Original commit message from CVS:
* libs/gst/base/gstbasetransform.c: (gst_base_transform_init),
(gst_base_transform_getcaps), (gst_base_transform_find_transform),
(gst_base_transform_acceptcaps), (gst_base_transform_getrange):
Add beginnings of a more optimized acceptcaps function than the default
core one.
Original commit message from CVS:
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_find_transform), (gst_base_transform_getrange):
If we have a fixate function, call it even if we already have fixed caps
because the subclass might add some caps. Makes audioconvert add a
default channel layout.
Original commit message from CVS:
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_prepare_output_buffer),
(gst_base_transform_getrange):
Clear the output buffer variable.
Cleanups to the error path in the getrange function.
Fixes#557649.
Original commit message from CVS:
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_prepare_output_buffer),
(gst_base_transform_buffer_alloc), (gst_base_transform_suggest):
Protect sink_alloc caps with the sinkpad lock to avoid nasty caps
refcount problems as seen in banshee and maybe also in farsight2.
Remove atomic int now that we need to take the lock anyways.
Original commit message from CVS:
* libs/gst/base/gstbasetransform.c:
* plugins/elements/gstcapsfilter.c:
* tests/check/Makefile.am:
* tests/check/elements/.cvsignore:
* tests/check/elements/capsfilter.c:
Fix assertion in basetransform when the subclass chooses not to
allocate a buffer in prepare_buffer(), and make capsfilter error out
cleanly if requested to apply caps that don't completely specify the
buffer. Fixes#551509
Original commit message from CVS:
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_prepare_output_buffer):
Take new caps ref because our old one might have been gone when the
subclass performs a gst_pad_set_caps() on the srcpad. See #548764.
Original commit message from CVS:
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_prepare_output_buffer):
If the element is configured in passthrough mode but the
prepare_output_buffer gave us a new output buffer, discard that buffer
and reuse the input buffer.
Original commit message from CVS:
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_prepare_output_buffer),
(gst_base_transform_buffer_alloc):
Go over the buffer_alloc function again and make sure we always end up
allocating a buffer.
Add some more docs.
Avoid doing pad alloc when we have a pending suggestion because we
cannot yet deal with changing caps in that case. Fixes#547728
Original commit message from CVS:
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_transform_caps),
(gst_base_transform_prepare_output_buffer),
(gst_base_transform_buffer_alloc), (gst_base_transform_suggest):
Don't overwrite the outsize when calculating the expected size of a new
buffer because we still need it in case we cannot process the new
buffer.
When converting the size of the new buffer to an upstream size, actually
use the expected size of the buffer, not some other random value.
Use an atomic int to signal that a new upstream caps suggestion is
available.
When we can convert the current buffer to a new format, check if the
buffer size is of the expected size and allocate a new buffer of the
expected size when this is not the case.
* tests/check/libs/transform1.c: (GST_START_TEST):
remove ifdeffed code from the unit test.
Original commit message from CVS:
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_class_init), (gst_base_transform_init),
(gst_base_transform_transform_caps),
(gst_base_transform_prepare_output_buffer):
Add debug info.
When a buffer is writable, its metadata is also writable so we don't
need to subbuffer (which then makes the buffer not-writable anymore).
Original commit message from CVS:
Patch by: Tim-Philipp Müller <tim.muller at collabora co uk>
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_sink_event):
Unref events that the GstBaseTransform::event vfunc didn't want to
have forwarded by the base class. Closes a leak in identity.
Fixes bug #446763.
Original commit message from CVS:
Patch by: Sjoerd Simons <sjoerd at luon dot net>
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_buffer_alloc):
Check the caps of the buffer returned by gst_pad_alloc_buffer() and
fall back to default negotiation in the chain function if the caps
are different from what was requested. Fixes bug #526768.
Original commit message from CVS:
Based on a patch by: Sjoerd Simons <sjoerd at luon dot net>
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_buffer_alloc):
Don't passthrough buffer allocation too easily if the caps change.
This breaks when working in passthrough mode and upstream changes
it's caps. Fixes bug #526768.
Original commit message from CVS:
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_prepare_output_buffer):
Also unset the GAP flag on buffers if we're working inplace but
the element is not GAP-aware.
Mark a comment as FIXME 0.11.
Original commit message from CVS:
Patch by: Mark Nauwelaerts <manauw at skynet be>
* gst/gstclock.h:
* libs/gst/base/gstbasesrc.h:
* libs/gst/base/gstbasetransform.c:
* libs/gst/check/gstcheck.c:
Small documentation fixes. Fixes#523978.
Original commit message from CVS:
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_transform_size):
Print element name with g_warning() if there's a problem
with the unit size.
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.
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.
Original commit message from CVS:
* libs/gst/base/gstbasetransform.c: (gst_base_transform_chain):
Properly set the last_stop position on GstSegment. This will only happen
if there is a buffer to push out.
Original commit message from CVS:
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_buffer_alloc):
always_in_place does not mean that the sink and source caps are the
same! Make sure we don't blindly proxy the buffer_alloc in this case.
Original commit message from CVS:
* libs/gst/base/gstbasetransform.c: (gst_base_transform_activate):
Make sure streaming has finished before calling the ::stop() vfunc,
since that vfunc might clear state which is being used in the
streaming thread. This fixes a race that caused crashes in
audioresample when shutting down a pipeline (#420106).
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.
Original commit message from CVS:
* libs/gst/base/gstbasetransform.c: (gst_base_transform_init),
(gst_base_transform_check_get_range):
Implement a checkgetrange function instead of relying on the default
core behaviour that assumes we can operate in pull mode if we have a
getrange function. First step at fixing #385084.
Original commit message from CVS:
2007-01-12 Andy Wingo <wingo@pobox.com>
* libs/gst/base/gstbasetransform.c (gst_base_transform_activate):
Factor start/stop into this private function instead of partially
in activate functions and partially in the change_state function.
Fixes setup before the element has changed from READY->PAUSED, as
is the case in pull-mode pipelines.
(gst_base_transform_sink_activate_push)
(gst_base_transform_src_activate_pull): Refactor to use
gst_base_transform_activate().
(gst_base_transform_change_state): Removed, not needed any more.
* libs/gst/base/gstbasesink.c (gst_base_sink_negotiate_pull):
Truncate before fixating.
Original commit message from CVS:
2007-01-12 Andy Wingo <wingo@pobox.com>
* libs/gst/base/gstbasetransform.c (_GstBaseTransformPrivate):
(gst_base_transform_init, gst_base_transform_sink_activate_push)
(gst_base_transform_src_activate_pull):
Track the activation mode.
(gst_base_transform_setcaps): In pull mode, when activating the
src pad, after activating the sink pad, activate the sink pad's
peer, as discussed in part-negotiation.txt.
* libs/gst/base/gstbasesrc.h:
* libs/gst/base/gstbasesrc.c (gst_base_src_fixate): Add fixate
vmethod, as in basesink.
* libs/gst/base/gstbasesink.h: Reformat docs, add fixate vmethod.
* libs/gst/base/gstbasesink.c (gst_base_sink_pad_setcaps): In pull
mode, first proxy the setcaps to the peer pad.
(gst_base_sink_pad_fixate): Add a fixate function that calls the
new fixate vmethod.
(gst_base_sink_default_activate_pull): Rename from
gst_base_sink_activate_pull.
(gst_base_sink_negotiate_pull): New function, performs negotiation
in pull mode before calling ::activate_pull().
(gst_base_sink_pad_activate_pull): Actually call the activate_pull
vmethod instead of the default implementation. I have no idea how
this worked before. Negotiate before calling activate_pull.
Original commit message from CVS:
* gst/gstevent.h:
Add small comment.
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_sink_eventfunc):
Debug segment values *after* updating them as this is more
interesting.
Original commit message from CVS:
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_buffer_alloc):
Check if requested caps are the same as the sinks caps IF
->have_same_caps is TRUE. If they are not, act as if have_same_caps
is FALSE.
This fixes the renegotiation issues stated in #352827.
Original commit message from CVS:
* docs/gst/gstreamer-sections.txt:
* gst/gstcaps.c: (gst_structure_is_equal_foreach),
(gst_caps_merge):
* gst/gstcaps.h:
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_transform_caps):
API: Add gst_caps_merge() and use it in basetransform, fixes#345444
in a better way
Original commit message from CVS:
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_buffer_alloc):
Only call downstream buffer_alloc if transform element is passthrough
or always_in_place. Closes#350449.
Original commit message from CVS:
* gst/gst.c:
* gst/gstpad.c: (gst_pad_set_active):
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_transform_caps):
Simplify caps to get rid of duplicates, fixes#345444
Original commit message from CVS:
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_buffer_alloc):
Even if we can't figure out the proper format to request downstream,
call buffer_alloc() downstream with the input parameters without setting
the caps on the srcpad. This will force negotiation in the chain
function.
Closes#350449
Original commit message from CVS:
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_buffer_alloc):
Use OBJECT_LOCK and refcounting to get the pad caps in the
buffer_alloc function because the caps could change while we are
busy with them. Fixes#349105
Original commit message from CVS:
* libs/gst/base/gstbasetransform.c: (gst_base_transform_setcaps):
Extra debug output
* tests/check/libs/gdp.c: (gst_dp_suite):
Take a whack at fixing the ppc compile using a different define to
disable the broken test.
* tests/check/pipelines/parse-launch.c: (GST_START_TEST):
Remove excess g_print()
Original commit message from CVS:
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_prepare_output_buffer),
(gst_base_transform_buffer_alloc),
(gst_base_transform_handle_buffer):
Make sure the buffer we pass to transform_ip has a refcount of
1 and thus is writable. Fixes#343196
Original commit message from CVS:
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_buffer_alloc):
Forgot to remove two unneeded unrefs.
Simplify a check _is_equal allready checks the obvious case.
Original commit message from CVS:
* gst/gstcaps.c: (gst_caps_replace):
Fix crasher when passed NULL. Doc clarification.
Optimize for the trivial case.
* gst/gstpipeline.c: (gst_pipeline_change_state):
Small cleanups.
* libs/gst/base/gstbasesrc.c: (gst_base_src_loop):
Small documentation cleanup.
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_buffer_alloc):
Don't use silly gst_pad_get_negotiated_caps, GST_PAD_CAPS
is what we need and it avoids a whole lot of redundant
refcount operations.
Original commit message from CVS:
* libs/gst/base/gstbasesink.c: (gst_base_sink_configure_segment),
(gst_base_sink_preroll_object), (gst_base_sink_get_position):
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_sink_eventfunc):
* libs/gst/base/gstcollectpads.c: (gst_collect_pads_event):
Don't randomly and silently reset a segment when the format
changes as this is a bug somewhere upstream. Fixes#330379.
Original commit message from CVS:
* docs/design/part-overview.txt:
Make upsteam/downstream concepts more clear.
Give an example of serialized/non-serialized events.
* docs/design/part-events.txt:
* docs/design/part-streams.txt:
Mention applied_rate.
* docs/design/part-trickmodes.txt:
Mention applied rate, flesh out some more use cases.
* gst/gstevent.c: (gst_event_new_new_segment),
(gst_event_parse_new_segment), (gst_event_new_new_segment_full),
(gst_event_parse_new_segment_full), (gst_event_new_tag),
(gst_event_parse_tag), (gst_event_new_buffer_size),
(gst_event_parse_buffer_size), (gst_event_new_qos),
(gst_event_parse_qos), (gst_event_parse_seek),
(gst_event_new_navigation):
* gst/gstevent.h:
Add applied_rate field to NEWSEGMENT event.
API: gst_event_new_new_segment_full()
API: gst_event_parse_new_segment_full()
* gst/gstsegment.c: (gst_segment_init), (gst_segment_set_seek),
(gst_segment_set_newsegment), (gst_segment_set_newsegment_full),
(gst_segment_to_stream_time), (gst_segment_to_running_time):
* gst/gstsegment.h:
Add applied_rate to GstSegment structure.
Make calculation of stream_time and running_time more correct
wrt rate/applied_rate.
Add some more docs.
API: GstSegment::applied_rate field
API: gst_segment_set_newsegment_full();
* libs/gst/base/gstbasesink.c: (gst_base_sink_configure_segment),
(gst_base_sink_get_sync_times), (gst_base_sink_get_position):
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_sink_eventfunc),
(gst_base_transform_handle_buffer):
Parse and use applied_rate in the GstSegment field.
* tests/check/gst/gstevent.c: (GST_START_TEST):
Add check for applied_rate field.
* tests/check/gst/gstsegment.c: (GST_START_TEST),
(gstsegments_suite):
Add more checks for various GstSegment operations.
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
Original commit message from CVS:
* gst/gstbus.c:
Small documentation clarification about the signal watch.
* libs/gst/base/gstbasesink.c: (gst_base_sink_get_sync_times),
(gst_base_sink_wait_clock), (gst_base_sink_do_sync),
(gst_base_sink_perform_qos), (gst_base_sink_reset_qos),
(gst_base_sink_do_render_stats), (gst_base_sink_render_object),
(gst_base_sink_get_position_last),
(gst_base_sink_get_position_paused), (gst_base_sink_change_state):
Convert and store timestamps in stream time and running time, the
raw timestamps are not usefull, also document this better.
Use different window sizes for good and bad QoS observations so
we react to badness a little quicker.
Keep track of the amount of rendered and dropped buffers.
Send QoS timestamps in running time.
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_sink_eventfunc),
(gst_base_transform_handle_buffer):
Compare QoS timestamps against running time.
Original commit message from CVS:
2006-04-05 Andy Wingo <wingo@pobox.com>
* gst/gstpad.c (gst_pad_set_blocked_async): More debug.
* libs/gst/base/gstbasetransform.c
(gst_base_transform_sink_eventfunc): When resetting our segment on
FLUSH_STOP, also update the flag saying we haven't seen a
newsegment.
Original commit message from CVS:
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_transform_caps),
(gst_base_transform_transform_size),
(gst_base_transform_prepare_output_buffer),
(gst_base_transform_get_unit_size),
(gst_base_transform_buffer_alloc),
(gst_base_transform_handle_buffer),
(gst_base_transform_change_state):
Cleanups, separate normal flow from errors, add sensible
DEBUG lines.
Don't try to renegotiate when allocating an output buffer.
Also copy DISCONT buffer flag when copying a buffer.
Reset the transform after we finish streaming, not during.
Original commit message from CVS:
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_transform_caps):
Make sure caps are writable before passing them to
gst_caps_append().
Original commit message from CVS:
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_change_state): Fix a stupid bug. I was
sure i compiled that.
------------------------------------------------------
Original commit message from CVS:
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_change_state): Make basetransform reusable.
(Closes#331898)
------------------------------------------------------
Original commit message from CVS:
2006-02-07 Andy Wingo <wingo@pobox.com>
* libs/gst/base/gstcollectpads.c (gst_collect_pads_chain): Only
update last_stop if we're in TIME format and the timestamp is
valid.
* libs/gst/base/gstcollectpads.c (gst_collect_pads_event)
* libs/gst/base/gstbasetransform.c (gst_base_transform_eventfunc):
* libs/gst/base/gstbasesink.c (gst_base_sink_configure_segment):
If we get a new newsegment with a different format, adapt
accordingly.
* gst/gstclock.c (gst_clock_set_calibration): Accept a numerator
of 0. Not a problem, really.
Original commit message from CVS:
* gst/gstbuffer.c: (gst_buffer_is_metadata_writable),
(gst_buffer_make_metadata_writable):
* gst/gstbuffer.h:
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_prepare_output_buf):
* plugins/elements/gstcapsfilter.c: (gst_capsfilter_prepare_buf):
* tests/check/gst/gstbuffer.c: (GST_START_TEST), (gst_test_suite):
Replace gst_buffer_(make|is)_metadata_writable patch now
that the release is out.
Original commit message from CVS:
* gst/gstbuffer.c:
* gst/gstbuffer.h:
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_prepare_output_buf):
* plugins/elements/gstcapsfilter.c: (gst_capsfilter_prepare_buf):
* tests/check/gst/gstbuffer.c: (gst_test_suite):
Back out patch until after the release.
Original commit message from CVS:
Reviewed By: Andy Wingo
* gst/gstbuffer.c: (gst_buffer_is_metadata_writable),
(gst_buffer_make_metadata_writable):
* gst/gstbuffer.h:
Add gst_buffer_(is|make)_metadata_writable as analogues of
gst_buffer_(is|make)_writable.
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_prepare_output_buf):
* plugins/elements/gstcapsfilter.c: (gst_capsfilter_prepare_buf):
Use name gst_buffer_(is|make)_metadata_writable functions.
* tests/check/gst/gstbuffer.c: (GST_START_TEST), (gst_test_suite):
Test gst_buffer_(is|make)_metadata_writable
(Closes: #324162)
Original commit message from CVS:
2005-12-05 Andy Wingo <wingo@pobox.com>
patch by: Wim Taymans <wim@fluendo.com>
* libs/gst/base/gstbasetransform.c
(gst_base_transform_prepare_output_buf)
(gst_base_transform_buffer_alloc):
* plugins/elements/gstqueue.c (gst_queue_bufferalloc): Call
alloc_buffer_and_set_caps.
* gst/gstpad.c (gst_pad_alloc_buffer): Changed to not call
set_caps on the source pad.
(gst_pad_alloc_buffer_and_set_caps): New function, does what
alloc_buffer used to do. Fixes#322874.
* docs/gst/gstreamer-sections.txt:
* docs/design/part-negotiation.txt:
* docs/pwg/advanced-negotiation.xml: Update for the alloc_buffer
changes.
Original commit message from CVS:
* gst/base/gstbasetransform.c: (gst_base_transform_buffer_alloc):
Treat a pad alloc with new caps the same as if we were not
negotiated, in order to allow a changing upstream output
to produce a new format of data.
Original commit message from CVS:
* gst/base/gstbasetransform.c: (gst_base_transform_class_init),
(gst_base_transform_event), (gst_base_transform_eventfunc):
The event virtual method is now properly implemented, with a default
handler
Sub classes should call the parent_class event method. They should
return FALSE if they had a problem handling the given event, or don't
want GstBaseTransform to send that even downstream
* gst/elements/gstidentity.c: (gst_identity_class_init),
(gst_identity_init), (gst_identity_event),
(gst_identity_transform_ip), (gst_identity_set_property),
(gst_identity_get_property):
* gst/elements/gstidentity.h:
Added the single-segment boolean property.
If set to TRUE, it will output a single segment of data, starting from
0, will eat up all incoming newsegment, and modify the timestamp of the
buffers accordingly
Original commit message from CVS:
2005-11-22 Andy Wingo <wingo@pobox.com>
* gst/gstevent.h (gst_event_new_new_segment)
(gst_event_parse_new_segment, gst_event_new_buffer_size)
(gst_event_parse_buffer_size, gst_ghost_pad_new_no_target):
Renamed from *_newsegment, *_buffersize, *_notarget.
* scripts/update-funcnames: New script, performs the changes
listed above.
Original commit message from CVS:
2005-11-21 Andy Wingo <wingo@pobox.com>
* check/gst/gstevent.c (create_custom_events): Check that
FLUSH_STOP is serialized.
* check/elements/identity.c (event_func):
* check/elements/fakesrc.c (event_func): No stream lock, the core
takes it.
* gst/base/gstbasetransform.c (gst_base_transform_event): No more
stream lock taking, yay.
* gst/gstevent.h (GST_EVENT_FLUSH_STOP): Marked as serialized to
ensure that core takes the stream lock.
* gst/base/gstbasesrc.c (gst_base_src_do_seek): Update for stream
lock name change.
* gst/base/gstbasesink.c (gst_base_sink_event): No need to take
the stream lock for EOS, NEWSEGMENT, or FLUSH_STOP, the core does
it already. For the flush start we do take it though so we get the
right preroll state change messages.
* gst/gstqueue.c (gst_queue_sink_activate_push): No need to take
the stream lock here, the core does it for us.
* gst/gstpad.h (GST_PAD_GET_STREAM_LOCK): Renamed from
GST_STREAM_GET_LOCK.
(GST_PAD_STREAM_LOCK, GST_PAD_STREAM_TRYLOCK)
(GST_PAD_STREAM_UNLOCK, GST_PAD_STREAM_UNLOCK_FULL)
(GST_PAD_STREAM_LOCK_FULL): Renamed from GST_STREAM_*.
(GST_PAD_GET_PREROLL_LOCK): Renamed from GST_PREROLL_GET_LOCK.
(GST_PAD_PREROLL_LOCK, GST_PAD_PREROLL_TRYLOCK)
(GST_PAD_PREROLL_UNLOCK): Renamed from GST_PREROLL_*.
* gst/gstpad.c: Update for stream lock name change.
* gst/base/gstbasesink.c: Update for preroll lock name change.
Original commit message from CVS:
2005-11-21 Andy Wingo <wingo@pobox.com>
* *.h:
* *.c: Ran scripts/update-macros. Oh yes.
* gst/gstobject.h (GST_OBJECT_GET_LOCK, GST_OBJECT_LOCK)
(GST_OBJECT_TRYLOCK, GST_OBJECT_UNLOCK): Renamed from
GST_GET_LOCK, etc.
* scripts/update-macros: New script. Run it on your files to
change GST_LOCK to GST_OBJECT_LOCK, and the same for UNLOCK as
well.
Original commit message from CVS:
* gst/base/gstbasetransform.c:
(gst_base_transform_prepare_output_buf),
(gst_base_transform_event):
Check if the caps are NULL, this can happen if the element
is shutting down and the pad caps are set to NULL.
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.
Original commit message from CVS:
2005-11-14 Julien MOUTTE <julien@moutte.net>
* gst/base/gstbasetransform.c:
(gst_base_transform_prepare_output_buf):
Ref the source pad caps while we need them.
Fixes (#321386)
Original commit message from CVS:
* gst/base/gstbasetransform.c:
(gst_base_transform_prepare_output_buf),
(gst_base_transform_handle_buffer):
Small cleanups.
If we're processing a buffer and need to allocate an output
buffer, we cannot accept a format change. If we did get a
format change, we have to alloc a buffer ourselves of the
right size.
Original commit message from CVS:
* gst/base/gstbasetransform.c: (gst_base_transform_transform_caps):
* gst/gstcaps.c: (gst_caps_intersect):
Don't call gst_caps_do_simplify - it doesn't respect order of caps
and it's not needed.
Original commit message from CVS:
* gst/base/gstbasetransform.c: (gst_base_transform_event):
Hold STREAM_LOCK while pushing newsegment or tag events as well.
Original commit message from CVS:
* gst/base/gstbasetransform.c: (gst_base_transform_class_init),
(gst_base_transform_init):
Don't leak class.
* gst/gstqueue.c: (gst_queue_handle_sink_event), (gst_queue_loop):
An EOS event marks the queue as completely filled.
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.
Original commit message from CVS:
* check/gst/gstevent.c: (GST_START_TEST):
* gst/base/gstbasesink.c: (gst_base_sink_handle_object),
(gst_base_sink_change_state):
* gst/base/gstbasesrc.c: (gst_base_src_default_newsegment):
* gst/base/gstbasetransform.c: (gst_base_transform_event):
* gst/elements/gstfilesink.c: (gst_file_sink_event):
* gst/gstevent.c: (gst_event_new_newsegment),
(gst_event_parse_newsegment):
* gst/gstevent.h:
Added extra flag to newsegment for future API freeze.
Updated check and base elements.
Original commit message from CVS:
* configure.ac:
if we don't have glib, fail before testing 2.8
* gst/base/gstbasetransform.c: (gst_base_transform_change_state):
fix a leak, should fix plugins-base testsuite
Original commit message from CVS:
* gst/base/gstbasetransform.c: (gst_base_transform_transform_size):
* gst/gstutils.c: (gst_util_set_value_from_string),
(gst_util_set_object_arg):
Don't put functional code in g_return_if_fail() or
g_return_val_if_fail() statements, otherwise things will
break when G_DISABLE_CHECKS is defined during compilation.
Original commit message from CVS:
* gst/base/gstbasetransform.c: (gst_base_transform_class_init),
(gst_base_transform_prepare_output_buf),
(gst_base_transform_handle_buffer):
* gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip),
(gst_capsfilter_prepare_buf):
Remove the requirement for sub-classes to call the parent
implementation of prepare_output_buffer with a wrapper function.
* gst/gsttaglist.h:
* gst/gsttagsetter.h:
Fix #define wrapper
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.
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.
Original commit message from CVS:
2005-09-02 Andy Wingo <wingo@pobox.com>
* gst/gstelement.h (GstState): Renamed from GstElementState,
changed to be a normal enum instead of flags.
(GstStateChangeReturn): Renamed from GstElementStateReturn, names
munged to be GST_STATE_CHANGE_*.
(GST_STATE_CHANGE): Renamed from GST_STATE_TRANSITION, updated to
work with the new state representation.
(GstStateChange): New enumeration of possible state transitions.
Replaces GST_STATE_FOO_TO_BAR with GST_STATE_CHANGE_FOO_TO_BAR.
(GstElementClass::change_state): Pass the GstStateChange along as
an argument. Helps language bindings, so they don't have to use
tricky lock-needing macros like GST_STATE_CHANGE ().
* scripts/update-states (file): New script. Run it on a file to
update it for state naming and API changes. Updates files in
place.
* All files updated for the new API.
Original commit message from CVS:
* gst/base/gstbasetransform.c: (gst_base_transform_setcaps),
(gst_base_transform_handle_buffer):
Passthrough elements don't need the caps as they don't care.
Original commit message from CVS:
* gst/base/gstbasetransform.c: (gst_base_transform_setcaps),
(gst_base_transform_handle_buffer), (gst_base_transform_chain):
Don't leak refcounts on buffers.
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.
Original commit message from CVS:
* gst/base/gstbasetransform.c: (gst_base_transform_handle_buffer):
passthrough elements can even do inplace on non writable
buffers (as they don't touch them).
Original commit message from CVS:
* gst/base/gstadapter.c: (gst_adapter_flush):
Flushing out 0 bytes is ok for this function.
* gst/base/gstbasesink.c: (gst_base_sink_handle_object):
no newsegment gives a warning and sets the start/stop to
invalid.
* gst/base/gstbasetransform.c: (gst_base_transform_change_state),
(gst_base_transform_set_passthrough):
Some debug info.
* gst/gstminiobject.c: (gst_mini_object_ref):
Check refcount here too.
* gst/gstpad.c: (gst_pad_init):
Pads are initially flushing and refusing data.
* gst/gstutils.c: (gst_element_link_pads_filtered):
When adding a capsfilter element make sure it has the
same state as the parent bin.
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
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.
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
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.
Original commit message from CVS:
* gst/base/gstbasetransform.c: (gst_base_transform_transform_caps),
(gst_base_transform_handle_buffer):
Also call the transform function if we have ANY caps.
* gst/gstpipeline.c: (gst_pipeline_set_new_stream_time):
Fix debug info.
Original commit message from CVS:
2005-08-17 Andy Wingo <wingo@pobox.com>
* gst/base/gstbasetransform.c: Debug changes.
* gst/gstutils.h:
* gst/gstutils.c (gst_bin_watch_for_state_change): Add function to
ensure bins post state change messages. A bit of a hack but I can't
think of a way to avoid it.
* check/gst/gstbin.c (test_watch_for_state_change): Added test.
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...
Original commit message from CVS:
2005-08-01 Jan Schmidt <thaytan@mad.scientist.com>
* gst/base/gstbasetransform.c: (gst_base_transform_init),
(gst_base_transform_handle_buffer),
(gst_base_transform_change_state):
Handle PAUSED->READY->PAUSED transition after negotiation
occurred already.
* gst/gstmessage.c: (gst_message_init):
Extra piece of debug for new messages.
Original commit message from CVS:
* docs/design/part-dynamic.txt:
* docs/design/part-events.txt:
* docs/design/part-seeking.txt:
Some more docs in the works.
* gst/base/gstbasetransform.c: (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_event),
(gst_base_transform_handle_buffer),
(gst_base_transform_sink_activate_push),
(gst_base_transform_src_activate_pull),
(gst_base_transform_set_passthrough),
(gst_base_transform_is_passthrough):
Refcounting fixes.
* gst/gstbus.c: (gst_bus_source_dispatch), (gst_bus_poll):
Cleanups.
* gst/gstevent.c: (gst_event_finalize):
Set SRC to NULL.
* gst/gstutils.c: (gst_element_unlink),
(gst_pad_get_parent_element), (gst_pad_proxy_getcaps),
(gst_pad_proxy_setcaps):
* gst/gstutils.h:
Add _get_parent_element() to get a pads parent as an element.
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.
Original commit message from CVS:
* gst/base/gstbasetransform.c: (gst_base_transform_setcaps):
Added more debug info in the negotiate process.
* gst/gstmessage.h:
Prepare for segment playback.
* gst/gstpad.c: (gst_pad_accept_caps), (gst_pad_set_caps):
Better debugging.
* gst/gstutils.c:
Some more docs.
* tools/gst-launch.c: (main):
NULL pipeline on errors.
Original commit message from CVS:
2005-07-05 Andy Wingo <wingo@pobox.com>
* gst/base/gstbasetransform.c (gst_base_transform_setcaps):
Default to returning TRUE for the case when tranform_caps returns
a fixed caps, like for identity or volume.
Original commit message from CVS:
2005-07-05 Andy Wingo <wingo@pobox.com>
* check/gst/gstbus.c (pound_bus_with_messages):
* check/gst/gstmessage.c (START_TEST):
* check/pipelines/simple_launch_lines.c (got_handoff): Application
message API change.
* gst/base/gstbasetransform.c (gst_base_transform_setcaps): More
logic weaks here: always run transform_caps, trying passthrough
operation only if the original caps intersects with the transform.
* gst/gstpad.c (gst_pad_link_check_compatible_unlocked): Debug
source and sink caps.
* gst/base/gstbasetransform.c (gst_base_transform_getcaps):
Intersect the peer caps with the pad template before going into
transform_caps.
(gst_base_transform_transform_caps): More debugging.
* gst/gstmessage.h (gst_message_new_application): Take a GstObject
src argument.
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.
Original commit message from CVS:
2005-06-27 Andy Wingo <wingo@pobox.com>
* gst/base/gsttypefindhelper.c (gst_type_find_helper): Unref any
remaining buffer.
* gst/gsttrace.c (gst_alloc_trace_list_sorted): New helper,
returns a sorted copy of the trace list.
(gst_alloc_trace_print_live): New API, only prints traces with
live objects. Sort the list.
(gst_alloc_trace_print_all): Sort the list.
(gst_alloc_trace_print): Align columns.
* gst/elements/gstttypefindelement.c:
* gst/elements/gsttee.c:
* gst/base/gstbasesrc.c:
* gst/base/gstbasesink.c:
* gst/base/gstbasetransform.c:
* gst/gstqueue.c: Adapt for pad activation changes.
* gst/gstpipeline.c (gst_pipeline_init): Unref after parenting
sched.
(gst_pipeline_dispose): Drop ref on sched.
* gst/gstpad.c (gst_pad_init): Set the default activate func.
(gst_pad_activate_default): Push mode by default.
(pre_activate_switch, post_activate_switch): New stubs, things to
do before and after switching activation modes on pads.
(gst_pad_set_active): Take a boolean and not a mode, dispatch to
the pad's activate function to choose which mode to activate.
Shortcut on deactivation and call the right function directly.
(gst_pad_activate_pull): New API, (de)activates a pad in pull
mode.
(gst_pad_activate_push): New API, same for push mode.
(gst_pad_set_activate_function)
(gst_pad_set_activatepull_function)
(gst_pad_set_activatepush_function): Setters for new API.
* gst/gstminiobject.c (gst_mini_object_new, gst_mini_object_free):
Trace all miniobjects.
(gst_mini_object_make_writable): Unref the arg if we copy, like
gst_caps_make_writable.
* gst/gstmessage.c (_gst_message_initialize): No trace init.
* gst/gstghostpad.c (gst_proxy_pad_do_activate)
(gst_proxy_pad_do_activatepull, gst_proxy_pad_do_activatepush):
Adapt for new pad API.
* gst/gstevent.c (_gst_event_initialize): Don't initialize trace.
* gst/gstelement.h:
* gst/gstelement.c (gst_element_iterate_src_pads)
(gst_element_iterate_sink_pads): New API functions.
* gst/gstelement.c (iterator_fold_with_resync): New utility,
should fold into gstiterator.c in some form.
(gst_element_pads_activate): Simplified via use of fold and
delegation of decisions to gstpad->activate.
* gst/gstbus.c (gst_bus_source_finalize): Set the bus to NULL,
help in debugging.
* gst/gstbuffer.c (_gst_buffer_initialize): Ref the buffer type
class once in init, like gstmessage. Didn't run into this issue
but it seems correct. Don't initialize a trace, gstminiobject does
that.
* check/pipelines/simple_launch_lines.c (test_stop_from_app): New
test, runs fakesrc ! fakesink, stopping on ::handoff via a message
to the bus.
(assert_live_count): New util function, uses alloc traces to check
cleanup.
* check/gst/gstghostpad.c (test_ghost_pads): More refcount checks.
To be modified when unlink drops the internal pad.
Original commit message from CVS:
2005-05-10 Andy Wingo <wingo@pobox.com>
* gst/elements/gstfakesink.c (gst_fakesink_render): Er, emit with
*all* the arguments.
* gst/base/gstbasetransform.c (gst_base_transform_event): Grab the
stream lock if it's a FLUSH_DONE; normal flushes don't get the
lock (according to the docs -- if this is wrong change the docs).
* gst/gstpipeline.c (gst_pipeline_change_state): Set the bus to
flush messages in the NULL state.
* gst/gstbus.c (gst_bus_post): If a bus is flushing, unref the
message immediately and return.
(gst_bus_set_flushing): New function. If a bus is flushing, it
flushes out any queued messages and immediately unrefs new
messages. This is so when an element goes to NULL, all of the
unhandled messages coming from it can be freed, and their
references to the element dropped. In other words: message source
ref considered harmful :P
* gst/gstbin.c (gst_bin_change_state): Unref peer element when
we're finished with it.
* gst/gstmessage.c (gst_message_new_state_changed):
Original commit message from CVS:
2005-05-09 Andy Wingo <wingo@pobox.com>
* gst/base/gstbasetransform.c (gst_base_transform_proxy_getcaps):
Intersect the peer's caps with our caps.
Original commit message from CVS:
* gst/base/gstbasetransform.c: (gst_base_transform_proxy_getcaps):
* gst/elements/gstcapsfilter.c: (gst_capsfilter_getcaps):
* gst/gstpad.c: (gst_pad_peer_get_caps):
* gst/gstqueue.c: (gst_queue_init), (gst_queue_getcaps),
(gst_queue_bufferalloc), (gst_queue_handle_sink_event),
(gst_queue_src_activate), (gst_queue_change_state):
* gst/gstqueue.h:
* gst/gstutils.c: (gst_element_get_compatible_pad_template),
(intersect_caps_func):
Fix gst_pad_peer_get_caps(), make it return NULL if no peer.
Always take QUEUE_LOCK after STREAM_LOCK or we might deadlock.
Some fixes for the peer_get_caps() change.
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.
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.
