avcodec/truespeech: fix left shift of negative value

9b611dee · Paul B Mahol · 21838cad · 9b611dee
Commit 9b611dee authored Sep 26, 2019 by Paul B Mahol
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truespeech.c libavcodec/truespeech.c +1 -1

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--- a/libavcodec/truespeech.c
+++ b/libavcodec/truespeech.c
@@ -281,7 +281,7 @@ static void truespeech_synth(TSContext *dec, int16_t *out, int quart)

    ptr0 = dec->tmp3;
    for(i = 0; i < 60; i++){
-        int sum = out[i] << 12;
+        int sum = out[i] * (1 << 12);
        for(k = 0; k < 8; k++)
            sum += ptr0[k] * t[k];
        for(k = 7; k > 0; k--)