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Fix possible endless loop when decoding amr. 

Fixes bug 151.

Reviewed-by: Vitor Sessak
This commit is contained in:
Carl Eugen Hoyos 2011-12-18 14:20:14 +01:00
parent b6b0067511
commit 290e7eb77b
1 changed files with 2 additions and 0 deletions
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2
libavcodec/acelp_vectors.c
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@ -237,6 +237,7 @@ void ff_set_fixed_vector(float *out, const AMRFixed *in, float scale, int size)
int x = in->x[i], repeats = !((in->no_repeat_mask >> i) & 1);
float y = in->y[i] * scale;
if (in->pitch_lag > 0)
do {
out[x] += y;
y *= in->pitch_fac;
@ -252,6 +253,7 @@ void ff_clear_fixed_vector(float *out, const AMRFixed *in, int size)
for (i=0; i < in->n; i++) {
int x = in->x[i], repeats = !((in->no_repeat_mask >> i) & 1);
if (in->pitch_lag > 0)
do {
out[x] = 0.0;
x += in->pitch_lag;