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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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Initial build structure for MS' Smooth Streaming plugin
Conflicts:
ext/Makefile.am
2013-05-07 20:02:41 -03:00
