From b8c2b9c39279171f647d9c81f34ffa3d3ae93c47 Mon Sep 17 00:00:00 2001
From: Daniil Cherednik <dan.cherednik@gmail.com>
Date: Mon, 20 Feb 2017 23:22:51 +0000
Subject: avcodec/dcaenc: Initial implementation of ADPCM encoding for DCA
 encoder

---
 libavcodec/dcaenc.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'libavcodec/dcaenc.h')

diff --git a/libavcodec/dcaenc.h b/libavcodec/dcaenc.h
index 06816c2..63fdaf0 100644
--- a/libavcodec/dcaenc.h
+++ b/libavcodec/dcaenc.h
@@ -24,6 +24,8 @@
 
 #include <stdint.h>
 
+#include "dcamath.h"
+
 typedef struct {
     int32_t m;
     int32_t e;
@@ -144,4 +146,13 @@ static const int8_t channel_reorder_nolfe[16][9] = {
     { 3,  2,  4,  0,  1,  5,  7,  6, -1 },
 };
 
+static inline int32_t quantize_value(int32_t value, softfloat quant)
+{
+    int32_t offset = 1 << (quant.e - 1);
+
+    value = mul32(value, quant.m) + offset;
+    value = value >> quant.e;
+    return value;
+}
+
 #endif /* AVCODEC_DCAENC_H */
-- 
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