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Code Issues Releases Activity

Move function to avoid forward declaration

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Originally committed as revision 14036 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Vitor Sessak 2008-06-30 16:57:27 +00:00
parent c1fadf5012
commit 4452836391
1 changed files with 31 additions and 37 deletions
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68
libavcodec/ra288.c
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@ -35,12 +35,6 @@ typedef struct {
float lhist[10]; float lhist[10];
} Real288_internal; } Real288_internal;
static void prodsum(float *tgt, float *src, int len, int n);
static void co(int n, int i, int j, float *in, float *out, float *st1, float *st2, const float *table);
static int pred(float *in, float *tgt, int n);
static void colmult(float *tgt, float *m1, const float *m2, int n);
/* initial decode */ /* initial decode */
static void unpack(unsigned short *tgt, const unsigned char *src, static void unpack(unsigned short *tgt, const unsigned char *src,
unsigned int len) unsigned int len)
@ -69,27 +63,6 @@ static void unpack(unsigned short *tgt, const unsigned char *src,
} }
} }
static void update(Real288_internal *glob)
{
int x,y;
float buffer1[40], temp1[37];
float buffer2[8], temp2[11];
for (x=0, y=glob->phasep+5; x < 40; buffer1[x++] = glob->output[(y++)%40]);
co(36, 40, 35, buffer1, temp1, glob->st1a, glob->st1b, table1);
if (pred(temp1, glob->st1, 36))
colmult(glob->pr1, glob->st1, table1a, 36);
for (x=0, y=glob->phase + 1; x < 8; buffer2[x++] = glob->history[(y++) % 8]);
co(10, 8, 20, buffer2, temp2, glob->st2a, glob->st2b, table2);
if (pred(temp2, glob->st2, 10))
colmult(glob->pr2, glob->st2, table2a, 10);
}
/* Decode and produce output */ /* Decode and produce output */
static void decode(Real288_internal *glob, unsigned int input) static void decode(Real288_internal *glob, unsigned int input)
{ {
@ -194,6 +167,20 @@ static int pred(float *in, float *tgt, int n)
} }
} }
/* product sum (lsf) */
static void prodsum(float *tgt, float *src, int len, int n)
{
unsigned int x;
float *p1, *p2;
double sum;
while (n >= 0) {
p1 = (p2 = src) - n;
for (sum=0, x=len; x--; sum += (*p1++) * (*p2++));
tgt[n--] = sum;
}
}
static void co(int n, int i, int j, float *in, float *out, float *st1, static void co(int n, int i, int j, float *in, float *out, float *st1,
float *st2, const float *table) float *st2, const float *table)
{ {
@ -223,18 +210,25 @@ static void co(int n, int i, int j, float *in, float *out, float *st1,
*out *= 1.00390625; /* to prevent clipping */ *out *= 1.00390625; /* to prevent clipping */
} }
/* product sum (lsf) */ static void update(Real288_internal *glob)
static void prodsum(float *tgt, float *src, int len, int n)
{ {
unsigned int x; int x,y;
float *p1, *p2; float buffer1[40], temp1[37];
double sum; float buffer2[8], temp2[11];
while (n >= 0) { for (x=0, y=glob->phasep+5; x < 40; buffer1[x++] = glob->output[(y++)%40]);
p1 = (p2 = src) - n;
for (sum=0, x=len; x--; sum += (*p1++) * (*p2++)); co(36, 40, 35, buffer1, temp1, glob->st1a, glob->st1b, table1);
tgt[n--] = sum;
} if (pred(temp1, glob->st1, 36))
colmult(glob->pr1, glob->st1, table1a, 36);
for (x=0, y=glob->phase + 1; x < 8; buffer2[x++] = glob->history[(y++) % 8]);
co(10, 8, 20, buffer2, temp2, glob->st2a, glob->st2b, table2);
if (pred(temp2, glob->st2, 10))
colmult(glob->pr2, glob->st2, table2a, 10);
} }
static void * decode_block(AVCodecContext * avctx, const unsigned char *in, static void * decode_block(AVCodecContext * avctx, const unsigned char *in,