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avformat/matroskaenc: Fix writing AV_SPHERICAL_EQUIRECTANGULAR

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According to the documentation, the ISOBMFF 'equi' box must
be present for equirectangular projections.

Reviewed-by: Hendrik Leppkes <h.leppkes@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2022-01-20 16:33:17 +01:00
parent 0f5fd44dc9
commit 7512293cf9
1 changed files with 11 additions and 7 deletions
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18
libavformat/matroskaenc.c
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@ -1305,17 +1305,21 @@ static void mkv_write_video_projection(AVFormatContext *s, EbmlWriter *writer,
switch (spherical->projection) {
case AV_SPHERICAL_EQUIRECTANGULAR:
ebml_writer_add_uint(writer, MATROSKA_ID_VIDEOPROJECTIONTYPE,
MATROSKA_VIDEO_PROJECTION_TYPE_EQUIRECTANGULAR);
break;
case AV_SPHERICAL_EQUIRECTANGULAR_TILE:
ebml_writer_add_uint(writer, MATROSKA_ID_VIDEOPROJECTIONTYPE,
MATROSKA_VIDEO_PROJECTION_TYPE_EQUIRECTANGULAR);
AV_WB32(private, 0); // version + flags
AV_WB32(private + 4, spherical->bound_top);
AV_WB32(private + 8, spherical->bound_bottom);
AV_WB32(private + 12, spherical->bound_left);
AV_WB32(private + 16, spherical->bound_right);
if (spherical->projection == AV_SPHERICAL_EQUIRECTANGULAR) {
AV_WB32(private + 4, 0);
AV_WB32(private + 8, 0);
AV_WB32(private + 12, 0);
AV_WB32(private + 16, 0);
} else {
AV_WB32(private + 4, spherical->bound_top);
AV_WB32(private + 8, spherical->bound_bottom);
AV_WB32(private + 12, spherical->bound_left);
AV_WB32(private + 16, spherical->bound_right);
}
ebml_writer_add_bin(writer, MATROSKA_ID_VIDEOPROJECTIONPRIVATE,
private, 20);
break;