Commit graph

30 commits

Author SHA1 Message Date
Jan Schmidt
436d33b288 splitmuxsink: add the ability to mux auxilliary video streams
The primary video stream is used to select fragment cut points
at keyframe boundaries. Auxilliary video streams may be
broken up at any packet - so fragments may not start with a keyframe
for those streams.
2019-07-15 11:46:36 +00:00
John Nikolaides
6fe214e7a9 splitmuxsink: Added a split-at-running-time action signal
The video file can now be split at an arbitrary time, given by the user
as an argument to the action signal.

https://bugzilla.gnome.org/show_bug.cgi?id=787922
2018-09-28 16:53:29 +03:00
Mathieu Duponchelle
9605028a71 splitmuxsink: Implement split-after
The behaviour of split-now is to output the current GOP after
starting a new file.

The newly-added split-after signal will output the current GOP
to the old file if possible once a new GOP is opened.

https://bugzilla.gnome.org/show_bug.cgi?id=796982
2018-09-21 16:31:34 +02:00
Jan Schmidt
f8076e208b splitmuxsink: Fix reference counting loop
The stream context was holding a reference to the
internal queue and pads, with pad probes that were
in turn holding references to the stream context.

This lead to a leak if the request pads weren't explicitly
released.

https://bugzilla.gnome.org/show_bug.cgi?id=796893
2018-08-15 02:12:53 +10:00
Vivia Nikolaidou
d11339d616 splitmuxsink: Added new async-finalize mode
This mode is useful for muxers that can take a long time to finalize a
file. Instead of blocking the whole upstream pipeline while the muxer is
doing its stuff, we can unlink it and spawn a new muxer+sink combination
to continue running normally.

This requires us to receive the muxer and sink (if needed) as factories,
optionally accompanied by their respective properties structures. Also
added the muxer-added and sink-added signals, in case custom code has to
be called for them.

https://bugzilla.gnome.org/show_bug.cgi?id=783754
2018-05-24 12:47:24 +03:00
Sebastian Dröge
0f1770f2bd splitmuxsink: Add new reset-muxer property
With this the muxer is not set to NULL after each segment but instead
only flush events are sent to it to reset the EOS state.

As a result, the muxer will keep stream state and e.g. mpegtsmux will
keep the packet continuity counter continuous between segments as needed
by hlssink2.

https://bugzilla.gnome.org/show_bug.cgi?id=794816
2018-04-03 14:37:44 +03:00
John Nikolaides
91dfc20a04 splitmuxsink: added a "split now" action signal
Now, the video file can be split at an arbitrary time chosen by the user.

https://bugzilla.gnome.org/show_bug.cgi?id=787922
2017-12-08 21:16:15 +02:00
Jan Schmidt
76e458a119 splitmuxsink: Use muxer reserved space properties if present.
If the use-robust-muxing property is set, check if the
assigned muxer has reserved-max-duration and
reserved-duration-remaining properties, and if so set
the configured maximum duration to the reserved-max-duration
property, and monitor the remaining space to start
a new file if the reserved header space is about to run out -
even though it never ought to.
2017-11-25 00:56:11 +11:00
Vivia Nikolaidou
a910329f6d splitmuxsink: Add alignment-threshold argument
If a non-reference stream is behind the reference stream by an amount of
time smaller than the alignment threshold (in nsec), it counts as being
after it.

https://bugzilla.gnome.org/show_bug.cgi?id=782563
2017-05-16 15:30:52 +03:00
Olivier Crête
d8868c6339 splitmuxsink: Change files on incompatible caps
https://bugzilla.gnome.org/show_bug.cgi?id=761761
2017-02-17 15:11:02 -05:00
Olivier Crête
5059b9b8c9 splitmuxsink: Remove unused next_max_out_running_time
https://bugzilla.gnome.org/show_bug.cgi?id=761761
2017-02-17 15:11:02 -05:00
Olivier Crête
c98d932fb8 splitmuxsink: Remove unused muxed_out_time
https://bugzilla.gnome.org/show_bug.cgi?id=761761
2017-02-17 15:11:02 -05:00
Vivia Nikolaidou
05db87de21 splitmuxsink: Add option for timecode-based split
If this option is given, it will calculate the next split point based on
timecode difference.

https://bugzilla.gnome.org/show_bug.cgi?id=774209
2017-01-13 10:37:32 +11:00
Jan Schmidt
335c9f28d6 splitmux: Rewrite buffer collection and scheduling
Majorly change the way that splitmuxsink collects
incoming data and sends it to the output, so that it
makes all decisions about when / where to split files
on the input side.

Use separate queues for each stream, so they can be
grown individually and kept as small as possible.

This removes raciness I observed where sometimes
some data would end up put in a different output file
over multiple runs with the same input.

Also fixes hangs with input queues getting full
and causing muxing to stall out.
2017-01-03 01:34:02 +11:00
Jan Schmidt
f7009eb5d7 splitmuxsink: Add format-location-full signal
Add a new signal for formatting the filename, which receives
a GstSample containing the first buffer from the reference
stream that will be muxed into that file.

Useful for creating filenames that are based on the
running time or other attributes of the buffer.

To make it work, opening of files and setting filenames is
now deferred until there is some data to write to it,
which also requires some changes to how async state changes
and gap events are handled.
2017-01-03 01:34:02 +11:00
Vivia Nikolaidou
bbd4dd2fb1 splitmuxsink: Use first buffer TS as mux start time
Do not use last buffer TS + buffer duration because buffer duration
might be inaccurate, especially for frame rates like 30fps where a
rounding error is observed.

https://bugzilla.gnome.org/show_bug.cgi?id=773785
2016-11-08 21:09:12 +11:00
Jan Schmidt
5067d7254f splitmuxsink: Only allow one video request pad
The pacing of the overall muxing is controlled
by the video GOPs arriving, so we can only handle
1 video stream, and the request pad is named accordingly.

Ignore a request for a 2nd video pad if there's already
an active one.
2016-10-26 20:17:40 +11:00
Jie Jiang
655856deee Fixed splitmuxsink 32-bit overflow bug
Extend the byte tracking counters to 64-bit on
all platforms, instead of using gsize, which overflows
after 4GB.

https://bugzilla.gnome.org/show_bug.cgi?id=770019
2016-08-20 19:53:11 +10:00
Vivia Nikolaidou
b9a8188704 splitmuxsink: Add option to split at exactly max-size-time
Will try to request a keyframe from the encoder to be sent at the target
running time.

https://bugzilla.gnome.org/show_bug.cgi?id=769664
2016-08-17 17:42:55 +10:00
Jan Schmidt
5a71334fb0 Revert "splitmuxsink: Use GstBin async-handling instead of our own."
This reverts commit fa008f271a.

async-handling in GstBin causes the pipeline to spin at 100%
CPU as the top-level pipeline tries to change that state
to PLAYING constantly. This is a workaround for a core
problem, essentially, but an improvement in this case for now.
2016-08-08 03:07:34 +10:00
Jan Schmidt
6755691b28 splitmuxsink: Handle negative running time
Use signed clock times for running time everywhere
so that we handle negative running times without
going haywire, similar to what queue and multiqueue
do these days.
2016-07-20 00:39:38 +10:00
Jan Schmidt
fa008f271a splitmuxsink: Use GstBin async-handling instead of our own.
Set the async-handling property on GstBin to let it manage
async-handling instead of the local handling from the previous
commit. Works because of #174a5e in core
2016-05-15 00:03:15 +10:00
Jan Schmidt
08af8cd5b8 splitmuxsink: Hide internal async state changes.
When switching fragments, hide the async-start/async-done
messages from the parent bin, as otherwise we sometimes (very rarely)
hang in PAUSED instead of returning / continuing to PLAYING
state.
2016-05-14 18:34:57 +10:00
Damian Ziobro
ae4484c2ba splitmuxsink: Add max_files_number property
https://bugzilla.gnome.org/show_bug.cgi?id=744612
2016-04-14 04:18:11 +10:00
George Kiagiadakis
5e4caca709 splitmuxsink: post messages when fragments are being opened and closed
This can be useful for applications that need to track the created fragments
(to log them in a recording database, for example)

https://bugzilla.gnome.org/show_bug.cgi?id=750108
2015-10-03 00:52:23 +10:00
Ramiro Polla
f0a47d0b60 splitmuxsink: allow non-video streams to serve as reference
In the absence of a video stream, the first stream will be used as
reference.

https://bugzilla.gnome.org/show_bug.cgi?id=753617
2015-10-03 00:44:58 +10:00
Jan Schmidt
b26bbae695 Revert "splitmuxsink: Mask async-start/done while switching files."
This reverts commit d61e5393f1.

Causes failures muxing larger GOP sizes for some reason. Reverting
while I figure it out
2015-06-23 17:33:03 +10:00
Jan Schmidt
d61e5393f1 splitmuxsink: Mask async-start/done while switching files.
Sometimes, extra async-start/done from the internal sink
while the element is still starting up can cause splitmuxsink
to stall in PAUSED state when it has been set to PLAYING
by the app. Drop the child's async-start/done messages while
switching, so they don't cause state changes at the
splitmuxsink level.

https://bugzilla.gnome.org/show_bug.cgi?id=750747
2015-06-23 12:03:14 +10:00
Jan Schmidt
3f39d06338 splitmuxsink: Take released-but-not-yet-output bytes into account
When deciding whether it's time to switch to a new file, take into
account data that's been released for pushing, but hasn't yet
been pushed - because downstream is slow or the threads haven't been
scheduled.

Fixes a race in the unit test and probably in practice - sometimes
failing to switch when it should for an extra GOP or two.

Also fix a problem in splitmuxsrc where playback sometimes
stalls at startup if types are found too quickly.

https://bugzilla.gnome.org/show_bug.cgi?id=750747
2015-06-12 01:57:36 +10:00
Jan Schmidt
5e2214d309 splitmux: Implement new elements for splitting files at mux level.
Implement 2 new elements - splitmuxsink and splitmuxsrc.

splitmuxsink is a bin which wraps a muxer and takes 1 video stream,
plus audio/subtitle streams, and starts a new file
whenever necessary to avoid overrunning a threshold of either bytes
or time. New files are started at a keyframe, and corresponding audio
and subtitle streams are split at packet boundaries to match
video GOP timestamps.

splitmuxsrc is a corresponding source element which handles
the splitmux:// URL and plays back all component files,
reconstructing the original elementary streams as it goes.
2015-02-06 04:26:59 +11:00