=> 0x7f643f2099a1 <avio_close+17>:	mov    0x20(%rdi),%rbp
   0x7f643f2099a5 <avio_close+21>:	mov    (%rdi),%rdi
   0x7f643f2099a8 <avio_close+24>:	callq  0x7f643f1f2ac0 <av_free@plt>
   0x7f643f2099ad <avio_close+29>:	mov    %rbx,%rdi
   0x7f643f2099b0 <avio_close+32>:	callq  0x7f643f1f2ac0 <av_free@plt>
   0x7f643f2099b5 <avio_close+37>:	mov    %rbp,%rdi
   0x7f643f2099b8 <avio_close+40>:	mov    0x8(%rsp),%rbx
   0x7f643f2099bd <avio_close+45>:	mov    0x10(%rsp),%rbp
   0x7f643f2099c2 <avio_close+50>:	add    $0x18,%rsp
   0x7f643f2099c6 <avio_close+54>:	jmpq   0x7f643f2070a0
   0x7f643f2099cb:	nopl   0x0(%rax,%rax,1)
   0x7f643f2099d0 <url_fclose>:	jmpq   0x7f643f209990 <avio_close>
   0x7f643f2099d5:	data32 nopw %cs:0x0(%rax,%rax,1)
   0x7f643f2099e0 <url_fileno>:	mov    0x20(%rdi),%rax
   0x7f643f2099e4 <url_fileno+4>:	retq   
   0x7f643f2099e5:	data32 nopw %cs:0x0(%rax,%rax,1)