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FFmpeg recording works on one laptop but not the other
30 novembre 2019, par Jason TThe following command :
ffmpeg -f dshow -framerate 30 -video_size 640x480 -i video="HD Pro Webcam C920" out.mp4works on one laptop (with C920 LogiTech camera) (Im calling it GOOD LAPTOP). It outputs a recorded video. But it will fail on another laptop (called BAD LAPTOP) and by fail on another I mean - it doesnt output a video (see below for output).
The suggestions are to change parameters based on the specific error that occur on BAD LAPTOP. I have tried many different suggestions but they dont seem to work. Furthermore, they dont provide much insight into the underlying cause of the problem.
Ive used the same camera on both laptops. Im using static windows binaries downloaded from FFmpeg web-site (veranoe). Please note the versions used below were different but that doesnt appear to matter.
Trying to diagnose. Anyone have an idea of where the problem may lie. It seems to indicate a problem at the level of the system / camera setup.
Please note that I’ve updated BAD LAPTOP but still no dice. Also please note that Ive tried this on several systems already and it seems to run ok (i.e., produce an output video)
BAD LAPTOP :
$ ffmpeg -y -f dshow -framerate 30 -video_size 640x480 -t 10 -i video="HD Pro Webcam C920" out.mp4
ffmpeg version git-2019-11-26-59d264b Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 9.2.1 (GCC) 20191125
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
libavutil 56. 36.100 / 56. 36.100
libavcodec 58. 62.100 / 58. 62.100
libavformat 58. 35.100 / 58. 35.100
libavdevice 58. 9.101 / 58. 9.101
libavfilter 7. 67.100 / 7. 67.100
libswscale 5. 6.100 / 5. 6.100
libswresample 3. 6.100 / 3. 6.100
libpostproc 55. 6.100 / 55. 6.100
Input #0, dshow, from 'video=HD Pro Webcam C920':
Duration: N/A, bitrate: N/A
Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 640x480, 30 fps, 30 tbr, 10000k tbn, 10000k tbc
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
Press [q] to stop, [?] for help
video=HD Pro Webcam C920: I/O error
[libx264 @ 06cb7a00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 06cb7a00] profile High 4:2:2, level 3.0, 4:2:2, 8-bit
[libx264 @ 06cb7a00] 264 - core 158 - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'out.mp4':
Metadata:
encoder : Lavf58.35.100
Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv422p, 640x480, q=-1--1, 30 fps, 10000k tbn, 30 tbc
Metadata:
encoder : Lavc58.62.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
frame= 0 fps=0.0 q=0.0 Lsize= 0kB time=00:00:00.00 bitrate=N/A speed= 0x
video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknownGOOD LAPTOP :
$ ffmpeg -y -f dshow -framerate 30 -video_size 640x480 -t 10 -i video="Logitech HD Pro Webcam C920" out.mp4
ffmpeg version N-92780-gbb586a9703 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 8.2.1 (GCC) 20181201
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-ico
nv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --en
able-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-lib
soxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx
264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvi
dstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enabl
e-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enab
le-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
libavutil 56. 25.100 / 56. 25.100
libavcodec 58. 42.104 / 58. 42.104
libavformat 58. 25.100 / 58. 25.100
libavdevice 58. 6.101 / 58. 6.101
libavfilter 7. 46.101 / 7. 46.101
libswscale 5. 4.100 / 5. 4.100
libswresample 3. 4.100 / 3. 4.100
libpostproc 55. 4.100 / 55. 4.100
Input #0, dshow, from 'video=Logitech HD Pro Webcam C920':
Duration: N/A, start: 35609.500000, bitrate: N/A
Stream #0:0: Video: mjpeg (Baseline) (MJPG / 0x47504A4D), yuvj422p(pc, bt470bg/unknown/unknown), 640x480,
30 fps, 30 tbr, 10000k tbn, 10000k tbc
Stream mapping:
Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 000001ec0b750100] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 000001ec0b750100] profile High 4:2:2, level 3.0, 4:2:2, 8-bit
[libx264 @ 000001ec0b750100] 264 - core 157 r2935 545de2f - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - http
://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 ps
y_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma
_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 con
strained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 k
eyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69
qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'out.mp4':
Metadata:
encoder : Lavf58.25.100
Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuvj422p(pc), 640x480, q=-1--1, 30 fps, 10000k tbn
, 30 tbc
Metadata:
encoder : Lavc58.42.104 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
frame= 62 fps= 31 q=29.0 size= 0kB time=00:00:00.10 bitrate= 3.8kbits/s dup=1 drop=0 speed=0.0495x
frame= 77 fps= 30 q=29.0 size= 0kB time=00:00:00.60 bitrate= 0.6kbits/s dup=1 drop=0 speed=0.237x
frame= 92 fps= 30 q=29.0 size= 0kB time=00:00:01.09 bitrate= 0.3kbits/s dup=1 drop=0 speed=0.363x
frame= 107 fps= 30 q=29.0 size= 0kB time=00:00:01.59 bitrate= 0.2kbits/s dup=1 drop=0 speed=0.453x
frame= 168 fps= 30 q=29.0 size= 256kB time=00:00:03.63 bitrate= 577.3kbits/s dup=1 drop=0 speed=0.654x
frame= 183 fps= 30 q=29.0 size= 256kB time=00:00:04.13 bitrate= 507.5kbits/s dup=1 drop=0 speed=0.683x
frame= 198 fps= 30 q=29.0 size= 256kB time=00:00:04.63 bitrate= 452.7kbits/s dup=1 drop=0 speed=0.706x
frame= 213 fps= 30 q=29.0 size= 512kB time=00:00:05.13 bitrate= 817.1kbits/s dup=1 drop=0 speed=0.727x
frame= 228 fps= 30 q=29.0 size= 512kB time=00:00:05.63 bitrate= 744.6kbits/s dup=1 drop=0 speed=0.744x
frame= 243 fps= 30 q=29.0 size= 512kB time=00:00:06.13 bitrate= 683.9kbits/s dup=1 drop=0 speed=0.759x
frame= 259 fps= 30 q=29.0 size= 512kB time=00:00:06.66 bitrate= 629.2kbits/s dup=1 drop=0 speed=0.777x
frame= 274 fps= 30 q=29.0 size= 512kB time=00:00:07.16 bitrate= 585.3kbits/s dup=1 drop=0 speed=0.789x
frame= 289 fps= 30 q=29.0 size= 512kB time=00:00:07.66 bitrate= 547.1kbits/s dup=1 drop=0 speed=0.799x
frame= 301 fps= 30 q=-1.0 Lsize= 973kB time=00:00:09.93 bitrate= 802.7kbits/s dup=1 drop=0 speed=0.975x
video:969kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.445649%
[libx264 @ 000001ec0b750100] frame I:4 Avg QP:24.23 size: 13237
[libx264 @ 000001ec0b750100] frame P:77 Avg QP:24.67 size: 7807
[libx264 @ 000001ec0b750100] frame B:220 Avg QP:26.09 size: 1534
[libx264 @ 000001ec0b750100] consecutive B-frames: 2.3% 0.7% 0.0% 97.0%
[libx264 @ 000001ec0b750100] mb I I16..4: 19.6% 70.5% 9.9%
[libx264 @ 000001ec0b750100] mb P I16..4: 3.6% 3.3% 0.3% P16..4: 54.9% 11.7% 9.5% 0.0% 0.0% skip:16
.8%
[libx264 @ 000001ec0b750100] mb B I16..4: 0.1% 0.2% 0.0% B16..8: 28.2% 1.1% 0.2% direct: 7.9% skip:62
.2% L0:51.0% L1:45.9% BI: 3.1%
[libx264 @ 000001ec0b750100] 8x8 transform intra:56.1% inter:69.3%
[libx264 @ 000001ec0b750100] coded y,uvDC,uvAC intra: 35.2% 85.0% 30.8% inter: 9.3% 38.8% 1.5%
[libx264 @ 000001ec0b750100] i16 v,h,dc,p: 32% 34% 8% 27%
[libx264 @ 000001ec0b750100] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 33% 18% 28% 2% 3% 5% 3% 5% 3%
[libx264 @ 000001ec0b750100] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 40% 19% 8% 3% 6% 11% 4% 6% 3%
[libx264 @ 000001ec0b750100] i8c dc,h,v,p: 48% 16% 31% 5%
[libx264 @ 000001ec0b750100] Weighted P-Frames: Y:3.9% UV:1.3%
[libx264 @ 000001ec0b750100] ref P L0: 39.0% 6.6% 38.0% 16.3% 0.1%
[libx264 @ 000001ec0b750100] ref B L0: 61.8% 30.3% 7.9%
[libx264 @ 000001ec0b750100] ref B L1: 84.4% 15.6%
[libx264 @ 000001ec0b750100] kb/s:790.62 -
Open VideoStream using OpenCV 4.5.1 works on Windows but fails on Docker python:3.9.2-slim-buster for specific IP cam
18 mai 2021, par Qua285I have 2 ip cameras - one of Hikvision and another of Provision ISR. Both use Onvif and work on VLC.
I've written a simple python script to record images every 5 sec from their video stream.
On Windows 10, using VSCode they both work as expected. Once deployed to a Docker container, my script works as expected with the Hikvision but fails with the Provision ISR - it doesn't open the stream.


Running
python -c "import cv2; print(cv2.getBuildInformation())"on windows (venv 3.9.2) and on docker machine bring slightly different results but it's beyond my understanding to take something out of it...
Here is the Windows one :

General configuration for OpenCV 4.5.1 =====================================
 Version control: 4.5.1

 Platform:
 Timestamp: 2021-01-02T14:30:58Z
 Host: Windows 6.3.9600 AMD64
 CMake: 3.18.4
 CMake generator: Visual Studio 14 2015 Win64
 CMake build tool: C:/Program Files (x86)/MSBuild/14.0/bin/MSBuild.exe
 MSVC: 1900

 CPU/HW features:
 Baseline: SSE SSE2 SSE3
 requested: SSE3
 Dispatched code generation: SSE4_1 SSE4_2 FP16 AVX AVX2
 requested: SSE4_1 SSE4_2 AVX FP16 AVX2 AVX512_SKX
 SSE4_1 (15 files): + SSSE3 SSE4_1
 SSE4_2 (1 files): + SSSE3 SSE4_1 POPCNT SSE4_2
 FP16 (0 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 AVX
 AVX (4 files): + SSSE3 SSE4_1 POPCNT SSE4_2 AVX
 AVX2 (29 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2

 C/C++:
 Built as dynamic libs?: NO
 C++ standard: 11
 C++ Compiler: C:/Program Files (x86)/Microsoft Visual Studio 14.0/VC/bin/x86_amd64/cl.exe (ver 19.0.24241.7)
 C++ flags (Release): /DWIN32 /D_WINDOWS /W4 /GR /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /fp:precise /EHa /wd4127 /wd4251 /wd4324 /wd4275 /wd4512 /wd4589 
/MP /MT /O2 /Ob2 /DNDEBUG
 C++ flags (Debug): /DWIN32 /D_WINDOWS /W4 /GR /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /fp:precise /EHa /wd4127 /wd4251 /wd4324 /wd4275 /wd4512 /wd4589 
/MP /MTd /Zi /Ob0 /Od /RTC1
 C Compiler: C:/Program Files (x86)/Microsoft Visual Studio 14.0/VC/bin/x86_amd64/cl.exe
 C flags (Release): /DWIN32 /D_WINDOWS /W3 /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /fp:precise /MP /MT /O2 /Ob2 /DNDEBUG
 C flags (Debug): /DWIN32 /D_WINDOWS /W3 /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /fp:precise /MP /MTd /Zi /Ob0 /Od /RTC1
 Linker flags (Release): /machine:x64 /NODEFAULTLIB:atlthunk.lib /INCREMENTAL:NO /NODEFAULTLIB:libcmtd.lib /NODEFAULTLIB:libcpmtd.lib /NODEFAULTLIB:msvcrtd.lib
 Linker flags (Debug): /machine:x64 /NODEFAULTLIB:atlthunk.lib /debug /INCREMENTAL /NODEFAULTLIB:libcmt.lib /NODEFAULTLIB:libcpmt.lib /NODEFAULTLIB:msvcrt.lib
 ccache: NO
 Precompiled headers: YES
 Extra dependencies: ade wsock32 comctl32 gdi32 ole32 setupapi ws2_32
 3rdparty dependencies: ittnotify libprotobuf zlib libjpeg-turbo libwebp libpng libtiff libopenjp2 IlmImf quirc ippiw ippicv

 OpenCV modules:
 To be built: calib3d core dnn features2d flann gapi highgui imgcodecs imgproc ml objdetect photo python3 stitching video videoio
 Disabled: world
 Disabled by dependency: -
 Unavailable: java python2 ts
 Applications: -
 Documentation: NO
 Non-free algorithms: NO

 Windows RT support: NO

 GUI:
 Win32 UI: YES
 VTK support: NO

 Media I/O:
 ZLib: build (ver 1.2.11)
 JPEG: build-libjpeg-turbo (ver 2.0.6-62)
 WEBP: build (ver encoder: 0x020f)
 PNG: build (ver 1.6.37)
 TIFF: build (ver 42 - 4.0.10)
 JPEG 2000: build (ver 2.3.1)
 OpenEXR: build (ver 2.3.0)
 HDR: YES
 SUNRASTER: YES
 PXM: YES
 PFM: YES

 Video I/O:
 DC1394: NO
 FFMPEG: YES (prebuilt binaries)
 avcodec: YES (58.91.100)
 avformat: YES (58.45.100)
 avutil: YES (56.51.100)
 swscale: YES (5.7.100)
 avresample: YES (4.0.0)
 GStreamer: NO
 DirectShow: YES
 Media Foundation: YES
 DXVA: NO

 Parallel framework: Concurrency

 Trace: YES (with Intel ITT)

 Other third-party libraries:
 Intel IPP: 2020.0.0 Gold [2020.0.0]
 at: C:/Users/appveyor/AppData/Local/Temp/1/pip-req-build-wvn_it83/_skbuild/win-amd64-3.9/cmake-build/3rdparty/ippicv/ippicv_win/icv
 Intel IPP IW: sources (2020.0.0)
 at: C:/Users/appveyor/AppData/Local/Temp/1/pip-req-build-wvn_it83/_skbuild/win-amd64-3.9/cmake-build/3rdparty/ippicv/ippicv_win/iw
 Lapack: NO
 Eigen: NO
 Custom HAL: NO
 Protobuf: build (3.5.1)

 OpenCL: YES (NVD3D11)
 Include path: C:/Users/appveyor/AppData/Local/Temp/1/pip-req-build-wvn_it83/opencv/3rdparty/include/opencl/1.2
 Link libraries: Dynamic load

 Python 3:
 Interpreter: C:/Python39-x64/python.exe (ver 3.9)
 Libraries: C:/Python39-x64/libs/python39.lib (ver 3.9.0)
 numpy: C:/Users/appveyor/AppData/Local/Temp/1/pip-build-env-sk7r7w_5/overlay/Lib/site-packages/numpy/core/include (ver 1.19.3)
 install path: python

 Python (for build): C:/Python27-x64/python.exe

 Java:
 ant: NO
 JNI: C:/Program Files/Java/jdk1.8.0/include C:/Program Files/Java/jdk1.8.0/include/win32 C:/Program Files/Java/jdk1.8.0/include
 Java wrappers: NO
 Java tests: NO

 Install to: C:/Users/appveyor/AppData/Local/Temp/1/pip-req-build-wvn_it83/_skbuild/win-amd64-3.9/cmake-install
-----------------------------------------------------------------


this is the Docker one (python:3.9.2-slim-buster) :


General configuration for OpenCV 4.5.1 =====================================
 Version control: 4.5.1-dirty

 Platform:
 Timestamp: 2021-01-02T13:04:10Z
 Host: Linux 4.15.0-1077-gcp x86_64
 CMake: 3.18.4
 CMake generator: Unix Makefiles
 CMake build tool: /bin/gmake
 Configuration: Release

 CPU/HW features:
 Baseline: SSE SSE2 SSE3
 requested: SSE3
 Dispatched code generation: SSE4_1 SSE4_2 FP16 AVX AVX2 AVX512_SKX
 requested: SSE4_1 SSE4_2 AVX FP16 AVX2 AVX512_SKX
 SSE4_1 (15 files): + SSSE3 SSE4_1
 SSE4_2 (1 files): + SSSE3 SSE4_1 POPCNT SSE4_2
 FP16 (0 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 AVX
 AVX (4 files): + SSSE3 SSE4_1 POPCNT SSE4_2 AVX
 AVX2 (29 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2
 AVX512_SKX (4 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2 AVX_512F AVX512_COMMON AVX512_SKX

 C/C++:
 Built as dynamic libs?: NO
 C++ standard: 11
 C++ Compiler: /usr/lib/ccache/compilers/c++ (ver 9.3.1)
 C++ flags (Release): -Wl,-strip-all -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -msse -msse2 -msse3 -fvisibility=hidden -fvisibility-inlines-hidden -O3 -DNDEBUG -DNDEBUG
 C++ flags (Debug): -Wl,-strip-all -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -msse -msse2 -msse3 -fvisibility=hidden -fvisibility-inlines-hidden -g -O0 -DDEBUG -D_DEBUG
 C Compiler: /usr/lib/ccache/compilers/cc
 C flags (Release): -Wl,-strip-all -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Wno-comment -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -msse -msse2 -msse3 -fvisibility=hidden -O3 -DNDEBUG -DNDEBUG
 C flags (Debug): -Wl,-strip-all -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Wno-comment -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -msse -msse2 -msse3 -fvisibility=hidden -g -O0 -DDEBUG -D_DEBUG
 Linker flags (Release): -Wl,--exclude-libs,libippicv.a -Wl,--exclude-libs,libippiw.a -L/root/ffmpeg_build/lib -Wl,--gc-sections -Wl,--as-needed
 Linker flags (Debug): -Wl,--exclude-libs,libippicv.a -Wl,--exclude-libs,libippiw.a -L/root/ffmpeg_build/lib -Wl,--gc-sections -Wl,--as-needed
 ccache: YES
 Precompiled headers: NO
 Extra dependencies: ade Qt5::Core Qt5::Gui Qt5::Widgets Qt5::Test Qt5::Concurrent /lib64/libpng.so /lib64/libz.so dl m pthread rt
 3rdparty dependencies: ittnotify libprotobuf libjpeg-turbo libwebp libtiff libopenjp2 IlmImf quirc ippiw ippicv

 OpenCV modules:
 To be built: calib3d core dnn features2d flann gapi highgui imgcodecs imgproc ml objdetect photo python3 stitching video videoio
 Disabled: world
 Disabled by dependency: -
 Unavailable: java python2 ts
 Applications: -
 Documentation: NO
 Non-free algorithms: NO

 GUI:
 QT: YES (ver 5.15.0)
 QT OpenGL support: NO
 GTK+: NO
 VTK support: NO

 Media I/O:
 ZLib: /lib64/libz.so (ver 1.2.7)
 JPEG: libjpeg-turbo (ver 2.0.6-62)
 WEBP: build (ver encoder: 0x020f)
 PNG: /lib64/libpng.so (ver 1.5.13)
 TIFF: build (ver 42 - 4.0.10)
 JPEG 2000: build (ver 2.3.1)
 OpenEXR: build (ver 2.3.0)
 HDR: YES
 SUNRASTER: YES
 PXM: YES
 PFM: YES

 Video I/O:
 DC1394: NO
 FFMPEG: YES
 avcodec: YES (58.109.100)
 avformat: YES (58.61.100)
 avutil: YES (56.60.100)
 swscale: YES (5.8.100)
 avresample: NO
 GStreamer: NO
 v4l/v4l2: YES (linux/videodev2.h)

 Parallel framework: pthreads

 Trace: YES (with Intel ITT)

 Other third-party libraries:
 Intel IPP: 2020.0.0 Gold [2020.0.0]
 at: /tmp/pip-req-build-ddpkm6fn/_skbuild/linux-x86_64-3.9/cmake-build/3rdparty/ippicv/ippicv_lnx/icv
 Intel IPP IW: sources (2020.0.0)
 at: /tmp/pip-req-build-ddpkm6fn/_skbuild/linux-x86_64-3.9/cmake-build/3rdparty/ippicv/ippicv_lnx/iw
 Lapack: NO
 Eigen: NO
 Custom HAL: NO
 Protobuf: build (3.5.1)

 OpenCL: YES (no extra features)
 Include path: /tmp/pip-req-build-ddpkm6fn/opencv/3rdparty/include/opencl/1.2
 Link libraries: Dynamic load

 Python 3:
 Interpreter: /opt/python/cp39-cp39/bin/python (ver 3.9)
 Libraries: libpython3.9.a (ver 3.9.0)
 numpy: /tmp/pip-build-env-jqrfyj0w/overlay/lib/python3.9/site-packages/numpy/core/include (ver 1.19.3)
 install path: python

 Python (for build): /bin/python2.7

 Java:
 ant: NO
 JNI: NO
 Java wrappers: NO
 Java tests: NO

 Install to: /tmp/pip-req-build-ddpkm6fn/_skbuild/linux-x86_64-3.9/cmake-install
-----------------------------------------------------------------


If relevant, the docker is installed on an Intel NUC with Ubuntu Desktop 20.04


If relevant, this is the dockerfile I've used to build the image :


FROM python:3.9.2-slim-buster as builder

# Keeps Python from generating .pyc files in the container
ENV PYTHONDONTWRITEBYTECODE=1
# Without this setting, Python never prints anything out.
ENV PYTHONUNBUFFERED=1

RUN pip install --upgrade pip
COPY ./Cam/requirements.txt .
RUN pip install -r requirements.txt
RUN apt-get update
RUN apt-get install ffmpeg libsm6 libxext6 -y

WORKDIR /app

FROM builder
COPY ./Cam .
CMD ["python", "camStreamer.py"]


and last, this is the script code (simplified) :


import os, logging, threading
from os.path import join
import sys, inspect, datetime, time
from pathlib import Path
import cv2
import imutils
from imutils.video import VideoStream

def StartRecording(showVideoWindow, interval, imagePath):
 key = None
 cam = VideoStream(os.getenv("CAM_RTSP")).start()
 counter = 0
 try:
 while True:
 ## 2 min retry to connect if frame is None
 if counter > 60/interval*2: break

 ts = time.time()
 ## Wait for [interval] seconds
 while ts + interval > time.time():
 continue
 print(f"Counter: {counter}, ts: {str(ts)}")

 frame = cam.read()
 if frame is None:
 counter += 1
 continue
 counter = 0

 print("frame is valid")
 if showVideoWindow:
 frame = imutils.resize(frame, width=1200)
 cv2.imshow('VIDEO', frame)

 imageName = f"{datetime.datetime.fromtimestamp(ts).strftime('%Y-%m-%dT%H_%M_%S')}.jpg"
 cv2.imwrite(join(imagePath, imageName), frame)
 print("saved image to disk")

 key = cv2.waitKey(1) & 0xFF
 if key == ord('q') or key == ord('r'):
 break

 except Exception as e:
 exc_tb = sys.exc_info()[2]
 extra = ""
 print(f"{inspect.stack()[0][3]}: {e} (lineno: {exc_tb.tb_lineno}) {extra}")
 finally:
 if showVideoWindow: cv2.destroyAllWindows()
 cam.stop()
 return key


while True:
 log.warning(f"Starting {Name}")
 key = StartRecording(
 showVideoWindow=(Env.startswith("development") and os.getenv("SHOW_VIDEO") == "True"),
 interval=int(os.getenv("SAVE_IMAGE_INTERVAL")),
 imagePath=os.getenv('CAPTURE_FOLDER')
 )
 if key == ord('q'):
 break


I apologize for the very long post. Hopefully someone can put me on the right direction...


-
Is it possible to download ffmpeg to docker with base image : python:3.8-slim-buster
28 juillet 2022, par ali-akkayaI am trying to download audio from Youtube, preferably .flac, and I need to run my code inside Docker.
If I use ubuntu image there is no problem I can download it with apt. However ubuntu image need 1.2 GB space.
I want to use python image. How can I do that ?


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