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Extract rotation in MOV metadata

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Dave Badia 2011-06-10 21:18:26 +02:00 committed by Michael Niedermayer
parent 0fd82fedc9
commit d3cef0a85b
1 changed files with 4 additions and 0 deletions
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4
libavformat/mov.c
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@ -1926,6 +1926,10 @@ static int mov_read_tkhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
sc->width = width >> 16;
sc->height = height >> 16;
if (display_matrix[0][0] == -65536 && display_matrix[1][1] == -65536) {
av_metadata_set2(&st->metadata, "rotate", "180", 0);
}
// transform the display width/height according to the matrix
// skip this if the display matrix is the default identity matrix
// or if it is rotating the picture, ex iPhone 3GS