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adaptivedemux2: track: Fix buffering time calc before output

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Use the lowest track input time as the output
time when calculating track buffering levels
before anything has been dequeued.

Fixes multi-period DASH not advancing to the
next period in some cases.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2650>
This commit is contained in:
Jan Schmidt 2022-06-22 03:35:03 +10:00 committed by GStreamer Marge Bot
parent 16a04f7697
commit 61e4f058ef
1 changed files with 16 additions and 6 deletions
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22
subprojects/gst-plugins-good/ext/adaptivedemux2/gstadaptivedemux-track.c
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@ -45,7 +45,8 @@ gst_adaptive_demux_track_flush (GstAdaptiveDemuxTrack * track)
gst_event_store_flush (&track->sticky_events); gst_event_store_flush (&track->sticky_events);
gst_segment_init (&track->input_segment, GST_FORMAT_TIME); gst_segment_init (&track->input_segment, GST_FORMAT_TIME);
track->lowest_input_time = track->input_time = 0; track->lowest_input_time = GST_CLOCK_STIME_NONE;
track->input_time = 0;
track->input_segment_seqnum = GST_SEQNUM_INVALID; track->input_segment_seqnum = GST_SEQNUM_INVALID;
gst_segment_init (&track->output_segment, GST_FORMAT_TIME); gst_segment_init (&track->output_segment, GST_FORMAT_TIME);
@ -470,6 +471,9 @@ track_queue_data_locked (GstAdaptiveDemux * demux,
} }
/* Update track input time and level */ /* Update track input time and level */
if (!GST_CLOCK_STIME_IS_VALID (track->lowest_input_time))
track->lowest_input_time = track->input_time;
if (track->input_segment.rate > 0.0) { if (track->input_segment.rate > 0.0) {
if (input_time > track->input_time) { if (input_time > track->input_time) {
track->input_time = input_time; track->input_time = input_time;
@ -494,11 +498,17 @@ track_queue_data_locked (GstAdaptiveDemux * demux,
* this item's "buffering running time" */ * this item's "buffering running time" */
item.runningtime_buffering = track->input_time; item.runningtime_buffering = track->input_time;
if (GST_CLOCK_STIME_IS_VALID (track->output_time)) /* Configure the track output time if nothing was dequeued yet,
output_time = * so buffering level is updated correctly */
MAX (track->output_time, demux->priv->global_output_position); if (!GST_CLOCK_STIME_IS_VALID (track->output_time)) {
else track->output_time = track->lowest_input_time;
output_time = track->input_time; GST_LOG_OBJECT (track->sinkpad,
"track %s (period %u) set output_time = lowest input_time = %"
GST_STIME_FORMAT, track->stream_id, track->period_num,
GST_STIME_ARGS (track->output_time));
}
output_time = MAX (track->output_time, demux->priv->global_output_position);
if (track->input_time >= output_time) if (track->input_time >= output_time)
track->level_time = track->input_time - output_time; track->level_time = track->input_time - output_time;