modules/codec/cvdsub.c

@@ -243,6 +243,7 @@ static block_t *Reassemble( decoder_t *p_dec, block_t *p_block )
     if( p_sys->i_state == SUBTITLE_BLOCK_EMPTY && p_block->i_pts == VLC_TICK_INVALID )
     {
         msg_Warn( p_dec, "first packet expected but no PTS present");
+        block_Release( p_block );
         return NULL;
     }
 

modules/codec/svcdsub.c

@@ -177,6 +177,7 @@ static int Decode( decoder_t *p_dec, block_t *p_block )
 
     /* Parse and decode */
     subpicture_t *p_spu = DecodePacket( p_dec, p_block );
+    block_Release( p_block );
     if( p_spu != NULL )
         decoder_QueueSub( p_dec, p_spu );
     return VLCDEC_SUCCESS;

modules/codec/webvtt/subsvtt.c

@@ -1623,6 +1623,8 @@ static void ChainCueSegments( const webvtt_dom_cue_t *p_cue, text_segment_t *p_n
         }
 
         *pp_append = p_new;
+        while( *pp_append )
+            pp_append = &((*pp_append)->p_next);
 
         if( p_cue->settings.vertical == WEBVTT_ALIGN_LEFT )
         {