[FFmpeg-cvslog] g723.1: very minor simplify of gen_acb_excitation()

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Thu Sep 29 21:50:59 2011 +0200| [04b4353f07097895f232f5ef89fd1ec351d83e7e] | committer: Michael Niedermayer

g723.1: very minor simplify of gen_acb_excitation()

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=04b4353f07097895f232f5ef89fd1ec351d83e7e
---

 libavcodec/g723_1.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/libavcodec/g723_1.c b/libavcodec/g723_1.c
index 0aeea87..b167998 100644
--- a/libavcodec/g723_1.c
+++ b/libavcodec/g723_1.c
@@ -543,8 +543,8 @@ static void gen_acb_excitation(int16_t *vector, int16_t *prev_excitation,
     /* Calculate adaptive vector */
     cb_ptr += subfrm.ad_cb_gain * 20;
     for (i = 0; i < SUBFRAME_LEN; i++) {
-        sum = ff_dot_product(residual + i, cb_ptr, PITCH_ORDER)<<1;
-        vector[i] = av_clipl_int32((sum << 1) + (1 << 15)) >> 16;
+        sum = ff_dot_product(residual + i, cb_ptr, PITCH_ORDER);
+        vector[i] = av_clipl_int32((sum << 2) + (1 << 15)) >> 16;
     }
 }