diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index 767356a439..2f41f7263b 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -726,6 +726,7 @@ typedef struct AVFormatContext {
 #define AVFMT_FLAG_NOFILLIN     0x0010 ///< Do not infer any values from other values, just return what is stored in the container
 #define AVFMT_FLAG_NOPARSE      0x0020 ///< Do not use AVParsers, you also must set AVFMT_FLAG_NOFILLIN as the fillin code works on frames and no parsing -> no frames. Also seeking to frames can not work if parsing to find frame boundaries has been disabled
 #define AVFMT_FLAG_RTP_HINT     0x0040 ///< Add RTP hinting to the output file
+#define AVFMT_FLAG_SORT_DTS    0x10000 ///< try to interleave outputted packets by dts (using this flag can slow demuxing down)
 
     int loop_input;
 
diff --git a/libavformat/avidec.c b/libavformat/avidec.c
index 9d657e0db6..77d068658f 100644
--- a/libavformat/avidec.c
+++ b/libavformat/avidec.c
@@ -726,7 +726,7 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
     if(!avi->index_loaded && pb->seekable)
         avi_load_index(s);
     avi->index_loaded = 1;
-    avi->non_interleaved |= guess_ni_flag(s);
+    avi->non_interleaved |= guess_ni_flag(s) | (s->flags & AVFMT_FLAG_SORT_DTS);
     for(i=0; i<s->nb_streams; i++){
         AVStream *st = s->streams[i];
         if(st->nb_index_entries)
diff --git a/libavformat/options.c b/libavformat/options.c
index 214c62f9a7..0a87f2b12c 100644
--- a/libavformat/options.c
+++ b/libavformat/options.c
@@ -50,6 +50,7 @@ static const AVOption options[]={
 {"noparse", "disable AVParsers, this needs nofillin too", 0, FF_OPT_TYPE_CONST, AVFMT_FLAG_NOPARSE, INT_MIN, INT_MAX, D, "fflags"},
 {"igndts", "ignore dts", 0, FF_OPT_TYPE_CONST, AVFMT_FLAG_IGNDTS, INT_MIN, INT_MAX, D, "fflags"},
 {"rtphint", "add rtp hinting", 0, FF_OPT_TYPE_CONST, AVFMT_FLAG_RTP_HINT, INT_MIN, INT_MAX, E, "fflags"},
+{"sortdts", "try to interleave outputted packets by dts", 0, FF_OPT_TYPE_CONST, AVFMT_FLAG_SORT_DTS, INT_MIN, INT_MAX, D, "fflags"},
 {"analyzeduration", "how many microseconds are analyzed to estimate duration", OFFSET(max_analyze_duration), FF_OPT_TYPE_INT, 5*AV_TIME_BASE, 0, INT_MAX, D},
 {"cryptokey", "decryption key", OFFSET(key), FF_OPT_TYPE_BINARY, 0, 0, 0, D},
 {"indexmem", "max memory used for timestamp index (per stream)", OFFSET(max_index_size), FF_OPT_TYPE_INT, 1<<20, 0, INT_MAX, D},