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Add fast seeking (disabled by default)

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The fast seeking option. It seeks to the next keyframe which reduces seeking delay over 10 times, but makes the seeking very inaccurate as a side effect (usually up to few seconds from requested position).
This commit is contained in:
Rafostar
2020-10-16 20:00:22 +02:00
parent 1119e3e792
commit 7f1264ae27
2 changed files with 16 additions and 10 deletions
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1
clapper_src/interface.js
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@@ -446,7 +446,6 @@ class ClapperInterface extends Gtk.Grid
this.lastPositionValue = positionSeconds;
this._player.seek_seconds(positionSeconds);
debug(`player is seeking to position: ${positionSeconds}`);
/* Needed to enable preview after playback is stopped */
if(this._player.state === GstPlayer.PlayerState.STOPPED)

25
clapper_src/player.js
View File

@@ -52,7 +52,7 @@ class ClapperPlayer extends GstPlayer.Player
this.gstRegistry = Gst.Registry.get();
this.is_local_file = false;
this.seek_done = true;
this.seek_done = false;
this._playerSignals = [];
this._widgetSignals = [];
@@ -77,6 +77,7 @@ class ClapperPlayer extends GstPlayer.Player
this.widget = gtkglsink.widget;
this.state = GstPlayer.PlayerState.STOPPED;
this.visualization_enabled = false;
this.fast_seeking = opts.fast_seeking || false;
this._playlist = [];
this._trackId = 0;
@@ -101,7 +102,6 @@ class ClapperPlayer extends GstPlayer.Player
this.connect('state-changed', this._onStateChanged.bind(this));
this.connect('uri-loaded', this._onUriLoaded.bind(this));
this.connect('seek-done', this._onSeekDone.bind(this));
this.connect('end-of-stream', this._onStreamEnded.bind(this));
this.connect('warning', this._onPlayerWarning.bind(this));
this.connect('error', this._onPlayerError.bind(this));
@@ -203,8 +203,17 @@ class ClapperPlayer extends GstPlayer.Player
seek(position)
{
this.seek_done = false;
debug(`player is seeking to position: ${position}`);
super.seek(position);
if(!this.fast_seeking)
return super.seek(position);
let pipeline = this.get_pipeline();
let flags = Gst.SeekFlags.FLUSH
| Gst.SeekFlags.KEY_UNIT
| Gst.SeekFlags.SNAP_AFTER;
pipeline.seek_simple(Gst.Format.TIME, flags, position);
}
seek_seconds(position)
@@ -262,18 +271,16 @@ class ClapperPlayer extends GstPlayer.Player
this.state = state;
if(this.state === GstPlayer.PlayerState.STOPPED) {
this.seek_done = true;
if(
this.run_loop
&& this.loop.is_running()
)
this.loop.quit();
}
}
_onSeekDone()
{
this.seek_done = true;
if(!this.seek_done && this.state !== GstPlayer.PlayerState.BUFFERING) {
this.seek_done = true;
debug('seeking finished');
}
}
_onStreamEnded(player)