This is a string describing a date and/or date/time in a simple subset of
the ISO-8601 format, namely either "YYYY-MM-DD" or "YYYY-MM-DDTHH:MMZ" (with
'T' the date/time separator and the 'Z' indicating UTC).
The main purpose of this field is to keep track of plugin and element versions
on an absolute timeline, so it's possible to determine which one is newer when
comparing two date time numbers. This will allow us to express 'replaces'-type
relationships betweeen plugins and element factories in future, even across
different modules and plugin merges or splits (source module version numbers
aren't particularly useful here, since they can only meaningfully be compared
within the same module). It also allows applications and libraries to reliably
check that a plugin is recent enough without making assumptions about modules
or module versions.
We use a string here to keep things simple and clear, esp. on the build system
side of things.
https://bugzilla.gnome.org/show_bug.cgi?id=623040
This changes behaviour slightly in that we no longer output things
via g_printerr(), so any non-standard glib printerr handlers are no
longer called when GST_DEBUG is enabled. However, this seems not
really desirable in most cases anyway, and the GLib docs also say
that libraries should not use g_printerr() for logging.
Other stderr output (e.g. warnings, or application messages) will
of course not be captured in the log file this way.
GST_DEBUG_FILE=- will redirect debug output to stdout.
This is the same behaviour as if we had a pad template caps of
GST_CAPS_ANY on any of the pads (i.e. the actual check will be done
during caps negotiation).
Instead just check that the caps intersect with the pad template.
The elements should properly accept/refuse the caps in setcaps().
Shaves off calling the default implementation of acceptcaps which does
an expensive gst_pad_get_caps() (so if you have 50 of those elements in
a row, you'd be doing factorial(50) gst_pad_get_caps...).
Does not break any module unit test and most apps work fine.
https://bugzilla.gnome.org/show_bug.cgi?id=622740
Make sure clock->clockid is unreffed before clock->master.
gst_clock_id_unschedule (clock->clockid) tries to access clock->master. If
clock->master is unreffed before and it's deallocated, _unschedule could access
free'd memory.
They are actually *not* const functions because on architectures
without int128 instructions the parameters were changed.
gcc re-used the parameters on the stack for multiple calls though
and the changed parameters were used for the second call then.
Fixes bug #623003.
Add a minimal gst_xml_get_type() function, so that gobject-introspection doesn't
break the compilation if we're compiling with GST_REMOVE_DEPRECATED defined or
--disable-loadsave having been passed to configure. Until someone figures out
a better way at least.
Since everything GstXML related has been deprecated, we can now skip the
libxml includes from the public headers when GST_DISABLE_DEPRECATED is
defined.
See #463435.
Pipeline serialisation to and from XML is horribly broken for all
but the most simple use cases, and will likely never be fixed.
Make sure everyone playing around with these tools is aware of
this, to avoid frustration. See countless bug reports in bugzilla.
Fixes bug #622685.
This feature is primarily intended for use in plugin modules' unit tests.
Consider the following situation: gst-plugins-good is built against an
installed GStreamer core. An older version of gst-plugins-good is also
installed in that prefix, along with random other plugin modules. Now,
when doing 'make check' in the just-built gst-plugins-good tree, we
want to only load plugins from GStreamer core, gst-plugins-base, and
gst-plugins-good, but not random other modules (we don't want any unit
tests to fail just because some module in gst-plugins-bad has a broken
plugin_init, for example). Also, we want to only load gst-plugins-good
modules from the locally-built source tree, but not any of the older
gst-plugins-good modules installed. This is usually assured by loading
the ones in the source tree first (by adding that path first to the
right environment variables), but it gets tricky when plugins are
moved, removed, merged, or renamed, or the plugin filename changes.
Note that 'make check' should really work right without doing
'make install' or uninstalling the old gst-plugins-good package (or
any other gst-plugins-foo package) first.
Enter GST_PLUGIN_LOADING_WHITELIST. This environment variable may
contain source-package@path-prefix pairs separated by the platform
search path separator (G_SEARCHPATH_SEPARATOR_S). The source package
and path prefix are separated by the '@' character. The path prefix is
entirely optional, as is the '@' separator if no path is given.
It is also possible to filter based on plugin names instead of the name
of the source-package by specifying one or more plugin names separated
by commas before the optional path prefix.
In short, the following match patterns are possible:
plugin1,plugin2@pathprefix or
plugin1,plugin2@* or just
plugin1,plugin2 or
source-package@pathprefix or
source-package@* or just
source-package
So for our gst-plugins-good unit test example above, we would set the
environment variable on *nix to something like this (will likely be a
relative path in practice):
gstreamer:gst-plugins-base:gst-plugins-good@/path/to/src/gst-plugins-good
Fixes#619815 and #619717.
Adds a new tag to inform about the image orientation and how
to rotate and flip it before display.
Note that this tag is a string with a predefined set of
possible values.
API: GST_TAG_IMAGE_ORIENTATION
Fixes#619508
Forgot those when adding the original API, just like the API markers
in the commit message:
API: GST_TRACE
API: GST_TRACE_OBJECT
API: GST_CAT_TRACE
API: GST_CAT_TRACE_OBJECT
API: GST_LEVEL_TRACE
Fixes compilation with --disable-gst-debug
A pad is 'negotiable' when its container element is in a state greater
than GST_STATE_READY
API:gst_pad_is_negotiable
API:gst_pad_set_negotiable
API:GST_PAD_NEGOTIABLE
https://bugzilla.gnome.org/show_bug.cgi?id=618644
This allows removing structures from caps without them being freed. Helpful when
plugins need to move around structures without having to do an expensive structure
copy.
API:gst_caps_steal_structure
https://bugzilla.gnome.org/show_bug.cgi?id=621527
The compare function should only unref the element if it's
not the matching element.
Also the FIXME in _fold() is not relevant because the ref/unref
happens in the fold function.
This makes it possible to easily get a *:5 debug log without all
the refcounting noise, and drastically reduces the number of lines
output for a normal log (46m to 28m for a 20min video). The full log
including refcounting information can still be gotten using *:7.
Fixes#620460.
Just truncate and then fixate. We check for empty caps in the begin and a
fixate-func that empties a caps would be broken. It also helps lazy caps impl.
in bug 618853 by avoiding the gst_caps_get_size().
When an error message is received on the bus, mark the bin as being in the error
state and unlock all current _get_state() calls with an error.
Fixes#505770
So we don't crash when a muxer tries to add tags from two
threads at the same time, eg. because it received tag events
on two input pads simultaneously.
See #619533.
We need to check the pad caps on the srcpad as well as on the sinkpad. Revert
this commit as it removes the check on the srcpad and can leave the srcpad
unnegotiated (or negotiated with wrong caps)
This reverts commit 07dc1e5b49.
Adds 3 new geo location tags involving direction and
movement of capture. Those are:
API: GST_TAG_GEO_LOCATION_CAPTURE_DIRECTION
API: GST_TAG_GEO_LOCATION_MOVEMENT_DIRECTION
API: GST_TAG_GEO_LOCATION_MOVEMENT_SPEED
Fixes#617223
Adds those new tags to describe the device manufacturer and
model used to create medias.
API: GST_TAG_DEVICE_MANUFACTURER
API: GST_TAG_DEVICE_MODEL
Fixes#615941
Make sure we execute the same code path in git versions and in releases,
so just warn when metadata isn't writable when we want it to be instead
of bailing out.
People often call
gst_caps_make_writable (caps);
instead of
caps = gst_caps_make_writable (caps);
and cause a bug. Warning about an unused return value helps here.
See https://bugzilla.gnome.org/show_bug.cgi?id=616541#c2 for an example.
This way people can just #define their own custom flow returns to
one of these without having the compiler (esp. gcc-4.5) complain
about comparing integers to an enum or the enum not being listed
Fixes#615880.
API: GST_FLOW_CUSTOM_SUCCESS_1
API: GST_FLOW_CUSTOM_SUCCESS_2
API: GST_FLOW_CUSTOM_ERROR_1
API: GST_FLOW_CUSTOM_ERROR_2
When an element is removed from a bin because it caused a state change error,
don't unref the child twice.
Add some more debug info.
Add a unit test for this error.
Fixes#615756
Fix 'grammar.tab.c:815:6: warning: "YYENABLE_NLS" is not defined'
compiler warning and the same for YYLTYPE_IS_TRIVIAL. The two
translated strings aren't particularly helpful, so just define
YYENABLE_NLS to 0.
Point g-ir-scanner to the .la file of our library, which hopefully
makes it find the right dependencies in all cases (ie. our locally
built libgstreamer and not the system-installed one). This is also
how it's done in Gtk+ and how it's documented in the wiki, see
http://live.gnome.org/GObjectIntrospection/AutotoolsIntegration
Based on patches by Vincent Untz and Alan Knowles.
Fixes#603710.
Adds a new tag for user favorite media rating.
User rating informs how much (from 0 to 100) a user
'likes' a media.
Having an percent uint range for this is easy to map into other scales,
like some players that allow users to attribute 'stars' to its
media.
API: GST_TAG_USER_RATING
Fixes#520697
Use gst_element_class_set_details_simple() instead. If you want to
convert automatically, here's a script:
for file in `git grep -l GstElementDetails`; do
sed -i -n -r '
1h
1!H
$ {
g
s/((\/\*[^\n]*\*\/)?\n)*[^\n]*GstElementDetails .* =\s*GST_ELEMENT_DETAILS\s*\((\"[^\"]*\",\s*\"[^\"]*\",\s*\"[^\"]*\",\s*(\"[^\"]*\"\s*)*)\);\n*(.*)gst_element_class_set_details \(([^,]*),\s*[^)]*\)/\n\n\5gst_element_class_set_details_simple (\6, \3)/
s/((\/\*[^\n]*\*\/)?\n)*[^\n]*GstElementDetails .* =\s*\{\s*(\"[^\"]*\",\s*\"[^\"]*\",\s*\"[^\"]*\",\s*(\"[^\"]*\"\s*)*)\};\n*(.*)gst_element_class_set_details \(([^,]*),\s*[^)]*\)/\n\n\5gst_element_class_set_details_simple (\6, \3)/
p
}' $file
~/gst/gstreamer/tools/gst-indent $file
done
Right now deleyed set would only try for first set of children. We need to keep
trying to support arbitrary deep hierarchies (like in playbin2 with auto*sinks).
Also GstBin would need to actualy emit the child-added/removed signal as it
implements the iface. Fixes#613215.
prctl is supposed to take 5 arguments. It used to work with 2 arguments on some
versions of libc because it is defined as a varags function there.
See #611911
This either must never happen (which makes sense in this case) and thus should
use assert() or we should use a traditional if (poll_data->message) return;
to avoid differnet behaviour of intenal api when compiling with
G_DISABLE_CHECKS.
This avoids creating empty caps and destroying them in the case of an error. We
also avoid double checking in other code path where we call the internal api.
See 8fe63000de for why having a TRUE/FALSE
return value is a bad idea.
I've scanned a few plugins and they generally get it wrong and aren't
unloadable when they return FALSE.
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 brings total call speedups between 5% and 25%.
gst_caps_set_simple_valist: +5%
gst_structure_set_valist: + 10%
gst_structure_id_set_valist: +25%
gst_tag_list_add_valist: +5%
Measured using valgrind when run over the discovery of 200 media files.
Fixes#610256
The alignment guaranteed by malloc is not always sufficient. E.g. vector
instructions or hardware subsystems want specifically aligned buffers. The
attached patch will use posix_memalign if available to allocate buffers.
The desired alignment can be set when running configure using the new
--with-buffer-alignment option.
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
Previous code treated "1/1yourmom" the same as "1/1" and "1wimsmom" the
same as "1". Now the code is stricter and will fail to convert a
fraction when followed by garbage text.
This may cause crashes when logging is enabled, especially on windows.
It's not safe to pass random pointers to g_type_check_instance_is_a().
Fixes#611719.
Add check to make sure gst-plugin-scanner really gets installed where
we will look for it later, ie. paths and prefixes are set at configure
time and not specified via make.
Fixes#609941.
Late g_thread_init() is fine with newer GLib versions and done automatically
from g_type_init() there, so don't warn if the application hasn't called
g_thread_init() yet when gst_init() is called with new GLib versions.
Fixes#608398.
Refactor the code to take the current start_time when going to PAUSED.
Make sure we also call the start_time update code after we chained up to the
parent bin.
Fixes#607842
If the GST_PLUGIN_SCANNER environment variable is set, we should try
the scanner specified there first, to make sure the right scanner binary
is used for uninstalled setups and builds from source when there's
already an installed version.
We require threads to be supported in any case and defining this
will simplify the mutex, condition variable, etc. macros from gthread
to not always check if threads are really supported.
Fixes bug #607481.
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 check is not necesarry as we are not negotiating anymore. And it can
be wrong if upstream can't produce this caps anymore, but downstream can
process them fine.
All callers of this static function already check for NULL-ness
themselves, so no need to do it again (and if we do it, we should
probably do so before dereferencing the pointer for the first time).
Avoid checking the GType of the value twice (once on our side and
once in g_value_get_*()) by by-passing g_value_get() and accessing
the GValue structure directly.
Strings in the binary registry are NUL-terminated, so we can just use them
directly if we only need them temporarily, and avoid unnecessary mallocs
and frees.
No need to call gst_element_link_pads_filtered with filter=NULL, which would
call gst_element_link_pads() in that way. Call it directly to save a call and
expensive gobject type checks.
Fix up translated strings for some recently-added tags to match the
existing strings: we want short mnemonic-like strings here that start
with a lower case letter.
The only reason these two functions are still around is that at some
point in the past they were in a public header, so we can't really
remove them now even though they should have been private all along
(and aren't really particularly useful). Since these are just empty
stubs now that do nothing but return FALSE and will be removed in
0.11 anyway, we may just as well deprecate them formally.
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.
When we unblock a pad with the same user_data, the destroy callback is not
called. This leads to refcounting leaks that cannot be avoided. Instead always
call the destroy notify whenever we install a new pad block.
In particular, this fixes a nasty pad leak in decodebin2.
Also update the unit test to have more accurate comments and test the required
behaviour.
Adds the following new tags:
GST_TAG_SHOW_NAME
GST_TAG_SHOW_SORTNAME
GST_TAG_SHOW_EPISODE_NUMBER
GST_TAG_SHOW_SEASON_NUMBER
GST_TAG_LYRICS
GST_TAG_COMPOSER_SORTNAME
GST_TAG_GROUPING
Fixes#599759
Setting an object name is nice for proper debug logging. Ideally this would
still happens earlier (.e.g when pads are added to an element, its not yet set).
Never skip the state change to playing, even if the element is already in the
right state. We need this because we also distribute the base_time while doing
the state change and skipping this step would leave some elements without a new
base_time.
Fixes#600313
gst_value_list_size and gst_value_list_get_value will do a series of
extra checks due to being public methods.
When we use them from within gstvalue.c we can directly use them without
the extra checks.
