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Code Issues Releases Activity

avfilter/vf_v360: support transposed input/output

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This commit is contained in:
Paul B Mahol 2019-09-07 16:32:16 +02:00
parent 12b909ba31
commit a06d70350b
3 changed files with 26 additions and 5 deletions
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6
doc/filters.texi
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@ -18084,6 +18084,12 @@ Default value is @b{@samp{ypr}}.
@item d_flip
Flip the output video horizontally/vertically/in-depth. Boolean values.
@item in_trans
Set if input video is transposed. Boolean value, by default disabled.
@item out_trans
Set if output video needs to be transposed. Boolean value, by default disabled.
@end table
@subsection Examples

1
libavfilter/v360.h
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@ -99,6 +99,7 @@ typedef struct V360Context {
float yaw, pitch, roll;
int h_flip, v_flip, d_flip;
int in_transpose, out_transpose;
float h_fov, v_fov;
float flat_range[3];

24
libavfilter/vf_v360.c
View File

@ -93,9 +93,11 @@ static const AVOption v360_options[] = {
{ "rorder", "rotation order", OFFSET(rorder), AV_OPT_TYPE_STRING, {.str="ypr"}, 0, 0, FLAGS, "rorder"},
{ "h_fov", "horizontal field of view", OFFSET(h_fov), AV_OPT_TYPE_FLOAT, {.dbl=90.f}, 0.f, 180.f, FLAGS, "h_fov"},
{ "v_fov", "vertical field of view", OFFSET(v_fov), AV_OPT_TYPE_FLOAT, {.dbl=45.f}, 0.f, 90.f, FLAGS, "v_fov"},
{ "h_flip", "flip video horizontally", OFFSET(h_flip), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS, "h_flip"},
{ "v_flip", "flip video vertically", OFFSET(v_flip), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS, "v_flip"},
{ "d_flip", "flip video indepth", OFFSET(d_flip), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS, "d_flip"},
{ "h_flip", "flip out video horizontally", OFFSET(h_flip), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS, "h_flip"},
{ "v_flip", "flip out video vertically", OFFSET(v_flip), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS, "v_flip"},
{ "d_flip", "flip out video indepth", OFFSET(d_flip), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS, "d_flip"},
{ "in_trans", "transpose video input", OFFSET(in_transpose), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS, "in_transpose"},
{ "out_trans", "transpose video output", OFFSET(out_transpose), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS, "out_transpose"},
{ NULL }
};
@ -2165,6 +2167,12 @@ static int config_output(AVFilterLink *outlink)
} else if (s->width > 0 || s->height > 0) {
av_log(ctx, AV_LOG_ERROR, "Both width and height values should be specified.\n");
return AVERROR(EINVAL);
} else {
if (s->out_transpose)
FFSWAP(int, w, h);
if (s->in_transpose)
FFSWAP(int, w, h);
}
s->planeheight[1] = s->planeheight[2] = FF_CEIL_RSHIFT(h, desc->log2_chroma_h);
@ -2223,10 +2231,16 @@ static int config_output(AVFilterLink *outlink)
uint16_t *v = s->v[p] + (j * width + i) * elements;
int16_t *ker = s->ker[p] + (j * width + i) * elements;
out_transform(s, i, j, width, height, vec);
if (s->out_transpose)
out_transform(s, j, i, height, width, vec);
else
out_transform(s, i, j, width, height, vec);
rotate(rot_mat, vec);
mirror(mirror_modifier, vec);
in_transform(s, vec, in_width, in_height, r_tmp.u, r_tmp.v, &du, &dv);
if (s->in_transpose)
in_transform(s, vec, in_height, in_width, r_tmp.v, r_tmp.u, &du, &dv);
else
in_transform(s, vec, in_width, in_height, r_tmp.u, r_tmp.v, &du, &dv);
calculate_kernel(du, dv, &r_tmp, u, v, ker);
}
}