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Can Java use the OpenCV library bound by JavaCPP for CUDA-accelerated decoding of RTSP streams #2194

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sulv9999 opened this issue Feb 27, 2024 · 2 comments

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@sulv9999
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Can Java use the OpenCV library bound by JavaCPP for CUDA-accelerated decoding of RTSP streams
I have not succeeded.
I can confirm that the RTSP stream address I am using is correct, and I am able to open it using VLC.

package org.example;
import org.bytedeco.opencv.opencv_core.GpuMat;
import org.bytedeco.opencv.opencv_core.Mat;
import org.bytedeco.opencv.opencv_videoio.VideoCapture;
public class Main {
public static void main(String[] args) {
VideoCapture videoCapture = new VideoCapture("rtsp://admin:[email protected]:554/h265/ch1/main/video");
if (videoCapture.isOpened()) {
System.out.println(1);
}
GpuMat gpuMat = new GpuMat();
Mat mat = new Mat();
if (videoCapture.read(gpuMat)) {
gpuMat.upload(mat);
}
}
}

ERROR:[email protected]] global cap.cpp:164 open VIDEOIO(CV_IMAGES): raised OpenCV exception:

OpenCV(4.7.0) /__w/javacpp-presets/javacpp-presets/opencv/cppbuild/linux-x86_64/opencv-4.7.0/modules/videoio/src/cap_images.cpp:253: error: (-5:Bad argument) CAP_IMAGES: can't find starting number (in the name of file): rtsp://admin:[email protected]:554/h265/ch1/main/video in function 'icvExtractPattern'

Exception in thread "main" java.lang.RuntimeException: OpenCV(4.7.0) /__w/javacpp-presets/javacpp-presets/opencv/cppbuild/linux-x86_64/opencv-4.7.0/modules/core/src/matrix_wrap.cpp:1689: error: (-213:The function/feature is not implemented) CUDA support is not enabled in this OpenCV build (missing HAVE_CUDA) in function 'release'

at org.bytedeco.opencv.opencv_videoio.VideoCapture.read(Native Method)
at org.example.Main.main(Main.java:23)
@saudet
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saudet commented Feb 27, 2024

Please use FFmpegFrameGrabber

@saudet
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saudet commented Feb 27, 2024

Duplicate of bytedeco/javacpp-presets#1478

@saudet saudet marked this as a duplicate of bytedeco/javacpp-presets#1478 Feb 27, 2024
@saudet saudet closed this as completed Feb 27, 2024
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