Commit graph

42 commits

Author SHA1 Message Date
Wim Taymans
76f7a001fc basetransform: add accept_caps vmethod
Allow subclasses to override the acceptcaps function because in some cases a
custom implementation can be much much faster than the default one.

See #621190
2010-06-14 12:45:20 +02:00
Wim Taymans
b90bef8ee5 libs/gst/base/gstbasetransform.*: Add vmethod that is called before we start the transform and which can be used to c...
Original commit message from CVS:
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_prepare_output_buffer),
(gst_base_transform_getrange), (gst_base_transform_chain):
* libs/gst/base/gstbasetransform.h:
Add vmethod that is called before we start the transform and which can
be used to configure the transform, such as dynamic properties.
2008-12-08 18:35:44 +00:00
Wim Taymans
8337ce91aa Implement method for reconfiguring basetransform.
Original commit message from CVS:
* docs/libs/gstreamer-libs-sections.txt:
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_handle_buffer), (gst_base_transform_getrange),
(gst_base_transform_chain), (gst_base_transform_suggest),
(gst_base_transform_reconfigure):
* libs/gst/base/gstbasetransform.h:
Implement method for reconfiguring basetransform.
API: GstBaseTransform::gst_base_transform_reconfigure()
2008-08-20 10:52:09 +00:00
Wim Taymans
30f8603645 docs/libs/gstreamer-libs-sections.txt: Add new function:
Original commit message from CVS:
* docs/libs/gstreamer-libs-sections.txt:
Add new function:
API: GstBaseTransform::gst_base_transform_suggest()
* libs/gst/base/gstbasetransform.c: (gst_base_transform_finalize),
(gst_base_transform_init), (gst_base_transform_transform_caps),
(gst_base_transform_transform_size),
(gst_base_transform_configure_caps),
(gst_base_transform_can_transform),
(gst_base_transform_find_transform), (gst_base_transform_setcaps),
(gst_base_transform_prepare_output_buffer),
(gst_base_transform_buffer_alloc),
(gst_base_transform_handle_buffer), (gst_base_transform_getrange),
(gst_base_transform_chain), (gst_base_transform_activate),
(gst_base_transform_set_passthrough),
(gst_base_transform_is_passthrough),
(gst_base_transform_set_in_place),
(gst_base_transform_is_in_place), (gst_base_transform_update_qos),
(gst_base_transform_set_qos_enabled),
(gst_base_transform_is_qos_enabled),
(gst_base_transform_set_gap_aware), (gst_base_transform_suggest),
(gst_base_transform_reconfigure):
* libs/gst/base/gstbasetransform.h:
Rewrite of basetransform to perform negotiation outside of the
buffer_alloc functions.  Fixes #545853.
* tests/check/libs/transform1.c: (GST_START_TEST),
(buffer_alloc_ct2):
Update unit test.
2008-08-05 11:11:00 +00:00
Stefan Kost
f368d089df libs/gst/base/: Fix doc typos and unify caps a bit.
Original commit message from CVS:
* libs/gst/base/gstbasesink.h:
* libs/gst/base/gstbasesrc.h:
* libs/gst/base/gstbasetransform.h:
* libs/gst/base/gstcollectpads.h:
Fix doc typos and unify caps a bit.
2008-04-25 13:22:32 +00:00
Sebastian Dröge
5f55ba792a API: Add gst_base_transform_set_gap_aware() to control whether the element correctly handles GST_BUFFER_FLAG_GAP or s...
Original commit message from CVS:
* docs/libs/gstreamer-libs-sections.txt:
* libs/gst/base/gstbasetransform.c: (gst_base_transform_init),
(gst_base_transform_prepare_output_buffer),
(gst_base_transform_set_gap_aware):
* libs/gst/base/gstbasetransform.h:
API: Add gst_base_transform_set_gap_aware() to control whether
the element correctly handles GST_BUFFER_FLAG_GAP or shouldn't
get buffers with this flag at all. Fixes #503231.
2007-12-14 16:52:38 +00:00
Wim Taymans
58cc3d675b libs/gst/base/gstbasetransform.c: Work around the brokenness of the event vmethod in basetransform. Prefer to return ...
Original commit message from CVS:
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_sink_event):
Work around the brokenness of the event vmethod in basetransform. Prefer
to return TRUE when the subclass returned FALSE (meaning don't forward
the event).
* libs/gst/base/gstbasetransform.h:
Clarify the docs.
2007-06-15 10:48:19 +00:00
Wim Taymans
caa1b7d068 libs/gst/base/gstbasetransform.h: Fix macro for locking/unlocking the transform lock.
Original commit message from CVS:
* libs/gst/base/gstbasetransform.h:
Fix macro for locking/unlocking the transform lock.
2007-05-21 11:29:28 +00:00
Stefan Kost
63a26ed519 docs/random/ensonic/dynlink.txt: More work on proposal for new core api.
Original commit message from CVS:
* docs/random/ensonic/dynlink.txt:
More work on proposal for new core api.
* docs/libs/gstreamer-libs-sections.txt:
* libs/gst/base/gstbasetransform.h:
API: GST_BASE_TRANSFORM_LOCK/UNLOCK added
* libs/gst/controller/gstcontroller.c:
(on_object_controlled_property_changed),
(gst_controller_sync_values),
(gst_controller_set_interpolation_mode):
* libs/gst/controller/gstcontroller.h:
Less verbose logging add docs for unimplemented parts and correctly
return when using unavailable parts.
2007-04-02 14:48:12 +00:00
Wim Taymans
ecc37d9389 libs/gst/base/gstbasetransform.*: Add support for dropping buffers with custom GstFlowReturn.
Original commit message from CVS:
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_sink_eventfunc),
(gst_base_transform_handle_buffer), (gst_base_transform_chain),
(gst_base_transform_activate):
* libs/gst/base/gstbasetransform.h:
Add support for dropping buffers with custom GstFlowReturn.
Set DISCONT flags on outgoing buffers based on QoS, incomming DISCONT
buffers or dropped buffers.
* docs/libs/gstreamer-libs-sections.txt:
docs for new custom return code.
* plugins/elements/gstidentity.c: (gst_identity_transform_ip):
Use drop support in base class to implement drop-probability.
2007-03-08 11:40:18 +00:00
Stefan Kost
efb8033bac More docs coverage and some ChangeLog surgery (add missing names)
Original commit message from CVS:
* gst/gstchildproxy.h:
* libs/gst/base/gstbasesink.h:
* libs/gst/base/gstbasesrc.h:
* libs/gst/base/gstbasetransform.h:
More docs coverage and some ChangeLog surgery (add missing names)
2007-02-15 12:05:09 +00:00
Thomas Vander Stichele
da6dcf9a64 docs/libs/gstreamer-libs-sections.txt: make sure GstBaseTransformClass shows up in the docs
Original commit message from CVS:

* docs/libs/gstreamer-libs-sections.txt:
make sure GstBaseTransformClass shows up in the docs
* libs/gst/base/gstbasetransform.c:
* libs/gst/base/gstbasetransform.h:
move docs so gtk-doc picks it up now
2006-05-03 16:45:11 +00:00
Stefan Kost
7e2286d79c Fix broken GObject macros
Original commit message from CVS:
* gst/gstindex.h:
* gst/gstxml.h:
* libs/gst/base/gstadapter.h:
* libs/gst/base/gstbasesink.h:
* libs/gst/base/gstbasesrc.h:
* libs/gst/base/gstbasetransform.h:
* libs/gst/base/gstcollectpads.h:
* libs/gst/base/gstpushsrc.h:
Fix broken GObject macros
2006-04-08 18:05:16 +00:00
Wim Taymans
1dcaa1fc4b libs/gst/base/gstbasetransform.*: Make basetransform virtual method for src events too.
Original commit message from CVS:
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_class_init), (gst_base_transform_init),
(gst_base_transform_sink_event),
(gst_base_transform_sink_eventfunc),
(gst_base_transform_src_event), (gst_base_transform_src_eventfunc),
(gst_base_transform_handle_buffer), (gst_base_transform_chain),
(gst_base_transform_set_property),
(gst_base_transform_get_property),
(gst_base_transform_change_state), (gst_base_transform_update_qos),
(gst_base_transform_set_qos_enabled),
(gst_base_transform_is_qos_enabled):
* libs/gst/base/gstbasetransform.h:
Make basetransform virtual method for src events too.
Handle QOS in basetransform.
API: gst_base_transform_update_qos
API: gst_base_transform_set_qos_enabled
API: gst_base_transform_is_qos_enabled
2006-03-13 11:27:57 +00:00
Wim Taymans
c45bd3fb9f Fix #333669, Add pad accessor defines for GstBaseTransform
Original commit message from CVS:
* docs/libs/gstreamer-libs-sections.txt:
* libs/gst/base/gstbasetransform.h:
Fix #333669, Add pad accessor defines for GstBaseTransform
Fix docs for GstBaseSrc.
2006-03-07 15:14:51 +00:00
Wim Taymans
37d77aaeee Small documentation fixes.
Original commit message from CVS:
* docs/gst/gstreamer-sections.txt:
* gst/gstbuffer.h:
* gst/gstvalue.c:
* libs/gst/base/gstbasetransform.h:
Small documentation fixes.
2006-03-07 15:08:57 +00:00
Wim Taymans
588e11ad39 libs/gst/: Documentation updates.
Original commit message from CVS:
* libs/gst/base/gstadapter.c:
* libs/gst/base/gstadapter.h:
* libs/gst/base/gstbasesink.c: (gst_base_sink_class_init),
(gst_base_sink_get_position):
* libs/gst/base/gstbasesink.h:
* libs/gst/base/gstbasesrc.c: (gst_base_src_class_init),
(gst_base_src_default_query), (gst_base_src_default_do_seek),
(gst_base_src_do_seek), (gst_base_src_perform_seek),
(gst_base_src_send_event), (gst_base_src_update_length),
(gst_base_src_get_range), (gst_base_src_loop),
(gst_base_src_start):
* libs/gst/base/gstbasesrc.h:
* libs/gst/base/gstbasetransform.h:
* libs/gst/base/gstcollectpads.h:
* libs/gst/base/gstpushsrc.c:
* libs/gst/base/gstpushsrc.h:
* libs/gst/dataprotocol/dataprotocol.c:
* libs/gst/dataprotocol/dataprotocol.h:
* libs/gst/net/gstnetclientclock.h:
* libs/gst/net/gstnettimeprovider.h:
Documentation updates.
2005-12-18 16:04:41 +00:00
Andy Wingo
a08a8d8fea libs/gst/base/: en-LARGE the padding.
Original commit message from CVS:
2005-11-29  Andy Wingo  <wingo@pobox.com>

* libs/gst/base/gstbasetransform.h:
* libs/gst/base/gstbasesrc.h:
* libs/gst/base/gstbasesink.h: en-LARGE the padding.

* gst/gstconfig.h.in (GST_PADDING_LARGE): New define, the number
of pointers by which to pad very extensible base classes (like the
ones in libs/gst/base).
2005-11-29 19:37:49 +00:00
Wim Taymans
a9f7f7b7b6 Doc fixes.
Original commit message from CVS:
Doc fixes.
2005-11-24 09:44:07 +00:00
Wim Taymans
a35882df1f More segment updates, replace code in plugins with segment helper functions.
Original commit message from CVS:
* check/gst/gstsegment.c: (GST_START_TEST):
* docs/design/part-TODO.txt:
* gst/base/gstbasesink.c: (gst_base_sink_handle_object),
(gst_base_sink_event), (gst_base_sink_do_sync),
(gst_base_sink_activate_pull), (gst_base_sink_get_position),
(gst_base_sink_query), (gst_base_sink_change_state):
* gst/base/gstbasesink.h:
* gst/base/gstbasesrc.c: (gst_base_src_init), (gst_base_src_query),
(gst_base_src_default_newsegment),
(gst_base_src_configure_segment), (gst_base_src_do_seek),
(gst_base_src_get_range), (gst_base_src_loop),
(gst_base_src_change_state):
* gst/base/gstbasesrc.h:
* gst/base/gstbasetransform.c:
(gst_base_transform_prepare_output_buf),
(gst_base_transform_event), (gst_base_transform_change_state):
* gst/base/gstbasetransform.h:
* gst/base/gstcollectpads.c: (gst_collect_pads_add_pad),
(gst_collect_pads_event):
* gst/base/gstcollectpads.h:
* gst/elements/gstfakesrc.c: (gst_fake_src_init),
(gst_fake_src_create):
* gst/elements/gstfakesrc.h:
* gst/elements/gstidentity.c: (gst_identity_transform_ip):
* gst/gstsegment.c: (gst_segment_init), (gst_segment_set_duration),
(gst_segment_set_last_stop), (gst_segment_set_seek),
(gst_segment_set_newsegment), (gst_segment_to_stream_time),
(gst_segment_to_running_time), (gst_segment_clip):
* gst/gstsegment.h:
More segment updates, replace code in plugins with segment
helper functions.
2005-11-21 17:09:45 +00:00
Andy Wingo
c557e030a9 gst/gstclock.h (GstClock): Add rate and offset properties, preserving ABI stability. Add rate/offset accessors. Will ...
Original commit message from CVS:
2005-11-17  Andy Wingo  <wingo@pobox.com>

* gst/gstclock.h (GstClock): Add rate and offset properties,
preserving ABI stability. Add rate/offset accessors. Will file bug
for the freeze break.

* gst/gstclock.c (gst_clock_adjust_unlocked): Implement using rate
and offset, trying to keep precision and avoiding
underflow/overflow.
(gst_clock_set_rate_offset, gst_clock_get_rate_offset): New
functions. Make gst_clock_set_time_adjust obsolete.
(gst_clock_set_time_adjust): Note that this function is obsolete.
Will file bug soon.

* gst/base/gstbasetransform.h: Make the ABI-stability hack
greppable by using GST_PADDING-1+1.
2005-11-17 11:51:49 +00:00
Wim Taymans
eb29555a92 gst/base/gstbasesink.c: 0 segment values are 0 in any format.
Original commit message from CVS:
* gst/base/gstbasesink.c: (gst_base_sink_handle_object):
0 segment values are 0 in any format.

* gst/base/gstbasetransform.c: (gst_base_transform_event):
* gst/base/gstbasetransform.h:
Parse newsegment correctly in basetransform

* gst/elements/gstidentity.c: (gst_identity_transform_ip):
Sync to clock using updated segment values.
2005-11-15 16:47:07 +00:00
Wim Taymans
f2e8f7198f gst/base/gstbasesink.c: Some more debugging.
Original commit message from CVS:
* gst/base/gstbasesink.c: (gst_base_sink_handle_object),
(gst_base_sink_do_sync), (gst_base_sink_get_position):
Some more debugging.

* gst/base/gstbasetransform.c: (gst_base_transform_finalize),
(gst_base_transform_init), (gst_base_transform_buffer_alloc),
(gst_base_transform_event), (gst_base_transform_getrange),
(gst_base_transform_chain):
* gst/base/gstbasetransform.h:
Fix debugging,
Protect transform and concurrent buffer alloc with a new lock.
Try not to break ABI/API.
2005-10-27 20:59:00 +00:00
Stefan Kost
349aa7e2e6 fixing examples fixing docs typos changing log priority in error situations
Original commit message from CVS:
* examples/controller/audio-example.c: (main):
* examples/queue/queue.c: (event_loop):
* gst/base/gstbasetransform.h:
* gst/gstelement.c: (gst_element_send_event):
* gst/gstevent.h:
* gst/gstpad.c: (gst_pad_send_event):
fixing examples
fixing docs typos
changing log priority in error situations
2005-10-26 18:57:43 +00:00
Thomas Vander Stichele
2dd1598c56 whitespace fixes
Original commit message from CVS:
whitespace fixes
2005-10-15 15:30:24 +00:00
Stefan Kost
2a7a17ce2b added more docs
Original commit message from CVS:
* docs/gst/gstreamer-sections.txt:
* gst/base/gstbasetransform.h:
* gst/gstindex.h:
added more docs
2005-09-25 18:34:49 +00:00
Jan Schmidt
1feeaffc7f check/gst-libs/controller.c: Header include fix.
Original commit message from CVS:
* check/gst-libs/controller.c:
Header include fix.
* gst/base/gstbasetransform.c:
(gst_base_transform_default_prepare_buf),
(gst_base_transform_handle_buffer):
* gst/base/gstbasetransform.h:
Some more basetransform changes and fixes to enable sub-classes
that modify buffer metadata only.
* gst/elements/gstcapsfilter.c: (gst_capsfilter_class_init),
(gst_capsfilter_init), (gst_capsfilter_transform_ip),
(gst_capsfilter_prepare_buf):
If the output pad has fixed allowed caps and input buffers
don't have any, set the fixed caps on outgoing buffers.
2005-09-09 23:45:15 +00:00
Jan Schmidt
6ed5bee3b0 check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu...
Original commit message from CVS:
* check/elements/identity.c: (GST_START_TEST):
Make the error a little clearer when the test fails because
identity made a copy of the buffer.
* docs/gst/gstreamer-sections.txt:
New symbols in gstbasetransform.h
* gst/base/gstbasetransform.c: (gst_base_transform_class_init),
(gst_base_transform_init), (gst_base_transform_transform_size),
(gst_base_transform_configure_caps), (gst_base_transform_setcaps),
(gst_base_transform_default_prepare_buf),
(gst_base_transform_get_unit_size),
(gst_base_transform_buffer_alloc),
(gst_base_transform_handle_buffer), (gst_base_transform_chain),
(gst_base_transform_change_state),
(gst_base_transform_set_passthrough),
(gst_base_transform_set_in_place),
(gst_base_transform_is_in_place):
* gst/base/gstbasetransform.h:
Change BaseTransform to separate in_place operate from same_caps
output. in_place implies that the element can perform the transform
on incoming buffers in-place, even if the caps on the output are
different.
Sub-class elements can now implement special buffer allocation
methods for outgoing buffers if they wish to.
Big documentation addition.
* gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip):
* gst/elements/gstelements.c:
Changes for basetransform modifications.
* gst/elements/Makefile.am:
* gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create):
Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
Wim Taymans
2db910992f gst/base/gstbasetransform.*: Handle the case where we are not negotiated more gracefully.
Original commit message from CVS:
* gst/base/gstbasetransform.c: (gst_base_transform_configure_caps),
(gst_base_transform_setcaps), (gst_base_transform_handle_buffer),
(gst_base_transform_chain), (gst_base_transform_change_state):
* gst/base/gstbasetransform.h:
Handle the case where we are not negotiated more gracefully.
2005-08-31 13:41:19 +00:00
Thomas Vander Stichele
6c3416a44d gst/base/: fix up some debugging
Original commit message from CVS:

* gst/base/gstbasesink.c: (gst_base_sink_handle_object):
* gst/base/gstbasetransform.c: (gst_base_transform_transform_size),
fix up some debugging
(gst_base_transform_get_unit_size),
(gst_base_transform_buffer_alloc), (gst_base_transform_event),
(gst_base_transform_handle_buffer):
* gst/base/gstbasetransform.h:
handle and store timed NEWSEGMENT events so that subclasses that
calculate time by counting samples have a segment_start time they
need to add to their timestamps - see audioresample
2005-08-26 11:56:11 +00:00
Wim Taymans
b9ab9854e3 gst/base/gstbasetransform.*: Cache caps unit_size.
Original commit message from CVS:
* gst/base/gstbasetransform.c: (gst_base_transform_init),
(gst_base_transform_transform_size),
(gst_base_transform_configure_caps),
(gst_base_transform_get_unit_size),
(gst_base_transform_buffer_alloc),
(gst_base_transform_change_state):
* gst/base/gstbasetransform.h:
Cache caps unit_size.
Make sure we cannot negotiate up and downstream at the
same time.
2005-08-25 19:36:05 +00:00
Thomas Vander Stichele
31e37fe64c add docs
Original commit message from CVS:
add docs
2005-08-25 18:54:00 +00:00
Thomas Vander Stichele
6519d7bfba gst/base/gstbasetransform.c: use gboolean return values and pointers to size so we can use the full GST_BUFFER_SIZE r...
Original commit message from CVS:
* gst/base/gstbasetransform.c: (gst_base_transform_transform_caps),
(gst_base_transform_transform_size), (gst_base_transform_getcaps),
(gst_base_transform_setcaps), (gst_base_transform_get_unit_size),
(gst_base_transform_buffer_alloc),
(gst_base_transform_handle_buffer):
use gboolean return values and pointers to size so we can use the
full GST_BUFFER_SIZE range (guint) for buffer sizes
use GstPadDirection for transform_caps
* gst/base/gstbasetransform.h:
rename get_size to get_unit_size since that's what it is
* gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_caps):
use GstPadDirection for transform_caps
* gst/gstbuffer.c: (gst_buffer_new_and_alloc):
* gst/gstutils.h:
cleanup and debugging
2005-08-24 13:33:21 +00:00
Wim Taymans
15af2428df gst/base/gstbasetransform.*: Many fixes and new features added by Thomas. Can now also do transforms with variable si...
Original commit message from CVS:
* gst/base/gstbasetransform.c: (gst_base_transform_init),
(gst_base_transform_transform_caps),
(gst_base_transform_transform_size),
(gst_base_transform_configure_caps), (gst_base_transform_setcaps),
(gst_base_transform_get_size), (gst_base_transform_buffer_alloc),
(gst_base_transform_handle_buffer):
* gst/base/gstbasetransform.h:
Many fixes and new features added by Thomas. Can now also do
transforms with variable sizes and a custom fixate_caps function.
2005-08-24 11:44:24 +00:00
Tim-Philipp Müller
46cc9bc152 gst/: Add padding to our base elements' class and instance structs and to GstIterator (you will need to rebuild all p...
Original commit message from CVS:
* gst/base/gstadapter.h:
* gst/base/gstbasesink.h:
* gst/base/gstbasesrc.h:
* gst/base/gstbasetransform.h:
* gst/base/gstcollectpads.h:
* gst/base/gstpushsrc.h:
* gst/gstiterator.h:
Add padding to our base elements' class and instance structs and
to GstIterator (you will need to rebuild all plugins and apps!)
2005-08-08 13:31:09 +00:00
Andy Wingo
e20ed97cb2 gst/elements/gstcapsfilter.c: Reimplement using basetransform, fixes buffer_alloc proxying among other things.
Original commit message from CVS:
2005-08-04  Andy Wingo  <wingo@pobox.com>

* gst/elements/gstcapsfilter.c: Reimplement using basetransform,
fixes buffer_alloc proxying among other things.

* gst/base/gstbasetransform.c:
* gst/base/gstbasetransform.h:
Revert patch to gstbasetransform from 7-28 removing
delay_configure.

* gst/base/gstbasetransform.h (GstBaseTransformClass.get_size):
* gst/base/gstbasetransform.c (gst_base_transform_get_size):
Semantics changed, should return not the size of the output buffer
but the byte size of a buffer with a given caps.

* gst/base/gstbasetransform.c (gst_base_transform_getcaps): Better
debug object.
(gst_base_transform_configure_caps): Don't set out_size here: (in,
out) are not the pad caps until setcaps finishes.
(gst_base_transform_buffer_alloc): Proxy the buffer_alloc for the
not-in-place case as well. Deal with changing from in-place to
not-in-place within calling pad_alloc_buffer. Still a bit
concerned about the overhead here...
2005-08-04 19:40:43 +00:00
Ronald S. Bultje
cd76217ce5 gst/base/gstbasetransform.*: Remove broken delay_configure (fixes renegotiation of software scaling pipelines); remov...
Original commit message from CVS:
* gst/base/gstbasetransform.c: (gst_base_transform_setcaps),
(gst_base_transform_handle_buffer):
* gst/base/gstbasetransform.h:
Remove broken delay_configure (fixes renegotiation of software
scaling pipelines); remove some leftover printf()s.
2005-07-28 11:49:56 +00:00
Wim Taymans
7f4581d977 gst/base/gstbasetransform.*: Make passthrough work using the bufferpools.
Original commit message from CVS:
* gst/base/gstbasetransform.c: (gst_base_transform_init),
(gst_base_transform_transform_caps), (gst_base_transform_getcaps),
(gst_base_transform_configure_caps), (gst_base_transform_setcaps),
(gst_base_transform_get_size), (gst_base_transform_buffer_alloc),
(gst_base_transform_handle_buffer), (gst_base_transform_getrange),
(gst_base_transform_chain), (gst_base_transform_change_state),
(gst_base_transform_set_passthrough),
(gst_base_transform_is_passthrough):
* gst/base/gstbasetransform.h:
Make passthrough work using the bufferpools.
Changed API a bit, subclasses have to write into a buffer
provided by the base class.
More debug info in nego functions.

* gst/elements/gstidentity.c: (gst_identity_init),
(gst_identity_transform):
Port to new base class.
2005-07-15 10:41:32 +00:00
Andy Wingo
c1d34b8acf tests/network-clock.scm: Commentary update.
Original commit message from CVS:
2005-07-01  Andy Wingo  <wingo@pobox.com>

* tests/network-clock.scm: Commentary update.

* gst/elements/gstidentity.c (PROP_DUPLICATE): Gone daddy gone.
Didn't really make sense, not implementable with basetransform,
etc.
(gst_identity_transform): Unref inbuf via make_writable. Feeble
attempt at implementing the sync property, needs an unlock method.

* gst/base/gstbasetransform.c (gst_base_transform_transform_caps):
New func, by default returns the same caps (the identity
transformation).
(gst_base_transform_getcaps): Uses transform_caps to return
something sensible.
(gst_base_transform_setcaps): Complicated logic to get caps on
both pads, even if they are different, and to call set_caps once
for every time both pads get their caps set.
(gst_base_transform_handle_buffer): Give the ref to the transform
function. Allows in-place modification of the buffer.

* gst/base/gstbasetransform.h (transform_caps): New class method.
Given caps on one side, what can I do on the other.
(set_caps): Take two caps, one for each side of the element.

* gst/gstpad.h:
* gst/gstpad.c (gst_pad_fixate_caps): Change prototype to modify
caps in place. This is safe because we can check the mutability of
the caps, and a good idea because fixate functions are just called
as a matter of last resort. (Not actually implemented.)
(gst_pad_set_caps): If the caps we're setting is actually the same
as the existing pad caps, just update the pointer without calling
setcaps. Assert that caps is either NULL or fixed, as per the
docs.

* gst/gstghostpad.c: Update for fixate changes.
2005-07-01 16:46:59 +00:00
Thomas Vander Stichele
0b44c713a7 adding basetransform and iterator docs
Original commit message from CVS:
adding basetransform and iterator docs
2005-06-27 14:40:09 +00:00
Wim Taymans
96d17a3410 gst/: Added start/stop methods to transform base class so subclasses don't need to deal with state changes even.
Original commit message from CVS:
* gst/base/gstbasetransform.c: (gst_base_transform_base_init),
(gst_base_transform_class_init), (gst_base_transform_init),
(gst_base_transform_setcaps), (gst_base_transform_handle_buffer),
(gst_base_transform_get_property),
(gst_base_transform_sink_activate),
(gst_base_transform_src_activate),
(gst_base_transform_change_state):
* gst/base/gstbasetransform.h:
* gst/elements/gstidentity.c: (gst_identity_class_init),
(gst_identity_event), (gst_identity_check_perfect),
(gst_identity_transform), (gst_identity_start),
(gst_identity_stop):
Added start/stop methods to transform base class so subclasses
don't need to deal with state changes even.
2005-03-31 10:10:55 +00:00
Wim Taymans
bb1be5f509 gst/: Simplify pad activation.
Original commit message from CVS:
* gst/base/Makefile.am:
* gst/base/README:
* gst/base/gstbasesink.c: (gst_basesink_get_type),
(gst_basesink_base_init), (gst_basesink_class_init),
(gst_basesink_pad_getcaps), (gst_basesink_init),
(gst_basesink_activate), (gst_basesink_change_state):
* gst/base/gstbasesink.h:
* gst/base/gstbasetransform.c: (gst_base_transform_get_type),
(gst_base_transform_base_init), (gst_base_transform_finalize),
(gst_base_transform_class_init), (gst_base_transform_init),
(gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps),
(gst_base_transform_event), (gst_base_transform_getrange),
(gst_base_transform_chain), (gst_base_transform_handle_buffer),
(gst_base_transform_set_property),
(gst_base_transform_get_property),
(gst_base_transform_sink_activate),
(gst_base_transform_src_activate),
(gst_base_transform_change_state):
* gst/base/gstbasetransform.h:
* gst/elements/gstidentity.c: (gst_identity_finalize),
(gst_identity_class_init), (gst_identity_init),
(gst_identity_event), (gst_identity_check_perfect),
(gst_identity_transform), (gst_identity_set_property),
(gst_identity_get_property), (gst_identity_change_state):
* gst/elements/gstidentity.h:
* gst/gstelement.c: (gst_element_get_state_func),
(gst_element_lost_state), (gst_element_pads_activate):
* gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active),
(gst_pad_check_pull_range), (gst_pad_pull_range):
* gst/gstpad.h:
Simplify pad activation.
Added function to check if pull_range can be performed.
Error out when pulling inactive or flushing pads.
Removed const from refcounted types as it does not make sense.
Simplify pad templates in basesink
Added base class for simple 1-to-1 transforms.
Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00