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mssdemux: only add live fragments after manifest fragments

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A live manifest may have a set (> LookAheadFragmentCount) of fragments
that have already been served and are stored on the server, maybe
indefinitely.  Adding the parsed live fragments after the manifest
fragments breaks duration reporting and the seekable range.

Fix by only adding parsed fragments outside the list of fragments which
assumes that the fragment list in the manifest is accurate enough to not
stray too far off what's in the retrieved data.

https://bugzilla.gnome.org/show_bug.cgi?id=779447
This commit is contained in:
Matthew Waters 2017-03-01 20:51:43 +11:00
parent ba0e1df657
commit 0a25fe2893
1 changed files with 14 additions and 15 deletions
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29
ext/smoothstreaming/gstmssmanifest.c
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@ -271,8 +271,7 @@ _gst_mss_stream_init (GstMssManifest * manifest, GstMssStream * stream,
for (iter = node->children; iter; iter = iter->next) {
if (node_has_type (iter, MSS_NODE_STREAM_FRAGMENT)) {
if (!stream->has_live_fragments || !builder.fragments)
gst_mss_fragment_list_builder_add (&builder, iter);
gst_mss_fragment_list_builder_add (&builder, iter);
} else if (node_has_type (iter, MSS_NODE_STREAM_QUALITY)) {
GstMssStreamQuality *quality = gst_mss_stream_quality_new (iter);
stream->qualities = g_list_prepend (stream->qualities, quality);
@ -934,7 +933,7 @@ guint64
gst_mss_manifest_get_duration (GstMssManifest * manifest)
{
gchar *duration;
guint64 dur = -1;
guint64 dur = 0;
/* try the property */
duration =
@ -1230,11 +1229,6 @@ gst_mss_stream_seek (GstMssStream * stream, gboolean forward,
GST_DEBUG ("Stream %s seeking to %" G_GUINT64_FORMAT, stream->url, time);
for (iter = stream->fragments; iter; iter = g_list_next (iter)) {
fragment = iter->data;
if (stream->has_live_fragments) {
if (fragment->time + fragment->repetitions * fragment->duration > time)
stream->current_fragment = iter;
break;
}
if (fragment->time + fragment->repetitions * fragment->duration > time) {
stream->current_fragment = iter;
stream->fragment_repetition_index =
@ -1630,25 +1624,30 @@ gst_mss_stream_parse_fragment (GstMssStream * stream, GstBuffer * buffer)
GList *l = g_list_last (stream->fragments);
GstMssStreamFragment *last;
GstMssStreamFragment *fragment;
guint64 parsed_time = stream->fragment_parser.tfrf.entries[index].time;
guint64 parsed_duration =
stream->fragment_parser.tfrf.entries[index].duration;
if (l == NULL)
break;
last = (GstMssStreamFragment *) l->data;
if (last->time == stream->fragment_parser.tfrf.entries[index].time)
/* only add the fragment to the list if it's outside the time in the
* current list */
if (last->time >= stream->fragment_parser.tfrf.entries[index].time)
continue;
fragment = g_new (GstMssStreamFragment, 1);
fragment->number = last->number + 1;
fragment->repetitions = 1;
fragment->time = stream->fragment_parser.tfrf.entries[index].time;
fragment->duration = stream->fragment_parser.tfrf.entries[index].duration;
fragment->time = parsed_time;
fragment->duration = parsed_duration;
stream->fragments = g_list_append (stream->fragments, fragment);
GST_LOG ("Adding fragment number: %u to %s stream, time: %" G_GUINT64_FORMAT
", duration: %" G_GUINT64_FORMAT ", repetitions: %u",
fragment->number, stream_type_name,
fragment->time, fragment->duration, fragment->repetitions);
GST_LOG ("Adding fragment number: %u to %s stream, time: %"
G_GUINT64_FORMAT ", duration: %" G_GUINT64_FORMAT ", repetitions: %u",
fragment->number, stream_type_name, fragment->time,
fragment->duration, fragment->repetitions);
}
}