This is what can happen in a plugin_init function:
- An element based on GstBaseSink is registered
- Other elements fail to register
- The plugin_init function returns FALSE
Now if this the plugin is the first plugin to link against
libgstbase.so, it will have caused libgstbase.so to be loaded and static
strings from that library will have been added to gobject while
registering GstBaseSink.
So unloading the plugin will cause those strings to go stale and the
next plugin using GstBaseSink will crash. So we must not unload modules
after calling into them ever.
https://bugzilla.redhat.com/show_bug.cgi?id=572800
This changes some APIs in compatible ways:
- Some functions now take "const char *" arguments, not "char *"
- Some structs now have "conts char *" members, not "char *"
The changes may cause warnings when compiling with the right warning
flags. You've been warned.
Also adds -Wwrite-strings as a warning flag in configure.ac.
https://bugzilla.gnome.org/show_bug.cgi?id=611692
Adds that warning to configure.ac
Includes a tiny change of the GST_BOILERPLATE_FULL() macro:
The get_type() function is no longer declared before being defined.
https://bugzilla.gnome.org/show_bug.cgi?id=611692
For the reason outlined at the beginning of gst_private.h (inline
functions in glib may need the g_log_domain variable). Also include
gst_private.h before using any G_OS_* defines, esp. in plugin loader.
This avoids:
* triple-checking for the GType when type-checking is enabled (see #597260)
* Avoids going through an expensive no-argument checking which landed in
glib-2.22
* Avoids going through 2 extrac functions (g_object_new -> g_object_new_valist)
There's not much point in using GST_DEBUG_FUNCPTR with GObject
virtual functions such as get_property, set_propery, finalize and
dispose, since they'll never be used by anyone anyway. Saves a
few bytes and possibly a tenth of a polar bear.
The first time one calls gst_element_factory_make(), gst recreates the plugin
feature and the element factory. As a side effect we ref the class to fill
in detail we already have filled from the registry cache. This patch changes
the behaviour to just update the existing entries. The factory is now attached
to the type and set in gst_element_base_class_init().
Original commit message from CVS:
* gst/gstplugin.c:
* gst/gstregistry.c:
GstRegistryPool doesn't exist; don't refer to it in docs.
Don't refer to functions that don't exist in docs, it's
unhelpful.
Original commit message from CVS:
* gst/gstplugin.c: (CHECK_PLUGIN_DESC_FIELD), (gst_plugin_load_file):
Print error debug message if plugin description fields that should
be set are NULL.
* gst/gstregistrybinary.c: (gst_registry_binary_save_const_string):
Don't crash if the string to serialise is NULL (it really should
not be, but apparently this used to work with the xml registry ...).
Original commit message from CVS:
* gst/gstplugin.c: (_gst_plugin_initialize):
Fix old-style static plugins via GST_PLUGIN_DEFINE_STATIC
again, which I broke two commits ago when changing the API
of gst_plugin_register_static(): the g_list_foreach() in
_gst_plugin_register_static still assumed the old function
signature and would therefore fail (re-fixes #510187).
* gst/gstplugin.c: (_num_static_plugins), (_static_plugins),
(_gst_plugin_register_static), (gst_plugin_register_static):
Revert the (technically correct) change to call g_thread_init() from
the pre-main() constructor. This will break programs which call
g_thread_init() without an if (!g_thread_supported()) guard in their
main function. We could just blame it on GLib or the application, but
it's probably best to just avoid this altogether and simply not use
any GLib functions here and use plain old malloc() with a simple
array to store the plugins to register later when gst_init() is
finally called (re-fixes #510187).
* tests/check/gst/gstplugin.c: (GST_GNUC_CONSTRUCTOR_DEFINED),
(GST_GNUC_CONSTRUCTOR_DEFINED), (plugin_init_counter),
(plugin1_init), (plugin2_init), (plugin3_init), (GST_START_TEST),
(GST_START_TEST), (gst_plugin_suite):
Dumb unit test to make sure the old GST_PLUGIN_DEFINE_STATIC still
works.
Original commit message from CVS:
* gst/gst.c: (init_post):
* gst/gstplugin.c: (_gst_plugin_register_static),
(gst_plugin_register_static), (_gst_plugin_initialize):
* gst/gstplugin.h: (GstPluginFilter):
Change API of gst_plugin_register_static() to not take
a GstPluginDesc, but rather just take all the arguments
in a GstPluginDesc directly. This is more intuitive and
avoids certain mistakes when porting code from
GST_PLUGIN_DEFINE_STATIC to gst_plugin_register_static().
Fixes#510187.
* tests/check/gst/gstplugin.c:
Fix up for changed API.
Original commit message from CVS:
* docs/gst/gstreamer-sections.txt:
* gst/gst.c: (init_post):
* gst/gstplugin.c: (_gst_plugin_register_static),
(gst_plugin_register_static), (_gst_plugin_initialize),
(gst_plugin_register_func):
* gst/gstplugin.h: (GST_PLUGIN_DEFINE_STATIC):
API: add gst_plugin_register_static() and deprecate
GST_PLUGIN_DEFINE_STATIC, since it's not portable
(#498924).
Also, in _gst_plugin_register_static(), make sure to call
g_thread_init() before calling GLib functions such as
g_list_append() if we're not initialised yet, since that
may lead to random crashes with older GSlice/GLib versions.
* tests/check/gst/gstplugin.c:
Adapt unit test to above changes.
Original commit message from CVS:
* gst/gst.c: (_gst_disable_segtrap):
Make _gst_disable_segtrap static, it's only used in gstplugin.c and
we can use gst_segtrap_is_enabled() there now that we have that API.
Move _gst_debug_dump_dot_dir into gstdebugutils.c, there's no reason
to do the getenv here (and export the variable).
* gst/gstdebugutils.c: (debug_dump_element),
(_gst_debug_bin_to_dot_file), (_gst_debug_bin_to_dot_file_with_ts):
Don't use VLAs which is a C99ism and throws off MSVC (#493983).
* gst/gstinfo.c: (_priv_gst_info_start_time), (_gst_debug_init),
(gst_debug_log_default):
Rename _gst_info_start_time to priv_gst_info_start_time so it
doesn't get exported (was never in any header).
* gst/gstplugin.c: (_gst_plugin_fault_handler_setup),
(gst_plugin_loading_mutex):
Make static mutex gst_plugin_loading_mutex really static (was never
in any header), and use gst_segtrap_is_enabled() instead of
_gst_disable_segtrap.
* gst/gsttrace.c: (_gst_trace_default):
Make local _gst_trace_default static (was never in any header).
Original commit message from CVS:
* gst/gstplugin.c:
* gst/gstplugin.h:
* gst/gstregistrybinary.c:
* gst/gstregistryxml.c:
Put more strings into the GLib quark table. No need to keep
a hundred-something copies of identical version strings,
license strings, package name strings and package origin
strings around.
Original commit message from CVS:
* gst/gstplugin.c:
Fix docs that mention 'plugin_desc' instead of 'gst_plugin_desc'.
Spotted by Josep Torra Valles <josep@fluendo.com>.
Original commit message from CVS:
* gst/gstplugin.c:
* gst/gstplugin.h:
Add the 3-clause BSD license and the MIT/X11 license to the license
list. Fixes#479784.
Original commit message from CVS:
* gst/gstindexfactory.c: (gst_index_factory_get_type):
* gst/gstplugin.c: (gst_plugin_init):
* gst/gstpluginfeature.c: (gst_plugin_feature_init):
* gst/gstquery.c: (gst_query_get_type):
* gst/gstregistry.c: (gst_registry_init):
* gst/gsturi.c: (gst_uri_handler_base_init):
Remove empty instance_init() functions to save relocs and lessen the
noise. Remove some of the function prototypes that are doubled by
G_DEFINE_TYPE.
Original commit message from CVS:
* gst/gstplugin.c: (gst_plugin_load_file):
If we fail to load a plugin because of unresolved symbols or missing
libraries and spew a warning to stderr, we may just as well mention
which plugin it was that failed to load.
Original commit message from CVS:
* gst/gstplugin.c: gst_plugin_register_func() doesn't actually
do anything with the passed "module" parameter, so remove it.
Allows removal of additional vestigal code.
Original commit message from CVS:
* gst/gstplugin.c:
Using sigaction should depend on HAVE_SIGACTION, not HAVE_WIN32.
Switch to using g_stat() because it's more portable.
Original commit message from CVS:
* gst/gstplugin.c: (gst_plugin_load_file):
* gst/gstregistry.c: (gst_registry_scan_path_level):
Don't print a g_warning for any failure to load a shared object.
Instead, push this down into gstplugin.c, and warn _only_ if we
failed to open the module (i.e. failure to link).
Avoids warnings on normal, working, non-plugin .so files.
Original commit message from CVS:
* gst/gstplugin.c (gst_plugin_load_file):
* gst/gstregistry.c (GST_CAT_DEFAULT,
gst_registry_lookup_feature_locked, gst_registry_scan_path_level):
Print a g_warning if there was an error when loading a plugins during
registry scan. The shuld help beginners starting with gst-plugin
template.
Original commit message from CVS:
* gst/gstplugin.c:
Restore the previous signal handler for SIGSEGV instead of
setting to default, since we may have stolen it away from
someone. (i.e., Mono)
Original commit message from CVS:
* docs/gst/gstreamer-sections.txt:
* gst/gst.c: (gst_segtrap_is_enabled), (gst_segtrap_set_enabled):
* gst/gst.h:
* gst/gstplugin.c: (_gst_plugin_fault_handler_restore):
Add two functions to check and change the SIGSEGV behaviour
when loading plugins.
Don't mess with the SIGSEGV handler when we were told not to.
Fixes#347794.
API: gst_segtrap_is_enabled
API: gst_segtrap_set_enabled
Original commit message from CVS:
Patch by: Paolo Borelli <pborelli at katamail dot com>
* gst/gstplugin.c: (gst_plugin_finalize), (gst_plugin_class_init),
(gst_plugin_check_license):
minor clean-ups: G_DEFINE_TYPE already takes care of the
parent_class stuff, no need to do it twice. Mark array of
license strings as constant. (#337103)
Original commit message from CVS:
* gst/base/gstbasesink.c: (gst_base_sink_handle_object):
Make sure the GstFlowReturn is returned.
* gst/gstbus.c: (gst_bus_add_signal_watch_full),
(gst_bus_add_signal_watch):
* gst/gstbus.h:
add gst_bus_add_signal_watch_full.
* gst/gstplugin.c: (gst_plugin_load_file):
Small style cleanup.
Original commit message from CVS:
* gst/gstplugin.c: (gst_plugin_finalize), (gst_plugin_load_file):
* gst/gstplugin.h:
* gst/gstregistry.c: (gst_registry_lookup_locked),
(gst_registry_scan_path_level):
* gst/gstregistryxml.c: (load_plugin):
Only ever load one plugin for a given plugin basename.
This ensures correct overriding of GST_PLUGIN_PATH over
GST_PLUGIN_SYSTEM_PATH and of home dir plugins over
system installed plugins.
Original commit message from CVS:
* gst/gsterror.c: (_gst_stream_errors_init):
Add another error string used in a few existing plugins.
* gst/gstplugin.c:
* gst/gstpluginfeature.c: (gst_plugin_feature_load):
* tools/gst-inspect.c: (print_element_info):
When a feature disappears from a plugin (and the feature exists in
the cached registry file), things went horribly wrong. This isn't a
complete fix, we should actually be removing the 'missing' features
from the features list when we load the actual plugin. That's not
yet implemented.
Original commit message from CVS:
* gst/gstplugin.c: (gst_plugin_load_file): Make some error messages
more end-user friendly.
* tools/gst-inspect.c: (main): Check if command-line argument is
a file and attempt to load that file as a plugin.
Original commit message from CVS:
* docs/gst/.cvsignore:
* docs/gst/tmpl/.cvsignore:
* docs/gst/tmpl/gstpipeline.sgml:
* docs/gst/tmpl/gstplugin.sgml:
* gst/gstpipeline.c:
* gst/gstplugin.c:
* gst/gstplugin.h:
inlined the last two docs files
removed the tmpl directory from cvs (no more conflicts here!)
Original commit message from CVS:
* docs/gst/Makefile.am: Ignore a few more internal headers
* docs/gst/gstreamer-docs.sgml: Remove old sections
* docs/gst/gstreamer-sections.txt: Remove old sections
* docs/gst/tmpl/gstobject.sgml: update
* docs/gst/tmpl/gstplugin.sgml: update
* docs/gst/tmpl/gstpluginfeature.sgml: update
* docs/random/ds/0.9-suggested-changes: update.
* gst/Makefile.am: remove memchunk and trashstack, since they're
not used.
* gst/gst.c: (gst_deinit): rename gst_registry_deinit to _cleanup
* gst/gst.h: don't include some headers
* gst/gstchildproxy.c: add gstmarshal.h
* gst/gstclock.c: Don't use memchunks
* gst/gstminiobject.c: Add some docs
* gst/gstobject.c: remove DESTROYED flag, since it's redundant
* gst/gstobject.h: same
* gst/gstplugin.c: include gstmacros.h
* gst/gstplugin.h: don't include gstmacros.h, since it's private
* gst/gstquery.c: don't use memchunks
* gst/gstregistry.c: rename gst_registry_deinit()
* gst/gstregistry.h: same
Original commit message from CVS:
don't complain about my ARM .so files. Another reason why it does make sense
to have plugins follow a standard file name pattern like libgst(whatever).so
Original commit message from CVS:
* check/Makefile.am:
re-enable tests now that leaks are plugged
* check/gst/gst.c:
* check/gst/gstbin.c:
* check/gst/gstpipeline.c:
add some more tests while fixing leaks
* common/check.mak:
make sure binaries are uptodate when valgrinding/gdbing
* gst/gst.c:
* gst/gstelementfactory.c:
remove a ref too many, and add a FIXME for when we get
round to disposing of classes
* gst/gstplugin.c:
fix the refcounting when loading a plugin from a file and
the code pretends that the pointer is the same even though
of course it can change
* gst/gstpluginfeature.c:
unref plugins marked cached (a bit confusing as a name)
as the docs state should be done
various doc additions to explain refcounting
* gst/gstregistry.c:
* gst/gstregistryxml.c:
debugging
Original commit message from CVS:
* check/gst/gstplugin.c:
* gst/gstelementfactory.c:
* gst/gstplugin.c:
* gst/gstpluginfeature.c:
* gst/gstregistry.c:
Getting tired of debugging. Disabled all the unreffing of
plugins and features, which fixes the segfaults, but of
course leaks like crazy. At least playbin works.
Original commit message from CVS:
* gst/gstplugin.c: Implement semi-decent recounting and locking
in plugins and plugin features.
* gst/gstplugin.h:
* gst/gstpluginfeature.c:
* gst/gstpluginfeature.h:
* gst/gstregistry.c:
Original commit message from CVS:
* check/Makefile.am:
* check/generic/states.c:
* gst/Makefile.am:
* gst/gst.c:
* gst/gst.h:
* gst/gst_private.h:
* gst/gstelementfactory.c:
* gst/gstindex.c:
* gst/gstinfo.c:
* gst/gstplugin.c:
* gst/gstplugin.h:
* gst/gstpluginfeature.c:
* gst/gstpluginfeature.h:
* gst/gstregistry.c:
* gst/gstregistry.h:
* gst/gstregistrypool.c: remove
* gst/gstregistrypool.h: remove
* gst/gsttypefind.c:
* gst/gsttypefindfactory.c:
* gst/gsturi.c:
* tools/Makefile.am:
* tools/gst-compprep.c:
* tools/gst-inspect.c:
* tools/gst-register.c: remove
* tools/gst-xmlinspect.c:
Registry rewrite. Changes registry from being a file created
by a tool into a simple cache file created automatically by
libgstreamer. Removed gst-register (because it's no longer
needed). Remove registry pools, because we only have one
registry implementation (XML). Fix up other subsystems as
necessary.
Original commit message from CVS:
* gst/gstplugin.c: (gst_plugin_load_file):
Call g_module_close when we don't load the module
* gst/registries/gstlibxmlregistry.c:
(gst_xml_registry_get_property):
Port leak fix from 0.8
Original commit message from CVS:
add a source plugin description field, to represent the source
module this plugin is a part of. By default GST_PLUGIN_DEFINE
will set it to PACKAGE, which is automake's idea of the name of
the source project.
Original commit message from CVS:
* check/Makefile.am:
* check/generic/states.c: (GST_START_TEST), (states_suite), (main):
add a test that does a bunch of state changes on elements
needs some fixing for valgrind
* check/states/sinks.c: (gst_object_suite):
whitespace
* gst/gstcaps.h:
add prototype for gst_caps_is_equal_fixed
* gst/gstplugin.c:
* gst/gstregistrypool.c:
doc fixes
Original commit message from CVS:
* gst/gstplugin.c: (gst_plugin_check_module),
(gst_plugin_check_file), (gst_plugin_load_file):
apply patch from #172526 to make register work on MacOSX
Original commit message from CVS:
* gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active),
(gst_pad_set_checkgetrange_function),
(gst_pad_link_check_compatible_unlocked), (gst_pad_link_prepare),
(gst_pad_check_pull_range), (gst_pad_pull_range),
(gst_static_pad_template_get_caps), (gst_pad_start_task),
(gst_pad_pause_task), (gst_pad_stop_task):
* gst/gstplugin.c: (gst_plugin_load):
* gst/gstplugin.h:
Remove gst_library_load as it does more harm than good with
the new g_module flags.
Revert bogus caps template check in pad linking, pad caps
are important when linking not the template, which is more
general than the current caps.
Original commit message from CVS:
* gst/gstplugin.c: (gst_plugin_check_file), (gst_plugin_load_file):
Switch to using G_MODULE_BIND_LOCAL, which means plugins are now
expected to link against libgstreamer.
* gst/base/Makefile.am: link against libgstreamer
* gst/elements/Makefile.am: same
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/gstplugin.c:
document gst_library_load a bit more (riff special case + return value if already loaded)
* testsuite/bytestream/filepadsink.c:
plugin name is 'gstbytestream', not 'bytestream'
Original commit message from CVS:
* gst/gstpad.c: (gst_pad_set_explicit_caps):
check that caps are fixed
* gst/gstpad.c: (gst_pad_template_new):
don't try to simplify caps, costs too much time on gst_init
* gst/gstplugin.c: (gst_plugin_add_feature):
G_ERROR if features are added twice
* gst/gsttypefind.c: (gst_type_find_register):
* gst/gstelementfactory.c: (gst_element_register):
don't add features twice
* docs/random/ds/0.9-suggested-changes:
add note about possible gst_init optimization
Original commit message from CVS:
A bunch of portability fixes, derived from Steve Lhomme's MSVC
patch (bug #141317):
* gst/gst-i18n-lib.h: Allow disabling gettext.
* gst/gstatomic_impl.h: disable warning when it's dumb.
* gst/gstclock.c: fix include
* gst/gstcompat.h: fix variadic macro
* gst/gstinfo.c: fix include
* gst/gstmacros.h: add defines for inlines on MSVC
* gst/gstplugin.c: fix includes
* gst/gstregistry.c: fix includes
* gst/gstregistry.h: use S_IREAD, etc., if S_IRUSR isn't defined
* gst/gstsystemclock.c: fix include
* gst/gsttrace.c: (gst_trace_new), (gst_trace_text_flush): use
S_IREAD if S_IRUSR isn't defined. fix use of non-portable functions
* gst/registries/gstxmlregistry.c:
(gst_xml_registry_parse_element_factory): fix use of non-portable
functions
* libs/gst/control/dparam.h: Remove trailing comma in enum definition
* libs/gst/control/dparammanager.h: same
Original commit message from CVS:
* gst/gstplugin.c: (_gst_plugin_fault_handler_restore),
(_gst_plugin_fault_handler_setup): Disable more stuff on
Windows.
Original commit message from CVS:
2004-02-20 Andy Wingo <wingo@pobox.com>
* gst/gstbin.c:
* gst/gstbuffer.c:
* gst/gstplugin.c:
* gst/registries/gstxmlregistry.c:
* gst/schedulers/gstoptimalscheduler.c: Debugging tweaks.
* gst/gstelement.c (gst_element_set_scheduler): Debugging fixes.
(gst_element_add_pad): DEBUG->INFO, some fixes.
(gst_element_get_compatible_pad_template): Just see if the
templates' caps intersect, not if one is a strict subset of the
other. This conforms more to what gst_pad_link_intersect() does.
(gst_element_class_add_pad_template): Don't memcpy the pad
template, just ref it.
(gst_element_get_compatible_pad_filtered): Clean up debug messages
* gst/gstpad.c (gst_pad_can_link_filtered): Debug a true result.
(gst_pad_link_filtered): Debug changes.
(gst_pad_link_prepare): New function, consolidated from
can_link_filtered and link_filtered.
* gst/parse/grammar.y (gst_parse_perform_link): Made INFO output
look more like that of the functions in gstelement.c
* gst/gstinfo.c (gst_debug_print_object): Put a space before the
object, and return the empty string if object is NULL.
* gst/parse/parse.l: Remove trailing newlines when calling PRINT.
* gst/parse/grammar.y (YYFPRINTF): Log bison debugging info via
LOG, not DEBUG. We still get flex info on debug.
* gst/registries/gstxmlregistry.c (gst_xml_registry_load): Make
debug string more verbose.
(plugin_times_older_than): DEBUG->LOG.
Original commit message from CVS:
2004-01-26 Benjamin Otte <in7y118@public.uni-hamburg.de>
* gst/gstelement.h:
remove gst_element_factory_get_version. It doesn't exist anymore.
* gst/gstplugin.c:
* gst/gstplugin.h:
remove gst_plugin_set_name and change gst_plugin_get_longname to
gst_plugin_get_description to match code.
* gst/gsterror.h:
remove GST_LIBRARY_ERROR_ENCODE. It's GST_STREAM_ERROR_ENCODE.
* gst/gstpad.c: (gst_pad_try_set_caps):
make it work with nonfixed caps.
Note that even in the nonfixed case the link function of the pad
that tries to set caps isn't called.
Original commit message from CVS:
Fixed shell in docs/gst/Makefile.am and docs/libs/Makefile.am so that
it works with Solaris /bin/sh. Fixed gst/gstplugin.c so it compiles
properly when the configure --disable-gst_debug option is used.
Fixed gst/parse/Makefile.am so that it doesn't append grammar.tab.h to
the end of lex._gst_parse_yy.c since lex._gst_parse_yy.c already
includes grammar.tab.h via a <#include ...> line.
