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Code Issues Releases Activity

x86: lpc: fix a segfault in av_evaluate_lls_sse2()

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This commit is contained in:
Loren Merritt 2013-06-30 22:56:58 +00:00
parent 6765ee7b9c
commit 1221bb6239
2 changed files with 2 additions and 2 deletions
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2
libavcodec/lpc.c
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@ -221,7 +221,7 @@ int ff_lpc_calc_coefs(LPCContext *s,
if(pass){ if(pass){
double eval, inv, rinv; double eval, inv, rinv;
eval= m[(pass-1)&1].evaluate_lls(&m[(pass-1)&1], var+1, max_order-1); eval= m[pass&1].evaluate_lls(&m[(pass-1)&1], var+1, max_order-1);
eval= (512>>pass) + fabs(eval - var[0]); eval= (512>>pass) + fabs(eval - var[0]);
inv = 1/eval; inv = 1/eval;
rinv = sqrt(inv); rinv = sqrt(inv);

2
libavutil/x86/lls.asm
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@ -197,7 +197,7 @@ cglobal update_lls, 3,6,8, ctx, var, count, i, j, count2
INIT_XMM sse2 INIT_XMM sse2
cglobal evaluate_lls, 2,4,2, ctx, var, order, i cglobal evaluate_lls, 3,4,2, ctx, var, order, i
; This function is often called on the same buffer as update_lls, but with ; This function is often called on the same buffer as update_lls, but with
; an offset. They can't both be aligned. ; an offset. They can't both be aligned.
; Load halves rather than movu to avoid store-forwarding stalls, since the ; Load halves rather than movu to avoid store-forwarding stalls, since the