_get_range() is a pad function set by ourselves, therefore we're certain that
the parent is a GstBaseSrc.
Speeds up _get_range by 38%, and the total call by 30%. (valgrind instruction
calls measurements).
Fixes#610246
Updating the segment values must only be done while holding the
STREAM_LOCK and OBJECT_LOCK. This means, reading can be done as
long as one of them is held, not both, which removes some lock-unlock
blocks from performance critical code paths.
Also document, that gst_base_src_set_format() *must* be called in
states <= READY and add an assertion for this. Changing the format
later will completely mess up the segment information.
Set the pad flushing and stop the pad task when the initial seek fails
during activation. Avoids racy calls into the _create() function when
BaseSrc::stop() has already run.
Fixes: #603059
Also, fix some misspelled comments.
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.
When we quickly switch from PLAYING to PAUSED and back to PLAYING it's possible
in some cases that the task refuses to start, This is because when we go to
PAUSED, we unschedule the clock timeout, which could return UNSCHEDULED when
we're back to PLAYING, causing the task to PAUSE again with a wrong-state.
This patch checks if we are running when we return with an UNSCHEDULED return
value and if we are, try to create a new buffer.
Fixes#597550
In most places in core and baseclasses we just need the caps to do caps-
intersections. In that case ref'ed caps are enough (no need to copy).
This patch also switches the code to use the new functions.
API: gst_pad_get_caps_refed(), gst_pad_peer_get_caps_refed()
Return FALSE in basesrc's default query handler when we get a SEEKING query for
a format that's not the one the source operates in. Previously (ie. before, in
the git version) we would return TRUE in that case and seekable=FALSE, which
is more correct, but causes backwards compatibility problems. (Before that
we would change the format of the query when answering, which was completely
broken since callers don't expect that or check for it). Since the SEEKING
query is a fairly recent addition, not all demuxers, parsers and decoders
implement it yet, in which case any SEEKING query by an application will
just be passed upstream where it will then be handled by basesrc. Now, if
e.g. totem does a SEEKING query for TIME format and we have a demuxer that
doesn't implement the query, basesrc would answer it with seekable=FALSE in
most cases, and totem can only take that as authoritative answer, not knowing
that the demuxer doesn't implement the SEEKING query. To avoid this, we make
basesrc return FALSE to SEEKING queries in unhandled formats. That way
applications like totem can fall back on assuming seekability depending on
whether a duration is available, or somesuch. Downstream elements doing
such queries are likely to equate an unhandled query with a non-seekable
response as well, so this should be an acceptable fix for the time being.
See #584838, #588944, #589423 and #589424.
Original commit message from CVS:
* gst/gstbin.c: (bin_handle_async_start),
(gst_bin_handle_message_func), (gst_bin_query):
* libs/gst/base/gstbasesink.c: (gst_base_sink_render_object),
(gst_base_sink_event), (gst_base_sink_change_state):
* libs/gst/base/gstbasesrc.c: (gst_base_src_perform_seek),
(gst_base_src_loop), (gst_base_src_change_state):
Copy seqnums from events to messages so that they can all be related
back to eachother.
Original commit message from CVS:
* libs/gst/base/gstbasesrc.c: (gst_base_src_default_do_seek);
Remove duplicated assignment and log a message in failure case.
Original commit message from CVS:
* docs/design/part-negotiation.txt:
Small doc update.
* docs/libs/gstreamer-libs-sections.txt:
* libs/gst/base/gstbasesink.c: (gst_base_sink_class_init),
(gst_base_sink_pad_getcaps), (gst_base_sink_pad_setcaps),
(gst_base_sink_init), (gst_base_sink_set_blocksize),
(gst_base_sink_get_blocksize), (gst_base_sink_set_property),
(gst_base_sink_get_property), (gst_base_sink_needs_preroll),
(gst_base_sink_loop), (gst_base_sink_pad_activate),
(gst_base_sink_negotiate_pull), (gst_base_sink_pad_activate_pull),
(gst_base_sink_change_state):
* libs/gst/base/gstbasesink.h:
Add blocksize property and methods to control the amount of data
to pull.
Negotiate first before activating upstream in pull mode so that they can
negotiate themselves.
When we operate in pull mode, we only accept the caps that we
negotiated.
Make the sink go ASYNC to PAUSED, like all other sinks.
API: GstBaseSink::gst_base_sink_set_blocksize()
API: GstBaseSink::gst_base_sink_get_blocksize()
API: GstBaseSink::blocksize
* libs/gst/base/gstbasesrc.c: (gst_base_src_wait_playing),
(gst_base_src_set_live), (gst_base_src_is_live),
(gst_base_src_set_format), (gst_base_src_query_latency),
(gst_base_src_set_blocksize), (gst_base_src_get_blocksize),
(gst_base_src_set_do_timestamp), (gst_base_src_get_do_timestamp),
(gst_base_src_set_property), (gst_base_src_get_property):
* libs/gst/base/gstbasesrc.h:
Add typechecking in public API functions.
Add methods to control the blocksize in subclasses.
API: GstBaseSrc::gst_base_src_set_blocksize()
API: GstBaseSrc::gst_base_src_get_blocksize()
Original commit message from CVS:
* libs/gst/base/gstbasesrc.c: (gst_base_src_default_negotiate):
Use the result from gst_pad_set_caps() instead of assuming the element
always accepted the caps computed by the default negotiate function.
Original commit message from CVS:
Based on patch by: Bjarne Rosengren <bjarne at axis dot com>
* libs/gst/base/gstbasesrc.c: (gst_base_src_send_event),
(gst_base_src_get_range), (gst_base_src_pad_get_range),
(gst_base_src_loop), (gst_base_src_set_flushing),
(gst_base_src_change_state):
Make sending an EOS event to the basesrc non-blocking even if the
implementation does blocking waits in the create function. This is done
by unlocking the create function when EOS is sent.
Fixes#535218.
Original commit message from CVS:
* libs/gst/base/gstbasesrc.c: (gst_base_src_start):
Use right error code when typefinding fails, so we can use
the default (translated) error messages.
Original commit message from CVS:
* libs/gst/base/gstbasesrc.c: (gst_base_src_get_range),
(gst_base_src_start):
When the subclass did not set caps on outgoing buffers, configure the
caps we negotiated on the source pad.
When the typefind helper does not find caps, error out properly instead
of doing things with NULL caps.
Original commit message from CVS:
* docs/design/part-buffering.txt:
Fix some typos and set the estimated total for push mode to -1.
* gst/gstquery.c: (gst_query_new_buffering):
Set buffering-left to 0 as we're not buffering by default.
* libs/gst/base/gstbasesrc.c: (gst_base_src_default_query):
Implement BUFFERING query.
Original commit message from CVS:
* libs/gst/base/gstbasesrc.c: (gst_base_src_perform_seek),
(gst_base_src_loop):
The start segment for reverse playback goes from start to last_stop.
Original commit message from CVS:
* libs/gst/base/gstbasesrc.c: (gst_base_src_default_do_seek),
(gst_base_src_loop):
Don't update the last_stop position in do_seek, that's the position we
did a seek to.
Read backwards when we have a negative rate.
* tests/check/elements/filesrc.c: (event_func), (wait_eos),
(setup_filesrc), (cleanup_filesrc), (GST_START_TEST),
(filesrc_suite):
Add check for reverse reading.
Original commit message from CVS:
* libs/gst/base/gstbasesrc.c: (gst_base_src_send_event),
(gst_base_src_get_range), (gst_base_src_pad_get_range),
(gst_base_src_loop), (gst_base_src_set_flushing),
(gst_base_src_change_state):
Allow sending EOS to the source to make it send out an EOS event from
the streaming thread.
Update docs and deprecate the old NULL/READY shutdown method.
* tests/check/libs/basesrc.c: (GST_START_TEST),
(gst_basesrc_suite):
Add unit test for controlled shutdown.
Original commit message from CVS:
* libs/gst/base/gstbasesrc.c: (gst_base_src_wait_playing),
(gst_base_src_perform_seek), (gst_base_src_get_range),
(gst_base_src_set_playing), (gst_base_src_change_state):
Make _wait_playing() not check any variables so that we can call this
function from subclasses. Move the checks elsewhere similar to
_wait_preroll() in basesink.
Add some debugging.
Only signal the LIVE cond when we are going back to PLAYING.
Original commit message from CVS:
* libs/gst/base/gstbasesrc.c: (gst_base_src_default_query),
(gst_base_src_perform_seek), (gst_base_src_default_event),
(gst_base_src_set_flushing), (gst_base_src_activate_push),
(gst_base_src_activate_pull):
Unify flushing code, remove some old unlock code that is no longer used.
Take the streaming lock when seeking to avoid races. Fixes#492729.
Added some more comments.
Original commit message from CVS:
* libs/gst/base/gstbasesrc.c: (gst_base_src_wait_playing),
(gst_base_src_set_live), (gst_base_src_is_live),
(gst_base_src_query_latency), (gst_base_src_perform_seek),
(gst_base_src_default_event), (gst_base_src_wait),
(gst_base_src_do_sync), (gst_base_src_get_range),
(gst_base_src_pad_get_range), (gst_base_src_loop),
(gst_base_src_unlock), (gst_base_src_unlock_stop),
(gst_base_src_set_flushing), (gst_base_src_set_playing),
(gst_base_src_activate_push), (gst_base_src_activate_pull),
(gst_base_src_change_state):
Rework the locking of basesrc in a similar fashion to basesink. We
basically have one lock (LIVE_LOCK) protecting the dataflow. This allows
us to handle live sources and semi live ones much better.
Simplify flushing.
Fix unlocking when seeking, shutting down and pausing in live sources.
Original commit message from CVS:
* libs/gst/base/gstbasesrc.c: (gst_base_src_do_sync),
(gst_base_src_get_range), (gst_base_src_change_state):
Call unlock for live sources so that they can't get stuck in _create and
produce a buffer before they are set back to PLAYING.
Original commit message from CVS:
* libs/gst/base/gstbasesrc.c: (gst_base_src_change_state):
Also initialize the counter that calculates the first timestamp on a
buffer correctly for non-live sources.
Original commit message from CVS:
* libs/gst/base/gstbasesrc.c: (gst_base_src_send_event):
Push OOB events downstream when we get them in send_event. This allows
the application to insert events in the pipeline.
Add some more comments.
Original commit message from CVS:
* libs/gst/base/gstbasesrc.c: (gst_base_src_query_latency),
(gst_base_src_do_sync), (gst_base_src_change_state):
Update docs.
Clean up the timestamping and syncing code for pseudo live sources.
Original commit message from CVS:
* docs/design/part-live-source.txt:
Add docs on how live sources should timestamp.
* libs/gst/base/gstbasesrc.c: (gst_base_src_do_sync):
Add some more debug info.
For subclasses that are live and like to sync, add aditional startup
latency to sync time and timestamps so that we timstamp according to the
design doc.
Original commit message from CVS:
* libs/gst/base/gstbasesrc.c: (gst_base_src_class_init),
(gst_base_src_init), (gst_base_src_set_do_timestamp),
(gst_base_src_get_do_timestamp), (gst_base_src_set_property),
(gst_base_src_get_property), (gst_base_src_do_sync):
* libs/gst/base/gstbasesrc.h:
Add property to make the basesrc timestamp buffers based on the current
running time.
API: GstBaseSrc::do-timestamp
API: gst_base_src_set_do_timestamp()
API: gst_base_src_get_do_timestamp()
Original commit message from CVS:
* libs/gst/base/gstbasesink.c: (gst_base_sink_loop):
Improve debugging.
* libs/gst/base/gstbasesrc.c: (gst_base_src_query_latency),
(gst_base_src_default_query), (gst_base_src_wait),
(gst_base_src_do_sync), (gst_base_src_change_state):
Rearrange some code so that we can add support for measuring the
startup latency.
Original commit message from CVS:
* docs/libs/gstreamer-libs-sections.txt:
* libs/gst/base/gstbasesrc.c: (gst_base_src_query_latency),
(gst_base_src_default_query), (gst_base_src_get_range):
* libs/gst/base/gstbasesrc.h:
API: gst_base_src_query_latency(). Added method so that subclasses can
easily get the latency values of the base source class.
Original commit message from CVS:
* docs/libs/gstreamer-libs-sections.txt:
* libs/gst/base/gstbasesrc.c: (gst_base_src_class_init),
(gst_base_src_default_prepare_seek_segment),
(gst_base_src_prepare_seek_segment), (gst_base_src_perform_seek):
* libs/gst/base/gstbasesrc.h:
Allow basesrc derived classes to execute seeks in other formats
by providing a prepare_seek_segment vmethod. Sub-classes can choose
to prepare the GstSegment in any format that their perform_seek method
will be able to understand. The default implementation provides the
old behaviour of attempting to convert the seek offsets to the
configured native format.
Original commit message from CVS:
* libs/gst/base/gstbasesrc.c: (gst_base_src_get_range),
(gst_base_src_loop):
Only push the segment events in the PLAYING state for live sources.
Original commit message from CVS:
* libs/gst/base/gstbasesrc.c: (gst_base_src_get_range):
Handle errors from the clock sync better, only UNSCHEDULED indicates a
WRONG_STATE and can silently pause the task. All other cases should
error out.
Original commit message from CVS:
* libs/gst/base/gstbasesink.c: (gst_base_sink_set_flushing),
(gst_base_sink_change_state):
* libs/gst/base/gstbasesink.h:
* libs/gst/base/gstbasesrc.c: (gst_base_src_perform_seek),
(gst_base_src_default_event), (gst_base_src_unlock_stop),
(gst_base_src_deactivate):
* libs/gst/base/gstbasesrc.h:
Add ::unlock_stop to basesrc and basesink. This allows an opportunity
for sub-classes to correctly clear any state they set trying to
unlock, such as clearing out unlock commands from a command fd.
* plugins/elements/gstfdsink.c: (gst_fd_sink_class_init),
(gst_fd_sink_render), (gst_fd_sink_unlock),
(gst_fd_sink_unlock_stop):
* plugins/elements/gstfdsrc.c: (gst_fd_src_class_init),
(gst_fd_src_init), (gst_fd_src_unlock), (gst_fd_src_unlock_stop),
(gst_fd_src_create), (gst_fd_src_get_size), (gst_fd_src_do_seek):
Implement unlock_stop in fdsrc and fdsink.
Implement seeking in fdsrc when a seekable fd is passed, as in
gst-launch-0.10 fdsrc ! ... ! xvimagesink < /path/to/file
Original commit message from CVS:
2007-01-12 Andy Wingo <wingo@pobox.com>
* libs/gst/base/gstbasetransform.c (_GstBaseTransformPrivate):
(gst_base_transform_init, gst_base_transform_sink_activate_push)
(gst_base_transform_src_activate_pull):
Track the activation mode.
(gst_base_transform_setcaps): In pull mode, when activating the
src pad, after activating the sink pad, activate the sink pad's
peer, as discussed in part-negotiation.txt.
* libs/gst/base/gstbasesrc.h:
* libs/gst/base/gstbasesrc.c (gst_base_src_fixate): Add fixate
vmethod, as in basesink.
* libs/gst/base/gstbasesink.h: Reformat docs, add fixate vmethod.
* libs/gst/base/gstbasesink.c (gst_base_sink_pad_setcaps): In pull
mode, first proxy the setcaps to the peer pad.
(gst_base_sink_pad_fixate): Add a fixate function that calls the
new fixate vmethod.
(gst_base_sink_default_activate_pull): Rename from
gst_base_sink_activate_pull.
(gst_base_sink_negotiate_pull): New function, performs negotiation
in pull mode before calling ::activate_pull().
(gst_base_sink_pad_activate_pull): Actually call the activate_pull
vmethod instead of the default implementation. I have no idea how
this worked before. Negotiate before calling activate_pull.
Original commit message from CVS:
* libs/gst/base/gstbasesrc.c: (gst_base_src_activate_push):
Change some GST_ERROR_OBJECT that aren't really errors to
GST_WARNING_OBJECT in order to reduce terminal spam.
Original commit message from CVS:
Patch by: Jonathan Matthew <jonathan at kaolin dot wh9 dot net>
* libs/gst/base/gstbasesrc.c: (gst_base_src_update_length):
Store new length in segment duration so we don't keep on calling the
potentially expensize get_size() call. Fixes#370865.
Original commit message from CVS:
* docs/random/moving-plugins:
Make it clear that the "compiled-in descriptions" really mean
the element details.
* libs/gst/base/gstbasesink.c: (gst_base_sink_commit_state),
(gst_base_sink_wait_preroll):
Update docs.
* docs/libs/gstreamer-libs-sections.txt:
* libs/gst/base/gstbasesrc.c: (gst_base_src_wait_playing),
(gst_base_src_get_range), (gst_base_src_activate_push):
* libs/gst/base/gstbasesrc.h:
Added function to block while waiting for PLAYING, this function
is used by live sources that block on the clock.
API: gst_base_src_wait_playing()
Original commit message from CVS:
Based on patch by: Antoine Tremblay <hexa00 at gmail dot com>
* libs/gst/base/gstbasesrc.c:
(gst_base_src_default_check_get_range), (gst_base_src_start),
(gst_base_src_activate_push), (gst_base_src_activate_pull),
(gst_base_src_change_state):
Match _start/_stop calls in the activate functions. Remove redundant
_stop call from the state change function. Fixes#356910.
Turn failure DEBUG into ERROR.
Original commit message from CVS:
* gst/gstelement.c: (gst_element_post_message),
(gst_element_dispose):
Use _DEBUG_OBJECT some more.
* libs/gst/base/gstbasesrc.c: (gst_base_src_loop):
Avoid typechecks.
* tools/gst-launch.c: (main):
If the toplevel element is not a GstPipeline, it must be put in a
pipeline so that a bus and clock is selected.
Original commit message from CVS:
* libs/gst/base/gstbasesrc.c: (gst_base_src_default_query):
JITTER, RATE, and LATENCY query should be handled by the
default case and not by the CONVERT query code.
Original commit message from CVS:
* libs/gst/base/gstbasesrc.c: (gst_base_src_perform_seek):
Small comment update.
* plugins/elements/gstidentity.c: (gst_identity_class_init),
(gst_identity_transform_ip):
Drop-probability is broken, mention this in the code with a
FIXME and also in the property description.
Make silent also be silent about the drop messages.
Original commit message from CVS:
* libs/gst/base/gstbasesrc.c: (gst_base_src_change_state):
If the parent state change function failed, don't assume we can safely
stop the source, this will be done when the pads are deactivated.
Original commit message from CVS:
* libs/gst/base/gstbasesrc.c: (gst_base_src_update_length):
* tests/check/elements/filesrc.c: (GST_START_TEST):
Revert fix for regression in #347408 after release.
Original commit message from CVS:
* libs/gst/base/gstbasesrc.c: (gst_base_src_class_init),
(gst_base_src_wait), (gst_base_src_update_length),
(gst_base_src_get_range), (gst_base_src_default_check_get_range),
(gst_base_src_check_get_range), (gst_base_src_pad_check_get_range),
(gst_base_src_loop), (gst_base_src_start),
(gst_base_src_activate_pull):
Update docs.
blocksize == 0 now means the default blocksize when working in push
based mode.
Remove some pointless asserts in _wait function.
Fix offset/length calculations and EOS handling. We can now pull 0
bytes as well, which is allowed.
use _check_get_range() to decide if we can operate in _pull based
mode.
Fix refcounting leak when check_get_range function was not
implemented.
API GstBaseSrc::blocksize range can be 0 too now (default)
* tests/check/elements/filesrc.c: (GST_START_TEST),
(filesrc_suite):
Added check to test _get_range() behaviour.
Original commit message from CVS:
* gst/gstcaps.c: (gst_caps_replace):
Fix crasher when passed NULL. Doc clarification.
Optimize for the trivial case.
* gst/gstpipeline.c: (gst_pipeline_change_state):
Small cleanups.
* libs/gst/base/gstbasesrc.c: (gst_base_src_loop):
Small documentation cleanup.
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_buffer_alloc):
Don't use silly gst_pad_get_negotiated_caps, GST_PAD_CAPS
is what we need and it avoids a whole lot of redundant
refcount operations.
Original commit message from CVS:
Patch by: Lutz Mueller <lutz at topfrose dot de>
* libs/gst/base/gstbasesrc.c: (gst_base_src_class_init),
(gst_base_src_get_query_types), (gst_base_src_update_length):
Publish supported query types.
Update last_stop field in get_range mode so the position
query works. Fixes#342321.
Original commit message from CVS:
* libs/gst/base/gstbasesrc.c: (gst_base_src_perform_seek),
(gst_base_src_loop), (gst_base_src_change_state):
Always push non-flushing serialized events in the streaming
thread.
Original commit message from CVS:
* libs/gst/base/gstbasesink.c: (gst_base_sink_configure_segment):
Add applied_rate to the debug
* libs/gst/base/gstbasesrc.c: (gst_base_src_perform_seek):
Copy applied_rate into the outgoing NEWSEGMENT event
Original commit message from CVS:
* libs/gst/base/gstbasesrc.c: (gst_base_src_loop):
Unify error handling, don't post an error message
when a push() returns EOS but perform our normal EOS
handling code. Fixes#340772.
Original commit message from CVS:
Patch by: James Andrewartha <trs80 at tartarus uwa edu au>
* gst/gst.c:
* gst/gstbus.c:
* gst/gstclock.c:
* gst/gstevent.c:
* gst/gstformat.c:
* gst/gstmessage.c:
* gst/gstparse.c:
* gst/gstquery.c:
* gst/gstutils.c:
* gst/parse/Makefile.am:
* libs/gst/base/gstadapter.c:
* libs/gst/base/gstbasesrc.c:
* libs/gst/base/gstpushsrc.c:
* libs/gst/base/gsttypefindhelper.c:
* plugins/elements/gstfakesrc.c:
* plugins/elements/gstidentity.c:
Make sure gstprivate.h and/or config.h are
always included first, otherwise some of our
defines (like _FILE_OFFSET_BITS) might be
redefined in the system headers. Fixes build
on opensolaris (#340016).
Original commit message from CVS:
* docs/libs/gstreamer-libs-sections.txt:
* gst/gsttaglist.c:
* libs/gst/base/gstbasesink.c:
* libs/gst/base/gstbasesink.h:
* libs/gst/base/gstbasesrc.c:
* libs/gst/base/gstbasesrc.h:
Documentation updates. Make BaseSink and BaseSrc docs contain the
class structure so that people can actually see the prototypes for
virtual functions they're supposed to be overriding.
Original commit message from CVS:
* libs/gst/base/gstbasesrc.c: (gst_base_src_finalize),
(gst_base_src_send_event), (gst_base_src_loop),
(gst_base_src_change_state):
Perform the EOS logic when we reach the segment stop position.
Fix compilation on gcc4.1
Original commit message from CVS:
Inspired by a patch of: Lutz Mueller <lutz at topfrose dot de>
* libs/gst/base/gstbasesrc.c: (gst_base_src_finalize),
(gst_base_src_send_event), (gst_base_src_change_state):
Handle element seek correctly when we are streaming.
Fixes#326998.
Original commit message from CVS:
* docs/design/part-element-transform.txt:
Added some docs about the design of tranform elements.
* libs/gst/base/gstbasesrc.c: (gst_base_src_perform_seek),
(gst_base_src_loop), (gst_base_src_change_state):
Mark buffers with the DISCONT flag.
Original commit message from CVS:
* docs/libs/gstreamer-libs-sections.txt:
Added basesink new methods.
* gst/gstevent.c:
* gst/gstevent.h:
Docs updates. Flesh out the QoS docs.
* libs/gst/base/gstadapter.c:
Small doc clarification about ownership and flushing.
* libs/gst/base/gstbasesink.c: (gst_base_sink_set_sync),
(gst_base_sink_get_sync), (gst_base_sink_set_max_lateness),
(gst_base_sink_get_max_lateness), (gst_base_sink_set_property),
(gst_base_sink_get_property), (gst_base_sink_do_sync):
* libs/gst/base/gstbasesink.h:
Added new methods to allow subclass to control max-lateness
and sync.
Generate very basic QoS events based on last sync observation.
Updated docs, fix typo, added some QoS blurb.
* libs/gst/base/gstbasesrc.c:
Remove obsolete _get_state() calls from docs.
Original commit message from CVS:
* libs/gst/base/gstbasesrc.c: (gst_base_src_class_init),
(gst_base_src_init), (gst_base_src_pad_check_get_range),
(gst_base_src_default_check_get_range):
* libs/gst/base/gstbasesrc.h:
Add ::check_get_range() vfunc to GstBaseSrc (#332611),
provide default implementation, and rename
gst_base_src_check_get_range() to
gst_base_src_pad_check_get_range() for clarity.
Original commit message from CVS:
* libs/gst/base/gstbasesrc.c: (gst_base_src_class_init),
(gst_base_src_init), (gst_base_src_loop),
(gst_base_src_activate_push), (gst_base_src_activate_pull),
(gst_base_src_change_state):
* libs/gst/base/gstbasesrc.h:
Don't unconditionally send EOS when going from PAUSED to
READY state, esp. make sure we don't send two EOS events
in some cases (e.g. one when reaching EOS and one when
going from PAUSED to READY). Also, we don't want to send
EOS events when operating in pull mode. However, we do
want to send an EOS event when shutting down a live
source explicitly, for example (fixes#330996).
