Commit graph

51 commits

Author SHA1 Message Date
Thomas Vander Stichele
2dd1598c56 whitespace fixes
Original commit message from CVS:
whitespace fixes
2005-10-15 15:30:24 +00:00
Andy Wingo
5111420fa2 gst/base/gstbasesrc.c (gst_base_src_unlock): Comment a bit in lieu of real docs...
Original commit message from CVS:
2005-09-28  Andy Wingo  <wingo@pobox.com>

* gst/base/gstbasesrc.c (gst_base_src_unlock): Comment a bit in
lieu of real docs...

* gst/elements/gstfdsrc.c: Cleaned up a bit.
2005-09-28 13:05:12 +00:00
Tim-Philipp Müller
99d855fdc9 gst/elements/: Make element details static.
Original commit message from CVS:
* gst/elements/gstcapsfilter.c:
* gst/elements/gstfakesink.c:
* gst/elements/gstfakesrc.c:
* gst/elements/gstfdsink.c:
* gst/elements/gstfdsrc.c:
* gst/elements/gstfilesink.c:
* gst/elements/gstfilesrc.c:
* gst/elements/gstidentity.c:
* gst/elements/gsttee.c:
* gst/elements/gsttypefindelement.c:
Make element details static.
2005-09-28 12:52:51 +00:00
Wim Taymans
71491998d5 gst/elements/gstfdsrc.*: Properly implement fdsrc. Removed signal and timeout, better implemented somewhere else.
Original commit message from CVS:
* gst/elements/gstfdsrc.c: (gst_fdsrc_class_init),
(gst_fdsrc_init), (gst_fdsrc_start), (gst_fdsrc_stop),
(gst_fdsrc_unlock), (gst_fdsrc_set_property),
(gst_fdsrc_get_property), (gst_fdsrc_create):
* gst/elements/gstfdsrc.h:
Properly implement fdsrc. Removed signal and timeout,
better implemented somewhere else.
2005-09-21 09:13:32 +00:00
Jan Schmidt
b2e01db401 check/generic/states.c: Add a sleep to ensure elements have a chance to start their pad tasks before shutdown. Reduce...
Original commit message from CVS:
* check/generic/states.c: (GST_START_TEST), (states_suite):
Add a sleep to ensure elements have a chance to start their
pad tasks before shutdown. Reduces racy test results.

* gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create):
Time out the select every now and then to check for shutdown.
2005-09-20 00:27:37 +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
Andy Wingo
e040bb2dbe gst/gstelement.h (GstState): Renamed from GstElementState, changed to be a normal enum instead of flags.
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.
2005-09-02 15:42:00 +00:00
Philippe Kalaf
4b888578a0 gst/elements/gstfdsrc.c gst/elements/gstfdsrc.h gst/elements/gstelements.c gst/elements/Makefile.am
Original commit message from CVS:
2005-07-16 Philippe Khalaf <burger@speedy.org>
* gst/elements/gstfdsrc.c
* gst/elements/gstfdsrc.h
* gst/elements/gstelements.c
* gst/elements/Makefile.am
Ported fdsrc to 0.9.
2005-07-16 15:41:04 +00:00
Andy Wingo
82a5239bfe gst/elements, testsuite: Null if we got it...
Original commit message from CVS:
2005-07-05  Andy Wingo  <wingo@pobox.com>

* gst/elements, testsuite: Null if we got it...
2005-07-05 10:58:21 +00:00
Wim Taymans
9e24b85a9d Remove threadsafe properties. Fix elements because GObject complains when installing a property before declaring a se...
Original commit message from CVS:
Remove threadsafe properties. Fix elements because GObject
complains when installing a property before declaring a
set/get_property handler.
Rearrange gstelement.h file, use STATE macros for state locks.
Free mutexes in the finalize method instead of dispose.
2005-03-08 17:42:29 +00:00
Benjamin Otte
7fb1f1901f gst/: s/gst_pad_new/&_from_template/ register pad templates in the base_init function add static pad template definit...
Original commit message from CVS:
* gst/autoplug/gstspideridentity.c:
(gst_spider_identity_request_new_pad):
* gst/elements/gstaggregator.c: (gst_aggregator_base_init),
(gst_aggregator_init):
* gst/elements/gstfakesink.c: (gst_fakesink_base_init),
(gst_fakesink_init):
* gst/elements/gstfakesrc.c: (gst_fakesrc_base_init),
(gst_fakesrc_init):
* gst/elements/gstfdsink.c: (gst_fdsink_base_init),
(gst_fdsink_init):
* gst/elements/gstfdsrc.c: (gst_fdsrc_base_init), (gst_fdsrc_init):
* gst/elements/gstfilesink.c: (gst_filesink_base_init),
(gst_filesink_init):
* gst/elements/gstfilesrc.c: (gst_filesrc_base_init),
(gst_filesrc_init):
* gst/elements/gstidentity.c: (gst_identity_base_init),
(gst_identity_init):
* gst/elements/gstmultifilesrc.c: (gst_multifilesrc_base_init),
(gst_multifilesrc_init):
* gst/elements/gstpipefilter.c: (gst_pipefilter_base_init),
(gst_pipefilter_init):
* gst/elements/gststatistics.c: (gst_statistics_base_init),
(gst_statistics_init):
* gst/elements/gsttee.c: (gst_tee_base_init), (gst_tee_init):
* gst/gstqueue.c: (gst_queue_base_init), (gst_queue_init):
s/gst_pad_new/&_from_template/
register pad templates in the base_init function
add static pad template definitions
2004-08-17 14:11:23 +00:00
Benjamin Otte
eb9087b14b gst/elements/gstfdsrc.c: reset offset counter when going READY => PAUSED. (fixes #142903)
Original commit message from CVS:
reviewed by Benjamin Otte  <otte@gnome.org>
* gst/elements/gstfdsrc.c: (gst_fdsrc_class_init),
(gst_fdsrc_change_state):
reset offset counter when going READY => PAUSED. (fixes #142903)
2004-06-06 21:11:51 +00:00
David Schleef
ca7539c40e Changes to handle compilers that don't have variadic macro support. In particular, glib headers define some inlines ...
Original commit message from CVS:
Changes to handle compilers that don't have variadic macro
support.  In particular, glib headers define some inlines
that need G_LOG_DOMAIN defined.  Additional fixes for MSVC
builds.
* gst/Makefile.am:
* gst/cothreads.c:
* gst/elements/gstfdsink.c:
* gst/elements/gstfdsrc.c:
* gst/elements/gstfilesink.c:
* gst/elements/gstfilesrc.c:
* gst/gst_private.h:
* gst/gstatomic.c:
* gst/gstcaps.c: (gst_caps_append):
* gst/gstcpu.c: (gst_cpuid_i386):
* gst/gstelement.c:
* gst/gsterror.c:
* gst/gstfilter.c:
* gst/gstinfo.h:
* gst/gstprobe.c:
* gst/gstquery.c:
* gst/gstregistry.c:
* gst/gststructure.c:
* gst/gsttaginterface.c:
* gst/gsttrace.c: (gst_trace_new):
* gst/gsttrashstack.c:
* gst/gsturi.c:
* gst/gstvalue.c:
* gst/parse/grammar.y:
* gst/parse/parse.l:
* tools/gst-inspect.c: (main):
* tools/gst-launch.c: (main):
* tools/gst-xmlinspect.c: (PUT_STRING):
2004-05-07 02:36:28 +00:00
Thomas Vander Stichele
5a322ed432 making _set_property warn on unknown properties use GST_TIME_FORMAT for timestamp/duration
Original commit message from CVS:

making _set_property warn on unknown properties
use GST_TIME_FORMAT for timestamp/duration
2004-04-20 16:25:41 +00:00
David Schleef
726bbbf7c6 configure.ac: Disable various code when compiling for MinGW.
Original commit message from CVS:
* configure.ac:  Disable various code when compiling for MinGW.
* gst/elements/Makefile.am:
* gst/elements/gstelements.c:
* gst/elements/gstfdsrc.c: (gst_fdsrc_get):
* gst/elements/gstfilesrc.c: (gst_filesrc_init), (gst_filesrc_get):
* gst/registries/gstxmlregistry.c: (make_dir):
2004-04-14 01:38:27 +00:00
Benjamin Otte
1cedbe04e1 gst/elements/gstfdsrc.c: set the first parameter for select call correctly.
Original commit message from CVS:
* gst/elements/gstfdsrc.c: (gst_fdsrc_get):
set the first parameter for select call correctly.
(fixes #137230)
2004-03-15 19:49:36 +00:00
Thomas Vander Stichele
7baa6c18e7 don't mix tabs and spaces
Original commit message from CVS:
don't mix tabs and spaces
2004-03-15 19:27:17 +00:00
Thomas Vander Stichele
a967370df5 gst-indent run on core
Original commit message from CVS:
gst-indent run on core
2004-03-13 15:27:01 +00:00
David Schleef
5e7335abe3 gst/elements/gstfdsrc.c: (gst_fdsrc_get): Use GST_TIME_TO_TIMEVAL()
Original commit message from CVS:
* gst/elements/gstfdsrc.c: (gst_fdsrc_get): Use GST_TIME_TO_TIMEVAL()
* gst/gstclock.h: Avoid using 64-bit % operator (slow!)
2004-02-13 23:56:11 +00:00
David Schleef
5432f712bb gst/elements/gstfdsrc.*: Adds timeout property to fdsrc, and sends an EOS event if file descriptor reading times out.
Original commit message from CVS:
reviewed by: David Schleef  <ds@schleef.org>
* gst/elements/gstfdsrc.c: (gst_fdsrc_class_init),
(gst_fdsrc_init), (gst_fdsrc_set_property),
(gst_fdsrc_get_property), (gst_fdsrc_get):
* gst/elements/gstfdsrc.h:  Adds timeout property to fdsrc,
and sends an EOS event if file descriptor reading times out.
2004-02-13 20:16:42 +00:00
Benjamin Otte
192330d37a parts of the patch submitted in bug #113913
Original commit message from CVS:
2004-01-30  Laurent Vivier <Laurent.Vivier@bull.net>

reviewed by Benjamin Otte
parts of the patch submitted in bug #113913

* configure.ac:
use AC_C_INLINE. Use = instead of == with test
* examples/plugins/example.c:
* gst/autoplug/gstspideridentity.c:
* gst/elements/gstfdsrc.c:
* gst/elements/gstfilesrc.c:
* gst/elements/gstidentity.c:
* gst/elements/gstmultidisksrc.c:
* gst/elements/gststatistics.c:
* gst/gstelement.c:
* gst/gstobject.c:
* gst/gstpad.c:
* gst/gstpipeline.c:
* gst/gstthread.c:
don't end enums with a comma
* gst/gstindex.c: (gst_index_compare_func):
do explicit casting to gint
* gst/gsttrace.c: (gst_trace_text_flush):
#define strsize as a macro
2004-01-30 20:48:13 +00:00
Benjamin Otte
de60fbda38 gst/gstutils.h: GST_PARENT_CALL and
Original commit message from CVS:
2004-01-08  Benjamin Otte  <in7y118@public.uni-hamburg.de>

* gst/gstutils.h:
Add GST_BOILERPLATE(_FULL), GST_PARENT_CALL and
GST_PARENT_CALL_WITH_DEFAULT
* gst/elements/gstaggregator.c:
* gst/elements/gstbufferstore.c:
* gst/elements/gstfakesink.c:
* gst/elements/gstfakesrc.c:
* gst/elements/gstfdsink.c:
* gst/elements/gstfdsrc.c:
* gst/elements/gstfilesink.c:
* gst/elements/gstfilesrc.c:
* gst/elements/gstidentity.c:
* gst/elements/gstmd5sink.c:
* gst/elements/gstmultidisksrc.c:
* gst/elements/gstpipefilter.c:
* gst/elements/gstshaper.c:
* gst/elements/gststatistics.c:
* gst/elements/gsttee.c:
* gst/elements/gsttypefindelement.c:
use them.
2004-01-08 04:10:18 +00:00
Benjamin Otte
907e3e97d9 update plugin initialization restructuring (see email for details
Original commit message from CVS:
update plugin initialization restructuring (see email for details
2003-10-31 19:32:47 +00:00
Andy Wingo
31d748d332 s/GstBuffer/GstData/ in the API where you can pass events. Fix the plugins to deal with that. Fixes #113488. Also inc...
Original commit message from CVS:
s/GstBuffer/GstData/ in the API where you can pass events. Fix the plugins to deal with that. Fixes #113488. Also includes scheduler patches, and probably fixes some queue bugs relating to events and buffers.
2003-10-08 16:06:02 +00:00
Benjamin Otte
803ce6bf48 GST_DEBUG reorganization containing loads of stuff:
Original commit message from CVS:
GST_DEBUG reorganization
This is a big diff (ca 450k), containing loads of stuff:
- gstinfo.[ch] complete rewrite
- changing of all GST_DEBUG messages to reflect that change
- reorganization of subsystem disabling
- addition of gstconfig.h.in so we can track the disablings
- <gst/gst.h> does not include <unistd.h> and <config.h> anymore
- documentation updated for gstinfo stuff (build the docs yourself to know what changed)
- bugfixes for making of the docs (files from CVS are not deleted anymore
- testsuite for debugging changes in testsuite/debug

expect breakage
2003-06-29 14:05:49 +00:00
Christian Schaller
63a4cb67c2 commit the fdsrc fix from Pedro Corte-Real
Original commit message from CVS:
commit the fdsrc fix from Pedro Corte-Real
2002-11-28 14:13:51 +00:00
Wim Taymans
c925bc7de0 Small cleanups
Original commit message from CVS:
Small cleanups
2002-11-27 23:14:33 +00:00
Wim Taymans
12490346d0 Small cleanups, more descriptive properties
Original commit message from CVS:
Small cleanups, more descriptive properties
2002-11-21 23:52:30 +00:00
Wim Taymans
99315ab3a6 Add an fd param to set the file descriptor as an int
Original commit message from CVS:
Add an fd param to set the file descriptor as an int
2002-10-17 22:32:55 +00:00
Andy Wingo
7820d80e33 adding ::license field to core plugins
Original commit message from CVS:
adding ::license field to core plugins
2002-09-29 17:52:31 +00:00
Steve Baker
adddd11e71 offset is an int64
Original commit message from CVS:
offset is an int64
2002-04-14 09:58:14 +00:00
Andy Wingo
a43fadec2e s/gst_element_install_std_props/gst_element_class_install_std_props/ -- it just makes more sense that way added jack ...
Original commit message from CVS:
* s/gst_element_install_std_props/gst_element_class_install_std_props/ -- it just makes more sense that way
* added jack element, doesn't quite work right yet but i didn't want to lose the work -- it does build, register,
and attempt to run though
* imposed some restrictions on the naming of request pads to better allow for reverse parsing
* added '%s' to reverse parsing
* added new bin flag to indicate that it is self-iterating, and some lame code in gst-launch to test it out
* fixen on launch-gui
* added pkg-config stuff for the editor's libs
2002-03-18 04:41:37 +00:00
Wim Taymans
90355128b5 - Removed deprecated buffer flags.
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
2001-12-28 20:20:26 +00:00
Christian Schaller
7886394507 more of the popular // fixes
Original commit message from CVS:
more of the popular // fixes
2001-12-17 18:14:51 +00:00
Wim Taymans
e2cb41fed8 More Michael fixage
Original commit message from CVS:
More Michael fixage
2001-12-13 23:37:47 +00:00
Wim Taymans
453f2fee05 Removed the old eos and qos functions.
Original commit message from CVS:
Removed the old eos and qos functions.
Removed the functions from the elements.
2001-08-10 17:34:59 +00:00
Wim Taymans
93c163032d Some code cleanups.
Original commit message from CVS:
Some code cleanups.
Added printouts of the buffer timestamps in identity, fakesrc, fakesink.
Added an aggregator test element.
2001-07-11 14:56:16 +00:00
Erik Walthinsen
7f8d8fe8d5 Merged from GOBJECT1 to HEAD at 200106241
Original commit message from CVS:
Merged from GOBJECT1 to HEAD at 200106241
2001-06-25 01:20:11 +00:00
Wim Taymans
51cbf22624 This is a megapatch with the following changes:
Original commit message from CVS:
This is a megapatch with the following changes:

- moved the gchar *name to GstObject, removed the ones in GstElement and
GstPad.
- moved the parent handling completely into GstObject. This cause *all* of
the plugins to fail (except those that used gst_pad_get_parent)
- rearanged the XML save handling.
- GstObject now has a class function save/restore_thyself.
- GstObject has a generic method gst_object_save_thyself, this makes it
possible to fire a signal wehever a new object is loaded. This is needed
so we can add XML save hooks.
- GstXML API has changed slightly. You now have to create a GstXML object
first before you can actually load something. This makes it possible to
attach a signal to GstXML whenever an object is loaded. I'm not sure we
will keep this interface.
- GstObject can now print the path_string without knowing about the GstPad and
GstElement types.
- Added gst_bin_get_by_name_recurse_up to lookup an element in the current
element hierarchy.
- added XML namespaces to the saved pipelines the namespace is:
http://gstreamer.net/gst-core/1.0/
namespaces are needed to distinguish user generated XML from the core XML.

Note that the plugins still contain a macro GST_OBJECT_PARENT that will be
replaced with gst_pad_get_parent shortly.
2001-01-29 00:06:02 +00:00
Erik Walthinsen
104c1889ed Updated copyright notices.
Original commit message from CVS:
Updated copyright notices.
2000-12-29 05:38:06 +00:00
Erik Walthinsen
09eeadb15f Reparented everything to GstElement, removing GstSrc, GstSink, GstFilter, and GstConnection. Also fixed a bug in gst...
Original commit message from CVS:
Reparented everything to GstElement, removing GstSrc, GstSink, GstFilter,
and GstConnection.  Also fixed a bug in gst_bin_iterate_func.
2000-12-29 02:28:04 +00:00
Erik Walthinsen
c287566d0c Massive scheduling changes (again). Not entirely complete, but getting closer. Need to think about various scheduli...
Original commit message from CVS:
Massive scheduling changes (again).  Not entirely complete, but getting
closer.  Need to think about various scheduling plans that we might want
to produce, and figure out the rules for what is legal, and how to get
the results we need as far as the plan.
2000-12-20 09:39:43 +00:00
Erik Walthinsen
da03fde054 WARNING: Don't grab this updated unless you're really, REALLY sure.
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.
2000-12-16 10:18:09 +00:00
Erik Walthinsen
04c360e39f Changed the way things are scheduled, especially sources. A Src used to have a push() function, and optionally a pus...
Original commit message from CVS:
Changed the way things are scheduled, especially sources.  A Src used to
have a push() function, and optionally a pushregion() to deal with async
reads, etc.  That whole thing has gone away, in favor of providing a
pull() function for the output (Src) pad instead, ala chain functions.
This makes constructing cothreaded schedules out of non-loop elements
somewhat easier.  Basically there was always a question as to which pad
was being dealt with.  In the pullregion case, cothread-specific data was
used to try to pass the region struct to the right place, which is a slow
hack.  And in general, the push function severely limited the kind of
tricks that could be played when there's more than one output pad, such as
a multi-out file reader with async capabilities on each pad independently.

This changes the way cothread scheduling occurs.  Instead of the hack to
deal with Src's by calling their push() function (or optionally the
pushregion(), in certain cases), we now are working towards a general
mechanism where pads are the only thing that are dealt with directly.

An optimization was made in the process of doing this: the loopfunction
actually run as the outer [stack] frame of the cothread is now set more
intelligently in create_plan() based on what kind of element it is.  We
now have:

loopfunc_wrapper: used for loop-based elements, it simply calls the
loopfunc in a loop, paying attention to COTHREAD_STOPPING (see
below).  It currently does other, soon to be depracated, stuff.

pullsrc_wrapper: wraps a Src that's not loop-based (since your options
are now loop- or pull-based)

There will be a couple more to deal with other cases, such as Connections
and chain-based elements.  The general idea is that it's a lot more
efficient to make the decisions once in create_plan than to keep doing
this huge if/else chain in the wrapper.  Just choose the right wrapper up
front.  It'll be most apparent performance-wise in the case of whichever
element context is switched to first for each iteration, since the whole
wrapper setup is done for every iteration.

The tricky part is that there is now a bit of overloading of the function
pointers in a pad.  The current meanings (possibly to change a bit more
soon) are:

chainfunc: as always, chainfunc pointer is mirrored between peer pads
(this may change, and the chain func may end up in pushfunc)
pushfunc: SrcPad: gst_pad_pushfunc_proxy, cothread_switch to peer
SinkPad: none (may take over chainfunc, see below) pullfunc:
SrcPad: Src or Connection's function to construct buffers
SinkPad: gst_pad_pullfunc_proxy, cothread_switch to peer

There are a number of issues remaining with the scheduling, not the least
of which is the fact that Connections are still dealt with the old way,
with _push() functions and such.  I'm trying to figure out a way to unify
the system so it makes sense.  Following the scheduling system is hard
enough, trying to change it is murder.


Another useful scheduling addition, mentioned above, is COTHREAD_STOPPING.
It's an element flag that's used to signal whatever code is running in
cothread context that it should be finishing up and exiting soon.  An
example of this is in plugins/cobin/spindentity.c.  All the loops should
now be composed of do/while loops, rather than while(1) loops:

do {
buf = gst_pad_pull(spindentity->sinkpad);
gst_pad_push(spindentity->srcpad,buf);
} while (!GST_ELEMENT_IS_COTHREAD_STOPPING(element));

The reason for this is that COTHREAD_STOPPING may be set before the above
loop ever gets started.  It wouldn't do for the body of the loop to never
once get called, that would simply stall the pipeline. Note that only the
core library code is ever responsible for setting and unsetting this flag.
All elements have to do is respond to it by cleanly exiting the loop and
the function holding it.

This is needed primarily to allow iterations to occur properly.
Basically, there's a single entry point in the cothread scheduling loop,
gst_bin_iterate_func() simply switches to this cothread.  If the element
in this context is allowed to loop infinitely, nothing would even switch
back to the context from which the iterate() was originally called.  This
is a bit of a problem.  The solution is for there to be an implicit switch
back to the originating context.  Now, even I'm not sure exactly how this
works, but if the cothread that's switched to actually returns, execution
returns back to the calling context, i.e. iterate_func().

COTHREAD_STOPPING is therefore set just before switching into this
(currently randomly chosen) context, on the assumption that it will return
promptly after finishing its duties.  The burden of clearing the flag
falls to the various wrapper functions provided by the Bin code, thus
element writers don't have to worry about doing that at all (and simply
shouldn't).


Related changes:
All the sources in elements/ have been changed to reflect the new system.


FIXMEs:
1) gstpipeline.c calls gst_src_push at some point, dunno why, it's
commented out now.
2) any other sources, including vcdsrc, dvdsrc, and v4lsrc will break
badly and need to be modified to work as pull-based sources.
2000-12-04 10:52:30 +00:00
Wim Taymans
26a69ef7f8 Code Cleanups
Original commit message from CVS:
Code Cleanups
Added use cases for the source elements.
2000-11-25 14:18:47 +00:00
Wim Taymans
04bb8b0142 Added extra Gtk types for better editor properties (FILENAME, enums)
Original commit message from CVS:
Added extra Gtk types for better editor properties (FILENAME, enums)
The disksrcs location property can now be set in the editor: we can
now make our first working mp3 player with gsteditor!!
2000-10-11 19:30:07 +00:00
Erik Walthinsen
6340b23cc0 Brought standard elements in line with new state management system.
Original commit message from CVS:
Brought standard elements in line with new state management system.
2000-07-21 03:57:51 +00:00
Wim Taymans
9b0e11ec7e Added seeking to some of the plugins. some MMX speedups in the MPEG decoders.
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.
2000-07-05 10:21:08 +00:00
Wim Taymans
bf8c785fb0 Documentation updates. All standard library objects and standard elements are documented. Modified some of the elemen...
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)
2000-03-27 19:53:43 +00:00
Wim Taymans
ef63c32778 This is a rather large patch. Switched on -Wall compiler flag and fixed the warnings.
Original commit message from CVS:
This is a rather large patch. Switched on -Wall compiler flag and fixed
the warnings.
Made the Video for Linux more like it should be.
2000-02-27 23:18:38 +00:00