Commit graph

99 commits

Author SHA1 Message Date
Thiago Santos
6348113777 mssdemux: updating docs explaining how it works
mssdemux changed a lot and the docs were not correct anymore.

Also adds the 'Adaptive' category to its details
2013-12-20 00:40:42 -03:00
Thiago Santos
ff1e88ce93 mssdemux: do not push event holding object lock
Can lead to deadlocks as the push might block downstream in
serialized event cases.
2013-12-20 00:40:42 -03:00
Thiago Santos
aa61251371 mssdemux: lock around 'cancelled' flag
Prevents race conditions when pipeline is seeking near eos
2013-12-20 00:40:42 -03:00
Thiago Santos
628461b4d1 mssdemux: fix segfault when trying to access codec_data
Check if codec_data was obtained before trying to use it to
prevent a segfault
2013-12-18 18:52:19 -03:00
Thiago Santos
5948a07324 mssdemux: also generate caps from audiotag attribute
Some audio will have its audio format defined by the AudioTag
instead of the Fourcc. Fallback to using AudioTag if Fourcc
isn't available
2013-12-18 18:52:19 -03:00
Thiago Santos
26acbbcca9 mssdemux: make sure streams stop properly on cancelled
specially when the gst_task_join is waiting for the task
to go stop and the task itself sets its back to paused, causing
a deadlock on exit.
2013-12-18 18:52:19 -03:00
Thiago Santos
99c8fb7330 mssdemux: track segments per stream
As streams now flow independently, the GstSegment needs to be put
on each stream so they can track the position of each one correctly
instead of being mixed in a single segment
2013-12-18 18:52:19 -03:00
Guillaume Desmottes
f44c6ed526 mssdemux: push language code tag
https://bugzilla.gnome.org/show_bug.cgi?id=712358
2013-12-18 18:52:19 -03:00
Guillaume Desmottes
d6a9f17d8a mssmanifest: store the language of the stream
https://bugzilla.gnome.org/show_bug.cgi?id=712358
2013-12-18 18:52:19 -03:00
Thiago Santos
67f3190301 mssdemux: remove the stream loop task
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
2013-12-18 18:52:19 -03:00
Thiago Santos
4e6e1315da mssdemux: Improve logging
Show the stream's pad on log messages to make easier to debug
issues in the multiple threads
2013-12-18 18:52:18 -03:00
Thiago Santos
056420940e mssdemux: improve flow return handling
Handle different flow returns both from the streaming and the
downloading loops
2013-12-18 18:52:18 -03:00
Thiago Santos
e847bea1e1 mssdemux: remove stream locks
Simplify the locking by using a single lock instead of having one
lock per stream. This still works and is simpler to maintain.
2013-12-18 18:52:18 -03:00
Thiago Santos
2ce4f6a8e4 mssdemux: avoid downloading not-linked streams
When a stream gets a not-linked return, it will be marked as so and
won't download any more new fragments until a reconfigure event
is received. This will make mssdemux expose all pads, but only download
fragments for the streams that are actually being used.

Relying on the pads being linked/unlinked isn't enough in this scenario
as there might be an input-selector downstream that is actually discarding
buffers for a given linked pad.

When streams are switching, the old active stream can be blocked because
input-selector will block not-linked streams. In case the mssdemux's
stream loop is blocked pushing a buffer to a full queue downstream it will
never unblock as the queue will not drain (input-selector is blocking).

In this scenario, stream switching will deadlock as input-selector is
waiting for the newly active stream data and the stream_loop that would
push this data is blocked waiting for input-selector.

To solve this issue, whenever an stream is reactivated on a reconfigure
it will enter into the 'catch up mode', in this mode it can push buffers
from its download thread until it reaches the currrent GstSegment's position.
This works because this timestamp will always be behind or equal to the maximum
timestamp pushed for all streams, after pushing data for this timestamp,
the stream will go back to default and be pushed sequentially from the main
streaming thread. By this time, the input-selector should have already
released the thread.

https://bugzilla.gnome.org/show_bug.cgi?id=711849
2013-12-18 18:52:18 -03:00
Antonio Ospite
c4fbff50df mssdemux: fix setting codec_data when using WaveFormatEx
When using WaveFormatEx the actual codec private data is at the end of
the wav header structure, after the cbSize field, see for example the
notes at http://wiki.multimedia.cx/index.php?title=WAVEFORMATEX

The previous code was erroneously passing the whole WAVEFORMATEX
structure as codec_data.

The smoothstreaming specifications[1,2,3] always mention WAVEFORMATEX
and never smaller structures like WAVEFORMAT or PCMWAVEFORMAT, so the
buffer can assumed to be at least 18 bytes and always consuming the wav
header gives the (possibly empty) codec private data.

[1] http://web.archive.org/web/20120907004742/http://www.iis.net/community/files/media/smoothspecs/%5BMS-SMTH%5D.pdf
[2] http://download.microsoft.com/download/B/0/B/B0B199DB-41E6-400F-90CD-C350D0C14A53/%5BMS-SSTR%5D.pdf
[3] http://download.microsoft.com/download/9/5/E/95EF66AF-9026-4BB0-A41D-A4F81802D92C/%5BMS-SSTR%5D.pdf

https://bugzilla.gnome.org/show_bug.cgi?id=699924
2013-11-27 09:26:36 -03:00
Antonio Ospite
f02e7a2439 mssdemux: use mssdemux_debug debug category for gstmssmanifest.c too 2013-11-27 09:26:36 -03:00
Antonio Ospite
8345c5acfb mssdemux: fix coding style 2013-11-27 09:26:36 -03:00
Thiago Santos
27b0086e4a mssdemux: do not try to deinit the downloadrate while it is used
This can cause an assertion or deadlocks.
2013-11-15 12:01:55 -03:00
Thiago Santos
fe77ee47c9 mssdemux: also consider /manifest
The spec says /Manifest, but /manifest is easily found on some
services, so handle that, too.

https://bugzilla.gnome.org/show_bug.cgi?id=710223
2013-11-15 12:01:54 -03:00
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
Thiago Santos
1b1332cb6d mssdemux: use gst_data_queue_push_force for adding events to queue
This prevents locking on startup when a stream only has a single buffer
for one of the streams and mssdemux decides to push an EOS event right
after it.
2013-08-13 12:44:41 -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
5b702b894e mssdemux: Add support for group-id in the stream-start event 2013-07-23 10:33:31 +02:00
Thiago Santos
750137c4be mssdemux: fix wma pro caps creation
WmaPro is actually wmaversion 3, and can also be found by the
WMAP fourcc.

Some manifests also contain the block_align field as "PacketSize"
in the audio track description, the libav decoders require it
to be present in caps.

Fixes #699921
2013-05-17 12:08:10 -03:00
Thiago Santos
504142ea93 mssdemux: fix assertions when a stream caps can't be created
Fixes two assertions related to cleanup for a pad that couldn't
be exposed because the caps couldn't be identified from the
Manifest

Fixes #699921
2013-05-17 11:37:30 -03:00
Thiago Santos
27d726fbfa mssdemux: parse block_align, channels and rate from waveformatex if possible
wma v2 expects block_align, channels and rate fields set to its caps.
This isn't present direclty on the manifests, so mssdemux should parse
it from the waveformatex structure

https://bugzilla.gnome.org/show_bug.cgi?id=699924
2013-05-16 15:00:39 -03:00
Thiago Santos
f74f9cd3ab mssdemux: add bitrate info to audio streams
bitrate info is always present on the QualityLevel xml node as part
of the adaptive selection processing, put it into caps as some
decoders require it (avdec_wmav2 for example)

https://bugzilla.gnome.org/show_bug.cgi?id=699924
2013-05-16 15:00:39 -03:00
Thiago Santos
62860f4fa9 mssdemux: send stream id and newsegment before pushing data
Fixes sticky events ordering warnings when data is pushed

https://bugzilla.gnome.org/show_bug.cgi?id=699924
2013-05-16 15:00:39 -03:00
Tim-Philipp Müller
43fea50c8a smoothstreaming: pass width, height, channels and rate as integer
g_ascii_strtoull() returns a long long integer, but we need to
pass a normal int to gst_structure_set() for fields of G_TYPE_INT,
so cast appropriately.
2013-05-08 15:42:01 +01:00
Tim-Philipp Müller
99c1dce8db smoothstreaming: fix WMV caps
Makes this show at least a picture:
http://playready.directtaps.net/smoothstreaming/TTLSS720VC1/To_The_Limit_720.ism/Manifest
2013-05-08 10:55:16 +01:00
Thiago Santos
4711da22e9 mssdemux: fixing compiler warnings about print formats 2013-05-07 21:09:49 -03:00
Thiago Santos
4545f4bf4e smoothstreaming: port to 1.0 2013-05-07 21:09:49 -03:00
Thiago Santos
001da5a239 mssdemux: remove already fixed TODO comment 2013-05-07 21:09:49 -03:00
Thiago Santos
210f6c510c mssdemux: replace gst_value_deserialize with simpler function
The deserialization was only used to convert hex strings into
GstBuffers. Replace gst_value_deserialize with a simpler, direct
function.
2013-05-07 21:09:49 -03:00
Thiago Santos
1458500850 mssdemux: fix newsegment event leak 2013-05-07 21:09:48 -03:00
Thiago Santos
e541ec7e63 mssdemux: replace unused parameter
The buffer parameter wasn't being used, it was only to signal if
a buffer was downloaded and advance to the next fragment in the
manifest.

Replace the buffer with a boolean that has the same effect and is
safer
2013-05-07 21:09:48 -03:00
Wim Taymans
6d56eba653 mss: avoid GValue leak 2013-05-07 21:09:48 -03:00
Louis-Francis Ratté-Boulianne
f0b6b79461 mssdemux: fix a small memory leak 2013-05-07 21:09:48 -03:00
Louis-Francis Ratté-Boulianne
00400a838b mssdemux: avoid streaming to fail when download is cancelled
When download was failing repeatedly, it was causing streaming to fail even though it was cancelled on purpose (stopping tasks).
2013-05-07 21:09:48 -03:00
Thiago Santos
b579cb1ddc mssdemux: removing unused functions 2013-05-07 21:09:48 -03:00
Thiago Santos
1d28c574cf mssdemux: switch bitrates without switching pads 2013-05-07 21:09:48 -03:00
Andre Moreira Magalhaes (andrunko)
c8367a346c mssdemux: Check if pads are valid before removing. 2013-05-07 21:09:48 -03:00
Thiago Santos
bf0ea5d561 mssdemux: add a maximum error count for downloads
mssdemux will tolerate a few download errors before emitting an
error message to the bus
2013-05-07 21:09:48 -03:00
Thiago Santos
255eb4b161 mssdemux: use streams bitrate individually
connection setup times seem to matter when measuring the download
rate of different streams. Streams with longer fragments have a
*relatively* lower connection setup time and achieve higher bitrates.

Using the average seems unfair here, so use each stream's measured bitrate
to select its best quality option.
2013-05-07 21:09:48 -03:00
Thiago Santos
52c97834df mssdemux: use downloadbitrate utility for measuring bitrate
downloadbitrate keeps a short history of bitrates and helps
tracking the current average download bitrate for mssdemux
2013-05-07 21:09:48 -03:00
Andre Moreira Magalhaes (andrunko)
68308b3e54 mssdemux: Properly compute new bitrate and use bitrate_limit. 2013-05-07 21:09:48 -03:00
Andre Moreira Magalhaes (andrunko)
706b127daa mssdemux: Avoid a possible division by zero 2013-05-07 21:09:48 -03:00
Andre Moreira Magalhaes (andrunko)
28beb2ebd7 mssdemux: Add missing object param to GST_DEBUG|INFO_OBJECT calls 2013-05-07 21:09:48 -03:00
Thiago Santos
2219a3a1cc mssdemux: add bitrate-limit property
It allows the plugin to use its own downloading bitrate measures
as a feedback to select the best streams bitrate for the current
network scenario
2013-05-07 21:09:48 -03:00
Thiago Santos
a0a05b2941 mssdemux: use the shared uridownloader lib instead of an internal copy 2013-05-07 21:09:47 -03:00