Commit graph

31 commits

Author SHA1 Message Date
Matthew Waters
bf849e9a69 decklink: start scheduled playback in paused
This is part of a much larger goal to always keep the frames we schedule to
decklink be always increasing.  This also allows us to avoid using both the
sync and async frame display functions which aren't recomended to be used
together.

If the output timestatmsp is not always increasing decklink seems to hold
onto the latest frame and may cause a flash in the output if the played
sequence has a framerate less than the video output.

Scenario is play for N seconds, pause, flushing seek to some other position,
play again.  Each of the play sequences would normally start at 0 with
the decklink time.  As a result, the latest frame from the previous sequence
is kept alive waiting for it's timestamp to pass before either dropping
(if a subsequent frame in the new sequence overrides it) or displayed
causing the out of place frame to be displayed.

This is also supported by the debug logs from the decklink video sink
element where a ScheduledFrameCompleted() callback would not occur for
the frame until the above had happened.

It was timing related as to whether the frame was displayed based
on the decklink refresh cycle (which seems to be 16ms here),
when the frame was scheduled by the sink and the difference between
the 'time since vblank' of the two play requests (and thus start times
of scheduled playback).

https://bugzilla.gnome.org/show_bug.cgi?id=797130
2018-09-12 21:16:27 +10:00
Matthew Waters
87077d20de decklinkaudiosink: fix debug string copy-paste error
Stopping != Starting
2018-09-12 20:37:47 +10:00
Nirbheek Chauhan
dd3e7325b0 decklink: Fix warning about HRESULT not being unsigned int 2018-06-20 11:38:17 +05:30
Sebastian Dröge
2b8f82f929 decklinkaudiosink: Start audio pre-rolling if the output is not started yet in render()
This seems to allow to schedule audio samples correctly at their right
times already.

https://bugzilla.gnome.org/show_bug.cgi?id=790114
2017-12-14 10:37:20 +02:00
Sebastian Dröge
a38cf7d8a9 decklinkaudiosink: Include final flow return in debug output
https://bugzilla.gnome.org/show_bug.cgi?id=790114
2017-12-14 10:37:20 +02:00
Sebastian Dröge
3e70f00209 decklinkaudiosink: Check also against the clock if we run ahead of the clock too much
The buffer level as reported by the Decklink driver is completely
unreliable, and we could otherwise easily run ahead >1s if we're
unlucky.

https://bugzilla.gnome.org/show_bug.cgi?id=790114
2017-12-14 10:37:20 +02:00
Sebastian Dröge
118b2967e7 decklinkaudiosink: Implement resampling/buffer reversing for trick-modes
https://bugzilla.gnome.org/show_bug.cgi?id=790114
2017-12-14 10:37:20 +02:00
Sebastian Dröge
86888d9918 decklinkaudiosink: Re-implement around GstBaseSink instead of GstAudioBaseSink
The Decklink and GstAudioBaseSink APIs don't fit very well together,
which causes various problems due to inaccuracies in the clock
calculations and the actual ringbuffer and GStreamer's copy getting of
sync.

Problems are audio drop-outs and A/V sync getting wrong after
pausing/seeking.

https://bugzilla.gnome.org/show_bug.cgi?id=790114
2017-12-14 10:37:20 +02:00
Sebastian Dröge
a563cbbc1c decklink: Add read-only property to read the device serial number
https://bugzilla.gnome.org/show_bug.cgi?id=788510
2017-10-18 12:33:28 +02:00
Sebastian Dröge
571c8bc1ff decklink: Fix indentation 2017-08-02 19:07:35 +03:00
Nirbheek Chauhan
ca8c63080f decklink: Fix format specifier warnings in logging v2
HRESULT is unsigned long on Windows, but the Decklink headers define
it to 'int' on Linux. Confusingly, the defines that talk about the
possible return values for it use long constants. The easy fix would
be to change the linux/LinuxCOM.h header, but that's copied from the
decklink SDK.

Change the logging to always upcast to unsigned long while printing
HRESULT for consistency across platforms.
2017-07-19 04:19:34 +05:30
Nirbheek Chauhan
2fac6fa6a6 decklink: Fix format specifier warnings in logging
gstdecklinkvideosrc.cpp:425:7: warning: format '%x' expects argument of type 'unsigned int', but argument 8 has type 'HRESULT {aka long int}' [-Wformat]

[and so on]
2017-07-19 02:27:48 +05:30
Nirbheek Chauhan
0084bfccc9 decklink: Fix build on mingw32 by adding missing WINAPI
gstdecklinkaudiosink.cpp:155:19: error: conflicting type attributes specified for 'virtual HRESULT GStreamerAudioOutputCallback::QueryInterface(const IID&, void**)'
In file included from /var/lib/jenkins/workspace/cerbero-cross-mingw32/workdir/mingw/w32/bin/../lib/gcc/i686-w64-mingw32/4.7.3/../../../../i686-w64-mingw32/include/objbase.h:153:0,
                 from /var/lib/jenkins/workspace/cerbero-cross-mingw32/workdir/mingw/w32/bin/../lib/gcc/i686-w64-mingw32/4.7.3/../../../../i686-w64-mingw32/include/ole2.h:16,
                 from /var/lib/jenkins/workspace/cerbero-cross-mingw32/workdir/mingw/w32/bin/../lib/gcc/i686-w64-mingw32/4.7.3/../../../../i686-w64-mingw32/include/windows.h:94,
                 from /var/lib/jenkins/workspace/cerbero-cross-mingw32/workdir/mingw/w32/bin/../lib/gcc/i686-w64-mingw32/4.7.3/../../../../i686-w64-mingw32/include/rpc.h:16,
                 from win/DeckLinkAPI.h:27,
                 from gstdecklink.h:35,
                 from gstdecklinkaudiosink.h:27,
                 from gstdecklinkaudiosink.cpp:25:
/var/lib/jenkins/workspace/cerbero-cross-mingw32/workdir/mingw/w32/bin/../lib/gcc/i686-w64-mingw32/4.7.3/../../../../i686-w64-mingw32/include/unknwn.h:67:25: error:   overriding 'virtual HRESULT IUnknown::QueryInterface(const IID&, void**)'

(and many more)

https://ci.gstreamer.net/job/cerbero-cross-mingw32/6407/console
2017-07-19 02:27:29 +05:30
Nirbheek Chauhan
b63fb59a11 Revert "decklink: Fix debug logging warnings on Windows"
This reverts commit 845832263b.

The commit broke cross-mingw CI:
https://ci.gstreamer.net/job/GStreamer-master/8659/console

It seems that cross-mingw on Autotools and native-mingw on Meson
disagree about the size of HRESULT. Revert for now till I can
investigate the Meson side of things some more.
2017-05-05 18:52:24 +05:30
Nirbheek Chauhan
845832263b decklink: Fix debug logging warnings on Windows
HRESULT is unsigned long int, not unsigned int
2017-05-05 17:49:22 +05:30
Sebastian Dröge
f9a8b843df decklink: Print the Decklink API error return values in debug output in all places 2016-09-21 09:31:41 -04:00
Sebastian Dröge
8be08ee7fd decklink: Fix indentation 2016-09-01 14:18:33 +03:00
Sebastian Dröge
1da1a3afc9 decklinkaudiosink: Fix compiler warning on OS X
While gint64 and int64_t are always the same, clang does not agree with that.

/Applications/Xcode.app/Contents/Developer/usr/bin/make -C decklink
  CXX      libgstdecklink_la-gstdecklinkaudiosink.lo
gstdecklinkaudiosink.cpp:675:79: error: cannot initialize a parameter of type 'int64_t *' (aka 'long long *') with an rvalue of type 'gint64 *' (aka 'long *')
      ret = buf->output->attributes->GetInt (BMDDeckLinkMaximumAudioChannels, &max_channels);
                                                                              ^~~~~~~~~~~~~
./linux/DeckLinkAPI.h:692:87: note: passing argument to parameter 'value' here
    virtual HRESULT GetInt (/* in */ BMDDeckLinkAttributeID cfgID, /* out */ int64_t *value) = 0;
                                                                                      ^
2016-08-26 16:05:11 +03:00
Sebastian Dröge
6fdd4d8288 decklinkaudiosink: Add support for 8 and 16 channels 2016-08-26 15:49:40 +03:00
Vineeth TM
8cdfb13658 bad: use new gst_element_class_add_static_pad_template()
https://bugzilla.gnome.org/show_bug.cgi?id=763081
2016-03-24 14:56:51 +02:00
Sebastian Dröge
408f0870a6 decklinkaudio{src,sink}: Only start streams / scheduled playback if there is a videosrc at this point 2015-02-09 17:15:21 +01:00
Sebastian Dröge
4de7fdfa3a decklinkaudiosink: Throttle reading from the ringbuffer
The driver has an internal buffer of unspecified and unconfigurable size, and
it will pull data from our ring buffer as fast as it can until that is full.
Unfortunately that means that we pull silence from the ringbuffer unless its
size is by conincidence larger than the driver's internal ringbuffer.

The good news is that it's not required to completely fill the buffer for
proper playback. So we now throttle reading from the ringbuffer whenever
the driver has buffered more than half of our ringbuffer size by waiting
on the clock for the amount of time until it has buffered less than that
again.
2015-02-09 16:22:39 +01:00
Sebastian Dröge
a6bcd09b6c decklinkaudiosink: Start scheduled playback when going to PLAYING
The ringbuffer's acquire() is too early, and ringbuffer's start() will only be
called after the clock has advanced a bit... which it won't unless we start
scheduled playback.
2015-02-09 16:22:39 +01:00
Sebastian Dröge
4eb5cd9156 decklink{audio,video}sink: Only start scheduled playback once both sources are ready and we are in PLAYING
Otherwise we might start the scheduled playback before the audio or video streams are
actually enabled, and then error out later because they are enabled to late.

We enable the streams when getting the caps, which might be *after* we were
set to PLAYING state.
2015-01-28 16:13:16 +01:00
Sebastian Dröge
00176a1ddf decklink: Make sure our clock never returns NONE, always advances and does not jump when going from PAUSED to PLAYING
It basically behaves the same as the audio clocks.
2015-01-28 16:13:16 +01:00
Sebastian Dröge
65119ae8b4 decklink: Fix indention once again 2015-01-13 19:56:45 +01:00
Sebastian Dröge
b79ece392c decklink: Initialize refcount of our C++ classes in the constructor
CID 1262288
CID 1262287
CID 1262289
2015-01-12 15:58:38 +01:00
Sebastian Dröge
f9d16c5913 decklink: Remove in-same-pipeline detection code for audio/video elements of the same device
This causes deadlocks sometimes for some reason.
2014-12-19 14:40:40 +01:00
Sebastian Dröge
aac0027ed2 decklink: Implement latency query in sources and remember selected mode 2014-12-19 14:40:40 +01:00
Sebastian Dröge
6d931a0c0e decklink: Add initial version of audio and video sources 2014-12-19 14:40:39 +01:00
Sebastian Dröge
57d46fe9e1 decklink: Initial version of the audio/video sink rewrite 2014-12-19 14:40:39 +01:00