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avfilter/vf_v360: add partial size setup for flat

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Other part of size is calculated from both available horizontal
and vertical FOV and given one size component.
This commit is contained in:
Paul B Mahol 2020-02-29 20:22:37 +01:00
parent 3733a6bc20
commit f707c84b8b
1 changed files with 9 additions and 1 deletions
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10
libavfilter/vf_v360.c
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@ -3790,7 +3790,15 @@ static int config_output(AVFilterLink *outlink)
}
// Override resolution with user values if specified
if (s->width > 0 && s->height > 0) {
if (s->width > 0 && s->height <= 0 && s->h_fov > 0.f && s->v_fov > 0.f &&
s->out == FLAT && s->d_fov == 0.f) {
w = s->width;
h = w / tanf(s->h_fov * M_PI / 360.f) * tanf(s->v_fov * M_PI / 360.f);
} else if (s->width <= 0 && s->height > 0 && s->h_fov > 0.f && s->v_fov > 0.f &&
s->out == FLAT && s->d_fov == 0.f) {
h = s->height;
w = h / tanf(s->v_fov * M_PI / 360.f) * tanf(s->h_fov * M_PI / 360.f);
} else if (s->width > 0 && s->height > 0) {
w = s->width;
h = s->height;
} else if (s->width > 0 || s->height > 0) {