@@ -, +, @@ 
---
 libavcodec/dtsdec.c |   15 ++++++++-------
 1 files changed, 8 insertions(+), 7 deletions(-)
--- a/libavcodec/dtsdec.c	
+++ a/libavcodec/dtsdec.c	
@@ -36,6 +36,9 @@ typedef struct DTSContext {
     uint8_t buf[BUFFER_SIZE];
     uint8_t *bufptr;
     uint8_t *bufpos;
+    int flags;
+    int sample_rate;
+    int bit_rate;
 } DTSContext;
 
 static inline int16_t
@@ -173,10 +176,8 @@ dts_decode_frame(AVCodecContext * avctx, void *data, int *data_size,
     uint8_t *start = buff;
     uint8_t *end = buff + buff_size;
     int16_t *out_samples = data;
-    int sample_rate;
     int frame_length;
     int flags;
-    int bit_rate;
     int len;
     level_t level;
     sample_t bias;
@@ -201,8 +202,8 @@ 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,
-                              &bit_rate, &frame_length);
+        length = dts_syncinfo(s->state, s->buf, &s->flags, &s->sample_rate,
+                              &s->bit_rate, &frame_length);
         if(!length) {
             av_log(NULL, AV_LOG_INFO, "skip\n");
             for(s->bufptr = s->buf; s->bufptr < s->buf + HEADER_SIZE - 1; s->bufptr++)
@@ -215,15 +216,15 @@ 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;
     }
 
-    avctx->sample_rate = sample_rate;
+    avctx->sample_rate = s->sample_rate;
     avctx->channels = channels_multi(flags);
-    avctx->bit_rate = bit_rate;
+    avctx->bit_rate = s->bit_rate;
 
     nblocks = dts_blocks_num(s->state);
 
--