GstFlagSet is a new type designed for negotiating sets
of boolean capabilities flags, consisting of a 32-bit
flags bitfield and 32-bit mask field. The mask field
indicates which of the flags bits an element needs to have
as specific values, and which it doesn't care about.
This allows efficient negotiation of arrays of boolean
capabilities.
The standard serialisation format is FLAGS:MASK, with
flags and mask fields expressed in hexadecimal, however
GstFlagSet has a gst_register_flagset() function, which
associates a new GstFlagSet derived type with an existing
GFlags gtype. When serializing a GstFlagSet with an
associated set of GFlags, it also serializes a human-readable
form of the flags for easier debugging.
It is possible to parse a GFlags style serialisation of a
flagset, without the hex portion on the front. ie,
+flag1/flag2/flag3+flag4, to indicate that
flag1 & flag4 must be set, and flag2/flag3 must be unset,
and any other flags are don't-care.
https://bugzilla.gnome.org/show_bug.cgi?id=746373
Boxed types can't be derived from, and we don't support
deriving from our special fundamental types (the code
checks for GType equality in most places.
API: gst_value_array_append_and_take_value
API: gst_value_list_append_and_take_value
We were already using this internally, this makes it public for code
which frequently appends values which are expensive to copy (like
structures, arrays, caps, ...).
Avoids copies of the values for users. The passed GValue will also
be 0-memset'ed for re-use.
New users can replace this kind of code:
gst_value_*_append_value(mycontainer, &myvalue);
g_value_unset(&myvalue);
by:
gst_value_*_append_and_take_value(mycontainer, &myvalue);
https://bugzilla.gnome.org/show_bug.cgi?id=701632
These are meant to specify features in caps that are required
for a specific structure, for example a specific memory type
or meta.
Semantically they could be though of as an extension of the media
type name of the structures and are handled exactly like that.
There isn't really any need to provide public API for that. It's not
used anywhere in practice, and we aim to provide an API that works
for GstCaps, not some kind of generic set manipulation API based on
GValue. Making this private also makes it easier to optimise this
later. We can always put it back if someone actually needs it.
int and int64 ranges can now have an optional step (defaulting to 1).
Members of the range are those values within the min and max bounds
which are a multiple of this step.
https://bugzilla.gnome.org/show_bug.cgi?id=665294
Which we had to add because GLib didn't have it
back in the day. Port everything to plain old
G_TYPE_DATE, which is also a boxed type. Ideally
we'd just use GDateTime for everything, but it
doesn't support not setting some of the fields
unfortuntely (which would be very useful for
tag handling in general, if we could express
2012-01 for example).
https://bugzilla.gnome.org/show_bug.cgi?id=666351
Original commit message from CVS:
* gst/gst_private.h:
* gst/gstbuffer.h:
* gst/gstevent.h:
* gst/gstformat.h:
* gst/gstmessage.h:
* gst/gstplugin.h:
* gst/gstquery.h:
* gst/gsttaglist.h:
* gst/gstvalue.h:
Move declaration of private _gst_foo_initialize() functions into
our private header file where they should have been all along.
Original commit message from CVS:
* gst/gstcaps.c: (gst_caps_to_string),
(gst_caps_from_string_inplace):
* gst/gststructure.c: (gst_structure_get_abbrs),
(gst_structure_to_string), (gst_structure_from_string):
* gst/gstvalue.c: (gst_value_set_structure),
(gst_value_get_structure), (gst_value_serialize_structure),
(gst_value_deserialize_structure), (_gst_value_initialize):
* gst/gstvalue.h:
* tests/check/gst/gststructure.c: (GST_START_TEST),
(gst_structure_suite):
* tests/check/gst/gstvalue.c: (GST_START_TEST):
Added GstStructure to gst_value_table and its related functions.
Changed gst_structure_to_string to print ';' in the end.
Changed gst_caps_to_string to not print ';' beteween its
fields (structures) anymore and remove the lastes ';' from latest
structure. Now it is possible to have nested structures.
In addition, backward compatibilty is assured by accepting '\0' as
end delimiter. Fixes: #487969.
API: add gst_value_set_structure()
API: add gst_value_get_structure()
Original commit message from CVS:
* gst/gstvalue.c: (gst_value_compare_list),
(gst_value_compare_fraction_range),
(gst_value_intersect_fraction_fraction_range),
(gst_value_intersect_fraction_range_fraction_range),
(gst_value_subtract_fraction_fraction_range),
(gst_value_subtract_fraction_range_fraction_range),
(gst_value_get_compare_func), (gst_value_compare),
(gst_value_compare_with_func):
* gst/gstvalue.h:
Saves the expensive lookup of the compare function in many cases
(#345444)
Original commit message from CVS:
* gst/gststructure.c:
Fix typo in docs and re-wrap docs blurb to not exceed 80 chars/line.
* gst/gstvalue.h:
Expand on the difference between arrays and lists as we use them.
Original commit message from CVS:
* gst/gstvalue.c:
Improve documentation for gst_value_union().
* gst/gstvalue.h:
Change return value for union, intersect and subtract functions
from gint to gboolean.
Original commit message from CVS:
* check/gst/capslist.h:
* check/gst/gstcaps.c: (GST_START_TEST):
* check/gst/gstvalue.c: (GST_START_TEST), (gst_value_suite):
* gst/gststructure.c: (gst_structure_parse_range),
(gst_structure_fixate_field_nearest_fraction):
* gst/gststructure.h:
* gst/gstvalue.c: (gst_value_init_fraction_range),
(gst_value_free_fraction_range), (gst_value_copy_fraction_range),
(gst_value_collect_fraction_range),
(gst_value_lcopy_fraction_range), (gst_value_set_fraction_range),
(gst_value_set_fraction_range_full),
(gst_value_get_fraction_range_min),
(gst_value_get_fraction_range_max),
(gst_value_serialize_fraction_range),
(gst_value_transform_fraction_range_string),
(gst_value_compare_fraction_range),
(gst_value_deserialize_fraction_range),
(gst_value_intersect_fraction_fraction_range),
(gst_value_intersect_fraction_range_fraction_range),
(gst_value_subtract_fraction_fraction_range),
(gst_value_subtract_fraction_range_fraction),
(gst_value_subtract_fraction_range_fraction_range),
(gst_value_collect_fraction), (gst_value_fraction_multiply),
(gst_value_fraction_subtract), (gst_value_deserialize_fraction),
(gst_value_transform_string_fraction), (_gst_value_initialize):
* gst/gstvalue.h:
Implement fraction ranges and extend GstFraction to support
arithmetic subtraction, as well as deserialization from integer
strings such as "100"
Add a testsuite as for int and double range set operations
Original commit message from CVS:
* gst/gstvalue.c: (gst_value_transform_fourcc_string),
(gst_value_serialize_fourcc):
* gst/gstvalue.h:
Drop leading '%' from GST_FOURCC_FORMAT, thus making it
consistent with our other format defines (#320324).
Original commit message from CVS:
2005-11-19 Andy Wingo <wingo@pobox.com>
* gst/gstvalue.h:
* gst/gstvalue.c (gst_value_array_append_value)
(gst_value_array_prepend_value, gst_value_array_get_size)
(gst_value_array_get_value): New API, copied from
gst_value_list_*, only operates on arrays.
(gst_value_list_append_value, gst_value_list_prepend_value)
(gst_value_list_concat, gst_value_list_get_size)
(gst_value_list_get_value): Only operate on lists. Fixes#156633.
* gst/gstvalue.c (gst_value_init_list_or_array): Renamed from
init_list, because it works on both.
(copy_garray_of_gstvalue): Renamed from gst_value_list_copy_array.
(gst_value_copy_list_or_array): Renamed from copy_list.
(gst_value_free_list_or_array): Renamed from free_list.
(gst_value_collect_list_or_array): Renamed from collect_list.
(gst_value_lcopy_list_or_array): Renamed from lcopy_list.
(gst_value_list_or_array_peek_pointer): Renamed from
list_peek_pointer.
(_gst_value_array_value_table, _gst_value_list_value_table):
Update value table functions.
(gst_value_compare_list_or_array): Renamed from compare_list.
Original commit message from CVS:
* docs/gst/gstreamer-sections.txt:
* gst/gstvalue.c: (gst_date_get_type), (_gst_value_initialize):
* gst/gstvalue.h:
give each value a _get_type, removes the DATA exports
