ubuntu下使用QT开发的实时视频播放demo

Operating system: Linux 0.0.0 Linux 4.4.0-31-generic #50-Ubuntu SMP Wed Jul 13 00:07:12 UTC 2016 x86_64 CPU: amd64 family 6 model 78 stepping 3 1 CPU GPU: UNKNOWN Crash reason: SIGSEGV /SEGV_MAPERR Crash address: 0x4 Process uptime: not available Thread 0 (crashed) 0 libQt5Core.so.5.7.0 + 0x12f848 rax = 0x0000000000000000 rdx = 0x000000000619ec78 rcx = 0x00000000037da360 rbx = 0x0000000000000001 rsi = 0x0000000005823d60 rdi = 0x0000000000000000 rbp = 0x00007ffc1ed337a0 rsp = 0x00007ffc1ed33728 r8 = 0x0000000005a91b00 r9 = 0x0000000000000000 r10 = 0x0000000000000000 r11 = 0x0000000000000000 r12 = 0x0000000005aa3d90 r13 = 0x0000000000000004 r14 = 0x00007f2f8202f6c8 r15 = 0x00000000041adcd0 rip = 0x00007f2f81a44848 Found by: given as instruction pointer in context 1 QuickCheck + 0x106f63 rbp = 0x00007ffc1ed339a0 rsp = 0x00007ffc1ed337b0 rip = 0x0000000000506f63 Found by: previous frame's frame pointer 2 QuickCheck + 0x1101d6 rbp = 0x00007ffc1ed33a00 rsp = 0x00007ffc1ed339b0 rip = 0x00000000005101d6 Found by: previous frame's frame pointer 3 QuickCheck + 0x10f5d9 rbp = 0x00007ffc1ed33a30 rsp = 0x00007ffc1ed33a10 rip = 0x000000000050f5d9 Found by: previous frame's frame pointer 4 QuickCheck + 0x10ebed rbp = 0x00007ffc1ed33a80 rsp = 0x00007ffc1ed33a40 rip = 0x000000000050ebed Found by: previous frame's frame pointer 5 libQt5Core.so.5.7.0 + 0x29977d rbp = 0x00007ffc1ed33b90 rsp = 0x00007ffc1ed33a90 rip = 0x00007f2f81bae77d Found by: previous frame's frame pointer 6 QuickCheck + 0x13493a rbp = 0x00007ffc1ed33bd0 rsp = 0x00007ffc1ed33ba0 rip = 0x000000000053493a Found by: previous frame's frame pointer 7 QuickCheck + 0x11482f rbp = 0x00007ffc1ed34250 rsp = 0x00007ffc1ed33be0 rip = 0x000000000051482f Found by: previous frame's frame pointer 8 QuickCheck + 0x134434 rbp = 0x00007ffc1ed343c0 rsp = 0x00007ffc1ed34260 rip = 0x0000000000534434 Found by: previous frame's frame pointer 9 libQt5Core.so.5.7.0 + 0x299056 rbp = 0x00007ffc1ed344d0 rsp = 0x00007ffc1ed343d0 rip = 0x00007f2f81bae056 Found by: previous frame's frame pointer 10 libQt5Widgets.so.5.7.0 + 0x163391 rbp = 0x00007ffc1ed344d0 rsp = 0x00007ffc1ed34450 rip = 0x00007f2f830f6391 Found by: stack scanning 11 libQt5Core.so.5.7.0 + 0x350ef8 rbp = 0x00007ffc1ed344d0 rsp = 0x00007ffc1ed34470 rip = 0x00007f2f81c65ef8 Found by: stack scanning 12 QuickCheck + 0x7625d rbp = 0x00007ffc1ed344d0 rsp = 0x00007ffc1ed344a0 rip = 0x000000000047625d Found by: stack scanning 13 libQt5Network.so.5.7.0 + 0x60d60 rbp = 0x00007ffc1ed344d0 rsp = 0x00007ffc1ed344c8 rip = 0x00007f2f82090d60 Found by: stack scanning 14 libQt5Network.so.5.7.0 + 0x5d252 rsp = 0x00007ffc1ed344e0 rip = 0x00007f2f8208d252 Found by: stack scanning 15 libQt5Network.so.5.7.0 + 0x5e8e4 rsp = 0x00007ffc1ed34510 rip = 0x00007f2f8208e8e4 Found by: stack scanning 16 libQt5Network.so.5.7.0 + 0x60fe9 rsp = 0x00007ffc1ed34530 rip = 0x00007f2f82090fe9 Found by: stack scanning 17 QuickCheck + 0x7458b rsp = 0x00007ffc1ed34560 rip = 0x000000000047458b Found by: stack scanning 18 libQt5Core.so.5.7.0 + 0x299056 rsp = 0x00007ffc1ed34580 rip = 0x00007f2f81bae056 Found by: stack scanning 19 libQt5Core.so.5.7.0 + 0x352db0 rsp = 0x00007ffc1ed34588 rip = 0x00007f2f81c67db0 Found by: stack scanning 20 libc-2.23.so + 0x115876 rsp = 0x00007ffc1ed34600 rip = 0x00007f2f80ba2876 Found by: stack scanning 21 libQt5Network.so.5.7.0 + 0x10bf2b rsp = 0x00007ffc1ed34650 rip = 0x00007f2f8213bf2b Found by: stack scanning 22 libQt5Network.so.5.7.0 + 0x80787 rsp = 0x00007ffc1ed34690 rip = 0x00007f2f820b0787 Found by: stack scanning 23 libQt5Widgets.so.5.7.0 + 0x163af1 rsp = 0x00007ffc1ed346c0 rip = 0x00007f2f830f6af1 Found by: stack scanning 24 libQt5Network.so.5.7.0 + 0x10ca09 rsp = 0x00007ffc1ed34700 rip = 0x00007f2f8213ca09 Found by: stack scanning 25 libQt5Core.so.5.7.0 + 0x350ee0 rsp = 0x00007ffc1ed34728 rip = 0x00007f2f81c65ee0 Found by: stack scanning 26 libQt5Core.so.5.7.0 + 0x29724e rsp = 0x00007ffc1ed34730 rip = 0x00007f2f81bac24e Found by: stack scanning 27 libQt5Core.so.5.7.0 + 0x29a61a rsp = 0x00007ffc1ed34750 rip = 0x00007f2f81baf61a Found by: stack scanning 28 libQt5Widgets.so.5.7.0 + 0x15452c rsp = 0x00007ffc1ed347c0 rip = 0x00007f2f830e752c Found by: stack scanning 29 libQt5Widgets.so.5.7.0 + 0x15b220 rsp = 0x00007ffc1ed347f0 rip = 0x00007f2f830ee220 Found by: stack scanning 30 libQt5Widgets.so.5.7.0 + 0x15b220 rsp = 0x00007ffc1ed34800 rip = 0x00007f2f830ee220 Found by: stack scanning 31 libQt5Core.so.5.7.0 + 0x286427 rsp = 0x00007ffc1ed34840 rip = 0x00007f2f81b9b427 Found by: stack scanning 32 QuickCheck + 0x2f250 rsp = 0x00007ffc1ed34860 rip = 0x000000000042f250 Found by: stack scanning 33 libc-2.23.so + 0x8453c rsp = 0x00007ffc1ed348c0 rip = 0x00007f2f80b1153c Found by: stack scanning 34 libQt5Core.so.5.7.0 + 0x28a0a0 rsp = 0x00007ffc1ed348d0 rip = 0x00007f2f81b9f0a0 Found by: stack scanning 35 libQt5Core.so.5.7.0 + 0xaa5a6 rsp = 0x00007ffc1ed34910 rip = 0x00007f2f819bf5a6 Found by: stack scanning 36 libQt5Core.so.5.7.0 + 0x271ae0 rsp = 0x00007ffc1ed34950 rip = 0x00007f2f81b86ae0 Found by: stack scanning 37 linux-gate.so + 0xcd5 rsp = 0x00007ffc1ed34960 rip = 0x00007ffc1edbacd5 Found by: stack scanning 38 libQt5Core.so.5.7.0 + 0x27451b rsp = 0x00007ffc1ed349b0 rip = 0x00007f2f81b8951b Found by: stack scanning 39 libQt5Core.so.5.7.0 + 0x2bec40 rsp = 0x00007ffc1ed34a48 rip = 0x00007f2f81bd3c40 Found by: stack scanning 40 libQt5Core.so.5.7.0 + 0x2bec53 rsp = 0x00007ffc1ed34a50 rip = 0x00007f2f81bd3c53 Found by: stack scanning 41 libglib-2.0.so.0.4800.2 + 0x4a197 rsp = 0x00007ffc1ed34a60 rip = 0x00007f2f7ea12197 Found by: stack scanning 42 libglib-2.0.so.0.4800.2 + 0x59320 rsp = 0x00007ffc1ed34ae0 rip = 0x00007f2f7ea21320 Found by: stack scanning 43 libglib-2.0.so.0.4800.2 + 0x4a3f0 rsp = 0x00007ffc1ed34af0 rip = 0x00007f2f7ea123f0 Found by: stack scanning 44 libglib-2.0.so.0.4800.2 + 0x4a49c rsp = 0x00007ffc1ed34b50 rip = 0x00007f2f7ea1249c Found by: stack scanning 45 libQt5Core.so.5.7.0 + 0x2bf047 rsp = 0x00007ffc1ed34b70 rip = 0x00007f2f81bd4047 Found by: stack scanning 46 libQt5Core.so.5.7.0 + 0x26fdca rsp = 0x00007ffc1ed34bb0 rip = 0x00007f2f81b84dca Found by: stack scanning 47 libQt5Core.so.5.7.0 + 0x26f919 rsp = 0x00007ffc1ed34bf0 rip = 0x00007f2f81b84919 Found by: stack scanning 48 libQt5Core.so.5.7.0 + 0x394e20 rsp = 0x00007ffc1ed34bf8 rip = 0x00007f2f81ca9e20 Found by: stack scanning 49 QuickCheck + 0x2abc0 rsp = 0x00007ffc1ed34c10 rip = 0x000000000042abc0 Found by: stack scanning 50 libQt5Core.so.5.7.0 + 0x277bad rsp = 0x00007ffc1ed34c30 rip = 0x00007f2f81b8cbad Found by: stack scanning 51 QuickCheck + 0x2abc0 rsp = 0x00007ffc1ed34c68 rip = 0x000000000042abc0 Found by: stack scanning 52 QuickCheck + 0x2be14 rsp = 0x00007ffc1ed34c80 rip = 0x000000000042be14 Found by: stack scanning 53 libc-2.23.so + 0xbdddb rsp = 0x00007ffc1ed34cf0 rip = 0x00007f2f80b4addb Found by: stack scanning 54 libc-2.23.so + 0xbb920 rsp = 0x00007ffc1ed34d10 rip = 0x00007f2f80b48920 Found by: stack scanning 55 libc-2.23.so + 0xbbbe6 rsp = 0x00007ffc1ed34d30 rip = 0x00007f2f80b48be6 Found by: stack scanning 56 libQt5Core.so.5.7.0 + 0x350ee0 rsp = 0x00007ffc1ed34d68 rip = 0x00007f2f81c65ee0 Found by: stack scanning 57 QuickCheck + 0x1c7f00