@@ -, +, @@ 
---
 libavcodec/dtsdec.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)
--- a/libavcodec/dtsdec.c	
+++ a/libavcodec/dtsdec.c	
@@ -36,6 +36,7 @@ typedef struct DTSContext {
     uint8_t buf[BUFFER_SIZE];
     uint8_t *bufptr;
     uint8_t *bufpos;
+    int flags;
 } DTSContext;
 
 static inline int16_t
@@ -201,7 +202,7 @@ dts_decode_frame(AVCodecContext * avctx, void *data, int *data_size,
         if(s->bufpos != s->buf + HEADER_SIZE)
             break;
 
-        length = dts_syncinfo(s->state, s->buf, &flags, &sample_rate,
+        length = dts_syncinfo(s->state, s->buf, &s->flags, &sample_rate,
                               &bit_rate, &frame_length);
         if(!length) {
             av_log(NULL, AV_LOG_INFO, "skip\n");
@@ -215,7 +216,7 @@ dts_decode_frame(AVCodecContext * avctx, void *data, int *data_size,
     level = CONVERT_LEVEL;
     bias = CONVERT_BIAS;
 
-    flags |= DTS_ADJUST_LEVEL;
+    flags = s->flags | DTS_ADJUST_LEVEL;
     if(dts_frame(s->state, s->buf, &flags, &level, bias)) {
         av_log(avctx, AV_LOG_ERROR, "dts_frame() failed\n");
         goto end;
--