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Diffstat (limited to 'media/libstagefright/codecs/aacenc/src/bit_cnt.c')
-rw-r--r--media/libstagefright/codecs/aacenc/src/bit_cnt.c780
1 files changed, 390 insertions, 390 deletions
diff --git a/media/libstagefright/codecs/aacenc/src/bit_cnt.c b/media/libstagefright/codecs/aacenc/src/bit_cnt.c
index 8853efc..9fe511c 100644
--- a/media/libstagefright/codecs/aacenc/src/bit_cnt.c
+++ b/media/libstagefright/codecs/aacenc/src/bit_cnt.c
@@ -26,14 +26,14 @@
#define HI_LTAB(a) (a>>8)
#define LO_LTAB(a) (a & 0xff)
-#define EXPAND(a) ((((Word32)(a&0xff00)) << 8)|(Word32)(a&0xff))
+#define EXPAND(a) ((((Word32)(a&0xff00)) << 8)|(Word32)(a&0xff))
/*****************************************************************************
*
* function name: count1_2_3_4_5_6_7_8_9_10_11
-* description: counts tables 1-11
-* returns:
+* description: counts tables 1-11
+* returns:
* input: quantized spectrum
* output: bitCount for tables 1-11
*
@@ -46,51 +46,51 @@ static void count1_2_3_4_5_6_7_8_9_10_11(const Word16 *values,
Word32 t0,t1,t2,t3,i;
Word32 bc1_2,bc3_4,bc5_6,bc7_8,bc9_10;
Word16 bc11,sc;
-
- bc1_2=0;
- bc3_4=0;
- bc5_6=0;
- bc7_8=0;
- bc9_10=0;
- bc11=0;
- sc=0;
+
+ bc1_2=0;
+ bc3_4=0;
+ bc5_6=0;
+ bc7_8=0;
+ bc9_10=0;
+ bc11=0;
+ sc=0;
for(i=0;i<width;i+=4){
-
- t0= values[i+0];
- t1= values[i+1];
- t2= values[i+2];
- t3= values[i+3];
-
+
+ t0= values[i+0];
+ t1= values[i+1];
+ t2= values[i+2];
+ t3= values[i+3];
+
/* 1,2 */
- bc1_2 = bc1_2 + EXPAND(huff_ltab1_2[t0+1][t1+1][t2+1][t3+1]);
+ bc1_2 = bc1_2 + EXPAND(huff_ltab1_2[t0+1][t1+1][t2+1][t3+1]);
/* 5,6 */
- bc5_6 = bc5_6 + EXPAND(huff_ltab5_6[t0+4][t1+4]);
- bc5_6 = bc5_6 + EXPAND(huff_ltab5_6[t2+4][t3+4]);
+ bc5_6 = bc5_6 + EXPAND(huff_ltab5_6[t0+4][t1+4]);
+ bc5_6 = bc5_6 + EXPAND(huff_ltab5_6[t2+4][t3+4]);
t0=ABS(t0);
t1=ABS(t1);
t2=ABS(t2);
t3=ABS(t3);
-
- bc3_4 = bc3_4 + EXPAND(huff_ltab3_4[t0][t1][t2][t3]);
-
- bc7_8 = bc7_8 + EXPAND(huff_ltab7_8[t0][t1]);
- bc7_8 = bc7_8 + EXPAND(huff_ltab7_8[t2][t3]);
-
- bc9_10 = bc9_10 + EXPAND(huff_ltab9_10[t0][t1]);
- bc9_10 = bc9_10 + EXPAND(huff_ltab9_10[t2][t3]);
-
+
+ bc3_4 = bc3_4 + EXPAND(huff_ltab3_4[t0][t1][t2][t3]);
+
+ bc7_8 = bc7_8 + EXPAND(huff_ltab7_8[t0][t1]);
+ bc7_8 = bc7_8 + EXPAND(huff_ltab7_8[t2][t3]);
+
+ bc9_10 = bc9_10 + EXPAND(huff_ltab9_10[t0][t1]);
+ bc9_10 = bc9_10 + EXPAND(huff_ltab9_10[t2][t3]);
+
bc11 = bc11 + huff_ltab11[t0][t1];
bc11 = bc11 + huff_ltab11[t2][t3];
-
-
+
+
sc = sc + (t0>0) + (t1>0) + (t2>0) + (t3>0);
}
-
+
bitCount[1]=extract_h(bc1_2);
bitCount[2]=extract_l(bc1_2);
bitCount[3]=extract_h(bc3_4) + sc;
@@ -108,8 +108,8 @@ static void count1_2_3_4_5_6_7_8_9_10_11(const Word16 *values,
/*****************************************************************************
*
* function name: count3_4_5_6_7_8_9_10_11
-* description: counts tables 3-11
-* returns:
+* description: counts tables 3-11
+* returns:
* input: quantized spectrum
* output: bitCount for tables 3-11
*
@@ -122,26 +122,26 @@ static void count3_4_5_6_7_8_9_10_11(const Word16 *values,
Word32 t0,t1,t2,t3, i;
Word32 bc3_4,bc5_6,bc7_8,bc9_10;
Word16 bc11,sc;
-
- bc3_4=0;
- bc5_6=0;
- bc7_8=0;
- bc9_10=0;
- bc11=0;
- sc=0;
+
+ bc3_4=0;
+ bc5_6=0;
+ bc7_8=0;
+ bc9_10=0;
+ bc11=0;
+ sc=0;
for(i=0;i<width;i+=4){
- t0= values[i+0];
- t1= values[i+1];
- t2= values[i+2];
- t3= values[i+3];
-
+ t0= values[i+0];
+ t1= values[i+1];
+ t2= values[i+2];
+ t3= values[i+3];
+
/*
5,6
*/
- bc5_6 = bc5_6 + EXPAND(huff_ltab5_6[t0+4][t1+4]);
- bc5_6 = bc5_6 + EXPAND(huff_ltab5_6[t2+4][t3+4]);
+ bc5_6 = bc5_6 + EXPAND(huff_ltab5_6[t0+4][t1+4]);
+ bc5_6 = bc5_6 + EXPAND(huff_ltab5_6[t2+4][t3+4]);
t0=ABS(t0);
t1=ABS(t1);
@@ -149,23 +149,23 @@ static void count3_4_5_6_7_8_9_10_11(const Word16 *values,
t3=ABS(t3);
- bc3_4 = bc3_4 + EXPAND(huff_ltab3_4[t0][t1][t2][t3]);
-
- bc7_8 = bc7_8 + EXPAND(huff_ltab7_8[t0][t1]);
- bc7_8 = bc7_8 + EXPAND(huff_ltab7_8[t2][t3]);
-
- bc9_10 = bc9_10 + EXPAND(huff_ltab9_10[t0][t1]);
- bc9_10 = bc9_10 + EXPAND(huff_ltab9_10[t2][t3]);
-
+ bc3_4 = bc3_4 + EXPAND(huff_ltab3_4[t0][t1][t2][t3]);
+
+ bc7_8 = bc7_8 + EXPAND(huff_ltab7_8[t0][t1]);
+ bc7_8 = bc7_8 + EXPAND(huff_ltab7_8[t2][t3]);
+
+ bc9_10 = bc9_10 + EXPAND(huff_ltab9_10[t0][t1]);
+ bc9_10 = bc9_10 + EXPAND(huff_ltab9_10[t2][t3]);
+
bc11 = bc11 + huff_ltab11[t0][t1];
bc11 = bc11 + huff_ltab11[t2][t3];
-
- sc = sc + (t0>0) + (t1>0) + (t2>0) + (t3>0);
+
+ sc = sc + (t0>0) + (t1>0) + (t2>0) + (t3>0);
}
-
- bitCount[1]=INVALID_BITCOUNT;
- bitCount[2]=INVALID_BITCOUNT;
+
+ bitCount[1]=INVALID_BITCOUNT;
+ bitCount[2]=INVALID_BITCOUNT;
bitCount[3]=extract_h(bc3_4) + sc;
bitCount[4]=extract_l(bc3_4) + sc;
bitCount[5]=extract_h(bc5_6);
@@ -175,7 +175,7 @@ static void count3_4_5_6_7_8_9_10_11(const Word16 *values,
bitCount[9]=extract_h(bc9_10) + sc;
bitCount[10]=extract_l(bc9_10) + sc;
bitCount[11]=bc11 + sc;
-
+
}
@@ -183,8 +183,8 @@ static void count3_4_5_6_7_8_9_10_11(const Word16 *values,
/*****************************************************************************
*
* function name: count5_6_7_8_9_10_11
-* description: counts tables 5-11
-* returns:
+* description: counts tables 5-11
+* returns:
* input: quantized spectrum
* output: bitCount for tables 5-11
*
@@ -198,33 +198,33 @@ static void count5_6_7_8_9_10_11(const Word16 *values,
Word32 bc5_6,bc7_8,bc9_10;
Word16 bc11,sc;
- bc5_6=0;
- bc7_8=0;
- bc9_10=0;
- bc11=0;
- sc=0;
+ bc5_6=0;
+ bc7_8=0;
+ bc9_10=0;
+ bc11=0;
+ sc=0;
for(i=0;i<width;i+=2){
- t0 = values[i+0];
- t1 = values[i+1];
+ t0 = values[i+0];
+ t1 = values[i+1];
- bc5_6 = bc5_6 + EXPAND(huff_ltab5_6[t0+4][t1+4]);
+ bc5_6 = bc5_6 + EXPAND(huff_ltab5_6[t0+4][t1+4]);
t0=ABS(t0);
t1=ABS(t1);
-
- bc7_8 = bc7_8 + EXPAND(huff_ltab7_8[t0][t1]);
- bc9_10 = bc9_10 + EXPAND(huff_ltab9_10[t0][t1]);
+
+ bc7_8 = bc7_8 + EXPAND(huff_ltab7_8[t0][t1]);
+ bc9_10 = bc9_10 + EXPAND(huff_ltab9_10[t0][t1]);
bc11 = bc11 + huff_ltab11[t0][t1];
-
-
+
+
sc = sc + (t0>0) + (t1>0);
}
- bitCount[1]=INVALID_BITCOUNT;
- bitCount[2]=INVALID_BITCOUNT;
- bitCount[3]=INVALID_BITCOUNT;
- bitCount[4]=INVALID_BITCOUNT;
+ bitCount[1]=INVALID_BITCOUNT;
+ bitCount[2]=INVALID_BITCOUNT;
+ bitCount[3]=INVALID_BITCOUNT;
+ bitCount[4]=INVALID_BITCOUNT;
bitCount[5]=extract_h(bc5_6);
bitCount[6]=extract_l(bc5_6);
bitCount[7]=extract_h(bc7_8) + sc;
@@ -232,15 +232,15 @@ static void count5_6_7_8_9_10_11(const Word16 *values,
bitCount[9]=extract_h(bc9_10) + sc;
bitCount[10]=extract_l(bc9_10) + sc;
bitCount[11]=bc11 + sc;
-
+
}
/*****************************************************************************
*
* function name: count7_8_9_10_11
-* description: counts tables 7-11
-* returns:
+* description: counts tables 7-11
+* returns:
* input: quantized spectrum
* output: bitCount for tables 7-11
*
@@ -253,43 +253,43 @@ static void count7_8_9_10_11(const Word16 *values,
Word32 t0,t1, i;
Word32 bc7_8,bc9_10;
Word16 bc11,sc;
-
- bc7_8=0;
- bc9_10=0;
- bc11=0;
- sc=0;
+
+ bc7_8=0;
+ bc9_10=0;
+ bc11=0;
+ sc=0;
for(i=0;i<width;i+=2){
t0=ABS(values[i+0]);
t1=ABS(values[i+1]);
- bc7_8 = bc7_8 + EXPAND(huff_ltab7_8[t0][t1]);
- bc9_10 = bc9_10 + EXPAND(huff_ltab9_10[t0][t1]);
+ bc7_8 = bc7_8 + EXPAND(huff_ltab7_8[t0][t1]);
+ bc9_10 = bc9_10 + EXPAND(huff_ltab9_10[t0][t1]);
bc11 = bc11 + huff_ltab11[t0][t1];
-
-
+
+
sc = sc + (t0>0) + (t1>0);
}
- bitCount[1]=INVALID_BITCOUNT;
- bitCount[2]=INVALID_BITCOUNT;
- bitCount[3]=INVALID_BITCOUNT;
- bitCount[4]=INVALID_BITCOUNT;
- bitCount[5]=INVALID_BITCOUNT;
- bitCount[6]=INVALID_BITCOUNT;
+ bitCount[1]=INVALID_BITCOUNT;
+ bitCount[2]=INVALID_BITCOUNT;
+ bitCount[3]=INVALID_BITCOUNT;
+ bitCount[4]=INVALID_BITCOUNT;
+ bitCount[5]=INVALID_BITCOUNT;
+ bitCount[6]=INVALID_BITCOUNT;
bitCount[7]=extract_h(bc7_8) + sc;
bitCount[8]=extract_l(bc7_8) + sc;
bitCount[9]=extract_h(bc9_10) + sc;
bitCount[10]=extract_l(bc9_10) + sc;
bitCount[11]=bc11 + sc;
-
+
}
/*****************************************************************************
*
* function name: count9_10_11
-* description: counts tables 9-11
-* returns:
+* description: counts tables 9-11
+* returns:
* input: quantized spectrum
* output: bitCount for tables 9-11
*
@@ -299,45 +299,45 @@ static void count9_10_11(const Word16 *values,
Word16 *bitCount)
{
- Word32 t0,t1,i;
+ Word32 t0,t1,i;
Word32 bc9_10;
Word16 bc11,sc;
- bc9_10=0;
- bc11=0;
- sc=0;
+ bc9_10=0;
+ bc11=0;
+ sc=0;
for(i=0;i<width;i+=2){
t0=ABS(values[i+0]);
t1=ABS(values[i+1]);
-
- bc9_10 += EXPAND(huff_ltab9_10[t0][t1]);
+
+ bc9_10 += EXPAND(huff_ltab9_10[t0][t1]);
bc11 = bc11 + huff_ltab11[t0][t1];
-
+
sc = sc + (t0>0) + (t1>0);
}
- bitCount[1]=INVALID_BITCOUNT;
- bitCount[2]=INVALID_BITCOUNT;
- bitCount[3]=INVALID_BITCOUNT;
- bitCount[4]=INVALID_BITCOUNT;
- bitCount[5]=INVALID_BITCOUNT;
- bitCount[6]=INVALID_BITCOUNT;
- bitCount[7]=INVALID_BITCOUNT;
- bitCount[8]=INVALID_BITCOUNT;
+ bitCount[1]=INVALID_BITCOUNT;
+ bitCount[2]=INVALID_BITCOUNT;
+ bitCount[3]=INVALID_BITCOUNT;
+ bitCount[4]=INVALID_BITCOUNT;
+ bitCount[5]=INVALID_BITCOUNT;
+ bitCount[6]=INVALID_BITCOUNT;
+ bitCount[7]=INVALID_BITCOUNT;
+ bitCount[8]=INVALID_BITCOUNT;
bitCount[9]=extract_h(bc9_10) + sc;
bitCount[10]=extract_l(bc9_10) + sc;
bitCount[11]=bc11 + sc;
-
+
}
-
+
/*****************************************************************************
*
* function name: count11
-* description: counts table 11
-* returns:
+* description: counts table 11
+* returns:
* input: quantized spectrum
* output: bitCount for table 11
*
@@ -347,37 +347,37 @@ static void count9_10_11(const Word16 *values,
Word16 *bitCount)
{
Word32 t0,t1,i;
- Word16 bc11,sc;
+ Word16 bc11,sc;
- bc11=0;
- sc=0;
+ bc11=0;
+ sc=0;
for(i=0;i<width;i+=2){
t0=ABS(values[i+0]);
t1=ABS(values[i+1]);
bc11 = bc11 + huff_ltab11[t0][t1];
-
+
sc = sc + (t0>0) + (t1>0);
}
- bitCount[1]=INVALID_BITCOUNT;
- bitCount[2]=INVALID_BITCOUNT;
- bitCount[3]=INVALID_BITCOUNT;
- bitCount[4]=INVALID_BITCOUNT;
- bitCount[5]=INVALID_BITCOUNT;
- bitCount[6]=INVALID_BITCOUNT;
- bitCount[7]=INVALID_BITCOUNT;
- bitCount[8]=INVALID_BITCOUNT;
- bitCount[9]=INVALID_BITCOUNT;
- bitCount[10]=INVALID_BITCOUNT;
+ bitCount[1]=INVALID_BITCOUNT;
+ bitCount[2]=INVALID_BITCOUNT;
+ bitCount[3]=INVALID_BITCOUNT;
+ bitCount[4]=INVALID_BITCOUNT;
+ bitCount[5]=INVALID_BITCOUNT;
+ bitCount[6]=INVALID_BITCOUNT;
+ bitCount[7]=INVALID_BITCOUNT;
+ bitCount[8]=INVALID_BITCOUNT;
+ bitCount[9]=INVALID_BITCOUNT;
+ bitCount[10]=INVALID_BITCOUNT;
bitCount[11]=bc11 + sc;
}
/*****************************************************************************
*
* function name: countEsc
-* description: counts table 11 (with Esc)
-* returns:
+* description: counts table 11 (with Esc)
+* returns:
* input: quantized spectrum
* output: bitCount for tables 11 (with Esc)
*
@@ -388,31 +388,31 @@ static void countEsc(const Word16 *values,
Word16 *bitCount)
{
Word32 t0,t1,t00,t01,i;
- Word16 bc11,ec,sc;
+ Word16 bc11,ec,sc;
- bc11=0;
- sc=0;
- ec=0;
+ bc11=0;
+ sc=0;
+ ec=0;
for(i=0;i<width;i+=2){
t0=ABS(values[i+0]);
t1=ABS(values[i+1]);
-
-
+
+
sc = sc + (t0>0) + (t1>0);
t00 = min(t0,16);
t01 = min(t1,16);
bc11 = bc11 + huff_ltab11[t00][t01];
-
-
+
+
if(t0 >= 16){
ec = ec + 5;
while(sub(t0=(t0 >> 1), 16) >= 0) {
ec = ec + 2;
}
}
-
-
+
+
if(t1 >= 16){
ec = ec + 5;
while(sub(t1=(t1 >> 1), 16) >= 0) {
@@ -420,16 +420,16 @@ static void countEsc(const Word16 *values,
}
}
}
- bitCount[1]=INVALID_BITCOUNT;
- bitCount[2]=INVALID_BITCOUNT;
- bitCount[3]=INVALID_BITCOUNT;
- bitCount[4]=INVALID_BITCOUNT;
- bitCount[5]=INVALID_BITCOUNT;
- bitCount[6]=INVALID_BITCOUNT;
- bitCount[7]=INVALID_BITCOUNT;
- bitCount[8]=INVALID_BITCOUNT;
- bitCount[9]=INVALID_BITCOUNT;
- bitCount[10]=INVALID_BITCOUNT;
+ bitCount[1]=INVALID_BITCOUNT;
+ bitCount[2]=INVALID_BITCOUNT;
+ bitCount[3]=INVALID_BITCOUNT;
+ bitCount[4]=INVALID_BITCOUNT;
+ bitCount[5]=INVALID_BITCOUNT;
+ bitCount[6]=INVALID_BITCOUNT;
+ bitCount[7]=INVALID_BITCOUNT;
+ bitCount[8]=INVALID_BITCOUNT;
+ bitCount[9]=INVALID_BITCOUNT;
+ bitCount[10]=INVALID_BITCOUNT;
bitCount[11]=bc11 + sc + ec;
}
@@ -463,7 +463,7 @@ static COUNT_FUNCTION countFuncTable[CODE_BOOK_ESC_LAV+1] =
/*****************************************************************************
*
* function name: bitCount
-* description: count bits
+* description: count bits
*
*****************************************************************************/
Word16 bitCount(const Word16 *values,
@@ -474,7 +474,7 @@ Word16 bitCount(const Word16 *values,
/*
check if we can use codebook 0
*/
-
+
if(maxVal == 0)
bitCount[0] = 0;
else
@@ -489,7 +489,7 @@ Word16 bitCount(const Word16 *values,
/*****************************************************************************
*
* function name: codeValues
-* description: write huffum bits
+* description: write huffum bits
*
*****************************************************************************/
Word16 codeValues(Word16 *values, Word16 width, Word16 codeBook, HANDLE_BIT_BUF hBitstream)
@@ -499,85 +499,85 @@ Word16 codeValues(Word16 *values, Word16 width, Word16 codeBook, HANDLE_BIT_BUF
UWord16 codeWord, codeLength;
Word16 sign, signLength;
-
+
switch (codeBook) {
case CODE_BOOK_ZERO_NO:
break;
case CODE_BOOK_1_NO:
for(i=0; i<width; i+=4) {
- t0 = values[i+0];
- t1 = values[i+1];
- t2 = values[i+2];
- t3 = values[i+3];
- codeWord = huff_ctab1[t0+1][t1+1][t2+1][t3+1];
- codeLength = HI_LTAB(huff_ltab1_2[t0+1][t1+1][t2+1][t3+1]);
- WriteBits(hBitstream, codeWord, codeLength);
+ t0 = values[i+0];
+ t1 = values[i+1];
+ t2 = values[i+2];
+ t3 = values[i+3];
+ codeWord = huff_ctab1[t0+1][t1+1][t2+1][t3+1];
+ codeLength = HI_LTAB(huff_ltab1_2[t0+1][t1+1][t2+1][t3+1]);
+ WriteBits(hBitstream, codeWord, codeLength);
}
break;
case CODE_BOOK_2_NO:
for(i=0; i<width; i+=4) {
- t0 = values[i+0];
- t1 = values[i+1];
- t2 = values[i+2];
- t3 = values[i+3];
- codeWord = huff_ctab2[t0+1][t1+1][t2+1][t3+1];
- codeLength = LO_LTAB(huff_ltab1_2[t0+1][t1+1][t2+1][t3+1]);
+ t0 = values[i+0];
+ t1 = values[i+1];
+ t2 = values[i+2];
+ t3 = values[i+3];
+ codeWord = huff_ctab2[t0+1][t1+1][t2+1][t3+1];
+ codeLength = LO_LTAB(huff_ltab1_2[t0+1][t1+1][t2+1][t3+1]);
WriteBits(hBitstream,codeWord,codeLength);
}
break;
case CODE_BOOK_3_NO:
for(i=0; i<width; i+=4) {
- sign=0;
- signLength=0;
- t0 = values[i+0];
-
+ sign=0;
+ signLength=0;
+ t0 = values[i+0];
+
if(t0 != 0){
signLength = signLength + 1;
- sign = sign << 1;
-
+ sign = sign << 1;
+
if(t0 < 0){
- sign|=1;
+ sign|=1;
t0=-t0;
}
}
- t1 = values[i+1];
-
+ t1 = values[i+1];
+
if(t1 != 0){
signLength = signLength + 1;
- sign = sign << 1;
-
+ sign = sign << 1;
+
if(t1 < 0){
- sign|=1;
+ sign|=1;
t1=-t1;
}
}
- t2 = values[i+2];
-
+ t2 = values[i+2];
+
if(t2 != 0){
signLength = signLength + 1;
- sign = sign << 1;
-
+ sign = sign << 1;
+
if(t2 < 0){
- sign|=1;
+ sign|=1;
t2=-t2;
}
}
- t3 = values[i+3];
+ t3 = values[i+3];
if(t3 != 0){
signLength = signLength + 1;
- sign = sign << 1;
-
+ sign = sign << 1;
+
if(t3 < 0){
- sign|=1;
+ sign|=1;
t3=-t3;
}
}
- codeWord = huff_ctab3[t0][t1][t2][t3];
- codeLength = HI_LTAB(huff_ltab3_4[t0][t1][t2][t3]);
+ codeWord = huff_ctab3[t0][t1][t2][t3];
+ codeLength = HI_LTAB(huff_ltab3_4[t0][t1][t2][t3]);
WriteBits(hBitstream,codeWord,codeLength);
WriteBits(hBitstream,sign,signLength);
}
@@ -585,107 +585,107 @@ Word16 codeValues(Word16 *values, Word16 width, Word16 codeBook, HANDLE_BIT_BUF
case CODE_BOOK_4_NO:
for(i=0; i<width; i+=4) {
- sign=0;
- signLength=0;
- t0 = values[i+0];
-
- if(t0 != 0){
+ sign=0;
+ signLength=0;
+ t0 = values[i+0];
+
+ if(t0 != 0){
signLength = signLength + 1;
- sign = sign << 1;
- if(t0 < 0){
- sign|=1;
- t0=-t0;
+ sign = sign << 1;
+ if(t0 < 0){
+ sign|=1;
+ t0=-t0;
}
- }
- t1 = values[i+1];
-
- if(t1 != 0){
+ }
+ t1 = values[i+1];
+
+ if(t1 != 0){
signLength = signLength + 1;
- sign = sign << 1;
-
- if(t1 < 0){
- sign|=1;
- t1=-t1;
- }
- }
- t2 = values[i+2];
-
- if(t2 != 0){
+ sign = sign << 1;
+
+ if(t1 < 0){
+ sign|=1;
+ t1=-t1;
+ }
+ }
+ t2 = values[i+2];
+
+ if(t2 != 0){
signLength = signLength + 1;
- sign = sign << 1;
-
- if(t2 < 0){
- sign|=1;
- t2=-t2;
- }
- }
- t3 = values[i+3];
-
- if(t3 != 0){
+ sign = sign << 1;
+
+ if(t2 < 0){
+ sign|=1;
+ t2=-t2;
+ }
+ }
+ t3 = values[i+3];
+
+ if(t3 != 0){
signLength = signLength + 1;
- sign = sign << 1;
-
- if(t3 < 0){
- sign|=1;
- t3=-t3;
- }
- }
- codeWord = huff_ctab4[t0][t1][t2][t3];
- codeLength = LO_LTAB(huff_ltab3_4[t0][t1][t2][t3]);
- WriteBits(hBitstream,codeWord,codeLength);
- WriteBits(hBitstream,sign,signLength);
- }
- break;
-
- case CODE_BOOK_5_NO:
- for(i=0; i<width; i+=2) {
- t0 = values[i+0];
- t1 = values[i+1];
- codeWord = huff_ctab5[t0+4][t1+4];
- codeLength = HI_LTAB(huff_ltab5_6[t0+4][t1+4]);
+ sign = sign << 1;
+
+ if(t3 < 0){
+ sign|=1;
+ t3=-t3;
+ }
+ }
+ codeWord = huff_ctab4[t0][t1][t2][t3];
+ codeLength = LO_LTAB(huff_ltab3_4[t0][t1][t2][t3]);
+ WriteBits(hBitstream,codeWord,codeLength);
+ WriteBits(hBitstream,sign,signLength);
+ }
+ break;
+
+ case CODE_BOOK_5_NO:
+ for(i=0; i<width; i+=2) {
+ t0 = values[i+0];
+ t1 = values[i+1];
+ codeWord = huff_ctab5[t0+4][t1+4];
+ codeLength = HI_LTAB(huff_ltab5_6[t0+4][t1+4]);
WriteBits(hBitstream,codeWord,codeLength);
}
break;
case CODE_BOOK_6_NO:
for(i=0; i<width; i+=2) {
- t0 = values[i+0];
- t1 = values[i+1];
- codeWord = huff_ctab6[t0+4][t1+4];
- codeLength = LO_LTAB(huff_ltab5_6[t0+4][t1+4]);
+ t0 = values[i+0];
+ t1 = values[i+1];
+ codeWord = huff_ctab6[t0+4][t1+4];
+ codeLength = LO_LTAB(huff_ltab5_6[t0+4][t1+4]);
WriteBits(hBitstream,codeWord,codeLength);
}
break;
case CODE_BOOK_7_NO:
for(i=0; i<width; i+=2){
- sign=0;
- signLength=0;
- t0 = values[i+0];
-
+ sign=0;
+ signLength=0;
+ t0 = values[i+0];
+
if(t0 != 0){
signLength = signLength + 1;
- sign = sign << 1;
-
+ sign = sign << 1;
+
if(t0 < 0){
- sign|=1;
+ sign|=1;
t0=-t0;
}
}
- t1 = values[i+1];
-
+ t1 = values[i+1];
+
if(t1 != 0){
signLength = signLength + 1;
- sign = sign << 1;
-
+ sign = sign << 1;
+
if(t1 < 0){
- sign|=1;
+ sign|=1;
t1=-t1;
}
}
- codeWord = huff_ctab7[t0][t1];
- codeLength = HI_LTAB(huff_ltab7_8[t0][t1]);
+ codeWord = huff_ctab7[t0][t1];
+ codeLength = HI_LTAB(huff_ltab7_8[t0][t1]);
WriteBits(hBitstream,codeWord,codeLength);
WriteBits(hBitstream,sign,signLength);
}
@@ -693,33 +693,33 @@ Word16 codeValues(Word16 *values, Word16 width, Word16 codeBook, HANDLE_BIT_BUF
case CODE_BOOK_8_NO:
for(i=0; i<width; i+=2) {
- sign=0;
- signLength=0;
- t0 = values[i+0];
-
- if(t0 != 0){
- signLength = signLength + 1;
- sign = sign << 1;
-
- if(t0 < 0){
- sign|=1;
- t0=-t0;
- }
- }
-
- t1 = values[i+1];
-
- if(t1 != 0){
- signLength = signLength + 1;
- sign = sign << 1;
-
- if(t1 < 0){
- sign|=1;
- t1=-t1;
- }
- }
- codeWord = huff_ctab8[t0][t1];
- codeLength = LO_LTAB(huff_ltab7_8[t0][t1]);
+ sign=0;
+ signLength=0;
+ t0 = values[i+0];
+
+ if(t0 != 0){
+ signLength = signLength + 1;
+ sign = sign << 1;
+
+ if(t0 < 0){
+ sign|=1;
+ t0=-t0;
+ }
+ }
+
+ t1 = values[i+1];
+
+ if(t1 != 0){
+ signLength = signLength + 1;
+ sign = sign << 1;
+
+ if(t1 < 0){
+ sign|=1;
+ t1=-t1;
+ }
+ }
+ codeWord = huff_ctab8[t0][t1];
+ codeLength = LO_LTAB(huff_ltab7_8[t0][t1]);
WriteBits(hBitstream,codeWord,codeLength);
WriteBits(hBitstream,sign,signLength);
}
@@ -727,33 +727,33 @@ Word16 codeValues(Word16 *values, Word16 width, Word16 codeBook, HANDLE_BIT_BUF
case CODE_BOOK_9_NO:
for(i=0; i<width; i+=2) {
- sign=0;
- signLength=0;
- t0 = values[i+0];
-
- if(t0 != 0){
- signLength = signLength + 1;
- sign = sign << 1;
-
- if(t0 < 0){
- sign|=1;
- t0=-t0;
- }
- }
-
- t1 = values[i+1];
-
- if(t1 != 0){
- signLength = signLength + 1;
- sign = sign << 1;
-
- if(t1 < 0){
- sign|=1;
- t1=-t1;
- }
- }
- codeWord = huff_ctab9[t0][t1];
- codeLength = HI_LTAB(huff_ltab9_10[t0][t1]);
+ sign=0;
+ signLength=0;
+ t0 = values[i+0];
+
+ if(t0 != 0){
+ signLength = signLength + 1;
+ sign = sign << 1;
+
+ if(t0 < 0){
+ sign|=1;
+ t0=-t0;
+ }
+ }
+
+ t1 = values[i+1];
+
+ if(t1 != 0){
+ signLength = signLength + 1;
+ sign = sign << 1;
+
+ if(t1 < 0){
+ sign|=1;
+ t1=-t1;
+ }
+ }
+ codeWord = huff_ctab9[t0][t1];
+ codeLength = HI_LTAB(huff_ltab9_10[t0][t1]);
WriteBits(hBitstream,codeWord,codeLength);
WriteBits(hBitstream,sign,signLength);
}
@@ -761,33 +761,33 @@ Word16 codeValues(Word16 *values, Word16 width, Word16 codeBook, HANDLE_BIT_BUF
case CODE_BOOK_10_NO:
for(i=0; i<width; i+=2) {
- sign=0;
- signLength=0;
- t0 = values[i+0];
-
- if(t0 != 0){
- signLength = signLength + 1;
- sign = sign << 1;
-
- if(t0 < 0){
- sign|=1;
- t0=-t0;
- }
- }
-
- t1 = values[i+1];
-
- if(t1 != 0){
- signLength = signLength + 1;
- sign = sign << 1;
-
- if(t1 < 0){
- sign|=1;
- t1=-t1;
- }
- }
- codeWord = huff_ctab10[t0][t1];
- codeLength = LO_LTAB(huff_ltab9_10[t0][t1]);
+ sign=0;
+ signLength=0;
+ t0 = values[i+0];
+
+ if(t0 != 0){
+ signLength = signLength + 1;
+ sign = sign << 1;
+
+ if(t0 < 0){
+ sign|=1;
+ t0=-t0;
+ }
+ }
+
+ t1 = values[i+1];
+
+ if(t1 != 0){
+ signLength = signLength + 1;
+ sign = sign << 1;
+
+ if(t1 < 0){
+ sign|=1;
+ t1=-t1;
+ }
+ }
+ codeWord = huff_ctab10[t0][t1];
+ codeLength = LO_LTAB(huff_ltab9_10[t0][t1]);
WriteBits(hBitstream,codeWord,codeLength);
WriteBits(hBitstream,sign,signLength);
}
@@ -795,45 +795,45 @@ Word16 codeValues(Word16 *values, Word16 width, Word16 codeBook, HANDLE_BIT_BUF
case CODE_BOOK_ESC_NO:
for(i=0; i<width; i+=2) {
- sign=0;
- signLength=0;
- t0 = values[i+0];
-
- if(t0 != 0){
- signLength = signLength + 1;
- sign = sign << 1;
-
- if(t0 < 0){
- sign|=1;
- t0=-t0;
- }
- }
-
- t1 = values[i+1];
-
- if(t1 != 0){
- signLength = signLength + 1;
- sign = sign << 1;
-
- if(t1 < 0){
- sign|=1;
- t1=-t1;
- }
- }
+ sign=0;
+ signLength=0;
+ t0 = values[i+0];
+
+ if(t0 != 0){
+ signLength = signLength + 1;
+ sign = sign << 1;
+
+ if(t0 < 0){
+ sign|=1;
+ t0=-t0;
+ }
+ }
+
+ t1 = values[i+1];
+
+ if(t1 != 0){
+ signLength = signLength + 1;
+ sign = sign << 1;
+
+ if(t1 < 0){
+ sign|=1;
+ t1=-t1;
+ }
+ }
t00 = min(t0,16);
t01 = min(t1,16);
- codeWord = huff_ctab11[t00][t01];
- codeLength = huff_ltab11[t00][t01];
+ codeWord = huff_ctab11[t00][t01];
+ codeLength = huff_ltab11[t00][t01];
WriteBits(hBitstream,codeWord,codeLength);
WriteBits(hBitstream,sign,signLength);
-
+
if(t0 >= 16){
Word16 n, p;
- n=0;
- p=t0;
+ n=0;
+ p=t0;
while(sub(p=(p >> 1), 16) >= 0){
-
+
WriteBits(hBitstream,1,1);
n = n + 1;
}
@@ -841,13 +841,13 @@ Word16 codeValues(Word16 *values, Word16 width, Word16 codeBook, HANDLE_BIT_BUF
n = n + 4;
WriteBits(hBitstream,(t0 - (1 << n)),n);
}
-
+
if(t1 >= 16){
Word16 n, p;
- n=0;
- p=t1;
+ n=0;
+ p=t1;
while(sub(p=(p >> 1), 16) >= 0){
-
+
WriteBits(hBitstream,1,1);
n = n + 1;
}
@@ -871,15 +871,15 @@ Word16 bitCountScalefactorDelta(Word16 delta)
Word16 codeScalefactorDelta(Word16 delta, HANDLE_BIT_BUF hBitstream)
{
- Word32 codeWord;
+ Word32 codeWord;
Word16 codeLength;
-
-
+
+
if(delta > CODE_BOOK_SCF_LAV || delta < -CODE_BOOK_SCF_LAV)
return(1);
-
- codeWord = huff_ctabscf[delta + CODE_BOOK_SCF_LAV];
- codeLength = huff_ltabscf[delta + CODE_BOOK_SCF_LAV];
+
+ codeWord = huff_ctabscf[delta + CODE_BOOK_SCF_LAV];
+ codeLength = huff_ltabscf[delta + CODE_BOOK_SCF_LAV];
WriteBits(hBitstream,codeWord,codeLength);
return(0);
}
generated by cgit v1.1 at 2024-05-28 02:30:00 +0000