ffmpeg | branch: master | Paul B Mahol <one...@gmail.com> | Wed Mar 25 13:38:01 2020 +0100| [0b4389753035c9a69116ea4a4a8caee213ed7c24] | committer: Paul B Mahol
avfilter/vf_v360: fix hfov/vfov calculation from dfov for sg projection > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=0b4389753035c9a69116ea4a4a8caee213ed7c24 --- libavfilter/vf_v360.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/libavfilter/vf_v360.c b/libavfilter/vf_v360.c index ae94354212..fe0c9f3c4d 100644 --- a/libavfilter/vf_v360.c +++ b/libavfilter/vf_v360.c @@ -3542,6 +3542,15 @@ static int allocate_plane(V360Context *s, int sizeof_uv, int sizeof_ker, int siz static void fov_from_dfov(int format, float d_fov, float w, float h, float *h_fov, float *v_fov) { switch (format) { + case STEREOGRAPHIC: + { + const float d = 0.5f * hypotf(w, h); + const float l = d / (tanf(d_fov * M_PI / 720.f)); + + *h_fov = 2.f * atan2f(w * 0.5f, l) * 360.f / M_PI; + *v_fov = 2.f * atan2f(h * 0.5f, l) * 360.f / M_PI; + } + break; case FISHEYE: { const float d = 0.5f * hypotf(w, h); _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
