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24 commits

Author SHA1 Message Date
Edward Hervey
9fd7f1c082 mpegtspacketizer: Speedup packet parsing 
Avoid using bitshifting where not needed.

Speeds up packet parsing by 3% (this is *the* hotspot of mpeg-ts elements).
 2013-06-24 07:49:34 +02:00
Edward Hervey
0592bcc3c9 mpegtspacketizer: Better detect already seen section 
In some cases (NIT on highly-populated DVB-C operator for example), there
will be more than one section emitted for the same subtable and version
number.

In order not to lose those updates for the same version number, we checked
against the CRC of the previous section we parsed.

The problem is that, while it made sure we didn't lose any information, it
also meant that if the same section came back (same version, same CRC) later
on we would re-process it, re-parse it and re-emit it.

This version improves on that by keeping a list of previously observed CRC
for identical PID/subtable/version-number and will only process sections if
they really were never seen in the past (as opposed to just before).

On a 30s clip, this brings down the number of NIT section parsing from 4541
down to 663.

https://bugzilla.gnome.org/show_bug.cgi?id=614479
 2013-06-23 09:06:15 +02:00
Josep Torra
28a2902a7b tsdemux: fixes seeking in pull mode 
Preserve the current segment and observations in pull mode seeks with
flushing.

https://bugzilla.gnome.org/show_bug.cgi?id=698050
 2013-06-12 08:01:06 +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
Edward Hervey
8b80114101 mpegts: Use G_GNUC_INTERNAL 2012-08-14 19:07:24 +02:00
Edward Hervey
4f55cc12ae tsdemux: Calculate pcr/time/offset separately per program 
Avoids quite a few issues with multi-program streams
 2012-08-14 19:05:48 +02:00
Edward Hervey
e2576f0e86 mpegtsdemux: Also parse TOT (Time Offset Section) 
It's the same as TDT, except with descriptors at the end
 2012-06-05 10:54:27 +02:00
Edward Hervey
f0867c7247 mpegtspacketizer: Avoid alloc/free where possible 
Helps for streams with a lot of sections, like EIT
 2012-06-05 10:54:26 +02:00
Edward Hervey
63f8b970af mpegtsbase/packetizer: Add CAT section handling 
Allows reporting the global EMM
 2012-06-05 10:54:25 +02:00
Edward Hervey
c6035d403c mpegtspacketizer: Avoid usage of GstBuffer internally 
The overhead of creating/using 188 byte GstBuffer from GstAdapter
is too expensive.
We now peek the next packet, and provide a data/size which is only
valid until the packetizerpacket is cleared.

In addition, cleanup all the internal code to deal with that new
behaviour and remove double-checks which are no longer needed.

The section_length is now the corrected section_length (i.e. with
the additional 3 bytes).

Avoid using gst_adapter_prev_timestamp and instead track
the timestamp ourself.
 2012-05-22 17:43:38 +02:00
Edward Hervey
6d01f5f1b3 mpegtspacketizer: Detect PCR wraparound in skew code 
If the received PCR is going backwards (by a safe margin), include
that wraparound for further calculation.

https://bugzilla.gnome.org/show_bug.cgi?id=674536
 2012-05-22 16:51:25 +02:00
Gil Pedersen
fcd8155d87 mpegtsdemux: port to 0.11 
Fixes https://bugzilla.gnome.org/show_bug.cgi?id=674397
 2012-04-20 11:25:31 +02:00
Sebastian Dröge
a1c291ebb6 mpegtsdemux: Revert to 0.10 state as this is unmergeable, also put it into the non-ported plugins again 2012-03-29 17:55:09 +02:00
Sebastian Dröge
860ccd414d Merge remote-tracking branch 'origin/0.10' 
Conflicts:
	NEWS
	RELEASE
	common
	configure.ac
	docs/libs/gst-plugins-bad-libs-sections.txt
	docs/plugins/gst-plugins-bad-plugins.args
	docs/plugins/gst-plugins-bad-plugins.hierarchy
	docs/plugins/gst-plugins-bad-plugins.interfaces
	docs/plugins/inspect/plugin-adpcmdec.xml
	docs/plugins/inspect/plugin-adpcmenc.xml
	docs/plugins/inspect/plugin-assrender.xml
	docs/plugins/inspect/plugin-audiovisualizers.xml
	docs/plugins/inspect/plugin-autoconvert.xml
	docs/plugins/inspect/plugin-bayer.xml
	docs/plugins/inspect/plugin-bz2.xml
	docs/plugins/inspect/plugin-camerabin2.xml
	docs/plugins/inspect/plugin-celt.xml
	docs/plugins/inspect/plugin-dataurisrc.xml
	docs/plugins/inspect/plugin-debugutilsbad.xml
	docs/plugins/inspect/plugin-dtmf.xml
	docs/plugins/inspect/plugin-dtsdec.xml
	docs/plugins/inspect/plugin-dvbsuboverlay.xml
	docs/plugins/inspect/plugin-dvdspu.xml
	docs/plugins/inspect/plugin-faac.xml
	docs/plugins/inspect/plugin-faad.xml
	docs/plugins/inspect/plugin-gsm.xml
	docs/plugins/inspect/plugin-h264parse.xml
	docs/plugins/inspect/plugin-mms.xml
	docs/plugins/inspect/plugin-modplug.xml
	docs/plugins/inspect/plugin-mpeg2enc.xml
	docs/plugins/inspect/plugin-mpegdemux2.xml
	docs/plugins/inspect/plugin-mpegtsdemux.xml
	docs/plugins/inspect/plugin-mpegvideoparse.xml
	docs/plugins/inspect/plugin-mplex.xml
	docs/plugins/inspect/plugin-pcapparse.xml
	docs/plugins/inspect/plugin-rawparse.xml
	docs/plugins/inspect/plugin-rtpmux.xml
	docs/plugins/inspect/plugin-rtpvp8.xml
	docs/plugins/inspect/plugin-scaletempo.xml
	docs/plugins/inspect/plugin-schro.xml
	docs/plugins/inspect/plugin-sdp.xml
	docs/plugins/inspect/plugin-segmentclip.xml
	docs/plugins/inspect/plugin-shm.xml
	docs/plugins/inspect/plugin-videomaxrate.xml
	docs/plugins/inspect/plugin-videoparsersbad.xml
	docs/plugins/inspect/plugin-vp8.xml
	docs/plugins/inspect/plugin-y4mdec.xml
	ext/celt/gstceltdec.c
	ext/dts/gstdtsdec.c
	ext/modplug/gstmodplug.cc
	ext/opus/gstopusenc.c
	gst-libs/gst/video/gstbasevideocodec.c
	gst-libs/gst/video/gstbasevideocodec.h
	gst-libs/gst/video/gstbasevideodecoder.c
	gst-libs/gst/video/gstbasevideodecoder.h
	gst-libs/gst/video/gstbasevideoencoder.c
	gst-libs/gst/video/gstbasevideoencoder.h
	gst/adpcmdec/Makefile.am
	gst/audiovisualizers/gstbaseaudiovisualizer.c
	gst/h264parse/gsth264parse.c
	gst/mpegdemux/mpegtsparse.c
	gst/mpegtsdemux/mpegtsbase.c
	gst/mpegtsdemux/mpegtspacketizer.c
	gst/mpegtsdemux/mpegtsparse.c
	gst/mpegtsdemux/tsdemux.c
	gst/mpegtsdemux/tsdemux.h
	gst/mxf/mxfdemux.c
	gst/rawparse/gstaudioparse.c
	gst/videoparsers/gsth263parse.c
	gst/videoparsers/gsth264parse.c
	sys/d3dvideosink/d3dvideosink.c
	sys/decklink/gstdecklinksink.cpp
	sys/dvb/gstdvbsrc.c
	sys/shm/gstshmsrc.c
	sys/vdpau/h264/gstvdph264dec.c
	sys/vdpau/mpeg/gstvdpmpegdec.c
	tests/examples/opencv/gst_element_print_properties.c
	win32/common/config.h
 2012-03-29 17:41:53 +02:00
Edward Hervey
416b10b991 mpegtspacketizer: Handle rollover in offset calculations 2012-03-05 12:46:13 +01:00
Edward Hervey
a4899af8d6 mpegtspacketizer: Offset calculation 
Allows PCR<=>PTS<=>offset estimation/calculation
Right now the calculation is very naive, but can be extended later on
without disrupting the code in tsdemux/mpegtsbase
 2012-03-01 18:15:51 +01:00
Edward Hervey
39cc29a7d2 mpegtspacketizer: clock fix and minor addition 
* Don't take into account packets that arrived at the same time as
  previous ones for clock skew estimation
* Add convenience method for processing the next ts packet
 2012-03-01 18:15:51 +01:00
Edward Hervey
4bc7cd04c1 mpegtspacketizer: Fix issues with skew code 
* Always try to get a timestamp for the algorithm
* Remove dead variable
* Return proper default value
 2012-02-24 17:47:38 +01:00
Thibault Saunier
6a8d2c45f6 mpegtspacketizer: Estimate clock skew and retimestamps buffers more precisly 
Apply the EPTLA algotithm to estimate clock skew.
Reusing code from  -good/gst/rtpmanager/rtpjitterbuffer.c
 2012-02-24 10:57:09 +01:00
Wim Taymans
21073e98cf port to new memory API 2012-01-25 14:51:25 +01:00
Edward Hervey
6abe2134bf tsdemux/tsparse: Port to 0.11 
This is a naive port that somewhat works but is inefficient.
I need to rethink how to make the best out of GstMemory/GstBuffer
 2011-10-12 18:06:16 +02:00
Janne Grunau
15391b29e1 mpegtsdemux: push based seeking based on PCR 
buffer timestamps are converted to GstClockTime to cover pcr/pts wraps.
multiple pcr/pts wraps are handled with an index which ensures at most
a single pcr wraparound between two entries.
the last seen pcr is recorded to have a nearby index point for short seeks
resuming playback might be delayed if the postion is not a keyframe

TODO: replace manual packet scanning and parsing in the initial duration estimation
 2011-06-07 20:50:34 +02:00
Janne Grunau
f89a0abca0 mpegtsdemux: create function for pcr parsing 2011-06-07 20:50:34 +02:00
Janne Grunau
22ecf13e42 mpegtsdemux: add MPEG TS demuxer rewrite from Edward Hervey 
with contributions from Miquel Angel Farre Guiu and Zaheer Abbas Merali
 2011-02-17 17:56:59 +01:00