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Sur d’autres sites (4469)
-
offloading to ffmpeg via named pipes in c#/dotnet core
1er avril 2022, par bepI tried to break this down to the base elements so I hope this is clear. I want to take in a network stream, it may be a 1 way, it may be a protocol that requires 2 way communication, such as RTMP during handshake.


I want to pass that stream straight through to a spawned FFMPEG process. I then want to capture the output of FFMPEG, in this example I just want to pipe it out to a file. The file is not my end goal, but for simplicity if I can get that far I think I'll be ok.




I want the code to be as plain as possible and offload the core processing to FFMPEG. If I ask FFMPEG to output webrtc stream, a file, whatever, I just want to capture that. FFMPEG shouldn't be used directly, just indirectly via
IncomingConnectionHandler.

Only other component is OBS, which I am using to create the RTMP stream coming in.


As things stand now, running this results in the following error, which I'm a little unclear on. I don't feel like I'm causing concurrent reads at any point.


System.InvalidOperationException: Concurrent reads are not allowed
 at Medallion.Shell.Throw`1.If(Boolean condition, String message)
 at Medallion.Shell.Streams.Pipe.ReadAsync(Byte[] buffer, Int32 offset, Int32 count, TimeSpan timeout, CancellationToken cancellationToken)
 at Medallion.Shell.Streams.Pipe.PipeOutputStream.ReadAsync(Byte[] buffer, Int32 offset, Int32 count, CancellationToken cancellationToken)
 at System.IO.Stream.ReadAsync(Memory`1 buffer, CancellationToken cancellationToken)
 at System.IO.StreamReader.ReadBufferAsync(CancellationToken cancellationToken)
 at System.IO.StreamReader.ReadLineAsyncInternal()
 at Medallion.Shell.Streams.MergedLinesEnumerable.GetEnumeratorInternal()+MoveNext()
 at System.String.Join(String separator, IEnumerable`1 values)
 at VideoIngest.IncomingRtmpConnectionHandler.OnConnectedAsync(ConnectionContext connection) in Program.cs:line 55
 at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Infrastructure.KestrelConnection`1.ExecuteAsync()


Code :


namespace VideoIngest
{
 public class IncomingRtmpConnectionHandler : ConnectionHandler
 {
 private readonly ILogger<incomingrtmpconnectionhandler> logger;

 public IncomingRtmpConnectionHandler(ILogger<incomingrtmpconnectionhandler> logger)
 {
 this.logger = logger;
 }

 public override async Task OnConnectedAsync(ConnectionContext connection)
 {
 logger?.LogInformation("connection started");

 var outputFileName = @"C:\Temp\bunny.mp4";

 var rtmpPassthroughPipeName = Guid.NewGuid().ToString();
 var cmdPath = @"C:\Opt\ffmpeg\bin\ffmpeg.exe";
 var cmdArgs = $"-i pipe:{rtmpPassthroughPipeName} -preset slow -c copy -f mp4 -y pipe:1";

 var cancellationToken = connection.ConnectionClosed;
 var rtmpStream = connection.Transport;

 using (var outputStream = new FileStream(outputFileName, FileMode.Create))
 using (var cmd = Command.Run(cmdPath, options: o => { o.StartInfo(i => i.Arguments = cmdArgs); o.CancellationToken(cancellationToken); }))
 {
 // create a pipe to pass the RTMP data straight to FFMPEG. This code should be dumb to proto etc being used
 var ffmpegPassthroughStream = new NamedPipeServerStream(rtmpPassthroughPipeName, PipeDirection.InOut, 10, PipeTransmissionMode.Byte, System.IO.Pipes.PipeOptions.Asynchronous);

 // take the network stream and pass data to/from ffmpeg process
 var fromFfmpegTask = ffmpegPassthroughStream.CopyToAsync(rtmpStream.Output.AsStream(), cancellationToken);
 var toFfmpegTask = rtmpStream.Input.AsStream().CopyToAsync(ffmpegPassthroughStream, cancellationToken);

 // take the ffmpeg process output (not stdout) into target file
 var outputTask = cmd.StandardOutput.PipeToAsync(outputStream);

 while (!outputTask.IsCompleted && !outputTask.IsCanceled)
 {
 var errs = cmd.GetOutputAndErrorLines();
 logger.LogInformation(string.Join(Environment.NewLine, errs));

 await Task.Delay(1000);
 }

 CommandResult result = result = cmd.Result;

 if (result != null && result.Success)
 {
 logger.LogInformation("Created file");
 }
 else
 {
 logger.LogError(result.StandardError);
 }
 }

 logger?.LogInformation("connection closed");
 }
 }

 public class Startup
 {
 public void ConfigureServices(IServiceCollection services) { }

 public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
 {
 app.Run(async (context) =>
 {
 var log = context.RequestServices.GetRequiredService>();
 await context.Response.WriteAsync("Hello World!");
 });
 }
 }

 public class Program
 {
 public static void Main(string[] args)
 {
 CreateHostBuilder(args).Build().Run();
 }

 public static IWebHostBuilder CreateHostBuilder(string[] args) =>
 WebHost
 .CreateDefaultBuilder(args)
 .ConfigureServices(services =>
 {
 services.AddLogging(options =>
 {
 options.AddDebug().AddConsole().SetMinimumLevel(LogLevel.Information);
 });
 })
 .UseKestrel(options =>
 {
 options.ListenAnyIP(15666, builder =>
 {
 builder.UseConnectionHandler<incomingrtmpconnectionhandler>();
 });

 options.ListenLocalhost(5000);

 // HTTPS 5001
 options.ListenLocalhost(5001, builder =>
 {
 builder.UseHttps();
 });
 })
 .UseStartup<startup>();
 }
 

}
</startup></incomingrtmpconnectionhandler></incomingrtmpconnectionhandler></incomingrtmpconnectionhandler>

Questions :


- 

- Is this a valid approach, do you see any fundamental issues ?
- Is the pipe naming correct, is the convention just
pipe:someName? - Any ideas on what specifically may be causing the
Concurrent reads are not allowed? - If #3 is solved, does the rest of this seem valid ?










-
Destreamer (FFMPEG / Youtube-DL) - Can't download video, Invalid DTS, Invalid timestamps message
1er avril 2020, par toprun91I'm using Destreamer a program that essentially lets you download microsoft stream videos by passing a key URL with a cookie down to Youtube-dl which then calls into ffmpeg.



Whenever I try to download a video using this program I get tons of repeating lines of text (errors ?) like this :



[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56400120, dts=56402820, size=6081
[mp4 @ 0000024876f525c0] Invalid DTS: 53717850 PTS: 53715150 in output stream 0:0, replacing by guess
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56406060, dts=56412090, size=6145
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56412090, dts=56414880, size=6515
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56406060, dts=56412090, size=6145
[mp4 @ 0000024876f525c0] Invalid DTS: 53727120 PTS: 53721090 in output stream 0:0, replacing by guess
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56412090, dts=56414880, size=6515
[mp4 @ 0000024876f525c0] Invalid DTS: 53729910 PTS: 53727120 in output stream 0:0, replacing by guess
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56418030, dts=56420820, size=6780
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56418030, dts=56420820, size=6780
[mp4 @ 0000024876f525c0] Invalid DTS: 53735850 PTS: 53733060 in output stream 0:0, replacing by guess
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56424060, dts=56430090, size=6668
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56430090, dts=56432880, size=6995
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56424060, dts=56430090, size=6668
[mp4 @ 0000024876f525c0] Invalid DTS: 53745120 PTS: 53739090 in output stream 0:0, replacing by guess
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56430090, dts=56432880, size=6995
[mp4 @ 0000024876f525c0] Invalid DTS: 53747910 PTS: 53745120 in output stream 0:0, replacing by guess
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56436120, dts=56442060, size=6342
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56442060, dts=56444850, size=6110
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56436120, dts=56442060, size=6342
[mp4 @ 0000024876f525c0] Invalid DTS: 53757090 PTS: 53751150 in output stream 0:0, replacing by guess
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56442060, dts=56444850, size=6110
[mp4 @ 0000024876f525c0] Invalid DTS: 53759880 PTS: 53757090 in output stream 0:0, replacing by guess
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56448090, dts=56454030, size=5750
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56454030, dts=56456820, size=6514
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56448090, dts=56454030, size=5750
[mp4 @ 0000024876f525c0] Invalid DTS: 53769060 PTS: 53763120 in output stream 0:0, replacing by guess
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56454030, dts=56456820, size=6514
[mp4 @ 0000024876f525c0] Invalid DTS: 53771850 PTS: 53769060 in output stream 0:0, replacing by guess
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56460060, dts=56466090, size=6843
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56466090, dts=56468880, size=7053
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56460060, dts=56466090, size=6843
[mp4 @ 0000024876f525c0] Invalid DTS: 53781120 PTS: 53775090 in output stream 0:0, replacing by guess
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56466090, dts=56468880, size=7053
[mp4 @ 0000024876f525c0] Invalid DTS: 53783910 PTS: 53781120 in output stream 0:0, replacing by guess
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56472120, dts=56478060, size=6297
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56478060, dts=56480850, size=6633
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56472120, dts=56478060, size=6297
[mp4 @ 0000024876f525c0] Invalid DTS: 53793090 PTS: 53787150 in output stream 0:0, replacing by guess
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56478060, dts=56480850, size=6633
[mp4 @ 0000024876f525c0] Invalid DTS: 53795880 PTS: 53793090 in output stream 0:0, replacing by guess
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56484090, dts=56490120, size=6026
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56490120, dts=56492820, size=6428
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56484090, dts=56490120, size=6026
[mp4 @ 0000024876f525c0] Invalid DTS: 53805150 PTS: 53799120 in output stream 0:0, replacing by guess
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56490120, dts=56492820, size=6428
[mp4 @ 0000024876f525c0] Invalid DTS: 53807850 PTS: 53805150 in output stream 0:0, replacing by guess
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56496060, dts=56502090, size=5738
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56502090, dts=56504880, size=5911
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56496060, dts=56502090, size=5738
[mp4 @ 0000024876f525c0] Invalid DTS: 53817120 PTS: 53811090 in output stream 0:0, replacing by guess
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56502090, dts=56504880, size=5911
[mp4 @ 0000024876f525c0] Invalid DTS: 53819910 PTS: 53817120 in output stream 0:0, replacing by guess
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56508030, dts=56514060, size=5860
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56514060, dts=56516850, size=6851
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56508030, dts=56514060, size=5860
[mp4 @ 0000024876f525c0] Invalid DTS: 53829090 PTS: 53823060 in output stream 0:0, replacing by guess
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56514060, dts=56516850, size=6851
[mp4 @ 0000024876f525c0] Invalid DTS: 53831880 PTS: 53829090 in output stream 0:0, replacing by guess
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56520090, dts=56526120, size=7342
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56526120, dts=56528820, size=7951
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56520090, dts=56526120, size=7342
[mp4 @ 0000024876f525c0] Invalid DTS: 53841150 PTS: 53835120 in output stream 0:0, replacing by guess
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56526120, dts=56528820, size=7951
[mp4 @ 0000024876f525c0] Invalid DTS: 53843850 PTS: 53841150 in output stream 0:0, replacing by guess
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56532060, dts=56538090, size=7998
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56538090, dts=56540790, size=8181
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56532060, dts=56538090, size=7998
[mp4 @ 0000024876f525c0] Invalid DTS: 53853120 PTS: 53847090 in output stream 0:0, replacing by guess
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56538090, dts=56540790, size=8181
[mp4 @ 0000024876f525c0] Invalid DTS: 53855820 PTS: 53853120 in output stream 0:0, replacing by guess
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56544030, dts=56550060, size=8707
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56550060, dts=56552850, size=8878
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56544030, dts=56550060, size=8707
[mp4 @ 0000024876f525c0] Invalid DTS: 53865090 PTS: 53859060 in output stream 0:0, replacing by guess
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56550060, dts=56552850, size=8878
[mp4 @ 0000024876f525c0] Invalid DTS: 53867880 PTS: 53865090 in output stream 0:0, replacing by guess



This continues to fill the screen and scroll with the same type of lines of text and then after a couple of hours it does eventually download the video but without sound.



I am trying to work out why this is happening and why the video downloads without sound.



Some key information :



- 

- I am using windows + powershell but also experience the same thing on
Linux (Kubuntu)
- I am using the latest versions of FFMPEG, youtube-dl node.js
- The program (destreamer) brings up a chromium window to authenticate.
In the Chromium window the video doesn't actually play properly and
gives Error code 0x20400003 The video plays fine in all other
browsers I have including Edge, Chrome, and Firefox









Thanks for your help !


-
RTMP server 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.e. act as RTMP server).


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://0.0.0.0:8000/live", cv2.CAP_FFMPEG)

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


And the output :


[tcp @ 00000192c490d640] Connection to tcp://0.0.0.0:8000 failed: Error number -138 occurred
[rtmp @ 00000192c490d580] Cannot open connection tcp://0.0.0.0:8000 
Cannot open video source


edit2 : Output with debug logging turned on :


output of the python script with debug logging on:
[DEBUG:0@0.017] global videoio_registry.cpp:218 cv::`anonymous-namespace'::VideoBackendRegistry::VideoBackendRegistry VIDEOIO: Builtin backends(9): FFMPEG(1000); GSTREAMER(990); INTEL_MFX(980); MSMF(970); DSHOW(960); CV_IMAGES(950); CV_MJPEG(940); UEYE(930); OBSENSOR(920)
[DEBUG:0@0.026] global videoio_registry.cpp:242 cv::`anonymous-namespace'::VideoBackendRegistry::VideoBackendRegistry VIDEOIO: Available backends(9): FFMPEG(1000); GSTREAMER(990); INTEL_MFX(980); MSMF(970); DSHOW(960); CV_IMAGES(950); CV_MJPEG(940); UEYE(930); OBSENSOR(920)
[ INFO:0@0.031] global videoio_registry.cpp:244 cv::`anonymous-namespace'::VideoBackendRegistry::VideoBackendRegistry VIDEOIO: Enabled backends(9, sorted by priority): FFMPEG(1000); GSTREAMER(990); INTEL_MFX(980); MSMF(970); DSHOW(960); CV_IMAGES(950); CV_MJPEG(940); UEYE(930); OBSENSOR(920)
[ WARN:0@0.037] global cap.cpp:132 cv::VideoCapture::open VIDEOIO(FFMPEG): trying capture filename='rtmp://192.168.254.101:8000/live' ...
[ INFO:0@0.040] global backend_plugin.cpp:383 cv::impl::getPluginCandidates Found 2 plugin(s) for FFMPEG
[ INFO:0@0.043] global plugin_loader.impl.hpp:67 cv::plugin::impl::DynamicLib::libraryLoad load C:\Users\me\src\opencv\.venv\Lib\site-packages\cv2\opencv_videoio_ffmpeg490_64.dll => OK
[ INFO:0@0.047] global backend_plugin.cpp:50 cv::impl::PluginBackend::initCaptureAPI Found entry: 'opencv_videoio_capture_plugin_init_v1'
[ INFO:0@0.049] global backend_plugin.cpp:169 cv::impl::PluginBackend::checkCompatibility Video I/O: initialized 'FFmpeg OpenCV Video I/O Capture plugin': built with OpenCV 4.9 (ABI/API = 1/1), current OpenCV version is '4.9.0' (ABI/API = 1/1)
[ INFO:0@0.055] global backend_plugin.cpp:69 cv::impl::PluginBackend::initCaptureAPI Video I/O: plugin is ready to use 'FFmpeg OpenCV Video I/O Capture plugin'
[ INFO:0@0.058] global backend_plugin.cpp:84 cv::impl::PluginBackend::initWriterAPI Found entry: 'opencv_videoio_writer_plugin_init_v1'
[ INFO:0@0.061] global backend_plugin.cpp:169 cv::impl::PluginBackend::checkCompatibility Video I/O: initialized 'FFmpeg OpenCV Video I/O Writer plugin': built with OpenCV 4.9 (ABI/API = 1/1), current OpenCV version is '4.9.0' (ABI/API = 1/1)
[ INFO:0@0.065] global backend_plugin.cpp:103 cv::impl::PluginBackend::initWriterAPI Video I/O: plugin is ready to use 'FFmpeg OpenCV Video I/O Writer plugin'
[tcp @ 00000266b2f0d0c0] Connection to tcp://192.168.254.101:8000 failed: Error number -138 occurred
[rtmp @ 00000266b2f0cfc0] Cannot open connection tcp://192.168.254.101:8000
[ WARN:0@5.630] global cap.cpp:155 cv::VideoCapture::open VIDEOIO(FFMPEG): can't create capture
[DEBUG:0@5.632] global cap.cpp:225 cv::VideoCapture::open VIDEOIO: choosen backend does not work or wrong. Please make sure that your computer support chosen backend and OpenCV built with right flags.
Cannot open video source
[ INFO:1@5.661] global plugin_loader.impl.hpp:74 cv::plugin::impl::DynamicLib::libraryRelease unload C:\Users\me\src\opencv\.venv\Lib\site-packages\cv2\opencv_videoio_ffmpeg490_64.dll


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
-----------------------------------------------------------------


edit : Receiving the stream with ffplay from command line :


>ffplay.exe -i "rtmp://0.0.0.0:8000/live" -listen 1 -f flv
ffplay version 2024-02-04-git-7375a6ca7b-full_build-www.gyan.dev Copyright (c) 2003-2024 the FFmpeg developers
 built with gcc 12.2.0 (Rev10, Built by MSYS2 project)
 configuration: --enable-gpl --enable-version3 --enable-static --pkg-config=pkgconf --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libaribb24 --enable-libaribcaption --enable-libdav1d --enable-libdavs2 --enable-libuavs3d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libaom --enable-libjxl --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libharfbuzz --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-dxva2 --enable-d3d11va --enable-libvpl --enable-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libcodec2 --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
 libavutil 58. 36.101 / 58. 36.101
 libavcodec 60. 38.100 / 60. 38.100
 libavformat 60. 20.100 / 60. 20.100
 libavdevice 60. 4.100 / 60. 4.100
 libavfilter 9. 17.100 / 9. 17.100
 libswscale 7. 6.100 / 7. 6.100
 libswresample 4. 13.100 / 4. 13.100
 libpostproc 57. 4.100 / 57. 4.100
[rtmp @ 0000018a564ed340] Unexpected stream , expecting livef=0/0
 Last message repeated 1 times
Input #0, flv, from 'rtmp://0.0.0.0:8000/live':KB sq= 0B f=0/0
 Metadata:
 fileSize : 0
 audiochannels : 2
 2.1 : false
 3.1 : false
 4.0 : false
 4.1 : false
 5.1 : false
 7.1 : false
 encoder : obs-output module (libobs version 30.0.2)
 Duration: 00:00:00.00, start: 0.000000, bitrate: N/A
 Stream #0:0: Audio: aac (LC), 48000 Hz, stereo, fltp, 163 kb/s
 Stream #0:1: Video: h264 (Constrained Baseline), yuv420p(tv, bt709, progressive), 1280x720 [SAR 1:1 DAR 16:9], 2560 kb/s, 30 fps, 30 tbr, 1k tbn
 7.54 A-V: -0.024 fd= 18 aq= 24KB vq= 498KB sq= 0B f=0/0


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