Commit graph

487 commits

Author SHA1 Message Date
Erik Walthinsen
dfa833096c added sanity checks to make sure _push and _pull don't get called on pads of the wrong direction
Original commit message from CVS:
added sanity checks to make sure _push and _pull don't get called on pads of the wrong direction
2001-05-30 20:13:34 +00:00
Erik Walthinsen
13502fc293 Added some caps != NULL checks.
Original commit message from CVS:
Added some caps != NULL checks.
Patched up a problem with the thread handling when the iteration fails.
Cleaned up the output of -inspect a tiny bit.
2001-05-27 23:57:34 +00:00
Wim Taymans
b93de9e922 Docs updates
Original commit message from CVS:
Docs updates
Changed the cothread to use sigjmp_buf
removed some unused methods.
Some code cleanups.
2001-05-27 14:37:29 +00:00
Erik Walthinsen
4a583683e5 Merged from INCSCHED on 200505251!!!
Original commit message from CVS:
Merged from INCSCHED on 200505251!!!
2001-05-25 21:00:07 +00:00
Wim Taymans
18a4283a4e More API docs updates
Original commit message from CVS:
More API docs updates
2001-04-19 22:25:04 +00:00
Wim Taymans
6bd5dcffab The first wave of docs updates
Original commit message from CVS:
The first wave of docs updates
Added a little more comments about the API usage in the api docs.
Some fixes for the capsnego testsuite.
2001-04-17 21:14:55 +00:00
Wim Taymans
6118b074bc Added 1337 macros to create padtemplates and capstemplates.
Original commit message from CVS:
Added 1337 macros to create padtemplates and capstemplates.
Added some code for bufferpools
2001-04-16 21:45:02 +00:00
Wim Taymans
b38d9a945b A rather large patch:
Original commit message from CVS:
A rather large patch:
- changed the API for the padtemplates:
- remove the factories (array of pointers) for the padtemplates,
properties and caps. The static array was a nice idea but converting
all the property values to a gpointer was not a good idea.
float properties were not possible, and casting a gint to a pointer
is not very portable. The new API just uses the _padtemplate_new,
_caps_new and _props_new functions to create the templates.
This has the added benefit that the API is now uniform for static
and dynamic templates and that the code can be made cleaner.
- lots of cleanups in the way the capabilities are constructed (va_list)
- lots of updates for all the plugins (new API)
- docs updates (new API)
- removed the videoraw docs.
2001-04-14 18:56:37 +00:00
Wim Taymans
335080574f Lots of updates to the plugins for caps negotiation.
Original commit message from CVS:
Lots of updates to the plugins for caps negotiation.
Added YUY2 output to the win32 dlls.
Added a colorspace converter in gstplay
2001-04-12 18:11:19 +00:00
Wim Taymans
9f44f8ecc2 Added a plain X videosink, the videosink uses capsnego. adjusted the v4lsrc so that it uses capsnego on the src pad
Original commit message from CVS:
Added a plain X videosink, the videosink uses capsnego.
adjusted the v4lsrc so that it uses capsnego on the src pad
Small fixed to capsnego and the properties/caps.
2001-03-29 22:32:00 +00:00
Wim Taymans
1d040471a4 API docs updates
Original commit message from CVS:
API docs updates
2001-03-21 21:43:56 +00:00
Wim Taymans
0267b92c93 More work on capsnego proxying. It should be OK now.
Original commit message from CVS:
More work on capsnego proxying. It should be OK now.
Added another testcase enum that shows various capsnego algorithms.
Warn about pads that try to set a capability incompatible with their
padtemplate.
Implemented refcounting and copy_on_write for caps/props.
2001-03-20 18:29:00 +00:00
Wim Taymans
29cb713b21 More work on capsnego, mostly proxying
Original commit message from CVS:
More work on capsnego, mostly proxying
Added another testsuite for capsnego
Added caps to vorbisdec, mp3parse, mp1videoparse
Redid the queue proxy handling a bit.
2001-03-18 16:17:39 +00:00
Wim Taymans
3534e68563 Reworked the capsnegotiation function audiosink now uses capsnego to set its parameters mpg123/ac3dec use capsnego in...
Original commit message from CVS:
Reworked the capsnegotiation function
audiosink now uses capsnego to set its parameters
mpg123/ac3dec use capsnego instead of metadata
Added the beginnings of a testsuite for capsnego.
2001-03-18 02:42:30 +00:00
Wim Taymans
661ba7feb7 Small fixes to the caps compatibility check.
Original commit message from CVS:
Small fixes to the caps compatibility check.
Small changes to the pad negotiation and proxy functions
2001-03-13 20:26:23 +00:00
Wim Taymans
3ec275832a Merged the CAPSNEGO1 branch..
Original commit message from CVS:
Merged the CAPSNEGO1 branch..
2001-03-12 21:02:12 +00:00
Wim Taymans
55006f6367 Merged the AUTOPLUG2 branch
Original commit message from CVS:
Merged the AUTOPLUG2 branch
2001-03-07 21:52:56 +00:00
Wim Taymans
1340064d57 More doc updates
Original commit message from CVS:
More doc updates
Manual additions: xml/load save of custom XML, debugging, request pads
added a signal to the example plugin
fixed a bug in mp3parse (ifdef 1)
2001-02-22 23:18:51 +00:00
Richard Boulton
b12b280b91 Fix a couple of instances of childs, which should be xmlChildrenNode. We need to be careful to stop these creeping b...
Original commit message from CVS:
Fix a couple of instances of childs, which should be xmlChildrenNode.  We
need to be careful to stop these creeping back in... ;-)
2001-02-15 18:42:13 +00:00
Erik Walthinsen
c17ed10404 Reworked getregion/pullregion stuff. Region is now specified by a type (OFFSET_LEN, TIME_LEN, etc.) and two guint64'...
Original commit message from CVS:
Reworked getregion/pullregion stuff.  Region is now specified by a type
(OFFSET_LEN, TIME_LEN, etc.) and two guint64's.  They are offset and len,
where offset can be used for the time field, and len would be zero or
the time unit (say, 33ms for video).
2001-02-05 17:16:23 +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
Wim Taymans
75aa948e0c Docs updates
Original commit message from CVS:
Docs updates
Added XML load from memory functionality
Undid the videosink patch, something else is wrong now on my machine:
no MMX acceleration :-(
2001-01-21 23:20:46 +00:00
Wim Taymans
fdaa2307da A very small change to make eos somewhat work. no inner bins are checked.
Original commit message from CVS:
A very small change to make eos somewhat work. no inner bins are checked.
When an element fires EOS, the chain with that element is removed from
the scheduler (marked inactive). If all chains are inactive, the bin
fires EOS.
2001-01-20 03:10:44 +00:00
Erik Walthinsen
4a5ed7bf58 Got ghostpads to work, even in -launch. Needs more testing still.
Original commit message from CVS:
Got ghostpads to work, even in -launch.  Needs more testing still.
2001-01-20 02:57:46 +00:00
Wim Taymans
9b3f1277ce API docs updates
Original commit message from CVS:
API docs updates
2001-01-19 22:15:21 +00:00
Erik Walthinsen
74f8050844 Major cleanup of the latest ghostpad changes. Fixed everything that broke, correctly. Someone will want to go updat...
Original commit message from CVS:
Major cleanup of the latest ghostpad changes.  Fixed everything that
broke, correctly.  Someone will want to go update the API doc templates.
2001-01-19 09:37:32 +00:00
Erik Walthinsen
c31f9a570c First pass at updating to new ghostpad system. The objects are in place,
Original commit message from CVS:
First pass at updating to new ghostpad system.  The objects are in place,
I now need to go and get all the Bin end of things worked out.  Testing
should be fairly easy, at least for verification.

Everything I've tried so far works with no changes, with is amazing.
That's just cool.  Once again we rewrite an entire subsystem, and nothing
else notices anything but the new features ;-)
2001-01-19 02:23:35 +00:00
Wim Taymans
90f82b6840 Added mthodes to request an element to create pads: gst_element_request_pad*
Original commit message from CVS:
Added mthodes to request an element to create pads: gst_element_request_pad*
This can be used to construct a tee and a muxer/mixer/aggregator element.
Moved the tee element to elements/ because it can now be handled with the
new pad request features.
The padfactory also has some changes: a pad can now be of presence REQUEST,
which means that the pad can be requested from this plugin (doh).
2001-01-18 23:46:15 +00:00
Richard Boulton
41ebd85275 Fixes to work with libxml2.
Original commit message from CVS:
Fixes to work with libxml2.
Also improved a couple of debugging messagse.
2001-01-18 11:16:53 +00:00
Wim Taymans
22c9d0f1a6 include parser.h instead of gnome-xml/parser.h untill xml-config is fixed...
Original commit message from CVS:
include parser.h instead of gnome-xml/parser.h untill xml-config is
fixed...
2001-01-13 13:51:08 +00:00
Erik Walthinsen
558e9f4308 renamed private to element_private, to make obvious its usage restrictions
Original commit message from CVS:
renamed private to element_private, to make obvious its usage restrictions
2001-01-11 22:09:29 +00:00
Erik Walthinsen
60daf21ed4 added gpointer private to pads, so elements can store ints or pointers for their own use
Original commit message from CVS:
added gpointer private to pads, so elements can store ints or pointers for their own use
2001-01-11 22:03:01 +00:00
Erik Walthinsen
e33b2e5908 more leak fixes
Original commit message from CVS:
more leak fixes
2001-01-07 07:45:54 +00:00
Erik Walthinsen
7c51d6e0ca Cleaned up the docs a bit.
Original commit message from CVS:
Cleaned up the docs a bit.
2001-01-06 22:05:15 +00:00
Erik Walthinsen
759d83e487 Rearranged cothreads sources a bit, added some API docs.
Original commit message from CVS:
Rearranged cothreads sources a bit, added some API docs.
Added some functions needed for gstreamer-inspect.
Added num_sources to fakesink.
2001-01-04 10:54:27 +00:00
Erik Walthinsen
45f05bf6ed Made gst_pad_eos_func a non-static function
Original commit message from CVS:
Made gst_pad_eos_func a non-static function
2001-01-03 20:40:26 +00:00
Wim Taymans
dd37e99746 Fixes for gsteditor/gstplay install/build fixed typo in random/eos added num_buffers property to fakesrc
Original commit message from CVS:
Fixes for gsteditor/gstplay install/build
fixed typo in random/eos
added num_buffers property to fakesrc
2001-01-02 01:44:53 +00:00
Wim Taymans
4328a30762 Documentation updates
Original commit message from CVS:
Documentation updates
2001-01-01 17:25:43 +00:00
Erik Walthinsen
2da16ed5ed Re-arranged the build a bit to try to make it more sane. Added some debug.
Original commit message from CVS:
Re-arranged the build a bit to try to make it more sane.  Added some debug.
2001-01-01 08:37:41 +00:00
Erik Walthinsen
1bf936db6d modified cmdlien code to take both 0xHEX and dec, and added an INFO line in gst_pad_connect()
Original commit message from CVS:
modified cmdlien code to take both 0xHEX and dec, and added an INFO line in gst_pad_connect()
2001-01-01 04:41:40 +00:00
Erik Walthinsen
1e04cefaf2 Mega update of INFO, DEBUG, and ERROR subsystems, renamed with GST_ prefix.
Original commit message from CVS:
Mega update of INFO, DEBUG, and ERROR subsystems, renamed with GST_ prefix.
GST_DEBUG now takes a category parameter, which is the same as GST_INFO
system.  They are now called GST_CAT_*.  All the GST_DEBUGs are set to 0
for now, we need to go and fix all these eventually.
2001-01-01 03:14:40 +00:00
Wim Taymans
527525a282 Fix some compile warnings
Original commit message from CVS:
Fix some compile warnings
2000-12-31 23:31:51 +00:00
Erik Walthinsen
9a0438ba93 Started work on better ghostpad management, and started to build the low- level EOS mechanism.
Original commit message from CVS:
Started work on better ghostpad management, and started to build the low-
level EOS mechanism.

Also removed a couple of printouts that aren't needed any more.
2000-12-31 22:18:05 +00:00
Wim Taymans
1c5119618d Updated the docs
Original commit message from CVS:
Updated the docs
Updated gst/Makefile.am to add CFLAGS
Added test programs to tests/.cvsignore
2000-12-31 17:02:47 +00:00
Wim Taymans
bc4619a44b Added multiple caps to the pads
Original commit message from CVS:
Added multiple caps to the pads
Extended the padfactory for the multiple caps
GstCaps now have a name so that future manipulations on them can be done by name
Updated the plugins for the new caps list
2000-12-31 16:12:48 +00:00
Erik Walthinsen
9813b0ca37 Updated more files to use INFO.
Original commit message from CVS:
Updated more files to use INFO.
2000-12-30 02:41:15 +00:00
Erik Walthinsen
ca1c48e95c Updated copyright in all the libgst files.
Original commit message from CVS:
Updated copyright in all the libgst files.
Created gst_private.h, set up all files to use it.
2000-12-28 22:12:02 +00:00
Wim Taymans
9655c3b593 Updated the API docs.
Original commit message from CVS:
Updated the API docs.
2000-12-28 21:42:23 +00:00
Erik Walthinsen
c706b66123 removed some dead pad_pull/push code
Original commit message from CVS:
removed some dead pad_pull/push code
2000-12-28 21:12:40 +00:00
Wim Taymans
41aa51ba45 Fixes for the new scheduler.
Original commit message from CVS:
Fixes for the new scheduler.
Autoplug works again with mp3/mpeg1/ogg
2000-12-28 00:18:26 +00:00
Wim Taymans
0062e168ca Fixed a bug in gstbin.c the manager was not detected.
Original commit message from CVS:
Fixed a bug in gstbin.c the manager was not detected.
Some other testcases
bin, thread, pipeline use the elementfactory on gst_*_new
2000-12-22 23:23:10 +00:00
Wim Taymans
510430d10f The typefind function now returns a GstCaps structure instead of a gboolean. modified some plugins to this new behaviour
Original commit message from CVS:
The typefind function now returns a GstCaps structure instead of a gboolean.
modified some plugins to this new behaviour
Fixed autoplugging for the mpg123 case. When an element is selected in
autoplugging and the caps do not match, another element is selected until the
caps match. only examples/autoplug works because gstmediaplay uses a threaded
setup that does not seem to work with the current scheduling.
2000-12-17 16:24:14 +00:00
Wim Taymans
c6ac8a0f6b some editor changes= loading of save pipelines (not working) added include in gstdebug.h for getpid property loading ...
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.
2000-12-16 17:12:28 +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
Wim Taymans
a63780a377 Header cleanup: try to include as little as possible; this will probably speed up compilation a bit.
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.
2000-12-15 01:57:34 +00:00
Wim Taymans
f8386fbaa0 Some plugins are adjusted to the new pad template mechanisms.
Original commit message from CVS:
Some plugins are adjusted to the new pad template mechanisms.
2000-12-14 17:21:29 +00:00
Wim Taymans
196c67d7ff Changed the GstPadFactory and added the GstPadTemplate.
Original commit message from CVS:
Changed the GstPadFactory and added the GstPadTemplate.

The GstPadFactory is an easy way to define a pad with capabilities.
The GstPadFactory is converted into a GstPadTemplate. The template is
used to create new pads and to expose the possible pads used in an
element to the plugin system.

updated mp3parse, mpg123, cdparanoia to the new API.
Rerun gstreamer-register because the XML definition has changed.
2000-12-13 19:29:35 +00:00
Wim Taymans
d78215be9d More Caps changes, this change introduces the padfactory. the GstPadFactory will be used to describe the pads that an...
Original commit message from CVS:
More Caps changes, this change introduces the padfactory. the GstPadFactory
will be used to describe the pads that an element will contain during
its lifetime.
mpg123 and mp3parse serve as an example.
More XML changes to incorporate the padfactories.
2000-12-12 19:29:43 +00:00
Erik Walthinsen
b063cb96f1 Implemented the hybrid scheduling system for sources and connections outside the current Bin. Is a bit hackish in on...
Original commit message from CVS:
Implemented the hybrid scheduling system for sources and connections
outside the current Bin.  Is a bit hackish in one place, but I'll work out
a way to make that cleaner soon.  queue.c in tests now works nicely in all
cases.  More to come later.
2000-12-11 00:24:32 +00:00
Wim Taymans
6fa6cd8ce4 First attempt at rebuilding the type/plugin system
Original commit message from CVS:
First attempt at rebuilding the type/plugin system
- make sure caps/props are saved in the registry
autoplugging is completely broken.
removed the typefactories and typeids from all the pads in the plugins
XML load/save is ok (be sure to rerun gstreamer-register)
2000-12-11 00:04:25 +00:00
Wim Taymans
cd24b35b70 Added pullregion in again, it got removed with the previous commit.
Original commit message from CVS:
Added pullregion in again, it got removed with the previous commit.
2000-12-08 18:24:16 +00:00
Erik Walthinsen
990baba8e3 Another big set of changes. Connections are now also pullfunc based. gstqueue has been updated, I don't know of any ...
Original commit message from CVS:
Another big set of changes.  Connections are now also pullfunc based.
gstqueue has been updated, I don't know of any other connections offhand.

There are still a few things that need doing, specifically the concept
of a source or connection with connections to multiple thread contexts is
not dealt with.  This may force us to move the threadstate from the
element to the pad, maybe keeping the element's copy for simple cases.
Then the Bin would create a structure to pass to the cothreaded _wrappers
of any such elements, which would detail the pads that are to be dealt with
by this particular cothread context.

That will speed things up to, since we don't have to look through the list
of all pads for every Src or Connection element for every iteration, we can
simply step through the list provided by the plan.  Special case might even
have a single pad pointer sitting there to trump the list, if there's only
one (the common case anyway).

Task 23098 is tracking these changes.  The main task 22588 depends on that
subtask, as well as 22240, which is a consistency check on PAD_DISABLED.
2000-12-08 10:33:01 +00:00
Wim Taymans
1af7640685 Added pulregion handling.
Original commit message from CVS:
Added pulregion handling.
Added GstCapsListFactory in headers
2000-12-06 23:04:12 +00:00
Wim Taymans
855b6877e9 Fixed autoplugging.
Original commit message from CVS:
Fixed autoplugging.
2000-12-05 18:08:59 +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
4f55ae4ded Added multiple types to the pads.
Original commit message from CVS:
Added multiple types to the pads.
Added first preview of the capabilities system.
Autoplugging is seriously broken with these (and other) changes.
2000-12-03 17:51:29 +00:00
Erik Walthinsen
726f7d36dc added the ability to disable pads, not quite complete but sufficient for now
Original commit message from CVS:
added the ability to disable pads, not quite complete but sufficient for now
2000-11-25 07:02:55 +00:00
Wim Taymans
415ced1c0b Added seeking to the avi decoder by implementing pull_region.
Original commit message from CVS:
Added seeking to the avi decoder by implementing pull_region.
Fixes to the asyncdisksrc.
Added thread specific data to the cothreads.
2000-11-06 00:15:51 +00:00
Wim Taymans
9500bd2128 Code cleanup, make it adhere to the Gnome/Gtk+ code formatting, which is quite clean and more readable.
Original commit message from CVS:
Code cleanup, make it adhere to the Gnome/Gtk+ code formatting, which is
quite clean and more readable.
Renamed parseavi to avidecoder
Implemented seeking/time display/pause/play/stop/clean exit to gstmediaplay
Added an element flag to indicate that it cannot deal with noncontigous
buffers. If such an element is found in the pipeline, seeking is disabled
for the complete stream (avidecoder cannot deal with seeking until we convert
it to a loop based element with pull_region to fetch the indeces etc...)
2000-11-01 13:49:41 +00:00
Wim Taymans
9bae9d4b91 More Docs updates.
Original commit message from CVS:
More Docs updates.
Added plugin documentation. I fear we need a gstdoc implementation
that loads plugins and does introspection on them. I think we should
automatically create the docs for the pads and mime types the plugins
provide. Does anyone have enough perl knowledge to add these features? I
allready changed the C code to output the pad definitions but my perl
knowledge is too limited, for now, to implement the rest of the needed
functionality...
2000-10-25 19:09:53 +00:00
Wim Taymans
2521a319c3 MPEG2 types added for better autoplugging. MPEG2 works more or less. fix in autoplugging. avi now works.
Original commit message from CVS:
MPEG2 types added for better autoplugging. MPEG2 works more or less.
fix in autoplugging. avi now works.
2000-10-21 12:04:40 +00:00
Wim Taymans
695f761c2b Fixed a bug in the typeloading.
Original commit message from CVS:
Fixed a bug in the typeloading.
Fixes to various elements so that correct types are returned.
Fixed flag collision with GtkObject.
Elements can now suggest a thread. not sure if this is the right way to
handle automatic thread creation.
Autoplugging now works with multiple sinks and thread setup. No threads
are created for intermediate elements yet, so MPEG may still be choppy.
2000-10-08 22:17:11 +00:00
Wim Taymans
4e7f031df7 Loading and saving of XML pipeline descriptions.
Original commit message from CVS:
Loading and saving of XML pipeline descriptions.
GladeXML like operation implemented (you can retrieve parts of a pipeline)
2000-09-27 19:33:10 +00:00
Wim Taymans
d00af07660 The cothreads were not initialized in its thread context resulting in severe stack corruption. This was very hard to ...
Original commit message from CVS:
The cothreads were not initialized in its thread context resulting in
severe stack corruption. This was very hard to track down.
We should be able now to modify some plugins to a loop based setup so that
we can get rid of the mp3parse and mp1videoparse elements.
Modified the GList to a GSList in the queue.
2000-09-24 14:29:49 +00:00
Wim Taymans
e5ab7f33ac A first attempt to fix the queues in a cothreaded pipeline.
Original commit message from CVS:
A first attempt to fix the queues in a cothreaded pipeline.
Some fixes to the thread handling.
Fix a bug in gstreamer-config : gthread was not included.
gst_bin_create_plan() is now done in the READY state.
a bin with only another bin in it will now work with gst_bin_iterate.
Added some examples for the queues.
2000-09-22 23:35:14 +00:00
Wim Taymans
ff99ee6132 Added a quick hack to allow loop based elements to finish intead of looping till infinity.
Original commit message from CVS:
Added a quick hack to allow loop based elements to finish intead of
looping till infinity.
Added compile time i386 or plain C getbits implementation selection.
The vorbis decoder now is our first loop based element!
2000-09-16 10:58:23 +00:00
Wim Taymans
8051d54c36 Due to popular demand :-), I added a vorbis decoder.
Original commit message from CVS:
Due to popular demand :-), I added a vorbis decoder.
The encoder is not yet functional.
Small cosmetic changes to gstcpu.c

Beware:
You *need* to install libvorbis.a from the main vorbis CVS.
you *have* to change the line in libtool to
deplibs_check_method="pass_all"
because else the plugin shared library refuses to link against the
static libvorbis.a library. This is a hack. I have no intention in
including libvorbis into the gstreamer CVS tree and making it
libtool compatible.
2000-09-14 20:31:03 +00:00
Wim Taymans
6661696de0 Various fixes for the build/install problems update to the docs/manual. Added a simple helloworld example.
Original commit message from CVS:
Various fixes for the build/install problems
update to the docs/manual. Added a simple helloworld example.
2000-08-18 20:35:48 +00:00
Wim Taymans
202ba2ae4a State change fixes in the threading element.
Original commit message from CVS:
State change fixes in the threading element.
Added bufferpools.
2000-08-14 10:55:35 +00:00
Erik Walthinsen
b6d31c1c72 Megapatch, changes which states are available, how they're used, and how they're set. Also modifies the scheduling s...
Original commit message from CVS:
Megapatch, changes which states are available, how they're used, and how
they're set.  Also modifies the scheduling system, breaking pulled
buffers.  Check mail archives for more details.
2000-07-17 17:14:15 +00:00
Wim Taymans
9920b88c3f This is the audio/video sync release.
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.
2000-07-12 22:52:42 +00:00
Wim Taymans
a3d5d3a62b Switched Cr and Cb in YUV2RGB fixed the avi parser (gstriff had wrong size) the system_encoder can now do video only ...
Original commit message from CVS:
Switched Cr and Cb in YUV2RGB
fixed the avi parser (gstriff had wrong size)
the system_encoder can now do video only system streams
sanitized the colorspace and scaler api.
added fast self modifying asm scaler.
worked on the typefind stuff.
added a cool media player (gstplay) it uses the typefinder to playback
avi, mpeg1 (system and video) streams. It is also a testbed and a real app.
2000-06-25 21:38:00 +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
53b9cea328 Added jpeg decoder. the avi decoder now configures the jpeg codec if an MJPG encoded avi is found. Fixed riff parsing...
Original commit message from CVS:
Added jpeg decoder. the avi decoder now configures the jpeg codec if
an MJPG encoded avi is found. Fixed riff parsing. readded rgb_draw
functions to the videosink. jpeglib is used to decode the jpeg image.
2000-03-22 21:18:15 +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
Wim Taymans
c144819530 Added a pull function in the gstpad. Modified the videosink to implement the pull. This function allows a source elem...
Original commit message from CVS:
Added a pull function in the gstpad. Modified the videosink to implement
the pull. This function allows a source element to request a buffer
from the destination. This is much more efficient because the
videosink can then pass a buffer with SHM to the element, which does
not require an aditional memcpy.
removed scaling from the videosink. I need something better.
2000-02-26 18:55:14 +00:00
Erik Walthinsen
1762dfbf98 initial checkin
Original commit message from CVS:
initial checkin
2000-01-30 09:03:00 +00:00