Commit graph

254 commits

Author SHA1 Message Date
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
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
Olivier Crête
220f075423 dashdemux: Announce correct mpegts caps 2013-05-15 22:24:29 -04:00
Thiago Santos
919cb34fee dash: do not use deprecated glib mutex API 2013-05-08 18:14:46 -03:00
Thiago Santos
34e1b59eca dashdemux: fixing compiler warnings about print formats 2013-05-08 18:14:46 -03:00
Thiago Santos
d9baed8302 dash: mpdparser: do not cleanup xml lib too early
The xmlCleanupParser function seems to cleanup all statically
allocated libxml variables, making it unusable. We can't guarantee
that dashdemux won't need it anymore, so better not call it.
2013-05-08 18:14:42 -03:00
Thiago Santos
14feeb3ccb dashdemux: reimplementing live streams manifest updates
Manifest updates should be done periodically for live streams,
this patch makes the demuxer create a new manifest client for
the new version and transfers the stream position to the new
one, discarding the old one afterwards.
2013-05-08 18:14:42 -03:00
Thiago Santos
b01a3729c0 dash: mpdparser: allow periods without start time for live streams
Live streams can have undefined start times for the periods and
mpdparser can let that pass instead of erroring out
2013-05-08 18:14:41 -03:00
Thiago Santos
cff4498f7c dash: mpdparser: use guint64 for timestamps
The timestamps can be pretty big, so use guint64 for them
2013-05-08 18:14:41 -03:00
Thiago Santos
a53fd87508 dashdemux: mpd parsing: fix query parameter parsing
Try harder to detect URL parameters and split them to accomodate
the fragment url in the concat:

base-url + fragment-url + url-parameters
2013-05-08 18:14:41 -03:00
Thiago Santos
4ca530f2fe dashdemux: plug some leaks
Add some missing free/unrefs spotted by valgrind
2013-05-08 18:14:41 -03:00
Andre Moreira Magalhaes (andrunko)
b9272dc0e6 dashdemux: Properly parse base uri from mpd. 2013-05-08 18:14:40 -03:00
Thiago Santos
770df6277a dashdemux: refactor to use the uridownloader lib instead of internal copy 2013-05-08 18:14:39 -03:00
Thiago Santos
83c0e1e25d dashdemux: download the next fragment with smaller timestamp
Instead of downloading 1 fragment per stream per download loop,
select the stream with the earlier timestamp and get a fragment
only for that one.

The old algorithm would lead to problems when the fragment durations
were too different for streams.
2013-05-08 18:14:39 -03:00
Thiago Santos
2d85107299 dashdemux: correctly signal EOS on manifest end
Put EOS on the streams queues after the last fragment from the
last period for each stream. This way we keep it serialized
with the buffers and it will work when streams have different
ending times
2013-05-08 18:14:34 -03:00
Thiago Santos
9777fc5cb5 dash: fix parsing of streams to get correct fragment durations
Use the current stream base time instead of the 0th stream base time
to get default duration for fragments.
2013-05-08 18:14:34 -03:00
Thiago Santos
80c6973319 dashdemux: fix seeking on multiple streams
Each stream has its own durations and timestamps, the fragment number
is different for each stream when seeking, so the seek has to be done
for all streams, rather than on a single stream and propagated to
others
2013-05-08 18:14:34 -03:00
Thiago Santos
7330225ac8 dashdemux: Replace GQueue by GstDataQueue
GstDataQueue has proper locking and provides functions to limit the
size of the queue. Also has blocking calls that are useful to
our multithread scenario in Dash.
2013-05-08 18:14:34 -03:00
Thiago Santos
f46ba44e99 dash: do not try to print a pointer as a string 2013-05-08 18:14:33 -03:00
Thiago Santos
a1447a8ede dash: fixing build warnings
Also running through gst-indent
2013-05-08 18:14:33 -03:00
Louis-Francis Ratté-Boulianne
04004cdf65 dashdemux: various fixes 2013-05-08 18:14:33 -03:00
David Corvoysier
c901f610c2 Applied gst-indent 2013-05-08 18:14:33 -03:00
Gianluca Gennari
c988ee3a4b mpdparser: fix escape sequence in URL template resolving 2013-05-08 18:14:33 -03:00
Gianluca Gennari
470c860ffa mpdparser: do not switch pads when bitstreamSwitching = true 2013-05-08 18:14:32 -03:00
Gianluca Gennari
e0c55050e1 dashdemux: complete support for manifest file updates 2013-05-08 18:14:32 -03:00
Gianluca Gennari
7092a9c1ac dashdemux: add support for manifest file updates
- the MPD file is updated in the download loop (only if we have a "dynamic" MPD and minimumUpdatePeriod is valid);
- properly LOCK/UNLOCK the GstMpdClient;
2013-05-08 18:14:32 -03:00
Gianluca Gennari
7371b7997b dashdemux: new API to set/get segment index and period index
TODO: rework segment selection to support Representations or Adaptation Sets with segments not aligned
2013-05-08 18:14:32 -03:00
Gianluca Gennari
e7fad847bb dashdemux: new API to load the stream Period with a given index
this avoids to fiddle with stream internals in the code
2013-05-08 18:14:32 -03:00
Gianluca Gennari
8f13f246e0 mpdparser: silence warning 2013-05-08 18:14:31 -03:00
Gianluca Gennari
9387365fc9 dashdemux: reworked the API to retrieve fragment timestamp, fragment duration and media presentation duration
This was necessary to support variable-duration Fragments.

in the new API:
- gst_mpd_client_get_current_position returns the timestamp of the NEXT fragment to download;
- gst_mpd_client_get_next_fragment_duration returns the duration of the next fragment to download;
- gst_mpd_client_get_media_presentation_duration returns the mediaPresentationDuration from the MPD file;

also there is a new internal parser function:
- gst_mpd_client_get_segment_duration extracts the constant segment duration from the MPD file
(only used when there is no SegmentTimeline syntax element in the current representation)

In gst_mpd_client_get_next_fragment, we set the timestamp/duration of the fragment just downloaded
copying the values from the corresponding GstMediaSegment.

TODO: rework SEEKING to support seeking across different Periods.
2013-05-08 18:14:25 -03:00
Gianluca Gennari
0abd777257 dashdemux: complete support for Media Presentations with several Periods
- Periods are played in sequence, from PeriodStart to PeriodEnd
- seamless switching from one Period to the next one works fine;
- the 'new-segment' generation is broken, so if we need to switch pads for a new Period there is a crash;
2013-05-08 18:14:10 -03:00
Gianluca Gennari
9d09e99ebe mpdparser: initial support for Media Presentations made of several Periods
- build a list of the available Periods with their start and duration time
- add the list of GstStreamPeriod in the GstMpdClient data struct
- remove cur_period from GstMpdClient and introduce an API to get the current GstStreamPeriod
- several API clean-ups
2013-05-08 18:14:10 -03:00
Olivier Blin
ba3bd1c69a mpdparser: support BaseURL for SegmentURL using mediaRange
This is used in big_buck_bunny_CappedVBR_Multirate_4s_0_AudioVideo_MainProfile.mpd
2013-05-08 18:14:10 -03:00
Olivier Blin
767a5ebed0 mpdparser: factorize adding range parameter to URL 2013-05-08 18:14:08 -03:00
Gianluca Gennari
53f383eff0 dashdemux: reworked caps detection
also reworked the API to extract audio/video parameters from the manifest file
(mimeType, width, height, rate, num channels)
2013-05-08 18:14:06 -03:00
Gianluca Gennari
fe05060044 dashdemux: do not send bogus duration messages when mediaPresentationDuration is unknown 2013-05-08 18:14:03 -03:00
Gianluca Gennari
fba69179e4 mpdparser: support SegmentTimeline syntax also for list-based media segment generation 2013-05-08 18:14:03 -03:00
Gianluca Gennari
362b5e9446 mpdparser: add support for SegmentTimeline syntax elements
build the list of segments to be played using the SegmentTimeline syntax, if present
bugfixes:
- for dynamic MPD files, when mediaPresentationDuration is not present use minimumUpdatePeriod instead
- do not add a spurious '$' when building an URL from a template like "$Bandwidth$/init.mp4v"
- introduce gst_mpd_client_add_media_segment() to avoid code duplication
2013-05-08 18:14:03 -03:00
Gianluca Gennari
8e9ba056d7 mpdparser: fix memory leak in gst_mpd_client_get_next_fragment_set()
we have to free next_fragment_uri
2013-05-08 18:14:03 -03:00
Gianluca Gennari
b580ee8cd7 dashdemux: fix playing of single-segment media streams
other fixes:
- fixed a buffering bug: now we stop buffering when we reach the end of manifest
- now gst_mpd_client_get_target_duration() always returns a valid duration
(in case of single-segment streams, we return either Period duration or mediaPresentation duration)
TODO: support SegmentTimeline
2013-05-08 18:14:02 -03:00
Gianluca Gennari
3726ff73ad dashdemux: fix extraction of SegmentTemplate->initialization in gst_mpd_client_get_next_header()
now the following MPD files are properly supported:

http://dash.edgesuite.net/adobe/hdworld_dash/HDWorld-1600.mpd
http://dash.edgesuite.net/adobe/hdworld_dash/HDWorld.mpd
2013-05-08 18:13:58 -03:00
Gianluca Gennari
b4057976be mpdparser: support MPD files with SegmentBase elements encoded inside a SegmentList element
also properly support MPD files without any Initialization segment
2013-05-08 18:13:55 -03:00
Gianluca Gennari
375634f669 mpdparser/dashdemux: fixed get_width, get_height, get_audio_rate, get_num_audio_channels API functions
the actual values now can be extracted also from the AdaptationSet element;
checking NULL structs for better robustness;
2013-05-08 18:13:55 -03:00
Gianluca Gennari
98a41f2c9e mpdparser: added support for single-segment streams with the URL encoded in the baseURL syntax element 2013-05-08 18:13:54 -03:00
Gianluca Gennari
779bf29879 mpdparser: added lang attribute to ProgramInformation node 2013-05-08 18:13:52 -03:00
Gianluca Gennari
94644fa82e mpdparser: added support for Accessibility, Role, Rating, Viewpoint elements to AdaptationSet node
those are DescriptorType elements, so they are just parsed and dumped for now;
2013-05-08 18:13:50 -03:00
Gianluca Gennari
416ea67979 mpdparser: support multiple ProgramInformation nodes
now we keep a list of ProgramInformation nodes for each Period node
2013-05-08 18:13:48 -03:00
Gianluca Gennari
dd198bc86d mpdparser: fixed parsing of SegmentList syntax element, and eliminated Represention node list from Period node
SegmentList nodes are allowed into Period, AdaptationSet or Representation nodes
and there is at most 1 element, so no need to keep a list;

Period nodes cannot have any Represention elements, as AdaptationSet nodes are mandatory;
this breaks compatibility with some legacy DASH test sequences.
2013-05-08 18:13:48 -03:00
Gianluca Gennari
8e3092661a mpdparser: fixed return with no value
gstmpdparser.c: In function ‘gst_mpdparser_get_list_and_nb_of_audio_language’:
gstmpdparser.c:2891: warning: ‘return’ with no value, in function returning non-void
2013-05-08 18:13:48 -03:00
Gianluca Gennari
7330bbfa7a mpdparser.c/.h: changed license from dual MIT/LGPL 2.0 to LGPL 2.1
uniformed licencinsing to the other libraries in the dashdemux project
2013-05-08 18:13:48 -03:00
hzakari
ec44485510 Optimize the two functions that return the number and the list of languages in a single function 2013-05-08 18:13:48 -03:00
Hamid ZAKARI
713d02b81a Support Multi languages (need a decodebin2 patch) 2013-05-08 18:13:45 -03:00
David Corvoysier
6fc0db0e0b Initial import of gstdashdemux sources 2013-05-08 18:13:43 -03:00