Commit graph

31 commits

Author SHA1 Message Date
Edward Hervey
dd3542aa4d adaptivedemux2: Don't blindly set the main manifest URI as referer
There's no guarantee it will *actually* be the URI which refered to what we are
downloading. It could be a stream URI or anything else.

Instead of putting something wrong, put no (specific) referer as a better choice

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3972>
2023-03-20 07:59:27 +00:00
Sebastian Dröge
ccad9a7338 plugins: Fix various trivial clang compiler warnings
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4210>
2023-03-18 16:16:55 +02:00
Edward Hervey
f072b25940 adaptivedemux2: Use track ID for debugging
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3890>
2023-02-10 10:56:52 +00:00
Edward Hervey
3129970c8a hlsdemux2: Fix buffering threshold calculation and handling
* The checks for smaller values were wrong
* Properly initialize the stream default recommended buffering threshold so that
  a default (10s) value is used until the subclass can provide a proper value

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3883>
2023-02-03 16:52:23 +00:00
Jan Schmidt
6bb74ed2a0 adaptivedemux2: Fix download error handling more
gst_adaptive_demux2_stream_finish_download() will already schedule another
fragment download if it can so don't fall through to the retry code that will
also try and schedule a download (triggering an assert).

Fix the logic in general to retry advancing into the live seek range once.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3883>
2023-02-03 16:52:23 +00:00
Jan Schmidt
52d577eee1 adaptivedemux2: Fix for failed download handling
When playing at the live edge of a live playlist, and a download fails, we don't
expect there to be a next fragment. That case is handled lower down anyway, so
don't retry infinitely on spurious http errors at the live edge.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3883>
2023-02-03 16:52:23 +00:00
Jan Schmidt
44d3751d68 adaptivedemux2: Add gst_adaptive_demux2_stream_wait_prepared()
Add a method that waits for a stream to signal the prepare_cond after it returns
a BUSY flow return.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3883>
2023-02-03 16:52:23 +00:00
Jan Schmidt
d3acafbb5a adaptivedemux2: Remove gst_adaptive_demux2_stream_has_selected_tracks
Use gst_adaptive_demux2_stream_is_selected_locked() instead, which is identical

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3883>
2023-02-03 16:52:23 +00:00
Jan Schmidt
0962908e62 adaptivedemux2: Add start/stop vfuncs
Remove the can_start() vfunc, in favour of vfuncs when the stream starts/stops,
allowing the sub-class to do custom logic before (or preventing) the stream from
starting and stopping.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3883>
2023-02-03 16:52:23 +00:00
Jan Schmidt
82839fb82f adaptivedemux2: Add new flow return value for BUSY and PREPARE stream state
Neither are used yet, they're just placeholders.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3883>
2023-02-03 16:52:23 +00:00
Jan Schmidt
76565e8979 adaptivdemux2: Improve a comment about unlocking download requests.
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3883>
2023-02-03 16:52:22 +00:00
Jan Schmidt
a14f4f7054 adaptivedemux2: Make download mechanism overrideable
Make the mechanism by which DownloadRequests are fulfilled overrideable by the
subclass, in case it has an internal mechanism it can use (such as blocking
preloads in HLS)

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3883>
2023-02-03 16:52:22 +00:00
Edward Hervey
f9dbf91539 adaptivedemux2: Don't leak caps in debug statements
Instead just directly use the stream object (which will report the caps)

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3443>
2022-11-21 19:02:44 +00:00
Edward Hervey
a742c3bf27 adaptivedemux2: Don't leak tags
If we got them from GstStream, we should unref them when done

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3443>
2022-11-21 19:02:44 +00:00
Edward Hervey
e36b1ae6ed adaptivedemux: Use gst_clear_tag_list_where applicable
Clearer and ensures fields are reset

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3443>
2022-11-21 19:02:44 +00:00
Jan Schmidt
565f47b4f3 adaptivedemux2: Move stream_seek() to the Stream class
Move the last stream specific vfunc from the demux
class to the stream class.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3314>
2022-11-05 04:00:31 +11:00
Jan Schmidt
2fe641353d adaptivedemux2: Refactor stream methods into the stream
Unlike the legacy elements, GstAdaptiveDemuxStream is a GObject now,
so a bunch of things that were actually stream methods on the
parent demux object can directly become stream methods now.

Move the stream class out to a header of its own.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3314>
2022-11-05 04:00:31 +11:00
Jan Schmidt
93f80bb061 adaptivedemux2: Add state checks and clean up obsolete variables
The cancelled flag was only set in the stream finalize()
method, after all activity on the stream has stopped anyway.
Replace uses of cancelled with checks on the stream state.

Remove the replaced flag, which was checked but never set
to TRUE anywhere any more.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3314>
2022-11-05 03:24:26 +11:00
Edward Hervey
33db765f45 adaptivedemux2: Improve minimum buffering threshold
Previously the minimum buffering threshold was hardcoded to a specific
value (10s). This is suboptimal this an actual value will depend on the actual
stream being played.

This commit sets the low watermark threshold in time to 0, which is an automatic
mode. Subclasses can provide a stream `recommended_buffering_threshold` when
update_stream_info() is called.

Currently implemented for HLS, where we recommended 1.5 average segment
duration. This will result in buffering being at 100% when the 2nd segment has
been downloaded (minus a bit already being consumed downstream)

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3240>
2022-10-31 16:16:50 +01:00
Jan Schmidt
a03f3df626 adaptivedemux2: Rework input download wakeups
Change the way streams are woken up to download more data.

Instead of checking the level on tracks that are being
output as data is dequeued, calculate a 'wakeup time'
at which it should download more data, and wake up
the stream when the global output position crosses
that threshold.

For efficiency, compute the earliest wakeup time
for all streams and store it on the period, so the
output loop can quickly check only a single value
to decide if something needs waking up.

Does the same buffering as the previous method,
but ensures that as we approach the end of
one period, the next period continues incrementally
downloading data so that it is fully buffered when
the period starts.

Fixes issues with multi-period VOD content where
download of the second period resumes only after
the first period is completely drained.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3055>
2022-09-20 19:48:17 +00:00
Jan Schmidt
f4f1819416 adaptivedemux2: Fix for period switching in live streams
When playing live, it's possible that one stream reaches
the end of the available playback window and goes to sleep
waiting for a manifest update, and the manifest update
introduces a new period. In that case, the sleeping
stream needs to wake up and go 'properly' EOS before we
can advance the input to the new period.

Accordingly, make sure that a stream's last_ret value
is not marked as EOS if it's just sleeping waiting for a live
manifest update.

Also fix the output loop to go back and re-check if it's
time to switch to the next period after dequeuing and
discarding an EOS event.

https://livesim.dashif.org/livesim/periods_20/testpic_2s/Manifest.mpd

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2895>
2022-08-16 12:39:58 +00:00
Jan Schmidt
d60c2f46e2 adaptivedemux2-stream: Silence a compiler warning
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2839>
2022-08-04 14:49:49 +01:00
Edward Hervey
5d0b112c0c adaptivedemux2/hlsdemux2: Handle loss of sync when dowloading.
Media playlist updates and fragment downloads happen in an interleaved
fashion. When a media playlist update fails *while* a segment is being
downloaded, this means we lost synchronization.

Properly propagate and handle this

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2839>
2022-08-04 14:49:27 +01:00
Edward Hervey
abe5a06421 adaptivedemux2: Handle synchronously to lost sync
We are already in the main scheduler thread, therefore we can do the "seek back
to live" directly. This also avoids other pending actions to take place.

Also handle the loss of sync when doing manifest updates.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2839>
2022-08-04 14:49:27 +01:00
Jan Schmidt
de7e2c9b6b adaptivedemux2: stream: Set period has_next_period flag before EOS
Before sending EOS, update the period's has_next_period
flag and/or create the next period. This closes a race
where the output loop might receive the EOS event
and either push it downstream (causing premature EOS),
or receive it and try and switch to the next period
before that period is completely set up.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2838>
2022-08-04 13:43:51 +01:00
Jan Schmidt
a369448b0c adaptivedemux2: Clean up stream parsebins on finalize
Remove the parsebin for a stream from the overall
bin when cleaning up the stream, to avoid
keeping around old ones when moving between periods

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2676>
2022-06-29 14:33:30 +00:00
Jan Schmidt
e1559d26d0 adaptivedemux2: stream: Don't take TRACKS_LOCK when sending EOS event
The stream tracks list can't change while we're
iterating it from the scheduling thread,
and the event handler immediately takes the
tracks lock, causing a deadlock.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2650>
2022-06-28 18:34:31 +00:00
Edward Hervey
d88d7d5b55 adaptivedemux2: Handle loss of synchronization
Add a new custom GstFlowReturn so that subclasses can notify that they have lost
live synchronization.

When that happens, do a flushing seek back to the live position

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2679>
2022-06-28 17:59:23 +00:00
Edward Hervey
4eac7f0e06 adaptivedemux2: Initialize and use stream start/current position
The stream start and current position would be properly set when seeking or
activating a stream after playback started. But it would never be properly
initialized.

Set it to NONE initially to indicate to subclasses that no position has been
tracked yet. This will allow them to detect initial stream usage.

Futhermore, once the initial streams setup is done, make sure that it is set to
a valid initial value:
* The minimum stream time in live
* Or else the period start

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2679>
2022-06-28 17:59:23 +00:00
Xavier Claessens
b99ecc78ca Replace gst-i18n-*.h with gi18n-lib.h
GLib guarantees libintl is always present, using proxy-libintl as
last resort. There is no need to mock gettex API any more.

This fix static build on Windows because G_INTL_STATIC_COMPILATION must
be defined before including libintl.h, and glib does it for us as part
as including glib.h.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2028>
2022-04-19 18:01:06 +00:00
Edward Hervey
af78c16dd5 New HLS, DASH and MSS adaptive demuxer elements
This provides new HLS, DASH and MSS adaptive demuxer elements as a single plugin.

These elements offer many improvements over the legacy elements. They will only
work within a streams-aware context (`urisourcebin`, `uridecodebin3`,
`decodebin3`, `playbin3`, ...).

Stream selection and buffering is handled internally, this allows them to
directly manage the elementary streams and stream selection.

Authors:
* Edward Hervey <edward@centricular.com>
* Jan Schmidt <jan@centricular.com>
* Piotrek Brzeziński <piotr@centricular.com>
* Tim-Philipp Müller <tim@centricular.com>

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2117>
2022-04-18 14:11:23 +00:00