avcodec/truespeech: fix left shift of negative value

5 years ago · 9b611deef1
parent 21838cad2f
commit 9b611deef1
1 changed files with 1 additions and 1 deletions
--- 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--)