On 3/9/18, Paul B Mahol <one...@gmail.com> wrote: > On 3/9/18, Hazem Ashmawy <hazem.s.ashm...@gmail.com> wrote: >> Add filter to convert between various panorama projections. It supports >> Equirectangular and Cubemaps (3x2 and 6x1 cubemap layouts). >> >> commit a8d80408bd9d99542cc29f30d7e6b00771846029 >> Author: Hazem Ashmawy <hazem.s.ashm...@gmail.com> >> Date: Thu Mar 8 10:09:36 2018 +0200 >> >> avfilter: add convertion to/from cubemap 6x1 >> >> Signed-off-by: Hazem Ashmawy <hazem.s.ashm...@gmail.com> >> >> commit f9f6a6cc0ceb1a4e749041658b7a441696b82588 >> Author: Paul B Mahol <one...@gmail.com> >> Date: Thu Dec 3 21:15:13 2015 +0100 >> >> avfilter: add panorama filter >> >> Signed-off-by: Paul B Mahol <one...@gmail.com> >> >> Signed-off-by: Hazem Ashmawy <hazem.s.ashm...@gmail.com> >> --- >> libavfilter/Makefile | 1 + >> libavfilter/allfilters.c | 1 + >> libavfilter/vf_panorama.c | 553 >> ++++++++++++++++++++++++++++++++++++++++++++++ >> 3 files changed, 555 insertions(+) >> create mode 100644 libavfilter/vf_panorama.c >> > > Here is partial change for converting 3x2 cubemap as given by latest > youtube videos to > equirectangular projection:
Should I modify cube faces order to match the one specified here too? https://github.com/google/spatial-media/blob/master/docs/spherical-video-v2-rfc.md#semantics-3 > > | diff --git a/libavfilter/vf_panorama.c b/libavfilter/vf_panorama.c > | index 7d9de5b62c..4d43fc0dd5 100644 > | --- a/libavfilter/vf_panorama.c > | +++ b/libavfilter/vf_panorama.c > | @@ -394,9 +394,9 @@ static int config_output(AVFilterLink *outlink) > | > | phi_threshold = atan2(1., 1. / cos(theta_norm)); > | if (phi > phi_threshold) { > | - face = DOWN; > | - } else if (phi < -phi_threshold) { > | face = TOP; > | + } else if (phi < -phi_threshold) { > | + face = DOWN; > | } else { > | ; > | } > | @@ -411,14 +411,14 @@ static int config_output(AVFilterLink *outlink) > | case RIGHT: > | locate(z, y, x, M_PI_2, rw, rh, &ox, &oy); > | break; > | - case TOP: > | - locate(y, z, x, M_PI, rw, rh, &ox, &oy); > | + case DOWN: > | + locate(y, z, x, M_PI_2, rw, rh, &ox, &oy); > | break; > | case BACK: > | - locate(x, y, z,-M_PI_2, rw, rh, &ox, &oy); > | + locate(x, y, z, 0, rw, rh, &ox, &oy); > | break; > | - case DOWN: > | - locate(y, x, z,-M_PI_2, rw, rh, &ox, &oy); > | + case TOP: > | + locate(y, x, z, M_PI , rw, rh, &ox, &oy); > | break; > | } > | > > Could you incorporate this? > And also update all other conversions so thay match with this one? Sure, I'll work on this. > _______________________________________________ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-devel > _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
