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183 commits

Author SHA1 Message Date
Thiago Santos
1116eee681 mssdemux: push newsegments with same start time on bitrate switches 
This keeps sinks working in sync after a bitrate switch
 2013-05-07 21:05:12 -03:00
Thiago Santos
c2ae981e6d mssdemux: rewriting pad tasks so that buffers are pushed by ts order 
Use pad tasks to download data and an extra task that gets the earlier
buffer (with the smallest timestamp) and pushes on the corresponding
pad.

This prevents that the audio stream rushes ahead on buffers as its
fragments should be smaller
 2013-05-07 21:05:12 -03:00
Thiago Santos
fba63178fe mssdemux: some fixes to bitrate switching 
Removes a possible deadlock from bitrate switching when the pad
that requested the switch blocks on its pad-push
 2013-05-07 21:05:12 -03:00
Thiago Santos
6ca10e6c1b mssdemux: refactoring fragment download to its own function 
Makes code clearer and helps changing the download part of the
code to its own thread
 2013-05-07 21:05:11 -03:00
Thiago Santos
da4fad2f6f mssdemux: implement bitrate switching 
When connection-speed changes, signal that we might need a bitrate
switch. During the switch, a new pad group is added and the old one
is drained and removed.

New pads also need to push newsegments before starting to stream
 2013-05-07 21:05:11 -03:00
Thiago Santos
b9aec0ad0d mssdemux: add connection-speed property 
This speed limits the maximum bitrate of streams. Currently it
is only read when starting the pipeline, but it should be used
for switching bitrates during playback to adapt to network
changes.
 2013-05-07 21:05:11 -03:00
Thiago Santos
4b6900999a mssdemux: add an 'active' flag to manifest stream 
mssdemux should set the streams it has exposed as active so that
the manifest won't use the non-active streams to compute total bitrates
or providing fragments
 2013-05-07 21:05:11 -03:00
Thiago Santos
4726115e83 mssdemux: signal no-more-pads when finished exposing pads 
This makes decodebin/playbin mechanism know it can start playing
when buffering is finished
 2013-05-07 21:05:11 -03:00
Thiago Santos
eec8164d9c mssmanifest: Keep the stream qualities list sorted by bitrate 
This will help making adaptive streaming chose the best rate
for a particular connection speed
 2013-05-07 21:05:11 -03:00
Thiago Santos
013c11f7dd mssdemux: also consider fourcc AVC1 as H264 
H264 can be represented by both fourccs H264 and AVC1, use both.
 2013-05-07 21:05:11 -03:00
Thiago Santos
4293cfa763 mssmanifest: add support for VC-1 and WmaPro formats parsing 
VC-1 should map to WMV3 and WmaPro to WMA2
 2013-05-07 21:05:11 -03:00
Thiago Santos
3f2409f7e2 mssdemux: do not try to expose unknown streams 
When the stream can't have its caps detected, better not to expose it.
If no streams are known, signal an error about no playable streams to
the application
 2013-05-07 21:05:11 -03:00
Thiago Santos
b2ba96bb85 mssmanifest: do not set codec_data when it is empty 
Some manifests contain empty codec datas, better not set them
 2013-05-07 21:05:11 -03:00
Thiago Santos
9b3f67c5b0 mssdemux: set timestamp and duration to fragment buffers 
We can get those from the manifest and helps downstream to know
the fragment start time after a seeking operation
 2013-05-07 21:05:11 -03:00
Thiago Santos
ebd0862ac1 mssmanifest: fix typo 
Fix typo that was making the advance fragment function return a wrong
flow return in case it was already EOS
 2013-05-07 21:05:11 -03:00
Thiago Santos
cb7e3d1f3b mssdemux: initial implementation of seek event handling 
Adds basic handling for seek in time events. Needs to cooperate
with the downstream qtdemux so that it forwards the seeks and
the corresponding newsegments
 2013-05-07 21:05:11 -03:00
Thiago Santos
33d872916b mssdemux: handle src pad queries fir duration and latency 
Add a src pad query handler to get the duration from the manifest
and report it upstream.

Also adds a simple handler for latency queries
 2013-05-07 21:05:11 -03:00
Thiago Santos
0f1ef317f0 mssdemux: add some more error handling 
Post error in some more scenarios:
* when the manifest has no streams
* when getting the fragment url fails
 2013-05-07 21:05:11 -03:00
Thiago Santos
3f15c9b05a mssdemux: add timescale to the caps 
This is important for downstream to properly timestamp the samples

The default value is 10000000, but this can be set in the stream
or at the top-level manifest entry
 2013-05-07 21:05:10 -03:00
Thiago Santos
68d2719c9f mssdemux: parse the fps from h264 codec data if possible 
Use h264 codec parsing lib to extract the fps from the manifest's
codec data as it doesn't seem to provide it anywhere else
 2013-05-07 21:05:10 -03:00
Thiago Santos
af4c690995 mssdemux: correctly add h264 codec data to caps 
Need to construct an avcc atom from the codecdata read from MSS
manifests to make h264 decoders/parsers accept it
 2013-05-07 21:05:10 -03:00
Thiago Santos
edea61b758 mssdemux: add the correct caps to the outgoing stream 
mssdemux outputs a quicktime variant, named mss-fragment
 2013-05-07 21:05:10 -03:00
Thiago Santos
32d8a72bfc mssdemux: set caps to buffers before pushing 
Also update to the latest gstfragment API that provides
the fragment as a whole buffer.
 2013-05-07 21:05:10 -03:00
Thiago Santos
91dd173f3c mssdemux: improve state changing 
Keep a ref on pad to prevent it being unreffed while the mssdemux
streams are still using it. Also reset the element when going to
ready instead of when going to null.
 2013-05-07 21:05:10 -03:00
Thiago Santos
b4f994d47c mssdemux: adds mininum error handling 
This should care for basic scenarios of errors and EOS to allow
the pipeline to stop correctly
 2013-05-07 21:05:10 -03:00
Thiago Santos
96522f474c mssdemux: mssmanifest: prevent accessing null stream fragment 
Move the access to the stream fragment data after the check
if the fragment exists to prevent a segfault
 2013-05-07 21:05:10 -03:00
Thiago Santos
ca4e5c34cb smoothstreaming: refactor structure names and implement url fetching 
Use shorter names for the MSS manifest helper structure and functions.

Also continues the implementation of the stream fetching and pushing loop.
Now it uses the base url correctly and already fetches and pushes the fragments
downstream
 2013-05-07 21:05:10 -03:00
Thiago Santos
7ceb023682 mssdemux: initial implementation of the pad loop 
The loop will fetch a new fragment and push on its srcpad. Each
stream has its own loop
 2013-05-07 21:05:10 -03:00
Thiago Santos
6b63a7dc81 mssdemux: more manifest parsing and helper functions 
Now the mss manifest is able to generate the files urls
 2013-05-07 21:05:10 -03:00
Thiago Santos
5291985efe mssdemux: pad exposing initial implementation 
Does some basic parsing of the stream caps and adds a pad for
each stream detected in the manifest
 2013-05-07 21:05:10 -03:00
Thiago Santos
72b05c0051 mssdemux: add manifest parsing 
Continued implementing:
1) parse the manifest with libxml2
2) detect stream types
 2013-05-07 21:05:10 -03:00
Thiago Santos
95e87fbee9 smoothstreaming: stubs for mssdemux 
Just the stubs for mssdemux element.
Also add some useful code from hlsdemux that we intend to reuse
 2013-05-07 21:05:10 -03:00
Thiago Santos
ef25e05b7c smoothstreaming: build directory stubs for new plugin 
Initial build structure for MS' Smooth Streaming plugin

Conflicts:
	ext/Makefile.am
 2013-05-07 20:02:41 -03:00