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mpdparser: Refactor to get rid of one level of indentation in seeking code

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Also go out of the segment searching loop once segment->start > ts.
We're not going to find any earlier segment anymore.
This commit is contained in:
Sebastian Dröge 2017-03-06 19:44:02 +02:00
parent ffa63c5933
commit 43d1dd3dad
1 changed files with 36 additions and 37 deletions
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73
ext/dash/gstmpdparser.c
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@ -4765,62 +4765,61 @@ gst_mpd_client_stream_seek (GstMpdClient * client, GstActiveStream * stream,
gint index = 0;
gint repeat_index = 0;
GstMediaSegment *selectedChunk = NULL;
gboolean in_segment;
g_return_val_if_fail (stream != NULL, 0);
if (stream->segments) {
for (index = 0; index < stream->segments->len; index++) {
gboolean in_segment = FALSE;
GstMediaSegment *segment = g_ptr_array_index (stream->segments, index);
GstClockTime end_time;
GST_DEBUG ("Looking at fragment sequence chunk %d / %d", index,
stream->segments->len);
in_segment = FALSE;
if (segment->start <= ts) {
GstClockTime end_time;
if (segment->repeat >= 0) {
end_time = segment->start + (segment->repeat + 1) * segment->duration;
} else {
end_time =
gst_mpdparser_get_segment_end_time (client, stream->segments,
segment, index);
}
if (segment->start > ts)
break;
/* avoid downloading another fragment just for 1ns in reverse mode */
if (forward)
in_segment = ts < end_time;
else
in_segment = ts <= end_time;
if (segment->repeat >= 0) {
end_time = segment->start + (segment->repeat + 1) * segment->duration;
} else {
end_time =
gst_mpdparser_get_segment_end_time (client, stream->segments,
segment, index);
}
if (in_segment) {
selectedChunk = segment;
repeat_index = (ts - segment->start) / segment->duration;
/* avoid downloading another fragment just for 1ns in reverse mode */
if (forward)
in_segment = ts < end_time;
else
in_segment = ts <= end_time;
/* At the end of a segment in reverse mode, start from the previous fragment */
if (!forward && repeat_index > 0
&& ((ts - segment->start) % segment->duration == 0))
repeat_index--;
if (in_segment) {
selectedChunk = segment;
repeat_index = (ts - segment->start) / segment->duration;
if ((flags & GST_SEEK_FLAG_SNAP_NEAREST) ==
GST_SEEK_FLAG_SNAP_NEAREST) {
/* FIXME implement this */
} else if ((forward && flags & GST_SEEK_FLAG_SNAP_AFTER) ||
(!forward && flags & GST_SEEK_FLAG_SNAP_BEFORE)) {
/* At the end of a segment in reverse mode, start from the previous fragment */
if (!forward && repeat_index > 0
&& ((ts - segment->start) % segment->duration == 0))
repeat_index--;
if (repeat_index + 1 < segment->repeat) {
repeat_index++;
if ((flags & GST_SEEK_FLAG_SNAP_NEAREST) == GST_SEEK_FLAG_SNAP_NEAREST) {
/* FIXME implement this */
} else if ((forward && flags & GST_SEEK_FLAG_SNAP_AFTER) ||
(!forward && flags & GST_SEEK_FLAG_SNAP_BEFORE)) {
if (repeat_index + 1 < segment->repeat) {
repeat_index++;
} else {
repeat_index = 0;
if (index + 1 >= stream->segments->len) {
selectedChunk = NULL;
} else {
repeat_index = 0;
if (index + 1 >= stream->segments->len) {
selectedChunk = NULL;
} else {
selectedChunk = g_ptr_array_index (stream->segments, ++index);
}
selectedChunk = g_ptr_array_index (stream->segments, ++index);
}
}
break;
}
break;
}
}