diff options
Diffstat (limited to 'gst/gstutils.h')
| -rw-r--r-- | gst/gstutils.h | 123 |
1 files changed, 116 insertions, 7 deletions
diff --git a/gst/gstutils.h b/gst/gstutils.h index b56ad093c..ae72c4a54 100644 --- a/gst/gstutils.h +++ b/gst/gstutils.h @@ -32,15 +32,25 @@ G_BEGIN_DECLS +GST_EXPORT void gst_util_set_value_from_string (GValue *value, const gchar *value_str); + +GST_EXPORT void gst_util_set_object_arg (GObject *object, const gchar *name, const gchar *value); + +GST_EXPORT gboolean gst_util_set_object_array (GObject * object, const gchar * name, const GValueArray * array); +GST_EXPORT gboolean gst_util_get_object_array (GObject * object, const gchar * name, GValueArray ** array); +GST_EXPORT void gst_util_dump_mem (const guchar *mem, guint size); +GST_EXPORT guint64 gst_util_gdouble_to_guint64 (gdouble value) G_GNUC_CONST; + +GST_EXPORT gdouble gst_util_guint64_to_gdouble (guint64 value) G_GNUC_CONST; /** @@ -68,17 +78,31 @@ gdouble gst_util_guint64_to_gdouble (guint64 value) G_GNUC_CONST; #define gst_guint64_to_gdouble(value) ((gdouble) (value)) #endif +GST_EXPORT guint64 gst_util_uint64_scale (guint64 val, guint64 num, guint64 denom); + +GST_EXPORT guint64 gst_util_uint64_scale_round (guint64 val, guint64 num, guint64 denom); + +GST_EXPORT guint64 gst_util_uint64_scale_ceil (guint64 val, guint64 num, guint64 denom); +GST_EXPORT guint64 gst_util_uint64_scale_int (guint64 val, gint num, gint denom); + +GST_EXPORT guint64 gst_util_uint64_scale_int_round (guint64 val, gint num, gint denom); + +GST_EXPORT guint64 gst_util_uint64_scale_int_ceil (guint64 val, gint num, gint denom); +GST_EXPORT guint32 gst_util_seqnum_next (void); + +GST_EXPORT gint32 gst_util_seqnum_compare (guint32 s1, guint32 s2); +GST_EXPORT guint gst_util_group_id_next (void); /** @@ -919,112 +943,185 @@ GST_WRITE_DOUBLE_BE(guint8 *data, gdouble num) #define GST_ROUND_DOWN_N(num,align) (((num) & ~((align) - 1))) +GST_EXPORT void gst_object_default_error (GstObject * source, const GError * error, const gchar * debug); /* element functions */ + +GST_EXPORT void gst_element_create_all_pads (GstElement *element); + +GST_EXPORT GstPad* gst_element_get_compatible_pad (GstElement *element, GstPad *pad, GstCaps *caps); - +GST_EXPORT GstPadTemplate* gst_element_get_compatible_pad_template (GstElement *element, GstPadTemplate *compattempl); +GST_EXPORT const gchar* gst_element_state_get_name (GstState state); + +GST_EXPORT const gchar * gst_element_state_change_return_get_name (GstStateChangeReturn state_ret); +GST_EXPORT gboolean gst_element_link (GstElement *src, GstElement *dest); + +GST_EXPORT gboolean gst_element_link_many (GstElement *element_1, GstElement *element_2, ...) G_GNUC_NULL_TERMINATED; +GST_EXPORT gboolean gst_element_link_filtered (GstElement * src, GstElement * dest, GstCaps *filter); +GST_EXPORT void gst_element_unlink (GstElement *src, GstElement *dest); + +GST_EXPORT void gst_element_unlink_many (GstElement *element_1, GstElement *element_2, ...) G_GNUC_NULL_TERMINATED; - +GST_EXPORT gboolean gst_element_link_pads (GstElement *src, const gchar *srcpadname, GstElement *dest, const gchar *destpadname); +GST_EXPORT gboolean gst_element_link_pads_full (GstElement *src, const gchar *srcpadname, GstElement *dest, const gchar *destpadname, GstPadLinkCheck flags); +GST_EXPORT void gst_element_unlink_pads (GstElement *src, const gchar *srcpadname, GstElement *dest, const gchar *destpadname); - +GST_EXPORT gboolean gst_element_link_pads_filtered (GstElement * src, const gchar * srcpadname, GstElement * dest, const gchar * destpadname, GstCaps *filter); - +GST_EXPORT gboolean gst_element_seek_simple (GstElement *element, GstFormat format, GstSeekFlags seek_flags, gint64 seek_pos); /* util elementfactory functions */ + +GST_EXPORT gboolean gst_element_factory_can_sink_all_caps (GstElementFactory *factory, const GstCaps *caps); + +GST_EXPORT gboolean gst_element_factory_can_src_all_caps (GstElementFactory *factory, const GstCaps *caps); + +GST_EXPORT gboolean gst_element_factory_can_sink_any_caps (GstElementFactory *factory, const GstCaps *caps); + +GST_EXPORT gboolean gst_element_factory_can_src_any_caps (GstElementFactory *factory, const GstCaps *caps); /* util query functions */ + +GST_EXPORT gboolean gst_element_query_position (GstElement *element, GstFormat format, gint64 *cur); + +GST_EXPORT gboolean gst_element_query_duration (GstElement *element, GstFormat format, gint64 *duration); + +GST_EXPORT gboolean gst_element_query_convert (GstElement *element, GstFormat src_format, gint64 src_val, GstFormat dest_format, gint64 *dest_val); /* pad functions */ + +GST_EXPORT void gst_pad_use_fixed_caps (GstPad *pad); + +GST_EXPORT GstElement* gst_pad_get_parent_element (GstPad *pad); /* util query functions */ + +GST_EXPORT gboolean gst_pad_proxy_query_accept_caps (GstPad *pad, GstQuery *query); + +GST_EXPORT gboolean gst_pad_proxy_query_caps (GstPad *pad, GstQuery *query); +GST_EXPORT gboolean gst_pad_query_position (GstPad *pad, GstFormat format, gint64 *cur); + +GST_EXPORT gboolean gst_pad_query_duration (GstPad *pad, GstFormat format, gint64 *duration); + +GST_EXPORT gboolean gst_pad_query_convert (GstPad *pad, GstFormat src_format, gint64 src_val, GstFormat dest_format, gint64 *dest_val); +GST_EXPORT GstCaps * gst_pad_query_caps (GstPad *pad, GstCaps *filter); + +GST_EXPORT gboolean gst_pad_query_accept_caps (GstPad *pad, GstCaps *caps); +GST_EXPORT gboolean gst_pad_link_maybe_ghosting (GstPad *src, GstPad *sink); +GST_EXPORT gboolean gst_pad_link_maybe_ghosting_full (GstPad *src, GstPad *sink, GstPadLinkCheck flags); - +GST_EXPORT gboolean gst_pad_peer_query_position (GstPad *pad, GstFormat format, gint64 *cur); + +GST_EXPORT gboolean gst_pad_peer_query_duration (GstPad *pad, GstFormat format, gint64 *duration); + +GST_EXPORT gboolean gst_pad_peer_query_convert (GstPad *pad, GstFormat src_format, gint64 src_val, GstFormat dest_format, gint64 *dest_val); +GST_EXPORT GstCaps * gst_pad_peer_query_caps (GstPad * pad, GstCaps *filter); + +GST_EXPORT gboolean gst_pad_peer_query_accept_caps (GstPad * pad, GstCaps *caps); +GST_EXPORT gchar * gst_pad_create_stream_id (GstPad * pad, GstElement * parent, const gchar *stream_id) G_GNUC_MALLOC; + +GST_EXPORT gchar * gst_pad_create_stream_id_printf (GstPad * pad, GstElement * parent, const gchar *stream_id, ...) G_GNUC_PRINTF (3, 4) G_GNUC_MALLOC; + +GST_EXPORT gchar * gst_pad_create_stream_id_printf_valist (GstPad * pad, GstElement * parent, const gchar *stream_id, va_list var_args) G_GNUC_PRINTF (3, 0) G_GNUC_MALLOC; +GST_EXPORT gchar * gst_pad_get_stream_id (GstPad * pad); + +GST_EXPORT GstStream * gst_pad_get_stream (GstPad * pad); /* bin functions */ + +GST_EXPORT void gst_bin_add_many (GstBin *bin, GstElement *element_1, ...) G_GNUC_NULL_TERMINATED; + +GST_EXPORT void gst_bin_remove_many (GstBin *bin, GstElement *element_1, ...) G_GNUC_NULL_TERMINATED; + +GST_EXPORT GstPad * gst_bin_find_unlinked_pad (GstBin *bin, GstPadDirection direction); +GST_EXPORT gboolean gst_bin_sync_children_states (GstBin *bin); /* parse utility functions */ + +GST_EXPORT GstElement * gst_parse_bin_from_description (const gchar * bin_description, gboolean ghost_unlinked_pads, GError ** err); - +GST_EXPORT GstElement * gst_parse_bin_from_description_full (const gchar * bin_description, gboolean ghost_unlinked_pads, GstParseContext * context, GstParseFlags flags, GError ** err); - +GST_EXPORT GstClockTime gst_util_get_timestamp (void); /** @@ -1041,24 +1138,36 @@ typedef enum { GST_SEARCH_MODE_AFTER } GstSearchMode; +GST_EXPORT gpointer gst_util_array_binary_search (gpointer array, guint num_elements, gsize element_size, GCompareDataFunc search_func, GstSearchMode mode, gconstpointer search_data, gpointer user_data); /* fraction operations */ + +GST_EXPORT gint gst_util_greatest_common_divisor (gint a, gint b); + +GST_EXPORT gint64 gst_util_greatest_common_divisor_int64 (gint64 a, gint64 b); +GST_EXPORT void gst_util_fraction_to_double (gint src_n, gint src_d, gdouble *dest); + +GST_EXPORT void gst_util_double_to_fraction (gdouble src, gint *dest_n, gint *dest_d); +GST_EXPORT gboolean gst_util_fraction_multiply (gint a_n, gint a_d, gint b_n, gint b_d, gint *res_n, gint *res_d); +GST_EXPORT gboolean gst_util_fraction_add (gint a_n, gint a_d, gint b_n, gint b_d, gint *res_n, gint *res_d); +GST_EXPORT gint gst_util_fraction_compare (gint a_n, gint a_d, gint b_n, gint b_d); +GST_EXPORT gboolean gst_calculate_linear_regression (const GstClockTime * xy, GstClockTime * temp, guint n, GstClockTime * m_num, GstClockTime * m_denom, |