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dashdemux: Implement lazy-loading of external periods
https://bugzilla.gnome.org/show_bug.cgi?id=752230
This commit is contained in:
Sebastian Dröge
parent
b70dab8f27
commit
93d85bd361
4 changed files with 121 additions and 30 deletions
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@ -736,7 +736,8 @@ gst_dash_demux_process_manifest (GstAdaptiveDemux * demux, GstBuffer * buf)
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if (gst_buffer_map (buf, &mapinfo, GST_MAP_READ)) {
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manifest = (gchar *) mapinfo.data;
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if (gst_mpd_parse (dashdemux->client, manifest, mapinfo.size)) {
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if (gst_mpd_client_setup_media_presentation (dashdemux->client)) {
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if (gst_mpd_client_setup_media_presentation (dashdemux->client, 0, 0,
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NULL)) {
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ret = TRUE;
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} else {
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GST_ELEMENT_ERROR (demux, STREAM, DECODE,
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@ -1208,6 +1209,10 @@ gst_dash_demux_seek (GstAdaptiveDemux * demux, GstEvent * seek)
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target_pos = (GstClockTime) demux->segment.stop;
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/* select the requested Period in the Media Presentation */
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if (!gst_mpd_client_setup_media_presentation (dashdemux->client, target_pos,
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-1, NULL))
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return FALSE;
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current_period = 0;
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for (list = g_list_first (dashdemux->client->periods); list;
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list = g_list_next (list)) {
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@ -1295,7 +1300,8 @@ gst_dash_demux_update_manifest_data (GstAdaptiveDemux * demux,
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period_idx = gst_mpd_client_get_period_index (dashdemux->client);
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/* setup video, audio and subtitle streams, starting from current Period */
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if (!gst_mpd_client_setup_media_presentation (new_client)) {
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if (!gst_mpd_client_setup_media_presentation (new_client, -1,
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(period_id ? -1 : period_idx), period_id)) {
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/* TODO */
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}
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@ -2978,6 +2978,9 @@ gst_mpd_client_get_period_index_at_time (GstMpdClient * client,
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if (time_offset < 0)
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return 0;
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if (!gst_mpd_client_setup_media_presentation (client, time_offset, -1, NULL))
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return 0;
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for (idx = 0, iter = client->periods; iter; idx++, iter = g_list_next (iter)) {
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stream_period = iter->data;
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if (stream_period->start <= time_offset
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@ -3893,12 +3896,9 @@ gst_mpd_client_fetch_external_period (GstMpdClient * client,
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return new_periods;
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}
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/* TODO: Implement xlink actuation onRequest properly. Currently we download
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* each external MPD immediately when iterating over the periods. We should
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* do this only when actually switching to this period.
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*/
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gboolean
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gst_mpd_client_setup_media_presentation (GstMpdClient * client)
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gst_mpd_client_setup_media_presentation (GstMpdClient * client,
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GstClockTime time, gint period_idx, const gchar * period_id)
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{
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GstStreamPeriod *stream_period;
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GstClockTime start, duration;
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@ -3909,8 +3909,30 @@ gst_mpd_client_setup_media_presentation (GstMpdClient * client)
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g_return_val_if_fail (client != NULL, FALSE);
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g_return_val_if_fail (client->mpd_node != NULL, FALSE);
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/* Check if we set up the media presentation far enough already */
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for (list = client->periods; list; list = list->next) {
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GstStreamPeriod *stream_period = list->data;
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if ((time != GST_CLOCK_TIME_NONE
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&& stream_period->duration != GST_CLOCK_TIME_NONE
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&& stream_period->start + stream_period->duration >= time)
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|| (time != GST_CLOCK_TIME_NONE && stream_period->start >= time))
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return TRUE;
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if (period_idx != -1 && stream_period->number >= period_idx)
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return TRUE;
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if (period_id != NULL && stream_period->period->id != NULL
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&& strcmp (stream_period->period->id, period_id) == 0)
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return TRUE;
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}
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GST_DEBUG ("Building the list of Periods in the Media Presentation");
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/* clean the old period list, if any */
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/* TODO: In theory we could reuse the ones we have so far but that
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* seems more complicated than the overhead caused here
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*/
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if (client->periods) {
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g_list_foreach (client->periods,
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(GFunc) gst_mpdparser_free_stream_period, NULL);
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@ -4076,10 +4098,24 @@ gst_mpd_client_setup_media_presentation (GstMpdClient * client)
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GST_LOG (" - added Period %d start=%" GST_TIME_FORMAT " duration=%"
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GST_TIME_FORMAT, idx, GST_TIME_ARGS (start), GST_TIME_ARGS (duration));
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if ((time != GST_CLOCK_TIME_NONE
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&& stream_period->duration != GST_CLOCK_TIME_NONE
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&& stream_period->start + stream_period->duration >= time)
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|| (time != GST_CLOCK_TIME_NONE && stream_period->start >= time))
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break;
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if (period_idx != -1 && stream_period->number >= period_idx)
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break;
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if (period_id != NULL && stream_period->period->id != NULL
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&& strcmp (stream_period->period->id, period_id) == 0)
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break;
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list = list->next;
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}
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GST_DEBUG ("Found a total of %d valid Periods in the Media Presentation",
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GST_DEBUG
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("Found a total of %d valid Periods in the Media Presentation up to this point",
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idx);
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return ret;
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@ -5052,6 +5088,10 @@ gst_mpd_client_set_period_id (GstMpdClient * client, const gchar * period_id)
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g_return_val_if_fail (client->periods != NULL, FALSE);
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g_return_val_if_fail (period_id != NULL, FALSE);
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if (!gst_mpd_client_setup_media_presentation (client, GST_CLOCK_TIME_NONE, -1,
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period_id))
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return FALSE;
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for (period_idx = 0, iter = client->periods; iter;
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period_idx++, iter = g_list_next (iter)) {
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next_stream_period = iter->data;
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@ -5076,6 +5116,9 @@ gst_mpd_client_set_period_index (GstMpdClient * client, guint period_idx)
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g_return_val_if_fail (client != NULL, FALSE);
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g_return_val_if_fail (client->periods != NULL, FALSE);
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if (!gst_mpd_client_setup_media_presentation (client, -1, period_idx, NULL))
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return FALSE;
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next_stream_period = g_list_nth_data (client->periods, period_idx);
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if (next_stream_period != NULL) {
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client->period_idx = period_idx;
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@ -531,7 +531,7 @@ void gst_mpd_client_set_uri_downloader (GstMpdClient * client, GstUriDownloader
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gboolean gst_mpd_parse (GstMpdClient *client, const gchar *data, gint size);
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/* Streaming management */
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gboolean gst_mpd_client_setup_media_presentation (GstMpdClient *client);
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gboolean gst_mpd_client_setup_media_presentation (GstMpdClient *client, GstClockTime time, gint period_index, const gchar *period_id);
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gboolean gst_mpd_client_setup_streaming (GstMpdClient * client, GstAdaptationSetNode * adapt_set);
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gboolean gst_mpd_client_setup_representation (GstMpdClient *client, GstActiveStream *stream, GstRepresentationNode *representation);
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GstClockTime gst_mpd_client_get_next_fragment_duration (GstMpdClient * client, GstActiveStream * stream);
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@ -2567,7 +2567,9 @@ GST_START_TEST (dash_mpdparser_various_duration_formats)
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ret = gst_mpd_parse (mpdclient, xml, (gint) strlen (xml));
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assert_equals_int (ret, TRUE);
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ret = gst_mpd_client_setup_media_presentation (mpdclient);
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ret =
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gst_mpd_client_setup_media_presentation (mpdclient, GST_CLOCK_TIME_NONE,
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-1, NULL);
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assert_equals_int (ret, TRUE);
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periodNode =
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@ -2643,7 +2645,9 @@ GST_START_TEST (dash_mpdparser_setup_media_presentation)
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assert_equals_int (ret, TRUE);
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/* process the xml data */
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ret = gst_mpd_client_setup_media_presentation (mpdclient);
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ret =
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gst_mpd_client_setup_media_presentation (mpdclient, GST_CLOCK_TIME_NONE,
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-1, NULL);
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assert_equals_int (ret, TRUE);
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gst_mpd_client_free (mpdclient);
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@ -2678,7 +2682,9 @@ GST_START_TEST (dash_mpdparser_setup_streaming)
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assert_equals_int (ret, TRUE);
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/* process the xml data */
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ret = gst_mpd_client_setup_media_presentation (mpdclient);
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ret =
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gst_mpd_client_setup_media_presentation (mpdclient, GST_CLOCK_TIME_NONE,
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-1, NULL);
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assert_equals_int (ret, TRUE);
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/* get the first adaptation set of the first period */
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@ -2725,7 +2731,9 @@ GST_START_TEST (dash_mpdparser_period_selection)
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fail_unless (mpdclient->periods == NULL);
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/* process the xml data */
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ret = gst_mpd_client_setup_media_presentation (mpdclient);
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ret =
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gst_mpd_client_setup_media_presentation (mpdclient, GST_CLOCK_TIME_NONE,
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-1, NULL);
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assert_equals_int (ret, TRUE);
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/* check the periods */
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@ -2791,7 +2799,9 @@ GST_START_TEST (dash_mpdparser_get_period_at_time)
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assert_equals_int (ret, TRUE);
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/* process the xml data */
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ret = gst_mpd_client_setup_media_presentation (mpdclient);
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ret =
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gst_mpd_client_setup_media_presentation (mpdclient, GST_CLOCK_TIME_NONE,
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-1, NULL);
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assert_equals_int (ret, TRUE);
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/* request period for a time before availabilityStartTime, expect period index 0 */
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@ -2858,7 +2868,9 @@ GST_START_TEST (dash_mpdparser_adaptationSet_handling)
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assert_equals_int (ret, TRUE);
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/* process the xml data */
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ret = gst_mpd_client_setup_media_presentation (mpdclient);
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ret =
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gst_mpd_client_setup_media_presentation (mpdclient, GST_CLOCK_TIME_NONE,
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-1, NULL);
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assert_equals_int (ret, TRUE);
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/* period0 has 1 adaptation set */
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@ -2920,7 +2932,9 @@ GST_START_TEST (dash_mpdparser_representation_selection)
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assert_equals_int (ret, TRUE);
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/* process the xml data */
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ret = gst_mpd_client_setup_media_presentation (mpdclient);
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ret =
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gst_mpd_client_setup_media_presentation (mpdclient, GST_CLOCK_TIME_NONE,
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-1, NULL);
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assert_equals_int (ret, TRUE);
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adaptationSets = gst_mpd_client_get_adaptation_sets (mpdclient);
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@ -2993,7 +3007,9 @@ GST_START_TEST (dash_mpdparser_activeStream_selection)
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assert_equals_int (ret, TRUE);
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/* process the xml data */
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ret = gst_mpd_client_setup_media_presentation (mpdclient);
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ret =
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gst_mpd_client_setup_media_presentation (mpdclient, GST_CLOCK_TIME_NONE,
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-1, NULL);
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assert_equals_int (ret, TRUE);
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/* get the list of adaptation sets of the first period */
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@ -3093,7 +3109,9 @@ GST_START_TEST (dash_mpdparser_activeStream_parameters)
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assert_equals_int (ret, TRUE);
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/* process the xml data */
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ret = gst_mpd_client_setup_media_presentation (mpdclient);
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ret =
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gst_mpd_client_setup_media_presentation (mpdclient, GST_CLOCK_TIME_NONE,
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-1, NULL);
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assert_equals_int (ret, TRUE);
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/* get the list of adaptation sets of the first period */
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@ -3177,7 +3195,9 @@ GST_START_TEST (dash_mpdparser_get_audio_languages)
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assert_equals_int (ret, TRUE);
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/* process the xml data */
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ret = gst_mpd_client_setup_media_presentation (mpdclient);
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ret =
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gst_mpd_client_setup_media_presentation (mpdclient, GST_CLOCK_TIME_NONE,
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-1, NULL);
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assert_equals_int (ret, TRUE);
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/* get the list of adaptation sets of the first period */
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@ -3226,7 +3246,9 @@ setup_mpd_client (const gchar * xml)
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assert_equals_int (ret, TRUE);
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/* process the xml data */
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ret = gst_mpd_client_setup_media_presentation (mpdclient);
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ret =
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gst_mpd_client_setup_media_presentation (mpdclient, GST_CLOCK_TIME_NONE,
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-1, NULL);
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assert_equals_int (ret, TRUE);
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/* get the list of adaptation sets of the first period */
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@ -3451,7 +3473,9 @@ GST_START_TEST (dash_mpdparser_get_streamPresentationOffset)
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assert_equals_int (ret, TRUE);
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/* process the xml data */
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ret = gst_mpd_client_setup_media_presentation (mpdclient);
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ret =
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gst_mpd_client_setup_media_presentation (mpdclient, GST_CLOCK_TIME_NONE,
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-1, NULL);
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assert_equals_int (ret, TRUE);
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/* get the list of adaptation sets of the first period */
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@ -3523,7 +3547,9 @@ GST_START_TEST (dash_mpdparser_segments)
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assert_equals_int (ret, TRUE);
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/* process the xml data */
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ret = gst_mpd_client_setup_media_presentation (mpdclient);
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ret =
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gst_mpd_client_setup_media_presentation (mpdclient, GST_CLOCK_TIME_NONE,
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-1, NULL);
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assert_equals_int (ret, TRUE);
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/* get the list of adaptation sets of the first period */
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@ -3664,7 +3690,9 @@ GST_START_TEST (dash_mpdparser_headers)
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assert_equals_int (ret, TRUE);
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/* process the xml data */
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ret = gst_mpd_client_setup_media_presentation (mpdclient);
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ret =
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gst_mpd_client_setup_media_presentation (mpdclient, GST_CLOCK_TIME_NONE,
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-1, NULL);
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assert_equals_int (ret, TRUE);
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/* get the list of adaptation sets of the first period */
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@ -3738,7 +3766,9 @@ GST_START_TEST (dash_mpdparser_fragments)
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assert_equals_int (ret, TRUE);
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/* process the xml data */
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ret = gst_mpd_client_setup_media_presentation (mpdclient);
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ret =
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gst_mpd_client_setup_media_presentation (mpdclient, GST_CLOCK_TIME_NONE,
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-1, NULL);
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assert_equals_int (ret, TRUE);
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/* get the list of adaptation sets of the first period */
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@ -3885,7 +3915,9 @@ GST_START_TEST (dash_mpdparser_inherited_segmentURL)
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assert_equals_int (ret, TRUE);
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/* process the xml data */
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ret = gst_mpd_client_setup_media_presentation (mpdclient);
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ret =
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gst_mpd_client_setup_media_presentation (mpdclient, GST_CLOCK_TIME_NONE,
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-1, NULL);
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assert_equals_int (ret, TRUE);
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/* get the list of adaptation sets of the first period */
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@ -3990,7 +4022,9 @@ GST_START_TEST (dash_mpdparser_segment_list)
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assert_equals_int (ret, TRUE);
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/* process the xml data */
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ret = gst_mpd_client_setup_media_presentation (mpdclient);
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ret =
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gst_mpd_client_setup_media_presentation (mpdclient, GST_CLOCK_TIME_NONE,
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-1, NULL);
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assert_equals_int (ret, TRUE);
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/* get the list of adaptation sets of the first period */
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@ -4066,7 +4100,9 @@ GST_START_TEST (dash_mpdparser_segment_template)
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assert_equals_int (ret, TRUE);
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/* process the xml data */
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ret = gst_mpd_client_setup_media_presentation (mpdclient);
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ret =
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gst_mpd_client_setup_media_presentation (mpdclient, GST_CLOCK_TIME_NONE,
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-1, NULL);
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assert_equals_int (ret, TRUE);
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/* get the list of adaptation sets of the first period */
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@ -4167,7 +4203,9 @@ GST_START_TEST (dash_mpdparser_segment_timeline)
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assert_equals_int (ret, TRUE);
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/* process the xml data */
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ret = gst_mpd_client_setup_media_presentation (mpdclient);
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ret =
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gst_mpd_client_setup_media_presentation (mpdclient, GST_CLOCK_TIME_NONE,
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-1, NULL);
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assert_equals_int (ret, TRUE);
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/* get the list of adaptation sets of the first period */
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@ -4343,7 +4381,9 @@ GST_START_TEST (dash_mpdparser_wrong_period_duration_inferred_from_next_period)
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fail_unless (mpdclient->periods == NULL);
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/* process the xml data */
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ret = gst_mpd_client_setup_media_presentation (mpdclient);
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ret =
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gst_mpd_client_setup_media_presentation (mpdclient, GST_CLOCK_TIME_NONE,
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-1, NULL);
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assert_equals_int (ret, TRUE);
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/* Period0 should be present */
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@ -4388,7 +4428,9 @@ GST_START_TEST
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/* process the xml data
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* should fail due to wrong duration in Period0 (start > mediaPresentationDuration)
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*/
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ret = gst_mpd_client_setup_media_presentation (mpdclient);
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ret =
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gst_mpd_client_setup_media_presentation (mpdclient, GST_CLOCK_TIME_NONE,
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-1, NULL);
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assert_equals_int (ret, FALSE);
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gst_mpd_client_free (mpdclient);
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