diff -r 000000000000 -r 0e761a78d257 gstreamer_core/gst/gstutils.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gstreamer_core/gst/gstutils.h Thu Dec 17 08:53:32 2009 +0200 @@ -0,0 +1,920 @@ +/* GStreamer + * Copyright (C) 1999,2000 Erik Walthinsen + * 2000 Wim Taymans + * 2002 Thomas Vander Stichele + * + * gstutils.h: Header for various utility functions + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + + +#ifndef __GST_UTILS_H__ +#define __GST_UTILS_H__ + +#include +#include + +G_BEGIN_DECLS + +void gst_util_set_value_from_string (GValue *value, const gchar *value_str); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +void gst_util_set_object_arg (GObject *object, const gchar *name, const gchar *value); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +void gst_util_dump_mem (const guchar *mem, guint size); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + + +guint64 gst_util_gdouble_to_guint64 (gdouble value); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +gdouble gst_util_guint64_to_gdouble (guint64 value); + +/** + * gst_guint64_to_gdouble: + * @value: the #guint64 value to convert + * + * Convert @value to a gdouble. + * + * Returns: @value converted to a #gdouble. + */ + +/** + * gst_gdouble_to_guint64: + * @value: the #gdouble value to convert + * + * Convert @value to a guint64. + * + * Returns: @value converted to a #guint64. + */ +#ifdef WIN32 +#define gst_gdouble_to_guint64(value) gst_util_gdouble_to_guint64(value) +#define gst_guint64_to_gdouble(value) gst_util_guint64_to_gdouble(value) +#else +#define gst_gdouble_to_guint64(value) ((guint64) (value)) +#define gst_guint64_to_gdouble(value) ((gdouble) (value)) +#endif + +guint64 gst_util_uint64_scale (guint64 val, guint64 num, guint64 denom); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + + +guint64 gst_util_uint64_scale_int (guint64 val, gint num, gint denom); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + + +void gst_print_pad_caps (GString *buf, gint indent, GstPad *pad); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +void gst_print_element_args (GString *buf, gint indent, GstElement *element); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + + + +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); + + +/* Macros for defining classes. Ideas taken from Bonobo, which took theirs + from Nautilus and GOB. */ + +/** + * GST_BOILERPLATE_FULL: + * @type: the name of the type struct + * @type_as_function: the prefix for the functions + * @parent_type: the parent type struct name + * @parent_type_macro: the parent type macro + * @additional_initializations: function pointer in the form of + * void additional_initializations (GType type) that can be used for + * initializing interfaces and the like + * + * Define the boilerplate type stuff to reduce typos and code size. Defines + * the get_type method and the parent_class static variable. + * + * + * + * GST_BOILERPLATE_FULL (GstFdSink, gst_fdsink, GstElement, GST_TYPE_ELEMENT, _do_init); + * + * + */ +#define GST_BOILERPLATE_FULL(type, type_as_function, parent_type, parent_type_macro, additional_initializations) \ + \ +static void type_as_function ## _base_init (gpointer g_class); \ +static void type_as_function ## _class_init (type ## Class *g_class);\ +static void type_as_function ## _init (type *object, \ + type ## Class *g_class);\ +static parent_type ## Class *parent_class = NULL; \ +static void \ +type_as_function ## _class_init_trampoline (gpointer g_class, \ + gpointer data) \ +{ \ + parent_class = (parent_type ## Class *) \ + g_type_class_peek_parent (g_class); \ + type_as_function ## _class_init ((type ## Class *)g_class); \ +} \ + \ +GType type_as_function ## _get_type (void); \ + \ +__declspec(dllexport) GType \ +type_as_function ## _get_type (void) \ +{ \ + static GType object_type = 0; \ + if (G_UNLIKELY (object_type == 0)) { \ + object_type = gst_type_register_static_full (parent_type_macro, #type, \ + sizeof (type ## Class), \ + type_as_function ## _base_init, \ + NULL, /* base_finalize */ \ + type_as_function ## _class_init_trampoline, \ + NULL, /* class_finalize */ \ + NULL, /* class_data */ \ + sizeof (type), \ + 0, /* n_preallocs */ \ + (GInstanceInitFunc) type_as_function ## _init, \ + NULL, \ + (GTypeFlags) 0); \ + additional_initializations (object_type); \ + } \ + return object_type; \ +} + +#define __GST_DO_NOTHING(type) /* NOP */ + +/** + * GST_BOILERPLATE: + * @type: the name of the type struct + * @type_as_function: the prefix for the functions + * @parent_type: the parent type struct name + * @parent_type_macro: the parent type macro + * + * Define the boilerplate type stuff to reduce typos and code size. Defines + * the get_type method and the parent_class static variable. + * + * + * + * GST_BOILERPLATE (GstFdSink, gst_fdsink, GstElement, GST_TYPE_ELEMENT); + * + * + */ +#define GST_BOILERPLATE(type,type_as_function,parent_type,parent_type_macro) \ + GST_BOILERPLATE_FULL (type, type_as_function, parent_type, parent_type_macro, \ + __GST_DO_NOTHING) + +/* Like GST_BOILERPLATE, but makes the type 1) implement an interface, and 2) + * implement GstImplementsInterface for that type + * + * After this you will need to implement interface_as_function ## _supported + * and interface_as_function ## _interface_init + */ +/** + * GST_BOILERPLATE_WITH_INTERFACE: + * @type: the name of the type struct + * @type_as_function: the prefix for the functions + * @parent_type: the parent type struct name + * @parent_type_as_macro: the parent type macro + * @interface_type: the name of the interface type struct + * @interface_type_as_macro: the interface type macro + * @interface_as_function: the interface function name prefix + * + * Like GST_BOILERPLATE, but makes the type 1) implement an interface, and 2) + * implement GstImplementsInterface for that type. + * + * After this you will need to implement interface_as_function ## _supported + * and interface_as_function ## _interface_init + */ +#define GST_BOILERPLATE_WITH_INTERFACE(type, type_as_function, \ + parent_type, parent_type_as_macro, interface_type, \ + interface_type_as_macro, interface_as_function) \ + \ +static void interface_as_function ## _interface_init (interface_type ## Class *klass); \ +static gboolean interface_as_function ## _supported (type *object, GType iface_type); \ + \ +static void \ +type_as_function ## _implements_interface_init (GstImplementsInterfaceClass *klass) \ +{ \ + klass->supported = (gboolean (*)(GstImplementsInterface*, GType))interface_as_function ## _supported; \ +} \ + \ +static void \ +type_as_function ## _init_interfaces (GType type) \ +{ \ + static const GInterfaceInfo implements_iface_info = { \ + (GInterfaceInitFunc) type_as_function ## _implements_interface_init,\ + NULL, \ + NULL, \ + }; \ + static const GInterfaceInfo iface_info = { \ + (GInterfaceInitFunc) interface_as_function ## _interface_init, \ + NULL, \ + NULL, \ + }; \ + \ + g_type_add_interface_static (type, GST_TYPE_IMPLEMENTS_INTERFACE, \ + &implements_iface_info); \ + g_type_add_interface_static (type, interface_type_as_macro, \ + &iface_info); \ +} \ + \ +GST_BOILERPLATE_FULL (type, type_as_function, parent_type, \ + parent_type_as_macro, type_as_function ## _init_interfaces) + +/** + * GST_CALL_PARENT: + * @parent_class_cast: the name of the class cast macro for the parent type + * @name: name of the function to call + * @args: arguments enclosed in '( )' + * + * Just call the parent handler. This assumes that there is a variable + * named parent_class that points to the (duh!) parent class. Note that + * 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) + +/** + * GST_CALL_PARENT_WITH_DEFAULT: + * @parent_class_cast: the name of the class cast macro for the parent type + * @name: name of the function to call + * @args: arguments enclosed in '( )' + * @def_return: default result + * + * Same as GST_CALL_PARENT(), but in case there is no implementation, it + * 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) + +/* Define possibly unaligned memory access method whether the type of + * architecture. */ +#if GST_HAVE_UNALIGNED_ACCESS + +#define _GST_GET(__data, __size, __end) \ + (GUINT##__size##_FROM_##__end (* ((guint##__size *) (__data)))) + +/** + * GST_READ_UINT64_BE: + * @data: memory location + * + * Read a 64 bit unsigned integer value in big endian format from the memory buffer. + */ +#define GST_READ_UINT64_BE(data) _GST_GET (data, 64, BE) +/** + * GST_READ_UINT64_LE: + * @data: memory location + * + * Read a 64 bit unsigned integer value in little endian format from the memory buffer. + */ +#define GST_READ_UINT64_LE(data) _GST_GET (data, 64, LE) +/** + * GST_READ_UINT32_BE: + * @data: memory location + * + * Read a 32 bit unsigned integer value in big endian format from the memory buffer. + */ +#define GST_READ_UINT32_BE(data) _GST_GET (data, 32, BE) +/** + * GST_READ_UINT32_LE: + * @data: memory location + * + * Read a 32 bit unsigned integer value in little endian format from the memory buffer. + */ +#define GST_READ_UINT32_LE(data) _GST_GET (data, 32, LE) +/** + * GST_READ_UINT16_BE: + * @data: memory location + * + * Read a 16 bit unsigned integer value in big endian format from the memory buffer. + */ +#define GST_READ_UINT16_BE(data) _GST_GET (data, 16, BE) +/** + * GST_READ_UINT16_LE: + * @data: memory location + * + * Read a 16 bit unsigned integer value in little endian format from the memory buffer. + */ +#define GST_READ_UINT16_LE(data) _GST_GET (data, 16, LE) +/** + * GST_READ_UINT8: + * @data: memory location + * + * Read an 8 bit unsigned integer value from the memory buffer. + */ +#define GST_READ_UINT8(data) (* ((guint8 *) (data))) + +#define _GST_PUT(__data, __size, __end, __num) \ + ((* (guint##__size *) (__data)) = GUINT##__size##_TO_##__end (__num)) + +/** + * GST_WRITE_UINT64_BE: + * @data: memory location + * @num: value to store + * + * Store a 64 bit unsigned integer value in big endian format into the memory buffer. + */ +#define GST_WRITE_UINT64_BE(data, num) _GST_PUT(data, 64, BE, num) +/** + * GST_WRITE_UINT64_LE: + * @data: memory location + * @num: value to store + * + * Store a 64 bit unsigned integer value in little endian format into the memory buffer. + */ +#define GST_WRITE_UINT64_LE(data, num) _GST_PUT(data, 64, LE, num) +/** + * GST_WRITE_UINT32_BE: + * @data: memory location + * @num: value to store + * + * Store a 32 bit unsigned integer value in big endian format into the memory buffer. + */ +#define GST_WRITE_UINT32_BE(data, num) _GST_PUT(data, 32, BE, num) +/** + * GST_WRITE_UINT32_LE: + * @data: memory location + * @num: value to store + * + * Store a 32 bit unsigned integer value in little endian format into the memory buffer. + */ +#define GST_WRITE_UINT32_LE(data, num) _GST_PUT(data, 32, LE, num) +/** + * GST_WRITE_UINT16_BE: + * @data: memory location + * @num: value to store + * + * Store a 16 bit unsigned integer value in big endian format into the memory buffer. + */ +#define GST_WRITE_UINT16_BE(data, num) _GST_PUT(data, 16, BE, num) +/** + * GST_WRITE_UINT16_LE: + * @data: memory location + * @num: value to store + * + * Store a 16 bit unsigned integer value in little endian format into the memory buffer. + */ +#define GST_WRITE_UINT16_LE(data, num) _GST_PUT(data, 16, LE, num) +/** + * GST_WRITE_UINT8: + * @data: memory location + * @num: value to store + * + * Store an 8 bit unsigned integer value into the memory buffer. + */ +#define GST_WRITE_UINT8(data, num) ((* (guint8 *) (data)) = (num)) + +#else /* GST_HAVE_UNALIGNED_ACCESS */ + +#define _GST_GET(__data, __idx, __size, __shift) \ + (((guint##__size) (((guint8 *) (__data))[__idx])) << __shift) + +#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_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_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_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_UINT16_BE(data) (_GST_GET (data, 0, 16, 8) | \ + _GST_GET (data, 1, 16, 0)) + +#define GST_READ_UINT16_LE(data) (_GST_GET (data, 1, 16, 8) | \ + _GST_GET (data, 0, 16, 0)) + +#define GST_READ_UINT8(data) (_GST_GET (data, 0, 8, 0)) + +#define _GST_PUT(__data, __idx, __size, __shift, __num) \ + (((guint8 *) (__data))[__idx] = (((guint##__size) __num) >> __shift) & 0xff) + +#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_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_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_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_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_LE(data, num) do { \ + _GST_PUT (data, 0, 16, 0, num); \ + _GST_PUT (data, 1, 16, 8, num); \ + } while (0) + +#define GST_WRITE_UINT8(data, num) do { \ + _GST_PUT (data, 0, 8, 0, num); \ + } while (0) + +#endif /* GST_HAVE_UNALIGNED_ACCESS */ + + +/* Miscellaneous utility macros */ + +/** + * GST_ROUND_UP_2: + * @num: integer value to round up + * + * Rounds an integer value up to the next multiple of 2. + */ +#define GST_ROUND_UP_2(num) (((num)+1)&~1) +/** + * GST_ROUND_UP_4: + * @num: integer value to round up + * + * Rounds an integer value up to the next multiple of 4. + */ +#define GST_ROUND_UP_4(num) (((num)+3)&~3) +/** + * GST_ROUND_UP_8: + * @num: integer value to round up + * + * Rounds an integer value up to the next multiple of 8. + */ +#define GST_ROUND_UP_8(num) (((num)+7)&~7) +/** + * GST_ROUND_UP_16: + * @num: integer value to round up + * + * Rounds an integer value up to the next multiple of 16. + */ +#define GST_ROUND_UP_16(num) (((num)+15)&~15) +/** + * GST_ROUND_UP_32: + * @num: integer value to round up + * + * Rounds an integer value up to the next multiple of 32. + */ +#define GST_ROUND_UP_32(num) (((num)+31)&~31) +/** + * GST_ROUND_UP_64: + * @num: integer value to round up + * + * Rounds an integer value up to the next multiple of 64. + */ +#define GST_ROUND_UP_64(num) (((num)+63)&~63) + +/** + * GST_ROUND_DOWN_2: + * @num: integer value to round down + * + * Rounds an integer value down to the next multiple of 2. + * + * Since: 0.10.12 + */ +#define GST_ROUND_DOWN_2(num) ((num)&(~1)) +/** + * GST_ROUND_DOWN_4: + * @num: integer value to round down + * + * Rounds an integer value down to the next multiple of 4. + * + * Since: 0.10.12 + */ +#define GST_ROUND_DOWN_4(num) ((num)&(~3)) +/** + * GST_ROUND_DOWN_8: + * @num: integer value to round down + * + * Rounds an integer value down to the next multiple of 8. + * + * Since: 0.10.12 + */ +#define GST_ROUND_DOWN_8(num) ((num)&(~7)) +/** + * GST_ROUND_DOWN_16: + * @num: integer value to round down + * + * Rounds an integer value down to the next multiple of 16. + * + * Since: 0.10.12 + */ +#define GST_ROUND_DOWN_16(num) ((num)&(~15)) +/** + * GST_ROUND_DOWN_32: + * @num: integer value to round down + * + * Rounds an integer value down to the next multiple of 32. + * + * Since: 0.10.12 + */ +#define GST_ROUND_DOWN_32(num) ((num)&(~31)) +/** + * GST_ROUND_DOWN_64: + * @num: integer value to round down + * + * Rounds an integer value down to the next multiple of 64. + * + * Since: 0.10.12 + */ +#define GST_ROUND_DOWN_64(num) ((num)&(~63)) + +void gst_object_default_error (GstObject * source, + GError * error, gchar * debug); + +/* element functions */ +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +void gst_element_create_all_pads (GstElement *element); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +GstPad* gst_element_get_compatible_pad (GstElement *element, GstPad *pad, + const GstCaps *caps); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + + +GstPadTemplate* gst_element_get_compatible_pad_template (GstElement *element, GstPadTemplate *compattempl); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + + +G_CONST_RETURN gchar* gst_element_state_get_name (GstState state); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +G_CONST_RETURN gchar * gst_element_state_change_return_get_name (GstStateChangeReturn state_ret); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + + +gboolean gst_element_link (GstElement *src, GstElement *dest); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +gboolean gst_element_link_many (GstElement *element_1, + GstElement *element_2, ...) G_GNUC_NULL_TERMINATED; +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +gboolean gst_element_link_filtered (GstElement * src, + GstElement * dest, + GstCaps *filter); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +void gst_element_unlink (GstElement *src, GstElement *dest); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +void gst_element_unlink_many (GstElement *element_1, + GstElement *element_2, ...) G_GNUC_NULL_TERMINATED; +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + + +gboolean gst_element_link_pads (GstElement *src, const gchar *srcpadname, + GstElement *dest, const gchar *destpadname); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +void gst_element_unlink_pads (GstElement *src, const gchar *srcpadname, + GstElement *dest, const gchar *destpadname); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + + +gboolean gst_element_link_pads_filtered (GstElement * src, const gchar * srcpadname, + GstElement * dest, const gchar * destpadname, + GstCaps *filter); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + + +gboolean gst_element_seek_simple (GstElement *element, + GstFormat format, + GstSeekFlags seek_flags, + gint64 seek_pos); + +/* util elementfactory functions */ +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +gboolean gst_element_factory_can_src_caps(GstElementFactory *factory, const GstCaps *caps); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +gboolean gst_element_factory_can_sink_caps(GstElementFactory *factory, const GstCaps *caps); + +/* util query functions */ +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +gboolean gst_element_query_position (GstElement *element, GstFormat *format, + gint64 *cur); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +gboolean gst_element_query_duration (GstElement *element, GstFormat *format, + gint64 *duration); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +gboolean gst_element_query_convert (GstElement *element, GstFormat src_format, gint64 src_val, + GstFormat *dest_format, gint64 *dest_val); + +/* element class functions */ +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +void gst_element_class_install_std_props (GstElementClass * klass, + const gchar * first_name, ...) G_GNUC_NULL_TERMINATED; + +/* pad functions */ +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +gboolean gst_pad_can_link (GstPad *srcpad, GstPad *sinkpad); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + + +void gst_pad_use_fixed_caps (GstPad *pad); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +GstCaps* gst_pad_get_fixed_caps_func (GstPad *pad); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +GstCaps* gst_pad_proxy_getcaps (GstPad * pad); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +gboolean gst_pad_proxy_setcaps (GstPad * pad, GstCaps * caps); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + + +GstElement* gst_pad_get_parent_element (GstPad *pad); + +/* util query functions */ +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +gboolean gst_pad_query_position (GstPad *pad, GstFormat *format, + gint64 *cur); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +gboolean gst_pad_query_duration (GstPad *pad, GstFormat *format, + gint64 *duration); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +gboolean gst_pad_query_convert (GstPad *pad, GstFormat src_format, gint64 src_val, + GstFormat *dest_format, gint64 *dest_val); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + + +gboolean gst_pad_query_peer_position (GstPad *pad, GstFormat *format, + gint64 *cur); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +gboolean gst_pad_query_peer_duration (GstPad *pad, GstFormat *format, + gint64 *duration); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +gboolean gst_pad_query_peer_convert (GstPad *pad, GstFormat src_format, gint64 src_val, + GstFormat *dest_format, gint64 *dest_val); + +/* bin functions */ +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +void gst_bin_add_many (GstBin *bin, GstElement *element_1, ...) G_GNUC_NULL_TERMINATED; +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +void gst_bin_remove_many (GstBin *bin, GstElement *element_1, ...) G_GNUC_NULL_TERMINATED; +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +GstPad * gst_bin_find_unconnected_pad (GstBin *bin, GstPadDirection direction); + +/* buffer functions */ +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +GstBuffer * gst_buffer_merge (GstBuffer * buf1, GstBuffer * buf2); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +GstBuffer * gst_buffer_join (GstBuffer * buf1, GstBuffer * buf2); +#ifndef GST_DISABLE_DEPRECATED +void gst_buffer_stamp (GstBuffer * dest, const GstBuffer * src); +#endif /* GST_DISABLE_DEPRECATED */ + +/* atomic functions */ +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +void gst_atomic_int_set (gint * atomic_int, gint value); + +/* probes */ +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +gulong gst_pad_add_data_probe (GstPad * pad, + GCallback handler, + gpointer data); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +void gst_pad_remove_data_probe (GstPad * pad, guint handler_id); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +gulong gst_pad_add_event_probe (GstPad * pad, + GCallback handler, + gpointer data); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +void gst_pad_remove_event_probe (GstPad * pad, guint handler_id); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +gulong gst_pad_add_buffer_probe (GstPad * pad, + GCallback handler, + gpointer data); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +void gst_pad_remove_buffer_probe (GstPad * pad, guint handler_id); + +/* tag emission utility functions */ +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +void gst_element_found_tags_for_pad (GstElement * element, + GstPad * pad, + GstTagList * list); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +void gst_element_found_tags (GstElement * element, + GstTagList * list); + +/* parse utility functions */ +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +GstElement * gst_parse_bin_from_description (const gchar * bin_description, + gboolean ghost_unconnected_pads, + GError ** err); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + + +GstClockTime gst_util_get_timestamp (void); + +G_END_DECLS + +#endif /* __GST_UTILS_H__ */