fix the proxy functions for query_accept_caps and query_caps to use the pad
forward helper functions which correctly forwards on the internally linked pads.
Remove the getcaps function on the pad and use the CAPS query for
the same effect.
Add PROXY_CAPS to the pad flags. This instructs the default caps event and query
handlers to pass on the CAPS related queries and events. This simplifies a lot
of elements that passtrough caps negotiation.
Make two utility functions to proxy caps queries and aggregate the result. Needs
to use the pad forward function instead later.
Make the _query_peer_ utility functions use the gst_pad_peer_query() function to
make sure the probes are emited properly.
The idea was originally that if one passed &dest_fmt with
dest_fmt=GST_FORMAT_DEFAULT, then the code answering the query
could change dest_fmt to the actual default format used. However,
in more than half a decade of GStreamer 0.10 no piece of code in
GStreamer has ever used that feature, nor are there that many
users of this API that actually check whether the format returned
is the original format passed before using the values returned.
Also, it's just annoying-to-use API in its own right.
For all these reasons, make it so that the destination format is
passed directly and can't be changed by the element queried.
Don't mix messages and pads and tags.
Make the sink post tag messages when a tag event is received.
Since tags are sticky on pads now, they can be retrieved from there
when needed.
See #651514 for details. It's apparently impossible to write code
that avoids both type punning warnings with old g_atomic headers and
assertions in the new. Thus, macros and a version check.
This reverts commit cf4fbc005c.
This change did not improve the situation for bindings because
queries are usually created, then directly passed to a function
and not stored elsewhere, and the writability problem with
miniobjects usually happens with buffers or caps instead.
GST_DISABLE_DEPRECATED should only affect visibility of declarations in headers,
not actually remove symbols. See GitDeveloperGuidelines and DeprecatingAPI
pages in wiki.
https://bugzilla.gnome.org/show_bug.cgi?id=402141
Add new functions to clarify how the caps are compared to the template caps of
the element factory. Improve the docs to point out the difference.
Deprecate: gst_element_factory_can_{src|sink}_caps
API: add gst_element_factory_can_{src|sink}_{any|all}_capps
https://bugzilla.gnome.org/show_bug.cgi?id=402141
We need to ensure we call gst_pad_check_link() with the two pads in the correct
order. The order depends on wheter we iterate src or sink pads.
Signed-off-by: Chen Rui <rui.chen@tieto.com>
The new request_new_pad_full vmethod provides an additional caps field,
which allows elements to take better decision process.
Also, add a gst_element_request_pad() function to allow developers to be
able to specify which pad template they want a pad of.
Convert gstutils to use that new method instead of the old one when more
efficient.
This is useful for being able to request pads in a more flexible way,
especially when the element can provide pads whose caps depend on
runtime configuration and therefore can't provide pre-registered
pad templates.
API: GstElement::request_new_pad_full
API: gst_element_request_pad
https://bugzilla.gnome.org/show_bug.cgi?id=637300
Make the _get_caps functions behave like the _get_caps_reffed variants and
remove the _reffed variants. This means that _get_caps doesn't return a writable
caps anymore and an explicit _make_writable() is needed before modifying the
caps.
And use it for the fraction comparisons in gstvalue.c instead
of using comparisons by first converting the fractions to double.
Should fix bug #628174.
API: gst_util_fraction_compare()
gst_element_link_many does some magic and creates ghostpads
if needed, but it didn't set the newly created ghostpad to
active if needed. This patch fixes it.
https://bugzilla.gnome.org/show_bug.cgi?id=626784
In gst_element_get_compatible_pad(), when trying to find a compatible pad on an
element for a given pad, there's no point in checking the element's sink pads
if the pad to link is a sink pad as well, or the element's source pads if the
given pad is a source pad already, since those would never be able to link
anyway. Should speed up linking using the convenience functions a little bit,
or at least reduce debug log output.
gst_pad_proxy_getcaps() would return the pad template caps if the other side
returned empty caps or if the intersection of all the caps on the other side
was empty.
https://bugzilla.gnome.org/show_bug.cgi?id=624203
No need to call gst_element_link_pads_filtered with filter=NULL, which would
call gst_element_link_pads() in that way. Call it directly to save a call and
expensive gobject type checks.
gst_util_greatest_common_divisor()
gst_util_double_to_fraction()
gst_util_fraction_to_double()
Using these instead of going over GValue has much lower overhead.
Also add float<->fraction transform functions for GValue.
In most places in core and baseclasses we just need the caps to do caps-
intersections. In that case ref'ed caps are enough (no need to copy).
This patch also switches the code to use the new functions.
API: gst_pad_get_caps_refed(), gst_pad_peer_get_caps_refed()
This is available in newer gcc releases and it should only exist
on platforms that provide some native 128bit integer arithmetic
instructions.
The x86-64 assembly for this is still kept for non-gcc compilers
that don't provide __uint128_t magic.
We can use a shift for scaling the denominator instead of a divide since the
denom is always positive. This avoids having the compiler generate code for the
different rounding rules when scaling negative values.
64bit x86 has native 64x64->128 bit multiply that we can use with some inline
assembler to speed up large multiplications.
Use bsr to find the number of leading zeros more efficiently.
The new functions are
gst_util_uint64_scale_int_round()
gst_util_uint64_scale_int_ceil()
gst_util_uint64_scale_round()
gst_util_uint64_scale_ceil()
Fixes bug #590919.
This reverts commit bebfde7502.
This change shouldn't be done in a stable release series as
applications are actually expecting the sender to be an
GstElement. One example is totem.
Move the gst_pad_can_link() implementation from gstutils to gstpad and use
gst_pad_link_prepare() to make it work correctly and also check the caps.
Make the broken implementation in gstutils static.
Small cleanups in the _get_fixed_caps() function.
Fixes#575682.
This will be mostly useful in all elements that have some kind of internal
seek/index table. Currently almost all of them (or even all of them)
are using a linear search although the used array is already sorted,
wasting some CPU time without good reason.
Fixes bug #573623.
Original commit message from CVS:
* gst/gstelement.c: (gst_element_message_full),
(gst_element_pads_activate):
* gst/gstobject.c: (gst_object_dispatch_properties_changed):
* gst/gstutils.c: (gst_pad_proxy_getcaps), (gst_pad_proxy_setcaps),
(gst_pad_add_data_probe_full), (gst_pad_add_event_probe_full),
(gst_pad_add_buffer_probe_full), (gst_pad_remove_data_probe),
(gst_pad_remove_event_probe), (gst_pad_remove_buffer_probe):
Assign debug statements to relevant categories instead of the 'default'
category so they don't get lost in debugging.
Original commit message from CVS:
* gst/gstdebugutils.c:
Add some ideas, how to make the graph smaller.
* gst/gstutils.c:
Add a comment from a debug session.
* libs/gst/base/gstbasetransform.c:
Log more context.
* libs/gst/controller/gstinterpolationcontrolsource.c:
Indet.
* plugins/elements/gstcapsfilter.c:
Fix typo in docs.
Original commit message from CVS:
* gst/gstutils.c: (gst_element_found_tags_for_pad):
Add FIXME for 0.11 to set the pad as message source and not
the element. Otherwise it's impossible to detect for which
pad the tags were found without adding an event probe
or something similar to the pad.
Original commit message from CVS:
* gst/gstutils.c: (gst_element_get_compatible_pad):
Check if the caps of the pads are compatible before returning
a pad and claiming it is compatible. This, among other things,
fixes a bug with gst-launch where an incompatible pad is chosen
and linking fails. Fixes bug #544003.
Original commit message from CVS:
2008-11-04 Andy Wingo <wingo@pobox.com>
* gst/gstutils.c (gst_util_seqnum_next): Refactor for clarity.
Also add API: to previous changelog entry.
Original commit message from CVS:
2008-11-04 Andy Wingo <wingo@pobox.com>
Add sequence numbers to events and messages. See #559250.
* gst/gstutils.c (gst_util_seqnum_next, gst_util_seqnum_compare):
New functions.
* gst/gstevent.h:
* gst/gstevent.c (_gst_event_copy, gst_event_new): Initialize new
events with a new sequence number, and copy it when copying.
(gst_event_get_seqnum, gst_event_set_seqnum): Accessors for an
event's sequence number.
* gst/gstmessage.h:
* gst/gstmessage.c (_gst_message_copy, gst_message_new_custom):
(gst_event_get_seqnum, gst_event_set_seqnum): As with events, so
with messages.
* docs/gst/gstreamer-sections.txt: Add new functions to the docs.
Original commit message from CVS:
* gst/gstutils.c: (gst_element_get_compatible_pad):
* tests/check/gst/gstghostpad.c: (GST_START_TEST):
* tests/check/gst/gstpad.c: (name_is_valid), (GST_START_TEST):
Fix all leaks due to the bug in gst_pad_template_new() by which it does
not steal the refcount of the given caps as stated.
REVERT THIS COMMIT ONCE FIXED !
REVERT THIS COMMIT ONCE FIXED !
REVERT THIS COMMIT ONCE FIXED !
REVERT THIS COMMIT ONCE FIXED !
REVERT THIS COMMIT ONCE FIXED !
REVERT THIS COMMIT ONCE FIXED !
Original commit message from CVS:
* gst/gstutils.c: Remove check in gst_pad_query_convert() that
src_val must be positive, because that's not a requirement.
This causes problems with converting negative granulepos
values for Dirac.
Original commit message from CVS:
patch by: Murray Cumming <murrayc@murrayc.com>
* gst/gstutils.c:
Mention that this is just like gst_buffer_merge() but with extra
unreffing for C coders. Advise language bindings not to wrap it.
Fixes Bug #533856.
Also fix file comment.
Original commit message from CVS:
* gst/gstparse.c: (_gst_parse_escape), (gst_parse_launchv):
* gst/gstutils.c: (gst_parse_bin_from_description):
* gst/parse/grammar.y: (graph):
More guards against bad input; typo fix; some minor clean-ups.
Original commit message from CVS:
* gst/gstinfo.c:
Explain why we copy the list.
* gst/gstpipeline.c:
Improve docs.
* gst/gstutils.c:
Add one debug-log statement to help tracing probelms with linking pads.
