Commit graph

179 commits

Author SHA1 Message Date
Sebastian Dröge fef9ef6a8e dash/smoothstreaming: Remove unused debug category with the same name
It caused static linking to fail.
2013-09-19 20:09:59 +02:00
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
Josep Torra 0b54b0568d dashdemux: Fix warnings when building in OS X Snow Leopard
gstmpdparser.h:530: warning: type qualifiers ignored on function return type
gstmpdparser.c:4177: warning: type qualifiers ignored on function return type
2013-08-30 21:36:19 +02:00
Chris Bass 7f21226956 dashdemux: offset segment numbers by startNumber
For SegmentTemplate elements containing a startNumber attribute, the
`number' member of GstMediaSegments should be offset by the value of
startNumber; however, this is not currently the case. As a result, the
first URI(s) requested by the download loop will be wrong.

This commit ensures that segment numbers will be offset by startNumber
when one is present in a SegmentTemplate element.

https://bugzilla.gnome.org/show_bug.cgi?id=705661
2013-08-16 11:15:47 -03:00
Chris Bass 19a45554bf dashdemux: remove incorrect timestamp scaling.
When using a SegmentTemplate element, the timestamps of the buffers
output by dashdemux are incorrect, causing problems downstream.

The reason is that GstMediaSegment start times are calculated (in
gst_mpdparser_get_chunk_by_index) by multiplying segment index by
segment duration and then scaling the result according the `timebase'
attribute from the MPD. However, the segment duration is already a
GstClockTime (i.e., it has already been scaled according to the timebase
from the MPD and converted to a nanosecond value), so multiplying it by
the segment index will give the correct timestamp without the need for
any further scaling.

https://bugzilla.gnome.org/show_bug.cgi?id=705679
2013-08-16 10:22:21 -03:00
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 b316d8a677 dashdemux: fix template based segment generation
When using a template based segment list, do not try to
contruct a finite segment list for the limits of the available periods.

We might not know when the period ends (for live streams) and we can
always create the segment on demand when requested by dashdemux,
avoiding use of some memory and cpu when re-creating this list.
2013-07-08 23:39:49 -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 9a38127467 dashdemux: prevent assertion when duration is unknown
Duration from segment being unknown is a issue from the MPD and not
a programming issue, so the assert isn't useful here. Instead check
and return an error code so the caller can fallback to alternatives
2013-07-03 19:11:45 -03:00
Thiago Santos 3030c25aed dashdemux: Fix event leak when parsing manifest fails
Always remember to unref the event before proceeding, in both success
and failure cases
2013-07-03 19:11:11 -03:00
Thiago Santos 788757dc1f dashdemux: various cleanups
Removing unused function, replacing // comments with /* */ and
replacing some GST_WARNING with GST_INFO/_DEBUG as they are meant
to be
2013-07-03 15:34:41 -03:00
Alex Ashley 5ad2a2d161 dashdemux: Change first fragment selection for live streams
When dashdemux selects its first fragment, it always selects the
first fragment listed in the manifest. For on-demand content,
this is the correct behaviour. However for live content, this
behaviour is undesirable because the first fragment listed in the
manifest might be some considerable time behind "now".

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

https://bugzilla.gnome.org/show_bug.cgi?id=701509
2013-07-03 15:34:30 -03:00
Thiago Santos 5c480dfc13 dashdemux: only generate index segment uri if there is a template
Simple fix to avoid an assertion.
2013-07-03 10:23:45 -03:00
Greg Rutz 5920ee2777 dashdemux: Implement inheritance for certain MPD elements
According to the MPEG-DASH spec, certain elements (i.e.
SegmentBase, SegmentTemplate, and SegmentList) should inherit
attributes from the same elements in the containing AdaptationSet
or Period.

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

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

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

https://bugzilla.gnome.org/show_bug.cgi?id=702677
2013-07-03 10:23:45 -03:00
Thiago Santos 467b22c567 dashdemux: change debug message from warning to info
It isn't a warning/issue.
2013-07-03 10:23:45 -03:00
Thiago Santos 94c6497dfa dashdemux: protect from access to empty list data
Check if the list has elements before trying to access the last one
and causing a segfault
2013-07-03 10:23:45 -03:00
Thiago Santos 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 4c89fab390 dash: save 1 or 2 string copies when getting fragment uris
Only create new string if required, saving maybe 1 or 2 str copies per
fragment.
2013-07-01 18:52:08 -03:00
Thiago Santos aa1fe88a08 dashdemux: each fragment can have its own index
Return index URI/range to dashdemux from the mpdparser to be able
to download and deliver them downstream for playback.
2013-07-01 18:52:08 -03:00
Thiago Santos d68fffc217 dashdemux: handle top-level index urls
Parse and provide access to top-level index segments if available.
dashdemux should push those whenever a header is pushed.

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

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

https://bugzilla.gnome.org/show_bug.cgi?id=702206
2013-07-01 14:22:01 -03:00
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 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 573a4d440c dash: remove superfluous files
Authors and license are at the top of the source files
2013-05-08 18:59:31 -03:00
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