *src_value,
- GstFormat *dest_format, gint64 *dest_value);
+GstQuery* gst_query_new_convert (GstFormat src_format, gint64 value, GstFormat dest_format);
+void gst_query_set_convert (GstQuery *query, GstFormat src_format, gint64 src_value,
+ GstFormat dest_format, gint64 dest_value);
+void gst_query_parse_convert (GstQuery *query, GstFormat *src_format, gint64 *src_value,
+ GstFormat *dest_format, gint64 *dest_value);
/* segment query */
GstQuery* gst_query_new_segment (GstFormat format);
void gst_query_set_segment (GstQuery *query, gdouble rate, GstFormat format,
void gst_query_parse_segment (GstQuery *query, gdouble *rate, GstFormat *format,
gint64 *start_value, gint64 *stop_value);
-
/* application specific query */
-GstQuery * gst_query_new_application (GstQueryType type,
+GstQuery * gst_query_new_application (GstQueryType type,
GstStructure *structure);
+GstStructure * gst_query_get_structure (GstQuery *query);
-
-GstStructure * gst_query_get_structure (GstQuery *query);
-
-/* moved from old gstqueryutils.h */
+/* seeking query */
GstQuery* gst_query_new_seeking (GstFormat format);
void gst_query_set_seeking (GstQuery *query, GstFormat format,
gboolean seekable,
gboolean *seekable,
gint64 *segment_start,
gint64 *segment_end);
-
+/* formats query */
GstQuery* gst_query_new_formats (void);
void gst_query_set_formats (GstQuery *query, gint n_formats, ...);
void gst_query_set_formatsv (GstQuery *query, gint n_formats, GstFormat *formats);
void gst_query_parse_formats_length (GstQuery *query, guint *n_formats);
void gst_query_parse_formats_nth (GstQuery *query, guint nth, GstFormat *format);
+/* buffering query */
+GstQuery* gst_query_new_buffering (GstFormat format);
+void gst_query_set_buffering_percent (GstQuery *query, gboolean busy, gint percent);
+void gst_query_parse_buffering_percent (GstQuery *query, gboolean *busy, gint *percent);
+
+void gst_query_set_buffering_stats (GstQuery *query, GstBufferingMode mode,
+ gint avg_in, gint avg_out,
+ gint64 buffering_left);
+void gst_query_parse_buffering_stats (GstQuery *query, GstBufferingMode *mode,
+ gint *avg_in, gint *avg_out,
+ gint64 *buffering_left);
+
+void gst_query_set_buffering_range (GstQuery *query, GstFormat format,
+ gint64 start, gint64 stop,
+ gint64 estimated_total);
+void gst_query_parse_buffering_range (GstQuery *query, GstFormat *format,
+ gint64 *start, gint64 *stop,
+ gint64 *estimated_total);
+/* URI query */
+GstQuery * gst_query_new_uri (void);
+void gst_query_parse_uri (GstQuery *query, gchar **uri);
+void gst_query_set_uri (GstQuery *query, const gchar *uri);
+
G_END_DECLS
#endif /* __GST_QUERY_H__ */
projects / platform / upstream / gstreamer.git / blobdiff