---
libavcodec/flacdsp.h | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/libavcodec/flacdsp.h b/libavcodec/flacdsp.h
index 272cf2a..36cd904 100644
--- a/libavcodec/flacdsp.h
+++ b/libavcodec/flacdsp.h
@@ -27,6 +27,13 @@ typedef struct FLACDSPContext {
int len, int shift);
void (*lpc)(int32_t *samples, const int coeffs[32], int order,
int qlevel, int len);
+ /**
+ * This function has some limitations with various configurations:
+ * - when CONFIG_SMALL is 0 there is an unrolled loop which assumes the
+ * maximum value of order is 32.
+ * - when SSE4 (or newer) is available on x86 there is an unrolled copy
+ * which also assumes the maximum value of order is 0.
+ */
void (*lpc_encode)(int32_t *res, const int32_t *smp, int len, int order,
const int32_t *coefs, int shift);
} FLACDSPContext;
--
1.7.9
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