audioaggregator: Reset offset if the output rate is renegotiated

On next aggregation the new offset will be calculated based on the
segment position.

Without this a rate change would cause a jump forwards or backwards in
the output timeline.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/merge_requests/794>

diff --git a/gst-libs/gst/audio/gstaudioaggregator.c b/gst-libs/gst/audio/gstaudioaggregator.c
index f9acc6d..ac8ee8c 100644 (file)
--- a/gst-libs/gst/audio/gstaudioaggregator.c
+++ b/gst-libs/gst/audio/gstaudioaggregator.c
@@ -1099,6 +1099,9 @@ gst_audio_aggregator_negotiated_src_caps (GstAggregator * agg, GstCaps * caps)
     GST_INFO_OBJECT (aagg, "setting caps to %" GST_PTR_FORMAT, caps);
     gst_caps_replace (&aagg->current_caps, caps);
 
+    if (old_info.rate != info.rate)
+      aagg->priv->offset = -1;
+
     memcpy (&srcpad->info, &info, sizeof (info));
 
     gst_audio_aggregator_update_converters (aagg, &info, &old_info);