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hlsdemux: don't try to access non-existant iframe variant

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If the playlist does not contain any iframe variants then
demux->master->iframe_variants is NULL. If the previous variant is an
iframe variant then there is at least one iframe variant and
demux->master->iframe_variants->data can be safely used.

https://bugzilla.gnome.org/show_bug.cgi?id=773635
This commit is contained in:
Michael Olbrich 2016-10-28 10:05:20 +02:00 committed by Sebastian Dröge
parent ae2a5f1ba9
commit c2920ec3ea
1 changed files with 10 additions and 8 deletions
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18
ext/hls/gsthlsdemux.c
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@ -1574,14 +1574,16 @@ retry_failover_protection:
GST_M3U8_CLIENT_UNLOCK (demux->client);
gst_hls_demux_set_current_variant (demux, previous_variant);
/* Try a lower bitrate (or stop if we just tried the lowest) */
lowest_variant = demux->master->variants->data;
lowest_ivariant = demux->master->iframe_variants->data;
if (previous_variant->iframe && new_bandwidth == lowest_ivariant->bandwidth)
return FALSE;
if (!previous_variant->iframe && new_bandwidth == lowest_variant->bandwidth)
return FALSE;
else
return gst_hls_demux_change_playlist (demux, new_bandwidth - 1, changed);
if (previous_variant->iframe) {
lowest_ivariant = demux->master->iframe_variants->data;
if (new_bandwidth == lowest_ivariant->bandwidth)
return FALSE;
} else {
lowest_variant = demux->master->variants->data;
if (new_bandwidth == lowest_variant->bandwidth)
return FALSE;
}
return gst_hls_demux_change_playlist (demux, new_bandwidth - 1, changed);
}
return TRUE;