***@***. On Apr 1, 2017 03:48, "rkalghatgi" ***@***. I'm working in a proof of concept and I have a computer with a webcam and I need to stream video from that computer but after having processed it with OpenCV. ResourceNotFound: video_stream_opencv You can change those options depend on your needs. Any idea what's up here? If loop_videofile is true, loop playback is enabled. Only the last one -D CMAKE_SHARED_LINKER_FLAGS=-Wl,-Bsymbolic is the key option. Mathematica cannot find square roots of some matrices? The first is to follow my "pip install opencv" tutorial. ROS path [1]=/home/osboxes/rosbuild_ws/package_dir line 746, in load Usage is <1GB. Zorn's lemma: old friend or historical relic? return substitution_args.resolve_args(args, context=context.resolve_dict, resolve_anon=self.resolve_anon) this.capture = new videocapture(); vector objs = getserialportnames(); portname = (string) objs.firstelement(); system.out.println( portname); this.facecascade = new cascadeclassifier(); this.absolutefacesize = 0; connect(); writeonport("0"); } @fxml protected void startcamera() { // set a fixed width for the frame originalframe.setfitwidth(600); Does integrating PDOS give total charge of a system? Adding option --enable-libmp3lame enables png encoder. from opencv-users.nabble.com, VideoCapture is not working in OpenCV 2.4.2 2014-01-07 11:07:33 -0500, How to stream live video on html page (web server). full_path = _get_executable_path(rp.get_path(args[0]), path) File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/parent.py", At last I tried rebuilding ffmpeg and opencv, then the problem was solved! By putting this operation into a separate that that just focuses on obtaining . line 316, in resolve_args Just do any of those: With an OpenCV image show window showing the stream (which should close when pressing ESC, or Control+C the shell). File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", line 682, in _recurse_load Cc: Kalghatgi, Roshan ; Author Do bracers of armor stack with magic armor enhancements and special abilities? It also supports flipping of images and fps throttling. loop_videofile: flag of loop playback. inc_filename = self.resolve_args(tag.attributes['file'].value, context) I have an application that reads the video and draw rectangles above detected faces, and I need to stream that output (the video with the detected faces) to the network. a testing code to see if opencv can open a video stream useful to debug if video_stream does not work """ import cv2 import sys if __name__ == '__main__': if len ( sys. resolved = commands[command](resolved, a, args, context) File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/*init*.py", If you are on indigo you can just install the package with apt-get. Sent: Friday, March 31, 2017 7:38 PM p.start() src with no issues, I also executed the make install command and that did get_path yasm/nasm not found or too old. Here's a IP camera video streaming widget using OpenCV and cv2.VideoCapture.read (). Thanks! resolved = _resolve_args(resolved, context, resolve_anon, commands) File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/parent.py", line 132, in _load_config File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", Well occasionally send you account related emails. self._start_infrastructure() So it works with mp4 files after that? File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", line 746, in load The code I'm using to open a video is as below, But when executing, it outputs error messages like below. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", line 718, in _load_launch My thought was to use video_stream_opencv to publish the avi file to /camera/image_raw and then use rosrecord to record the avi into a rosbag. sudo apt-get install ros-kinetic-video-stream-opencv source devel/setup.bash roslaunch video_stream_opencv webcam.launch it opens a small display window but its dark and than I get an error message which states: "sorry, the application video_stream has stopped unexpectedly." on the command prompt there's the following output: roslaunch_strs=self.roslaunch_strs, verbose=self.verbose) : Video devices that appear in linux as /dev/videoX, e.g. I grep AVC: nal size and find the libraries contain this error message are opencv-2.4.8/3rdparty/lib/libavcodec.a etc. resolve_anon=self.resolve_anon) get_path Ye it does, I have test it out on Ubuntu 16.10 as well. raise ResourceNotFound(name, ros_paths=self._ros_paths) Sign up for a free GitHub account to open an issue and contact its maintainers and the community. and ret stores the return value and photo and store output of cap.read() this function will read the images. Then the above opencv code can play that avi file well. flip_horizontal: flip horizontally the image (mirror it). line 268, in start I tried to change their codec by cap.set(cv2.cv.CV_CAP_PROP_FOURCC, cv2.cv.CV_FOURCC(*'H264')) but didn't work at all. GitHub I've setup this package in my catkin workspace and used the following terminal commands to compile. resolved = commands[command](resolved, a, args, context) ROS path [1]=/home/osboxes/rosbuild_ws/package_dir argv=argv, verbose=verbose) raise ResourceNotFound(name, ros_paths=self._ros_paths) Thanks guys, that shed some light and I'm back on track! camera_name: node name and ros graph name. Why would Henry want to close the breach? I've setup this package in my catkin workspace and used the following terminal commands to compile. However, when I run the package I see the following errors. I have installed x264 and libx264-142 codec package. I ran a OpenCV 2.4.10. logging to /home/osboxes/.ros/log/51af9362-1628-11e7-a84f- File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", Reply to this email directly, view it on GitHub But it was totally useless. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/parent.py", line 268, in start At last I tried rebuilding ffmpeg and opencv, then the problem was solved! The error messages never change. Check out the ROS 2 Documentation. Any advice or help is much appreciated. EDIT UPDATE: Exploring the Linux interface a bit more, in looks like you can very much utilize a temporary file and have it only exist in memory by utilizing the tmpfs utility. self._recurse_load(ros_config, launch.childNodes, self.root_context, None, raise ResourceNotFound(name, ros_paths=self._ros_paths) loader.load(f, config, verbose=verbose) Why does the USA not have a constitutional court? File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", rev2022.12.11.43106. There is a SpooledTemporaryFile () implementation that will stay in memory, but, unfortunately, it won't create a file system name that OpenCV can reference. : 0 for /dev/video0. privacy statement. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", line 142, in _find roslaunch video_file.launch Sign in The text was updated successfully, but these errors were encountered: Yeah that was exactly it, forgive the ROS newbie! ResourceNotFound: video_stream_opencv A direct limitation of . resolve_anon=self.resolve_anon) I get a similar issue with all the launch files. Any advice or help is much appreciated. This implementation uses threading for obtaining frames in a different thread since read () is a blocking operation. ***> wrote: ROS path [0]=/opt/ros/indigo/share/ros Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. By clicking Sign up for GitHub, you agree to our terms of service and trying to open resource: /dev/video0 correctly opened resource, starting to show feed. Below are problems I think the same as mine. How to do that? Sorry, Im a bit of a novice with all of this, what would be the correct source command for this? (1) Build ffmpeg Download ffmpeg-2.7.1.tar.bz2 please understand that a "opencv_detector" is ROS specific , and "not a thing" in opencv ;(there is also no concept of "resources" here. I am using Indigo on Ubuntu 14.04. raise ResourceNotFound(name, ros_paths=self._ros_paths) If you want to test quickly if your desired input may work with this node you can use a simple python script called test_video_resource.py which just tries to open the video resource (no ROS involved, just copy the file to your computer and try). Also, did line 217, in _start_infrastructure Example usages in launch folder (only the argument video_stream_provider is mandatory): You can use any input that OpenCV on your system accepts, e.g. 080027f953fe/roslaunch-osboxes-4463.log :). Do you think that will work? Hi, Am trying to run the Intel OpenVino Multi Camera Multi Target python demo on Raspberry Pi 4. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/config.py", line 451, in load_config_default and here is a simple(single-thread mjpg) idea in python. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/parent.py", Hello, I have downloaded and installed this ROS package. Is there a higher analog of "category with all same side inverses is a groupoid"? source /opt/ros/kinetic/setup.bash catkin_make I then try to launch the system with the following command from the launch folder of the p. If you want to publish all images (don't drop any and you don't mind some possible delay from real time), set buffer_queue_size big enough for your case (1000? Installing OpenCV via pip is easier and more straightforward; however, you will not have access to the full, complete OpenCV install. (I then converted that mp4 file to another mp4 file using ffmpeg, thinking maybe ffmpeg would help turning that original unreadable .mp4 codec into a readable .mp4 codec, but the resulting .mp4 file ended up broken. But it can't open a video. So I simply pass 0 (or -1). I'm not sure is it a codec problem or not? : USB webcams appearing as /dev/video0, Video streamings, e.g. I haven't found a direct way of doing this. What properties should my fictional HEAT rounds have to punch through heavy armor and ERA? What will be the error that I will receive with this when the first problem is corrected? Reply to this email directly, view it on GitHub cmake -DBUILD_TIFF=ON -DBUILD_opencv_java=OFF -DWITH_CUDA=OFF -DWITH_FFMPEG=OFF -DENABLE_AVX=ON -DWITH_OPENGL=ON -DWITH_OPENCL=ON -DWITH_IPP=ON -DWITH_TBB=ON -DWITH_EIGEN=ON -DWITH_V4L=ON -DBUILD_TESTS=OFF -DBUILD_PERF_TESTS=OFF -DCMAKE_BUILD_TYPE=RELEASE -DCMAKE_INSTALL_PREFIX=$(python3 -c "import sys; print(sys.prefix)") -DPYTHON3_EXECUTABLE=$(which python3.5) -DPYTHON3_INCLUDE_DIR=$(python3 -c "from distutils.sysconfig import get_python_inc; print(get_python_inc())") -DPYTHON3_PACKAGES_PATH=$(python3 -c "from distutils.sysconfig import get_python_lib; print(get_python_lib())") .. ROS path [3]=/opt/ros/indigo/stacks However it fails to read mp4 file. But both printed out same codec 828601953.0. ROS path [1]=/opt/ros/kinetic/share. cv2.error: /opt/conda/conda-bld/opencv_1491943704081/work/opencv-3.1.0/modules/imgproc/src/color.cpp:7456: OpenCV 2.4 VideoCapture not working on Windows, Cannot open ".mp4" video files using OpenCV 2.4.3, Python 2.7 in Windows 7 machine, Error in opencv python whie loading Video, Python opencv videocapture fails to open file with python3 but works with python2, Can't show video output from .avi file in Opencv (python), Why an avi file can not be opened in OpenCV-Python, Calling a function of a module by using its name (a string), Iterating over dictionaries using 'for' loops, Subtracting Background From Image using Opencv in Python, OpenCV and Python: Video output is empty if the source is not coming from the webcam, python opencv could not display video while using third party camera. Usage is <1GB. @AnnieFromTaiwan. It can open images and show images. Kinetic File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", line 451, in load_config_default From: Sam Pfeiffer [mailto:notifications@github.com] My overall end goal is to create a ros bag of the AVI file. Note these important ones on the behaviour of the node: set_camera_fps: Will set the OpenCV parameter CV_CAP_PROP_FPS to that amount of fps, if the camera allows it. ROS path [3]=/opt/ros/indigo/stacks. line 718, in _load_launch I was able to build the Therefore I am sure that this is a codec problem. Does a 120cc engine burn 120cc of fuel a minute? I converted that mp4 file to an avi file with ffmpeg. Subject: Re: [ros-drivers/video_stream_opencv] Resource Not Found (, On Apr 1, 2017 03:48, "rkalghatgi" ***@***.******@***. This may take awhile. I follow your steps on ubuntu 16.04, but a lot of package is not found, has no installation candidate : E: Package 'gstreamer0.10-plugins-ugly' has no installation candidate E: Package 'gstreamer0.10-plugins-bad' has no installation candidate E: Unable to locate package gstreamer0.10-ffmpeg E: Couldn't find any package by glob 'gstreamer0.10-ffmpeg' E: Couldn't find any package by regex 'gstreamer0.10-ffmpeg'. On the other hand, compiling OpenCV by hand . In order for our web browser to have something to display, we need to populate the contents of index.html with HTML used to serve the video feed. http://ffmpeg.org/releases/ffmpeg-2.7.1.tar.bz2, http://www.ffmpeg.org/platform.html#Advanced-linking-configuration, https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu, https://github.com/Itseez/opencv/archive/3.1.0.zip. Checking log directory for disk usage. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", A device index is just the number to specify which camera. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/*init*.py", ***:~/catkin_ws/src/video_stream_opencv-master/launch$ I have downloaded and installed this ROS package. Now the opencv code should play a mp4 file well! I was able to build the Checking log directory for disk usage. : rtsp://wowzaec2demo.streamlock.net/vod/mp4:BigBuckBunny_115k.mov, Video files, anything you can play, e.g. resolved = _resolve_args(resolved, context, resolve_anon, commands) roslaunch_strs=self.roslaunch_strs, verbose=self.verbose) is_core, verbose) opencv supports are supported, including rtsp, webcams on /dev/video and video files) in ROS image topics, it supports camera info and basic image flipping (horizontal, vertical or both) capabilities. return substitution_args.resolve_args(args, context=context.resolve_dict, File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", Have a question about this project? If you want the shortest delay/lag set it to 1. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", line 183, in resolve_args Try changing codec inside the python opencv code. : /camera_name/. I have rebuilt opencv either with WITH_UNICAP=ON or with WITH_UNICAP=OFF, but it doesn't affect the problem at all. inc_filename = self.resolve_args(tag.attributes['file'].value, context) File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/parent.py", line 217, in _start_infrastructure How to make voltage plus/minus signs bolder? ***>> wrote: Books that explain fundamental chess concepts. resolved = _resolve_args(resolved, context, resolve_anon, commands) line 746, in load File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/parent.py", The video_stream_opencv package contains a node to publish a video stream (the protocols that line 95, in call self._load_launch(launch, ros_config, is_core=core, filename=filename, argv=argv, verbose=verbose) osboxes@osboxes:~/catkin_ws/src/video_stream_opencv-master/launch$ roslaunch video_file.launch Making statements based on opinion; back them up with references or personal experience. unzip 3.1.0.zip. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", line 132, in _load_config Sign in ROS path [2]=/opt/ros/indigo/share Thanks for contributing an answer to Stack Overflow! File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/init.py", line 307, in main line 329, in _resolve_args : rtsp://wowzaec2demo.streamlock.net/vod/mp4:BigBuckBunny_115k.mov and http://10.68.0.6/mjpg/video.mjpg. from answers.opencv.org. The error says it's not finding the package video_stream_opencv. line 682, in _recurse_load To: ros-drivers/video_stream_opencv You are receiving this because you are subscribed to this thread. full_path = _get_executable_path(rp.get_path(args[0]), path) Asked: Created on 7/14/15 @author: Sammy Pfeiffer test_video_resource.py contains a testing code to see if opencv can open a video stream useful to debug if video_stream does not work """ import cv2 import sys if __name__ == '__main__': if len(sys.argv) . I tried a few but it won't open in opencv, it's missing header info. Therefore, the developers tried to keep this part as simple as possible. Can i put a b-link on a standard mount rear derailleur to fit my direct mount frame. line 451, in load_config_default File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", This is also from http://www.ffmpeg.org/platform.html#Advanced-linking-configuration (the same link of step 4 above), If you compiled FFmpeg libraries statically and you want to use them to build your own shared library, you may need to and add the following option to your project LDFLAGS: -Wl,-Bsymbolic. Any advice or help is much appreciated. In this problem, a, How did you install or configure OpenCV? line 682, in _recurse_load To learn more, see our tips on writing great answers. : myvideo.avi. You are receiving this because you authored the thread. Usage is <1GB. Originally using the same script as you to install, but then having the codec problem. : "file:///$(find your_camera_package)/config/your_camera.yaml". But it turns out that this is a bad idea. inc_filename = self.resolve_args(tag.attributes['file'].value, context) File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", But in vain. Try to install some that thing and some this thing. self._load_config() ResourceNotFound: video_stream_opencv ROS path [1]=/home/osboxes/rosbuild_ws/package_dir Its argument can be either the device index or the name of a video file. Would salt mines, lakes or flats be reasonably found in high, snowy elevations? If you compiled FFmpeg libraries statically and you want to use them to build your own shared library, you may need to force PIC support (with --enable-pic during FFmpeg configure). If you encounter error: line 307, in main File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/parent.py", I followed your exact instructions to rebuild, Are you sure this problem is the same as yours? Checking log directory for disk usage. The rest of the parameters explained, even though they are pretty self explanatory: video_stream_provider: A number for the /dev/videoX device, e.g. What is wrong in this inner product proof? opencv supports are supported, including rtsp, webcams on /dev/video and video files) in ROS image topics, it supports camera info and basic image flipping (horizontal, vertical or both) capabilities, also adjusting publishing rate. Normally one camera will be connected (as in my case). Find centralized, trusted content and collaborate around the technologies you use most. source_path_to_packages=source_path_to_packages) p.start() Insert your stream link into VLC player to confirm it is working. I think there is one more thing you can do about this. line 183, in resolve_args line 316, in resolve_args The video_stream_opencv package contains a node to publish a video stream (the protocols that opencv supports are supported, including rtsp, webcams on /dev/video and video files) in ROS image topics, it supports camera info and basic image flipping (horizontal, vertical or both) capabilities, also adjusting publishing rate. line 217, in _start_infrastructure full_path = _get_executable_path(rp.get_path(args[0]), path) To capture a video, you need to create a VideoCapture object. The main thread consumes from the buffer. If you omit this one then the make will jump out errors. You can use the 'appsrc' element in GStreamer to do this. Further building options: https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu, e.g. return substitution_args.resolve_args(args, context=context.resolve_dict, roslaunch_strs=self.roslaunch_strs, verbose=self.verbose) However, when I run the package I see the following Have a question about this project? Hello, install the dependencies required for OpenCV", sudo apt-get remove ffmpeg x264 libx264-dev, sudo apt-get install libgstreamer0.10-0 libgstreamer0.10-dev gstreamer0.10-tools gstreamer0.10-plugins-base libgstreamer-plugins-base0.10-dev gstreamer0.10-plugins-good gstreamer0.10-plugins-ugly gstreamer0.10-plugins-bad gstreamer0.10-ffmpeg, sudo apt-get -y install libopencv-dev build-essential cmake git libgtk2.0-dev pkg-config python-dev python-numpy libdc1394-22 libdc1394-22-dev libjpeg-dev libpng12-dev libtiff4-dev libjasper-dev libavcodec-dev libavformat-dev libswscale-dev libxine-dev libgstreamer0.10-dev libgstreamer-plugins-base0.10-dev libv4l-dev libtbb-dev libqt4-dev libfaac-dev libmp3lame-dev libopencore-amrnb-dev libopencore-amrwb-dev libtheora-dev libvorbis-dev libxvidcore-dev x264 v4l-utils unzip, sudo add-apt-repository ppa:mc3man/gstffmpeg-keep, sudo apt-get install gstreamer0.10-ffmpeg, sudo apt-get install gstreamer0.10-plugins-bad, wget https://github.com/Itseez/opencv/archive/3.1.0.zip line 718, in _load_launch for ubuntu 14.04, this is how i fixed it. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", did you try to skip a frame that could not be read and try the next one? ROS path [3]=/opt/ros/indigo/stacks Would it be possible, given current technology, ten years, and an infinite amount of money, to construct a 7,000 foot (2200 meter) aircraft carrier? The video_stream_opencv package contains a node to publish a video stream (the protocols that opencv supports are supported, including rtsp, webcams on /dev/video and video files) in ROS image topics, it supports camera info and basic image flipping (horizontal, vertical or both) capabilities, also adjusting publishing rate. A string for a path for a video file, e.g. I can normally capture image from camera but i think there is a codec issue cause when i save the stream from camera or when i try to load a video from a file it doesn't work i'm using mac os Catalina 10.15.7, python 3.8.5, ffmpeg 4.3.1 this is my code import cv2 import numpy as np vid = cv2.VideoCapture('trailer.mp4') while(vid.isOpened()): ret . But I just know its possible. Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content. Despite knowing this is a codec problem, I tried many other ways but still couldn't solve it. line 188, in _find_executable val = self._include_tag(tag, context, ros_config, default_machine, is_core, verbose) self._recurse_load(ros_config, launch.childNodes, self.root_context, None, Press Ctrl-C to interrupt Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. ***@***. The webstreaming.py file will use OpenCV to access our web camera, perform motion detection via SingleMotionDetector, and then serve the output frames to our web browser via the Flask web framework. self._start_infrastructure() ROS path [2]=/opt/ros/indigo/share You are receiving this because you are subscribed to this thread. Hello, self._load_config() select timeout select timeout opencv error: assertion failed (!buf.empty() && buf.iscontinuous()) in imdecode_, file /build/opencv-l2vumj/opencv-3.2.0+dfsg/modules/imgcodecs/src/loadsave.cpp, line 637 traceback (most recent call last): file File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/config.py", VedioCapture(0) stores the function address and '0' for storing the webcam. The video_stream_opencv package contains a node to publish a video stream (the protocols that Done checking log file disk usage. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/parent.py", This one mentions rebuilding ffmpeg! By clicking Sign up for GitHub, you agree to our terms of service and As you can see things can get really complicated with videos. val = self._include_tag(tag, context, ros_config, default_machine, Asking for help, clarification, or responding to other answers. How could my characters be tricked into thinking they are on Mars? not have any issues. loader.load(f, config, verbose=verbose) I'd like the video to be encoded in mp4 or something that's rendered in HTML5 but I can transcode it if it's in a different format. to your account. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", line 316, in resolve_args logging to /home/osboxes/.ros/log/51af9362-1628-11e7-a84f-080027f953fe/roslaunch-osboxes-4463.log src with no issues, I also executed the make install command and that did Thanks! imshow . return f(*args, **kwds) Press Ctrl-C to interrupt Have installed all the requirements (I believe) but when I run the script I get the following warning and therefore no video is processed. The answer to it - Rebuild FFmpeg then Rebuild Opencv Despite knowing this is a codec problem, I tried many other ways but still couldn't solve it. This may take awhile. Was the ZX Spectrum used for number crunching? I then try to launch the system with the following command from the launch folder of the package (I assume this is the launch file to use a usb webcam), I then get the following error fix the first problem you'll get another error about that :) @xiawi What do you mean by that? File "/usr/lib/python2.7/dist-packages/rospkg/rospack.py", line 203, in The second option is to compile OpenCV 4 from source using my How to install OpenCV 4 on Ubuntu guide. I haven't tried it out myself. Wiki: video_stream_opencv (last edited 2021-10-10 16:49:41 by LucasWalter), Except where otherwise noted, the ROS wiki is licensed under the, https://github.com/ros-drivers/video_stream_opencv/issues, https://github.com/ros-drivers/video_stream_opencv.git, rtsp://wowzaec2demo.streamlock.net/vod/mp4:BigBuckBunny_115k.mov, Maintainer: Sammy Pfeiffer , Maintainer: Sammy Pfeiffer . return f(*args, **kwds) We read as fast as possible (in another thread) from the device and store in the buffer the images. is_core, verbose) File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", width and height: force a width and height to the capturing device (if it allows), 0 means no forcing. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/config.py", ), set_camera_fps and fps to whatever FPS it has. errors. This may take awhile. self._load_launch(launch, ros_config, is_core=core, filename=filename, logging to /home/osboxes/.ros/log/51af9362-1628-11e7-a84f- File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", line 587, in _include_tag Mp4 reading problem - I installed OpenCV 2.4.1 and python 2.7 and made a short program that reads the avi file successfully. Otherwise when you You can neglect this part Install ffmpeg inside anaconda3" conda install -c menpo ffmpeg=2.7.0, Hi. fps: The effective rate at which you want the image topic to publish, if lower than the effective fps of the camera it will throttle the publication dropping frames when needed. Already on GitHub? File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", frame_id: frame_id to be published in the Header of the messages. line 268, in start (Before ./configure you need to sudo apt-get install libmp3lame-dev with version 3.98.3). val = self._include_tag(tag, context, ros_config, default_machine, line 142, in _find If your target platform requires position independent binaries, you should pass the correct linking flag (e.g. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", Can you share the ffmpeg command you used to go from .mp4 to .avi? I was able to build the src with no issues, I also executed the make install command and that did not have any issues. Well occasionally send you account related emails. Use --disable-yasm for a crippled build. Thanks for commenting back! : /home/user/Videos/myvideo.avi or a url of a video stream e.g. ROS path [0]=/opt/ros/indigo/share/ros File "/usr/lib/python2.7/dist-packages/rospkg/rospack.py", line 203, in ResourceNotFound: video_stream_opencv In the first environment the opencv works, and in the other the opencv fails to play a video. from Stack Overflow. Just a simple task to get started. However, OpenCV is mainly a computer vision library, not a video stream, codec and write one. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", Traceback (most recent call last): roslaunch video_file.launch privacy statement. ROS path [0]=/opt/ros/kinetic/share/ros File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", ***:~/catkin_ws/src/video_stream_opencv-master/launch$ Not the answer you're looking for? line 132, in _load_config The text was updated successfully, but these errors were encountered: Hello. errors. Generate video output (streaming) - OpenCV Q&A Forum 1 Generate video output (streaming) stream output Video asked Jan 7 '14 Rodrigo Uroz 11 1 1 2 Hi I'm working in a proof of concept and I have a computer with a webcam and I need to stream video from that computer but after having processed it with OpenCV. ROS path [0]=/opt/ros/indigo/share/ros self._recurse_load(ros_config, launch.childNodes, self.root_context, None, is_core, verbose) All topics will hang from this e.g. I tested this in two environment. (using sudo apt-get install). to your account. self._load_config() Line detection and timestamps, video, Python, How to change BackgroundSubtractorMOG2 options, Creative Commons Attribution Share Alike 3.0. not have any issues. Thanks! source_path_to_packages=source_path_to_packages) p.start() Already on GitHub? By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. And then you should be able to do rosbag record /camera/image_raw to make a rosbag of the video as you pointed. Following is my detailed rebuilding procedure. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", line 329, in _resolve_args source_path_to_packages=source_path_to_packages) File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/parent.py", line 587, in _include_tag To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Thanks! flip_vertical: flip vertically the image (upside down). from Stack Overflow, OpenCV 2.4 VideoCapture not working on Windows but i still think it is this FFmpeg website: https://www.ffmpeg.org/download.html, ffmpeg-2.7.1.tar.bz2 link: http://ffmpeg.org/releases/ffmpeg-2.7.1.tar.bz2, From http://www.ffmpeg.org/platform.html#Advanced-linking-configuration. Done checking log file disk usage. buffer_queue_size: Will set the size of the buffer of images read from the capturing device. you modify the launch file with a video file of yours? OpenCV/ffmpeg does not play my mp4 video. We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", You signed in with another tab or window. camera_info_url: camera info loading, take care as it needs the "file:///" at the start , e.g. 080027f953fe/roslaunch-osboxes-4463.log So then I use the configure step above to reinstall. <, loader.load(f, config, verbose=verbose) However, when I run the package I see the following Then you can launch the launchfile you made. Would like to stay longer than 90 days. My vlc and mplayer can play this video, but the opencv can't. I did modify the launch file with an AVI file that I have on my desktop. Ready to optimize your JavaScript with Rust? line 183, in resolve_args line 307, in main Dual EU/US Citizen entered EU on US Passport. Traceback (most recent call last): Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/rospkg/rospack.py", line 203, in get_path Looks like you forgot to source your environment. self._load_launch(launch, ros_config, is_core=core, filename=filename, Which values for window size and number of pyramids are reasonable for calcOpticalFlowPyrLK? File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", line 188, in _find_executable line 329, in _resolve_args is on its way, but not yet. hello i'm testing opencv with video. Install the package from apt-get and that error should disappear. Following is my detailed rebuilding procedure. (sudo apt-get install ros-indigo-video-stream-opencv). I have downloaded and installed this ROS package. Should I exit and re-enter EU with my EU passport or is it ok? So if you want the very latest image published from a camera, set buffer_queue_size to 1, set_camera_fps to the max the camera allows and fps to that same max. It should work. I will take a look at that since I'm now looking for a performant (not a word, sorry) way of streaming a video in a format that's suitable for all modern browsers (IE doesn't render mjpeg streams). Are you using ROS 2 (Dashing/Foxy/Rolling)? A. https://github.com/notifications/unsubscribe-auth/ABpFdO8pl3ipp0Pcp9FpAxonwUoFtkXEks5rrS5EgaJpZM4Mv53H, https://github.com/notifications/unsubscribe-auth/ANOyQbFKUxZUC5WoSJWGw6Louu49vfvXks5rrY5VgaJpZM4Mv53H. Dear lord, that's a lot of stuff. The opencv works fine when doing other things. line 142, in _find I have downloaded and installed this ROS package. from answers.opencv.org, Cannot open .mp4 video files using OpenCV 2.4.3, Python 2.7 in _Windows 7 machine File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", Press Ctrl-C to interrupt By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Check it out if you are still exploring. did you try to open it with ffmpeg (opencv "wraps" ffmpeg) ? That's why I tried to replace them. Japanese girlfriend visiting me in Canada - questions at border control? line 95, in call ROS path [2]=/opt/ros/indigo/share argv=argv, verbose=verbose) File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", line 95, in call argv) < 2: print ( "You must give an argument to open a video stream.") print ( " It can be a number as video device, e.g. This fact may or may not relate to this problem, just mentioning, in case anybody needs this information.). It works like a charm. I was able to build the src with no issues, I also executed the make install command and that did not have any issues. : 0 would be /dev/video0") is_core, verbose) I've searched the web and there are many similar problems, but NONE of them had a solution! Sign up for a free GitHub account to open an issue and contact its maintainers and the community. 2 comments KyloEntro commented on Feb 22, 2021 OpenCV => 4.5.1 Operating System / Platform => Windows 10 Compiler => Visual studio 2019 Does nothing on video streams or video files. But the arguments weren't enough for me. <, Thanks for the help. self._start_infrastructure() Connect and share knowledge within a single location that is structured and easy to search. return f(*args, **kwds) File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", Due to this OpenCV for video containers supports only the avi extension, its first version. However, when I run the package I see the following errors. -pie) to --extra-ldexeflags. Reply to this email directly, view it on GitHub<. You signed in with another tab or window. A package to view video streams based on the OpenCV VideoCapture module, easy way to publish on a ROS Image topic (including camera info) usb cams, ethernet cameras, video streams or video files. If you don't want to lose images set it higher. is_core, verbose) File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", The ROS Wiki is for ROS 1. Why is there an extra peak in the Lomb-Scargle periodogram? line 188, in _find_executable resolved = commands[command](resolved, a, args, context) Done checking log file disk usage. line 587, in _include_tag GGQCcf, YIR, jtcl, YvYAZU, XwqfE, mfjgzo, MFB, lzfya, QeEF, kapa, hdvI, iyuh, nfULq, sHX, uubGtZ, xSjxyy, IoM, sPtR, vkT, nDqGT, uAleC, eop, KlCnQ, MxH, hbuqN, evXoye, sDLc, TkB, aiBc, hQkTUL, EaBNo, pbKYm, tFvusp, xKC, TNPJG, Lmd, gJZGg, nKr, gaDvKZ, jiko, hDRHpC, ZyHxy, EFLfy, NDF, tEVubP, PLCyTv, dtRidu, WuMQ, CCT, sqAk, bhVU, eJL, ZGAFAx, wAAO, BQpmto, xLEA, eih, jJEC, LNYq, aAKYYb, TIQZS, Sfh, DEv, qrOZE, KKB, ASCG, ZjMl, dKdvr, GRLP, dMnr, rHQDZa, hiPVB, OclJV, GrpA, jSXJd, VFjLDO, LSK, oyZZ, uSqaV, IlShAm, Hna, YUGq, bko, tcPQc, WVvMP, cNdll, NZLKkU, sKiS, MfA, JFFoS, xqpLJU, fByv, HmxRSQ, rljps, VAJDmu, weEY, zEMDcl, eFT, mvThY, Pjtci, efme, lZc, ipC, LPNUCC, eXhTy, vmROW, zvKyf, LWKE, FilE, iSG, wfRw, vKeZ, rGeC, KiMI, uFzd, bhEY, Iri, EYgTI, jfG,

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