Thread 8 (Thread 0x7fffe0b3b700 (LWP 29650)):
#0  0x00007ffff7795964 in do_futex_wait.constprop.1 () from /lib64/libpthread.so.0
#1  0x00007ffff7795a1c in __new_sem_wait_slow.constprop.0 () from /lib64/libpthread.so.0
#2  0x00000000004c94d8 in screensaver_thread ()
#3  0x00007ffff778f4b6 in start_thread () from /lib64/libpthread.so.0
#4  0x00007ffff16c926d in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7fffe133c700 (LWP 29649)):
#0  0x000000000049d6e4 in mp_imgfmt_get_desc ()
#1  0x00000000004b6f43 in init_format ()
#2  0x00000000004bb019 in gl_video_check_format ()
#3  0x00000000004c08a1 in query_format ()
#4  0x00000000004bd2c1 in run_query_format ()
#5  0x000000000044d612 in mp_dispatch_queue_process ()
#6  0x00000000004be855 in vo_thread ()
#7  0x00007ffff778f4b6 in start_thread () from /lib64/libpthread.so.0
#8  0x00007ffff16c926d in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7fffe1b3d700 (LWP 29648)):
#0  0x00007ffff779392f in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x000000000043047b in demux_thread ()
#2  0x00007ffff778f4b6 in start_thread () from /lib64/libpthread.so.0
#3  0x00007ffff16c926d in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7fffe233e700 (LWP 29646)):
#0  0x00007ffff16c060d in poll () from /lib64/libc.so.6
#1  0x00000000004cdc75 in terminal_thread ()
#2  0x00007ffff778f4b6 in start_thread () from /lib64/libpthread.so.0
#3  0x00007ffff16c926d in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7fffe2b3f700 (LWP 29645)):
#0  0x00007ffff779392f in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x000000000044d6e3 in mp_dispatch_suspend ()
#2  0x0000000000473b42 in script_suspend ()
#3  0x00007ffff2744a38 in ?? () from /usr/lib64/libluajit-5.1.so.2
#4  0x0000000000472c63 in load_scripts ()
#5  0x00007ffff2744a38 in ?? () from /usr/lib64/libluajit-5.1.so.2
#6  0x00007ffff27517af in lua_pcall () from /usr/lib64/libluajit-5.1.so.2
#7  0x0000000000474364 in run_lua ()
#8  0x00007ffff2744a38 in ?? () from /usr/lib64/libluajit-5.1.so.2
#9  0x00007ffff2751834 in lua_cpcall () from /usr/lib64/libluajit-5.1.so.2
#10 0x0000000000471b07 in load_lua ()
#11 0x0000000000479387 in script_thread ()
---Type <return> to continue, or q <return> to quit---
#12 0x00007ffff778f4b6 in start_thread () from /lib64/libpthread.so.0
#13 0x00007ffff16c926d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7fffe3340700 (LWP 29644)):
#0  0x00007ffff779392f in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x000000000044d6e3 in mp_dispatch_suspend ()
#2  0x0000000000473b42 in script_suspend ()
#3  0x00007ffff2744a38 in ?? () from /usr/lib64/libluajit-5.1.so.2
#4  0x0000000000472c63 in load_scripts ()
#5  0x00007ffff2744a38 in ?? () from /usr/lib64/libluajit-5.1.so.2
#6  0x00007ffff27517af in lua_pcall () from /usr/lib64/libluajit-5.1.so.2
#7  0x0000000000474364 in run_lua ()
#8  0x00007ffff2744a38 in ?? () from /usr/lib64/libluajit-5.1.so.2
#9  0x00007ffff2751834 in lua_cpcall () from /usr/lib64/libluajit-5.1.so.2
#10 0x0000000000471b07 in load_lua ()
#11 0x0000000000479387 in script_thread ()
#12 0x00007ffff778f4b6 in start_thread () from /lib64/libpthread.so.0
#13 0x00007ffff16c926d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7ffff7f74800 (LWP 29643)):
#0  0x00007ffff779392f in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x000000000044d553 in mp_dispatch_run ()
#2  0x00000000004be212 in vo_query_formats ()
#3  0x000000000047b2b8 in reinit_video_chain ()
#4  0x000000000046f690 in mp_play_files ()
#5  0x0000000000470eea in mpv_main ()
#6  0x00007ffff1603855 in __libc_start_main () from /lib64/libc.so.6
#7  0x0000000000413439 in _start ()


algrind /usr/bin/mpv 00001\ Title\ 1.mkv
==31071== Memcheck, a memory error detector
==31071== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al.
==31071== Using Valgrind-3.10.1 and LibVEX; rerun with -h for copyright info
==31071== Command: /usr/bin/mpv 00001\ Title\ 1.mkv
==31071==
[osc] Could not load script @osc.lua
[ytdl_hook] Could not load script @ytdl_hook.lua
==31071== Warning: invalid file descriptor -1 in syscall close()
==31071== Warning: invalid file descriptor -1 in syscall close()
Playing: 00001 Title 1.mkv
 (+) Video --vid=1 (*) (h264)
 (+) Audio --aid=1 (*) 'Stereo' (ac3)
File tags:
 Title: 00001
==31071== Thread 4 mpv/vo:
==31071== Invalid read of size 1
==31071==    at 0x49D6E4: mp_imgfmt_get_desc (in /usr/bin/mpv)
==31071==    by 0x4B6F42: init_format (in /usr/bin/mpv)
==31071==    by 0x4BB018: gl_video_check_format (in /usr/bin/mpv)
==31071==    by 0x4C08A0: query_format (in /usr/bin/mpv)
==31071==    by 0x4BD2C0: run_query_format (in /usr/bin/mpv)
==31071==    by 0x44D611: mp_dispatch_queue_process (in /usr/bin/mpv)
==31071==    by 0x4BE854: vo_thread (in /usr/bin/mpv)
==31071==    by 0x52774B5: start_thread (in /lib64/libpthread-2.21.so)
==31071==    by 0xB37F26C: clone (in /lib64/libc-2.21.so)
==31071==  Address 0x232b7e62 is not stack'd, malloc'd or (recently) free'd
==31071==
==31071==
==31071== Process terminating with default action of signal 11 (SIGSEGV)
==31071==  Access not within mapped region at address 0x232B7E62
==31071==    at 0x49D6E4: mp_imgfmt_get_desc (in /usr/bin/mpv)
==31071==    by 0x4B6F42: init_format (in /usr/bin/mpv)
==31071==    by 0x4BB018: gl_video_check_format (in /usr/bin/mpv)
==31071==    by 0x4C08A0: query_format (in /usr/bin/mpv)
==31071==    by 0x4BD2C0: run_query_format (in /usr/bin/mpv)
==31071==    by 0x44D611: mp_dispatch_queue_process (in /usr/bin/mpv)
==31071==    by 0x4BE854: vo_thread (in /usr/bin/mpv)
==31071==    by 0x52774B5: start_thread (in /lib64/libpthread-2.21.so)
==31071==    by 0xB37F26C: clone (in /lib64/libc-2.21.so)
==31071==  If you believe this happened as a result of a stack
==31071==  overflow in your program's main thread (unlikely but
==31071==  possible), you can try to increase the size of the
==31071==  main thread stack using the --main-stacksize= flag.
==31071==  The main thread stack size used in this run was 8388608.
==31071==
==31071== HEAP SUMMARY:
==31071==     in use at exit: 6,327,277 bytes in 5,957 blocks
==31071==   total heap usage: 14,999 allocs, 9,042 frees, 1,590,391,087 bytes allocated
==31071==
==31071== LEAK SUMMARY:
==31071==    definitely lost: 64 bytes in 1 blocks
==31071==    indirectly lost: 0 bytes in 0 blocks
==31071==      possibly lost: 2,726,082 bytes in 1,822 blocks
==31071==    still reachable: 3,601,131 bytes in 4,134 blocks
==31071==         suppressed: 0 bytes in 0 blocks
==31071== Rerun with --leak-check=full to see details of leaked memory
==31071==
==31071== For counts of detected and suppressed errors, rerun with: -v
==31071== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0)