Commit graph

14425 commits

Author SHA1 Message Date
Edward Hervey
34164610b0 mpegtsdescriptor: Fix handling of unknown stream encodings
If we cannot identify the encoding used for a string, return a NULL
string instead of garbage and add a FIXME so we can detect and later
fix it.
2013-07-04 08:45:32 +02:00
Edward Hervey
4fe26740c7 mpegts: Add registered mpeg-ts stream types
These are the values officially registered in the base specification
(H.222.0/13818-1). Later on we can add other enums for other variants

Note that the enum is not used in the structure fields (such as a pmt
stream stream_type field) since it can contain values from other
variants.
2013-07-04 08:45:32 +02:00
Thiago Santos
8babffc750 camerabin: examples: add missing lib to makefile
Fixes initialization of sample application
2013-07-04 02:12:30 -03:00
Thiago Santos
9a38127467 dashdemux: prevent assertion when duration is unknown
Duration from segment being unknown is a issue from the MPD and not
a programming issue, so the assert isn't useful here. Instead check
and return an error code so the caller can fallback to alternatives
2013-07-03 19:11:45 -03:00
Thiago Santos
3030c25aed dashdemux: Fix event leak when parsing manifest fails
Always remember to unref the event before proceeding, in both success
and failure cases
2013-07-03 19:11:11 -03:00
Thiago Santos
788757dc1f dashdemux: various cleanups
Removing unused function, replacing // comments with /* */ and
replacing some GST_WARNING with GST_INFO/_DEBUG as they are meant
to be
2013-07-03 15:34:41 -03:00
Alex Ashley
5ad2a2d161 dashdemux: Change first fragment selection for live streams
When dashdemux selects its first fragment, it always selects the
first fragment listed in the manifest. For on-demand content,
this is the correct behaviour. However for live content, this
behaviour is undesirable because the first fragment listed in the
manifest might be some considerable time behind "now".

The commit uses the host's idea of UTC and tries to find the
oldest fragment that contains samples for this time of day.

https://bugzilla.gnome.org/show_bug.cgi?id=701509
2013-07-03 15:34:30 -03:00
Edward Hervey
51d8fa5860 mpegts: split dvb descriptors/enums into a separate file
We will do the same once we have ATSC/ISDB/... descriptor parsing
2013-07-03 18:52:18 +02:00
Edward Hervey
6a611e5d3d mpegts: Fix TOT section parsing
And use it in example
2013-07-03 18:44:54 +02:00
Edward Hervey
61a8cbae41 examples: Fix a leak 2013-07-03 18:00:55 +02:00
Edward Hervey
982aee25c6 mpegts: Split files and implement free functions
* In order to avoid future clashing between table_id for the various
  mpeg-ts variants, use different enums.
* In order to keep everything clean(ish) and allow for cleaner growth,
  split into different files (will need the same for descriptors later)
* Also ... implement free functions for all table types :)
2013-07-03 17:59:02 +02:00
Edward Hervey
b2335f8d33 win32: back to feature development 2013-07-03 15:31:05 +02:00
Thiago Santos
5c480dfc13 dashdemux: only generate index segment uri if there is a template
Simple fix to avoid an assertion.
2013-07-03 10:23:45 -03:00
Greg Rutz
5920ee2777 dashdemux: Implement inheritance for certain MPD elements
According to the MPEG-DASH spec, certain elements (i.e.
SegmentBase, SegmentTemplate, and SegmentList) should inherit
attributes from the same elements in the containing AdaptationSet
or Period.

Updated the SegmentBase, SegmentTemplate, and SegmentList parsers
to properly inherit attributes from the corresponding elements in
AdaptationSet and/or Period.

https://bugzilla.gnome.org/show_bug.cgi?id=702677
2013-07-03 10:23:45 -03:00
Greg Rutz
5e0ed52880 dashdemux: Properly detect presence of xml attributes
Convert all xml attribute/content parsing functions to return a
boolean value indicating whether or not the attribute/content was
present.  We need this finer-grained control in order to properly
implement the inheritance policies described in the spec

Also fixed several memory leak conditions when handling errors in
the xml attribute/content parsing functions.

https://bugzilla.gnome.org/show_bug.cgi?id=702677
2013-07-03 10:23:45 -03:00
Thiago Santos
467b22c567 dashdemux: change debug message from warning to info
It isn't a warning/issue.
2013-07-03 10:23:45 -03:00
Thiago Santos
94c6497dfa dashdemux: protect from access to empty list data
Check if the list has elements before trying to access the last one
and causing a segfault
2013-07-03 10:23:45 -03:00
Thiago Santos
cd26bd51a1 uridownloader: Simplify locking to fix deadlocks
Use object lock to protect variables from concurrent access and
use download_lock to only allow one download running
2013-07-03 10:23:45 -03:00
Thiago Santos
0a88daaf8e dashdemux: protect against failed header downloads
Avoids criticals when downloaded fragment is NULL
2013-07-03 10:23:45 -03:00
Edward Hervey
b99a91deed examples: GstMpegTS => GstMpegTs 2013-07-03 14:00:58 +02:00
Edward Hervey
b8ad909bd7 dvb: GstMpegTS => GstMpegTs 2013-07-03 14:00:58 +02:00
Edward Hervey
1f2bb15618 mpegtsdemux: GstMpegTS => GstMpegTs 2013-07-03 14:00:58 +02:00
Edward Hervey
c1366efcd6 libs/mpegts: Rename GstMpegTS => GstMpegTs
Sorry for this :( But this makes it more in sync with expected type
naming in gobject (i.e. CamelCase and not CamelMAYBECase).

Also split descriptor type enums into the different variants:
* ISO H.222.0 / 13818-1 (i.e. standard mpeg-ts)
* DVB
* ATSC
* ISDB
* miscellaneous

This will avoid future clashes when specs use the same descriptor type
2013-07-03 13:59:56 +02:00
Edward Hervey
dc160e7ca7 examples: Add an example of a mpeg-ts SI extractor
Serves as an example of usage of the new mpegts library from an
application.

Will parse/dump all sections received on a bus.

Usage is ./tsparse <any gst-launch line using tsdemux or tsparse>

Examples:
  ./tsparse file:///some/mpegtsfile ! tsparse ! fakesink
  ./tsparse dvb://CHANNEL ! tsparse ! fakesink
  ./tsparse playbin uri=dvb://CHANNEL
  ./tsparse playbin uri=file:///some/mpegtsfile
  ...

https://bugzilla.gnome.org/show_bug.cgi?id=702724
2013-07-03 09:17:25 +02:00
Edward Hervey
10c929c795 dvb: Switch to MPEG-TS SI library
Also serves as an example of using mpegts library from a plugin

https://bugzilla.gnome.org/show_bug.cgi?id=702724
2013-07-03 09:17:25 +02:00
Edward Hervey
92edd82c86 mpegtsdemux: Switch to MPEG-TS SI library
* Only mpeg-ts section packetization remains.
* Improve code to detect duplicated sections as early as possible
* Add FIXME for various issues that need fixing (but are not regressions)

https://bugzilla.gnome.org/show_bug.cgi?id=702724
2013-07-03 09:17:25 +02:00
Edward Hervey
3665e8543a gst-libs: New Mpeg-TS support library
Exposes various MPEG-TS (ISO/IEC 13818-1) and DVB (EN 300 468) Section
Information as well as descriptors for usage by plugins and applications.

This replaces entirely the old GstStructure-based system for conveying
mpeg-ts information to applications and other plugins.

Parsing and validation is done on a "when-needed" basis. This ensures
the minimal overhead for elements and applications creating and using
sections and descriptors.

Since all information is made available, this also allows applications
to parse custom sections and descriptors.

Right now the library is targeted towards parsing, but the structures
could be used in the future to allow applications to create and inject
sections and descriptors (for usage by various mpeg-ts elements).

https://bugzilla.gnome.org/show_bug.cgi?id=702724
2013-07-03 09:17:25 +02:00
Olivier Crête
3f26bb9154 dashdemux: Handle case without an initialization segment
If no initialization segment is defined, then don't print a
critical or a warning, just ignore it.

https://bugzilla.gnome.org/show_bug.cgi?id=701961
2013-07-02 01:30:24 -03:00
Thiago Santos
4c89fab390 dash: save 1 or 2 string copies when getting fragment uris
Only create new string if required, saving maybe 1 or 2 str copies per
fragment.
2013-07-01 18:52:08 -03:00
Thiago Santos
764087b4b8 docs: add uridownloader lib to gtk-doc libs
fixes runtime linking error on windows
2013-07-01 18:52:08 -03:00
Thiago Santos
aa1fe88a08 dashdemux: each fragment can have its own index
Return index URI/range to dashdemux from the mpdparser to be able
to download and deliver them downstream for playback.
2013-07-01 18:52:08 -03:00
Thiago Santos
d68fffc217 dashdemux: handle top-level index urls
Parse and provide access to top-level index segments if available.
dashdemux should push those whenever a header is pushed.

Fixes #700489
2013-07-01 18:52:08 -03:00
Arthur Shipkowski
54d87f071c dashdemux: Fix critical error output when Initialization has no URL
Issue evinced by
http://yt-dash-mse-test.commondatastorage.googleapis.com/car-20120827-manifest.mpd
which produces output like ** (gst-launch-1.0:8060): CRITICAL **:
gst_mpdparser_get_initializationURL: assertion `InitializationURL->sourceURL
!= NULL' failed

https://bugzilla.gnome.org/show_bug.cgi?id=700489
2013-07-01 18:51:30 -03:00
Thiago Santos
d9c324c6c7 dashdemux: prevent crash by checking if the segment node is present
Do not try to access range data if there is no segment node
2013-07-01 14:35:02 -03:00
Thiago Santos
d0befd39f0 dash: use same debug category for dashdemux and the mpd parser
Makes debugging easier
2013-07-01 14:22:02 -03:00
Thiago Santos
4f17112392 dashdemux: add support for range based segments
Use the mediaRange information and pass it to the uridownloader
to correctly download only the segment ranges indicated in the
MPD

https://bugzilla.gnome.org/show_bug.cgi?id=702206
2013-07-01 14:22:01 -03:00
Thiago Santos
e76f3e95fd uridownloader: add support for range based downloads
Adds a new API gst_uri_downloader_fetch_uri_with_range that allows
downloading only a byte range from an URI. It uses a seek event
sent to the source to signal the range to be downloaded.

https://bugzilla.gnome.org/show_bug.cgi?id=702206
2013-07-01 14:22:01 -03:00
Sreerenj Balachandran
65758debf1 h264parser: Fix the return value type for the SEI palyload parsing methods.
The return value type of SEI payload parsing functions
are GstH264ParserResult.

https://bugzilla.gnome.org/show_bug.cgi?id=695475
2013-07-01 11:24:17 +02:00
Olivier Crête
ad7ffe64a6 srtp: Don't require a key if both auth and cipher are null 2013-06-28 20:35:16 -04:00
Olivier Crête
47a6118fbc srtp: Move the enums to the common header
The types are used in both the encoder and decoder
2013-06-28 20:35:15 -04:00
Olivier Crête
4d7a186513 srtp: Remove unused code 2013-06-28 20:13:38 -04:00
Andoni Morales Alastruey
977bf98b44 frei0r: add the build prefix path in the search dirs 2013-06-28 12:40:52 +02:00
Greg Rutz
45111f2efe dashdemux: Cleanup memory allocation/deallocation
Ensure that g_free/xmlFree is used correctly based on how the
memory was allocated.

When deallocating GLists, there were many places that were using
g_list_foreach and g_list_free.  Converted these occurrences to
call g_list_free_full.

Add NULL checks to all xmlFree calls since the documentation does
not guarantee that passing NULL is safe

In places where we are strdup'ing memory allocated by libxml2,
changed those calls to use xmlMemStrdup().

There were several places where we were missing g_slice_free when
deallocating a top-level node structure.

https://bugzilla.gnome.org/show_bug.cgi?id=702837
2013-06-25 20:53:17 -03:00
Edward Hervey
358a68e65b mpegdesc: Extend list of known descriptors
Add the various ATSC ones
2013-06-24 14:55:28 +02:00
Edward Hervey
26689fc437 mpegtsbase: Only warn for added streams when needed
We use add_stream(stream_type:-1) to ensure a programs' PCR Stream is
also taken into account. For most programs this will re-use an
existing ES stream.

So only warn that we are re-adding a stream if it was already present
AND it is not to ensure the PCR stream is taken into account.
2013-06-24 08:24:58 +02:00
Edward Hervey
f9b3b46ab5 mpegtspacketizer: Speed up section parsing
Only create subtables when needed. It was previously creating one every
single time ... to check if one was present.
And speed up code to detect whether a subtable was already present or not.

Overall makes section pushing 2 times faster.
2013-06-24 07:49:34 +02:00
Edward Hervey
15e3afc099 mpegdesc: Extend list of known descriptors
From ITU-T H222.0 (06/2012). Freely available from itu.int
2013-06-24 07:49:34 +02:00
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
b00192d7c0 codecparsers: Fix gtk-doc
Detected by initial pre-run of gi-scanner.
2013-06-23 11:46:01 +02:00
Sebastian Dröge
21ccbbffe5 daaladec: Add decoder element 2013-06-23 11:32:42 +02:00