Commit graph

4 commits

Author SHA1 Message Date
Sebastian Dröge
bbf131086a livesync: Synchronize on the first buffer too
Previously the first buffer would be output immediately and
synchronization would only happen from the second buffer onwards.
This would mean that the first buffer would potentially be output too
early.

Instead, if there is no known output timestamp yet but a buffer with a
timestamp, first of all take its start as the initial output timestamp
and synchronize on that buffer.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1635>
2024-06-26 16:21:42 +00:00
Sebastian Dröge
6556d31ab8 livesync: Ignore another racy test
Same problem as https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/issues/328
2024-03-21 09:27:09 +02:00
Guillaume Desmottes
2629719b4e livesync: disable racy tests
https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/issues/328
https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/issues/357

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1494>
2024-03-12 16:32:47 +01:00
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