Commit graph

349 commits

Author SHA1 Message Date
Thiago Santos
731ab94cc3 adaptivedemux: handle snap seeks
Adaptive demuxers need to start downloading from specific positions
(fragments) for every stream, this means that all streams can snap-seek
to a different position when requested. Snap seeking in this case will
be done in 2 steps:

1) do the snap seeking on the pad that received the seek event and
   get the final position

2) use this position to do a regular seek on the other streams to
   make sure they all start from the same position

More arguments were added to the stream_seek function, allowing better control
of how seeking is done. Knowing the flags and the playback direction allows
subclasses to handle snap-seeking.
And also adds a new return parameter to inform of the final
selected seeking position that is used to align the other streams.

https://bugzilla.gnome.org/show_bug.cgi?id=759158
2016-02-04 14:05:08 -03:00
Thiago Santos
d4b4069041 dashdemux: only update current reading position when needed
If the seek doesn't set the start/stop position, no need to
reposition the download index.
2016-02-01 14:36:48 -03:00
Thiago Santos
fc72e48a48 dashdemux: respect seeking parameter
Instead of using the segment values, use the parameter
requested in the seeking argument
2016-02-01 14:36:48 -03:00
Florin Apostol
88f509a710 dashdemux: added check that availabilityStartTime is present for live streams
https://bugzilla.gnome.org/show_bug.cgi?id=757602
2016-01-18 15:12:07 -03:00
Thiago Santos
b7a0be23c6 adaptivedemux: replace ghostpad with a standard pad
Handling the ghostpad and its internal pad was causing more issues
than helping because of their coupled activation/deactivation
actions.

As we have to install custom chain,event and query functions it is
better to use a floating sink pad internally in the demuxer and just
use those pad functions to push through a standard pad in the demuxer

https://bugzilla.gnome.org/show_bug.cgi?id=757951
2016-01-15 11:32:37 -03:00
Florin Apostol
ef06d2a855 dashdemux: removed unnecessary space trimming in gst_dash_demux_parse_http_head
sscanf has removed all spaces when it has constructed zone string. There is
no need to search for leading spaces.

https://bugzilla.gnome.org/show_bug.cgi?id=759743
2015-12-28 14:10:58 +02:00
Florin Apostol
09b21eacae dashdemux: accept 2 or 4 digit year when using HTTP HEAD for calculating clock compensation
Convert year from 2 digits to 4 digits in gst_dash_demux_parse_http_head

https://bugzilla.gnome.org/show_bug.cgi?id=759743

Also updated references to Rfc822 to Rfc5322
2015-12-28 14:10:58 +02:00
Florin Apostol
f85fc4a543 dashdemux: clock_cond is not used and should be removed
There are no threads waiting on clock_cond. It is just initialised and
signalled. It should be removed.

https://bugzilla.gnome.org/show_bug.cgi?id=759537
2015-12-16 11:45:21 +01:00
Florin Apostol
7c1b511e96 adaptivedemux: fixed clock compensation in get_fragment_waiting_time
Clock compensation is calculated in usec but is added to a GstClockTime value.

https://bugzilla.gnome.org/show_bug.cgi?id=759534
2015-12-16 11:36:35 +01:00
suhwang.kim
6cbaec7593 dashdemux: Suggestion for setting the framerate information.
Dashdemux has set the width and height information from MPD manifest.
Some embedded devices which are not insufficient H/W resources need more information such as framerate
to assign H/W resources. So I suggested that dashdemux also needs to set the framerate information from MDP manifest.

https://bugzilla.gnome.org/show_bug.cgi?id=758515
2015-12-08 09:51:02 +02:00
Jimmy Ohn
7093ad482b dashdemux: Add binary search for stream_sidx_seek
Add binary search to optimize in stream_sidx_seek.

https://bugzilla.gnome.org/show_bug.cgi?id=749653
2015-11-19 16:07:31 -03:00
Florin Apostol
fe6adec702 dashdemux: marked PROP_BANDWIDTH_USAGE property as deprecated
https://bugzilla.gnome.org/show_bug.cgi?id=753890
2015-10-30 15:25:14 +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
Florin Apostol
e7745a5720 dashdemux: improve detection of stream language
Improved the detection of stream's language if the AdaptationSet
contains more than 1 ContentComponent

https://bugzilla.gnome.org/show_bug.cgi?id=752367
2015-10-29 12:14:50 +00:00
Chris Bass
69f86e51b2 dashdemux: create src pads for subtitle streams.
Create src pads for Representations that contain timed-text subtitles,
both when the subtitles are encapsulated in ISO BMFF (i.e., the
Representation has mimeType "application/mp4") and when they are
unencapsulated (i.e., the Representation has mimeType
"application/ttml+xml").

https://bugzilla.gnome.org/show_bug.cgi?id=747774
2015-09-26 00:50:55 +02:00
Sebastian Dröge
93d85bd361 dashdemux: Implement lazy-loading of external periods
https://bugzilla.gnome.org/show_bug.cgi?id=752230
2015-09-25 23:52:28 +02:00
Sebastian Dröge
572e54574b mpdparser: Store an URI downloader in the parser for downloading additional MPD resources if needed
https://bugzilla.gnome.org/show_bug.cgi?id=752230
2015-09-25 23:52:28 +02:00
Sebastian Dröge
7c9525830e dashdemux: Properly handle relative and non-HTTP URIs for the headers/indices
gst_uri_join_strings() will return the second parameter if it is an absolute
URI. No need to do a (wrong) check if the URI is absolute or not beforehand.

https://bugzilla.gnome.org/show_bug.cgi?id=755134
2015-09-25 23:52:28 +02:00
Thiago Santos
bd710e5e1b dashdemux: fix return when trying to advance in subfragmented stream
Even if it doesn't actually advance the subfragment in the default way
for streams that have subfragments, it can help the base class to return
EOS when there is no more fragments instead of signaling it that it should
continue downloading.

https://bugzilla.gnome.org/show_bug.cgi?id=755042
2015-09-15 12:46:31 -03:00
Sebastian Dröge
0d0455e346 dashdemux: Export the period start time to the base class
https://bugzilla.gnome.org/show_bug.cgi?id=754222
2015-09-14 19:53:03 +02:00
Thiago Santos
cc599bb5b5 dashdemux: also check for subfragments on has_next_fragment
In dash isombff profile the fragment is split into subframents where
bitrate switching is possible. Also take that into consideration
when checking if a stream has next fragments.
2015-09-14 13:56:10 -03:00
Tim-Philipp Müller
ef7f5fc4c7 dashdemux: don't meddle with the class struct from an instance
Fix some very dubious code. The class methods should always
be set, and the instance-specific check should then be done
inside the method. For data_received that's there already, for
finish_fragment we need to add it.

https://bugzilla.gnome.org/show_bug.cgi?id=753937
2015-08-27 00:35:02 +01:00
Thiago Santos
ae5befef5f dashdemux: fix off by one seeking issue
When seeking to the last second of a mpd it would reject the seek
because the comparison was < instead of <=

This fails the important use case of seeking to the end of a file
to play it back in reverse from the end
2015-08-16 08:49:35 -03:00
Alex Ashley
93edd99bf7 dashdemux: add support for HTTP HEAD method of time sync
The urn:mpeg:dash:utc:http-head:2014 method of time synchronisation
uses an HTTP HEAD request to a specified URL and then parses the
Date: HTTP response header.

This commit adds support to dashdemux for this method of time
synchronisation by making a HEAD request and then parsing the Date:
response.

This commit adds support to gstfragment to return the HTTP headers
and to uridownloader to support HEAD requests. To avoid creating a
new API, the RANGE get function is re-used (abused?) with start=-1
and end=-1 to indicate a HEAD request.

https://bugzilla.gnome.org/show_bug.cgi?id=752413
2015-08-14 06:47:21 -03:00
Alex Ashley
1640ee2b33 dashdemux: post-review fixup of UTCTiming element
This commit addresses the following items from the code review:
    use a portable way to define NTP_TO_UNIX_EPOCH,
    fix memory leak on error, and
    add documentation to UTCTiming parse functions

Using LL is not portable, so the G_GUINT64_CONSTANT needs to be instead.

If an error occurs during DNS resolution, the GError was not being
released, causing a memory leak.

https://bugzilla.gnome.org/show_bug.cgi?id=752413
2015-08-14 06:47:20 -03:00
Alex Ashley
95c705ae8f dashdemux: add support for UTCTiming elements for clock drift compensation
Unless the DASH client can compensate for the difference between its
clock and the clock used by the server, the client might request
fragments that either not yet on the server or fragments that have
already been expired from the server. This is an issue because these
requests can propagate all the way back to the origin

ISO/IEC 23009-1:2014/Amd 1 [PDAM1] defines a new UTCTiming element to allow
a DASH client to track the clock used by the server generating the
DASH stream. Multiple UTCTiming elements might be present, to indicate
support for multiple methods of UTC time gathering. Each element can
contain a white space separated list of URLs that can be contacted
to discover the UTC time from the server's perspective.

This commit provides parsing of UTCTiming elements, unit tests of this
parsing and a function to poll a time server. This function
supports the following methods:
    urn:mpeg:dash:utc:ntp:2014
    urn:mpeg:dash:utc:http-xsdate:2014
    urn:mpeg:dash:utc:http-iso:2014
    urn:mpeg:dash:utc:http-ntp:2014

The manifest update task is used to poll the clock time server,
to save having to create a new thread.

When choosing the starting fragment number and when waiting for a
fragment to become available, the difference between the server's idea
of UTC and the client's idea of UTC is taken into account. For example,
if the server's time is behind the client's idea of UTC, we wait for
longer before requesting a fragment

[PDAM1]: http://www.iso.org/iso/home/store/catalogue_tc/catalogue_detail.htm?csnumber=66068

dashdemux: support NTP time servers in UTCTiming elements

Use the gst_ntp_clock to support the use of an NTP server.

https://bugzilla.gnome.org/show_bug.cgi?id=752413
2015-08-14 06:47:20 -03:00
Florin Apostol
93c10d3f0e dashdemux: Fix leak in gst_dash_demux_stream_update_fragment_info()
The gst_dash_demux_stream_update_fragment_info function could call
gst_dash_demux_stream_update_headers_info function twice. The
gst_dash_demux_stream_update_headers_info function will set header_uri and
index_uri to some newly allocated strings. The values set by the first call of
gst_dash_demux_stream_update_headers_info will leak when the function is
called for a second time.

The solution is to call gst_adaptive_demux_stream_fragment_clear before the
second call of gst_dash_demux_stream_update_headers_info

https://bugzilla.gnome.org/show_bug.cgi?id=753188
2015-08-06 01:24:28 +03:00
Alex Ashley
71a1e3669a dashdemux: add support for generating Protection events from ContentProtection elements
If a ContentProtection element is present in an AdaptationSet element,
send Protection events on the source pad, so that qtdemux can use this
information to correctly generate its source caps for DASH CENC
encrypted streams.

This allows qtdemux to support CENC encrypted DASH streams where the
content protection specific information is carried in the MPD file
rather than in pssh boxes in the initialisation segments.

This commit adds a new function to the adaptivedemux base class to allow
a GstEvent to be queued for a stream. The queue of events are sent the
next time a buffer is pushed for that stream.

https://bugzilla.gnome.org/show_bug.cgi?id=705991
2015-07-20 16:04:22 +01:00
Luis de Bethencourt
a01133dd8f dashdemux: remove redundant else statement
Else statement is redundant when the if block finishes with an return.
2015-07-08 11:33:04 +01:00
Sebastian Dröge
9e8e1c452d dashdemux: Seek on the new streams if the seek caused a period switch
Seeking on the old streams is pointless, they are going to be freed on the
next opportunity.
2015-06-25 23:35:02 +02:00
Thiago Santos
53451500ee dashdemux: avoid assertion when splitting buffer
Pass size=-1 as is if that is the case instead of subtracting
the offset. Otherwise we have an invalid size passed for that
buffer.
2015-05-29 09:02:42 -03:00
Suhwang Kim
f6cc8d13e0 dashdemux: fix outdated example launch line
https://bugzilla.gnome.org/show_bug.cgi?id=749809
2015-05-25 11:12:47 +01:00
Jimmy Ohn
be90a12916 dashdemux: remove unnecessary semicolon
https://bugzilla.gnome.org/show_bug.cgi?id=749691
2015-05-22 09:40:35 +01:00
Thiago Santos
f4789d0430 dashdemux: avoid busy-looping when waiting for new fragment
When all fragments have already been downloaded on a live stream
dashdemux would busy loop as the default implementation of
has_next_fragment would return TRUE. Implement it to correctly
signal if adaptivedemux should wait for the manifest update before
trying to get new fragments.
2015-05-13 13:39:32 -03:00
Thiago Santos
23ad922b64 dashdemux: Improve live stream manifest update repositioning
When updating the manifest the timestamps on it might have changed a little
due to rounding and timescale conversions. If the change makes the timestamp
of the current segment to go up it makes dashdemux reposition to the previous
one causing one extra unnecessary download.

So when repositioning add an extra 10 microseconds to cover for that rounding
issues and increase the chance of falling in the same segment.

Additionally, also improve the time used when the client is already after the
last segment. Instead of using the last segment starting timestamp use the
final timestamp to make it reposition to the next one and not to the one that
has already been downloaded.
2015-05-13 13:39:31 -03:00
Thiago Santos
d617139ee7 dashdemux: reuse seeking function to reduce repeated code
Instead of writing a seek routine, just use the mpdparser function.

Also remove function that is not needed anymore
2015-05-13 13:35:14 -03:00
Thiago Santos
57a2105a31 dashdemux: refactor segment iteration for better performance
Segments are now stored with their repeat counts instead of spanding
them to multiple segments. This caused advancing to the next segment
using a single index to have to iterate over the whole list every time.

This commit addresses this by storing both the segment index as well
as the repeat index and makes advancing to next segment just an
increment of the repeat or the segment index.
2015-05-13 13:35:14 -03:00
Sebastian Dröge
0cd3938345 adaptivedemux: Allow subclasses to override how a new manifest would be downloaded 2015-04-23 17:47:18 +02:00
Yujin Lee
218a89fcd9 dashdemux: enable playback of content with text streams
There is a playback error when trying to play a content that
has 'application' mimeType. This commit prevents an exception from
setup text streams.

https://bugzilla.gnome.org/show_bug.cgi?id=747525
2015-04-13 09:24:53 -03:00
Mathieu Duponchelle
bd70c73a8a dashdemux: implement get_presentation_offset.
To account for presentationTimeOffset as per section 7.2.1 .

https://bugzilla.gnome.org/show_bug.cgi?id=745455
2015-03-10 15:17:37 +01:00
Thiago Santos
81b555838a dashdemux: protect against malformed isombff format
Be more careful around malformed mpds that announce using
isombff profile but actually are regular mpds
2015-02-18 08:19:59 -03:00
Thiago Santos
a48a361256 dashdemux: depracate bandwidth-usage in favor of bitrate-limit
Bitrate-limit is already available in the baseclass and, even though
the bandwidth-usage name is better, hls and mss already used
bitrate-limit. This patch deprecates the bandwidth-usage and maps
it to the baseclass bitrate-limite.
2015-02-17 11:12:42 -03:00
Mathieu Duponchelle
7ca6d9634a dashdemux: Fix handling of live streams with timeshift buffers.
By implementing get_live_seek_range.

As shown by :

gst-validate-1.0 playbin \
uri=http://dev-iplatforms.kw.bbc.co.uk/dash/news24-avc3/news24.php

This patch handles live seeking, by setting a live seek range
comprised between now - timeShiftBufferDepth and now.

The inteersting thing with this stream is that one can actually
ask fragments up to availabilityStartTime, but it seems quite clear
in the spec that content is only guaranteed to exist up to
timeShiftBufferDepth.

One can test live seeking this way :

gst-validate-1.0 playbin \
uri=http://dev-iplatforms.kw.bbc.co.uk/dash/news24-avc3/news24.php \
--set-scenario seek_back.scenario

with scenario being:

description, seek=true
seek, playback-time=position+5.0, start="position-600.0",
flags=accurate+flush

This example will play the stream, wait for five seconds, then seek back
to a position 10 minutes earlier.

https://bugzilla.gnome.org/show_bug.cgi?id=744362
2015-02-12 22:47:26 +01:00
Thiago Santos
85bb450a44 dashdemux: use audio_%02u and video_%02u names for pads
Instead of using the default ghostpad%u naming. The audio_/video_
names are more common in demuxers
2015-01-26 18:03:40 -03:00
Thiago Santos
229a15b393 adaptivedemux: refactor chunk downloading flow
Add more power to the chunk_received function (renamed to data_received)
and also to the fragment_finish function.

The data_received function must parse/decrypt the data if necessary and
also push it using the new push_buffer function that is exposed now. The
default implementation gets data from the stream adapter (all available)
and pushes it.

The fragment_finish function must also advance the fragment. The default
implementation only advances the fragment.

This allows the subsegment handling in dashdemux to continuously download
the same file from the server instead of stopping at every subsegment
boundary and starting a new request
2015-01-19 15:30:04 -03:00
Sebastian Dröge
cd3930969a dashdemux: Fix compiler warning with clang
gstdashdemux.c:1330:13: error: implicit conversion from enumeration type 'enum _GstAdaptiveDemuxFlowReturn' to different enumeration type
      'GstFlowReturn' [-Werror,-Wenum-conversion]
      ret = GST_ADAPTIVE_DEMUX_FLOW_SUBSEGMENT_END;
          ~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2015-01-19 11:23:52 +01:00
Thiago Santos
fb760a563c dashdemux: remove unused segment attribute
It was never used, only initialized
2015-01-16 17:07:22 -03:00
Thiago Santos
3055bb331a dashdemux: implement ISOBMFF profile handling
The ISOBMFF profile allows definind subsegments in a segment. At those
subsegment boundaries the client can switch from one representation to
another as they have aligned indexes.

To handle those the 'sidx' index is parsed from the stream and the
entries point to pts/offset of the samples in the stream. Knowing that
the entries are aligned in the different representation allows the client
to switch mid fragment. In this profile a single fragment is used per
representation and the subsegments are contained in this fragment.

To notify the superclass about the subsegment boundary the chunk_received
function returns a special flow return that indicates that. In this case,
the super class will check if a more suitable bitrate is available and will
change to the same subsegment in this new representation.

It also requires special handling of the position in the stream as the
fragment advancing is now done by incrementing the index of the subsegment.
It will only advance to the next fragment once all subsegments have been
downloaded.

https://bugzilla.gnome.org/show_bug.cgi?id=741248
2015-01-16 17:07:05 -03:00
Thiago Santos
f5b98f24c2 dashdemux: parse the sidx index from isobmff streams
Allows dashdemux to identify the subsegments in the stream and
switch bitrates when needed
2015-01-16 15:00:11 -03:00
David Waring
b03acbf584 dashdemux: Find current segment in the streams that have just been setup
Using demux->streams will just skip the whole loop as demux->streams will
always be NULL at that point

https://bugzilla.gnome.org/show_bug.cgi?id=741285
2014-12-09 21:08:10 -03:00
Thiago Santos
f48fa7e763 dashdemux: fix double unref of object
the datetime is already released by the end of the function
2014-12-02 15:52:54 -03:00
David Waring
95c3fdc193 dashdemux: Find the current period in a live stream
Start from the correct period on a live stream

https://bugzilla.gnome.org/show_bug.cgi?id=737421
2014-12-02 14:22:09 -03:00
David Waring
306ca0cdf6 dashdemux: Fix period selection for live streams
Fix period selection and properly error out when update cannot be done

https://bugzilla.gnome.org/show_bug.cgi?id=725298
2014-12-02 13:24:52 -03:00
Thiago Santos
f04d351cd9 dashdemux: replace the streams with the new mpd client's streams
Otherwise it won't update with the new segment info from the playlist
update
2014-11-30 21:56:25 -03:00
Thiago Santos
28d66ea589 dashdemux: when updating the manifest, set the uri
This will allow dashdemux to create the correct full path URIs to
continue downloading fragments
2014-11-30 21:56:25 -03:00
Thiago Santos
58a1b0d058 dashdemux: port to adaptive demux 2014-11-30 21:56:25 -03:00
Matthieu Bouron
1d733eacf7 dashdemux: do not override last known stream error
https://bugzilla.gnome.org/show_bug.cgi?id=736141
2014-11-07 19:52:00 -03:00
Thiago Santos
39ba21619e dashdemux: make sure flushes have the same seqnum as the seek event
They are part of the same operation and should preserve the seqnum
2014-11-07 19:16:47 -03:00
Thiago Santos
e60bdc553c dashdemux: simplify seek to eos handling
Remove redundant flush stop pushing and remove a goto to make
the code flow simpler
2014-11-07 19:09:15 -03:00
Matthieu Bouron
5ae991095d dashdemux: send missing FLUSH_STOP/EOS when no seeking period is found
https://bugzilla.gnome.org/show_bug.cgi?id=736800
2014-11-07 19:02:02 -03:00
Tim-Philipp Müller
f216b7bb11 Sprinkle some G_PARAM_DEPRECATED and #ifndef GST_REMOVE_DEPRECATED 2014-11-02 17:19:34 +00:00
David Waring
29f1f4533e dash: Use GstUri to join URIs 2014-09-29 12:22:19 +03:00
Matthieu Bouron
22c7559152 dashdemux: mark first buffer as discont after restarting a download task
Mark first buffer as discont after restarting a download task, so
downstream can reset its state to properly handle the new fragment.

Related issue: https://bugzilla.gnome.org/show_bug.cgi?id=736318

https://bugzilla.gnome.org/show_bug.cgi?id=736319
2014-09-24 13:30:20 -03:00
Thiago Santos
2273c15f15 dashdemux: push a time segment when restarting streaming
This should inform demuxers/decoders downstream that the stream is
about to start from a new position and they should flush accordingly

https://bugzilla.gnome.org/show_bug.cgi?id=736319
2014-09-24 12:35:37 -03:00
George Kiagiadakis
55032ae5fe dashdemux: synchronize with the download loop thread to signal it to continue
If EOS or ERROR happens before the download loop thread has reached its
g_cond_wait() call, then the g_cond_signal doesn't have any effect and
the download loop thread stucks later.

https://bugzilla.gnome.org/show_bug.cgi?id=735663
2014-09-18 13:38:25 -03:00
Thiago Santos
24c99712a8 dashdemux: fix clearing of eos state in pads
The internal pad still keeps its EOS flag and event as it can be assigned
after the flush-start/stop pair is sent. The EOS is assigned from the streaming
thread so this is racy.

To be sure to clear it, it has to be done after setting the source to READY to
be sure that its streaming thread isn't running.

https://bugzilla.gnome.org/show_bug.cgi?id=736012
2014-09-18 12:14:30 -03:00
Sebastian Dröge
1ce7d89868 dash: Actually retry 3 times as advertised instead of 2 2014-09-15 11:59:49 +03:00
Matthieu Bouron
4ed7c7919a dashdemux: improve position detection when a download restart
Query other src pads before falling back to the position of the last
known pushed segment (which can be far ahead in time).

https://bugzilla.gnome.org/show_bug.cgi?id=736421
2014-09-11 18:25:19 -03:00
Sebastian Dröge
51a9e13bf2 dashdemux: Don't send flush events to deactivated pads
https://bugzilla.gnome.org/show_bug.cgi?id=736012
2014-09-04 18:21:25 +03:00
Tim-Philipp Müller
334a71506c dashdemux: fix abort in error code path with newer glib
Don't forget to unlock mpd client again when erroring out.
Fixes abort when g_mutex_clear() is called on a locked mutex.
2014-08-21 16:25:55 +01:00
Thiago Santos
1cabb3b5a5 dashdemux: unref pad reference when removing internal source in error
Avoids leaking the pad in error situations
2014-08-19 17:17:33 -03:00
Thiago Santos
4afa05e567 dashdemux: read language from ContentComponent node as a fallback
If the language is not specified in the AdaptationSet, use the ContentComponent
node to get it. We only get it if there is only a single ContentComponent as
it doesn't seem clear on what to do if there are multiple entries

https://bugzilla.gnome.org/show_bug.cgi?id=732237
2014-08-19 16:02:52 -03:00
Matthieu Bouron
82fdb3aefc dashdemux: push language code tag
Language code tag is retrieved from the AdaptationSet language
property.

https://bugzilla.gnome.org/show_bug.cgi?id=732237
2014-08-19 15:34:01 -03:00
George Kiagiadakis
ea90ceac01 dashdemux: support downloading segments in reverse order
When a seek with a negative rate is requested, find the target
segment where gstsegment.stop belongs in and then download from
this segment backwards until the first segment.

This allows proper reverse playback.
2014-08-07 16:52:37 +03:00
Thiago Santos
24815a5feb dashdemux: return the error to the source immediately to stop faster
When flushing, this will prevent dashdemux from trying to download more
fragments or more chunks of the same fragment before stopping.

Also improves the error handling to not transform everything non-ok into
an error.

https://bugzilla.gnome.org/show_bug.cgi?id=734014
2014-08-01 10:37:15 -03:00
Sebastian Dröge
ae679506b1 dashdemux: Always use the redirect target to resolve relative URIs
But redownload the playlists from the original URI if it's not
a permanent redirect.
2014-05-28 12:47:51 +02:00
Thiago Santos
4c59f7df4c dashdemux: initialize the mutex and cond for fragment download 2014-05-12 16:27:37 -03:00
Thiago Santos
21b1d37023 dashdemux: remove unused stream uridownloader
The uridownloader for the stream fragments isn't used anymore.
2014-05-11 15:26:45 -03:00
Thiago Santos
a5b3ba09b8 dashdemux: deprecate max-buffering-time property
It is not used as dashdemux doesn't have a internal buffer
for fragments anymore
2014-05-07 01:00:50 -03:00
Thiago Santos
e9638fe3fd dashdemux: removing old unused code
The 'catch up mode' isn't needed anymore since dashdemux
is downloading and pushing from the same thread
2014-05-07 01:00:49 -03:00
Thiago Santos
5df2edf80c dashdemux: remember to set starting fragment to new fragments 2014-05-07 01:00:49 -03:00
Thiago Santos
733c7c0f16 dashdemux: handle a few more error cases
related to missing plugins, bad URI and a lockup on dealing with
errors from the source.
2014-05-07 01:00:49 -03:00
Thiago Santos
173c353716 dashdemux: Only set timestamp to the first buffer of fragments
Setting it to the other parts of the fragment is slightly wrong
and misleading as it isn't accurate enough.
2014-05-07 01:00:49 -03:00
Thiago Santos
f09dd7e7a5 dashdemux: handle error messages from the sources
Set up a message handling function to be able to catch errors
from the source element and signal the cond to allow the download
loop to retry the download.
2014-05-07 01:00:49 -03:00
Thiago Santos
15952dcd8e dashdemux: check for errors between downloads
To abort earlier in case of failures
2014-05-07 01:00:49 -03:00
Thiago Santos
b5998a4c3b dashdemux: Always accept the latency configure event
Upstream or internal elements are irrelevant and we should
always succeed.
2014-05-07 01:00:49 -03:00
Thiago Santos
d6671e73a6 dashdemux: measure download rate just like hlsdemux
new bitrate = (old bitrate + (last fragment bitrate * 3)) / 4
2014-05-07 01:00:49 -03:00
Thiago Santos
bed3d66605 dashdemux: remove uridownloader from fragments download
Instead, use a source element linked to a ghostpad to provide
smaller buffers and more granular control for downstream
buffering elements while also reducing startup latency
2014-05-07 01:00:49 -03:00
Sebastian Dröge
bb8227e279 dashdemux: Update for uri downloader API changes 2014-05-05 09:41:51 +02:00
Sebastian Dröge
f910ffb637 dashdemux: Update for URI downloader API changes
And include the MPD file as referer in requests, and make sure
to set refresh=TRUE when updating the MPD.
2014-05-02 10:39:22 +02:00
Vincent Penquerc'h
2dd898793e dashdemux: fix time leak
Coverity 1147016
2014-04-10 17:48:03 +01:00
Vincent Penquerc'h
59654c68ee dashdemux: remove dead code and variable
A recent commit made stream not able to be NULL, ending up with
a flag being always set to FALSE when it matters.

Coverity 1146968, 1147012
2014-04-10 17:46:32 +01:00
Matthieu Bouron
820685409e dashdemux: use correct print format for gint64
https://bugzilla.gnome.org/show_bug.cgi?id=727385
2014-03-31 14:50:17 +02:00
Sebastian Dröge
b47a4faf5f ext: Use Codec/Demuxer/Adaptive for the adaptive streaming demuxers 2014-02-23 00:11:04 +01:00
Chris Bass
6342d225bf dashdemux: ensure segments aren't fetched before they're available
Incorrect time scaling in gst_dash_demux_wait_for_fragment_to_be_available()
means that media segments are fetched before their availablity time. This
patch fixes this.

https://bugzilla.gnome.org/show_bug.cgi?id=724875
2014-02-22 16:29:13 +01:00
Chris Bass
462c04cade dashdemux: initialise demux->last_manifest_update
demux->last_manifest_update is not initialised at startup, with the
effect that live manifests are reloaded immediately after the download
loop begins. This patch fixes this.

https://bugzilla.gnome.org/show_bug.cgi?id=724790
2014-02-20 20:26:25 +01:00
Sebastian Dröge
48ba499ed2 dashdemux: Download MPD with compression, the fragments without 2014-02-12 13:10:50 +01:00
Sebastian Dröge
3a5abc233d ext: Update for GstUriDownloader API changes 2014-02-11 14:18:32 +01:00
Thiago Santos
cea909b877 dashdemux: fix seeking when the mpd uses a segment template
Remove the dashdemux seeking function to use the one implemented
in mpdparser as it is more complete. This also makes dashdemux not
crash when seeking on streams that use segment templates.
2014-01-09 09:11:23 -03:00
Thiago Santos
da329b44a4 dashdemux: remove stream loop thread
Download and push from the same task, makes code a lot simpler
to maintain. Also pushing from separate threads avoids deadlocking
when gst_pad_push blocks due to downstream queues being full.
2013-12-24 17:07:52 -03:00
Thiago Santos
5b1eda95eb dashdemux: do not try to access buffer after losing the ref
For obvious reasons
2013-12-24 17:07:52 -03:00
Thiago Santos
be54766975 dashdemux: use a separate GstUriDownloader per stream
Avoids one download having to wait for another to finish
before starting
2013-12-24 17:07:52 -03:00
Thiago Santos
f33c52377f dashdemux: store GstActiveStream to avoid getting it every time
GstActiveStream is used everywhere to operate on the MPD client,
better store it in the GstDashDemuxStream to avoid getting it
everytime
2013-12-24 17:07:52 -03:00
Thiago Santos
7c6ccda3ec dashdemux: simplify locking for streams
Use a single lock for all streams instead of having separate locks.
This makes maintenance easier and at most points we would need
a single lock before iterating on all streams data. So not much
is gained from individual locks.
2013-12-24 17:07:51 -03:00
Thiago Santos
a2583e54d1 dashdemux: fix multiple period mpd playback
Make dash playlists with multiple periods work again by waiting
to switch the periods when all streams have reached the end of
the current period. The stream_loop is responsible for advancing
the period, but the download loops will already start downloading
data for the next period as soon as possible.
2013-12-24 17:07:51 -03:00
Thiago Santos
1483b59c6b dashdemux: add combine flows function
Use a flow combination function to decide the result from the
stream_loop
2013-12-24 17:07:51 -03:00
Thiago Santos
6611d14eed dashdemux: handle multiple languages
Handle multiple languages by using the not-linked return to stop
the download task for that stream. It can be reactivated when
a reconfigure event is received. Stopping the unused streams is
relevant to save network bandwidth
2013-12-24 17:07:51 -03:00
Thiago Santos
31e4ba0094 dashdemux: Use 1 download task per stream
Instead of having a single download task for all streams, this
commit makes each stream have its own download loop, allowing
parallel download of fragments.
2013-12-24 17:07:51 -03:00
Thiago Santos
3bd66d17fc dashdemux: refactor fragment fetching into smaller functions
Makes it easier to maintain and extend. This is a first step into
adding multi language support to dashdemux
2013-12-24 17:07:51 -03:00
Thiago Santos
1d2de4a034 dashdemux: run gst-indent
Lots of indentation issues making it very annoying to commit
because of the indent hook. Fix this for once.
2013-12-24 17:07:51 -03:00
Thiago Santos
08636f3bab dashdemux: expose all streams
always expose all streams instead of only exposing one of each type.

This is more aligned with gstreamer's way of working. Allows the user
to select the stream that it wants to use by linking its pad and leaving
the unused ones as unlinked.
2013-12-24 17:07:51 -03:00
Greg Rutz
6819d1a206 dashdemux: Improve if cause readability
Fixed up the error-handling code when downloading fragments.
Modifed the error-handling code to use positive logic when
testing for cancellation of the download loop.

https://bugzilla.gnome.org/show_bug.cgi?id=701404
2013-10-03 09:15:37 -03:00
Thiago Santos
b8dd95e219 dashdemux: actually return true on latency query
Do not forget to set the return for latency query
2013-10-03 09:15:37 -03:00
Alex Ashley
42fd04ce48 dashdemux: stop fetching live fragments that don't yet exist
There is an issue for live streams where download_loop will keep
downloading segments until it gets a 404 error for a segment
that has not yet been published. This is a problem because this
request for a segment that doesn't exist will propagate all the
way back to the origin server(s). This means that dashdemux causes
extra load on the origin server(s) for segments that aren't yet
available.

This patch uses availabilityStartTime, period
and the host's idea of UTC to decide if a fragment is available to
be requested from an HTTP server and filter out requests for fragments
that are not yet available.

https://bugzilla.gnome.org/show_bug.cgi?id=701404
2013-10-03 09:15:37 -03:00
Josep Torra
47c35ee52e dashdemux: Fix warnings when building in OS X Snow Leopard
gstdashdemux.c:1753: warning: format '%llu' expects type 'long long unsigned int', but argument 8 has type 'long unsigned int'
gstdashdemux.c:2224: warning: format '%llu' expects type 'long long unsigned int', but argument 9 has type 'guint64'
gstdashdemux.c:2224: warning: format '%llu' expects type 'long long unsigned int', but argument 10 has type 'guint64'
2013-08-30 21:52:35 +02:00
Thiago Santos
2db211e243 dashdemux: use push_force when adding events to the dataqueue
This prevents deadlocks on startup on files that have only a very
large buffer for a stream and the queue is filled and will lock on
the eos event that is pushed after the buffer. As no buffers have yet
been pushed to other streams, the pipeline locks on preroll
2013-08-13 11:49:54 -03:00
Thiago Santos
ac07f8577b dashdemux: properly error out when manifest has no streams
Post an error message when the manifest is parsed and no valid streams
are found be activated and used.

Fixes #704308
2013-07-30 22:06:38 -03:00
Edward Hervey
97426a1caa all: Fix for GST_DISABLE_GST_DEBUG
Where applicable, remove methods that don't do anything different than
the default implementation.
2013-07-29 09:42:12 +02:00
Sebastian Dröge
493ee3383a dash: Add support for group-id in the stream-start event 2013-07-23 10:33:31 +02:00
Thiago Santos
ec630db32f dashdemux: fix typo in check_queue_full function
It should return True when the queue IS full

Fixes #704226
2013-07-15 10:05:59 -03:00
Thiago Santos
1472dd3d58 dashdemux: implement queue full check function
Checks if the queue is full according to max buffering time
set by the user

https://bugzilla.gnome.org/show_bug.cgi?id=701404
2013-07-09 01:18:54 -03:00
Thiago Santos
95c2638ba5 dashdemux: minor refactor
Split one very large function into 2 smaller but still large functions.

Also change the if conditions to positive checks to improve readability.
2013-07-09 00:47:07 -03:00
Thiago Santos
5a5e66ec90 dashdemux: handle live playback resync
During a live stream it is possible for dashdemux to lag behind on a
slow connection or to rush ahead of the connection os too fast.

For the first case it is necessary to jump some segments ahead to be able to
continue playback as old segments are usually deleted from the server.

For the later, dashdemux should wait a little before attempting another
download do give time to the server to produce a new segment
2013-07-08 23:40:14 -03:00
Thiago Santos
a8a355108a dashdemux: use more appropriate data structures for parsing
Replaces the 2 likely larger lists with more appropriate structures
to improve performance.

Replaces S nodes GList for a GQueue, this reduces latency to startup
because of traversing the list just append an element.

Replaces the processed media segments GList for a GPtrArray as it is
constantly acessed by index during playback.
2013-07-08 23:39:49 -03:00
Thiago Santos
b8fc98849a dashdemux: answer to latency queries
Set live if stream is live and also add to the max latency the
max internal buffering
2013-07-08 23:39:49 -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
Thiago Santos
0a88daaf8e dashdemux: protect against failed header downloads
Avoids criticals when downloaded fragment is NULL
2013-07-03 10:23:45 -03:00
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
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
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
Olivier Crête
5732c53c81 dashdemux: Make gst-indent happy 2013-06-10 18:01:09 -04:00
Arthur Shipkowski
3d50af3e4b dashdemux: Fix issue with get returning a value for max-buffering-time
It was not properly divided by GST_SECONDS. Also fix issue with
max-buffering-time being multiplied by GST_SECONDS every time the
property is retrieved.

https://bugzilla.gnome.org/show_bug.cgi?id=700487
2013-06-07 22:58:33 -03:00
Thiago Santos
d434f36245 dashdemux: send stream start event
Removes warnings about strict sticky events ordering
2013-05-17 21:23:55 -03:00
Olivier Crête
220f075423 dashdemux: Announce correct mpegts caps 2013-05-15 22:24:29 -04:00
Tim-Philipp Müller
0d7967e25e dashdemux: rename src template from src%d to src_%u 2013-05-08 23:17:08 +01:00
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
9f190cdff7 dashdemux: port to 1.0 2013-05-08 18:14:46 -03:00
Thiago Santos
b338cc0d34 dashdemux: Fix another wrong assertion
Also adds a couple log messages for easier debugging
2013-05-08 18:14:46 -03:00
Thiago Santos
3472efda75 dashdemux: remove wrong asserts
Those asserts should be the contrary that they are. And also
the surround functions should already check that. Removing them.
2013-05-08 18:14:46 -03:00
Wim Taymans
665d59edba dashdemux: only start timestamp from 0 for live stream
We only want to adjust the timestamps so that they start from 0 for live
streams. Non-live streams already start from 0 and after a seek we actually want
to timestamp to be the position we seek to.
2013-05-08 18:14:45 -03:00
Wim Taymans
4f9f0b84cf dashdemux: make timestamps start from 0
Non-live streams should timestamp buffers with a running-time starting from
0. Since we already push a 0 -> -1 segment, bring the timestamps to 0
by subtracting the initial timestamp.
2013-05-08 18:14:45 -03:00
Wim Taymans
4ab58e0fb1 dashdemux: also send newsegment on startup 2013-05-08 18:14:45 -03:00
Wim Taymans
cfcaa23959 dashdemux: small cleanup 2013-05-08 18:14:43 -03:00
Thiago Santos
afccf149af dashdemux: live stream playback crashfix 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