Commit graph

63 commits

Author SHA1 Message Date
Sebastian Dröge
1e13dbb99c Update versions to 0.11.0-alpha.1 2023-02-10 00:23:56 +02:00
Jan Alexander Steffens (heftig)
f55c32ed37 livesync: Document State's fields
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1083>
2023-02-09 13:07:33 +01:00
Jan Alexander Steffens (heftig)
953773a314 livesync: Improve formatting
Move some code around to make it a bit more readable. No change in
behavior.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1083>
2023-02-09 13:07:33 +01:00
Jan Alexander Steffens (heftig)
c1bfeb4c23 livesync: Fix log message capitalization
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1083>
2023-02-09 13:07:33 +01:00
Jan Alexander Steffens (heftig)
0af7151ae9 livesync: Extract LiveSync::flow_error
And add details so it behaves more like the `GST_ELEMENT_FLOW_ERROR`
macro.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1083>
2023-02-09 13:07:32 +01:00
Jan Alexander Steffens (heftig)
f03ee95bf0 livesync: Extract audio_info_from_caps
And adjust it slightly so it never panics.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1083>
2023-02-09 13:07:32 +01:00
Jan Alexander Steffens (heftig)
c971c4d1d5 livesync: Move single segment prop
Keep it with the settings, not after the stats.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1083>
2023-02-09 13:07:32 +01:00
Jan Alexander Steffens (heftig)
165b5f8c50 livesync: Fix queueing
The logic of the element requires the next buffer to be available
immediately after we are done pushing the previous, otherwise we insert
a repeat.

Making the src loop handle events and queries broke this, as upstream is
almost guaranteed not to deliver a buffer in time if we allow non-buffer
items to block upstream's push.

To fix this, replace our single-item `Option` with a `VecDeque` that we
allow to hold an unlimited number of events or queries, but only one
buffer at a time.

In addition, the code was confused about the current caps and segment.

This wasn't an issue before making the src loop handle events and
queries, as only the sinkpad cared about the current segment, using it
to buffers received, and only the srcpad cared about the current caps,
sending it just before sending the next received buffer.

Now the sinkpad cares about caps (through `update_fallback_duration`)
and the srcpad cares about the segment (when not in single-segment
mode).

Fix this by
  - making `in_caps` always hold the current caps of the sinkpad,
  - adding `pending_caps`, which is used by the srcpad to store
    caps to be sent with the next received buffer,
  - adding `in_segment`, holding the current segment of the sinkpad,
  - adding `pending_segment`, which is used by the srcpad to store
    the segment to be sent with the next received buffer,
  - adding `out_segment`, holding the current segment of the srcpad.

Maybe a fix for
https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/issues/298.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1082>
2023-02-09 12:44:47 +01:00
Jan Alexander Steffens (heftig)
33696a8aed livesync: Only resend segment if not in single-segment mode
In single-segment mode, the outgoing segment does not change when the
incoming segment changes. We only need to resend the segment if we got
flushed or deactivated.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1069>
2023-01-30 15:37:00 +00:00
Sebastian Dröge
c7209dbd4f Return exit code from gio::Application::run() from main()
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1065>
2023-01-27 18:50:01 +00:00
Guillaume Desmottes
570eb7463a livesync: fix late-threshold property min value
The code is handling 0 as "always over threshold" but it was not
possible to set the property to 0.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1049>
2023-01-17 10:54:05 +01:00
Sebastian Dröge
620ba6e185 livesync: Fix version 2022-12-16 18:53:37 +02:00
Jan Alexander Steffens (heftig)
42385c81be Add livesync plugin
It attempts to produce a (nearly) gapless live stream by synchronizing
its output to the running time and forwarding the next input buffer if
its start is (nearly) flush with the end of the last output buffer.

If the input buffer is missing or too far in the future, it duplicates
the last output buffer with adjusted timestamps. If it is operating on a
raw audio stream, it will fill duplicate buffers with silence.

If an input buffer arrives too late, it is thrown away. If the last
input buffer was accepted too long ago (according to `late-threshold`),
a late input buffer is accepted anyway, but immediately considered a
duplicate. Due to the silence-filling, this has no effect on audio, but
video gets a "slideshow" effect instead of freezing completely.

The "many-repeats" property will be notified when this element has
recently duplicated a lot of buffers or recovered from such a state.

Co-authored-by: Vivia Nikolaidou <vivia@ahiru.eu>
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/708>
2022-12-14 18:51:36 +02:00