From e4ed2cf5a0282ca8bc24bf3d6535b8b445e23341 Mon Sep 17 00:00:00 2001
From: Jun Zhao <jun.z...@intel.com>
Date: Wed, 14 Jun 2017 10:35:20 +0800
Subject: [PATCH V5 3/4] lavc/golobm: Add set_ue_golomb_long to support up to
2^32 -2.
add set_ue_golomb_long to support up to 2^32-2.
Reviewed-by: Mark Thompson <s...@jkqxz.net>
Reviewed-by: Michael Niedermayer <mich...@niedermayer.cc>
Signed-off-by: Jun Zhao <jun.z...@intel.com>
---
libavcodec/golomb.h | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/libavcodec/golomb.h b/libavcodec/golomb.h
index 1e834f9327..efb1eff8aa 100644
--- a/libavcodec/golomb.h
+++ b/libavcodec/golomb.h
@@ -474,6 +474,21 @@ static inline void set_ue_golomb(PutBitContext *pb, int i)
}
/**
+ * write unsigned exp golomb code. 2^32-2 at most.
+ */
+static inline void set_ue_golomb_long(PutBitContext *pb, uint32_t i)
+{
+ av_assert2(i <= (UINT32_MAX - 1));
+
+ if (i < 256)
+ put_bits(pb, ff_ue_golomb_len[i], i + 1);
+ else {
+ int e = av_log2(i + 1);
+ put_bits64(pb, 2 * e + 1, i + 1);
+ }
+}
+
+/**
* write truncated unsigned exp golomb code.
*/
static inline void set_te_golomb(PutBitContext *pb, int i, int range)
--
2.11.0
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