1) download http://people.freedesktop.org/~tpm/samples/chained.ogg

2) gst-launch-1.0 playbin uri=file:///path/to/chained.ogg -v

After the first change, it stops playback and just skips through the entire file. It looks like that's because the timestamps aren't adjusted/offset, but start from 0 again, and then they get dropped at the sink:

0:00:24.660701828  gst_base_sink_chain_unlocked:<audiosink-actual-sink-pulse> rendering object 0x23f65f0
0:00:24.660730882  gst_audio_base_sink_render:<audiosink-actual-sink-pulse> time 0:00:02.821224489, offset 18446744073709551615, start 0:00:00.000000000, samples 128
0:00:24.660750368  gst_audio_base_sink_render:<audiosink-actual-sink-pulse> sync-offset 0, render-delay 0:00:00.000000000, ts-offset 0
0:00:24.660765035  gst_audio_base_sink_render:<audiosink-actual-sink-pulse> running: start 0:00:02.821224489 - stop 0:00:02.824126983
0:00:24.660779492  gst_audio_base_sink_render:<audiosink-actual-sink-pulse> final timestamps: start 0:00:02.821224489 - stop 0:00:02.824126983
0:00:24.660792273  gst_audio_base_sink_render:<audiosink-actual-sink-pulse> apply time offset 0:00:23.054044000
0:00:24.660803867  gst_audio_base_sink_render:<audiosink-actual-sink-pulse> dropping late sample


Not sure who's responsible for adjusting things - oggdemux, streamsynchronizer, the audio sink ?