Commit graph

74 commits

Author SHA1 Message Date
Stéphane Cerveau
982072ce1d dashsink: Add new sink to produce DASH content
Add static or dynamic mpd with:
- baseURL
- period
- adaptation_set
- representaton
- SegmentList
- SegmentURL
- SegmentTemplate

Support multiple audio and video streams.
Pass conformance test with DashIF.org
2020-01-03 20:50:27 +00:00
Stéphane Cerveau
ac74b042ec dash: Generate an XML content from object.
Add mpd node base class to provide
xml generation facilities for child
objects.
2020-01-03 20:50:27 +00:00
Stéphane Cerveau
c28e7d928d dash: move parser nodes/types to separated files
Rename GstMpdClient to GstMPDClient and use GObject model.

Move nodes to file from gstmpdparser.c:
- GstMPDRootNode
- GstMPDBaseURLNode
- GstMPDUTCTimingNode
- GstMPDMetricsNode
- GstMPDMetricsRangeNode
- GstMPDSNode
- GstMPDSegmentTimelineNode
- GstSegmentTemplateNode
- GstMPDSegmentURLNode
- GstMPDSegmentListNode
- GstMPDPeriodNode
- GstMPDRepresentationNode
- GstMPDsubRepresentationNode
- GstMPDAdaptationSetNode
- GstMPDContentComponentNode
- GstMPDSubsetNode
- GstMPDProgramInformationNode

Move types to gstmpdhelper from gstmpdparser.c:

- GstURLType
- GstDescriptorType
- GstSegmentBaseType
- GstMPDMultSegmentBaseType
- GstMPDRepresentationBaseType

Cleanup naming when possible.
2019-12-05 09:06:37 +00:00
Stéphane Cerveau
86b251b7d1 dash: split mpdparser, mpdclient and xmlhelper
provide a separate namespace for mpd helper
for xml parsing and the real mpd parsing.
2019-12-05 09:06:37 +00:00
Aaron Boxer
6d3429af34 documentation: fixed a heap o' typos 2019-11-05 09:11:25 -05:00
Alex Ashley
015566daec tests/dash_mpd: take account of Period start in expected timestamps
The start of each segment is relative to the Period start, minus
the presentation time offset.

As specified in section 5.3.9.6 of the MPEG DASH specification:
	The value of the @t attribute minus the value of the
	@presentationTimeOffset specifies the MPD start time of
	the first Segment in the series.

Several tests use a Period@start value of 10 seconds, which either
needs to be taken into account when calculating expected timestamps
or have that attribute removed.

This commit uses a mix of updating the timestamps and removing the
start attribute, so that both the case of its presence and absence
is tested.
2019-06-01 21:25:33 +00:00
Alex Ashley
a11f7ed924 dashdemux: include both Period start and presentationTimeOffset in segment start
The start of each segment is relative to the Period start, minus
the presentation time offset.

As specified in section 5.3.9.6 of the MPEG DASH specification:
    The value of the @t attribute minus the value of the
    @presentationTimeOffset specifies the MPD start time of
    the first Segment in the series.

dashdemux was not taking account of presentationTimeOffset and in
some methods was not taking into account the Period start time.
This commit modifies the segment->start value to always be
relative to the MPD start time (zero for VOD,
availabilityStartTime for live streams). This makes all uses of
the segment list consistent.

Fixes #841
2019-06-01 21:25:33 +00:00
Sebastian Dröge
be6afc6a90 tests: Make sure to provide the KEY_UNIT flag always together with the SNAP flags in seeks
SNAP flags alone make no sense and nowadays cause warnings.
2018-06-18 12:18:07 +03:00
Jun Xie
cbcc01173b dashdemux: parse xs:dateTime's timezone indicator
The lexical form of xs:dateTime is YYYY-MM-DDThh:mm:ss[Z|(+|-)hh:mm]
timezone indicator (+|-)hh:mm] needs to be parsed.

https://bugzilla.gnome.org/show_bug.cgi?id=791602
2017-12-18 14:07:36 +01:00
Scott D Phillips
25d2b8a608 tests: dash & adaptivedemux: move iterator variable declaration out of for
This is a c99-ism that gcc 4.8.5 errors on unless -std=c99 is
specified.

https://bugzilla.gnome.org/show_bug.cgi?id=783868
2017-06-17 10:59:42 +03:00
Thiago Santos
22c037df6c tests: dash_mpd: add some inheritance tests
Tests regarding inheritance of segment template attributes
2017-04-15 18:44:04 -07:00
Seungha Yang
a3a12d0978 mpdparser: Report error if Representation is invalid
Spec "5.3.5 Representation" is saying that
id and bandwidth attributes are mandatory fields.

https://bugzilla.gnome.org/show_bug.cgi?id=780569
2017-04-09 10:58:27 +03:00
Sebastian Dröge
5c99f9cf37 gst: Don't declare variables inside the for loop header
This is a C99 feature.
2016-12-13 22:39:01 +02:00
Seungha Yang
e454694f0a mpdparser: Handle invalid external xml link for Period element
Section 5.3.3 in ISO/IEC 23009-1:2014 defines that invalid references
(e.g., invalide URI or cannot be resolved) specified by "@xlink:href" attribute
shall be removed. That means, we should play it without error,
and just ignore the corresponding element.
It's similar to "urn:mpeg:dash:resolve-to-zero:2013".

https://bugzilla.gnome.org/show_bug.cgi?id=774463
2016-11-21 09:43:30 +02:00
Sebastian Dröge
72927c9b77 dash: Fix breakage in unit test caused by gst-indent 2016-11-14 17:00:21 +02:00
Seungha Yang
68e4f919a0 mpdparser: Support multiple Period elements in external xml
External xml could have empty, one or multiple top-level "Period" elements.
Because xml parser cannot parse the multiple top-level elements
(i.e., no root element), we need to wrap a xml in order to make root element.
See also ISO/IEC 23009-1:2014 5.3.2.2

https://bugzilla.gnome.org/show_bug.cgi?id=774357
2016-11-14 16:56:43 +02:00
Philippe Normand
dd0c56b4a2 mpdparser: MS PlayReady ContentProtection parsing
The "pro" (PlayReady Object) element contents are now base64-decoded
and properly stored in Protection events.

https://bugzilla.gnome.org/show_bug.cgi?id=773936
2016-11-04 17:04:59 +02:00
Sebastian Dröge
268c18054d dash: Fix build of unit test 2016-08-26 20:12:21 +03:00
Alex Ashley
dc6e4ccbf9 tests: dashdemux: add test for gst_mpd_client_get_maximum_segment_duration
Add a test of the gst_mpd_client_get_maximum_segment_duration() function
to check that it first checks the MPD@maxSegmentDuration and then falls
back to checking all of the segment durations.

https://bugzilla.gnome.org/show_bug.cgi?id=753751
2016-08-02 12:52:34 +01:00
Florin Apostol
7d8cc26c91 dashdemux: unit testing reproducing segment duration overflow
unit test reproducing https://bugzilla.gnome.org/show_bug.cgi?id=751792

With minor changes by Vincent Penquerc'h.
2016-04-05 17:01:00 +01:00
Florin Apostol
9ccd541980 mpdparser: renamed gst_mpd_client_get_next_segment_availability_end_time to gst_mpd_client_get_next_segment_availability_start_time
The function actually returns the segment availability start time (as defined by the standard).
That is at the end of the segment, but it is called availability start time.

Availability end time is something else (the time when the segment is no longer
available on the server). The function name was misleading.

https://bugzilla.gnome.org/show_bug.cgi?id=757655
2016-02-09 16:49:37 -03:00
Florin Apostol
25c89b12d6 mpdparser: tests: added unit test for getting segment availability when segment timeline is used
https://bugzilla.gnome.org/show_bug.cgi?id=757655
2016-02-09 16:35:44 -03:00
Thiago Santos
cfcba7bc0f tests: dash: fix dash tests after index fix
8e788f2845 broke one of the
dash mpd tests. This updates and fixes it.
2016-02-01 14:36:48 -03:00
Florin Apostol
b2e689890f dashdemux: improve validation of UTCtiming element
gst_mpdparser_parse_utctiming_node does not validate the parsed values completely. The following scenarios are incorrectly accepted:
- elements with no schemeIdUri property should be rejected
- elements with unrecognized UTCTiming scheme should be rejected
- elements with empty values should be rejected

The last one triggers a division by 0 in gst_dash_demux_poll_clock_drift:
clock_drift->selected_url = clock_drift->selected_url % g_strv_length (urls);
because it urls is a valid pointer to an empty array.

https://bugzilla.gnome.org/show_bug.cgi?id=759547
2015-12-16 17:19:50 +01:00
Sebastian Dröge
a878d6e67e dash: Fix unit test after moving of framerates to RepresentationBaseType 2015-12-08 09:53:11 +02:00
Florin Apostol
9a7bf5fbf1 mpdparser: remove gst_mpd_client_check_time_position
https://bugzilla.gnome.org/show_bug.cgi?id=758593
2015-11-24 10:01:58 -03:00
Florin Apostol
c681c33d10 mpdparser: tests: added test for fraction of seconds in availabilityStartTime
https://bugzilla.gnome.org/show_bug.cgi?id=758410
2015-11-23 11:54:37 -03:00
Florin Apostol
ef84f294c0 mpdparser: remove unused functions gst_mpdparser_get_chunk_by_index and gst_mpdparser_find_segment_by_index
https://bugzilla.gnome.org/show_bug.cgi?id=758233
2015-11-19 15:53:30 -03:00
Sebastian Dröge
87b5ad0dfc mpdparser: Also allow '/' in RepresentationID
Used by http://www.bok.net/dash/tears_of_steel/cleartext/stream.mpd

https://bugzilla.gnome.org/show_bug.cgi?id=757903
2015-11-18 19:17:29 +02:00
Florin Apostol
b095026945 mpdparser: tests: added test for gst_mpd_client_get_last_fragment_timestamp_end
The timestamp for last fragment is incorrectly retrieved if segment templates
are used.

https://bugzilla.gnome.org/show_bug.cgi?id=758188
2015-11-18 09:50:26 +02:00
Vincent Penquerc'h
2f8efd1ce3 tests: add a test for MPD file duration parsing
https://bugzilla.gnome.org/show_bug.cgi?id=752336
2015-11-02 11:36:12 +00:00
Vincent Penquerc'h
e48e68416c mpdparser: make durations unsigned where appropriate
The standard does not seem to make any particular explicit not
implicit reference to the signedness of durations, and the code
does not rely on such, nor on the negativity of the -1 value
that's used as a placeholder when a duration property is not
present in the XML.

https://bugzilla.gnome.org/show_bug.cgi?id=750847
2015-10-30 16:29:46 +00:00
Florin Apostol
d6e805a283 dashdemux: inherit bitstreamSwitching from Period to AdaptationSet
https://bugzilla.gnome.org/show_bug.cgi?id=752340
2015-10-30 15:58:36 +00:00
Florin Apostol
590df23cb1 dashdemux: unit testing reproducing inherited segment duration overflow
unit test reproducing https://bugzilla.gnome.org/show_bug.cgi?id=751832
2015-10-30 15:05:28 +00:00
Florin Apostol
013655d886 dashdemux: inherited segment URLs are ignored if they are defined again in a lower SegmentList
According to the standard:
"SegmentBase, SegmentTemplate and SegmentList shall inherit
attributes and elements from the same element on a higher level.
If the same attribute or element is present on both levels,
the one on the lower level shall take precedence over the one
on the higher level."

gst_mpdparser_parse_segment_list_node will now discard any inherited
segment URLs if the parsed element defines some too.

https://bugzilla.gnome.org/show_bug.cgi?id=751832
2015-10-30 14:31:21 +00:00
Florin Apostol
dc04d3d261 dashdemux: tests: added test for multiple BaseURL entries
https://bugzilla.gnome.org/show_bug.cgi?id=757245
2015-10-30 13:00:53 +00:00
Florin Apostol
4632dbe3ae dashdemux: tests: added unit test for 6d1eda9391
Commit 6d1eda9391 fixed the period start
time scaling. This patch updates the unit tests to cover that scenario.

https://bugzilla.gnome.org/show_bug.cgi?id=755105
2015-10-30 12:57:54 +00:00
Alex Ashley
c8ef39cac7 dashdemux: provide a default suggestedPresentationDelay
If MPD@suggestedPresentationDelay is not present in the manifest,
dashdemux selects the fragment closest to the most recently generated
fragment. This causes a playback issue because this choice does not allow
the DASH client to build up any buffer of downloaded fragments without
pausing playback. This is because by definition new fragments appear on
the server in real-time (e.g. if segment duration is 4 seconds, a new
fragment will appear on the server every 4 seconds). If the starting
playback position was n*segmentDuration seconds behind "now", the DASH
client could download up to 'n' fragments faster than realtime before it
reached the point where it needed to wait for fragments to appear on the
server.

The MPD@suggestedPresentationDelay attribute allows a content publisher
to provide a suggested starting position that is behind the current
"live" position.

If the MPD@suggestedPresentationDelay attribute is not present, provide
a suitable default value as a property of the dashdemux element. To
allow the default presentation delay to be specified either using
fragments or seconds, the property is a string that contains a number
and a unit (e.g. "10 seconds", "4 fragments", "2500ms").
2015-10-29 13:26:46 +00:00
Vincent Penquerc'h
7443f35249 dash_mpd: restrict segment template format strings to %0[0-9]*d as per spec
https://bugzilla.gnome.org/show_bug.cgi?id=751735
2015-10-29 12:04:31 +00:00
Florin Apostol
4eea6c3833 dashdemux: segment template parsing: added support for %d
Added support for %d in template identifier.
Added testcases for %d, %3d, %0-4d identifier formats.
2015-10-29 11:58:47 +00:00
Florin Apostol
933d367440 dashdemux: corrected parsing of segment templates
Corrected the parsing of a segment template string.
Added unit tests to test the segment template parsing.
All reported problems are now correctly handled.

https://bugzilla.gnome.org/show_bug.cgi?id=751735
2015-10-29 11:54:34 +00:00
Florin Apostol
566e84cec1 dashdemux: fixed crash when segment timeline list is greater than segment url list
When building the media segment list using a SegmentList node, the
gst_mpd_client_setup_representation function will iterate through the
list of S nodes and will expect to find a matching SegmentUrl node. If
one does not exist, the code made an illegal memory access.

https://bugzilla.gnome.org/show_bug.cgi?id=752496
2015-10-29 10:20:45 +00:00
Florin Apostol
84ff565c88 dashdemux: unit test for missing profiles 2015-10-29 10:20:45 +00:00
Florin Apostol
cdfec06092 dashdemux: parser rejects negative values for mediaPresentationDuration
https://bugzilla.gnome.org/show_bug.cgi?id=752326
2015-10-29 10:20:45 +00:00
Florin Apostol
7c2746f741 dashdemux: corrected parsing of negative values into unsigned data
https://bugzilla.gnome.org/show_bug.cgi?id=752429
2015-10-29 10:20:45 +00:00
Florin Apostol
c763d1e8fd dashdemux: parser rejects XMLs with negative period duration
https://bugzilla.gnome.org/show_bug.cgi?id=752329
2015-10-28 15:41:17 +00:00
Vincent Penquerc'h
60133b1472 mpdparser: check segment lists have either duration or timeline
And add error checking along the way.

Add duration where appropriate so unit tests still pass.

https://bugzilla.gnome.org/show_bug.cgi?id=751650
2015-10-28 15:34:29 +00:00
Vincent Penquerc'h
b8df6cc316 mpdparser: validate representation set identifier
It must have no whitespace, and must comply with RFC 1738 when
used to build a URL.

https://bugzilla.gnome.org/show_bug.cgi?id=750852
2015-10-28 15:11:50 +00:00
Florin Apostol
ebf2a00926 dashdemux: test: added unit test for presentation time offset
https://bugzilla.gnome.org/show_bug.cgi?id=752409
2015-10-02 17:09:50 +03:00
Sebastian Dröge
8169ee8372 dash: Fix unit test after internal API change 2015-09-26 10:50:19 +02:00