From: Oded Shimon <ods15@ods15.dyndns.org>
Date: Mon, 2 Oct 2006 05:55:20 +0000 (+0000)
Subject: Original Commit: r6 | ods15 | 2006-09-16 20:36:31 +0300 (Sat, 16 Sep 2006) | 2 lines
X-Git-Tag: v0.5~11685
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=1f7e7464e9b8e00381830a4e4a61ac95137fd712;p=coroid%2Fffmpeg_saccubus.git

Original Commit: r6 | ods15 | 2006-09-16 20:36:31 +0300 (Sat, 16 Sep 2006) | 2 lines

add correct and working put_float ...

Originally committed as revision 6417 to svn://svn.ffmpeg.org/ffmpeg/trunk
---

diff --git a/libavcodec/vorbis_enc.c b/libavcodec/vorbis_enc.c
index acb55b307..8811e3b7f 100644
--- a/libavcodec/vorbis_enc.c
+++ b/libavcodec/vorbis_enc.c
@@ -67,7 +67,13 @@ static inline int ilog(unsigned int a) {
 }
 
 static void put_float(PutBitContext * pb, float f) {
-    put_bits(pb, 32, *(uint32_t*)&f);
+    int exp, mant;
+    uint32_t res = 0;
+    mant = (int)ldexp(frexp(f, &exp), 20);
+    exp += 788 - 20;
+    if (mant < 0) { res |= (1 << 31); mant = -mant; }
+    res |= mant | (exp << 21);
+    put_bits(pb, 32, res);
 }
 
 static void put_codebook_header(PutBitContext * pb, codebook_t * cb) {