Opened 8 years ago
Closed 8 years ago
#5779 closed defect (duplicate)
Segmentation fault when capture webcam frame
Reported by: | laurent22 | Owned by: | |
---|---|---|---|
Priority: | important | Component: | undetermined |
Version: | unspecified | Keywords: | |
Cc: | Blocked By: | ||
Blocking: | Reproduced by developer: | no | |
Analyzed by developer: | no |
Description
I'm getting a segmentation fault when I try to capture a frame from my webcam. The same command used to work fine but now doesn't, I'm not sure if it's due to a change in ffmpeg or in my system (I recently applied the Windows 10 Anniversary Edition update if that can make a difference).
I got the Windows build from there: https://ffmpeg.zeranoe.com/builds/
How to reproduce:
% ffmpeg.exe -y -loglevel trace -f dshow -i video="USB2.0 HD UVC WebCam" d:\cap_20160814T154913_552705200.jpg
Output:
ffmpeg version N-81338-g6612d04 Copyright (c) 2000-2016 the FFmpeg developers built with gcc 5.4.0 (GCC) configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-libebur128 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --ena ble-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-lib openjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib libavutil 55. 28.100 / 55. 28.100 libavcodec 57. 51.102 / 57. 51.102 libavformat 57. 46.101 / 57. 46.101 libavdevice 57. 0.102 / 57. 0.102 libavfilter 6. 51.100 / 6. 51.100 libswscale 4. 1.100 / 4. 1.100 libswresample 2. 1.100 / 2. 1.100 libpostproc 54. 0.100 / 54. 0.100 Splitting the commandline. Reading option '-y' ... matched as option 'y' (overwrite output files) with argument '1'. Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument 'trace'. Reading option '-f' ... matched as option 'f' (force format) with argument 'dshow'. Reading option '-i' ... matched as input file with argument 'video=USB2.0 HD UVC WebCam'. Reading option 'd:\cap_20160814T154913_552705200.jpg' ... matched as output file. Finished splitting the commandline. Parsing a group of options: global . Applying option y (overwrite output files) with argument 1. Applying option loglevel (set logging level) with argument trace. Successfully parsed a group of options. Parsing a group of options: input file video=USB2.0 HD UVC WebCam. Applying option f (force format) with argument dshow. Successfully parsed a group of options. Opening an input file: video=USB2.0 HD UVC WebCam. [dshow @ 0000000000e124a0] Selecting pin Capture on video
GDB trace:
(gdb) r -y -loglevel trace -f dshow -i video="USB2.0 HD UVC WebCam" d:\cap_20160814T154913_552705200.jpg Starting program: d:\Programmes\ffmpeg\bin\ffmpeg_g.exe -y -loglevel trace -f dshow -i video="USB2.0 HD UVC WebCam" d:\cap_20160814T154913_552705200.jpg [New Thread 12988.0x2438] warning: `C:\WINDOWS\SYSTEM32\ntdll.dll': Shared library architecture i386:x86-64 is not compatible with target architecture i386. warning: `C:\WINDOWS\System32\wow64.dll': Shared library architecture i386:x86-64 is not compatible with target architecture i386. warning: `C:\WINDOWS\System32\wow64win.dll': Shared library architecture i386:x86-64 is not compatible with target architecture i386. warning: Could not load shared library symbols for WOW64_IMAGE_SECTION. Do you need "set solib-search-path" or "set sysroot"? warning: Could not load shared library symbols for WOW64_IMAGE_SECTION. Do you need "set solib-search-path" or "set sysroot"? warning: Could not load shared library symbols for NOT_AN_IMAGE. Do you need "set solib-search-path" or "set sysroot"? warning: Could not load shared library symbols for NOT_AN_IMAGE. Do you need "set solib-search-path" or "set sysroot"? warning: `C:\WINDOWS\System32\wow64cpu.dll': Shared library architecture i386:x86-64 is not compatible with target architecture i386. [New Thread 12988.0x3100] [New Thread 12988.0x14fc] [New Thread 12988.0x1d9c] ffmpeg version N-80614-g7e4e8fd Copyright (c) 2000-2016 the FFmpeg developers built with gcc 5.3.0 (GCC) configuration: --arch=x86 --target-os=mingw32 --cross-prefix=/home/rdp/dev/ffmpeg-windows-build-helpers/sandbox/cross_compilers/mingw-w64-i686/bin/i686-w64-mingw32- --pkg-config=pkg-config --disable-w32threads --enable-gpl --enable-libsox r --enable-fontconfig --enable-libass --enable-libbluray --enable-iconv --enable-libtwolame --extra-cflags=-DLIBTWOLAME_STATIC --enable-libzvbi --enable-libcaca --enable-libmodplug --extra-libs=-lstdc++ --extra-libs=-lpng --enable-libvidsta b --enable-libx265 --enable-decklink --extra-libs=-loleaut32 --enable-libx264 --enable-libxvid --enable-libmp3lame --enable-version3 --enable-zlib --enable-librtmp --enable-libvorbis --enable-libtheora --enable-libspeex --enable-libopenjpeg --enable-gnutls --enable-libgsm --enable-libfreetype --enable-libopus --enable-frei0r --enable-filter=frei0r --enable-bzlib --enable-libxavs --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-amrwbenc --enable-libschroedi nger --enable-libvpx --enable-libilbc --enable-libwavpack --enable-libwebp --enable-libgme --enable-dxva2 --enable-avisynth --enable-gray --enable-libopenh264 --enable-nvenc --enable-libmfx --extra-libs=-lpsapi --extra-cflags= --enable-stat ic --disable-shared --prefix=/home/rdp/dev/ffmpeg-windows-build-helpers/sandbox/cross_compilers/mingw-w64-i686/i686-w64-mingw32 --enable-runtime-cpudetect libavutil 55. 26.100 / 55. 26.100 libavcodec 57. 46.100 / 57. 46.100 libavformat 57. 40.101 / 57. 40.101 libavdevice 57. 0.101 / 57. 0.101 libavfilter 6. 46.102 / 6. 46.102 libswscale 4. 1.100 / 4. 1.100 libswresample 2. 1.100 / 2. 1.100 libpostproc 54. 0.100 / 54. 0.100 Splitting the commandline. Reading option '-y' ... matched as option 'y' (overwrite output files) with argument '1'. Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument 'trace'. Reading option '-f' ... matched as option 'f' (force format) with argument 'dshow'. Reading option '-i' ... matched as input file with argument 'video=USB2.0 HD UVC WebCam'. Reading option 'd:\cap_20160814T154913_552705200.jpg' ... matched as output file. Finished splitting the commandline. Parsing a group of options: global . Applying option y (overwrite output files) with argument 1. Applying option loglevel (set logging level) with argument trace. Successfully parsed a group of options. Parsing a group of options: input file video=USB2.0 HD UVC WebCam. Applying option f (force format) with argument dshow. Successfully parsed a group of options. Opening an input file: video=USB2.0 HD UVC WebCam. [New Thread 12988.0x301c] [New Thread 12988.0x2608] [dshow @ 0ae24b20] Selecting pin Capture on video [New Thread 12988.0x2a38] [Thread 12988.0x2a38 exited with code 0] [New Thread 12988.0x6ec] [Thread 12988.0x6ec exited with code 0] [New Thread 12988.0x1c8] [New Thread 12988.0x33c0] [New Thread 12988.0x24c0] [New Thread 12988.0x84c] [New Thread 12988.0x1d14] warning: HEAP[ffmpeg_g.exe]: warning: Invalid address specified to RtlFreeHeap( 089F0000, 0AE568D0 ) [New Thread 12988.0x208c] dshow passing through packet of type video size 614400 timestamp 1539965470000 orig timestamp 1539962300000 graph timestamp 1539965470000 diff 3170000 USB2.0 HD UVC WebCam [New Thread 12988.0x2f30] [dshow @ 0ae24b20] All info found [dshow @ 0ae24b20] stream 0: start_time: 153996.547 duration: -922337203685.478 [dshow @ 0ae24b20] format: start_time: 153996.547 duration: -9223372036854.775 bitrate=0 kb/s Input #0, dshow, from 'video=USB2.0 HD UVC WebCam': Duration: N/A, start: 153996.547000, bitrate: N/A Stream #0:0, 1, 1/10000000: Video: rawvideo, 1 reference frame (YUY2 / 0x32595559), yuyv422, 640x480, 0/1, 30 fps, 30 tbr, 10000k tbn, 10000k tbc Successfully opened the file. Parsing a group of options: output file d:\cap_20160814T154913_552705200.jpg. Successfully parsed a group of options. Opening an output file: d:\cap_20160814T154913_552705200.jpg. Successfully opened the file. detected 8 logical cores [New Thread 12988.0x588] [New Thread 12988.0x1eb8] [New Thread 12988.0x1530] [New Thread 12988.0x2bf8] [New Thread 12988.0x17b0] [New Thread 12988.0x2808] [New Thread 12988.0x1bdc] [New Thread 12988.0x3300] [New Thread 12988.0x8b8] [graph 0 input from stream 0:0 @ 0ae60580] Setting 'video_size' to value '640x480' [graph 0 input from stream 0:0 @ 0ae60580] Setting 'pix_fmt' to value '1' [graph 0 input from stream 0:0 @ 0ae60580] Setting 'time_base' to value '1/10000000' [graph 0 input from stream 0:0 @ 0ae60580] Setting 'pixel_aspect' to value '0/1' [graph 0 input from stream 0:0 @ 0ae60580] Setting 'sws_param' to value 'flags=2' [graph 0 input from stream 0:0 @ 0ae60580] Setting 'frame_rate' to value '10000000/333333' [graph 0 input from stream 0:0 @ 0ae60580] w:640 h:480 pixfmt:yuyv422 tb:1/10000000 fr:10000000/333333 sar:0/1 sws_param:flags=2 [format @ 0ae60ce0] compat: called with args=[yuvj420p|yuvj422p|yuvj444p] [format @ 0ae60ce0] Setting 'pix_fmts' to value 'yuvj420p|yuvj422p|yuvj444p' [auto-inserted scaler 0 @ 0ae61b80] Setting 'flags' to value 'bicubic' [auto-inserted scaler 0 @ 0ae61b80] w:iw h:ih flags:'bicubic' interl:0 [format @ 0ae60ce0] auto-inserting filter 'auto-inserted scaler 0' between the filter 'Parsed_null_0' and the filter 'format' [AVFilterGraph @ 0ae248a0] query_formats: 4 queried, 2 merged, 1 already done, 0 delayed [auto-inserted scaler 0 @ 0ae61b80] picking yuvj422p out of 3 ref:yuyv422 alpha:0 dshow passing through packet of type video size 614400 timestamp 1539965750000 orig timestamp 1539962620487 graph timestamp 1539965750000 diff 3129513 USB2.0 HD UVC WebCam [swscaler @ 0ae61fc0] deprecated pixel format used, make sure you did set range correctly [auto-inserted scaler 0 @ 0ae61b80] w:640 h:480 fmt:yuyv422 sar:0/1 -> w:640 h:480 fmt:yuvj422p sar:0/1 flags:0x4 [mjpeg @ 0ae5c380] Forcing thread count to 1 for MJPEG encoding, use -thread_type slice or a constant quantizer if you want to use multiple cpu cores [mjpeg @ 0ae5c380] intra_quant_bias = 96 inter_quant_bias = 0 [image2 @ 0ae58ca0] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead. Output #0, image2, to 'd:\cap_20160814T154913_552705200.jpg': Metadata: encoder : Lavf57.40.101 Stream #0:0, 0, 333333/10000000: Video: mjpeg, 1 reference frame, yuvj422p(pc), 640x480, 0/1, q=2-31, 200 kb/s, 30 fps, 30 tbn, 30 tbc Metadata: encoder : Lavc57.46.100 mjpeg Side data: cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1 Stream mapping: Stream #0:0 -> #0:0 (rawvideo (native) -> mjpeg (native)) Press [q] to stop, [?] for help cur_dts is invalid (this is harmless if it occurs once at the start per stream) [rawvideo @ 0ae58380] PACKET SIZE: 614400, STRIDE: 1280 Clipping frame in rate conversion by 0.000008 [file @ 12731d00] Setting default whitelist 'file,crypto' [AVIOContext @ 1273e740] Statistics: 0 seeks, 1 writeouts [rawvideo @ 0ae58380] PACKET SIZE: 614400, STRIDE: 1280 Clipping frame in rate conversion by 0.156242 [image2 @ 0ae58ca0] Could not get frame filename number 2 from pattern 'd:\cap_20160814T154913_552705200.jpg' (either set updatefirst or use a pattern like %03d within the filename pattern) av_interleaved_write_frame(): Invalid argument No more output streams to write to, finishing. frame= 2 fps=0.0 q=2.2 Lsize=N/A time=00:00:00.06 bitrate=N/A speed=4.44x video:45kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown Input file #0 (video=USB2.0 HD UVC WebCam): Input stream #0:0 (video): 2 packets read (1228800 bytes); 2 frames decoded; Total: 2 packets (1228800 bytes) demuxed Output file #0 (d:\cap_20160814T154913_552705200.jpg): Output stream #0:0 (video): 2 frames encoded; 2 packets muxed (46478 bytes); Total: 2 packets (46478 bytes) muxed 2 frames successfully decoded, 0 decoding errors [Thread 12988.0x2808 exited with code 0] [Thread 12988.0x17b0 exited with code 0] [Thread 12988.0x588 exited with code 0] [Thread 12988.0x1eb8 exited with code 0] [Thread 12988.0x1530 exited with code 0] [Thread 12988.0x2bf8 exited with code 0] [Thread 12988.0x1bdc exited with code 0] dshow passing through packet of type video size 614400 timestamp 1539966140000 orig timestamp 1539962940701 graph timestamp 1539966140000 diff 3199299 USB2.0 HD UVC WebCam [Thread 12988.0x3300 exited with code 0] [Thread 12988.0x8b8 exited with code 0] [Thread 12988.0x24c0 exited with code 0] [Thread 12988.0x301c exited with code 0] [Thread 12988.0x1d14 exited with code 0] [Thread 12988.0x208c exited with code 0] [Thread 12988.0x2608 exited with code 0] [Thread 12988.0x84c exited with code 0] [Thread 12988.0x33c0 exited with code 0] [Thread 12988.0x1c8 exited with code 0] [New Thread 12988.0x2824] [Thread 12988.0x2f30 exited with code 0] Conversion failed! [Thread 12988.0x1d9c exited with code 1] [Thread 12988.0x3100 exited with code 1] [Thread 12988.0x2824 exited with code 1] [Thread 12988.0x14fc exited with code 1] [Inferior 1 (process 12988) exited with code 01]
In fact, I've just noticed that, unfortunately, when running in gdb it works, though the exact same command outside definitely crashes. If I can provide any additional information, please let me know
Change History (3)
comment:1 by , 8 years ago
comment:2 by , 8 years ago
This is the Windows even log:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"> <System> <Provider Name="Application Error" /> <EventID Qualifiers="0">1000</EventID> <Level>2</Level> <Task>100</Task> <Keywords>0x80000000000000</Keywords> <TimeCreated SystemTime="2016-08-14T15:25:11.794409900Z" /> <EventRecordID>478</EventRecordID> <Channel>Application</Channel> <Computer>ROG</Computer> <Security /> </System> <EventData> <Data>ffmpeg.exe</Data> <Data>0.0.0.0</Data> <Data>00000000</Data> <Data>ntdll.dll</Data> <Data>10.0.14393.0</Data> <Data>578997b2</Data> <Data>c0000374</Data> <Data>00000000000f73e3</Data> <Data>2e1c</Data> <Data>01d1f6400c2bcb28</Data> <Data>d:\Programmes\ffmpeg\bin\ffmpeg.exe</Data> <Data>C:\WINDOWS\SYSTEM32\ntdll.dll</Data> <Data>50d89ed6-f935-454b-ac42-012f9624b04a</Data> <Data /> <Data /> </EventData> </Event>
comment:3 by , 8 years ago
Component: | ffmpeg → undetermined |
---|---|
Resolution: | → duplicate |
Status: | new → closed |
See #5775.
This is the Windows even log: