- avio_wb32(pb, 0x00010000); /* reserved */
- avio_wb32(pb, 0x0); /* reserved */
- avio_wb32(pb, 0x0); /* reserved */
- avio_wb32(pb, 0x0); /* reserved */
- avio_wb32(pb, 0x00010000); /* reserved */
- avio_wb32(pb, 0x0); /* reserved */
- avio_wb32(pb, 0x0); /* reserved */
- avio_wb32(pb, 0x0); /* reserved */
- avio_wb32(pb, 0x40000000); /* reserved */
-
+ if (st && st->metadata) {
+ AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
+ rotation = (rot && rot->value) ? atoi(rot->value) : 0;
+ }
+ if (rotation == 90) {
+ write_matrix(pb, 0, 1, -1, 0, track->enc->height, 0);
+ } else if (rotation == 180) {
+ write_matrix(pb, -1, 0, 0, -1, track->enc->width, track->enc->height);
+ } else if (rotation == 270) {
+ write_matrix(pb, 0, -1, 1, 0, 0, track->enc->width);
+ } else {
+ write_matrix(pb, 1, 0, 0, 1, 0, 0);
+ }