Revert "stream_filter/httplive.c: seeking in segments not downloaded yet. (WIP)"

This reverts commit ca6d12b6.

Conflicts:

	modules/stream_filter/httplive.c

modules/stream_filter/httplive.c

@@ -947,7 +947,7 @@ static int Prefetch(stream_t *s, int *current)
 {
     stream_sys_t *p_sys = s->p_sys;
 
-    hls_stream_t *hls = hls_Get(p_sys->hls_stream, current);
+    hls_stream_t *hls = hls_Get(p_sys->hls_stream, *current);
     if (hls == NULL)
         return VLC_EGENERIC;
 
@@ -1441,28 +1441,19 @@ static int segment_Seek(stream_t *s, uint64_t pos)
     uint64_t length = 0;
     bool b_found = false;
 
-    vlc_mutex_lock(&hls->lock);
     int count = vlc_array_count(hls->segments);
-    vlc_mutex_unlock(&hls->lock);
-
-    for (int n = 0; n < count && !b_found; n++)
+    for (int n = 0; n < count; n++)
     {
         /* FIXME: Seeking in segments not dowloaded is not supported. */
-        vlc_mutex_lock(&hls->lock);
         if (n >= p_sys->thread->segment)
         {
             msg_Err(s, "seeking in segment not downloaded yet.");
-            vlc_mutex_unlock(&hls->lock);
             return VLC_EGENERIC;
         }
 
         segment_t *segment = vlc_array_item_at_index(hls->segments, n);
         if (segment == NULL)
-        {
-            vlc_mutex_unlock(&hls->lock);
             return VLC_EGENERIC;
-        }
-        vlc_mutex_unlock(&hls->lock);
 
         vlc_mutex_lock(&segment->lock);
         length += segment->size;