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Elephants Dream - Cover of the soundtrack
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Autres articles (107)
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Les formats acceptés
28 janvier 2010, parLes commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
ffmpeg -codecs ffmpeg -formats
Les format videos acceptés en entrée
Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
Les formats vidéos de sortie possibles
Dans un premier temps on (...) -
Encoding and processing into web-friendly formats
13 avril 2011, parMediaSPIP automatically converts uploaded files to internet-compatible formats.
Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
All uploaded files are stored online in their original format, so you can (...) -
Contribute to documentation
13 avril 2011Documentation is vital to the development of improved technical capabilities.
MediaSPIP welcomes documentation by users as well as developers - including : critique of existing features and functions articles contributed by developers, administrators, content producers and editors screenshots to illustrate the above translations of existing documentation into other languages
To contribute, register to the project users’ mailing (...)
Sur d’autres sites (6259)
-
Receive RTMP stream with OpenCV (python)
12 février 2024, par OvernoutI'm trying to process an RTMP stream in Python, using OpenCV2 but I'm not able to get OpenCV to capture it.


I can run FFmpeg/FFplay from the command line and receive the stream successfully.
What could cause OpenCV to fail opening the stream in listening mode ?


Here is my code :


import cv2

cap = cv2.VideoCapture("rtmp://0.0.0.0/live/stream", cv2.CAP_FFMPEG)

if not cap.isOpened():
 print("Cannot open video source")
 exit()



And the output :


[tcp @ 00000192c490d640] Connection to tcp://0.0.0.0:1935 failed: Error number -138 occurred
[rtmp @ 00000192c490d580] Cannot open connection tcp://0.0.0.0:1935 Cannot open video source



Here is the output of cv2.getBuildInformation()


General configuration for OpenCV 4.9.0 =====================================
 Version control: 4.9.0

 Platform:
 Timestamp: 2023-12-31T11:21:12Z
 Host: Windows 10.0.17763 AMD64
 CMake: 3.24.2
 CMake generator: Visual Studio 14 2015
 CMake build tool: MSBuild.exe
 MSVC: 1900
 Configuration: Debug Release

 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 (16 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 (8 files): + SSSE3 SSE4_1 POPCNT SSE4_2 AVX
 AVX2 (36 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 19.0.24247.2)
 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 /wd4819 /MP /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 /wd4819 /MP /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 /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 /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: wsock32 comctl32 gdi32 ole32 setupapi ws2_32
 3rdparty dependencies: libprotobuf ade ittnotify libjpeg-turbo libwebp libpng libtiff libopenjp2 IlmImf zlib ippiw ippicv

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

 Windows RT support: NO

 GUI: WIN32UI
 Win32 UI: YES
 VTK support: NO

 Media I/O: 
 ZLib: build (ver 1.3)
 JPEG: build-libjpeg-turbo (ver 2.1.3-62)
 SIMD Support Request: YES
 SIMD Support: NO
 WEBP: build (ver encoder: 0x020f)
 PNG: build (ver 1.6.37)
 TIFF: build (ver 42 - 4.2.0)
 JPEG 2000: build (ver 2.5.0)
 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 (58.134.100)
 avformat: YES (58.76.100)
 avutil: YES (56.70.100)
 swscale: YES (5.9.100)
 avresample: YES (4.0.0)
 GStreamer: NO
 DirectShow: YES
 Media Foundation: YES
 DXVA: YES

 Parallel framework: Concurrency

 Trace: YES (with Intel ITT)

 Other third-party libraries:
 Intel IPP: 2021.11.0 [2021.11.0]
 at: D:/a/opencv-python/opencv-python/_skbuild/win-amd64-3.7/cmake-build/3rdparty/ippicv/ippicv_win/icv
 Intel IPP IW: sources (2021.11.0)
 at: D:/a/opencv-python/opencv-python/_skbuild/win-amd64-3.7/cmake-build/3rdparty/ippicv/ippicv_win/iw
 Lapack: NO
 Eigen: NO
 Custom HAL: NO
 Protobuf: build (3.19.1)
 Flatbuffers: builtin/3rdparty (23.5.9)

 OpenCL: YES (NVD3D11)
 Include path: D:/a/opencv-python/opencv-python/opencv/3rdparty/include/opencl/1.2
 Link libraries: Dynamic load

 Python 3:
 Interpreter: C:/hostedtoolcache/windows/Python/3.7.9/x64/python.exe (ver 3.7.9)
 Libraries: C:/hostedtoolcache/windows/Python/3.7.9/x64/libs/python37.lib (ver 3.7.9)
 numpy: C:/hostedtoolcache/windows/Python/3.7.9/x64/lib/site-packages/numpy/core/include (ver 1.17.0)
 install path: python/cv2/python-3

 Python (for build): C:\hostedtoolcache\windows\Python\3.7.9\x64\python.exe

 Java: 
 ant: NO
 Java: YES (ver 1.8.0.392)
 JNI: C:/hostedtoolcache/windows/Java_Temurin-Hotspot_jdk/8.0.392-8/x64/include C:/hostedtoolcache/windows/Java_Temurin-Hotspot_jdk/8.0.392-8/x64/include/win32 C:/hostedtoolcache/windows/Java_Temurin-Hotspot_jdk/8.0.392-8/x64/include
 Java wrappers: NO
 Java tests: NO

 Install to: D:/a/opencv-python/opencv-python/_skbuild/win-amd64-3.7/cmake-install
-----------------------------------------------------------------



-
AWS Lambda failed to resolve hostname in child_process spawn
28 mars 2024, par warlyi'm trying to get ffmpeg working in AWS Lambda reading from and writing to S3. I crawled through dozens of aws documentations, stackoverflow questions and blog posts. All do it slightly different, but in the end none of them worked for me. So I hope to find help here :)
I sticked to the tutorial from InPlainEnglish : https://plainenglish.io/community/automated-video-processing-with-aws-lambda-and-ffmpeg-2834b7


The ffprobe command does work, so ffmpeg is callable. But when calling ffmpeg within a child_process.spawn command i get the error
Failed to resolve hostname my-bucket.s3.eu-central-1.amazonaws.com: System error


export const handler = async (event) => {
 const s3 = new S3Client({});
 const bucket = event.Records[0].s3.bucket.name;
 const sourceKey = event.Records[0].s3.object.key;
 const sourceURL = await getSignedUrl(s3, new GetObjectCommand({
 Bucket: bucket,
 Key: sourceKey,
 }), {
 expiresIn: 900,
 });

 const tmpFilePath = 'tmp/video.mp4';
 const { convertOut } = await commander(`/opt/ffmpeg -i "${sourceURL}" -vf scale=1080:-2,format=yuv420p ${tmpFilePath}`);

 return {
 statusCode: 200,
 body: {
 result: JSON.stringify(convertOut),
 },
 };
};



the signed url is fine. I've tested it with vanilla js
await fetch(sourceURL)
and it returned the file. The problem is that for some reason the child_process has no internet access.

if anyone is able to point me in the right direction i would appreciate it :D


Full error message :


{
 "errorType": "Error",
 "errorMessage": "Command failed: /opt/ffmpeg -i \"https://my-bucket.s3.eu-central-1.amazonaws.com/original/Testvideo.MOV?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential={redacted}&X-Amz-Date=20240209T212255Z&X-Amz-Expires=900&X-Amz-Security-Token={redacted}&X-Amz-Signature={redacted}&X-Amz-SignedHeaders=host&x-id=GetObject\" -vf scale=1080:-2,crop=1080:1350,format=yuv420p tmp/video.mp4\nffmpeg version 6.1-static https://johnvansickle.com/ffmpeg/ Copyright (c) 2000-2023 the FFmpeg developers\n built with gcc 8 (Debian 8.3.0-6)\n configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp --enable-libgme --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libdav1d --enable-libxvid --enable-libzimg\n libavutil 58. 29.100 / 58. 29.100\n libavcodec 60. 31.102 / 60. 31.102\n libavformat 60. 16.100 / 60. 16.100\n libavdevice 60. 3.100 / 60. 3.100\n libavfilter 9. 12.100 / 9. 12.100\n libswscale 7. 5.100 / 7. 5.100\n libswresample 4. 12.100 / 4. 12.100\n libpostproc 57. 3.100 / 57. 3.100\n[tcp @ 0x141950d0] Failed to resolve hostname my-bucket.s3.eu-central-1.amazonaws.com: System error\n[in#0 @ 0x14190900] Error opening input: Input/output error\nError opening input file https://my-bucket.s3.eu-central-1.amazonaws.com/original/Testvideo.MOV?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential={redacted}&X-Amz-Date=20240209T212255Z&X-Amz-Expires=900&X-Amz-Security-Token={redacted}&X-Amz-Signature={redacted}&X-Amz-SignedHeaders=host&x-id=GetObject.\nError opening input files: Input/output error\n",
 "trace": [
 "Error: Command failed: /opt/ffmpeg -i \"https://my-bucket.s3.eu-central-1.amazonaws.com/original/Testvideo.MOV?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential={redacted}&X-Amz-Date=20240209T212255Z&X-Amz-Expires=900&X-Amz-Security-Token={redacted}&X-Amz-Signature={redacted}&X-Amz-SignedHeaders=host&x-id=GetObject\" -vf scale=1080:-2,crop=1080:1350,format=yuv420p tmp/video.mp4",
 "ffmpeg version 6.1-static https://johnvansickle.com/ffmpeg/ Copyright (c) 2000-2023 the FFmpeg developers",
 " built with gcc 8 (Debian 8.3.0-6)",
 " configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp --enable-libgme --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libdav1d --enable-libxvid --enable-libzimg",
 " libavutil 58. 29.100 / 58. 29.100",
 " libavcodec 60. 31.102 / 60. 31.102",
 " libavformat 60. 16.100 / 60. 16.100",
 " libavdevice 60. 3.100 / 60. 3.100",
 " libavfilter 9. 12.100 / 9. 12.100",
 " libswscale 7. 5.100 / 7. 5.100",
 " libswresample 4. 12.100 / 4. 12.100",
 " libpostproc 57. 3.100 / 57. 3.100",
 "[tcp @ 0x141950d0] Failed to resolve hostname my-bucket.s3.eu-central-1.amazonaws.com: System error",
 "[in#0 @ 0x14190900] Error opening input: Input/output error",
 "Error opening input file https://my-bucket.s3.eu-central-1.amazonaws.com/original/Testvideo.MOV?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential={redacted}&X-Amz-Date=20240209T212255Z&X-Amz-Expires=900&X-Amz-Security-Token={redacted}&X-Amz-Signature={redacted}&X-Amz-SignedHeaders=host&x-id=GetObject.",
 "Error opening input files: Input/output error",
 "",
 " at ChildProcess.exithandler (node:child_process:422:12)",
 " at ChildProcess.emit (node:events:518:28)",
 " at maybeClose (node:internal/child_process:1105:16)",
 " at ChildProcess._handle.onexit (node:internal/child_process:305:5)"
 ]
}
enter code here



Update : Turns out it is not S3 or internet, but the child_process which does not seem to have internet access. I've update my description above.


-
AWS Lambda failed to resolve hostname on S3 signed url
9 février 2024, par warlyi'm trying to get ffmpeg working in AWS Lambda reading from and writing to S3. I crawled through dozens of aws documentations, stackoverflow questions and blog posts. All do it slightly different, but in the end none of them worked for me. So I hope to find help here :)
I sticked to the tutorial from InPlainEnglish : https://plainenglish.io/community/automated-video-processing-with-aws-lambda-and-ffmpeg-2834b7


The ffprobe command does work, so ffmpeg is callable. But when calling ffmpeg with an S3 signed url i get the error
Failed to resolve hostname my-bucket.s3.eu-central-1.amazonaws.com: System error


export const handler = async (event) => {
 const s3 = new S3Client({});
 const bucket = event.Records[0].s3.bucket.name;
 const sourceKey = event.Records[0].s3.object.key;
 const sourceURL = await getSignedUrl(s3, new GetObjectCommand({
 Bucket: bucket,
 Key: sourceKey,
 }), {
 expiresIn: 900,
 });

 const tmpFilePath = 'tmp/video.mp4';
 const { convertOut } = await commander(`/opt/ffmpeg -i "${sourceURL}" -vf scale=1080:-2,format=yuv420p ${tmpFilePath}`);

 return {
 statusCode: 200,
 body: {
 result: JSON.stringify(convertOut),
 },
 };
};



if anyone is able to point me in the right direction i would appreciate it :D


Full error message :


{
 "errorType": "Error",
 "errorMessage": "Command failed: /opt/ffmpeg -i \"https://my-bucket.s3.eu-central-1.amazonaws.com/original/Testvideo.MOV?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential={redacted}&X-Amz-Date=20240209T212255Z&X-Amz-Expires=900&X-Amz-Security-Token={redacted}&X-Amz-Signature={redacted}&X-Amz-SignedHeaders=host&x-id=GetObject\" -vf scale=1080:-2,crop=1080:1350,format=yuv420p tmp/video.mp4\nffmpeg version 6.1-static https://johnvansickle.com/ffmpeg/ Copyright (c) 2000-2023 the FFmpeg developers\n built with gcc 8 (Debian 8.3.0-6)\n configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp --enable-libgme --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libdav1d --enable-libxvid --enable-libzimg\n libavutil 58. 29.100 / 58. 29.100\n libavcodec 60. 31.102 / 60. 31.102\n libavformat 60. 16.100 / 60. 16.100\n libavdevice 60. 3.100 / 60. 3.100\n libavfilter 9. 12.100 / 9. 12.100\n libswscale 7. 5.100 / 7. 5.100\n libswresample 4. 12.100 / 4. 12.100\n libpostproc 57. 3.100 / 57. 3.100\n[tcp @ 0x141950d0] Failed to resolve hostname my-bucket.s3.eu-central-1.amazonaws.com: System error\n[in#0 @ 0x14190900] Error opening input: Input/output error\nError opening input file https://my-bucket.s3.eu-central-1.amazonaws.com/original/Testvideo.MOV?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential={redacted}&X-Amz-Date=20240209T212255Z&X-Amz-Expires=900&X-Amz-Security-Token={redacted}&X-Amz-Signature={redacted}&X-Amz-SignedHeaders=host&x-id=GetObject.\nError opening input files: Input/output error\n",
 "trace": [
 "Error: Command failed: /opt/ffmpeg -i \"https://my-bucket.s3.eu-central-1.amazonaws.com/original/Testvideo.MOV?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential={redacted}&X-Amz-Date=20240209T212255Z&X-Amz-Expires=900&X-Amz-Security-Token={redacted}&X-Amz-Signature={redacted}&X-Amz-SignedHeaders=host&x-id=GetObject\" -vf scale=1080:-2,crop=1080:1350,format=yuv420p tmp/video.mp4",
 "ffmpeg version 6.1-static https://johnvansickle.com/ffmpeg/ Copyright (c) 2000-2023 the FFmpeg developers",
 " built with gcc 8 (Debian 8.3.0-6)",
 " configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp --enable-libgme --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libdav1d --enable-libxvid --enable-libzimg",
 " libavutil 58. 29.100 / 58. 29.100",
 " libavcodec 60. 31.102 / 60. 31.102",
 " libavformat 60. 16.100 / 60. 16.100",
 " libavdevice 60. 3.100 / 60. 3.100",
 " libavfilter 9. 12.100 / 9. 12.100",
 " libswscale 7. 5.100 / 7. 5.100",
 " libswresample 4. 12.100 / 4. 12.100",
 " libpostproc 57. 3.100 / 57. 3.100",
 "[tcp @ 0x141950d0] Failed to resolve hostname my-bucket.s3.eu-central-1.amazonaws.com: System error",
 "[in#0 @ 0x14190900] Error opening input: Input/output error",
 "Error opening input file https://my-bucket.s3.eu-central-1.amazonaws.com/original/Testvideo.MOV?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential={redacted}&X-Amz-Date=20240209T212255Z&X-Amz-Expires=900&X-Amz-Security-Token={redacted}&X-Amz-Signature={redacted}&X-Amz-SignedHeaders=host&x-id=GetObject.",
 "Error opening input files: Input/output error",
 "",
 " at ChildProcess.exithandler (node:child_process:422:12)",
 " at ChildProcess.emit (node:events:518:28)",
 " at maybeClose (node:internal/child_process:1105:16)",
 " at ChildProcess._handle.onexit (node:internal/child_process:305:5)"
 ]
}
enter code here