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g723.1: fix addition overflow
[ffmpeg.git]
/
libavcodec
/
g723_1.c
diff --git
a/libavcodec/g723_1.c
b/libavcodec/g723_1.c
index
53b9ade
..
7d8a48e
100644
(file)
--- a/
libavcodec/g723_1.c
+++ b/
libavcodec/g723_1.c
@@
-979,7
+979,7
@@
static void formant_postfilter(G723_1_Context *p, int16_t *lpc, int16_t *buf)
/* Compensation filter */
for (j = 0; j < SUBFRAME_LEN; j++) {
- buf_ptr[j] = av_clipl_int32(signal_ptr[j] +
+ buf_ptr[j] = av_clipl_int32(
(int64_t)
signal_ptr[j] +
((signal_ptr[j - 1] >> 16) *
temp << 1)) >> 16;
}