From cc09e77e2a1900da662e59571eaef15737fef28d Mon Sep 17 00:00:00 2001
From: "Alexander E. Patrakov" <patrakov@gmail.com>
Date: Sun, 24 Aug 2008 05:47:45 +0000
Subject: [PATCH] Correct scaling factor in DCA decoder synthesis. Patch by
Alexander Patrakov ($lastname at gmail.com) Thread: dca.c: output scale is a
bit off
Originally committed as revision 14937 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
libavcodec/dca.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/dca.c b/libavcodec/dca.c
index f7631d4fa83..ef691f21171 100644
--- a/libavcodec/dca.c
+++ b/libavcodec/dca.c
@@ -990,7 +990,7 @@ static int dca_subsubframe(DCAContext * s)
/* static float pcm_to_double[8] =
{32768.0, 32768.0, 524288.0, 524288.0, 0, 8388608.0, 8388608.0};*/
qmf_32_subbands(s, k, subband_samples[k], &s->samples[256 * k],
- 2.0 / 3 /*pcm_to_double[s->source_pcm_res] */ ,
+ M_SQRT1_2 /*pcm_to_double[s->source_pcm_res] */ ,
0 /*s->bias */ );
}
--
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