decoder: cosmetic changes

src/input/decoder.c

@@ -1879,20 +1879,23 @@ void input_DecoderDecode( decoder_t *p_dec, block_t *p_block, bool b_do_pace )
 bool input_DecoderIsEmpty( decoder_t * p_dec )
 {
     decoder_owner_sys_t *p_owner = p_dec->p_owner;
+
     assert( !p_owner->b_waiting );
 
-    bool b_empty = block_FifoCount( p_dec->p_owner->p_fifo ) <= 0;
+    if( block_FifoCount( p_dec->p_owner->p_fifo ) > 0 )
+        return false;
+
+    bool b_empty;
+
+    vlc_mutex_lock( &p_owner->lock );
+    if( p_owner->fmt.i_cat == VIDEO_ES && p_owner->p_vout != NULL )
+        b_empty = vout_IsEmpty( p_owner->p_vout );
+    else if( p_owner->fmt.i_cat == AUDIO_ES && p_owner->p_aout != NULL )
+        b_empty = aout_DecIsEmpty( p_owner->p_aout );
+    else
+        b_empty = true; /* TODO subtitles support */
+    vlc_mutex_unlock( &p_owner->lock );
 
-    if( b_empty )
-    {
-        vlc_mutex_lock( &p_owner->lock );
-        /* TODO subtitles support */
-        if( p_owner->fmt.i_cat == VIDEO_ES && p_owner->p_vout )
-            b_empty = vout_IsEmpty( p_owner->p_vout );
-        else if( p_owner->fmt.i_cat == AUDIO_ES && p_owner->p_aout )
-            b_empty = aout_DecIsEmpty( p_owner->p_aout );
-        vlc_mutex_unlock( &p_owner->lock );
-    }
     return b_empty;
 }