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avfilter/vf_v360: simplify code which handles interpolation points

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pull/334/head
Paul B Mahol 5 years ago
parent 9b22254331
commit 31ecfa95fb
1 changed files with 74 additions and 74 deletions
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  1. 148
      libavfilter/vf_v360.c

148
libavfilter/vf_v360.c
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@ -1279,10 +1279,10 @@ static int xyz_to_cube3x2(const V360Context *s,
*du = uf - ui;
*dv = vf - vi;
for (int i = -1; i < 3; i++) {
for (int j = -1; j < 3; j++) {
int new_ui = ui + j;
int new_vi = vi + i;
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
int new_ui = ui + j - 1;
int new_vi = vi + i - 1;
int u_shift, v_shift;
int new_ewi, new_ehi;
@ -1316,8 +1316,8 @@ static int xyz_to_cube3x2(const V360Context *s,
new_vi = av_clip(lrintf(0.5f * new_ehi * (vf + 1.f)), 0, new_ehi - 1);
}
us[i + 1][j + 1] = u_shift + new_ui;
vs[i + 1][j + 1] = v_shift + new_vi;
us[i][j] = u_shift + new_ui;
vs[i][j] = v_shift + new_vi;
}
}
@ -1432,10 +1432,10 @@ static int xyz_to_cube1x6(const V360Context *s,
*du = uf - ui;
*dv = vf - vi;
for (int i = -1; i < 3; i++) {
for (int j = -1; j < 3; j++) {
int new_ui = ui + j;
int new_vi = vi + i;
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
int new_ui = ui + j - 1;
int new_vi = vi + i - 1;
int v_shift;
int new_ehi;
@ -1462,8 +1462,8 @@ static int xyz_to_cube1x6(const V360Context *s,
new_vi = av_clip(lrintf(0.5f * new_ehi * (vf + 1.f)), 0, new_ehi - 1);
}
us[i + 1][j + 1] = new_ui;
vs[i + 1][j + 1] = v_shift + new_vi;
us[i][j] = new_ui;
vs[i][j] = v_shift + new_vi;
}
}
@ -1512,10 +1512,10 @@ static int xyz_to_cube6x1(const V360Context *s,
*du = uf - ui;
*dv = vf - vi;
for (int i = -1; i < 3; i++) {
for (int j = -1; j < 3; j++) {
int new_ui = ui + j;
int new_vi = vi + i;
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
int new_ui = ui + j - 1;
int new_vi = vi + i - 1;
int u_shift;
int new_ewi;
@ -1542,8 +1542,8 @@ static int xyz_to_cube6x1(const V360Context *s,
new_vi = av_clip(lrintf(0.5f * ehi * (vf + 1.f)), 0, ehi - 1);
}
us[i + 1][j + 1] = u_shift + new_ui;
vs[i + 1][j + 1] = new_vi;
us[i][j] = u_shift + new_ui;
vs[i][j] = new_vi;
}
}
@ -1671,10 +1671,10 @@ static int xyz_to_stereographic(const V360Context *s,
*du = visible ? uf - ui : 0.f;
*dv = visible ? vf - vi : 0.f;
for (int i = -1; i < 3; i++) {
for (int j = -1; j < 3; j++) {
us[i + 1][j + 1] = visible ? av_clip(ui + j, 0, width - 1) : 0;
vs[i + 1][j + 1] = visible ? av_clip(vi + i, 0, height - 1) : 0;
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
us[i][j] = visible ? av_clip(ui + j - 1, 0, width - 1) : 0;
vs[i][j] = visible ? av_clip(vi + i - 1, 0, height - 1) : 0;
}
}
@ -1710,10 +1710,10 @@ static int xyz_to_equirect(const V360Context *s,
*du = uf - ui;
*dv = vf - vi;
for (int i = -1; i < 3; i++) {
for (int j = -1; j < 3; j++) {
us[i + 1][j + 1] = mod(ui + j, width);
vs[i + 1][j + 1] = av_clip(vi + i, 0, height - 1);
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
us[i][j] = mod(ui + j - 1, width);
vs[i][j] = av_clip(vi + i - 1, 0, height - 1);
}
}
@ -1774,10 +1774,10 @@ static int xyz_to_flat(const V360Context *s,
*du = uf - ui;
*dv = vf - vi;
for (int i = -1; i < 3; i++) {
for (int j = -1; j < 3; j++) {
us[i + 1][j + 1] = visible ? av_clip(ui + j, 0, width - 1) : 0;
vs[i + 1][j + 1] = visible ? av_clip(vi + i, 0, height - 1) : 0;
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
us[i][j] = visible ? av_clip(ui + j - 1, 0, width - 1) : 0;
vs[i][j] = visible ? av_clip(vi + i - 1, 0, height - 1) : 0;
}
}
@ -1813,10 +1813,10 @@ static int xyz_to_mercator(const V360Context *s,
*du = uf - ui;
*dv = vf - vi;
for (int i = -1; i < 3; i++) {
for (int j = -1; j < 3; j++) {
us[i + 1][j + 1] = av_clip(ui + j, 0, width - 1);
vs[i + 1][j + 1] = av_clip(vi + i, 0, height - 1);
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
us[i][j] = av_clip(ui + j - 1, 0, width - 1);
vs[i][j] = av_clip(vi + i - 1, 0, height - 1);
}
}
@ -1883,10 +1883,10 @@ static int xyz_to_ball(const V360Context *s,
*du = uf - ui;
*dv = vf - vi;
for (int i = -1; i < 3; i++) {
for (int j = -1; j < 3; j++) {
us[i + 1][j + 1] = av_clip(ui + j, 0, width - 1);
vs[i + 1][j + 1] = av_clip(vi + i, 0, height - 1);
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
us[i][j] = av_clip(ui + j - 1, 0, width - 1);
vs[i][j] = av_clip(vi + i - 1, 0, height - 1);
}
}
@ -1998,10 +1998,10 @@ static int xyz_to_hammer(const V360Context *s,
*du = uf - ui;
*dv = vf - vi;
for (int i = -1; i < 3; i++) {
for (int j = -1; j < 3; j++) {
us[i + 1][j + 1] = av_clip(ui + j, 0, width - 1);
vs[i + 1][j + 1] = av_clip(vi + i, 0, height - 1);
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
us[i][j] = av_clip(ui + j - 1, 0, width - 1);
vs[i][j] = av_clip(vi + i - 1, 0, height - 1);
}
}
@ -2068,10 +2068,10 @@ static int xyz_to_sinusoidal(const V360Context *s,
*du = uf - ui;
*dv = vf - vi;
for (int i = -1; i < 3; i++) {
for (int j = -1; j < 3; j++) {
us[i + 1][j + 1] = av_clip(ui + j, 0, width - 1);
vs[i + 1][j + 1] = av_clip(vi + i, 0, height - 1);
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
us[i][j] = av_clip(ui + j - 1, 0, width - 1);
vs[i][j] = av_clip(vi + i - 1, 0, height - 1);
}
}
@ -2319,10 +2319,10 @@ static int xyz_to_eac(const V360Context *s,
*du = uf - ui;
*dv = vf - vi;
for (int i = -1; i < 3; i++) {
for (int j = -1; j < 3; j++) {
us[i + 1][j + 1] = av_clip(ui + j, 0, width - 1);
vs[i + 1][j + 1] = av_clip(vi + i, 0, height - 1);
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
us[i][j] = av_clip(ui + j - 1, 0, width - 1);
vs[i][j] = av_clip(vi + i - 1, 0, height - 1);
}
}
@ -2469,10 +2469,10 @@ static int xyz_to_fisheye(const V360Context *s,
*du = visible ? uf - ui : 0.f;
*dv = visible ? vf - vi : 0.f;
for (int i = -1; i < 3; i++) {
for (int j = -1; j < 3; j++) {
us[i + 1][j + 1] = visible ? av_clip(ui + j, 0, width - 1) : 0;
vs[i + 1][j + 1] = visible ? av_clip(vi + i, 0, height - 1) : 0;
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
us[i][j] = visible ? av_clip(ui + j - 1, 0, width - 1) : 0;
vs[i][j] = visible ? av_clip(vi + i - 1, 0, height - 1) : 0;
}
}
@ -2614,10 +2614,10 @@ static int xyz_to_cylindrical(const V360Context *s,
*du = uf - ui;
*dv = vf - vi;
for (int i = -1; i < 3; i++) {
for (int j = -1; j < 3; j++) {
us[i + 1][j + 1] = visible ? av_clip(ui + j, 0, width - 1) : 0;
vs[i + 1][j + 1] = visible ? av_clip(vi + i, 0, height - 1) : 0;
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
us[i][j] = visible ? av_clip(ui + j - 1, 0, width - 1) : 0;
vs[i][j] = visible ? av_clip(vi + i - 1, 0, height - 1) : 0;
}
}
@ -2747,10 +2747,10 @@ static int xyz_to_tetrahedron(const V360Context *s,
*du = uf - ui;
*dv = vf - vi;
for (int i = -1; i < 3; i++) {
for (int j = -1; j < 3; j++) {
us[i + 1][j + 1] = mod(ui + j, width);
vs[i + 1][j + 1] = av_clip(vi + i, 0, height - 1);
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
us[i][j] = mod(ui + j - 1, width);
vs[i][j] = av_clip(vi + i - 1, 0, height - 1);
}
}
@ -2842,10 +2842,10 @@ static int xyz_to_dfisheye(const V360Context *s,
*du = uf - ui;
*dv = vf - vi;
for (int i = -1; i < 3; i++) {
for (int j = -1; j < 3; j++) {
us[i + 1][j + 1] = av_clip(u_shift + ui + j, 0, width - 1);
vs[i + 1][j + 1] = av_clip( vi + i, 0, height - 1);
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
us[i][j] = av_clip(u_shift + ui + j - 1, 0, width - 1);
vs[i][j] = av_clip( vi + i - 1, 0, height - 1);
}
}
@ -2989,10 +2989,10 @@ static int xyz_to_barrel(const V360Context *s,
*du = uf - ui;
*dv = vf - vi;
for (int i = -1; i < 3; i++) {
for (int j = -1; j < 3; j++) {
us[i + 1][j + 1] = u_shift + av_clip(ui + j, 0, ew - 1);
vs[i + 1][j + 1] = v_shift + av_clip(vi + i, 0, eh - 1);
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
us[i][j] = u_shift + av_clip(ui + j - 1, 0, ew - 1);
vs[i][j] = v_shift + av_clip(vi + i - 1, 0, eh - 1);
}
}
@ -3088,10 +3088,10 @@ static int xyz_to_barrelsplit(const V360Context *s,
*du = uf - ui;
*dv = vf - vi;
for (int i = -1; i < 3; i++) {
for (int j = -1; j < 3; j++) {
us[i + 1][j + 1] = u_shift + av_clip(ui + j, 0, ew - 1);
vs[i + 1][j + 1] = v_shift + av_clip(vi + i, 0, eh - 1);
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
us[i][j] = u_shift + av_clip(ui + j - 1, 0, ew - 1);
vs[i][j] = v_shift + av_clip(vi + i - 1, 0, eh - 1);
}
}

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