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hlsdemux: make hlsdemux lock/unlock the m3u8 client when it accesses it
This commit is contained in:
Youness Alaoui
Sebastian Dröge
parent
6133608789
commit
5aa972eab2
1 changed files with 41 additions and 14 deletions
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@ -356,6 +356,7 @@ gst_hls_demux_src_event (GstPad * pad, GstEvent * event)
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" stop: %" GST_TIME_FORMAT, rate, GST_TIME_ARGS (start),
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GST_TIME_ARGS (stop));
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GST_M3U8_CLIENT_LOCK (demux->client);
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file = GST_M3U8_MEDIA_FILE (demux->client->current->files->data);
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current_sequence = file->sequence;
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current_pos = 0;
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@ -371,6 +372,7 @@ gst_hls_demux_src_event (GstPad * pad, GstEvent * event)
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}
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current_pos += file->duration;
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}
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GST_M3U8_CLIENT_UNLOCK (demux->client);
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if (walk == NULL) {
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GST_WARNING_OBJECT (demux, "Could not find seeked fragment");
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@ -401,10 +403,13 @@ gst_hls_demux_src_event (GstPad * pad, GstEvent * event)
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g_queue_clear (demux->queue);
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gst_adapter_clear (demux->download);
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GST_M3U8_CLIENT_LOCK (demux->client);
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GST_DEBUG_OBJECT (demux, "seeking to sequence %d", current_sequence);
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demux->client->sequence = current_sequence;
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demux->position = start;
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demux->need_segment = TRUE;
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GST_M3U8_CLIENT_UNLOCK (demux->client);
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if (flags & GST_SEEK_FLAG_FLUSH) {
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GST_DEBUG_OBJECT (demux, "sending flush stop");
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@ -522,7 +527,7 @@ gst_hls_demux_src_query (GstPad * pad, GstQuery * query)
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if (hlsdemux->client) {
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/* FIXME: Do we answer with the variant playlist, with the current
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* playlist or the the uri of the least downlowaded fragment? */
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gst_query_set_uri (query, hlsdemux->client->current->uri);
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gst_query_set_uri (query, gst_m3u8_client_get_uri (hlsdemux->client));
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ret = TRUE;
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}
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break;
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@ -1007,7 +1012,11 @@ gst_hls_demux_cache_fragments (GstHLSDemux * demux)
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/* If this playlist is a variant playlist, select the first one
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* and update it */
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if (gst_m3u8_client_has_variant_playlist (demux->client)) {
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GstM3U8 *child = demux->client->main->current_variant->data;
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GstM3U8 *child = NULL;
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GST_M3U8_CLIENT_LOCK (demux->client);
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child = demux->client->main->current_variant->data;
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GST_M3U8_CLIENT_UNLOCK (demux->client);
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gst_m3u8_client_set_current (demux->client, child);
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if (!gst_hls_demux_update_playlist (demux)) {
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GST_ERROR_OBJECT (demux, "Could not fetch the child playlist %s",
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@ -1019,11 +1028,13 @@ gst_hls_demux_cache_fragments (GstHLSDemux * demux)
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/* If it's a live source, set the sequence number to the end of the list
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* and substract the 'fragmets_cache' to start from the last fragment*/
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if (gst_m3u8_client_is_live (demux->client)) {
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GST_M3U8_CLIENT_LOCK (demux->client);
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demux->client->sequence += g_list_length (demux->client->current->files);
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if (demux->client->sequence >= demux->fragments_cache)
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demux->client->sequence -= demux->fragments_cache;
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else
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demux->client->sequence = 0;
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GST_M3U8_CLIENT_UNLOCK (demux->client);
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} else {
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GstClockTime duration = gst_m3u8_client_get_duration (demux->client);
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@ -1042,7 +1053,8 @@ gst_hls_demux_cache_fragments (GstHLSDemux * demux)
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100 * i / demux->fragments_cache));
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g_get_current_time (&demux->next_update);
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g_time_val_add (&demux->next_update,
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demux->client->current->targetduration * 1000000);
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gst_m3u8_client_get_target_duration (demux->client)
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/ GST_SECOND * G_USEC_PER_SEC);
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if (!gst_hls_demux_get_next_fragment (demux)) {
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if (!demux->cancelled)
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GST_ERROR_OBJECT (demux, "Error caching the first fragments");
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@ -1142,10 +1154,10 @@ gst_hls_demux_update_playlist (GstHLSDemux * demux)
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const guint8 *data;
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gchar *playlist;
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guint avail;
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const gchar *uri = gst_m3u8_client_get_current_uri (demux->client);
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GST_INFO_OBJECT (demux, "Updating the playlist %s",
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demux->client->current->uri);
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if (!gst_hls_demux_fetch_location (demux, demux->client->current->uri))
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GST_INFO_OBJECT (demux, "Updating the playlist %s", uri);
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if (!gst_hls_demux_fetch_location (demux, uri))
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return FALSE;
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avail = gst_adapter_available (demux->download);
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@ -1165,26 +1177,36 @@ gst_hls_demux_change_playlist (GstHLSDemux * demux, gboolean is_fast)
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{
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GList *list;
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GstStructure *s;
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gint new_bandwidth;
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GST_M3U8_CLIENT_LOCK (demux->client);
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if (is_fast)
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list = g_list_next (demux->client->main->current_variant);
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else
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list = g_list_previous (demux->client->main->current_variant);
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/* Don't do anything else if the playlist is the same */
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if (!list || list->data == demux->client->current)
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if (!list || list->data == demux->client->current) {
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GST_M3U8_CLIENT_UNLOCK (demux->client);
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return TRUE;
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}
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demux->client->main->current_variant = list;
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GST_M3U8_CLIENT_UNLOCK (demux->client);
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gst_m3u8_client_set_current (demux->client, list->data);
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GST_M3U8_CLIENT_LOCK (demux->client);
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new_bandwidth = demux->client->current->bandwidth;
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GST_M3U8_CLIENT_UNLOCK (demux->client);
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gst_hls_demux_update_playlist (demux);
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GST_INFO_OBJECT (demux, "Client is %s, switching to bitrate %d",
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is_fast ? "fast" : "slow", demux->client->current->bandwidth);
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is_fast ? "fast" : "slow", new_bandwidth);
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s = gst_structure_new ("playlist",
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"uri", G_TYPE_STRING, demux->client->current->uri,
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"bitrate", G_TYPE_INT, demux->client->current->bandwidth, NULL);
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"uri", G_TYPE_STRING, gst_m3u8_client_get_current_uri (demux->client),
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"bitrate", G_TYPE_INT, new_bandwidth, NULL);
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gst_element_post_message (GST_ELEMENT_CAST (demux),
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gst_message_new_element (GST_OBJECT_CAST (demux), s));
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@ -1215,7 +1237,8 @@ gst_hls_demux_schedule (GstHLSDemux * demux)
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/* schedule the next update using the target duration field of the
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* playlist */
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g_time_val_add (&demux->next_update,
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demux->client->current->targetduration * update_factor * 1000000);
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gst_m3u8_client_get_target_duration (demux->client)
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/ GST_SECOND * G_USEC_PER_SEC * update_factor);
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GST_DEBUG_OBJECT (demux, "Next update scheduled at %s",
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g_time_val_to_iso8601 (&demux->next_update));
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@ -1229,14 +1252,18 @@ gst_hls_demux_switch_playlist (GstHLSDemux * demux)
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gint64 diff, limit;
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g_get_current_time (&now);
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if (!demux->client->main->lists)
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GST_M3U8_CLIENT_LOCK (demux->client);
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if (!demux->client->main->lists) {
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GST_M3U8_CLIENT_UNLOCK (demux->client);
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return TRUE;
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}
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GST_M3U8_CLIENT_UNLOCK (demux->client);
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/* compare the time when the fragment was downloaded with the time when it was
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* scheduled */
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diff = (GST_TIMEVAL_TO_TIME (demux->next_update) - GST_TIMEVAL_TO_TIME (now));
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limit = demux->client->current->targetduration * GST_SECOND *
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demux->bitrate_switch_tol;
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limit = gst_m3u8_client_get_target_duration (demux->client)
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* demux->bitrate_switch_tol;
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GST_DEBUG ("diff:%s%" GST_TIME_FORMAT ", limit:%" GST_TIME_FORMAT,
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diff < 0 ? "-" : " ", GST_TIME_ARGS (ABS (diff)), GST_TIME_ARGS (limit));
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