Free a memory block which has been allocated with av_malloc(z)() or
av_realloc().
@param ptr Pointer to the memory block which should be freed.
@note ptr = NULL is explicitly allowed.
@note It is recommended that you use av_freep() instead.
@see av_freep()
Free a memory block which has been allocated with av_malloc(z)() or av_realloc(). @param ptr Pointer to the memory block which should be freed. @note ptr = NULL is explicitly allowed. @note It is recommended that you use av_freep() instead. @see av_freep()