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mpdparser: support SegmentTimeline syntax also for list-based media segment generation

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Gianluca Gennari 2012-10-19 18:45:30 +02:00 committed by Thiago Santos
parent 362b5e9446
commit fba69179e4
1 changed files with 54 additions and 18 deletions
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72
ext/dash/gstmpdparser.c
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@ -2481,9 +2481,9 @@ gboolean
gst_mpd_client_setup_representation (GstMpdClient * client, GstActiveStream *stream, GstRepresentationNode *representation)
{
GList *rep_list;
GstMediaSegment *media_segment = NULL;
GstClockTime PeriodStart = 0, PeriodEnd, start_time, duration;
guint i;
GstMediaSegment *last_media_segment;
guint i, start;
if (stream->cur_adapt_set == NULL) {
GST_WARNING ("No valid AdaptationSet node in the MPD file, aborting...");
@ -2550,17 +2550,53 @@ gst_mpd_client_setup_representation (GstMpdClient * client, GstActiveStream *str
/* build segment list */
i = stream->cur_segment_list->MultSegBaseType->startNumber;
start = 0;
start_time = 0;
duration = gst_mpd_client_get_target_duration (client);
while (SegmentURL) {
/* TODO: support SegmentTimeline */
if (!gst_mpd_client_add_media_segment (stream, SegmentURL->data, i, 0, start_time, duration)) {
return FALSE;
GST_LOG ("Building media segment list using a SegmentList node");
if (stream->cur_segment_list->MultSegBaseType->SegmentTimeline) {
GstSegmentTimelineNode *timeline;
GstSNode *S;
GList *list;
timeline = stream->cur_segment_list->MultSegBaseType->SegmentTimeline;
for (list = g_list_first (timeline->S); list; list = g_list_next (list)) {
guint j, timescale;
S = (GstSNode *) list->data;
GST_LOG ("Processing S node: d=%d r=%d t=%d", S->d, S->r, S->t);
duration = S->d * GST_SECOND;
timescale = stream->cur_segment_list->MultSegBaseType->SegBaseType->timescale;
if (timescale > 1)
duration /= timescale;
if (S->t > 0) {
start = S->t;
start_time = S->t * GST_SECOND;
if (timescale > 1)
start_time /= timescale;
}
for (j = 0; j <= S->r && SegmentURL != NULL; j++) {
if (!gst_mpd_client_add_media_segment (stream, SegmentURL->data, i, start, start_time, duration)) {
return FALSE;
}
i++;
start += S->d;
start_time += duration;
SegmentURL = g_list_next (SegmentURL);
}
}
} else {
duration = gst_mpd_client_get_target_duration (client);
while (SegmentURL) {
if (!gst_mpd_client_add_media_segment (stream, SegmentURL->data, i, 0, start_time, duration)) {
return FALSE;
}
i++;
start_time += duration;
SegmentURL = g_list_next (SegmentURL);
}
i++;
start_time += duration;
SegmentURL = g_list_next (SegmentURL);
}
}
} else {
@ -2578,13 +2614,12 @@ gst_mpd_client_setup_representation (GstMpdClient * client, GstActiveStream *str
return FALSE;
}
} else {
guint start;
/* build segment list */
i = stream->cur_seg_template->MultSegBaseType->startNumber;
start = 0;
start_time = 0;
GST_LOG ("using template %s", stream->cur_seg_template->media);
GST_LOG ("Building media segment list using this template: %s", stream->cur_seg_template->media);
if (stream->cur_seg_template->MultSegBaseType->SegmentTimeline) {
GstSegmentTimelineNode *timeline;
GstSNode *S;
@ -2630,13 +2665,14 @@ gst_mpd_client_setup_representation (GstMpdClient * client, GstActiveStream *str
}
}
if (media_segment) {
/* fix duration of last segment */
if (media_segment->start_time + media_segment->duration > PeriodEnd) {
media_segment->duration = PeriodEnd - media_segment->start_time;
GST_LOG ("Fixed duration of last segment: %" GST_TIME_FORMAT, GST_TIME_ARGS (media_segment->duration));
/* check duration of last segment */
last_media_segment = g_list_last (stream->segments)->data;
if (last_media_segment) {
if (last_media_segment->start_time + last_media_segment->duration > PeriodEnd) {
last_media_segment->duration = PeriodEnd - last_media_segment->start_time;
GST_LOG ("Fixed duration of last segment: %" GST_TIME_FORMAT, GST_TIME_ARGS (last_media_segment->duration));
}
GST_LOG ("Built a list of %d segments", media_segment->number);
GST_LOG ("Built a list of %d segments", last_media_segment->number);
}
g_free (stream->baseURL);