demux: add --autocreate-playlist

player/loadfile.c

@@ -1041,6 +1041,17 @@ void prepare_playlist(struct MPContext *mpctx, struct playlist *pl)
     if (opts->playlist_pos >= 0)
         pl->current = playlist_entry_from_index(pl, opts->playlist_pos);
 
+    for (int i = 0; i < pl->num_entries; ++i) {
+        if (!pl->entries[i]->playlist_path)
+            continue;
+        // If playlist_path exists as an element in the playlist itself, it means
+        // playlist was autogenerated.
+        if (!strcmp(pl->entries[i]->filename, pl->entries[i]->playlist_path)) {
+            pl->current = pl->entries[i];
+            break;
+        }
+    }
+
     if (opts->shuffle)
         playlist_shuffle(pl);
 
@@ -1144,6 +1155,7 @@ static MP_THREAD_VOID open_demux_thread(void *ctx)
         .stream_flags = mpctx->open_url_flags,
         .stream_record = true,
         .is_top_level = true,
+        .has_playlist = mpctx->playlist->num_entries > 1,
     };
     struct demuxer *demux =
         demux_open_url(mpctx->open_url, &p, mpctx->open_cancel, mpctx->global);