Commit graph

37 commits

Author SHA1 Message Date
Sebastian Dröge
aec46143bb decklinksrc: Add property to drop frames that are marked as having no input signal
https://bugzilla.gnome.org/show_bug.cgi?id=774850
2016-11-28 14:27:51 +02:00
Sebastian Dröge
331b2af050 decklinksrc: Add property to skip the first N seconds of capture
On some hardware the first few frames are bogus and not very useful.
Their timestamps are off, they have no timecodes, or there are spurious
black frames / no-signal frames. After a few frames this stabilizes
though.

https://bugzilla.gnome.org/show_bug.cgi?id=774850
2016-11-28 14:27:51 +02:00
Sebastian Dröge
cf224a9990 decklinksrc: Set GAP flag on buffers that are captured without signal
https://bugzilla.gnome.org/show_bug.cgi?id=774850
2016-11-28 14:27:51 +02:00
Sebastian Dröge
09dd64bb4f decklinksrc: Keep track of a window of capture/stream time mappings and calculate relationship
Based on this we calculate the actual capture time, which should get us
rid of any capturing jitter by averaging it out.

Also add a output-stream-time property which forces the elements to
output the stream time directly instead of doing any conversion to the
pipeline clock. Use with care.

https://bugzilla.gnome.org/show_bug.cgi?id=774850
2016-11-28 14:27:51 +02:00
Sebastian Dröge
881a08671e decklinksrc: Stop using the "hardware" timestamps and directly use the pipeline clock
The hardware timestamps have no relation to when frames were produced,
only when frames arrived somewhere in the hardware. Especially there is
no guarantee that audio and video will have the same hardware timestamps
although they belong together, and even more important: the rate with
which the hardware timestamps increase is completely unrelated to the
rate with which the frames are captured!

As such we can as well use the pipeline clock directly and stop doing
complicated calculations. Also as a side effect this allows now running
without any pipeline clock, by directly making use of the stream times
as reported by the driver.

https://bugzilla.gnome.org/show_bug.cgi?id=774850
2016-11-28 14:27:51 +02:00
Vivia Nikolaidou
ab991db7ed decklinkaudiosrc: Ignore channel-mask when checking set_caps compatibility
channel-mask doesn't matter in decklinkaudiosrc, and differences in it
can cause caps negotiations to fail without a real reason.

https://bugzilla.gnome.org/show_bug.cgi?id=773313
2016-11-01 19:39:36 +02:00
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
87503ac174 decklink: Fix indentation 2016-05-03 15:57:23 +03:00
Sebastian Dröge
f06647fd0c decklinkaudiosrc: Don't accept packets without timestamps after a discont
We have no idea which timestamps they are supposed to have so the only thing
we can do at this point is to drop them. Packets without timestamps happen if
audio was captured but no corresponding video, which shouldn't happen under
normal circumstances.

https://bugzilla.gnome.org/show_bug.cgi?id=747633
2016-04-05 14:49:51 +03:00
Sebastian Dröge
0004920c83 decklinkaudiosrc: Don't crash when receiving video frames but no audio
And mark these events as disconts to reset time tracking in the audio source.

https://bugzilla.gnome.org/show_bug.cgi?id=747633
2016-04-05 14:47:00 +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
Jan Schmidt
0d3cd82749 decklinkaudiosrc: Fix discont tracking
Don't reset the marker that's tracking disconts until
either the discont disappears or we resync.
2016-02-04 14:33:09 +11:00
Vivia Nikolaidou
fafc8e564c decklinkvideosink: Made "auto" mode work according to caps
When the mode of decklinkvideosink is set to "auto", the sink claims to
support the full set of caps that it can support for all modes. Then, every
time new caps are set, the sink will automatically find the correct mode for
these caps and set it.

Caveat: We have no way to know whether a specific mode will actually work for
your hardware. Therefore, if you try sending 4K video to a 1080 screen, it
will silently fail, we have no way to know that in advance. Manually setting
that mode at least gave the user a way to double-check what they are doing.

https://bugzilla.gnome.org/show_bug.cgi?id=759600
2015-12-18 16:08:02 +01:00
Sebastian Dröge
e0fd5317df decklink: Disable inputs/outputs in PAUSED->READY to allow going to PAUSED again from there
https://bugzilla.gnome.org/show_bug.cgi?id=755426
2015-09-24 09:32:27 +02:00
Sebastian Dröge
254337365a decklinkaudiosrc: Calculate the duration more accurately from the capture time and numbers of samples
This should prevent any accumulating rounding errors with the duration.
2015-03-04 16:13:30 +01:00
Sebastian Dröge
912e58c64c decklinkaudiosrc: Fix the timestamp and offset calculations even more 2015-03-04 16:07:10 +01:00
Sebastian Dröge
1f9d37c924 decklinkaudiosrc: Don't subtract the duration from the capture time
We already have the real capture time, not the time when we received
the end of the packet.
2015-03-04 16:04:18 +01:00
Sebastian Dröge
8e362aab14 decklink{audio,video}src: Add some more debug output 2015-03-02 13:57:24 +01:00
Sebastian Dröge
f0e85023c2 decklink{audio,video}src: Implement clock slaving if the pipeline clock is not the decklink clock 2015-02-09 17:17:37 +01:00
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
349113d15a decklinkaudiosrc: Don't provide a clock
The audio source only works together with the video source, and the video
source is already providing a clock.
2015-02-09 17:04:27 +01:00
Sebastian Dröge
22b0a4dad5 decklink{audio,video}src: Take the capture times from the pipeline clock
Not from the decklink clock. Both will return exactly the same time once the
decklink clock got slaved to the pipeline clock and received the first
observation, but until then it will return bogus values. But as both return
exactly the same values, we can as well use the pipeline clock directly.
2015-02-08 21:56:04 +01:00
Sebastian Dröge
e2ff5587fe decklink{audio,video}src: Only start the streams once both sources are ready and we are in PLAYING
Otherwise we might start the streams 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
7fb57938c1 decklinkaudiosrc: Don't release input device twice on errors in set_caps() 2015-01-28 16:13:16 +01:00
Sebastian Dröge
c6d5c4c2e1 decklinkaudiosrc: Release the audio input on errors, not the video input 2015-01-26 15:33:45 +01:00
Sebastian Dröge
ed0d4cc653 decklinkaudiosrc: Add property to select the audio input connection 2015-01-08 12:48:22 +01:00
Sebastian Dröge
478deb4805 decklink: Fix indention once again 2015-01-08 12:13:03 +01:00
Florian Langlois
e7c6eb6326 decklink: Fix latency values for sources 2015-01-07 16:42:57 +01:00
Sebastian Dröge
d632a48d6c decklink: Fix various compiler warnings with gcc 2014-12-19 15:05:58 +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
ec90bbb6f3 decklink: Add property for configuring the buffer size of the sources 2014-12-19 14:40:40 +01:00
Sebastian Dröge
112fdd266a decklinkaudiosrc: Implement timestamp jitter and discont handling 2014-12-19 14:40:40 +01:00
Sebastian Dröge
7c0fb92f1b decklink: Our capture time is the end timestamp of the buffer, subtract the duration 2014-12-19 14:40:40 +01:00
Sebastian Dröge
4ef676f109 decklink: Allow for a maximum of 5 packets to be queued up
In case downstream is a bit slow with consuming packets at times.
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