|  |  | @@ -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   st1a[111],st1b[37],st1[37]; | 
		
	
		
			
			|  |  |  | float   st2a[38],st2b[11],st2[11]; | 
		
	
		
			
			|  |  |  | float   sb[41]; | 
		
	
		
			
			|  |  |  | float   lhist[10]; | 
		
	
		
			
			|  |  |  | 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]; | 
		
	
		
			
			|  |  |  | } 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 *m1, const float *m2, int n); | 
		
	
		
			
			|  |  |  | 
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			|  |  |  | 
 | 
		
	
		
			
			|  |  |  | /* 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]; | 
		
	
		
			
			|  |  |  | 
 | 
		
	
		
			
			|  |  |  | 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; | 
		
	
		
			
			|  |  |  | 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=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]; | 
		
	
		
			
			|  |  |  | 
 | 
		
	
		
			
			|  |  |  | 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); | 
		
	
		
			
			|  |  |  | 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 */ | 
		
	
		
			
			|  |  |  | 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; | 
		
	
		
			
			|  |  |  | 
 | 
		
	
		
			
			|  |  |  | 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; | 
		
	
		
			
			|  |  |  | } | 
		
	
		
			
			|  |  |  | unsigned int x, y; | 
		
	
		
			
			|  |  |  | float f; | 
		
	
		
			
			|  |  |  | double sum, sumsum; | 
		
	
		
			
			|  |  |  | float *p1, *p2; | 
		
	
		
			
			|  |  |  | float buffer[5]; | 
		
	
		
			
			|  |  |  | const float *table; | 
		
	
		
			
			|  |  |  | 
 | 
		
	
		
			
			|  |  |  | f=amptable[input&7]; | 
		
	
		
			
			|  |  |  | table=codetable+(input>>3)*5; | 
		
	
		
			
			|  |  |  | for (x=36; x--; glob->sb[x+5] = glob->sb[x]); | 
		
	
		
			
			|  |  |  | 
 | 
		
	
		
			
			|  |  |  | /* 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; | 
		
	
		
			
			|  |  |  | for (x=5; x--;) { | 
		
	
		
			
			|  |  |  | p1 = glob->sb+x; | 
		
	
		
			
			|  |  |  | p2 = glob->pr1; | 
		
	
		
			
			|  |  |  | for (sum=0, y=36; y--; sum -= (*(++p1))*(*(p2++))); | 
		
	
		
			
			|  |  |  | 
 | 
		
	
		
			
			|  |  |  | 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; | 
		
	
		
			
			|  |  |  | glob->sb[x] = sum; | 
		
	
		
			
			|  |  |  | } | 
		
	
		
			
			|  |  |  | 
 | 
		
	
		
			
			|  |  |  | /* shift and store */ | 
		
	
		
			
			|  |  |  | for (x=10;--x;glob->lhist[x]=glob->lhist[x-1]); | 
		
	
		
			
			|  |  |  | *glob->lhist=glob->history[glob->phase]=10*log10(sum)-32; | 
		
	
		
			
			|  |  |  | f = amptable[input & 7]; | 
		
	
		
			
			|  |  |  | table = codetable + (input >> 3) * 5; | 
		
	
		
			
			|  |  |  | 
 | 
		
	
		
			
			|  |  |  | for (x=1;x<5;x++) for (y=x;y--;buffer[x]-=glob->pr1[x-y-1]*buffer[y]); | 
		
	
		
			
			|  |  |  | /* convert log and do rms */ | 
		
	
		
			
			|  |  |  | for (sum=32, x=10; x--; sum -= glob->pr2[x] * glob->lhist[x]); | 
		
	
		
			
			|  |  |  | 
 | 
		
	
		
			
			|  |  |  | /* 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; | 
		
	
		
			
			|  |  |  | } | 
		
	
		
			
			|  |  |  | if (sum < 0) | 
		
	
		
			
			|  |  |  | sum = 0; | 
		
	
		
			
			|  |  |  | else if (sum > 60) | 
		
	
		
			
			|  |  |  | sum = 60; | 
		
	
		
			
			|  |  |  | 
 | 
		
	
		
			
			|  |  |  | 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; | 
		
	
		
			
			|  |  |  | 
 | 
		
	
		
			
			|  |  |  | if (in[n]==0) return 0; | 
		
	
		
			
			|  |  |  | if ((f0=*in)<=0) return 0; | 
		
	
		
			
			|  |  |  | 
 | 
		
	
		
			
			|  |  |  | for (x=1;;x++) { | 
		
	
		
			
			|  |  |  | if (n<x) return 1; | 
		
	
		
			
			|  |  |  | 
 | 
		
	
		
			
			|  |  |  | 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; | 
		
	
		
			
			|  |  |  | int x, y; | 
		
	
		
			
			|  |  |  | float *p1, *p2; | 
		
	
		
			
			|  |  |  | double f0, f1, f2; | 
		
	
		
			
			|  |  |  | float temp; | 
		
	
		
			
			|  |  |  | 
 | 
		
	
		
			
			|  |  |  | if (in[n] == 0) | 
		
	
		
			
			|  |  |  | return 0; | 
		
	
		
			
			|  |  |  | 
 | 
		
	
		
			
			|  |  |  | if ((f0 = *in) <= 0) | 
		
	
		
			
			|  |  |  | return 0; | 
		
	
		
			
			|  |  |  | 
 | 
		
	
		
			
			|  |  |  | for (x=1 ; ; x++) { | 
		
	
		
			
			|  |  |  | if (n < x) | 
		
	
		
			
			|  |  |  | return 1; | 
		
	
		
			
			|  |  |  | 
 | 
		
	
		
			
			|  |  |  | 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]; | 
		
	
		
			
			|  |  |  | 
 | 
		
	
		
			
			|  |  |  | /* 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++)); | 
		
	
		
			
			|  |  |  | } | 
		
	
		
			
			|  |  |  | 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++)); | 
		
	
		
			
			|  |  |  | } | 
		
	
		
			
			|  |  |  | 
 | 
		
	
		
			
			|  |  |  | 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; | 
		
	
		
			
			|  |  |  | 
 | 
		
	
		
			
			|  |  |  | while (n>=0) | 
		
	
		
			
			|  |  |  | { | 
		
	
		
			
			|  |  |  | p1=(p2=src)-n; | 
		
	
		
			
			|  |  |  | for (sum=0,x=len;x--;sum+=(*p1++)*(*p2++)); | 
		
	
		
			
			|  |  |  | tgt[n--]=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; | 
		
	
		
			
			|  |  |  | } | 
		
	
		
			
			|  |  |  | } | 
		
	
		
			
			|  |  |  | 
 | 
		
	
		
			
			|  |  |  | 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]; | 
		
	
		
			
			|  |  |  | 
 | 
		
	
		
			
			|  |  |  | 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; | 
		
	
		
			
			|  |  |  | 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; | 
		
	
		
			
			|  |  |  | } | 
		
	
		
			
			|  |  |  | 
 | 
		
	
		
			
			|  |  |  | /* 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; | 
		
	
		
			
			|  |  |  | } | 
		
	
		
			
			|  |  |  | 
 | 
		
	
	
		
			
				|  |  | 
 |