sbc: ensure 16-byte buffer position alignment for 4 subbands encoding

Buffer position in X array was not always 16-bytes aligned.
Strict 16-byte alignment is strictly required for powerpc altivec
simd optimizations because altivec does not have support for
unaligned vector loads at all.

1 files changed, 1 insertions, 1 deletions

diff --git a/sbc/sbc.c b/sbc/sbc.c
index 1510adcb..b251d508 100644
--- a/sbc/sbc.c
+++ b/sbc/sbc.c
@@ -924,7 +924,7 @@ static void sbc_encoder_init(struct sbc_encoder_state *state,
 				const struct sbc_frame *frame)
 {
 	memset(&state->X, 0, sizeof(state->X));
-	state->position = SBC_X_BUFFER_SIZE - frame->subbands * 9;
+	state->position = (SBC_X_BUFFER_SIZE - frame->subbands * 9) & ~7;
 
 	sbc_init_primitives(state);
 }