[FFmpeg-cvslog] r14034 - trunk/libavcodec/ra288.c
vitor
subversion
Mon Jun 30 18:53:34 CEST 2008
Author: vitor
Date: Mon Jun 30 18:53:33 2008
New Revision: 14034
Log:
Reindent the whole file
Modified:
trunk/libavcodec/ra288.c
Modified: trunk/libavcodec/ra288.c
==============================================================================
--- trunk/libavcodec/ra288.c (original)
+++ trunk/libavcodec/ra288.c Mon Jun 30 18:53:33 2008
@@ -23,23 +23,23 @@
#include "ra288.h"
typedef struct {
- float history[8];
- float output[40];
- float pr1[36];
- float pr2[10];
- int phase, phasep;
+ float history[8];
+ float output[40];
+ float pr1[36];
+ float pr2[10];
+ int phase, phasep;
- float st1a[111],st1b[37],st1[37];
- float st2a[38],st2b[11],st2[11];
- float sb[41];
- float lhist[10];
+ float st1a[111], st1b[37], st1[37];
+ float st2a[38], st2b[11], st2[11];
+ float sb[41];
+ float lhist[10];
} Real288_internal;
static int ra288_decode_init(AVCodecContext * avctx)
{
- Real288_internal *glob=avctx->priv_data;
- memset(glob,0,sizeof(Real288_internal));
- return 0;
+ Real288_internal *glob = avctx->priv_data;
+ memset(glob, 0, sizeof(Real288_internal));
+ return 0;
}
static void prodsum(float *tgt, float *src, int len, int n);
@@ -49,192 +49,234 @@ static void colmult(float *tgt, float *m
/* initial decode */
-static void unpack(unsigned short *tgt, const unsigned char *src, unsigned int len)
+static void unpack(unsigned short *tgt, const unsigned char *src,
+ unsigned int len)
{
- int x,y,z;
- int n,temp;
- int buffer[len];
+ int x, y, z;
+ int n, temp;
+ int buffer[len];
- for (x=0;x<len;tgt[x++]=0)
- buffer[x]=9+(x&1);
+ for (x=0; x < len; tgt[x++] = 0)
+ buffer[x] = 9 + (x & 1);
- for (x=y=z=0;x<len/*was 38*/;x++) {
- n=buffer[y]-z;
- temp=src[x];
- if (n<8) temp&=255>>(8-n);
- tgt[y]+=temp<<z;
- if (n<=8) {
- tgt[++y]+=src[x]>>n;
- z=8-n;
- } else z+=8;
+ for (x=y=z=0; x < len/*was 38*/; x++) {
+ n = buffer[y] - z;
+ temp = src[x];
+
+ if (n < 8)
+ temp &= 255 >> (8 - n);
+
+ tgt[y] += temp << z;
+
+ if (n <= 8) {
+ tgt[++y] += src[x] >> n;
+ z = 8 - n;
+ } else
+ z += 8;
}
}
static void update(Real288_internal *glob)
{
- int x,y;
- float buffer1[40],temp1[37];
- float buffer2[8],temp2[11];
+ 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->phasep+5; x < 40; buffer1[x++] = glob->output[(y++)%40]);
- 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);
+ 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 */
static void decode(Real288_internal *glob, unsigned int input)
{
- unsigned int x,y;
- float f;
- double sum,sumsum;
- float *p1,*p2;
- float buffer[5];
- const float *table;
+ unsigned int x, y;
+ float f;
+ double sum, sumsum;
+ float *p1, *p2;
+ float buffer[5];
+ const float *table;
- for (x=36;x--;glob->sb[x+5]=glob->sb[x]);
- for (x=5;x--;) {
- p1=glob->sb+x;p2=glob->pr1;
- for (sum=0,y=36;y--;sum-=(*(++p1))*(*(p2++)));
- glob->sb[x]=sum;
- }
+ for (x=36; x--; glob->sb[x+5] = glob->sb[x]);
- f=amptable[input&7];
- table=codetable+(input>>3)*5;
+ for (x=5; x--;) {
+ p1 = glob->sb+x;
+ p2 = glob->pr1;
+ for (sum=0, y=36; y--; sum -= (*(++p1))*(*(p2++)));
- /* convert log and do rms */
- for (sum=32,x=10;x--;sum-=glob->pr2[x]*glob->lhist[x]);
- if (sum<0) sum=0; else if (sum>60) sum=60;
+ glob->sb[x] = sum;
+ }
- sumsum=exp(sum*0.1151292546497)*f; /* pow(10.0,sum/20)*f */
- for (sum=0,x=5;x--;) { buffer[x]=table[x]*sumsum; sum+=buffer[x]*buffer[x]; }
- if ((sum/=5)<1) sum=1;
+ f = amptable[input & 7];
+ table = codetable + (input >> 3) * 5;
- /* shift and store */
- for (x=10;--x;glob->lhist[x]=glob->lhist[x-1]);
- *glob->lhist=glob->history[glob->phase]=10*log10(sum)-32;
+ /* convert log and do rms */
+ for (sum=32, x=10; x--; sum -= glob->pr2[x] * glob->lhist[x]);
- for (x=1;x<5;x++) for (y=x;y--;buffer[x]-=glob->pr1[x-y-1]*buffer[y]);
+ if (sum < 0)
+ sum = 0;
+ else if (sum > 60)
+ sum = 60;
- /* output */
- for (x=0;x<5;x++) {
- f=glob->sb[4-x]+buffer[x];
- if (f>4095) f=4095; else if (f<-4095) f=-4095;
- glob->output[glob->phasep+x]=glob->sb[4-x]=f;
- }
+ sumsum = exp(sum * 0.1151292546497) * f; /* pow(10.0,sum/20)*f */
+
+ for (sum=0, x=5; x--;) {
+ buffer[x] = table[x] * sumsum;
+ sum += buffer[x] * buffer[x];
+ }
+
+ if ((sum /= 5) < 1)
+ sum = 1;
+
+ /* shift and store */
+ for (x=10; --x; glob->lhist[x] = glob->lhist[x-1]);
+
+ *glob->lhist = glob->history[glob->phase] = 10 * log10(sum) - 32;
+
+ for (x=1; x < 5; x++)
+ for (y=x; y--; buffer[x] -= glob->pr1[x-y-1] * buffer[y]);
+
+ /* output */
+ for (x=0; x < 5; x++) {
+ f = glob->sb[4-x] + buffer[x];
+
+ if (f > 4095)
+ f = 4095;
+ else if (f < -4095)
+ f = -4095;
+
+ glob->output[glob->phasep+x] = glob->sb[4-x] = f;
+ }
}
/* column multiply */
static void colmult(float *tgt, float *m1, const float *m2, int n)
{
- while (n--)
- *(tgt++)=(*(m1++))*(*(m2++));
+ while (n--)
+ *(tgt++) = (*(m1++)) * (*(m2++));
}
static int pred(float *in, float *tgt, int n)
{
- int x,y;
- float *p1,*p2;
- double f0,f1,f2;
- float temp;
+ int x, y;
+ float *p1, *p2;
+ double f0, f1, f2;
+ float temp;
- if (in[n]==0) return 0;
- if ((f0=*in)<=0) return 0;
+ if (in[n] == 0)
+ return 0;
- for (x=1;;x++) {
- if (n<x) return 1;
+ if ((f0 = *in) <= 0)
+ return 0;
- p1=in+x;
- p2=tgt;
- f1=*(p1--);
- for (y=x;--y;f1+=(*(p1--))*(*(p2++)));
+ for (x=1 ; ; x++) {
+ if (n < x)
+ return 1;
- p1=tgt+x-1;
- p2=tgt;
- *(p1--)=f2=-f1/f0;
- for (y=x>>1;y--;) {
- temp=*p2+*p1*f2;
- *(p1--)+=*p2*f2;
- *(p2++)=temp;
+ p1 = in + x;
+ p2 = tgt;
+ f1 = *(p1--);
+ for (y=x; --y; f1 += (*(p1--))*(*(p2++)));
+
+ p1 = tgt + x - 1;
+ p2 = tgt;
+ *(p1--) = f2 = -f1/f0;
+ for (y=x >> 1; y--;) {
+ temp = *p2 + *p1 * f2;
+ *(p1--) += *p2 * f2;
+ *(p2++) = temp;
+ }
+ if ((f0 += f1*f2) < 0)
+ return 0;
}
- if ((f0+=f1*f2)<0) return 0;
- }
}
-static void co(int n, int i, int j, float *in, float *out, float *st1, float *st2, const float *table)
+static void co(int n, int i, int j, float *in, float *out, float *st1,
+ float *st2, const float *table)
{
- int a,b,c;
- unsigned int x;
- float *fp;
- float buffer1[37];
- float buffer2[37];
- float work[111];
+ int a, b, c;
+ unsigned int x;
+ float *fp;
+ float buffer1[37];
+ float buffer2[37];
+ float work[111];
- /* rotate and multiply */
- c=(b=(a=n+i)+j)-i;
- fp=st1+i;
- for (x=0;x<b;x++) {
- if (x==c) fp=in;
- work[x]=*(table++)*(*(st1++)=*(fp++));
- }
+ /* rotate and multiply */
+ c = (b = (a = n + i) + j) - i;
+ fp = st1 + i;
+ for (x=0; x < b; x++) {
+ if (x == c)
+ fp=in;
+ work[x] = *(table++) * (*(st1++) = *(fp++));
+ }
- prodsum(buffer1,work+n,i,n);
- prodsum(buffer2,work+a,j,n);
+ prodsum(buffer1, work + n, i, n);
+ prodsum(buffer2, work + a, j, n);
- for (x=0;x<=n;x++) {
- *st2=*st2*(0.5625)+buffer1[x];
- out[x]=*(st2++)+buffer2[x];
- }
- *out*=1.00390625; /* to prevent clipping */
+ for (x=0;x<=n;x++) {
+ *st2 = *st2 * (0.5625) + buffer1[x];
+ out[x] = *(st2++) + buffer2[x];
+ }
+ *out *= 1.00390625; /* to prevent clipping */
}
/* product sum (lsf) */
static void prodsum(float *tgt, float *src, int len, int n)
{
- unsigned int x;
- float *p1,*p2;
- double sum;
+ 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;
- }
+ while (n >= 0) {
+ p1 = (p2 = src) - n;
+ for (sum=0, x=len; x--; sum += (*p1++) * (*p2++));
+ tgt[n--] = sum;
+ }
}
-static void * decode_block(AVCodecContext * avctx, const unsigned char *in, signed short int *out,unsigned len)
+static void * decode_block(AVCodecContext * avctx, const unsigned char *in,
+ signed short int *out, unsigned len)
{
- int x,y;
- Real288_internal *glob=avctx->priv_data;
- unsigned short int buffer[len];
+ int x, y;
+ Real288_internal *glob = avctx->priv_data;
+ unsigned short int buffer[len];
- unpack(buffer,in,len);
- for (x=0;x<32;x++)
- {
- glob->phasep=(glob->phase=x&7)*5;
- decode(glob,buffer[x]);
- for (y=0;y<5;*(out++)=8*glob->output[glob->phasep+(y++)]);
- if (glob->phase==3) update(glob);
- }
- return out;
+ unpack(buffer, in, len);
+
+ for (x=0; x < 32; x++) {
+ glob->phasep = (glob->phase = x & 7) * 5;
+ decode(glob, buffer[x]);
+
+ for (y=0; y<5; *(out++) = 8 * glob->output[glob->phasep+(y++)]);
+
+ if (glob->phase == 3)
+ update(glob);
+ }
+
+ return out;
}
/* Decode a block (celp) */
-static int ra288_decode_frame(AVCodecContext * avctx,
- void *data, int *data_size,
- const uint8_t * buf, int buf_size)
+static int ra288_decode_frame(AVCodecContext * avctx, void *data,
+ int *data_size, const uint8_t * buf,
+ int buf_size)
{
void *datao;
- if (buf_size < avctx->block_align)
- {
- av_log(avctx, AV_LOG_ERROR, "ffra288: Error! Input buffer is too small [%d<%d]\n",buf_size,avctx->block_align);
+ if (buf_size < avctx->block_align) {
+ av_log(avctx, AV_LOG_ERROR,
+ "ffra288: Error! Input buffer is too small [%d<%d]\n",
+ buf_size, avctx->block_align);
return 0;
}
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