fixes for playqueue-contents

src/httpd_dacp.c

@@ -1146,6 +1146,11 @@ playqueuecontents_add_source(struct evbuffer *songlist, uint32_t source_id, int
     }
 
   mfi = db_file_fetch_byid(source_id);
+  if (!mfi)
+    {
+      DPRINTF(E_LOG, L_DACP, "Could not fetch file id %d\n", source_id);
+      return -1;
+    }
   dmap_add_container(song, "ceQs", 16);
   dmap_add_raw_uint32(song, 1); /* Database */
   dmap_add_raw_uint32(song, plid);
@@ -1167,7 +1172,6 @@ playqueuecontents_add_source(struct evbuffer *songlist, uint32_t source_id, int
 
   ret = evbuffer_add_buffer(songlist, song);
   evbuffer_free(song);
-  if (mfi)
   free_mfi(mfi, 0);
 
   if (ret < 0)
@@ -1246,10 +1250,9 @@ static void dacp_reply_playqueuecontents(struct evhttp_request *req, struct evbu
       {
         start_index = (history->start_index + history->count - abs(span)) % MAX_HISTORY_COUNT;
       }
-      for (i = 0; i < history->count && i < abs(span); i++)
+      for (n = 0; n < history->count && n < abs(span); n++)
       {
-        n++;
+        ret = playqueuecontents_add_source(songlist, history->id[(start_index + n) % MAX_HISTORY_COUNT], (n + 1), status.plid);
-        ret = playqueuecontents_add_source(songlist, history->buffer[(start_index + i) % MAX_HISTORY_COUNT], (n + i + 1), status.plid);
         if (ret < 0)
         {
           DPRINTF(E_LOG, L_DACP, "Could not add song to songlist for playqueue-contents\n");
@@ -1286,6 +1289,7 @@ static void dacp_reply_playqueuecontents(struct evhttp_request *req, struct evbu
     }
   }
 
+  /* Playlists are hist, curr and main. */
   playlists = evbuffer_new();
   if (!playlists)
     {

src/player.c

@@ -1448,11 +1448,23 @@ player_history_get(void)
 static void
 history_add(uint32_t id)
 {
-  unsigned int next_index = (history->start_index + history->count) % MAX_HISTORY_COUNT;
+  unsigned int cur_index;
+  unsigned int next_index;
+  
+  /* Check if the current song is already the last in the history to avoid duplicates */
+  cur_index = (history->start_index + history->count - 1) % MAX_HISTORY_COUNT;
+  if (id == history->id[cur_index])
+    {
+      DPRINTF(E_LOG, L_PLAYER, "Current playing/streaming song already in history\n");
+      return;
+    }
+
+  /* Calculate the next index and update the start-index and count for the id-buffer */
+  next_index = (history->start_index + history->count) % MAX_HISTORY_COUNT;
   if (next_index == history->start_index && history->count > 0)
     history->start_index = (history->start_index + 1) % MAX_HISTORY_COUNT;
 
-  history->buffer[next_index] = id;
+  history->id[next_index] = id;
 
   if (history->count < MAX_HISTORY_COUNT)
     history->count++;
@@ -2623,11 +2635,13 @@ playback_prev_bh(struct player_command *cmd)
 
   if (cur_playing)
     {
+      if (cur_playing->end > cur_playing->stream_start)
         history_add(cur_playing->id);
       source_stop(cur_playing);
     }
   else if (cur_streaming)
     {
+      if (cur_streaming->end > cur_streaming->stream_start)
         history_add(cur_streaming->id);
       source_stop(cur_streaming);
     }
@@ -2661,11 +2675,13 @@ playback_next_bh(struct player_command *cmd)
 
   if (cur_playing)
     {
+      if (cur_playing->end > cur_playing->stream_start)
         history_add(cur_playing->id);
       source_stop(cur_playing);
     }
   else if (cur_streaming)
     {
+      if (cur_streaming->end > cur_streaming->stream_start)
         history_add(cur_streaming->id);
       source_stop(cur_streaming);
     }

src/player.h

@@ -96,7 +96,7 @@ struct player_history
   unsigned int count;
 
   /* Circular buffer of song ids previously played by forked-daapd */
-  uint32_t buffer[MAX_HISTORY_COUNT];
+  uint32_t id[MAX_HISTORY_COUNT];
 };