diff options
Diffstat (limited to 'gst/gstutils.h')
| -rw-r--r-- | gst/gstutils.h | 317 |
1 files changed, 150 insertions, 167 deletions
diff --git a/gst/gstutils.h b/gst/gstutils.h index 8f1445a..e562457 100644 --- a/gst/gstutils.h +++ b/gst/gstutils.h @@ -31,9 +31,9 @@ G_BEGIN_DECLS -void gst_util_set_value_from_string (GValue *value, const gchar *value_str); -void gst_util_set_object_arg (GObject *object, const gchar *name, const gchar *value); -void gst_util_dump_mem (const guchar *mem, guint size); +void gst_util_set_value_from_string (GValue *value, const gchar *value_str); +void gst_util_set_object_arg (GObject *object, const gchar *name, const gchar *value); +void gst_util_dump_mem (const guchar *mem, guint size); guint64 gst_util_gdouble_to_guint64 (gdouble value) G_GNUC_CONST; gdouble gst_util_guint64_to_gdouble (guint64 value) G_GNUC_CONST; @@ -63,9 +63,9 @@ gdouble gst_util_guint64_to_gdouble (guint64 value) G_GNUC_CONST; #define gst_guint64_to_gdouble(value) ((gdouble) (value)) #endif -guint64 gst_util_uint64_scale (guint64 val, guint64 num, guint64 denom); -guint64 gst_util_uint64_scale_round (guint64 val, guint64 num, guint64 denom); -guint64 gst_util_uint64_scale_ceil (guint64 val, guint64 num, guint64 denom); +guint64 gst_util_uint64_scale (guint64 val, guint64 num, guint64 denom); +guint64 gst_util_uint64_scale_round (guint64 val, guint64 num, guint64 denom); +guint64 gst_util_uint64_scale_ceil (guint64 val, guint64 num, guint64 denom); guint64 gst_util_uint64_scale_int (guint64 val, gint num, gint denom); guint64 gst_util_uint64_scale_int_round (guint64 val, gint num, gint denom); @@ -74,24 +74,10 @@ guint64 gst_util_uint64_scale_int_ceil (guint64 val, gint num, gint den guint32 gst_util_seqnum_next (void); gint32 gst_util_seqnum_compare (guint32 s1, guint32 s2); -void gst_print_pad_caps (GString *buf, gint indent, GstPad *pad); -void gst_print_element_args (GString *buf, gint indent, GstElement *element); +void gst_print_pad_caps (GString *buf, gint indent, GstPad *pad); +void gst_print_element_args (GString *buf, gint indent, GstElement *element); -GType gst_type_register_static_full (GType parent_type, - const gchar *type_name, - guint class_size, - GBaseInitFunc base_init, - GBaseFinalizeFunc base_finalize, - GClassInitFunc class_init, - GClassFinalizeFunc class_finalize, - gconstpointer class_data, - guint instance_size, - guint16 n_preallocs, - GInstanceInitFunc instance_init, - const GTypeValueTable *value_table, - GTypeFlags flags); - /** * GST_CALL_PARENT: * @parent_class_cast: the name of the class cast macro for the parent type @@ -103,9 +89,9 @@ GType gst_type_register_static_full (GType parent_type, * this macro is not to be used with things that return something, use * the _WITH_DEFAULT version for that */ -#define GST_CALL_PARENT(parent_class_cast, name, args) \ - ((parent_class_cast(parent_class)->name != NULL) ? \ - parent_class_cast(parent_class)->name args : (void) 0) +#define GST_CALL_PARENT(parent_class_cast, name, args) \ + ((parent_class_cast(parent_class)->name != NULL) ? \ + parent_class_cast(parent_class)->name args : (void) 0) /** * GST_CALL_PARENT_WITH_DEFAULT: @@ -118,8 +104,8 @@ GType gst_type_register_static_full (GType parent_type, * evaluates to @def_return. */ #define GST_CALL_PARENT_WITH_DEFAULT(parent_class_cast, name, args, def_return)\ - ((parent_class_cast(parent_class)->name != NULL) ? \ - parent_class_cast(parent_class)->name args : def_return) + ((parent_class_cast(parent_class)->name != NULL) ? \ + parent_class_cast(parent_class)->name args : def_return) /* Define PUT and GET functions for unaligned memory */ #define _GST_GET(__data, __idx, __size, __shift) \ @@ -134,14 +120,14 @@ GType gst_type_register_static_full (GType parent_type, * * Read a 64 bit unsigned integer value in big endian format from the memory buffer. */ -#define GST_READ_UINT64_BE(data) (_GST_GET (data, 0, 64, 56) | \ - _GST_GET (data, 1, 64, 48) | \ - _GST_GET (data, 2, 64, 40) | \ - _GST_GET (data, 3, 64, 32) | \ - _GST_GET (data, 4, 64, 24) | \ - _GST_GET (data, 5, 64, 16) | \ - _GST_GET (data, 6, 64, 8) | \ - _GST_GET (data, 7, 64, 0)) +#define GST_READ_UINT64_BE(data) (_GST_GET (data, 0, 64, 56) | \ + _GST_GET (data, 1, 64, 48) | \ + _GST_GET (data, 2, 64, 40) | \ + _GST_GET (data, 3, 64, 32) | \ + _GST_GET (data, 4, 64, 24) | \ + _GST_GET (data, 5, 64, 16) | \ + _GST_GET (data, 6, 64, 8) | \ + _GST_GET (data, 7, 64, 0)) /** * GST_READ_UINT64_LE: @@ -149,14 +135,14 @@ GType gst_type_register_static_full (GType parent_type, * * Read a 64 bit unsigned integer value in little endian format from the memory buffer. */ -#define GST_READ_UINT64_LE(data) (_GST_GET (data, 7, 64, 56) | \ - _GST_GET (data, 6, 64, 48) | \ - _GST_GET (data, 5, 64, 40) | \ - _GST_GET (data, 4, 64, 32) | \ - _GST_GET (data, 3, 64, 24) | \ - _GST_GET (data, 2, 64, 16) | \ - _GST_GET (data, 1, 64, 8) | \ - _GST_GET (data, 0, 64, 0)) +#define GST_READ_UINT64_LE(data) (_GST_GET (data, 7, 64, 56) | \ + _GST_GET (data, 6, 64, 48) | \ + _GST_GET (data, 5, 64, 40) | \ + _GST_GET (data, 4, 64, 32) | \ + _GST_GET (data, 3, 64, 24) | \ + _GST_GET (data, 2, 64, 16) | \ + _GST_GET (data, 1, 64, 8) | \ + _GST_GET (data, 0, 64, 0)) /** * GST_READ_UINT32_BE: @@ -164,10 +150,10 @@ GType gst_type_register_static_full (GType parent_type, * * Read a 32 bit unsigned integer value in big endian format from the memory buffer. */ -#define GST_READ_UINT32_BE(data) (_GST_GET (data, 0, 32, 24) | \ - _GST_GET (data, 1, 32, 16) | \ - _GST_GET (data, 2, 32, 8) | \ - _GST_GET (data, 3, 32, 0)) +#define GST_READ_UINT32_BE(data) (_GST_GET (data, 0, 32, 24) | \ + _GST_GET (data, 1, 32, 16) | \ + _GST_GET (data, 2, 32, 8) | \ + _GST_GET (data, 3, 32, 0)) /** * GST_READ_UINT32_LE: @@ -175,10 +161,10 @@ GType gst_type_register_static_full (GType parent_type, * * Read a 32 bit unsigned integer value in little endian format from the memory buffer. */ -#define GST_READ_UINT32_LE(data) (_GST_GET (data, 3, 32, 24) | \ - _GST_GET (data, 2, 32, 16) | \ - _GST_GET (data, 1, 32, 8) | \ - _GST_GET (data, 0, 32, 0)) +#define GST_READ_UINT32_LE(data) (_GST_GET (data, 3, 32, 24) | \ + _GST_GET (data, 2, 32, 16) | \ + _GST_GET (data, 1, 32, 8) | \ + _GST_GET (data, 0, 32, 0)) /** * GST_READ_UINT24_BE: @@ -188,9 +174,9 @@ GType gst_type_register_static_full (GType parent_type, * * Since: 0.10.22 */ -#define GST_READ_UINT24_BE(data) (_GST_GET (data, 0, 32, 16) | \ - _GST_GET (data, 1, 32, 8) | \ - _GST_GET (data, 2, 32, 0)) +#define GST_READ_UINT24_BE(data) (_GST_GET (data, 0, 32, 16) | \ + _GST_GET (data, 1, 32, 8) | \ + _GST_GET (data, 2, 32, 0)) /** * GST_READ_UINT24_LE: @@ -200,9 +186,9 @@ GType gst_type_register_static_full (GType parent_type, * * Since: 0.10.22 */ -#define GST_READ_UINT24_LE(data) (_GST_GET (data, 2, 32, 16) | \ - _GST_GET (data, 1, 32, 8) | \ - _GST_GET (data, 0, 32, 0)) +#define GST_READ_UINT24_LE(data) (_GST_GET (data, 2, 32, 16) | \ + _GST_GET (data, 1, 32, 8) | \ + _GST_GET (data, 0, 32, 0)) /** * GST_READ_UINT16_BE: @@ -210,8 +196,8 @@ GType gst_type_register_static_full (GType parent_type, * * Read a 16 bit unsigned integer value in big endian format from the memory buffer. */ -#define GST_READ_UINT16_BE(data) (_GST_GET (data, 0, 16, 8) | \ - _GST_GET (data, 1, 16, 0)) +#define GST_READ_UINT16_BE(data) (_GST_GET (data, 0, 16, 8) | \ + _GST_GET (data, 1, 16, 0)) /** * GST_READ_UINT16_LE: @@ -219,8 +205,8 @@ GType gst_type_register_static_full (GType parent_type, * * Read a 16 bit unsigned integer value in little endian format from the memory buffer. */ -#define GST_READ_UINT16_LE(data) (_GST_GET (data, 1, 16, 8) | \ - _GST_GET (data, 0, 16, 0)) +#define GST_READ_UINT16_LE(data) (_GST_GET (data, 1, 16, 8) | \ + _GST_GET (data, 0, 16, 0)) /** * GST_READ_UINT8: @@ -228,7 +214,7 @@ GType gst_type_register_static_full (GType parent_type, * * Read an 8 bit unsigned integer value from the memory buffer. */ -#define GST_READ_UINT8(data) (_GST_GET (data, 0, 8, 0)) +#define GST_READ_UINT8(data) (_GST_GET (data, 0, 8, 0)) /** * GST_WRITE_UINT64_BE: @@ -237,16 +223,16 @@ GType gst_type_register_static_full (GType parent_type, * * Store a 64 bit unsigned integer value in big endian format into the memory buffer. */ -#define GST_WRITE_UINT64_BE(data, num) do { \ - _GST_PUT (data, 0, 64, 56, num); \ - _GST_PUT (data, 1, 64, 48, num); \ - _GST_PUT (data, 2, 64, 40, num); \ - _GST_PUT (data, 3, 64, 32, num); \ - _GST_PUT (data, 4, 64, 24, num); \ - _GST_PUT (data, 5, 64, 16, num); \ - _GST_PUT (data, 6, 64, 8, num); \ - _GST_PUT (data, 7, 64, 0, num); \ - } while (0) +#define GST_WRITE_UINT64_BE(data, num) do { \ + _GST_PUT (data, 0, 64, 56, num); \ + _GST_PUT (data, 1, 64, 48, num); \ + _GST_PUT (data, 2, 64, 40, num); \ + _GST_PUT (data, 3, 64, 32, num); \ + _GST_PUT (data, 4, 64, 24, num); \ + _GST_PUT (data, 5, 64, 16, num); \ + _GST_PUT (data, 6, 64, 8, num); \ + _GST_PUT (data, 7, 64, 0, num); \ + } while (0) /** * GST_WRITE_UINT64_LE: @@ -255,16 +241,16 @@ GType gst_type_register_static_full (GType parent_type, * * Store a 64 bit unsigned integer value in little endian format into the memory buffer. */ -#define GST_WRITE_UINT64_LE(data, num) do { \ - _GST_PUT (data, 0, 64, 0, num); \ - _GST_PUT (data, 1, 64, 8, num); \ - _GST_PUT (data, 2, 64, 16, num); \ - _GST_PUT (data, 3, 64, 24, num); \ - _GST_PUT (data, 4, 64, 32, num); \ - _GST_PUT (data, 5, 64, 40, num); \ - _GST_PUT (data, 6, 64, 48, num); \ - _GST_PUT (data, 7, 64, 56, num); \ - } while (0) +#define GST_WRITE_UINT64_LE(data, num) do { \ + _GST_PUT (data, 0, 64, 0, num); \ + _GST_PUT (data, 1, 64, 8, num); \ + _GST_PUT (data, 2, 64, 16, num); \ + _GST_PUT (data, 3, 64, 24, num); \ + _GST_PUT (data, 4, 64, 32, num); \ + _GST_PUT (data, 5, 64, 40, num); \ + _GST_PUT (data, 6, 64, 48, num); \ + _GST_PUT (data, 7, 64, 56, num); \ + } while (0) /** * GST_WRITE_UINT32_BE: @@ -273,12 +259,12 @@ GType gst_type_register_static_full (GType parent_type, * * Store a 32 bit unsigned integer value in big endian format into the memory buffer. */ -#define GST_WRITE_UINT32_BE(data, num) do { \ - _GST_PUT (data, 0, 32, 24, num); \ - _GST_PUT (data, 1, 32, 16, num); \ - _GST_PUT (data, 2, 32, 8, num); \ - _GST_PUT (data, 3, 32, 0, num); \ - } while (0) +#define GST_WRITE_UINT32_BE(data, num) do { \ + _GST_PUT (data, 0, 32, 24, num); \ + _GST_PUT (data, 1, 32, 16, num); \ + _GST_PUT (data, 2, 32, 8, num); \ + _GST_PUT (data, 3, 32, 0, num); \ + } while (0) /** * GST_WRITE_UINT32_LE: @@ -287,12 +273,12 @@ GType gst_type_register_static_full (GType parent_type, * * Store a 32 bit unsigned integer value in little endian format into the memory buffer. */ -#define GST_WRITE_UINT32_LE(data, num) do { \ - _GST_PUT (data, 0, 32, 0, num); \ - _GST_PUT (data, 1, 32, 8, num); \ - _GST_PUT (data, 2, 32, 16, num); \ - _GST_PUT (data, 3, 32, 24, num); \ - } while (0) +#define GST_WRITE_UINT32_LE(data, num) do { \ + _GST_PUT (data, 0, 32, 0, num); \ + _GST_PUT (data, 1, 32, 8, num); \ + _GST_PUT (data, 2, 32, 16, num); \ + _GST_PUT (data, 3, 32, 24, num); \ + } while (0) /** * GST_WRITE_UINT24_BE: @@ -303,11 +289,11 @@ GType gst_type_register_static_full (GType parent_type, * * Since: 0.10.22 */ -#define GST_WRITE_UINT24_BE(data, num) do { \ - _GST_PUT (data, 0, 32, 16, num); \ - _GST_PUT (data, 1, 32, 8, num); \ - _GST_PUT (data, 2, 32, 0, num); \ - } while (0) +#define GST_WRITE_UINT24_BE(data, num) do { \ + _GST_PUT (data, 0, 32, 16, num); \ + _GST_PUT (data, 1, 32, 8, num); \ + _GST_PUT (data, 2, 32, 0, num); \ + } while (0) /** * GST_WRITE_UINT24_LE: @@ -318,11 +304,11 @@ GType gst_type_register_static_full (GType parent_type, * * Since: 0.10.22 */ -#define GST_WRITE_UINT24_LE(data, num) do { \ - _GST_PUT (data, 0, 32, 0, num); \ - _GST_PUT (data, 1, 32, 8, num); \ - _GST_PUT (data, 2, 32, 16, num); \ - } while (0) +#define GST_WRITE_UINT24_LE(data, num) do { \ + _GST_PUT (data, 0, 32, 0, num); \ + _GST_PUT (data, 1, 32, 8, num); \ + _GST_PUT (data, 2, 32, 16, num); \ + } while (0) /** * GST_WRITE_UINT16_BE: @@ -331,10 +317,10 @@ GType gst_type_register_static_full (GType parent_type, * * Store a 16 bit unsigned integer value in big endian format into the memory buffer. */ -#define GST_WRITE_UINT16_BE(data, num) do { \ - _GST_PUT (data, 0, 16, 8, num); \ - _GST_PUT (data, 1, 16, 0, num); \ - } while (0) +#define GST_WRITE_UINT16_BE(data, num) do { \ + _GST_PUT (data, 0, 16, 8, num); \ + _GST_PUT (data, 1, 16, 0, num); \ + } while (0) /** * GST_WRITE_UINT16_LE: @@ -343,10 +329,10 @@ GType gst_type_register_static_full (GType parent_type, * * Store a 16 bit unsigned integer value in little endian format into the memory buffer. */ -#define GST_WRITE_UINT16_LE(data, num) do { \ - _GST_PUT (data, 0, 16, 0, num); \ - _GST_PUT (data, 1, 16, 8, num); \ - } while (0) +#define GST_WRITE_UINT16_LE(data, num) do { \ + _GST_PUT (data, 0, 16, 0, num); \ + _GST_PUT (data, 1, 16, 8, num); \ + } while (0) /** * GST_WRITE_UINT8: @@ -355,9 +341,9 @@ GType gst_type_register_static_full (GType parent_type, * * Store an 8 bit unsigned integer value into the memory buffer. */ -#define GST_WRITE_UINT8(data, num) do { \ - _GST_PUT (data, 0, 8, 0, num); \ - } while (0) +#define GST_WRITE_UINT8(data, num) do { \ + _GST_PUT (data, 0, 8, 0, num); \ + } while (0) /* Float endianness conversion macros */ @@ -846,39 +832,39 @@ GST_WRITE_DOUBLE_BE(guint8 *data, gdouble num) */ #define GST_ROUND_DOWN_64(num) ((num)&(~63)) -void gst_object_default_error (GstObject * source, - const GError * error, - const gchar * debug); +void gst_object_default_error (GstObject * source, + const GError * error, + const gchar * debug); /* element functions */ void gst_element_create_all_pads (GstElement *element); GstPad* gst_element_get_compatible_pad (GstElement *element, GstPad *pad, - const GstCaps *caps); + GstCaps *caps); GstPadTemplate* gst_element_get_compatible_pad_template (GstElement *element, GstPadTemplate *compattempl); const gchar* gst_element_state_get_name (GstState state); const gchar * gst_element_state_change_return_get_name (GstStateChangeReturn state_ret); -gboolean gst_element_link (GstElement *src, GstElement *dest); -gboolean gst_element_link_many (GstElement *element_1, - GstElement *element_2, ...) G_GNUC_NULL_TERMINATED; -gboolean gst_element_link_filtered (GstElement * src, +gboolean gst_element_link (GstElement *src, GstElement *dest); +gboolean gst_element_link_many (GstElement *element_1, + GstElement *element_2, ...) G_GNUC_NULL_TERMINATED; +gboolean gst_element_link_filtered (GstElement * src, GstElement * dest, GstCaps *filter); void gst_element_unlink (GstElement *src, GstElement *dest); void gst_element_unlink_many (GstElement *element_1, - GstElement *element_2, ...) G_GNUC_NULL_TERMINATED; + GstElement *element_2, ...) G_GNUC_NULL_TERMINATED; -gboolean gst_element_link_pads (GstElement *src, const gchar *srcpadname, - GstElement *dest, const gchar *destpadname); -gboolean gst_element_link_pads_full (GstElement *src, const gchar *srcpadname, - GstElement *dest, const gchar *destpadname, - GstPadLinkCheck flags); +gboolean gst_element_link_pads (GstElement *src, const gchar *srcpadname, + GstElement *dest, const gchar *destpadname); +gboolean gst_element_link_pads_full (GstElement *src, const gchar *srcpadname, + GstElement *dest, const gchar *destpadname, + GstPadLinkCheck flags); void gst_element_unlink_pads (GstElement *src, const gchar *srcpadname, - GstElement *dest, const gchar *destpadname); + GstElement *dest, const gchar *destpadname); -gboolean gst_element_link_pads_filtered (GstElement * src, const gchar * srcpadname, +gboolean gst_element_link_pads_filtered (GstElement * src, const gchar * srcpadname, GstElement * dest, const gchar * destpadname, GstCaps *filter); @@ -897,45 +883,36 @@ gboolean gst_element_factory_can_src_any_caps (GstElementFactory *factory, cons gboolean gst_element_query_position (GstElement *element, GstFormat format, gint64 *cur); gboolean gst_element_query_duration (GstElement *element, GstFormat format, gint64 *duration); gboolean gst_element_query_convert (GstElement *element, GstFormat src_format, gint64 src_val, - GstFormat dest_format, gint64 *dest_val); - -/* element class functions */ -void gst_element_class_install_std_props (GstElementClass * klass, - const gchar * first_name, ...) G_GNUC_NULL_TERMINATED; + GstFormat dest_format, gint64 *dest_val); /* pad functions */ -void gst_pad_use_fixed_caps (GstPad *pad); -GstCaps* gst_pad_proxy_getcaps (GstPad * pad, GstCaps * filter); - -GstElement* gst_pad_get_parent_element (GstPad *pad); +void gst_pad_use_fixed_caps (GstPad *pad); +GstElement* gst_pad_get_parent_element (GstPad *pad); /* util query functions */ +gboolean gst_pad_proxy_query_accept_caps (GstPad *pad, GstQuery *query); +gboolean gst_pad_proxy_query_caps (GstPad *pad, GstQuery *query); + gboolean gst_pad_query_position (GstPad *pad, GstFormat format, gint64 *cur); gboolean gst_pad_query_duration (GstPad *pad, GstFormat format, gint64 *duration); gboolean gst_pad_query_convert (GstPad *pad, GstFormat src_format, gint64 src_val, - GstFormat dest_format, gint64 *dest_val); + GstFormat dest_format, gint64 *dest_val); +GstCaps * gst_pad_query_caps (GstPad *pad, GstCaps *filter); +gboolean gst_pad_query_accept_caps (GstPad *pad, GstCaps *caps); + -gboolean gst_pad_query_peer_position (GstPad *pad, GstFormat format, gint64 *cur); -gboolean gst_pad_query_peer_duration (GstPad *pad, GstFormat format, gint64 *duration); -gboolean gst_pad_query_peer_convert (GstPad *pad, GstFormat src_format, gint64 src_val, - GstFormat dest_format, gint64 *dest_val); +gboolean gst_pad_peer_query_position (GstPad *pad, GstFormat format, gint64 *cur); +gboolean gst_pad_peer_query_duration (GstPad *pad, GstFormat format, gint64 *duration); +gboolean gst_pad_peer_query_convert (GstPad *pad, GstFormat src_format, gint64 src_val, + GstFormat dest_format, gint64 *dest_val); +GstCaps * gst_pad_peer_query_caps (GstPad * pad, GstCaps *filter); +gboolean gst_pad_peer_query_accept_caps (GstPad * pad, GstCaps *caps); /* bin functions */ void gst_bin_add_many (GstBin *bin, GstElement *element_1, ...) G_GNUC_NULL_TERMINATED; void gst_bin_remove_many (GstBin *bin, GstElement *element_1, ...) G_GNUC_NULL_TERMINATED; GstPad * gst_bin_find_unlinked_pad (GstBin *bin, GstPadDirection direction); -/* buffer functions */ -GstBuffer * gst_buffer_merge (GstBuffer * buf1, GstBuffer * buf2); -GstBuffer * gst_buffer_join (GstBuffer * buf1, GstBuffer * buf2); - -/* tag emission utility functions */ -void gst_element_found_tags_for_pad (GstElement * element, - GstPad * pad, - GstTagList * list); -void gst_element_found_tags (GstElement * element, - GstTagList * list); - /* parse utility functions */ GstElement * gst_parse_bin_from_description (const gchar * bin_description, gboolean ghost_unlinked_pads, @@ -965,17 +942,23 @@ typedef enum { GST_SEARCH_MODE_AFTER } GstSearchMode; -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); - -gint gst_util_greatest_common_divisor (gint a, gint b); -void gst_util_fraction_to_double (gint src_n, gint src_d, gdouble *dest); -void gst_util_double_to_fraction (gdouble src, gint *dest_n, gint *dest_d); -gboolean gst_util_fraction_multiply (gint a_n, gint a_d, gint b_n, gint b_d, gint *res_n, gint *res_d); -gboolean gst_util_fraction_add (gint a_n, gint a_d, gint b_n, gint b_d, gint *res_n, gint *res_d); -gint gst_util_fraction_compare (gint a_n, gint a_d, gint b_n, gint b_d); +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 */ +gint gst_util_greatest_common_divisor (gint a, gint b); +gint64 gst_util_greatest_common_divisor_int64 (gint64 a, gint64 b); + +void gst_util_fraction_to_double (gint src_n, gint src_d, gdouble *dest); +void gst_util_double_to_fraction (gdouble src, gint *dest_n, gint *dest_d); + +gboolean gst_util_fraction_multiply (gint a_n, gint a_d, gint b_n, gint b_d, + gint *res_n, gint *res_d); +gboolean gst_util_fraction_add (gint a_n, gint a_d, gint b_n, gint b_d, + gint *res_n, gint *res_d); +gint gst_util_fraction_compare (gint a_n, gint a_d, gint b_n, gint b_d); G_END_DECLS |