#6  0x000055555612c976 in stream_format_audio::serialize (this=0x7fffb85122a0, out=...) at structure.cpp:69
#7  0x000055555612e5cd in stream_header_list<stream_format_audio>::serialize (this=0x7fffb8512280, out=...) at structure.cpp:123
#8  0x000055555612d4fb in header_list::serialize (this=0x7fffb85121f8, out=...) at structure.cpp:168
#9  0x000055555612ded8 in avi_file_structure::serialize (this=0x7fffb85121f8) at structure.cpp:258
#10 0x000055555612e168 in avi_file_structure::finish_avi (this=0x7fffb85121f8) at structure.cpp:280