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Rennes Emotion Map 2010-11
19 octobre 2011, par
Mis à jour : Juillet 2013
Langue : français
Type : Texte
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Participer à sa traduction
10 avril 2011Vous pouvez nous aider à améliorer les locutions utilisées dans le logiciel ou à traduire celui-ci dans n’importe qu’elle nouvelle langue permettant sa diffusion à de nouvelles communautés linguistiques.
Pour ce faire, on utilise l’interface de traduction de SPIP où l’ensemble des modules de langue de MediaSPIP sont à disposition. ll vous suffit de vous inscrire sur la liste de discussion des traducteurs pour demander plus d’informations.
Actuellement MediaSPIP n’est disponible qu’en français et (...) -
List of compatible distributions
26 avril 2011, parThe table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...) -
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Sur d’autres sites (8253)
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FFMPEG Video loop from images files
27 février 2020, par Nesan ManoI am trying to make a video from a bundle of image files and then apply a an overlay on top of it.Another requirement is to make the video loop 3x. It is simply not working.
The first three paths are pointing toward the same image bundle. (A folder containing images like the following DSC0001_0013.jpg,DSC0002_0013.jpg,etc)
Observed symptoms :
The script runs infinitely.I produces a video file of 0 KB.I have to abort script using CTRL+C
This is my script.
ffmpeg
-start_number 1 -framerate 3/1
-i "C:\Users\xxx\AppData\Local\xxx\xxx\xxx\xxx\xxx\xxx\xxx\963d9d9b8e1\DSC%04d_0013.jpg"
-i "C:\Users\xxx\AppData\Local\xxx\xxx\projects\xxx\xxx\xxx\xxx\963d9d9b8e1\DSC%04d_0013.jpg"
-i "C:\Users\xxx\AppData\Local\xxx\xxx\projects\xxx\xxx\xxx\xxx\963d9d9b8e1\DSC%04d_0013.jpg"
-i "C:\Users\xxx\AppData\Local\xxx\xxx\projects\1237\1138\overlay.png"
-i "C:\Users\xxx\AppData\Local\xxx\xxx\projects\1237\1138\overlay.png"
-i "C:\Users\xxx\AppData\Local\xxx\xxx\projects\1237\1138\overlay.png"
-filter_complex " [0:v]scale=600x900[scaled1]; [1:v]scale=600x900[scaled2]; [2:v]scale=600x900[scaled3]; [scaled1][3:v]overlay[tmp1]; [scaled2][4:v]overlay[tmp2]; [scaled3][5:v]overlay[tmp3]; [tmp1][tmp2][tmp3]concat=n=3[scaled] "
-map [scaled] -r 10 -vcodec libx264 -pix_fmt yuv420p -crf 23 "C:\Users\xxx\Documents\Projets\2020\xxx\video test ffmpeg\test.mp4" -
Unable to properly save video in android ffmpeg app
22 mars 2021, par connor449I am trying to record and save a video with an ffmpeg app on android 10. I'm very new to android/mobile development.


Here is my manifest file :


<?xml version="1.0" encoding="utf-8"?>
<manifest package="com.example.camera">
 
 
 

 


 
 <activity>
 
 
 </activity> <activity>
 
 <action></action>

 <category></category>
 
 </activity>
 


</manifest>


As you can see, I am specifying permission to read/write data.


Here is my mainActivity :


package com.example.camera

//import android.R
import android.content.DialogInterface
import android.content.pm.PackageManager
import android.os.Build
import android.os.Bundle
import android.widget.Toast
import androidx.appcompat.app.AlertDialog
import androidx.appcompat.app.AppCompatActivity
import androidx.core.app.ActivityCompat
import androidx.core.content.ContextCompat
import com.arthenica.mobileffmpeg.FFmpeg


const val EXTRA_MESSAGE = "com.example.myfirstapp.MESSAGE"

class MainActivity : AppCompatActivity() {
 override fun onCreate(savedInstanceState: Bundle?) {
 super.onCreate(savedInstanceState)
 setContentView(R.layout.activity_main)
 if (checkPermission()) {
 //main logic or main code
 FFmpeg.execute("-f android_camera -i 0:0 -r 30 -crf 0 -pixel_format yuv420p -t 00:00:05 test.mp4")

 // . write your main code to execute, It will execute if the permission is already given.
 } else {
 requestPermission()
 }
 }

 fun sendMessage(view:android.view.View){


 }

 private fun checkPermission(): Boolean {
 return if (ContextCompat.checkSelfPermission(this, android.Manifest.permission.CAMERA)
 != PackageManager.PERMISSION_GRANTED
 ) {
 // Permission is not granted
 false
 } else true
 }

 private fun requestPermission() {
 ActivityCompat.requestPermissions(
 this, arrayOf(android.Manifest.permission.CAMERA),
 PERMISSION_REQUEST_CODE
 )
 }

 override fun onRequestPermissionsResult(
 requestCode: Int,
 permissions: Array<string>,
 grantResults: IntArray
 ) {
 when (requestCode) {
 PERMISSION_REQUEST_CODE -> if (grantResults.size > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED
 ) {
 Toast.makeText(applicationContext, "Permission Granted", Toast.LENGTH_SHORT)
 .show()

 // main logic
 } else {
 Toast.makeText(applicationContext, "Permission Denied", Toast.LENGTH_SHORT)
 .show()
 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 if (ContextCompat.checkSelfPermission(this, android.Manifest.permission.CAMERA)
 != PackageManager.PERMISSION_GRANTED
 ) {
 showMessageOKCancel("You need to allow access permissions",
 DialogInterface.OnClickListener { dialog, which ->
 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 requestPermission()
 }
 })
 }
 }
 }
 }
 }

 private fun showMessageOKCancel(
 message: String,
 okListener: DialogInterface.OnClickListener
 ) {
 AlertDialog.Builder(this@MainActivity)
 .setMessage(message)
 .setPositiveButton("OK", okListener)
 .setNegativeButton("Cancel", null)
 .create()
 .show()
 }

 companion object {
 private const val PERMISSION_REQUEST_CODE = 200
 }
}

</string>

Here is my error message in the logs :


2021-03-22 16:31:34.509 9365-9448/com.example.camera I/AdrenoGLES: QUALCOMM build : 85037b7, I6e8b82193e
 Build Date : 12/19/19
 OpenGL ES Shader Compiler Version: EV031.27.05.03
 Local Branch : 
 Remote Branch : refs/tags/AU_LINUX_ANDROID_LA.UM.8.11.R1.10.00.00.576.016
 Remote Branch : NONE
 Reconstruct Branch : NOTHING
2021-03-22 16:31:34.509 9365-9448/com.example.camera I/AdrenoGLES: Build Config : S P 8.0.12 AArch64
2021-03-22 16:31:34.512 9365-9448/com.example.camera I/AdrenoGLES: PFP: 0x016ee187, ME: 0x00000000
2021-03-22 16:31:55.745 9365-9480/com.example.camera I/mobile-ffmpeg: ffmpeg version v4.4-dev-416
2021-03-22 16:31:55.745 9365-9480/com.example.camera I/mobile-ffmpeg: Copyright (c) 2000-2020 the FFmpeg developers
2021-03-22 16:31:55.746 9365-9480/com.example.camera I/mobile-ffmpeg: built with Android (6454773 based on r365631c2) clang version 9.0.8 (https://android.googlesource.com/toolchain/llvm-project 98c855489587874b2a325e7a516b99d838599c6f) (based on LLVM 9.0.8svn)
2021-03-22 16:31:55.746 9365-9480/com.example.camera I/mobile-ffmpeg: configuration: --cross-prefix=aarch64-linux-android- --sysroot=/files/android-sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/linux-x86_64/sysroot --prefix=/home/taner/Projects/mobile-ffmpeg/prebuilt/android-arm64/ffmpeg --pkg-config=/usr/bin/pkg-config --enable-version3 --arch=aarch64 --cpu=armv8-a --cc=aarch64-linux-android24-clang --cxx=aarch64-linux-android24-clang++ --extra-libs='-L/home/taner/Projects/mobile-ffmpeg/prebuilt/android-arm64/cpu-features/lib -lndk_compat' --target-os=android --enable-neon --enable-asm --enable-inline-asm --enable-cross-compile --enable-pic --enable-jni --enable-optimizations --enable-swscale --enable-shared --enable-v4l2-m2m --disable-outdev=fbdev --disable-indev=fbdev --enable-small --disable-openssl --disable-xmm-clobber-test --disable-debug --enable-lto --disable-neon-clobber-test --disable-programs --disable-postproc --disable-doc --disable-htmlpages --disable-manpages --disable-podpages --disable-txtpages --disable-static --disable-sndio --disable-schannel --disable-securetransport --disable-xlib --disable-cuda --disable-cuvid --disable-nvenc --disable-vaapi --disable-vdpau --disable-videotoolbox --disable-audiotoolbox --disable-appkit --disable-alsa --disable-cuda --disable-cuvid --disable-nvenc --disable-vaapi --disable-vdpau --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-gmp --enable-gnutls --enable-libmp3lame --enable-libass --enable-iconv --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libxml2 --enable-libopencore-amrnb --enable-libshine --enable-libspeex --enable-libwavpack --enable-libkvazaar --enable-libilbc --enable-libopus --enable-libsnappy --enable-libsoxr --enable-libaom --enable-libtwolame --disable-sdl2 --enable-libvo-amrwbenc --enable-zlib --enable-mediacodec
2021-03-22 16:31:55.746 9365-9480/com.example.camera I/mobile-ffmpeg: libavutil 56. 55.100 / 56. 55.100
2021-03-22 16:31:55.746 9365-9480/com.example.camera I/mobile-ffmpeg: libavcodec 58. 96.100 / 58. 96.100
2021-03-22 16:31:55.746 9365-9480/com.example.camera I/mobile-ffmpeg: libavformat 58. 48.100 / 58. 48.100
2021-03-22 16:31:55.746 9365-9480/com.example.camera I/mobile-ffmpeg: libavdevice 58. 11.101 / 58. 11.101
2021-03-22 16:31:55.746 9365-9480/com.example.camera I/mobile-ffmpeg: libavfilter 7. 87.100 / 7. 87.100
2021-03-22 16:31:55.746 9365-9480/com.example.camera I/mobile-ffmpeg: libswscale 5. 8.100 / 5. 8.100
2021-03-22 16:31:55.746 9365-9480/com.example.camera I/mobile-ffmpeg: libswresample 3. 8.100 / 3. 8.100
2021-03-22 16:31:55.750 9365-9365/com.example.camera E/ACameraMetadata: filterDurations: malformed duration key 1638402! count 0, type 3
2021-03-22 16:31:55.750 9365-9365/com.example.camera E/ACameraMetadata: filterDurations: malformed duration key 1638403! count 0, type 3
2021-03-22 16:31:55.750 9365-9365/com.example.camera E/ACameraMetadata: filterDurations: malformed duration key 1835009! count 0, type 3
2021-03-22 16:31:55.750 9365-9365/com.example.camera E/ACameraMetadata: filterDurations: malformed duration key 1835010! count 0, type 3
2021-03-22 16:31:55.750 9365-9365/com.example.camera E/ACameraMetadata: filterDurations: malformed duration key 1638407! count 0, type 3
2021-03-22 16:31:55.750 9365-9365/com.example.camera E/ACameraMetadata: filterDurations: malformed duration key 1638408! count 0, type 0
2021-03-22 16:31:55.751 9365-9365/com.example.camera E/ACameraMetadata: filterDurations: malformed duration key 1638402! count 0, type 3
2021-03-22 16:31:55.751 9365-9365/com.example.camera E/ACameraMetadata: filterDurations: malformed duration key 1638403! count 0, type 3
2021-03-22 16:31:55.751 9365-9365/com.example.camera E/ACameraMetadata: filterDurations: malformed duration key 1835009! count 0, type 3
2021-03-22 16:31:55.751 9365-9365/com.example.camera E/ACameraMetadata: filterDurations: malformed duration key 1835010! count 0, type 3
2021-03-22 16:31:55.751 9365-9365/com.example.camera E/ACameraMetadata: filterDurations: malformed duration key 1638407! count 0, type 3
2021-03-22 16:31:55.751 9365-9365/com.example.camera E/ACameraMetadata: filterDurations: malformed duration key 1638408! count 0, type 0
2021-03-22 16:31:55.797 9365-9480/com.example.camera W/mobile-ffmpeg: [android_camera @ 0x726794b600] Requested video_size 0x0 not available, falling back to 4608x3456
2021-03-22 16:31:55.804 9365-9480/com.example.camera I/mobile-ffmpeg: [android_camera @ 0x726794b600] Android camera capture session is active.
2021-03-22 16:31:56.097 9365-9480/com.example.camera I/mobile-ffmpeg: Input #0, android_camera, from '0:0':
2021-03-22 16:31:56.098 9365-9480/com.example.camera I/mobile-ffmpeg: Duration: 
2021-03-22 16:31:56.098 9365-9480/com.example.camera I/mobile-ffmpeg: N/A
2021-03-22 16:31:56.098 9365-9480/com.example.camera I/mobile-ffmpeg: , start: 
2021-03-22 16:31:56.098 9365-9480/com.example.camera I/mobile-ffmpeg: 28486.157692
2021-03-22 16:31:56.098 9365-9480/com.example.camera I/mobile-ffmpeg: , bitrate: 
2021-03-22 16:31:56.098 9365-9480/com.example.camera I/mobile-ffmpeg: N/A
2021-03-22 16:31:56.098 9365-9480/com.example.camera I/mobile-ffmpeg: Stream #0:0
2021-03-22 16:31:56.098 9365-9480/com.example.camera I/mobile-ffmpeg: : Video: rawvideo (NV21 / 0x3132564E), nv21, 4608x3456
2021-03-22 16:31:56.098 9365-9480/com.example.camera I/mobile-ffmpeg: , 
2021-03-22 16:31:56.098 9365-9480/com.example.camera I/mobile-ffmpeg: 30 fps, 
2021-03-22 16:31:56.098 9365-9480/com.example.camera I/mobile-ffmpeg: 30 tbr, 
2021-03-22 16:31:56.098 9365-9480/com.example.camera I/mobile-ffmpeg: 1000000000.00 tbn, 
2021-03-22 16:31:56.098 9365-9480/com.example.camera I/mobile-ffmpeg: 1000000000.00 tbc
2021-03-22 16:31:56.098 9365-9480/com.example.camera I/mobile-ffmpeg: Side data:
2021-03-22 16:31:56.098 9365-9480/com.example.camera I/mobile-ffmpeg: 
2021-03-22 16:31:56.098 9365-9480/com.example.camera I/mobile-ffmpeg: displaymatrix: rotation of -90.00 degrees
2021-03-22 16:31:56.098 9365-9480/com.example.camera W/mobile-ffmpeg: Codec AVOption crf (Select the quality for constant quality mode) specified for output file #0 (test.mp4) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.
2021-03-22 16:31:56.098 9365-9480/com.example.camera E/mobile-ffmpeg: test.mp4: Read-only file system
2021-03-22 16:31:56.259 9365-9392/com.example.camera D/ACameraDevice: Device error received, code 5, frame number 1, request ID 0, subseq ID 0
2021-03-22 16:31:56.260 9365-9666/com.example.camera D/ACameraDevice: Device error received, code 5, frame number 2, request ID 0, subseq ID 0
2021-03-22 16:31:56.260 9365-9666/com.example.camera D/ACameraDevice: Device error received, code 5, frame number 3, request ID 0, subseq ID 0
2021-03-22 16:31:56.260 9365-9666/com.example.camera D/ACameraDevice: Device error received, code 3, frame number 4, request ID 0, subseq ID 0
2021-03-22 16:31:56.260 9365-9666/com.example.camera D/ACameraDevice: Device error received, code 3, frame number 5, request ID 0, subseq ID 0
2021-03-22 16:31:56.261 9365-9666/com.example.camera D/ACameraDevice: Device error received, code 3, frame number 6, request ID 0, subseq ID 0
2021-03-22 16:31:56.607 9365-9365/com.example.camera W/ACameraCaptureSession: Device is closed but session 0 is not notified
2021-03-22 16:31:56.608 9365-9480/com.example.camera I/mobile-ffmpeg: [android_camera @ 0x726794b600] Android camera capture session was closed.
2021-03-22 16:31:56.637 9365-9365/com.example.camera I/Choreographer: Skipped 58 frames! The application may be doing too much work on its main thread.
2021-03-22 16:31:56.678 9365-9448/com.example.camera I/OpenGLRenderer: Davey! duration=1018ms; Flags=1, IntendedVsync=17591318171185, Vsync=17592284837813, OldestInputEvent=9223372036854775807, NewestInputEvent=0, HandleInputStart=17592296938401, AnimationStart=17592297214183, PerformTraversalsStart=17592304079965, DrawStart=17592327848144, SyncQueued=17592334185436, SyncStart=17592334982572, IssueDrawCommandsStart=17592335124343, SwapBuffers=17592336519968, FrameCompleted=17592337443926, DequeueBufferDuration=165000, QueueBufferDuration=255000, 


The error I'm particularity confused about is :


2021-03-22 16:31:56.098 9365-9480/com.example.camera E/mobile-ffmpeg: test.mp4: Read-only file system


I thought I specified the appropriate permissions in the manifest file ? Please advise.


-
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...


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