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226 commits

Author SHA1 Message Date
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
Thiago Santos
c82606a600 dashdemux: remove unused mutexes 2013-05-08 18:14:41 -03:00
Thiago Santos
737d328bb5 dashdemux: properly reset stream status after a flush 
The stream eos/end of period status must also be reset after a flushing
seek. This makes seeking after EOS work.
 2013-05-08 18:14:41 -03:00
Andre Moreira Magalhaes (andrunko)
fbbf713e45 dashdemux: keep a list of streams periods 
Keep a list of streams per period so that the download loop can keep
downloading while the stream loop is still pushing old period's data.
 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
Andre Moreira Magalhaes (andrunko)
6ecb58c4f8 dashdemux: Remove unused members. 2013-05-08 18:14:40 -03:00
Andre Moreira Magalhaes (andrunko)
497500dbfe dashdemux: Only send newsegment on seek. 2013-05-08 18:14:40 -03:00
Thiago Santos
3bc62ccc51 dashdemux: send segments that overwrite previous ones 
This is only done for seeks, so it is fine
 2013-05-08 18:14:40 -03:00
Andre Moreira Magalhaes (andrunko)
2b83b4410c dashdemux: switch bitrates without switching pads 2013-05-08 18:14:40 -03:00
Andre Moreira Magalhaes (andrunko)
11697b9968 dashdemux: Remove unusued method. 2013-05-08 18:14:40 -03:00
Andre Moreira Magalhaes (andrunko)
daea47d3f4 dashdemux: Set stream need_header after seek and has_data_queued to FALSE when flushing stream. 2013-05-08 18:14:40 -03:00
Thiago Santos
4a9d7f0a9f dashdemux: do not pause/start the stream loop on playing/paused changes 
The demuxer shouldn't care about paused/playing, it should act the
same in both states
 2013-05-08 18:14:39 -03:00
Thiago Santos
2fe509d50a dashdemux: remove property that isn't used anymore 
Remove some pieces of code that are from an old property
that isn't used anymore
 2013-05-08 18:14:39 -03:00
Thiago Santos
460542daaf dashdemux: add a downloadrate utility 
A small struct that keeps a short history of fragment download bitrates
to have an average measure of N last fragments instead of using only
the last downloaded bitrate
 2013-05-08 18:14:39 -03:00
Thiago Santos
28449ce7d1 dashdemux: sprinkling some more log 2013-05-08 18:14:39 -03:00
Thiago Santos
94dcb60127 dashdemux: change bitrates based on the stream bitrate 
Do not use a global bitrate as the sizes of the fragments matter
when calculating the download rate as the connection setup time is
also being taken into the download duration, a smaller fragment
will have a lower bitrate than a larger one.

This avoids switching the bitrates for streams frequently because
of bitrate mismatches
 2013-05-08 18:14:39 -03:00
Thiago Santos
770df6277a dashdemux: refactor to use the uridownloader lib instead of internal copy 2013-05-08 18:14:39 -03:00
Andre Moreira Magalhaes (andrunko)
5efedbff0a dashdemux: Make sure switch_pads won't leak any pad. 2013-05-08 18:14:39 -03:00
Andre Moreira Magalhaes (andrunko)
e92531c8f6 dashdemux: Properly stop download and stream tasks where appropriate. 2013-05-08 18:14:39 -03:00
Thiago Santos
288903a203 dashdemux: avoid an assertion when stopping the pipeline 
Avoids asserting when dataqueues are setting to flushing due
to a pipeline stop during a pad switch.
 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
dbd6bde9d1 dashdemux: track segments in the demuxer 
Use a GstSegment to track the current segment information in the
demuxer.
 2013-05-08 18:14:38 -03:00
Thiago Santos
39924c60a1 dashdemux: remove buffering message emission from dashdemux 
dashdemux shouldn't emit the buffering message as that can pause
the pipeline. It has no proper knowledge of the downstream buffering
status so it can pause the pipeline when it isn't necessary. It should
have an internal buffer for downloading the streams ahead of playback,
but that shouldn't make it able to stop the pipeline for buffering.

A particular case in which this is bad is when a pad switch happens
(changing bitrates for example), the new pads dashdemux creates
will get linked to demuxers and new queues will be created,
these queues are initially empty and dashdemux will quickly
drain its buffers by pushing them to those queues. So it
would have no more buffers internally and would emit a
buffering message with a low ratio, causing the pipeline
to pause when it wouldn't be necessary.
 2013-05-08 18:14:35 -03:00
Thiago Santos
10b5d4d1cc dashdemux: removing unused code 
Cleaning up by removing unused code and variables
 2013-05-08 18:14:35 -03:00
Thiago Santos
0d9b5923af dashdemux: re-enable and fix adaptive switching 
It is still unstable, but at least it works when the switches aren't
happening after every fragment
 2013-05-08 18:14:34 -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
a19c689dfa dashdemux: detect end-of-period correctly 
Detect end of period when there are no more buffers on any of the
streams
 2013-05-08 18:14:34 -03:00
Thiago Santos
3a055ac2d1 dashdemux: Use the smallest queue value to define buffering state 
The smallest queue should be used to prevent blocking the download
thread when a stream has too much data buffered, leaving the other
streams starving from fragments
 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
54542a6000 dashdemux: block waiting for buffers instead of busy wait 
Make the streaming loop block waiting for buffers on the queues instead
of busy waiting eating cpu continuously on a queue length check
 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
27b1abbda3 dashdemux: move the buffers queues to the streams 
Store the buffers separately for each stream, this is clearer than
having a queue with a list of buffers. It also allows easier selection
of buffers to push in later refactors
 2013-05-08 18:14:34 -03:00
Thiago Santos
1556d8cb03 dashdemux: refactor streams data to its own struct 
Keeps code more organized and similar to what other demuxers
usually do
 2013-05-08 18:14:33 -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
f27bb684f7 dashdemux: Remove timing code that delays pushing of fragments 
Fragments should be pushed ASAP as downstream should be responsible for
doing the syncrhonization and proper buffering.

This has the great side effect of fixing most of the seeking A/V sync issues.
 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
6acf2fba8f gstdashdemux: add need_header member to know whether the initialization fragment should be pushed 2013-05-08 18:14:33 -03:00
Louis-Francis Ratté-Boulianne
0bed9a6646 dashdemux: don't wait for the whole duration of a fragment when seeking 2013-05-08 18:14:33 -03:00
Louis-Francis Ratté-Boulianne
489d7a174c dashdemux: switch pads and send header file when a newsegment event is sent 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
David Corvoysier
582aa51fd6 Replaced URL pointing to obsolete Klagenfurt MPD by a new one 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
9d43e33319 dashdemux: implement seeking across Periods 2013-05-08 18:14:32 -03:00
David Corvoysier
f7c6403432 Applied gst-indent 2013-05-08 18:14:32 -03:00
David Corvoysier
e323c099a0 By default, do not forward pad queries upstream, because it may have unforessen side-effects (forwarding the new 1.0 GST_CAPS query would prevent pad linking for instance) 2013-05-08 18:14:32 -03:00
Olivier Blin
d058a7f2b2 plugin: register as dashdemux instead of fragmented 
This fixes conflicts with the HLS plugin, which is also named
fragmented.
When building its registry, gstreamer was picking one or the other
between hls and dashdemux.
 2013-05-08 18:14:31 -03:00
Gianluca Gennari
895e804a86 dashdemux: check if we have received the MPD file in the proper way 2013-05-08 18:14:31 -03:00
Gianluca Gennari
8f13f246e0 mpdparser: silence warning 2013-05-08 18:14:31 -03:00
Olivier Blin
0b5eb519e7 dashdemux: fix printing buffering time and download rate/size 
This was broken on armv7.
 2013-05-08 18:14:31 -03:00
Olivier Blin
bd2784ffbb dashdemux: fix unused-but-set variable 2013-05-08 18:14:30 -03:00
Olivier Blin
cbebb01f23 dashdemux: use new gst_mpd_client_get_next_fragment_duration API 
This fixes build that has been broken by commit
fb9aeac6552021b176a4c4bd07265e02a0b70e0f.

gst_mpd_client_get_target_duration has been removed, and
gst_mpd_client_get_next_fragment_duration should be used instead.
 2013-05-08 18:14:29 -03:00
Gianluca Gennari
f728e424b2 dashdemux: remove FIXME comment 
pad switching across multiple periods works perfectly fine now
and it is done only when there is a change in the CAPS
 2013-05-08 18:14:29 -03:00
Gianluca Gennari
e96cc18ab9 dashdemux: send new-segment events to all pads 2013-05-08 18:14:27 -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
dc5d7d258e dashdemux: use effective segment duration to reschedule the streaming task 
do not assume segment duration is constant

Conflicts:

	ext/dash/gstdashdemux.c
 2013-05-08 18:14:22 -03:00
Gianluca Gennari
cfcd9ffac6 dashdemux: reworked gst_dash_demux_get_buffering_time() to return the effective buffering time 
do not assume the Fragment duration is constant
 2013-05-08 18:14:16 -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
David Corvoysier
41733d8296 Fixed wrong index in fragments 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
David Corvoysier
cf0ab8e1f3 Removed unused function 2013-05-08 18:14:03 -03:00
David Corvoysier
84c8de8ab6 Seek event handling cleanup 2013-05-08 18:14:02 -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
5ade664680 uridownloader: deleted useless declaration of gst_uri_downloader_free() 2013-05-08 18:14:00 -03:00
Gianluca Gennari
122f10669f uridownloader: when possible, reuse existing element to download a new URI 
previously a new element was allocated for each media segment, and it was never freed
 2013-05-08 18:14:00 -03:00
Gianluca Gennari
5b830c3c91 dashdemux: unref caps in function need_add_header() 2013-05-08 18:13:58 -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
cd84aaa9aa dashdemux: fix memory leak in gst_dash_demux_get_next_header() 2013-05-08 18:13:58 -03:00
David Corvoysier
95ee452625 We now only accept actual manifest files, and not any XML file 2013-05-08 18:13:58 -03:00
David Corvoysier
763f4c3fc3 Added a typefind helper for DASH: this commit should be reverted as soon as a proper patch has been submitted to gst-plugins-base 2013-05-08 18:13:57 -03:00
David Corvoysier
29c62f4780 Fixed state machine (again) 2013-05-08 18:13:57 -03:00
David Corvoysier
a7ad12e208 Code refactoring 2013-05-08 18:13:57 -03:00
David Corvoysier
f4756f7cb0 Fixed state machine 2013-05-08 18:13:57 -03:00
David Corvoysier
7f2207732b Improve consistency of the tasks shutdown code 2013-05-08 18:13:57 -03:00
David Corvoysier
28aaff747c Added missing g_list_free 2013-05-08 18:13:57 -03:00
David Corvoysier
30fece810f Do not answer to URI queries 2013-05-08 18:13:56 -03:00
David Corvoysier
0e2c3ffc0b Try queries upstream if we cannot process them 2013-05-08 18:13:56 -03:00
David Corvoysier
089daeba1b Renamed demux->next_stream in demux->next_push 2013-05-08 18:13:56 -03:00
David Corvoysier
943f4fa152 Inlined one-line utility funciton that was called only once 2013-05-08 18:13:56 -03:00
David Corvoysier
3cb7b12cbe Fixed regression after the introduction of the multi-screen support, preventing the pipeline from stopping properly 2013-05-08 18:13:56 -03:00
David Corvoysier
6f5d6f91ff Modified log level of shutdown message 2013-05-08 18:13:56 -03:00
David Corvoysier
90be873ee1 Comments: We don't select a single representation, but a representation for each stream Code: cleanup of gst_get_next_fragment (also renamed in gst_get_next_fragment_set) 2013-05-08 18:13:56 -03:00
David Corvoysier
d3c4c48923 Removed debug trace 2013-05-08 18:13:56 -03:00
David Corvoysier
6be9a30ad8 Added introduction and general design notes 2013-05-08 18:13:56 -03:00
David Corvoysier
35c04708ba Fixed wrong comment 2013-05-08 18:13:56 -03:00
David Corvoysier
6255b2762f Documented gst_dash_demux_download_loop 2013-05-08 18:13:55 -03:00
David Corvoysier
5b6bede189 Commented gst_dash_demux_stream_loop 2013-05-08 18:13:55 -03:00
David Corvoysier
b9d6796cb5 Commented needs_pad_switch 2013-05-08 18:13:55 -03:00
David Corvoysier
54fcbf89f1 Documented the representation switch mechanism 2013-05-08 18:13:55 -03:00
David Corvoysier
7764efb761 Replaced references to playlist (HLS) by references to manifest (DASH) 2013-05-08 18:13:55 -03:00
David Corvoysier
ad22e0da6d Renamed gst_dash_demux_switch_playlist to gst_dash_demux_select_representation and added comments 2013-05-08 18:13:55 -03:00
David Corvoysier
204ea9fc67 Removed obsolete comment 2013-05-08 18:13:55 -03:00
David Corvoysier
ae32818105 Applied gst-indent 2013-05-08 18:13:55 -03:00
David Corvoysier
28215b9e12 Updated README 2013-05-08 18:13:55 -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
fab388c9fd Add the headers to the adaptationsets segments if any one of these changed representation 2013-05-08 18:13:46 -03:00
Hamid ZAKARI
713d02b81a Support Multi languages (need a decodebin2 patch) 2013-05-08 18:13:45 -03:00
Hamid ZAKARI
a4ac4a3117 Remove the "TODO" comment 2013-05-08 18:13:45 -03:00
David Corvoysier
3c937636ee Renamed LICENSE into COPYING 2013-05-08 18:13:44 -03:00
David Corvoysier
79dc12cc05 Updated authors 2013-05-08 18:13:44 -03:00
David Corvoysier
6fc0db0e0b Initial import of gstdashdemux sources 2013-05-08 18:13:43 -03:00