Commit graph

21 commits

Author SHA1 Message Date
Vivia Nikolaidou
fabf948194 tsdemux: Don't check SCTE events for being too far from the PCR
Otherwise it happens that SCTE events can only be scheduled up to 15
seconds since the last seen PCR, which is a useless restriction.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2021>
2022-03-24 18:59:37 +00:00
Edward Hervey
fb81c4dbf5 mpegts: Handle glib < 2.58
By using a workaround to the lack of g_ptr_array_steal_index.

Fixes #1078

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1917>
2022-03-10 17:24:45 +00:00
Edward Hervey
a95a3ca807 tsbase: Handle more program updates
There could be a case where the new program has the same program number as the
previous one ... but is actually located on a PID previously used for elementary
stream. In that case the program is guaranteed to not be an update of the
previous program but a completely new one.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1893>
2022-03-09 19:45:08 +00:00
Edward Hervey
76543ee73a mpegtsbase: Use an array to track programs
We need to be able to look for programs by their PID also. Using a hash table
was a bit sub-par (and overkill) for storing a range of programs.

This is needed because there could potentially be two programs with the same
program id but different PMT PID (while one is being deactivated the new one
would "exist").

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1893>
2022-03-09 19:45:08 +00:00
Edward Hervey
03b1790e0d tsdemux: Handle PES headers bigger than a mpeg-ts packet
While the actual PES header parser could notify us that it needed more data, we
would never actually act on it.

This commit will accumulate incoming packets in such situation and re-attempt
the header parsing.

Fixes #1027

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1852>
2022-03-04 15:14:31 +00:00
Stéphane Cerveau
a4b83810fe tsdemux: unlock mutex on -1 start_offfset
Closing #1013

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1694>
2022-02-14 12:58:33 +00:00
Vivia Nikolaidou
6bf36f6e0f tsdemux: Change many GST_{DEBUG, LOG, etc} into _OBJECT
Log files with several demuxers running at once can otherwise get
confusing

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1096>
2021-10-18 18:34:04 +00:00
Vivia Nikolaidou
300e784a20 tsdemux: Issue GST_ELEMENT_WARNING for continuity errors
The application might want to make use of these.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1096>
2021-10-18 18:34:04 +00:00
Vivia Nikolaidou
273e2a1db6 mpegtsbase: Search SCTE-35 DRF_ID_CUEI in multiple registration descriptors
There are streams in the wild that have to add a SCTE-35 trigger in
another e.g. GA94 stream. Most encoders would replace the GA94
descriptor ID with the CUEI one temporarily, but there are some that
will add two registration ID descriptors, one with GA94 and one with
CUEI.

Failing to parse the CUEI registration ID in that case would return
FALSE in _stream_is_private_section , therefore setting it as known PES
and pushing packets downstream instead of calling handle_psi.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/979>
2021-10-18 13:58:39 +00:00
Edward Hervey
d9b1e1e99f tsdemux: Improve gap detection
We should also take into account whether data is currently pending when checking
for gap on streams. It could very well be that some streams have very low
bitrate (and spread out) data. For those we don't want to push out a gap event.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1179>
2021-10-18 11:23:25 +00:00
Edward Hervey
0ff569d408 tsdemux: Handle "negative" timestamps
This is only enabled in push time mode. Furthermore it's only enabled for now if
PCR is to be ignored.

The problem is dealing with streams where the initial PTS/DTS observation might
be greater than following ones (from other PID for example). Before this patch,
this would result in sending buffers without any timestamp which would cause a
wide variety of issues.

Instead, pad segment and buffer timestamps with an extra
value (packetizer->extra_shift, default to 2s), to ensure that we can get valid
timestamps on outgoing buffers (even if that means they are before the segment
start).

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1179>
2021-10-18 11:23:25 +00:00
Edward Hervey
74e9d44db3 tsdemux: Handle streams with bogus PTS vs DTS
PTS and DTS should be within a reasonable distance of each other.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1179>
2021-10-18 11:23:25 +00:00
Edward Hervey
6efa9dc00e tsdemux: Handle PTS->TS at wraparound
This has been a FIXME for ages.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1179>
2021-10-18 11:23:25 +00:00
Vivia Nikolaidou
23bf9f75b6 tsdemux: Handle delayed seek events
Store the event in case it cannot be processed immediately and process
it after the first segment has been produced.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/980>
2021-10-14 21:45:00 +00:00
Vivia Nikolaidou
5800ffea0f tsdemux: Protect demux->segment_event with a mutex
Would otherwise cause weird issues when processing a delayed seek event

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/980>
2021-10-14 21:45:00 +00:00
Jan Alexander Steffens (heftig)
0596da1966 mpegtsparse: Don't assert the packet_size when filling for EOS
If the packetizer got reset for any reason (failure to find PCR?) then
the packet_size can be zero here even though we already enqueued some
packets.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1038>
2021-10-05 09:38:27 +00:00
Mathieu Duponchelle
f0a158407c mpegts: add missing Since comments after SCTE 35 work
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/913>
2021-09-25 01:29:38 +00:00
Mathieu Duponchelle
4af003bc02 tsdemux: switch SCTE 35 sections handling to a passthrough model
Instead of modifying the splice times in the incoming sections
to running time and expecting eg mpegtsmux to convert those back
to its local PES time domain, which might be impossible when
those splice times are encrypted or the specification is extended,
transmit the needed information to the muxer as separate fields in
the event:

* A pts offset field can be used by the muxer in order to calculate
  a final pts_adjustment

* A rtime_map can be used by the muxer to determine the correct
  running times at which it should request keyframes

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/913>
2021-09-25 01:29:38 +00:00
Mathieu Duponchelle
1ca08bff57 tsdemux: Expose send-scte35-events property
When enabled, SCTE 35 sections (eg ad placement opportunities)
are forwarded as events donwstream.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/913>
2021-09-25 01:29:37 +00:00
Mathieu Duponchelle
b2718ed6cf mpegtsbase: expose vmethod to let subclass handle sections
This can be used by tsdemux to handle and forward SCTE 35
sections.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/913>
2021-09-25 01:29:37 +00:00
Thibault Saunier
019971a3c7 Move files from gst-plugins-bad into the "subprojects/gst-plugins-bad/" subdir 2021-09-24 16:14:36 -03:00