API changes, most recent first:
+2012-11-25 - xxxxxxx - lavu 52.9.100 - opt.h
+ Add the following convenience functions to opt.h:
+ av_opt_get_image_size
+ av_opt_get_pixel_fmt
+ av_opt_get_sample_fmt
+ av_opt_set_image_size
+ av_opt_set_pixel_fmt
+ av_opt_set_sample_fmt
+
2012-11-17 - xxxxxxx - lavu 52.8.100 - bprint.h
Add av_bprint_strftime().