Commit graph

59 commits

Author SHA1 Message Date
Kyrylo Polezhaiev
6af38c6ffe tsmux: Fix copying of buffer region 2019-11-18 07:31:33 +00:00
Aaron Boxer
6d3429af34 documentation: fixed a heap o' typos 2019-11-05 09:11:25 -05:00
Edward Hervey
ef16d7558f mpegtsmux: Add SCTE-35 support
This adds two properties:
* scte-35-pid: If not 0, enables the SCTE-35 support for the current
  program. This will write the proper PMT and send SCTE-35 NULL
  commands (i.e. heartbeats) at a regular interval
* scte-35-null-interval: This specifies the interval at which the
  NULL commands should be sent

Sending SCTE-35 commands is done by creating the appropriate SCTE-35
GstMpegtsSection and then sending them on the muxer. See the
associated example
2019-10-31 12:31:27 +00:00
Edward Hervey
5464775aef tsmux: Disable bluray-isms from PMT
We were unconditionally adding top-level descriptors in the PMT which
were only related to bluray support for PS3 (from 10 years ago).

These should be re-added conditionally
2019-10-31 12:31:27 +00:00
Mathieu Duponchelle
73f92371b8 basetsmux: expose pcr-interval property
Instead of using a static hardcoded PCR interval, allow the user
to configure it.

Also revert back the default to a 40 ms interval, that was changed
in recent patches for no good reason.
2019-07-31 15:54:13 +02:00
Mathieu Duponchelle
9996ae9ae0 tsmux: output smoothly increasing PTS when in CBR mode
Thanks to that, when its output is plugged into eg a udp sink, the
outgoing data can be output in a smoother way, reducing burstiness
2019-07-04 23:28:42 +00:00
Seungha Yang
00b2b599d6 mpegtsmux: Remove white space 2019-07-04 19:42:48 +09:00
Mathieu Duponchelle
76c3d98962 basetsmux: preserve user-specified sections across resets
As sections can be provided by the user through send_event
when the element state is NULL, their lifetime is expected
to match that of the muxer, and they must be preserved when
the state changes
2019-05-30 13:53:05 +00:00
Mathieu Duponchelle
5d41740ff6 tsmux: maintain packet counters in a global array
We can have multiple TsMuxPacketInfo objects for the same PID
with user-provided sections, for example ATSC requires multiple
tables with the same PID.
2019-05-30 13:53:05 +00:00
Mathieu Duponchelle
9190541e3c tsmux: refactor logic for when to (re)transmit tables
In order to output them at regular intervals in the bitstream
when a bitrate is specified.
2019-05-19 19:40:48 +00:00
Mathieu Duponchelle
3c7c08e7c4 tsmux: fix continuity counter for packets with no payload 2019-05-19 19:40:48 +00:00
Mathieu Duponchelle
a1cadd11b8 mpegtsmux: aggregator port 2019-05-19 19:40:48 +00:00
Mathieu Duponchelle
a57f4dc8d9 mpegtsmux: spring cleanup, no functional change 2019-05-19 19:40:48 +00:00
Mathieu Duponchelle
649cc2d5e8 mpegtsmux: extract an actual base class 2019-05-19 19:40:48 +00:00
Mathieu Duponchelle
4e7f94f5fa mpegtsmux: expose the vmethods necessary for ATSC E-AC-3 handling 2019-05-19 19:40:48 +00:00
Mathieu Duponchelle
ea011a3266 mpegtsmux: provide API for subclasses to override stream creation 2019-05-19 19:40:48 +00:00
Mathieu Duponchelle
98c98c7c53 tsmux: Calculate PCR from number of bytes written in CBR mode 2019-05-19 19:40:48 +00:00
Mathieu Duponchelle
07235bbf46 mpegtsmux: Expose bitrate property
This allows outputting a Transport Stream with a constant bitrate,
by inserting null packets.
2019-05-19 19:40:48 +00:00
Mathieu Duponchelle
4d53a7ac09 tsmux: actually respect the PCR frequency we target 2019-05-19 19:40:48 +00:00
Mathieu Duponchelle
dc2b28d456 tsmux: Use DTS over PTS 2019-05-19 19:40:48 +00:00
Sebastian Dröge
93e56ed473 mpegtsmux: Explicitly resend PAT/SI/PMT on force-keyunit events
And don't randomly change the PCR stream, which would cause a new PMT
version to be generated instead and could confuse players.
2018-03-21 13:42:30 +02:00
Sebastian Dröge
e3740b58d7 tsmux: Don't use GST_DEBUG_OBJECT() with non-GObject types 2018-03-21 10:59:29 +02:00
Reynaldo H. Verdejo Pinochet
0f71d2e408 Use proper GtkDoc notation for NULL/FALSE/TRUE 2017-10-03 14:35:48 -07:00
Aaron Boxer
bbbdc2cd7e tsmux/tsdemux: Add support for JPEG2000
Based on patches by Milos Seleceni.

https://bugzilla.gnome.org/show_bug.cgi?id=753323
2017-07-21 09:33:31 +03:00
Vincent Penquerc'h
1630d2a0d7 mpegtsmux: fix buffer size mismatch in M2TS mode
In M2TS mode, we need an extra 4 bytes in the buffer, so need
to ensure the buffer can contain these. The allocation site
does not know the mode, so this is done in all cases.
2016-10-17 12:32:58 +01:00
Bob Holcomb
cb520dce26 mpegtsmux: fix reserve bits so they are 1's
The MPEG standard (ISO-13880-1) says the reserve bits need to be set
to one (2.1.64). This is causing transport streams to fail validation
on some systems.

https://bugzilla.gnome.org/show_bug.cgi?id=760127
2016-01-09 16:38:04 +00:00
Reynaldo H. Verdejo Pinochet
86ec812429 Remove unnecessary NULL checks before g_free()
g_free() is NULL-safe
2015-11-18 16:05:42 -08:00
Vineeth TM
39d657c274 tsmux: code style fix
trivial patch to add proper ( while checking for if(G_UNLIKELY())

https://bugzilla.gnome.org/show_bug.cgi?id=751305
2015-06-22 10:12:45 +01:00
Nicolas Dufresne
e000a6f0a4 tsmux: Add negative DTS support
Use the saved DTS, make it signed and pass that to the stream muxer. This
preserves the running time sign. All usage of -1 as invalid TS are now
replaced with G_MININT64. Negative values will be seen as wrap-around
point, but the delta between PTS and DTS will remain correct. Demuxers
don't care about absolute values, they only cares about deltas.

https://bugzilla.gnome.org/show_bug.cgi?id=740575
2015-06-12 17:10:29 -04:00
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
Edward Hervey
998e19896b mpegtsmux: Remove unneeded unref
packet_buffer has already been cleared in all code paths leading
to this point.

CID #1199696
2014-04-11 11:34:26 +02:00
Vincent Penquerc'h
931150cb91 Revert "tsmux: catch alloc failure"
Turns out glib aborts on allocation failure, so this is pointless.
We'll just ignore Coverity warnings on such constructs.

This reverts commit d347809a82.
2014-04-09 16:01:43 +01:00
Vincent Penquerc'h
d6dc066527 tsmux: prevent possible double free on error path
Spotted while looking at a Coverity issue in the area.
2014-04-09 13:44:59 +01:00
Vincent Penquerc'h
d347809a82 tsmux: catch alloc failure
While it will probably not trigger, it should silence a Coverity
warning about the fail code path testing for NULLness before
freeing, where the buffer was already dereferenced. It seems
safest to keep that test, in case future goto fail statements
happen to have a NULL buffer there.

Coverity 1139851
2014-04-09 13:44:45 +01:00
Jesper Larsen
6a5f1354b3 mpegtsmux: Use mpeg-ts lib for PAT/PMT sections
Rewrite of the PAT/PMT section handling to use the mpeg-ts library
2014-02-06 15:57:50 +01:00
Jesper Larsen
93a8137be6 mpegtsmux: Add support for muxing SI tables
The muxer is now able to include DVB sections in the transport stream.

The si-interval property will determine how often the SI tables are
muxed into the stream.

The section is handled by the mpeg-ts library. Below is a small example
that will include a Netork Information Table with a Network Name
descriptor in the stream.

GstMpegTsNIT *nit;
GstMpegTsDescriptor *descriptor;
GstMpegTsSection *section;
GstElement *mpegtsmux;

gst_mpegts_initialize ();

nit = gst_mpegts_section_nit_new ();
nit->actual_network = TRUE;

descriptor = gst_mpegts_descriptor_from_dvb_network_name ("Network name");
g_ptr_array_add (nit->descriptors, descriptor);

section = gst_mpegts_section_from_nit (nit);

// mpegtsmux should be retrieved from the pipeline
gst_mpegts_section_send_event (section, mpegtsmux);
gst_mpegts_section_unref (section);
2014-02-06 15:55:46 +01:00
Thibault Saunier
b148c22cec mpegtsmux: Properly add subtitle descriptor for DVb subpicture subtitles
We were adding an empty descriptor for them and it was not possible to
actually use them on muxed streams.
2013-11-13 17:56:07 -03:00
Jesper Larsen
e4a0c4d509 mpegtsmux: Set the program number from prog-map
The prog-map property of mpegtsmux only allows you to group pids together in a program.
The program number set in the PAT/PMT tables cannot be set explicitly.

This patch will set the program number according to the prog-map.
If a program id of 0 is given, the first vacant program number starting from 1 will be used.

https://bugzilla.gnome.org/show_bug.cgi?id=697239
2013-08-21 13:02:02 +02:00
Tim-Philipp Müller
9e1b75fda3 Fix FSF address
https://bugzilla.gnome.org/show_bug.cgi?id=687520
2012-11-04 00:09:59 +00:00
Mark Nauwelaerts
c4b480b993 mpegtsmux: apply some more CLOCK_BASE to ensure slack for PCR offset
Conflicts:

	gst/mpegtsmux/tsmux/tsmux.c
2012-06-27 14:52:10 +02:00
Matej Knopp
6229305d7b mpegtsmux: port to 0.11
https://bugzilla.gnome.org/show_bug.cgi?id=678130
2012-06-16 19:22:35 +02:00
Mark Nauwelaerts
05dcabfe16 mpegtsmux: avoid memcpy due to temporary packet buffer
... by writing directly into the output buffer instead.
2012-06-11 16:52:49 +02:00
Mark Nauwelaerts
ead42a5e27 mpegtsmux: improve m2ts timestamp interpolation
* a known PCR should really belong to a packet holding that PCR
* interpolation can be extended backward for initial packets (PAT, PMT)
2012-06-08 11:30:03 +02:00
Mark Nauwelaerts
4cc905409e mpegtsmux: more header clarifications and remove some redundant fields 2012-06-06 10:32:05 +02:00
Mark Nauwelaerts
38bb55c472 mpegtsmux: avoid PID collision for auto-generated PID 2012-06-06 10:31:59 +02:00
Edward Hervey
e3a02ce49a mpegtsmux: Don't use g_list_first ()
Seriously ...
2012-06-06 10:31:48 +02:00
David Schleef
02daafb9ae mpegtsmux: use gst debug for tsmux library 2011-05-18 12:06:38 -07:00
Jan Schmidt
5111540ceb Use correct clock when checking whether to write a new PCR
The PCR clocks against the 27MHz SCR clock, so check it correctly
to avoid writing the PCR too often.

Partially fixes: #611046
2011-03-26 16:18:22 +11:00
Andoni Morales Alastruey
4668330bdc mpegtsmux: Initialize PES packet before getting the header size.
The PES header length is calculated before setting the dynamic flags, returning
a wrong value. Small frames that should be sent in a single TS packet are
spawned to a new packet because of that error. For audio streams where a single
frame can cope in one TS packet it introduces a huge overhead.

For a 100B packet, we prepare a TS packet with a payload of(100+9)B. Then, we
write the TS header using this value in tsmux_write_ts_header, and call
tsmux_stream_get_data(). The dynamic flags where not set yet and now
tsmux_stream_pes_header_length() returns 14B instead of 9B. The payload of the
TS packet is 114B, 5B more than what was calculated. 109B are sent in a first
packet and the remaining 5B are sent in another one.

Fixes bug #628548.
2010-09-04 15:01:30 +02:00
Marc-André Lureau
d335a55b49 mpegtsmux: take all the pmt in the streamheaders 2010-06-08 15:36:29 +02:00