Add first implementation of arbitrary buffer metadata. We use a simple linked
linked of slice allocated metadata chunks. Future implementations could use
something more performant.
Add get, remove, iterate methods to handle the metadata.
Add an owner private field where the owner of a buffer can store some extra
information. We can use this to implement most of the subclassing that happens
now. Later this will be removed and replaced by arbitrary buffer metadata.
This was required to add a new MEDIA4 buffer flag for indicating
progressive/mixed telecine video buffers. There is no space for
additional flags in GstBuffer, so steal one from GstMiniObject.
https://bugzilla.gnome.org/show_bug.cgi?id=642671
Make code including GStreamer headers compile with -Wcast-qual by
maintaining const-ness when casting. Also fix function signature of
gst_byte_writer_set_pos(): the byte writer should not be marked as
const.
https://bugzilla.gnome.org/show_bug.cgi?id=627910
Move the parent buffer pointer into the GstBuffer struct so that we can
remove the subbuffer class and type. This is interesting because it allows us to
more naturally implement methods to get the real type and parent
of a subbuffer (See #545501).
It should also be slightly faster because there is no extra object hierarchy to
initialize and free.
unref and copy functions are sometimes used as function
pointers for example in the case of g_hash_table_new_full
as a GDestroyNotify function.
Currently GstBuffer, GstEvent, GstMessage and GstQuery
define their respective unref and copy functions as
macros, making use of gst_mini_object_unref/copy.
This approach works very well for most cases, except
for some automatically generated bindings (currently Vala),
where the memory management semantics are defined
declaratively.
The possible solutions would be to either convert all
the macros into static inline function, or change the
signature of gst_mini_object_unref to take a void*
instead of a GstMiniObject*.
Fixes bug #572480.
Original commit message from CVS:
2008-10-08 Andy Wingo <wingo@pobox.com>
* gst/gstghostpad.c (gst_ghost_pad_construct): If we got a
template via g_object_get(), be sure to unref it.
* gst/gstbuffer.h (GST_BUFFER_FREE_FUNC): Fix incorrect doc.
Original commit message from CVS:
* gst/gstbuffer.h: (GST_BUFFER_FREE_FUNC):
* gst/gstghostpad.c: (gst_ghost_pad_construct):
Add 'Since' bits to gtk-doc chunks for new API.
Original commit message from CVS:
2008-10-06 Andy Wingo <wingo@pobox.com>
* gst/gstbuffer.h (GST_BUFFER_FREE_FUNC): New API, a free function
that will be called on the malloc_data to free it. Basically a way
to avoid subclassing when all you need is a different free
function, i.e. free() instead of g_free().
* gst/gstbuffer.c (gst_buffer_finalize): Free malloc_data via
calling the free function.
(gst_buffer_init): Initialize the free function to g_free.
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/gstbuffer.h:
Define GST_BUFFER_FLAG_GAP more strictly to enable optimizations based
on it. Fix docs for GST_BUFFER_MALLOCDATA and GstBuffer.malloc_data.
Original commit message from CVS:
Patch by: <arenevier at fdn dot fr>
* gst/gstbuffer.h:
Remove comma from last element in enum to avoid compile errors when
using -pendantic. Fixes#464366.
Original commit message from CVS:
* docs/gst/gstreamer-sections.txt:
* gst/gstbuffer.c: (gst_buffer_try_new_and_alloc):
* gst/gstbuffer.h:
* tests/check/gst/gstbuffer.c: (GST_START_TEST),
(gst_buffer_suite):
API: add gst_buffer_try_new_and_alloc() plus unit test (#431940).
Original commit message from CVS:
* gst/gstbuffer.h:
Add an explicit cast to GstBuffer** to keep old code that added an
explicit cast to GstMiniObject** for gst_mini_object_replace()
compiling without warning.
Original commit message from CVS:
* gst/gstbuffer.h:
* gst/gstevent.h:
* gst/gstmessage.h:
Make gtk-doc generate docs for our inlined gst_buffer_ref(),
gst_event_ref() and gst_message_ref() functions again
(ugly hack, please do fix if there's a better way besides
overrides.txt, which doesn't seem to work).
Original commit message from CVS:
* gst/gstbuffer.h:
* gst/gstminiobject.c:
Add note about refcounting and miniobject/buffer writeability
to docs. Fixes#340604
* gst/gstelementfactory.h:
Added some explanation about @klass.
Original commit message from CVS:
* gst/gstbuffer.h:
* gst/gstevent.h:
* gst/gstmessage.h:
gst_[buffer|event|message]_ref() macros are replaced by a static
inline functions because gcc-4.1 will about if the return value
isn't used.
* tests/check/gst/gstevent.c: (event_probe):
gst_event_ref now has to be given a GstEvent* , fix check accordingly.
Original commit message from CVS:
* gst/gstbuffer.h:
Documentation fix.
* gst/gstpad.c: (gst_pad_init), (gst_pad_acceptcaps_default),
(gst_pad_accept_caps), (gst_pad_configure_sink),
(gst_pad_configure_src), (gst_pad_chain), (gst_pad_push):
Make the default acceptcaps behaviour be to check the requested
caps against the gst_pad_get_caps output.
Ensure that gst_pad_accept_caps is used to check caps when a pad
doesn't have a setcaps function, so that pads automatically refuse
caps that they don't allow in their pad template. (Fixes#332986)
When a buffer with attached caps is pushed, ensure that the source
pad receives those caps even if the element didn't call
gst_pad_set_caps first.
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:
* check/gst/gstghostpad.c: (GST_START_TEST), (gst_ghost_pad_suite):
Added check for bug #317341
* gst/gstbuffer.c:
* gst/gstbuffer.h:
Some more spiffifying.
* gst/gstghostpad.c: (gst_ghost_pad_do_link):
Call peer linkfunction if we are a source pad. Totally fixes
#317341
* gst/gstpad.c:
Update docs, source pads should call the peer linkfunction
so they can atomically perform the pad link.
Original commit message from CVS:
* gst/gstbuffer.c: (gst_subbuffer_finalize),
(gst_buffer_create_sub), (gst_buffer_is_span_fast):
* gst/gstbuffer.h:
Avoid typechecking in places where not needed.
Added accessor for malloc_data.
Original commit message from CVS:
First THREADED backport attempt, focusing on adding locks and
making sure the API is threadsafe. Needs more work. More docs
follow this week.
Original commit message from CVS:
* gst/gstbuffer.c: (gst_buffer_default_copy):
* gst/gstbuffer.h:
Added Comment to a flag.
copy relevant flags in _buffer_copy.
Original commit message from CVS:
* gst/gstbuffer.c: (_gst_buffer_initialize), (gst_buffer_get_type),
(gst_buffer_free_chunk): Added gst_buffer_get_type() and changed
to using it.
* gst/gstbuffer.h: Changed GST_BUFFER_TYPE to gst_buffer_get_type()
* gst/gstcaps.c: (gst_caps_is_fixed_foreach): Buffer is a fixed type
* gst/gstpad.c: (_gst_pad_default_fixate_foreach): same
* gst/gststructure.c: (gst_structure_set_valist),
(gst_structure_from_abbr), (gst_structure_to_abbr): Add vararg
support for buffers.
* gst/gsttag.c: (gst_tag_register): Constify a prototype that was
intended to be const.
* gst/gsttag.h: same
* gst/gstvalue.c: (gst_value_serialize_buffer),
(gst_value_deserialize_buffer), (_gst_value_initialize): Add code
to (de)serialize buffers.
* testsuite/caps/Makefile.am: Add a bit of buffer testing
* testsuite/caps/string-conversions.c: (main):
* testsuite/caps/value_serialize.c: add new test
Original commit message from CVS:
* gst/gstbuffer.h:
remove macro that wouldn't work anymore because struct member has
been removed.
* gst/schedulers/entryscheduler.c: (schedule_forward):
fix segfault for unconnected pads
Original commit message from CVS:
* gst/gstbuffer.c: (gst_buffer_join): Add function gst_buffer_join()
to eventually deprecate gst_buffer_merge(). (bug: #136408)
* gst/gstbuffer.h:
Original commit message from CVS:
2004-02-27 Benjamin Otte <otte@gnome.org>
* gst/gstbuffer.h:
remove gst_buffer_free, use gst_data_unref
* gst/gstdata.c: (gst_data_get_type):
use refcounting in GstData GBoxed registration
* gst/gstdata.h:
remove gst_data_free, use gst_data_unref
Original commit message from CVS:
2004-02-03 Benjamin Otte <in7y118@public.uni-hamburg.de>
* gst/elements/gstfilesrc.c: (gst_filesrc_init),
(gst_filesrc_dispose), (gst_filesrc_free_parent_mmap),
(gst_filesrc_map_region), (gst_filesrc_get_mmap):
* gst/elements/gstfilesrc.h:
don't ref the filesrc when creating mmaped buffers. Don't keep a
list of not-yet-destroyed buffers.
* gst/gstbuffer.h:
Deprecated BST_BUFFER_FREE_FUNC and GST_BUFFER_COPY_FUNC
Original commit message from CVS:
* gst/elements/gstfilesrc.c: (gst_filesrc_free_parent_mmap),
(gst_filesrc_map_region):
* gst/gstbuffer.c: (_gst_buffer_initialize),
(_gst_buffer_sub_free), (gst_buffer_default_copy),
(gst_buffer_new), (gst_buffer_create_sub),
(gst_buffer_is_span_fast), (gst_buffer_span):
* gst/gstbuffer.h:
Change GstBuffer private structure element names. (all files)
* gst/gstqueue.c: (gst_queue_init), (gst_queue_getcaps),
(gst_queue_link):
* gst/gstqueue.h:
Implement getcaps/pad_link functions that handle the case where
there are data in the queue.
Original commit message from CVS:
merge in tagging
Includes:
- gsttag.[ch] - The definition of GstTagList and tag registering/querying
- gsttaginterface.[ch] - Interface for elements that can handle setting of tags
- updates and merges to gststructure.[ch] and gstvalue.[ch]
- testsuite/tags - some tests for tagging
- bugfixes
- updates to make make distcheck work
- updates the version number to 0.7.2.1
Does not include:
- including tagging stuff in docs
- extensive tests
Original commit message from CVS:
- First attempt at implementing #113180, this one also removes
automatic (byte) offset calculations in the subbuffer code and moves
that logic to bytestream and filesrc. It will also update the offset
and duration fields in some special cases.
Original commit message from CVS:
API change: rename (currently unused function) gst_(data|buffer)_needs_copy_on_write to gst_(data|buffer)_is_readonly - we don't want to confuse even core developers
Original commit message from CVS:
- added macros GST_CLOCK_TIME_IS_VALID and GST_BUFFE_TIMESTAMP_IS_VALID
- use macros in some places
- buffer's timestamp field is a GstClockTime, not a guint64 - this is currently the same, but be sure to only use GstClockTime when working with timestamps in the future
Original commit message from CVS:
2003-03-29 Martin Schulze <MHL.Schulze@t-online.de>
* gst/gstelementfactory.c: Add "g_free (dp->license)" in
gst_element_details_free().
* gst/gstevent.[ch]: Add function gst_event_get_type() to
support c++ language binding. Make macros gst_event_ref[_by_count]
return a GstEvent* instead of a GstData*.
* gst/gstbuffer.[ch]: Add functions gst_buffer[_pool]_get_type()
to support c++ language binding.
Original commit message from CVS:
- Cleanups
- Added padding to structs
- fixed typechecking/casts
- reduced casts
- implemented remove_element in gstbin
- implemented set index on bin
Original commit message from CVS:
- Documentation updates, renamed some _ methods because gtkdoc didn't
want to generate docs for them.
- Add some more events for future use.
Original commit message from CVS:
- Removed bufferpool code and move that to gstbuffer.c
- implemented refcounting on GstData
- implemented new buffer code based on Company's work in the EVENTS2 branch
- added boxed types for GstData/GstEvent/GstBuffer/GstBufferPool
- added refcounting to bufferpools and events
- use lockfree allocation for buffers
- simplified the clock, use lockfree allocation
- use GQueue in GstQueue for faster access to the tail element
- update core plugins to the new event API
Original commit message from CVS:
- Removed deprecated buffer flags.
- removed gst_element_signal_eos, replaced with gst_element_set_eos
to set the object to PAUSED, signal an eos event etc..
- small updates to documentation
- repair some plugins
Original commit message from CVS:
This is an attempt at not segfaulting on errors but reporting some
usefull info instead.
- bin changes so errors can propagate.
- changed the _FAST macros to _CAST because that is what they do.
- removed all references to cothreads out of the core, they are
really a scheduler issue, handler with a sched_private gpointer.
- added a live buffer count, for debugging buffer leaks.
- added error checking in gst_scheduler_state_transition this solves the
"out of cothreads" problem.
- GST_ELEMENT_NO_ENTRY == GST_ELEMENT_INFINITE_LOOP
- added 2 private element flasg for use by the scheduler
(_COTHREAD_STOPPING) is now
- added scheduler entry points:
- _yield : to create possible scheduling points.
- _interrupt: to stop execution of an element.
- _error: to signal en error condition to the scheduler.
- improved error messages for pads.
- signal gst_element_error where appropriate.
- added the a new bin to the parent before entering it so one can reference
its children.
- queue memleak fixes on dispose.
- added possible deadlock detection in queue (turned off be default)
- GstBasicScheduler is a real class of its own now, hiding its internal
variables.
- GST_ELEMENT_IS_COTHREAD_STOPPING is gone. either call explicit _yield
operations, or make a sane loop.
- Better state change handling in filesrc. Better error reporting/recovery
too.
- updated core plugins.
- detect non decoupled elements on scheduler boundries and error.
Original commit message from CVS:
API docs.
revived _buffer_ref_by_count
fast types for scheduler and bin.
error checking on plugin features;
removed some prototypes that were not implemented (gst_pipeline_iterate
comes to mind)
remove gst_pad_event until we know what it's supposed to do.
remove sinesrc, it wasn't compiles anymore, so...
updates to various elements that used the old event API.
Original commit message from CVS:
1. Add more warnings for the gst core only. Various trival fixes
to quiet the warnings.
2. Fix GstBufferCopyFunc prototype.
3. Re-apply the reverted type!=0 assertion in gst_elementfactory_new.
Original commit message from CVS:
gstinfo.[ch], cothreads.c: added initial support for -finstrument_functions
gstbin.c: removed a reference to config.h
gstbuffer.[ch]: added gst_buffer_is_span_fast(), used it in gst_buffer_span
elements/gstfilesrc.c: initial work fleshing out the event handling code
everywhere else: wrapped XML stuff in #ifndef's
Original commit message from CVS:
- changed timestamps to gint64 (*signed* 64-bit)
- updated buf->offset handling to deal with the -1 (0xffffffff) case
- added gst_buffer_span() and gst_buffer_merge (see -devel for details)
Original commit message from CVS:
- commented out remainder of Meta stuff
- enhanced mem_chunk allocation to round up to nearest 32 bytes
this helps ensure that GstBuffers are more likely to be on cache-lines
- added free() and copy() function pointers to GstBuffer
- added code in _destroy and _copy to use above routines if !NULL
- fixed up _copy code to suck less
Original commit message from CVS:
Fixed buffer flag handling
gstplay used old flag handling
updated some plugins for the new objects/error handling
Fixed a serious buffer error in gst_buffer_append
Original commit message from CVS:
Fixed a serious bug in gst_props_new: properties with a 0 value causes
a segfault
Fixed a possible bug in gstautoplug when one of the constructed paths
was empty
Commented out a too liberal assert in gstscheduler.c
Added GST_BUFFER_DISCONTINUOUS
tried to fix asyndisksrc
Original commit message from CVS:
some editor changes= loading of save pipelines (not working)
added include in gstdebug.h for getpid
property loading implemented
GstXML can now be queried for the toplevel elements.
Original commit message from CVS:
WARNING: Don't grab this updated unless you're really, REALLY sure.
WARNING: Wait for the next one.
Whole lotta changes here, including a few random bits:
examples/*/Makefile: updated to use `libtool gcc`, not just `gcc`
gst/
gstbuffer.h: updated to new flag style
gst.c, gstdebug.h: added new debugging for function ptrs
gstpipeline.c: set type of parent_class to the class, not the object
gstthread.c: ditto
plugins/
cdparanoia/cdparanoia.c: added an argument type, updated some defaults
cobin/spindentity.c: updated to new do/while loopfunction style
mp3encode/lame/gstlame.c: argument types, whole lotta lame options
tests/: various changes
Now, for the big changes: Once again, the scheduling system has changed.
And once again, it broke a whole bunch of things. The gist of the change
is that there is now a function pointer for gst_pad_push and gst_pad_pull,
instead of a hard-wired function. Well, currently they are functions, but
that's for debugging purposes only, they just call the function pointer
after spewing lots of DEBUG().
This changed the GstPad structure a bit, and the GstPad API as well.
Where elements used to provide chain() and pull() functions, they provide
chain() and get() functions. gst_pad_set_pull[region]_function has been
changed to get_pad_set_get[region]_function. This means all the elements
out there that used to have pull functions need to be updated. The calls
to that function have been changed in the normal elements, but the names
of the functions passed is still _pull[region](), which is an aesthetic
issue more than anything.
As for what doesn't work yet, just about anything dealing with Connections
is hosed, meaning threaded stuff won't work. This will be fixed about 12
hours from now, after I've slept, etc. The simplefake.c test works in
both cothreaded and chained cases, but not much else will work due to the
Connection problem. Needless to say, don't grab this unless you *need*
these features *now*, else wait to update this stuff until tomorrow.
I'm going to sleep now.
Original commit message from CVS:
Header cleanup: try to include as little as possible; this will probably
speed up compilation a bit.
changed the .c files to use #include "..."
Fix for the 'plugins are loaded twice' bug.
Fix 22186: GstObject flags are now used everywhere. Added *_FLAG_LAST so
elements do not use the same flags. Added some padding in the flag enum
for future expansion.
Original commit message from CVS:
This is the audio/video sync release.
Changed the mpegvideoparser to parse complete pictures. Added the PTS
timestamps to the pictures.
Added PTS timestamps to the MPEG audio frames.
Made the clock a littlebit better.
Gstplay now uses two more threads one for video, one for audio playback.
Added the first QoS callbacks for the pads.
hopefully fix an mmx compilation problem.
Original commit message from CVS:
Added seeking to some of the plugins.
some MMX speedups in the MPEG decoders.
Better YUV to MMX conversion
implemented seeking to gstplay.
Original commit message from CVS:
Fixed the mpeg2 encoder. Added MMX optimisations for motion estimation.
Added another mpeg1 encoder.
Added Two filters: smooth and median (a median cut filter)
Made the queue pull buffers.
Original commit message from CVS:
Documentation updates. All standard library objects and standard
elements are documented. Modified some of the elements to more
accuratly report about their arguments so the documentation builds
more reasonable output.
Added aviencoder and jpegencoder elements (not working yet)
Original commit message from CVS:
Various cleanups. Moved the overlay code to a specialized widget.
One error I cannot seem to fix: switching desktops does not disable the
overlay.
