Commit graph

56 commits

Author SHA1 Message Date
Edward Hervey
93e432bccb urisourcebin: Fix issue re-using outputs
When checking whether a no-longer used output could be re-used for another slot,
we only want to do that for streams which are not still used.

Otherwise we end up potentially re-assigning a demuxer stream to a completely
different one

Furthermore, if we *are* re-using an output slot, indicate what the replacement
GstStream will be so slot matching can work properly (which can happen in the
case of demuxers which add/remove all pads even if only a single one changed)

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7949>
2024-12-10 08:47:43 +00:00
Edward Hervey
abb11ad8b4 urisourcebin: Fix collection leak
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/8080>
2024-12-05 09:22:00 +01:00
Edward Hervey
09be1ab863 urisourcebin: Also use event probe for HLS use-cases
Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/3957

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7822>
2024-11-08 09:14:21 +00:00
Edward Hervey
39c770af90 playback: Improve stream list search
There is the possibility than an element/code/helper creates an identical
`GstStream` (same type and stream-id) instance instead of re-using a previous
one.

For those cases, when detecting whether a `GstStream` is already present in a
collection, we need to do more checks than just comparing the pointer.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7716>
2024-10-28 10:09:47 +00:00
Edward Hervey
0fda426656 urisourcebin: Aggregate collections from multiple parsebin
In the case where multiple parsebin are present (ex: from rtsp sources), we want
to aggregate the collections provided by the different parsebin and expose a
single "unified" collection.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7716>
2024-10-28 10:09:47 +00:00
Edward Hervey
189cbe7fdd urisourcebin: Don't remove probe if not present
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7609>
2024-10-18 08:49:50 +00:00
Edward Hervey
b2c0f490f0 urisourcebin: Set pad probe before linking pad
We want to grab all events that pass through, so we need to set the
probe **before** the pad is linked

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7609>
2024-10-18 08:49:50 +00:00
Edward Hervey
c97126212f urisourcebin: Streamline event forwarding code
Instead of two different functions for copying events and rewriting the
stream-start event, just have a single one.

This is needed, since we want to do both of those in one go, with the pad lock
taken.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7609>
2024-10-18 08:49:50 +00:00
Edward Hervey
b21ffc6b9f urisourcebin: Ensure all stream-start are handled
In order to ensure all initial events (stream-start, caps, ..) are present on
pads that we expose, those various sticky events are propagated (from parsebin
to multiqueue output, from multiqueue output to exposed pads).

The problem was that the "hack" in `urisourcebin` to inform downstream elements
that the stream is parsed data and a collection will be present was only done in
one place : a probe on the output of parsebin ... but the stream-start could
potentially have already been propagated to the output pads before that.

In order to fix that, we make sure any pending sticky stream-start event is
updated before being propagated.

Fixes #3788

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7598>
2024-10-02 21:29:00 +00:00
Edward Hervey
32bf29d64d urisourcebin: Allow more cases for posting stream-collection
Previously urisourcebin only allows stream-collections messages from adaptive
demuxers or sources to be posted.

This commit also allows the case where they come from a single parsebin. We
still want to prevent it in the case where they are multiple parsebins, since
that would require some form of aggregation to show a single/unified collection.

In order to avoid a regression with uridecodebin3 behavior, we also implement
support for GST_QUERY_SELECTABLE, so that uridecodebin3 can figure out whether
it should let GST_MESSAGE_STREAM_COLLECTION flow upwards (because app/user could
react on it) or whether it drops it in order for decodebin3 to do the collection
aggregation and posting.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7597>
2024-10-02 19:40:48 +00:00
Edward Hervey
de6de83986 urisourcebin: Actually drop EOS on old-school pad switch
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7375>
2024-08-19 09:49:12 +02:00
Edward Hervey
7546975856 urisourcebin: Don't hold lock when emitting about-to-finish
This could trigger actions that re-enter this element

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7368>
2024-08-17 05:50:26 +00:00
Seungha Yang
b01305f60c decodebin3: Fix caps and stream leaks
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6858>
2024-05-16 10:46:33 +00:00
Edward Hervey
049665ccaa urisourcebin2: Adaptive demuxers don't require another parsebin
By setting the same field on the GST_EVENT_STREAM_START decodebin3 will be able
to avoid plugging in an extra parsebin

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6690>
2024-04-23 07:09:21 +00:00
Edward Hervey
489f310881 urisourcebin: Handle legacy pad replacements from parsebin
When dealing with demuxers which aren't streams-aware, we need to handle the
old-school "stream replacement" dance from `parsebin` and hide that in such a
way that output pads are re-used (if compatible).

By analyzing the collection posted by parsebin, we can:
* Identify whether some output slots are no longer used (because the stream they
  currently handle is not present in the collection)
* Decide if some upcoming streams could re-use the existing slot

This supports both buffering and non-buffering modes.

Fixes #1651

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6201>
2024-02-23 16:05:44 +00:00
Edward Hervey
03f8968119 urisourcebin: Use atomic lock for detecting shutdown
This fixes lock ordering issues

Fixes #3323

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6178>
2024-02-22 18:15:12 +00:00
Edward Hervey
d62c6e1084 urisourcebin: Don't acquire STATE_LOCK if shutting down
If we are shutting down (PAUSED->READY) we shouldn't take the STATE LOCK since
this function is being called from a streaming thread (which is trying to be
deactivated while the STATE LOCK is held)

Fixes #3292

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6121>
2024-02-15 10:09:10 +00:00
Haihua Hu
4e381b8901 playback: Support runtime change connection-speed of adaptivedemux(2)
Update connection-speed at runtime in playbin, uridecodebin and decodebin
also do the same thing in urisourcebin.

With contributions from Philippe Normand <philn@igalia.com> (build fixes and
rebase on mono-repo).

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4713>
2023-10-12 16:06:42 +00:00
Guillaume Desmottes
8263ce2a31 urisourcebin: add 'download-dir' property
The directory were buffers are downloaded was not documented and not
configurable. Users may want to ensure buffers are saved to a specific
partition for example.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5227>
2023-08-23 13:52:19 +00:00
Edward Hervey
9befb81036 urisourcebin: Set source element to READY before querying it
Generating the source element is done when urisourcebin is doing the READY to
PAUSED state change, so it is reasonable to set the new source element to that
state.

This also allows detecting early failures with backing libraries or
hardware (checks done in NULL->READY).

Finally it makes more sense to have an element in READY when attempting to query
information from it (such as SCHEDULING queries or probing live-ness).

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3856>
2023-06-02 07:00:43 +00:00
Edward Hervey
cf3adbcfb3 urisourcebin: Activate pad before transferring sticky events
Otherwise they get refused since the pad is flushing

Fixes #2384 for good

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4226>
2023-03-20 18:11:26 +00:00
Edward Hervey
7f1c5e2ef3 urisourcebin: Propagate sticky events from parsebin
If sticky events are present on parsebin source pads, we propagate them to the
multiqueue source pads. Those will be propagated on the new urisourcebin source
pads like in the other code paths.

This ensures that STREAM_START event are present on new source pads. If CAPS
event are also present (not guaranteed), they will also be available.

Fixes #2384

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4203>
2023-03-17 23:48:43 +00:00
Edward Hervey
4c1d01ff57 playback: New playback elements are no longer experimental
The API is not expected to change and it has been used extensively since 1.18.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3761>
2023-01-21 12:28:21 +00:00
Edward Hervey
1a30ed8113 decodebin3: Don't insert parsebin if input is already parsed
This is a temporary workaround until we find a generic solution to indicate that
a stream has already been "parsed".

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3754>
2023-01-20 08:54:00 +00:00
Edward Hervey
13ad8c8e4e urisourcebin: Cleanup on failure
This ensures there is a source present/valid *ONLY* in PAUSED and above.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3720>
2023-01-13 16:41:53 +01:00
Edward Hervey
1546ab0d0f urisourcebin: Unset locked state
Some elements still had it in failure cases

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3720>
2023-01-13 16:41:53 +01:00
Edward Hervey
6beca9f055 urisourcebin: Fix parsebin handling
The goal of !3601 was to make sure we don't end up with non-streams-aware
adaptive demuxers. Since we know that parsebin is streams-aware, just remember
that and handle them that way.

Fixes issues with some scenarios where parsebin might add pads *before* the
collection is posted on the bus

Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1675

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3658>
2022-12-30 08:46:14 +01:00
Edward Hervey
74a503c197 urisourcebin: Modify check for streams-aware adaptive demuxers
Using the "GstBin" flags to check if an adaptive demuxer is streams-aware isn't
a good idea since it prevents using elements which aren't bins.

Instead we see if a collection was posted by the demuxer by the time a pad is
added.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3601>
2022-12-19 15:23:32 +00:00
Edward Hervey
92abb8daec urisourcebin: Remove un-needed define
This code hasn't use GValueArray in ages

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2784>
2022-11-16 14:01:47 +00:00
Edward Hervey
5702568a7e urisourcebin: Use a non-buffering multiqueue for non-streamable URI
Even though buffering is not required, we need to ensure we are dealing with the
interleave (if any) before pushing the elementary streams further downstream.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2784>
2022-11-16 14:01:47 +00:00
Edward Hervey
c59397354c urisourcebin: Minor doc fix
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2784>
2022-11-16 14:01:47 +00:00
Edward Hervey
412c4cbca3 urisourcebin: Improve buffering handling
Introduce the option to have the streams be parsed with `parsebin` for
compatible sources (i.e. which are eligible for buffering in the same way as
before this commit).

By parsing the inputs directly, this allows more accurate buffering control:
* Instead of relying on potential bitrate information coming from somewhere
* and *without* being linked downstream

If `parse-streams` is activated and the stream is eligible for buffering, then a
`multiqueue` will be used on the output of `parsebin` in order to handle the
buffering.

API: `parse-streams`
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2784>
2022-11-16 14:01:46 +00:00
Edward Hervey
e8f768212c urisourcebin: Bring high-watermark level in sync with legacy values
It was always 60%. For some reason this crept in during the initial urisourcebin
refactoring.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2784>
2022-11-16 14:01:46 +00:00
Edward Hervey
64d775a44f urisourcebin: Move adaptive demuxer handling into ChildSrcPadInfo
It's part of that chain of elements

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2784>
2022-11-16 14:01:46 +00:00
Edward Hervey
a5f0085cda urisourcebin: Only remove components in PAUSED->READY
With the refactoring, we are guaranteed the components are only created in PAUSED

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2784>
2022-11-16 14:01:46 +00:00
Edward Hervey
5b41ea2fe8 urisourcebin: Refactor ChildSrcPadInfo and OutputSlot usage
Make an explicit topology/tree of structures:
* ChildSrcPadInfo is created for each source element source pad
* ChildSrcPadInfo contains the chain of optional elements specific to that
  pad (ex: typefind)
* A ChildSrcPadInfo links to one or more OutputSlot, which contain what is
  specific to the output (i.e. optional buffering and ghostpad)
* No longer use GObject {set|get}_data() functions to store those structures and
  instead make them explicit
* Pass those structures around explicitely in each function/callback

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2784>
2022-11-16 14:01:46 +00:00
Edward Hervey
f42ca96ad9 urisourcebin: Remove duplicate call
We ensure sources are removed in PAUSED->READY->NULL. No need to call it when
creating the source.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2784>
2022-11-16 14:01:46 +00:00
Edward Hervey
64c81b6972 urisourcebin: Remove pending pad handling
This was needed to support the legacy handling of changing streams (add new
pads, send EOS and remove old pads).

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2784>
2022-11-16 14:01:46 +00:00
Edward Hervey
b6584defd0 urisourcebin: Only expose pads once activation has completed
The following problem could happen:
* Thread 1 : urisourcebin gets activated from READY->PAUSED
* Thread 2 : some element causes a pad to be added to urisourcebin , which gets
linked downstream, which decides to activate upstream to pull-based.
  * That requires "activating" the pads from PUSH to NONE, and then from NONE to PULL
* Thread 1 : the base class state change handlers checks if all pads are
activated

The issue is that since going form PUSH to PULL requires going through NONE,
there is a window during which:
* Thread 1 : The pad was set to NONE (before being set to PULL)
* Thread 2 : The base class activates that pad (to PUSH)
* Thread 1 : The attempt to "activate" to PULL fails (silently or not)

This is very racy, so in order to avoid that, we make sure that we only add pads
once the transition from READY->PAUSED in the parent classes is done.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2784>
2022-11-16 14:01:46 +00:00
Edward Hervey
a347846698 urisourcebin: Only allow streams-aware adaptive demuxer
We no longer want to deal with elements that use the old-style of stream
switching and instead expose/remove streams as they appear/disappear

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2784>
2022-11-16 14:01:46 +00:00
Edward Hervey
e7eb9271ee urisourcebin: Simplify initial information collection
When iterating existing pads of a source, directly handle them:
* Raw pads are handled directly
* Pads without caps are connected to a typefind
* Other pads are handled via `handle_new_pad()`

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2784>
2022-11-16 14:01:46 +00:00
Edward Hervey
80770fe0ec urisourcebin: Use iterator function where applicable
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2784>
2022-11-16 14:01:46 +00:00
Edward Hervey
41617834d2 urisourcebin: Document and rename fields
Removes ambiguity when reading the code

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2784>
2022-11-16 14:01:46 +00:00
Edward Hervey
c8b9a7d640 urisourcebin: Remove unused lock/list
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2784>
2022-11-16 14:01:46 +00:00
Edward Hervey
638633dea3 urisourcebin: Check for live source when generating element
Instead of at a later stage

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2784>
2022-11-16 14:01:46 +00:00
Edward Hervey
e8f9e17744 urisourcebin: Streamline demuxer removal
And since remove_source also removes the dmeuxer, we no longer need to call it
in addition

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2784>
2022-11-16 14:01:46 +00:00
Edward Hervey
577febc29e urisourcebin: Clarify function name and arguments
* The "need_queue" variable is only used in one place, move it there
* Clarify the fact the function also exposes raw_pads

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2784>
2022-11-16 14:01:46 +00:00
Edward Hervey
586ec1a672 urisourcebin: Error out if a source doesn't expose pads
Looks like this fell through the cracks. If a source element doesn't have
dynamic pads and doesn't provide any source pad ... we should properly error
out.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2784>
2022-11-16 14:01:46 +00:00
Edward Hervey
0c47735c4a urisourcebin: Fix usage of raw and non-raw source provider
The computation in analyze_source was wrong, and would state that the element
has "all raw source pads" if it had at least one.

Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1029

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3199>
2022-10-18 07:46:06 +00:00
Jan Schmidt
bf6d30ed79 urisourcebin: Make sure event is writable before modifying.
Make sure we're operating on a private copy of an event before
modifying it.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3107>
2022-10-03 16:40:49 +00:00