a50b756280
Its documentation states that it is allocated/freed by the caller, but it is declared as an AV_OPT_TYPE_STRING AVOption. Since 367732832faaf1bac4ece37cf7fef8c911e16312 the AVOptions system frees strings automatically. This can be considered an API break, since it won't work when the caller doesn't use av_malloc() to allocate the memory or wants to use the string after closing the codec. Since there is not much value in this field being an AVOption, the best solution is to remove it from the options table.
Libav README ------------ 1) Documentation ---------------- * Read the documentation in the doc/ directory. 2) Licensing ------------ * See the LICENSE file.