Commit graph

5 commits

Author SHA1 Message Date
Jan Schmidt
a03f3df626 adaptivedemux2: Rework input download wakeups
Change the way streams are woken up to download more data.

Instead of checking the level on tracks that are being
output as data is dequeued, calculate a 'wakeup time'
at which it should download more data, and wake up
the stream when the global output position crosses
that threshold.

For efficiency, compute the earliest wakeup time
for all streams and store it on the period, so the
output loop can quickly check only a single value
to decide if something needs waking up.

Does the same buffering as the previous method,
but ensures that as we approach the end of
one period, the next period continues incrementally
downloading data so that it is fully buffered when
the period starts.

Fixes issues with multi-period VOD content where
download of the second period resumes only after
the first period is completely drained.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3055>
2022-09-20 19:48:17 +00:00
Jan Schmidt
1060f72f90 adaptivedemux2: Move internal FLOW_SWITCH return value.
Move the internal-only FLOW_SWITCH custom return value
to GST_FLOW_CUSTOM_SUCCESS+2 to avoid collision with
GST_ADAPTIVE_DEMUX_FLOW_LOST_SYNC

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2839>
2022-08-04 14:49:33 +01:00
Edward Hervey
d88d7d5b55 adaptivedemux2: Handle loss of synchronization
Add a new custom GstFlowReturn so that subclasses can notify that they have lost
live synchronization.

When that happens, do a flushing seek back to the live position

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2679>
2022-06-28 17:59:23 +00:00
Jan Schmidt
a4a805312d adaptivedemux2: reverse playback running times
Account for running time moving non-monotonically in
reverse playback by tracking the highest running time
seen at each point.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2510>
2022-06-14 13:06:49 +01:00
Edward Hervey
af78c16dd5 New HLS, DASH and MSS adaptive demuxer elements
This provides new HLS, DASH and MSS adaptive demuxer elements as a single plugin.

These elements offer many improvements over the legacy elements. They will only
work within a streams-aware context (`urisourcebin`, `uridecodebin3`,
`decodebin3`, `playbin3`, ...).

Stream selection and buffering is handled internally, this allows them to
directly manage the elementary streams and stream selection.

Authors:
* Edward Hervey <edward@centricular.com>
* Jan Schmidt <jan@centricular.com>
* Piotrek Brzeziński <piotr@centricular.com>
* Tim-Philipp Müller <tim@centricular.com>

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2117>
2022-04-18 14:11:23 +00:00