State that the maximum value of order is 32. This limit is used in both
C and x86 assebly code.
---
libavcodec/flacdsp.h | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/libavcodec/flacdsp.h b/libavcodec/flacdsp.h
index 7bb0dd0e9a..90fd3f04b5 100644
--- a/libavcodec/flacdsp.h
+++ b/libavcodec/flacdsp.h
@@ -30,6 +30,14 @@ typedef struct FLACDSPContext {
int qlevel, int len);
void (*lpc32)(int32_t *samples, const int coeffs[32], int order,
int qlevel, int len);
+
+ /**
+ * These encoder functions support a maximum order of 32.
+ *
+ * This limit is used:
+ * - when CONFIG_SMALL is 0 to unroll a loop in the C template.
+ * - when SSE4 (or newer) is available on x86 to unroll a copy loop.
+ */
void (*lpc16_encode)(int32_t *res, const int32_t *smp, int len, int order,
const int32_t coefs[32], int shift);
void (*lpc32_encode)(int32_t *res, const int32_t *smp, int len, int order,
--
2.15.0
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