avcodec/parser: put lost comments back

Found-by: ubitux
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/parser.c

@@ -104,8 +104,10 @@ void ff_fetch_timestamp(AVCodecParserContext *s, int off, int remove)
     for (i = 0; i < AV_PARSER_PTS_NB; i++) {
         if (s->cur_offset + off >= s->cur_frame_offset[i] &&
             (s->frame_offset < s->cur_frame_offset[i] ||
-             (!s->frame_offset && !s->next_frame_offset)) &&
-            s->cur_frame_end[i]) {
+             (!s->frame_offset && !s->next_frame_offset)) && // first field/frame
+            // check disabled since MPEG-TS does not send complete PES packets
+            /*s->next_frame_offset + off <*/  s->cur_frame_end[i]){
+
             s->dts    = s->cur_frame_dts[i];
             s->pts    = s->cur_frame_pts[i];
             s->pos    = s->cur_frame_pos[i];