diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c
old mode 100644
new mode 100755
index 3a5ed69..5c533cc
--- a/libavformat/mpegts.c
+++ b/libavformat/mpegts.c
@@ -1509,7 +1509,11 @@ static void pmt_cb(MpegTSFilter *filter, const uint8_t *section, int section_len
 
         if (!st)
             goto out;
-
+#if CONFIG_AV_PID_NUMBER_PASSTHRU
+        // note down the pid numbers inorder to pass-thru to the muxer
+        ts->pids_num[st->index] = pid;
+        ts->total_streams++;
+#endif
         if (pes && !pes->stream_type)
             mpegts_set_stream_info(st, pes, stream_type, prog_reg_desc);
 
@@ -1949,6 +1953,12 @@ static int mpegts_read_header(AVFormatContext *s)
         mpegts_open_section_filter(ts, PAT_PID, pat_cb, ts, 1);
 
         handle_packets(ts, s->probesize / ts->raw_packet_size);
+#if CONFIG_AV_PID_NUMBER_PASSTHRU
+        // transfer pid numbers from TS format to input format context
+        s->total_streams = ts->total_streams;
+        for(int i=0;i<s->total_streams; i++) 
+           s->pids_num[i] = ts->pids_num[i];
+#endif
         /* if could not find service, enable auto_guess */
 
         ts->auto_guess = 1;