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Move factor multiplication out of irms()

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Originally committed as revision 13926 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Vitor Sessak 2008-06-23 20:35:02 +00:00
parent 498cb53163
commit 536ee17499
1 changed files with 3 additions and 3 deletions
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6
libavcodec/ra144.c
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@ -111,7 +111,7 @@ static void copy_and_dup(const int16_t *source, int16_t *target, int offset)
} }
/** inverse root mean square */ /** inverse root mean square */
static int irms(const int16_t *data, int factor) static int irms(const int16_t *data)
{ {
unsigned int i, sum = 0; unsigned int i, sum = 0;
@ -121,7 +121,7 @@ static int irms(const int16_t *data, int factor)
if (sum == 0) if (sum == 0)
return 0; /* OOPS - division by zero */ return 0; /* OOPS - division by zero */
return (0x20000000 / (t_sqrt(sum) >> 8)) * factor; return 0x20000000 / (t_sqrt(sum) >> 8);
} }
static void add_wav(int n, int skip_first, int *m, const int16_t *s1, static void add_wav(int n, int skip_first, int *m, const int16_t *s1,
@ -217,7 +217,7 @@ static void do_output_subblock(RA144Context *ractx,
if (cba_idx) { if (cba_idx) {
cba_idx += BLOCKSIZE/2 - 1; cba_idx += BLOCKSIZE/2 - 1;
copy_and_dup(ractx->adapt_cb, buffer_a, cba_idx); copy_and_dup(ractx->adapt_cb, buffer_a, cba_idx);
m[0] = irms(buffer_a, gval) >> 12; m[0] = (irms(buffer_a) * gval) >> 12;
} else { } else {
m[0] = 0; m[0] = 0;
} }