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new ratecontrol code

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Originally committed as revision 862 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer
2002-08-25 21:19:50 +00:00
parent 7806197db2
commit 3aa102be84
9 changed files with 966 additions and 288 deletions
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57
libavcodec/dsputil.c
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@@ -32,6 +32,8 @@ void (*put_pixels_clamped)(const DCTELEM *block, UINT8 *pixels, int line_size);
void (*add_pixels_clamped)(const DCTELEM *block, UINT8 *pixels, int line_size);
void (*gmc1)(UINT8 *dst, UINT8 *src, int srcStride, int h, int x16, int y16, int rounder);
void (*clear_blocks)(DCTELEM *blocks);
int (*pix_sum)(UINT8 * pix, int line_size);
int (*pix_norm1)(UINT8 * pix, int line_size);
op_pixels_abs_func pix_abs16x16;
op_pixels_abs_func pix_abs16x16_x2;
@@ -159,6 +161,52 @@ static void build_zigzag_end(void)
}
}
int pix_sum_c(UINT8 * pix, int line_size)
{
int s, i, j;
s = 0;
for (i = 0; i < 16; i++) {
for (j = 0; j < 16; j += 8) {
s += pix[0];
s += pix[1];
s += pix[2];
s += pix[3];
s += pix[4];
s += pix[5];
s += pix[6];
s += pix[7];
pix += 8;
}
pix += line_size - 16;
}
return s;
}
int pix_norm1_c(UINT8 * pix, int line_size)
{
int s, i, j;
UINT32 *sq = squareTbl + 256;
s = 0;
for (i = 0; i < 16; i++) {
for (j = 0; j < 16; j += 8) {
s += sq[pix[0]];
s += sq[pix[1]];
s += sq[pix[2]];
s += sq[pix[3]];
s += sq[pix[4]];
s += sq[pix[5]];
s += sq[pix[6]];
s += sq[pix[7]];
pix += 8;
}
pix += line_size - 16;
}
return s;
}
void get_pixels_c(DCTELEM *restrict block, const UINT8 *pixels, int line_size)
{
int i;
@@ -241,7 +289,6 @@ void add_pixels_clamped_c(const DCTELEM *block, UINT8 *restrict pixels,
block += 8;
}
}
#if 0
#define PIXOP2(OPNAME, OP) \
@@ -569,7 +616,6 @@ void (*OPNAME ## _no_rnd_pixels_tab[4])(uint8_t *block, const uint8_t *pixels, i
};
#define op_avg(a, b) a = ( ((a)|(b)) - ((((a)^(b))&0xFEFEFEFEUL)>>1) )
#endif
#define op_put(a, b) a = b
PIXOP2(avg, op_avg)
@@ -684,8 +730,11 @@ void (*OPNAME ## _pixels_tab[4])(BTYPE *block, const UINT8 *pixels, int line_siz
#define op_avg(a, b) a = avg2(a, b)
#define op_sub(a, b) a -= b
#define op_put(a, b) a = b
PIXOP(DCTELEM, sub, op_sub, 8)
PIXOP(uint8_t, avg, op_avg, line_size)
PIXOP(uint8_t, put, op_put, line_size)
/* not rounding primitives */
#undef avg2
@@ -693,6 +742,8 @@ PIXOP(DCTELEM, sub, op_sub, 8)
#define avg2(a,b) ((a+b)>>1)
#define avg4(a,b,c,d) ((a+b+c+d+1)>>2)
PIXOP(uint8_t, avg_no_rnd, op_avg, line_size)
PIXOP(uint8_t, put_no_rnd, op_put, line_size)
/* motion estimation */
#undef avg2
@@ -1261,6 +1312,8 @@ void dsputil_init(void)
add_pixels_clamped = add_pixels_clamped_c;
gmc1= gmc1_c;
clear_blocks= clear_blocks_c;
pix_sum= pix_sum_c;
pix_norm1= pix_norm1_c;
pix_abs16x16 = pix_abs16x16_c;
pix_abs16x16_x2 = pix_abs16x16_x2_c;