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dashdemux: Two depth seeking for On-Demand profile

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Try to find fragment using MPD first, then do refinement to find
target subframgnet using SIDX if possible. Note that, if target fragment
was moved from the previously activated one, we should assume that
the last SIDX is invalid for new fragment.

https://bugzilla.gnome.org/show_bug.cgi?id=776200
This commit is contained in:
Seungha Yang 2017-03-14 20:15:31 +09:00 committed by Sebastian Dröge
parent ad015ceef5
commit a599067786
1 changed files with 18 additions and 4 deletions
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22
ext/dash/gstdashdemux.c
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@ -1308,6 +1308,10 @@ gst_dash_demux_stream_seek (GstAdaptiveDemuxStream * stream, gboolean forward,
{
GstDashDemuxStream *dashstream = (GstDashDemuxStream *) stream;
GstDashDemux *dashdemux = GST_DASH_DEMUX_CAST (stream->demux);
gint last_index, last_repeat;
last_index = dashstream->active_stream->segment_index;
last_repeat = dashstream->active_stream->segment_repeat_index;
if (dashstream->moof)
gst_isoff_moof_box_free (dashstream->moof);
@ -1317,7 +1321,21 @@ gst_dash_demux_stream_seek (GstAdaptiveDemuxStream * stream, gboolean forward,
dashstream->moof_sync_samples = NULL;
dashstream->current_sync_sample = -1;
gst_mpd_client_stream_seek (dashdemux->client, dashstream->active_stream,
forward, flags, ts, final_ts);
if (gst_mpd_client_has_isoff_ondemand_profile (dashdemux->client)) {
if (last_index != dashstream->active_stream->segment_index ||
last_repeat != dashstream->active_stream->segment_repeat_index) {
GST_LOG_OBJECT (stream->pad,
"Segment index was changed, reset sidx parser");
gst_isoff_sidx_parser_clear (&dashstream->sidx_parser);
gst_isoff_sidx_parser_init (&dashstream->sidx_parser);
dashstream->sidx_base_offset = 0;
if (dashstream->sidx_adapter)
gst_adapter_clear (dashstream->sidx_adapter);
}
if (dashstream->sidx_parser.status == GST_ISOFF_SIDX_PARSER_FINISHED) {
gst_dash_demux_stream_sidx_seek (dashstream, forward, flags, ts,
final_ts);
@ -1326,12 +1344,8 @@ gst_dash_demux_stream_seek (GstAdaptiveDemuxStream * stream, gboolean forward,
/* FIXME - the final_ts won't be correct here */
dashstream->pending_seek_ts = ts;
}
return GST_FLOW_OK;
}
gst_mpd_client_stream_seek (dashdemux->client, dashstream->active_stream,
forward, flags, ts, final_ts);
return GST_FLOW_OK;
}