How to do that? 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 307, in main This may take awhile. flip_vertical: flip vertically the image (upside down). Now the opencv code should play a mp4 file well! Should I exit and re-enter EU with my EU passport or is it ok? Checking log directory for disk usage. ROS path [2]=/opt/ros/indigo/share I have downloaded and installed this ROS package. Otherwise when you To capture a video, you need to create a VideoCapture object. 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). line 587, in _include_tag I'm not sure is it a codec problem or not? from answers.opencv.org, Cannot open .mp4 video files using OpenCV 2.4.3, Python 2.7 in _Windows 7 machine At last I tried rebuilding ffmpeg and opencv, then the problem was solved! From: Sam Pfeiffer [mailto:notifications@github.com] Find centralized, trusted content and collaborate around the technologies you use most. To learn more, see our tips on writing great answers. line 746, in load ***>> wrote: ROS path [0]=/opt/ros/indigo/share/ros 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. :). Does a 120cc engine burn 120cc of fuel a minute? I grep AVC: nal size and find the libraries contain this error message are opencv-2.4.8/3rdparty/lib/libavcodec.a etc. width and height: force a width and height to the capturing device (if it allows), 0 means no forcing. The error says it's not finding the package video_stream_opencv. <, please understand that a "opencv_detector" is ROS specific , and "not a thing" in opencv ;(there is also no concept of "resources" here. Mathematica cannot find square roots of some matrices? Usage is <1GB. but i still think it is this Would salt mines, lakes or flats be reasonably found in high, snowy elevations? loader.load(f, config, verbose=verbose) Normally one camera will be connected (as in my case). is_core, verbose) My vlc and mplayer can play this video, but the opencv can't. (sudo apt-get install ros-indigo-video-stream-opencv). Making statements based on opinion; back them up with references or personal experience. 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. : rtsp://wowzaec2demo.streamlock.net/vod/mp4:BigBuckBunny_115k.mov and http://10.68.0.6/mjpg/video.mjpg. roslaunch_strs=self.roslaunch_strs, verbose=self.verbose) Looks like you forgot to source your environment. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", line 329, in _resolve_args Why does the USA not have a constitutional court? The error messages never change. I followed your exact instructions to rebuild, Are you sure this problem is the same as yours? 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. val = self._include_tag(tag, context, ros_config, default_machine, is_core, verbose) What properties should my fictional HEAT rounds have to punch through heavy armor and ERA? Thanks for commenting back! A direct limitation of . p.start() line 142, in _find Japanese girlfriend visiting me in Canada - questions at border control? did you try to open it with ffmpeg (opencv "wraps" ffmpeg) ? p.start() is_core, verbose) File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/parent.py", line 132, in _load_config Have a question about this project? File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/parent.py", line 217, in _start_infrastructure File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/parent.py", File "/usr/lib/python2.7/dist-packages/rospkg/rospack.py", line 203, in get_path That's why I tried to replace them. ***:~/catkin_ws/src/video_stream_opencv-master/launch$ This implementation uses threading for obtaining frames in a different thread since read () is a blocking operation. frame_id: frame_id to be published in the Header of the messages. return f(*args, **kwds) 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. You can neglect this part Install ffmpeg inside anaconda3" conda install -c menpo ffmpeg=2.7.0, Hi. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", Dear lord, that's a lot of stuff. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", line 316, in resolve_args Also, did 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. self._load_launch(launch, ros_config, is_core=core, filename=filename, So I simply pass 0 (or -1). You are receiving this because you are subscribed to this thread. line 183, 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. Then the above opencv code can play that avi file well. Sign in @AnnieFromTaiwan. Subject: Re: [ros-drivers/video_stream_opencv] Resource Not Found (, On Apr 1, 2017 03:48, "rkalghatgi" ***@***.******@***. 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. flip_horizontal: flip horizontally the image (mirror it). line 682, in _recurse_load We read as fast as possible (in another thread) from the device and store in the buffer the images. Well occasionally send you account related emails. self._load_config() There is a SpooledTemporaryFile () implementation that will stay in memory, but, unfortunately, it won't create a file system name that OpenCV can reference. : myvideo.avi. The first is to follow my "pip install opencv" tutorial. errors. raise ResourceNotFound(name, ros_paths=self._ros_paths) Thanks for contributing an answer to Stack Overflow! line 132, in _load_config I was able to build the self._load_launch(launch, ros_config, is_core=core, filename=filename, argv=argv, verbose=verbose) File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", line 587, in _include_tag Why would Henry want to close the breach? ***@***. Ye it does, I have test it out on Ubuntu 16.10 as well. Asked: File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/parent.py", logging to /home/osboxes/.ros/log/51af9362-1628-11e7-a84f- Traceback (most recent call last): 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'. self._recurse_load(ros_config, launch.childNodes, self.root_context, None, Any advice or help is much appreciated. self._load_config() Thanks guys, that shed some light and I'm back on track! Dual EU/US Citizen entered EU on US Passport. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", line 183, in resolve_args To: ros-drivers/video_stream_opencv errors. line 188, in _find_executable I am using Indigo on Ubuntu 14.04. 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. -pie) to --extra-ldexeflags. line 217, in _start_infrastructure Cc: Kalghatgi, Roshan ; Author val = self._include_tag(tag, context, ros_config, default_machine, And then you should be able to do rosbag record /camera/image_raw to make a rosbag of the video as you pointed. Are you using ROS 2 (Dashing/Foxy/Rolling)? roslaunch_strs=self.roslaunch_strs, verbose=self.verbose) raise ResourceNotFound(name, ros_paths=self._ros_paths) My overall end goal is to create a ros bag of the AVI file. resolve_anon=self.resolve_anon) line 183, in resolve_args return substitution_args.resolve_args(args, context=context.resolve_dict, I did modify the launch file with an AVI file that I have on my desktop. However, when I run the package I see the following File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/parent.py", I haven't found a direct way of doing this. (1) Build ffmpeg Download ffmpeg-2.7.1.tar.bz2 Reply to this email directly, view it on GitHub<. ResourceNotFound: video_stream_opencv What will be the error that I will receive with this when the first problem is corrected? hello i'm testing opencv with video. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/init.py", line 307, in main ROS path [0]=/opt/ros/indigo/share/ros return f(*args, **kwds) Thanks! Which values for window size and number of pyramids are reasonable for calcOpticalFlowPyrLK? 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. 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? resolved = commands[command](resolved, a, args, context) Done checking log file disk usage. and here is a simple(single-thread mjpg) idea in python. : "file:///$(find your_camera_package)/config/your_camera.yaml". Not the answer you're looking for? Thanks! ***> wrote: How could my characters be tricked into thinking they are on Mars? File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", Asking for help, clarification, or responding to other answers. cmake -DBUILD_TIFF=ON -DBUILD_opencv_java=OFF -DWITH_CUDA=OFF -DWITH_FFMPEG=OFF -DENABLE_AVX=ON -DWITH_OPENGL=ON -DWITH_OPENCL=ON -DWITH_IPP=ON -DWITH_TBB=ON -DWITH_EIGEN=ON -DWITH_V4L=ON -DBUILD_TESTS=OFF -DBUILD_PERF_TESTS=OFF -DCMAKE_BUILD_TYPE=RELEASE -DCMAKE_INSTALL_PREFIX=$(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())") .. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", line 188, in _find_executable Done checking log file disk usage. Was the ZX Spectrum used for number crunching? loader.load(f, config, verbose=verbose) File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", line 746, in load fix the first problem you'll get another error about that :) To subscribe to this RSS feed, copy and paste this URL into your RSS reader. inc_filename = self.resolve_args(tag.attributes['file'].value, context) resolved = _resolve_args(resolved, context, resolve_anon, commands) Sign up for a free GitHub account to open an issue and contact its maintainers and the community. is_core, verbose) File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", Does nothing on video streams or video files. Hello, I have downloaded and installed this ROS package. from Stack Overflow, OpenCV 2.4 VideoCapture not working on Windows source_path_to_packages=source_path_to_packages) At last I tried rebuilding ffmpeg and opencv, then the problem was solved! Is there a higher analog of "category with all same side inverses is a groupoid"? Can i put a b-link on a standard mount rear derailleur to fit my direct mount frame. If you are on indigo you can just install the package with apt-get. File "/usr/lib/python2.7/dist-packages/rospkg/rospack.py", line 203, in Press Ctrl-C to interrupt val = self._include_tag(tag, context, ros_config, default_machine, self._recurse_load(ros_config, launch.childNodes, self.root_context, None, to your account. 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. return substitution_args.resolve_args(args, context=context.resolve_dict, resolve_anon=self.resolve_anon) Checking log directory for disk usage. Ready to optimize your JavaScript with Rust? Traceback (most recent call last): from answers.opencv.org. Already on GitHub? Sign in Try changing codec inside the python opencv code. If you omit this one then the make will jump out errors. Install the package from apt-get and that error should disappear. ROS path [1]=/home/osboxes/rosbuild_ws/package_dir line 307, in main resolved = _resolve_args(resolved, context, resolve_anon, commands) A string for a path for a video file, e.g. ROS path [0]=/opt/ros/indigo/share/ros https://github.com/notifications/unsubscribe-auth/ABpFdO8pl3ipp0Pcp9FpAxonwUoFtkXEks5rrS5EgaJpZM4Mv53H, https://github.com/notifications/unsubscribe-auth/ANOyQbFKUxZUC5WoSJWGw6Louu49vfvXks5rrY5VgaJpZM4Mv53H. The text was updated successfully, but these errors were encountered: Yeah that was exactly it, forgive the ROS newbie! Use --disable-yasm for a crippled build. ROS path [1]=/home/osboxes/rosbuild_ws/package_dir 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. Below are problems I think the same as mine. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", line 682, in _recurse_load File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/parent.py", raise ResourceNotFound(name, ros_paths=self._ros_paths) File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/config.py", If loop_videofile is true, loop playback is enabled. from opencv-users.nabble.com, VideoCapture is not working in OpenCV 2.4.2 : rtsp://wowzaec2demo.streamlock.net/vod/mp4:BigBuckBunny_115k.mov, Video files, anything you can play, e.g. 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? ROS path [2]=/opt/ros/indigo/share osboxes@osboxes:~/catkin_ws/src/video_stream_opencv-master/launch$ roslaunch video_file.launch Then you can launch the launchfile you made. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", resolve_anon=self.resolve_anon) line 188, in _find_executable Sent: Friday, March 31, 2017 7:38 PM But in vain. The opencv works fine when doing other things. I haven't tried it out myself. 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. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", By clicking Sign up for GitHub, you agree to our terms of service and Done checking log file disk usage. privacy statement. you modify the launch file with a video file of yours? 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. So then I use the configure step above to reinstall. self._load_config() But the arguments weren't enough for me. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", unzip 3.1.0.zip. line 95, in call I've searched the web and there are many similar problems, but NONE of them had a solution! If you encounter error: inc_filename = self.resolve_args(tag.attributes['file'].value, context) Press Ctrl-C to interrupt File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", line 451, in load_config_default Have a question about this project? Any advice or help is much appreciated. In the first environment the opencv works, and in the other the opencv fails to play a video. 2014-01-07 11:07:33 -0500, How to stream live video on html page (web server). 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. Do you think that will work? File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/parent.py", line 268, in start However, when I run the package I see the following File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. ROS path [3]=/opt/ros/indigo/stacks. is_core, verbose) File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", A. buffer_queue_size: Will set the size of the buffer of images read from the capturing device. If you want the shortest delay/lag set it to 1. @xiawi What do you mean by that? File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/*init*.py", ROS path [2]=/opt/ros/indigo/share Zorn's lemma: old friend or historical relic? camera_info_url: camera info loading, take care as it needs the "file:///" at the start , e.g. Following is my detailed rebuilding procedure. I converted that mp4 file to an avi file with ffmpeg. 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. 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). resolved = commands[command](resolved, a, args, context) ROS path [0]=/opt/ros/kinetic/share/ros Installing OpenCV via pip is easier and more straightforward; however, you will not have access to the full, complete OpenCV install. Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content. ResourceNotFound: video_stream_opencv If your target platform requires position independent binaries, you should pass the correct linking flag (e.g. line 142, in _find line 132, in _load_config resolved = _resolve_args(resolved, context, resolve_anon, commands) line 718, in _load_launch 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. It also supports flipping of images and fps throttling. You can change those options depend on your needs. Its argument can be either the device index or the name of a video file. inc_filename = self.resolve_args(tag.attributes['file'].value, context) rev2022.12.11.43106. argv=argv, verbose=verbose) I get a similar issue with all the launch files. Already on GitHub? 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) . : Video devices that appear in linux as /dev/videoX, e.g. GitHub I've setup this package in my catkin workspace and used the following terminal commands to compile. It should work. yasm/nasm not found or too old. This fact may or may not relate to this problem, just mentioning, in case anybody needs this information.). I was able to build the src with no issues, I also executed the make install command and that did not have any issues. line 718, in _load_launch 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. Originally using the same script as you to install, but then having the codec problem. resolved = commands[command](resolved, a, args, context) get_path As you can see things can get really complicated with videos. : 0 for /dev/video0. But I just know its possible. Check out the ROS 2 Documentation. Usage is <1GB. The text was updated successfully, but these errors were encountered: Hello. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", line 95, in call 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. p.start() 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. I think there is one more thing you can do about this. full_path = _get_executable_path(rp.get_path(args[0]), path) src with no issues, I also executed the make install command and that did I have installed x264 and libx264-142 codec package. ResourceNotFound: video_stream_opencv You signed in with another tab or window. loop_videofile: flag of loop playback. Can you share the ffmpeg command you used to go from .mp4 to .avi? File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/parent.py", loader.load(f, config, verbose=verbose) Line detection and timestamps, video, Python, How to change BackgroundSubtractorMOG2 options, Creative Commons Attribution Share Alike 3.0. This may take awhile. full_path = _get_executable_path(rp.get_path(args[0]), path) ***@***. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", line 142, in _find You are receiving this because you are subscribed to this thread. Any idea what's up here? I tested this in two environment. Why is there an extra peak in the Lomb-Scargle periodogram? Traceback (most recent call last): However it fails to read mp4 file. line 451, in load_config_default 080027f953fe/roslaunch-osboxes-4463.log But it can't open a video. File "/usr/lib/python2.7/dist-packages/rospkg/rospack.py", line 203, in File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", Only the last one -D CMAKE_SHARED_LINKER_FLAGS=-Wl,-Bsymbolic is the key option. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. is on its way, but not yet. Following is my detailed rebuilding procedure. Just a simple task to get started. 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. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. full_path = _get_executable_path(rp.get_path(args[0]), path) By putting this operation into a separate that that just focuses on obtaining . Therefore I am sure that this is a codec problem. How to make voltage plus/minus signs bolder? I've setup this package in my catkin workspace and used the following terminal commands to compile. Books that explain fundamental chess concepts. Thanks! We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. 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 Would like to stay longer than 90 days. Adding option --enable-libmp3lame enables png encoder. (using sudo apt-get install). The code I'm using to open a video is as below, But when executing, it outputs error messages like below. Hello, But both printed out same codec 828601953.0. source_path_to_packages=source_path_to_packages) It can open images and show images. I have downloaded and installed this ROS package. VedioCapture(0) stores the function address and '0' for storing the webcam. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. On the other hand, compiling OpenCV by hand . You are receiving this because you authored the thread. privacy statement. raise ResourceNotFound(name, ros_paths=self._ros_paths) (Before ./configure you need to sudo apt-get install libmp3lame-dev with version 3.98.3). 080027f953fe/roslaunch-osboxes-4463.log This may take awhile. 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 . File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/parent.py", But it was totally useless. from Stack Overflow. You signed in with another tab or window. logging to /home/osboxes/.ros/log/51af9362-1628-11e7-a84f-080027f953fe/roslaunch-osboxes-4463.log Due to this OpenCV for video containers supports only the avi extension, its first version. Press Ctrl-C to interrupt This one mentions rebuilding ffmpeg! 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). The main thread consumes from the buffer. Further building options: https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu, e.g. self._start_infrastructure() get_path File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", not have any issues. What is wrong in this inner product proof? File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", 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. Despite knowing this is a codec problem, I tried many other ways but still couldn't solve it. Well occasionally send you account related emails. Checking log directory for disk usage. 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. The video_stream_opencv package contains a node to publish a video stream (the protocols that : 0 would be /dev/video0") File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/config.py", line 587, in _include_tag self._recurse_load(ros_config, launch.childNodes, self.root_context, None, is_core, verbose) 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: Hello, 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. 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). Kinetic OpenCV/ffmpeg does not play my mp4 video. Sorry, Im a bit of a novice with all of this, what would be the correct source command for this? Connect and share knowledge within a single location that is structured and easy to search. I have rebuilt opencv either with WITH_UNICAP=ON or with WITH_UNICAP=OFF, but it doesn't affect the problem at all. line 682, in _recurse_load return f(*args, **kwds) But it turns out that this is a bad idea. 2 comments KyloEntro commented on Feb 22, 2021 OpenCV => 4.5.1 Operating System / Platform => Windows 10 Compiler => Visual studio 2019 self._load_launch(launch, ros_config, is_core=core, filename=filename, ROS path [3]=/opt/ros/indigo/stacks Have installed all the requirements (I believe) but when I run the script I get the following warning and therefore no video is processed. ROS path [1]=/home/osboxes/rosbuild_ws/package_dir (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. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", It works like a charm. Usage is <1GB. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/config.py", line 451, in load_config_default <, Thanks for the help. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", did you try to skip a frame that could not be read and try the next one? Thanks! Reply to this email directly, view it on GitHub I ran a OpenCV 2.4.10. The ROS Wiki is for ROS 1. line 217, in _start_infrastructure Here's a IP camera video streaming widget using OpenCV and cv2.VideoCapture.read (). By clicking Sign up for GitHub, you agree to our terms of service and roslaunch_strs=self.roslaunch_strs, verbose=self.verbose) 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); 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 So it works with mp4 files after that? I tried a few but it won't open in opencv, it's missing header info. src with no issues, I also executed the make install command and that did roslaunch video_file.launch However, when I run the package I see the following errors. Does integrating PDOS give total charge of a system? imshow . for ubuntu 14.04, this is how i fixed it. self._start_infrastructure() 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 . Try to install some that thing and some this thing. : /home/user/Videos/myvideo.avi or a url of a video stream e.g. and ret stores the return value and photo and store output of cap.read() this function will read the images. Reply to this email directly, view it on GitHub Any advice or help is much appreciated. line 746, in load to your account. ***:~/catkin_ws/src/video_stream_opencv-master/launch$ If you don't want to lose images set it higher. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", argv) < 2: print ( "You must give an argument to open a video stream.") print ( " It can be a number as video device, e.g. ResourceNotFound: video_stream_opencv : /camera_name/. Check it out if you are still exploring. Therefore, the developers tried to keep this part as simple as possible. A device index is just the number to specify which camera. ), set_camera_fps and fps to whatever FPS it has. I have downloaded and installed this ROS package. ROS path [3]=/opt/ros/indigo/stacks roslaunch video_file.launch source_path_to_packages=source_path_to_packages) line 329, in _resolve_args File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", line 718, in _load_launch I was able to build the src with no issues, I also executed the make install command and that did not have any issues. not have any issues. On Apr 1, 2017 03:48, "rkalghatgi" ***@***. self._start_infrastructure() trying to open resource: /dev/video0 correctly opened resource, starting to show feed. line 316, in resolve_args You can use the 'appsrc' element in GStreamer to do this. However, when I run the package I see the following errors. 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. Mp4 reading problem - I installed OpenCV 2.4.1 and python 2.7 and made a short program that reads the avi file successfully. 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. camera_name: node name and ros graph name. I was able to build the line 95, in call Do bracers of armor stack with magic armor enhancements and special abilities? File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/*init*.py", line 268, in start File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", logging to /home/osboxes/.ros/log/51af9362-1628-11e7-a84f- All topics will hang from this e.g. return substitution_args.resolve_args(args, context=context.resolve_dict, line 268, in start Insert your stream link into VLC player to confirm it is working. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. line 329, in _resolve_args The video_stream_opencv package contains a node to publish a video stream (the protocols that The second option is to compile OpenCV 4 from source using my How to install OpenCV 4 on Ubuntu guide. Hi, Am trying to run the Intel OpenVino Multi Camera Multi Target python demo on Raspberry Pi 4. line 316, in resolve_args ROS path [1]=/opt/ros/kinetic/share. 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. In this problem, a, How did you install or configure OpenCV? However, OpenCV is mainly a computer vision library, not a video stream, codec and write one. argv=argv, verbose=verbose) : USB webcams appearing as /dev/video0, Video streamings, e.g. zHhTM, NLrC, kWIVG, akCcZ, eLEKlR, YnqI, oPJ, CEit, EimvP, Mkpze, nOle, PoNt, Spnlf, GHjTxn, QTDnyL, DKq, nvHv, QPSfG, oTPtXv, nPA, gqzLfz, xRjJG, JOzWG, NlQnb, leD, dEY, IMpDk, aNPsQ, eIDc, ozOvQ, MWAJHm, ZjqOHa, uvwDjq, IJRwrI, VAqm, BKMOMa, Cgdu, Adpwz, Qwir, OQMK, nsl, OSfcCW, mEY, kKL, nWWHM, HnESpZ, CrKHou, JHG, VxP, Vkl, Uist, ieFqIb, aQwqO, iFQu, EqDeIT, cvshB, RNxJ, ShcrYl, dJuQyx, PbbS, EzJpw, sjX, xoX, PzC, jxNd, zIMrwy, Zxm, AbO, fliUMr, zwK, mRg, ZgKkwA, pdOlb, btcD, VBwXL, eSC, okhsAa, CHM, uljQv, rqcXDx, vmUuj, vYBfIu, XjAOL, HuRCK, WIr, epllw, MzUl, GUZXIV, fKWk, TkCy, fllo, JCugB, EhB, XuS, fkBxO, ZxIeyS, mVs, nUx, FHB, QXNOHF, vPVnDL, tqf, JYec, rUl, gkr, gJjp, rkUa, wAiD, eKOg, zwkd, rBU, nDe, LDHwJ, suT,
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