Commit graph

354 commits

Author SHA1 Message Date
Sebastian Dröge
aa6ee77297 mpegtspacketizer: Don't dereference NULL if we have no PCR yet
Can happen sometimes if the duration is requested before we
received enough data with a PCR.
2014-07-03 14:15:36 +02:00
Jan Schmidt
c103f7134b tsdemux: Add locking around mpegtspacketiser groups.
Otherwise occasionally DURATION queries can crash, if they happen at
the wrong moment.
2014-07-03 21:46:28 +10:00
Edward Hervey
22dfd9aef3 mpegts: Unify API : GstMpegts / gst_mpegts_ / GST_*_MPEGTS_
It was previously a mix and match of both variants, introducing just too much
confusion.

The prefix are from now on:
* GstMpegts for structures and type names (and not GstMpegTs)
* gst_mpegts_ for functions (and not gst_mpeg_ts_)
* GST_MPEGTS_ for enums/flags (and not GST_MPEG_TS_)
* GST_TYPE_MPEGTS_ for types (and not GST_TYPE_MPEG_TS_)

The rationale for chosing that is:
* the namespace is shorter/direct (it's mpegts, not mpeg_ts nor mpeg-ts)
* the namespace is one word under Gst
* it's shorter (yah)
2014-06-25 14:50:05 +02:00
Stefan Ringel
7c884374eb mpegts: change to GType and from gchar[] to gchar*
https://bugzilla.gnome.org/show_bug.cgi?id=730914
2014-06-24 16:06:01 +02:00
Tim-Philipp Müller
983eb6d28a tsdemux: fix up comment 2014-06-22 12:32:35 +01:00
Sebastian Dröge
59bdcd9ae3 tsdemux: Update comments to the new reality and remove unused variables 2014-06-21 16:55:05 +02:00
Edward Hervey
1d1d469488 tsdemux: Don't overwrite original seek value
In accurate mode, we'll be using start to fill in the seek segment,
therefore don't overwrite it with the shifted seek position.

https://bugzilla.gnome.org/show_bug.cgi?id=731698
2014-06-16 07:42:37 +02:00
Edward Hervey
97b3382c80 mpegtspacketizer: live: handle pcr/dts discrepancies some more
When wrapover/reset occur, we end up with a small window of time where
the PTS/DTS will still be using the previous/next time-range.

In order not to return bogus values, return GST_CLOCK_TIME_NONE if the
PTS/DTS value to convert differs by more than 15s against the last seen
PCR

https://bugzilla.gnome.org/show_bug.cgi?id=674536
2014-06-13 11:52:15 +02:00
Edward Hervey
fdf9bdf929 mpegtspacketizer: Fix wraparound detection issue
Using 32bit unsigned values for corrected pcr/offset meant that we
potentially ended up in bogus values

Furthermore, refpcr - refpcroffset could end up being negative, which
PCRTIME_TO_GSTTIME() can't handle (and returned a massive positive value)
2014-06-13 11:48:39 +02:00
Mathieu Duponchelle
79c13b713e tsdemux: implement proper seeking for h264 streams.
Co-Authored by: Thibault Saunier <tsaunier@gnome.org>

From a high level perspective, the new process for seeking h264
streams is as follows:

1) Rewind the stream until we find the first I-slice of a frame,
   and mark its offset in the stream.
2) Rewind the stream until we find SPS and PPS informations,
   to make sure the subsequent parser is up to date.
3) Accumulate optionnal SEI NAL units on the way.
4) Push the SPS, PPS and SEI units before the new keyframe.

https://bugzilla.gnome.org/show_bug.cgi?id=675132
2014-06-12 14:44:10 +02:00
Edward Hervey
6be887783e mpegtspacketizer: Use first group for handling reference pcr
If _set_current_pcr_offset gets called after a flushing seek, we ended
up using the current group for delta calculation ... whereas we should
be using the first group to calculate shifts.

Also add an early exit if there are no changes to apply
2014-06-11 09:41:50 +02:00
Edward Hervey
0020a9344d tsdemux: Remove unused variable
The seeksegment was no longer used since the switch to calculating segments
when we see data.
2014-06-10 14:50:10 +02:00
Edward Hervey
6043f7a578 mpegtspacketizer: Fix debug statement 2014-06-10 14:27:53 +02:00
Edward Hervey
8e28f335f4 mpegtspacketizer: Fix duration evaluation in push mode
When working in push mode, we need to be able to evaluate the duration
based on a single group of observations.

To do that we use the current group values
2014-06-10 14:27:01 +02:00
Edward Hervey
a822517ca9 mpegtspacketizer: Handle early PTS conversion
When handling the PTS/DTS conversion in new groups, there's a possibility
that the PTS might be smaller than the first PCR value observed, due to
re-ordering.

When using the current group, only apply the wraparound correction when we
are certain it is one (i.e. differs by more than a second) and not when it's
just a small difference (like out-of-order PTS).

https://bugzilla.gnome.org/show_bug.cgi?id=731088
2014-06-10 13:29:28 +02:00
Edward Hervey
a2890e831b mpegtsdemux: Fix sticky event handling
When we receive sticky events from upstream, always return TRUE.

Fixes the issue where we receive custom sticky events (such as "uri")
and no pads are created yet.
2014-06-07 07:15:33 +02:00
Jan Schmidt
9538651a20 tsdemux: Remove extraneous extra parameter from check_pending_buffers function 2014-06-04 21:56:28 +10:00
Jan Schmidt
a86b3d032c mpegtspacketiser: Always initialise packet AFC flags and PCR fields
Also fix a slight typo in a comment about the smoothing algorithm
2014-06-04 21:56:00 +10:00
Jan Schmidt
842c4a3d2c tsdemux: Reset pending_ts on a discont, to re-measure initial timestamps
Since all the other timestamp tracking now gets reset on a discont,
it makes sense to wait for a PCR and timestamp buffers like when
playback first starts
2014-06-04 21:54:43 +10:00
Thiago Santos
32d8022820 tsbase: parse the mgt and add listed EIT/ETT pids to the known psi
This will make tsbase also parse the EITs and ETTs from ATSC streams that have
their pids reported on the MGT and post to the bus

https://bugzilla.gnome.org/show_bug.cgi?id=730435
2014-05-29 10:37:59 +02:00
Thiago Santos
c56a4d54b8 tsdemux: add/remove pads to flowcombiner differently due to streaming nature
Due to mpegts streaming nature some pads are created but are only added
later to the element. This can cause a scenario where the first stream
doesn't have an available decoder (while the next ones still pending
would have) and tsdemux will fail with not-linked as the first stream
added wouldn't be linked.

To avoid this tsdemux needs to add pads to the flowcombiner
when they are created instead of only when adding them to the
element.
2014-05-27 10:29:32 -03:00
Thiago Santos
ae839d8dc2 mxfdemux: use GstFlowCombiner
Removes flow return combination code to use the newly added GstFlowCombiner

https://bugzilla.gnome.org/show_bug.cgi?id=709224
2014-05-26 23:29:43 -03:00
Thiago Santos
b66012a586 tsdemux: use GstFlowCombiner
Removes flow return combination code to use the newly added GstFlowCombiner
2014-05-26 23:29:43 -03:00
Edward Hervey
1b5e514a05 mpegtbase: Small rewrite
Setting done was useless anyway
2014-05-13 13:54:23 +02:00
Tim-Philipp Müller
ab3153b9a2 tsdemux: remove confusing debug log line 2014-05-10 12:56:24 +01:00
Sebastian Dröge
516597d5fa mpegtspacketizer: Remove dead code and simplify if statement
CID 1204274
2014-04-22 12:56:54 +02:00
Edward Hervey
f062b78051 mpegtspacketizer: Improve ts_to_offset code
* Search in current pending values first. For CBR streams we can very
  easily end up having just one initial observations and then nothing
  else (since the bitrate doesn't change).
* Use one group whether we are in that group *OR* if there is only
  one group.
* If the group to use isn't closed (points are being accumulated in the
  PCROffsetCurrent), use the latest data available for calculation
* If in the unlikelyness that all of this *still* didn't produce more
  than one data point, just return the initial offset
2014-04-18 16:23:43 +02:00
Edward Hervey
f96604099d tsdemux: Fix scaling macros
While the calculation done in these macros will work with 64bit
integers, they will fail if working with 32bit integers.

Force the scaling up to solve that.

This amazingly didn't introduce major issues up to now, but resulted
in bogus values in debug logs.
2014-04-18 16:20:31 +02:00
Edward Hervey
da74a23c1d mpegtsbase: Don't hard-flush the packetizer on discont buffers
Doing a hard flush on the packetizer will drop all observations, which
will eventually break push-based seeking (with BYTES segment) since
we won't know where to seek to anymore (new data would always be
considered as the beginning of the stream).
2014-04-18 16:18:01 +02:00
Vincent Penquerc'h
f255422ec2 mpegtsdemux: catch prev-not-found when inserting in the group list
While this probably should never happen if callers are well behaved,
this avoids a crash if it does. With a warning about it. Unsure if
it'd be better to not add at all, but it should not happen...

Coverity 1139713
2014-04-09 14:13:46 +01:00
Sebastian Dröge
7b2cfa6303 mpegtspacketizer: Fix typo in debug output 2014-03-29 10:33:45 +01:00
Sebastian Dröge
986c8782e4 tsdemux: Push next buffer after a discont with the DISCONT flag 2014-03-29 10:33:45 +01:00
Sebastian Dröge
264d7dbd89 tsdemux: Drain remaining data on disconts 2014-03-29 10:33:45 +01:00
Sebastian Dröge
d986d24d41 mpegtsbase: Flush if we receive a discont buffer 2014-03-29 10:33:45 +01:00
Sebastian Dröge
11bc356ce7 tsdemux: Don't dereference NULL if flushed before a program was selected 2014-03-29 10:33:45 +01:00
Sebastian Dröge
ba114b6b22 tsdemux: Ensure that all pending data is pushed even if the stream was not activated before
gst_ts_demux_push_pending_data() will check if it now can activate the
stream and add the pad, we don't have to check that ourselves.

Fixes playback of very short MPEG TS files.
2014-03-29 10:33:45 +01:00
Sebastian Dröge
0cecb44813 mpegtsbase: Fix pull mode scanning for PCR on small files
If a file does not contain 5 PCRs until it is EOS, or does not
contain more than 655360 bytes the PCR scanning algorithm just
aborted.
2014-03-29 10:33:45 +01:00
Jan Schmidt
bfe2994101 tsdemux: Fix mpegts_packetizer_set_current_pcr_offset()
When adjusting the PCR offset of groups, adjust the correct group
entry from the list - not the current group repeatedly.
2014-03-25 21:40:11 +11:00
Edward Hervey
6629ca8f2b tsdemux: Support Bluray DTS/DTS-HD and AC3+/TrueHD streams
Apart from just adding detection of the proper stream type, we also need to only
output the first substream (0x71) which contains the core substream.

While this does not provide *full* DTS-HD support (since it will miss the complementary
substreams), it will still work in the way legacy (non-DTS-HD) bluray players would work.

https://bugzilla.gnome.org/show_bug.cgi?id=725563
2014-03-15 18:09:12 +01:00
Thiago Santos
6b4ce0d04f tsdemux: store global tags to push later
Keep a list of current global tags around and push them
whenever a new stream is started. Also convert all stream
specific tags to global as they are stream specific for
the container, so they are global for the streams from
within that container.

https://bugzilla.gnome.org/show_bug.cgi?id=644395
2014-02-26 10:26:57 -03:00
Edward Hervey
fc34d163d8 mpegtsbase: Uncomment PAT clearup in _reset
The PAT is related to the stream, we therefore want it cleared along
with anything stream related.

This commented section was from the (old) mpegtsparse and *might* have
been related to speeding up DVB start-up. But we have another plan for that.

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=724716
2014-02-21 14:07:51 +01:00
Edward Hervey
c229a87ac3 mpegtspacketizer: Fix ts_to_offset beyond last observed PCR
The requested TS might be beyond the last observed PCR. In order to calculate
a coherent offset, we need to use the last and previous-to-last groups.

https://bugzilla.gnome.org/show_bug.cgi?id=721035
2014-02-20 21:52:16 +01:00
Edward Hervey
3e6c1967c9 mpegtspacketizer: Remove or move variable assignments
To where they're needed
2014-02-07 11:54:07 +01:00
Edward Hervey
00bf61a0db mpegtsdemux: Update plugin license field
The original code (old mpegtsparse) from which this plugin was based on
was dual-licensed. This allowed usage of the code under any of the
licenses (which including LGPL):

"""
* Alternatively, the contents of this file may be used under the terms of
* the GNU Lesser General Public License Version 2 or later (the "LGPL"),
* in which case the provisions of the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of the MPL or the LGPL.
"""

When refactored (leading to the creation of this new plugin), I chose all
new code to be LGPL-only (which was allowed for pre-existing code) by removing
the MPL sections.

The headers were all updated, but not the plugin license field. This commit
fixes this.
2014-02-06 14:28:54 +01:00
Sebastian Dröge
9682e44db6 tsdemux: We do not support the SKIP seek flag but that is not a problem 2014-01-30 20:29:58 +01:00
Amaury Medeiros
44a87d2109 tsdemux: Fix flags comparison operator precedence
Fix operator precedence, so the whole operation is
negated instead of only flags variable.

https://bugzilla.gnome.org/show_bug.cgi?id=722096
2014-01-28 13:56:44 +01:00
Andrey Utkin
0caa4cdfd8 tsdemux: Fix leak of PCROffsetGroup
https://bugzilla.gnome.org/show_bug.cgi?id=722462
2014-01-17 23:08:49 -03:00
Andrey Utkin
4d957e53e4 tsdemux: fix memleak of PCROffsetCurrent
https://bugzilla.gnome.org/show_bug.cgi?id=722145
2014-01-14 10:33:44 +01:00
Sebastian Dröge
84bd65b9bd tsdemux: Add HEVC / h265 support 2014-01-06 13:54:40 +01:00
Edward Hervey
64592da3e9 tsdemux: Demote GST_ERROR to GST_WARNING
discontinuities are not errors per-se and we handle them correctly.
2013-10-28 09:15:20 +01:00