Breakpoint 1, ffio_set_buf_size (s=s@entry=0x646fe0, buf_size=1206) at libavformat/aviobuf.c:906
906     {
(gdb) where
#0  ffio_set_buf_size (s=s@entry=0x646fe0, buf_size=1206) at libavformat/aviobuf.c:906
#1  0x00007ffff2dd5a93 in fill_buffer (s=0x646fe0) at libavformat/aviobuf.c:481
#2  avio_feof (s=s@entry=0x646fe0) at libavformat/aviobuf.c:317
#3  0x00007ffff2dd6008 in ffio_read_partial (s=0x646fe0, buf=0x645fa0 "\200_d", size=size@entry=1024) at libavformat/aviobuf.c:651
#4  0x00007ffff2de0faa in ff_raw_read_partial_packet (s=0x646480, pkt=0x7fffffffda20) at libavformat/rawdec.c:46
#5  0x00007ffff2de78d3 in ff_read_packet (s=s@entry=0x646480, pkt=pkt@entry=0x7fffffffda20) at libavformat/utils.c:756
#6  0x00007ffff2de8600 in read_frame_internal (s=0x646480, pkt=0x6315a0) at libavformat/utils.c:1454
#7  0x00007ffff2de9661 in av_read_frame (s=0x646480, pkt=0x6315a0) at libavformat/utils.c:1639
#8  0x00007ffff687c06f in ff_decode (uHeight=1080, uWidth=<optimized out>, uInSize=<optimized out>, pInData=<optimized out>, pCtx=0x631560) at src/FFDecode.cpp:467
#9  ff_decode_rgb (pCtx=0x631560, pInData=<optimized out>, uInSize=<optimized out>, img=0x6314d0, uWidth=1920, uHeight=1080) at src/FFDecode.cpp:523
#10 0x00007ffff687a73c in v3_decode_frame (Ctx=<optimized out>, H264_data=<optimized out>, len=<optimized out>, last=<optimized out>) at src/ctxh264.cpp:168
#11 0x0000000000402688 in main ()
(gdb) print s
$1 = (AVIOContext *) 0x646fe0
(gdb) print *s
$2 = {av_class = 0x0,
  buffer = 0x66c086 "\220\257\255$~\220\f\001\204\256L\345D\351?d=\364\326\006N\254\202\av\360\060\260pj\005\255\354\236\300,\031\367\362\350\062\212\223uv\326\303_\346\276\323E[\355S\177\305 \274\261\253\f\001\220\311\301\376\254\361ւhwa\240\370<\275\005<x\034\375u\306\310\300\005\177O\246=\345^o\310\323\332x\344D\213 \350\037vy\370C\276Ė\233K\f!nG\346H\273\240_;\254\373\021\027\327[\035\336Kz\202\331\301\223\004H\262\033\267\275\302\351\365\264}\344\355\246\277\365b\264J\272+\364\314\335\306E\301\v6)\206?ϱãO\374R_\377\373\330\343\243\315B\246\270\026\224\200z\306M\250\070v\361\027", <incomplete sequence \322>..., buffer_size = 58809,
  buf_ptr = 0x66c086 "\220\257\255$~\220\f\001\204\256L\345D\351?d=\364\326\006N\254\202\av\360\060\260pj\005\255\354\236\300,\031\367\362\350\062\212\223uv\326\303_\346\276\323E[\355S\177\305 \274\261\253\f\001\220\311\301\376\254\361ւhwa\240\370<\275\005<x\034\375u\306\310\300\005\177O\246=\345^o\310\323\332x\344D\213 \350\037vy\370C\276Ė\233K\f!nG\346H\273\240_;\254\373\021\027\327[\035\336Kz\202\331\301\223\004H\262\033\267\275\302\351\365\264}\344\355\246\277\365b\264J\272+\364\314\335\306E\301\v6)\206?ϱãO\374R_\377\373\330\343\243\315B\246\270\026\224\200z\306M\250\070v\361\027", <incomplete sequence \322>...,
  buf_end = 0x66c086 "\220\257\255$~\220\f\001\204\256L\345D\351?d=\364\326\006N\254\202\av\360\060\260pj\005\255\354\236\300,\031\367\362\350\062\212\223uv\326\303_\346\276\323E[\355S\177\305 \274\261\253\f\001\220\311\301\376\254\361ւhwa\240\370<\275\005<x\034\375u\306\310\300\005\177O\246=\345^o\310\323\332x\344D\213 \350\037vy\370C\276Ė\233K\f!nG\346H\273\240_;\254\373\021\027\327[\035\336Kz\202\331\301\223\004H\262\033\267\275\302\351\365\264}\344\355\246\277\365b\264J\272+\364\314\335\306E\301\v6)\206?ϱãO\374R_\377\373\330\343\243\315B\246\270\026\224\200z\306M\250\070v\361\027", <incomplete sequence \322>..., opaque = 0x631588,
  read_packet = 0x7ffff687ba10 <read_packet(void*, unsigned char*, int)>, write_packet = 0x0, seek = 0x0, pos = 1293, must_flush = 0, eof_reached = 0, write_flag = 0,
  max_packet_size = 0, checksum = 0, checksum_ptr = 0x0, update_checksum = 0x0, error = 0, read_pause = 0x0, read_seek = 0x0, seekable = 0, maxsize = 0, direct = 0,
  bytes_read = 1293, seek_count = 0, writeout_count = 0, orig_buffer_size = 1206, short_seek_threshold = 4096, protocol_whitelist = 0x0, protocol_blacklist = 0x0}
(gdb)