#0  0x00007ffff7bc8c32 in pthread_mutex_lock () from /lib64/libpthread.so.0
#1  0x0000000000462e23 in packet_queue_get (block=0, pkt=0x7fffffffce10, q=0x1716280) at libavdevice/bmd_dec.c:119
#2  bmd_read_packet (s=<optimized out>, pkt=0x7fffffffce10) at libavdevice/bmd_dec.c:382
#3  0x00000000005522c2 in ff_read_packet (s=s@entry=0x17156a0, pkt=pkt@entry=0x7fffffffce10) at libavformat/utils.c:412
#4  0x0000000000553dd1 in read_frame_internal (s=s@entry=0x17156a0, pkt=pkt@entry=0x7fffffffcef0) at libavformat/utils.c:897
#5  0x000000000055606c in avformat_find_stream_info (ic=0x17156a0, options=0x1721bc0) at libavformat/utils.c:2151
#6  0x000000000045b8a1 in open_input_file (o=o@entry=0x7fffffffd2e0, filename=<optimized out>) at avconv_opt.c:751
#7  0x000000000045cae3 in open_files (l=0x16ff898, l=0x16ff898, open_file=0x45b630 <open_input_file>, inout=0xb9bf1c "input") at avconv_opt.c:2215
#8  avconv_parse_options (argc=argc@entry=53, argv=argv@entry=0x7fffffffdbb8) at avconv_opt.c:2252
#9  0x000000000044f914 in main (argc=53, argv=0x7fffffffdbb8) at avconv.c:2791