@@ -2917,12 +2917,12 @@ static int compute_pkt_fields2(AVFormatContext *s, AVStream *st, AVPacket *pkt){

     if(st->cur_dts && st->cur_dts != AV_NOPTS_VALUE && st->cur_dts >= pkt->dts){

         av_log(s, AV_LOG_ERROR,

-               "st:%d error, non monotone timestamps %"PRId64" >= %"PRId64"\n",

+               "Application provided invalid, non monotonically increasing dts to muxer in stream %d: %"PRId64" >= %"PRId64"\n",

                st->index, st->cur_dts, pkt->dts);

         return -1;

     }

     if(pkt->dts != AV_NOPTS_VALUE && pkt->pts != AV_NOPTS_VALUE && pkt->pts < pkt->dts){

-        av_log(s, AV_LOG_ERROR, "st:%d error, pts < dts\n", st->index);

+        av_log(s, AV_LOG_ERROR, "pts < dts in stream %d\n", st->index);

         return -1;

     }