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only set par if it does not indicates a rotation, ex iphone 3GS

Originally committed as revision 19271 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Baptiste Coudurier 2009-06-25 00:17:47 +00:00
parent 91d19d471b
commit d862fce758

View File

@ -1671,13 +1671,16 @@ static int mov_read_tkhd(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
sc->width = width >> 16;
sc->height = height >> 16;
//transform the display width/height according to the matrix
// 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
// to keep the same scale, use [width height 1<<16]
if (width && height &&
(display_matrix[0][0] != 65536 || display_matrix[0][1] ||
display_matrix[1][0] || display_matrix[1][1] != 65536 ||
display_matrix[2][0] || display_matrix[2][1])) {
((display_matrix[0][0] != 65536 ||
display_matrix[1][1] != 65536) &&
!display_matrix[0][1] &&
!display_matrix[1][0] &&
!display_matrix[2][0] && !display_matrix[2][1])) {
for (i = 0; i < 2; i++)
disp_transform[i] =
(int64_t) width * display_matrix[0][i] +